Ephrata AP Weather Records (USW00024141)
Record envelope, standing records and threshold days for Ephrata AP (USW00024141), Washington, United States, with 78 years of record.
Key Facts for Ephrata AP
- Ephrata AP (USW00024141) is a weather station in Washington, United States at 47.31 latitude and -119.52 longitude, 382 m (1,254 ft) above sea level.
- The station reports from 1949 to 2026, 78 years of record.
- 1,464 records set at Ephrata AP still stand.
- Records are tracked for tmax, tmin, prcp, snow, snwd: an element needs 30 years of data to be eligible.
- Ephrata AP set a daily record low maximum temperature of 14.4 C (57.9 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, 47.31 latitude, -119.52 longitude.
- Elevation: 382 m (1,254 ft).
- Period of record: 1949 to 2026, 78 years.
- Eligible elements: tmax, tmin, prcp, snow, snwd.
Daily Record Envelope and 2026
8 days at or beyond a record| Month | Highest record high | Lowest record low | 2026 highest maximum | 2026 lowest minimum |
|---|---|---|---|---|
| Jan | 16.1 C (61.0 F) | -30.0 C (-22.0 F) | 10.6 C (51.1 F) | -9.4 C (15.1 F) |
| Feb | 18.3 C (64.9 F) | -31.1 C (-24.0 F) | 15.0 C (59.0 F) | -7.8 C (18.0 F) |
| Mar | 23.9 C (75.0 F) | -16.7 C (1.9 F) | 23.9 C (75.0 F) | -7.2 C (19.0 F) |
| Apr | 34.4 C (93.9 F) | -7.1 C (19.2 F) | 27.2 C (81.0 F) | -2.2 C (28.0 F) |
| May | 38.3 C (100.9 F) | -2.2 C (28.0 F) | 35.0 C (95.0 F) | 2.8 C (37.0 F) |
| Jun | 46.7 C (116.1 F) | 1.1 C (34.0 F) | 35.6 C (96.1 F) | 5.0 C (41.0 F) |
| Jul | 42.8 C (109.0 F) | 4.4 C (39.9 F) | 38.9 C (102.0 F) | 10.6 C (51.1 F) |
| Aug | 46.1 C (115.0 F) | 2.2 C (36.0 F) | 38.9 C (102.0 F) | 5.0 C (41.0 F) |
| Sep | 41.1 C (106.0 F) | -2.2 C (28.0 F) | 29.4 C (84.9 F) | 2.2 C (36.0 F) |
| Oct | 31.1 C (88.0 F) | -13.3 C (8.1 F) | 26.7 C (80.1 F) | 1.1 C (34.0 F) |
| Nov | 22.2 C (72.0 F) | -26.1 C (-15.0 F) | n/a | n/a |
| Dec | 20.6 C (69.1 F) | -29.4 C (-20.9 F) | n/a | n/a |
Which Years Hold Standing Records
1,464 standing records| Year set | Standing records |
|---|---|
| 1949 | 37 |
| 1950 | 29 |
| 1951 | 18 |
| 1952 | 15 |
| 1953 | 20 |
| 1954 | 14 |
| 1955 | 42 |
| 1956 | 27 |
| 1957 | 18 |
| 1958 | 28 |
| 1959 | 14 |
| 1960 | 32 |
| 1961 | 18 |
| 1962 | 18 |
| 1963 | 21 |
| 1964 | 19 |
| 1965 | 14 |
| 1966 | 15 |
| 1967 | 21 |
| 1968 | 37 |
| 1969 | 18 |
| 1970 | 17 |
| 1971 | 22 |
| 1972 | 34 |
| 1973 | 21 |
| 1974 | 24 |
| 1975 | 18 |
| 1976 | 12 |
| 1977 | 21 |
| 1978 | 12 |
| 1979 | 8 |
| 1980 | 16 |
| 1981 | 24 |
| 1982 | 14 |
| 1983 | 19 |
| 1984 | 17 |
| 1985 | 49 |
| 1986 | 25 |
| 1987 | 26 |
| 1988 | 23 |
| 1989 | 15 |
| 1990 | 26 |
| 1991 | 9 |
| 1992 | 35 |
| 1993 | 24 |
| 1994 | 19 |
| 1995 | 12 |
| 1996 | 17 |
| 1997 | 8 |
| 1998 | 18 |
| 1999 | 20 |
| 2000 | 12 |
| 2001 | 9 |
| 2002 | 22 |
| 2003 | 21 |
| 2004 | 3 |
| 2005 | 7 |
| 2006 | 13 |
| 2007 | 9 |
| 2008 | 13 |
| 2009 | 11 |
| 2010 | 11 |
| 2011 | 17 |
| 2012 | 11 |
| 2013 | 13 |
| 2014 | 22 |
| 2015 | 20 |
| 2016 | 17 |
| 2017 | 4 |
| 2018 | 8 |
| 2019 | 21 |
| 2020 | 18 |
| 2021 | 27 |
| 2022 | 23 |
| 2023 | 11 |
| 2024 | 11 |
| 2025 | 22 |
| 2026 | 8 |
All-Time Record Progression
5 new records| Date | Kind | Detail |
|---|---|---|
| 1992-07-23 | Record daily precipitation | Record daily precipitation 39.6 mm (1.6 in) |
| 1993-01-09 | Record snow depth | Record snow depth 61.0 cm (24.0 in) |
| 1993-01-20 | Record snow depth | Record snow depth 68.6 cm (27.0 in) |
| 1998-07-31 | Record daily precipitation | Record daily precipitation 44.2 mm (1.7 in) |
| 2021-06-29 | Record high maximum temperature | Record high maximum temperature 46.7 C (116.1 F) |
Wettest Day of Each Month
Jul: 44.2 mm (1.7 in)| Month | Record daily precipitation (mm) | Date |
|---|---|---|
| Jan | 17.5 mm (0.7 in) | 11 January 1959 |
| Feb | 22.9 mm (0.9 in) | 18 February 1989 |
| Mar | 21.6 mm (0.9 in) | 24 March 1991 |
| Apr | 23.6 mm (0.9 in) | 10 April 2023 |
| May | 28.2 mm (1.1 in) | 18 May 2020 |
| Jun | 24.6 mm (1.0 in) | 4 June 1951 |
| Jul | 44.2 mm (1.7 in) | 31 July 1998 |
| Aug | 23.6 mm (0.9 in) | 21 August 1990 |
| Sep | 17.0 mm (0.7 in) | 4 September 1960 |
| Oct | 23.4 mm (0.9 in) | 17 October 2004 |
| Nov | 20.8 mm (0.8 in) | 5 November 1998 |
| Dec | 19.3 mm (0.8 in) | 28 December 1992 |
Period of Record Coverage
1949 to 2026| Year | Days with data | Share of year | Complete |
|---|---|---|---|
| 1949 | 364 | 100% | Yes |
| 1950 | 363 | 99% | Yes |
| 1951 | 365 | 100% | Yes |
| 1952 | 364 | 99% | Yes |
| 1953 | 365 | 100% | Yes |
| 1954 | 365 | 100% | Yes |
| 1955 | 364 | 100% | Yes |
| 1956 | 366 | 100% | Yes |
| 1957 | 365 | 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 | 365 | 100% | Yes |
| 1967 | 365 | 100% | Yes |
| 1968 | 366 | 100% | Yes |
| 1969 | 365 | 100% | Yes |
| 1970 | 365 | 100% | Yes |
| 1971 | 365 | 100% | Yes |
| 1972 | 366 | 100% | Yes |
| 1973 | 365 | 100% | Yes |
| 1974 | 365 | 100% | Yes |
| 1975 | 365 | 100% | Yes |
| 1976 | 366 | 100% | Yes |
| 1977 | 365 | 100% | Yes |
| 1978 | 365 | 100% | Yes |
| 1979 | 365 | 100% | Yes |
| 1980 | 366 | 100% | Yes |
| 1981 | 365 | 100% | Yes |
| 1982 | 361 | 99% | Yes |
| 1983 | 365 | 100% | Yes |
| 1984 | 366 | 100% | Yes |
| 1985 | 364 | 100% | Yes |
| 1986 | 365 | 100% | Yes |
| 1987 | 364 | 100% | Yes |
| 1988 | 366 | 100% | Yes |
| 1989 | 365 | 100% | Yes |
| 1990 | 365 | 100% | Yes |
| 1991 | 365 | 100% | Yes |
| 1992 | 366 | 100% | Yes |
| 1993 | 364 | 100% | Yes |
| 1994 | 365 | 100% | Yes |
| 1995 | 365 | 100% | Yes |
| 1996 | 366 | 100% | Yes |
| 1997 | 364 | 100% | Yes |
| 1998 | 365 | 100% | Yes |
| 1999 | 365 | 100% | Yes |
| 2000 | 366 | 100% | Yes |
| 2001 | 334 | 92% | Yes |
| 2002 | 356 | 98% | Yes |
| 2003 | 365 | 100% | Yes |
| 2004 | 366 | 100% | Yes |
| 2005 | 365 | 100% | Yes |
| 2006 | 365 | 100% | Yes |
| 2007 | 365 | 100% | Yes |
| 2008 | 366 | 100% | Yes |
| 2009 | 365 | 100% | Yes |
| 2010 | 365 | 100% | Yes |
| 2011 | 365 | 100% | Yes |
| 2012 | 366 | 100% | Yes |
| 2013 | 364 | 100% | Yes |
| 2014 | 365 | 100% | Yes |
| 2015 | 365 | 100% | Yes |
| 2016 | 366 | 100% | Yes |
| 2017 | 365 | 100% | Yes |
| 2018 | 365 | 100% | Yes |
| 2019 | 363 | 99% | Yes |
| 2020 | 366 | 100% | Yes |
| 2021 | 365 | 100% | Yes |
| 2022 | 364 | 100% | Yes |
| 2023 | 365 | 100% | Yes |
| 2024 | 366 | 100% | Yes |
| 2025 | 364 | 100% | Yes |
| 2026 | 285 | 78% | No |
Latest Records
20| Date | Station | Record | Value | Beat old record by | Old record stood | Significance |
|---|---|---|---|---|---|---|
| 13 September 2026 | Ephrata AP, US | daily low max (Provisional) | 14.4 C (57.9 F) | 1.7 C (3.1 F) | 56 years | 26 of 100 (Routine) |
| 13 September 2026 | Ephrata AP, US | daily rain (Provisional) | 11.7 mm (0.5 in) | 1.0 mm (0.04 in) | 45 years | 20 of 100 (Routine) |
| 30 August 2026 | Ephrata AP, US | daily low min (Provisional) | 5.0 C (41.0 F) | 3.3 C (5.9 F) | 67 years | 35 of 100 (Notable) |
| 21 August 2026 | Ephrata AP, US | daily high max (Tie, Provisional) | 38.9 C (102.0 F) | tie | 20 years | 3 of 100 (Routine) |
| 27 July 2026 | Ephrata AP, US | daily low min (Tie) | 11.1 C (52.0 F) | tie | 71 years | 7 of 100 (Routine) |
| 26 July 2026 | Ephrata AP, US | daily low min (Tie) | 11.1 C (52.0 F) | tie | 15 years | 2 of 100 (Routine) |
| 6 June 2026 | Ephrata AP, US | daily low min | 5.0 C (41.0 F) | 0.6 C (1.1 F) | 44 years | 21 of 100 (Routine) |
| 28 May 2026 | Ephrata AP, US | daily high max (Tie) | 35.0 C (95.0 F) | tie | 20 years | 3 of 100 (Routine) |
| 4 May 2026 | Ephrata AP, US | daily high min | 15.0 C (59.0 F) | 0.6 C (1.1 F) | 55 years | 24 of 100 (Routine) |
| 22 April 2026 | Ephrata AP, US | daily rain | 21.6 mm (0.9 in) | 13.5 mm (0.5 in) | 12 years | 20 of 100 (Routine) |
| 11 April 2026 | Ephrata AP, US | daily high min | 9.4 C (48.9 F) | 0.5 C (0.9 F) | 76 years | 31 of 100 (Routine) |
| 20 March 2026 | Ephrata AP, US | monthly high min | 10.6 C (51.1 F) | 0.6 C (1.1 F) | 0 years | 18 of 100 (Routine) |
| 19 March 2026 | Ephrata AP, US | daily high min | 7.8 C (46.0 F) | 0.6 C (1.1 F) | 28 years | 16 of 100 (Routine) |
| 19 March 2026 | Ephrata AP, US | monthly high max (Tie) | 23.9 C (75.0 F) | tie | 65 years | 9 of 100 (Routine) |
| 18 March 2026 | Ephrata AP, US | daily high min | 7.8 C (46.0 F) | 0.6 C (1.1 F) | 31 years | 17 of 100 (Routine) |
| 13 March 2026 | Ephrata AP, US | daily low max | 2.8 C (37.0 F) | 0.5 C (0.9 F) | 76 years | 30 of 100 (Routine) |
| 7 March 2026 | Ephrata AP, US | daily high max (Tie) | 21.7 C (71.1 F) | tie | 20 years | 3 of 100 (Routine) |
| 16 February 2026 | Ephrata AP, US | daily rain | 7.9 mm (0.31 in) | 0.5 mm (0.02 in) | 67 years | 20 of 100 (Routine) |
| 3 February 2026 | Ephrata AP, US | daily high min (Tie) | 3.9 C (39.0 F) | tie | 28 years | 3 of 100 (Routine) |
| 15 December 2025 | Ephrata AP, US | daily high max | 18.3 C (64.9 F) | 3.3 C (5.9 F) | 66 years | 32 of 100 (Routine) |
Climate Trend
76 complete years, 1949 to 2025| Year | Annual mean temperature | Difference from the station mean |
|---|---|---|
| 1949 | 9.9 C | -0.93 C |
| 1950 | 9.4 C | -1.42 C |
| 1951 | 10.2 C | -0.57 C |
| 1952 | 10.9 C | +0.14 C |
| 1953 | 11.7 C | +0.88 C |
| 1954 | 10.1 C | -0.70 C |
| 1955 | 8.8 C | -1.99 C |
| 1956 | 10.2 C | -0.62 C |
| 1957 | 10.2 C | -0.56 C |
| 1958 | 12.4 C | +1.64 C |
| 1959 | 10.3 C | -0.44 C |
| 1960 | 10.3 C | -0.46 C |
| 1961 | 11.2 C | +0.39 C |
| 1962 | 10.7 C | -0.08 C |
| 1963 | 11.0 C | +0.23 C |
| 1964 | 9.6 C | -1.17 C |
| 1965 | 10.9 C | +0.13 C |
| 1966 | 10.9 C | +0.13 C |
| 1967 | 11.8 C | +0.99 C |
| 1968 | 11.2 C | +0.40 C |
| 1969 | 10.1 C | -0.71 C |
| 1970 | 10.6 C | -0.14 C |
| 1971 | 10.3 C | -0.51 C |
| 1972 | 10.5 C | -0.28 C |
| 1973 | 11.4 C | +0.63 C |
| 1974 | 11.5 C | +0.72 C |
| 1975 | 10.9 C | +0.08 C |
| 1976 | 10.5 C | -0.32 C |
| 1977 | 10.7 C | -0.09 C |
| 1978 | 10.2 C | -0.54 C |
| 1979 | 10.7 C | -0.07 C |
| 1980 | 10.1 C | -0.66 C |
| 1981 | 11.2 C | +0.44 C |
| 1982 | 9.6 C | -1.16 C |
| 1983 | 10.2 C | -0.57 C |
| 1984 | 9.1 C | -1.72 C |
| 1985 | 8.1 C | -2.66 C |
| 1986 | 10.8 C | +0.06 C |
| 1987 | 12.2 C | +1.37 C |
| 1988 | 11.3 C | +0.51 C |
| 1989 | 10.7 C | -0.13 C |
| 1990 | 11.5 C | +0.76 C |
| 1991 | 11.2 C | +0.42 C |
| 1992 | 11.4 C | +0.59 C |
| 1993 | 9.3 C | -1.45 C |
| 1994 | 12.0 C | +1.21 C |
| 1995 | 11.5 C | +0.72 C |
| 1996 | 9.8 C | -0.99 C |
| 1997 | 10.9 C | +0.08 C |
| 1998 | 12.5 C | +1.71 C |
| 1999 | 11.9 C | +1.07 C |
| 2000 | 10.8 C | +0.06 C |
| 2002 | 10.8 C | 0.00 C |
| 2003 | 11.3 C | +0.49 C |
| 2004 | 11.3 C | +0.55 C |
| 2005 | 10.5 C | -0.27 C |
| 2006 | 10.8 C | +0.01 C |
| 2007 | 10.5 C | -0.31 C |
| 2008 | 9.8 C | -1.02 C |
| 2009 | 10.2 C | -0.55 C |
| 2010 | 10.9 C | +0.08 C |
| 2011 | 9.7 C | -1.08 C |
| 2012 | 10.9 C | +0.10 C |
| 2013 | 10.8 C | +0.04 C |
| 2014 | 11.9 C | +1.07 C |
| 2015 | 12.7 C | +1.94 C |
| 2016 | 11.5 C | +0.74 C |
| 2017 | 10.3 C | -0.45 C |
| 2018 | 11.8 C | +1.00 C |
| 2019 | 10.3 C | -0.49 C |
| 2020 | 11.3 C | +0.54 C |
| 2021 | 11.8 C | +1.01 C |
| 2022 | 10.2 C | -0.58 C |
| 2023 | 11.5 C | +0.74 C |
| 2024 | 11.6 C | +0.83 C |
| 2025 | 12.1 C | +1.34 C |
The annual mean temperature here has risen by 0.11 C (0.03 to 0.20) per decade over 1949 to 2025. In Fahrenheit: 0.20 F (0.05 to 0.36) per decade. The slope is a straight line fitted to 76 complete years; the brackets give its 95 percent interval.
| Measure | Per decade (C) | Per decade (F) | Period | Complete years | Reading |
|---|---|---|---|---|---|
| Annual mean temperature | 0.11 C (0.03 to 0.20) per decade | 0.20 F (0.05 to 0.36) per decade | 1949 to 2025 | 76 | Rise |
| Mean daily maximum | 0.2 C (0.1 to 0.3) per decade | 0.3 F (0.2 to 0.5) per decade | 1949 to 2025 | 76 | Rise |
| Mean daily minimum | 0.04 C (-0.04 to 0.12) per decade | 0.1 F (-0.1 to 0.2) per decade | 1949 to 2025 | 76 | 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) | 46.7 C (116.1 F) | 2021 | 40.0 C (104.0 F) | 78 |
| Coldest night (TNn) | -31.1 C (-24.0 F) | 1950 | -18.9 C (-2.0 F) | 78 |
| Wettest day (Rx1day) | 44.2 mm (1.7 in) | 1998 | 15.2 mm (0.6 in) | 78 |
| Wettest five days (Rx5day) | 46.3 mm (1.8 in) | 1993 | 25.0 mm (1.0 in) | 78 |
| Longest dry spell (CDD) | 146 days | 2024 | 67 days | 78 |
Hottest day (TXx)
| Year | Hottest day (TXx) |
|---|---|
| 1949 | 39.4 C (102.9 F) |
| 1950 | 38.9 C (102.0 F) |
| 1951 | 38.3 C (100.9 F) |
| 1952 | 39.4 C (102.9 F) |
| 1953 | 37.8 C (100.0 F) |
| 1954 | 35.6 C (96.1 F) |
| 1955 | 40.6 C (105.1 F) |
| 1956 | 41.1 C (106.0 F) |
| 1957 | 36.7 C (98.1 F) |
| 1958 | 38.9 C (102.0 F) |
| 1959 | 39.4 C (102.9 F) |
| 1960 | 42.8 C (109.0 F) |
| 1961 | 46.1 C (115.0 F) |
| 1962 | 40.0 C (104.0 F) |
| 1963 | 37.8 C (100.0 F) |
| 1964 | 40.0 C (104.0 F) |
| 1965 | 40.0 C (104.0 F) |
| 1966 | 40.0 C (104.0 F) |
| 1967 | 40.0 C (104.0 F) |
| 1968 | 41.7 C (107.1 F) |
| 1969 | 37.8 C (100.0 F) |
| 1970 | 40.0 C (104.0 F) |
| 1971 | 41.7 C (107.1 F) |
| 1972 | 40.6 C (105.1 F) |
| 1973 | 40.6 C (105.1 F) |
| 1974 | 38.3 C (100.9 F) |
| 1975 | 42.2 C (108.0 F) |
| 1976 | 36.7 C (98.1 F) |
| 1977 | 40.0 C (104.0 F) |
| 1978 | 38.9 C (102.0 F) |
| 1979 | 40.6 C (105.1 F) |
| 1980 | 38.9 C (102.0 F) |
| 1981 | 38.9 C (102.0 F) |
| 1982 | 38.9 C (102.0 F) |
| 1983 | 37.2 C (99.0 F) |
| 1984 | 40.6 C (105.1 F) |
| 1985 | 38.9 C (102.0 F) |
| 1986 | 38.3 C (100.9 F) |
| 1987 | 39.4 C (102.9 F) |
| 1988 | 41.1 C (106.0 F) |
| 1989 | 37.8 C (100.0 F) |
| 1990 | 41.7 C (107.1 F) |
| 1991 | 37.8 C (100.0 F) |
| 1992 | 40.0 C (104.0 F) |
| 1993 | 35.6 C (96.1 F) |
| 1994 | 41.1 C (106.0 F) |
| 1995 | 38.3 C (100.9 F) |
| 1996 | 41.1 C (106.0 F) |
| 1997 | 38.9 C (102.0 F) |
| 1998 | 42.2 C (108.0 F) |
| 1999 | 38.9 C (102.0 F) |
| 2000 | 40.0 C (104.0 F) |
| 2001 | 40.6 C (105.1 F) |
| 2002 | 41.7 C (107.1 F) |
| 2003 | 39.4 C (102.9 F) |
| 2004 | 39.4 C (102.9 F) |
| 2005 | 38.3 C (100.9 F) |
| 2006 | 41.7 C (107.1 F) |
| 2007 | 39.4 C (102.9 F) |
| 2008 | 41.1 C (106.0 F) |
| 2009 | 41.1 C (106.0 F) |
| 2010 | 36.7 C (98.1 F) |
| 2011 | 37.2 C (99.0 F) |
| 2012 | 40.6 C (105.1 F) |
| 2013 | 40.6 C (105.1 F) |
| 2014 | 41.1 C (106.0 F) |
| 2015 | 43.3 C (109.9 F) |
| 2016 | 38.3 C (100.9 F) |
| 2017 | 39.4 C (102.9 F) |
| 2018 | 41.1 C (106.0 F) |
| 2019 | 38.9 C (102.0 F) |
| 2020 | 41.7 C (107.1 F) |
| 2021 | 46.7 C (116.1 F) |
| 2022 | 42.2 C (108.0 F) |
| 2023 | 40.6 C (105.1 F) |
| 2024 | 41.7 C (107.1 F) |
| 2025 | 39.4 C (102.9 F) |
| 2026 | 38.9 C (102.0 F) |
Coldest night (TNn)
| Year | Coldest night (TNn) |
|---|---|
| 1949 | -26.1 C (-15.0 F) |
| 1950 | -31.1 C (-24.0 F) |
| 1951 | -17.2 C (1.0 F) |
| 1952 | -21.7 C (-7.1 F) |
| 1953 | -9.4 C (15.1 F) |
| 1954 | -19.4 C (-2.9 F) |
| 1955 | -19.4 C (-2.9 F) |
| 1956 | -22.2 C (-8.0 F) |
| 1957 | -28.9 C (-20.0 F) |
| 1958 | -10.6 C (12.9 F) |
| 1959 | -18.3 C (-0.9 F) |
| 1960 | -21.1 C (-6.0 F) |
| 1961 | -16.1 C (3.0 F) |
| 1962 | -20.0 C (-4.0 F) |
| 1963 | -18.9 C (-2.0 F) |
| 1964 | -23.9 C (-11.0 F) |
| 1965 | -16.7 C (1.9 F) |
| 1966 | -15.6 C (3.9 F) |
| 1967 | -13.3 C (8.1 F) |
| 1968 | -26.7 C (-16.1 F) |
| 1969 | -24.4 C (-11.9 F) |
| 1970 | -19.4 C (-2.9 F) |
| 1971 | -20.6 C (-5.1 F) |
| 1972 | -21.1 C (-6.0 F) |
| 1973 | -16.1 C (3.0 F) |
| 1974 | -24.4 C (-11.9 F) |
| 1975 | -18.3 C (-0.9 F) |
| 1976 | -13.3 C (8.1 F) |
| 1977 | -18.9 C (-2.0 F) |
| 1978 | -22.8 C (-9.0 F) |
| 1979 | -27.8 C (-18.0 F) |
| 1980 | -22.8 C (-9.0 F) |
| 1981 | -17.8 C (0.0 F) |
| 1982 | -26.1 C (-15.0 F) |
| 1983 | -29.4 C (-20.9 F) |
| 1984 | -22.8 C (-9.0 F) |
| 1985 | -28.3 C (-18.9 F) |
| 1986 | -18.9 C (-2.0 F) |
| 1987 | -17.8 C (0.0 F) |
| 1988 | -18.9 C (-2.0 F) |
| 1989 | -20.6 C (-5.1 F) |
| 1990 | -23.9 C (-11.0 F) |
| 1991 | -15.6 C (3.9 F) |
| 1992 | -17.2 C (1.0 F) |
| 1993 | -23.3 C (-9.9 F) |
| 1994 | -15.6 C (3.9 F) |
| 1995 | -12.8 C (9.0 F) |
| 1996 | -28.3 C (-18.9 F) |
| 1997 | -17.2 C (1.0 F) |
| 1998 | -19.4 C (-2.9 F) |
| 1999 | -7.2 C (19.0 F) |
| 2000 | -16.7 C (1.9 F) |
| 2001 | -10.6 C (12.9 F) |
| 2002 | -13.3 C (8.1 F) |
| 2003 | -13.3 C (8.1 F) |
| 2004 | -23.9 C (-11.0 F) |
| 2005 | -16.7 C (1.9 F) |
| 2006 | -16.7 C (1.9 F) |
| 2007 | -16.1 C (3.0 F) |
| 2008 | -20.6 C (-5.1 F) |
| 2009 | -20.0 C (-4.0 F) |
| 2010 | -25.6 C (-14.1 F) |
| 2011 | -17.2 C (1.0 F) |
| 2012 | -15.6 C (3.9 F) |
| 2013 | -18.8 C (-1.8 F) |
| 2014 | -17.1 C (1.2 F) |
| 2015 | -16.6 C (2.1 F) |
| 2016 | -18.8 C (-1.8 F) |
| 2017 | -22.1 C (-7.8 F) |
| 2018 | -13.2 C (8.2 F) |
| 2019 | -16.0 C (3.2 F) |
| 2020 | -13.8 C (7.2 F) |
| 2021 | -21.0 C (-5.8 F) |
| 2022 | -22.7 C (-8.9 F) |
| 2023 | -15.5 C (4.1 F) |
| 2024 | -21.0 C (-5.8 F) |
| 2025 | -16.6 C (2.1 F) |
| 2026 | -9.4 C (15.1 F) |
Wettest day (Rx1day)
| Year | Wettest day (Rx1day) |
|---|---|
| 1949 | 15.2 mm (0.6 in) |
| 1950 | 16.8 mm (0.7 in) |
| 1951 | 24.6 mm (1.0 in) |
| 1952 | 10.4 mm (0.4 in) |
| 1953 | 17.5 mm (0.7 in) |
| 1954 | 11.4 mm (0.4 in) |
| 1955 | 14.5 mm (0.6 in) |
| 1956 | 19.3 mm (0.8 in) |
| 1957 | 10.2 mm (0.4 in) |
| 1958 | 19.6 mm (0.8 in) |
| 1959 | 17.5 mm (0.7 in) |
| 1960 | 17.0 mm (0.7 in) |
| 1961 | 12.4 mm (0.5 in) |
| 1962 | 16.5 mm (0.6 in) |
| 1963 | 11.7 mm (0.5 in) |
| 1964 | 13.5 mm (0.5 in) |
| 1965 | 17.0 mm (0.7 in) |
| 1966 | 14.2 mm (0.6 in) |
| 1967 | 13.0 mm (0.5 in) |
| 1968 | 16.3 mm (0.6 in) |
| 1969 | 20.6 mm (0.8 in) |
| 1970 | 13.2 mm (0.5 in) |
| 1971 | 15.2 mm (0.6 in) |
| 1972 | 20.1 mm (0.8 in) |
| 1973 | 21.8 mm (0.9 in) |
| 1974 | 16.0 mm (0.6 in) |
| 1975 | 12.7 mm (0.5 in) |
| 1976 | 10.7 mm (0.4 in) |
| 1977 | 13.7 mm (0.5 in) |
| 1978 | 10.4 mm (0.4 in) |
| 1979 | 11.4 mm (0.4 in) |
| 1980 | 12.2 mm (0.5 in) |
| 1981 | 12.4 mm (0.5 in) |
| 1982 | 20.3 mm (0.8 in) |
| 1983 | 20.6 mm (0.8 in) |
| 1984 | 20.8 mm (0.8 in) |
| 1985 | 12.2 mm (0.5 in) |
| 1986 | 13.2 mm (0.5 in) |
| 1987 | 18.0 mm (0.7 in) |
| 1988 | 6.9 mm (0.27 in) |
| 1989 | 22.9 mm (0.9 in) |
| 1990 | 23.6 mm (0.9 in) |
| 1991 | 24.1 mm (0.9 in) |
| 1992 | 39.6 mm (1.6 in) |
| 1993 | 11.4 mm (0.4 in) |
| 1994 | 18.5 mm (0.7 in) |
| 1995 | 14.7 mm (0.6 in) |
| 1996 | 11.2 mm (0.4 in) |
| 1997 | 19.8 mm (0.8 in) |
| 1998 | 44.2 mm (1.7 in) |
| 1999 | 19.6 mm (0.8 in) |
| 2000 | 14.2 mm (0.6 in) |
| 2001 | 16.3 mm (0.6 in) |
| 2002 | 12.7 mm (0.5 in) |
| 2003 | 12.4 mm (0.5 in) |
| 2004 | 23.4 mm (0.9 in) |
| 2005 | 20.3 mm (0.8 in) |
| 2006 | 15.5 mm (0.6 in) |
| 2007 | 9.4 mm (0.37 in) |
| 2008 | 7.6 mm (0.30 in) |
| 2009 | 7.9 mm (0.31 in) |
| 2010 | 13.5 mm (0.5 in) |
| 2011 | 13.5 mm (0.5 in) |
| 2012 | 14.7 mm (0.6 in) |
| 2013 | 16.0 mm (0.6 in) |
| 2014 | 17.3 mm (0.7 in) |
| 2015 | 13.7 mm (0.5 in) |
| 2016 | 14.2 mm (0.6 in) |
| 2017 | 15.2 mm (0.6 in) |
| 2018 | 18.3 mm (0.7 in) |
| 2019 | 12.7 mm (0.5 in) |
| 2020 | 28.2 mm (1.1 in) |
| 2021 | 18.0 mm (0.7 in) |
| 2022 | 9.1 mm (0.36 in) |
| 2023 | 23.6 mm (0.9 in) |
| 2024 | 17.5 mm (0.7 in) |
| 2025 | 13.2 mm (0.5 in) |
| 2026 | 21.6 mm (0.9 in) |
Wettest five days (Rx5day)
| Year | Wettest five days (Rx5day) |
|---|---|
| 1949 | 23.3 mm (0.9 in) |
| 1950 | 27.7 mm (1.1 in) |
| 1951 | 39.0 mm (1.5 in) |
| 1952 | 19.3 mm (0.8 in) |
| 1953 | 29.5 mm (1.2 in) |
| 1954 | 18.3 mm (0.7 in) |
| 1955 | 21.9 mm (0.9 in) |
| 1956 | 28.7 mm (1.1 in) |
| 1957 | 20.1 mm (0.8 in) |
| 1958 | 25.5 mm (1.0 in) |
| 1959 | 20.8 mm (0.8 in) |
| 1960 | 24.0 mm (0.9 in) |
| 1961 | 26.1 mm (1.0 in) |
| 1962 | 21.6 mm (0.9 in) |
| 1963 | 22.1 mm (0.9 in) |
| 1964 | 36.1 mm (1.4 in) |
| 1965 | 33.0 mm (1.3 in) |
| 1966 | 27.4 mm (1.1 in) |
| 1967 | 24.4 mm (1.0 in) |
| 1968 | 30.5 mm (1.2 in) |
| 1969 | 20.6 mm (0.8 in) |
| 1970 | 31.4 mm (1.2 in) |
| 1971 | 31.3 mm (1.2 in) |
| 1972 | 37.6 mm (1.5 in) |
| 1973 | 32.5 mm (1.3 in) |
| 1974 | 23.0 mm (0.9 in) |
| 1975 | 18.5 mm (0.7 in) |
| 1976 | 13.0 mm (0.5 in) |
| 1977 | 28.7 mm (1.1 in) |
| 1978 | 17.6 mm (0.7 in) |
| 1979 | 15.6 mm (0.6 in) |
| 1980 | 23.4 mm (0.9 in) |
| 1981 | 21.5 mm (0.8 in) |
| 1982 | 24.4 mm (1.0 in) |
| 1983 | 28.0 mm (1.1 in) |
| 1984 | 27.7 mm (1.1 in) |
| 1985 | 17.1 mm (0.7 in) |
| 1986 | 26.5 mm (1.0 in) |
| 1987 | 30.5 mm (1.2 in) |
| 1988 | 14.3 mm (0.6 in) |
| 1989 | 32.8 mm (1.3 in) |
| 1990 | 29.4 mm (1.2 in) |
| 1991 | 27.9 mm (1.1 in) |
| 1992 | 39.6 mm (1.6 in) |
| 1993 | 46.3 mm (1.8 in) |
| 1994 | 18.8 mm (0.7 in) |
| 1995 | 30.9 mm (1.2 in) |
| 1996 | 20.3 mm (0.8 in) |
| 1997 | 27.0 mm (1.1 in) |
| 1998 | 44.2 mm (1.7 in) |
| 1999 | 23.2 mm (0.9 in) |
| 2000 | 16.3 mm (0.6 in) |
| 2001 | 29.3 mm (1.2 in) |
| 2002 | 29.0 mm (1.1 in) |
| 2003 | 28.0 mm (1.1 in) |
| 2004 | 26.5 mm (1.0 in) |
| 2005 | 26.4 mm (1.0 in) |
| 2006 | 28.7 mm (1.1 in) |
| 2007 | 13.5 mm (0.5 in) |
| 2008 | 10.2 mm (0.4 in) |
| 2009 | 11.3 mm (0.4 in) |
| 2010 | 20.2 mm (0.8 in) |
| 2011 | 17.3 mm (0.7 in) |
| 2012 | 17.5 mm (0.7 in) |
| 2013 | 31.0 mm (1.2 in) |
| 2014 | 21.1 mm (0.8 in) |
| 2015 | 26.7 mm (1.1 in) |
| 2016 | 34.1 mm (1.3 in) |
| 2017 | 20.3 mm (0.8 in) |
| 2018 | 21.4 mm (0.8 in) |
| 2019 | 14.7 mm (0.6 in) |
| 2020 | 30.3 mm (1.2 in) |
| 2021 | 18.0 mm (0.7 in) |
| 2022 | 18.5 mm (0.7 in) |
| 2023 | 28.3 mm (1.1 in) |
| 2024 | 40.6 mm (1.6 in) |
| 2025 | 22.1 mm (0.9 in) |
| 2026 | 21.9 mm (0.9 in) |
Longest dry spell (CDD)
| Year | Longest dry spell (CDD) |
|---|---|
| 1949 | 92 days |
| 1950 | 107 days |
| 1951 | 49 days |
| 1952 | 116 days |
| 1953 | 36 days |
| 1954 | 39 days |
| 1955 | 48 days |
| 1956 | 69 days |
| 1957 | 43 days |
| 1958 | 68 days |
| 1959 | 93 days |
| 1960 | 61 days |
| 1961 | 55 days |
| 1962 | 46 days |
| 1963 | 69 days |
| 1964 | 68 days |
| 1965 | 52 days |
| 1966 | 69 days |
| 1967 | 99 days |
| 1968 | 48 days |
| 1969 | 85 days |
| 1970 | 46 days |
| 1971 | 67 days |
| 1972 | 72 days |
| 1973 | 117 days |
| 1974 | 104 days |
| 1975 | 60 days |
| 1976 | 58 days |
| 1977 | 80 days |
| 1978 | 57 days |
| 1979 | 67 days |
| 1980 | 84 days |
| 1981 | 57 days |
| 1982 | 26 days |
| 1983 | 33 days |
| 1984 | 52 days |
| 1985 | 87 days |
| 1986 | 55 days |
| 1987 | 110 days |
| 1988 | 104 days |
| 1989 | 82 days |
| 1990 | 45 days |
| 1991 | 83 days |
| 1992 | 97 days |
| 1993 | 69 days |
| 1994 | 48 days |
| 1995 | 27 days |
| 1996 | 59 days |
| 1997 | 37 days |
| 1998 | 55 days |
| 1999 | 57 days |
| 2000 | 67 days |
| 2001 | 86 days |
| 2002 | 87 days |
| 2003 | 77 days |
| 2004 | 47 days |
| 2005 | 49 days |
| 2006 | 70 days |
| 2007 | 39 days |
| 2008 | 74 days |
| 2009 | 30 days |
| 2010 | 46 days |
| 2011 | 70 days |
| 2012 | 86 days |
| 2013 | 54 days |
| 2014 | 56 days |
| 2015 | 61 days |
| 2016 | 72 days |
| 2017 | 58 days |
| 2018 | 110 days |
| 2019 | 31 days |
| 2020 | 86 days |
| 2021 | 67 days |
| 2022 | 105 days |
| 2023 | 30 days |
| 2024 | 146 days |
| 2025 | 80 days |
| 2026 | 62 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
76 years with a frostAcross 76 years with a frost, the median last spring frost at Ephrata AP falls on 23 April and the median first autumn frost on 19 October, which leaves a median of 177 days between them.
In 1995 to 2025 the median growing season was 172 days. That is 7 days fewer than in 1949 to 1978.
Fitted over all years, the growing season changes by -1.4 days per decade at this station.
| Measure | Median, all years | Earliest period (1949 to 1978) | Recent period (1995 to 2025) | Recent against earliest | Fitted trend |
|---|---|---|---|---|---|
| Last spring frost | 23 April | 22 April | 24 April | 2 days later | +0.5 days per decade |
| First autumn frost | 19 October | 20 October | 16 October | 4 days earlier | -0.9 days per decade |
| Growing days | 177 days | 179 days | 172 days | 7 days fewer | -1.4 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
75 years, 1949 to 2025A day with at least 15.3 mm (0.6 in) of rain is expected about once in 2 years. A day with at least 36.8 mm (1.4 in) of rain is expected about once in 100 years.
| Expected about once in | A day with at least | Note |
|---|---|---|
| 2 years | 15.3 mm (0.6 in) | |
| 5 years | 20.2 mm (0.8 in) | |
| 10 years | 23.8 mm (0.9 in) | |
| 25 years | 28.7 mm (1.1 in) | |
| 50 years | 32.6 mm (1.3 in) | |
| 100 years | 36.8 mm (1.4 in) | Longer than the 75 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, 75 years of values from 1949 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: 44.2 mm (1.7 in) in 1998; 39.6 mm (1.6 in) in 1992; 28.2 mm (1.1 in) in 2020.
Station Changes
No change in the annual mean temperature of this station was found against its neighbours.
Climate Twins
2011 to 2025 against 1961 to 1990Over 2011 to 2025, Ephrata AP had a mean temperature of 11.2 C (52.2 F) and 179.1 mm (7.1 in) of rain a year. The 3 stations whose 1961 to 1990 climate was closest to that are Shiprock (United States, 1,468 km away), Pueblo Mem AP (United States, 1,578 km away) and Tacony 13 SE (United States, 1,602 km away).
| Twin station | Country | Distance away | Mean temperature, 1961-1990 | Rain a year, 1961-1990 | Climate difference |
|---|---|---|---|---|---|
| Shiprock | United States | 1,468 km (912 mi) | 11.5 C (52.8 F) | 176.6 mm (7.0 in) | 0.78 |
| Pueblo Mem AP | United States | 1,578 km (981 mi) | 11.5 C (52.7 F) | 285.1 mm (11.2 in) | 0.82 |
| Tacony 13 SE | United States | 1,602 km (995 mi) | 10.9 C (51.6 F) | 263.3 mm (10.4 in) | 0.83 |
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 2026-10-15 (15 October 2026). Records are computed by this site and are not official.
Data as of . Last revised (2026-10-15).