Roosevelt Radio Weather Records (USC00427395)
Record envelope, standing records and threshold days for Roosevelt Radio (USC00427395), Utah, United States, with 78 years of record.
Key Facts for Roosevelt Radio
- Roosevelt Radio (USC00427395) is a weather station in Utah, United States at 40.29 latitude and -109.96 longitude, 1,528 m (5,013 ft) above sea level.
- The station reports from 1948 to 2025, 78 years of record.
- 1,464 records set at Roosevelt Radio still stand.
- Records are tracked for tmax, tmin, prcp, snow, snwd: an element needs 30 years of data to be eligible.
- Roosevelt Radio set a monthly record daily precipitation of 27.6 mm (1.1 in) on 18 May 2026.
About the Station
- Location: Utah, United States, 40.29 latitude, -109.96 longitude.
- Elevation: 1,528 m (5,013 ft).
- Period of record: 1948 to 2025, 78 years.
- Eligible elements: tmax, tmin, prcp, snow, snwd.
Daily Record Envelope and 2026
0 days at or beyond a record| Month | Highest record high | Lowest record low | 2026 highest maximum | 2026 lowest minimum |
|---|---|---|---|---|
| Jan | 15.6 C (60.1 F) | -37.2 C (-35.0 F) | n/a | n/a |
| Feb | 20.0 C (68.0 F) | -43.9 C (-47.0 F) | n/a | n/a |
| Mar | 26.7 C (80.1 F) | -23.3 C (-9.9 F) | n/a | n/a |
| Apr | 31.1 C (88.0 F) | -13.3 C (8.1 F) | n/a | n/a |
| May | 37.2 C (99.0 F) | -7.8 C (18.0 F) | n/a | n/a |
| Jun | 40.0 C (104.0 F) | -2.8 C (27.0 F) | n/a | n/a |
| Jul | 40.6 C (105.1 F) | 2.8 C (37.0 F) | n/a | n/a |
| Aug | 40.6 C (105.1 F) | 0.0 C (32.0 F) | n/a | n/a |
| Sep | 37.2 C (99.0 F) | -6.1 C (21.0 F) | n/a | n/a |
| Oct | 30.6 C (87.1 F) | -20.0 C (-4.0 F) | n/a | n/a |
| Nov | 22.8 C (73.0 F) | -22.8 C (-9.0 F) | n/a | n/a |
| Dec | 17.2 C (63.0 F) | -40.0 C (-40.0 F) | n/a | n/a |
Which Years Hold Standing Records
1,464 standing records| Year set | Standing records |
|---|---|
| 1948 | 5 |
| 1949 | 18 |
| 1950 | 23 |
| 1951 | 6 |
| 1952 | 31 |
| 1953 | 9 |
| 1954 | 22 |
| 1955 | 35 |
| 1956 | 23 |
| 1957 | 8 |
| 1958 | 44 |
| 1959 | 20 |
| 1960 | 22 |
| 1961 | 15 |
| 1962 | 29 |
| 1963 | 18 |
| 1964 | 20 |
| 1965 | 28 |
| 1966 | 19 |
| 1967 | 16 |
| 1968 | 16 |
| 1969 | 33 |
| 1970 | 17 |
| 1971 | 23 |
| 1972 | 28 |
| 1973 | 22 |
| 1974 | 7 |
| 1975 | 32 |
| 1976 | 11 |
| 1977 | 18 |
| 1978 | 18 |
| 1979 | 20 |
| 1980 | 15 |
| 1981 | 20 |
| 1982 | 20 |
| 1983 | 11 |
| 1984 | 22 |
| 1985 | 19 |
| 1986 | 7 |
| 1987 | 19 |
| 1988 | 16 |
| 1989 | 29 |
| 1990 | 28 |
| 1991 | 16 |
| 1992 | 18 |
| 1993 | 22 |
| 1994 | 10 |
| 1995 | 16 |
| 1996 | 27 |
| 1997 | 17 |
| 1998 | 12 |
| 1999 | 10 |
| 2000 | 18 |
| 2001 | 13 |
| 2002 | 27 |
| 2003 | 21 |
| 2004 | 15 |
| 2005 | 15 |
| 2006 | 11 |
| 2007 | 27 |
| 2008 | 15 |
| 2009 | 16 |
| 2010 | 19 |
| 2011 | 20 |
| 2012 | 19 |
| 2013 | 18 |
| 2014 | 15 |
| 2015 | 31 |
| 2016 | 16 |
| 2017 | 21 |
| 2018 | 14 |
| 2019 | 20 |
| 2020 | 19 |
| 2021 | 15 |
| 2022 | 27 |
| 2023 | 14 |
| 2024 | 5 |
| 2025 | 3 |
All-Time Record Progression
5 new records| Date | Kind | Detail |
|---|---|---|
| 1987-12-26 | Record low minimum temperature | Record low minimum temperature -36.1 C (-33.0 F) |
| 1989-02-06 | Record low minimum temperature | Record low minimum temperature -43.9 C (-47.0 F) |
| 1990-12-22 | Record low maximum temperature | Record low maximum temperature -23.3 C (-9.9 F) |
| 2010-12-21 | Record daily snowfall | Record daily snowfall 35.6 cm (14.0 in) |
| 2016-09-22 | Record daily precipitation | Record daily precipitation 59.9 mm (2.4 in) |
Wettest Day of Each Month
Sep: 59.9 mm (2.4 in)| Month | Record daily precipitation (mm) | Date |
|---|---|---|
| Jan | 37.6 mm (1.5 in) | 18 January 1988 |
| Feb | 16.0 mm (0.6 in) | 18 February 1980 |
| Mar | 23.4 mm (0.9 in) | 29 March 1979 |
| Apr | 21.6 mm (0.9 in) | 27 April 1994 |
| May | 27.6 mm (1.1 in) | 18 May 2026 |
| Jun | 36.8 mm (1.4 in) | 16 June 1969 |
| Jul | 23.9 mm (0.9 in) | 29 July 1987 |
| Aug | 47.8 mm (1.9 in) | 25 August 1955 |
| Sep | 59.9 mm (2.4 in) | 22 September 2016 |
| Oct | 28.4 mm (1.1 in) | 3 October 1994 |
| Nov | 24.6 mm (1.0 in) | 3 November 1957 |
| Dec | 33.5 mm (1.3 in) | 30 December 1951 |
Period of Record Coverage
1948 to 2025| Year | Days with data | Share of year | Complete |
|---|---|---|---|
| 1948 | 171 | 47% | No |
| 1949 | 291 | 80% | No |
| 1950 | 340 | 93% | Yes |
| 1951 | 359 | 98% | Yes |
| 1952 | 366 | 100% | Yes |
| 1953 | 346 | 95% | Yes |
| 1954 | 364 | 100% | Yes |
| 1955 | 332 | 91% | Yes |
| 1956 | 365 | 100% | Yes |
| 1957 | 365 | 100% | Yes |
| 1958 | 365 | 100% | Yes |
| 1959 | 365 | 100% | Yes |
| 1960 | 366 | 100% | Yes |
| 1961 | 365 | 100% | Yes |
| 1962 | 335 | 92% | Yes |
| 1963 | 365 | 100% | Yes |
| 1964 | 366 | 100% | Yes |
| 1965 | 365 | 100% | Yes |
| 1966 | 365 | 100% | Yes |
| 1967 | 365 | 100% | Yes |
| 1968 | 366 | 100% | Yes |
| 1969 | 365 | 100% | Yes |
| 1970 | 365 | 100% | Yes |
| 1971 | 365 | 100% | Yes |
| 1972 | 366 | 100% | Yes |
| 1973 | 365 | 100% | Yes |
| 1974 | 365 | 100% | Yes |
| 1975 | 365 | 100% | Yes |
| 1976 | 366 | 100% | Yes |
| 1977 | 365 | 100% | Yes |
| 1978 | 365 | 100% | Yes |
| 1979 | 361 | 99% | Yes |
| 1980 | 366 | 100% | Yes |
| 1981 | 365 | 100% | Yes |
| 1982 | 364 | 100% | Yes |
| 1983 | 361 | 99% | Yes |
| 1984 | 364 | 99% | Yes |
| 1985 | 263 | 72% | No |
| 1986 | 233 | 64% | No |
| 1987 | 350 | 96% | Yes |
| 1988 | 357 | 98% | Yes |
| 1989 | 356 | 98% | Yes |
| 1990 | 360 | 99% | Yes |
| 1991 | 356 | 98% | Yes |
| 1992 | 352 | 96% | Yes |
| 1993 | 359 | 98% | Yes |
| 1994 | 360 | 99% | Yes |
| 1995 | 331 | 91% | Yes |
| 1996 | 363 | 99% | Yes |
| 1997 | 357 | 98% | Yes |
| 1998 | 329 | 90% | Yes |
| 1999 | 363 | 99% | Yes |
| 2000 | 364 | 99% | Yes |
| 2001 | 358 | 98% | Yes |
| 2002 | 362 | 99% | Yes |
| 2003 | 363 | 99% | Yes |
| 2004 | 362 | 99% | Yes |
| 2005 | 334 | 92% | Yes |
| 2006 | 362 | 99% | Yes |
| 2007 | 365 | 100% | Yes |
| 2008 | 364 | 99% | Yes |
| 2009 | 326 | 89% | No |
| 2010 | 363 | 99% | Yes |
| 2011 | 363 | 99% | Yes |
| 2012 | 363 | 99% | Yes |
| 2013 | 365 | 100% | Yes |
| 2014 | 361 | 99% | Yes |
| 2015 | 365 | 100% | Yes |
| 2016 | 366 | 100% | Yes |
| 2017 | 363 | 99% | Yes |
| 2018 | 365 | 100% | Yes |
| 2019 | 361 | 99% | Yes |
| 2020 | 358 | 98% | Yes |
| 2021 | 354 | 97% | Yes |
| 2022 | 350 | 96% | Yes |
| 2023 | 237 | 65% | No |
| 2024 | 200 | 55% | No |
| 2025 | 24 | 7% | No |
Latest Records
20| Date | Station | Record | Value | Beat old record by | Old record stood | Significance |
|---|---|---|---|---|---|---|
| 18 May 2026 | Roosevelt Radio, US | monthly rain | 27.6 mm (1.1 in) | 6.8 mm (0.27 in) | 50 years | 48 of 100 (Notable) |
| 26 April 2026 | Roosevelt Radio, US | daily rain | 20.3 mm (0.8 in) | 9.6 mm (0.38 in) | 16 years | 20 of 100 (Routine) |
| 6 February 2025 | Roosevelt Radio, US | daily high max | 16.7 C (62.1 F) | 1.1 C (2.0 F) | 62 years | 26 of 100 (Routine) |
| 4 February 2025 | Roosevelt Radio, US | daily high min | -1.1 C (30.0 F) | 0.6 C (1.1 F) | 62 years | 25 of 100 (Routine) |
| 7 January 2025 | Roosevelt Radio, US | daily high min | -5.0 C (23.0 F) | 0.6 C (1.1 F) | 33 years | 16 of 100 (Routine) |
| 18 October 2024 | Roosevelt Radio, US | daily rain | 25.9 mm (1.0 in) | 17.8 mm (0.7 in) | 55 years | 55 of 100 (Notable) |
| 22 June 2024 | Roosevelt Radio, US | daily rain | 15.2 mm (0.6 in) | 11.6 mm (0.5 in) | 57 years | 20 of 100 (Routine) |
| 8 May 2024 | Roosevelt Radio, US | daily low min | -6.1 C (21.0 F) | 2.8 C (5.0 F) | 14 years | 18 of 100 (Routine) |
| 6 May 2024 | Roosevelt Radio, US | daily low min (Tie) | -3.9 C (25.0 F) | tie | 21 years | 3 of 100 (Routine) |
| 8 April 2024 | Roosevelt Radio, US | daily low min (Tie) | -9.4 C (15.1 F) | tie | 51 years | 5 of 100 (Routine) |
| 20 February 2024 | Roosevelt Radio, US | daily rain | 8.9 mm (0.35 in) | 4.1 mm (0.16 in) | 28 years | 20 of 100 (Routine) |
| 10 February 2024 | Roosevelt Radio, US | daily rain | 8.1 mm (0.32 in) | 5.6 mm (0.22 in) | 48 years | 20 of 100 (Routine) |
| 10 February 2024 | Roosevelt Radio, US | daily snowfall | 2.8 cm (1.1 in) | 0.3 cm (0.1 in) | 48 years | 20 of 100 (Routine) |
| 29 January 2024 | Roosevelt Radio, US | daily high max | 11.1 C (52.0 F) | 0.5 C (0.9 F) | 8 years | 9 of 100 (Routine) |
| 24 January 2024 | Roosevelt Radio, US | daily high max | 11.1 C (52.0 F) | 0.5 C (0.9 F) | 64 years | 26 of 100 (Routine) |
| 24 January 2024 | Roosevelt Radio, US | daily high min | -2.2 C (28.0 F) | 1.7 C (3.1 F) | 24 years | 16 of 100 (Routine) |
| 23 January 2024 | Roosevelt Radio, US | daily high min | -1.1 C (30.0 F) | 0.6 C (1.1 F) | 68 years | 27 of 100 (Routine) |
| 13 September 2023 | Roosevelt Radio, US | daily high min (Tie) | 13.9 C (57.0 F) | tie | 21 years | 3 of 100 (Routine) |
| 3 August 2023 | Roosevelt Radio, US | daily rain | 7.6 mm (0.30 in) | 2.5 mm (0.10 in) | 8 years | 14 of 100 (Routine) |
| 27 June 2023 | Roosevelt Radio, US | daily low min | 3.3 C (37.9 F) | 1.1 C (2.0 F) | 53 years | 26 of 100 (Routine) |
Climate Trend
63 complete years, 1950 to 2022| Year | Annual mean temperature | Difference from the station mean |
|---|---|---|
| 1950 | 7.8 C | -0.39 C |
| 1951 | 8.0 C | -0.17 C |
| 1952 | 6.7 C | -1.50 C |
| 1954 | 9.8 C | +1.68 C |
| 1956 | 8.6 C | +0.48 C |
| 1957 | 7.7 C | -0.45 C |
| 1958 | 9.9 C | +1.76 C |
| 1959 | 9.3 C | +1.16 C |
| 1960 | 8.5 C | +0.29 C |
| 1961 | 8.8 C | +0.66 C |
| 1963 | 9.4 C | +1.22 C |
| 1964 | 7.5 C | -0.69 C |
| 1965 | 7.3 C | -0.87 C |
| 1966 | 8.4 C | +0.20 C |
| 1967 | 7.6 C | -0.54 C |
| 1968 | 7.1 C | -1.02 C |
| 1969 | 8.8 C | +0.60 C |
| 1970 | 8.3 C | +0.13 C |
| 1971 | 7.8 C | -0.38 C |
| 1972 | 8.8 C | +0.66 C |
| 1973 | 6.4 C | -1.80 C |
| 1974 | 8.1 C | -0.05 C |
| 1975 | 7.4 C | -0.78 C |
| 1976 | 8.5 C | +0.29 C |
| 1977 | 9.9 C | +1.69 C |
| 1978 | 7.5 C | -0.64 C |
| 1979 | 6.8 C | -1.36 C |
| 1980 | 9.0 C | +0.79 C |
| 1981 | 10.4 C | +2.20 C |
| 1982 | 7.9 C | -0.28 C |
| 1983 | 8.4 C | +0.22 C |
| 1984 | 6.8 C | -1.33 C |
| 1987 | 8.4 C | +0.22 C |
| 1988 | 7.2 C | -0.95 C |
| 1989 | 7.5 C | -0.62 C |
| 1990 | 8.3 C | +0.10 C |
| 1991 | 7.2 C | -0.99 C |
| 1992 | 8.1 C | -0.09 C |
| 1993 | 6.7 C | -1.49 C |
| 1994 | 9.2 C | +1.03 C |
| 1996 | 8.6 C | +0.39 C |
| 1997 | 7.4 C | -0.77 C |
| 1999 | 8.9 C | +0.76 C |
| 2000 | 9.6 C | +1.46 C |
| 2001 | 9.0 C | +0.81 C |
| 2002 | 7.7 C | -0.48 C |
| 2003 | 8.6 C | +0.42 C |
| 2004 | 7.9 C | -0.24 C |
| 2006 | 8.5 C | +0.35 C |
| 2007 | 7.6 C | -0.54 C |
| 2008 | 6.4 C | -1.80 C |
| 2010 | 7.2 C | -0.99 C |
| 2011 | 6.4 C | -1.81 C |
| 2012 | 9.5 C | +1.31 C |
| 2013 | 6.2 C | -1.99 C |
| 2014 | 9.0 C | +0.80 C |
| 2015 | 10.2 C | +2.04 C |
| 2016 | 9.3 C | +1.13 C |
| 2017 | 8.9 C | +0.71 C |
| 2019 | 7.0 C | -1.13 C |
| 2020 | 7.9 C | -0.22 C |
| 2021 | 9.0 C | +0.86 C |
| 2022 | 8.3 C | +0.12 C |
The fitted trend in annual mean temperature here over 1950 to 2022 is -0.01 C (-0.14 to 0.11) per decade. The interval includes zero, so the trend is not clearly different from zero. In Fahrenheit: -0.03 F (-0.25 to 0.20) per decade. The slope is a straight line fitted to 63 complete years; the brackets give its 95 percent interval.
| Measure | Per decade (C) | Per decade (F) | Period | Complete years | Reading |
|---|---|---|---|---|---|
| Annual mean temperature | -0.01 C (-0.14 to 0.11) per decade | -0.03 F (-0.25 to 0.20) per decade | 1950 to 2022 | 63 | Not clearly different from zero |
| Mean daily maximum | 0.13 C (-0.02 to 0.28) per decade | 0.23 F (-0.04 to 0.51) per decade | 1950 to 2022 | 63 | Not clearly different from zero |
| Mean daily minimum | -0.16 C (-0.28 to -0.03) per decade | -0.3 F (-0.5 to -0.1) per decade | 1950 to 2022 | 63 | Fall |
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
1948 to 2026| Measure | Record | Year of the record | Median year | Years with a value |
|---|---|---|---|---|
| Hottest day (TXx) | 40.6 C (105.1 F) | 1958 | 37.8 C (100.0 F) | 78 |
| Coldest night (TNn) | -43.9 C (-47.0 F) | 1989 | -27.5 C (-17.5 F) | 78 |
| Wettest day (Rx1day) | 59.9 mm (2.4 in) | 2016 | 19.6 mm (0.8 in) | 79 |
| Wettest five days (Rx5day) | 68.2 mm (2.7 in) | 2016 | 28.4 mm (1.1 in) | 79 |
| Longest dry spell (CDD) | 109 days | 2017 | 46 days | 79 |
Hottest day (TXx)
| Year | Hottest day (TXx) |
|---|---|
| 1948 | 35.0 C (95.0 F) |
| 1949 | 37.2 C (99.0 F) |
| 1950 | 36.7 C (98.1 F) |
| 1951 | 36.1 C (97.0 F) |
| 1952 | 37.8 C (100.0 F) |
| 1953 | 37.8 C (100.0 F) |
| 1954 | 37.8 C (100.0 F) |
| 1955 | 35.6 C (96.1 F) |
| 1956 | 38.3 C (100.9 F) |
| 1957 | 37.8 C (100.0 F) |
| 1958 | 40.6 C (105.1 F) |
| 1959 | 38.9 C (102.0 F) |
| 1960 | 40.6 C (105.1 F) |
| 1961 | 37.8 C (100.0 F) |
| 1962 | 37.8 C (100.0 F) |
| 1963 | 37.2 C (99.0 F) |
| 1964 | 36.7 C (98.1 F) |
| 1965 | 35.0 C (95.0 F) |
| 1966 | 37.2 C (99.0 F) |
| 1967 | 36.1 C (97.0 F) |
| 1968 | 35.6 C (96.1 F) |
| 1969 | 36.7 C (98.1 F) |
| 1970 | 37.2 C (99.0 F) |
| 1971 | 37.2 C (99.0 F) |
| 1972 | 37.2 C (99.0 F) |
| 1973 | 38.3 C (100.9 F) |
| 1974 | 37.2 C (99.0 F) |
| 1975 | 36.1 C (97.0 F) |
| 1976 | 38.3 C (100.9 F) |
| 1977 | 36.7 C (98.1 F) |
| 1978 | 38.3 C (100.9 F) |
| 1979 | 38.9 C (102.0 F) |
| 1980 | 37.2 C (99.0 F) |
| 1981 | 36.7 C (98.1 F) |
| 1982 | 37.2 C (99.0 F) |
| 1983 | 38.3 C (100.9 F) |
| 1984 | 37.8 C (100.0 F) |
| 1985 | 40.6 C (105.1 F) |
| 1986 | 37.8 C (100.0 F) |
| 1987 | 35.6 C (96.1 F) |
| 1988 | 38.9 C (102.0 F) |
| 1989 | 40.0 C (104.0 F) |
| 1990 | 38.3 C (100.9 F) |
| 1991 | 38.3 C (100.9 F) |
| 1992 | 37.8 C (100.0 F) |
| 1993 | 36.7 C (98.1 F) |
| 1994 | 38.3 C (100.9 F) |
| 1995 | 37.8 C (100.0 F) |
| 1996 | 37.8 C (100.0 F) |
| 1997 | 36.1 C (97.0 F) |
| 1998 | 40.6 C (105.1 F) |
| 1999 | 36.7 C (98.1 F) |
| 2000 | 37.8 C (100.0 F) |
| 2001 | 39.4 C (102.9 F) |
| 2002 | 40.0 C (104.0 F) |
| 2003 | 38.3 C (100.9 F) |
| 2004 | 36.7 C (98.1 F) |
| 2005 | 40.0 C (104.0 F) |
| 2006 | 39.4 C (102.9 F) |
| 2007 | 38.3 C (100.9 F) |
| 2008 | 37.2 C (99.0 F) |
| 2009 | 37.2 C (99.0 F) |
| 2010 | 37.2 C (99.0 F) |
| 2011 | 35.6 C (96.1 F) |
| 2012 | 37.8 C (100.0 F) |
| 2013 | 38.3 C (100.9 F) |
| 2014 | 37.8 C (100.0 F) |
| 2015 | 37.8 C (100.0 F) |
| 2016 | 38.9 C (102.0 F) |
| 2017 | 37.8 C (100.0 F) |
| 2018 | 38.9 C (102.0 F) |
| 2019 | 37.8 C (100.0 F) |
| 2020 | 38.3 C (100.9 F) |
| 2021 | 40.0 C (104.0 F) |
| 2022 | 37.2 C (99.0 F) |
| 2023 | 38.9 C (102.0 F) |
| 2024 | 37.2 C (99.0 F) |
| 2025 | 16.7 C (62.1 F) |
| 2026 | n/a |
Coldest night (TNn)
| Year | Coldest night (TNn) |
|---|---|
| 1948 | -28.3 C (-18.9 F) |
| 1949 | -33.3 C (-27.9 F) |
| 1950 | -31.7 C (-25.1 F) |
| 1951 | -27.2 C (-17.0 F) |
| 1952 | -35.6 C (-32.1 F) |
| 1953 | -21.1 C (-6.0 F) |
| 1954 | -21.7 C (-7.1 F) |
| 1955 | -28.3 C (-18.9 F) |
| 1956 | -24.4 C (-11.9 F) |
| 1957 | -28.3 C (-18.9 F) |
| 1958 | -17.8 C (0.0 F) |
| 1959 | -21.7 C (-7.1 F) |
| 1960 | -27.8 C (-18.0 F) |
| 1961 | -24.4 C (-11.9 F) |
| 1962 | -33.3 C (-27.9 F) |
| 1963 | -28.9 C (-20.0 F) |
| 1964 | -26.7 C (-16.1 F) |
| 1965 | -26.1 C (-15.0 F) |
| 1966 | -27.2 C (-17.0 F) |
| 1967 | -26.1 C (-15.0 F) |
| 1968 | -29.4 C (-20.9 F) |
| 1969 | -26.1 C (-15.0 F) |
| 1970 | -26.1 C (-15.0 F) |
| 1971 | -32.8 C (-27.0 F) |
| 1972 | -29.4 C (-20.9 F) |
| 1973 | -31.1 C (-24.0 F) |
| 1974 | -31.7 C (-25.1 F) |
| 1975 | -25.0 C (-13.0 F) |
| 1976 | -23.9 C (-11.0 F) |
| 1977 | -22.2 C (-8.0 F) |
| 1978 | -29.4 C (-20.9 F) |
| 1979 | -33.3 C (-27.9 F) |
| 1980 | -23.3 C (-9.9 F) |
| 1981 | -16.7 C (1.9 F) |
| 1982 | -27.2 C (-17.0 F) |
| 1983 | -23.9 C (-11.0 F) |
| 1984 | -33.9 C (-29.0 F) |
| 1985 | -31.7 C (-25.1 F) |
| 1986 | -20.0 C (-4.0 F) |
| 1987 | -36.1 C (-33.0 F) |
| 1988 | -33.9 C (-29.0 F) |
| 1989 | -43.9 C (-47.0 F) |
| 1990 | -40.0 C (-40.0 F) |
| 1991 | -28.3 C (-18.9 F) |
| 1992 | -29.4 C (-20.9 F) |
| 1993 | -28.9 C (-20.0 F) |
| 1994 | -21.1 C (-6.0 F) |
| 1995 | -20.6 C (-5.1 F) |
| 1996 | -31.1 C (-24.0 F) |
| 1997 | -31.1 C (-24.0 F) |
| 1998 | -36.7 C (-34.1 F) |
| 1999 | -21.7 C (-7.1 F) |
| 2000 | -18.9 C (-2.0 F) |
| 2001 | -26.1 C (-15.0 F) |
| 2002 | -23.9 C (-11.0 F) |
| 2003 | -27.2 C (-17.0 F) |
| 2004 | -30.0 C (-22.0 F) |
| 2005 | -23.9 C (-11.0 F) |
| 2006 | -26.7 C (-16.1 F) |
| 2007 | -37.2 C (-35.0 F) |
| 2008 | -32.2 C (-26.0 F) |
| 2009 | -33.3 C (-27.9 F) |
| 2010 | -30.6 C (-23.1 F) |
| 2011 | -35.0 C (-31.0 F) |
| 2012 | -27.8 C (-18.0 F) |
| 2013 | -32.8 C (-27.0 F) |
| 2014 | -26.7 C (-16.1 F) |
| 2015 | -25.6 C (-14.1 F) |
| 2016 | -27.8 C (-18.0 F) |
| 2017 | -32.2 C (-26.0 F) |
| 2018 | -20.0 C (-4.0 F) |
| 2019 | -26.7 C (-16.1 F) |
| 2020 | -24.4 C (-11.9 F) |
| 2021 | -25.0 C (-13.0 F) |
| 2022 | -27.2 C (-17.0 F) |
| 2023 | -30.6 C (-23.1 F) |
| 2024 | -21.1 C (-6.0 F) |
| 2025 | -21.7 C (-7.1 F) |
| 2026 | n/a |
Wettest day (Rx1day)
| Year | Wettest day (Rx1day) |
|---|---|
| 1948 | 18.3 mm (0.7 in) |
| 1949 | 22.4 mm (0.9 in) |
| 1950 | 12.4 mm (0.5 in) |
| 1951 | 33.5 mm (1.3 in) |
| 1952 | 34.8 mm (1.4 in) |
| 1953 | 12.2 mm (0.5 in) |
| 1954 | 21.3 mm (0.8 in) |
| 1955 | 47.8 mm (1.9 in) |
| 1956 | 14.0 mm (0.6 in) |
| 1957 | 24.6 mm (1.0 in) |
| 1958 | 14.0 mm (0.6 in) |
| 1959 | 20.1 mm (0.8 in) |
| 1960 | 19.1 mm (0.8 in) |
| 1961 | 25.7 mm (1.0 in) |
| 1962 | 21.3 mm (0.8 in) |
| 1963 | 6.9 mm (0.27 in) |
| 1964 | 14.5 mm (0.6 in) |
| 1965 | 32.0 mm (1.3 in) |
| 1966 | 24.6 mm (1.0 in) |
| 1967 | 9.1 mm (0.36 in) |
| 1968 | 18.0 mm (0.7 in) |
| 1969 | 36.8 mm (1.4 in) |
| 1970 | 20.6 mm (0.8 in) |
| 1971 | 18.5 mm (0.7 in) |
| 1972 | 18.5 mm (0.7 in) |
| 1973 | 18.5 mm (0.7 in) |
| 1974 | 9.7 mm (0.38 in) |
| 1975 | 20.8 mm (0.8 in) |
| 1976 | 14.5 mm (0.6 in) |
| 1977 | 8.1 mm (0.32 in) |
| 1978 | 14.0 mm (0.6 in) |
| 1979 | 26.2 mm (1.0 in) |
| 1980 | 17.5 mm (0.7 in) |
| 1981 | 20.8 mm (0.8 in) |
| 1982 | 22.6 mm (0.9 in) |
| 1983 | 15.5 mm (0.6 in) |
| 1984 | 16.3 mm (0.6 in) |
| 1985 | 11.2 mm (0.4 in) |
| 1986 | 15.7 mm (0.6 in) |
| 1987 | 23.9 mm (0.9 in) |
| 1988 | 37.6 mm (1.5 in) |
| 1989 | 10.9 mm (0.4 in) |
| 1990 | 22.1 mm (0.9 in) |
| 1991 | 11.2 mm (0.4 in) |
| 1992 | 17.5 mm (0.7 in) |
| 1993 | 19.1 mm (0.8 in) |
| 1994 | 28.4 mm (1.1 in) |
| 1995 | 20.3 mm (0.8 in) |
| 1996 | 13.2 mm (0.5 in) |
| 1997 | 20.8 mm (0.8 in) |
| 1998 | 36.6 mm (1.4 in) |
| 1999 | 19.1 mm (0.8 in) |
| 2000 | 20.3 mm (0.8 in) |
| 2001 | 10.7 mm (0.4 in) |
| 2002 | 24.4 mm (1.0 in) |
| 2003 | 18.3 mm (0.7 in) |
| 2004 | 26.2 mm (1.0 in) |
| 2005 | 14.2 mm (0.6 in) |
| 2006 | 23.4 mm (0.9 in) |
| 2007 | 22.9 mm (0.9 in) |
| 2008 | 19.1 mm (0.8 in) |
| 2009 | 16.0 mm (0.6 in) |
| 2010 | 23.9 mm (0.9 in) |
| 2011 | 21.6 mm (0.9 in) |
| 2012 | 20.6 mm (0.8 in) |
| 2013 | 26.9 mm (1.1 in) |
| 2014 | 10.2 mm (0.4 in) |
| 2015 | 14.7 mm (0.6 in) |
| 2016 | 59.9 mm (2.4 in) |
| 2017 | 19.6 mm (0.8 in) |
| 2018 | 15.2 mm (0.6 in) |
| 2019 | 20.3 mm (0.8 in) |
| 2020 | 26.4 mm (1.0 in) |
| 2021 | 20.3 mm (0.8 in) |
| 2022 | 11.4 mm (0.4 in) |
| 2023 | 7.6 mm (0.30 in) |
| 2024 | 25.9 mm (1.0 in) |
| 2025 | 0.0 mm (0.00 in) |
| 2026 | 27.6 mm (1.1 in) |
Wettest five days (Rx5day)
| Year | Wettest five days (Rx5day) |
|---|---|
| 1948 | 25.7 mm (1.0 in) |
| 1949 | 32.3 mm (1.3 in) |
| 1950 | 15.4 mm (0.6 in) |
| 1951 | 53.6 mm (2.1 in) |
| 1952 | 53.6 mm (2.1 in) |
| 1953 | 22.4 mm (0.9 in) |
| 1954 | 43.6 mm (1.7 in) |
| 1955 | 47.8 mm (1.9 in) |
| 1956 | 19.0 mm (0.7 in) |
| 1957 | 55.6 mm (2.2 in) |
| 1958 | 27.1 mm (1.1 in) |
| 1959 | 23.4 mm (0.9 in) |
| 1960 | 30.7 mm (1.2 in) |
| 1961 | 46.3 mm (1.8 in) |
| 1962 | 28.0 mm (1.1 in) |
| 1963 | 12.0 mm (0.5 in) |
| 1964 | 32.8 mm (1.3 in) |
| 1965 | 44.5 mm (1.8 in) |
| 1966 | 34.8 mm (1.4 in) |
| 1967 | 17.9 mm (0.7 in) |
| 1968 | 30.9 mm (1.2 in) |
| 1969 | 56.9 mm (2.2 in) |
| 1970 | 50.9 mm (2.0 in) |
| 1971 | 28.5 mm (1.1 in) |
| 1972 | 26.1 mm (1.0 in) |
| 1973 | 27.9 mm (1.1 in) |
| 1974 | 23.4 mm (0.9 in) |
| 1975 | 28.5 mm (1.1 in) |
| 1976 | 23.1 mm (0.9 in) |
| 1977 | 14.0 mm (0.6 in) |
| 1978 | 33.8 mm (1.3 in) |
| 1979 | 37.3 mm (1.5 in) |
| 1980 | 39.8 mm (1.6 in) |
| 1981 | 31.2 mm (1.2 in) |
| 1982 | 33.8 mm (1.3 in) |
| 1983 | 30.7 mm (1.2 in) |
| 1984 | 23.7 mm (0.9 in) |
| 1985 | 15.2 mm (0.6 in) |
| 1986 | 21.6 mm (0.9 in) |
| 1987 | 37.1 mm (1.5 in) |
| 1988 | 38.6 mm (1.5 in) |
| 1989 | 23.9 mm (0.9 in) |
| 1990 | 25.5 mm (1.0 in) |
| 1991 | 23.6 mm (0.9 in) |
| 1992 | 22.4 mm (0.9 in) |
| 1993 | 28.0 mm (1.1 in) |
| 1994 | 57.6 mm (2.3 in) |
| 1995 | 42.7 mm (1.7 in) |
| 1996 | 21.1 mm (0.8 in) |
| 1997 | 41.4 mm (1.6 in) |
| 1998 | 44.5 mm (1.8 in) |
| 1999 | 32.7 mm (1.3 in) |
| 2000 | 33.8 mm (1.3 in) |
| 2001 | 19.9 mm (0.8 in) |
| 2002 | 5.8 mm (0.23 in) |
| 2003 | 19.6 mm (0.8 in) |
| 2004 | 25.6 mm (1.0 in) |
| 2005 | 22.6 mm (0.9 in) |
| 2006 | 47.5 mm (1.9 in) |
| 2007 | 31.3 mm (1.2 in) |
| 2008 | 21.6 mm (0.9 in) |
| 2009 | 16.0 mm (0.6 in) |
| 2010 | 36.6 mm (1.4 in) |
| 2011 | 30.6 mm (1.2 in) |
| 2012 | 24.6 mm (1.0 in) |
| 2013 | 38.0 mm (1.5 in) |
| 2014 | 24.3 mm (1.0 in) |
| 2015 | 20.8 mm (0.8 in) |
| 2016 | 68.2 mm (2.7 in) |
| 2017 | 22.1 mm (0.9 in) |
| 2018 | 25.7 mm (1.0 in) |
| 2019 | 34.3 mm (1.4 in) |
| 2020 | 40.1 mm (1.6 in) |
| 2021 | 22.4 mm (0.9 in) |
| 2022 | 25.9 mm (1.0 in) |
| 2023 | 20.0 mm (0.8 in) |
| 2024 | 28.4 mm (1.1 in) |
| 2025 | 0.0 mm (0.00 in) |
| 2026 | 29.1 mm (1.1 in) |
Longest dry spell (CDD)
| Year | Longest dry spell (CDD) |
|---|---|
| 1948 | 26 days |
| 1949 | 55 days |
| 1950 | 61 days |
| 1951 | 44 days |
| 1952 | 66 days |
| 1953 | 48 days |
| 1954 | 42 days |
| 1955 | 52 days |
| 1956 | 55 days |
| 1957 | 33 days |
| 1958 | 55 days |
| 1959 | 53 days |
| 1960 | 75 days |
| 1961 | 61 days |
| 1962 | 40 days |
| 1963 | 43 days |
| 1964 | 53 days |
| 1965 | 32 days |
| 1966 | 67 days |
| 1967 | 46 days |
| 1968 | 43 days |
| 1969 | 53 days |
| 1970 | 28 days |
| 1971 | 57 days |
| 1972 | 62 days |
| 1973 | 30 days |
| 1974 | 85 days |
| 1975 | 47 days |
| 1976 | 90 days |
| 1977 | 30 days |
| 1978 | 68 days |
| 1979 | 73 days |
| 1980 | 47 days |
| 1981 | 30 days |
| 1982 | 41 days |
| 1983 | 34 days |
| 1984 | 38 days |
| 1985 | 42 days |
| 1986 | 34 days |
| 1987 | 49 days |
| 1988 | 52 days |
| 1989 | 66 days |
| 1990 | 37 days |
| 1991 | 68 days |
| 1992 | 60 days |
| 1993 | 34 days |
| 1994 | 35 days |
| 1995 | 33 days |
| 1996 | 37 days |
| 1997 | 35 days |
| 1998 | 30 days |
| 1999 | 51 days |
| 2000 | 52 days |
| 2001 | 16 days |
| 2002 | 7 days |
| 2003 | 5 days |
| 2004 | 11 days |
| 2005 | 30 days |
| 2006 | 62 days |
| 2007 | 79 days |
| 2008 | 61 days |
| 2009 | 61 days |
| 2010 | 30 days |
| 2011 | 31 days |
| 2012 | 91 days |
| 2013 | 46 days |
| 2014 | 58 days |
| 2015 | 28 days |
| 2016 | 44 days |
| 2017 | 109 days |
| 2018 | 45 days |
| 2019 | 58 days |
| 2020 | 59 days |
| 2021 | 57 days |
| 2022 | 51 days |
| 2023 | 44 days |
| 2024 | 38 days |
| 2025 | 5 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
63 years with a frostAcross 63 years with a frost, the median last spring frost at Roosevelt Radio falls on 15 May and the median first autumn frost on 25 September, which leaves a median of 129 days between them.
In 1988 to 2022 the median growing season was 127 days. That is 5 days fewer than in 1950 to 1982.
Fitted over all years, the growing season changes by -2.2 days per decade at this station.
| Measure | Median, all years | Earliest period (1950 to 1982) | Recent period (1988 to 2022) | Recent against earliest | Fitted trend |
|---|---|---|---|---|---|
| Last spring frost | 15 May | 15 May | 20 May | 5 days later | +1.9 days per decade |
| First autumn frost | 25 September | 27 September | 24 September | 3 days earlier | -0.2 days per decade |
| Growing days | 129 days | 132 days | 127 days | 5 days fewer | -2.2 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
66 years, 1950 to 2023A day with at least 18.8 mm (0.7 in) of rain is expected about once in 2 years. A day with at least 49.3 mm (1.9 in) of rain is expected about once in 100 years.
| Expected about once in | A day with at least | Note |
|---|---|---|
| 2 years | 18.8 mm (0.7 in) | |
| 5 years | 26.3 mm (1.0 in) | |
| 10 years | 31.5 mm (1.2 in) | |
| 25 years | 38.4 mm (1.5 in) | |
| 50 years | 43.8 mm (1.7 in) | |
| 100 years | 49.3 mm (1.9 in) | Longer than the 66 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, 66 years of values from 1950 to 2023.
A return level is an estimate. It is least reliable for the long periods, 50 and 100 years, and for any period longer than the record behind the fit, where the fit has to reach past the largest day actually observed. It is not a forecast.
The largest wettest-day totals in the fit: 59.9 mm (2.4 in) in 2016; 47.8 mm (1.9 in) in 1955; 37.6 mm (1.5 in) in 1988.
Station Changes
1 suspectedOne change was suspected in the annual mean temperature of Roosevelt Radio, at 1987. Each is measured against neighbouring stations.
- Relative to 5 neighbouring stations, the station's annual mean temperature from 1987 ran 0.9 C (1.6 F) lower than in the years before (likely change).
| Year | Shift (C) | Shift (F) | Strength | Neighbours |
|---|---|---|---|---|
| 1987 | -0.9 | -1.6 | 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
2006 to 2022 against 1961 to 1990Over 2006 to 2022, Roosevelt Radio had a mean temperature of 8.1 C (46.5 F) and 180.8 mm (7.1 in) of rain a year. The 3 stations whose 1961 to 1990 climate was closest to that are Rangely 1E (United States, 103 km away), Basin (United States, 482 km away) and Worland Muni AP (United States, 441 km away).
| Twin station | Country | Distance away | Mean temperature, 1961-1990 | Rain a year, 1961-1990 | Climate difference |
|---|---|---|---|---|---|
| Rangely 1E | United States | 103 km (64 mi) | 8.0 C (46.4 F) | 224.8 mm (8.9 in) | 0.60 |
| Basin | United States | 482 km (300 mi) | 7.6 C (45.6 F) | 173.0 mm (6.8 in) | 0.86 |
| Worland Muni AP | United States | 441 km (274 mi) | 7.7 C (45.8 F) | 187.5 mm (7.4 in) | 0.88 |
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 2026-10-15 (15 October 2026). Records are computed by this site and are not official.
Data as of . Last revised (2026-10-12).