June
June · August · September
United States · 1991–2020
June leads for comfortable weather in Harris Hill: typically 24.4°C by day, 14.5°C at night, with 86 mm of rain. Based on measured 1991–2020 NOAA station history.
June · August · September
July · August · June
May · September · June
The weakest month is January, scoring 5 against June’s 85 — days reach only 0.2°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 | Sea | Daylight | Comfort | Coverage |
|---|---|---|---|---|---|---|---|---|
| January | 0.2°C | -7.2°C | 85 mm | 13.7 | 3.0°C | 9 h 20 | 5 | Strong coverage |
| February | 0.8°C | -7°C | 63 mm | 11.2 | 1.3°C | 10 h 27 | 5 | Strong coverage |
| March | 5.6°C | -3.1°C | 73 mm | 11 | 1.3°C | 11 h 47 | 5 | Strong coverage |
| April | 12.7°C | 2.5°C | 86 mm | 10.6 | 3.2°C | 13 h 20 | 26 | Strong coverage |
| May | 19.7°C | 9.1°C | 86 mm | 10 | 8.9°C | 14 h 37 | 62 | Strong coverage |
| June | 24.4°C | 14.5°C | 86 mm | 9.4 | 16.9°C | 15 h 20 | 85 | Strong coverage |
| July | 26.9°C | 17.3°C | 82 mm | 8 | 22.2°C | 15 h 03 | 75 | Strong coverage |
| August | 26.2°C | 16.5°C | 82 mm | 8.2 | 23.2°C | 13 h 56 | 79 | Strong coverage |
| September | 22.5°C | 12.5°C | 104 mm | 8.9 | 20.8°C | 12 h 26 | 76 | Strong coverage |
| October | 15.5°C | 6.6°C | 102 mm | 11.3 | 15.7°C | 10 h 58 | 40 | Strong coverage |
| November | 8.9°C | 1.2°C | 89 mm | 10.6 | 10.2°C | 9 h 40 | 11 | Strong coverage |
| December | 3°C | -3.6°C | 95 mm | 13.4 | 6.3°C | 9 h 01 | 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 | 22.2°C25 Jan 1950 | -26.7°C17 Jan 1982 | 47 mm11 Jan 1982 | 175 mm1982 · driest 26 mm in 1946 | 88 |
| February | 21.7°C26 Feb 2000 | -28.9°C2 Feb 1961 | 53 mm16 Feb 1954 | 150 mm1990 · driest 21 mm in 1968 | 88 |
| March | 27.8°C21 Mar 2012 | -21.7°C8 Mar 1984 | 52 mm29 Mar 1954 | 161 mm2026 · driest 27 mm in 2013 | 88 |
| April | 34.4°C28 Apr 1990 | -11.1°C3 Apr 1954 | 50 mm5 Apr 1941 | 162 mm2017 · driest 23 mm in 2003 | 88 |
| May | 33.9°C26 May 2020 | -3.3°C10 May 1947 | 87 mm19 May 1986 | 205 mm2011 · driest 15 mm in 2005 | 89 |
| June | 35.6°C25 Jun 1988 | 1.7°C1 Jun 1945 | 127 mm22 Jun 1987 | 212 mm1987 · driest 3 mm in 1955 | 89 |
| July | 36.7°C9 Jul 2020 | 6.1°C11 Jul 1945 | 86 mm29 Jul 1963 | 227 mm1992 · driest 19 mm in 2001 | 89 |
| August | 37.2°C27 Aug 1948 | 3.3°C29 Aug 1982 | 99 mm7 Aug 1963 | 271 mm1977 · driest 28 mm in 1948 | 88 |
| September | 36.7°C3 Sep 1953 | -0.6°C29 Sep 1942 | 124 mm14 Sep 1979 | 228 mm1977 · driest 20 mm in 1964 | 88 |
| October | 30.6°C4 Oct 1951 | -6.7°C29 Oct 1965 | 76 mm1 Oct 1945 | 232 mm1954 · driest 8 mm in 1963 | 88 |
| November | 26.7°C3 Nov 1961 | -13.9°C30 Nov 1958 | 59 mm20 Nov 2000 | 248 mm1985 · driest 15 mm in 1939 | 88 |
| December | 23.3°C3 Dec 1982 | -23.3°C25 Dec 1980 | 50 mm23 Dec 2022 | 221 mm1990 · driest 18 mm in 1943 | 88 |
| Month | Days 25°C+ | Days 30°C+ | Frost nights | Heavy rain (10 mm+) | Snow days |
|---|---|---|---|---|---|
| January | 0 | 0 | 27 | 3 | 16 |
| February | 0 | 0 | 26 | 2 | 13 |
| March | <1 | 0 | 23 | 2 | 9 |
| April | 1 | <1 | 9 | 3 | 3 |
| May | 7 | <1 | <1 | 3 | 0 |
| June | 14 | 3 | 0 | 3 | 0 |
| July | 24 | 6 | 0 | 3 | 0 |
| August | 22 | 4 | 0 | 3 | 0 |
| September | 10 | 2 | 0 | 3 | 0 |
| October | 2 | 0 | 2 | 4 | <1 |
| November | 0 | 0 | 13 | 3 | 5 |
| December | 0 | 0 | 24 | 3 | 12 |
| Month | Warm & dry days | Wet days | Washouts | Week with 3+ wet days | Daytime mean has ranged |
|---|---|---|---|---|---|
| January | 0% | 44% | 7% | 64% | -3.9–2.8°C |
| February | 0% | 40% | 6% | 57% | -2.6–4.2°C |
| March | 2% | 36% | 7% | 51% | 2.4–9.1°C |
| April | 11% | 36% | 9% | 49% | 9.9–15.3°C |
| May | 35% | 32% | 9% | 41% | 17.0–22.0°C |
| June | 63% | 29% | 9% | 31% | 22.9–26.1°C |
| July | 74% | 25% | 8% | 25% | 25.2–28.8°C |
| August | 71% | 28% | 10% | 30% | 24.6–27.9°C |
| September | 51% | 29% | 10% | 36% | 20.1–24.3°C |
| October | 19% | 32% | 10% | 42% | 13.6–18.3°C |
| November | 3% | 39% | 10% | 57% | 6.2–11.3°C |
| December | <1% | 43% | 9% | 63% | -0.9–5.4°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