Bredviken Weather Records (SWE00138812)
Record envelope, standing records and threshold days for Bredviken (SWE00138812), Sweden, with 41 years of record.
Key Facts for Bredviken
- Bredviken (SWE00138812) is a weather station in Sweden at 59.22 latitude and 11.99 longitude, 100 m (328 ft) above sea level.
- The station reports from 1957 to 1997, 41 years of record.
- 1,464 records set at Bredviken still stand.
- Records are tracked for tmax, tmin, prcp: an element needs 30 years of data to be eligible.
- Bredviken tied a daily record high minimum temperature of 3.5 C (38.3 F) on 9 April 1997.
About the Station
- Location: Sweden, 59.22 latitude, 11.99 longitude.
- Elevation: 100 m (328 ft).
- Period of record: 1957 to 1997, 41 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 | 11.2 C (52.2 F) | -31.3 C (-24.3 F) | n/a | n/a |
| Feb | 10.0 C (50.0 F) | -38.3 C (-36.9 F) | n/a | n/a |
| Mar | 16.0 C (60.8 F) | -27.5 C (-17.5 F) | n/a | n/a |
| Apr | 26.5 C (79.7 F) | -15.3 C (4.5 F) | n/a | n/a |
| May | 27.0 C (80.6 F) | -4.6 C (23.7 F) | n/a | n/a |
| Jun | 31.0 C (87.8 F) | -1.5 C (29.3 F) | n/a | n/a |
| Jul | 31.5 C (88.7 F) | 3.5 C (38.3 F) | n/a | n/a |
| Aug | 33.2 C (91.8 F) | 0.2 C (32.4 F) | n/a | n/a |
| Sep | 25.8 C (78.4 F) | -3.6 C (25.5 F) | n/a | n/a |
| Oct | 22.1 C (71.8 F) | -10.8 C (12.6 F) | n/a | n/a |
| Nov | 15.1 C (59.2 F) | -17.5 C (0.5 F) | n/a | n/a |
| Dec | 10.6 C (51.1 F) | -27.2 C (-17.0 F) | n/a | n/a |
Which Years Hold Standing Records
1,464 standing records| Year set | Standing records |
|---|---|
| 1957 | 10 |
| 1958 | 39 |
| 1959 | 29 |
| 1960 | 24 |
| 1961 | 33 |
| 1962 | 29 |
| 1963 | 22 |
| 1964 | 38 |
| 1965 | 43 |
| 1966 | 44 |
| 1967 | 19 |
| 1968 | 57 |
| 1969 | 34 |
| 1970 | 35 |
| 1971 | 44 |
| 1972 | 20 |
| 1973 | 44 |
| 1974 | 32 |
| 1975 | 52 |
| 1976 | 33 |
| 1977 | 44 |
| 1978 | 54 |
| 1979 | 32 |
| 1980 | 41 |
| 1981 | 41 |
| 1982 | 34 |
| 1983 | 36 |
| 1984 | 28 |
| 1985 | 34 |
| 1986 | 37 |
| 1987 | 45 |
| 1988 | 26 |
| 1989 | 58 |
| 1990 | 61 |
| 1991 | 33 |
| 1992 | 37 |
| 1993 | 33 |
| 1994 | 33 |
| 1995 | 41 |
| 1996 | 23 |
| 1997 | 12 |
All-Time Record Progression
2 new records| Date | Kind | Detail |
|---|---|---|
| 1988-09-02 | Record daily precipitation | Record daily precipitation 59.0 mm (2.3 in) |
| 1994-08-06 | Record high minimum temperature | Record high minimum temperature 17.5 C (63.5 F) |
Wettest Day of Each Month
Sep: 59.0 mm (2.3 in)| Month | Record daily precipitation (mm) | Date |
|---|---|---|
| Jan | 28.8 mm (1.1 in) | 31 January 1990 |
| Feb | 21.6 mm (0.9 in) | 24 February 1990 |
| Mar | 30.9 mm (1.2 in) | 27 March 1967 |
| Apr | 27.7 mm (1.1 in) | 20 April 1988 |
| May | 27.9 mm (1.1 in) | 24 May 1963 |
| Jun | 50.6 mm (2.0 in) | 29 June 1981 |
| Jul | 49.2 mm (1.9 in) | 11 July 1976 |
| Aug | 47.0 mm (1.9 in) | 14 August 1990 |
| Sep | 59.0 mm (2.3 in) | 2 September 1988 |
| Oct | 37.4 mm (1.5 in) | 9 October 1964 |
| Nov | 32.6 mm (1.3 in) | 10 November 1961 |
| Dec | 26.1 mm (1.0 in) | 2 December 1975 |
Period of Record Coverage
1957 to 1997| Year | Days with data | Share of year | Complete |
|---|---|---|---|
| 1957 | 153 | 42% | No |
| 1958 | 346 | 95% | Yes |
| 1959 | 365 | 100% | Yes |
| 1960 | 366 | 100% | Yes |
| 1961 | 365 | 100% | Yes |
| 1962 | 365 | 100% | Yes |
| 1963 | 365 | 100% | 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 | 365 | 100% | Yes |
| 1990 | 365 | 100% | Yes |
| 1991 | 365 | 100% | Yes |
| 1992 | 366 | 100% | Yes |
| 1993 | 365 | 100% | Yes |
| 1994 | 365 | 100% | Yes |
| 1995 | 365 | 100% | Yes |
| 1996 | 366 | 100% | Yes |
| 1997 | 103 | 28% | No |
Latest Records
20| Date | Station | Record | Value | Beat old record by | Old record stood | Significance |
|---|---|---|---|---|---|---|
| 9 April 1997 | Bredviken, SE | daily high min (Tie) | 3.5 C (38.3 F) | tie | 8 years | 1 of 100 (Routine) |
| 31 March 1997 | Bredviken, SE | daily high min | 6.0 C (42.8 F) | 3.6 C (6.5 F) | 7 years | 11 of 100 (Routine) |
| 26 March 1997 | Bredviken, SE | daily rain | 16.7 mm (0.7 in) | 3.2 mm (0.13 in) | 28 years | 19 of 100 (Routine) |
| 13 March 1997 | Bredviken, SE | daily high max | 11.5 C (52.7 F) | 3.3 C (5.9 F) | 28 years | 20 of 100 (Routine) |
| 13 March 1997 | Bredviken, SE | daily high min | 3.0 C (37.4 F) | 1.4 C (2.5 F) | 12 years | 9 of 100 (Routine) |
| 11 March 1997 | Bredviken, SE | daily high max | 12.5 C (54.5 F) | 4.2 C (7.6 F) | 36 years | 25 of 100 (Routine) |
| 11 March 1997 | Bredviken, SE | daily high min | 2.8 C (37.0 F) | 0.4 C (0.7 F) | 30 years | 13 of 100 (Routine) |
| 6 March 1997 | Bredviken, SE | daily high min | 3.5 C (38.3 F) | 0.7 C (1.3 F) | 30 years | 14 of 100 (Routine) |
| 4 March 1997 | Bredviken, SE | daily high max | 10.0 C (50.0 F) | 0.3 C (0.5 F) | 30 years | 13 of 100 (Routine) |
| 3 March 1997 | Bredviken, SE | daily high min | 2.6 C (36.7 F) | 0.3 C (0.5 F) | 18 years | 9 of 100 (Routine) |
| 2 March 1997 | Bredviken, SE | daily high max | 6.5 C (43.7 F) | 0.1 C (0.2 F) | 15 years | 8 of 100 (Routine) |
| 2 March 1997 | Bredviken, SE | daily high min | 4.0 C (39.2 F) | 1.0 C (1.8 F) | 4 years | 6 of 100 (Routine) |
| 18 February 1997 | Bredviken, SE | daily rain | 16.2 mm (0.6 in) | 9.8 mm (0.39 in) | 18 years | 20 of 100 (Routine) |
| 9 February 1997 | Bredviken, SE | daily rain | 10.4 mm (0.4 in) | 4.1 mm (0.16 in) | 3 years | 13 of 100 (Routine) |
| 15 January 1997 | Bredviken, SE | daily high min | 4.0 C (39.2 F) | 2.5 C (4.5 F) | 5 years | 8 of 100 (Routine) |
| 3 January 1997 | Bredviken, SE | daily low max | -13.5 C (7.7 F) | 0.7 C (1.3 F) | 1 year | 5 of 100 (Routine) |
| 9 December 1996 | Bredviken, SE | daily high min (Tie) | 5.0 C (41.0 F) | tie | 32 years | 3 of 100 (Routine) |
| 16 November 1996 | Bredviken, SE | daily high min | 6.0 C (42.8 F) | 1.0 C (1.8 F) | 18 years | 11 of 100 (Routine) |
| 14 November 1996 | Bredviken, SE | daily low min (Tie) | -9.0 C (15.8 F) | tie | 31 years | 3 of 100 (Routine) |
| 4 November 1996 | Bredviken, SE | daily high min | 8.0 C (46.4 F) | 1.4 C (2.5 F) | 7 years | 9 of 100 (Routine) |
Climate Trend
38 complete years, 1959 to 1996| Year | Annual mean temperature | Difference from the station mean |
|---|---|---|
| 1959 | 6.3 C | +0.74 C |
| 1960 | 5.0 C | -0.60 C |
| 1961 | 6.4 C | +0.84 C |
| 1962 | 4.6 C | -0.97 C |
| 1963 | 4.3 C | -1.30 C |
| 1964 | 5.8 C | +0.27 C |
| 1965 | 4.6 C | -0.93 C |
| 1966 | 4.4 C | -1.20 C |
| 1967 | 6.0 C | +0.40 C |
| 1968 | 4.9 C | -0.67 C |
| 1969 | 5.0 C | -0.59 C |
| 1970 | 4.4 C | -1.22 C |
| 1971 | 6.2 C | +0.66 C |
| 1972 | 6.1 C | +0.50 C |
| 1973 | 6.1 C | +0.49 C |
| 1974 | 6.7 C | +1.15 C |
| 1975 | 7.4 C | +1.80 C |
| 1976 | 5.4 C | -0.20 C |
| 1977 | 5.2 C | -0.39 C |
| 1978 | 4.9 C | -0.63 C |
| 1979 | 4.2 C | -1.37 C |
| 1980 | 4.6 C | -0.96 C |
| 1981 | 4.6 C | -0.96 C |
| 1982 | 5.9 C | +0.29 C |
| 1983 | 6.5 C | +0.92 C |
| 1984 | 6.0 C | +0.42 C |
| 1985 | 3.6 C | -1.96 C |
| 1986 | 4.7 C | -0.84 C |
| 1987 | 3.9 C | -1.65 C |
| 1988 | 6.3 C | +0.70 C |
| 1989 | 7.6 C | +1.99 C |
| 1990 | 7.7 C | +2.08 C |
| 1991 | 6.5 C | +0.94 C |
| 1992 | 7.0 C | +1.46 C |
| 1993 | 5.7 C | +0.11 C |
| 1994 | 6.0 C | +0.45 C |
| 1995 | 6.2 C | +0.64 C |
| 1996 | 5.1 C | -0.46 C |
The fitted trend in annual mean temperature here over 1959 to 1996 is 0.2 C (-0.1 to 0.5) per decade. The interval includes zero, so the trend is not clearly different from zero. In Fahrenheit: 0.4 F (-0.1 to 1.0) per decade. The slope is a straight line fitted to 38 complete years; the brackets give its 95 percent interval.
| Measure | Per decade (C) | Per decade (F) | Period | Complete years | Reading |
|---|---|---|---|---|---|
| Annual mean temperature | 0.2 C (-0.1 to 0.5) per decade | 0.4 F (-0.1 to 1.0) per decade | 1959 to 1996 | 38 | Not clearly different from zero |
| Mean daily maximum | 0.1 C (-0.2 to 0.4) per decade | 0.2 F (-0.3 to 0.8) per decade | 1959 to 1996 | 38 | Not clearly different from zero |
| Mean daily minimum | 0.32 C (-0.02 to 0.65) per decade | 0.57 F (-0.03 to 1.16) per decade | 1959 to 1996 | 38 | 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
1957 to 1997| Measure | Record | Year of the record | Median year | Years with a value |
|---|---|---|---|---|
| Hottest day (TXx) | 33.2 C (91.8 F) | 1975 | 28.5 C (83.3 F) | 41 |
| Coldest night (TNn) | -38.3 C (-36.9 F) | 1966 | -25.0 C (-13.0 F) | 41 |
| Wettest day (Rx1day) | 59.0 mm (2.3 in) | 1988 | 30.9 mm (1.2 in) | 40 |
| Wettest five days (Rx5day) | 116.6 mm (4.6 in) | 1965 | 57.4 mm (2.3 in) | 40 |
| Longest dry spell (CDD) | 54 days | 1964 | 24 days | 40 |
Hottest day (TXx)
| Year | Hottest day (TXx) |
|---|---|
| 1957 | 26.8 C (80.2 F) |
| 1958 | 27.5 C (81.5 F) |
| 1959 | 29.5 C (85.1 F) |
| 1960 | 29.2 C (84.6 F) |
| 1961 | 26.7 C (80.1 F) |
| 1962 | 25.0 C (77.0 F) |
| 1963 | 27.6 C (81.7 F) |
| 1964 | 29.1 C (84.4 F) |
| 1965 | 25.8 C (78.4 F) |
| 1966 | 29.2 C (84.6 F) |
| 1967 | 26.2 C (79.2 F) |
| 1968 | 29.2 C (84.6 F) |
| 1969 | 30.0 C (86.0 F) |
| 1970 | 31.0 C (87.8 F) |
| 1971 | 29.4 C (84.9 F) |
| 1972 | 28.6 C (83.5 F) |
| 1973 | 29.2 C (84.6 F) |
| 1974 | 25.7 C (78.3 F) |
| 1975 | 33.2 C (91.8 F) |
| 1976 | 27.5 C (81.5 F) |
| 1977 | 29.8 C (85.6 F) |
| 1978 | 28.5 C (83.3 F) |
| 1979 | 28.0 C (82.4 F) |
| 1980 | 28.2 C (82.8 F) |
| 1981 | 26.0 C (78.8 F) |
| 1982 | 32.8 C (91.0 F) |
| 1983 | 29.8 C (85.6 F) |
| 1984 | 26.0 C (78.8 F) |
| 1985 | 25.5 C (77.9 F) |
| 1986 | 29.2 C (84.6 F) |
| 1987 | 27.5 C (81.5 F) |
| 1988 | 30.0 C (86.0 F) |
| 1989 | 29.2 C (84.6 F) |
| 1990 | 28.1 C (82.6 F) |
| 1991 | 31.2 C (88.2 F) |
| 1992 | 27.5 C (81.5 F) |
| 1993 | 26.5 C (79.7 F) |
| 1994 | 31.5 C (88.7 F) |
| 1995 | 29.0 C (84.2 F) |
| 1996 | 27.5 C (81.5 F) |
| 1997 | 12.5 C (54.5 F) |
Coldest night (TNn)
| Year | Coldest night (TNn) |
|---|---|
| 1957 | -15.5 C (4.1 F) |
| 1958 | -29.9 C (-21.8 F) |
| 1959 | -25.0 C (-13.0 F) |
| 1960 | -26.0 C (-14.8 F) |
| 1961 | -20.8 C (-5.4 F) |
| 1962 | -27.0 C (-16.6 F) |
| 1963 | -32.0 C (-25.6 F) |
| 1964 | -23.5 C (-10.3 F) |
| 1965 | -24.3 C (-11.7 F) |
| 1966 | -38.3 C (-36.9 F) |
| 1967 | -21.3 C (-6.3 F) |
| 1968 | -25.9 C (-14.6 F) |
| 1969 | -31.2 C (-24.2 F) |
| 1970 | -32.1 C (-25.8 F) |
| 1971 | -21.1 C (-6.0 F) |
| 1972 | -19.8 C (-3.6 F) |
| 1973 | -17.0 C (1.4 F) |
| 1974 | -10.1 C (13.8 F) |
| 1975 | -16.6 C (2.1 F) |
| 1976 | -27.2 C (-17.0 F) |
| 1977 | -25.2 C (-13.4 F) |
| 1978 | -26.4 C (-15.5 F) |
| 1979 | -31.2 C (-24.2 F) |
| 1980 | -28.0 C (-18.4 F) |
| 1981 | -22.4 C (-8.3 F) |
| 1982 | -31.3 C (-24.3 F) |
| 1983 | -19.4 C (-2.9 F) |
| 1984 | -26.2 C (-15.2 F) |
| 1985 | -32.8 C (-27.0 F) |
| 1986 | -29.0 C (-20.2 F) |
| 1987 | -28.2 C (-18.8 F) |
| 1988 | -17.0 C (1.4 F) |
| 1989 | -17.4 C (0.7 F) |
| 1990 | -11.2 C (11.8 F) |
| 1991 | -21.6 C (-6.9 F) |
| 1992 | -12.9 C (8.8 F) |
| 1993 | -18.0 C (-0.4 F) |
| 1994 | -26.5 C (-15.7 F) |
| 1995 | -23.0 C (-9.4 F) |
| 1996 | -26.5 C (-15.7 F) |
| 1997 | -20.0 C (-4.0 F) |
Wettest day (Rx1day)
| Year | Wettest day (Rx1day) |
|---|---|
| 1957 | n/a |
| 1958 | 33.1 mm (1.3 in) |
| 1959 | 20.7 mm (0.8 in) |
| 1960 | 45.7 mm (1.8 in) |
| 1961 | 32.6 mm (1.3 in) |
| 1962 | 32.5 mm (1.3 in) |
| 1963 | 41.0 mm (1.6 in) |
| 1964 | 37.4 mm (1.5 in) |
| 1965 | 43.7 mm (1.7 in) |
| 1966 | 17.8 mm (0.7 in) |
| 1967 | 30.9 mm (1.2 in) |
| 1968 | 30.6 mm (1.2 in) |
| 1969 | 28.8 mm (1.1 in) |
| 1970 | 31.3 mm (1.2 in) |
| 1971 | 35.8 mm (1.4 in) |
| 1972 | 30.0 mm (1.2 in) |
| 1973 | 31.2 mm (1.2 in) |
| 1974 | 23.8 mm (0.9 in) |
| 1975 | 30.9 mm (1.2 in) |
| 1976 | 49.2 mm (1.9 in) |
| 1977 | 27.8 mm (1.1 in) |
| 1978 | 15.4 mm (0.6 in) |
| 1979 | 31.0 mm (1.2 in) |
| 1980 | 28.2 mm (1.1 in) |
| 1981 | 50.6 mm (2.0 in) |
| 1982 | 25.3 mm (1.0 in) |
| 1983 | 19.7 mm (0.8 in) |
| 1984 | 24.8 mm (1.0 in) |
| 1985 | 40.4 mm (1.6 in) |
| 1986 | 23.0 mm (0.9 in) |
| 1987 | 41.5 mm (1.6 in) |
| 1988 | 59.0 mm (2.3 in) |
| 1989 | 31.8 mm (1.3 in) |
| 1990 | 47.0 mm (1.9 in) |
| 1991 | 24.4 mm (1.0 in) |
| 1992 | 20.6 mm (0.8 in) |
| 1993 | 22.4 mm (0.9 in) |
| 1994 | 25.0 mm (1.0 in) |
| 1995 | 42.3 mm (1.7 in) |
| 1996 | 26.2 mm (1.0 in) |
| 1997 | 18.2 mm (0.7 in) |
Wettest five days (Rx5day)
| Year | Wettest five days (Rx5day) |
|---|---|
| 1957 | n/a |
| 1958 | 77.0 mm (3.0 in) |
| 1959 | 56.7 mm (2.2 in) |
| 1960 | 74.5 mm (2.9 in) |
| 1961 | 65.7 mm (2.6 in) |
| 1962 | 76.7 mm (3.0 in) |
| 1963 | 51.4 mm (2.0 in) |
| 1964 | 93.2 mm (3.7 in) |
| 1965 | 116.6 mm (4.6 in) |
| 1966 | 36.3 mm (1.4 in) |
| 1967 | 53.0 mm (2.1 in) |
| 1968 | 91.1 mm (3.6 in) |
| 1969 | 66.5 mm (2.6 in) |
| 1970 | 59.5 mm (2.3 in) |
| 1971 | 52.4 mm (2.1 in) |
| 1972 | 51.1 mm (2.0 in) |
| 1973 | 41.5 mm (1.6 in) |
| 1974 | 58.0 mm (2.3 in) |
| 1975 | 59.1 mm (2.3 in) |
| 1976 | 79.6 mm (3.1 in) |
| 1977 | 50.0 mm (2.0 in) |
| 1978 | 34.4 mm (1.4 in) |
| 1979 | 46.5 mm (1.8 in) |
| 1980 | 54.8 mm (2.2 in) |
| 1981 | 80.9 mm (3.2 in) |
| 1982 | 64.5 mm (2.5 in) |
| 1983 | 38.6 mm (1.5 in) |
| 1984 | 47.3 mm (1.9 in) |
| 1985 | 90.0 mm (3.5 in) |
| 1986 | 40.4 mm (1.6 in) |
| 1987 | 81.1 mm (3.2 in) |
| 1988 | 85.7 mm (3.4 in) |
| 1989 | 66.6 mm (2.6 in) |
| 1990 | 95.1 mm (3.7 in) |
| 1991 | 52.7 mm (2.1 in) |
| 1992 | 46.9 mm (1.8 in) |
| 1993 | 53.4 mm (2.1 in) |
| 1994 | 54.3 mm (2.1 in) |
| 1995 | 66.0 mm (2.6 in) |
| 1996 | 47.6 mm (1.9 in) |
| 1997 | 37.8 mm (1.5 in) |
Longest dry spell (CDD)
| Year | Longest dry spell (CDD) |
|---|---|
| 1957 | n/a |
| 1958 | 18 days |
| 1959 | 27 days |
| 1960 | 21 days |
| 1961 | 18 days |
| 1962 | 25 days |
| 1963 | 28 days |
| 1964 | 54 days |
| 1965 | 22 days |
| 1966 | 16 days |
| 1967 | 19 days |
| 1968 | 24 days |
| 1969 | 34 days |
| 1970 | 24 days |
| 1971 | 18 days |
| 1972 | 18 days |
| 1973 | 23 days |
| 1974 | 43 days |
| 1975 | 39 days |
| 1976 | 30 days |
| 1977 | 23 days |
| 1978 | 23 days |
| 1979 | 17 days |
| 1980 | 20 days |
| 1981 | 28 days |
| 1982 | 26 days |
| 1983 | 17 days |
| 1984 | 21 days |
| 1985 | 20 days |
| 1986 | 34 days |
| 1987 | 31 days |
| 1988 | 13 days |
| 1989 | 33 days |
| 1990 | 26 days |
| 1991 | 36 days |
| 1992 | 29 days |
| 1993 | 21 days |
| 1994 | 33 days |
| 1995 | 21 days |
| 1996 | 28 days |
| 1997 | 17 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
38 years with a frostAcross 38 years with a frost, the median last spring frost at Bredviken falls on 14 May and the median first autumn frost on 30 September, which leaves a median of 140 days between them.
Fitted over all years, the growing season changes by +2.5 days per decade at this station.
| Measure | Median, all years | Earliest period | Recent period (1967 to 1996) | Recent against earliest | Fitted trend |
|---|---|---|---|---|---|
| Last spring frost | 14 May | n/a | 14 May | n/a | -2.7 days per decade |
| First autumn frost | 30 September | n/a | 30 September | n/a | -0.2 days per decade |
| Growing days | 140 days | n/a | 143 days | n/a | +2.5 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, 1958 to 1996A day with at least 30.6 mm (1.2 in) of rain is expected about once in 2 years. A day with at least 63.0 mm (2.5 in) of rain is expected about once in 100 years.
| Expected about once in | A day with at least | Note |
|---|---|---|
| 2 years | 30.6 mm (1.2 in) | |
| 5 years | 39.7 mm (1.6 in) | |
| 10 years | 45.6 mm (1.8 in) | |
| 25 years | 52.8 mm (2.1 in) | |
| 50 years | 58.0 mm (2.3 in) | Longer than the 39 years of record |
| 100 years | 63.0 mm (2.5 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 1958 to 1996.
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: 59.0 mm (2.3 in) in 1988; 50.6 mm (2.0 in) in 1981; 49.2 mm (1.9 in) in 1976.
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).