June
June · September · August
United States · 1991–2020
June leads for comfortable weather in Logan: typically 26.3°C by day, 9.1°C at night, with 27 mm of rain. Based on measured 1991–2020 NOAA station history.
June · September · August
July · August · June
May · June · September
The weakest month is January, scoring 5 against June’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 | -9.9°C | 44 mm | 7.5 | 9 h 27 | 5 | Strong coverage |
| February | 2.9°C | -8°C | 35 mm | 6.7 | 10 h 31 | 5 | Strong coverage |
| March | 9.9°C | -2.7°C | 44 mm | 6.8 | 11 h 48 | 17 | Strong coverage |
| April | 14.9°C | 1°C | 50 mm | 7.7 | 13 h 16 | 38 | Strong coverage |
| May | 20.2°C | 5.4°C | 52 mm | 7.3 | 14 h 31 | 64 | Strong coverage |
| June | 26.3°C | 9.1°C | 27 mm | 4.1 | 15 h 11 | 81 | Strong coverage |
| July | 31.9°C | 12.9°C | 13 mm | 2.6 | 14 h 55 | 70 | Strong coverage |
| August | 31°C | 11.9°C | 16 mm | 2.9 | 13 h 51 | 71 | Strong coverage |
| September | 25.3°C | 6.8°C | 32 mm | 3.9 | 12 h 25 | 80 | Strong coverage |
| October | 17.4°C | 0.8°C | 41 mm | 5.6 | 11 h 00 | 49 | Strong coverage |
| November | 8.6°C | -4.1°C | 32 mm | 5.9 | 9 h 46 | 12 | Strong coverage |
| December | 1.2°C | -8.9°C | 36 mm | 7.5 | 9 h 10 | 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 | 15.6°C21 Jan 1967 | -32.2°C30 Jan 2002 | 30 mm23 Jan 1997 | 134 mm2017 · driest 3 mm in 1961 | 69 |
| February | 21.1°C5 Feb 2025 | -33.9°C2 Feb 1985 | 38 mm18 Feb 1986 | 109 mm2017 · driest 2 mm in 2002 | 69 |
| March | 27.2°C26 Mar 2026 | -24.4°C5 Mar 1966 | 35 mm23 Mar 1994 | 95 mm1995 · driest 1 mm in 1965 | 70 |
| April | 31.1°C24 Apr 2012 | -12.2°C6 Apr 2023 | 29 mm10 Apr 1998 | 131 mm1986 · driest 5 mm in 1977 | 69 |
| May | 35.0°C30 May 2003 | -6.7°C24 May 1960 | 29 mm29 May 2004 | 134 mm2015 · driest 0 mm in 1969 | 69 |
| June | 37.2°C29 Jun 2013 | -2.8°C18 Jun 2024 | 56 mm3 Jun 1980 | 113 mm1964 · driest 0 mm in 1996 | 68 |
| July | 40.0°C21 Jul 1960 | 3.9°C2 Jul 1968 | 32 mm12 Jul 1997 | 56 mm1993 · driest 0 mm in 1966 | 68 |
| August | 38.9°C5 Aug 1979 | 1.1°C23 Aug 1960 | 63 mm19 Aug 1977 | 121 mm1977 · driest 0 mm in 1985 | 69 |
| September | 37.2°C11 Sep 1958 | -5.6°C25 Sep 1970 | 55 mm27 Sep 1982 | 137 mm1973 · driest 0 mm in 2018 | 68 |
| October | 31.7°C2 Oct 2010 | -15.6°C30 Oct 2019 | 45 mm7 Oct 1961 | 122 mm2021 · driest 0 mm in 1978 | 67 |
| November | 23.3°C7 Nov 2020 | -25.6°C25 Nov 2010 | 38 mm14 Nov 1958 | 137 mm1965 · driest 1 mm in 1967 | 70 |
| December | 19.4°C2 Dec 1995 | -34.4°C23 Dec 1990 | 28 mm25 Dec 1959 | 120 mm1983 · driest 1 mm in 1986 | 69 |
| Month | Days 25°C+ | Days 30°C+ | Frost nights | Heavy rain (10 mm+) | Snow days |
|---|---|---|---|---|---|
| January | 0 | 0 | 29 | 1 | 6 |
| February | 0 | 0 | 26 | <1 | 4 |
| March | 0 | 0 | 24 | 2 | 2 |
| April | 1 | <1 | 12 | 2 | 1 |
| May | 7 | <1 | 2 | 2 | 0 |
| June | 20 | 9 | <1 | <1 | 0 |
| July | 29 | 24 | 0 | <1 | 0 |
| August | 29 | 22 | 0 | <1 | 0 |
| September | 18 | 6 | <1 | <1 | 0 |
| October | 3 | <1 | 14 | 1 | <1 |
| November | 0 | 0 | 25 | <1 | 2 |
| December | 0 | 0 | 28 | <1 | 6 |
The best month has moved. On the 1961–1990 numbers the strongest month here was September (scoring 81); on 2011–2025 it is June (79). 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% | 22% | 3% | 23% | -4.3–3.6°C |
| February | 0% | 23% | 3% | 24% | -1.8–6.5°C |
| March | 4% | 23% | 4% | 25% | 6.3–12.6°C |
| April | 20% | 26% | 5% | 29% | 12.4–17.6°C |
| May | 52% | 23% | 4% | 25% | 18.0–23.1°C |
| June | 80% | 15% | 4% | 14% | 24.0–29.2°C |
| July | 91% | 9% | 1% | 5% | 30.2–33.7°C |
| August | 88% | 11% | 2% | 8% | 29.0–32.7°C |
| September | 77% | 15% | 3% | 13% | 22.6–27.9°C |
| October | 37% | 17% | 5% | 15% | 14.9–21.1°C |
| November | 1% | 20% | 3% | 22% | 5.1–11.1°C |
| December | 0% | 22% | 2% | 24% | -2.1–4.8°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