Moses Lake Grant Co AP Weather Records (USW00024110)
Record envelope, standing records and threshold days for Moses Lake Grant Co AP (USW00024110), Washington, United States, with 78 years of record.
Key Facts for Moses Lake Grant Co AP
- Moses Lake Grant Co AP (USW00024110) is a weather station in Washington, United States at 47.19 latitude and -119.31 longitude, 356 m (1,169 ft) above sea level.
- The station reports from 1949 to 2026, 78 years of record.
- 1,464 records set at Moses Lake Grant Co AP still stand.
- Records are tracked for tmax, tmin, prcp: an element needs 30 years of data to be eligible.
- Moses Lake Grant Co AP set a daily record low maximum temperature of 13.9 C (57.0 F) on 13 September 2026 (provisional).
Provisional Records
Records set in the last 60 days are provisional until they clear the revision window.
About the Station
- Location: Washington, United States, 47.19 latitude, -119.31 longitude.
- Elevation: 356 m (1,169 ft).
- Period of record: 1949 to 2026, 78 years.
- Eligible elements: tmax, tmin, prcp.
Daily Record Envelope and 2026
10 days at or beyond a record| Month | Highest record high | Lowest record low | 2026 highest maximum | 2026 lowest minimum |
|---|---|---|---|---|
| Jan | 15.6 C (60.1 F) | -30.0 C (-22.0 F) | 10.6 C (51.1 F) | -10.0 C (14.0 F) |
| Feb | 18.3 C (64.9 F) | -22.8 C (-9.0 F) | 15.6 C (60.1 F) | -8.9 C (16.0 F) |
| Mar | 23.9 C (75.0 F) | -17.1 C (1.2 F) | 23.9 C (75.0 F) | -5.0 C (23.0 F) |
| Apr | 31.7 C (89.1 F) | -6.0 C (21.2 F) | 27.2 C (81.0 F) | -2.2 C (28.0 F) |
| May | 36.1 C (97.0 F) | -3.8 C (25.2 F) | 35.6 C (96.1 F) | 1.7 C (35.1 F) |
| Jun | 45.6 C (114.1 F) | 2.8 C (37.0 F) | 35.0 C (95.0 F) | 6.7 C (44.1 F) |
| Jul | 42.8 C (109.0 F) | 5.6 C (42.1 F) | 38.3 C (100.9 F) | 9.4 C (48.9 F) |
| Aug | 44.4 C (111.9 F) | 5.6 C (42.1 F) | 40.0 C (104.0 F) | 6.7 C (44.1 F) |
| Sep | 37.8 C (100.0 F) | -2.8 C (27.0 F) | 29.4 C (84.9 F) | 0.6 C (33.1 F) |
| Oct | 30.0 C (86.0 F) | -15.0 C (5.0 F) | 27.2 C (81.0 F) | 0.0 C (32.0 F) |
| Nov | 21.1 C (70.0 F) | -28.2 C (-18.8 F) | n/a | n/a |
| Dec | 20.0 C (68.0 F) | -25.0 C (-13.0 F) | n/a | n/a |
Which Years Hold Standing Records
1,464 standing records| Year set | Standing records |
|---|---|
| 1949 | 41 |
| 1950 | 45 |
| 1951 | 29 |
| 1952 | 37 |
| 1953 | 32 |
| 1954 | 33 |
| 1955 | 50 |
| 1956 | 44 |
| 1957 | 36 |
| 1958 | 53 |
| 1959 | 24 |
| 1960 | 33 |
| 1961 | 32 |
| 1962 | 33 |
| 1963 | 31 |
| 1964 | 24 |
| 1965 | 28 |
| 1966 | 1 |
| 1997 | 7 |
| 1998 | 25 |
| 1999 | 41 |
| 2000 | 22 |
| 2001 | 24 |
| 2002 | 44 |
| 2003 | 35 |
| 2004 | 19 |
| 2005 | 13 |
| 2006 | 34 |
| 2007 | 18 |
| 2008 | 34 |
| 2009 | 22 |
| 2010 | 30 |
| 2011 | 26 |
| 2012 | 26 |
| 2013 | 37 |
| 2014 | 37 |
| 2015 | 36 |
| 2016 | 33 |
| 2017 | 24 |
| 2018 | 21 |
| 2019 | 42 |
| 2020 | 36 |
| 2021 | 46 |
| 2022 | 38 |
| 2023 | 17 |
| 2024 | 31 |
| 2025 | 27 |
| 2026 | 13 |
All-Time Record Progression
1 new records| Date | Kind | Detail |
|---|---|---|
| 2021-06-29 | Record high maximum temperature | Record high maximum temperature 45.6 C (114.1 F) |
Wettest Day of Each Month
Feb: 63.5 mm (2.5 in)| Month | Record daily precipitation (mm) | Date |
|---|---|---|
| Jan | 26.2 mm (1.0 in) | 31 January 1963 |
| Feb | 63.5 mm (2.5 in) | 1 February 1961 |
| Mar | 13.2 mm (0.5 in) | 26 March 1959 |
| Apr | 27.9 mm (1.1 in) | 13 April 2000 |
| May | 21.6 mm (0.9 in) | 9 May 2005 |
| Jun | 35.6 mm (1.4 in) | 4 June 1951 |
| Jul | 25.1 mm (1.0 in) | 7 July 2022 |
| Aug | 19.6 mm (0.8 in) | 28 August 1951 |
| Sep | 17.3 mm (0.7 in) | 15 September 1959 |
| Oct | 17.8 mm (0.7 in) | 1 October 1951 |
| Nov | 19.1 mm (0.8 in) | 20 November 1960 |
| Dec | 15.2 mm (0.6 in) | 7 December 2015 |
Period of Record Coverage
1949 to 2026| Year | Days with data | Share of year | Complete |
|---|---|---|---|
| 1949 | 287 | 79% | No |
| 1950 | 365 | 100% | Yes |
| 1951 | 365 | 100% | Yes |
| 1952 | 366 | 100% | Yes |
| 1953 | 365 | 100% | Yes |
| 1954 | 365 | 100% | Yes |
| 1955 | 365 | 100% | Yes |
| 1956 | 364 | 99% | Yes |
| 1957 | 364 | 100% | Yes |
| 1958 | 365 | 100% | Yes |
| 1959 | 365 | 100% | Yes |
| 1960 | 366 | 100% | Yes |
| 1961 | 365 | 100% | Yes |
| 1962 | 365 | 100% | Yes |
| 1963 | 365 | 100% | Yes |
| 1964 | 366 | 100% | Yes |
| 1965 | 365 | 100% | Yes |
| 1966 | 98 | 27% | No |
| 1997 | 173 | 47% | No |
| 1998 | 365 | 100% | Yes |
| 1999 | 363 | 99% | Yes |
| 2000 | 359 | 98% | Yes |
| 2001 | 365 | 100% | Yes |
| 2002 | 364 | 100% | Yes |
| 2003 | 362 | 99% | Yes |
| 2004 | 366 | 100% | Yes |
| 2005 | 365 | 100% | Yes |
| 2006 | 364 | 100% | Yes |
| 2007 | 365 | 100% | Yes |
| 2008 | 366 | 100% | Yes |
| 2009 | 365 | 100% | Yes |
| 2010 | 364 | 100% | Yes |
| 2011 | 365 | 100% | Yes |
| 2012 | 365 | 100% | Yes |
| 2013 | 365 | 100% | Yes |
| 2014 | 360 | 99% | Yes |
| 2015 | 365 | 100% | Yes |
| 2016 | 366 | 100% | Yes |
| 2017 | 365 | 100% | Yes |
| 2018 | 365 | 100% | Yes |
| 2019 | 364 | 100% | Yes |
| 2020 | 366 | 100% | Yes |
| 2021 | 365 | 100% | Yes |
| 2022 | 358 | 98% | Yes |
| 2023 | 365 | 100% | Yes |
| 2024 | 366 | 100% | Yes |
| 2025 | 365 | 100% | Yes |
| 2026 | 284 | 78% | No |
Latest Records
20| Date | Station | Record | Value | Beat old record by | Old record stood | Significance |
|---|---|---|---|---|---|---|
| 13 September 2026 | Moses Lake Grant Co AP, US | daily low max (Provisional) | 13.9 C (57.0 F) | 5.0 C (9.0 F) | 21 years | 23 of 100 (Routine) |
| 2 September 2026 | Moses Lake Grant Co AP, US | daily rain (Provisional) | 0.3 mm (0.01 in) | 0.3 mm (0.01 in) | 76 years | 20 of 100 (Routine) |
| 22 August 2026 | Moses Lake Grant Co AP, US | daily high min (Tie, Provisional) | 20.0 C (68.0 F) | tie | 68 years | 6 of 100 (Routine) |
| 21 August 2026 | Moses Lake Grant Co AP, US | daily high max (Provisional) | 40.0 C (104.0 F) | 0.6 C (1.1 F) | 20 years | 14 of 100 (Routine) |
| 4 August 2026 | Moses Lake Grant Co AP, US | daily low min | 9.4 C (48.9 F) | 1.7 C (3.1 F) | 20 years | 18 of 100 (Routine) |
| 16 July 2026 | Moses Lake Grant Co AP, US | daily high min | 20.6 C (69.1 F) | 0.6 C (1.1 F) | 73 years | 30 of 100 (Routine) |
| 28 May 2026 | Moses Lake Grant Co AP, US | daily high max | 35.6 C (96.1 F) | 0.6 C (1.1 F) | 20 years | 14 of 100 (Routine) |
| 17 May 2026 | Moses Lake Grant Co AP, US | daily low min (Tie) | 1.7 C (35.1 F) | tie | 15 years | 2 of 100 (Routine) |
| 4 May 2026 | Moses Lake Grant Co AP, US | daily high max | 31.7 C (89.1 F) | 0.6 C (1.1 F) | 8 years | 10 of 100 (Routine) |
| 2 May 2026 | Moses Lake Grant Co AP, US | daily high max (Tie) | 30.0 C (86.0 F) | tie | 12 years | 2 of 100 (Routine) |
| 25 April 2026 | Moses Lake Grant Co AP, US | daily low min | -2.2 C (28.0 F) | 1.6 C (2.9 F) | 71 years | 32 of 100 (Routine) |
| 22 April 2026 | Moses Lake Grant Co AP, US | daily rain | 20.8 mm (0.8 in) | 15.5 mm (0.6 in) | 12 years | 20 of 100 (Routine) |
| 6 April 2026 | Moses Lake Grant Co AP, US | daily high max | 25.0 C (77.0 F) | 1.7 C (3.1 F) | 19 years | 15 of 100 (Routine) |
| 31 March 2026 | Moses Lake Grant Co AP, US | daily low min | -5.0 C (23.0 F) | 0.1 C (0.2 F) | 17 years | 12 of 100 (Routine) |
| 20 March 2026 | Moses Lake Grant Co AP, US | daily high min | 9.4 C (48.9 F) | 3.8 C (6.8 F) | 76 years | 40 of 100 (Notable) |
| 19 March 2026 | Moses Lake Grant Co AP, US | daily high min | 11.1 C (52.0 F) | 5.0 C (9.0 F) | 4 years | 22 of 100 (Routine) |
| 19 March 2026 | Moses Lake Grant Co AP, US | monthly high max (Tie) | 23.9 C (75.0 F) | tie | 65 years | 9 of 100 (Routine) |
| 18 March 2026 | Moses Lake Grant Co AP, US | daily high min | 10.0 C (50.0 F) | 6.1 C (11.0 F) | 24 years | 31 of 100 (Routine) |
| 17 March 2026 | Moses Lake Grant Co AP, US | daily high min | 8.9 C (48.0 F) | 2.8 C (5.0 F) | 21 years | 21 of 100 (Routine) |
| 13 March 2026 | Moses Lake Grant Co AP, US | daily rain | 8.4 mm (0.33 in) | 2.8 mm (0.11 in) | 64 years | 20 of 100 (Routine) |
Climate Trend
44 complete years, 1950 to 2025| Year | Annual mean temperature | Difference from the station mean |
|---|---|---|
| 1950 | 9.3 C | -1.38 C |
| 1951 | 9.9 C | -0.76 C |
| 1952 | 10.4 C | -0.24 C |
| 1953 | 11.8 C | +1.13 C |
| 1954 | 10.2 C | -0.50 C |
| 1955 | 9.1 C | -1.60 C |
| 1956 | 10.6 C | -0.03 C |
| 1957 | 10.2 C | -0.43 C |
| 1958 | 12.4 C | +1.79 C |
| 1959 | 10.3 C | -0.39 C |
| 1960 | 10.4 C | -0.25 C |
| 1961 | 10.8 C | +0.14 C |
| 1962 | 10.4 C | -0.29 C |
| 1963 | 10.2 C | -0.41 C |
| 1964 | 9.6 C | -1.05 C |
| 1965 | 10.6 C | -0.07 C |
| 1998 | 11.7 C | +1.03 C |
| 1999 | 11.0 C | +0.30 C |
| 2000 | 9.7 C | -0.92 C |
| 2001 | 10.5 C | -0.19 C |
| 2002 | 10.5 C | -0.13 C |
| 2003 | 11.2 C | +0.52 C |
| 2004 | 11.0 C | +0.34 C |
| 2005 | 10.2 C | -0.42 C |
| 2006 | 10.6 C | -0.06 C |
| 2007 | 10.2 C | -0.50 C |
| 2008 | 9.4 C | -1.23 C |
| 2009 | 9.9 C | -0.80 C |
| 2010 | 10.5 C | -0.19 C |
| 2011 | 9.5 C | -1.12 C |
| 2012 | 10.9 C | +0.22 C |
| 2013 | 10.8 C | +0.12 C |
| 2014 | 11.6 C | +0.95 C |
| 2015 | 12.2 C | +1.56 C |
| 2016 | 11.4 C | +0.74 C |
| 2017 | 9.9 C | -0.74 C |
| 2018 | 11.2 C | +0.55 C |
| 2019 | 10.6 C | -0.06 C |
| 2020 | 12.2 C | +1.54 C |
| 2021 | 12.0 C | +1.35 C |
| 2022 | 9.9 C | -0.75 C |
| 2023 | 11.2 C | +0.50 C |
| 2024 | 11.4 C | +0.73 C |
| 2025 | 11.8 C | +1.16 C |
The annual mean temperature here has risen by 0.10 C (0.01 to 0.19) per decade over 1950 to 2025. In Fahrenheit: 0.17 F (0.01 to 0.33) per decade. The slope is a straight line fitted to 44 complete years; the brackets give its 95 percent interval.
| Measure | Per decade (C) | Per decade (F) | Period | Complete years | Reading |
|---|---|---|---|---|---|
| Annual mean temperature | 0.10 C (0.01 to 0.19) per decade | 0.17 F (0.01 to 0.33) per decade | 1950 to 2025 | 44 | Rise |
| Mean daily maximum | 0.3 C (0.2 to 0.4) per decade | 0.5 F (0.3 to 0.6) per decade | 1950 to 2025 | 44 | Rise |
| Mean daily minimum | -0.07 C (-0.16 to 0.02) per decade | -0.13 F (-0.29 to 0.03) per decade | 1950 to 2025 | 44 | 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
1949 to 2026| Measure | Record | Year of the record | Median year | Years with a value |
|---|---|---|---|---|
| Hottest day (TXx) | 45.6 C (114.1 F) | 2021 | 39.4 C (102.9 F) | 48 |
| Coldest night (TNn) | -30.0 C (-22.0 F) | 1950 | -18.0 C (-0.4 F) | 48 |
| Wettest day (Rx1day) | 63.5 mm (2.5 in) | 1961 | 14.7 mm (0.6 in) | 47 |
| Wettest five days (Rx5day) | 76.2 mm (3.0 in) | 1961 | 23.1 mm (0.9 in) | 47 |
| Longest dry spell (CDD) | 135 days | 1952 | 54 days | 47 |
Hottest day (TXx)
| Year | Hottest day (TXx) |
|---|---|
| 1949 | 38.9 C (102.0 F) |
| 1950 | 37.8 C (100.0 F) |
| 1951 | 37.8 C (100.0 F) |
| 1952 | 39.4 C (102.9 F) |
| 1953 | 37.2 C (99.0 F) |
| 1954 | 35.6 C (96.1 F) |
| 1955 | 38.3 C (100.9 F) |
| 1956 | 38.9 C (102.0 F) |
| 1957 | 36.1 C (97.0 F) |
| 1958 | 38.9 C (102.0 F) |
| 1959 | 38.9 C (102.0 F) |
| 1960 | 40.6 C (105.1 F) |
| 1961 | 44.4 C (111.9 F) |
| 1962 | 38.3 C (100.9 F) |
| 1963 | 37.2 C (99.0 F) |
| 1964 | 38.3 C (100.9 F) |
| 1965 | 40.0 C (104.0 F) |
| 1966 | 23.9 C (75.0 F) |
| 1997 | 38.9 C (102.0 F) |
| 1998 | 41.7 C (107.1 F) |
| 1999 | 38.9 C (102.0 F) |
| 2000 | 40.0 C (104.0 F) |
| 2001 | 39.4 C (102.9 F) |
| 2002 | 42.2 C (108.0 F) |
| 2003 | 39.4 C (102.9 F) |
| 2004 | 40.0 C (104.0 F) |
| 2005 | 37.8 C (100.0 F) |
| 2006 | 41.7 C (107.1 F) |
| 2007 | 40.6 C (105.1 F) |
| 2008 | 40.6 C (105.1 F) |
| 2009 | 41.1 C (106.0 F) |
| 2010 | 37.2 C (99.0 F) |
| 2011 | 37.8 C (100.0 F) |
| 2012 | 40.6 C (105.1 F) |
| 2013 | 41.7 C (107.1 F) |
| 2014 | 41.1 C (106.0 F) |
| 2015 | 44.4 C (111.9 F) |
| 2016 | 38.9 C (102.0 F) |
| 2017 | 39.4 C (102.9 F) |
| 2018 | 41.1 C (106.0 F) |
| 2019 | 40.0 C (104.0 F) |
| 2020 | 42.8 C (109.0 F) |
| 2021 | 45.6 C (114.1 F) |
| 2022 | 41.7 C (107.1 F) |
| 2023 | 40.0 C (104.0 F) |
| 2024 | 41.7 C (107.1 F) |
| 2025 | 38.9 C (102.0 F) |
| 2026 | 40.0 C (104.0 F) |
Coldest night (TNn)
| Year | Coldest night (TNn) |
|---|---|
| 1949 | -15.6 C (3.9 F) |
| 1950 | -30.0 C (-22.0 F) |
| 1951 | -20.6 C (-5.1 F) |
| 1952 | -23.3 C (-9.9 F) |
| 1953 | -7.2 C (19.0 F) |
| 1954 | -22.8 C (-9.0 F) |
| 1955 | -18.9 C (-2.0 F) |
| 1956 | -22.2 C (-8.0 F) |
| 1957 | -28.9 C (-20.0 F) |
| 1958 | -11.7 C (10.9 F) |
| 1959 | -17.8 C (0.0 F) |
| 1960 | -18.3 C (-0.9 F) |
| 1961 | -16.7 C (1.9 F) |
| 1962 | -18.9 C (-2.0 F) |
| 1963 | -18.9 C (-2.0 F) |
| 1964 | -25.0 C (-13.0 F) |
| 1965 | -16.1 C (3.0 F) |
| 1966 | -17.2 C (1.0 F) |
| 1997 | -10.0 C (14.0 F) |
| 1998 | -18.9 C (-2.0 F) |
| 1999 | -6.1 C (21.0 F) |
| 2000 | -13.3 C (8.1 F) |
| 2001 | -10.6 C (12.9 F) |
| 2002 | -15.0 C (5.0 F) |
| 2003 | -17.2 C (1.0 F) |
| 2004 | -27.2 C (-17.0 F) |
| 2005 | -17.8 C (0.0 F) |
| 2006 | -18.2 C (-0.8 F) |
| 2007 | -16.6 C (2.1 F) |
| 2008 | -19.9 C (-3.8 F) |
| 2009 | -21.0 C (-5.8 F) |
| 2010 | -28.2 C (-18.8 F) |
| 2011 | -16.6 C (2.1 F) |
| 2012 | -15.5 C (4.1 F) |
| 2013 | -20.5 C (-4.9 F) |
| 2014 | -18.8 C (-1.8 F) |
| 2015 | -16.6 C (2.1 F) |
| 2016 | -22.1 C (-7.8 F) |
| 2017 | -23.2 C (-9.8 F) |
| 2018 | -12.1 C (10.2 F) |
| 2019 | -17.1 C (1.2 F) |
| 2020 | -13.8 C (7.2 F) |
| 2021 | -24.3 C (-11.7 F) |
| 2022 | -24.9 C (-12.8 F) |
| 2023 | -15.5 C (4.1 F) |
| 2024 | -20.5 C (-4.9 F) |
| 2025 | -17.1 C (1.2 F) |
| 2026 | -10.0 C (14.0 F) |
Wettest day (Rx1day)
| Year | Wettest day (Rx1day) |
|---|---|
| 1949 | 20.8 mm (0.8 in) |
| 1950 | 10.4 mm (0.4 in) |
| 1951 | 35.6 mm (1.4 in) |
| 1952 | 22.6 mm (0.9 in) |
| 1953 | 14.0 mm (0.6 in) |
| 1954 | 13.0 mm (0.5 in) |
| 1955 | 16.8 mm (0.7 in) |
| 1956 | 10.4 mm (0.4 in) |
| 1957 | 11.4 mm (0.4 in) |
| 1958 | 14.2 mm (0.6 in) |
| 1959 | 17.3 mm (0.7 in) |
| 1960 | 19.1 mm (0.8 in) |
| 1961 | 63.5 mm (2.5 in) |
| 1962 | 14.7 mm (0.6 in) |
| 1963 | 26.2 mm (1.0 in) |
| 1964 | 10.7 mm (0.4 in) |
| 1965 | 23.4 mm (0.9 in) |
| 1966 | 5.1 mm (0.20 in) |
| 1997 | n/a |
| 1998 | 16.8 mm (0.7 in) |
| 1999 | 9.9 mm (0.39 in) |
| 2000 | 27.9 mm (1.1 in) |
| 2001 | 11.7 mm (0.5 in) |
| 2002 | 14.0 mm (0.6 in) |
| 2003 | 15.0 mm (0.6 in) |
| 2004 | 16.5 mm (0.6 in) |
| 2005 | 21.6 mm (0.9 in) |
| 2006 | 19.3 mm (0.8 in) |
| 2007 | 10.9 mm (0.4 in) |
| 2008 | 9.7 mm (0.38 in) |
| 2009 | 11.4 mm (0.4 in) |
| 2010 | 13.7 mm (0.5 in) |
| 2011 | 13.2 mm (0.5 in) |
| 2012 | 20.3 mm (0.8 in) |
| 2013 | 16.8 mm (0.7 in) |
| 2014 | 9.7 mm (0.38 in) |
| 2015 | 15.2 mm (0.6 in) |
| 2016 | 13.0 mm (0.5 in) |
| 2017 | 14.0 mm (0.6 in) |
| 2018 | 17.8 mm (0.7 in) |
| 2019 | 12.2 mm (0.5 in) |
| 2020 | 19.3 mm (0.8 in) |
| 2021 | 13.2 mm (0.5 in) |
| 2022 | 25.1 mm (1.0 in) |
| 2023 | 18.3 mm (0.7 in) |
| 2024 | 14.2 mm (0.6 in) |
| 2025 | 11.4 mm (0.4 in) |
| 2026 | 20.8 mm (0.8 in) |
Wettest five days (Rx5day)
| Year | Wettest five days (Rx5day) |
|---|---|
| 1949 | 20.8 mm (0.8 in) |
| 1950 | 23.3 mm (0.9 in) |
| 1951 | 50.9 mm (2.0 in) |
| 1952 | 30.0 mm (1.2 in) |
| 1953 | 29.0 mm (1.1 in) |
| 1954 | 14.0 mm (0.6 in) |
| 1955 | 21.4 mm (0.8 in) |
| 1956 | 18.1 mm (0.7 in) |
| 1957 | 23.1 mm (0.9 in) |
| 1958 | 22.6 mm (0.9 in) |
| 1959 | 33.6 mm (1.3 in) |
| 1960 | 34.3 mm (1.4 in) |
| 1961 | 76.2 mm (3.0 in) |
| 1962 | 17.8 mm (0.7 in) |
| 1963 | 42.0 mm (1.7 in) |
| 1964 | 26.3 mm (1.0 in) |
| 1965 | 25.4 mm (1.0 in) |
| 1966 | 8.3 mm (0.33 in) |
| 1997 | n/a |
| 1998 | 19.4 mm (0.8 in) |
| 1999 | 13.0 mm (0.5 in) |
| 2000 | 29.0 mm (1.1 in) |
| 2001 | 18.6 mm (0.7 in) |
| 2002 | 30.8 mm (1.2 in) |
| 2003 | 30.8 mm (1.2 in) |
| 2004 | 18.6 mm (0.7 in) |
| 2005 | 29.2 mm (1.1 in) |
| 2006 | 32.8 mm (1.3 in) |
| 2007 | 15.5 mm (0.6 in) |
| 2008 | 11.8 mm (0.5 in) |
| 2009 | 15.2 mm (0.6 in) |
| 2010 | 19.6 mm (0.8 in) |
| 2011 | 18.3 mm (0.7 in) |
| 2012 | 24.1 mm (0.9 in) |
| 2013 | 32.0 mm (1.3 in) |
| 2014 | 16.0 mm (0.6 in) |
| 2015 | 26.5 mm (1.0 in) |
| 2016 | 29.0 mm (1.1 in) |
| 2017 | 18.9 mm (0.7 in) |
| 2018 | 17.8 mm (0.7 in) |
| 2019 | 16.5 mm (0.6 in) |
| 2020 | 36.8 mm (1.4 in) |
| 2021 | 16.5 mm (0.6 in) |
| 2022 | 39.4 mm (1.6 in) |
| 2023 | 27.2 mm (1.1 in) |
| 2024 | 33.8 mm (1.3 in) |
| 2025 | 19.1 mm (0.8 in) |
| 2026 | 20.8 mm (0.8 in) |
Longest dry spell (CDD)
| Year | Longest dry spell (CDD) |
|---|---|
| 1949 | 89 days |
| 1950 | 76 days |
| 1951 | 49 days |
| 1952 | 135 days |
| 1953 | 40 days |
| 1954 | 41 days |
| 1955 | 48 days |
| 1956 | 51 days |
| 1957 | 103 days |
| 1958 | 47 days |
| 1959 | 84 days |
| 1960 | 49 days |
| 1961 | 71 days |
| 1962 | 46 days |
| 1963 | 120 days |
| 1964 | 45 days |
| 1965 | 65 days |
| 1966 | 24 days |
| 1997 | n/a |
| 1998 | 55 days |
| 1999 | 55 days |
| 2000 | 39 days |
| 2001 | 59 days |
| 2002 | 96 days |
| 2003 | 77 days |
| 2004 | 38 days |
| 2005 | 60 days |
| 2006 | 43 days |
| 2007 | 39 days |
| 2008 | 46 days |
| 2009 | 37 days |
| 2010 | 41 days |
| 2011 | 54 days |
| 2012 | 83 days |
| 2013 | 54 days |
| 2014 | 39 days |
| 2015 | 95 days |
| 2016 | 40 days |
| 2017 | 94 days |
| 2018 | 110 days |
| 2019 | 32 days |
| 2020 | 86 days |
| 2021 | 67 days |
| 2022 | 54 days |
| 2023 | 43 days |
| 2024 | 125 days |
| 2025 | 81 days |
| 2026 | 43 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
44 years with a frostAcross 44 years with a frost, the median last spring frost at Moses Lake Grant Co AP falls on 26 April and the median first autumn frost on 10 October, which leaves a median of 170 days between them.
Fitted over all years, the growing season changes by -1.7 days per decade at this station.
| Measure | Median, all years | Earliest period | Recent period (1964 to 2025) | Recent against earliest | Fitted trend |
|---|---|---|---|---|---|
| Last spring frost | 26 April | n/a | 1 May | n/a | +2.0 days per decade |
| First autumn frost | 10 October | n/a | 9 October | n/a | +0.4 days per decade |
| Growing days | 170 days | n/a | 165 days | n/a | -1.7 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
43 years, 1950 to 2025A day with at least 14.6 mm (0.6 in) of rain is expected about once in 2 years. A day with at least 55.2 mm (2.2 in) of rain is expected about once in 100 years.
| Expected about once in | A day with at least | Note |
|---|---|---|
| 2 years | 14.6 mm (0.6 in) | |
| 5 years | 20.3 mm (0.8 in) | |
| 10 years | 25.6 mm (1.0 in) | |
| 25 years | 34.7 mm (1.4 in) | |
| 50 years | 43.7 mm (1.7 in) | Longer than the 43 years of record |
| 100 years | 55.2 mm (2.2 in) | Longer than the 43 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, 43 years of values from 1950 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: 63.5 mm (2.5 in) in 1961; 35.6 mm (1.4 in) in 1951; 27.9 mm (1.1 in) in 2000.
Station Changes
1 suspectedOne change was suspected in the annual mean temperature of Moses Lake Grant Co AP, at 1961. Each is measured against neighbouring stations.
- Relative to 5 neighbouring stations, the station's annual mean temperature from 1961 ran 0.3 C (0.6 F) lower than in the years before (possible change).
| Year | Shift (C) | Shift (F) | Strength | Neighbours |
|---|---|---|---|---|
| 1961 | -0.3 | -0.6 | possible | 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.
Download the Data
Source: NOAA National Centers for Environmental Information, Global Historical Climatology Network Daily (GHCN-Daily). Records are computed by World Extreme Weather Monitor and are not official NOAA products. (US Government open data (NOAA NCEI)) Data as of 2026-10-15 (15 October 2026). Records are computed by this site and are not official.
Data as of . Last revised (2026-10-15).