Dickinson Theodore Roosevelt R Weather Records (USW00024012)
Record envelope, standing records and threshold days for Dickinson Theodore Roosevelt R (USW00024012), North Dakota, United States, with 89 years of record.
Key Facts for Dickinson Theodore Roosevelt R
- Dickinson Theodore Roosevelt R (USW00024012) is a weather station in North Dakota, United States at 46.80 latitude and -102.80 longitude, 787 m (2,583 ft) above sea level.
- The station reports from 1938 to 2026, 89 years of record.
- 1,464 records set at Dickinson Theodore Roosevelt R still stand.
- Records are tracked for tmax, tmin, prcp, snow, snwd: an element needs 30 years of data to be eligible.
- Dickinson Theodore Roosevelt R set a daily record precipitation of 30.2 mm (1.2 in) on 28 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, 46.80 latitude, -102.80 longitude.
- Elevation: 787 m (2,583 ft).
- Period of record: 1938 to 2026, 89 years.
- Eligible elements: tmax, tmin, prcp, snow, snwd.
Daily Record Envelope and 2026
14 days at or beyond a record| Month | Highest record high | Lowest record low | 2026 highest maximum | 2026 lowest minimum |
|---|---|---|---|---|
| Jan | 17.2 C (63.0 F) | -37.2 C (-35.0 F) | 11.1 C (52.0 F) | -31.7 C (-25.1 F) |
| Feb | 20.0 C (68.0 F) | -37.7 C (-35.9 F) | 15.0 C (59.0 F) | -21.7 C (-7.1 F) |
| Mar | 26.7 C (80.1 F) | -33.3 C (-27.9 F) | 23.9 C (75.0 F) | -21.7 C (-7.1 F) |
| Apr | 34.4 C (93.9 F) | -23.3 C (-9.9 F) | 30.0 C (86.0 F) | -10.0 C (14.0 F) |
| May | 37.2 C (99.0 F) | -15.6 C (3.9 F) | 32.2 C (90.0 F) | -6.7 C (19.9 F) |
| Jun | 40.0 C (104.0 F) | -1.1 C (30.0 F) | 32.8 C (91.0 F) | 3.3 C (37.9 F) |
| Jul | 42.8 C (109.0 F) | 1.7 C (35.1 F) | 40.6 C (105.1 F) | 10.6 C (51.1 F) |
| Aug | 42.2 C (108.0 F) | 0.0 C (32.0 F) | 38.9 C (102.0 F) | 5.6 C (42.1 F) |
| Sep | 40.0 C (104.0 F) | -8.3 C (17.1 F) | 34.4 C (93.9 F) | 4.4 C (39.9 F) |
| Oct | 35.0 C (95.0 F) | -21.7 C (-7.1 F) | 29.4 C (84.9 F) | -0.6 C (30.9 F) |
| Nov | 26.7 C (80.1 F) | -27.8 C (-18.0 F) | n/a | n/a |
| Dec | 20.0 C (68.0 F) | -36.7 C (-34.1 F) | n/a | n/a |
Which Years Hold Standing Records
1,464 standing records| Year set | Standing records |
|---|---|
| 1948 | 13 |
| 1949 | 28 |
| 1950 | 28 |
| 1951 | 30 |
| 1952 | 14 |
| 1953 | 12 |
| 1954 | 24 |
| 1955 | 25 |
| 1956 | 14 |
| 1957 | 10 |
| 1958 | 20 |
| 1959 | 18 |
| 1960 | 15 |
| 1961 | 10 |
| 1962 | 19 |
| 1963 | 30 |
| 1964 | 12 |
| 1965 | 22 |
| 1966 | 17 |
| 1967 | 17 |
| 1968 | 16 |
| 1969 | 14 |
| 1970 | 8 |
| 1971 | 15 |
| 1972 | 28 |
| 1973 | 11 |
| 1974 | 16 |
| 1975 | 16 |
| 1976 | 15 |
| 1977 | 27 |
| 1978 | 16 |
| 1979 | 17 |
| 1980 | 27 |
| 1981 | 24 |
| 1982 | 12 |
| 1983 | 29 |
| 1984 | 24 |
| 1985 | 38 |
| 1986 | 19 |
| 1987 | 23 |
| 1988 | 42 |
| 1989 | 24 |
| 1990 | 10 |
| 1991 | 23 |
| 1992 | 30 |
| 1993 | 16 |
| 1994 | 17 |
| 1995 | 22 |
| 1996 | 25 |
| 1997 | 20 |
| 1998 | 15 |
| 1999 | 10 |
| 2000 | 16 |
| 2001 | 11 |
| 2002 | 32 |
| 2003 | 20 |
| 2004 | 14 |
| 2005 | 14 |
| 2006 | 9 |
| 2007 | 14 |
| 2008 | 10 |
| 2009 | 21 |
| 2010 | 3 |
| 2011 | 13 |
| 2012 | 29 |
| 2013 | 3 |
| 2014 | 16 |
| 2015 | 19 |
| 2016 | 5 |
| 2017 | 18 |
| 2018 | 9 |
| 2019 | 12 |
| 2020 | 23 |
| 2021 | 23 |
| 2022 | 22 |
| 2023 | 16 |
| 2024 | 25 |
| 2025 | 23 |
| 2026 | 17 |
All-Time Record Progression
8 new records| Date | Kind | Detail |
|---|---|---|
| 1981-07-07 | Record high maximum temperature | Record high maximum temperature 42.8 C (109.0 F) |
| 1983-07-26 | Record high minimum temperature | Record high minimum temperature 23.3 C (73.9 F) |
| 1984-04-27 | Record daily snowfall | Record daily snowfall 28.4 cm (11.2 in) |
| 1988-06-23 | Record high minimum temperature | Record high minimum temperature 24.4 C (75.9 F) |
| 1989-12-21 | Record low maximum temperature | Record low maximum temperature -30.6 C (-23.1 F) |
| 1998-06-18 | Record daily precipitation | Record daily precipitation 79.2 mm (3.1 in) |
| 2007-07-18 | Record daily precipitation | Record daily precipitation 81.0 mm (3.2 in) |
| 2025-02-18 | Record low minimum temperature | Record low minimum temperature -37.7 C (-35.9 F) |
Wettest Day of Each Month
Jul: 81.0 mm (3.2 in)| Month | Record daily precipitation (mm) | Date |
|---|---|---|
| Jan | 17.8 mm (0.7 in) | 8 January 1949 |
| Feb | 24.4 mm (1.0 in) | 26 February 1958 |
| Mar | 42.9 mm (1.7 in) | 17 March 2003 |
| Apr | 58.2 mm (2.3 in) | 26 April 1989 |
| May | 67.8 mm (2.7 in) | 8 May 1970 |
| Jun | 79.2 mm (3.1 in) | 18 June 1998 |
| Jul | 81.0 mm (3.2 in) | 18 July 2007 |
| Aug | 74.9 mm (2.9 in) | 23 August 1995 |
| Sep | 62.0 mm (2.4 in) | 10 September 2003 |
| Oct | 58.7 mm (2.3 in) | 4 October 1998 |
| Nov | 46.2 mm (1.8 in) | 1 November 2000 |
| Dec | 11.2 mm (0.4 in) | 29 December 1972 |
Period of Record Coverage
1948 to 2026| Year | Days with data | Share of year | Complete |
|---|---|---|---|
| 1948 | 182 | 50% | No |
| 1949 | 347 | 95% | Yes |
| 1950 | 364 | 100% | Yes |
| 1951 | 365 | 100% | Yes |
| 1952 | 366 | 100% | Yes |
| 1953 | 364 | 100% | Yes |
| 1954 | 365 | 100% | Yes |
| 1955 | 364 | 100% | Yes |
| 1956 | 364 | 99% | Yes |
| 1957 | 365 | 100% | Yes |
| 1958 | 364 | 100% | Yes |
| 1959 | 363 | 99% | Yes |
| 1960 | 366 | 100% | Yes |
| 1961 | 365 | 100% | Yes |
| 1962 | 365 | 100% | Yes |
| 1963 | 365 | 100% | Yes |
| 1964 | 366 | 100% | Yes |
| 1965 | 365 | 100% | Yes |
| 1966 | 365 | 100% | Yes |
| 1967 | 365 | 100% | Yes |
| 1968 | 366 | 100% | Yes |
| 1969 | 365 | 100% | Yes |
| 1970 | 365 | 100% | Yes |
| 1971 | 365 | 100% | Yes |
| 1972 | 366 | 100% | Yes |
| 1973 | 365 | 100% | Yes |
| 1974 | 364 | 100% | Yes |
| 1975 | 365 | 100% | Yes |
| 1976 | 366 | 100% | Yes |
| 1977 | 365 | 100% | Yes |
| 1978 | 365 | 100% | Yes |
| 1979 | 365 | 100% | Yes |
| 1980 | 366 | 100% | Yes |
| 1981 | 365 | 100% | Yes |
| 1982 | 365 | 100% | Yes |
| 1983 | 364 | 100% | Yes |
| 1984 | 366 | 100% | Yes |
| 1985 | 360 | 99% | Yes |
| 1986 | 365 | 100% | Yes |
| 1987 | 365 | 100% | Yes |
| 1988 | 366 | 100% | Yes |
| 1989 | 364 | 100% | Yes |
| 1990 | 365 | 100% | Yes |
| 1991 | 365 | 100% | Yes |
| 1992 | 366 | 100% | Yes |
| 1993 | 365 | 100% | Yes |
| 1994 | 365 | 100% | Yes |
| 1995 | 365 | 100% | Yes |
| 1996 | 366 | 100% | Yes |
| 1997 | 364 | 100% | Yes |
| 1998 | 365 | 100% | Yes |
| 1999 | 365 | 100% | Yes |
| 2000 | 366 | 100% | Yes |
| 2001 | 364 | 100% | Yes |
| 2002 | 365 | 100% | Yes |
| 2003 | 364 | 100% | Yes |
| 2004 | 366 | 100% | Yes |
| 2005 | 365 | 100% | Yes |
| 2006 | 365 | 100% | Yes |
| 2007 | 365 | 100% | Yes |
| 2008 | 366 | 100% | Yes |
| 2009 | 365 | 100% | Yes |
| 2010 | 362 | 99% | Yes |
| 2011 | 365 | 100% | Yes |
| 2012 | 366 | 100% | Yes |
| 2013 | 163 | 45% | No |
| 2014 | 365 | 100% | Yes |
| 2015 | 365 | 100% | Yes |
| 2016 | 365 | 100% | Yes |
| 2017 | 365 | 100% | Yes |
| 2018 | 365 | 100% | Yes |
| 2019 | 365 | 100% | Yes |
| 2020 | 366 | 100% | Yes |
| 2021 | 365 | 100% | Yes |
| 2022 | 364 | 100% | Yes |
| 2023 | 365 | 100% | Yes |
| 2024 | 365 | 100% | Yes |
| 2025 | 364 | 100% | Yes |
| 2026 | 280 | 77% | No |
Latest Records
20| Date | Station | Record | Value | Beat old record by | Old record stood | Significance |
|---|---|---|---|---|---|---|
| 28 September 2026 | Dickinson Theodore Roosevelt R, US | daily rain (Provisional) | 30.2 mm (1.2 in) | 18.0 mm (0.7 in) | 40 years | 41 of 100 (Notable) |
| 28 September 2026 | Dickinson Theodore Roosevelt R, US | daily high min (Provisional) | 13.3 C (55.9 F) | 2.2 C (4.0 F) | 64 years | 32 of 100 (Routine) |
| 23 September 2026 | Dickinson Theodore Roosevelt R, US | daily high min (Provisional) | 13.3 C (55.9 F) | 1.1 C (2.0 F) | 77 years | 33 of 100 (Routine) |
| 23 September 2026 | Dickinson Theodore Roosevelt R, US | daily rain (Provisional) | 45.2 mm (1.8 in) | 6.6 mm (0.26 in) | 9 years | 17 of 100 (Routine) |
| 19 September 2026 | Dickinson Theodore Roosevelt R, US | daily high min (Tie, Provisional) | 13.9 C (57.0 F) | tie | 41 years | 5 of 100 (Routine) |
| 18 September 2026 | Dickinson Theodore Roosevelt R, US | daily high min (Tie, Provisional) | 14.4 C (57.9 F) | tie | 28 years | 4 of 100 (Routine) |
| 14 August 2026 | Dickinson Theodore Roosevelt R, US | daily rain | 37.8 mm (1.5 in) | 17.7 mm (0.7 in) | 1 year | 28 of 100 (Routine) |
| 7 August 2026 | Dickinson Theodore Roosevelt R, US | daily low min (Tie) | 6.7 C (44.1 F) | tie | 72 years | 7 of 100 (Routine) |
| 1 August 2026 | Dickinson Theodore Roosevelt R, US | daily high max | 38.9 C (102.0 F) | 1.1 C (2.0 F) | 61 years | 27 of 100 (Routine) |
| 26 July 2026 | Dickinson Theodore Roosevelt R, US | daily high max | 38.3 C (100.9 F) | 0.5 C (0.9 F) | 37 years | 19 of 100 (Routine) |
| 19 July 2026 | Dickinson Theodore Roosevelt R, US | daily high max (Tie) | 38.9 C (102.0 F) | tie | 13 years | 2 of 100 (Routine) |
| 14 July 2026 | Dickinson Theodore Roosevelt R, US | daily high min (Tie) | 18.9 C (66.0 F) | tie | 67 years | 7 of 100 (Routine) |
| 13 July 2026 | Dickinson Theodore Roosevelt R, US | daily high min | 21.1 C (70.0 F) | 2.2 C (4.0 F) | 44 years | 27 of 100 (Routine) |
| 13 July 2026 | Dickinson Theodore Roosevelt R, US | daily high max (Tie) | 39.4 C (102.9 F) | tie | 23 years | 3 of 100 (Routine) |
| 12 July 2026 | Dickinson Theodore Roosevelt R, US | daily high max | 40.6 C (105.1 F) | 0.6 C (1.1 F) | 20 years | 14 of 100 (Routine) |
| 11 July 2026 | Dickinson Theodore Roosevelt R, US | daily high max (Tie) | 37.8 C (100.0 F) | tie | 40 years | 4 of 100 (Routine) |
| 29 May 2026 | Dickinson Theodore Roosevelt R, US | daily high min | 16.1 C (61.0 F) | 1.1 C (2.0 F) | 68 years | 30 of 100 (Routine) |
| 27 May 2026 | Dickinson Theodore Roosevelt R, US | daily high min | 15.0 C (59.0 F) | 0.6 C (1.1 F) | 12 years | 12 of 100 (Routine) |
| 26 May 2026 | Dickinson Theodore Roosevelt R, US | daily high min | 13.9 C (57.0 F) | 0.6 C (1.1 F) | 12 years | 12 of 100 (Routine) |
| 25 May 2026 | Dickinson Theodore Roosevelt R, US | daily high max | 31.1 C (88.0 F) | 0.5 C (0.9 F) | 8 years | 9 of 100 (Routine) |
Climate Trend
75 complete years, 1950 to 2025| Year | Annual mean temperature | Difference from the station mean |
|---|---|---|
| 1950 | 2.7 C | -3.12 C |
| 1951 | 2.8 C | -3.02 C |
| 1952 | 5.6 C | -0.18 C |
| 1953 | 6.6 C | +0.76 C |
| 1954 | 5.9 C | +0.09 C |
| 1955 | 4.8 C | -1.04 C |
| 1956 | 5.6 C | -0.22 C |
| 1957 | 5.3 C | -0.55 C |
| 1958 | 5.9 C | +0.07 C |
| 1959 | 5.1 C | -0.67 C |
| 1960 | 5.7 C | -0.13 C |
| 1961 | 6.5 C | +0.72 C |
| 1962 | 6.0 C | +0.21 C |
| 1963 | 7.0 C | +1.15 C |
| 1964 | 5.7 C | -0.08 C |
| 1965 | 5.3 C | -0.50 C |
| 1966 | 5.0 C | -0.82 C |
| 1967 | 5.2 C | -0.65 C |
| 1968 | 5.1 C | -0.67 C |
| 1969 | 4.6 C | -1.21 C |
| 1970 | 4.3 C | -1.53 C |
| 1971 | 4.3 C | -1.50 C |
| 1972 | 3.4 C | -2.37 C |
| 1973 | 5.8 C | -0.04 C |
| 1974 | 5.8 C | -0.06 C |
| 1975 | 4.7 C | -1.13 C |
| 1976 | 6.9 C | +1.09 C |
| 1977 | 5.9 C | +0.08 C |
| 1978 | 5.0 C | -0.85 C |
| 1979 | 5.1 C | -0.69 C |
| 1980 | 7.3 C | +1.52 C |
| 1981 | 8.0 C | +2.23 C |
| 1982 | 4.7 C | -1.07 C |
| 1983 | 7.2 C | +1.36 C |
| 1984 | 7.2 C | +1.34 C |
| 1985 | 5.4 C | -0.39 C |
| 1986 | 6.1 C | +0.33 C |
| 1987 | 8.1 C | +2.32 C |
| 1988 | 7.5 C | +1.66 C |
| 1989 | 5.4 C | -0.46 C |
| 1990 | 6.8 C | +0.99 C |
| 1991 | 6.9 C | +1.11 C |
| 1992 | 6.5 C | +0.65 C |
| 1993 | 4.3 C | -1.49 C |
| 1994 | 5.5 C | -0.35 C |
| 1995 | 5.4 C | -0.40 C |
| 1996 | 3.8 C | -2.06 C |
| 1997 | 6.5 C | +0.70 C |
| 1998 | 7.4 C | +1.62 C |
| 1999 | 7.6 C | +1.76 C |
| 2000 | 6.2 C | +0.37 C |
| 2001 | 6.7 C | +0.88 C |
| 2002 | 5.6 C | -0.26 C |
| 2003 | 5.7 C | -0.12 C |
| 2004 | 5.7 C | -0.10 C |
| 2005 | 6.1 C | +0.32 C |
| 2006 | 7.2 C | +1.39 C |
| 2007 | 6.8 C | +1.03 C |
| 2008 | 5.4 C | -0.40 C |
| 2009 | 3.9 C | -1.94 C |
| 2010 | 4.8 C | -0.98 C |
| 2011 | 5.2 C | -0.66 C |
| 2012 | 7.6 C | +1.81 C |
| 2014 | 4.9 C | -0.94 C |
| 2015 | 7.3 C | +1.47 C |
| 2016 | 6.9 C | +1.07 C |
| 2017 | 6.1 C | +0.27 C |
| 2018 | 5.2 C | -0.59 C |
| 2019 | 4.2 C | -1.57 C |
| 2020 | 7.0 C | +1.16 C |
| 2021 | 7.6 C | +1.79 C |
| 2022 | 5.4 C | -0.43 C |
| 2023 | 6.5 C | +0.64 C |
| 2024 | 7.2 C | +1.37 C |
| 2025 | 6.1 C | +0.28 C |
The annual mean temperature here has risen by 0.16 C (0.04 to 0.28) per decade over 1950 to 2025. In Fahrenheit: 0.3 F (0.1 to 0.5) per decade. The slope is a straight line fitted to 75 complete years; the brackets give its 95 percent interval.
| Measure | Per decade (C) | Per decade (F) | Period | Complete years | Reading |
|---|---|---|---|---|---|
| Annual mean temperature | 0.16 C (0.04 to 0.28) per decade | 0.3 F (0.1 to 0.5) per decade | 1950 to 2025 | 75 | Rise |
| Mean daily maximum | 0.2 C (0.1 to 0.4) per decade | 0.4 F (0.1 to 0.6) per decade | 1950 to 2025 | 75 | Rise |
| Mean daily minimum | 0.11 C (0.00 to 0.21) per decade | 0.19 F (0.00 to 0.39) per decade | 1950 to 2025 | 75 | Not clearly different from zero |
A year is complete when all 12 months have at least 20 days of both daily maximum and daily minimum readings. The annual mean is the mean of the monthly means. The trend describes this one station over this period; it does not say what caused the change.
Extremes by Year
1938 to 2026| Measure | Record | Year of the record | Median year | Years with a value |
|---|---|---|---|---|
| Hottest day (TXx) | 42.8 C (109.0 F) | 1981 | 37.8 C (100.0 F) | 79 |
| Coldest night (TNn) | -37.7 C (-35.9 F) | 2025 | -31.9 C (-25.5 F) | 80 |
| Wettest day (Rx1day) | 81.0 mm (3.2 in) | 2007 | 40.5 mm (1.6 in) | 80 |
| Wettest five days (Rx5day) | 119.5 mm (4.7 in) | 2025 | 63.7 mm (2.5 in) | 79 |
| Longest dry spell (CDD) | 81 days | 1981 | 37 days | 80 |
Hottest day (TXx)
| Year | Hottest day (TXx) |
|---|---|
| 1938 | n/a |
| 1948 | 38.9 C (102.0 F) |
| 1949 | 42.2 C (108.0 F) |
| 1950 | 35.6 C (96.1 F) |
| 1951 | 37.8 C (100.0 F) |
| 1952 | 38.9 C (102.0 F) |
| 1953 | 34.4 C (93.9 F) |
| 1954 | 37.8 C (100.0 F) |
| 1955 | 38.3 C (100.9 F) |
| 1956 | 37.2 C (99.0 F) |
| 1957 | 38.9 C (102.0 F) |
| 1958 | 37.8 C (100.0 F) |
| 1959 | 38.3 C (100.9 F) |
| 1960 | 40.6 C (105.1 F) |
| 1961 | 37.8 C (100.0 F) |
| 1962 | 36.7 C (98.1 F) |
| 1963 | 36.1 C (97.0 F) |
| 1964 | 37.8 C (100.0 F) |
| 1965 | 37.8 C (100.0 F) |
| 1966 | 36.7 C (98.1 F) |
| 1967 | 36.7 C (98.1 F) |
| 1968 | 36.1 C (97.0 F) |
| 1969 | 37.2 C (99.0 F) |
| 1970 | 37.2 C (99.0 F) |
| 1971 | 37.8 C (100.0 F) |
| 1972 | 36.1 C (97.0 F) |
| 1973 | 37.8 C (100.0 F) |
| 1974 | 37.8 C (100.0 F) |
| 1975 | 38.9 C (102.0 F) |
| 1976 | 39.4 C (102.9 F) |
| 1977 | 37.8 C (100.0 F) |
| 1978 | 40.0 C (104.0 F) |
| 1979 | 40.0 C (104.0 F) |
| 1980 | 40.0 C (104.0 F) |
| 1981 | 42.8 C (109.0 F) |
| 1982 | 36.1 C (97.0 F) |
| 1983 | 40.0 C (104.0 F) |
| 1984 | 38.3 C (100.9 F) |
| 1985 | 40.0 C (104.0 F) |
| 1986 | 36.1 C (97.0 F) |
| 1987 | 35.6 C (96.1 F) |
| 1988 | 41.1 C (106.0 F) |
| 1989 | 41.7 C (107.1 F) |
| 1990 | 37.2 C (99.0 F) |
| 1991 | 39.4 C (102.9 F) |
| 1992 | 38.3 C (100.9 F) |
| 1993 | 32.8 C (91.0 F) |
| 1994 | 38.3 C (100.9 F) |
| 1995 | 37.2 C (99.0 F) |
| 1996 | 37.8 C (100.0 F) |
| 1997 | 37.8 C (100.0 F) |
| 1998 | 37.2 C (99.0 F) |
| 1999 | 40.0 C (104.0 F) |
| 2000 | 38.9 C (102.0 F) |
| 2001 | 39.4 C (102.9 F) |
| 2002 | 38.9 C (102.0 F) |
| 2003 | 39.4 C (102.9 F) |
| 2004 | 37.8 C (100.0 F) |
| 2005 | 35.6 C (96.1 F) |
| 2006 | 40.0 C (104.0 F) |
| 2007 | 41.1 C (106.0 F) |
| 2008 | 38.3 C (100.9 F) |
| 2009 | 35.6 C (96.1 F) |
| 2010 | 36.7 C (98.1 F) |
| 2011 | 35.6 C (96.1 F) |
| 2012 | 40.6 C (105.1 F) |
| 2013 | 31.7 C (89.1 F) |
| 2014 | 33.9 C (93.0 F) |
| 2015 | 38.9 C (102.0 F) |
| 2016 | 36.7 C (98.1 F) |
| 2017 | 40.0 C (104.0 F) |
| 2018 | 40.0 C (104.0 F) |
| 2019 | 34.4 C (93.9 F) |
| 2020 | 37.2 C (99.0 F) |
| 2021 | 39.4 C (102.9 F) |
| 2022 | 38.9 C (102.0 F) |
| 2023 | 36.1 C (97.0 F) |
| 2024 | 42.2 C (108.0 F) |
| 2025 | 37.2 C (99.0 F) |
| 2026 | 40.6 C (105.1 F) |
Coldest night (TNn)
| Year | Coldest night (TNn) |
|---|---|
| 1938 | -17.2 C (1.0 F) |
| 1948 | -27.8 C (-18.0 F) |
| 1949 | -36.7 C (-34.1 F) |
| 1950 | -37.2 C (-35.0 F) |
| 1951 | -33.3 C (-27.9 F) |
| 1952 | -31.7 C (-25.1 F) |
| 1953 | -29.4 C (-20.9 F) |
| 1954 | -36.1 C (-33.0 F) |
| 1955 | -32.8 C (-27.0 F) |
| 1956 | -28.9 C (-20.0 F) |
| 1957 | -33.9 C (-29.0 F) |
| 1958 | -26.7 C (-16.1 F) |
| 1959 | -30.0 C (-22.0 F) |
| 1960 | -28.3 C (-18.9 F) |
| 1961 | -29.4 C (-20.9 F) |
| 1962 | -37.2 C (-35.0 F) |
| 1963 | -33.3 C (-27.9 F) |
| 1964 | -31.7 C (-25.1 F) |
| 1965 | -30.0 C (-22.0 F) |
| 1966 | -37.2 C (-35.0 F) |
| 1967 | -33.9 C (-29.0 F) |
| 1968 | -33.3 C (-27.9 F) |
| 1969 | -32.2 C (-26.0 F) |
| 1970 | -36.7 C (-34.1 F) |
| 1971 | -34.4 C (-29.9 F) |
| 1972 | -35.6 C (-32.1 F) |
| 1973 | -33.3 C (-27.9 F) |
| 1974 | -34.4 C (-29.9 F) |
| 1975 | -30.0 C (-22.0 F) |
| 1976 | -32.2 C (-26.0 F) |
| 1977 | -34.4 C (-29.9 F) |
| 1978 | -32.8 C (-27.0 F) |
| 1979 | -31.7 C (-25.1 F) |
| 1980 | -30.6 C (-23.1 F) |
| 1981 | -28.3 C (-18.9 F) |
| 1982 | -33.9 C (-29.0 F) |
| 1983 | -33.9 C (-29.0 F) |
| 1984 | -30.0 C (-22.0 F) |
| 1985 | -30.0 C (-22.0 F) |
| 1986 | -32.8 C (-27.0 F) |
| 1987 | -22.2 C (-8.0 F) |
| 1988 | -33.3 C (-27.9 F) |
| 1989 | -36.7 C (-34.1 F) |
| 1990 | -36.1 C (-33.0 F) |
| 1991 | -30.6 C (-23.1 F) |
| 1992 | -32.8 C (-27.0 F) |
| 1993 | -32.2 C (-26.0 F) |
| 1994 | -35.0 C (-31.0 F) |
| 1995 | -29.4 C (-20.9 F) |
| 1996 | -34.4 C (-29.9 F) |
| 1997 | -31.1 C (-24.0 F) |
| 1998 | -32.2 C (-26.0 F) |
| 1999 | -29.4 C (-20.9 F) |
| 2000 | -28.3 C (-18.9 F) |
| 2001 | -28.3 C (-18.9 F) |
| 2002 | -28.9 C (-20.0 F) |
| 2003 | -31.1 C (-24.0 F) |
| 2004 | -31.1 C (-24.0 F) |
| 2005 | -33.9 C (-29.0 F) |
| 2006 | -29.4 C (-20.9 F) |
| 2007 | -29.4 C (-20.9 F) |
| 2008 | -31.7 C (-25.1 F) |
| 2009 | -32.8 C (-27.0 F) |
| 2010 | -32.8 C (-27.0 F) |
| 2011 | -31.1 C (-24.0 F) |
| 2012 | -25.6 C (-14.1 F) |
| 2013 | -28.3 C (-18.9 F) |
| 2014 | -28.8 C (-19.8 F) |
| 2015 | -27.1 C (-16.8 F) |
| 2016 | -31.6 C (-24.9 F) |
| 2017 | -34.9 C (-30.8 F) |
| 2018 | -34.9 C (-30.8 F) |
| 2019 | -33.2 C (-27.8 F) |
| 2020 | -29.9 C (-21.8 F) |
| 2021 | -34.3 C (-29.7 F) |
| 2022 | -31.6 C (-24.9 F) |
| 2023 | -31.0 C (-23.8 F) |
| 2024 | -36.0 C (-32.8 F) |
| 2025 | -37.7 C (-35.9 F) |
| 2026 | -31.7 C (-25.1 F) |
Wettest day (Rx1day)
| Year | Wettest day (Rx1day) |
|---|---|
| 1938 | 0.0 mm (0.00 in) |
| 1948 | 29.0 mm (1.1 in) |
| 1949 | 31.0 mm (1.2 in) |
| 1950 | 20.1 mm (0.8 in) |
| 1951 | 30.7 mm (1.2 in) |
| 1952 | 25.4 mm (1.0 in) |
| 1953 | 35.3 mm (1.4 in) |
| 1954 | 54.9 mm (2.2 in) |
| 1955 | 45.7 mm (1.8 in) |
| 1956 | 40.9 mm (1.6 in) |
| 1957 | 78.5 mm (3.1 in) |
| 1958 | 35.8 mm (1.4 in) |
| 1959 | 37.3 mm (1.5 in) |
| 1960 | 24.4 mm (1.0 in) |
| 1961 | 40.9 mm (1.6 in) |
| 1962 | 42.2 mm (1.7 in) |
| 1963 | 28.4 mm (1.1 in) |
| 1964 | 53.6 mm (2.1 in) |
| 1965 | 37.8 mm (1.5 in) |
| 1966 | 40.1 mm (1.6 in) |
| 1967 | 44.5 mm (1.8 in) |
| 1968 | 71.6 mm (2.8 in) |
| 1969 | 49.0 mm (1.9 in) |
| 1970 | 67.8 mm (2.7 in) |
| 1971 | 41.1 mm (1.6 in) |
| 1972 | 31.8 mm (1.3 in) |
| 1973 | 32.8 mm (1.3 in) |
| 1974 | 29.7 mm (1.2 in) |
| 1975 | 31.2 mm (1.2 in) |
| 1976 | 24.1 mm (0.9 in) |
| 1977 | 37.6 mm (1.5 in) |
| 1978 | 49.3 mm (1.9 in) |
| 1979 | 35.1 mm (1.4 in) |
| 1980 | 34.0 mm (1.3 in) |
| 1981 | 48.5 mm (1.9 in) |
| 1982 | 40.6 mm (1.6 in) |
| 1983 | 29.2 mm (1.1 in) |
| 1984 | 51.3 mm (2.0 in) |
| 1985 | 50.3 mm (2.0 in) |
| 1986 | 62.5 mm (2.5 in) |
| 1987 | 35.1 mm (1.4 in) |
| 1988 | 30.7 mm (1.2 in) |
| 1989 | 58.2 mm (2.3 in) |
| 1990 | 29.7 mm (1.2 in) |
| 1991 | 41.1 mm (1.6 in) |
| 1992 | 40.9 mm (1.6 in) |
| 1993 | 43.4 mm (1.7 in) |
| 1994 | 46.7 mm (1.8 in) |
| 1995 | 74.9 mm (2.9 in) |
| 1996 | 26.4 mm (1.0 in) |
| 1997 | 64.8 mm (2.6 in) |
| 1998 | 79.2 mm (3.1 in) |
| 1999 | 50.3 mm (2.0 in) |
| 2000 | 46.2 mm (1.8 in) |
| 2001 | 45.2 mm (1.8 in) |
| 2002 | 35.6 mm (1.4 in) |
| 2003 | 62.0 mm (2.4 in) |
| 2004 | 53.3 mm (2.1 in) |
| 2005 | 38.6 mm (1.5 in) |
| 2006 | 31.2 mm (1.2 in) |
| 2007 | 81.0 mm (3.2 in) |
| 2008 | 21.8 mm (0.9 in) |
| 2009 | 32.5 mm (1.3 in) |
| 2010 | 35.3 mm (1.4 in) |
| 2011 | 41.9 mm (1.6 in) |
| 2012 | 23.1 mm (0.9 in) |
| 2013 | 32.5 mm (1.3 in) |
| 2014 | 67.8 mm (2.7 in) |
| 2015 | 34.3 mm (1.4 in) |
| 2016 | 41.4 mm (1.6 in) |
| 2017 | 42.4 mm (1.7 in) |
| 2018 | 50.3 mm (2.0 in) |
| 2019 | 40.4 mm (1.6 in) |
| 2020 | 24.1 mm (0.9 in) |
| 2021 | 39.9 mm (1.6 in) |
| 2022 | 38.4 mm (1.5 in) |
| 2023 | 41.1 mm (1.6 in) |
| 2024 | 24.6 mm (1.0 in) |
| 2025 | 57.2 mm (2.3 in) |
| 2026 | 47.0 mm (1.9 in) |
Wettest five days (Rx5day)
| Year | Wettest five days (Rx5day) |
|---|---|
| 1938 | n/a |
| 1948 | 59.5 mm (2.3 in) |
| 1949 | 36.1 mm (1.4 in) |
| 1950 | 35.9 mm (1.4 in) |
| 1951 | 43.1 mm (1.7 in) |
| 1952 | 33.3 mm (1.3 in) |
| 1953 | 63.7 mm (2.5 in) |
| 1954 | 82.3 mm (3.2 in) |
| 1955 | 51.3 mm (2.0 in) |
| 1956 | 70.9 mm (2.8 in) |
| 1957 | 104.4 mm (4.1 in) |
| 1958 | 56.1 mm (2.2 in) |
| 1959 | 70.1 mm (2.8 in) |
| 1960 | 40.9 mm (1.6 in) |
| 1961 | 69.4 mm (2.7 in) |
| 1962 | 62.3 mm (2.5 in) |
| 1963 | 43.5 mm (1.7 in) |
| 1964 | 80.5 mm (3.2 in) |
| 1965 | 93.1 mm (3.7 in) |
| 1966 | 68.3 mm (2.7 in) |
| 1967 | 66.1 mm (2.6 in) |
| 1968 | 75.9 mm (3.0 in) |
| 1969 | 95.5 mm (3.8 in) |
| 1970 | 108.2 mm (4.3 in) |
| 1971 | 71.8 mm (2.8 in) |
| 1972 | 58.7 mm (2.3 in) |
| 1973 | 42.2 mm (1.7 in) |
| 1974 | 32.8 mm (1.3 in) |
| 1975 | 75.0 mm (3.0 in) |
| 1976 | 28.7 mm (1.1 in) |
| 1977 | 82.4 mm (3.2 in) |
| 1978 | 55.9 mm (2.2 in) |
| 1979 | 41.2 mm (1.6 in) |
| 1980 | 60.1 mm (2.4 in) |
| 1981 | 54.9 mm (2.2 in) |
| 1982 | 80.0 mm (3.1 in) |
| 1983 | 46.6 mm (1.8 in) |
| 1984 | 90.0 mm (3.5 in) |
| 1985 | 58.5 mm (2.3 in) |
| 1986 | 65.5 mm (2.6 in) |
| 1987 | 55.3 mm (2.2 in) |
| 1988 | 34.1 mm (1.3 in) |
| 1989 | 71.4 mm (2.8 in) |
| 1990 | 55.1 mm (2.2 in) |
| 1991 | 77.4 mm (3.0 in) |
| 1992 | 58.4 mm (2.3 in) |
| 1993 | 55.3 mm (2.2 in) |
| 1994 | 79.9 mm (3.1 in) |
| 1995 | 92.4 mm (3.6 in) |
| 1996 | 71.6 mm (2.8 in) |
| 1997 | 86.9 mm (3.4 in) |
| 1998 | 112.4 mm (4.4 in) |
| 1999 | 79.3 mm (3.1 in) |
| 2000 | 67.3 mm (2.6 in) |
| 2001 | 102.1 mm (4.0 in) |
| 2002 | 58.1 mm (2.3 in) |
| 2003 | 63.0 mm (2.5 in) |
| 2004 | 78.2 mm (3.1 in) |
| 2005 | 67.8 mm (2.7 in) |
| 2006 | 54.6 mm (2.1 in) |
| 2007 | 108.7 mm (4.3 in) |
| 2008 | 28.4 mm (1.1 in) |
| 2009 | 39.7 mm (1.6 in) |
| 2010 | 44.9 mm (1.8 in) |
| 2011 | 64.1 mm (2.5 in) |
| 2012 | 32.0 mm (1.3 in) |
| 2013 | 90.7 mm (3.6 in) |
| 2014 | 114.8 mm (4.5 in) |
| 2015 | 35.6 mm (1.4 in) |
| 2016 | 53.3 mm (2.1 in) |
| 2017 | 54.6 mm (2.1 in) |
| 2018 | 73.7 mm (2.9 in) |
| 2019 | 68.3 mm (2.7 in) |
| 2020 | 35.3 mm (1.4 in) |
| 2021 | 72.1 mm (2.8 in) |
| 2022 | 59.2 mm (2.3 in) |
| 2023 | 61.6 mm (2.4 in) |
| 2024 | 47.0 mm (1.9 in) |
| 2025 | 119.5 mm (4.7 in) |
| 2026 | 63.8 mm (2.5 in) |
Longest dry spell (CDD)
| Year | Longest dry spell (CDD) |
|---|---|
| 1938 | 1 day |
| 1948 | 29 days |
| 1949 | 39 days |
| 1950 | 22 days |
| 1951 | 33 days |
| 1952 | 61 days |
| 1953 | 36 days |
| 1954 | 30 days |
| 1955 | 35 days |
| 1956 | 24 days |
| 1957 | 24 days |
| 1958 | 40 days |
| 1959 | 31 days |
| 1960 | 62 days |
| 1961 | 72 days |
| 1962 | 48 days |
| 1963 | 51 days |
| 1964 | 59 days |
| 1965 | 42 days |
| 1966 | 30 days |
| 1967 | 34 days |
| 1968 | 26 days |
| 1969 | 56 days |
| 1970 | 32 days |
| 1971 | 46 days |
| 1972 | 28 days |
| 1973 | 34 days |
| 1974 | 64 days |
| 1975 | 35 days |
| 1976 | 33 days |
| 1977 | 41 days |
| 1978 | 34 days |
| 1979 | 27 days |
| 1980 | 39 days |
| 1981 | 81 days |
| 1982 | 22 days |
| 1983 | 30 days |
| 1984 | 41 days |
| 1985 | 60 days |
| 1986 | 44 days |
| 1987 | 50 days |
| 1988 | 49 days |
| 1989 | 34 days |
| 1990 | 37 days |
| 1991 | 52 days |
| 1992 | 22 days |
| 1993 | 59 days |
| 1994 | 29 days |
| 1995 | 36 days |
| 1996 | 22 days |
| 1997 | 47 days |
| 1998 | 29 days |
| 1999 | 32 days |
| 2000 | 31 days |
| 2001 | 39 days |
| 2002 | 32 days |
| 2003 | 58 days |
| 2004 | 27 days |
| 2005 | 63 days |
| 2006 | 59 days |
| 2007 | 74 days |
| 2008 | 78 days |
| 2009 | 49 days |
| 2010 | 28 days |
| 2011 | 50 days |
| 2012 | 43 days |
| 2013 | 41 days |
| 2014 | 43 days |
| 2015 | 43 days |
| 2016 | 55 days |
| 2017 | 51 days |
| 2018 | 33 days |
| 2019 | 23 days |
| 2020 | 34 days |
| 2021 | 59 days |
| 2022 | 23 days |
| 2023 | 27 days |
| 2024 | 41 days |
| 2025 | 32 days |
| 2026 | 33 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
75 years with a frostAcross 75 years with a frost, the median last spring frost at Dickinson Theodore Roosevelt R falls on 15 May and the median first autumn frost on 22 September, which leaves a median of 130 days between them.
In 1995 to 2025 the median growing season was 130 days. That is 4 days fewer than in 1950 to 1979.
Fitted over all years, the growing season changes by +0.3 days per decade at this station.
| Measure | Median, all years | Earliest period (1950 to 1979) | Recent period (1995 to 2025) | Recent against earliest | Fitted trend |
|---|---|---|---|---|---|
| Last spring frost | 15 May | 12 May | 20 May | 8 days later | +0.6 days per decade |
| First autumn frost | 22 September | 20 September | 25 September | 5 days later | +0.9 days per decade |
| Growing days | 130 days | 134 days | 130 days | 4 days fewer | +0.3 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, 1949 to 2025A day with at least 40.0 mm (1.6 in) of rain is expected about once in 2 years. A day with at least 90.6 mm (3.6 in) of rain is expected about once in 100 years.
| Expected about once in | A day with at least | Note |
|---|---|---|
| 2 years | 40.0 mm (1.6 in) | |
| 5 years | 52.9 mm (2.1 in) | |
| 10 years | 61.7 mm (2.4 in) | |
| 25 years | 73.2 mm (2.9 in) | |
| 50 years | 81.8 mm (3.2 in) | |
| 100 years | 90.6 mm (3.6 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 1949 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: 81.0 mm (3.2 in) in 2007; 79.2 mm (3.1 in) in 1998; 78.5 mm (3.1 in) in 1957.
Station Changes
No change in the annual mean temperature of this station was found against its neighbours.
Climate Twins
2010 to 2025 against 1961 to 1990Over 2010 to 2025, Dickinson Theodore Roosevelt R had a mean temperature of 6.1 C (43.0 F) and 367.3 mm (14.5 in) of rain a year. The 3 stations whose 1961 to 1990 climate was closest to that are Carlyle 13 NW (United States, 115 km away), Ralph 1 N (United States, 115 km away) and Redig 11 NE (United States, 164 km away).
| Twin station | Country | Distance away | Mean temperature, 1961-1990 | Rain a year, 1961-1990 | Climate difference |
|---|---|---|---|---|---|
| Carlyle 13 NW | United States | 115 km (71 mi) | 6.3 C (43.3 F) | 386.4 mm (15.2 in) | 1.09 |
| Ralph 1 N | United States | 115 km (71 mi) | 6.2 C (43.2 F) | 402.2 mm (15.8 in) | 1.11 |
| Redig 11 NE | United States | 164 km (102 mi) | 6.6 C (43.8 F) | 386.3 mm (15.2 in) | 1.19 |
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).