July
July · August · September
United States · 1991–2020
July leads for comfortable weather in East Cathlamet: typically 23.7°C by day, 11.4°C at night, with 15 mm of rain. Based on measured 1991–2020 NOAA station history.
July · August · September
August · July · September
June · July · August
The weakest month is January, scoring 5 against July’s 93 — days reach only 8.1°C, 16° 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 | Sea | Daylight | Comfort | Coverage |
|---|---|---|---|---|---|---|---|---|
| January | 8.1°C | 0.7°C | 210 mm | 18.5 | 9.1°C | 8 h 59 | 5 | Strong coverage |
| February | 10.2°C | 0.5°C | 145 mm | 15.1 | 8.9°C | 10 h 15 | 5 | Strong coverage |
| March | 12.5°C | 1.9°C | 155 mm | 18.1 | 9.3°C | 11 h 45 | 8 | Strong coverage |
| April | 14.9°C | 3.6°C | 109 mm | 15.5 | 10.4°C | 13 h 29 | 28 | Strong coverage |
| May | 18.2°C | 6.8°C | 68 mm | 11 | 12.4°C | 14 h 56 | 54 | Strong coverage |
| June | 20.4°C | 9.3°C | 44 mm | 8.1 | 14.2°C | 15 h 45 | 72 | Strong coverage |
| July | 23.7°C | 11.4°C | 15 mm | 2.9 | 14.8°C | 15 h 26 | 93 | Strong coverage |
| August | 24.4°C | 11.3°C | 17 mm | 3.4 | 14.9°C | 14 h 10 | 92 | Strong coverage |
| September | 22.2°C | 8.7°C | 52 mm | 6.2 | 14.3°C | 12 h 29 | 78 | Strong coverage |
| October | 16.4°C | 5.2°C | 118 mm | 13 | 12.8°C | 10 h 49 | 37 | Strong coverage |
| November | 11°C | 2.4°C | 219 mm | 18.6 | 11.1°C | 9 h 22 | 5 | Strong coverage |
| December | 7.6°C | 0.6°C | 238 mm | 19.2 | 9.7°C | 8 h 38 | 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 | 16.7°C15 Jan 2018 | -15.6°C31 Jan 1950 | 119 mm12 Jan 1936 | 472 mm1953 · driest 10 mm in 1985 | 90 |
| February | 22.2°C28 Feb 1986 | -17.2°C4 Feb 1989 | 107 mm8 Feb 1996 | 425 mm1999 · driest 17 mm in 1993 | 90 |
| March | 27.2°C27 Mar 2025 | -7.8°C5 Mar 2019 | 82 mm27 Mar 2005 | 343 mm1956 · driest 13 mm in 1965 | 90 |
| April | 31.7°C29 Apr 2023 | -3.9°C1 Apr 2008 | 106 mm5 Apr 1991 | 242 mm1991 · driest 24 mm in 1939 | 90 |
| May | 34.4°C17 May 2008 | -2.2°C1 May 1954 | 40 mm3 May 1975 | 147 mm1948 · driest 4 mm in 2018 | 91 |
| June | 39.4°C28 Jun 2021 | 1.7°C4 Jun 1991 | 44 mm6 Jun 1958 | 123 mm1937 · driest 3 mm in 1945 | 90 |
| July | 39.4°C14 Jul 1941 | 1.7°C28 Jul 1984 | 27 mm17 Jul 1993 | 77 mm1983 · driest 0 mm in 1984 | 90 |
| August | 39.4°C10 Aug 1981 | 4.4°C28 Aug 2000 | 43 mm22 Aug 2004 | 102 mm1977 · driest 0 mm in 2022 | 90 |
| September | 37.8°C3 Sep 1988 | -1.1°C23 Sep 2000 | 49 mm7 Sep 1978 | 240 mm2013 · driest 0 mm in 1975 | 90 |
| October | 31.1°C2 Oct 1987 | -8.3°C31 Oct 2002 | 84 mm6 Oct 1981 | 325 mm2016 · driest 6 mm in 1987 | 90 |
| November | 22.2°C4 Nov 2010 | -13.3°C15 Nov 1955 | 89 mm15 Nov 1950 | 552 mm2006 · driest 15 mm in 1936 | 90 |
| December | 17.8°C10 Dec 1993 | -17.2°C21 Dec 1990 | 170 mm3 Dec 2007 | 470 mm2007 · driest 38 mm in 1976 | 89 |
| Month | Days 25°C+ | Days 30°C+ | Frost nights | Heavy rain (10 mm+) | Snow days |
|---|---|---|---|---|---|
| January | 0 | 0 | 14 | 7 | <1 |
| February | 0 | 0 | 14 | 5 | <1 |
| March | <1 | 0 | 10 | 5 | <1 |
| April | <1 | <1 | 4 | 3 | 0 |
| May | 3 | <1 | <1 | 2 | 0 |
| June | 5 | 1 | 0 | 1 | 0 |
| July | 11 | 3 | 0 | <1 | 0 |
| August | 12 | 3 | 0 | <1 | 0 |
| September | 8 | 2 | <1 | 2 | 0 |
| October | <1 | 0 | 3 | 4 | 0 |
| November | 0 | 0 | 10 | 7 | <1 |
| December | 0 | 0 | 14 | 8 | <1 |
The best month has moved. On the 1961–1990 numbers the strongest month here was August (scoring 92); on 2011–2025 it is July (94). 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% | 60% | 24% | 77% | 4.7–9.6°C |
| February | <1% | 57% | 20% | 74% | 7.4–12.0°C |
| March | 4% | 57% | 17% | 74% | 9.9–14.3°C |
| April | 13% | 48% | 10% | 64% | 12.6–16.8°C |
| May | 27% | 35% | 6% | 45% | 15.6–20.0°C |
| June | 45% | 27% | 4% | 32% | 18.4–22.5°C |
| July | 77% | 10% | 1% | 8% | 21.4–25.4°C |
| August | 78% | 14% | 2% | 15% | 21.8–25.6°C |
| September | 59% | 23% | 6% | 30% | 20.2–23.7°C |
| October | 15% | 41% | 13% | 58% | 14.4–17.9°C |
| November | 0% | 60% | 25% | 79% | 8.6–11.8°C |
| December | 0% | 62% | 26% | 80% | 5.2–8.9°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