Bonners Ferry Weather Records (USC00101079)
Record envelope, standing records and threshold days for Bonners Ferry (USC00101079), Idaho, United States, with 120 years of record.
Key Facts for Bonners Ferry
- Bonners Ferry (USC00101079) is a weather station in Idaho, United States at 48.69 latitude and -116.31 longitude, 610 m (2,001 ft) above sea level.
- The station reports from 1907 to 2026, 120 years of record.
- 1,464 records set at Bonners Ferry still stand.
- Records are tracked for tmax, tmin, prcp, snow, snwd: an element needs 30 years of data to be eligible.
- Bonners Ferry set a daily record high maximum temperature of 36.7 C (98.1 F) on 27 August 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, 48.69 latitude, -116.31 longitude.
- Elevation: 610 m (2,001 ft).
- Period of record: 1907 to 2026, 120 years.
- Eligible elements: tmax, tmin, prcp, snow, snwd.
Daily Record Envelope and 2026
9 days at or beyond a record| Month | Highest record high | Lowest record low | 2026 highest maximum | 2026 lowest minimum |
|---|---|---|---|---|
| Jan | 12.8 C (55.0 F) | -33.9 C (-29.0 F) | 9.4 C (48.9 F) | -8.9 C (16.0 F) |
| Feb | 17.2 C (63.0 F) | -31.7 C (-25.1 F) | 10.6 C (51.1 F) | -6.7 C (19.9 F) |
| Mar | 23.9 C (75.0 F) | -24.4 C (-11.9 F) | 17.8 C (64.0 F) | -5.0 C (23.0 F) |
| Apr | 31.7 C (89.1 F) | -11.7 C (10.9 F) | 27.2 C (81.0 F) | -2.8 C (27.0 F) |
| May | 35.6 C (96.1 F) | -8.3 C (17.1 F) | 35.6 C (96.1 F) | 3.9 C (39.0 F) |
| Jun | 42.2 C (108.0 F) | -0.6 C (30.9 F) | 32.8 C (91.0 F) | 5.6 C (42.1 F) |
| Jul | 41.7 C (107.1 F) | 0.0 C (32.0 F) | 37.8 C (100.0 F) | 10.6 C (51.1 F) |
| Aug | 40.6 C (105.1 F) | -2.2 C (28.0 F) | 37.8 C (100.0 F) | 8.9 C (48.0 F) |
| Sep | 36.7 C (98.1 F) | -9.4 C (15.1 F) | 28.3 C (82.9 F) | 8.3 C (46.9 F) |
| Oct | 28.9 C (84.0 F) | -13.3 C (8.1 F) | n/a | n/a |
| Nov | 19.4 C (66.9 F) | -25.0 C (-13.0 F) | n/a | n/a |
| Dec | 15.0 C (59.0 F) | -36.1 C (-33.0 F) | n/a | n/a |
Which Years Hold Standing Records
1,464 standing records| Year set | Standing records |
|---|---|
| 1907 | 10 |
| 1908 | 16 |
| 1909 | 28 |
| 1910 | 31 |
| 1911 | 31 |
| 1912 | 24 |
| 1913 | 31 |
| 1914 | 19 |
| 1915 | 5 |
| 1916 | 2 |
| 1936 | 3 |
| 1937 | 18 |
| 1938 | 7 |
| 1939 | 17 |
| 1940 | 9 |
| 1941 | 18 |
| 1942 | 6 |
| 1943 | 16 |
| 1944 | 18 |
| 1945 | 23 |
| 1946 | 8 |
| 1947 | 17 |
| 1948 | 9 |
| 1949 | 24 |
| 1950 | 29 |
| 1951 | 13 |
| 1952 | 10 |
| 1953 | 15 |
| 1954 | 19 |
| 1955 | 33 |
| 1956 | 13 |
| 1957 | 17 |
| 1958 | 14 |
| 1959 | 11 |
| 1960 | 19 |
| 1961 | 20 |
| 1962 | 14 |
| 1963 | 15 |
| 1964 | 16 |
| 1965 | 10 |
| 1966 | 12 |
| 1967 | 14 |
| 1968 | 19 |
| 1969 | 6 |
| 1970 | 15 |
| 1971 | 17 |
| 1972 | 26 |
| 1973 | 8 |
| 1974 | 12 |
| 1975 | 19 |
| 1976 | 3 |
| 1977 | 13 |
| 1978 | 10 |
| 1979 | 14 |
| 1980 | 24 |
| 1981 | 8 |
| 1982 | 8 |
| 1983 | 16 |
| 1984 | 21 |
| 1985 | 28 |
| 1986 | 23 |
| 1987 | 17 |
| 1988 | 17 |
| 1989 | 8 |
| 1990 | 12 |
| 1991 | 11 |
| 1992 | 9 |
| 1993 | 18 |
| 1994 | 7 |
| 1995 | 11 |
| 1996 | 10 |
| 1997 | 8 |
| 1998 | 2 |
| 1999 | 12 |
| 2000 | 6 |
| 2001 | 10 |
| 2002 | 18 |
| 2003 | 11 |
| 2004 | 9 |
| 2005 | 7 |
| 2006 | 11 |
| 2007 | 7 |
| 2008 | 11 |
| 2009 | 2 |
| 2010 | 1 |
| 2011 | 19 |
| 2012 | 16 |
| 2013 | 10 |
| 2014 | 18 |
| 2015 | 28 |
| 2016 | 17 |
| 2017 | 7 |
| 2018 | 7 |
| 2019 | 8 |
| 2020 | 13 |
| 2021 | 27 |
| 2022 | 12 |
| 2023 | 16 |
| 2024 | 15 |
| 2025 | 29 |
| 2026 | 13 |
All-Time Record Progression
11 new records| Date | Kind | Detail |
|---|---|---|
| 1957-02-23 | Record daily snowfall | Record daily snowfall 36.8 cm (14.5 in) |
| 1959-07-24 | Record high minimum temperature | Record high minimum temperature 20.0 C (68.0 F) |
| 1966-01-02 | Record daily snowfall | Record daily snowfall 48.3 cm (19.0 in) |
| 1968-12-30 | Record low maximum temperature | Record low maximum temperature -23.3 C (-9.9 F) |
| 1968-12-30 | Record low minimum temperature | Record low minimum temperature -36.1 C (-33.0 F) |
| 1996-12-29 | Record snow depth | Record snow depth 139.7 cm (55.0 in) |
| 1999-01-27 | Record daily precipitation | Record daily precipitation 71.1 mm (2.8 in) |
| 2007-07-24 | Record high minimum temperature | Record high minimum temperature 21.7 C (71.1 F) |
| 2007-12-02 | Record daily snowfall | Record daily snowfall 50.8 cm (20.0 in) |
| 2015-06-28 | Record high maximum temperature | Record high maximum temperature 40.6 C (105.1 F) |
| 2021-06-30 | Record high maximum temperature | Record high maximum temperature 42.2 C (108.0 F) |
Wettest Day of Each Month
Jan: 71.1 mm (2.8 in)| Month | Record daily precipitation (mm) | Date |
|---|---|---|
| Jan | 71.1 mm (2.8 in) | 27 January 1999 |
| Feb | 40.1 mm (1.6 in) | 6 February 2017 |
| Mar | 35.8 mm (1.4 in) | 3 March 1987 |
| Apr | 27.4 mm (1.1 in) | 22 April 1986 |
| May | 52.8 mm (2.1 in) | 27 May 1998 |
| Jun | 46.7 mm (1.8 in) | 20 June 2013 |
| Jul | 30.2 mm (1.2 in) | 14 July 2012 |
| Aug | 33.8 mm (1.3 in) | 7 August 1911 |
| Sep | 53.3 mm (2.1 in) | 18 September 1968 |
| Oct | 50.8 mm (2.0 in) | 30 October 2006 |
| Nov | 70.6 mm (2.8 in) | 18 November 1946 |
| Dec | 68.6 mm (2.7 in) | 2 December 2010 |
Period of Record Coverage
1907 to 2026| Year | Days with data | Share of year | Complete |
|---|---|---|---|
| 1907 | 245 | 67% | No |
| 1908 | 364 | 99% | Yes |
| 1909 | 364 | 100% | Yes |
| 1910 | 362 | 99% | Yes |
| 1911 | 364 | 100% | Yes |
| 1912 | 333 | 91% | Yes |
| 1913 | 365 | 100% | Yes |
| 1914 | 364 | 100% | Yes |
| 1915 | 364 | 100% | Yes |
| 1916 | 60 | 16% | No |
| 1936 | 82 | 22% | No |
| 1937 | 365 | 100% | Yes |
| 1938 | 365 | 100% | Yes |
| 1939 | 365 | 100% | Yes |
| 1940 | 366 | 100% | Yes |
| 1941 | 365 | 100% | Yes |
| 1942 | 365 | 100% | Yes |
| 1943 | 365 | 100% | Yes |
| 1944 | 363 | 99% | Yes |
| 1945 | 345 | 95% | Yes |
| 1946 | 273 | 75% | No |
| 1947 | 362 | 99% | Yes |
| 1948 | 365 | 100% | Yes |
| 1949 | 355 | 97% | Yes |
| 1950 | 359 | 98% | Yes |
| 1951 | 346 | 95% | Yes |
| 1952 | 334 | 91% | Yes |
| 1953 | 286 | 78% | No |
| 1954 | 349 | 96% | Yes |
| 1955 | 340 | 93% | Yes |
| 1956 | 352 | 96% | Yes |
| 1957 | 330 | 90% | Yes |
| 1958 | 361 | 99% | Yes |
| 1959 | 358 | 98% | Yes |
| 1960 | 362 | 99% | Yes |
| 1961 | 352 | 96% | Yes |
| 1962 | 359 | 98% | Yes |
| 1963 | 359 | 98% | Yes |
| 1964 | 361 | 99% | Yes |
| 1965 | 360 | 99% | Yes |
| 1966 | 358 | 98% | Yes |
| 1967 | 361 | 99% | Yes |
| 1968 | 358 | 98% | Yes |
| 1969 | 353 | 97% | Yes |
| 1970 | 362 | 99% | Yes |
| 1971 | 361 | 99% | Yes |
| 1972 | 362 | 99% | Yes |
| 1973 | 360 | 99% | Yes |
| 1974 | 350 | 96% | Yes |
| 1975 | 353 | 97% | Yes |
| 1976 | 355 | 97% | Yes |
| 1977 | 356 | 98% | Yes |
| 1978 | 351 | 96% | Yes |
| 1979 | 363 | 99% | Yes |
| 1980 | 366 | 100% | Yes |
| 1981 | 364 | 100% | Yes |
| 1982 | 362 | 99% | Yes |
| 1983 | 362 | 99% | Yes |
| 1984 | 366 | 100% | Yes |
| 1985 | 364 | 100% | Yes |
| 1986 | 365 | 100% | Yes |
| 1987 | 362 | 99% | Yes |
| 1988 | 362 | 99% | Yes |
| 1989 | 272 | 75% | No |
| 1990 | 275 | 75% | No |
| 1991 | 353 | 97% | Yes |
| 1992 | 360 | 98% | Yes |
| 1993 | 318 | 87% | No |
| 1994 | 362 | 99% | Yes |
| 1995 | 361 | 99% | Yes |
| 1996 | 361 | 99% | Yes |
| 1997 | 362 | 99% | Yes |
| 1998 | 359 | 98% | Yes |
| 1999 | 360 | 99% | Yes |
| 2000 | 351 | 96% | Yes |
| 2001 | 348 | 95% | Yes |
| 2002 | 342 | 94% | Yes |
| 2003 | 259 | 71% | No |
| 2004 | 328 | 90% | No |
| 2005 | 348 | 95% | Yes |
| 2006 | 302 | 83% | No |
| 2007 | 289 | 79% | No |
| 2008 | 310 | 85% | No |
| 2009 | 156 | 43% | No |
| 2010 | 88 | 24% | No |
| 2011 | 362 | 99% | Yes |
| 2012 | 365 | 100% | Yes |
| 2013 | 362 | 99% | Yes |
| 2014 | 344 | 94% | Yes |
| 2015 | 364 | 100% | Yes |
| 2016 | 364 | 99% | Yes |
| 2017 | 364 | 100% | Yes |
| 2018 | 363 | 99% | Yes |
| 2019 | 360 | 99% | Yes |
| 2020 | 359 | 98% | Yes |
| 2021 | 353 | 97% | Yes |
| 2022 | 358 | 98% | Yes |
| 2023 | 353 | 97% | Yes |
| 2024 | 328 | 90% | No |
| 2025 | 354 | 97% | Yes |
| 2026 | 257 | 70% | No |
Latest Records
20| Date | Station | Record | Value | Beat old record by | Old record stood | Significance |
|---|---|---|---|---|---|---|
| 27 August 2026 | Bonners Ferry, US | daily high max (Provisional) | 36.7 C (98.1 F) | 0.6 C (1.1 F) | 0 years | 11 of 100 (Routine) |
| 27 August 2026 | Bonners Ferry, US | daily high min (Tie, Provisional) | 14.4 C (57.9 F) | tie | 4 years | 2 of 100 (Routine) |
| 23 August 2026 | Bonners Ferry, US | daily high max (Tie, Provisional) | 35.6 C (96.1 F) | tie | 56 years | 6 of 100 (Routine) |
| 22 August 2026 | Bonners Ferry, US | daily high max (Provisional) | 37.8 C (100.0 F) | 2.2 C (4.0 F) | 69 years | 34 of 100 (Routine) |
| 21 August 2026 | Bonners Ferry, US | daily high max (Provisional) | 36.1 C (97.0 F) | 0.5 C (0.9 F) | 68 years | 31 of 100 (Routine) |
| 8 August 2026 | Bonners Ferry, US | daily high max (Tie) | 36.1 C (97.0 F) | tie | 53 years | 6 of 100 (Routine) |
| 26 July 2026 | Bonners Ferry, US | daily high min | 16.1 C (61.0 F) | 0.5 C (0.9 F) | 88 years | 37 of 100 (Notable) |
| 25 July 2026 | Bonners Ferry, US | daily high min (Tie) | 17.2 C (63.0 F) | tie | 32 years | 4 of 100 (Routine) |
| 22 July 2026 | Bonners Ferry, US | daily high min (Tie) | 17.2 C (63.0 F) | tie | 1 year | 2 of 100 (Routine) |
| 18 July 2026 | Bonners Ferry, US | daily high min | 18.3 C (64.9 F) | 0.5 C (0.9 F) | 1 year | 11 of 100 (Routine) |
| 11 July 2026 | Bonners Ferry, US | daily high min (Tie) | 17.2 C (63.0 F) | tie | 11 years | 3 of 100 (Routine) |
| 4 July 2026 | Bonners Ferry, US | daily high min (Tie) | 15.6 C (60.1 F) | tie | 76 years | 8 of 100 (Routine) |
| 17 June 2026 | Bonners Ferry, US | daily high max (Tie) | 32.2 C (90.0 F) | tie | 64 years | 7 of 100 (Routine) |
| 30 May 2026 | Bonners Ferry, US | daily high min | 15.0 C (59.0 F) | 2.2 C (4.0 F) | 64 years | 35 of 100 (Notable) |
| 29 May 2026 | Bonners Ferry, US | daily high min | 14.4 C (57.9 F) | 1.6 C (2.9 F) | 87 years | 40 of 100 (Notable) |
| 29 May 2026 | Bonners Ferry, US | monthly high max | 35.6 C (96.1 F) | 0.6 C (1.1 F) | 39 years | 32 of 100 (Routine) |
| 28 May 2026 | Bonners Ferry, US | daily high min | 14.4 C (57.9 F) | 0.5 C (0.9 F) | 77 years | 34 of 100 (Routine) |
| 13 April 2026 | Bonners Ferry, US | daily high min (Tie) | 7.2 C (45.0 F) | tie | 24 years | 4 of 100 (Routine) |
| 20 March 2026 | Bonners Ferry, US | daily high min | 8.9 C (48.0 F) | 4.5 C (8.1 F) | 37 years | 31 of 100 (Routine) |
| 19 March 2026 | Bonners Ferry, US | daily high min | 7.2 C (45.0 F) | 1.1 C (2.0 F) | 53 years | 28 of 100 (Routine) |
Climate Trend
84 complete years, 1908 to 2025| Year | Annual mean temperature | Difference from the station mean |
|---|---|---|
| 1908 | 7.4 C | -0.73 C |
| 1909 | 6.8 C | -1.28 C |
| 1910 | 7.5 C | -0.61 C |
| 1911 | 6.3 C | -1.84 C |
| 1913 | 5.7 C | -2.36 C |
| 1914 | 7.2 C | -0.91 C |
| 1915 | 7.5 C | -0.58 C |
| 1937 | 6.7 C | -1.36 C |
| 1938 | 8.3 C | +0.20 C |
| 1939 | 8.2 C | +0.13 C |
| 1940 | 9.1 C | +1.04 C |
| 1941 | 9.2 C | +1.14 C |
| 1943 | 7.0 C | -1.06 C |
| 1944 | 8.2 C | +0.10 C |
| 1945 | 7.3 C | -0.81 C |
| 1947 | 8.5 C | +0.37 C |
| 1948 | 7.3 C | -0.76 C |
| 1949 | 7.2 C | -0.86 C |
| 1950 | 7.0 C | -1.09 C |
| 1951 | 7.3 C | -0.82 C |
| 1954 | 7.6 C | -0.52 C |
| 1956 | 7.7 C | -0.41 C |
| 1957 | 7.5 C | -0.65 C |
| 1958 | 9.2 C | +1.09 C |
| 1959 | 7.2 C | -0.90 C |
| 1960 | 7.5 C | -0.60 C |
| 1961 | 8.4 C | +0.28 C |
| 1962 | 8.0 C | -0.07 C |
| 1963 | 8.3 C | +0.21 C |
| 1964 | 7.1 C | -0.97 C |
| 1965 | 7.9 C | -0.22 C |
| 1966 | 8.2 C | +0.08 C |
| 1967 | 8.8 C | +0.68 C |
| 1968 | 7.6 C | -0.51 C |
| 1969 | 7.3 C | -0.81 C |
| 1970 | 7.6 C | -0.52 C |
| 1971 | 7.6 C | -0.55 C |
| 1972 | 7.4 C | -0.70 C |
| 1973 | 8.2 C | +0.14 C |
| 1974 | 8.6 C | +0.54 C |
| 1975 | 7.1 C | -0.99 C |
| 1976 | 8.1 C | -0.02 C |
| 1977 | 8.1 C | -0.02 C |
| 1978 | 7.8 C | -0.30 C |
| 1979 | 8.1 C | +0.01 C |
| 1980 | 7.8 C | -0.35 C |
| 1981 | 8.6 C | +0.45 C |
| 1982 | 7.7 C | -0.45 C |
| 1983 | 8.4 C | +0.28 C |
| 1984 | 8.0 C | -0.13 C |
| 1985 | 7.0 C | -1.12 C |
| 1986 | 8.6 C | +0.49 C |
| 1987 | 9.1 C | +0.95 C |
| 1988 | 9.1 C | +0.98 C |
| 1991 | 7.7 C | -0.38 C |
| 1992 | 9.2 C | +1.08 C |
| 1994 | 9.0 C | +0.87 C |
| 1995 | 8.4 C | +0.33 C |
| 1996 | 7.0 C | -1.06 C |
| 1997 | 8.2 C | +0.13 C |
| 1998 | 9.6 C | +1.46 C |
| 1999 | 8.7 C | +0.59 C |
| 2000 | 7.6 C | -0.48 C |
| 2001 | 8.4 C | +0.29 C |
| 2002 | 8.0 C | -0.15 C |
| 2004 | 9.0 C | +0.86 C |
| 2005 | 8.2 C | +0.06 C |
| 2006 | 9.1 C | +0.96 C |
| 2008 | 7.3 C | -0.85 C |
| 2011 | 7.8 C | -0.32 C |
| 2012 | 9.0 C | +0.86 C |
| 2013 | 8.7 C | +0.64 C |
| 2014 | 8.7 C | +0.63 C |
| 2015 | 10.1 C | +2.00 C |
| 2016 | 9.5 C | +1.37 C |
| 2017 | 8.4 C | +0.29 C |
| 2018 | 8.7 C | +0.55 C |
| 2019 | 7.8 C | -0.26 C |
| 2020 | 8.8 C | +0.74 C |
| 2021 | 9.3 C | +1.24 C |
| 2022 | 8.1 C | +0.00 C |
| 2023 | 9.5 C | +1.41 C |
| 2024 | 9.3 C | +1.17 C |
| 2025 | 10.4 C | +2.28 C |
The annual mean temperature here has risen by 0.2 C (0.1 to 0.2) per decade over 1908 to 2025. In Fahrenheit: 0.3 F (0.2 to 0.4) per decade. The slope is a straight line fitted to 84 complete years; the brackets give its 95 percent interval.
| Measure | Per decade (C) | Per decade (F) | Period | Complete years | Reading |
|---|---|---|---|---|---|
| Annual mean temperature | 0.2 C (0.1 to 0.2) per decade | 0.3 F (0.2 to 0.4) per decade | 1908 to 2025 | 84 | Rise |
| Mean daily maximum | 0.07 C (0.02 to 0.12) per decade | 0.13 F (0.03 to 0.22) per decade | 1908 to 2025 | 84 | Rise |
| Mean daily minimum | 0.3 C (0.2 to 0.3) per decade | 0.5 F (0.4 to 0.6) per decade | 1908 to 2025 | 84 | Rise |
A year is complete when all 12 months have at least 20 days of both daily maximum and daily minimum readings. The annual mean is the mean of the monthly means. The trend describes this one station over this period; it does not say what caused the change.
Extremes by Year
1907 to 2026| Measure | Record | Year of the record | Median year | Years with a value |
|---|---|---|---|---|
| Hottest day (TXx) | 42.2 C (108.0 F) | 2021 | 36.1 C (97.0 F) | 101 |
| Coldest night (TNn) | -36.1 C (-33.0 F) | 1968 | -21.1 C (-6.0 F) | 101 |
| Wettest day (Rx1day) | 71.1 mm (2.8 in) | 1999 | 29.2 mm (1.1 in) | 102 |
| Wettest five days (Rx5day) | 116.3 mm (4.6 in) | 1946 | 57.0 mm (2.2 in) | 102 |
| Longest dry spell (CDD) | 92 days | 2017 | 29 days | 102 |
Hottest day (TXx)
| Year | Hottest day (TXx) |
|---|---|
| 1907 | 35.0 C (95.0 F) |
| 1908 | 36.7 C (98.1 F) |
| 1909 | 36.1 C (97.0 F) |
| 1910 | 37.2 C (99.0 F) |
| 1911 | 36.1 C (97.0 F) |
| 1912 | 35.0 C (95.0 F) |
| 1913 | 34.4 C (93.9 F) |
| 1914 | 36.7 C (98.1 F) |
| 1915 | 36.1 C (97.0 F) |
| 1916 | 10.6 C (51.1 F) |
| 1934 | n/a |
| 1935 | n/a |
| 1936 | 23.9 C (75.0 F) |
| 1937 | 35.0 C (95.0 F) |
| 1938 | 38.3 C (100.9 F) |
| 1939 | 38.9 C (102.0 F) |
| 1940 | 38.9 C (102.0 F) |
| 1941 | 40.0 C (104.0 F) |
| 1942 | 36.1 C (97.0 F) |
| 1943 | 36.7 C (98.1 F) |
| 1944 | 38.9 C (102.0 F) |
| 1945 | 35.6 C (96.1 F) |
| 1946 | 32.2 C (90.0 F) |
| 1947 | 36.1 C (97.0 F) |
| 1948 | 33.9 C (93.0 F) |
| 1949 | 37.2 C (99.0 F) |
| 1950 | 34.4 C (93.9 F) |
| 1951 | 36.7 C (98.1 F) |
| 1952 | 36.1 C (97.0 F) |
| 1953 | 36.7 C (98.1 F) |
| 1954 | 32.8 C (91.0 F) |
| 1955 | 35.6 C (96.1 F) |
| 1956 | 35.6 C (96.1 F) |
| 1957 | 32.8 C (91.0 F) |
| 1958 | 37.2 C (99.0 F) |
| 1959 | 37.2 C (99.0 F) |
| 1960 | 38.3 C (100.9 F) |
| 1961 | 38.3 C (100.9 F) |
| 1962 | 34.4 C (93.9 F) |
| 1963 | 33.9 C (93.0 F) |
| 1964 | 36.7 C (98.1 F) |
| 1965 | 35.6 C (96.1 F) |
| 1966 | 34.4 C (93.9 F) |
| 1967 | 37.2 C (99.0 F) |
| 1968 | 36.7 C (98.1 F) |
| 1969 | 33.3 C (91.9 F) |
| 1970 | 35.6 C (96.1 F) |
| 1971 | 37.2 C (99.0 F) |
| 1972 | 36.1 C (97.0 F) |
| 1973 | 36.7 C (98.1 F) |
| 1974 | 35.0 C (95.0 F) |
| 1975 | 37.8 C (100.0 F) |
| 1976 | 34.4 C (93.9 F) |
| 1977 | 37.8 C (100.0 F) |
| 1978 | 36.7 C (98.1 F) |
| 1979 | 39.4 C (102.9 F) |
| 1980 | 35.6 C (96.1 F) |
| 1981 | 36.7 C (98.1 F) |
| 1982 | 34.4 C (93.9 F) |
| 1983 | 34.4 C (93.9 F) |
| 1984 | 36.7 C (98.1 F) |
| 1985 | 38.3 C (100.9 F) |
| 1986 | 35.0 C (95.0 F) |
| 1987 | 36.1 C (97.0 F) |
| 1988 | 36.1 C (97.0 F) |
| 1989 | 35.0 C (95.0 F) |
| 1990 | 33.9 C (93.0 F) |
| 1991 | 33.3 C (91.9 F) |
| 1992 | 36.7 C (98.1 F) |
| 1993 | 32.2 C (90.0 F) |
| 1994 | 38.3 C (100.9 F) |
| 1995 | 33.9 C (93.0 F) |
| 1996 | 34.4 C (93.9 F) |
| 1997 | 35.0 C (95.0 F) |
| 1998 | 36.7 C (98.1 F) |
| 1999 | 35.6 C (96.1 F) |
| 2000 | 35.6 C (96.1 F) |
| 2001 | 36.1 C (97.0 F) |
| 2002 | 36.7 C (98.1 F) |
| 2003 | 38.3 C (100.9 F) |
| 2004 | 37.2 C (99.0 F) |
| 2005 | 35.6 C (96.1 F) |
| 2006 | 38.3 C (100.9 F) |
| 2007 | 37.8 C (100.0 F) |
| 2008 | 38.3 C (100.9 F) |
| 2009 | 34.4 C (93.9 F) |
| 2010 | 25.6 C (78.1 F) |
| 2011 | 35.0 C (95.0 F) |
| 2012 | 35.6 C (96.1 F) |
| 2013 | 36.1 C (97.0 F) |
| 2014 | 37.8 C (100.0 F) |
| 2015 | 40.6 C (105.1 F) |
| 2016 | 36.1 C (97.0 F) |
| 2017 | 37.2 C (99.0 F) |
| 2018 | 40.6 C (105.1 F) |
| 2019 | 36.7 C (98.1 F) |
| 2020 | 38.3 C (100.9 F) |
| 2021 | 42.2 C (108.0 F) |
| 2022 | 37.8 C (100.0 F) |
| 2023 | 38.9 C (102.0 F) |
| 2024 | 39.4 C (102.9 F) |
| 2025 | 37.2 C (99.0 F) |
| 2026 | 37.8 C (100.0 F) |
Coldest night (TNn)
| Year | Coldest night (TNn) |
|---|---|
| 1907 | -12.2 C (10.0 F) |
| 1908 | -23.9 C (-11.0 F) |
| 1909 | -31.7 C (-25.1 F) |
| 1910 | -27.8 C (-18.0 F) |
| 1911 | -23.3 C (-9.9 F) |
| 1912 | -23.3 C (-9.9 F) |
| 1913 | -23.3 C (-9.9 F) |
| 1914 | -26.7 C (-16.1 F) |
| 1915 | -23.3 C (-9.9 F) |
| 1916 | -27.8 C (-18.0 F) |
| 1934 | n/a |
| 1935 | n/a |
| 1936 | -13.3 C (8.1 F) |
| 1937 | -32.2 C (-26.0 F) |
| 1938 | -19.4 C (-2.9 F) |
| 1939 | -25.6 C (-14.1 F) |
| 1940 | -15.0 C (5.0 F) |
| 1941 | -18.3 C (-0.9 F) |
| 1942 | -20.6 C (-5.1 F) |
| 1943 | -26.1 C (-15.0 F) |
| 1944 | -17.2 C (1.0 F) |
| 1945 | -20.0 C (-4.0 F) |
| 1946 | -18.9 C (-2.0 F) |
| 1947 | -22.2 C (-8.0 F) |
| 1948 | -23.9 C (-11.0 F) |
| 1949 | -27.8 C (-18.0 F) |
| 1950 | -33.9 C (-29.0 F) |
| 1951 | -23.3 C (-9.9 F) |
| 1952 | -24.4 C (-11.9 F) |
| 1953 | -8.9 C (16.0 F) |
| 1954 | -18.3 C (-0.9 F) |
| 1955 | -24.4 C (-11.9 F) |
| 1956 | -23.9 C (-11.0 F) |
| 1957 | -30.6 C (-23.1 F) |
| 1958 | -19.4 C (-2.9 F) |
| 1959 | -25.0 C (-13.0 F) |
| 1960 | -23.3 C (-9.9 F) |
| 1961 | -21.7 C (-7.1 F) |
| 1962 | -27.8 C (-18.0 F) |
| 1963 | -23.3 C (-9.9 F) |
| 1964 | -26.7 C (-16.1 F) |
| 1965 | -17.2 C (1.0 F) |
| 1966 | -17.8 C (0.0 F) |
| 1967 | -13.3 C (8.1 F) |
| 1968 | -36.1 C (-33.0 F) |
| 1969 | -28.3 C (-18.9 F) |
| 1970 | -18.9 C (-2.0 F) |
| 1971 | -18.9 C (-2.0 F) |
| 1972 | -24.4 C (-11.9 F) |
| 1973 | -20.6 C (-5.1 F) |
| 1974 | -23.3 C (-9.9 F) |
| 1975 | -22.8 C (-9.0 F) |
| 1976 | -18.9 C (-2.0 F) |
| 1977 | -21.1 C (-6.0 F) |
| 1978 | -26.7 C (-16.1 F) |
| 1979 | -27.2 C (-17.0 F) |
| 1980 | -28.3 C (-18.9 F) |
| 1981 | -20.6 C (-5.1 F) |
| 1982 | -21.1 C (-6.0 F) |
| 1983 | -27.2 C (-17.0 F) |
| 1984 | -20.6 C (-5.1 F) |
| 1985 | -25.0 C (-13.0 F) |
| 1986 | -17.8 C (0.0 F) |
| 1987 | -18.3 C (-0.9 F) |
| 1988 | -20.6 C (-5.1 F) |
| 1989 | -24.4 C (-11.9 F) |
| 1990 | -27.2 C (-17.0 F) |
| 1991 | -18.9 C (-2.0 F) |
| 1992 | -15.0 C (5.0 F) |
| 1993 | -23.3 C (-9.9 F) |
| 1994 | -19.4 C (-2.9 F) |
| 1995 | -17.2 C (1.0 F) |
| 1996 | -30.0 C (-22.0 F) |
| 1997 | -19.4 C (-2.9 F) |
| 1998 | -21.7 C (-7.1 F) |
| 1999 | -10.6 C (12.9 F) |
| 2000 | -18.3 C (-0.9 F) |
| 2001 | -16.1 C (3.0 F) |
| 2002 | -13.9 C (7.0 F) |
| 2003 | -14.4 C (6.1 F) |
| 2004 | -30.0 C (-22.0 F) |
| 2005 | -25.6 C (-14.1 F) |
| 2006 | -19.4 C (-2.9 F) |
| 2007 | -17.8 C (0.0 F) |
| 2008 | -23.3 C (-9.9 F) |
| 2009 | -21.1 C (-6.0 F) |
| 2010 | -19.4 C (-2.9 F) |
| 2011 | -23.3 C (-9.9 F) |
| 2012 | -11.7 C (10.9 F) |
| 2013 | -18.9 C (-2.0 F) |
| 2014 | -21.1 C (-6.0 F) |
| 2015 | -13.9 C (7.0 F) |
| 2016 | -18.9 C (-2.0 F) |
| 2017 | -21.1 C (-6.0 F) |
| 2018 | -17.8 C (0.0 F) |
| 2019 | -17.8 C (0.0 F) |
| 2020 | -10.6 C (12.9 F) |
| 2021 | -17.8 C (0.0 F) |
| 2022 | -27.2 C (-17.0 F) |
| 2023 | -18.3 C (-0.9 F) |
| 2024 | -28.9 C (-20.0 F) |
| 2025 | -18.3 C (-0.9 F) |
| 2026 | -8.9 C (16.0 F) |
Wettest day (Rx1day)
| Year | Wettest day (Rx1day) |
|---|---|
| 1907 | 18.3 mm (0.7 in) |
| 1908 | 25.1 mm (1.0 in) |
| 1909 | 26.2 mm (1.0 in) |
| 1910 | 33.0 mm (1.3 in) |
| 1911 | 33.8 mm (1.3 in) |
| 1912 | 35.6 mm (1.4 in) |
| 1913 | 24.6 mm (1.0 in) |
| 1914 | 36.8 mm (1.4 in) |
| 1915 | 25.7 mm (1.0 in) |
| 1916 | 20.3 mm (0.8 in) |
| 1934 | 21.3 mm (0.8 in) |
| 1935 | 38.4 mm (1.5 in) |
| 1936 | 26.9 mm (1.1 in) |
| 1937 | 28.2 mm (1.1 in) |
| 1938 | 23.6 mm (0.9 in) |
| 1939 | 24.6 mm (1.0 in) |
| 1940 | 22.4 mm (0.9 in) |
| 1941 | 29.2 mm (1.1 in) |
| 1942 | 25.1 mm (1.0 in) |
| 1943 | 24.6 mm (1.0 in) |
| 1944 | 14.5 mm (0.6 in) |
| 1945 | 24.4 mm (1.0 in) |
| 1946 | 70.6 mm (2.8 in) |
| 1947 | 27.9 mm (1.1 in) |
| 1948 | 22.9 mm (0.9 in) |
| 1949 | 26.4 mm (1.0 in) |
| 1950 | 29.7 mm (1.2 in) |
| 1951 | 33.8 mm (1.3 in) |
| 1952 | 22.1 mm (0.9 in) |
| 1953 | 24.6 mm (1.0 in) |
| 1954 | 31.5 mm (1.2 in) |
| 1955 | 34.3 mm (1.4 in) |
| 1956 | 23.9 mm (0.9 in) |
| 1957 | 35.8 mm (1.4 in) |
| 1958 | 36.8 mm (1.4 in) |
| 1959 | 34.5 mm (1.4 in) |
| 1960 | 38.6 mm (1.5 in) |
| 1961 | 24.6 mm (1.0 in) |
| 1962 | 45.0 mm (1.8 in) |
| 1963 | 22.1 mm (0.9 in) |
| 1964 | 37.3 mm (1.5 in) |
| 1965 | 24.1 mm (0.9 in) |
| 1966 | 33.3 mm (1.3 in) |
| 1967 | 37.1 mm (1.5 in) |
| 1968 | 53.3 mm (2.1 in) |
| 1969 | 36.1 mm (1.4 in) |
| 1970 | 30.7 mm (1.2 in) |
| 1971 | 30.7 mm (1.2 in) |
| 1972 | 36.8 mm (1.4 in) |
| 1973 | 32.5 mm (1.3 in) |
| 1974 | 39.9 mm (1.6 in) |
| 1975 | 30.5 mm (1.2 in) |
| 1976 | 22.9 mm (0.9 in) |
| 1977 | 18.8 mm (0.7 in) |
| 1978 | 24.4 mm (1.0 in) |
| 1979 | 26.4 mm (1.0 in) |
| 1980 | 27.7 mm (1.1 in) |
| 1981 | 24.4 mm (1.0 in) |
| 1982 | 31.5 mm (1.2 in) |
| 1983 | 25.4 mm (1.0 in) |
| 1984 | 31.5 mm (1.2 in) |
| 1985 | 23.9 mm (0.9 in) |
| 1986 | 30.2 mm (1.2 in) |
| 1987 | 35.8 mm (1.4 in) |
| 1988 | 26.7 mm (1.1 in) |
| 1989 | 18.0 mm (0.7 in) |
| 1990 | 29.2 mm (1.1 in) |
| 1991 | 20.8 mm (0.8 in) |
| 1992 | 34.3 mm (1.4 in) |
| 1993 | 24.9 mm (1.0 in) |
| 1994 | 19.3 mm (0.8 in) |
| 1995 | 36.1 mm (1.4 in) |
| 1996 | 35.3 mm (1.4 in) |
| 1997 | 28.4 mm (1.1 in) |
| 1998 | 52.8 mm (2.1 in) |
| 1999 | 71.1 mm (2.8 in) |
| 2000 | 16.0 mm (0.6 in) |
| 2001 | 22.6 mm (0.9 in) |
| 2002 | 39.4 mm (1.6 in) |
| 2003 | 26.7 mm (1.1 in) |
| 2004 | 24.1 mm (0.9 in) |
| 2005 | 29.2 mm (1.1 in) |
| 2006 | 50.8 mm (2.0 in) |
| 2007 | 30.5 mm (1.2 in) |
| 2008 | 16.5 mm (0.6 in) |
| 2009 | 25.4 mm (1.0 in) |
| 2010 | 68.6 mm (2.7 in) |
| 2011 | 48.3 mm (1.9 in) |
| 2012 | 35.1 mm (1.4 in) |
| 2013 | 46.7 mm (1.8 in) |
| 2014 | 23.4 mm (0.9 in) |
| 2015 | 51.3 mm (2.0 in) |
| 2016 | 58.4 mm (2.3 in) |
| 2017 | 40.1 mm (1.6 in) |
| 2018 | 25.4 mm (1.0 in) |
| 2019 | 27.9 mm (1.1 in) |
| 2020 | 30.5 mm (1.2 in) |
| 2021 | 45.0 mm (1.8 in) |
| 2022 | 43.2 mm (1.7 in) |
| 2023 | 40.6 mm (1.6 in) |
| 2024 | 23.9 mm (0.9 in) |
| 2025 | 19.1 mm (0.8 in) |
| 2026 | n/a |
Wettest five days (Rx5day)
| Year | Wettest five days (Rx5day) |
|---|---|
| 1907 | 34.5 mm (1.4 in) |
| 1908 | 45.4 mm (1.8 in) |
| 1909 | 65.8 mm (2.6 in) |
| 1910 | 66.0 mm (2.6 in) |
| 1911 | 44.5 mm (1.8 in) |
| 1912 | 79.1 mm (3.1 in) |
| 1913 | 42.3 mm (1.7 in) |
| 1914 | 54.6 mm (2.1 in) |
| 1915 | 44.0 mm (1.7 in) |
| 1916 | 54.3 mm (2.1 in) |
| 1934 | 69.1 mm (2.7 in) |
| 1935 | 84.9 mm (3.3 in) |
| 1936 | 57.4 mm (2.3 in) |
| 1937 | 77.1 mm (3.0 in) |
| 1938 | 56.6 mm (2.2 in) |
| 1939 | 52.8 mm (2.1 in) |
| 1940 | 46.4 mm (1.8 in) |
| 1941 | 50.8 mm (2.0 in) |
| 1942 | 49.5 mm (1.9 in) |
| 1943 | 50.5 mm (2.0 in) |
| 1944 | 20.0 mm (0.8 in) |
| 1945 | 41.2 mm (1.6 in) |
| 1946 | 116.3 mm (4.6 in) |
| 1947 | 106.7 mm (4.2 in) |
| 1948 | 42.9 mm (1.7 in) |
| 1949 | 45.2 mm (1.8 in) |
| 1950 | 81.3 mm (3.2 in) |
| 1951 | 58.4 mm (2.3 in) |
| 1952 | 51.0 mm (2.0 in) |
| 1953 | 78.2 mm (3.1 in) |
| 1954 | 48.3 mm (1.9 in) |
| 1955 | 66.8 mm (2.6 in) |
| 1956 | 50.0 mm (2.0 in) |
| 1957 | 51.6 mm (2.0 in) |
| 1958 | 70.2 mm (2.8 in) |
| 1959 | 93.4 mm (3.7 in) |
| 1960 | 108.7 mm (4.3 in) |
| 1961 | 64.3 mm (2.5 in) |
| 1962 | 63.8 mm (2.5 in) |
| 1963 | 61.1 mm (2.4 in) |
| 1964 | 72.4 mm (2.9 in) |
| 1965 | 54.4 mm (2.1 in) |
| 1966 | 70.4 mm (2.8 in) |
| 1967 | 49.6 mm (2.0 in) |
| 1968 | 77.0 mm (3.0 in) |
| 1969 | 62.2 mm (2.4 in) |
| 1970 | 90.7 mm (3.6 in) |
| 1971 | 54.1 mm (2.1 in) |
| 1972 | 50.8 mm (2.0 in) |
| 1973 | 86.6 mm (3.4 in) |
| 1974 | 109.8 mm (4.3 in) |
| 1975 | 52.3 mm (2.1 in) |
| 1976 | 36.3 mm (1.4 in) |
| 1977 | 38.8 mm (1.5 in) |
| 1978 | 49.3 mm (1.9 in) |
| 1979 | 38.3 mm (1.5 in) |
| 1980 | 59.6 mm (2.3 in) |
| 1981 | 49.0 mm (1.9 in) |
| 1982 | 84.3 mm (3.3 in) |
| 1983 | 64.8 mm (2.6 in) |
| 1984 | 59.9 mm (2.4 in) |
| 1985 | 47.5 mm (1.9 in) |
| 1986 | 69.0 mm (2.7 in) |
| 1987 | 69.8 mm (2.7 in) |
| 1988 | 62.0 mm (2.4 in) |
| 1989 | 42.9 mm (1.7 in) |
| 1990 | 55.9 mm (2.2 in) |
| 1991 | 42.9 mm (1.7 in) |
| 1992 | 36.1 mm (1.4 in) |
| 1993 | 42.1 mm (1.7 in) |
| 1994 | 39.1 mm (1.5 in) |
| 1995 | 44.2 mm (1.7 in) |
| 1996 | 67.3 mm (2.6 in) |
| 1997 | 80.0 mm (3.1 in) |
| 1998 | 77.4 mm (3.0 in) |
| 1999 | 72.7 mm (2.9 in) |
| 2000 | 35.5 mm (1.4 in) |
| 2001 | 41.9 mm (1.6 in) |
| 2002 | 96.8 mm (3.8 in) |
| 2003 | 43.6 mm (1.7 in) |
| 2004 | 46.7 mm (1.8 in) |
| 2005 | 52.9 mm (2.1 in) |
| 2006 | 67.3 mm (2.6 in) |
| 2007 | 55.1 mm (2.2 in) |
| 2008 | 33.0 mm (1.3 in) |
| 2009 | 30.7 mm (1.2 in) |
| 2010 | 80.0 mm (3.1 in) |
| 2011 | 77.5 mm (3.1 in) |
| 2012 | 67.6 mm (2.7 in) |
| 2013 | 76.2 mm (3.0 in) |
| 2014 | 59.2 mm (2.3 in) |
| 2015 | 78.5 mm (3.1 in) |
| 2016 | 68.1 mm (2.7 in) |
| 2017 | 87.8 mm (3.5 in) |
| 2018 | 39.2 mm (1.5 in) |
| 2019 | 75.2 mm (3.0 in) |
| 2020 | 54.4 mm (2.1 in) |
| 2021 | 63.0 mm (2.5 in) |
| 2022 | 70.4 mm (2.8 in) |
| 2023 | 91.1 mm (3.6 in) |
| 2024 | 51.1 mm (2.0 in) |
| 2025 | 29.2 mm (1.1 in) |
| 2026 | n/a |
Longest dry spell (CDD)
| Year | Longest dry spell (CDD) |
|---|---|
| 1907 | 23 days |
| 1908 | 27 days |
| 1909 | 28 days |
| 1910 | 26 days |
| 1911 | 26 days |
| 1912 | 29 days |
| 1913 | 40 days |
| 1914 | 36 days |
| 1915 | 35 days |
| 1916 | 14 days |
| 1934 | 45 days |
| 1935 | 29 days |
| 1936 | 46 days |
| 1937 | 30 days |
| 1938 | 36 days |
| 1939 | 62 days |
| 1940 | 34 days |
| 1941 | 31 days |
| 1942 | 28 days |
| 1943 | 29 days |
| 1944 | 19 days |
| 1945 | 26 days |
| 1946 | 23 days |
| 1947 | 21 days |
| 1948 | 24 days |
| 1949 | 15 days |
| 1950 | 38 days |
| 1951 | 36 days |
| 1952 | 47 days |
| 1953 | 35 days |
| 1954 | 25 days |
| 1955 | 41 days |
| 1956 | 22 days |
| 1957 | 23 days |
| 1958 | 29 days |
| 1959 | 36 days |
| 1960 | 66 days |
| 1961 | 16 days |
| 1962 | 21 days |
| 1963 | 24 days |
| 1964 | 26 days |
| 1965 | 29 days |
| 1966 | 30 days |
| 1967 | 55 days |
| 1968 | 21 days |
| 1969 | 53 days |
| 1970 | 29 days |
| 1971 | 41 days |
| 1972 | 29 days |
| 1973 | 54 days |
| 1974 | 34 days |
| 1975 | 17 days |
| 1976 | 25 days |
| 1977 | 22 days |
| 1978 | 23 days |
| 1979 | 36 days |
| 1980 | 19 days |
| 1981 | 32 days |
| 1982 | 17 days |
| 1983 | 28 days |
| 1984 | 38 days |
| 1985 | 35 days |
| 1986 | 17 days |
| 1987 | 21 days |
| 1988 | 26 days |
| 1989 | 22 days |
| 1990 | 33 days |
| 1991 | 36 days |
| 1992 | 15 days |
| 1993 | 20 days |
| 1994 | 22 days |
| 1995 | 21 days |
| 1996 | 18 days |
| 1997 | 26 days |
| 1998 | 20 days |
| 1999 | 31 days |
| 2000 | 45 days |
| 2001 | 33 days |
| 2002 | 29 days |
| 2003 | 66 days |
| 2004 | 27 days |
| 2005 | 30 days |
| 2006 | 24 days |
| 2007 | 67 days |
| 2008 | 58 days |
| 2009 | 39 days |
| 2010 | 12 days |
| 2011 | 35 days |
| 2012 | 31 days |
| 2013 | 28 days |
| 2014 | 40 days |
| 2015 | 26 days |
| 2016 | 26 days |
| 2017 | 92 days |
| 2018 | 50 days |
| 2019 | 21 days |
| 2020 | 23 days |
| 2021 | 28 days |
| 2022 | 48 days |
| 2023 | 22 days |
| 2024 | 18 days |
| 2025 | 22 days |
| 2026 | n/a |
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
84 years with a frostAcross 84 years with a frost, the median last spring frost at Bonners Ferry falls on 12 May and the median first autumn frost on 23 September, which leaves a median of 133 days between them.
In 1991 to 2025 the median growing season was 155 days. That is 34 days more than in 1908 to 1964.
Fitted over all years, the growing season changes by +4.5 days per decade at this station.
| Measure | Median, all years | Earliest period (1908 to 1964) | Recent period (1991 to 2025) | Recent against earliest | Fitted trend |
|---|---|---|---|---|---|
| Last spring frost | 12 May | 14 May | 2 May | 12 days earlier | -1.8 days per decade |
| First autumn frost | 23 September | 14 September | 4 October | 20 days later | +2.6 days per decade |
| Growing days | 133 days | 121 days | 155 days | 34 days more | +4.5 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
89 years, 1908 to 2023A day with at least 29.5 mm (1.2 in) of rain is expected about once in 2 years. A day with at least 63.9 mm (2.5 in) of rain is expected about once in 100 years.
| Expected about once in | A day with at least | Note |
|---|---|---|
| 2 years | 29.5 mm (1.2 in) | |
| 5 years | 37.9 mm (1.5 in) | |
| 10 years | 43.8 mm (1.7 in) | |
| 25 years | 51.6 mm (2.0 in) | |
| 50 years | 57.6 mm (2.3 in) | |
| 100 years | 63.9 mm (2.5 in) | Longer than the 89 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, 89 years of values from 1908 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: 71.1 mm (2.8 in) in 1999; 58.4 mm (2.3 in) in 2016; 53.3 mm (2.1 in) in 1968.
Station Changes
2 suspected2 changes were suspected in the annual mean temperature of Bonners Ferry, at 1940 and 1954. Each is measured against neighbouring stations.
- Relative to 5 neighbouring stations, the station's annual mean temperature from 1940 ran 0.7 C (1.2 F) higher than in the years before (possible change).
- Relative to 5 neighbouring stations, the station's annual mean temperature from 1954 ran 0.4 C (0.7 F) lower than in the years before (likely change).
| Year | Shift (C) | Shift (F) | Strength | Neighbours |
|---|---|---|---|---|
| 1940 | +0.7 | +1.2 | possible | 5 |
| 1954 | -0.4 | -0.7 | likely | 5 |
Possible change at the station (a move, a new instrument or a new site); the record is kept as measured. A "likely" change has a larger test statistic than a "possible" one. Neither says why the station differs from its neighbours. How changes are found, and the largest ones.
Climate Twins
2011 to 2025 against 1961 to 1990Over 2011 to 2025, Bonners Ferry had a mean temperature of 8.9 C (48.1 F) and 607.4 mm (23.9 in) of rain a year. The 3 stations whose 1961 to 1990 climate was closest to that are Arrowrock Dam (United States, 568 km away), Coeur D'Alene (United States, 118 km away) and Garden Valley (United States, 511 km away).
| Twin station | Country | Distance away | Mean temperature, 1961-1990 | Rain a year, 1961-1990 | Climate difference |
|---|---|---|---|---|---|
| Arrowrock Dam | United States | 568 km (353 mi) | 9.3 C (48.8 F) | 490.9 mm (19.3 in) | 1.00 |
| Coeur D'Alene | United States | 118 km (73 mi) | 9.1 C (48.4 F) | 612.4 mm (24.1 in) | 1.02 |
| Garden Valley | United States | 511 km (318 mi) | 8.5 C (47.2 F) | 550.7 mm (21.7 in) | 1.02 |
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).