Maurine 12SW Weather Records (USC00395325)
Record envelope, standing records and threshold days for Maurine 12SW (USC00395325), South Dakota, United States, with 52 years of record.
Key Facts for Maurine 12SW
- Maurine 12SW (USC00395325) is a weather station in South Dakota, United States at 44.87 latitude and -102.57 longitude, 801 m (2,629 ft) above sea level.
- The station reports from 1975 to 2026, 52 years of record.
- 1,464 records set at Maurine 12SW still stand.
- Records are tracked for tmax, tmin, prcp, snow, snwd: an element needs 30 years of data to be eligible.
- Maurine 12SW tied a daily record high minimum temperature of 14.4 C (57.9 F) on 19 September 2026 (provisional).
Provisional Records
Records set in the last 60 days are provisional until they clear the revision window.
About the Station
- Location: South Dakota, United States, 44.87 latitude, -102.57 longitude.
- Elevation: 801 m (2,629 ft).
- Period of record: 1975 to 2026, 52 years.
- Eligible elements: tmax, tmin, prcp, snow, snwd.
Daily Record Envelope and 2026
21 days at or beyond a record| Month | Highest record high | Lowest record low | 2026 highest maximum | 2026 lowest minimum |
|---|---|---|---|---|
| Jan | 23.3 C (73.9 F) | -38.3 C (-36.9 F) | 16.1 C (61.0 F) | -27.8 C (-18.0 F) |
| Feb | 23.3 C (73.9 F) | -37.8 C (-36.0 F) | 18.3 C (64.9 F) | -18.9 C (-2.0 F) |
| Mar | 28.9 C (84.0 F) | -34.4 C (-29.9 F) | 27.8 C (82.0 F) | -20.6 C (-5.1 F) |
| Apr | 33.9 C (93.0 F) | -20.6 C (-5.1 F) | 32.2 C (90.0 F) | -7.8 C (18.0 F) |
| May | 38.3 C (100.9 F) | -7.8 C (18.0 F) | 32.2 C (90.0 F) | -6.7 C (19.9 F) |
| Jun | 43.3 C (109.9 F) | -1.1 C (30.0 F) | 32.8 C (91.0 F) | 2.8 C (37.0 F) |
| Jul | 45.6 C (114.1 F) | 3.9 C (39.0 F) | 43.3 C (109.9 F) | 11.7 C (53.1 F) |
| Aug | 43.3 C (109.9 F) | 1.7 C (35.1 F) | 40.6 C (105.1 F) | 5.6 C (42.1 F) |
| Sep | 41.7 C (107.1 F) | -6.7 C (19.9 F) | 36.7 C (98.1 F) | 5.6 C (42.1 F) |
| Oct | 36.7 C (98.1 F) | -23.3 C (-9.9 F) | 27.2 C (81.0 F) | 3.3 C (37.9 F) |
| Nov | 27.8 C (82.0 F) | -31.1 C (-24.0 F) | n/a | n/a |
| Dec | 21.7 C (71.1 F) | -37.8 C (-36.0 F) | n/a | n/a |
Which Years Hold Standing Records
1,464 standing records| Year set | Standing records |
|---|---|
| 1975 | 25 |
| 1976 | 22 |
| 1977 | 37 |
| 1978 | 22 |
| 1979 | 28 |
| 1980 | 34 |
| 1981 | 28 |
| 1982 | 20 |
| 1983 | 35 |
| 1984 | 19 |
| 1985 | 58 |
| 1986 | 26 |
| 1987 | 25 |
| 1988 | 40 |
| 1989 | 42 |
| 1990 | 29 |
| 1991 | 38 |
| 1992 | 50 |
| 1993 | 21 |
| 1994 | 22 |
| 1995 | 30 |
| 1996 | 40 |
| 1997 | 38 |
| 1998 | 20 |
| 1999 | 30 |
| 2000 | 31 |
| 2001 | 10 |
| 2002 | 28 |
| 2003 | 18 |
| 2004 | 25 |
| 2005 | 32 |
| 2006 | 24 |
| 2007 | 28 |
| 2008 | 17 |
| 2009 | 34 |
| 2010 | 17 |
| 2011 | 22 |
| 2012 | 35 |
| 2013 | 24 |
| 2014 | 37 |
| 2015 | 25 |
| 2016 | 23 |
| 2017 | 27 |
| 2018 | 23 |
| 2019 | 15 |
| 2020 | 33 |
| 2021 | 39 |
| 2022 | 27 |
| 2023 | 11 |
| 2024 | 24 |
| 2025 | 30 |
| 2026 | 26 |
All-Time Record Progression
3 new records| Date | Kind | Detail |
|---|---|---|
| 2013-10-05 | Record daily snowfall | Record daily snowfall 41.4 cm (16.3 in) |
| 2018-01-01 | Record low minimum temperature | Record low minimum temperature -38.3 C (-36.9 F) |
| 2025-08-02 | Record daily precipitation | Record daily precipitation 110.0 mm (4.3 in) |
Wettest Day of Each Month
Aug: 110.0 mm (4.3 in)| Month | Record daily precipitation (mm) | Date |
|---|---|---|
| Jan | 50.8 mm (2.0 in) | 16 January 2002 |
| Feb | 50.8 mm (2.0 in) | 10 February 2002 |
| Mar | 59.7 mm (2.4 in) | 24 March 2009 |
| Apr | 61.0 mm (2.4 in) | 23 April 2022 |
| May | 67.6 mm (2.7 in) | 13 May 2023 |
| Jun | 78.2 mm (3.1 in) | 15 June 1980 |
| Jul | 65.5 mm (2.6 in) | 4 July 2009 |
| Aug | 110.0 mm (4.3 in) | 2 August 2025 |
| Sep | 53.8 mm (2.1 in) | 23 September 1977 |
| Oct | 73.2 mm (2.9 in) | 5 October 2013 |
| Nov | 52.6 mm (2.1 in) | 6 November 2008 |
| Dec | 61.0 mm (2.4 in) | 15 December 1996 |
Period of Record Coverage
1975 to 2026| Year | Days with data | Share of year | Complete |
|---|---|---|---|
| 1975 | 364 | 100% | Yes |
| 1976 | 361 | 99% | Yes |
| 1977 | 363 | 99% | Yes |
| 1978 | 356 | 98% | Yes |
| 1979 | 363 | 99% | Yes |
| 1980 | 361 | 99% | Yes |
| 1981 | 364 | 100% | Yes |
| 1982 | 356 | 98% | Yes |
| 1983 | 349 | 96% | Yes |
| 1984 | 358 | 98% | Yes |
| 1985 | 350 | 96% | Yes |
| 1986 | 363 | 99% | Yes |
| 1987 | 363 | 99% | Yes |
| 1988 | 364 | 99% | Yes |
| 1989 | 358 | 98% | Yes |
| 1990 | 364 | 100% | Yes |
| 1991 | 362 | 99% | Yes |
| 1992 | 366 | 100% | Yes |
| 1993 | 364 | 100% | Yes |
| 1994 | 363 | 99% | Yes |
| 1995 | 345 | 95% | Yes |
| 1996 | 365 | 100% | Yes |
| 1997 | 362 | 99% | Yes |
| 1998 | 361 | 99% | Yes |
| 1999 | 362 | 99% | Yes |
| 2000 | 365 | 100% | Yes |
| 2001 | 364 | 100% | Yes |
| 2002 | 360 | 99% | Yes |
| 2003 | 176 | 48% | No |
| 2004 | 335 | 92% | Yes |
| 2005 | 332 | 91% | Yes |
| 2006 | 357 | 98% | Yes |
| 2007 | 364 | 100% | Yes |
| 2008 | 363 | 99% | Yes |
| 2009 | 333 | 91% | Yes |
| 2010 | 363 | 99% | Yes |
| 2011 | 363 | 99% | Yes |
| 2012 | 366 | 100% | Yes |
| 2013 | 365 | 100% | Yes |
| 2014 | 365 | 100% | Yes |
| 2015 | 363 | 99% | Yes |
| 2016 | 359 | 98% | Yes |
| 2017 | 365 | 100% | Yes |
| 2018 | 364 | 100% | Yes |
| 2019 | 343 | 94% | Yes |
| 2020 | 366 | 100% | Yes |
| 2021 | 365 | 100% | Yes |
| 2022 | 365 | 100% | Yes |
| 2023 | 365 | 100% | Yes |
| 2024 | 366 | 100% | Yes |
| 2025 | 365 | 100% | Yes |
| 2026 | 263 | 72% | No |
Latest Records
20| Date | Station | Record | Value | Beat old record by | Old record stood | Significance |
|---|---|---|---|---|---|---|
| 19 September 2026 | Maurine 12SW, US | daily high min (Tie, Provisional) | 14.4 C (57.9 F) | tie | 21 years | 2 of 100 (Routine) |
| 6 August 2026 | Maurine 12SW, US | daily low min | 8.9 C (48.0 F) | 1.7 C (3.1 F) | 32 years | 18 of 100 (Routine) |
| 4 August 2026 | Maurine 12SW, US | daily low min (Tie) | 6.1 C (43.0 F) | tie | 48 years | 4 of 100 (Routine) |
| 27 July 2026 | Maurine 12SW, US | daily high min | 22.2 C (72.0 F) | 1.6 C (2.9 F) | 39 years | 20 of 100 (Routine) |
| 27 July 2026 | Maurine 12SW, US | daily high max | 41.1 C (106.0 F) | 0.5 C (0.9 F) | 39 years | 16 of 100 (Routine) |
| 26 July 2026 | Maurine 12SW, US | daily high max | 43.3 C (109.9 F) | 1.6 C (2.9 F) | 1 year | 8 of 100 (Routine) |
| 25 July 2026 | Maurine 12SW, US | daily high max | 41.1 C (106.0 F) | 0.5 C (0.9 F) | 19 years | 10 of 100 (Routine) |
| 15 July 2026 | Maurine 12SW, US | daily high min (Tie) | 20.6 C (69.1 F) | tie | 13 years | 2 of 100 (Routine) |
| 14 July 2026 | Maurine 12SW, US | daily high min | 22.8 C (73.0 F) | 4.5 C (8.1 F) | 28 years | 26 of 100 (Routine) |
| 14 July 2026 | Maurine 12SW, US | daily high max | 40.0 C (104.0 F) | 0.6 C (1.1 F) | 43 years | 18 of 100 (Routine) |
| 13 July 2026 | Maurine 12SW, US | daily high min | 21.7 C (71.1 F) | 0.6 C (1.1 F) | 40 years | 18 of 100 (Routine) |
| 13 July 2026 | Maurine 12SW, US | daily high max | 41.7 C (107.1 F) | 1.7 C (3.1 F) | 20 years | 14 of 100 (Routine) |
| 12 July 2026 | Maurine 12SW, US | daily high min (Tie) | 21.7 C (71.1 F) | tie | 12 years | 2 of 100 (Routine) |
| 22 June 2026 | Maurine 12SW, US | daily low max | 15.6 C (60.1 F) | 0.5 C (0.9 F) | 36 years | 16 of 100 (Routine) |
| 14 June 2026 | Maurine 12SW, US | daily low min | 2.8 C (37.0 F) | 1.6 C (2.9 F) | 43 years | 21 of 100 (Routine) |
| 7 June 2026 | Maurine 12SW, US | daily high min | 18.9 C (66.0 F) | 1.7 C (3.1 F) | 39 years | 20 of 100 (Routine) |
| 31 May 2026 | Maurine 12SW, US | daily rain | 34.8 mm (1.4 in) | 20.3 mm (0.8 in) | 12 years | 27 of 100 (Routine) |
| 26 May 2026 | Maurine 12SW, US | daily high max (Tie) | 31.7 C (89.1 F) | tie | 43 years | 4 of 100 (Routine) |
| 7 May 2026 | Maurine 12SW, US | daily low min | -6.1 C (21.0 F) | 2.8 C (5.0 F) | 45 years | 24 of 100 (Routine) |
| 6 May 2026 | Maurine 12SW, US | daily low min | -6.7 C (19.9 F) | 1.1 C (2.0 F) | 36 years | 18 of 100 (Routine) |
Climate Trend
45 complete years, 1975 to 2025| Year | Annual mean temperature | Difference from the station mean |
|---|---|---|
| 1975 | 6.0 C | -1.42 C |
| 1976 | 7.8 C | +0.36 C |
| 1977 | 7.9 C | +0.44 C |
| 1978 | 5.5 C | -1.91 C |
| 1979 | 6.1 C | -1.36 C |
| 1980 | 8.8 C | +1.40 C |
| 1981 | 9.4 C | +1.94 C |
| 1982 | 6.5 C | -0.98 C |
| 1983 | 8.0 C | +0.54 C |
| 1984 | 7.0 C | -0.44 C |
| 1985 | 6.2 C | -1.26 C |
| 1986 | 7.2 C | -0.26 C |
| 1987 | 8.7 C | +1.22 C |
| 1988 | 7.9 C | +0.48 C |
| 1989 | 6.4 C | -0.99 C |
| 1990 | 7.8 C | +0.38 C |
| 1991 | 7.7 C | +0.29 C |
| 1992 | 7.4 C | -0.03 C |
| 1993 | 4.8 C | -2.64 C |
| 1994 | 6.8 C | -0.64 C |
| 1996 | 4.7 C | -2.78 C |
| 1997 | 6.9 C | -0.50 C |
| 1998 | 8.2 C | +0.74 C |
| 1999 | 8.2 C | +0.75 C |
| 2000 | 7.2 C | -0.23 C |
| 2001 | 7.7 C | +0.29 C |
| 2002 | 7.5 C | +0.06 C |
| 2006 | 9.1 C | +1.71 C |
| 2007 | 8.6 C | +1.14 C |
| 2008 | 6.3 C | -1.09 C |
| 2010 | 6.4 C | -1.04 C |
| 2011 | 6.5 C | -0.92 C |
| 2012 | 9.2 C | +1.81 C |
| 2013 | 7.3 C | -0.16 C |
| 2014 | 6.4 C | -1.01 C |
| 2015 | 8.6 C | +1.20 C |
| 2016 | 8.8 C | +1.35 C |
| 2017 | 7.9 C | +0.44 C |
| 2018 | 6.0 C | -1.40 C |
| 2020 | 8.0 C | +0.52 C |
| 2021 | 8.9 C | +1.46 C |
| 2022 | 7.2 C | -0.24 C |
| 2023 | 8.2 C | +0.77 C |
| 2024 | 8.9 C | +1.47 C |
| 2025 | 8.1 C | +0.65 C |
The fitted trend in annual mean temperature here over 1975 to 2025 is 0.19 C (-0.03 to 0.41) per decade. The interval includes zero, so the trend is not clearly different from zero. In Fahrenheit: 0.3 F (-0.1 to 0.7) per decade. The slope is a straight line fitted to 45 complete years; the brackets give its 95 percent interval.
| Measure | Per decade (C) | Per decade (F) | Period | Complete years | Reading |
|---|---|---|---|---|---|
| Annual mean temperature | 0.19 C (-0.03 to 0.41) per decade | 0.3 F (-0.1 to 0.7) per decade | 1975 to 2025 | 45 | Not clearly different from zero |
| Mean daily maximum | 0.3 C (0.1 to 0.6) per decade | 0.6 F (0.1 to 1.1) per decade | 1975 to 2025 | 45 | Rise |
| Mean daily minimum | 0.04 C (-0.15 to 0.24) per decade | 0.1 F (-0.3 to 0.4) per decade | 1975 to 2025 | 45 | 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
1975 to 2026| Measure | Record | Year of the record | Median year | Years with a value |
|---|---|---|---|---|
| Hottest day (TXx) | 45.6 C (114.1 F) | 1977 | 40.6 C (105.1 F) | 52 |
| Coldest night (TNn) | -38.3 C (-36.9 F) | 2018 | -31.9 C (-25.5 F) | 52 |
| Wettest day (Rx1day) | 110.0 mm (4.3 in) | 2025 | 46.1 mm (1.8 in) | 52 |
| Wettest five days (Rx5day) | 124.0 mm (4.9 in) | 2025 | 66.9 mm (2.6 in) | 52 |
| Longest dry spell (CDD) | 80 days | 1997 | 35 days | 52 |
Hottest day (TXx)
| Year | Hottest day (TXx) |
|---|---|
| 1975 | 42.2 C (108.0 F) |
| 1976 | 40.6 C (105.1 F) |
| 1977 | 45.6 C (114.1 F) |
| 1978 | 41.1 C (106.0 F) |
| 1979 | 41.1 C (106.0 F) |
| 1980 | 42.2 C (108.0 F) |
| 1981 | 43.3 C (109.9 F) |
| 1982 | 38.3 C (100.9 F) |
| 1983 | 40.6 C (105.1 F) |
| 1984 | 39.4 C (102.9 F) |
| 1985 | 42.2 C (108.0 F) |
| 1986 | 38.3 C (100.9 F) |
| 1987 | 40.6 C (105.1 F) |
| 1988 | 43.3 C (109.9 F) |
| 1989 | 42.8 C (109.0 F) |
| 1990 | 41.7 C (107.1 F) |
| 1991 | 39.4 C (102.9 F) |
| 1992 | 36.1 C (97.0 F) |
| 1993 | 33.9 C (93.0 F) |
| 1994 | 38.3 C (100.9 F) |
| 1995 | 38.3 C (100.9 F) |
| 1996 | 37.8 C (100.0 F) |
| 1997 | 37.8 C (100.0 F) |
| 1998 | 40.0 C (104.0 F) |
| 1999 | 38.9 C (102.0 F) |
| 2000 | 39.4 C (102.9 F) |
| 2001 | 41.7 C (107.1 F) |
| 2002 | 43.3 C (109.9 F) |
| 2003 | 37.2 C (99.0 F) |
| 2004 | 40.0 C (104.0 F) |
| 2005 | 41.1 C (106.0 F) |
| 2006 | 45.0 C (113.0 F) |
| 2007 | 44.4 C (111.9 F) |
| 2008 | 37.8 C (100.0 F) |
| 2009 | 36.1 C (97.0 F) |
| 2010 | 41.1 C (106.0 F) |
| 2011 | 39.4 C (102.9 F) |
| 2012 | 42.2 C (108.0 F) |
| 2013 | 41.1 C (106.0 F) |
| 2014 | 37.8 C (100.0 F) |
| 2015 | 41.7 C (107.1 F) |
| 2016 | 41.7 C (107.1 F) |
| 2017 | 42.2 C (108.0 F) |
| 2018 | 38.3 C (100.9 F) |
| 2019 | 36.1 C (97.0 F) |
| 2020 | 40.0 C (104.0 F) |
| 2021 | 43.9 C (111.0 F) |
| 2022 | 42.8 C (109.0 F) |
| 2023 | 38.9 C (102.0 F) |
| 2024 | 41.7 C (107.1 F) |
| 2025 | 38.3 C (100.9 F) |
| 2026 | 43.3 C (109.9 F) |
Coldest night (TNn)
| Year | Coldest night (TNn) |
|---|---|
| 1975 | -32.2 C (-26.0 F) |
| 1976 | -33.3 C (-27.9 F) |
| 1977 | -32.2 C (-26.0 F) |
| 1978 | -32.8 C (-27.0 F) |
| 1979 | -33.3 C (-27.9 F) |
| 1980 | -30.0 C (-22.0 F) |
| 1981 | -26.7 C (-16.1 F) |
| 1982 | -33.9 C (-29.0 F) |
| 1983 | -34.4 C (-29.9 F) |
| 1984 | -30.0 C (-22.0 F) |
| 1985 | -35.6 C (-32.1 F) |
| 1986 | -27.8 C (-18.0 F) |
| 1987 | -23.3 C (-9.9 F) |
| 1988 | -30.6 C (-23.1 F) |
| 1989 | -36.7 C (-34.1 F) |
| 1990 | -37.8 C (-36.0 F) |
| 1991 | -27.8 C (-18.0 F) |
| 1992 | -26.7 C (-16.1 F) |
| 1993 | -31.1 C (-24.0 F) |
| 1994 | -37.8 C (-36.0 F) |
| 1995 | -27.8 C (-18.0 F) |
| 1996 | -35.0 C (-31.0 F) |
| 1997 | -30.0 C (-22.0 F) |
| 1998 | -32.2 C (-26.0 F) |
| 1999 | -29.4 C (-20.9 F) |
| 2000 | -27.2 C (-17.0 F) |
| 2001 | -30.0 C (-22.0 F) |
| 2002 | -25.0 C (-13.0 F) |
| 2003 | -33.3 C (-27.9 F) |
| 2004 | -27.2 C (-17.0 F) |
| 2005 | -35.6 C (-32.1 F) |
| 2006 | -27.8 C (-18.0 F) |
| 2007 | -34.4 C (-29.9 F) |
| 2008 | -28.3 C (-18.9 F) |
| 2009 | -28.3 C (-18.9 F) |
| 2010 | -31.7 C (-25.1 F) |
| 2011 | -33.3 C (-27.9 F) |
| 2012 | -26.1 C (-15.0 F) |
| 2013 | -33.9 C (-29.0 F) |
| 2014 | -34.4 C (-29.9 F) |
| 2015 | -30.0 C (-22.0 F) |
| 2016 | -33.3 C (-27.9 F) |
| 2017 | -33.9 C (-29.0 F) |
| 2018 | -38.3 C (-36.9 F) |
| 2019 | -33.9 C (-29.0 F) |
| 2020 | -27.8 C (-18.0 F) |
| 2021 | -33.9 C (-29.0 F) |
| 2022 | -31.1 C (-24.0 F) |
| 2023 | -30.6 C (-23.1 F) |
| 2024 | -33.9 C (-29.0 F) |
| 2025 | -34.4 C (-29.9 F) |
| 2026 | -27.8 C (-18.0 F) |
Wettest day (Rx1day)
| Year | Wettest day (Rx1day) |
|---|---|
| 1975 | 42.7 mm (1.7 in) |
| 1976 | 53.3 mm (2.1 in) |
| 1977 | 53.8 mm (2.1 in) |
| 1978 | 27.9 mm (1.1 in) |
| 1979 | 20.8 mm (0.8 in) |
| 1980 | 78.2 mm (3.1 in) |
| 1981 | 36.1 mm (1.4 in) |
| 1982 | 47.0 mm (1.9 in) |
| 1983 | 30.2 mm (1.2 in) |
| 1984 | 31.8 mm (1.3 in) |
| 1985 | 23.1 mm (0.9 in) |
| 1986 | 46.5 mm (1.8 in) |
| 1987 | 40.6 mm (1.6 in) |
| 1988 | 63.0 mm (2.5 in) |
| 1989 | 27.7 mm (1.1 in) |
| 1990 | 45.0 mm (1.8 in) |
| 1991 | 63.8 mm (2.5 in) |
| 1992 | 29.0 mm (1.1 in) |
| 1993 | 52.8 mm (2.1 in) |
| 1994 | 44.2 mm (1.7 in) |
| 1995 | 58.7 mm (2.3 in) |
| 1996 | 61.0 mm (2.4 in) |
| 1997 | 26.2 mm (1.0 in) |
| 1998 | 49.5 mm (1.9 in) |
| 1999 | 50.8 mm (2.0 in) |
| 2000 | 51.3 mm (2.0 in) |
| 2001 | 31.5 mm (1.2 in) |
| 2002 | 50.8 mm (2.0 in) |
| 2003 | 29.5 mm (1.2 in) |
| 2004 | 43.9 mm (1.7 in) |
| 2005 | 26.7 mm (1.1 in) |
| 2006 | 29.2 mm (1.1 in) |
| 2007 | 49.3 mm (1.9 in) |
| 2008 | 64.8 mm (2.6 in) |
| 2009 | 65.5 mm (2.6 in) |
| 2010 | 49.3 mm (1.9 in) |
| 2011 | 52.8 mm (2.1 in) |
| 2012 | 29.0 mm (1.1 in) |
| 2013 | 73.2 mm (2.9 in) |
| 2014 | 24.6 mm (1.0 in) |
| 2015 | 50.3 mm (2.0 in) |
| 2016 | 27.2 mm (1.1 in) |
| 2017 | 18.8 mm (0.7 in) |
| 2018 | 54.6 mm (2.1 in) |
| 2019 | 45.7 mm (1.8 in) |
| 2020 | 29.7 mm (1.2 in) |
| 2021 | 59.7 mm (2.4 in) |
| 2022 | 61.0 mm (2.4 in) |
| 2023 | 70.4 mm (2.8 in) |
| 2024 | 24.6 mm (1.0 in) |
| 2025 | 110.0 mm (4.3 in) |
| 2026 | 34.8 mm (1.4 in) |
Wettest five days (Rx5day)
| Year | Wettest five days (Rx5day) |
|---|---|
| 1975 | 80.8 mm (3.2 in) |
| 1976 | 68.3 mm (2.7 in) |
| 1977 | 74.4 mm (2.9 in) |
| 1978 | 48.8 mm (1.9 in) |
| 1979 | 42.7 mm (1.7 in) |
| 1980 | 88.9 mm (3.5 in) |
| 1981 | 49.2 mm (1.9 in) |
| 1982 | 87.6 mm (3.4 in) |
| 1983 | 49.8 mm (2.0 in) |
| 1984 | 80.1 mm (3.2 in) |
| 1985 | 55.8 mm (2.2 in) |
| 1986 | 61.3 mm (2.4 in) |
| 1987 | 66.7 mm (2.6 in) |
| 1988 | 74.7 mm (2.9 in) |
| 1989 | 49.3 mm (1.9 in) |
| 1990 | 55.2 mm (2.2 in) |
| 1991 | 63.8 mm (2.5 in) |
| 1992 | 65.1 mm (2.6 in) |
| 1993 | 80.5 mm (3.2 in) |
| 1994 | 67.0 mm (2.6 in) |
| 1995 | 111.9 mm (4.4 in) |
| 1996 | 99.1 mm (3.9 in) |
| 1997 | 46.0 mm (1.8 in) |
| 1998 | 84.6 mm (3.3 in) |
| 1999 | 76.2 mm (3.0 in) |
| 2000 | 74.9 mm (2.9 in) |
| 2001 | 45.5 mm (1.8 in) |
| 2002 | 50.8 mm (2.0 in) |
| 2003 | 41.7 mm (1.6 in) |
| 2004 | 81.5 mm (3.2 in) |
| 2005 | 57.2 mm (2.3 in) |
| 2006 | 49.3 mm (1.9 in) |
| 2007 | 51.6 mm (2.0 in) |
| 2008 | 112.7 mm (4.4 in) |
| 2009 | 75.4 mm (3.0 in) |
| 2010 | 88.6 mm (3.5 in) |
| 2011 | 62.9 mm (2.5 in) |
| 2012 | 31.7 mm (1.2 in) |
| 2013 | 108.7 mm (4.3 in) |
| 2014 | 53.6 mm (2.1 in) |
| 2015 | 93.4 mm (3.7 in) |
| 2016 | 48.3 mm (1.9 in) |
| 2017 | 29.0 mm (1.1 in) |
| 2018 | 99.9 mm (3.9 in) |
| 2019 | 89.3 mm (3.5 in) |
| 2020 | 44.8 mm (1.8 in) |
| 2021 | 78.5 mm (3.1 in) |
| 2022 | 68.4 mm (2.7 in) |
| 2023 | 113.8 mm (4.5 in) |
| 2024 | 34.1 mm (1.3 in) |
| 2025 | 124.0 mm (4.9 in) |
| 2026 | 43.4 mm (1.7 in) |
Longest dry spell (CDD)
| Year | Longest dry spell (CDD) |
|---|---|
| 1975 | 34 days |
| 1976 | 43 days |
| 1977 | 27 days |
| 1978 | 43 days |
| 1979 | 54 days |
| 1980 | 38 days |
| 1981 | 53 days |
| 1982 | 22 days |
| 1983 | 37 days |
| 1984 | 47 days |
| 1985 | 31 days |
| 1986 | 30 days |
| 1987 | 57 days |
| 1988 | 41 days |
| 1989 | 31 days |
| 1990 | 44 days |
| 1991 | 43 days |
| 1992 | 52 days |
| 1993 | 22 days |
| 1994 | 25 days |
| 1995 | 23 days |
| 1996 | 29 days |
| 1997 | 80 days |
| 1998 | 36 days |
| 1999 | 41 days |
| 2000 | 50 days |
| 2001 | 34 days |
| 2002 | 34 days |
| 2003 | 22 days |
| 2004 | 26 days |
| 2005 | 17 days |
| 2006 | 48 days |
| 2007 | 31 days |
| 2008 | 33 days |
| 2009 | 38 days |
| 2010 | 32 days |
| 2011 | 40 days |
| 2012 | 47 days |
| 2013 | 49 days |
| 2014 | 33 days |
| 2015 | 32 days |
| 2016 | 21 days |
| 2017 | 33 days |
| 2018 | 28 days |
| 2019 | 17 days |
| 2020 | 43 days |
| 2021 | 67 days |
| 2022 | 46 days |
| 2023 | 35 days |
| 2024 | 32 days |
| 2025 | 68 days |
| 2026 | 26 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
45 years with a frostAcross 45 years with a frost, the median last spring frost at Maurine 12SW falls on 13 May and the median first autumn frost on 23 September, which leaves a median of 134 days between them.
Fitted over all years, the growing season changes by +3.4 days per decade at this station.
| Measure | Median, all years | Earliest period | Recent period (1990 to 2025) | Recent against earliest | Fitted trend |
|---|---|---|---|---|---|
| Last spring frost | 13 May | n/a | 13 May | n/a | -0.5 days per decade |
| First autumn frost | 23 September | n/a | 27 September | n/a | +2.9 days per decade |
| Growing days | 134 days | n/a | 138 days | n/a | +3.4 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
46 years, 1977 to 2025A day with at least 44.3 mm (1.7 in) of rain is expected about once in 2 years. A day with at least 96.9 mm (3.8 in) of rain is expected about once in 100 years.
| Expected about once in | A day with at least | Note |
|---|---|---|
| 2 years | 44.3 mm (1.7 in) | |
| 5 years | 60.7 mm (2.4 in) | |
| 10 years | 70.6 mm (2.8 in) | |
| 25 years | 82.0 mm (3.2 in) | |
| 50 years | 89.7 mm (3.5 in) | Longer than the 46 years of record |
| 100 years | 96.9 mm (3.8 in) | Longer than the 46 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, 46 years of values from 1977 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: 110.0 mm (4.3 in) in 2025; 78.2 mm (3.1 in) in 1980; 73.2 mm (2.9 in) in 2013.
Station Changes
No change in the annual mean temperature of this station was found against its neighbours.
Climate Twins
2010 to 2025 against 1961 to 1990Over 2010 to 2025, Maurine 12SW had a mean temperature of 7.8 C (46.0 F) and 458.1 mm (18.0 in) of rain a year. The 3 stations whose 1961 to 1990 climate was closest to that are Mission (United States, 231 km away), Harrington (United States, 216 km away) and Cottonwood 2 E (United States, 115 km away).
| Twin station | Country | Distance away | Mean temperature, 1961-1990 | Rain a year, 1961-1990 | Climate difference |
|---|---|---|---|---|---|
| Mission | United States | 231 km (144 mi) | 8.0 C (46.3 F) | 458.1 mm (18.0 in) | 0.95 |
| Harrington | United States | 216 km (134 mi) | 8.0 C (46.5 F) | 470.2 mm (18.5 in) | 0.98 |
| Cottonwood 2 E | United States | 115 km (71 mi) | 8.1 C (46.6 F) | 422.1 mm (16.6 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 2026-10-12 (12 October 2026). Records are computed by this site and are not official.
Data as of . Last revised (2026-10-13).