June
June · May · September
United States · 1991–2020
June leads for comfortable weather in Ephrata: typically 26.9°C by day, 12.7°C at night, with 17 mm of rain. Based on measured 1991–2020 NOAA station history.
June · May · September
July · August · June
May · April · September
The weakest month is January, scoring 5 against June’s 86 — days reach only 2.3°C, 22° below the 24°C the score treats as ideal.
Month by month
The bars show the comfort score. Day and night temperatures come from daily observed highs and lows; rain is the historical monthly estimate.
| Month | Day | Night | Rain | Wet days | Daylight | Comfort | Coverage |
|---|---|---|---|---|---|---|---|
| January | 2.3°C | -4.5°C | 22 mm | 5.7 | 8 h 51 | 5 | Strong coverage |
| February | 6.4°C | -2.8°C | 16 mm | 4 | 10 h 11 | 9 | Strong coverage |
| March | 12.4°C | 0.2°C | 18 mm | 4.3 | 11 h 45 | 34 | Strong coverage |
| April | 17.4°C | 3.8°C | 15 mm | 3.5 | 13 h 32 | 58 | Strong coverage |
| May | 23.1°C | 8.8°C | 19 mm | 4.2 | 15 h 04 | 85 | Strong coverage |
| June | 26.9°C | 12.7°C | 17 mm | 3.3 | 15 h 55 | 86 | Strong coverage |
| July | 32°C | 16.4°C | 8 mm | 1.5 | 15 h 35 | 71 | Strong coverage |
| August | 31.3°C | 15.4°C | 5 mm | 1.1 | 14 h 15 | 75 | Strong coverage |
| September | 26°C | 10.5°C | 6 mm | 1.4 | 12 h 30 | 85 | Strong coverage |
| October | 17.1°C | 4.2°C | 16 mm | 3.7 | 10 h 46 | 57 | Strong coverage |
| November | 7.8°C | -1.2°C | 22 mm | 5.5 | 9 h 15 | 15 | Strong coverage |
| December | 2.1°C | -4.5°C | 29 mm | 6.6 | 8 h 29 | 5 | Strong coverage |
What has changed
Each bar compares the 2011–2025 daytime average for that month against the same month in 1961–1990, measured at the same station. Months where the older record is too thin to compare are left blank.
| Month | Record high | Record low | Wettest day | Wettest / driest month | Years |
|---|---|---|---|---|---|
| January | 16.1°C31 Jan 1953 | -30.0°C29 Jan 1950 | 18 mm11 Jan 1959 | 63 mm2003 · driest 0 mm in 1977 | 78 |
| February | 18.3°C16 Feb 1977 | -31.1°C1 Feb 1950 | 23 mm18 Feb 1989 | 50 mm1958 · driest 0 mm in 1988 | 78 |
| March | 23.9°C26 Mar 2025 | -16.7°C4 Mar 1955 | 22 mm24 Mar 1991 | 52 mm1957 · driest 0 mm in 1973 | 78 |
| April | 34.4°C24 Apr 1977 | -7.1°C15 Apr 2022 | 24 mm10 Apr 2023 | 37 mm1967 · driest 0 mm in 1977 | 78 |
| May | 38.3°C31 May 1986 | -2.2°C8 May 2002 | 28 mm18 May 2020 | 47 mm1972 · driest 0 mm in 1992 | 78 |
| June | 46.7°C29 Jun 2021 | 1.1°C1 Jun 1976 | 25 mm4 Jun 1951 | 48 mm1984 · driest 0 mm in 1989 | 77 |
| July | 42.8°C18 Jul 1960 | 4.4°C8 Jul 1981 | 44 mm31 Jul 1998 | 49 mm1998 · driest 0 mm in 2020 | 78 |
| August | 46.1°C4 Aug 1961 | 2.2°C22 Aug 1960 | 24 mm21 Aug 1990 | 31 mm1999 · driest 0 mm in 1952 | 77 |
| September | 41.1°C3 Sep 1988 | -2.2°C23 Sep 2000 | 17 mm4 Sep 1960 | 43 mm1986 · driest 0 mm in 1961 | 77 |
| October | 31.1°C6 Oct 2014 | -13.3°C31 Oct 2002 | 23 mm17 Oct 2004 | 64 mm2016 · driest 0 mm in 1978 | 77 |
| November | 22.2°C9 Nov 1989 | -26.1°C23 Nov 1985 | 21 mm5 Nov 1998 | 93 mm1983 · driest 0 mm in 1976 | 77 |
| December | 20.6°C1 Dec 2021 | -29.4°C23 Dec 1983 | 19 mm28 Dec 1992 | 79 mm1992 · driest 0 mm in 2013 | 77 |
| Month | Days 25°C+ | Days 30°C+ | Frost nights | Heavy rain (10 mm+) | Snow days |
|---|---|---|---|---|---|
| January | 0 | 0 | 27 | <1 | 4 |
| February | 0 | 0 | 22 | <1 | 1 |
| March | 0 | 0 | 16 | <1 | <1 |
| April | 2 | <1 | 5 | <1 | 0 |
| May | 11 | 4 | <1 | <1 | 0 |
| June | 20 | 8 | 0 | <1 | 0 |
| July | 30 | 21 | 0 | <1 | 0 |
| August | 29 | 20 | 0 | <1 | 0 |
| September | 18 | 7 | <1 | <1 | 0 |
| October | 2 | <1 | 5 | <1 | 0 |
| November | 0 | 0 | 19 | <1 | 2 |
| December | 0 | 0 | 27 | <1 | 4 |
The best month has moved. On the 1961–1990 numbers the strongest month here was September (scoring 88); on 2011–2025 it is May (88). Both are scored the same way, from the same station — only the climate underneath changed.
| Month | Warm & dry days | Wet days | Washouts | Week with 3+ wet days | Daytime mean has ranged |
|---|---|---|---|---|---|
| January | 0% | 18% | 1% | 18% | -2.9–5.1°C |
| February | 0% | 15% | <1% | 13% | 1.4–9.0°C |
| March | 3% | 13% | <1% | 9% | 9.7–14.0°C |
| April | 26% | 10% | <1% | 5% | 14.9–19.5°C |
| May | 66% | 11% | 1% | 9% | 19.8–25.3°C |
| June | 88% | 10% | 1% | 5% | 24.4–29.5°C |
| July | 96% | 4% | <1% | <1% | 29.4–33.9°C |
| August | 96% | 4% | <1% | 2% | 28.4–33.1°C |
| September | 85% | 6% | <1% | 3% | 23.0–28.6°C |
| October | 29% | 11% | <1% | 11% | 15.2–19.4°C |
| November | <1% | 19% | 1% | 18% | 5.0–9.8°C |
| December | 0% | 21% | 1% | 22% | -1.1–4.4°C |
A warm and dry day reaches 20°C with under 1 mm of rain; a wet day gets 1 mm or more; a washout gets 10 mm or more. The week column is the share of seven-day stretches in that month, across the station’s whole daily record, that contained three or more wet days — the odds a week-long trip is rained on repeatedly, counted rather than modelled. The last column is the 10th to 90th percentile of that month’s daytime average across individual years: a narrow band means the average is what you will get, a wide one means the average is a midpoint between years that felt quite different.
The evidence behind this page