July
July · August · September
United States · 1991–2020
July leads for comfortable weather in Family (historical): typically 26.6°C by day, 9.9°C at night, with 32 mm of rain. Based on measured 1991–2020 NOAA station history.
July · August · September
July · August · September
September · June · August
The weakest month is January, scoring 5 against July’s 81 — days reach only 0.1°C, 24° 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 | 0.1°C | -11.2°C | 6 mm | 1.8 | 8 h 43 | 5 | Strong coverage |
| February | 1.2°C | -10.9°C | 6 mm | 2.2 | 10 h 06 | 5 | Strong coverage |
| March | 5.8°C | -6.8°C | 9 mm | 2.9 | 11 h 44 | 5 | Strong coverage |
| April | 11.2°C | -1.9°C | 24 mm | 4.9 | 13 h 36 | 26 | Strong coverage |
| May | 16.8°C | 3°C | 42 mm | 6.7 | 15 h 12 | 50 | Strong coverage |
| June | 21°C | 7.2°C | 69 mm | 8.1 | 16 h 05 | 67 | Strong coverage |
| July | 26.6°C | 9.9°C | 32 mm | 4.6 | 15 h 44 | 81 | Strong coverage |
| August | 26.2°C | 9.1°C | 25 mm | 4.3 | 14 h 20 | 81 | Strong coverage |
| September | 20.3°C | 4.8°C | 28 mm | 4.4 | 12 h 31 | 68 | Strong coverage |
| October | 12.3°C | -1°C | 14 mm | 3.3 | 10 h 43 | 32 | Strong coverage |
| November | 4.9°C | -6.2°C | 10 mm | 2.6 | 9 h 07 | 5 | Strong coverage |
| December | 0.3°C | -10.6°C | 7 mm | 2.1 | 8 h 19 | 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 | 19.4°C31 Jan 1962 | -43.3°C31 Jan 1918 | 20 mm5 Jan 1927 | 38 mm1909 · driest 0 mm in 1910 | 118 |
| February | 21.7°C27 Feb 1992 | -43.9°C15 Feb 1936 | 12 mm2 Feb 1947 | 29 mm2018 · driest 0 mm in 1912 | 118 |
| March | 25.0°C30 Mar 2004 | -36.7°C8 Mar 2002 | 21 mm30 Mar 1981 | 45 mm1987 · driest 0 mm in 1919 | 118 |
| April | 30.6°C25 Apr 1910 | -31.7°C2 Apr 1935 | 28 mm29 Apr 1922 | 59 mm1978 · driest 0 mm in 1934 | 118 |
| May | 33.3°C31 May 2025 | -12.8°C2 May 1954 | 52 mm20 May 1981 | 178 mm1927 · driest 5 mm in 1918 | 117 |
| June | 38.3°C23 Jun 1941 | -6.1°C4 Jun 1910 | 71 mm7 Jun 1924 | 202 mm1991 · driest 6 mm in 2007 | 116 |
| July | 41.1°C6 Jul 2007 | 0.0°C16 Jul 1999 | 59 mm25 Jul 1913 | 228 mm1993 · driest 0 mm in 1919 | 118 |
| August | 41.7°C5 Aug 1961 | -3.9°C25 Aug 1910 | 60 mm15 Aug 1968 | 126 mm1936 · driest 0 mm in 1917 | 117 |
| September | 36.1°C1 Sep 1967 | -20.0°C25 Sep 1934 | 52 mm6 Sep 2013 | 105 mm1911 · driest 0 mm in 1932 | 118 |
| October | 31.1°C1 Oct 1992 | -25.6°C26 Oct 1919 | 36 mm8 Oct 1923 | 56 mm1975 · driest 0 mm in 1915 | 118 |
| November | 26.1°C3 Nov 1962 | -36.1°C19 Nov 1921 | 31 mm13 Nov 1930 | 34 mm1978 · driest 0 mm in 1911 | 117 |
| December | 19.4°C5 Dec 1939 | -43.3°C18 Dec 1924 | 23 mm15 Dec 1924 | 37 mm1929 · driest 0 mm in 1908 | 117 |
| Month | Days 25°C+ | Days 30°C+ | Frost nights | Heavy rain (10 mm+) | Snow days |
|---|---|---|---|---|---|
| January | 0 | 0 | 28 | 0 | 2 |
| February | 0 | 0 | 26 | 0 | 2 |
| March | 0 | 0 | 27 | 0 | 2 |
| April | <1 | 0 | 21 | <1 | 1 |
| May | 3 | <1 | 8 | 1 | <1 |
| June | 7 | 1 | <1 | 2 | 0 |
| July | 21 | 9 | 0 | <1 | 0 |
| August | 20 | 9 | <1 | <1 | <1 |
| September | 8 | 2 | 4 | <1 | 0 |
| October | <1 | <1 | 18 | <1 | <1 |
| November | 0 | 0 | 24 | <1 | 1 |
| December | 0 | 0 | 29 | 0 | 2 |
The best month has moved. On the 1961–1990 numbers the strongest month here was July (scoring 84); on 2011–2025 it is August (80). 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% | 8% | <1% | 4% | -8.4–3.9°C |
| February | <1% | 9% | <1% | 5% | -6.3–6.1°C |
| March | <1% | 10% | <1% | 6% | 0.1–8.9°C |
| April | 11% | 14% | 2% | 12% | 8.3–15.7°C |
| May | 31% | 22% | 4% | 24% | 14.4–20.2°C |
| June | 53% | 26% | 7% | 28% | 18.8–24.4°C |
| July | 81% | 16% | 3% | 13% | 24.0–29.5°C |
| August | 77% | 16% | 3% | 14% | 23.0–28.9°C |
| September | 50% | 14% | 3% | 10% | 16.4–23.5°C |
| October | 19% | 10% | <1% | 5% | 9.6–16.7°C |
| November | 1% | 8% | <1% | 4% | 0.8–9.2°C |
| December | 0% | 8% | <1% | 5% | -5.6–5.1°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