Norris Madison Pwr House Weather Records (USC00246157)
Record envelope, standing records and threshold days for Norris Madison Pwr House (USC00246157), Montana, United States, with 120 years of record.
Key Facts for Norris Madison Pwr House
- Norris Madison Pwr House (USC00246157) is a weather station in Montana, United States at 45.49 latitude and -111.63 longitude, 1,446 m (4,745 ft) above sea level.
- The station reports from 1907 to 2026, 120 years of record.
- 1,464 records set at Norris Madison Pwr House still stand.
- Records are tracked for tmax, tmin, prcp, snow, snwd: an element needs 30 years of data to be eligible.
- Norris Madison Pwr House set a daily record high maximum temperature of 28.3 C (82.9 F) on 5 October 2026 (provisional).
Provisional Records
Records set in the last 60 days are provisional until they clear the revision window.
About the Station
- Location: Montana, United States, 45.49 latitude, -111.63 longitude.
- Elevation: 1,446 m (4,745 ft).
- Period of record: 1907 to 2026, 120 years.
- Eligible elements: tmax, tmin, prcp, snow, snwd.
Daily Record Envelope and 2026
11 days at or beyond a record| Month | Highest record high | Lowest record low | 2026 highest maximum | 2026 lowest minimum |
|---|---|---|---|---|
| Jan | 16.7 C (62.1 F) | -35.6 C (-32.1 F) | 12.8 C (55.0 F) | -12.8 C (9.0 F) |
| Feb | 18.3 C (64.9 F) | -37.8 C (-36.0 F) | 16.7 C (62.1 F) | -12.2 C (10.0 F) |
| Mar | 23.9 C (75.0 F) | -27.2 C (-17.0 F) | 23.9 C (75.0 F) | -7.8 C (18.0 F) |
| Apr | 31.1 C (88.0 F) | -20.0 C (-4.0 F) | 24.4 C (75.9 F) | -2.8 C (27.0 F) |
| May | 34.4 C (93.9 F) | -8.3 C (17.1 F) | 28.9 C (84.0 F) | -0.6 C (30.9 F) |
| Jun | 36.1 C (97.0 F) | -1.7 C (28.9 F) | 30.6 C (87.1 F) | 4.4 C (39.9 F) |
| Jul | 38.9 C (102.0 F) | -0.6 C (30.9 F) | 37.8 C (100.0 F) | 9.4 C (48.9 F) |
| Aug | 38.9 C (102.0 F) | 0.6 C (33.1 F) | 36.7 C (98.1 F) | 9.4 C (48.9 F) |
| Sep | 37.2 C (99.0 F) | -10.6 C (12.9 F) | 28.3 C (82.9 F) | 5.6 C (42.1 F) |
| Oct | 31.1 C (88.0 F) | -20.0 C (-4.0 F) | 28.3 C (82.9 F) | 7.2 C (45.0 F) |
| Nov | 25.6 C (78.1 F) | -27.8 C (-18.0 F) | n/a | n/a |
| Dec | 18.9 C (66.0 F) | -33.3 C (-27.9 F) | n/a | n/a |
Which Years Hold Standing Records
1,464 standing records| Year set | Standing records |
|---|---|
| 1907 | 18 |
| 1908 | 13 |
| 1909 | 24 |
| 1910 | 13 |
| 1911 | 20 |
| 1912 | 11 |
| 1913 | 13 |
| 1914 | 5 |
| 1915 | 8 |
| 1916 | 25 |
| 1917 | 15 |
| 1918 | 26 |
| 1919 | 25 |
| 1920 | 24 |
| 1921 | 27 |
| 1922 | 15 |
| 1923 | 12 |
| 1924 | 24 |
| 1925 | 4 |
| 1926 | 13 |
| 1927 | 11 |
| 1928 | 10 |
| 1929 | 12 |
| 1930 | 14 |
| 1931 | 16 |
| 1932 | 25 |
| 1933 | 29 |
| 1934 | 18 |
| 1935 | 25 |
| 1936 | 39 |
| 1937 | 15 |
| 1938 | 6 |
| 1939 | 17 |
| 1940 | 10 |
| 1941 | 10 |
| 1942 | 3 |
| 1943 | 11 |
| 1944 | 3 |
| 1945 | 4 |
| 1946 | 7 |
| 1947 | 9 |
| 1948 | 6 |
| 1949 | 13 |
| 1950 | 21 |
| 1951 | 16 |
| 1952 | 4 |
| 1953 | 19 |
| 1954 | 17 |
| 1955 | 13 |
| 1956 | 5 |
| 1957 | 10 |
| 1958 | 13 |
| 1959 | 11 |
| 1960 | 16 |
| 1961 | 10 |
| 1962 | 15 |
| 1963 | 8 |
| 1964 | 9 |
| 1965 | 13 |
| 1966 | 13 |
| 1967 | 5 |
| 1968 | 8 |
| 1969 | 14 |
| 1970 | 5 |
| 1971 | 7 |
| 1972 | 15 |
| 1973 | 9 |
| 1974 | 10 |
| 1975 | 9 |
| 1977 | 8 |
| 1978 | 7 |
| 1979 | 2 |
| 1980 | 9 |
| 1981 | 8 |
| 1982 | 5 |
| 1983 | 13 |
| 1984 | 5 |
| 1985 | 26 |
| 1986 | 10 |
| 1987 | 17 |
| 1988 | 7 |
| 1989 | 14 |
| 1990 | 15 |
| 1991 | 3 |
| 1992 | 15 |
| 1993 | 12 |
| 1994 | 10 |
| 1995 | 8 |
| 1996 | 15 |
| 1997 | 9 |
| 1998 | 3 |
| 1999 | 12 |
| 2000 | 8 |
| 2001 | 6 |
| 2002 | 13 |
| 2003 | 17 |
| 2004 | 4 |
| 2005 | 10 |
| 2006 | 6 |
| 2007 | 27 |
| 2008 | 11 |
| 2009 | 10 |
| 2010 | 6 |
| 2011 | 5 |
| 2012 | 13 |
| 2013 | 2 |
| 2014 | 7 |
| 2015 | 24 |
| 2016 | 8 |
| 2017 | 11 |
| 2018 | 2 |
| 2019 | 8 |
| 2020 | 13 |
| 2021 | 16 |
| 2022 | 10 |
| 2023 | 10 |
| 2024 | 7 |
| 2025 | 17 |
| 2026 | 17 |
All-Time Record Progression
6 new records| Date | Kind | Detail |
|---|---|---|
| 1940-08-12 | Record high maximum temperature | Record high maximum temperature 38.9 C (102.0 F) |
| 1965-05-07 | Record daily snowfall | Record daily snowfall 61.0 cm (24.0 in) |
| 1973-04-20 | Record snow depth | Record snow depth 68.6 cm (27.0 in) |
| 1989-02-03 | Record low maximum temperature | Record low maximum temperature -28.9 C (-20.0 F) |
| 2019-02-27 | Record snow depth | Record snow depth 91.4 cm (36.0 in) |
| 2019-03-01 | Record snow depth | Record snow depth 96.5 cm (38.0 in) |
Wettest Day of Each Month
May: 128.0 mm (5.0 in)| Month | Record daily precipitation (mm) | Date |
|---|---|---|
| Jan | 23.9 mm (0.9 in) | 18 January 1958 |
| Feb | 19.1 mm (0.8 in) | 26 February 2019 |
| Mar | 37.6 mm (1.5 in) | 28 March 1962 |
| Apr | 49.5 mm (1.9 in) | 23 April 2018 |
| May | 128.0 mm (5.0 in) | 24 May 1909 |
| Jun | 58.4 mm (2.3 in) | 16 June 1957 |
| Jul | 45.7 mm (1.8 in) | 11 July 1987 |
| Aug | 43.2 mm (1.7 in) | 24 August 1910 |
| Sep | 47.8 mm (1.9 in) | 1 September 1973 |
| Oct | 85.9 mm (3.4 in) | 5 October 1913 |
| Nov | 31.8 mm (1.3 in) | 3 November 1947 |
| Dec | 38.6 mm (1.5 in) | 14 December 2015 |
Period of Record Coverage
1907 to 2026| Year | Days with data | Share of year | Complete |
|---|---|---|---|
| 1907 | 348 | 95% | Yes |
| 1908 | 362 | 99% | Yes |
| 1909 | 352 | 96% | Yes |
| 1910 | 360 | 99% | Yes |
| 1911 | 362 | 99% | Yes |
| 1912 | 360 | 98% | Yes |
| 1913 | 360 | 99% | Yes |
| 1914 | 353 | 97% | Yes |
| 1915 | 357 | 98% | Yes |
| 1916 | 359 | 98% | Yes |
| 1917 | 359 | 98% | Yes |
| 1918 | 360 | 99% | Yes |
| 1919 | 361 | 99% | Yes |
| 1920 | 355 | 97% | Yes |
| 1921 | 361 | 99% | Yes |
| 1922 | 358 | 98% | Yes |
| 1923 | 354 | 97% | Yes |
| 1924 | 364 | 99% | Yes |
| 1925 | 354 | 97% | Yes |
| 1926 | 358 | 98% | Yes |
| 1927 | 360 | 99% | Yes |
| 1928 | 358 | 98% | Yes |
| 1929 | 361 | 99% | Yes |
| 1930 | 358 | 98% | Yes |
| 1931 | 362 | 99% | Yes |
| 1932 | 366 | 100% | Yes |
| 1933 | 363 | 99% | Yes |
| 1934 | 361 | 99% | Yes |
| 1935 | 362 | 99% | Yes |
| 1936 | 356 | 97% | Yes |
| 1937 | 362 | 99% | Yes |
| 1938 | 359 | 98% | Yes |
| 1939 | 359 | 98% | Yes |
| 1940 | 361 | 99% | Yes |
| 1941 | 360 | 99% | Yes |
| 1942 | 359 | 98% | Yes |
| 1943 | 362 | 99% | Yes |
| 1944 | 363 | 99% | Yes |
| 1945 | 363 | 99% | Yes |
| 1946 | 362 | 99% | Yes |
| 1947 | 362 | 99% | Yes |
| 1948 | 364 | 99% | Yes |
| 1949 | 363 | 99% | Yes |
| 1950 | 365 | 100% | Yes |
| 1951 | 363 | 99% | Yes |
| 1952 | 365 | 100% | Yes |
| 1953 | 364 | 100% | Yes |
| 1954 | 362 | 99% | Yes |
| 1955 | 364 | 100% | Yes |
| 1956 | 365 | 100% | Yes |
| 1957 | 363 | 99% | Yes |
| 1958 | 365 | 100% | Yes |
| 1959 | 363 | 99% | Yes |
| 1960 | 363 | 99% | Yes |
| 1961 | 357 | 98% | Yes |
| 1962 | 364 | 100% | Yes |
| 1963 | 363 | 99% | Yes |
| 1964 | 365 | 100% | Yes |
| 1965 | 363 | 99% | Yes |
| 1966 | 365 | 100% | Yes |
| 1967 | 356 | 98% | Yes |
| 1968 | 366 | 100% | Yes |
| 1969 | 365 | 100% | Yes |
| 1970 | 364 | 100% | Yes |
| 1971 | 347 | 95% | Yes |
| 1972 | 361 | 99% | Yes |
| 1973 | 364 | 100% | Yes |
| 1974 | 364 | 100% | Yes |
| 1975 | 365 | 100% | Yes |
| 1976 | 366 | 100% | Yes |
| 1977 | 364 | 100% | Yes |
| 1978 | 331 | 91% | Yes |
| 1979 | 361 | 99% | Yes |
| 1980 | 365 | 100% | Yes |
| 1981 | 362 | 99% | Yes |
| 1982 | 359 | 98% | Yes |
| 1983 | 362 | 99% | Yes |
| 1984 | 360 | 98% | Yes |
| 1985 | 361 | 99% | Yes |
| 1986 | 361 | 99% | Yes |
| 1987 | 360 | 99% | Yes |
| 1988 | 363 | 99% | Yes |
| 1989 | 351 | 96% | Yes |
| 1990 | 360 | 99% | Yes |
| 1991 | 364 | 100% | Yes |
| 1992 | 361 | 99% | Yes |
| 1993 | 364 | 100% | Yes |
| 1994 | 364 | 100% | Yes |
| 1995 | 355 | 97% | Yes |
| 1996 | 362 | 99% | Yes |
| 1997 | 354 | 97% | Yes |
| 1998 | 359 | 98% | Yes |
| 1999 | 355 | 97% | Yes |
| 2000 | 342 | 93% | Yes |
| 2001 | 338 | 93% | Yes |
| 2002 | 326 | 89% | No |
| 2003 | 322 | 88% | No |
| 2004 | 339 | 93% | Yes |
| 2005 | 342 | 94% | Yes |
| 2006 | 335 | 92% | Yes |
| 2007 | 331 | 91% | Yes |
| 2008 | 330 | 90% | Yes |
| 2009 | 313 | 86% | No |
| 2010 | 312 | 85% | No |
| 2011 | 348 | 95% | Yes |
| 2012 | 363 | 99% | Yes |
| 2013 | 362 | 99% | Yes |
| 2014 | 364 | 100% | Yes |
| 2015 | 365 | 100% | Yes |
| 2016 | 365 | 100% | Yes |
| 2017 | 365 | 100% | Yes |
| 2018 | 365 | 100% | Yes |
| 2019 | 364 | 100% | Yes |
| 2020 | 363 | 99% | Yes |
| 2021 | 364 | 100% | Yes |
| 2022 | 363 | 99% | Yes |
| 2023 | 365 | 100% | Yes |
| 2024 | 366 | 100% | Yes |
| 2025 | 365 | 100% | Yes |
| 2026 | 281 | 77% | No |
Latest Records
20| Date | Station | Record | Value | Beat old record by | Old record stood | Significance |
|---|---|---|---|---|---|---|
| 5 October 2026 | Norris Madison Pwr House, US | daily high max (Provisional) | 28.3 C (82.9 F) | 0.5 C (0.9 F) | 68 years | 30 of 100 (Routine) |
| 19 September 2026 | Norris Madison Pwr House, US | daily rain (Provisional) | 27.4 mm (1.1 in) | 5.8 mm (0.23 in) | 8 years | 20 of 100 (Routine) |
| 22 August 2026 | Norris Madison Pwr House, US | daily high min (Provisional) | 20.0 C (68.0 F) | 1.1 C (2.0 F) | 3 years | 13 of 100 (Routine) |
| 25 July 2026 | Norris Madison Pwr House, US | daily high max | 36.7 C (98.1 F) | 0.6 C (1.1 F) | 92 years | 38 of 100 (Notable) |
| 25 July 2026 | Norris Madison Pwr House, US | daily high min | 21.1 C (70.0 F) | 1.1 C (2.0 F) | 1 year | 13 of 100 (Routine) |
| 17 July 2026 | Norris Madison Pwr House, US | daily high min | 20.6 C (69.1 F) | 0.6 C (1.1 F) | 107 years | 42 of 100 (Notable) |
| 12 July 2026 | Norris Madison Pwr House, US | daily high max (Tie) | 37.8 C (100.0 F) | tie | 24 years | 4 of 100 (Routine) |
| 29 June 2026 | Norris Madison Pwr House, US | daily low max | 10.6 C (51.1 F) | 3.3 C (5.9 F) | 5 years | 17 of 100 (Routine) |
| 28 June 2026 | Norris Madison Pwr House, US | daily rain | 26.4 mm (1.0 in) | 9.1 mm (0.36 in) | 115 years | 51 of 100 (Notable) |
| 31 May 2026 | Norris Madison Pwr House, US | daily rain | 31.5 mm (1.2 in) | 1.0 mm (0.04 in) | 25 years | 18 of 100 (Routine) |
| 17 May 2026 | Norris Madison Pwr House, US | daily low max | 6.7 C (44.1 F) | 1.1 C (2.0 F) | 11 years | 14 of 100 (Routine) |
| 11 May 2026 | Norris Madison Pwr House, US | daily high min (Tie) | 15.0 C (59.0 F) | tie | 0 years | 2 of 100 (Routine) |
| 24 March 2026 | Norris Madison Pwr House, US | daily high min | 9.4 C (48.9 F) | 2.2 C (4.0 F) | 69 years | 33 of 100 (Routine) |
| 21 March 2026 | Norris Madison Pwr House, US | daily high min | 9.4 C (48.9 F) | 2.2 C (4.0 F) | 9 years | 15 of 100 (Routine) |
| 21 March 2026 | Norris Madison Pwr House, US | monthly high max (Tie) | 23.9 C (75.0 F) | tie | 0 years | 5 of 100 (Routine) |
| 20 March 2026 | Norris Madison Pwr House, US | monthly high max | 23.9 C (75.0 F) | 0.6 C (1.1 F) | 97 years | 50 of 100 (Notable) |
| 20 March 2026 | Norris Madison Pwr House, US | daily high min | 9.4 C (48.9 F) | 1.1 C (2.0 F) | 28 years | 19 of 100 (Routine) |
| 19 March 2026 | Norris Madison Pwr House, US | daily high max | 22.2 C (72.0 F) | 1.6 C (2.9 F) | 116 years | 42 of 100 (Notable) |
| 18 March 2026 | Norris Madison Pwr House, US | daily high max | 22.2 C (72.0 F) | 1.1 C (2.0 F) | 84 years | 36 of 100 (Notable) |
| 17 March 2026 | Norris Madison Pwr House, US | daily high min | 10.6 C (51.1 F) | 4.5 C (8.1 F) | 104 years | 48 of 100 (Notable) |
Climate Trend
117 complete years, 1908 to 2025| Year | Annual mean temperature | Difference from the station mean |
|---|---|---|
| 1908 | 8.1 C | -0.40 C |
| 1909 | 6.9 C | -1.59 C |
| 1910 | 8.7 C | +0.21 C |
| 1911 | 6.7 C | -1.76 C |
| 1912 | 6.7 C | -1.79 C |
| 1913 | 7.0 C | -1.51 C |
| 1914 | 8.6 C | +0.10 C |
| 1915 | 8.0 C | -0.46 C |
| 1916 | 6.3 C | -2.20 C |
| 1917 | 7.5 C | -1.02 C |
| 1918 | 7.4 C | -1.06 C |
| 1919 | 7.7 C | -0.76 C |
| 1920 | 5.9 C | -2.60 C |
| 1921 | 7.2 C | -1.31 C |
| 1922 | 7.3 C | -1.20 C |
| 1923 | 6.7 C | -1.75 C |
| 1924 | 6.3 C | -2.22 C |
| 1925 | 8.5 C | +0.04 C |
| 1926 | 8.8 C | +0.28 C |
| 1927 | 7.4 C | -1.13 C |
| 1928 | 7.6 C | -0.91 C |
| 1929 | 6.9 C | -1.62 C |
| 1930 | 7.6 C | -0.90 C |
| 1931 | 8.9 C | +0.41 C |
| 1932 | 7.3 C | -1.18 C |
| 1933 | 8.7 C | +0.20 C |
| 1934 | 10.6 C | +2.15 C |
| 1935 | 8.1 C | -0.39 C |
| 1936 | 8.7 C | +0.18 C |
| 1937 | 8.0 C | -0.49 C |
| 1938 | 8.6 C | +0.13 C |
| 1939 | 9.4 C | +0.94 C |
| 1940 | 9.4 C | +0.94 C |
| 1941 | 8.9 C | +0.46 C |
| 1942 | 7.8 C | -0.65 C |
| 1943 | 8.3 C | -0.22 C |
| 1944 | 8.1 C | -0.36 C |
| 1945 | 8.4 C | -0.06 C |
| 1946 | 8.7 C | +0.17 C |
| 1947 | 8.2 C | -0.24 C |
| 1948 | 7.4 C | -1.11 C |
| 1949 | 7.8 C | -0.73 C |
| 1950 | 7.8 C | -0.67 C |
| 1951 | 7.0 C | -1.53 C |
| 1952 | 8.5 C | +0.04 C |
| 1953 | 10.0 C | +1.47 C |
| 1954 | 9.1 C | +0.60 C |
| 1955 | 6.9 C | -1.59 C |
| 1956 | 8.3 C | -0.14 C |
| 1957 | 7.9 C | -0.59 C |
| 1958 | 9.3 C | +0.84 C |
| 1959 | 8.0 C | -0.44 C |
| 1960 | 8.3 C | -0.21 C |
| 1961 | 9.2 C | +0.71 C |
| 1962 | 8.3 C | -0.18 C |
| 1963 | 8.9 C | +0.40 C |
| 1964 | 7.9 C | -0.59 C |
| 1965 | 8.3 C | -0.19 C |
| 1966 | 9.3 C | +0.81 C |
| 1967 | 8.5 C | +0.04 C |
| 1968 | 8.0 C | -0.53 C |
| 1969 | 8.2 C | -0.33 C |
| 1970 | 8.0 C | -0.52 C |
| 1971 | 7.8 C | -0.67 C |
| 1972 | 7.9 C | -0.56 C |
| 1973 | 7.9 C | -0.56 C |
| 1974 | 8.7 C | +0.17 C |
| 1975 | 6.9 C | -1.63 C |
| 1976 | 8.7 C | +0.18 C |
| 1977 | 8.4 C | -0.11 C |
| 1979 | 7.8 C | -0.68 C |
| 1980 | 8.5 C | -0.01 C |
| 1981 | 9.2 C | +0.75 C |
| 1982 | 7.3 C | -1.20 C |
| 1983 | 8.2 C | -0.24 C |
| 1984 | 7.8 C | -0.67 C |
| 1985 | 7.2 C | -1.26 C |
| 1986 | 9.1 C | +0.61 C |
| 1987 | 9.4 C | +0.90 C |
| 1988 | 9.4 C | +0.88 C |
| 1989 | 7.9 C | -0.58 C |
| 1990 | 8.8 C | +0.34 C |
| 1991 | 8.9 C | +0.38 C |
| 1992 | 9.4 C | +0.96 C |
| 1993 | 7.1 C | -1.36 C |
| 1994 | 9.5 C | +1.03 C |
| 1995 | 8.7 C | +0.19 C |
| 1996 | 8.1 C | -0.35 C |
| 1997 | 8.1 C | -0.41 C |
| 1998 | 8.7 C | +0.17 C |
| 1999 | 8.9 C | +0.44 C |
| 2000 | 8.9 C | +0.45 C |
| 2001 | 9.4 C | +0.91 C |
| 2002 | 8.0 C | -0.45 C |
| 2003 | 9.4 C | +0.90 C |
| 2004 | 9.0 C | +0.56 C |
| 2005 | 8.7 C | +0.25 C |
| 2006 | 10.3 C | +1.83 C |
| 2007 | 11.0 C | +2.47 C |
| 2008 | 9.8 C | +1.30 C |
| 2009 | 9.2 C | +0.71 C |
| 2010 | 9.4 C | +0.96 C |
| 2011 | 9.5 C | +0.97 C |
| 2012 | 11.0 C | +2.56 C |
| 2013 | 9.6 C | +1.11 C |
| 2014 | 9.5 C | +1.05 C |
| 2015 | 10.8 C | +2.35 C |
| 2016 | 10.6 C | +2.14 C |
| 2017 | 10.1 C | +1.60 C |
| 2018 | 9.7 C | +1.22 C |
| 2019 | 8.2 C | -0.29 C |
| 2020 | 9.8 C | +1.31 C |
| 2021 | 10.2 C | +1.70 C |
| 2022 | 9.1 C | +0.60 C |
| 2023 | 9.5 C | +1.00 C |
| 2024 | 10.6 C | +2.13 C |
| 2025 | 10.6 C | +2.12 C |
The annual mean temperature here has risen by 0.2 C (0.2 to 0.2) per decade over 1908 to 2025. In Fahrenheit: 0.4 F (0.3 to 0.4) per decade. The slope is a straight line fitted to 117 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 (0.2 to 0.2) per decade | 0.4 F (0.3 to 0.4) per decade | 1908 to 2025 | 117 | Rise |
| Mean daily maximum | 0.2 C (0.1 to 0.2) per decade | 0.3 F (0.2 to 0.4) per decade | 1908 to 2025 | 117 | Rise |
| Mean daily minimum | 0.2 C (0.2 to 0.3) per decade | 0.4 F (0.4 to 0.5) per decade | 1908 to 2025 | 117 | 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
1907 to 2026| Measure | Record | Year of the record | Median year | Years with a value |
|---|---|---|---|---|
| Hottest day (TXx) | 38.9 C (102.0 F) | 1940 | 35.6 C (96.1 F) | 120 |
| Coldest night (TNn) | -37.8 C (-36.0 F) | 1933 | -25.0 C (-13.0 F) | 120 |
| Wettest day (Rx1day) | 128.0 mm (5.0 in) | 1909 | 33.8 mm (1.3 in) | 120 |
| Wettest five days (Rx5day) | 128.0 mm (5.0 in) | 1909 | 54.2 mm (2.1 in) | 120 |
| Longest dry spell (CDD) | 57 days | 2005 | 28 days | 120 |
Hottest day (TXx)
| Year | Hottest day (TXx) |
|---|---|
| 1907 | 31.1 C (88.0 F) |
| 1908 | 35.6 C (96.1 F) |
| 1909 | 35.6 C (96.1 F) |
| 1910 | 37.2 C (99.0 F) |
| 1911 | 32.8 C (91.0 F) |
| 1912 | 33.3 C (91.9 F) |
| 1913 | 34.4 C (93.9 F) |
| 1914 | 35.0 C (95.0 F) |
| 1915 | 33.9 C (93.0 F) |
| 1916 | 34.4 C (93.9 F) |
| 1917 | 35.6 C (96.1 F) |
| 1918 | 35.6 C (96.1 F) |
| 1919 | 36.7 C (98.1 F) |
| 1920 | 35.0 C (95.0 F) |
| 1921 | 35.6 C (96.1 F) |
| 1922 | 35.0 C (95.0 F) |
| 1923 | 33.9 C (93.0 F) |
| 1924 | 37.2 C (99.0 F) |
| 1925 | 37.2 C (99.0 F) |
| 1926 | 37.2 C (99.0 F) |
| 1927 | 34.4 C (93.9 F) |
| 1928 | 37.2 C (99.0 F) |
| 1929 | 35.6 C (96.1 F) |
| 1930 | 36.7 C (98.1 F) |
| 1931 | 38.3 C (100.9 F) |
| 1932 | 35.6 C (96.1 F) |
| 1933 | 37.8 C (100.0 F) |
| 1934 | 37.8 C (100.0 F) |
| 1935 | 37.2 C (99.0 F) |
| 1936 | 37.8 C (100.0 F) |
| 1937 | 36.7 C (98.1 F) |
| 1938 | 35.6 C (96.1 F) |
| 1939 | 37.2 C (99.0 F) |
| 1940 | 38.9 C (102.0 F) |
| 1941 | 35.6 C (96.1 F) |
| 1942 | 36.1 C (97.0 F) |
| 1943 | 35.0 C (95.0 F) |
| 1944 | 32.2 C (90.0 F) |
| 1945 | 36.1 C (97.0 F) |
| 1946 | 36.7 C (98.1 F) |
| 1947 | 35.0 C (95.0 F) |
| 1948 | 33.9 C (93.0 F) |
| 1949 | 35.6 C (96.1 F) |
| 1950 | 35.0 C (95.0 F) |
| 1951 | 36.7 C (98.1 F) |
| 1952 | 33.3 C (91.9 F) |
| 1953 | 37.8 C (100.0 F) |
| 1954 | 36.7 C (98.1 F) |
| 1955 | 36.7 C (98.1 F) |
| 1956 | 36.1 C (97.0 F) |
| 1957 | 36.1 C (97.0 F) |
| 1958 | 35.6 C (96.1 F) |
| 1959 | 36.7 C (98.1 F) |
| 1960 | 37.8 C (100.0 F) |
| 1961 | 38.3 C (100.9 F) |
| 1962 | 33.3 C (91.9 F) |
| 1963 | 35.0 C (95.0 F) |
| 1964 | 35.0 C (95.0 F) |
| 1965 | 35.0 C (95.0 F) |
| 1966 | 36.7 C (98.1 F) |
| 1967 | 35.0 C (95.0 F) |
| 1968 | 35.0 C (95.0 F) |
| 1969 | 36.7 C (98.1 F) |
| 1970 | 34.4 C (93.9 F) |
| 1971 | 34.4 C (93.9 F) |
| 1972 | 35.0 C (95.0 F) |
| 1973 | 35.6 C (96.1 F) |
| 1974 | 35.0 C (95.0 F) |
| 1975 | 35.6 C (96.1 F) |
| 1976 | 34.4 C (93.9 F) |
| 1977 | 33.3 C (91.9 F) |
| 1978 | 33.3 C (91.9 F) |
| 1979 | 33.9 C (93.0 F) |
| 1980 | 34.4 C (93.9 F) |
| 1981 | 35.0 C (95.0 F) |
| 1982 | 33.9 C (93.0 F) |
| 1983 | 36.1 C (97.0 F) |
| 1984 | 33.9 C (93.0 F) |
| 1985 | 36.7 C (98.1 F) |
| 1986 | 35.6 C (96.1 F) |
| 1987 | 33.9 C (93.0 F) |
| 1988 | 36.7 C (98.1 F) |
| 1989 | 36.7 C (98.1 F) |
| 1990 | 37.8 C (100.0 F) |
| 1991 | 36.1 C (97.0 F) |
| 1992 | 34.4 C (93.9 F) |
| 1993 | 31.1 C (88.0 F) |
| 1994 | 36.1 C (97.0 F) |
| 1995 | 33.9 C (93.0 F) |
| 1996 | 37.2 C (99.0 F) |
| 1997 | 33.3 C (91.9 F) |
| 1998 | 35.6 C (96.1 F) |
| 1999 | 35.0 C (95.0 F) |
| 2000 | 37.2 C (99.0 F) |
| 2001 | 36.1 C (97.0 F) |
| 2002 | 38.9 C (102.0 F) |
| 2003 | 38.3 C (100.9 F) |
| 2004 | 35.0 C (95.0 F) |
| 2005 | 36.1 C (97.0 F) |
| 2006 | 36.7 C (98.1 F) |
| 2007 | 38.3 C (100.9 F) |
| 2008 | 35.6 C (96.1 F) |
| 2009 | 35.6 C (96.1 F) |
| 2010 | 35.0 C (95.0 F) |
| 2011 | 33.9 C (93.0 F) |
| 2012 | 35.0 C (95.0 F) |
| 2013 | 36.1 C (97.0 F) |
| 2014 | 33.3 C (91.9 F) |
| 2015 | 36.7 C (98.1 F) |
| 2016 | 35.0 C (95.0 F) |
| 2017 | 35.6 C (96.1 F) |
| 2018 | 37.8 C (100.0 F) |
| 2019 | 34.4 C (93.9 F) |
| 2020 | 36.1 C (97.0 F) |
| 2021 | 35.6 C (96.1 F) |
| 2022 | 37.2 C (99.0 F) |
| 2023 | 36.1 C (97.0 F) |
| 2024 | 36.7 C (98.1 F) |
| 2025 | 35.6 C (96.1 F) |
| 2026 | 37.8 C (100.0 F) |
Coldest night (TNn)
| Year | Coldest night (TNn) |
|---|---|
| 1907 | -30.0 C (-22.0 F) |
| 1908 | -24.4 C (-11.9 F) |
| 1909 | -35.6 C (-32.1 F) |
| 1910 | -28.3 C (-18.9 F) |
| 1911 | -26.7 C (-16.1 F) |
| 1912 | -23.9 C (-11.0 F) |
| 1913 | -26.1 C (-15.0 F) |
| 1914 | -31.1 C (-24.0 F) |
| 1915 | -22.2 C (-8.0 F) |
| 1916 | -32.8 C (-27.0 F) |
| 1917 | -23.9 C (-11.0 F) |
| 1918 | -30.0 C (-22.0 F) |
| 1919 | -28.3 C (-18.9 F) |
| 1920 | -27.2 C (-17.0 F) |
| 1921 | -22.2 C (-8.0 F) |
| 1922 | -26.1 C (-15.0 F) |
| 1923 | -32.2 C (-26.0 F) |
| 1924 | -33.3 C (-27.9 F) |
| 1925 | -16.7 C (1.9 F) |
| 1926 | -24.4 C (-11.9 F) |
| 1927 | -32.2 C (-26.0 F) |
| 1928 | -28.3 C (-18.9 F) |
| 1929 | -30.6 C (-23.1 F) |
| 1930 | -35.0 C (-31.0 F) |
| 1931 | -20.0 C (-4.0 F) |
| 1932 | -30.6 C (-23.1 F) |
| 1933 | -37.8 C (-36.0 F) |
| 1934 | -18.3 C (-0.9 F) |
| 1935 | -32.2 C (-26.0 F) |
| 1936 | -36.1 C (-33.0 F) |
| 1937 | -30.6 C (-23.1 F) |
| 1938 | -25.6 C (-14.1 F) |
| 1939 | -28.9 C (-20.0 F) |
| 1940 | -27.2 C (-17.0 F) |
| 1941 | -23.9 C (-11.0 F) |
| 1942 | -28.3 C (-18.9 F) |
| 1943 | -32.8 C (-27.0 F) |
| 1944 | -24.4 C (-11.9 F) |
| 1945 | -23.3 C (-9.9 F) |
| 1946 | -20.6 C (-5.1 F) |
| 1947 | -24.4 C (-11.9 F) |
| 1948 | -23.9 C (-11.0 F) |
| 1949 | -30.6 C (-23.1 F) |
| 1950 | -28.3 C (-18.9 F) |
| 1951 | -30.0 C (-22.0 F) |
| 1952 | -26.7 C (-16.1 F) |
| 1953 | -15.6 C (3.9 F) |
| 1954 | -25.0 C (-13.0 F) |
| 1955 | -26.1 C (-15.0 F) |
| 1956 | -27.2 C (-17.0 F) |
| 1957 | -33.3 C (-27.9 F) |
| 1958 | -21.1 C (-6.0 F) |
| 1959 | -27.8 C (-18.0 F) |
| 1960 | -24.4 C (-11.9 F) |
| 1961 | -24.4 C (-11.9 F) |
| 1962 | -28.9 C (-20.0 F) |
| 1963 | -31.7 C (-25.1 F) |
| 1964 | -30.6 C (-23.1 F) |
| 1965 | -22.2 C (-8.0 F) |
| 1966 | -20.6 C (-5.1 F) |
| 1967 | -22.2 C (-8.0 F) |
| 1968 | -27.8 C (-18.0 F) |
| 1969 | -26.1 C (-15.0 F) |
| 1970 | -24.4 C (-11.9 F) |
| 1971 | -24.4 C (-11.9 F) |
| 1972 | -27.2 C (-17.0 F) |
| 1973 | -27.2 C (-17.0 F) |
| 1974 | -25.0 C (-13.0 F) |
| 1975 | -24.4 C (-11.9 F) |
| 1976 | -22.2 C (-8.0 F) |
| 1977 | -22.8 C (-9.0 F) |
| 1978 | -30.6 C (-23.1 F) |
| 1979 | -27.8 C (-18.0 F) |
| 1980 | -28.9 C (-20.0 F) |
| 1981 | -28.9 C (-20.0 F) |
| 1982 | -25.0 C (-13.0 F) |
| 1983 | -31.1 C (-24.0 F) |
| 1984 | -22.2 C (-8.0 F) |
| 1985 | -27.2 C (-17.0 F) |
| 1986 | -21.7 C (-7.1 F) |
| 1987 | -23.9 C (-11.0 F) |
| 1988 | -23.9 C (-11.0 F) |
| 1989 | -34.4 C (-29.9 F) |
| 1990 | -32.2 C (-26.0 F) |
| 1991 | -23.3 C (-9.9 F) |
| 1992 | -25.0 C (-13.0 F) |
| 1993 | -25.0 C (-13.0 F) |
| 1994 | -25.6 C (-14.1 F) |
| 1995 | -21.7 C (-7.1 F) |
| 1996 | -29.4 C (-20.9 F) |
| 1997 | -25.0 C (-13.0 F) |
| 1998 | -27.2 C (-17.0 F) |
| 1999 | -16.7 C (1.9 F) |
| 2000 | -20.0 C (-4.0 F) |
| 2001 | -20.6 C (-5.1 F) |
| 2002 | -21.1 C (-6.0 F) |
| 2003 | -26.7 C (-16.1 F) |
| 2004 | -28.3 C (-18.9 F) |
| 2005 | -23.3 C (-9.9 F) |
| 2006 | -26.1 C (-15.0 F) |
| 2007 | -20.0 C (-4.0 F) |
| 2008 | -20.0 C (-4.0 F) |
| 2009 | -21.1 C (-6.0 F) |
| 2010 | -20.0 C (-4.0 F) |
| 2011 | -18.9 C (-2.0 F) |
| 2012 | -12.8 C (9.0 F) |
| 2013 | -20.6 C (-5.1 F) |
| 2014 | -22.8 C (-9.0 F) |
| 2015 | -15.0 C (5.0 F) |
| 2016 | -22.8 C (-9.0 F) |
| 2017 | -22.2 C (-8.0 F) |
| 2018 | -18.3 C (-0.9 F) |
| 2019 | -23.3 C (-9.9 F) |
| 2020 | -15.0 C (5.0 F) |
| 2021 | -19.4 C (-2.9 F) |
| 2022 | -23.3 C (-9.9 F) |
| 2023 | -20.0 C (-4.0 F) |
| 2024 | -25.0 C (-13.0 F) |
| 2025 | -31.1 C (-24.0 F) |
| 2026 | -12.8 C (9.0 F) |
Wettest day (Rx1day)
| Year | Wettest day (Rx1day) |
|---|---|
| 1907 | 48.8 mm (1.9 in) |
| 1908 | 55.1 mm (2.2 in) |
| 1909 | 128.0 mm (5.0 in) |
| 1910 | 43.2 mm (1.7 in) |
| 1911 | 40.6 mm (1.6 in) |
| 1912 | 20.8 mm (0.8 in) |
| 1913 | 85.9 mm (3.4 in) |
| 1914 | 38.1 mm (1.5 in) |
| 1915 | 30.7 mm (1.2 in) |
| 1916 | 27.9 mm (1.1 in) |
| 1917 | 38.1 mm (1.5 in) |
| 1918 | 21.6 mm (0.9 in) |
| 1919 | 32.3 mm (1.3 in) |
| 1920 | 20.1 mm (0.8 in) |
| 1921 | 29.0 mm (1.1 in) |
| 1922 | 26.9 mm (1.1 in) |
| 1923 | 25.1 mm (1.0 in) |
| 1924 | 35.1 mm (1.4 in) |
| 1925 | 23.4 mm (0.9 in) |
| 1926 | 22.1 mm (0.9 in) |
| 1927 | 36.8 mm (1.4 in) |
| 1928 | 31.8 mm (1.3 in) |
| 1929 | 45.7 mm (1.8 in) |
| 1930 | 24.4 mm (1.0 in) |
| 1931 | 24.6 mm (1.0 in) |
| 1932 | 30.0 mm (1.2 in) |
| 1933 | 35.1 mm (1.4 in) |
| 1934 | 33.8 mm (1.3 in) |
| 1935 | 50.8 mm (2.0 in) |
| 1936 | 30.0 mm (1.2 in) |
| 1937 | 57.7 mm (2.3 in) |
| 1938 | 47.8 mm (1.9 in) |
| 1939 | 29.2 mm (1.1 in) |
| 1940 | 28.4 mm (1.1 in) |
| 1941 | 40.6 mm (1.6 in) |
| 1942 | 24.9 mm (1.0 in) |
| 1943 | 41.4 mm (1.6 in) |
| 1944 | 63.0 mm (2.5 in) |
| 1945 | 27.2 mm (1.1 in) |
| 1946 | 31.8 mm (1.3 in) |
| 1947 | 36.8 mm (1.4 in) |
| 1948 | 28.4 mm (1.1 in) |
| 1949 | 23.4 mm (0.9 in) |
| 1950 | 26.9 mm (1.1 in) |
| 1951 | 32.8 mm (1.3 in) |
| 1952 | 51.8 mm (2.0 in) |
| 1953 | 30.0 mm (1.2 in) |
| 1954 | 21.3 mm (0.8 in) |
| 1955 | 19.3 mm (0.8 in) |
| 1956 | 31.5 mm (1.2 in) |
| 1957 | 58.4 mm (2.3 in) |
| 1958 | 48.0 mm (1.9 in) |
| 1959 | 57.7 mm (2.3 in) |
| 1960 | 27.9 mm (1.1 in) |
| 1961 | 39.6 mm (1.6 in) |
| 1962 | 40.1 mm (1.6 in) |
| 1963 | 25.7 mm (1.0 in) |
| 1964 | 27.7 mm (1.1 in) |
| 1965 | 49.3 mm (1.9 in) |
| 1966 | 33.8 mm (1.3 in) |
| 1967 | 33.8 mm (1.3 in) |
| 1968 | 20.8 mm (0.8 in) |
| 1969 | 56.4 mm (2.2 in) |
| 1970 | 33.5 mm (1.3 in) |
| 1971 | 26.4 mm (1.0 in) |
| 1972 | 32.8 mm (1.3 in) |
| 1973 | 47.8 mm (1.9 in) |
| 1974 | 39.4 mm (1.6 in) |
| 1975 | 45.0 mm (1.8 in) |
| 1976 | 34.5 mm (1.4 in) |
| 1977 | 29.5 mm (1.2 in) |
| 1978 | 59.9 mm (2.4 in) |
| 1979 | 46.2 mm (1.8 in) |
| 1980 | 56.1 mm (2.2 in) |
| 1981 | 47.5 mm (1.9 in) |
| 1982 | 29.7 mm (1.2 in) |
| 1983 | 22.9 mm (0.9 in) |
| 1984 | 25.9 mm (1.0 in) |
| 1985 | 25.7 mm (1.0 in) |
| 1986 | 22.4 mm (0.9 in) |
| 1987 | 45.7 mm (1.8 in) |
| 1988 | 48.3 mm (1.9 in) |
| 1989 | 43.2 mm (1.7 in) |
| 1990 | 21.1 mm (0.8 in) |
| 1991 | 27.9 mm (1.1 in) |
| 1992 | 45.7 mm (1.8 in) |
| 1993 | 37.1 mm (1.5 in) |
| 1994 | 38.1 mm (1.5 in) |
| 1995 | 41.9 mm (1.6 in) |
| 1996 | 31.2 mm (1.2 in) |
| 1997 | 32.3 mm (1.3 in) |
| 1998 | 53.1 mm (2.1 in) |
| 1999 | 25.7 mm (1.0 in) |
| 2000 | 30.5 mm (1.2 in) |
| 2001 | 47.8 mm (1.9 in) |
| 2002 | 37.3 mm (1.5 in) |
| 2003 | 24.4 mm (1.0 in) |
| 2004 | 31.8 mm (1.3 in) |
| 2005 | 27.9 mm (1.1 in) |
| 2006 | 36.3 mm (1.4 in) |
| 2007 | 38.1 mm (1.5 in) |
| 2008 | 29.2 mm (1.1 in) |
| 2009 | 17.3 mm (0.7 in) |
| 2010 | 41.1 mm (1.6 in) |
| 2011 | 34.0 mm (1.3 in) |
| 2012 | 24.9 mm (1.0 in) |
| 2013 | 35.6 mm (1.4 in) |
| 2014 | 35.1 mm (1.4 in) |
| 2015 | 40.6 mm (1.6 in) |
| 2016 | 47.5 mm (1.9 in) |
| 2017 | 43.2 mm (1.7 in) |
| 2018 | 49.5 mm (1.9 in) |
| 2019 | 30.0 mm (1.2 in) |
| 2020 | 31.8 mm (1.3 in) |
| 2021 | 33.5 mm (1.3 in) |
| 2022 | 45.7 mm (1.8 in) |
| 2023 | 28.2 mm (1.1 in) |
| 2024 | 36.3 mm (1.4 in) |
| 2025 | 48.5 mm (1.9 in) |
| 2026 | 31.5 mm (1.2 in) |
Wettest five days (Rx5day)
| Year | Wettest five days (Rx5day) |
|---|---|
| 1907 | 61.5 mm (2.4 in) |
| 1908 | 124.5 mm (4.9 in) |
| 1909 | 128.0 mm (5.0 in) |
| 1910 | 43.2 mm (1.7 in) |
| 1911 | 82.8 mm (3.3 in) |
| 1912 | 31.6 mm (1.2 in) |
| 1913 | 89.7 mm (3.5 in) |
| 1914 | 50.3 mm (2.0 in) |
| 1915 | 75.4 mm (3.0 in) |
| 1916 | 50.4 mm (2.0 in) |
| 1917 | 45.8 mm (1.8 in) |
| 1918 | 29.8 mm (1.2 in) |
| 1919 | 44.7 mm (1.8 in) |
| 1920 | 48.8 mm (1.9 in) |
| 1921 | 58.8 mm (2.3 in) |
| 1922 | 47.6 mm (1.9 in) |
| 1923 | 54.0 mm (2.1 in) |
| 1924 | 38.4 mm (1.5 in) |
| 1925 | 36.9 mm (1.5 in) |
| 1926 | 65.2 mm (2.6 in) |
| 1927 | 62.8 mm (2.5 in) |
| 1928 | 50.6 mm (2.0 in) |
| 1929 | 68.8 mm (2.7 in) |
| 1930 | 44.0 mm (1.7 in) |
| 1931 | 51.6 mm (2.0 in) |
| 1932 | 55.9 mm (2.2 in) |
| 1933 | 61.5 mm (2.4 in) |
| 1934 | 46.2 mm (1.8 in) |
| 1935 | 55.3 mm (2.2 in) |
| 1936 | 70.1 mm (2.8 in) |
| 1937 | 71.9 mm (2.8 in) |
| 1938 | 54.4 mm (2.1 in) |
| 1939 | 55.9 mm (2.2 in) |
| 1940 | 52.6 mm (2.1 in) |
| 1941 | 62.4 mm (2.5 in) |
| 1942 | 47.2 mm (1.9 in) |
| 1943 | 97.1 mm (3.8 in) |
| 1944 | 101.9 mm (4.0 in) |
| 1945 | 44.9 mm (1.8 in) |
| 1946 | 46.5 mm (1.8 in) |
| 1947 | 83.2 mm (3.3 in) |
| 1948 | 52.3 mm (2.1 in) |
| 1949 | 50.6 mm (2.0 in) |
| 1950 | 41.5 mm (1.6 in) |
| 1951 | 36.8 mm (1.4 in) |
| 1952 | 85.6 mm (3.4 in) |
| 1953 | 50.6 mm (2.0 in) |
| 1954 | 31.2 mm (1.2 in) |
| 1955 | 35.5 mm (1.4 in) |
| 1956 | 55.8 mm (2.2 in) |
| 1957 | 86.8 mm (3.4 in) |
| 1958 | 52.6 mm (2.1 in) |
| 1959 | 71.5 mm (2.8 in) |
| 1960 | 42.8 mm (1.7 in) |
| 1961 | 42.2 mm (1.7 in) |
| 1962 | 79.3 mm (3.1 in) |
| 1963 | 64.3 mm (2.5 in) |
| 1964 | 65.3 mm (2.6 in) |
| 1965 | 100.1 mm (3.9 in) |
| 1966 | 33.9 mm (1.3 in) |
| 1967 | 37.9 mm (1.5 in) |
| 1968 | 37.8 mm (1.5 in) |
| 1969 | 70.4 mm (2.8 in) |
| 1970 | 58.7 mm (2.3 in) |
| 1971 | 58.1 mm (2.3 in) |
| 1972 | 33.8 mm (1.3 in) |
| 1973 | 77.7 mm (3.1 in) |
| 1974 | 54.9 mm (2.2 in) |
| 1975 | 84.9 mm (3.3 in) |
| 1976 | 63.5 mm (2.5 in) |
| 1977 | 47.9 mm (1.9 in) |
| 1978 | 91.1 mm (3.6 in) |
| 1979 | 74.2 mm (2.9 in) |
| 1980 | 69.8 mm (2.7 in) |
| 1981 | 70.5 mm (2.8 in) |
| 1982 | 52.8 mm (2.1 in) |
| 1983 | 42.9 mm (1.7 in) |
| 1984 | 27.9 mm (1.1 in) |
| 1985 | 30.3 mm (1.2 in) |
| 1986 | 46.9 mm (1.8 in) |
| 1987 | 62.8 mm (2.5 in) |
| 1988 | 58.5 mm (2.3 in) |
| 1989 | 58.0 mm (2.3 in) |
| 1990 | 41.1 mm (1.6 in) |
| 1991 | 40.9 mm (1.6 in) |
| 1992 | 84.0 mm (3.3 in) |
| 1993 | 44.5 mm (1.8 in) |
| 1994 | 50.4 mm (2.0 in) |
| 1995 | 49.8 mm (2.0 in) |
| 1996 | 53.1 mm (2.1 in) |
| 1997 | 53.2 mm (2.1 in) |
| 1998 | 105.7 mm (4.2 in) |
| 1999 | 49.0 mm (1.9 in) |
| 2000 | 48.3 mm (1.9 in) |
| 2001 | 77.2 mm (3.0 in) |
| 2002 | 41.7 mm (1.6 in) |
| 2003 | 44.5 mm (1.8 in) |
| 2004 | 40.2 mm (1.6 in) |
| 2005 | 61.4 mm (2.4 in) |
| 2006 | 50.7 mm (2.0 in) |
| 2007 | 61.4 mm (2.4 in) |
| 2008 | 57.7 mm (2.3 in) |
| 2009 | 34.3 mm (1.4 in) |
| 2010 | 49.2 mm (1.9 in) |
| 2011 | 81.5 mm (3.2 in) |
| 2012 | 34.8 mm (1.4 in) |
| 2013 | 61.0 mm (2.4 in) |
| 2014 | 58.1 mm (2.3 in) |
| 2015 | 73.7 mm (2.9 in) |
| 2016 | 61.2 mm (2.4 in) |
| 2017 | 94.0 mm (3.7 in) |
| 2018 | 53.1 mm (2.1 in) |
| 2019 | 62.7 mm (2.5 in) |
| 2020 | 63.0 mm (2.5 in) |
| 2021 | 64.7 mm (2.5 in) |
| 2022 | 93.0 mm (3.7 in) |
| 2023 | 51.9 mm (2.0 in) |
| 2024 | 41.1 mm (1.6 in) |
| 2025 | 49.3 mm (1.9 in) |
| 2026 | 62.8 mm (2.5 in) |
Longest dry spell (CDD)
| Year | Longest dry spell (CDD) |
|---|---|
| 1907 | 30 days |
| 1908 | 33 days |
| 1909 | 47 days |
| 1910 | 27 days |
| 1911 | 25 days |
| 1912 | 46 days |
| 1913 | 23 days |
| 1914 | 52 days |
| 1915 | 34 days |
| 1916 | 45 days |
| 1917 | 25 days |
| 1918 | 24 days |
| 1919 | 33 days |
| 1920 | 25 days |
| 1921 | 34 days |
| 1922 | 17 days |
| 1923 | 28 days |
| 1924 | 19 days |
| 1925 | 39 days |
| 1926 | 28 days |
| 1927 | 29 days |
| 1928 | 24 days |
| 1929 | 18 days |
| 1930 | 18 days |
| 1931 | 29 days |
| 1932 | 20 days |
| 1933 | 24 days |
| 1934 | 28 days |
| 1935 | 39 days |
| 1936 | 25 days |
| 1937 | 26 days |
| 1938 | 39 days |
| 1939 | 42 days |
| 1940 | 21 days |
| 1941 | 26 days |
| 1942 | 17 days |
| 1943 | 35 days |
| 1944 | 26 days |
| 1945 | 30 days |
| 1946 | 22 days |
| 1947 | 40 days |
| 1948 | 35 days |
| 1949 | 20 days |
| 1950 | 27 days |
| 1951 | 24 days |
| 1952 | 30 days |
| 1953 | 25 days |
| 1954 | 43 days |
| 1955 | 17 days |
| 1956 | 46 days |
| 1957 | 20 days |
| 1958 | 19 days |
| 1959 | 24 days |
| 1960 | 41 days |
| 1961 | 31 days |
| 1962 | 30 days |
| 1963 | 23 days |
| 1964 | 30 days |
| 1965 | 29 days |
| 1966 | 19 days |
| 1967 | 26 days |
| 1968 | 23 days |
| 1969 | 29 days |
| 1970 | 20 days |
| 1971 | 26 days |
| 1972 | 38 days |
| 1973 | 32 days |
| 1974 | 22 days |
| 1975 | 22 days |
| 1976 | 32 days |
| 1977 | 48 days |
| 1978 | 24 days |
| 1979 | 34 days |
| 1980 | 24 days |
| 1981 | 31 days |
| 1982 | 19 days |
| 1983 | 24 days |
| 1984 | 24 days |
| 1985 | 19 days |
| 1986 | 26 days |
| 1987 | 34 days |
| 1988 | 27 days |
| 1989 | 25 days |
| 1990 | 36 days |
| 1991 | 24 days |
| 1992 | 31 days |
| 1993 | 34 days |
| 1994 | 36 days |
| 1995 | 34 days |
| 1996 | 52 days |
| 1997 | 23 days |
| 1998 | 32 days |
| 1999 | 35 days |
| 2000 | 48 days |
| 2001 | 45 days |
| 2002 | 48 days |
| 2003 | 30 days |
| 2004 | 24 days |
| 2005 | 57 days |
| 2006 | 25 days |
| 2007 | 37 days |
| 2008 | 23 days |
| 2009 | 36 days |
| 2010 | 23 days |
| 2011 | 36 days |
| 2012 | 27 days |
| 2013 | 45 days |
| 2014 | 19 days |
| 2015 | 27 days |
| 2016 | 49 days |
| 2017 | 29 days |
| 2018 | 16 days |
| 2019 | 20 days |
| 2020 | 23 days |
| 2021 | 18 days |
| 2022 | 22 days |
| 2023 | 21 days |
| 2024 | 28 days |
| 2025 | 28 days |
| 2026 | 37 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
117 years with a frostAcross 117 years with a frost, the median last spring frost at Norris Madison Pwr House falls on 10 May and the median first autumn frost on 30 September, which leaves a median of 143 days between them.
In 1996 to 2025 the median growing season was 157 days. That is 27 days more than in 1908 to 1937.
Fitted over all years, the growing season changes by +3.6 days per decade at this station.
| Measure | Median, all years | Earliest period (1908 to 1937) | Recent period (1996 to 2025) | Recent against earliest | Fitted trend |
|---|---|---|---|---|---|
| Last spring frost | 10 May | 22 May | 2 May | 20 days earlier | -2.0 days per decade |
| First autumn frost | 30 September | 25 September | 11 October | 16 days later | +1.6 days per decade |
| Growing days | 143 days | 130 days | 157 days | 27 days more | +3.6 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
119 years, 1907 to 2025A day with at least 34.1 mm (1.3 in) of rain is expected about once in 2 years. A day with at least 83.6 mm (3.3 in) of rain is expected about once in 100 years.
| Expected about once in | A day with at least | Note |
|---|---|---|
| 2 years | 34.1 mm (1.3 in) | |
| 5 years | 45.3 mm (1.8 in) | |
| 10 years | 53.5 mm (2.1 in) | |
| 25 years | 64.8 mm (2.6 in) | |
| 50 years | 73.9 mm (2.9 in) | |
| 100 years | 83.6 mm (3.3 in) |
The levels come from a generalised extreme value (GEV) distribution fitted by L-moments to the wettest-day total of each year, 119 years of values from 1907 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: 128.0 mm (5.0 in) in 1909; 85.9 mm (3.4 in) in 1913; 63.0 mm (2.5 in) in 1944.
Station Changes
2 suspected2 changes were suspected in the annual mean temperature of Norris Madison Pwr House, at 1973 and 1995. Each is measured against neighbouring stations.
- Relative to 5 neighbouring stations, the station's annual mean temperature from 1973 ran 0.2 C (0.4 F) lower than in the years before (possible change).
- Relative to 5 neighbouring stations, the station's annual mean temperature from 1995 ran 0.4 C (0.7 F) higher than in the years before (likely change).
| Year | Shift (C) | Shift (F) | Strength | Neighbours |
|---|---|---|---|---|
| 1973 | -0.2 | -0.4 | possible | 5 |
| 1995 | +0.4 | +0.7 | 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.
Climate Twins
2011 to 2025 against 1961 to 1990Over 2011 to 2025, Norris Madison Pwr House had a mean temperature of 9.9 C (49.9 F) and 528.4 mm (20.8 in) of rain a year. The 3 stations whose 1961 to 1990 climate was closest to that are Lakewood (United States, 831 km away), Cherry Creek Dam (United States, 857 km away) and Kassler (United States, 855 km away).
| Twin station | Country | Distance away | Mean temperature, 1961-1990 | Rain a year, 1961-1990 | Climate difference |
|---|---|---|---|---|---|
| Lakewood | United States | 831 km (516 mi) | 9.8 C (49.7 F) | 406.8 mm (16.0 in) | 0.87 |
| Cherry Creek Dam | United States | 857 km (533 mi) | 9.7 C (49.4 F) | 443.8 mm (17.5 in) | 0.93 |
| Kassler | United States | 855 km (531 mi) | 10.2 C (50.3 F) | 448.3 mm (17.6 in) | 0.95 |
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 2026-10-14 (14 October 2026). Records are computed by this site and are not official.
Data as of . Last revised (2026-10-14).