Calaveras Big Trees Weather Records (USC00041277)
Record envelope, standing records and threshold days for Calaveras Big Trees (USC00041277), California, United States, with 98 years of record.
Key Facts for Calaveras Big Trees
- Calaveras Big Trees (USC00041277) is a weather station in California, United States at 38.28 latitude and -120.31 longitude, 1,431 m (4,695 ft) above sea level.
- The station reports from 1929 to 2026, 98 years of record.
- 1,464 records set at Calaveras Big Trees still stand.
- Records are tracked for tmax, tmin, prcp, snow, snwd: an element needs 30 years of data to be eligible.
- Calaveras Big Trees set a daily record high minimum temperature of 18.3 C (64.9 F) on 10 August 2026.
About the Station
- Location: California, United States, 38.28 latitude, -120.31 longitude.
- Elevation: 1,431 m (4,695 ft).
- Period of record: 1929 to 2026, 98 years.
- Eligible elements: tmax, tmin, prcp, snow, snwd.
Daily Record Envelope and 2026
2 days at or beyond a record| Month | Highest record high | Lowest record low | 2026 highest maximum | 2026 lowest minimum |
|---|---|---|---|---|
| Jan | 22.8 C (73.0 F) | -17.2 C (1.0 F) | 18.9 C (66.0 F) | -4.4 C (24.1 F) |
| Feb | 27.8 C (82.0 F) | -16.1 C (3.0 F) | 17.2 C (63.0 F) | -1.7 C (28.9 F) |
| Mar | 27.8 C (82.0 F) | -13.3 C (8.1 F) | 25.6 C (78.1 F) | -2.2 C (28.0 F) |
| Apr | 31.1 C (88.0 F) | -9.4 C (15.1 F) | 20.6 C (69.1 F) | -1.7 C (28.9 F) |
| May | 33.9 C (93.0 F) | -6.1 C (21.0 F) | 25.6 C (78.1 F) | 0.0 C (32.0 F) |
| Jun | 37.8 C (100.0 F) | -6.1 C (21.0 F) | 27.8 C (82.0 F) | 7.8 C (46.0 F) |
| Jul | 41.7 C (107.1 F) | -0.6 C (30.9 F) | 31.7 C (89.1 F) | 13.3 C (55.9 F) |
| Aug | 41.1 C (106.0 F) | 0.0 C (32.0 F) | 31.7 C (89.1 F) | 10.6 C (51.1 F) |
| Sep | 41.1 C (106.0 F) | -2.2 C (28.0 F) | n/a | n/a |
| Oct | 34.4 C (93.9 F) | -6.7 C (19.9 F) | n/a | n/a |
| Nov | 31.7 C (89.1 F) | -12.8 C (9.0 F) | n/a | n/a |
| Dec | 25.6 C (78.1 F) | -17.8 C (0.0 F) | n/a | n/a |
Which Years Hold Standing Records
1,464 standing records| Year set | Standing records |
|---|---|
| 1929 | 19 |
| 1930 | 76 |
| 1931 | 73 |
| 1932 | 87 |
| 1933 | 51 |
| 1934 | 19 |
| 1935 | 23 |
| 1936 | 6 |
| 1937 | 14 |
| 1938 | 9 |
| 1939 | 9 |
| 1940 | 7 |
| 1941 | 6 |
| 1942 | 14 |
| 1943 | 18 |
| 1944 | 4 |
| 1945 | 7 |
| 1946 | 3 |
| 1947 | 13 |
| 1948 | 11 |
| 1949 | 19 |
| 1950 | 27 |
| 1951 | 8 |
| 1952 | 9 |
| 1953 | 10 |
| 1954 | 15 |
| 1955 | 14 |
| 1956 | 13 |
| 1957 | 12 |
| 1958 | 20 |
| 1959 | 11 |
| 1960 | 12 |
| 1961 | 10 |
| 1962 | 14 |
| 1963 | 10 |
| 1964 | 21 |
| 1965 | 19 |
| 1966 | 19 |
| 1967 | 24 |
| 1968 | 17 |
| 1969 | 9 |
| 1970 | 13 |
| 1971 | 19 |
| 1972 | 24 |
| 1973 | 11 |
| 1974 | 9 |
| 1975 | 17 |
| 1976 | 16 |
| 1977 | 14 |
| 1978 | 9 |
| 1979 | 4 |
| 1980 | 5 |
| 1981 | 8 |
| 1982 | 7 |
| 1983 | 6 |
| 1984 | 4 |
| 1985 | 18 |
| 1986 | 18 |
| 1987 | 20 |
| 1988 | 13 |
| 1989 | 15 |
| 1990 | 13 |
| 1991 | 8 |
| 1992 | 5 |
| 1993 | 6 |
| 1994 | 7 |
| 1995 | 8 |
| 1996 | 18 |
| 1997 | 7 |
| 1998 | 10 |
| 1999 | 16 |
| 2000 | 19 |
| 2001 | 9 |
| 2002 | 7 |
| 2003 | 22 |
| 2004 | 10 |
| 2005 | 3 |
| 2006 | 11 |
| 2007 | 8 |
| 2008 | 15 |
| 2009 | 6 |
| 2010 | 14 |
| 2011 | 12 |
| 2012 | 6 |
| 2014 | 9 |
| 2015 | 26 |
| 2016 | 7 |
| 2017 | 21 |
| 2018 | 10 |
| 2019 | 12 |
| 2020 | 36 |
| 2021 | 11 |
| 2022 | 18 |
| 2023 | 7 |
| 2024 | 6 |
| 2025 | 5 |
| 2026 | 24 |
All-Time Record Progression
7 new records| Date | Kind | Detail |
|---|---|---|
| 1960-06-01 | Record high minimum temperature | Record high minimum temperature 21.1 C (70.0 F) |
| 1963-02-01 | Record daily precipitation | Record daily precipitation 205.7 mm (8.1 in) |
| 1990-12-21 | Record low maximum temperature | Record low maximum temperature -7.2 C (19.0 F) |
| 1990-12-22 | Record low maximum temperature | Record low maximum temperature -7.8 C (18.0 F) |
| 2008-07-10 | Record high minimum temperature | Record high minimum temperature 21.7 C (71.1 F) |
| 2021-01-27 | Record daily snowfall | Record daily snowfall 84.3 cm (33.2 in) |
| 2021-01-28 | Record daily snowfall | Record daily snowfall 88.9 cm (35.0 in) |
Wettest Day of Each Month
Feb: 205.7 mm (8.1 in)| Month | Record daily precipitation (mm) | Date |
|---|---|---|
| Jan | 199.4 mm (7.9 in) | 31 January 1963 |
| Feb | 205.7 mm (8.1 in) | 1 February 1963 |
| Mar | 138.4 mm (5.4 in) | 22 March 2018 |
| Apr | 114.8 mm (4.5 in) | 11 April 1982 |
| May | 116.1 mm (4.6 in) | 19 May 1957 |
| Jun | 53.6 mm (2.1 in) | 7 June 1936 |
| Jul | 55.1 mm (2.2 in) | 10 July 1974 |
| Aug | 56.1 mm (2.2 in) | 15 August 1976 |
| Sep | 113.5 mm (4.5 in) | 19 September 1959 |
| Oct | 156.0 mm (6.1 in) | 24 October 2021 |
| Nov | 170.2 mm (6.7 in) | 18 November 1950 |
| Dec | 202.2 mm (8.0 in) | 11 December 1937 |
Period of Record Coverage
1929 to 2026| Year | Days with data | Share of year | Complete |
|---|---|---|---|
| 1929 | 38 | 10% | No |
| 1930 | 360 | 99% | Yes |
| 1931 | 359 | 98% | Yes |
| 1932 | 366 | 100% | Yes |
| 1933 | 364 | 100% | Yes |
| 1934 | 364 | 100% | Yes |
| 1935 | 309 | 85% | No |
| 1936 | 362 | 99% | Yes |
| 1937 | 365 | 100% | Yes |
| 1938 | 363 | 99% | Yes |
| 1939 | 363 | 99% | Yes |
| 1940 | 363 | 99% | Yes |
| 1941 | 362 | 99% | Yes |
| 1942 | 360 | 99% | Yes |
| 1943 | 365 | 100% | Yes |
| 1944 | 366 | 100% | Yes |
| 1945 | 363 | 99% | Yes |
| 1946 | 365 | 100% | Yes |
| 1947 | 364 | 100% | Yes |
| 1948 | 330 | 90% | Yes |
| 1949 | 363 | 99% | Yes |
| 1950 | 357 | 98% | Yes |
| 1951 | 360 | 99% | Yes |
| 1952 | 351 | 96% | Yes |
| 1953 | 355 | 97% | Yes |
| 1954 | 351 | 96% | Yes |
| 1955 | 363 | 99% | Yes |
| 1956 | 365 | 100% | Yes |
| 1957 | 358 | 98% | Yes |
| 1958 | 352 | 96% | Yes |
| 1959 | 362 | 99% | Yes |
| 1960 | 364 | 99% | Yes |
| 1961 | 356 | 98% | Yes |
| 1962 | 364 | 100% | Yes |
| 1963 | 335 | 92% | Yes |
| 1964 | 366 | 100% | Yes |
| 1965 | 361 | 99% | Yes |
| 1966 | 360 | 99% | Yes |
| 1967 | 365 | 100% | Yes |
| 1968 | 365 | 100% | Yes |
| 1969 | 364 | 100% | Yes |
| 1970 | 365 | 100% | Yes |
| 1971 | 361 | 99% | Yes |
| 1972 | 359 | 98% | Yes |
| 1973 | 332 | 91% | Yes |
| 1974 | 364 | 100% | Yes |
| 1975 | 365 | 100% | Yes |
| 1976 | 345 | 94% | Yes |
| 1977 | 362 | 99% | Yes |
| 1978 | 359 | 98% | Yes |
| 1979 | 347 | 95% | Yes |
| 1980 | 346 | 95% | Yes |
| 1981 | 364 | 100% | Yes |
| 1982 | 365 | 100% | Yes |
| 1983 | 364 | 100% | Yes |
| 1984 | 365 | 100% | Yes |
| 1985 | 365 | 100% | Yes |
| 1986 | 360 | 99% | Yes |
| 1987 | 360 | 99% | Yes |
| 1988 | 359 | 98% | Yes |
| 1989 | 363 | 99% | Yes |
| 1990 | 365 | 100% | Yes |
| 1991 | 364 | 100% | Yes |
| 1992 | 362 | 99% | Yes |
| 1993 | 360 | 99% | Yes |
| 1994 | 361 | 99% | Yes |
| 1995 | 360 | 99% | Yes |
| 1996 | 364 | 99% | Yes |
| 1997 | 360 | 99% | Yes |
| 1998 | 363 | 99% | Yes |
| 1999 | 363 | 99% | Yes |
| 2000 | 366 | 100% | Yes |
| 2001 | 358 | 98% | Yes |
| 2002 | 364 | 100% | Yes |
| 2003 | 346 | 95% | Yes |
| 2004 | 348 | 95% | Yes |
| 2005 | 350 | 96% | Yes |
| 2006 | 360 | 99% | Yes |
| 2007 | 350 | 96% | Yes |
| 2008 | 325 | 89% | No |
| 2009 | 263 | 72% | No |
| 2010 | 317 | 87% | No |
| 2011 | 277 | 76% | No |
| 2012 | 254 | 69% | No |
| 2014 | 305 | 84% | No |
| 2015 | 362 | 99% | Yes |
| 2016 | 327 | 89% | No |
| 2017 | 309 | 85% | No |
| 2018 | 324 | 89% | No |
| 2019 | 312 | 85% | No |
| 2020 | 293 | 80% | No |
| 2021 | 186 | 51% | No |
| 2022 | 198 | 54% | No |
| 2023 | 174 | 48% | No |
| 2024 | 118 | 32% | No |
| 2025 | 127 | 35% | No |
| 2026 | 108 | 30% | No |
Latest Records
20| Date | Station | Record | Value | Beat old record by | Old record stood | Significance |
|---|---|---|---|---|---|---|
| 10 August 2026 | Calaveras Big Trees, US | daily high min | 18.3 C (64.9 F) | 1.6 C (2.9 F) | 91 years | 41 of 100 (Notable) |
| 9 August 2026 | Calaveras Big Trees, US | daily high min | 18.9 C (66.0 F) | 0.6 C (1.1 F) | 48 years | 24 of 100 (Routine) |
| 3 August 2026 | Calaveras Big Trees, US | daily high min | 20.6 C (69.1 F) | 1.7 C (3.1 F) | 8 years | 16 of 100 (Routine) |
| 31 July 2026 | Calaveras Big Trees, US | daily high min | 20.6 C (69.1 F) | 2.3 C (4.1 F) | 8 years | 18 of 100 (Routine) |
| 28 July 2026 | Calaveras Big Trees, US | daily high min (Tie) | 17.8 C (64.0 F) | tie | 92 years | 9 of 100 (Routine) |
| 27 July 2026 | Calaveras Big Trees, US | daily high min (Tie) | 17.8 C (64.0 F) | tie | 95 years | 9 of 100 (Routine) |
| 26 July 2026 | Calaveras Big Trees, US | daily high min (Tie) | 17.8 C (64.0 F) | tie | 95 years | 9 of 100 (Routine) |
| 24 July 2026 | Calaveras Big Trees, US | daily high min | 20.0 C (68.0 F) | 1.1 C (2.0 F) | 37 years | 23 of 100 (Routine) |
| 21 July 2026 | Calaveras Big Trees, US | daily high min | 20.6 C (69.1 F) | 1.7 C (3.1 F) | 20 years | 20 of 100 (Routine) |
| 20 July 2026 | Calaveras Big Trees, US | daily high min | 19.4 C (66.9 F) | 1.6 C (2.9 F) | 1 year | 14 of 100 (Routine) |
| 19 July 2026 | Calaveras Big Trees, US | daily high min | 19.4 C (66.9 F) | 2.2 C (4.0 F) | 23 years | 22 of 100 (Routine) |
| 18 July 2026 | Calaveras Big Trees, US | daily high min | 18.9 C (66.0 F) | 1.1 C (2.0 F) | 20 years | 18 of 100 (Routine) |
| 17 July 2026 | Calaveras Big Trees, US | daily high min (Tie) | 17.8 C (64.0 F) | tie | 91 years | 9 of 100 (Routine) |
| 16 July 2026 | Calaveras Big Trees, US | daily high min | 18.9 C (66.0 F) | 1.7 C (3.1 F) | 36 years | 24 of 100 (Routine) |
| 15 July 2026 | Calaveras Big Trees, US | daily high min | 19.4 C (66.9 F) | 1.6 C (2.9 F) | 12 years | 17 of 100 (Routine) |
| 12 July 2026 | Calaveras Big Trees, US | daily high min (Tie) | 19.4 C (66.9 F) | tie | 24 years | 4 of 100 (Routine) |
| 11 July 2026 | Calaveras Big Trees, US | daily high min | 20.0 C (68.0 F) | 2.2 C (4.0 F) | 24 years | 23 of 100 (Routine) |
| 13 April 2026 | Calaveras Big Trees, US | daily low max (Tie) | 1.1 C (34.0 F) | tie | 53 years | 6 of 100 (Routine) |
| 12 April 2026 | Calaveras Big Trees, US | daily rain | 102.9 mm (4.1 in) | 14.0 mm (0.6 in) | 8 years | 19 of 100 (Routine) |
| 12 April 2026 | Calaveras Big Trees, US | daily low max (Tie) | 0.6 C (33.1 F) | tie | 28 years | 4 of 100 (Routine) |
Climate Trend
77 complete years, 1930 to 2018| Year | Annual mean temperature | Difference from the station mean |
|---|---|---|
| 1930 | 11.9 C | +1.75 C |
| 1931 | 13.0 C | +2.82 C |
| 1932 | 12.4 C | +2.22 C |
| 1933 | 12.2 C | +2.05 C |
| 1934 | 12.0 C | +1.85 C |
| 1936 | 11.1 C | +0.96 C |
| 1937 | 10.1 C | -0.04 C |
| 1938 | 10.0 C | -0.11 C |
| 1939 | 11.2 C | +1.06 C |
| 1940 | 11.4 C | +1.24 C |
| 1941 | 10.1 C | -0.05 C |
| 1942 | 10.5 C | +0.35 C |
| 1943 | 11.0 C | +0.82 C |
| 1944 | 10.0 C | -0.19 C |
| 1945 | 10.3 C | +0.11 C |
| 1946 | 10.2 C | +0.09 C |
| 1947 | 10.6 C | +0.49 C |
| 1949 | 9.7 C | -0.50 C |
| 1950 | 10.9 C | +0.73 C |
| 1951 | 10.2 C | +0.04 C |
| 1952 | 9.9 C | -0.21 C |
| 1953 | 10.0 C | -0.19 C |
| 1954 | 10.4 C | +0.25 C |
| 1955 | 9.3 C | -0.88 C |
| 1956 | 9.6 C | -0.53 C |
| 1957 | 9.6 C | -0.59 C |
| 1958 | 10.8 C | +0.61 C |
| 1959 | 11.3 C | +1.11 C |
| 1960 | 10.7 C | +0.51 C |
| 1961 | 10.7 C | +0.53 C |
| 1962 | 10.3 C | +0.13 C |
| 1964 | 9.4 C | -0.74 C |
| 1965 | 9.2 C | -0.93 C |
| 1966 | 9.7 C | -0.42 C |
| 1967 | 9.6 C | -0.56 C |
| 1968 | 9.6 C | -0.60 C |
| 1969 | 9.3 C | -0.88 C |
| 1970 | 9.7 C | -0.49 C |
| 1971 | 8.5 C | -1.70 C |
| 1972 | 9.5 C | -0.69 C |
| 1974 | 9.7 C | -0.41 C |
| 1975 | 9.2 C | -0.96 C |
| 1977 | 10.6 C | +0.45 C |
| 1978 | 9.8 C | -0.39 C |
| 1979 | 9.5 C | -0.66 C |
| 1980 | 9.8 C | -0.39 C |
| 1981 | 10.6 C | +0.41 C |
| 1982 | 8.6 C | -1.56 C |
| 1983 | 9.2 C | -0.91 C |
| 1984 | 9.9 C | -0.21 C |
| 1985 | 9.5 C | -0.63 C |
| 1986 | 10.4 C | +0.23 C |
| 1987 | 9.9 C | -0.22 C |
| 1988 | 10.5 C | +0.32 C |
| 1989 | 9.6 C | -0.51 C |
| 1990 | 9.6 C | -0.59 C |
| 1991 | 9.9 C | -0.23 C |
| 1992 | 10.4 C | +0.28 C |
| 1993 | 9.1 C | -1.08 C |
| 1994 | 9.4 C | -0.72 C |
| 1995 | 9.7 C | -0.50 C |
| 1996 | 10.1 C | -0.09 C |
| 1997 | 10.0 C | -0.16 C |
| 1998 | 8.1 C | -2.10 C |
| 1999 | 9.5 C | -0.63 C |
| 2000 | 9.6 C | -0.52 C |
| 2001 | 10.2 C | +0.05 C |
| 2002 | 9.9 C | -0.21 C |
| 2004 | 10.1 C | -0.08 C |
| 2005 | 9.6 C | -0.55 C |
| 2006 | 9.5 C | -0.64 C |
| 2007 | 10.1 C | -0.01 C |
| 2008 | 10.4 C | +0.20 C |
| 2015 | 11.7 C | +1.55 C |
| 2016 | 10.6 C | +0.42 C |
| 2017 | 11.0 C | +0.80 C |
| 2018 | 10.8 C | +0.66 C |
The annual mean temperature here has fallen by 0.1 C (0.1 to 0.2) per decade over 1930 to 2018. In Fahrenheit: 0.2 F (0.1 to 0.4) per decade. The slope is a straight line fitted to 77 complete years; the brackets give its 95 percent interval.
| Measure | Per decade (C) | Per decade (F) | Period | Complete years | Reading |
|---|---|---|---|---|---|
| Annual mean temperature | -0.1 C (-0.2 to -0.1) per decade | -0.2 F (-0.4 to -0.1) per decade | 1930 to 2018 | 77 | Fall |
| Mean daily maximum | -0.4 C (-0.5 to -0.3) per decade | -0.8 F (-1.0 to -0.6) per decade | 1930 to 2018 | 77 | Fall |
| Mean daily minimum | 0.1 C (0.1 to 0.2) per decade | 0.3 F (0.1 to 0.4) per decade | 1930 to 2018 | 77 | Rise |
A year is complete when all 12 months have at least 20 days of both daily maximum and daily minimum readings. The annual mean is the mean of the monthly means. The trend describes this one station over this period; it does not say what caused the change.
Extremes by Year
1929 to 2026| Measure | Record | Year of the record | Median year | Years with a value |
|---|---|---|---|---|
| Hottest day (TXx) | 41.7 C (107.1 F) | 1933 | 33.3 C (91.9 F) | 97 |
| Coldest night (TNn) | -17.8 C (0.0 F) | 1932 | -10.6 C (12.9 F) | 97 |
| Wettest day (Rx1day) | 205.7 mm (8.1 in) | 1963 | 101.1 mm (4.0 in) | 98 |
| Wettest five days (Rx5day) | 661.0 mm (26.0 in) | 1986 | 219.5 mm (8.6 in) | 97 |
| Longest dry spell (CDD) | 168 days | 2002 | 84 days | 98 |
Hottest day (TXx)
| Year | Hottest day (TXx) |
|---|---|
| 1929 | 27.8 C (82.0 F) |
| 1930 | 38.9 C (102.0 F) |
| 1931 | 41.1 C (106.0 F) |
| 1932 | 41.1 C (106.0 F) |
| 1933 | 41.7 C (107.1 F) |
| 1934 | 36.7 C (98.1 F) |
| 1935 | 34.4 C (93.9 F) |
| 1936 | 33.3 C (91.9 F) |
| 1937 | 36.1 C (97.0 F) |
| 1938 | 35.6 C (96.1 F) |
| 1939 | 35.6 C (96.1 F) |
| 1940 | 36.1 C (97.0 F) |
| 1941 | 35.6 C (96.1 F) |
| 1942 | 37.8 C (100.0 F) |
| 1943 | 36.7 C (98.1 F) |
| 1944 | 34.4 C (93.9 F) |
| 1945 | 36.1 C (97.0 F) |
| 1946 | 35.6 C (96.1 F) |
| 1947 | 33.3 C (91.9 F) |
| 1948 | 32.2 C (90.0 F) |
| 1949 | 33.3 C (91.9 F) |
| 1950 | 34.4 C (93.9 F) |
| 1951 | 33.3 C (91.9 F) |
| 1952 | 33.3 C (91.9 F) |
| 1953 | 32.2 C (90.0 F) |
| 1954 | 32.2 C (90.0 F) |
| 1955 | 35.6 C (96.1 F) |
| 1956 | 32.2 C (90.0 F) |
| 1957 | 33.3 C (91.9 F) |
| 1958 | 32.2 C (90.0 F) |
| 1959 | 36.7 C (98.1 F) |
| 1960 | 36.7 C (98.1 F) |
| 1961 | 37.2 C (99.0 F) |
| 1962 | 33.3 C (91.9 F) |
| 1963 | 31.7 C (89.1 F) |
| 1964 | 34.4 C (93.9 F) |
| 1965 | 31.1 C (88.0 F) |
| 1966 | 33.3 C (91.9 F) |
| 1967 | 34.4 C (93.9 F) |
| 1968 | 34.4 C (93.9 F) |
| 1969 | 33.9 C (93.0 F) |
| 1970 | 34.4 C (93.9 F) |
| 1971 | 35.6 C (96.1 F) |
| 1972 | 37.8 C (100.0 F) |
| 1973 | 33.3 C (91.9 F) |
| 1974 | 32.2 C (90.0 F) |
| 1975 | 35.6 C (96.1 F) |
| 1976 | 34.4 C (93.9 F) |
| 1977 | 36.1 C (97.0 F) |
| 1978 | 36.1 C (97.0 F) |
| 1979 | 35.0 C (95.0 F) |
| 1980 | 35.0 C (95.0 F) |
| 1981 | 36.7 C (98.1 F) |
| 1982 | 33.3 C (91.9 F) |
| 1983 | 33.3 C (91.9 F) |
| 1984 | 33.9 C (93.0 F) |
| 1985 | 32.8 C (91.0 F) |
| 1986 | 30.6 C (87.1 F) |
| 1987 | 34.4 C (93.9 F) |
| 1988 | 35.0 C (95.0 F) |
| 1989 | 33.9 C (93.0 F) |
| 1990 | 32.8 C (91.0 F) |
| 1991 | 33.3 C (91.9 F) |
| 1992 | 32.8 C (91.0 F) |
| 1993 | 31.1 C (88.0 F) |
| 1994 | 31.7 C (89.1 F) |
| 1995 | 31.7 C (89.1 F) |
| 1996 | 33.3 C (91.9 F) |
| 1997 | 33.9 C (93.0 F) |
| 1998 | 33.3 C (91.9 F) |
| 1999 | 30.6 C (87.1 F) |
| 2000 | 31.7 C (89.1 F) |
| 2001 | 32.2 C (90.0 F) |
| 2002 | 33.9 C (93.0 F) |
| 2003 | 31.7 C (89.1 F) |
| 2004 | 32.8 C (91.0 F) |
| 2005 | 32.2 C (90.0 F) |
| 2006 | 33.3 C (91.9 F) |
| 2007 | 33.9 C (93.0 F) |
| 2008 | 34.4 C (93.9 F) |
| 2009 | 32.2 C (90.0 F) |
| 2010 | 32.8 C (91.0 F) |
| 2011 | 28.9 C (84.0 F) |
| 2012 | 36.1 C (97.0 F) |
| 2013 | n/a |
| 2014 | 32.2 C (90.0 F) |
| 2015 | 32.8 C (91.0 F) |
| 2016 | 32.2 C (90.0 F) |
| 2017 | 32.8 C (91.0 F) |
| 2018 | 31.7 C (89.1 F) |
| 2019 | 30.0 C (86.0 F) |
| 2020 | 34.4 C (93.9 F) |
| 2021 | 35.6 C (96.1 F) |
| 2022 | 32.8 C (91.0 F) |
| 2023 | 34.4 C (93.9 F) |
| 2024 | 35.6 C (96.1 F) |
| 2025 | 31.1 C (88.0 F) |
| 2026 | 31.7 C (89.1 F) |
Coldest night (TNn)
| Year | Coldest night (TNn) |
|---|---|
| 1929 | -3.3 C (26.1 F) |
| 1930 | -16.7 C (1.9 F) |
| 1931 | -12.8 C (9.0 F) |
| 1932 | -17.8 C (0.0 F) |
| 1933 | -12.2 C (10.0 F) |
| 1934 | -7.8 C (18.0 F) |
| 1935 | -12.2 C (10.0 F) |
| 1936 | -10.0 C (14.0 F) |
| 1937 | -17.2 C (1.0 F) |
| 1938 | -10.0 C (14.0 F) |
| 1939 | -11.1 C (12.0 F) |
| 1940 | -9.4 C (15.1 F) |
| 1941 | -8.3 C (17.1 F) |
| 1942 | -8.9 C (16.0 F) |
| 1943 | -8.9 C (16.0 F) |
| 1944 | -7.8 C (18.0 F) |
| 1945 | -7.8 C (18.0 F) |
| 1946 | -8.9 C (16.0 F) |
| 1947 | -8.3 C (17.1 F) |
| 1948 | -11.1 C (12.0 F) |
| 1949 | -15.0 C (5.0 F) |
| 1950 | -15.6 C (3.9 F) |
| 1951 | -13.3 C (8.1 F) |
| 1952 | -12.2 C (10.0 F) |
| 1953 | -11.7 C (10.9 F) |
| 1954 | -8.3 C (17.1 F) |
| 1955 | -11.7 C (10.9 F) |
| 1956 | -12.2 C (10.0 F) |
| 1957 | -13.3 C (8.1 F) |
| 1958 | -11.1 C (12.0 F) |
| 1959 | -10.0 C (14.0 F) |
| 1960 | -11.7 C (10.9 F) |
| 1961 | -10.0 C (14.0 F) |
| 1962 | -16.1 C (3.0 F) |
| 1963 | -9.4 C (15.1 F) |
| 1964 | -10.0 C (14.0 F) |
| 1965 | -13.9 C (7.0 F) |
| 1966 | -11.7 C (10.9 F) |
| 1967 | -12.2 C (10.0 F) |
| 1968 | -14.4 C (6.1 F) |
| 1969 | -13.3 C (8.1 F) |
| 1970 | -11.1 C (12.0 F) |
| 1971 | -12.8 C (9.0 F) |
| 1972 | -17.8 C (0.0 F) |
| 1973 | -11.7 C (10.9 F) |
| 1974 | -12.2 C (10.0 F) |
| 1975 | -10.0 C (14.0 F) |
| 1976 | -10.6 C (12.9 F) |
| 1977 | -9.4 C (15.1 F) |
| 1978 | -11.1 C (12.0 F) |
| 1979 | -13.9 C (7.0 F) |
| 1980 | -7.2 C (19.0 F) |
| 1981 | -8.9 C (16.0 F) |
| 1982 | -11.7 C (10.9 F) |
| 1983 | -7.8 C (18.0 F) |
| 1984 | -10.6 C (12.9 F) |
| 1985 | -13.3 C (8.1 F) |
| 1986 | -6.1 C (21.0 F) |
| 1987 | -10.6 C (12.9 F) |
| 1988 | -11.7 C (10.9 F) |
| 1989 | -15.0 C (5.0 F) |
| 1990 | -16.1 C (3.0 F) |
| 1991 | -7.2 C (19.0 F) |
| 1992 | -10.0 C (14.0 F) |
| 1993 | -13.9 C (7.0 F) |
| 1994 | -9.4 C (15.1 F) |
| 1995 | -7.2 C (19.0 F) |
| 1996 | -10.0 C (14.0 F) |
| 1997 | -15.0 C (5.0 F) |
| 1998 | -12.8 C (9.0 F) |
| 1999 | -9.4 C (15.1 F) |
| 2000 | -8.3 C (17.1 F) |
| 2001 | -7.8 C (18.0 F) |
| 2002 | -11.1 C (12.0 F) |
| 2003 | -9.4 C (15.1 F) |
| 2004 | -11.1 C (12.0 F) |
| 2005 | -6.1 C (21.0 F) |
| 2006 | -10.0 C (14.0 F) |
| 2007 | -11.1 C (12.0 F) |
| 2008 | -9.4 C (15.1 F) |
| 2009 | -12.2 C (10.0 F) |
| 2010 | -10.6 C (12.9 F) |
| 2011 | -10.0 C (14.0 F) |
| 2012 | -10.0 C (14.0 F) |
| 2013 | n/a |
| 2014 | -6.1 C (21.0 F) |
| 2015 | -9.4 C (15.1 F) |
| 2016 | -9.4 C (15.1 F) |
| 2017 | -7.8 C (18.0 F) |
| 2018 | -11.1 C (12.0 F) |
| 2019 | -10.6 C (12.9 F) |
| 2020 | -6.1 C (21.0 F) |
| 2021 | -7.8 C (18.0 F) |
| 2022 | -10.0 C (14.0 F) |
| 2023 | -9.4 C (15.1 F) |
| 2024 | -9.4 C (15.1 F) |
| 2025 | -5.6 C (21.9 F) |
| 2026 | -4.4 C (24.1 F) |
Wettest day (Rx1day)
| Year | Wettest day (Rx1day) |
|---|---|
| 1929 | 72.1 mm (2.8 in) |
| 1930 | 99.3 mm (3.9 in) |
| 1931 | 108.0 mm (4.3 in) |
| 1932 | 76.2 mm (3.0 in) |
| 1933 | 124.0 mm (4.9 in) |
| 1934 | 66.0 mm (2.6 in) |
| 1935 | 74.4 mm (2.9 in) |
| 1936 | 141.0 mm (5.6 in) |
| 1937 | 202.2 mm (8.0 in) |
| 1938 | 98.8 mm (3.9 in) |
| 1939 | 57.9 mm (2.3 in) |
| 1940 | 77.5 mm (3.1 in) |
| 1941 | 75.7 mm (3.0 in) |
| 1942 | 86.4 mm (3.4 in) |
| 1943 | 127.0 mm (5.0 in) |
| 1944 | 103.6 mm (4.1 in) |
| 1945 | 133.4 mm (5.3 in) |
| 1946 | 156.5 mm (6.2 in) |
| 1947 | 73.9 mm (2.9 in) |
| 1948 | 81.0 mm (3.2 in) |
| 1949 | 84.1 mm (3.3 in) |
| 1950 | 170.2 mm (6.7 in) |
| 1951 | 108.7 mm (4.3 in) |
| 1952 | 117.6 mm (4.6 in) |
| 1953 | 79.5 mm (3.1 in) |
| 1954 | 85.1 mm (3.4 in) |
| 1955 | 160.5 mm (6.3 in) |
| 1956 | 61.7 mm (2.4 in) |
| 1957 | 116.1 mm (4.6 in) |
| 1958 | 98.3 mm (3.9 in) |
| 1959 | 113.5 mm (4.5 in) |
| 1960 | 90.7 mm (3.6 in) |
| 1961 | 50.3 mm (2.0 in) |
| 1962 | 114.3 mm (4.5 in) |
| 1963 | 205.7 mm (8.1 in) |
| 1964 | 160.5 mm (6.3 in) |
| 1965 | 86.4 mm (3.4 in) |
| 1966 | 78.5 mm (3.1 in) |
| 1967 | 96.0 mm (3.8 in) |
| 1968 | 90.4 mm (3.6 in) |
| 1969 | 150.6 mm (5.9 in) |
| 1970 | 90.2 mm (3.6 in) |
| 1971 | 71.4 mm (2.8 in) |
| 1972 | 52.3 mm (2.1 in) |
| 1973 | 88.9 mm (3.5 in) |
| 1974 | 133.9 mm (5.3 in) |
| 1975 | 84.8 mm (3.3 in) |
| 1976 | 63.8 mm (2.5 in) |
| 1977 | 107.4 mm (4.2 in) |
| 1978 | 105.2 mm (4.1 in) |
| 1979 | 99.1 mm (3.9 in) |
| 1980 | 149.6 mm (5.9 in) |
| 1981 | 147.1 mm (5.8 in) |
| 1982 | 127.8 mm (5.0 in) |
| 1983 | 113.5 mm (4.5 in) |
| 1984 | 74.9 mm (2.9 in) |
| 1985 | 88.1 mm (3.5 in) |
| 1986 | 158.8 mm (6.3 in) |
| 1987 | 103.1 mm (4.1 in) |
| 1988 | 58.4 mm (2.3 in) |
| 1989 | 123.4 mm (4.9 in) |
| 1990 | 58.9 mm (2.3 in) |
| 1991 | 94.2 mm (3.7 in) |
| 1992 | 119.9 mm (4.7 in) |
| 1993 | 83.3 mm (3.3 in) |
| 1994 | 79.5 mm (3.1 in) |
| 1995 | 105.2 mm (4.1 in) |
| 1996 | 87.9 mm (3.5 in) |
| 1997 | 199.4 mm (7.9 in) |
| 1998 | 86.4 mm (3.4 in) |
| 1999 | 89.9 mm (3.5 in) |
| 2000 | 121.2 mm (4.8 in) |
| 2001 | 69.9 mm (2.8 in) |
| 2002 | 73.7 mm (2.9 in) |
| 2003 | 71.4 mm (2.8 in) |
| 2004 | 88.9 mm (3.5 in) |
| 2005 | 118.6 mm (4.7 in) |
| 2006 | 91.2 mm (3.6 in) |
| 2007 | 70.9 mm (2.8 in) |
| 2008 | 83.6 mm (3.3 in) |
| 2009 | 139.7 mm (5.5 in) |
| 2010 | 170.7 mm (6.7 in) |
| 2011 | 178.8 mm (7.0 in) |
| 2012 | 134.9 mm (5.3 in) |
| 2013 | 36.3 mm (1.4 in) |
| 2014 | 153.7 mm (6.1 in) |
| 2015 | 116.6 mm (4.6 in) |
| 2016 | 115.6 mm (4.6 in) |
| 2017 | 177.3 mm (7.0 in) |
| 2018 | 138.4 mm (5.4 in) |
| 2019 | 102.9 mm (4.1 in) |
| 2020 | 72.4 mm (2.9 in) |
| 2021 | 156.0 mm (6.1 in) |
| 2022 | 129.5 mm (5.1 in) |
| 2023 | 161.8 mm (6.4 in) |
| 2024 | 122.4 mm (4.8 in) |
| 2025 | 170.2 mm (6.7 in) |
| 2026 | 110.0 mm (4.3 in) |
Wettest five days (Rx5day)
| Year | Wettest five days (Rx5day) |
|---|---|
| 1929 | 160.5 mm (6.3 in) |
| 1930 | 201.0 mm (7.9 in) |
| 1931 | 282.0 mm (11.1 in) |
| 1932 | 170.2 mm (6.7 in) |
| 1933 | 217.4 mm (8.6 in) |
| 1934 | 135.9 mm (5.4 in) |
| 1935 | 165.4 mm (6.5 in) |
| 1936 | 297.2 mm (11.7 in) |
| 1937 | 371.8 mm (14.6 in) |
| 1938 | 267.7 mm (10.5 in) |
| 1939 | 131.6 mm (5.2 in) |
| 1940 | 223.1 mm (8.8 in) |
| 1941 | 184.8 mm (7.3 in) |
| 1942 | 245.2 mm (9.7 in) |
| 1943 | 426.7 mm (16.8 in) |
| 1944 | 211.3 mm (8.3 in) |
| 1945 | 314.2 mm (12.4 in) |
| 1946 | 304.3 mm (12.0 in) |
| 1947 | 102.3 mm (4.0 in) |
| 1948 | 193.0 mm (7.6 in) |
| 1949 | 149.9 mm (5.9 in) |
| 1950 | 419.4 mm (16.5 in) |
| 1951 | 238.5 mm (9.4 in) |
| 1952 | 290.6 mm (11.4 in) |
| 1953 | 130.6 mm (5.1 in) |
| 1954 | 159.7 mm (6.3 in) |
| 1955 | 518.0 mm (20.4 in) |
| 1956 | 163.0 mm (6.4 in) |
| 1957 | 174.4 mm (6.9 in) |
| 1958 | 259.7 mm (10.2 in) |
| 1959 | 216.4 mm (8.5 in) |
| 1960 | 226.1 mm (8.9 in) |
| 1961 | 149.1 mm (5.9 in) |
| 1962 | 311.6 mm (12.3 in) |
| 1963 | 504.0 mm (19.8 in) |
| 1964 | 442.9 mm (17.4 in) |
| 1965 | 228.9 mm (9.0 in) |
| 1966 | 264.4 mm (10.4 in) |
| 1967 | 241.1 mm (9.5 in) |
| 1968 | 155.7 mm (6.1 in) |
| 1969 | 475.4 mm (18.7 in) |
| 1970 | 232.4 mm (9.1 in) |
| 1971 | 196.5 mm (7.7 in) |
| 1972 | 94.3 mm (3.7 in) |
| 1973 | 152.7 mm (6.0 in) |
| 1974 | 248.9 mm (9.8 in) |
| 1975 | 181.9 mm (7.2 in) |
| 1976 | 110.3 mm (4.3 in) |
| 1977 | 163.3 mm (6.4 in) |
| 1978 | 251.5 mm (9.9 in) |
| 1979 | 219.5 mm (8.6 in) |
| 1980 | 408.0 mm (16.1 in) |
| 1981 | 265.7 mm (10.5 in) |
| 1982 | 282.5 mm (11.1 in) |
| 1983 | 263.5 mm (10.4 in) |
| 1984 | 133.0 mm (5.2 in) |
| 1985 | 147.8 mm (5.8 in) |
| 1986 | 661.0 mm (26.0 in) |
| 1987 | 158.3 mm (6.2 in) |
| 1988 | 141.3 mm (5.6 in) |
| 1989 | 229.7 mm (9.0 in) |
| 1990 | 107.4 mm (4.2 in) |
| 1991 | 220.0 mm (8.7 in) |
| 1992 | 297.7 mm (11.7 in) |
| 1993 | 181.0 mm (7.1 in) |
| 1994 | 151.1 mm (5.9 in) |
| 1995 | 258.6 mm (10.2 in) |
| 1996 | 228.8 mm (9.0 in) |
| 1997 | 359.8 mm (14.2 in) |
| 1998 | 238.9 mm (9.4 in) |
| 1999 | 226.7 mm (8.9 in) |
| 2000 | 250.1 mm (9.8 in) |
| 2001 | 172.0 mm (6.8 in) |
| 2002 | 237.5 mm (9.4 in) |
| 2003 | 146.3 mm (5.8 in) |
| 2004 | 215.1 mm (8.5 in) |
| 2005 | 232.9 mm (9.2 in) |
| 2006 | 272.0 mm (10.7 in) |
| 2007 | 193.1 mm (7.6 in) |
| 2008 | 155.7 mm (6.1 in) |
| 2009 | 174.2 mm (6.9 in) |
| 2010 | 223.3 mm (8.8 in) |
| 2011 | 146.3 mm (5.8 in) |
| 2012 | 218.0 mm (8.6 in) |
| 2013 | 38.0 mm (1.5 in) |
| 2014 | 256.8 mm (10.1 in) |
| 2015 | 214.1 mm (8.4 in) |
| 2016 | 207.5 mm (8.2 in) |
| 2017 | 331.5 mm (13.1 in) |
| 2018 | 138.2 mm (5.4 in) |
| 2019 | 238.7 mm (9.4 in) |
| 2020 | 158.5 mm (6.2 in) |
| 2021 | 279.2 mm (11.0 in) |
| 2022 | 277.3 mm (10.9 in) |
| 2023 | 204.0 mm (8.0 in) |
| 2024 | n/a |
| 2025 | 105.7 mm (4.2 in) |
| 2026 | 206.6 mm (8.1 in) |
Longest dry spell (CDD)
| Year | Longest dry spell (CDD) |
|---|---|
| 1929 | 68 days |
| 1930 | 86 days |
| 1931 | 70 days |
| 1932 | 111 days |
| 1933 | 112 days |
| 1934 | 100 days |
| 1935 | 124 days |
| 1936 | 100 days |
| 1937 | 97 days |
| 1938 | 62 days |
| 1939 | 97 days |
| 1940 | 79 days |
| 1941 | 110 days |
| 1942 | 137 days |
| 1943 | 138 days |
| 1944 | 98 days |
| 1945 | 90 days |
| 1946 | 59 days |
| 1947 | 122 days |
| 1948 | 108 days |
| 1949 | 100 days |
| 1950 | 87 days |
| 1951 | 140 days |
| 1952 | 57 days |
| 1953 | 101 days |
| 1954 | 148 days |
| 1955 | 122 days |
| 1956 | 86 days |
| 1957 | 111 days |
| 1958 | 55 days |
| 1959 | 86 days |
| 1960 | 101 days |
| 1961 | 73 days |
| 1962 | 75 days |
| 1963 | 93 days |
| 1964 | 75 days |
| 1965 | 54 days |
| 1966 | 52 days |
| 1967 | 95 days |
| 1968 | 77 days |
| 1969 | 82 days |
| 1970 | 112 days |
| 1971 | 94 days |
| 1972 | 110 days |
| 1973 | 87 days |
| 1974 | 84 days |
| 1975 | 50 days |
| 1976 | 77 days |
| 1977 | 79 days |
| 1978 | 68 days |
| 1979 | 78 days |
| 1980 | 66 days |
| 1981 | 80 days |
| 1982 | 47 days |
| 1983 | 68 days |
| 1984 | 105 days |
| 1985 | 40 days |
| 1986 | 76 days |
| 1987 | 153 days |
| 1988 | 129 days |
| 1989 | 75 days |
| 1990 | 46 days |
| 1991 | 48 days |
| 1992 | 66 days |
| 1993 | 86 days |
| 1994 | 127 days |
| 1995 | 160 days |
| 1996 | 78 days |
| 1997 | 56 days |
| 1998 | 84 days |
| 1999 | 67 days |
| 2000 | 83 days |
| 2001 | 79 days |
| 2002 | 168 days |
| 2003 | 65 days |
| 2004 | 141 days |
| 2005 | 94 days |
| 2006 | 131 days |
| 2007 | 86 days |
| 2008 | 127 days |
| 2009 | 70 days |
| 2010 | 99 days |
| 2011 | 62 days |
| 2012 | 1 day |
| 2013 | 47 days |
| 2014 | 47 days |
| 2015 | 73 days |
| 2016 | 76 days |
| 2017 | 99 days |
| 2018 | 101 days |
| 2019 | 82 days |
| 2020 | 87 days |
| 2021 | 21 days |
| 2022 | 51 days |
| 2023 | 10 days |
| 2024 | 4 days |
| 2025 | 17 days |
| 2026 | 88 days |
Each chart shows one value per year; the dot marks the record year. TXx is the hottest daily maximum, TNn the coldest daily minimum, Rx1day and Rx5day the largest one-day and five-day rain totals, and CDD the longest run of days with less than 1 mm of rain. A year with missing days can understate an extreme.
Frost Dates and Growing Season
77 years with a frostAcross 77 years with a frost, the median last spring frost at Calaveras Big Trees falls on 22 May and the median first autumn frost on 12 October, which leaves a median of 146 days between them.
In 1982 to 2018 the median growing season was 154 days. That is 8 days more than in 1930 to 1961.
Fitted over all years, the growing season changes by +2.1 days per decade at this station.
| Measure | Median, all years | Earliest period (1930 to 1961) | Recent period (1982 to 2018) | Recent against earliest | Fitted trend |
|---|---|---|---|---|---|
| Last spring frost | 22 May | 19 May | 19 May | no change | -0.7 days per decade |
| First autumn frost | 12 October | 14 October | 20 October | 6 days later | +1.4 days per decade |
| Growing days | 146 days | 146 days | 154 days | 8 days more | +2.1 days per decade |
A frost day is a day with a daily minimum at or below 0 C (32 F). The last spring frost and the first autumn frost are the last and first such days of the cold season, and growing days are the days between them. A negative trend for the last spring frost means it comes earlier.
Rainfall Return Levels
84 years, 1930 to 2019A day with at least 98.2 mm (3.9 in) of rain is expected about once in 2 years. A day with at least 227.5 mm (9.0 in) of rain is expected about once in 100 years.
| Expected about once in | A day with at least | Note |
|---|---|---|
| 2 years | 98.2 mm (3.9 in) | |
| 5 years | 129.9 mm (5.1 in) | |
| 10 years | 152.0 mm (6.0 in) | |
| 25 years | 181.3 mm (7.1 in) | |
| 50 years | 204.0 mm (8.0 in) | |
| 100 years | 227.5 mm (9.0 in) | Longer than the 84 years of record |
The levels come from a generalised extreme value (GEV) distribution fitted by L-moments to the wettest-day total of each year, 84 years of values from 1930 to 2019.
A return level is an estimate. It is least reliable for the long periods, 50 and 100 years, and for any period longer than the record behind the fit, where the fit has to reach past the largest day actually observed. It is not a forecast.
The largest wettest-day totals in the fit: 205.7 mm (8.1 in) in 1963; 202.2 mm (8.0 in) in 1937; 199.4 mm (7.9 in) in 1997.
Station Changes
2 suspected2 changes were suspected in the annual mean temperature of Calaveras Big Trees, at 1987 and 2007. Each is measured against neighbouring stations.
- Relative to 5 neighbouring stations, the station's annual mean temperature from 1987 ran 0.4 C (0.6 F) lower than in the years before (likely change).
- Relative to 5 neighbouring stations, the station's annual mean temperature from 2007 ran 0.3 C (0.5 F) higher than in the years before (likely change).
| Year | Shift (C) | Shift (F) | Strength | Neighbours |
|---|---|---|---|---|
| 1987 | -0.4 | -0.6 | likely | 5 |
| 2007 | +0.3 | +0.5 | likely | 5 |
Possible change at the station (a move, a new instrument or a new site); the record is kept as measured. A "likely" change has a larger test statistic than a "possible" one. Neither says why the station differs from its neighbours. How changes are found, and the largest ones.
Download the Data
Source: NOAA National Centers for Environmental Information, Global Historical Climatology Network Daily (GHCN-Daily). Records are computed by World Extreme Weather Monitor and are not official NOAA products. (US Government open data (NOAA NCEI)) Data as of 2026-10-17 (17 October 2026). Records are computed by this site and are not official.
Data as of . Last revised (2026-10-12).