Mullan Weather Records (USC00106230)
Record envelope, standing records and threshold days for Mullan (USC00106230), Idaho, United States, with 52 years of record.
Key Facts for Mullan
- Mullan (USC00106230) is a weather station in Idaho, United States at 47.47 latitude and -115.81 longitude, 976 m (3,201 ft) above sea level.
- The station reports from 1975 to 2026, 52 years of record.
- 1,464 records set at Mullan still stand.
- Records are tracked for tmax, tmin, prcp: an element needs 30 years of data to be eligible.
- Mullan tied a daily record low minimum temperature of -0.6 C (30.9 F) on 27 September 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, 47.47 latitude, -115.81 longitude.
- Elevation: 976 m (3,201 ft).
- Period of record: 1975 to 2026, 52 years.
- Eligible elements: tmax, tmin, prcp.
Daily Record Envelope and 2026
16 days at or beyond a record| Month | Highest record high | Lowest record low | 2026 highest maximum | 2026 lowest minimum |
|---|---|---|---|---|
| Jan | 13.3 C (55.9 F) | -30.6 C (-23.1 F) | 10.0 C (50.0 F) | -12.8 C (9.0 F) |
| Feb | 18.3 C (64.9 F) | -27.8 C (-18.0 F) | 12.2 C (54.0 F) | -9.4 C (15.1 F) |
| Mar | 24.4 C (75.9 F) | -19.4 C (-2.9 F) | 16.1 C (61.0 F) | -11.7 C (10.9 F) |
| Apr | 30.6 C (87.1 F) | -9.4 C (15.1 F) | 25.0 C (77.0 F) | -3.9 C (25.0 F) |
| May | 33.9 C (93.0 F) | -5.0 C (23.0 F) | 28.3 C (82.9 F) | -1.1 C (30.0 F) |
| Jun | 39.4 C (102.9 F) | -1.1 C (30.0 F) | 28.9 C (84.0 F) | 4.4 C (39.9 F) |
| Jul | 38.3 C (100.9 F) | -2.8 C (27.0 F) | 33.3 C (91.9 F) | 0.0 C (32.0 F) |
| Aug | 40.6 C (105.1 F) | -1.7 C (28.9 F) | 36.1 C (97.0 F) | 3.3 C (37.9 F) |
| Sep | 37.2 C (99.0 F) | -6.7 C (19.9 F) | 22.8 C (73.0 F) | -1.7 C (28.9 F) |
| Oct | 30.6 C (87.1 F) | -18.9 C (-2.0 F) | n/a | n/a |
| Nov | 18.3 C (64.9 F) | -23.3 C (-9.9 F) | n/a | n/a |
| Dec | 13.9 C (57.0 F) | -29.4 C (-20.9 F) | n/a | n/a |
Which Years Hold Standing Records
1,464 standing records| Year set | Standing records |
|---|---|
| 1975 | 5 |
| 1976 | 38 |
| 1977 | 47 |
| 1978 | 33 |
| 1979 | 22 |
| 1980 | 57 |
| 1981 | 38 |
| 1982 | 31 |
| 1983 | 42 |
| 1984 | 57 |
| 1985 | 66 |
| 1986 | 46 |
| 1987 | 46 |
| 1988 | 42 |
| 1989 | 27 |
| 1990 | 38 |
| 1991 | 26 |
| 1992 | 47 |
| 1993 | 43 |
| 1994 | 25 |
| 1995 | 106 |
| 1996 | 39 |
| 2011 | 2 |
| 2012 | 25 |
| 2013 | 65 |
| 2014 | 36 |
| 2015 | 40 |
| 2016 | 34 |
| 2017 | 36 |
| 2018 | 25 |
| 2019 | 45 |
| 2020 | 26 |
| 2021 | 39 |
| 2022 | 39 |
| 2023 | 32 |
| 2024 | 45 |
| 2025 | 39 |
| 2026 | 15 |
All-Time Record Progression
1 new records| Date | Kind | Detail |
|---|---|---|
| 2024-01-13 | Record low minimum temperature | Record low minimum temperature -30.6 C (-23.1 F) |
Wettest Day of Each Month
Oct: 83.8 mm (3.3 in)| Month | Record daily precipitation (mm) | Date |
|---|---|---|
| Jan | 64.3 mm (2.5 in) | 13 January 2021 |
| Feb | 80.5 mm (3.2 in) | 16 February 1986 |
| Mar | 69.6 mm (2.7 in) | 9 March 2014 |
| Apr | 50.8 mm (2.0 in) | 26 April 1993 |
| May | 41.1 mm (1.6 in) | 9 May 2022 |
| Jun | 44.2 mm (1.7 in) | 12 June 2022 |
| Jul | 32.5 mm (1.3 in) | 5 July 1988 |
| Aug | 34.8 mm (1.4 in) | 22 August 1992 |
| Sep | 69.3 mm (2.7 in) | 30 September 2013 |
| Oct | 83.8 mm (3.3 in) | 10 October 2016 |
| Nov | 68.3 mm (2.7 in) | 25 November 1990 |
| Dec | 62.2 mm (2.4 in) | 9 December 2015 |
Period of Record Coverage
1975 to 2026| Year | Days with data | Share of year | Complete |
|---|---|---|---|
| 1975 | 61 | 17% | No |
| 1976 | 366 | 100% | Yes |
| 1977 | 365 | 100% | Yes |
| 1978 | 365 | 100% | Yes |
| 1979 | 361 | 99% | Yes |
| 1980 | 366 | 100% | Yes |
| 1981 | 364 | 100% | Yes |
| 1982 | 330 | 90% | Yes |
| 1983 | 331 | 91% | Yes |
| 1984 | 357 | 98% | Yes |
| 1985 | 361 | 99% | Yes |
| 1986 | 362 | 99% | Yes |
| 1987 | 363 | 99% | Yes |
| 1988 | 364 | 99% | Yes |
| 1989 | 362 | 99% | Yes |
| 1990 | 365 | 100% | Yes |
| 1991 | 364 | 100% | Yes |
| 1992 | 365 | 100% | Yes |
| 1993 | 362 | 99% | Yes |
| 1994 | 353 | 97% | Yes |
| 1995 | 207 | 57% | No |
| 1996 | 219 | 60% | No |
| 1997 | 46 | 13% | No |
| 2011 | 43 | 12% | No |
| 2012 | 227 | 62% | No |
| 2013 | 335 | 92% | Yes |
| 2014 | 351 | 96% | Yes |
| 2015 | 310 | 85% | No |
| 2016 | 361 | 99% | Yes |
| 2017 | 353 | 97% | Yes |
| 2018 | 357 | 98% | Yes |
| 2019 | 327 | 90% | No |
| 2020 | 326 | 89% | No |
| 2021 | 365 | 100% | Yes |
| 2022 | 357 | 98% | Yes |
| 2023 | 360 | 99% | Yes |
| 2024 | 363 | 99% | Yes |
| 2025 | 364 | 100% | Yes |
| 2026 | 251 | 69% | No |
Latest Records
20| Date | Station | Record | Value | Beat old record by | Old record stood | Significance |
|---|---|---|---|---|---|---|
| 27 September 2026 | Mullan, US | daily low min (Tie, Provisional) | -0.6 C (30.9 F) | tie | 48 years | 4 of 100 (Routine) |
| 15 September 2026 | Mullan, US | daily low max (Provisional) | 10.6 C (51.1 F) | 1.1 C (2.0 F) | 29 years | 14 of 100 (Routine) |
| 22 August 2026 | Mullan, US | daily high max (Provisional) | 34.4 C (93.9 F) | 2.2 C (4.0 F) | 41 years | 21 of 100 (Routine) |
| 21 August 2026 | Mullan, US | daily high max (Provisional) | 36.1 C (97.0 F) | 3.3 C (5.9 F) | 4 years | 12 of 100 (Routine) |
| 20 August 2026 | Mullan, US | daily high max (Provisional) | 33.3 C (91.9 F) | 0.5 C (0.9 F) | 7 years | 8 of 100 (Routine) |
| 17 August 2026 | Mullan, US | daily high min (Tie, Provisional) | 13.9 C (57.0 F) | tie | 5 years | 1 of 100 (Routine) |
| 11 August 2026 | Mullan, US | daily low min (Tie) | 5.6 C (42.1 F) | tie | 40 years | 4 of 100 (Routine) |
| 10 July 2026 | Mullan, US | daily low min | 3.9 C (39.0 F) | 0.5 C (0.9 F) | 49 years | 20 of 100 (Routine) |
| 6 July 2026 | Mullan, US | daily low min | 1.1 C (34.0 F) | 1.7 C (3.1 F) | 29 years | 18 of 100 (Routine) |
| 5 July 2026 | Mullan, US | daily low min | 0.6 C (33.1 F) | 2.2 C (4.0 F) | 48 years | 25 of 100 (Routine) |
| 4 July 2026 | Mullan, US | daily low min | 0.0 C (32.0 F) | 2.2 C (4.0 F) | 43 years | 23 of 100 (Routine) |
| 30 June 2026 | Mullan, US | daily low max | 11.1 C (52.0 F) | 5.0 C (9.0 F) | 5 years | 14 of 100 (Routine) |
| 29 June 2026 | Mullan, US | daily rain | 27.9 mm (1.1 in) | 11.1 mm (0.4 in) | 33 years | 30 of 100 (Routine) |
| 29 June 2026 | Mullan, US | daily low max | 11.7 C (53.1 F) | 1.1 C (2.0 F) | 37 years | 17 of 100 (Routine) |
| 28 June 2026 | Mullan, US | daily low max | 13.9 C (57.0 F) | 2.8 C (5.0 F) | 5 years | 10 of 100 (Routine) |
| 24 May 2026 | Mullan, US | daily low min (Tie) | -0.6 C (30.9 F) | tie | 41 years | 4 of 100 (Routine) |
| 17 May 2026 | Mullan, US | daily low max | 6.1 C (43.0 F) | 1.1 C (2.0 F) | 8 years | 8 of 100 (Routine) |
| 23 April 2026 | Mullan, US | daily rain | 21.8 mm (0.9 in) | 2.5 mm (0.10 in) | 29 years | 16 of 100 (Routine) |
| 13 April 2026 | Mullan, US | daily rain | 21.1 mm (0.8 in) | 12.2 mm (0.5 in) | 44 years | 20 of 100 (Routine) |
| 5 April 2026 | Mullan, US | daily high max (Tie) | 20.0 C (68.0 F) | tie | 48 years | 4 of 100 (Routine) |
Climate Trend
29 complete years, 1976 to 2025| Year | Annual mean temperature | Difference from the station mean |
|---|---|---|
| 1976 | 6.5 C | -0.57 C |
| 1977 | 6.5 C | -0.64 C |
| 1978 | 6.2 C | -0.87 C |
| 1979 | 6.7 C | -0.42 C |
| 1980 | 6.6 C | -0.47 C |
| 1981 | 7.4 C | +0.33 C |
| 1982 | 6.3 C | -0.83 C |
| 1983 | 7.2 C | +0.11 C |
| 1984 | 6.8 C | -0.36 C |
| 1985 | 5.2 C | -1.90 C |
| 1986 | 7.8 C | +0.68 C |
| 1987 | 8.2 C | +1.09 C |
| 1988 | 7.8 C | +0.66 C |
| 1989 | 7.0 C | -0.10 C |
| 1990 | 7.3 C | +0.23 C |
| 1991 | 7.4 C | +0.28 C |
| 1992 | 8.2 C | +1.13 C |
| 1993 | 6.2 C | -0.90 C |
| 1994 | 8.0 C | +0.84 C |
| 2013 | 8.1 C | +0.95 C |
| 2014 | 6.9 C | -0.20 C |
| 2016 | 7.9 C | +0.74 C |
| 2017 | 7.0 C | -0.15 C |
| 2018 | 7.0 C | -0.10 C |
| 2021 | 7.5 C | +0.36 C |
| 2022 | 6.3 C | -0.79 C |
| 2023 | 7.2 C | +0.12 C |
| 2024 | 7.3 C | +0.19 C |
| 2025 | 7.6 C | +0.46 C |
This station does not have enough complete years (30 are needed) to fit a temperature trend.
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
1975 to 2026| Measure | Record | Year of the record | Median year | Years with a value |
|---|---|---|---|---|
| Hottest day (TXx) | 40.6 C (105.1 F) | 2018 | 34.4 C (93.9 F) | 39 |
| Coldest night (TNn) | -30.6 C (-23.1 F) | 2024 | -21.1 C (-6.0 F) | 39 |
| Wettest day (Rx1day) | 83.8 mm (3.3 in) | 2016 | 41.7 mm (1.6 in) | 39 |
| Wettest five days (Rx5day) | 138.6 mm (5.5 in) | 2017 | 81.0 mm (3.2 in) | 39 |
| Longest dry spell (CDD) | 47 days | 2026 | 25 days | 39 |
Hottest day (TXx)
| Year | Hottest day (TXx) |
|---|---|
| 1975 | 17.2 C (63.0 F) |
| 1976 | 32.8 C (91.0 F) |
| 1977 | 34.4 C (93.9 F) |
| 1978 | 33.3 C (91.9 F) |
| 1979 | 33.9 C (93.0 F) |
| 1980 | 34.4 C (93.9 F) |
| 1981 | 33.9 C (93.0 F) |
| 1982 | 32.8 C (91.0 F) |
| 1983 | 33.9 C (93.0 F) |
| 1984 | 35.0 C (95.0 F) |
| 1985 | 36.1 C (97.0 F) |
| 1986 | 34.4 C (93.9 F) |
| 1987 | 33.3 C (91.9 F) |
| 1988 | 35.0 C (95.0 F) |
| 1989 | 33.9 C (93.0 F) |
| 1990 | 33.9 C (93.0 F) |
| 1991 | 33.9 C (93.0 F) |
| 1992 | 34.4 C (93.9 F) |
| 1993 | 31.7 C (89.1 F) |
| 1994 | 35.6 C (96.1 F) |
| 1995 | 31.1 C (88.0 F) |
| 1996 | 33.9 C (93.0 F) |
| 1997 | 27.8 C (82.0 F) |
| 2011 | 10.6 C (51.1 F) |
| 2012 | 34.4 C (93.9 F) |
| 2013 | 36.7 C (98.1 F) |
| 2014 | 35.6 C (96.1 F) |
| 2015 | 38.9 C (102.0 F) |
| 2016 | 33.9 C (93.0 F) |
| 2017 | 36.7 C (98.1 F) |
| 2018 | 40.6 C (105.1 F) |
| 2019 | 35.0 C (95.0 F) |
| 2020 | 37.2 C (99.0 F) |
| 2021 | 39.4 C (102.9 F) |
| 2022 | 36.1 C (97.0 F) |
| 2023 | 36.7 C (98.1 F) |
| 2024 | 37.8 C (100.0 F) |
| 2025 | 37.2 C (99.0 F) |
| 2026 | 36.1 C (97.0 F) |
Coldest night (TNn)
| Year | Coldest night (TNn) |
|---|---|
| 1975 | -16.1 C (3.0 F) |
| 1976 | -19.4 C (-2.9 F) |
| 1977 | -18.9 C (-2.0 F) |
| 1978 | -29.4 C (-20.9 F) |
| 1979 | -28.9 C (-20.0 F) |
| 1980 | -21.7 C (-7.1 F) |
| 1981 | -21.7 C (-7.1 F) |
| 1982 | -25.0 C (-13.0 F) |
| 1983 | -27.2 C (-17.0 F) |
| 1984 | -20.6 C (-5.1 F) |
| 1985 | -26.7 C (-16.1 F) |
| 1986 | -15.6 C (3.9 F) |
| 1987 | -19.4 C (-2.9 F) |
| 1988 | -19.4 C (-2.9 F) |
| 1989 | -27.8 C (-18.0 F) |
| 1990 | -28.3 C (-18.9 F) |
| 1991 | -21.1 C (-6.0 F) |
| 1992 | -15.6 C (3.9 F) |
| 1993 | -22.8 C (-9.0 F) |
| 1994 | -21.1 C (-6.0 F) |
| 1995 | -15.0 C (5.0 F) |
| 1996 | -8.9 C (16.0 F) |
| 1997 | -1.1 C (30.0 F) |
| 2011 | -13.9 C (7.0 F) |
| 2012 | -15.0 C (5.0 F) |
| 2013 | -22.8 C (-9.0 F) |
| 2014 | -22.2 C (-8.0 F) |
| 2015 | -17.2 C (1.0 F) |
| 2016 | -23.9 C (-11.0 F) |
| 2017 | -22.8 C (-9.0 F) |
| 2018 | -22.8 C (-9.0 F) |
| 2019 | -18.9 C (-2.0 F) |
| 2020 | -15.0 C (5.0 F) |
| 2021 | -18.3 C (-0.9 F) |
| 2022 | -22.8 C (-9.0 F) |
| 2023 | -21.1 C (-6.0 F) |
| 2024 | -30.6 C (-23.1 F) |
| 2025 | -21.1 C (-6.0 F) |
| 2026 | -12.8 C (9.0 F) |
Wettest day (Rx1day)
| Year | Wettest day (Rx1day) |
|---|---|
| 1975 | 26.7 mm (1.1 in) |
| 1976 | 33.0 mm (1.3 in) |
| 1977 | 36.6 mm (1.4 in) |
| 1978 | 24.1 mm (0.9 in) |
| 1979 | 40.1 mm (1.6 in) |
| 1980 | 37.8 mm (1.5 in) |
| 1981 | 32.8 mm (1.3 in) |
| 1982 | 50.0 mm (2.0 in) |
| 1983 | 47.5 mm (1.9 in) |
| 1984 | 42.4 mm (1.7 in) |
| 1985 | 47.2 mm (1.9 in) |
| 1986 | 80.5 mm (3.2 in) |
| 1987 | 42.4 mm (1.7 in) |
| 1988 | 36.8 mm (1.4 in) |
| 1989 | 28.7 mm (1.1 in) |
| 1990 | 68.3 mm (2.7 in) |
| 1991 | 29.7 mm (1.2 in) |
| 1992 | 38.9 mm (1.5 in) |
| 1993 | 50.8 mm (2.0 in) |
| 1994 | 52.6 mm (2.1 in) |
| 1995 | 18.3 mm (0.7 in) |
| 1996 | 28.2 mm (1.1 in) |
| 1997 | 33.0 mm (1.3 in) |
| 2011 | 30.7 mm (1.2 in) |
| 2012 | 32.8 mm (1.3 in) |
| 2013 | 69.3 mm (2.7 in) |
| 2014 | 69.6 mm (2.7 in) |
| 2015 | 69.6 mm (2.7 in) |
| 2016 | 83.8 mm (3.3 in) |
| 2017 | 74.9 mm (2.9 in) |
| 2018 | 43.4 mm (1.7 in) |
| 2019 | 36.3 mm (1.4 in) |
| 2020 | 51.3 mm (2.0 in) |
| 2021 | 64.3 mm (2.5 in) |
| 2022 | 57.2 mm (2.3 in) |
| 2023 | 31.0 mm (1.2 in) |
| 2024 | 41.7 mm (1.6 in) |
| 2025 | 52.1 mm (2.1 in) |
| 2026 | 35.1 mm (1.4 in) |
Wettest five days (Rx5day)
| Year | Wettest five days (Rx5day) |
|---|---|
| 1975 | 59.7 mm (2.4 in) |
| 1976 | 68.0 mm (2.7 in) |
| 1977 | 92.2 mm (3.6 in) |
| 1978 | 53.1 mm (2.1 in) |
| 1979 | 89.4 mm (3.5 in) |
| 1980 | 89.4 mm (3.5 in) |
| 1981 | 80.1 mm (3.2 in) |
| 1982 | 129.5 mm (5.1 in) |
| 1983 | 88.9 mm (3.5 in) |
| 1984 | 78.1 mm (3.1 in) |
| 1985 | 108.7 mm (4.3 in) |
| 1986 | 128.8 mm (5.1 in) |
| 1987 | 85.1 mm (3.4 in) |
| 1988 | 90.1 mm (3.5 in) |
| 1989 | 61.7 mm (2.4 in) |
| 1990 | 137.0 mm (5.4 in) |
| 1991 | 66.5 mm (2.6 in) |
| 1992 | 58.4 mm (2.3 in) |
| 1993 | 69.0 mm (2.7 in) |
| 1994 | 87.4 mm (3.4 in) |
| 1995 | 31.2 mm (1.2 in) |
| 1996 | 74.0 mm (2.9 in) |
| 1997 | 38.4 mm (1.5 in) |
| 2011 | 70.3 mm (2.8 in) |
| 2012 | 60.2 mm (2.4 in) |
| 2013 | 88.8 mm (3.5 in) |
| 2014 | 126.1 mm (5.0 in) |
| 2015 | 108.7 mm (4.3 in) |
| 2016 | 126.5 mm (5.0 in) |
| 2017 | 138.6 mm (5.5 in) |
| 2018 | 68.5 mm (2.7 in) |
| 2019 | 69.5 mm (2.7 in) |
| 2020 | 111.2 mm (4.4 in) |
| 2021 | 81.0 mm (3.2 in) |
| 2022 | 94.7 mm (3.7 in) |
| 2023 | 55.4 mm (2.2 in) |
| 2024 | 81.0 mm (3.2 in) |
| 2025 | 129.6 mm (5.1 in) |
| 2026 | 76.5 mm (3.0 in) |
Longest dry spell (CDD)
| Year | Longest dry spell (CDD) |
|---|---|
| 1975 | 8 days |
| 1976 | 15 days |
| 1977 | 22 days |
| 1978 | 25 days |
| 1979 | 35 days |
| 1980 | 21 days |
| 1981 | 37 days |
| 1982 | 14 days |
| 1983 | 21 days |
| 1984 | 27 days |
| 1985 | 31 days |
| 1986 | 42 days |
| 1987 | 45 days |
| 1988 | 41 days |
| 1989 | 15 days |
| 1990 | 25 days |
| 1991 | 42 days |
| 1992 | 14 days |
| 1993 | 16 days |
| 1994 | 25 days |
| 1995 | 20 days |
| 1996 | 31 days |
| 1997 | 23 days |
| 2011 | 15 days |
| 2012 | 11 days |
| 2013 | 22 days |
| 2014 | 21 days |
| 2015 | 23 days |
| 2016 | 22 days |
| 2017 | 34 days |
| 2018 | 26 days |
| 2019 | 20 days |
| 2020 | 30 days |
| 2021 | 29 days |
| 2022 | 23 days |
| 2023 | 42 days |
| 2024 | 28 days |
| 2025 | 30 days |
| 2026 | 47 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
29 years with a frostAcross 29 years with a frost, the median last spring frost at Mullan falls on 30 May and the median first autumn frost on 15 September, which leaves a median of 108 days between them.
Fitted over all years, the growing season changes by +2.0 days per decade at this station.
| Measure | Median, all years | Earliest period | Recent period (1976 to 2025) | Recent against earliest | Fitted trend |
|---|---|---|---|---|---|
| Last spring frost | 30 May | n/a | 30 May | n/a | -2.6 days per decade |
| First autumn frost | 15 September | n/a | 15 September | n/a | -0.6 days per decade |
| Growing days | 108 days | n/a | 108 days | n/a | +2.0 days per decade |
A frost day is a day with a daily minimum at or below 0 C (32 F). The last spring frost and the first autumn frost are the last and first such days of the cold season, and growing days are the days between them. A negative trend for the last spring frost means it comes earlier.
Rainfall Return Levels
31 years, 1976 to 2025A day with at least 45.3 mm (1.8 in) of rain is expected about once in 2 years. A day with at least 102.2 mm (4.0 in) of rain is expected about once in 100 years.
| Expected about once in | A day with at least | Note |
|---|---|---|
| 2 years | 45.3 mm (1.8 in) | |
| 5 years | 60.0 mm (2.4 in) | |
| 10 years | 69.9 mm (2.8 in) | |
| 25 years | 82.8 mm (3.3 in) | |
| 50 years | 92.5 mm (3.6 in) | Longer than the 31 years of record |
| 100 years | 102.2 mm (4.0 in) | Longer than the 31 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, 31 years of values from 1976 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: 83.8 mm (3.3 in) in 2016; 80.5 mm (3.2 in) in 1986; 74.9 mm (2.9 in) in 2017.
Climate Twins
1990 to 2025 against 1961 to 1990Over 1990 to 2025, Mullan had a mean temperature of 7.3 C (45.2 F) and 940.7 mm (37.0 in) of rain a year. The 3 stations whose 1961 to 1990 climate was closest to that are Sandpoint Exp STN (United States, 108 km away), Kaslo (Canada, 284 km away) and New Denver (Canada, 304 km away).
| Twin station | Country | Distance away | Mean temperature, 1961-1990 | Rain a year, 1961-1990 | Climate difference |
|---|---|---|---|---|---|
| Sandpoint Exp STN | United States | 108 km (67 mi) | 7.5 C (45.5 F) | 840.8 mm (33.1 in) | 0.74 |
| Kaslo | Canada | 284 km (176 mi) | 7.2 C (45.0 F) | 856.7 mm (33.7 in) | 0.81 |
| New Denver | Canada | 304 km (189 mi) | 7.5 C (45.5 F) | 862.2 mm (33.9 in) | 0.90 |
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 2026-10-12 (12 October 2026). Records are computed by this site and are not official.
Data as of . Last revised (2026-10-13).