May
May · September · June
United States · 1991–2020
May leads for comfortable weather in Pylesville: typically 23.6°C by day, 11.2°C at night, with 98 mm of rain. Based on measured 1991–2020 NOAA station history.
May · September · June
August · June · July
October · April · May
The weakest month is January, scoring 5 against May’s 78 — days reach only 5.4°C, 19° 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 | -4.9°C | 96 mm | 9.4 | 9 h 39 | 5 | Strong coverage |
| February | 6.8°C | -4.1°C | 69 mm | 8.1 | 10 h 38 | 5 | Good coverage |
| March | 11.4°C | -0.1°C | 112 mm | 9.6 | 11 h 49 | 15 | Strong coverage |
| April | 18.4°C | 5.4°C | 89 mm | 8.5 | 13 h 11 | 52 | Strong coverage |
| May | 23.6°C | 11.2°C | 98 mm | 9.2 | 14 h 20 | 78 | Strong coverage |
| June | 28.9°C | 16.8°C | 115 mm | 8.5 | 14 h 58 | 64 | Good coverage |
| July | 31.5°C | 19.1°C | 120 mm | 8 | 14 h 43 | 52 | Strong coverage |
| August | 30.3°C | 18.3°C | 106 mm | 7.8 | 13 h 44 | 59 | Strong coverage |
| September | 26.4°C | 14.4°C | 142 mm | 7.9 | 12 h 24 | 72 | Strong coverage |
| October | 20.2°C | 7.8°C | 118 mm | 7.3 | 11 h 05 | 59 | Strong coverage |
| November | 13.1°C | 1.5°C | 79 mm | 6.8 | 9 h 56 | 30 | Strong coverage |
| December | 7.7°C | -1.8°C | 106 mm | 8.5 | 9 h 22 | 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 | 23.3°C26 Jan 1950 | -22.8°C22 Jan 1984 | 98 mm10 Jan 2024 | 264 mm1979 · driest 11 mm in 1981 | 86 |
| February | 25.0°C22 Feb 1991 | -23.3°C14 Feb 1979 | 55 mm23 Feb 2003 | 154 mm1979 · driest 10 mm in 2009 | 85 |
| March | 32.2°C30 Mar 1998 | -15.6°C4 Mar 1943 | 93 mm20 Mar 1958 | 203 mm1958 · driest 0 mm in 2006 | 87 |
| April | 35.0°C18 Apr 2002 | -7.2°C7 Apr 1982 | 66 mm15 Apr 1983 | 245 mm1983 · driest 30 mm in 1985 | 82 |
| May | 37.2°C20 May 1996 | -1.7°C1 May 1978 | 145 mm1 May 2014 | 284 mm2014 · driest 0 mm in 2005 | 80 |
| June | 42.8°C21 Jun 1988 | 5.0°C1 Jun 1938 | 110 mm22 Jun 1972 | 340 mm2006 · driest 6 mm in 1954 | 80 |
| July | 41.1°C13 Jul 1994 | 6.7°C3 Jul 1989 | 141 mm8 Jul 1952 | 261 mm1975 · driest 7 mm in 1955 | 80 |
| August | 40.0°C26 Aug 1993 | 4.4°C30 Aug 1987 | 128 mm27 Aug 1971 | 312 mm1955 · driest 4 mm in 1951 | 80 |
| September | 37.2°C3 Sep 1993 | 0.0°C27 Sep 1991 | 210 mm16 Sep 1999 | 446 mm1999 · driest 10 mm in 1986 | 79 |
| October | 34.4°C9 Oct 2007 | -6.7°C28 Oct 1936 | 150 mm1 Oct 2010 | 252 mm2007 · driest 0 mm in 2024 | 79 |
| November | 28.3°C1 Nov 1950 | -12.8°C26 Nov 1938 | 85 mm25 Nov 1950 | 227 mm1986 · driest 17 mm in 2017 | 82 |
| December | 25.0°C7 Dec 1998 | -18.9°C31 Dec 1963 | 83 mm5 Dec 1993 | 209 mm1996 · driest 6 mm in 1955 | 86 |
| Month | Days 25°C+ | Days 30°C+ | Frost nights | Heavy rain (10 mm+) | Snow days |
|---|---|---|---|---|---|
| January | 0 | 0 | 23 | 3 | 3 |
| February | 0 | 0 | 19 | 2 | 2 |
| March | <1 | <1 | 15 | 3 | 2 |
| April | 4 | <1 | 3 | 3 | 0 |
| May | 13 | 4 | 0 | 4 | 0 |
| June | 24 | 13 | 0 | 4 | 0 |
| July | 29 | 21 | 0 | 4 | 0 |
| August | 28 | 17 | 0 | 3 | 0 |
| September | 20 | 7 | 0 | 4 | 0 |
| October | 5 | <1 | 1 | 3 | 0 |
| November | <1 | 0 | 12 | 3 | 0 |
| December | <1 | 0 | 20 | 4 | 1 |
| Month | Warm & dry days | Wet days | Washouts | Week with 3+ wet days | Daytime mean has ranged |
|---|---|---|---|---|---|
| January | <1% | 29% | 10% | 31% | 1.1–7.8°C |
| February | <1% | 28% | 9% | 31% | 3.3–9.3°C |
| March | 7% | 29% | 11% | 34% | 7.7–14.4°C |
| April | 27% | 31% | 11% | 37% | 15.2–20.2°C |
| May | 56% | 31% | 11% | 38% | 20.9–25.2°C |
| June | 70% | 29% | 12% | 34% | 26.5–29.9°C |
| July | 73% | 27% | 12% | 31% | 28.7–32.9°C |
| August | 73% | 27% | 11% | 28% | 27.8–31.6°C |
| September | 72% | 24% | 11% | 25% | 23.7–27.6°C |
| October | 39% | 23% | 9% | 22% | 17.5–21.7°C |
| November | 6% | 25% | 9% | 24% | 10.5–15.0°C |
| December | <1% | 27% | 10% | 30% | 3.7–9.6°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