August
August · June · July
United States · 1991–2020
August leads for comfortable weather in Jeffris: typically 24.9°C by day, 12.5°C at night, with 90 mm of rain. Based on measured 1991–2020 NOAA station history.
August · June · July
July · August · June
September · May · June
The weakest month is January, scoring 5 against August’s 79 — days reach only -5.4°C, 29° 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 | -5.4°C | -16.1°C | 31 mm | 7.2 | 9 h 04 | 5 | Strong coverage |
| February | -2.6°C | -15.1°C | 30 mm | 5.6 | 10 h 18 | 5 | Strong coverage |
| March | 3.8°C | -9.1°C | 46 mm | 6.9 | 11 h 46 | 5 | Strong coverage |
| April | 11.1°C | -2°C | 75 mm | 9.2 | 13 h 27 | 16 | Strong coverage |
| May | 18.9°C | 5.4°C | 96 mm | 10.8 | 14 h 52 | 50 | Strong coverage |
| June | 23.8°C | 11°C | 115 mm | 10.5 | 15 h 39 | 74 | Strong coverage |
| July | 26.1°C | 13.4°C | 111 mm | 9.4 | 15 h 21 | 74 | Strong coverage |
| August | 24.9°C | 12.5°C | 90 mm | 8.8 | 14 h 06 | 79 | Strong coverage |
| September | 20.5°C | 8.2°C | 105 mm | 9.4 | 12 h 28 | 61 | Strong coverage |
| October | 12.7°C | 1.5°C | 86 mm | 10.4 | 10 h 51 | 25 | Strong coverage |
| November | 3.8°C | -5.1°C | 49 mm | 7.2 | 9 h 26 | 5 | Strong coverage |
| December | -2.7°C | -11.7°C | 40 mm | 7.3 | 8 h 43 | 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 | 11.7°C25 Jan 1981 | -40.6°C28 Jan 1915 | 37 mm13 Jan 1950 | 90 mm1950 · driest 4 mm in 1985 | 120 |
| February | 17.8°C28 Feb 2024 | -41.1°C3 Feb 1996 | 45 mm21 Feb 1937 | 113 mm2019 · driest 1 mm in 1958 | 120 |
| March | 25.6°C20 Mar 2012 | -37.8°C1 Mar 1962 | 49 mm16 Mar 2016 | 146 mm1942 · driest 0 mm in 1895 | 120 |
| April | 33.3°C28 Apr 1952 | -23.9°C1 Apr 1924 | 78 mm18 Apr 2002 | 161 mm2002 · driest 7 mm in 1895 | 120 |
| May | 37.2°C31 May 1934 | -7.8°C2 May 1911 | 83 mm31 May 1958 | 191 mm1991 · driest 14 mm in 1986 | 118 |
| June | 40.0°C30 Jun 1931 | -3.9°C6 Jun 1913 | 118 mm13 Jun 1981 | 298 mm1946 · driest 13 mm in 2006 | 118 |
| July | 42.2°C13 Jul 1936 | -0.6°C13 Jul 1930 | 210 mm8 Jul 2000 | 260 mm2000 · driest 16 mm in 1989 | 117 |
| August | 36.1°C16 Aug 1988 | -2.2°C30 Aug 1915 | 103 mm21 Aug 1926 | 233 mm1978 · driest 18 mm in 1970 | 119 |
| September | 36.7°C10 Sep 1908 | -6.1°C30 Sep 1918 | 98 mm5 Sep 2018 | 245 mm2010 · driest 9 mm in 2024 | 119 |
| October | 33.3°C1 Oct 1976 | -16.7°C30 Oct 1925 | 91 mm18 Oct 2016 | 226 mm1911 · driest 0 mm in 1895 | 119 |
| November | 26.1°C13 Nov 1930 | -26.7°C30 Nov 1976 | 54 mm7 Nov 1977 | 145 mm1934 · driest 3 mm in 1939 | 117 |
| December | 16.7°C2 Dec 1998 | -36.7°C27 Dec 1924 | 51 mm18 Dec 1987 | 119 mm2015 · driest 1 mm in 1943 | 117 |
| Month | Days 25°C+ | Days 30°C+ | Frost nights | Heavy rain (10 mm+) | Snow days |
|---|---|---|---|---|---|
| January | 0 | 0 | 31 | <1 | 9 |
| February | 0 | 0 | 28 | <1 | 7 |
| March | <1 | 0 | 28 | 2 | 4 |
| April | <1 | 0 | 21 | 3 | 2 |
| May | 5 | <1 | 5 | 3 | <1 |
| June | 14 | 2 | <1 | 4 | 0 |
| July | 21 | 5 | 0 | 3 | 0 |
| August | 17 | 3 | 0 | 3 | 0 |
| September | 7 | <1 | 2 | 3 | 0 |
| October | 1 | 0 | 14 | 3 | <1 |
| November | 0 | 0 | 26 | 1 | 5 |
| December | 0 | 0 | 30 | 1 | 8 |
The best month has moved. On the 1961–1990 numbers the strongest month here was June (scoring 83); on 2011–2025 it is August (84). 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% | 21% | 2% | 18% | -9.1–-2.4°C |
| February | 0% | 18% | 2% | 14% | -6.7–0.6°C |
| March | <1% | 21% | 4% | 20% | 0.1–6.6°C |
| April | 10% | 28% | 7% | 34% | 8.0–15.4°C |
| May | 34% | 33% | 9% | 41% | 16.1–22.4°C |
| June | 55% | 35% | 12% | 47% | 21.9–26.3°C |
| July | 68% | 30% | 10% | 36% | 24.3–28.8°C |
| August | 66% | 28% | 11% | 32% | 22.8–26.9°C |
| September | 41% | 32% | 10% | 40% | 18.0–22.4°C |
| October | 14% | 28% | 6% | 31% | 10.0–16.1°C |
| November | <1% | 25% | 5% | 25% | 0.6–7.2°C |
| December | 0% | 22% | 2% | 21% | -6.7–-0.2°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