May
May · September · June
United States · 1991–2020
May leads for comfortable weather in Gilsonite: typically 25.4°C by day, 6.6°C at night, with 19 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 80 — days reach only 4°C, 20° below the 24°C the score treats as ideal, and nights drop to -10°C.
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 | 4°C | -10°C | 20 mm | 4.1 | 9 h 41 | 5 | Good coverage |
| February | 8.2°C | -6.5°C | 18 mm | 4 | 10 h 40 | 8 | Good coverage |
| March | 15°C | -2.3°C | 25 mm | 4.8 | 11 h 50 | 38 | Good coverage |
| April | 19.4°C | 1.4°C | 21 mm | 4 | 13 h 10 | 59 | Good coverage |
| May | 25.4°C | 6.6°C | 19 mm | 3.1 | 14 h 18 | 80 | Good coverage |
| June | 31.2°C | 10.7°C | 15 mm | 2.2 | 14 h 54 | 68 | Good coverage |
| July | 34.6°C | 14.6°C | 14 mm | 2.5 | 14 h 40 | 64 | Good coverage |
| August | 33°C | 13.9°C | 21 mm | 4.2 | 13 h 42 | 67 | Good coverage |
| September | 28.3°C | 8.1°C | 25 mm | 3.8 | 12 h 24 | 73 | Good coverage |
| October | 20.3°C | 1.1°C | 30 mm | 4.3 | 11 h 06 | 61 | Good coverage |
| November | 11.9°C | -4.5°C | 19 mm | 3.3 | 9 h 58 | 25 | Good coverage |
| December | 4.7°C | -9.1°C | 18 mm | 3.6 | 9 h 25 | 5 | Good 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 | 16.7°C31 Jan 1965 | -36.7°C12 Jan 1963 | 27 mm27 Jan 1927 | 65 mm1957 · driest 0 mm in 1961 | 118 |
| February | 21.1°C27 Feb 1986 | -37.8°C6 Feb 1989 | 25 mm12 Feb 1903 | 56 mm1932 · driest 0 mm in 1997 | 114 |
| March | 28.3°C22 Mar 2004 | -19.4°C2 Mar 1903 | 30 mm13 Mar 2001 | 78 mm1906 · driest 0 mm in 1934 | 116 |
| April | 32.8°C21 Apr 1934 | -16.7°C1 Apr 1920 | 24 mm4 Apr 2009 | 58 mm1944 · driest 0 mm in 2023 | 117 |
| May | 37.8°C30 May 2000 | -6.1°C3 May 1907 | 44 mm24 May 1906 | 85 mm1993 · driest 0 mm in 2001 | 116 |
| June | 41.1°C17 Jun 2021 | -2.8°C7 Jun 1954 | 40 mm7 Jun 1984 | 67 mm1984 · driest 0 mm in 1978 | 115 |
| July | 43.9°C14 Jul 2002 | 2.8°C22 Jul 1913 | 33 mm22 Jul 1911 | 63 mm1932 · driest 0 mm in 1943 | 116 |
| August | 40.6°C1 Aug 2002 | 2.8°C27 Aug 1992 | 49 mm21 Aug 1893 | 110 mm1957 · driest 0 mm in 1996 | 116 |
| September | 38.9°C7 Sep 2022 | -5.6°C29 Sep 1927 | 50 mm22 Sep 1941 | 85 mm1939 · driest 0 mm in 1956 | 116 |
| October | 33.9°C1 Oct 2001 | -14.4°C31 Oct 2019 | 56 mm15 Oct 1928 | 99 mm1908 · driest 0 mm in 1964 | 114 |
| November | 24.4°C10 Nov 1934 | -21.7°C30 Nov 2006 | 26 mm2 Nov 1992 | 61 mm2024 · driest 0 mm in 1924 | 114 |
| December | 20.0°C24 Dec 1955 | -35.0°C26 Dec 1924 | 32 mm6 Dec 1966 | 77 mm1951 · driest 0 mm in 1998 | 116 |
| Month | Days 25°C+ | Days 30°C+ | Frost nights | Heavy rain (10 mm+) | Snow days |
|---|---|---|---|---|---|
| January | 0 | 0 | 28 | <1 | 3 |
| February | 0 | 0 | 25 | <1 | 3 |
| March | <1 | 0 | 22 | <1 | <1 |
| April | 6 | <1 | 12 | <1 | 0 |
| May | 17 | 6 | 2 | <1 | 0 |
| June | 26 | 19 | 0 | <1 | 0 |
| July | 30 | 28 | 0 | <1 | 0 |
| August | 30 | 26 | 0 | <1 | 0 |
| September | 23 | 12 | <1 | <1 | 0 |
| October | 7 | <1 | 13 | 1 | <1 |
| November | 0 | 0 | 25 | <1 | <1 |
| December | 0 | 0 | 30 | <1 | 3 |
| Month | Warm & dry days | Wet days | Washouts | Week with 3+ wet days | Daytime mean has ranged |
|---|---|---|---|---|---|
| January | 0% | 14% | 1% | 9% | -1.3–7.0°C |
| February | <1% | 14% | <1% | 9% | 3.5–11.5°C |
| March | 14% | 15% | 1% | 9% | 11.3–16.6°C |
| April | 50% | 13% | 2% | 9% | 16.4–22.4°C |
| May | 78% | 12% | 2% | 7% | 22.3–27.8°C |
| June | 92% | 8% | 1% | 4% | 28.6–33.4°C |
| July | 89% | 11% | 2% | 7% | 32.5–36.2°C |
| August | 86% | 14% | 2% | 10% | 31.0–34.2°C |
| September | 84% | 13% | 2% | 9% | 25.7–30.3°C |
| October | 58% | 13% | 3% | 9% | 17.8–23.3°C |
| November | 5% | 12% | 1% | 6% | 8.9–14.2°C |
| December | 0% | 12% | 1% | 6% | 1.1–7.5°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