Riggins Weather Records (USC00107706)
Record envelope, standing records and threshold days for Riggins (USC00107706), Idaho, United States, with 131 years of record.
Key Facts for Riggins
- Riggins (USC00107706) is a weather station in Idaho, United States at 45.35 latitude and -116.39 longitude, 627 m (2,056 ft) above sea level.
- The station reports from 1896 to 2026, 131 years of record.
- 1,464 records set at Riggins still stand.
- Records are tracked for tmax, tmin, prcp, snow, snwd: an element needs 30 years of data to be eligible.
- Riggins set a daily record high maximum temperature of 32.8 C (91.0 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: Idaho, United States, 45.35 latitude, -116.39 longitude.
- Elevation: 627 m (2,056 ft).
- Period of record: 1896 to 2026, 131 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 | 21.1 C (70.0 F) | -23.3 C (-9.9 F) | 11.7 C (53.1 F) | -10.0 C (14.0 F) |
| Feb | 22.2 C (72.0 F) | -22.2 C (-8.0 F) | 16.7 C (62.1 F) | -7.8 C (18.0 F) |
| Mar | 28.3 C (82.9 F) | -16.1 C (3.0 F) | 28.3 C (82.9 F) | -3.9 C (25.0 F) |
| Apr | 35.0 C (95.0 F) | -7.8 C (18.0 F) | 29.4 C (84.9 F) | -2.8 C (27.0 F) |
| May | 39.4 C (102.9 F) | -3.9 C (25.0 F) | 35.0 C (95.0 F) | 0.0 C (32.0 F) |
| Jun | 42.2 C (108.0 F) | -5.6 C (21.9 F) | 36.1 C (97.0 F) | 1.1 C (34.0 F) |
| Jul | 45.0 C (113.0 F) | 2.2 C (36.0 F) | 40.0 C (104.0 F) | 8.9 C (48.0 F) |
| Aug | 46.1 C (115.0 F) | 2.2 C (36.0 F) | 38.9 C (102.0 F) | 6.7 C (44.1 F) |
| Sep | 43.3 C (109.9 F) | -6.7 C (19.9 F) | 32.8 C (91.0 F) | 1.7 C (35.1 F) |
| Oct | 35.0 C (95.0 F) | -11.7 C (10.9 F) | 32.8 C (91.0 F) | 3.3 C (37.9 F) |
| Nov | 26.7 C (80.1 F) | -18.9 C (-2.0 F) | n/a | n/a |
| Dec | 20.6 C (69.1 F) | -22.2 C (-8.0 F) | n/a | n/a |
Which Years Hold Standing Records
1,464 standing records| Year set | Standing records |
|---|---|
| 1896 | 26 |
| 1897 | 18 |
| 1898 | 26 |
| 1899 | 34 |
| 1900 | 23 |
| 1901 | 21 |
| 1902 | 32 |
| 1903 | 10 |
| 1904 | 10 |
| 1905 | 13 |
| 1906 | 16 |
| 1907 | 8 |
| 1908 | 3 |
| 1914 | 14 |
| 1915 | 8 |
| 1916 | 40 |
| 1917 | 38 |
| 1918 | 5 |
| 1919 | 3 |
| 1934 | 5 |
| 1937 | 2 |
| 1938 | 4 |
| 1939 | 22 |
| 1940 | 20 |
| 1941 | 12 |
| 1942 | 34 |
| 1943 | 6 |
| 1944 | 10 |
| 1945 | 9 |
| 1946 | 5 |
| 1947 | 6 |
| 1948 | 15 |
| 1949 | 31 |
| 1950 | 24 |
| 1951 | 11 |
| 1952 | 5 |
| 1953 | 23 |
| 1954 | 8 |
| 1955 | 23 |
| 1956 | 5 |
| 1957 | 16 |
| 1958 | 5 |
| 1959 | 15 |
| 1960 | 17 |
| 1961 | 19 |
| 1962 | 14 |
| 1963 | 23 |
| 1964 | 7 |
| 1965 | 20 |
| 1966 | 21 |
| 1967 | 19 |
| 1968 | 22 |
| 1969 | 10 |
| 1970 | 15 |
| 1971 | 15 |
| 1972 | 24 |
| 1973 | 5 |
| 1974 | 17 |
| 1975 | 15 |
| 1976 | 6 |
| 1977 | 13 |
| 1978 | 9 |
| 1979 | 10 |
| 1980 | 3 |
| 1981 | 15 |
| 1982 | 4 |
| 1983 | 11 |
| 1984 | 11 |
| 1985 | 28 |
| 1986 | 19 |
| 1987 | 17 |
| 1988 | 10 |
| 1989 | 11 |
| 1990 | 26 |
| 1991 | 9 |
| 1992 | 28 |
| 1993 | 10 |
| 1994 | 3 |
| 1995 | 10 |
| 1996 | 7 |
| 1997 | 4 |
| 1998 | 5 |
| 1999 | 18 |
| 2000 | 3 |
| 2001 | 14 |
| 2002 | 11 |
| 2003 | 15 |
| 2004 | 3 |
| 2005 | 7 |
| 2006 | 15 |
| 2007 | 9 |
| 2008 | 10 |
| 2009 | 12 |
| 2010 | 10 |
| 2011 | 3 |
| 2012 | 1 |
| 2017 | 6 |
| 2018 | 10 |
| 2019 | 21 |
| 2020 | 13 |
| 2021 | 16 |
| 2022 | 27 |
| 2023 | 10 |
| 2024 | 13 |
| 2025 | 13 |
| 2026 | 8 |
All-Time Record Progression
10 new records| Date | Kind | Detail |
|---|---|---|
| 1957-01-27 | Record low minimum temperature | Record low minimum temperature -23.3 C (-9.9 F) |
| 1959-07-23 | Record high maximum temperature | Record high maximum temperature 43.9 C (111.0 F) |
| 1961-08-02 | Record high maximum temperature | Record high maximum temperature 44.4 C (111.9 F) |
| 1961-08-04 | Record high maximum temperature | Record high maximum temperature 45.6 C (114.1 F) |
| 1962-01-21 | Record low maximum temperature | Record low maximum temperature -12.2 C (10.0 F) |
| 1967-08-20 | Record high maximum temperature | Record high maximum temperature 46.1 C (115.0 F) |
| 1978-07-04 | Record daily precipitation | Record daily precipitation 63.2 mm (2.5 in) |
| 1983-12-22 | Record low maximum temperature | Record low maximum temperature -14.4 C (6.1 F) |
| 1983-12-23 | Record low maximum temperature | Record low maximum temperature -15.0 C (5.0 F) |
| 2025-02-08 | Record snow depth | Record snow depth 30.5 cm (12.0 in) |
Wettest Day of Each Month
Jul: 63.2 mm (2.5 in)| Month | Record daily precipitation (mm) | Date |
|---|---|---|
| Jan | 40.1 mm (1.6 in) | 29 January 1965 |
| Feb | 43.2 mm (1.7 in) | 5 February 2025 |
| Mar | 35.6 mm (1.4 in) | 24 March 2002 |
| Apr | 43.2 mm (1.7 in) | 28 April 1933 |
| May | 44.5 mm (1.8 in) | 29 May 1990 |
| Jun | 44.7 mm (1.8 in) | 21 June 2003 |
| Jul | 63.2 mm (2.5 in) | 4 July 1978 |
| Aug | 43.2 mm (1.7 in) | 23 August 2003 |
| Sep | 34.3 mm (1.4 in) | 23 September 1917 |
| Oct | 33.5 mm (1.3 in) | 12 October 1962 |
| Nov | 44.5 mm (1.8 in) | 16 November 1906 |
| Dec | 50.8 mm (2.0 in) | 21 December 2017 |
Period of Record Coverage
1896 to 2026| Year | Days with data | Share of year | Complete |
|---|---|---|---|
| 1896 | 335 | 92% | Yes |
| 1897 | 364 | 100% | Yes |
| 1898 | 362 | 99% | Yes |
| 1899 | 361 | 99% | Yes |
| 1900 | 362 | 99% | Yes |
| 1901 | 364 | 100% | Yes |
| 1902 | 364 | 100% | Yes |
| 1903 | 364 | 100% | Yes |
| 1904 | 330 | 90% | Yes |
| 1905 | 270 | 74% | No |
| 1906 | 335 | 92% | Yes |
| 1907 | 361 | 99% | Yes |
| 1908 | 91 | 25% | No |
| 1914 | 279 | 76% | No |
| 1915 | 298 | 82% | No |
| 1916 | 171 | 47% | No |
| 1917 | 253 | 69% | No |
| 1918 | 82 | 22% | No |
| 1919 | 61 | 17% | No |
| 1934 | 73 | 20% | No |
| 1937 | 66 | 18% | No |
| 1938 | 271 | 74% | No |
| 1939 | 286 | 78% | No |
| 1940 | 366 | 100% | Yes |
| 1941 | 365 | 100% | Yes |
| 1942 | 364 | 100% | Yes |
| 1943 | 363 | 99% | Yes |
| 1944 | 364 | 99% | Yes |
| 1945 | 356 | 98% | Yes |
| 1946 | 344 | 94% | Yes |
| 1947 | 359 | 98% | Yes |
| 1948 | 357 | 98% | Yes |
| 1949 | 357 | 98% | Yes |
| 1950 | 353 | 97% | Yes |
| 1951 | 363 | 99% | Yes |
| 1952 | 342 | 93% | Yes |
| 1953 | 296 | 81% | No |
| 1954 | 285 | 78% | No |
| 1955 | 329 | 90% | Yes |
| 1956 | 307 | 84% | No |
| 1957 | 346 | 95% | Yes |
| 1958 | 302 | 83% | No |
| 1959 | 299 | 82% | No |
| 1960 | 287 | 78% | No |
| 1961 | 358 | 98% | Yes |
| 1962 | 332 | 91% | Yes |
| 1963 | 355 | 97% | Yes |
| 1964 | 362 | 99% | Yes |
| 1965 | 362 | 99% | Yes |
| 1966 | 358 | 98% | Yes |
| 1967 | 361 | 99% | Yes |
| 1968 | 359 | 98% | Yes |
| 1969 | 355 | 97% | Yes |
| 1970 | 365 | 100% | Yes |
| 1971 | 359 | 98% | Yes |
| 1972 | 363 | 99% | Yes |
| 1973 | 360 | 99% | Yes |
| 1974 | 365 | 100% | Yes |
| 1975 | 350 | 96% | Yes |
| 1976 | 362 | 99% | Yes |
| 1977 | 365 | 100% | Yes |
| 1978 | 365 | 100% | Yes |
| 1979 | 200 | 55% | No |
| 1980 | 54 | 15% | No |
| 1981 | 353 | 97% | Yes |
| 1982 | 287 | 79% | No |
| 1983 | 270 | 74% | No |
| 1984 | 244 | 67% | No |
| 1985 | 358 | 98% | Yes |
| 1986 | 364 | 100% | Yes |
| 1987 | 364 | 100% | Yes |
| 1988 | 366 | 100% | Yes |
| 1989 | 326 | 89% | No |
| 1990 | 338 | 93% | Yes |
| 1991 | 323 | 88% | No |
| 1992 | 360 | 98% | Yes |
| 1993 | 363 | 99% | Yes |
| 1994 | 355 | 97% | Yes |
| 1995 | 364 | 100% | Yes |
| 1996 | 366 | 100% | Yes |
| 1997 | 361 | 99% | Yes |
| 1998 | 359 | 98% | Yes |
| 1999 | 362 | 99% | Yes |
| 2000 | 342 | 93% | Yes |
| 2001 | 359 | 98% | Yes |
| 2002 | 358 | 98% | Yes |
| 2003 | 360 | 99% | Yes |
| 2004 | 343 | 94% | Yes |
| 2005 | 357 | 98% | Yes |
| 2006 | 364 | 100% | Yes |
| 2007 | 355 | 97% | Yes |
| 2008 | 363 | 99% | Yes |
| 2009 | 343 | 94% | Yes |
| 2010 | 308 | 84% | No |
| 2011 | 57 | 16% | No |
| 2012 | 1 | 0% | No |
| 2017 | 180 | 49% | No |
| 2018 | 362 | 99% | Yes |
| 2019 | 365 | 100% | Yes |
| 2020 | 365 | 100% | Yes |
| 2021 | 365 | 100% | Yes |
| 2022 | 358 | 98% | Yes |
| 2023 | 365 | 100% | Yes |
| 2024 | 366 | 100% | Yes |
| 2025 | 364 | 100% | Yes |
| 2026 | 268 | 73% | No |
Latest Records
20| Date | Station | Record | Value | Beat old record by | Old record stood | Significance |
|---|---|---|---|---|---|---|
| 5 October 2026 | Riggins, US | daily high max (Provisional) | 32.8 C (91.0 F) | 1.1 C (2.0 F) | 55 years | 28 of 100 (Routine) |
| 4 September 2026 | Riggins, US | daily rain (Provisional) | 31.0 mm (1.2 in) | 7.1 mm (0.28 in) | 56 years | 39 of 100 (Notable) |
| 3 September 2026 | Riggins, US | daily low max (Provisional) | 17.2 C (63.0 F) | 1.7 C (3.1 F) | 25 years | 19 of 100 (Routine) |
| 6 August 2026 | Riggins, US | daily low min | 7.8 C (46.0 F) | 1.1 C (2.0 F) | 56 years | 30 of 100 (Routine) |
| 5 August 2026 | Riggins, US | daily low min | 7.2 C (45.0 F) | 0.6 C (1.1 F) | 129 years | 41 of 100 (Notable) |
| 29 June 2026 | Riggins, US | daily low max | 12.8 C (55.0 F) | 2.8 C (5.0 F) | 109 years | 44 of 100 (Notable) |
| 27 June 2026 | Riggins, US | daily rain | 23.1 mm (0.9 in) | 8.4 mm (0.33 in) | 37 years | 20 of 100 (Routine) |
| 11 June 2026 | Riggins, US | daily low min (Tie) | 1.1 C (34.0 F) | tie | 124 years | 10 of 100 (Routine) |
| 18 May 2026 | Riggins, US | daily low min (Tie) | 0.0 C (32.0 F) | tie | 129 years | 10 of 100 (Routine) |
| 27 April 2026 | Riggins, US | daily low min | -1.7 C (28.9 F) | 0.6 C (1.1 F) | 127 years | 41 of 100 (Notable) |
| 25 April 2026 | Riggins, US | daily low min | -2.2 C (28.0 F) | 0.5 C (0.9 F) | 4 years | 12 of 100 (Routine) |
| 21 March 2026 | Riggins, US | monthly high max (Tie) | 28.3 C (82.9 F) | tie | 65 years | 9 of 100 (Routine) |
| 20 March 2026 | Riggins, US | daily high max | 26.1 C (79.0 F) | 0.5 C (0.9 F) | 28 years | 18 of 100 (Routine) |
| 19 March 2026 | Riggins, US | daily high max | 26.7 C (80.1 F) | 2.3 C (4.1 F) | 87 years | 40 of 100 (Notable) |
| 9 February 2026 | Riggins, US | daily rain | 11.4 mm (0.4 in) | 1.2 mm (0.05 in) | 107 years | 20 of 100 (Routine) |
| 13 January 2026 | Riggins, US | daily high max (Tie) | 11.7 C (53.1 F) | tie | 80 years | 8 of 100 (Routine) |
| 4 January 2026 | Riggins, US | daily high min (Tie) | 6.7 C (44.1 F) | tie | 124 years | 10 of 100 (Routine) |
| 28 December 2025 | Riggins, US | daily low min (Tie) | -10.6 C (12.9 F) | tie | 108 years | 10 of 100 (Routine) |
| 26 December 2025 | Riggins, US | daily rain | 13.5 mm (0.5 in) | 0.8 mm (0.03 in) | 60 years | 20 of 100 (Routine) |
| 25 December 2025 | Riggins, US | daily high max | 14.4 C (57.9 F) | 1.6 C (2.9 F) | 123 years | 43 of 100 (Notable) |
Climate Trend
62 complete years, 1897 to 2025| Year | Annual mean temperature | Difference from the station mean |
|---|---|---|
| 1897 | 11.1 C | -0.82 C |
| 1898 | 10.3 C | -1.54 C |
| 1899 | 9.9 C | -1.94 C |
| 1900 | 11.1 C | -0.79 C |
| 1901 | 10.5 C | -1.37 C |
| 1902 | 10.3 C | -1.56 C |
| 1903 | 10.6 C | -1.30 C |
| 1940 | 13.5 C | +1.67 C |
| 1941 | 12.8 C | +0.95 C |
| 1943 | 11.9 C | +0.06 C |
| 1944 | 12.4 C | +0.54 C |
| 1945 | 12.3 C | +0.38 C |
| 1946 | 12.4 C | +0.51 C |
| 1947 | 12.6 C | +0.69 C |
| 1948 | 11.2 C | -0.68 C |
| 1949 | 12.0 C | +0.13 C |
| 1950 | 11.8 C | -0.07 C |
| 1951 | 11.9 C | +0.02 C |
| 1955 | 10.9 C | -1.00 C |
| 1957 | 11.7 C | -0.21 C |
| 1961 | 13.5 C | +1.67 C |
| 1963 | 13.3 C | +1.38 C |
| 1964 | 11.9 C | +0.03 C |
| 1965 | 12.6 C | +0.74 C |
| 1966 | 13.5 C | +1.65 C |
| 1967 | 13.1 C | +1.19 C |
| 1968 | 12.4 C | +0.56 C |
| 1969 | 12.6 C | +0.75 C |
| 1970 | 12.5 C | +0.61 C |
| 1971 | 12.1 C | +0.21 C |
| 1972 | 12.2 C | +0.32 C |
| 1973 | 12.9 C | +1.03 C |
| 1974 | 12.4 C | +0.55 C |
| 1976 | 11.6 C | -0.29 C |
| 1977 | 12.3 C | +0.41 C |
| 1978 | 11.3 C | -0.56 C |
| 1981 | 13.1 C | +1.22 C |
| 1985 | 11.8 C | -0.11 C |
| 1986 | 13.1 C | +1.20 C |
| 1987 | 13.0 C | +1.09 C |
| 1988 | 12.7 C | +0.83 C |
| 1990 | 13.5 C | +1.61 C |
| 1992 | 13.2 C | +1.34 C |
| 1993 | 11.1 C | -0.80 C |
| 1994 | 12.0 C | +0.15 C |
| 1995 | 11.4 C | -0.44 C |
| 1996 | 11.5 C | -0.39 C |
| 1997 | 11.4 C | -0.48 C |
| 1998 | 12.1 C | +0.21 C |
| 1999 | 11.2 C | -0.72 C |
| 2006 | 12.5 C | +0.66 C |
| 2007 | 12.5 C | +0.66 C |
| 2008 | 11.8 C | -0.06 C |
| 2009 | 11.6 C | -0.30 C |
| 2018 | 10.8 C | -1.12 C |
| 2019 | 9.9 C | -1.95 C |
| 2020 | 10.6 C | -1.28 C |
| 2021 | 11.1 C | -0.82 C |
| 2022 | 9.9 C | -1.97 C |
| 2023 | 10.6 C | -1.25 C |
| 2024 | 11.2 C | -0.68 C |
| 2025 | 11.6 C | -0.26 C |
The fitted trend in annual mean temperature here over 1897 to 2025 is 0.02 C (-0.05 to 0.09) per decade. The interval includes zero, so the trend is not clearly different from zero. In Fahrenheit: 0.03 F (-0.10 to 0.16) per decade. The slope is a straight line fitted to 62 complete years; the brackets give its 95 percent interval.
| Measure | Per decade (C) | Per decade (F) | Period | Complete years | Reading |
|---|---|---|---|---|---|
| Annual mean temperature | 0.02 C (-0.05 to 0.09) per decade | 0.03 F (-0.10 to 0.16) per decade | 1897 to 2025 | 62 | Not clearly different from zero |
| Mean daily maximum | 0.06 C (-0.02 to 0.13) per decade | 0.10 F (-0.03 to 0.23) per decade | 1897 to 2025 | 62 | Not clearly different from zero |
| Mean daily minimum | -0.02 C (-0.10 to 0.06) per decade | -0.03 F (-0.18 to 0.11) per decade | 1897 to 2025 | 62 | 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
1896 to 2026| Measure | Record | Year of the record | Median year | Years with a value |
|---|---|---|---|---|
| Hottest day (TXx) | 46.1 C (115.0 F) | 1967 | 40.9 C (105.5 F) | 106 |
| Coldest night (TNn) | -23.3 C (-9.9 F) | 1957 | -13.9 C (7.0 F) | 106 |
| Wettest day (Rx1day) | 63.2 mm (2.5 in) | 1978 | 24.0 mm (0.9 in) | 112 |
| Wettest five days (Rx5day) | 104.4 mm (4.1 in) | 2017 | 40.6 mm (1.6 in) | 112 |
| Longest dry spell (CDD) | 76 days | 1930 | 32 days | 112 |
Hottest day (TXx)
| Year | Hottest day (TXx) |
|---|---|
| 1896 | 41.7 C (107.1 F) |
| 1897 | 41.1 C (106.0 F) |
| 1898 | 43.3 C (109.9 F) |
| 1899 | 41.1 C (106.0 F) |
| 1900 | 41.1 C (106.0 F) |
| 1901 | 40.0 C (104.0 F) |
| 1902 | 37.8 C (100.0 F) |
| 1903 | 39.4 C (102.9 F) |
| 1904 | 38.9 C (102.0 F) |
| 1905 | 33.9 C (93.0 F) |
| 1906 | 40.6 C (105.1 F) |
| 1907 | 38.9 C (102.0 F) |
| 1908 | 21.1 C (70.0 F) |
| 1914 | 37.8 C (100.0 F) |
| 1915 | 38.3 C (100.9 F) |
| 1916 | 36.7 C (98.1 F) |
| 1917 | 37.2 C (99.0 F) |
| 1918 | 31.7 C (89.1 F) |
| 1919 | 25.0 C (77.0 F) |
| 1928 | n/a |
| 1930 | n/a |
| 1931 | n/a |
| 1932 | n/a |
| 1933 | n/a |
| 1934 | 41.1 C (106.0 F) |
| 1935 | n/a |
| 1936 | n/a |
| 1937 | 27.2 C (81.0 F) |
| 1938 | 40.6 C (105.1 F) |
| 1939 | 42.2 C (108.0 F) |
| 1940 | 42.2 C (108.0 F) |
| 1941 | 40.6 C (105.1 F) |
| 1942 | 41.1 C (106.0 F) |
| 1943 | 40.0 C (104.0 F) |
| 1944 | 39.4 C (102.9 F) |
| 1945 | 41.1 C (106.0 F) |
| 1946 | 43.3 C (109.9 F) |
| 1947 | 41.1 C (106.0 F) |
| 1948 | 39.4 C (102.9 F) |
| 1949 | 42.8 C (109.0 F) |
| 1950 | 43.3 C (109.9 F) |
| 1951 | 42.8 C (109.0 F) |
| 1952 | 39.4 C (102.9 F) |
| 1953 | 43.3 C (109.9 F) |
| 1954 | 38.9 C (102.0 F) |
| 1955 | 41.1 C (106.0 F) |
| 1956 | 39.4 C (102.9 F) |
| 1957 | 38.9 C (102.0 F) |
| 1958 | 40.0 C (104.0 F) |
| 1959 | 43.9 C (111.0 F) |
| 1960 | 42.8 C (109.0 F) |
| 1961 | 45.6 C (114.1 F) |
| 1962 | 45.6 C (114.1 F) |
| 1963 | 41.1 C (106.0 F) |
| 1964 | 38.9 C (102.0 F) |
| 1965 | 40.6 C (105.1 F) |
| 1966 | 42.2 C (108.0 F) |
| 1967 | 46.1 C (115.0 F) |
| 1968 | 40.6 C (105.1 F) |
| 1969 | 44.4 C (111.9 F) |
| 1970 | 41.7 C (107.1 F) |
| 1971 | 43.9 C (111.0 F) |
| 1972 | 40.6 C (105.1 F) |
| 1973 | 43.3 C (109.9 F) |
| 1974 | 41.7 C (107.1 F) |
| 1975 | 40.0 C (104.0 F) |
| 1976 | 40.0 C (104.0 F) |
| 1977 | 41.1 C (106.0 F) |
| 1978 | 40.0 C (104.0 F) |
| 1979 | 41.1 C (106.0 F) |
| 1980 | 21.7 C (71.1 F) |
| 1981 | 41.1 C (106.0 F) |
| 1982 | 40.0 C (104.0 F) |
| 1983 | 41.7 C (107.1 F) |
| 1984 | 41.1 C (106.0 F) |
| 1985 | 42.8 C (109.0 F) |
| 1986 | 42.2 C (108.0 F) |
| 1987 | 40.6 C (105.1 F) |
| 1988 | 40.0 C (104.0 F) |
| 1989 | 40.6 C (105.1 F) |
| 1990 | 43.3 C (109.9 F) |
| 1991 | 41.7 C (107.1 F) |
| 1992 | 41.7 C (107.1 F) |
| 1993 | 37.2 C (99.0 F) |
| 1994 | 41.1 C (106.0 F) |
| 1995 | 37.8 C (100.0 F) |
| 1996 | 40.6 C (105.1 F) |
| 1997 | 38.3 C (100.9 F) |
| 1998 | 40.0 C (104.0 F) |
| 1999 | 40.6 C (105.1 F) |
| 2000 | 42.2 C (108.0 F) |
| 2001 | 42.2 C (108.0 F) |
| 2002 | 45.0 C (113.0 F) |
| 2003 | 43.3 C (109.9 F) |
| 2004 | 41.1 C (106.0 F) |
| 2005 | 41.1 C (106.0 F) |
| 2006 | 42.8 C (109.0 F) |
| 2007 | 42.8 C (109.0 F) |
| 2008 | 42.2 C (108.0 F) |
| 2009 | 40.6 C (105.1 F) |
| 2010 | 40.6 C (105.1 F) |
| 2011 | 38.9 C (102.0 F) |
| 2012 | 0.0 C (32.0 F) |
| 2017 | 40.6 C (105.1 F) |
| 2018 | 42.8 C (109.0 F) |
| 2019 | 38.9 C (102.0 F) |
| 2020 | 41.7 C (107.1 F) |
| 2021 | 41.7 C (107.1 F) |
| 2022 | 40.6 C (105.1 F) |
| 2023 | 41.1 C (106.0 F) |
| 2024 | 40.6 C (105.1 F) |
| 2025 | 38.3 C (100.9 F) |
| 2026 | 40.0 C (104.0 F) |
Coldest night (TNn)
| Year | Coldest night (TNn) |
|---|---|
| 1896 | -18.9 C (-2.0 F) |
| 1897 | -19.4 C (-2.9 F) |
| 1898 | -15.0 C (5.0 F) |
| 1899 | -22.2 C (-8.0 F) |
| 1900 | -14.4 C (6.1 F) |
| 1901 | -13.9 C (7.0 F) |
| 1902 | -17.8 C (0.0 F) |
| 1903 | -13.3 C (8.1 F) |
| 1904 | -10.6 C (12.9 F) |
| 1905 | -19.4 C (-2.9 F) |
| 1906 | -16.1 C (3.0 F) |
| 1907 | -15.0 C (5.0 F) |
| 1908 | -15.0 C (5.0 F) |
| 1914 | -18.9 C (-2.0 F) |
| 1915 | -17.8 C (0.0 F) |
| 1916 | -16.7 C (1.9 F) |
| 1917 | -16.1 C (3.0 F) |
| 1918 | -15.0 C (5.0 F) |
| 1919 | -15.6 C (3.9 F) |
| 1928 | n/a |
| 1930 | n/a |
| 1931 | n/a |
| 1932 | n/a |
| 1933 | n/a |
| 1934 | -2.8 C (27.0 F) |
| 1935 | n/a |
| 1936 | n/a |
| 1937 | -6.7 C (19.9 F) |
| 1938 | -8.9 C (16.0 F) |
| 1939 | -11.7 C (10.9 F) |
| 1940 | -10.6 C (12.9 F) |
| 1941 | -10.6 C (12.9 F) |
| 1942 | -19.4 C (-2.9 F) |
| 1943 | -21.1 C (-6.0 F) |
| 1944 | -13.3 C (8.1 F) |
| 1945 | -11.1 C (12.0 F) |
| 1946 | -11.7 C (10.9 F) |
| 1947 | -15.6 C (3.9 F) |
| 1948 | -15.6 C (3.9 F) |
| 1949 | -20.0 C (-4.0 F) |
| 1950 | -20.6 C (-5.1 F) |
| 1951 | -16.1 C (3.0 F) |
| 1952 | -9.4 C (15.1 F) |
| 1953 | -5.6 C (21.9 F) |
| 1954 | -12.8 C (9.0 F) |
| 1955 | -18.9 C (-2.0 F) |
| 1956 | -19.4 C (-2.9 F) |
| 1957 | -23.3 C (-9.9 F) |
| 1958 | -9.4 C (15.1 F) |
| 1959 | -17.8 C (0.0 F) |
| 1960 | -16.7 C (1.9 F) |
| 1961 | -13.3 C (8.1 F) |
| 1962 | -18.3 C (-0.9 F) |
| 1963 | -21.1 C (-6.0 F) |
| 1964 | -22.2 C (-8.0 F) |
| 1965 | -11.1 C (12.0 F) |
| 1966 | -9.4 C (15.1 F) |
| 1967 | -13.9 C (7.0 F) |
| 1968 | -20.0 C (-4.0 F) |
| 1969 | -16.7 C (1.9 F) |
| 1970 | -11.1 C (12.0 F) |
| 1971 | -10.0 C (14.0 F) |
| 1972 | -20.6 C (-5.1 F) |
| 1973 | -15.6 C (3.9 F) |
| 1974 | -16.7 C (1.9 F) |
| 1975 | -12.2 C (10.0 F) |
| 1976 | -13.3 C (8.1 F) |
| 1977 | -12.8 C (9.0 F) |
| 1978 | -19.4 C (-2.9 F) |
| 1979 | -21.7 C (-7.1 F) |
| 1980 | -5.6 C (21.9 F) |
| 1981 | -7.2 C (19.0 F) |
| 1982 | -15.0 C (5.0 F) |
| 1983 | -21.1 C (-6.0 F) |
| 1984 | -11.1 C (12.0 F) |
| 1985 | -15.0 C (5.0 F) |
| 1986 | -7.8 C (18.0 F) |
| 1987 | -12.2 C (10.0 F) |
| 1988 | -13.9 C (7.0 F) |
| 1989 | -21.1 C (-6.0 F) |
| 1990 | -18.9 C (-2.0 F) |
| 1991 | -13.3 C (8.1 F) |
| 1992 | -10.6 C (12.9 F) |
| 1993 | -12.8 C (9.0 F) |
| 1994 | -8.3 C (17.1 F) |
| 1995 | -10.0 C (14.0 F) |
| 1996 | -13.9 C (7.0 F) |
| 1997 | -11.1 C (12.0 F) |
| 1998 | -16.1 C (3.0 F) |
| 1999 | -9.4 C (15.1 F) |
| 2000 | -8.3 C (17.1 F) |
| 2001 | -7.8 C (18.0 F) |
| 2002 | -10.0 C (14.0 F) |
| 2003 | -9.4 C (15.1 F) |
| 2004 | -17.2 C (1.0 F) |
| 2005 | -11.7 C (10.9 F) |
| 2006 | -12.8 C (9.0 F) |
| 2007 | -13.3 C (8.1 F) |
| 2008 | -15.0 C (5.0 F) |
| 2009 | -16.1 C (3.0 F) |
| 2010 | -13.9 C (7.0 F) |
| 2011 | 5.0 C (41.0 F) |
| 2012 | -5.6 C (21.9 F) |
| 2017 | -13.3 C (8.1 F) |
| 2018 | -12.2 C (10.0 F) |
| 2019 | -13.9 C (7.0 F) |
| 2020 | -10.0 C (14.0 F) |
| 2021 | -11.7 C (10.9 F) |
| 2022 | -15.6 C (3.9 F) |
| 2023 | -18.3 C (-0.9 F) |
| 2024 | -20.6 C (-5.1 F) |
| 2025 | -18.3 C (-0.9 F) |
| 2026 | -10.0 C (14.0 F) |
Wettest day (Rx1day)
| Year | Wettest day (Rx1day) |
|---|---|
| 1896 | 17.3 mm (0.7 in) |
| 1897 | 26.7 mm (1.1 in) |
| 1898 | 21.8 mm (0.9 in) |
| 1899 | 21.8 mm (0.9 in) |
| 1900 | 36.1 mm (1.4 in) |
| 1901 | 16.0 mm (0.6 in) |
| 1902 | 20.8 mm (0.8 in) |
| 1903 | 25.4 mm (1.0 in) |
| 1904 | 38.1 mm (1.5 in) |
| 1905 | 30.5 mm (1.2 in) |
| 1906 | 44.5 mm (1.8 in) |
| 1907 | 26.7 mm (1.1 in) |
| 1908 | 10.4 mm (0.4 in) |
| 1914 | 21.1 mm (0.8 in) |
| 1915 | 21.8 mm (0.9 in) |
| 1916 | 26.9 mm (1.1 in) |
| 1917 | 34.3 mm (1.4 in) |
| 1918 | 22.9 mm (0.9 in) |
| 1919 | 20.6 mm (0.8 in) |
| 1928 | 14.5 mm (0.6 in) |
| 1930 | 27.9 mm (1.1 in) |
| 1931 | 18.8 mm (0.7 in) |
| 1932 | 26.7 mm (1.1 in) |
| 1933 | 43.2 mm (1.7 in) |
| 1934 | 32.3 mm (1.3 in) |
| 1935 | 20.8 mm (0.8 in) |
| 1936 | 24.6 mm (1.0 in) |
| 1937 | 18.0 mm (0.7 in) |
| 1938 | 38.1 mm (1.5 in) |
| 1939 | 23.1 mm (0.9 in) |
| 1940 | 28.4 mm (1.1 in) |
| 1941 | 19.1 mm (0.8 in) |
| 1942 | 18.5 mm (0.7 in) |
| 1943 | 19.8 mm (0.8 in) |
| 1944 | 21.6 mm (0.9 in) |
| 1945 | 21.6 mm (0.9 in) |
| 1946 | 43.2 mm (1.7 in) |
| 1947 | 24.6 mm (1.0 in) |
| 1948 | 33.8 mm (1.3 in) |
| 1949 | 20.6 mm (0.8 in) |
| 1950 | 20.1 mm (0.8 in) |
| 1951 | 26.7 mm (1.1 in) |
| 1952 | 25.4 mm (1.0 in) |
| 1953 | 18.5 mm (0.7 in) |
| 1954 | 31.2 mm (1.2 in) |
| 1955 | 24.4 mm (1.0 in) |
| 1956 | 31.8 mm (1.3 in) |
| 1957 | 23.6 mm (0.9 in) |
| 1958 | 29.2 mm (1.1 in) |
| 1959 | 26.7 mm (1.1 in) |
| 1960 | 31.5 mm (1.2 in) |
| 1961 | 20.1 mm (0.8 in) |
| 1962 | 33.5 mm (1.3 in) |
| 1963 | 16.8 mm (0.7 in) |
| 1964 | 21.6 mm (0.9 in) |
| 1965 | 40.1 mm (1.6 in) |
| 1966 | 25.7 mm (1.0 in) |
| 1967 | 27.7 mm (1.1 in) |
| 1968 | 20.3 mm (0.8 in) |
| 1969 | 21.6 mm (0.9 in) |
| 1970 | 23.9 mm (0.9 in) |
| 1971 | 16.5 mm (0.6 in) |
| 1972 | 19.8 mm (0.8 in) |
| 1973 | 16.8 mm (0.7 in) |
| 1974 | 22.9 mm (0.9 in) |
| 1975 | 30.5 mm (1.2 in) |
| 1976 | 16.5 mm (0.6 in) |
| 1977 | 20.3 mm (0.8 in) |
| 1978 | 63.2 mm (2.5 in) |
| 1979 | 19.6 mm (0.8 in) |
| 1980 | 20.6 mm (0.8 in) |
| 1981 | 33.0 mm (1.3 in) |
| 1982 | 14.5 mm (0.6 in) |
| 1983 | 18.3 mm (0.7 in) |
| 1984 | 20.8 mm (0.8 in) |
| 1985 | 26.2 mm (1.0 in) |
| 1986 | 24.1 mm (0.9 in) |
| 1987 | 19.1 mm (0.8 in) |
| 1988 | 21.1 mm (0.8 in) |
| 1989 | 25.4 mm (1.0 in) |
| 1990 | 44.5 mm (1.8 in) |
| 1991 | 10.4 mm (0.4 in) |
| 1992 | 18.5 mm (0.7 in) |
| 1993 | 20.8 mm (0.8 in) |
| 1994 | 20.3 mm (0.8 in) |
| 1995 | 24.9 mm (1.0 in) |
| 1996 | 19.1 mm (0.8 in) |
| 1997 | 34.0 mm (1.3 in) |
| 1998 | 29.2 mm (1.1 in) |
| 1999 | 21.8 mm (0.9 in) |
| 2000 | 20.6 mm (0.8 in) |
| 2001 | 18.0 mm (0.7 in) |
| 2002 | 35.6 mm (1.4 in) |
| 2003 | 44.7 mm (1.8 in) |
| 2004 | 26.2 mm (1.0 in) |
| 2005 | 30.5 mm (1.2 in) |
| 2006 | 24.1 mm (0.9 in) |
| 2007 | 18.3 mm (0.7 in) |
| 2008 | 16.8 mm (0.7 in) |
| 2009 | 27.9 mm (1.1 in) |
| 2010 | 21.6 mm (0.9 in) |
| 2011 | 14.7 mm (0.6 in) |
| 2012 | n/a |
| 2017 | 50.8 mm (2.0 in) |
| 2018 | 27.7 mm (1.1 in) |
| 2019 | 19.6 mm (0.8 in) |
| 2020 | 34.3 mm (1.4 in) |
| 2021 | 37.6 mm (1.5 in) |
| 2022 | 29.5 mm (1.2 in) |
| 2023 | 34.3 mm (1.4 in) |
| 2024 | 28.7 mm (1.1 in) |
| 2025 | 43.2 mm (1.7 in) |
| 2026 | 31.0 mm (1.2 in) |
Wettest five days (Rx5day)
| Year | Wettest five days (Rx5day) |
|---|---|
| 1896 | 34.1 mm (1.3 in) |
| 1897 | 33.9 mm (1.3 in) |
| 1898 | 49.5 mm (1.9 in) |
| 1899 | 26.1 mm (1.0 in) |
| 1900 | 57.2 mm (2.3 in) |
| 1901 | 39.3 mm (1.5 in) |
| 1902 | 38.4 mm (1.5 in) |
| 1903 | 49.0 mm (1.9 in) |
| 1904 | 38.1 mm (1.5 in) |
| 1905 | 38.1 mm (1.5 in) |
| 1906 | 44.5 mm (1.8 in) |
| 1907 | 38.9 mm (1.5 in) |
| 1908 | 19.0 mm (0.7 in) |
| 1914 | 35.5 mm (1.4 in) |
| 1915 | 44.6 mm (1.8 in) |
| 1916 | 43.3 mm (1.7 in) |
| 1917 | 52.3 mm (2.1 in) |
| 1918 | 25.4 mm (1.0 in) |
| 1919 | 42.8 mm (1.7 in) |
| 1928 | 26.9 mm (1.1 in) |
| 1930 | 58.2 mm (2.3 in) |
| 1931 | 32.1 mm (1.3 in) |
| 1932 | 29.0 mm (1.1 in) |
| 1933 | 43.2 mm (1.7 in) |
| 1934 | 41.0 mm (1.6 in) |
| 1935 | 30.7 mm (1.2 in) |
| 1936 | 32.5 mm (1.3 in) |
| 1937 | 37.8 mm (1.5 in) |
| 1938 | 48.5 mm (1.9 in) |
| 1939 | 41.9 mm (1.6 in) |
| 1940 | 54.8 mm (2.2 in) |
| 1941 | 35.1 mm (1.4 in) |
| 1942 | 29.2 mm (1.1 in) |
| 1943 | 26.4 mm (1.0 in) |
| 1944 | 38.6 mm (1.5 in) |
| 1945 | 54.3 mm (2.1 in) |
| 1946 | 62.8 mm (2.5 in) |
| 1947 | 40.1 mm (1.6 in) |
| 1948 | 54.5 mm (2.1 in) |
| 1949 | 43.4 mm (1.7 in) |
| 1950 | 27.7 mm (1.1 in) |
| 1951 | 51.3 mm (2.0 in) |
| 1952 | 38.6 mm (1.5 in) |
| 1953 | 41.9 mm (1.6 in) |
| 1954 | 45.5 mm (1.8 in) |
| 1955 | 39.2 mm (1.5 in) |
| 1956 | 46.5 mm (1.8 in) |
| 1957 | 49.6 mm (2.0 in) |
| 1958 | 41.3 mm (1.6 in) |
| 1959 | 34.0 mm (1.3 in) |
| 1960 | 35.8 mm (1.4 in) |
| 1961 | 34.4 mm (1.4 in) |
| 1962 | 90.9 mm (3.6 in) |
| 1963 | 23.7 mm (0.9 in) |
| 1964 | 50.1 mm (2.0 in) |
| 1965 | 77.5 mm (3.1 in) |
| 1966 | 33.1 mm (1.3 in) |
| 1967 | 52.0 mm (2.0 in) |
| 1968 | 28.6 mm (1.1 in) |
| 1969 | 29.2 mm (1.1 in) |
| 1970 | 30.7 mm (1.2 in) |
| 1971 | 35.1 mm (1.4 in) |
| 1972 | 21.9 mm (0.9 in) |
| 1973 | 36.3 mm (1.4 in) |
| 1974 | 29.7 mm (1.2 in) |
| 1975 | 39.3 mm (1.5 in) |
| 1976 | 45.7 mm (1.8 in) |
| 1977 | 37.3 mm (1.5 in) |
| 1978 | 74.6 mm (2.9 in) |
| 1979 | 39.4 mm (1.6 in) |
| 1980 | 33.8 mm (1.3 in) |
| 1981 | 50.3 mm (2.0 in) |
| 1982 | 33.8 mm (1.3 in) |
| 1983 | 30.5 mm (1.2 in) |
| 1984 | 35.3 mm (1.4 in) |
| 1985 | 50.9 mm (2.0 in) |
| 1986 | 41.4 mm (1.6 in) |
| 1987 | 38.6 mm (1.5 in) |
| 1988 | 36.6 mm (1.4 in) |
| 1989 | 43.0 mm (1.7 in) |
| 1990 | 59.7 mm (2.4 in) |
| 1991 | 23.1 mm (0.9 in) |
| 1992 | 27.5 mm (1.1 in) |
| 1993 | 44.2 mm (1.7 in) |
| 1994 | 34.8 mm (1.4 in) |
| 1995 | 41.9 mm (1.6 in) |
| 1996 | 57.4 mm (2.3 in) |
| 1997 | 63.6 mm (2.5 in) |
| 1998 | 68.3 mm (2.7 in) |
| 1999 | 40.2 mm (1.6 in) |
| 2000 | 46.7 mm (1.8 in) |
| 2001 | 35.1 mm (1.4 in) |
| 2002 | 41.4 mm (1.6 in) |
| 2003 | 49.0 mm (1.9 in) |
| 2004 | 47.8 mm (1.9 in) |
| 2005 | 52.1 mm (2.1 in) |
| 2006 | 34.8 mm (1.4 in) |
| 2007 | 41.1 mm (1.6 in) |
| 2008 | 31.4 mm (1.2 in) |
| 2009 | 39.9 mm (1.6 in) |
| 2010 | 45.7 mm (1.8 in) |
| 2011 | 14.7 mm (0.6 in) |
| 2012 | n/a |
| 2017 | 104.4 mm (4.1 in) |
| 2018 | 31.5 mm (1.2 in) |
| 2019 | 44.7 mm (1.8 in) |
| 2020 | 72.8 mm (2.9 in) |
| 2021 | 55.2 mm (2.2 in) |
| 2022 | 43.0 mm (1.7 in) |
| 2023 | 74.2 mm (2.9 in) |
| 2024 | 62.5 mm (2.5 in) |
| 2025 | 50.3 mm (2.0 in) |
| 2026 | 44.1 mm (1.7 in) |
Longest dry spell (CDD)
| Year | Longest dry spell (CDD) |
|---|---|
| 1896 | 25 days |
| 1897 | 40 days |
| 1898 | 44 days |
| 1899 | 25 days |
| 1900 | 25 days |
| 1901 | 49 days |
| 1902 | 39 days |
| 1903 | 49 days |
| 1904 | 41 days |
| 1905 | 27 days |
| 1906 | 45 days |
| 1907 | 22 days |
| 1908 | 12 days |
| 1914 | 35 days |
| 1915 | 18 days |
| 1916 | 19 days |
| 1917 | 21 days |
| 1918 | 13 days |
| 1919 | 18 days |
| 1928 | 27 days |
| 1930 | 76 days |
| 1931 | 74 days |
| 1932 | 18 days |
| 1933 | 50 days |
| 1934 | 34 days |
| 1935 | 35 days |
| 1936 | 52 days |
| 1937 | 33 days |
| 1938 | 22 days |
| 1939 | 37 days |
| 1940 | 38 days |
| 1941 | 18 days |
| 1942 | 38 days |
| 1943 | 36 days |
| 1944 | 47 days |
| 1945 | 56 days |
| 1946 | 22 days |
| 1947 | 25 days |
| 1948 | 20 days |
| 1949 | 31 days |
| 1950 | 20 days |
| 1951 | 42 days |
| 1952 | 53 days |
| 1953 | 32 days |
| 1954 | 27 days |
| 1955 | 44 days |
| 1956 | 26 days |
| 1957 | 22 days |
| 1958 | 30 days |
| 1959 | 30 days |
| 1960 | 45 days |
| 1961 | 44 days |
| 1962 | 45 days |
| 1963 | 36 days |
| 1964 | 17 days |
| 1965 | 28 days |
| 1966 | 62 days |
| 1967 | 35 days |
| 1968 | 23 days |
| 1969 | 73 days |
| 1970 | 37 days |
| 1971 | 30 days |
| 1972 | 20 days |
| 1973 | 32 days |
| 1974 | 62 days |
| 1975 | 24 days |
| 1976 | 27 days |
| 1977 | 39 days |
| 1978 | 50 days |
| 1979 | 23 days |
| 1980 | 21 days |
| 1981 | 60 days |
| 1982 | 23 days |
| 1983 | 19 days |
| 1984 | 32 days |
| 1985 | 53 days |
| 1986 | 34 days |
| 1987 | 43 days |
| 1988 | 30 days |
| 1989 | 24 days |
| 1990 | 51 days |
| 1991 | 60 days |
| 1992 | 34 days |
| 1993 | 46 days |
| 1994 | 25 days |
| 1995 | 21 days |
| 1996 | 31 days |
| 1997 | 16 days |
| 1998 | 22 days |
| 1999 | 28 days |
| 2000 | 35 days |
| 2001 | 51 days |
| 2002 | 28 days |
| 2003 | 30 days |
| 2004 | 20 days |
| 2005 | 45 days |
| 2006 | 32 days |
| 2007 | 35 days |
| 2008 | 21 days |
| 2009 | 28 days |
| 2010 | 22 days |
| 2011 | 12 days |
| 2012 | n/a |
| 2017 | 28 days |
| 2018 | 56 days |
| 2019 | 27 days |
| 2020 | 32 days |
| 2021 | 70 days |
| 2022 | 38 days |
| 2023 | 36 days |
| 2024 | 36 days |
| 2025 | 20 days |
| 2026 | 31 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
62 years with a frostAcross 62 years with a frost, the median last spring frost at Riggins falls on 24 April and the median first autumn frost on 18 October, which leaves a median of 175 days between them.
In 1974 to 2025 the median growing season was 177 days. That is 4 days more than in 1897 to 1971.
Fitted over all years, the growing season changes by +1.2 days per decade at this station.
| Measure | Median, all years | Earliest period (1897 to 1971) | Recent period (1974 to 2025) | Recent against earliest | Fitted trend |
|---|---|---|---|---|---|
| Last spring frost | 24 April | 23 April | 24 April | 1 day later | -0.9 days per decade |
| First autumn frost | 18 October | 17 October | 18 October | 1 day later | +0.3 days per decade |
| Growing days | 175 days | 173 days | 177 days | 4 days more | +1.2 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
83 years, 1897 to 2025A day with at least 24.0 mm (0.9 in) of rain is expected about once in 2 years. A day with at least 58.0 mm (2.3 in) of rain is expected about once in 100 years.
| Expected about once in | A day with at least | Note |
|---|---|---|
| 2 years | 24.0 mm (0.9 in) | |
| 5 years | 31.0 mm (1.2 in) | |
| 10 years | 36.4 mm (1.4 in) | |
| 25 years | 44.2 mm (1.7 in) | |
| 50 years | 50.7 mm (2.0 in) | |
| 100 years | 58.0 mm (2.3 in) | Longer than the 83 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, 83 years of values from 1897 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: 63.2 mm (2.5 in) in 1978; 44.7 mm (1.8 in) in 2003; 44.5 mm (1.8 in) in 1990.
Station Changes
No change in the annual mean temperature of this station was found against its neighbours.
Climate Twins
1997 to 2025 against 1961 to 1990Over 1997 to 2025, Riggins had a mean temperature of 11.3 C (52.3 F) and 457.8 mm (18.0 in) of rain a year. The 3 stations whose 1961 to 1990 climate was closest to that are Yreka (United States, 647 km away), New Harmony (United States, 915 km away) and Walnut Creek (United States, 1,198 km away).
| Twin station | Country | Distance away | Mean temperature, 1961-1990 | Rain a year, 1961-1990 | Climate difference |
|---|---|---|---|---|---|
| Yreka | United States | 647 km (402 mi) | 10.9 C (51.7 F) | 499.9 mm (19.7 in) | 0.76 |
| New Harmony | United States | 915 km (569 mi) | 11.1 C (51.9 F) | 469.0 mm (18.5 in) | 0.79 |
| Walnut Creek | United States | 1,198 km (744 mi) | 11.2 C (52.1 F) | 398.8 mm (15.7 in) | 0.84 |
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).