Dunn Ctr 1E Weather Records (USC00322365)
Record envelope, standing records and threshold days for Dunn Ctr 1E (USC00322365), North Dakota, United States, with 109 years of record.
Key Facts for Dunn Ctr 1E
- Dunn Ctr 1E (USC00322365) is a weather station in North Dakota, United States at 47.35 latitude and -102.59 longitude, 667 m (2,187 ft) above sea level.
- The station reports from 1918 to 2026, 109 years of record.
- 1,464 records set at Dunn Ctr 1E still stand.
- Records are tracked for tmax, tmin, prcp, snow, snwd: an element needs 30 years of data to be eligible.
- Dunn Ctr 1E tied a daily record high minimum temperature of 17.8 C (64.0 F) on 7 September 2026 (provisional).
Provisional Records
Records set in the last 60 days are provisional until they clear the revision window.
About the Station
- Location: North Dakota, United States, 47.35 latitude, -102.59 longitude.
- Elevation: 667 m (2,187 ft).
- Period of record: 1918 to 2026, 109 years.
- Eligible elements: tmax, tmin, prcp, snow, snwd.
Daily Record Envelope and 2026
18 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) | -43.3 C (-45.9 F) | 8.9 C (48.0 F) | -34.4 C (-29.9 F) |
| Feb | 18.3 C (64.9 F) | -46.7 C (-52.1 F) | 14.4 C (57.9 F) | -23.3 C (-9.9 F) |
| Mar | 26.7 C (80.1 F) | -37.2 C (-35.0 F) | 25.0 C (77.0 F) | -23.9 C (-11.0 F) |
| Apr | 35.6 C (96.1 F) | -25.6 C (-14.1 F) | 29.4 C (84.9 F) | -9.4 C (15.1 F) |
| May | 38.3 C (100.9 F) | -11.1 C (12.0 F) | 32.8 C (91.0 F) | -8.9 C (16.0 F) |
| Jun | 42.2 C (108.0 F) | -5.6 C (21.9 F) | 35.6 C (96.1 F) | 3.9 C (39.0 F) |
| Jul | 43.9 C (111.0 F) | -6.7 C (19.9 F) | 42.2 C (108.0 F) | 10.6 C (51.1 F) |
| Aug | 43.3 C (109.9 F) | -1.7 C (28.9 F) | 40.6 C (105.1 F) | 6.1 C (43.0 F) |
| Sep | 41.7 C (107.1 F) | -10.0 C (14.0 F) | 35.6 C (96.1 F) | 2.2 C (36.0 F) |
| Oct | 36.7 C (98.1 F) | -25.6 C (-14.1 F) | 28.9 C (84.0 F) | -0.6 C (30.9 F) |
| Nov | 25.0 C (77.0 F) | -30.6 C (-23.1 F) | n/a | n/a |
| Dec | 17.8 C (64.0 F) | -38.9 C (-38.0 F) | n/a | n/a |
Which Years Hold Standing Records
1,464 standing records| Year set | Standing records |
|---|---|
| 1919 | 36 |
| 1920 | 11 |
| 1921 | 19 |
| 1922 | 11 |
| 1923 | 9 |
| 1924 | 24 |
| 1925 | 26 |
| 1926 | 23 |
| 1927 | 14 |
| 1928 | 18 |
| 1929 | 24 |
| 1930 | 15 |
| 1931 | 29 |
| 1932 | 9 |
| 1933 | 9 |
| 1934 | 27 |
| 1935 | 18 |
| 1936 | 50 |
| 1937 | 19 |
| 1938 | 9 |
| 1939 | 31 |
| 1940 | 16 |
| 1941 | 9 |
| 1942 | 18 |
| 1943 | 14 |
| 1944 | 13 |
| 1945 | 9 |
| 1946 | 9 |
| 1947 | 11 |
| 1948 | 18 |
| 1949 | 23 |
| 1950 | 29 |
| 1951 | 25 |
| 1952 | 13 |
| 1953 | 10 |
| 1954 | 17 |
| 1955 | 11 |
| 1956 | 10 |
| 1957 | 8 |
| 1958 | 11 |
| 1959 | 18 |
| 1960 | 10 |
| 1961 | 7 |
| 1962 | 20 |
| 1963 | 12 |
| 1964 | 17 |
| 1965 | 22 |
| 1966 | 8 |
| 1967 | 5 |
| 1968 | 12 |
| 1969 | 7 |
| 1970 | 7 |
| 1971 | 4 |
| 1972 | 13 |
| 1973 | 7 |
| 1974 | 6 |
| 1975 | 14 |
| 1976 | 6 |
| 1977 | 16 |
| 1978 | 7 |
| 1979 | 11 |
| 1980 | 13 |
| 1981 | 8 |
| 1982 | 9 |
| 1983 | 17 |
| 1984 | 6 |
| 1985 | 27 |
| 1986 | 6 |
| 1987 | 15 |
| 1988 | 30 |
| 1989 | 8 |
| 1990 | 12 |
| 1991 | 25 |
| 1992 | 24 |
| 1993 | 14 |
| 1994 | 20 |
| 1995 | 12 |
| 1996 | 14 |
| 1997 | 15 |
| 1998 | 8 |
| 1999 | 4 |
| 2000 | 3 |
| 2001 | 9 |
| 2002 | 12 |
| 2003 | 11 |
| 2004 | 1 |
| 2009 | 13 |
| 2010 | 4 |
| 2011 | 11 |
| 2012 | 21 |
| 2013 | 7 |
| 2014 | 5 |
| 2015 | 14 |
| 2016 | 9 |
| 2017 | 9 |
| 2018 | 7 |
| 2019 | 7 |
| 2020 | 13 |
| 2021 | 16 |
| 2022 | 14 |
| 2023 | 9 |
| 2024 | 16 |
| 2025 | 17 |
| 2026 | 15 |
All-Time Record Progression
8 new records| Date | Kind | Detail |
|---|---|---|
| 1964-08-30 | Record daily precipitation | Record daily precipitation 94.7 mm (3.7 in) |
| 1975-03-28 | Record daily snowfall | Record daily snowfall 35.6 cm (14.0 in) |
| 1978-03-02 | Record snow depth | Record snow depth 86.4 cm (34.0 in) |
| 1983-12-24 | Record low maximum temperature | Record low maximum temperature -30.6 C (-23.1 F) |
| 1988-06-06 | Record high minimum temperature | Record high minimum temperature 25.0 C (77.0 F) |
| 2002-07-18 | Record high minimum temperature | Record high minimum temperature 25.6 C (78.1 F) |
| 2003-08-15 | Record high minimum temperature | Record high minimum temperature 27.2 C (81.0 F) |
| 2022-04-13 | Record daily snowfall | Record daily snowfall 66.0 cm (26.0 in) |
Wettest Day of Each Month
Aug: 94.7 mm (3.7 in)| Month | Record daily precipitation (mm) | Date |
|---|---|---|
| Jan | 19.1 mm (0.8 in) | 8 January 1949 |
| Feb | 38.1 mm (1.5 in) | 25 February 1998 |
| Mar | 27.9 mm (1.1 in) | 24 March 2018 |
| Apr | 55.1 mm (2.2 in) | 25 April 2016 |
| May | 74.9 mm (2.9 in) | 27 May 2014 |
| Jun | 87.6 mm (3.4 in) | 4 June 1948 |
| Jul | 87.1 mm (3.4 in) | 23 July 1927 |
| Aug | 94.7 mm (3.7 in) | 30 August 1964 |
| Sep | 60.5 mm (2.4 in) | 24 September 2016 |
| Oct | 65.5 mm (2.6 in) | 28 October 1982 |
| Nov | 45.7 mm (1.8 in) | 5 November 1922 |
| Dec | 20.3 mm (0.8 in) | 27 December 2009 |
Period of Record Coverage
1919 to 2026| Year | Days with data | Share of year | Complete |
|---|---|---|---|
| 1919 | 318 | 87% | No |
| 1920 | 361 | 99% | Yes |
| 1921 | 359 | 98% | Yes |
| 1922 | 354 | 97% | Yes |
| 1923 | 320 | 88% | No |
| 1924 | 362 | 99% | Yes |
| 1925 | 358 | 98% | Yes |
| 1926 | 341 | 93% | Yes |
| 1927 | 360 | 99% | Yes |
| 1928 | 360 | 98% | Yes |
| 1929 | 355 | 97% | Yes |
| 1930 | 359 | 98% | Yes |
| 1931 | 363 | 99% | Yes |
| 1932 | 361 | 99% | Yes |
| 1933 | 365 | 100% | Yes |
| 1934 | 362 | 99% | Yes |
| 1935 | 362 | 99% | Yes |
| 1936 | 364 | 99% | Yes |
| 1937 | 362 | 99% | Yes |
| 1938 | 365 | 100% | Yes |
| 1939 | 365 | 100% | Yes |
| 1940 | 364 | 99% | Yes |
| 1941 | 363 | 99% | Yes |
| 1942 | 360 | 99% | Yes |
| 1943 | 362 | 99% | Yes |
| 1944 | 359 | 98% | Yes |
| 1945 | 360 | 99% | Yes |
| 1946 | 339 | 93% | Yes |
| 1947 | 334 | 92% | Yes |
| 1948 | 314 | 86% | No |
| 1949 | 360 | 99% | Yes |
| 1950 | 364 | 100% | Yes |
| 1951 | 304 | 83% | No |
| 1952 | 364 | 99% | Yes |
| 1953 | 363 | 99% | Yes |
| 1954 | 365 | 100% | Yes |
| 1955 | 346 | 95% | Yes |
| 1956 | 362 | 99% | Yes |
| 1957 | 362 | 99% | Yes |
| 1958 | 361 | 99% | Yes |
| 1959 | 362 | 99% | Yes |
| 1960 | 365 | 100% | Yes |
| 1961 | 364 | 100% | Yes |
| 1962 | 361 | 99% | Yes |
| 1963 | 365 | 100% | Yes |
| 1964 | 364 | 99% | Yes |
| 1965 | 365 | 100% | Yes |
| 1966 | 363 | 99% | Yes |
| 1967 | 365 | 100% | Yes |
| 1968 | 366 | 100% | Yes |
| 1969 | 364 | 100% | Yes |
| 1970 | 365 | 100% | Yes |
| 1971 | 365 | 100% | Yes |
| 1972 | 364 | 99% | Yes |
| 1973 | 334 | 92% | Yes |
| 1974 | 360 | 99% | Yes |
| 1975 | 365 | 100% | Yes |
| 1976 | 364 | 99% | Yes |
| 1977 | 365 | 100% | Yes |
| 1978 | 364 | 100% | Yes |
| 1979 | 332 | 91% | Yes |
| 1980 | 364 | 99% | Yes |
| 1981 | 364 | 100% | Yes |
| 1982 | 361 | 99% | Yes |
| 1983 | 330 | 90% | Yes |
| 1984 | 366 | 100% | Yes |
| 1985 | 350 | 96% | Yes |
| 1986 | 334 | 92% | Yes |
| 1987 | 326 | 89% | No |
| 1988 | 338 | 92% | Yes |
| 1989 | 336 | 92% | Yes |
| 1990 | 349 | 96% | Yes |
| 1991 | 351 | 96% | Yes |
| 1992 | 343 | 94% | Yes |
| 1993 | 355 | 97% | Yes |
| 1994 | 344 | 94% | Yes |
| 1995 | 346 | 95% | Yes |
| 1996 | 340 | 93% | Yes |
| 1997 | 343 | 94% | Yes |
| 1998 | 351 | 96% | Yes |
| 1999 | 254 | 70% | No |
| 2000 | 172 | 47% | No |
| 2001 | 204 | 56% | No |
| 2002 | 190 | 52% | No |
| 2003 | 167 | 46% | No |
| 2004 | 39 | 11% | No |
| 2009 | 207 | 57% | No |
| 2010 | 359 | 98% | Yes |
| 2011 | 355 | 97% | Yes |
| 2012 | 350 | 96% | Yes |
| 2013 | 355 | 97% | Yes |
| 2014 | 283 | 78% | No |
| 2015 | 334 | 92% | Yes |
| 2016 | 355 | 97% | Yes |
| 2017 | 352 | 96% | Yes |
| 2018 | 343 | 94% | Yes |
| 2019 | 339 | 93% | Yes |
| 2020 | 345 | 94% | Yes |
| 2021 | 347 | 95% | Yes |
| 2022 | 342 | 94% | Yes |
| 2023 | 346 | 95% | Yes |
| 2024 | 348 | 95% | Yes |
| 2025 | 355 | 97% | Yes |
| 2026 | 273 | 75% | No |
Latest Records
20| Date | Station | Record | Value | Beat old record by | Old record stood | Significance |
|---|---|---|---|---|---|---|
| 7 September 2026 | Dunn Ctr 1E, US | daily high min (Tie, Provisional) | 17.8 C (64.0 F) | tie | 12 years | 3 of 100 (Routine) |
| 15 August 2026 | Dunn Ctr 1E, US | daily rain | 29.0 mm (1.1 in) | 1.1 mm (0.04 in) | 108 years | 41 of 100 (Notable) |
| 2 August 2026 | Dunn Ctr 1E, US | daily high max | 40.6 C (105.1 F) | 2.8 C (5.0 F) | 75 years | 37 of 100 (Notable) |
| 30 July 2026 | Dunn Ctr 1E, US | daily high max (Tie) | 39.4 C (102.9 F) | tie | 51 years | 6 of 100 (Routine) |
| 20 July 2026 | Dunn Ctr 1E, US | daily high max (Tie) | 40.0 C (104.0 F) | tie | 13 years | 3 of 100 (Routine) |
| 14 July 2026 | Dunn Ctr 1E, US | daily high max | 40.0 C (104.0 F) | 1.1 C (2.0 F) | 37 years | 23 of 100 (Routine) |
| 13 July 2026 | Dunn Ctr 1E, US | daily high max | 42.2 C (108.0 F) | 0.5 C (0.9 F) | 89 years | 37 of 100 (Notable) |
| 12 July 2026 | Dunn Ctr 1E, US | daily high max | 38.9 C (102.0 F) | 1.7 C (3.1 F) | 100 years | 43 of 100 (Notable) |
| 8 June 2026 | Dunn Ctr 1E, US | daily high max | 35.6 C (96.1 F) | 1.2 C (2.2 F) | 3 years | 12 of 100 (Routine) |
| 14 May 2026 | Dunn Ctr 1E, US | daily high min | 13.3 C (55.9 F) | 1.1 C (2.0 F) | 24 years | 19 of 100 (Routine) |
| 7 May 2026 | Dunn Ctr 1E, US | daily low min (Tie) | -8.9 C (16.0 F) | tie | 96 years | 9 of 100 (Routine) |
| 23 April 2026 | Dunn Ctr 1E, US | daily high max | 29.4 C (84.9 F) | 0.5 C (0.9 F) | 40 years | 22 of 100 (Routine) |
| 14 April 2026 | Dunn Ctr 1E, US | daily rain | 24.4 mm (1.0 in) | 10.7 mm (0.4 in) | 103 years | 20 of 100 (Routine) |
| 21 March 2026 | Dunn Ctr 1E, US | daily high max | 22.2 C (72.0 F) | 2.2 C (4.0 F) | 97 years | 41 of 100 (Notable) |
| 20 March 2026 | Dunn Ctr 1E, US | daily high max | 25.0 C (77.0 F) | 5.6 C (10.1 F) | 4 years | 17 of 100 (Routine) |
| 16 March 2026 | Dunn Ctr 1E, US | daily low min (Tie) | -23.9 C (-11.0 F) | tie | 87 years | 9 of 100 (Routine) |
| 9 March 2026 | Dunn Ctr 1E, US | daily high max | 19.4 C (66.9 F) | 2.7 C (4.9 F) | 4 years | 14 of 100 (Routine) |
| 17 February 2026 | Dunn Ctr 1E, US | daily high max | 14.4 C (57.9 F) | 1.6 C (2.9 F) | 8 years | 13 of 100 (Routine) |
| 16 February 2026 | Dunn Ctr 1E, US | daily high max | 13.3 C (55.9 F) | 3.9 C (7.0 F) | 28 years | 22 of 100 (Routine) |
| 14 February 2026 | Dunn Ctr 1E, US | daily high max | 12.2 C (54.0 F) | 1.1 C (2.0 F) | 95 years | 39 of 100 (Notable) |
Climate Trend
82 complete years, 1920 to 2025| Year | Annual mean temperature | Difference from the station mean |
|---|---|---|
| 1920 | 5.0 C | -0.19 C |
| 1921 | 6.1 C | +0.96 C |
| 1922 | 4.4 C | -0.75 C |
| 1924 | 4.0 C | -1.22 C |
| 1925 | 4.9 C | -0.27 C |
| 1927 | 3.0 C | -2.16 C |
| 1928 | 4.9 C | -0.26 C |
| 1929 | 3.1 C | -2.04 C |
| 1930 | 5.3 C | +0.09 C |
| 1931 | 7.1 C | +1.91 C |
| 1932 | 4.5 C | -0.66 C |
| 1933 | 5.6 C | +0.38 C |
| 1934 | 6.8 C | +1.63 C |
| 1935 | 4.5 C | -0.72 C |
| 1936 | 4.3 C | -0.85 C |
| 1937 | 4.6 C | -0.59 C |
| 1938 | 5.1 C | -0.08 C |
| 1939 | 4.5 C | -0.64 C |
| 1940 | 5.1 C | -0.10 C |
| 1941 | 5.9 C | +0.69 C |
| 1942 | 5.1 C | -0.13 C |
| 1943 | 4.4 C | -0.75 C |
| 1944 | 4.5 C | -0.64 C |
| 1945 | 3.6 C | -1.56 C |
| 1949 | 4.4 C | -0.78 C |
| 1950 | 1.5 C | -3.68 C |
| 1952 | 4.6 C | -0.56 C |
| 1953 | 5.3 C | +0.15 C |
| 1954 | 4.8 C | -0.41 C |
| 1956 | 4.7 C | -0.45 C |
| 1957 | 5.1 C | -0.08 C |
| 1958 | 5.4 C | +0.20 C |
| 1959 | 4.4 C | -0.76 C |
| 1960 | 5.0 C | -0.20 C |
| 1961 | 5.7 C | +0.54 C |
| 1962 | 5.0 C | -0.14 C |
| 1963 | 6.1 C | +0.90 C |
| 1964 | 4.8 C | -0.36 C |
| 1965 | 3.5 C | -1.66 C |
| 1966 | 4.0 C | -1.23 C |
| 1967 | 4.4 C | -0.75 C |
| 1968 | 4.2 C | -1.02 C |
| 1969 | 4.3 C | -0.90 C |
| 1970 | 3.8 C | -1.35 C |
| 1971 | 4.4 C | -0.75 C |
| 1972 | 3.4 C | -1.76 C |
| 1974 | 5.1 C | -0.09 C |
| 1975 | 4.5 C | -0.68 C |
| 1976 | 5.8 C | +0.61 C |
| 1977 | 5.4 C | +0.22 C |
| 1978 | 3.7 C | -1.44 C |
| 1980 | 5.8 C | +0.66 C |
| 1981 | 6.9 C | +1.76 C |
| 1982 | 3.5 C | -1.70 C |
| 1984 | 5.8 C | +0.59 C |
| 1985 | 4.3 C | -0.85 C |
| 1986 | 6.7 C | +1.51 C |
| 1987 | 8.7 C | +3.47 C |
| 1988 | 7.7 C | +2.52 C |
| 1990 | 8.1 C | +2.88 C |
| 1991 | 7.5 C | +2.33 C |
| 1992 | 7.0 C | +1.83 C |
| 1993 | 5.1 C | -0.11 C |
| 1994 | 6.2 C | +1.06 C |
| 1995 | 6.0 C | +0.78 C |
| 1996 | 4.0 C | -1.23 C |
| 1997 | 6.6 C | +1.44 C |
| 1998 | 7.4 C | +2.24 C |
| 2010 | 4.3 C | -0.89 C |
| 2011 | 4.5 C | -0.72 C |
| 2012 | 6.6 C | +1.44 C |
| 2013 | 4.4 C | -0.74 C |
| 2015 | 6.5 C | +1.27 C |
| 2016 | 6.8 C | +1.61 C |
| 2017 | 5.4 C | +0.24 C |
| 2018 | 4.7 C | -0.50 C |
| 2019 | 3.6 C | -1.54 C |
| 2020 | 6.1 C | +0.92 C |
| 2021 | 6.7 C | +1.49 C |
| 2023 | 6.1 C | +0.87 C |
| 2024 | 6.4 C | +1.19 C |
| 2025 | 5.7 C | +0.55 C |
The annual mean temperature here has risen by 0.1 C (0.1 to 0.2) per decade over 1920 to 2025. In Fahrenheit: 0.3 F (0.1 to 0.4) per decade. The slope is a straight line fitted to 82 complete years; the brackets give its 95 percent interval.
| Measure | Per decade (C) | Per decade (F) | Period | Complete years | Reading |
|---|---|---|---|---|---|
| Annual mean temperature | 0.1 C (0.1 to 0.2) per decade | 0.3 F (0.1 to 0.4) per decade | 1920 to 2025 | 82 | Rise |
| Mean daily maximum | 0.2 C (0.1 to 0.3) per decade | 0.3 F (0.1 to 0.5) per decade | 1920 to 2025 | 82 | Rise |
| Mean daily minimum | 0.10 C (0.02 to 0.19) per decade | 0.19 F (0.03 to 0.34) per decade | 1920 to 2025 | 82 | 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
1918 to 2026| Measure | Record | Year of the record | Median year | Years with a value |
|---|---|---|---|---|
| Hottest day (TXx) | 43.9 C (111.0 F) | 1936 | 38.1 C (100.5 F) | 104 |
| Coldest night (TNn) | -46.7 C (-52.1 F) | 1936 | -34.4 C (-29.9 F) | 104 |
| Wettest day (Rx1day) | 94.7 mm (3.7 in) | 1964 | 40.6 mm (1.6 in) | 105 |
| Wettest five days (Rx5day) | 144.0 mm (5.7 in) | 1947 | 64.5 mm (2.5 in) | 105 |
| Longest dry spell (CDD) | 74 days | 1934 | 33 days | 105 |
Hottest day (TXx)
| Year | Hottest day (TXx) |
|---|---|
| 1918 | n/a |
| 1919 | 42.2 C (108.0 F) |
| 1920 | 37.2 C (99.0 F) |
| 1921 | 37.8 C (100.0 F) |
| 1922 | 36.1 C (97.0 F) |
| 1923 | 36.7 C (98.1 F) |
| 1924 | 38.3 C (100.9 F) |
| 1925 | 38.3 C (100.9 F) |
| 1926 | 38.3 C (100.9 F) |
| 1927 | 32.8 C (91.0 F) |
| 1928 | 37.8 C (100.0 F) |
| 1929 | 41.1 C (106.0 F) |
| 1930 | 38.9 C (102.0 F) |
| 1931 | 42.2 C (108.0 F) |
| 1932 | 38.9 C (102.0 F) |
| 1933 | 40.0 C (104.0 F) |
| 1934 | 39.4 C (102.9 F) |
| 1935 | 38.9 C (102.0 F) |
| 1936 | 43.9 C (111.0 F) |
| 1937 | 40.6 C (105.1 F) |
| 1938 | 35.0 C (95.0 F) |
| 1939 | 40.6 C (105.1 F) |
| 1940 | 39.4 C (102.9 F) |
| 1941 | 39.4 C (102.9 F) |
| 1942 | 37.8 C (100.0 F) |
| 1943 | 35.6 C (96.1 F) |
| 1944 | 35.0 C (95.0 F) |
| 1945 | 36.1 C (97.0 F) |
| 1946 | 38.3 C (100.9 F) |
| 1947 | 37.8 C (100.0 F) |
| 1948 | 41.7 C (107.1 F) |
| 1949 | 43.3 C (109.9 F) |
| 1950 | 36.7 C (98.1 F) |
| 1951 | 37.8 C (100.0 F) |
| 1952 | 37.2 C (99.0 F) |
| 1953 | 35.6 C (96.1 F) |
| 1954 | 37.8 C (100.0 F) |
| 1955 | 37.8 C (100.0 F) |
| 1956 | 37.8 C (100.0 F) |
| 1957 | 38.9 C (102.0 F) |
| 1958 | 39.4 C (102.9 F) |
| 1959 | 37.8 C (100.0 F) |
| 1960 | 41.7 C (107.1 F) |
| 1961 | 37.2 C (99.0 F) |
| 1962 | 35.0 C (95.0 F) |
| 1963 | 37.2 C (99.0 F) |
| 1964 | 38.9 C (102.0 F) |
| 1965 | 37.2 C (99.0 F) |
| 1966 | 37.8 C (100.0 F) |
| 1967 | 35.6 C (96.1 F) |
| 1968 | 37.2 C (99.0 F) |
| 1969 | 39.4 C (102.9 F) |
| 1970 | 36.1 C (97.0 F) |
| 1971 | 38.3 C (100.9 F) |
| 1972 | 37.8 C (100.0 F) |
| 1973 | 39.4 C (102.9 F) |
| 1974 | 37.8 C (100.0 F) |
| 1975 | 39.4 C (102.9 F) |
| 1976 | 38.9 C (102.0 F) |
| 1977 | 36.7 C (98.1 F) |
| 1978 | 40.6 C (105.1 F) |
| 1979 | 38.3 C (100.9 F) |
| 1980 | 38.3 C (100.9 F) |
| 1981 | 41.1 C (106.0 F) |
| 1982 | 36.7 C (98.1 F) |
| 1983 | 38.3 C (100.9 F) |
| 1984 | 38.9 C (102.0 F) |
| 1985 | 36.7 C (98.1 F) |
| 1986 | 35.0 C (95.0 F) |
| 1987 | 37.2 C (99.0 F) |
| 1988 | 42.2 C (108.0 F) |
| 1989 | 41.7 C (107.1 F) |
| 1990 | 37.2 C (99.0 F) |
| 1991 | 40.0 C (104.0 F) |
| 1992 | 39.4 C (102.9 F) |
| 1993 | 33.9 C (93.0 F) |
| 1994 | 38.3 C (100.9 F) |
| 1995 | 37.2 C (99.0 F) |
| 1996 | 39.4 C (102.9 F) |
| 1997 | 38.9 C (102.0 F) |
| 1998 | 39.4 C (102.9 F) |
| 1999 | 37.8 C (100.0 F) |
| 2000 | 38.9 C (102.0 F) |
| 2001 | 37.8 C (100.0 F) |
| 2002 | 36.7 C (98.1 F) |
| 2003 | 40.6 C (105.1 F) |
| 2004 | 17.8 C (64.0 F) |
| 2009 | 37.2 C (99.0 F) |
| 2010 | 35.6 C (96.1 F) |
| 2011 | 36.7 C (98.1 F) |
| 2012 | 40.0 C (104.0 F) |
| 2013 | 36.1 C (97.0 F) |
| 2014 | 36.1 C (97.0 F) |
| 2015 | 36.7 C (98.1 F) |
| 2016 | 36.7 C (98.1 F) |
| 2017 | 40.0 C (104.0 F) |
| 2018 | 40.6 C (105.1 F) |
| 2019 | 35.0 C (95.0 F) |
| 2020 | 37.2 C (99.0 F) |
| 2021 | 40.6 C (105.1 F) |
| 2022 | 39.4 C (102.9 F) |
| 2023 | 37.8 C (100.0 F) |
| 2024 | 43.3 C (109.9 F) |
| 2025 | 39.4 C (102.9 F) |
| 2026 | 42.2 C (108.0 F) |
Coldest night (TNn)
| Year | Coldest night (TNn) |
|---|---|
| 1918 | n/a |
| 1919 | -33.9 C (-29.0 F) |
| 1920 | -40.6 C (-41.1 F) |
| 1921 | -33.9 C (-29.0 F) |
| 1922 | -38.9 C (-38.0 F) |
| 1923 | -35.6 C (-32.1 F) |
| 1924 | -36.1 C (-33.0 F) |
| 1925 | -31.7 C (-25.1 F) |
| 1926 | -30.6 C (-23.1 F) |
| 1927 | -36.1 C (-33.0 F) |
| 1928 | -39.4 C (-38.9 F) |
| 1929 | -41.7 C (-43.1 F) |
| 1930 | -35.0 C (-31.0 F) |
| 1931 | -26.7 C (-16.1 F) |
| 1932 | -32.2 C (-26.0 F) |
| 1933 | -38.3 C (-36.9 F) |
| 1934 | -33.9 C (-29.0 F) |
| 1935 | -41.7 C (-43.1 F) |
| 1936 | -46.7 C (-52.1 F) |
| 1937 | -37.2 C (-35.0 F) |
| 1938 | -37.2 C (-35.0 F) |
| 1939 | -38.3 C (-36.9 F) |
| 1940 | -39.4 C (-38.9 F) |
| 1941 | -31.1 C (-24.0 F) |
| 1942 | -36.7 C (-34.1 F) |
| 1943 | -39.4 C (-38.9 F) |
| 1944 | -38.9 C (-38.0 F) |
| 1945 | -31.1 C (-24.0 F) |
| 1946 | -31.7 C (-25.1 F) |
| 1947 | -33.3 C (-27.9 F) |
| 1948 | -35.0 C (-31.0 F) |
| 1949 | -42.8 C (-45.0 F) |
| 1950 | -41.7 C (-43.1 F) |
| 1951 | -37.8 C (-36.0 F) |
| 1952 | -33.3 C (-27.9 F) |
| 1953 | -31.7 C (-25.1 F) |
| 1954 | -38.3 C (-36.9 F) |
| 1955 | -33.9 C (-29.0 F) |
| 1956 | -31.7 C (-25.1 F) |
| 1957 | -34.4 C (-29.9 F) |
| 1958 | -31.7 C (-25.1 F) |
| 1959 | -43.3 C (-45.9 F) |
| 1960 | -28.9 C (-20.0 F) |
| 1961 | -32.2 C (-26.0 F) |
| 1962 | -38.9 C (-38.0 F) |
| 1963 | -33.3 C (-27.9 F) |
| 1964 | -32.8 C (-27.0 F) |
| 1965 | -36.1 C (-33.0 F) |
| 1966 | -39.4 C (-38.9 F) |
| 1967 | -36.7 C (-34.1 F) |
| 1968 | -38.3 C (-36.9 F) |
| 1969 | -33.3 C (-27.9 F) |
| 1970 | -38.3 C (-36.9 F) |
| 1971 | -33.9 C (-29.0 F) |
| 1972 | -36.1 C (-33.0 F) |
| 1973 | -36.7 C (-34.1 F) |
| 1974 | -36.1 C (-33.0 F) |
| 1975 | -30.6 C (-23.1 F) |
| 1976 | -31.7 C (-25.1 F) |
| 1977 | -36.7 C (-34.1 F) |
| 1978 | -36.7 C (-34.1 F) |
| 1979 | -37.2 C (-35.0 F) |
| 1980 | -34.4 C (-29.9 F) |
| 1981 | -30.0 C (-22.0 F) |
| 1982 | -38.3 C (-36.9 F) |
| 1983 | -38.9 C (-38.0 F) |
| 1984 | -33.3 C (-27.9 F) |
| 1985 | -31.7 C (-25.1 F) |
| 1986 | -36.7 C (-34.1 F) |
| 1987 | -25.0 C (-13.0 F) |
| 1988 | -35.6 C (-32.1 F) |
| 1989 | -34.4 C (-29.9 F) |
| 1990 | -37.2 C (-35.0 F) |
| 1991 | -27.8 C (-18.0 F) |
| 1992 | -32.2 C (-26.0 F) |
| 1993 | -32.2 C (-26.0 F) |
| 1994 | -36.1 C (-33.0 F) |
| 1995 | -31.1 C (-24.0 F) |
| 1996 | -37.2 C (-35.0 F) |
| 1997 | -33.9 C (-29.0 F) |
| 1998 | -33.3 C (-27.9 F) |
| 1999 | -30.6 C (-23.1 F) |
| 2000 | -30.0 C (-22.0 F) |
| 2001 | -30.0 C (-22.0 F) |
| 2002 | -30.6 C (-23.1 F) |
| 2003 | -30.6 C (-23.1 F) |
| 2004 | -33.3 C (-27.9 F) |
| 2009 | -32.2 C (-26.0 F) |
| 2010 | -39.4 C (-38.9 F) |
| 2011 | -34.4 C (-29.9 F) |
| 2012 | -28.9 C (-20.0 F) |
| 2013 | -35.0 C (-31.0 F) |
| 2014 | -30.0 C (-22.0 F) |
| 2015 | -31.7 C (-25.1 F) |
| 2016 | -31.1 C (-24.0 F) |
| 2017 | -33.9 C (-29.0 F) |
| 2018 | -36.1 C (-33.0 F) |
| 2019 | -35.0 C (-31.0 F) |
| 2020 | -29.4 C (-20.9 F) |
| 2021 | -36.7 C (-34.1 F) |
| 2022 | -33.3 C (-27.9 F) |
| 2023 | -35.0 C (-31.0 F) |
| 2024 | -36.7 C (-34.1 F) |
| 2025 | -40.6 C (-41.1 F) |
| 2026 | -34.4 C (-29.9 F) |
Wettest day (Rx1day)
| Year | Wettest day (Rx1day) |
|---|---|
| 1918 | 46.2 mm (1.8 in) |
| 1919 | 16.5 mm (0.6 in) |
| 1920 | 57.7 mm (2.3 in) |
| 1921 | 50.8 mm (2.0 in) |
| 1922 | 52.8 mm (2.1 in) |
| 1923 | 50.3 mm (2.0 in) |
| 1924 | 24.4 mm (1.0 in) |
| 1925 | 28.4 mm (1.1 in) |
| 1926 | 25.4 mm (1.0 in) |
| 1927 | 87.1 mm (3.4 in) |
| 1928 | 83.3 mm (3.3 in) |
| 1929 | 44.7 mm (1.8 in) |
| 1930 | 34.3 mm (1.4 in) |
| 1931 | 36.1 mm (1.4 in) |
| 1932 | 27.4 mm (1.1 in) |
| 1933 | 51.3 mm (2.0 in) |
| 1934 | 34.3 mm (1.4 in) |
| 1935 | 51.3 mm (2.0 in) |
| 1936 | 18.5 mm (0.7 in) |
| 1937 | 43.2 mm (1.7 in) |
| 1938 | 40.9 mm (1.6 in) |
| 1939 | 35.8 mm (1.4 in) |
| 1940 | 43.7 mm (1.7 in) |
| 1941 | 42.9 mm (1.7 in) |
| 1942 | 40.1 mm (1.6 in) |
| 1943 | 46.7 mm (1.8 in) |
| 1944 | 60.2 mm (2.4 in) |
| 1945 | 27.2 mm (1.1 in) |
| 1946 | 24.4 mm (1.0 in) |
| 1947 | 50.8 mm (2.0 in) |
| 1948 | 87.6 mm (3.4 in) |
| 1949 | 55.1 mm (2.2 in) |
| 1950 | 35.8 mm (1.4 in) |
| 1951 | 35.3 mm (1.4 in) |
| 1952 | 27.7 mm (1.1 in) |
| 1953 | 72.1 mm (2.8 in) |
| 1954 | 45.0 mm (1.8 in) |
| 1955 | 33.0 mm (1.3 in) |
| 1956 | 44.5 mm (1.8 in) |
| 1957 | 78.0 mm (3.1 in) |
| 1958 | 32.3 mm (1.3 in) |
| 1959 | 38.1 mm (1.5 in) |
| 1960 | 29.2 mm (1.1 in) |
| 1961 | 36.3 mm (1.4 in) |
| 1962 | 79.5 mm (3.1 in) |
| 1963 | 34.8 mm (1.4 in) |
| 1964 | 94.7 mm (3.7 in) |
| 1965 | 65.5 mm (2.6 in) |
| 1966 | 31.0 mm (1.2 in) |
| 1967 | 35.8 mm (1.4 in) |
| 1968 | 62.0 mm (2.4 in) |
| 1969 | 30.5 mm (1.2 in) |
| 1970 | 63.5 mm (2.5 in) |
| 1971 | 59.9 mm (2.4 in) |
| 1972 | 75.2 mm (3.0 in) |
| 1973 | 42.2 mm (1.7 in) |
| 1974 | 23.4 mm (0.9 in) |
| 1975 | 38.1 mm (1.5 in) |
| 1976 | 40.6 mm (1.6 in) |
| 1977 | 30.5 mm (1.2 in) |
| 1978 | 38.1 mm (1.5 in) |
| 1979 | 22.4 mm (0.9 in) |
| 1980 | 45.0 mm (1.8 in) |
| 1981 | 33.0 mm (1.3 in) |
| 1982 | 65.5 mm (2.6 in) |
| 1983 | 31.8 mm (1.3 in) |
| 1984 | 53.6 mm (2.1 in) |
| 1985 | 44.2 mm (1.7 in) |
| 1986 | 40.6 mm (1.6 in) |
| 1987 | 41.9 mm (1.6 in) |
| 1988 | 25.7 mm (1.0 in) |
| 1989 | 30.0 mm (1.2 in) |
| 1990 | 51.3 mm (2.0 in) |
| 1991 | 30.0 mm (1.2 in) |
| 1992 | 23.4 mm (0.9 in) |
| 1993 | 44.2 mm (1.7 in) |
| 1994 | 30.7 mm (1.2 in) |
| 1995 | 34.8 mm (1.4 in) |
| 1996 | 33.5 mm (1.3 in) |
| 1997 | 63.5 mm (2.5 in) |
| 1998 | 58.2 mm (2.3 in) |
| 1999 | 36.1 mm (1.4 in) |
| 2000 | 40.6 mm (1.6 in) |
| 2001 | 35.6 mm (1.4 in) |
| 2002 | 57.2 mm (2.3 in) |
| 2003 | 25.7 mm (1.0 in) |
| 2004 | 5.8 mm (0.23 in) |
| 2009 | 35.1 mm (1.4 in) |
| 2010 | 28.4 mm (1.1 in) |
| 2011 | 57.4 mm (2.3 in) |
| 2012 | 40.6 mm (1.6 in) |
| 2013 | 55.1 mm (2.2 in) |
| 2014 | 74.9 mm (2.9 in) |
| 2015 | 66.8 mm (2.6 in) |
| 2016 | 60.5 mm (2.4 in) |
| 2017 | 29.2 mm (1.1 in) |
| 2018 | 65.3 mm (2.6 in) |
| 2019 | 55.1 mm (2.2 in) |
| 2020 | 84.6 mm (3.3 in) |
| 2021 | 31.5 mm (1.2 in) |
| 2022 | 52.8 mm (2.1 in) |
| 2023 | 31.0 mm (1.2 in) |
| 2024 | 25.7 mm (1.0 in) |
| 2025 | 59.7 mm (2.4 in) |
| 2026 | 29.0 mm (1.1 in) |
Wettest five days (Rx5day)
| Year | Wettest five days (Rx5day) |
|---|---|
| 1918 | 69.9 mm (2.8 in) |
| 1919 | 38.1 mm (1.5 in) |
| 1920 | 57.7 mm (2.3 in) |
| 1921 | 138.7 mm (5.5 in) |
| 1922 | 63.4 mm (2.5 in) |
| 1923 | 75.9 mm (3.0 in) |
| 1924 | 69.3 mm (2.7 in) |
| 1925 | 42.4 mm (1.7 in) |
| 1926 | 44.0 mm (1.7 in) |
| 1927 | 100.8 mm (4.0 in) |
| 1928 | 123.6 mm (4.9 in) |
| 1929 | 99.1 mm (3.9 in) |
| 1930 | 50.8 mm (2.0 in) |
| 1931 | 64.3 mm (2.5 in) |
| 1932 | 39.9 mm (1.6 in) |
| 1933 | 64.5 mm (2.5 in) |
| 1934 | 51.5 mm (2.0 in) |
| 1935 | 101.1 mm (4.0 in) |
| 1936 | 20.3 mm (0.8 in) |
| 1937 | 76.0 mm (3.0 in) |
| 1938 | 60.5 mm (2.4 in) |
| 1939 | 52.4 mm (2.1 in) |
| 1940 | 64.5 mm (2.5 in) |
| 1941 | 107.2 mm (4.2 in) |
| 1942 | 78.7 mm (3.1 in) |
| 1943 | 80.4 mm (3.2 in) |
| 1944 | 76.7 mm (3.0 in) |
| 1945 | 47.0 mm (1.9 in) |
| 1946 | 45.3 mm (1.8 in) |
| 1947 | 144.0 mm (5.7 in) |
| 1948 | 87.6 mm (3.4 in) |
| 1949 | 55.1 mm (2.2 in) |
| 1950 | 41.0 mm (1.6 in) |
| 1951 | 46.0 mm (1.8 in) |
| 1952 | 37.1 mm (1.5 in) |
| 1953 | 99.0 mm (3.9 in) |
| 1954 | 48.8 mm (1.9 in) |
| 1955 | 40.4 mm (1.6 in) |
| 1956 | 59.8 mm (2.4 in) |
| 1957 | 84.1 mm (3.3 in) |
| 1958 | 62.0 mm (2.4 in) |
| 1959 | 79.0 mm (3.1 in) |
| 1960 | 63.2 mm (2.5 in) |
| 1961 | 51.8 mm (2.0 in) |
| 1962 | 90.1 mm (3.5 in) |
| 1963 | 51.0 mm (2.0 in) |
| 1964 | 95.2 mm (3.7 in) |
| 1965 | 100.5 mm (4.0 in) |
| 1966 | 55.9 mm (2.2 in) |
| 1967 | 68.8 mm (2.7 in) |
| 1968 | 69.4 mm (2.7 in) |
| 1969 | 71.9 mm (2.8 in) |
| 1970 | 94.5 mm (3.7 in) |
| 1971 | 85.3 mm (3.4 in) |
| 1972 | 84.2 mm (3.3 in) |
| 1973 | 42.2 mm (1.7 in) |
| 1974 | 51.0 mm (2.0 in) |
| 1975 | 81.2 mm (3.2 in) |
| 1976 | 53.0 mm (2.1 in) |
| 1977 | 54.9 mm (2.2 in) |
| 1978 | 54.9 mm (2.2 in) |
| 1979 | 38.3 mm (1.5 in) |
| 1980 | 58.5 mm (2.3 in) |
| 1981 | 64.0 mm (2.5 in) |
| 1982 | 96.0 mm (3.8 in) |
| 1983 | 51.1 mm (2.0 in) |
| 1984 | 80.0 mm (3.1 in) |
| 1985 | 44.7 mm (1.8 in) |
| 1986 | 76.3 mm (3.0 in) |
| 1987 | 62.2 mm (2.4 in) |
| 1988 | 29.3 mm (1.2 in) |
| 1989 | 36.1 mm (1.4 in) |
| 1990 | 67.1 mm (2.6 in) |
| 1991 | 67.4 mm (2.7 in) |
| 1992 | 47.8 mm (1.9 in) |
| 1993 | 74.7 mm (2.9 in) |
| 1994 | 56.9 mm (2.2 in) |
| 1995 | 66.4 mm (2.6 in) |
| 1996 | 57.2 mm (2.3 in) |
| 1997 | 78.0 mm (3.1 in) |
| 1998 | 88.9 mm (3.5 in) |
| 1999 | 76.8 mm (3.0 in) |
| 2000 | 63.0 mm (2.5 in) |
| 2001 | 66.1 mm (2.6 in) |
| 2002 | 127.1 mm (5.0 in) |
| 2003 | 39.7 mm (1.6 in) |
| 2004 | 3.3 mm (0.13 in) |
| 2009 | 51.9 mm (2.0 in) |
| 2010 | 66.5 mm (2.6 in) |
| 2011 | 72.3 mm (2.8 in) |
| 2012 | 41.1 mm (1.6 in) |
| 2013 | 107.4 mm (4.2 in) |
| 2014 | 102.6 mm (4.0 in) |
| 2015 | 117.3 mm (4.6 in) |
| 2016 | 87.3 mm (3.4 in) |
| 2017 | 57.7 mm (2.3 in) |
| 2018 | 104.9 mm (4.1 in) |
| 2019 | 113.8 mm (4.5 in) |
| 2020 | 115.8 mm (4.6 in) |
| 2021 | 72.4 mm (2.9 in) |
| 2022 | 57.6 mm (2.3 in) |
| 2023 | 57.2 mm (2.3 in) |
| 2024 | 35.2 mm (1.4 in) |
| 2025 | 100.8 mm (4.0 in) |
| 2026 | 33.5 mm (1.3 in) |
Longest dry spell (CDD)
| Year | Longest dry spell (CDD) |
|---|---|
| 1918 | 51 days |
| 1919 | 40 days |
| 1920 | 54 days |
| 1921 | 33 days |
| 1922 | 29 days |
| 1923 | 17 days |
| 1924 | 18 days |
| 1925 | 19 days |
| 1926 | 19 days |
| 1927 | 43 days |
| 1928 | 20 days |
| 1929 | 16 days |
| 1930 | 20 days |
| 1931 | 29 days |
| 1932 | 39 days |
| 1933 | 45 days |
| 1934 | 74 days |
| 1935 | 33 days |
| 1936 | 56 days |
| 1937 | 44 days |
| 1938 | 36 days |
| 1939 | 41 days |
| 1940 | 37 days |
| 1941 | 54 days |
| 1942 | 39 days |
| 1943 | 41 days |
| 1944 | 34 days |
| 1945 | 29 days |
| 1946 | 24 days |
| 1947 | 21 days |
| 1948 | 52 days |
| 1949 | 50 days |
| 1950 | 24 days |
| 1951 | 33 days |
| 1952 | 66 days |
| 1953 | 46 days |
| 1954 | 65 days |
| 1955 | 26 days |
| 1956 | 34 days |
| 1957 | 50 days |
| 1958 | 35 days |
| 1959 | 24 days |
| 1960 | 53 days |
| 1961 | 73 days |
| 1962 | 33 days |
| 1963 | 46 days |
| 1964 | 44 days |
| 1965 | 40 days |
| 1966 | 30 days |
| 1967 | 34 days |
| 1968 | 25 days |
| 1969 | 41 days |
| 1970 | 29 days |
| 1971 | 23 days |
| 1972 | 27 days |
| 1973 | 23 days |
| 1974 | 39 days |
| 1975 | 28 days |
| 1976 | 29 days |
| 1977 | 29 days |
| 1978 | 50 days |
| 1979 | 41 days |
| 1980 | 50 days |
| 1981 | 35 days |
| 1982 | 25 days |
| 1983 | 34 days |
| 1984 | 42 days |
| 1985 | 55 days |
| 1986 | 43 days |
| 1987 | 46 days |
| 1988 | 37 days |
| 1989 | 53 days |
| 1990 | 45 days |
| 1991 | 29 days |
| 1992 | 22 days |
| 1993 | 37 days |
| 1994 | 25 days |
| 1995 | 22 days |
| 1996 | 17 days |
| 1997 | 24 days |
| 1998 | 28 days |
| 1999 | 58 days |
| 2000 | 38 days |
| 2001 | 69 days |
| 2002 | 32 days |
| 2003 | 41 days |
| 2004 | 18 days |
| 2009 | 37 days |
| 2010 | 29 days |
| 2011 | 26 days |
| 2012 | 31 days |
| 2013 | 26 days |
| 2014 | 17 days |
| 2015 | 15 days |
| 2016 | 20 days |
| 2017 | 19 days |
| 2018 | 14 days |
| 2019 | 16 days |
| 2020 | 18 days |
| 2021 | 29 days |
| 2022 | 20 days |
| 2023 | 37 days |
| 2024 | 28 days |
| 2025 | 24 days |
| 2026 | 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
82 years with a frostAcross 82 years with a frost, the median last spring frost at Dunn Ctr 1E falls on 18 May and the median first autumn frost on 18 September, which leaves a median of 123 days between them.
In 1981 to 2025 the median growing season was 124 days. That is 10 days more than in 1920 to 1956.
Fitted over all years, the growing season changes by +1.0 days per decade at this station.
| Measure | Median, all years | Earliest period (1920 to 1956) | Recent period (1981 to 2025) | Recent against earliest | Fitted trend |
|---|---|---|---|---|---|
| Last spring frost | 18 May | 21 May | 17 May | 4 days earlier | -0.2 days per decade |
| First autumn frost | 18 September | 14 September | 20 September | 6 days later | +0.8 days per decade |
| Growing days | 123 days | 114 days | 124 days | 10 days more | +1.0 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
75 years, 1920 to 2017A day with at least 41.5 mm (1.6 in) of rain is expected about once in 2 years. A day with at least 104.6 mm (4.1 in) of rain is expected about once in 100 years.
| Expected about once in | A day with at least | Note |
|---|---|---|
| 2 years | 41.5 mm (1.6 in) | |
| 5 years | 56.6 mm (2.2 in) | |
| 10 years | 67.3 mm (2.6 in) | |
| 25 years | 81.6 mm (3.2 in) | |
| 50 years | 92.9 mm (3.7 in) | |
| 100 years | 104.6 mm (4.1 in) | Longer than the 75 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, 75 years of values from 1920 to 2017.
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: 94.7 mm (3.7 in) in 1964; 87.6 mm (3.4 in) in 1948; 87.1 mm (3.4 in) in 1927.
Station Changes
2 suspected2 changes were suspected in the annual mean temperature of Dunn Ctr 1E, at 1962 and 1986. Each is measured against neighbouring stations.
- Relative to 5 neighbouring stations, the station's annual mean temperature from 1962 ran 0.4 C (0.7 F) lower than in the years before (likely change).
- Relative to 5 neighbouring stations, the station's annual mean temperature from 1986 ran 0.6 C (1.1 F) higher than in the years before (likely change).
| Year | Shift (C) | Shift (F) | Strength | Neighbours |
|---|---|---|---|---|
| 1962 | -0.4 | -0.7 | likely | 5 |
| 1986 | +0.6 | +1.1 | likely | 5 |
Possible change at the station (a move, a new instrument or a new site); the record is kept as measured. A "likely" change has a larger test statistic than a "possible" one. Neither says why the station differs from its neighbours. How changes are found, and the largest ones.
Download the Data
Source: NOAA National Centers for Environmental Information, Global Historical Climatology Network Daily (GHCN-Daily). Records are computed by World Extreme Weather Monitor and are not official NOAA products. (US Government open data (NOAA NCEI)) Data as of 2026-10-14 (14 October 2026). Records are computed by this site and are not official.
Data as of . Last revised (2026-10-14).