Warren Weather Records (USC00109560)
Record envelope, standing records and threshold days for Warren (USC00109560), Idaho, United States, with 117 years of record.
Key Facts for Warren
- Warren (USC00109560) is a weather station in Idaho, United States at 45.27 latitude and -115.68 longitude, 1,801 m (5,907 ft) above sea level.
- The station reports from 1895 to 2011, 117 years of record.
- 1,464 records set at Warren still stand.
- Records are tracked for tmax, tmin, prcp, snow, snwd: an element needs 30 years of data to be eligible.
- Warren tied a daily record low minimum temperature of -12.2 C (10.0 F) on 26 October 2011.
About the Station
- Location: Idaho, United States, 45.27 latitude, -115.68 longitude.
- Elevation: 1,801 m (5,907 ft).
- Period of record: 1895 to 2011, 117 years.
- Eligible elements: tmax, tmin, prcp, snow, snwd.
Daily Record Envelope and 2026
0 days at or beyond a record| Month | Highest record high | Lowest record low | 2026 highest maximum | 2026 lowest minimum |
|---|---|---|---|---|
| Jan | 14.4 C (57.9 F) | -42.2 C (-44.0 F) | n/a | n/a |
| Feb | 16.7 C (62.1 F) | -44.4 C (-47.9 F) | n/a | n/a |
| Mar | 21.1 C (70.0 F) | -35.0 C (-31.0 F) | n/a | n/a |
| Apr | 26.7 C (80.1 F) | -23.9 C (-11.0 F) | n/a | n/a |
| May | 32.2 C (90.0 F) | -16.7 C (1.9 F) | n/a | n/a |
| Jun | 33.3 C (91.9 F) | -8.3 C (17.1 F) | n/a | n/a |
| Jul | 36.7 C (98.1 F) | -7.2 C (19.0 F) | n/a | n/a |
| Aug | 37.8 C (100.0 F) | -10.0 C (14.0 F) | n/a | n/a |
| Sep | 32.2 C (90.0 F) | -15.0 C (5.0 F) | n/a | n/a |
| Oct | 27.8 C (82.0 F) | -24.4 C (-11.9 F) | n/a | n/a |
| Nov | 20.6 C (69.1 F) | -38.9 C (-38.0 F) | n/a | n/a |
| Dec | 12.8 C (55.0 F) | -42.8 C (-45.0 F) | n/a | n/a |
Which Years Hold Standing Records
1,464 standing records| Year set | Standing records |
|---|---|
| 1895 | 45 |
| 1896 | 61 |
| 1897 | 68 |
| 1898 | 43 |
| 1922 | 12 |
| 1923 | 16 |
| 1924 | 29 |
| 1925 | 17 |
| 1926 | 24 |
| 1927 | 39 |
| 1928 | 40 |
| 1929 | 17 |
| 1930 | 1 |
| 1931 | 5 |
| 1932 | 11 |
| 1933 | 22 |
| 1934 | 5 |
| 1935 | 11 |
| 1936 | 9 |
| 1937 | 55 |
| 1938 | 16 |
| 1959 | 7 |
| 1960 | 22 |
| 1961 | 17 |
| 1962 | 37 |
| 1963 | 22 |
| 1964 | 28 |
| 1965 | 33 |
| 1966 | 21 |
| 1967 | 15 |
| 1968 | 12 |
| 1969 | 19 |
| 1970 | 25 |
| 1971 | 23 |
| 1972 | 24 |
| 1973 | 24 |
| 1974 | 16 |
| 1975 | 18 |
| 1976 | 16 |
| 1977 | 17 |
| 1978 | 24 |
| 1979 | 15 |
| 1980 | 15 |
| 1981 | 11 |
| 1982 | 13 |
| 1983 | 21 |
| 1984 | 23 |
| 1985 | 24 |
| 1986 | 16 |
| 1987 | 22 |
| 1988 | 22 |
| 1989 | 23 |
| 1990 | 14 |
| 1991 | 11 |
| 1992 | 19 |
| 1993 | 16 |
| 1994 | 14 |
| 1995 | 13 |
| 1996 | 16 |
| 1997 | 13 |
| 1998 | 18 |
| 1999 | 28 |
| 2000 | 20 |
| 2001 | 11 |
| 2002 | 10 |
| 2003 | 22 |
| 2004 | 9 |
| 2005 | 13 |
| 2006 | 10 |
| 2007 | 6 |
| 2008 | 8 |
| 2009 | 10 |
| 2010 | 5 |
| 2011 | 7 |
Wettest Day of Each Month
Dec: 130.0 mm (5.1 in)| Month | Record daily precipitation (mm) | Date |
|---|---|---|
| Jan | 75.2 mm (3.0 in) | 19 January 2011 |
| Feb | 47.0 mm (1.9 in) | 15 February 1972 |
| Mar | 47.0 mm (1.9 in) | 9 March 1967 |
| Apr | 33.3 mm (1.3 in) | 24 April 1996 |
| May | 38.1 mm (1.5 in) | 18 May 1996 |
| Jun | 42.9 mm (1.7 in) | 14 June 2006 |
| Jul | 56.9 mm (2.2 in) | 13 July 2007 |
| Aug | 48.3 mm (1.9 in) | 16 August 1995 |
| Sep | 33.0 mm (1.3 in) | 9 September 1998 |
| Oct | 62.2 mm (2.4 in) | 11 October 1962 |
| Nov | 54.9 mm (2.2 in) | 7 November 1980 |
| Dec | 130.0 mm (5.1 in) | 11 December 1929 |
Period of Record Coverage
1895 to 2011| Year | Days with data | Share of year | Complete |
|---|---|---|---|
| 1895 | 274 | 75% | No |
| 1896 | 363 | 99% | Yes |
| 1897 | 362 | 99% | Yes |
| 1898 | 334 | 92% | Yes |
| 1922 | 160 | 44% | No |
| 1923 | 359 | 98% | Yes |
| 1924 | 366 | 100% | Yes |
| 1925 | 363 | 99% | Yes |
| 1926 | 363 | 99% | Yes |
| 1927 | 300 | 82% | No |
| 1928 | 299 | 82% | No |
| 1929 | 174 | 48% | No |
| 1930 | 30 | 8% | No |
| 1931 | 158 | 43% | No |
| 1932 | 135 | 37% | No |
| 1933 | 263 | 72% | No |
| 1934 | 91 | 25% | No |
| 1935 | 84 | 23% | No |
| 1936 | 181 | 49% | No |
| 1937 | 301 | 82% | No |
| 1938 | 119 | 33% | No |
| 1959 | 99 | 27% | No |
| 1960 | 365 | 100% | Yes |
| 1961 | 364 | 100% | Yes |
| 1962 | 365 | 100% | Yes |
| 1963 | 365 | 100% | Yes |
| 1964 | 364 | 99% | Yes |
| 1965 | 363 | 99% | Yes |
| 1966 | 364 | 100% | Yes |
| 1967 | 365 | 100% | Yes |
| 1968 | 358 | 98% | Yes |
| 1969 | 365 | 100% | Yes |
| 1970 | 364 | 100% | Yes |
| 1971 | 365 | 100% | Yes |
| 1972 | 365 | 100% | Yes |
| 1973 | 354 | 97% | Yes |
| 1974 | 364 | 100% | Yes |
| 1975 | 359 | 98% | Yes |
| 1976 | 366 | 100% | Yes |
| 1977 | 364 | 100% | Yes |
| 1978 | 363 | 99% | Yes |
| 1979 | 364 | 100% | Yes |
| 1980 | 364 | 99% | Yes |
| 1981 | 352 | 96% | Yes |
| 1982 | 358 | 98% | Yes |
| 1983 | 352 | 96% | Yes |
| 1984 | 315 | 86% | No |
| 1985 | 316 | 87% | No |
| 1986 | 304 | 83% | No |
| 1987 | 292 | 80% | No |
| 1988 | 295 | 81% | No |
| 1989 | 298 | 82% | No |
| 1990 | 314 | 86% | No |
| 1991 | 319 | 87% | No |
| 1992 | 315 | 86% | No |
| 1993 | 312 | 85% | No |
| 1994 | 295 | 81% | No |
| 1995 | 298 | 82% | No |
| 1996 | 308 | 84% | No |
| 1997 | 292 | 80% | No |
| 1998 | 291 | 80% | No |
| 1999 | 294 | 81% | No |
| 2000 | 292 | 80% | No |
| 2001 | 286 | 78% | No |
| 2002 | 245 | 67% | No |
| 2003 | 245 | 67% | No |
| 2004 | 243 | 66% | No |
| 2005 | 244 | 67% | No |
| 2006 | 218 | 60% | No |
| 2007 | 172 | 47% | No |
| 2008 | 151 | 41% | No |
| 2009 | 180 | 49% | No |
| 2010 | 148 | 41% | No |
| 2011 | 168 | 46% | No |
Latest Records
20| Date | Station | Record | Value | Beat old record by | Old record stood | Significance |
|---|---|---|---|---|---|---|
| 26 October 2011 | Warren, US | daily low min (Tie) | -12.2 C (10.0 F) | tie | 40 years | 5 of 100 (Routine) |
| 4 October 2011 | Warren, US | daily high min | 6.1 C (43.0 F) | 0.5 C (0.9 F) | 36 years | 21 of 100 (Routine) |
| 2 October 2011 | Warren, US | daily high max | 26.7 C (80.1 F) | 0.6 C (1.1 F) | 18 years | 15 of 100 (Routine) |
| 26 September 2011 | Warren, US | daily high max | 27.8 C (82.0 F) | 0.6 C (1.1 F) | 48 years | 25 of 100 (Routine) |
| 11 September 2011 | Warren, US | daily high max | 28.9 C (84.0 F) | 0.6 C (1.1 F) | 13 years | 15 of 100 (Routine) |
| 10 September 2011 | Warren, US | daily high max (Tie) | 28.9 C (84.0 F) | tie | 112 years | 10 of 100 (Routine) |
| 16 June 2011 | Warren, US | daily snowfall | 5.1 cm (2.0 in) | 5.1 cm (2.0 in) | 115 years | 50 of 100 (Notable) |
| 16 June 2011 | Warren, US | daily snow depth | 5.1 cm (2.0 in) | 5.1 cm (2.0 in) | 50 years | 20 of 100 (Routine) |
| 8 June 2011 | Warren, US | daily rain | 25.4 mm (1.0 in) | 2.8 mm (0.11 in) | 24 years | 21 of 100 (Routine) |
| 3 June 2011 | Warren, US | daily low max | 7.2 C (45.0 F) | 0.6 C (1.1 F) | 112 years | 41 of 100 (Notable) |
| 25 April 2011 | Warren, US | daily low min | -16.7 C (1.9 F) | 3.4 C (6.1 F) | 86 years | 43 of 100 (Notable) |
| 28 February 2011 | Warren, US | daily low min | -32.2 C (-26.0 F) | 2.2 C (4.0 F) | 51 years | 27 of 100 (Routine) |
| 16 February 2011 | Warren, US | daily snowfall (Tie) | 27.9 cm (11.0 in) | tie | 27 years | 4 of 100 (Routine) |
| 19 January 2011 | Warren, US | monthly rain | 75.2 mm (3.0 in) | 19.1 mm (0.8 in) | 37 years | 59 of 100 (Notable) |
| 10 January 2011 | Warren, US | daily high max (Tie) | 8.9 C (48.0 F) | tie | 83 years | 8 of 100 (Routine) |
| 24 November 2010 | Warren, US | daily low min | -32.2 C (-26.0 F) | 5.5 C (9.9 F) | 17 years | 24 of 100 (Routine) |
| 19 November 2010 | Warren, US | daily rain | 11.4 mm (0.4 in) | 0.7 mm (0.03 in) | 84 years | 20 of 100 (Routine) |
| 4 November 2010 | Warren, US | daily high max | 17.8 C (64.0 F) | 0.6 C (1.1 F) | 84 years | 36 of 100 (Notable) |
| 1 September 2010 | Warren, US | daily rain | 19.6 mm (0.8 in) | 3.9 mm (0.15 in) | 48 years | 20 of 100 (Routine) |
| 23 August 2010 | Warren, US | monthly low min (Tie) | -10.0 C (14.0 F) | tie | 26 years | 6 of 100 (Routine) |
Climate Trend
44 complete years, 1896 to 1999| Year | Annual mean temperature | Difference from the station mean |
|---|---|---|
| 1896 | 5.1 C | +2.06 C |
| 1897 | 5.0 C | +2.00 C |
| 1923 | 2.7 C | -0.32 C |
| 1924 | 2.6 C | -0.46 C |
| 1925 | 3.8 C | +0.73 C |
| 1926 | 3.6 C | +0.52 C |
| 1960 | 2.8 C | -0.24 C |
| 1961 | 3.3 C | +0.26 C |
| 1962 | 2.5 C | -0.53 C |
| 1963 | 3.0 C | -0.05 C |
| 1964 | 1.2 C | -1.81 C |
| 1965 | 1.3 C | -1.75 C |
| 1966 | 2.6 C | -0.44 C |
| 1967 | 3.0 C | +0.01 C |
| 1968 | 2.6 C | -0.45 C |
| 1969 | 3.0 C | -0.08 C |
| 1970 | 2.7 C | -0.35 C |
| 1971 | 2.4 C | -0.62 C |
| 1972 | 2.6 C | -0.47 C |
| 1973 | 3.2 C | +0.16 C |
| 1974 | 3.2 C | +0.12 C |
| 1975 | 2.3 C | -0.75 C |
| 1976 | 2.9 C | -0.10 C |
| 1977 | 3.0 C | -0.07 C |
| 1978 | 2.6 C | -0.43 C |
| 1979 | 2.8 C | -0.19 C |
| 1980 | 3.7 C | +0.62 C |
| 1981 | 3.8 C | +0.81 C |
| 1982 | 2.1 C | -0.98 C |
| 1983 | 3.2 C | +0.19 C |
| 1985 | 1.7 C | -1.37 C |
| 1986 | 3.9 C | +0.82 C |
| 1988 | 3.9 C | +0.84 C |
| 1989 | 3.4 C | +0.35 C |
| 1990 | 3.4 C | +0.37 C |
| 1991 | 3.3 C | +0.24 C |
| 1992 | 3.9 C | +0.91 C |
| 1993 | 2.5 C | -0.58 C |
| 1994 | 3.4 C | +0.37 C |
| 1995 | 3.6 C | +0.61 C |
| 1996 | 2.9 C | -0.13 C |
| 1997 | 3.1 C | +0.04 C |
| 1998 | 3.6 C | +0.55 C |
| 1999 | 2.7 C | -0.35 C |
The fitted trend in annual mean temperature here over 1896 to 1999 is -0.08 C (-0.18 to 0.01) per decade. The interval includes zero, so the trend is not clearly different from zero. In Fahrenheit: -0.15 F (-0.32 to 0.01) per decade. The slope is a straight line fitted to 44 complete years; the brackets give its 95 percent interval.
| Measure | Per decade (C) | Per decade (F) | Period | Complete years | Reading |
|---|---|---|---|---|---|
| Annual mean temperature | -0.08 C (-0.18 to 0.01) per decade | -0.15 F (-0.32 to 0.01) per decade | 1896 to 1999 | 44 | Not clearly different from zero |
| Mean daily maximum | -0.11 C (-0.21 to -0.01) per decade | -0.20 F (-0.38 to -0.02) per decade | 1896 to 1999 | 44 | Fall |
| Mean daily minimum | -0.1 C (-0.2 to 0.1) per decade | -0.1 F (-0.3 to 0.1) per decade | 1896 to 1999 | 44 | Not clearly different from zero |
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
1895 to 2011| Measure | Record | Year of the record | Median year | Years with a value |
|---|---|---|---|---|
| Hottest day (TXx) | 37.8 C (100.0 F) | 1897 | 32.2 C (90.0 F) | 74 |
| Coldest night (TNn) | -44.4 C (-47.9 F) | 1933 | -33.3 C (-27.9 F) | 74 |
| Wettest day (Rx1day) | 130.0 mm (5.1 in) | 1929 | 28.7 mm (1.1 in) | 73 |
| Wettest five days (Rx5day) | 150.3 mm (5.9 in) | 1929 | 47.1 mm (1.9 in) | 73 |
| Longest dry spell (CDD) | 72 days | 1969 | 25 days | 73 |
Hottest day (TXx)
| Year | Hottest day (TXx) |
|---|---|
| 1895 | 32.2 C (90.0 F) |
| 1896 | 35.6 C (96.1 F) |
| 1897 | 37.8 C (100.0 F) |
| 1898 | 34.4 C (93.9 F) |
| 1922 | 30.6 C (87.1 F) |
| 1923 | 32.2 C (90.0 F) |
| 1924 | 33.3 C (91.9 F) |
| 1925 | 30.6 C (87.1 F) |
| 1926 | 31.7 C (89.1 F) |
| 1927 | 27.2 C (81.0 F) |
| 1928 | 30.0 C (86.0 F) |
| 1929 | 14.4 C (57.9 F) |
| 1930 | 4.4 C (39.9 F) |
| 1931 | 27.2 C (81.0 F) |
| 1932 | 32.2 C (90.0 F) |
| 1933 | 34.4 C (93.9 F) |
| 1934 | 35.0 C (95.0 F) |
| 1935 | 33.9 C (93.0 F) |
| 1936 | 33.9 C (93.0 F) |
| 1937 | 32.2 C (90.0 F) |
| 1938 | 21.7 C (71.1 F) |
| 1959 | 20.0 C (68.0 F) |
| 1960 | 33.9 C (93.0 F) |
| 1961 | 34.4 C (93.9 F) |
| 1962 | 30.0 C (86.0 F) |
| 1963 | 30.0 C (86.0 F) |
| 1964 | 30.6 C (87.1 F) |
| 1965 | 30.0 C (86.0 F) |
| 1966 | 32.2 C (90.0 F) |
| 1967 | 31.7 C (89.1 F) |
| 1968 | 31.1 C (88.0 F) |
| 1969 | 33.3 C (91.9 F) |
| 1970 | 32.2 C (90.0 F) |
| 1971 | 30.0 C (86.0 F) |
| 1972 | 30.6 C (87.1 F) |
| 1973 | 32.8 C (91.0 F) |
| 1974 | 30.6 C (87.1 F) |
| 1975 | 31.7 C (89.1 F) |
| 1976 | 31.1 C (88.0 F) |
| 1977 | 30.0 C (86.0 F) |
| 1978 | 30.6 C (87.1 F) |
| 1979 | 31.1 C (88.0 F) |
| 1980 | 32.8 C (91.0 F) |
| 1981 | 30.6 C (87.1 F) |
| 1982 | 30.0 C (86.0 F) |
| 1983 | 33.3 C (91.9 F) |
| 1984 | 34.4 C (93.9 F) |
| 1985 | 32.2 C (90.0 F) |
| 1986 | 32.2 C (90.0 F) |
| 1987 | 30.0 C (86.0 F) |
| 1988 | 32.2 C (90.0 F) |
| 1989 | 31.1 C (88.0 F) |
| 1990 | 32.8 C (91.0 F) |
| 1991 | 31.1 C (88.0 F) |
| 1992 | 32.2 C (90.0 F) |
| 1993 | 28.9 C (84.0 F) |
| 1994 | 31.7 C (89.1 F) |
| 1995 | 30.0 C (86.0 F) |
| 1996 | 31.7 C (89.1 F) |
| 1997 | 31.1 C (88.0 F) |
| 1998 | 36.1 C (97.0 F) |
| 1999 | 32.2 C (90.0 F) |
| 2000 | 33.3 C (91.9 F) |
| 2001 | 32.8 C (91.0 F) |
| 2002 | 36.7 C (98.1 F) |
| 2003 | 34.4 C (93.9 F) |
| 2004 | 32.2 C (90.0 F) |
| 2005 | 32.2 C (90.0 F) |
| 2006 | 34.4 C (93.9 F) |
| 2007 | 35.0 C (95.0 F) |
| 2008 | 33.3 C (91.9 F) |
| 2009 | 32.8 C (91.0 F) |
| 2010 | 32.2 C (90.0 F) |
| 2011 | 31.7 C (89.1 F) |
Coldest night (TNn)
| Year | Coldest night (TNn) |
|---|---|
| 1895 | -33.9 C (-29.0 F) |
| 1896 | -38.9 C (-38.0 F) |
| 1897 | -34.4 C (-29.9 F) |
| 1898 | -32.2 C (-26.0 F) |
| 1922 | -31.1 C (-24.0 F) |
| 1923 | -35.0 C (-31.0 F) |
| 1924 | -42.8 C (-45.0 F) |
| 1925 | -22.8 C (-9.0 F) |
| 1926 | -34.4 C (-29.9 F) |
| 1927 | -38.9 C (-38.0 F) |
| 1928 | -30.0 C (-22.0 F) |
| 1929 | -37.2 C (-35.0 F) |
| 1930 | -25.6 C (-14.1 F) |
| 1931 | -24.4 C (-11.9 F) |
| 1932 | -36.7 C (-34.1 F) |
| 1933 | -44.4 C (-47.9 F) |
| 1934 | -6.1 C (21.0 F) |
| 1935 | -7.2 C (19.0 F) |
| 1936 | -20.6 C (-5.1 F) |
| 1937 | -31.7 C (-25.1 F) |
| 1938 | -33.9 C (-29.0 F) |
| 1959 | -26.7 C (-16.1 F) |
| 1960 | -34.4 C (-29.9 F) |
| 1961 | -35.0 C (-31.0 F) |
| 1962 | -39.4 C (-38.9 F) |
| 1963 | -38.9 C (-38.0 F) |
| 1964 | -41.1 C (-42.0 F) |
| 1965 | -35.0 C (-31.0 F) |
| 1966 | -33.3 C (-27.9 F) |
| 1967 | -35.0 C (-31.0 F) |
| 1968 | -31.7 C (-25.1 F) |
| 1969 | -29.4 C (-20.9 F) |
| 1970 | -27.8 C (-18.0 F) |
| 1971 | -30.6 C (-23.1 F) |
| 1972 | -38.3 C (-36.9 F) |
| 1973 | -36.1 C (-33.0 F) |
| 1974 | -33.9 C (-29.0 F) |
| 1975 | -32.2 C (-26.0 F) |
| 1976 | -33.3 C (-27.9 F) |
| 1977 | -28.9 C (-20.0 F) |
| 1978 | -42.8 C (-45.0 F) |
| 1979 | -42.2 C (-44.0 F) |
| 1980 | -36.1 C (-33.0 F) |
| 1981 | -22.2 C (-8.0 F) |
| 1982 | -37.8 C (-36.0 F) |
| 1983 | -41.7 C (-43.1 F) |
| 1984 | -28.9 C (-20.0 F) |
| 1985 | -33.9 C (-29.0 F) |
| 1986 | -26.7 C (-16.1 F) |
| 1987 | -33.3 C (-27.9 F) |
| 1988 | -30.6 C (-23.1 F) |
| 1989 | -40.6 C (-41.1 F) |
| 1990 | -41.1 C (-42.0 F) |
| 1991 | -27.2 C (-17.0 F) |
| 1992 | -30.0 C (-22.0 F) |
| 1993 | -33.3 C (-27.9 F) |
| 1994 | -27.2 C (-17.0 F) |
| 1995 | -29.4 C (-20.9 F) |
| 1996 | -33.9 C (-29.0 F) |
| 1997 | -35.0 C (-31.0 F) |
| 1998 | -37.2 C (-35.0 F) |
| 1999 | -28.3 C (-18.9 F) |
| 2000 | -28.9 C (-20.0 F) |
| 2001 | -28.9 C (-20.0 F) |
| 2002 | -28.9 C (-20.0 F) |
| 2003 | -31.7 C (-25.1 F) |
| 2004 | -35.0 C (-31.0 F) |
| 2005 | -32.8 C (-27.0 F) |
| 2006 | -33.3 C (-27.9 F) |
| 2007 | -33.3 C (-27.9 F) |
| 2008 | -32.2 C (-26.0 F) |
| 2009 | -32.8 C (-27.0 F) |
| 2010 | -32.2 C (-26.0 F) |
| 2011 | -32.2 C (-26.0 F) |
Wettest day (Rx1day)
| Year | Wettest day (Rx1day) |
|---|---|
| 1895 | 40.6 mm (1.6 in) |
| 1896 | 35.6 mm (1.4 in) |
| 1897 | 17.8 mm (0.7 in) |
| 1898 | 12.7 mm (0.5 in) |
| 1922 | 30.5 mm (1.2 in) |
| 1923 | 34.3 mm (1.4 in) |
| 1924 | 38.1 mm (1.5 in) |
| 1925 | 16.0 mm (0.6 in) |
| 1926 | 23.1 mm (0.9 in) |
| 1927 | 27.2 mm (1.1 in) |
| 1928 | 20.3 mm (0.8 in) |
| 1929 | 130.0 mm (5.1 in) |
| 1930 | n/a |
| 1931 | 12.7 mm (0.5 in) |
| 1932 | 17.8 mm (0.7 in) |
| 1933 | 19.3 mm (0.8 in) |
| 1934 | 16.0 mm (0.6 in) |
| 1935 | 15.0 mm (0.6 in) |
| 1936 | 27.7 mm (1.1 in) |
| 1937 | 48.0 mm (1.9 in) |
| 1938 | 32.0 mm (1.3 in) |
| 1959 | 26.4 mm (1.0 in) |
| 1960 | 25.7 mm (1.0 in) |
| 1961 | 24.9 mm (1.0 in) |
| 1962 | 62.2 mm (2.4 in) |
| 1963 | 34.0 mm (1.3 in) |
| 1964 | 34.3 mm (1.4 in) |
| 1965 | 43.4 mm (1.7 in) |
| 1966 | 30.5 mm (1.2 in) |
| 1967 | 47.0 mm (1.9 in) |
| 1968 | 31.5 mm (1.2 in) |
| 1969 | 22.9 mm (0.9 in) |
| 1970 | 41.4 mm (1.6 in) |
| 1971 | 44.2 mm (1.7 in) |
| 1972 | 47.0 mm (1.9 in) |
| 1973 | 35.1 mm (1.4 in) |
| 1974 | 56.1 mm (2.2 in) |
| 1975 | 27.9 mm (1.1 in) |
| 1976 | 24.6 mm (1.0 in) |
| 1977 | 33.3 mm (1.3 in) |
| 1978 | 27.4 mm (1.1 in) |
| 1979 | 31.0 mm (1.2 in) |
| 1980 | 54.9 mm (2.2 in) |
| 1981 | 26.7 mm (1.1 in) |
| 1982 | 41.9 mm (1.6 in) |
| 1983 | 25.9 mm (1.0 in) |
| 1984 | 24.9 mm (1.0 in) |
| 1985 | 21.6 mm (0.9 in) |
| 1986 | 22.6 mm (0.9 in) |
| 1987 | 30.5 mm (1.2 in) |
| 1988 | 18.3 mm (0.7 in) |
| 1989 | 23.4 mm (0.9 in) |
| 1990 | 17.3 mm (0.7 in) |
| 1991 | 26.2 mm (1.0 in) |
| 1992 | 21.3 mm (0.8 in) |
| 1993 | 21.8 mm (0.9 in) |
| 1994 | 28.7 mm (1.1 in) |
| 1995 | 48.3 mm (1.9 in) |
| 1996 | 38.1 mm (1.5 in) |
| 1997 | 52.1 mm (2.1 in) |
| 1998 | 34.5 mm (1.4 in) |
| 1999 | 44.2 mm (1.7 in) |
| 2000 | 36.3 mm (1.4 in) |
| 2001 | 35.1 mm (1.4 in) |
| 2002 | 15.7 mm (0.6 in) |
| 2003 | 22.4 mm (0.9 in) |
| 2004 | 20.3 mm (0.8 in) |
| 2005 | 29.0 mm (1.1 in) |
| 2006 | 42.9 mm (1.7 in) |
| 2007 | 56.9 mm (2.2 in) |
| 2008 | 17.0 mm (0.7 in) |
| 2009 | 24.1 mm (0.9 in) |
| 2010 | 24.1 mm (0.9 in) |
| 2011 | 75.2 mm (3.0 in) |
Wettest five days (Rx5day)
| Year | Wettest five days (Rx5day) |
|---|---|
| 1895 | 53.3 mm (2.1 in) |
| 1896 | 75.9 mm (3.0 in) |
| 1897 | 35.6 mm (1.4 in) |
| 1898 | 23.3 mm (0.9 in) |
| 1922 | 46.5 mm (1.8 in) |
| 1923 | 50.8 mm (2.0 in) |
| 1924 | 77.5 mm (3.1 in) |
| 1925 | 41.9 mm (1.6 in) |
| 1926 | 31.0 mm (1.2 in) |
| 1927 | 60.3 mm (2.4 in) |
| 1928 | 43.8 mm (1.7 in) |
| 1929 | 150.3 mm (5.9 in) |
| 1930 | n/a |
| 1931 | 29.5 mm (1.2 in) |
| 1932 | 21.1 mm (0.8 in) |
| 1933 | 26.8 mm (1.1 in) |
| 1934 | 20.8 mm (0.8 in) |
| 1935 | 24.4 mm (1.0 in) |
| 1936 | 37.9 mm (1.5 in) |
| 1937 | 63.8 mm (2.5 in) |
| 1938 | 34.5 mm (1.4 in) |
| 1959 | 42.1 mm (1.7 in) |
| 1960 | 53.6 mm (2.1 in) |
| 1961 | 60.5 mm (2.4 in) |
| 1962 | 129.7 mm (5.1 in) |
| 1963 | 71.1 mm (2.8 in) |
| 1964 | 100.3 mm (3.9 in) |
| 1965 | 122.6 mm (4.8 in) |
| 1966 | 63.8 mm (2.5 in) |
| 1967 | 88.4 mm (3.5 in) |
| 1968 | 61.0 mm (2.4 in) |
| 1969 | 41.7 mm (1.6 in) |
| 1970 | 86.6 mm (3.4 in) |
| 1971 | 64.0 mm (2.5 in) |
| 1972 | 63.1 mm (2.5 in) |
| 1973 | 70.0 mm (2.8 in) |
| 1974 | 127.4 mm (5.0 in) |
| 1975 | 57.7 mm (2.3 in) |
| 1976 | 57.5 mm (2.3 in) |
| 1977 | 61.6 mm (2.4 in) |
| 1978 | 64.2 mm (2.5 in) |
| 1979 | 46.0 mm (1.8 in) |
| 1980 | 62.2 mm (2.4 in) |
| 1981 | 65.2 mm (2.6 in) |
| 1982 | 62.8 mm (2.5 in) |
| 1983 | 39.5 mm (1.6 in) |
| 1984 | 34.3 mm (1.4 in) |
| 1985 | 50.8 mm (2.0 in) |
| 1986 | 39.9 mm (1.6 in) |
| 1987 | 39.4 mm (1.6 in) |
| 1988 | 26.9 mm (1.1 in) |
| 1989 | 42.4 mm (1.7 in) |
| 1990 | 23.6 mm (0.9 in) |
| 1991 | 41.9 mm (1.6 in) |
| 1992 | 33.8 mm (1.3 in) |
| 1993 | 51.6 mm (2.0 in) |
| 1994 | 35.7 mm (1.4 in) |
| 1995 | 72.5 mm (2.9 in) |
| 1996 | 85.6 mm (3.4 in) |
| 1997 | 68.4 mm (2.7 in) |
| 1998 | 47.1 mm (1.9 in) |
| 1999 | 56.1 mm (2.2 in) |
| 2000 | 36.8 mm (1.4 in) |
| 2001 | 42.7 mm (1.7 in) |
| 2002 | 29.1 mm (1.1 in) |
| 2003 | 27.2 mm (1.1 in) |
| 2004 | 39.4 mm (1.6 in) |
| 2005 | 22.1 mm (0.9 in) |
| 2006 | 47.5 mm (1.9 in) |
| 2007 | 58.9 mm (2.3 in) |
| 2008 | 17.6 mm (0.7 in) |
| 2009 | 29.3 mm (1.2 in) |
| 2010 | 35.5 mm (1.4 in) |
| 2011 | 34.5 mm (1.4 in) |
Longest dry spell (CDD)
| Year | Longest dry spell (CDD) |
|---|---|
| 1895 | 29 days |
| 1896 | 26 days |
| 1897 | 22 days |
| 1898 | 34 days |
| 1922 | 25 days |
| 1923 | 22 days |
| 1924 | 29 days |
| 1925 | 18 days |
| 1926 | 37 days |
| 1927 | 13 days |
| 1928 | 20 days |
| 1929 | 12 days |
| 1930 | n/a |
| 1931 | 18 days |
| 1932 | 20 days |
| 1933 | 24 days |
| 1934 | 28 days |
| 1935 | 37 days |
| 1936 | 30 days |
| 1937 | 33 days |
| 1938 | 8 days |
| 1959 | 30 days |
| 1960 | 35 days |
| 1961 | 33 days |
| 1962 | 24 days |
| 1963 | 22 days |
| 1964 | 15 days |
| 1965 | 18 days |
| 1966 | 53 days |
| 1967 | 23 days |
| 1968 | 24 days |
| 1969 | 72 days |
| 1970 | 37 days |
| 1971 | 24 days |
| 1972 | 21 days |
| 1973 | 31 days |
| 1974 | 39 days |
| 1975 | 22 days |
| 1976 | 20 days |
| 1977 | 36 days |
| 1978 | 39 days |
| 1979 | 25 days |
| 1980 | 22 days |
| 1981 | 37 days |
| 1982 | 29 days |
| 1983 | 24 days |
| 1984 | 30 days |
| 1985 | 51 days |
| 1986 | 34 days |
| 1987 | 35 days |
| 1988 | 26 days |
| 1989 | 19 days |
| 1990 | 25 days |
| 1991 | 32 days |
| 1992 | 25 days |
| 1993 | 19 days |
| 1994 | 21 days |
| 1995 | 17 days |
| 1996 | 31 days |
| 1997 | 17 days |
| 1998 | 35 days |
| 1999 | 25 days |
| 2000 | 18 days |
| 2001 | 32 days |
| 2002 | 25 days |
| 2003 | 22 days |
| 2004 | 19 days |
| 2005 | 38 days |
| 2006 | 29 days |
| 2007 | 24 days |
| 2008 | 19 days |
| 2009 | 31 days |
| 2010 | 36 days |
| 2011 | 6 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
44 years with a frostAcross 44 years with a frost, the median last spring frost at Warren falls on 29 June and the median first autumn frost on 2 July, which leaves a median of 3 days between them.
Fitted over all years, the growing season changes by -2.8 days per decade at this station.
| Measure | Median, all years | Earliest period | Recent period (1968 to 1999) | Recent against earliest | Fitted trend |
|---|---|---|---|---|---|
| Last spring frost | 29 June | n/a | 30 June | n/a | +1.0 days per decade |
| First autumn frost | 2 July | n/a | 1 July | n/a | -1.8 days per decade |
| Growing days | 3 days | n/a | 3 days | n/a | -2.8 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
39 years, 1895 to 2001A day with at least 31.7 mm (1.2 in) of rain is expected about once in 2 years. A day with at least 66.4 mm (2.6 in) of rain is expected about once in 100 years.
| Expected about once in | A day with at least | Note |
|---|---|---|
| 2 years | 31.7 mm (1.2 in) | |
| 5 years | 42.0 mm (1.7 in) | |
| 10 years | 48.4 mm (1.9 in) | |
| 25 years | 56.1 mm (2.2 in) | |
| 50 years | 61.4 mm (2.4 in) | Longer than the 39 years of record |
| 100 years | 66.4 mm (2.6 in) | Longer than the 39 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, 39 years of values from 1895 to 2001.
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: 62.2 mm (2.4 in) in 1962; 56.1 mm (2.2 in) in 1974; 54.9 mm (2.2 in) in 1980.
Station Changes
2 suspected2 changes were suspected in the annual mean temperature of Warren, at 1971 and 1994. Each is measured against neighbouring stations.
- Relative to 5 neighbouring stations, the station's annual mean temperature from 1971 ran 0.3 C (0.5 F) higher than in the years before (possible change).
- Relative to 5 neighbouring stations, the station's annual mean temperature from 1994 ran 0.5 C (0.8 F) lower than in the years before (likely change).
| Year | Shift (C) | Shift (F) | Strength | Neighbours |
|---|---|---|---|---|
| 1971 | +0.3 | +0.5 | possible | 5 |
| 1994 | -0.5 | -0.8 | 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 (2025-12-31).