Brassua Dam Weather Records (USC00170814)
Record envelope, standing records and threshold days for Brassua Dam (USC00170814), Maine, United States, with 98 years of record.
Key Facts for Brassua Dam
- Brassua Dam (USC00170814) is a weather station in Maine, United States at 45.66 latitude and -69.81 longitude, 326 m (1,069 ft) above sea level.
- The station reports from 1929 to 2026, 98 years of record.
- 1,464 records set at Brassua Dam still stand.
- Records are tracked for tmax, tmin, prcp, snow, snwd: an element needs 30 years of data to be eligible.
- Brassua Dam set a daily record high minimum temperature of 20.6 C (69.1 F) on 4 July 2026.
About the Station
- Location: Maine, United States, 45.66 latitude, -69.81 longitude.
- Elevation: 326 m (1,069 ft).
- Period of record: 1929 to 2026, 98 years.
- Eligible elements: tmax, tmin, prcp, snow, snwd.
Daily Record Envelope and 2026
3 days at or beyond a record| Month | Highest record high | Lowest record low | 2026 highest maximum | 2026 lowest minimum |
|---|---|---|---|---|
| Jan | 12.8 C (55.0 F) | -38.3 C (-36.9 F) | 3.9 C (39.0 F) | -27.2 C (-17.0 F) |
| Feb | 15.0 C (59.0 F) | -39.4 C (-38.9 F) | 3.3 C (37.9 F) | -27.8 C (-18.0 F) |
| Mar | 23.9 C (75.0 F) | -37.2 C (-35.0 F) | 17.2 C (63.0 F) | -25.0 C (-13.0 F) |
| Apr | 26.7 C (80.1 F) | -22.2 C (-8.0 F) | 21.1 C (70.0 F) | -10.6 C (12.9 F) |
| May | 31.7 C (89.1 F) | -7.8 C (18.0 F) | 25.6 C (78.1 F) | -3.9 C (25.0 F) |
| Jun | 35.6 C (96.1 F) | -3.3 C (26.1 F) | 29.4 C (84.9 F) | -0.6 C (30.9 F) |
| Jul | 33.9 C (93.0 F) | 1.1 C (34.0 F) | 31.7 C (89.1 F) | 7.8 C (46.0 F) |
| Aug | 36.1 C (97.0 F) | -1.7 C (28.9 F) | 27.8 C (82.0 F) | 6.7 C (44.1 F) |
| Sep | 34.4 C (93.9 F) | -6.7 C (19.9 F) | 24.4 C (75.9 F) | -0.6 C (30.9 F) |
| Oct | 27.8 C (82.0 F) | -11.1 C (12.0 F) | 22.8 C (73.0 F) | 0.6 C (33.1 F) |
| Nov | 21.1 C (70.0 F) | -23.3 C (-9.9 F) | n/a | n/a |
| Dec | 15.6 C (60.1 F) | -35.6 C (-32.1 F) | n/a | n/a |
Which Years Hold Standing Records
1,464 standing records| Year set | Standing records |
|---|---|
| 1929 | 9 |
| 1930 | 1 |
| 1932 | 25 |
| 1933 | 30 |
| 1934 | 22 |
| 1935 | 13 |
| 1936 | 27 |
| 1937 | 11 |
| 1938 | 14 |
| 1939 | 9 |
| 1940 | 16 |
| 1941 | 12 |
| 1942 | 17 |
| 1943 | 21 |
| 1944 | 15 |
| 1945 | 19 |
| 1946 | 22 |
| 1947 | 34 |
| 1948 | 17 |
| 1961 | 9 |
| 1962 | 22 |
| 1963 | 23 |
| 1964 | 27 |
| 1965 | 18 |
| 1966 | 25 |
| 1967 | 24 |
| 1968 | 25 |
| 1969 | 22 |
| 1970 | 25 |
| 1971 | 24 |
| 1972 | 17 |
| 1973 | 12 |
| 1974 | 20 |
| 1975 | 13 |
| 1976 | 24 |
| 1977 | 20 |
| 1978 | 15 |
| 1979 | 34 |
| 1980 | 11 |
| 1981 | 22 |
| 1982 | 18 |
| 1983 | 18 |
| 1984 | 18 |
| 1985 | 9 |
| 1986 | 19 |
| 1987 | 28 |
| 1988 | 17 |
| 1989 | 22 |
| 1990 | 16 |
| 1991 | 13 |
| 1992 | 21 |
| 1993 | 15 |
| 1994 | 14 |
| 1995 | 18 |
| 1996 | 15 |
| 1997 | 5 |
| 1998 | 9 |
| 1999 | 25 |
| 2000 | 11 |
| 2001 | 16 |
| 2002 | 21 |
| 2003 | 17 |
| 2004 | 10 |
| 2005 | 16 |
| 2006 | 15 |
| 2007 | 14 |
| 2008 | 21 |
| 2009 | 15 |
| 2010 | 19 |
| 2011 | 14 |
| 2012 | 13 |
| 2013 | 16 |
| 2014 | 15 |
| 2015 | 11 |
| 2016 | 11 |
| 2017 | 15 |
| 2018 | 19 |
| 2019 | 4 |
| 2020 | 27 |
| 2021 | 16 |
| 2022 | 20 |
| 2023 | 12 |
| 2024 | 12 |
| 2025 | 9 |
| 2026 | 9 |
All-Time Record Progression
6 new records| Date | Kind | Detail |
|---|---|---|
| 1975-08-03 | Record high maximum temperature | Record high maximum temperature 36.1 C (97.0 F) |
| 1977-07-21 | Record high minimum temperature | Record high minimum temperature 22.8 C (73.0 F) |
| 1999-09-11 | Record daily precipitation | Record daily precipitation 106.9 mm (4.2 in) |
| 2005-02-11 | Record daily snowfall | Record daily snowfall 62.2 cm (24.5 in) |
| 2007-02-15 | Record daily snowfall | Record daily snowfall 66.0 cm (26.0 in) |
| 2019-07-21 | Record high minimum temperature | Record high minimum temperature 23.3 C (73.9 F) |
Wettest Day of Each Month
Sep: 106.9 mm (4.2 in)| Month | Record daily precipitation (mm) | Date |
|---|---|---|
| Jan | 56.1 mm (2.2 in) | 28 January 1996 |
| Feb | 46.2 mm (1.8 in) | 19 February 1998 |
| Mar | 56.9 mm (2.2 in) | 9 March 1930 |
| Apr | 54.9 mm (2.2 in) | 30 April 2008 |
| May | 65.5 mm (2.6 in) | 20 May 1986 |
| Jun | 87.6 mm (3.4 in) | 30 June 2023 |
| Jul | 73.7 mm (2.9 in) | 7 July 1986 |
| Aug | 80.0 mm (3.1 in) | 9 August 2022 |
| Sep | 106.9 mm (4.2 in) | 11 September 1999 |
| Oct | 97.0 mm (3.8 in) | 1 October 1946 |
| Nov | 89.2 mm (3.5 in) | 15 November 2009 |
| Dec | 58.9 mm (2.3 in) | 27 December 1969 |
Period of Record Coverage
1929 to 2026| Year | Days with data | Share of year | Complete |
|---|---|---|---|
| 1929 | 151 | 41% | No |
| 1930 | 31 | 8% | No |
| 1931 | 57 | 16% | No |
| 1932 | 341 | 93% | Yes |
| 1933 | 217 | 59% | No |
| 1934 | 363 | 99% | Yes |
| 1935 | 364 | 100% | Yes |
| 1936 | 364 | 99% | Yes |
| 1937 | 360 | 99% | Yes |
| 1938 | 364 | 100% | Yes |
| 1939 | 364 | 100% | Yes |
| 1940 | 366 | 100% | Yes |
| 1941 | 364 | 100% | Yes |
| 1942 | 364 | 100% | Yes |
| 1943 | 364 | 100% | Yes |
| 1944 | 365 | 100% | Yes |
| 1945 | 363 | 99% | Yes |
| 1946 | 362 | 99% | Yes |
| 1947 | 362 | 99% | Yes |
| 1948 | 211 | 58% | No |
| 1961 | 169 | 46% | No |
| 1962 | 365 | 100% | Yes |
| 1963 | 365 | 100% | Yes |
| 1964 | 365 | 100% | Yes |
| 1965 | 365 | 100% | Yes |
| 1966 | 365 | 100% | Yes |
| 1967 | 365 | 100% | Yes |
| 1968 | 365 | 100% | Yes |
| 1969 | 365 | 100% | Yes |
| 1970 | 365 | 100% | Yes |
| 1971 | 365 | 100% | Yes |
| 1972 | 366 | 100% | Yes |
| 1973 | 335 | 92% | Yes |
| 1974 | 365 | 100% | Yes |
| 1975 | 364 | 100% | Yes |
| 1976 | 366 | 100% | Yes |
| 1977 | 364 | 100% | Yes |
| 1978 | 365 | 100% | Yes |
| 1979 | 365 | 100% | Yes |
| 1980 | 365 | 100% | Yes |
| 1981 | 334 | 92% | Yes |
| 1982 | 365 | 100% | Yes |
| 1983 | 363 | 99% | Yes |
| 1984 | 366 | 100% | Yes |
| 1985 | 363 | 99% | Yes |
| 1986 | 335 | 92% | Yes |
| 1987 | 365 | 100% | Yes |
| 1988 | 366 | 100% | Yes |
| 1989 | 365 | 100% | Yes |
| 1990 | 364 | 100% | Yes |
| 1991 | 365 | 100% | Yes |
| 1992 | 366 | 100% | Yes |
| 1993 | 364 | 100% | Yes |
| 1994 | 362 | 99% | Yes |
| 1995 | 364 | 100% | Yes |
| 1996 | 365 | 100% | Yes |
| 1997 | 365 | 100% | Yes |
| 1998 | 365 | 100% | Yes |
| 1999 | 365 | 100% | Yes |
| 2000 | 366 | 100% | Yes |
| 2001 | 365 | 100% | Yes |
| 2002 | 364 | 100% | Yes |
| 2003 | 364 | 100% | Yes |
| 2004 | 365 | 100% | Yes |
| 2005 | 365 | 100% | Yes |
| 2006 | 365 | 100% | Yes |
| 2007 | 359 | 98% | Yes |
| 2008 | 365 | 100% | Yes |
| 2009 | 365 | 100% | Yes |
| 2010 | 365 | 100% | Yes |
| 2011 | 363 | 99% | Yes |
| 2012 | 351 | 96% | Yes |
| 2013 | 365 | 100% | Yes |
| 2014 | 365 | 100% | Yes |
| 2015 | 365 | 100% | Yes |
| 2016 | 366 | 100% | Yes |
| 2017 | 365 | 100% | Yes |
| 2018 | 365 | 100% | Yes |
| 2019 | 365 | 100% | Yes |
| 2020 | 366 | 100% | Yes |
| 2021 | 360 | 99% | Yes |
| 2022 | 357 | 98% | Yes |
| 2023 | 365 | 100% | Yes |
| 2024 | 364 | 99% | Yes |
| 2025 | 352 | 96% | Yes |
| 2026 | 216 | 59% | No |
Latest Records
20| Date | Station | Record | Value | Beat old record by | Old record stood | Significance |
|---|---|---|---|---|---|---|
| 4 July 2026 | Brassua Dam, US | daily high min | 20.6 C (69.1 F) | 1.2 C (2.2 F) | 24 years | 19 of 100 (Routine) |
| 3 July 2026 | Brassua Dam, US | daily high min | 22.2 C (72.0 F) | 2.8 C (5.0 F) | 8 years | 18 of 100 (Routine) |
| 3 July 2026 | Brassua Dam, US | daily high max (Tie) | 31.7 C (89.1 F) | tie | 24 years | 4 of 100 (Routine) |
| 1 July 2026 | Brassua Dam, US | daily high min | 18.3 C (64.9 F) | 1.1 C (2.0 F) | 55 years | 28 of 100 (Routine) |
| 19 June 2026 | Brassua Dam, US | daily rain | 63.0 mm (2.5 in) | 24.4 mm (1.0 in) | 17 years | 40 of 100 (Notable) |
| 13 June 2026 | Brassua Dam, US | daily high min (Tie) | 20.0 C (68.0 F) | tie | 84 years | 8 of 100 (Routine) |
| 10 June 2026 | Brassua Dam, US | daily high min | 17.8 C (64.0 F) | 2.2 C (4.0 F) | 47 years | 28 of 100 (Routine) |
| 23 May 2026 | Brassua Dam, US | daily low min (Tie) | -2.8 C (27.0 F) | tie | 64 years | 7 of 100 (Routine) |
| 20 May 2026 | Brassua Dam, US | daily high min | 16.1 C (61.0 F) | 4.4 C (7.9 F) | 47 years | 33 of 100 (Routine) |
| 7 May 2026 | Brassua Dam, US | daily rain | 24.4 mm (1.0 in) | 3.3 mm (0.13 in) | 35 years | 20 of 100 (Routine) |
| 16 April 2026 | Brassua Dam, US | daily high min | 5.6 C (42.1 F) | 2.3 C (4.1 F) | 57 years | 31 of 100 (Routine) |
| 15 April 2026 | Brassua Dam, US | daily high min | 5.6 C (42.1 F) | 1.2 C (2.2 F) | 84 years | 36 of 100 (Notable) |
| 11 March 2026 | Brassua Dam, US | daily high max | 17.2 C (63.0 F) | 5.0 C (9.0 F) | 48 years | 31 of 100 (Routine) |
| 9 March 2026 | Brassua Dam, US | daily high min | -1.1 C (30.0 F) | 1.1 C (2.0 F) | 47 years | 24 of 100 (Routine) |
| 8 March 2026 | Brassua Dam, US | daily high min (Tie) | -0.6 C (30.9 F) | tie | 39 years | 5 of 100 (Routine) |
| 20 December 2025 | Brassua Dam, US | daily rain | 24.4 mm (1.0 in) | 3.6 mm (0.14 in) | 91 years | 20 of 100 (Routine) |
| 7 October 2025 | Brassua Dam, US | daily high max (Tie) | 25.6 C (78.1 F) | tie | 78 years | 8 of 100 (Routine) |
| 6 October 2025 | Brassua Dam, US | daily high max (Tie) | 25.6 C (78.1 F) | tie | 20 years | 3 of 100 (Routine) |
| 26 September 2025 | Brassua Dam, US | daily rain | 31.5 mm (1.2 in) | 5.8 mm (0.23 in) | 34 years | 24 of 100 (Routine) |
| 14 August 2025 | Brassua Dam, US | daily high max | 33.9 C (93.0 F) | 0.6 C (1.1 F) | 4 years | 11 of 100 (Routine) |
Climate Trend
64 complete years, 1943 to 2025| Year | Annual mean temperature | Difference from the station mean |
|---|---|---|
| 1943 | 1.9 C | -2.04 C |
| 1944 | 2.3 C | -1.67 C |
| 1945 | 2.8 C | -1.08 C |
| 1962 | 2.6 C | -1.29 C |
| 1963 | 3.1 C | -0.80 C |
| 1964 | 3.4 C | -0.56 C |
| 1965 | 2.8 C | -1.15 C |
| 1966 | 3.8 C | -0.13 C |
| 1967 | 3.1 C | -0.84 C |
| 1968 | 3.2 C | -0.71 C |
| 1969 | 3.6 C | -0.36 C |
| 1970 | 3.3 C | -0.66 C |
| 1971 | 3.2 C | -0.72 C |
| 1972 | 2.5 C | -1.43 C |
| 1974 | 3.2 C | -0.75 C |
| 1975 | 3.9 C | -0.04 C |
| 1976 | 3.0 C | -0.95 C |
| 1977 | 3.5 C | -0.47 C |
| 1978 | 2.7 C | -1.19 C |
| 1979 | 4.3 C | +0.39 C |
| 1980 | 3.2 C | -0.75 C |
| 1982 | 3.3 C | -0.62 C |
| 1983 | 4.5 C | +0.61 C |
| 1984 | 4.2 C | +0.24 C |
| 1985 | 3.4 C | -0.54 C |
| 1987 | 4.2 C | +0.32 C |
| 1988 | 3.6 C | -0.30 C |
| 1989 | 2.8 C | -1.14 C |
| 1990 | 4.7 C | +0.75 C |
| 1991 | 4.1 C | +0.22 C |
| 1992 | 3.2 C | -0.75 C |
| 1993 | 3.2 C | -0.72 C |
| 1994 | 3.4 C | -0.53 C |
| 1995 | 3.8 C | -0.12 C |
| 1996 | 3.8 C | -0.12 C |
| 1997 | 3.0 C | -0.88 C |
| 1998 | 5.4 C | +1.44 C |
| 1999 | 5.3 C | +1.39 C |
| 2000 | 3.6 C | -0.32 C |
| 2001 | 4.7 C | +0.74 C |
| 2002 | 4.3 C | +0.33 C |
| 2003 | 3.5 C | -0.44 C |
| 2004 | 3.5 C | -0.44 C |
| 2005 | 4.1 C | +0.21 C |
| 2006 | 5.5 C | +1.56 C |
| 2007 | 4.2 C | +0.25 C |
| 2008 | 4.4 C | +0.48 C |
| 2009 | 3.7 C | -0.24 C |
| 2010 | 5.6 C | +1.68 C |
| 2011 | 4.9 C | +0.94 C |
| 2012 | 5.4 C | +1.52 C |
| 2013 | 4.5 C | +0.61 C |
| 2014 | 3.8 C | -0.12 C |
| 2015 | 4.1 C | +0.18 C |
| 2016 | 5.1 C | +1.18 C |
| 2017 | 4.7 C | +0.81 C |
| 2018 | 4.2 C | +0.28 C |
| 2019 | 3.5 C | -0.46 C |
| 2020 | 5.3 C | +1.34 C |
| 2021 | 5.6 C | +1.66 C |
| 2022 | 5.2 C | +1.26 C |
| 2023 | 5.6 C | +1.71 C |
| 2024 | 6.1 C | +2.14 C |
| 2025 | 4.8 C | +0.85 C |
The annual mean temperature here has risen by 0.3 C (0.3 to 0.4) per decade over 1943 to 2025. In Fahrenheit: 0.6 F (0.5 to 0.7) per decade. The slope is a straight line fitted to 64 complete years; the brackets give its 95 percent interval.
| Measure | Per decade (C) | Per decade (F) | Period | Complete years | Reading |
|---|---|---|---|---|---|
| Annual mean temperature | 0.3 C (0.3 to 0.4) per decade | 0.6 F (0.5 to 0.7) per decade | 1943 to 2025 | 64 | Rise |
| Mean daily maximum | 0.3 C (0.2 to 0.4) per decade | 0.6 F (0.4 to 0.7) per decade | 1943 to 2025 | 64 | Rise |
| Mean daily minimum | 0.4 C (0.3 to 0.5) per decade | 0.7 F (0.5 to 0.8) per decade | 1943 to 2025 | 64 | 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) | 36.1 C (97.0 F) | 1975 | 31.1 C (88.0 F) | 86 |
| Coldest night (TNn) | -39.4 C (-38.9 F) | 1962 | -31.1 C (-24.0 F) | 86 |
| Wettest day (Rx1day) | 106.9 mm (4.2 in) | 1999 | 48.1 mm (1.9 in) | 98 |
| Wettest five days (Rx5day) | 155.9 mm (6.1 in) | 1981 | 77.7 mm (3.1 in) | 98 |
| Longest dry spell (CDD) | 26 days | 1939 | 15 days | 98 |
Hottest day (TXx)
| Year | Hottest day (TXx) |
|---|---|
| 1929 | 31.1 C (88.0 F) |
| 1930 | 27.8 C (82.0 F) |
| 1931 | 7.8 C (46.0 F) |
| 1932 | 33.3 C (91.9 F) |
| 1933 | 31.1 C (88.0 F) |
| 1934 | 30.0 C (86.0 F) |
| 1935 | 31.1 C (88.0 F) |
| 1936 | 28.9 C (84.0 F) |
| 1937 | 32.2 C (90.0 F) |
| 1938 | 30.0 C (86.0 F) |
| 1939 | 35.6 C (96.1 F) |
| 1940 | 30.0 C (86.0 F) |
| 1941 | 30.0 C (86.0 F) |
| 1942 | 32.2 C (90.0 F) |
| 1943 | 28.9 C (84.0 F) |
| 1944 | 30.0 C (86.0 F) |
| 1945 | 30.0 C (86.0 F) |
| 1946 | 35.6 C (96.1 F) |
| 1947 | 33.3 C (91.9 F) |
| 1948 | 31.1 C (88.0 F) |
| 1949 | n/a |
| 1950 | n/a |
| 1951 | n/a |
| 1952 | n/a |
| 1953 | n/a |
| 1954 | n/a |
| 1955 | n/a |
| 1956 | n/a |
| 1957 | n/a |
| 1958 | n/a |
| 1959 | n/a |
| 1960 | n/a |
| 1961 | 31.7 C (89.1 F) |
| 1962 | 30.6 C (87.1 F) |
| 1963 | 31.7 C (89.1 F) |
| 1964 | 31.1 C (88.0 F) |
| 1965 | 31.1 C (88.0 F) |
| 1966 | 31.1 C (88.0 F) |
| 1967 | 30.6 C (87.1 F) |
| 1968 | 30.6 C (87.1 F) |
| 1969 | 31.1 C (88.0 F) |
| 1970 | 31.1 C (88.0 F) |
| 1971 | 30.0 C (86.0 F) |
| 1972 | 29.4 C (84.9 F) |
| 1973 | 31.7 C (89.1 F) |
| 1974 | 30.6 C (87.1 F) |
| 1975 | 36.1 C (97.0 F) |
| 1976 | 30.6 C (87.1 F) |
| 1977 | 31.1 C (88.0 F) |
| 1978 | 31.1 C (88.0 F) |
| 1979 | 30.6 C (87.1 F) |
| 1980 | 29.4 C (84.9 F) |
| 1981 | 28.9 C (84.0 F) |
| 1982 | 30.6 C (87.1 F) |
| 1983 | 31.7 C (89.1 F) |
| 1984 | 30.0 C (86.0 F) |
| 1985 | 30.0 C (86.0 F) |
| 1986 | 30.0 C (86.0 F) |
| 1987 | 31.7 C (89.1 F) |
| 1988 | 33.9 C (93.0 F) |
| 1989 | 32.2 C (90.0 F) |
| 1990 | 31.1 C (88.0 F) |
| 1991 | 31.1 C (88.0 F) |
| 1992 | 30.0 C (86.0 F) |
| 1993 | 32.2 C (90.0 F) |
| 1994 | 33.3 C (91.9 F) |
| 1995 | 32.2 C (90.0 F) |
| 1996 | 31.1 C (88.0 F) |
| 1997 | 30.6 C (87.1 F) |
| 1998 | 31.7 C (89.1 F) |
| 1999 | 32.8 C (91.0 F) |
| 2000 | 28.9 C (84.0 F) |
| 2001 | 32.2 C (90.0 F) |
| 2002 | 34.4 C (93.9 F) |
| 2003 | 34.4 C (93.9 F) |
| 2004 | 28.3 C (82.9 F) |
| 2005 | 31.1 C (88.0 F) |
| 2006 | 32.2 C (90.0 F) |
| 2007 | 30.0 C (86.0 F) |
| 2008 | 30.6 C (87.1 F) |
| 2009 | 30.0 C (86.0 F) |
| 2010 | 32.8 C (91.0 F) |
| 2011 | 30.6 C (87.1 F) |
| 2012 | 31.7 C (89.1 F) |
| 2013 | 31.1 C (88.0 F) |
| 2014 | 30.6 C (87.1 F) |
| 2015 | 31.1 C (88.0 F) |
| 2016 | 30.6 C (87.1 F) |
| 2017 | 31.1 C (88.0 F) |
| 2018 | 32.8 C (91.0 F) |
| 2019 | 30.0 C (86.0 F) |
| 2020 | 33.3 C (91.9 F) |
| 2021 | 33.3 C (91.9 F) |
| 2022 | 31.7 C (89.1 F) |
| 2023 | 32.8 C (91.0 F) |
| 2024 | 31.7 C (89.1 F) |
| 2025 | 33.9 C (93.0 F) |
| 2026 | 31.7 C (89.1 F) |
Coldest night (TNn)
| Year | Coldest night (TNn) |
|---|---|
| 1929 | -24.4 C (-11.9 F) |
| 1930 | 7.8 C (46.0 F) |
| 1931 | -27.8 C (-18.0 F) |
| 1932 | -25.6 C (-14.1 F) |
| 1933 | -35.6 C (-32.1 F) |
| 1934 | -35.6 C (-32.1 F) |
| 1935 | -32.2 C (-26.0 F) |
| 1936 | -30.0 C (-22.0 F) |
| 1937 | -27.8 C (-18.0 F) |
| 1938 | -33.3 C (-27.9 F) |
| 1939 | -26.7 C (-16.1 F) |
| 1940 | -31.1 C (-24.0 F) |
| 1941 | -32.2 C (-26.0 F) |
| 1942 | -33.3 C (-27.9 F) |
| 1943 | -33.3 C (-27.9 F) |
| 1944 | -31.1 C (-24.0 F) |
| 1945 | -32.2 C (-26.0 F) |
| 1946 | -30.0 C (-22.0 F) |
| 1947 | -26.7 C (-16.1 F) |
| 1948 | -34.4 C (-29.9 F) |
| 1949 | n/a |
| 1950 | n/a |
| 1951 | n/a |
| 1952 | n/a |
| 1953 | n/a |
| 1954 | n/a |
| 1955 | n/a |
| 1956 | n/a |
| 1957 | n/a |
| 1958 | n/a |
| 1959 | n/a |
| 1960 | n/a |
| 1961 | -23.3 C (-9.9 F) |
| 1962 | -39.4 C (-38.9 F) |
| 1963 | -33.9 C (-29.0 F) |
| 1964 | -28.9 C (-20.0 F) |
| 1965 | -32.2 C (-26.0 F) |
| 1966 | -32.2 C (-26.0 F) |
| 1967 | -36.1 C (-33.0 F) |
| 1968 | -31.1 C (-24.0 F) |
| 1969 | -30.0 C (-22.0 F) |
| 1970 | -31.7 C (-25.1 F) |
| 1971 | -37.8 C (-36.0 F) |
| 1972 | -37.2 C (-35.0 F) |
| 1973 | -31.1 C (-24.0 F) |
| 1974 | -31.7 C (-25.1 F) |
| 1975 | -32.2 C (-26.0 F) |
| 1976 | -36.1 C (-33.0 F) |
| 1977 | -30.6 C (-23.1 F) |
| 1978 | -30.6 C (-23.1 F) |
| 1979 | -32.2 C (-26.0 F) |
| 1980 | -31.1 C (-24.0 F) |
| 1981 | -32.2 C (-26.0 F) |
| 1982 | -33.3 C (-27.9 F) |
| 1983 | -28.9 C (-20.0 F) |
| 1984 | -35.6 C (-32.1 F) |
| 1985 | -28.3 C (-18.9 F) |
| 1986 | -27.8 C (-18.0 F) |
| 1987 | -31.1 C (-24.0 F) |
| 1988 | -31.1 C (-24.0 F) |
| 1989 | -34.4 C (-29.9 F) |
| 1990 | -31.1 C (-24.0 F) |
| 1991 | -29.4 C (-20.9 F) |
| 1992 | -28.9 C (-20.0 F) |
| 1993 | -36.1 C (-33.0 F) |
| 1994 | -33.9 C (-29.0 F) |
| 1995 | -38.3 C (-36.9 F) |
| 1996 | -31.7 C (-25.1 F) |
| 1997 | -32.2 C (-26.0 F) |
| 1998 | -31.7 C (-25.1 F) |
| 1999 | -35.0 C (-31.0 F) |
| 2000 | -33.9 C (-29.0 F) |
| 2001 | -32.8 C (-27.0 F) |
| 2002 | -24.4 C (-11.9 F) |
| 2003 | -31.7 C (-25.1 F) |
| 2004 | -31.1 C (-24.0 F) |
| 2005 | -30.6 C (-23.1 F) |
| 2006 | -25.0 C (-13.0 F) |
| 2007 | -28.9 C (-20.0 F) |
| 2008 | -37.2 C (-35.0 F) |
| 2009 | -37.2 C (-35.0 F) |
| 2010 | -27.2 C (-17.0 F) |
| 2011 | -30.0 C (-22.0 F) |
| 2012 | -31.1 C (-24.0 F) |
| 2013 | -31.1 C (-24.0 F) |
| 2014 | -30.6 C (-23.1 F) |
| 2015 | -30.6 C (-23.1 F) |
| 2016 | -28.3 C (-18.9 F) |
| 2017 | -28.9 C (-20.0 F) |
| 2018 | -27.8 C (-18.0 F) |
| 2019 | -28.3 C (-18.9 F) |
| 2020 | -31.1 C (-24.0 F) |
| 2021 | -27.2 C (-17.0 F) |
| 2022 | -35.6 C (-32.1 F) |
| 2023 | -32.2 C (-26.0 F) |
| 2024 | -23.9 C (-11.0 F) |
| 2025 | -29.4 C (-20.9 F) |
| 2026 | -27.8 C (-18.0 F) |
Wettest day (Rx1day)
| Year | Wettest day (Rx1day) |
|---|---|
| 1929 | 25.1 mm (1.0 in) |
| 1930 | 56.9 mm (2.2 in) |
| 1931 | 37.6 mm (1.5 in) |
| 1932 | 105.4 mm (4.1 in) |
| 1933 | 32.8 mm (1.3 in) |
| 1934 | 45.0 mm (1.8 in) |
| 1935 | 46.0 mm (1.8 in) |
| 1936 | 54.1 mm (2.1 in) |
| 1937 | 48.3 mm (1.9 in) |
| 1938 | 56.4 mm (2.2 in) |
| 1939 | 46.2 mm (1.8 in) |
| 1940 | 42.9 mm (1.7 in) |
| 1941 | 43.4 mm (1.7 in) |
| 1942 | 48.8 mm (1.9 in) |
| 1943 | 42.9 mm (1.7 in) |
| 1944 | 39.9 mm (1.6 in) |
| 1945 | 57.7 mm (2.3 in) |
| 1946 | 97.0 mm (3.8 in) |
| 1947 | 33.5 mm (1.3 in) |
| 1948 | 39.4 mm (1.6 in) |
| 1949 | 29.7 mm (1.2 in) |
| 1950 | 51.8 mm (2.0 in) |
| 1951 | 42.2 mm (1.7 in) |
| 1952 | 55.9 mm (2.2 in) |
| 1953 | 49.3 mm (1.9 in) |
| 1954 | 72.4 mm (2.9 in) |
| 1955 | 51.6 mm (2.0 in) |
| 1956 | 35.8 mm (1.4 in) |
| 1957 | 39.4 mm (1.6 in) |
| 1958 | 31.8 mm (1.3 in) |
| 1959 | 36.1 mm (1.4 in) |
| 1960 | 76.2 mm (3.0 in) |
| 1961 | 38.4 mm (1.5 in) |
| 1962 | 63.8 mm (2.5 in) |
| 1963 | 47.5 mm (1.9 in) |
| 1964 | 30.7 mm (1.2 in) |
| 1965 | 34.0 mm (1.3 in) |
| 1966 | 42.4 mm (1.7 in) |
| 1967 | 43.4 mm (1.7 in) |
| 1968 | 45.5 mm (1.8 in) |
| 1969 | 63.5 mm (2.5 in) |
| 1970 | 57.9 mm (2.3 in) |
| 1971 | 37.8 mm (1.5 in) |
| 1972 | 48.3 mm (1.9 in) |
| 1973 | 55.1 mm (2.2 in) |
| 1974 | 37.1 mm (1.5 in) |
| 1975 | 42.4 mm (1.7 in) |
| 1976 | 46.2 mm (1.8 in) |
| 1977 | 35.8 mm (1.4 in) |
| 1978 | 60.2 mm (2.4 in) |
| 1979 | 35.3 mm (1.4 in) |
| 1980 | 29.5 mm (1.2 in) |
| 1981 | 95.0 mm (3.7 in) |
| 1982 | 58.4 mm (2.3 in) |
| 1983 | 63.2 mm (2.5 in) |
| 1984 | 55.9 mm (2.2 in) |
| 1985 | 63.5 mm (2.5 in) |
| 1986 | 73.7 mm (2.9 in) |
| 1987 | 52.1 mm (2.1 in) |
| 1988 | 51.1 mm (2.0 in) |
| 1989 | 30.0 mm (1.2 in) |
| 1990 | 43.7 mm (1.7 in) |
| 1991 | 71.6 mm (2.8 in) |
| 1992 | 47.8 mm (1.9 in) |
| 1993 | 36.3 mm (1.4 in) |
| 1994 | 55.6 mm (2.2 in) |
| 1995 | 50.5 mm (2.0 in) |
| 1996 | 88.4 mm (3.5 in) |
| 1997 | 30.2 mm (1.2 in) |
| 1998 | 46.2 mm (1.8 in) |
| 1999 | 106.9 mm (4.2 in) |
| 2000 | 48.8 mm (1.9 in) |
| 2001 | 50.5 mm (2.0 in) |
| 2002 | 35.1 mm (1.4 in) |
| 2003 | 44.7 mm (1.8 in) |
| 2004 | 33.0 mm (1.3 in) |
| 2005 | 65.8 mm (2.6 in) |
| 2006 | 73.2 mm (2.9 in) |
| 2007 | 52.6 mm (2.1 in) |
| 2008 | 54.9 mm (2.2 in) |
| 2009 | 89.2 mm (3.5 in) |
| 2010 | 42.4 mm (1.7 in) |
| 2011 | 63.2 mm (2.5 in) |
| 2012 | 75.7 mm (3.0 in) |
| 2013 | 52.3 mm (2.1 in) |
| 2014 | 54.9 mm (2.2 in) |
| 2015 | 40.6 mm (1.6 in) |
| 2016 | 51.1 mm (2.0 in) |
| 2017 | 46.2 mm (1.8 in) |
| 2018 | 43.7 mm (1.7 in) |
| 2019 | 34.5 mm (1.4 in) |
| 2020 | 46.2 mm (1.8 in) |
| 2021 | 45.2 mm (1.8 in) |
| 2022 | 80.0 mm (3.1 in) |
| 2023 | 87.6 mm (3.4 in) |
| 2024 | 55.1 mm (2.2 in) |
| 2025 | 34.8 mm (1.4 in) |
| 2026 | 63.0 mm (2.5 in) |
Wettest five days (Rx5day)
| Year | Wettest five days (Rx5day) |
|---|---|
| 1929 | 57.4 mm (2.3 in) |
| 1930 | 90.2 mm (3.6 in) |
| 1931 | 57.4 mm (2.3 in) |
| 1932 | 110.5 mm (4.4 in) |
| 1933 | 49.9 mm (2.0 in) |
| 1934 | 59.7 mm (2.4 in) |
| 1935 | 72.2 mm (2.8 in) |
| 1936 | 90.7 mm (3.6 in) |
| 1937 | 84.9 mm (3.3 in) |
| 1938 | 88.9 mm (3.5 in) |
| 1939 | 63.5 mm (2.5 in) |
| 1940 | 69.3 mm (2.7 in) |
| 1941 | 46.9 mm (1.8 in) |
| 1942 | 95.2 mm (3.7 in) |
| 1943 | 90.9 mm (3.6 in) |
| 1944 | 50.8 mm (2.0 in) |
| 1945 | 92.0 mm (3.6 in) |
| 1946 | 100.8 mm (4.0 in) |
| 1947 | 61.9 mm (2.4 in) |
| 1948 | 89.6 mm (3.5 in) |
| 1949 | 69.0 mm (2.7 in) |
| 1950 | 81.6 mm (3.2 in) |
| 1951 | 63.2 mm (2.5 in) |
| 1952 | 67.3 mm (2.6 in) |
| 1953 | 77.7 mm (3.1 in) |
| 1954 | 102.7 mm (4.0 in) |
| 1955 | 74.7 mm (2.9 in) |
| 1956 | 71.9 mm (2.8 in) |
| 1957 | 67.0 mm (2.6 in) |
| 1958 | 64.1 mm (2.5 in) |
| 1959 | 73.5 mm (2.9 in) |
| 1960 | 89.9 mm (3.5 in) |
| 1961 | 75.5 mm (3.0 in) |
| 1962 | 78.0 mm (3.1 in) |
| 1963 | 112.8 mm (4.4 in) |
| 1964 | 56.4 mm (2.2 in) |
| 1965 | 58.2 mm (2.3 in) |
| 1966 | 69.3 mm (2.7 in) |
| 1967 | 81.0 mm (3.2 in) |
| 1968 | 55.0 mm (2.2 in) |
| 1969 | 99.8 mm (3.9 in) |
| 1970 | 65.8 mm (2.6 in) |
| 1971 | 55.8 mm (2.2 in) |
| 1972 | 57.2 mm (2.3 in) |
| 1973 | 104.1 mm (4.1 in) |
| 1974 | 56.6 mm (2.2 in) |
| 1975 | 61.6 mm (2.4 in) |
| 1976 | 88.6 mm (3.5 in) |
| 1977 | 70.7 mm (2.8 in) |
| 1978 | 91.8 mm (3.6 in) |
| 1979 | 74.2 mm (2.9 in) |
| 1980 | 44.3 mm (1.7 in) |
| 1981 | 155.9 mm (6.1 in) |
| 1982 | 76.7 mm (3.0 in) |
| 1983 | 98.2 mm (3.9 in) |
| 1984 | 139.7 mm (5.5 in) |
| 1985 | 95.7 mm (3.8 in) |
| 1986 | 110.9 mm (4.4 in) |
| 1987 | 79.6 mm (3.1 in) |
| 1988 | 72.5 mm (2.9 in) |
| 1989 | 65.8 mm (2.6 in) |
| 1990 | 70.5 mm (2.8 in) |
| 1991 | 88.4 mm (3.5 in) |
| 1992 | 69.1 mm (2.7 in) |
| 1993 | 77.6 mm (3.1 in) |
| 1994 | 69.5 mm (2.7 in) |
| 1995 | 81.8 mm (3.2 in) |
| 1996 | 106.2 mm (4.2 in) |
| 1997 | 44.8 mm (1.8 in) |
| 1998 | 81.3 mm (3.2 in) |
| 1999 | 112.0 mm (4.4 in) |
| 2000 | 88.4 mm (3.5 in) |
| 2001 | 66.0 mm (2.6 in) |
| 2002 | 59.0 mm (2.3 in) |
| 2003 | 85.6 mm (3.4 in) |
| 2004 | 66.1 mm (2.6 in) |
| 2005 | 88.5 mm (3.5 in) |
| 2006 | 114.3 mm (4.5 in) |
| 2007 | 72.4 mm (2.9 in) |
| 2008 | 119.4 mm (4.7 in) |
| 2009 | 112.3 mm (4.4 in) |
| 2010 | 99.6 mm (3.9 in) |
| 2011 | 78.5 mm (3.1 in) |
| 2012 | 106.0 mm (4.2 in) |
| 2013 | 86.4 mm (3.4 in) |
| 2014 | 97.7 mm (3.8 in) |
| 2015 | 81.5 mm (3.2 in) |
| 2016 | 82.1 mm (3.2 in) |
| 2017 | 78.0 mm (3.1 in) |
| 2018 | 68.6 mm (2.7 in) |
| 2019 | 68.4 mm (2.7 in) |
| 2020 | 109.7 mm (4.3 in) |
| 2021 | 50.5 mm (2.0 in) |
| 2022 | 107.7 mm (4.2 in) |
| 2023 | 112.6 mm (4.4 in) |
| 2024 | 68.7 mm (2.7 in) |
| 2025 | 50.2 mm (2.0 in) |
| 2026 | 75.4 mm (3.0 in) |
Longest dry spell (CDD)
| Year | Longest dry spell (CDD) |
|---|---|
| 1929 | 14 days |
| 1930 | 18 days |
| 1931 | 14 days |
| 1932 | 18 days |
| 1933 | 12 days |
| 1934 | 15 days |
| 1935 | 14 days |
| 1936 | 14 days |
| 1937 | 12 days |
| 1938 | 14 days |
| 1939 | 26 days |
| 1940 | 12 days |
| 1941 | 18 days |
| 1942 | 19 days |
| 1943 | 14 days |
| 1944 | 15 days |
| 1945 | 17 days |
| 1946 | 17 days |
| 1947 | 15 days |
| 1948 | 15 days |
| 1949 | 11 days |
| 1950 | 15 days |
| 1951 | 15 days |
| 1952 | 22 days |
| 1953 | 15 days |
| 1954 | 14 days |
| 1955 | 11 days |
| 1956 | 19 days |
| 1957 | 16 days |
| 1958 | 15 days |
| 1959 | 26 days |
| 1960 | 12 days |
| 1961 | 20 days |
| 1962 | 13 days |
| 1963 | 16 days |
| 1964 | 15 days |
| 1965 | 20 days |
| 1966 | 12 days |
| 1967 | 12 days |
| 1968 | 12 days |
| 1969 | 15 days |
| 1970 | 25 days |
| 1971 | 17 days |
| 1972 | 12 days |
| 1973 | 14 days |
| 1974 | 12 days |
| 1975 | 18 days |
| 1976 | 13 days |
| 1977 | 14 days |
| 1978 | 18 days |
| 1979 | 18 days |
| 1980 | 23 days |
| 1981 | 9 days |
| 1982 | 16 days |
| 1983 | 20 days |
| 1984 | 11 days |
| 1985 | 17 days |
| 1986 | 13 days |
| 1987 | 20 days |
| 1988 | 18 days |
| 1989 | 12 days |
| 1990 | 13 days |
| 1991 | 14 days |
| 1992 | 15 days |
| 1993 | 10 days |
| 1994 | 14 days |
| 1995 | 10 days |
| 1996 | 12 days |
| 1997 | 15 days |
| 1998 | 17 days |
| 1999 | 18 days |
| 2000 | 13 days |
| 2001 | 15 days |
| 2002 | 15 days |
| 2003 | 21 days |
| 2004 | 25 days |
| 2005 | 16 days |
| 2006 | 9 days |
| 2007 | 17 days |
| 2008 | 12 days |
| 2009 | 18 days |
| 2010 | 22 days |
| 2011 | 10 days |
| 2012 | 11 days |
| 2013 | 17 days |
| 2014 | 12 days |
| 2015 | 11 days |
| 2016 | 18 days |
| 2017 | 17 days |
| 2018 | 13 days |
| 2019 | 11 days |
| 2020 | 17 days |
| 2021 | 23 days |
| 2022 | 12 days |
| 2023 | 16 days |
| 2024 | 20 days |
| 2025 | 11 days |
| 2026 | 9 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
64 years with a frostAcross 64 years with a frost, the median last spring frost at Brassua Dam falls on 26 May and the median first autumn frost on 23 September, which leaves a median of 121 days between them.
In 1996 to 2025 the median growing season was 130 days. That is 14 days more than in 1943 to 1991.
Fitted over all years, the growing season changes by +3.8 days per decade at this station.
| Measure | Median, all years | Earliest period (1943 to 1991) | Recent period (1996 to 2025) | Recent against earliest | Fitted trend |
|---|---|---|---|---|---|
| Last spring frost | 26 May | 28 May | 21 May | 7 days earlier | -1.6 days per decade |
| First autumn frost | 23 September | 19 September | 28 September | 9 days later | +2.2 days per decade |
| Growing days | 121 days | 116 days | 130 days | 14 days more | +3.8 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
97 years, 1929 to 2025A day with at least 47.6 mm (1.9 in) of rain is expected about once in 2 years. A day with at least 113.4 mm (4.5 in) of rain is expected about once in 100 years.
| Expected about once in | A day with at least | Note |
|---|---|---|
| 2 years | 47.6 mm (1.9 in) | |
| 5 years | 62.5 mm (2.5 in) | |
| 10 years | 73.3 mm (2.9 in) | |
| 25 years | 88.3 mm (3.5 in) | |
| 50 years | 100.4 mm (4.0 in) | |
| 100 years | 113.4 mm (4.5 in) | Longer than the 97 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, 97 years of values from 1929 to 2025.
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: 106.9 mm (4.2 in) in 1999; 105.4 mm (4.1 in) in 1932; 97.0 mm (3.8 in) in 1946.
Station Changes
No change in the annual mean temperature of this station was found against its neighbours.
Climate Twins
2011 to 2025 against 1961 to 1990Over 2011 to 2025, Brassua Dam had a mean temperature of 4.9 C (40.7 F) and 1,122.0 mm (44.2 in) of rain a year. The 3 stations whose 1961 to 1990 climate was closest to that are Parry Sound (Canada, 794 km away), Stillwater Rsvr (United States, 457 km away) and Miramichi A (Canada, 366 km away).
| Twin station | Country | Distance away | Mean temperature, 1961-1990 | Rain a year, 1961-1990 | Climate difference |
|---|---|---|---|---|---|
| Parry Sound | Canada | 794 km (493 mi) | 5.3 C (41.5 F) | 1,106.9 mm (43.6 in) | 0.75 |
| Stillwater Rsvr | United States | 457 km (284 mi) | 4.6 C (40.2 F) | 1,172.1 mm (46.1 in) | 0.77 |
| Miramichi A | Canada | 366 km (227 mi) | 4.6 C (40.3 F) | 1,111.8 mm (43.8 in) | 0.82 |
Twins are stations, not cities. A twin is one of the three stations at least 100 km away whose earlier climate is closest to this station's recent one, so a close match does not mean the two places look alike in other ways. A station move or a gap in a record can change that station's averages. The list describes past climate; it is not a forecast and does not say what caused any change. How twins are found, and a search for any station.
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 2026-10-16 (16 October 2026). Records are computed by this site and are not official.
Data as of . Last revised (2026-10-12).