Ibukiyama Mtn (Aut) Weather Records (JA000047751)
Record envelope, standing records and threshold days for Ibukiyama Mtn (Aut) (JA000047751), Japan, with 39 years of record.
Key Facts for Ibukiyama Mtn (Aut)
- Ibukiyama Mtn (Aut) (JA000047751) is a weather station in Japan at 35.42 latitude and 136.42 longitude, 1,377 m (4,518 ft) above sea level.
- The station reports from 1951 to 1989, 39 years of record.
- 1,464 records set at Ibukiyama Mtn (Aut) still stand.
- Records are tracked for tmax, tmin, prcp: an element needs 30 years of data to be eligible.
- Ibukiyama Mtn (Aut) set a daily record low minimum temperature of -9.4 C (15.1 F) on 19 December 1989.
About the Station
- Location: Japan, 35.42 latitude, 136.42 longitude.
- Elevation: 1,377 m (4,518 ft).
- Period of record: 1951 to 1989, 39 years.
- Eligible elements: tmax, tmin, prcp.
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 | 9.9 C (49.8 F) | -16.2 C (2.8 F) | n/a | n/a |
| Feb | 10.8 C (51.4 F) | -16.5 C (2.3 F) | n/a | n/a |
| Mar | 14.3 C (57.7 F) | -14.1 C (6.6 F) | n/a | n/a |
| Apr | 19.4 C (66.9 F) | -9.8 C (14.4 F) | n/a | n/a |
| May | 23.5 C (74.3 F) | -3.2 C (26.2 F) | n/a | n/a |
| Jun | 25.4 C (77.7 F) | 1.9 C (35.4 F) | n/a | n/a |
| Jul | 27.4 C (81.3 F) | 6.5 C (43.7 F) | n/a | n/a |
| Aug | 27.2 C (81.0 F) | 7.6 C (45.7 F) | n/a | n/a |
| Sep | 25.9 C (78.6 F) | 3.2 C (37.8 F) | n/a | n/a |
| Oct | 21.4 C (70.5 F) | -3.5 C (25.7 F) | n/a | n/a |
| Nov | 17.3 C (63.1 F) | -9.4 C (15.1 F) | n/a | n/a |
| Dec | 13.0 C (55.4 F) | -14.6 C (5.7 F) | n/a | n/a |
Which Years Hold Standing Records
1,464 standing records| Year set | Standing records |
|---|---|
| 1951 | 39 |
| 1952 | 24 |
| 1953 | 27 |
| 1954 | 39 |
| 1955 | 21 |
| 1956 | 45 |
| 1957 | 35 |
| 1958 | 45 |
| 1959 | 53 |
| 1960 | 35 |
| 1961 | 60 |
| 1962 | 20 |
| 1963 | 31 |
| 1964 | 42 |
| 1965 | 32 |
| 1966 | 48 |
| 1967 | 38 |
| 1968 | 40 |
| 1969 | 56 |
| 1970 | 45 |
| 1971 | 26 |
| 1972 | 32 |
| 1973 | 51 |
| 1974 | 18 |
| 1975 | 19 |
| 1976 | 43 |
| 1977 | 40 |
| 1978 | 32 |
| 1979 | 36 |
| 1980 | 57 |
| 1981 | 46 |
| 1982 | 35 |
| 1983 | 41 |
| 1984 | 42 |
| 1985 | 36 |
| 1986 | 24 |
| 1987 | 54 |
| 1988 | 28 |
| 1989 | 29 |
All-Time Record Progression
1 new records| Date | Kind | Detail |
|---|---|---|
| 1981-02-26 | Record low minimum temperature | Record low minimum temperature -16.5 C (2.3 F) |
Wettest Day of Each Month
Aug: 232.5 mm (9.2 in)| Month | Record daily precipitation (mm) | Date |
|---|---|---|
| Jan | 46.0 mm (1.8 in) | 31 January 1984 |
| Feb | 7.0 mm (0.28 in) | 3 February 1984 |
| Mar | 0.0 mm (0.00 in) | 9 March 1983 |
| Apr | 99.1 mm (3.9 in) | 22 April 1957 |
| May | 82.5 mm (3.2 in) | 20 May 1985 |
| Jun | 125.0 mm (4.9 in) | 9 June 1976 |
| Jul | 171.7 mm (6.8 in) | 23 July 1956 |
| Aug | 232.5 mm (9.2 in) | 12 August 1959 |
| Sep | 210.5 mm (8.3 in) | 6 September 1971 |
| Oct | 82.6 mm (3.3 in) | 6 October 1961 |
| Nov | 42.9 mm (1.7 in) | 3 November 1959 |
| Dec | 48.0 mm (1.9 in) | 22 December 1961 |
Period of Record Coverage
1951 to 1989| Year | Days with data | Share of year | Complete |
|---|---|---|---|
| 1951 | 365 | 100% | Yes |
| 1952 | 366 | 100% | Yes |
| 1953 | 350 | 96% | Yes |
| 1954 | 353 | 97% | Yes |
| 1955 | 351 | 96% | Yes |
| 1956 | 352 | 96% | Yes |
| 1957 | 354 | 97% | Yes |
| 1958 | 357 | 98% | Yes |
| 1959 | 349 | 96% | Yes |
| 1960 | 353 | 96% | Yes |
| 1961 | 352 | 96% | Yes |
| 1962 | 351 | 96% | Yes |
| 1963 | 355 | 97% | Yes |
| 1964 | 366 | 100% | Yes |
| 1965 | 365 | 100% | Yes |
| 1966 | 365 | 100% | Yes |
| 1967 | 365 | 100% | Yes |
| 1968 | 366 | 100% | Yes |
| 1969 | 365 | 100% | Yes |
| 1970 | 365 | 100% | Yes |
| 1971 | 365 | 100% | Yes |
| 1972 | 366 | 100% | Yes |
| 1973 | 365 | 100% | Yes |
| 1974 | 365 | 100% | Yes |
| 1975 | 365 | 100% | Yes |
| 1976 | 366 | 100% | Yes |
| 1977 | 365 | 100% | Yes |
| 1978 | 365 | 100% | Yes |
| 1979 | 365 | 100% | Yes |
| 1980 | 366 | 100% | Yes |
| 1981 | 365 | 100% | Yes |
| 1982 | 365 | 100% | Yes |
| 1983 | 365 | 100% | Yes |
| 1984 | 366 | 100% | Yes |
| 1985 | 365 | 100% | Yes |
| 1986 | 365 | 100% | Yes |
| 1987 | 365 | 100% | Yes |
| 1988 | 366 | 100% | Yes |
| 1989 | 357 | 98% | Yes |
Latest Records
20| Date | Station | Record | Value | Beat old record by | Old record stood | Significance |
|---|---|---|---|---|---|---|
| 19 December 1989 | Ibukiyama Mtn (Aut), JP | daily low min | -9.4 C (15.1 F) | 1.0 C (1.8 F) | 30 years | 14 of 100 (Routine) |
| 19 December 1989 | Ibukiyama Mtn (Aut), JP | daily low max | -6.5 C (20.3 F) | 1.1 C (2.0 F) | 4 years | 6 of 100 (Routine) |
| 13 November 1989 | Ibukiyama Mtn (Aut), JP | daily high min (Tie) | 5.6 C (42.1 F) | tie | 31 years | 3 of 100 (Routine) |
| 8 November 1989 | Ibukiyama Mtn (Aut), JP | daily high min | 10.6 C (51.1 F) | 0.4 C (0.7 F) | 24 years | 11 of 100 (Routine) |
| 4 November 1989 | Ibukiyama Mtn (Aut), JP | daily high max | 15.4 C (59.7 F) | 0.8 C (1.4 F) | 18 years | 9 of 100 (Routine) |
| 27 October 1989 | Ibukiyama Mtn (Aut), JP | monthly high max | 21.4 C (70.5 F) | 1.3 C (2.3 F) | 28 years | 24 of 100 (Routine) |
| 16 October 1989 | Ibukiyama Mtn (Aut), JP | daily rain | 24.5 mm (1.0 in) | 7.4 mm (0.29 in) | 28 years | 16 of 100 (Routine) |
| 9 October 1989 | Ibukiyama Mtn (Aut), JP | daily low min | 1.3 C (34.3 F) | 0.1 C (0.2 F) | 34 years | 13 of 100 (Routine) |
| 8 October 1989 | Ibukiyama Mtn (Aut), JP | daily low min | 1.4 C (34.5 F) | 1.2 C (2.2 F) | 34 years | 16 of 100 (Routine) |
| 8 October 1989 | Ibukiyama Mtn (Aut), JP | daily low max | 7.7 C (45.9 F) | 0.8 C (1.4 F) | 10 years | 8 of 100 (Routine) |
| 19 September 1989 | Ibukiyama Mtn (Aut), JP | daily rain | 71.5 mm (2.8 in) | 37.5 mm (1.5 in) | 7 years | 21 of 100 (Routine) |
| 18 September 1989 | Ibukiyama Mtn (Aut), JP | daily high min | 17.1 C (62.8 F) | 0.4 C (0.7 F) | 35 years | 14 of 100 (Routine) |
| 15 September 1989 | Ibukiyama Mtn (Aut), JP | daily high min | 16.9 C (62.4 F) | 0.3 C (0.5 F) | 36 years | 14 of 100 (Routine) |
| 14 September 1989 | Ibukiyama Mtn (Aut), JP | daily high min | 17.9 C (64.2 F) | 0.8 C (1.4 F) | 35 years | 15 of 100 (Routine) |
| 12 September 1989 | Ibukiyama Mtn (Aut), JP | daily high min | 16.8 C (62.2 F) | 0.6 C (1.1 F) | 36 years | 16 of 100 (Routine) |
| 10 September 1989 | Ibukiyama Mtn (Aut), JP | daily high max | 22.4 C (72.3 F) | 0.2 C (0.4 F) | 28 years | 11 of 100 (Routine) |
| 9 September 1989 | Ibukiyama Mtn (Aut), JP | daily high max | 22.3 C (72.1 F) | 0.6 C (1.1 F) | 2 years | 5 of 100 (Routine) |
| 7 September 1989 | Ibukiyama Mtn (Aut), JP | daily rain | 48.5 mm (1.9 in) | 6.2 mm (0.24 in) | 28 years | 13 of 100 (Routine) |
| 5 September 1989 | Ibukiyama Mtn (Aut), JP | daily rain | 39.5 mm (1.6 in) | 8.5 mm (0.33 in) | 16 years | 10 of 100 (Routine) |
| 3 September 1989 | Ibukiyama Mtn (Aut), JP | daily rain | 97.5 mm (3.8 in) | 66.5 mm (2.6 in) | 12 years | 34 of 100 (Routine) |
Climate Trend
39 complete years, 1951 to 1989| Year | Annual mean temperature | Difference from the station mean |
|---|---|---|
| 1951 | 6.1 C | -0.17 C |
| 1952 | 6.5 C | +0.20 C |
| 1953 | 6.4 C | +0.09 C |
| 1954 | 6.7 C | +0.42 C |
| 1955 | 7.1 C | +0.77 C |
| 1956 | 6.0 C | -0.27 C |
| 1957 | 6.1 C | -0.21 C |
| 1958 | 6.8 C | +0.52 C |
| 1959 | 7.6 C | +1.28 C |
| 1960 | 6.9 C | +0.65 C |
| 1961 | 7.1 C | +0.83 C |
| 1962 | 6.3 C | +0.06 C |
| 1963 | 6.0 C | -0.28 C |
| 1964 | 6.7 C | +0.44 C |
| 1965 | 5.5 C | -0.81 C |
| 1966 | 6.0 C | -0.30 C |
| 1967 | 6.3 C | +0.01 C |
| 1968 | 5.9 C | -0.35 C |
| 1969 | 6.1 C | -0.16 C |
| 1970 | 5.8 C | -0.46 C |
| 1971 | 5.8 C | -0.46 C |
| 1972 | 6.4 C | +0.15 C |
| 1973 | 6.1 C | -0.16 C |
| 1974 | 5.8 C | -0.51 C |
| 1975 | 6.3 C | 0.00 C |
| 1976 | 5.8 C | -0.49 C |
| 1977 | 6.7 C | +0.38 C |
| 1978 | 6.6 C | +0.27 C |
| 1979 | 7.1 C | +0.81 C |
| 1980 | 5.7 C | -0.58 C |
| 1981 | 5.5 C | -0.82 C |
| 1982 | 6.2 C | -0.11 C |
| 1983 | 6.2 C | -0.04 C |
| 1984 | 5.5 C | -0.77 C |
| 1985 | 6.4 C | +0.14 C |
| 1986 | 5.7 C | -0.63 C |
| 1987 | 6.8 C | +0.56 C |
| 1988 | 5.7 C | -0.57 C |
| 1989 | 6.9 C | +0.66 C |
The fitted trend in annual mean temperature here over 1951 to 1989 is -0.12 C (-0.27 to 0.02) per decade. The interval includes zero, so the trend is not clearly different from zero. In Fahrenheit: -0.22 F (-0.48 to 0.04) per decade. The slope is a straight line fitted to 39 complete years; the brackets give its 95 percent interval.
| Measure | Per decade (C) | Per decade (F) | Period | Complete years | Reading |
|---|---|---|---|---|---|
| Annual mean temperature | -0.12 C (-0.27 to 0.02) per decade | -0.22 F (-0.48 to 0.04) per decade | 1951 to 1989 | 39 | Not clearly different from zero |
| Mean daily maximum | -0.16 C (-0.32 to 0.01) per decade | -0.28 F (-0.58 to 0.01) per decade | 1951 to 1989 | 39 | Not clearly different from zero |
| Mean daily minimum | -0.09 C (-0.22 to 0.05) per decade | -0.2 F (-0.4 to 0.1) per decade | 1951 to 1989 | 39 | 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
1951 to 1989| Measure | Record | Year of the record | Median year | Years with a value |
|---|---|---|---|---|
| Hottest day (TXx) | 27.4 C (81.3 F) | 1951 | 25.2 C (77.4 F) | 39 |
| Coldest night (TNn) | -16.5 C (2.3 F) | 1981 | -13.5 C (7.7 F) | 39 |
| Wettest day (Rx1day) | 232.5 mm (9.2 in) | 1959 | 111.0 mm (4.4 in) | 39 |
| Wettest five days (Rx5day) | 462.4 mm (18.2 in) | 1959 | 221.0 mm (8.7 in) | 39 |
| Longest dry spell (CDD) | 73 days | 1989 | 11 days | 39 |
Hottest day (TXx)
| Year | Hottest day (TXx) |
|---|---|
| 1951 | 27.4 C (81.3 F) |
| 1952 | 25.8 C (78.4 F) |
| 1953 | 25.2 C (77.4 F) |
| 1954 | 24.8 C (76.6 F) |
| 1955 | 25.6 C (78.1 F) |
| 1956 | 25.5 C (77.9 F) |
| 1957 | 25.3 C (77.5 F) |
| 1958 | 24.2 C (75.6 F) |
| 1959 | 27.0 C (80.6 F) |
| 1960 | 25.4 C (77.7 F) |
| 1961 | 25.8 C (78.4 F) |
| 1962 | 24.7 C (76.5 F) |
| 1963 | 24.2 C (75.6 F) |
| 1964 | 25.0 C (77.0 F) |
| 1965 | 25.2 C (77.4 F) |
| 1966 | 25.1 C (77.2 F) |
| 1967 | 23.7 C (74.7 F) |
| 1968 | 24.9 C (76.8 F) |
| 1969 | 23.8 C (74.8 F) |
| 1970 | 25.4 C (77.7 F) |
| 1971 | 24.4 C (75.9 F) |
| 1972 | 25.7 C (78.3 F) |
| 1973 | 25.8 C (78.4 F) |
| 1974 | 24.2 C (75.6 F) |
| 1975 | 25.2 C (77.4 F) |
| 1976 | 23.4 C (74.1 F) |
| 1977 | 25.7 C (78.3 F) |
| 1978 | 25.2 C (77.4 F) |
| 1979 | 24.9 C (76.8 F) |
| 1980 | 23.5 C (74.3 F) |
| 1981 | 24.6 C (76.3 F) |
| 1982 | 24.4 C (75.9 F) |
| 1983 | 27.2 C (81.0 F) |
| 1984 | 25.6 C (78.1 F) |
| 1985 | 26.3 C (79.3 F) |
| 1986 | 26.3 C (79.3 F) |
| 1987 | 25.4 C (77.7 F) |
| 1988 | 25.3 C (77.5 F) |
| 1989 | 24.5 C (76.1 F) |
Coldest night (TNn)
| Year | Coldest night (TNn) |
|---|---|
| 1951 | -13.5 C (7.7 F) |
| 1952 | -12.8 C (9.0 F) |
| 1953 | -12.2 C (10.0 F) |
| 1954 | -13.4 C (7.9 F) |
| 1955 | -13.9 C (7.0 F) |
| 1956 | -14.4 C (6.1 F) |
| 1957 | -13.5 C (7.7 F) |
| 1958 | -13.5 C (7.7 F) |
| 1959 | -15.0 C (5.0 F) |
| 1960 | -14.6 C (5.7 F) |
| 1961 | -14.7 C (5.5 F) |
| 1962 | -11.3 C (11.7 F) |
| 1963 | -16.2 C (2.8 F) |
| 1964 | -12.2 C (10.0 F) |
| 1965 | -14.6 C (5.7 F) |
| 1966 | -14.2 C (6.4 F) |
| 1967 | -16.1 C (3.0 F) |
| 1968 | -15.2 C (4.6 F) |
| 1969 | -13.6 C (7.5 F) |
| 1970 | -13.6 C (7.5 F) |
| 1971 | -13.4 C (7.9 F) |
| 1972 | -10.9 C (12.4 F) |
| 1973 | -13.8 C (7.2 F) |
| 1974 | -13.2 C (8.2 F) |
| 1975 | -13.6 C (7.5 F) |
| 1976 | -12.9 C (8.8 F) |
| 1977 | -16.1 C (3.0 F) |
| 1978 | -13.5 C (7.7 F) |
| 1979 | -11.4 C (11.5 F) |
| 1980 | -12.9 C (8.8 F) |
| 1981 | -16.5 C (2.3 F) |
| 1982 | -13.2 C (8.2 F) |
| 1983 | -12.8 C (9.0 F) |
| 1984 | -14.8 C (5.4 F) |
| 1985 | -13.4 C (7.9 F) |
| 1986 | -14.3 C (6.3 F) |
| 1987 | -12.0 C (10.4 F) |
| 1988 | -12.5 C (9.5 F) |
| 1989 | -12.3 C (9.9 F) |
Wettest day (Rx1day)
| Year | Wettest day (Rx1day) |
|---|---|
| 1951 | 137.9 mm (5.4 in) |
| 1952 | 122.1 mm (4.8 in) |
| 1953 | 131.9 mm (5.2 in) |
| 1954 | 90.2 mm (3.6 in) |
| 1955 | 68.4 mm (2.7 in) |
| 1956 | 171.7 mm (6.8 in) |
| 1957 | 106.9 mm (4.2 in) |
| 1958 | 100.5 mm (4.0 in) |
| 1959 | 232.5 mm (9.2 in) |
| 1960 | 134.7 mm (5.3 in) |
| 1961 | 114.9 mm (4.5 in) |
| 1962 | 122.1 mm (4.8 in) |
| 1963 | 90.1 mm (3.5 in) |
| 1964 | 161.4 mm (6.4 in) |
| 1965 | 193.9 mm (7.6 in) |
| 1966 | 65.6 mm (2.6 in) |
| 1967 | 138.5 mm (5.5 in) |
| 1968 | 129.5 mm (5.1 in) |
| 1969 | 102.0 mm (4.0 in) |
| 1970 | 115.0 mm (4.5 in) |
| 1971 | 210.5 mm (8.3 in) |
| 1972 | 146.5 mm (5.8 in) |
| 1973 | 71.0 mm (2.8 in) |
| 1974 | 108.5 mm (4.3 in) |
| 1975 | 114.0 mm (4.5 in) |
| 1976 | 125.0 mm (4.9 in) |
| 1977 | 54.0 mm (2.1 in) |
| 1978 | 55.5 mm (2.2 in) |
| 1979 | 111.0 mm (4.4 in) |
| 1980 | 74.5 mm (2.9 in) |
| 1981 | 75.5 mm (3.0 in) |
| 1982 | 123.5 mm (4.9 in) |
| 1983 | 106.5 mm (4.2 in) |
| 1984 | 101.5 mm (4.0 in) |
| 1985 | 92.5 mm (3.6 in) |
| 1986 | 94.5 mm (3.7 in) |
| 1987 | 87.0 mm (3.4 in) |
| 1988 | 80.0 mm (3.1 in) |
| 1989 | 153.0 mm (6.0 in) |
Wettest five days (Rx5day)
| Year | Wettest five days (Rx5day) |
|---|---|
| 1951 | 281.6 mm (11.1 in) |
| 1952 | 300.1 mm (11.8 in) |
| 1953 | 304.1 mm (12.0 in) |
| 1954 | 155.1 mm (6.1 in) |
| 1955 | 216.1 mm (8.5 in) |
| 1956 | 201.9 mm (7.9 in) |
| 1957 | 252.1 mm (9.9 in) |
| 1958 | 156.1 mm (6.1 in) |
| 1959 | 462.4 mm (18.2 in) |
| 1960 | 324.2 mm (12.8 in) |
| 1961 | 315.3 mm (12.4 in) |
| 1962 | 287.2 mm (11.3 in) |
| 1963 | 192.9 mm (7.6 in) |
| 1964 | 286.5 mm (11.3 in) |
| 1965 | 443.2 mm (17.4 in) |
| 1966 | 146.0 mm (5.7 in) |
| 1967 | 193.5 mm (7.6 in) |
| 1968 | 245.0 mm (9.6 in) |
| 1969 | 204.0 mm (8.0 in) |
| 1970 | 229.5 mm (9.0 in) |
| 1971 | 280.5 mm (11.0 in) |
| 1972 | 303.0 mm (11.9 in) |
| 1973 | 131.0 mm (5.2 in) |
| 1974 | 208.0 mm (8.2 in) |
| 1975 | 234.0 mm (9.2 in) |
| 1976 | 400.5 mm (15.8 in) |
| 1977 | 98.0 mm (3.9 in) |
| 1978 | 168.0 mm (6.6 in) |
| 1979 | 272.5 mm (10.7 in) |
| 1980 | 221.0 mm (8.7 in) |
| 1981 | 164.0 mm (6.5 in) |
| 1982 | 195.5 mm (7.7 in) |
| 1983 | 209.5 mm (8.2 in) |
| 1984 | 187.5 mm (7.4 in) |
| 1985 | 241.0 mm (9.5 in) |
| 1986 | 213.5 mm (8.4 in) |
| 1987 | 157.0 mm (6.2 in) |
| 1988 | 159.0 mm (6.3 in) |
| 1989 | 279.5 mm (11.0 in) |
Longest dry spell (CDD)
| Year | Longest dry spell (CDD) |
|---|---|
| 1951 | 16 days |
| 1952 | 8 days |
| 1953 | 13 days |
| 1954 | 12 days |
| 1955 | 24 days |
| 1956 | 11 days |
| 1957 | 9 days |
| 1958 | 9 days |
| 1959 | 12 days |
| 1960 | 13 days |
| 1961 | 8 days |
| 1962 | 8 days |
| 1963 | 10 days |
| 1964 | 15 days |
| 1965 | 11 days |
| 1966 | 11 days |
| 1967 | 14 days |
| 1968 | 9 days |
| 1969 | 8 days |
| 1970 | 8 days |
| 1971 | 9 days |
| 1972 | 10 days |
| 1973 | 17 days |
| 1974 | 11 days |
| 1975 | 12 days |
| 1976 | 7 days |
| 1977 | 22 days |
| 1978 | 8 days |
| 1979 | 11 days |
| 1980 | 9 days |
| 1981 | 14 days |
| 1982 | 9 days |
| 1983 | 25 days |
| 1984 | 19 days |
| 1985 | 14 days |
| 1986 | 11 days |
| 1987 | 14 days |
| 1988 | 10 days |
| 1989 | 73 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
39 years with a frostAcross 39 years with a frost, the median last spring frost at Ibukiyama Mtn (Aut) falls on 3 May and the median first autumn frost on 31 October, which leaves a median of 180 days between them.
Fitted over all years, the growing season changes by -2.9 days per decade at this station.
| Measure | Median, all years | Earliest period | Recent period (1960 to 1989) | Recent against earliest | Fitted trend |
|---|---|---|---|---|---|
| Last spring frost | 3 May | n/a | 5 May | n/a | +1.0 days per decade |
| First autumn frost | 31 October | n/a | 1 November | n/a | -1.9 days per decade |
| Growing days | 180 days | n/a | 181 days | n/a | -2.9 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.
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).