May
May · October · June
United States · 1991–2020
May leads for comfortable weather in Johnsville Mobile Home Park: typically 24°C by day, 11.8°C at night, with 17 mm of rain. Based on measured 1991–2020 NOAA station history.
May · October · June
July · August · September
April · November · March
The weakest month is January, scoring 43 against May’s 94 — days reach only 15.1°C, 9° 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 | 15.1°C | 6.2°C | 81 mm | 8.7 | 12.2°C | 9 h 51 | 43 | Good coverage |
| February | 16.9°C | 7.5°C | 91 mm | 9.3 | 12.3°C | 10 h 45 | 50 | Good coverage |
| March | 19.5°C | 8.6°C | 66 mm | 8 | 12.3°C | 11 h 51 | 65 | Good coverage |
| April | 21.3°C | 9.7°C | 33 mm | 4.8 | 12.0°C | 13 h 06 | 80 | Good coverage |
| May | 24°C | 11.8°C | 17 mm | 2.6 | 12.2°C | 14 h 09 | 94 | Good coverage |
| June | 26.5°C | 13.6°C | 4 mm | 0.7 | 12.9°C | 14 h 44 | 89 | Good coverage |
| July | 28.3°C | 15°C | 0 mm | 0.1 | 14.1°C | 14 h 30 | 86 | Good coverage |
| August | 28.2°C | 15.1°C | 1 mm | 0.1 | 14.9°C | 13 h 36 | 86 | Good coverage |
| September | 27.2°C | 14.3°C | 2 mm | 0.4 | 14.9°C | 12 h 23 | 88 | Good coverage |
| October | 23.8°C | 11.8°C | 18 mm | 2.1 | 14.2°C | 11 h 10 | 94 | Good coverage |
| November | 18.5°C | 8.4°C | 37 mm | 4.7 | 13.4°C | 10 h 06 | 68 | Good coverage |
| December | 15.1°C | 6.1°C | 81 mm | 8.3 | 12.5°C | 9 h 36 | 43 | Good coverage |
| Month | Record high | Record low | Wettest day | Wettest / driest month | Years |
|---|---|---|---|---|---|
| January | 26.1°C8 Jan 1962 | -7.8°C6 Jan 1894 | 91 mm30 Jan 1968 | 315 mm1911 · driest 3 mm in 1920 | 112 |
| February | 27.2°C26 Feb 1986 | -4.4°C11 Feb 1894 | 66 mm24 Feb 1917 | 260 mm1998 · driest 1 mm in 1953 | 112 |
| March | 31.1°C20 Mar 2026 | -3.9°C15 Mar 1895 | 71 mm21 Mar 1937 | 197 mm1907 · driest 0 mm in 1934 | 113 |
| April | 35.0°C30 Apr 1996 | -3.3°C5 Apr 1895 | 37 mm28 Apr 1983 | 116 mm2006 · driest 0 mm in 1909 | 112 |
| May | 38.9°C30 May 1910 | 0.0°C21 May 1895 | 41 mm27 May 1990 | 69 mm1915 · driest 0 mm in 1938 | 113 |
| June | 42.8°C14 Jun 2000 | 0.6°C19 Jun 1893 | 20 mm16 Jun 1995 | 37 mm1929 · driest 0 mm in 2024 | 114 |
| July | 42.2°C14 Jul 1972 | 4.4°C1 Jul 1896 | 19 mm2 Jul 1980 | 19 mm1980 · driest 0 mm in 1941 | 115 |
| August | 40.6°C1 Aug 1993 | 3.9°C26 Aug 1893 | 49 mm21 Aug 1968 | 50 mm1968 · driest 0 mm in 1977 | 112 |
| September | 41.1°C9 Sep 1944 | 1.7°C23 Sep 1903 | 110 mm12 Sep 1918 | 161 mm1918 · driest 0 mm in 1944 | 112 |
| October | 41.1°C2 Oct 2024 | -1.1°C18 Oct 1893 | 82 mm13 Oct 1962 | 117 mm1962 · driest 0 mm in 2002 | 107 |
| November | 29.4°C3 Nov 1950 | -5.6°C29 Nov 1896 | 62 mm29 Nov 1970 | 157 mm1970 · driest 0 mm in 1933 | 109 |
| December | 26.1°C12 Dec 1958 | -7.2°C22 Dec 1990 | 69 mm3 Dec 1915 | 235 mm1955 · driest 1 mm in 1989 | 109 |
| Month | Days 25°C+ | Days 30°C+ | Frost nights | Heavy rain (10 mm+) |
|---|---|---|---|---|
| January | 0 | 0 | <1 | 3 |
| February | <1 | 0 | 0 | 3 |
| March | 3 | <1 | 0 | 2 |
| April | 6 | <1 | 0 | 1 |
| May | 11 | 3 | 0 | <1 |
| June | 17 | 6 | 0 | <1 |
| July | 25 | 8 | 0 | 0 |
| August | 24 | 8 | 0 | <1 |
| September | 19 | 7 | 0 | 0 |
| October | 11 | 3 | 0 | <1 |
| November | <1 | 0 | <1 | 1 |
| December | 0 | 0 | 1 | 3 |
| Month | Warm & dry days | Wet days | Washouts | Week with 3+ wet days | Daytime mean has ranged |
|---|---|---|---|---|---|
| January | 4% | 26% | 8% | 32% | 12.4–15.9°C |
| February | 15% | 27% | 8% | 33% | 14.7–18.4°C |
| March | 33% | 24% | 6% | 27% | 16.0–21.0°C |
| April | 53% | 14% | 3% | 11% | 18.7–22.9°C |
| May | 77% | 6% | <1% | 4% | 20.6–25.4°C |
| June | 95% | 2% | <1% | <1% | 23.7–28.0°C |
| July | 100% | <1% | 0% | 0% | 26.0–29.0°C |
| August | 99% | <1% | <1% | <1% | 26.0–28.8°C |
| September | 97% | 2% | <1% | 1% | 24.7–28.3°C |
| October | 79% | 8% | 2% | 5% | 21.8–25.2°C |
| November | 34% | 16% | 4% | 18% | 16.8–20.8°C |
| December | 4% | 23% | 7% | 27% | 12.8–16.3°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