June
June · September · July
United States · 1991–2020
June leads for comfortable weather in Firth: typically 25.1°C by day, 9.3°C at night, with 29 mm of rain. Based on measured 1991–2020 NOAA station history.
June · September · July
July · August · June
May · June · September
The weakest month is January, scoring 5 against June’s 85 — days reach only 0°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°C | -8.5°C | 25 mm | 5.4 | 9 h 18 | 5 | Strong coverage |
| February | 3.1°C | -6.4°C | 18 mm | 4.8 | 10 h 26 | 5 | Good coverage |
| March | 9.6°C | -1.9°C | 26 mm | 4.9 | 11 h 47 | 20 | Strong coverage |
| April | 14.4°C | 1.1°C | 35 mm | 6.5 | 13 h 21 | 40 | Strong coverage |
| May | 19.9°C | 5.5°C | 46 mm | 6.5 | 14 h 39 | 65 | Strong coverage |
| June | 25.1°C | 9.3°C | 29 mm | 4.2 | 15 h 22 | 85 | Strong coverage |
| July | 30.7°C | 12.9°C | 13 mm | 2.4 | 15 h 05 | 74 | Strong coverage |
| August | 30.1°C | 11.9°C | 16 mm | 2.3 | 13 h 57 | 74 | Strong coverage |
| September | 24.3°C | 7.3°C | 25 mm | 3.6 | 12 h 27 | 85 | Strong coverage |
| October | 16°C | 1.3°C | 30 mm | 4.8 | 10 h 57 | 47 | Strong coverage |
| November | 7.2°C | -4.2°C | 18 mm | 3.9 | 9 h 38 | 9 | Strong coverage |
| December | 0.4°C | -8.3°C | 27 mm | 5.7 | 8 h 59 | 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°C1 Jan 1981 | -40.0°C21 Jan 1937 | 38 mm5 Jan 1988 | 83 mm1911 · driest 0 mm in 2000 | 124 |
| February | 27.2°C21 Feb 1896 | -39.4°C9 Feb 1933 | 25 mm16 Feb 1904 | 67 mm2017 · driest 0 mm in 1903 | 122 |
| March | 26.1°C9 Mar 1900 | -28.3°C12 Mar 1922 | 51 mm2 Mar 2024 | 113 mm1906 · driest 0 mm in 1898 | 123 |
| April | 31.1°C25 Apr 1946 | -14.4°C1 Apr 1936 | 53 mm18 Apr 2000 | 104 mm1963 · driest 0 mm in 1985 | 123 |
| May | 35.6°C29 May 2003 | -8.3°C1 May 1972 | 43 mm6 May 1993 | 153 mm2015 · driest 0 mm in 2001 | 125 |
| June | 42.2°C21 Jun 1900 | -4.4°C6 Jun 1899 | 76 mm1 Jun 1999 | 131 mm1963 · driest 0 mm in 1935 | 123 |
| July | 40.0°C22 Jul 2023 | -1.1°C9 Jul 1912 | 47 mm30 Jul 1897 | 71 mm1914 · driest 0 mm in 1911 | 122 |
| August | 40.0°C14 Aug 1958 | -5.0°C25 Aug 1910 | 42 mm7 Aug 2014 | 109 mm2014 · driest 0 mm in 1937 | 122 |
| September | 37.2°C4 Sep 2022 | -11.1°C25 Sep 1926 | 32 mm8 Sep 1913 | 74 mm2017 · driest 0 mm in 1922 | 118 |
| October | 31.1°C3 Oct 1963 | -18.3°C30 Oct 2019 | 41 mm22 Oct 1961 | 102 mm2016 · driest 0 mm in 1917 | 121 |
| November | 23.3°C6 Nov 1999 | -31.1°C27 Nov 1896 | 35 mm18 Nov 1942 | 76 mm1909 · driest 0 mm in 1976 | 118 |
| December | 16.1°C1 Dec 1995 | -34.4°C19 Dec 1924 | 30 mm31 Dec 1967 | 76 mm2016 · driest 0 mm in 1976 | 123 |
| Month | Days 25°C+ | Days 30°C+ | Frost nights | Heavy rain (10 mm+) | Snow days |
|---|---|---|---|---|---|
| January | 0 | 0 | 28 | <1 | 3 |
| February | 0 | 0 | 24 | 0 | 2 |
| March | 0 | 0 | 20 | <1 | <1 |
| April | <1 | 0 | 12 | <1 | <1 |
| May | 6 | <1 | 2 | 1 | 0 |
| June | 15 | 5 | <1 | <1 | 0 |
| July | 27 | 19 | 0 | <1 | 0 |
| August | 26 | 17 | <1 | <1 | 0 |
| September | 15 | 3 | 1 | <1 | 0 |
| October | 2 | <1 | 12 | <1 | <1 |
| November | 0 | 0 | 22 | <1 | 1 |
| December | 0 | 0 | 27 | <1 | 3 |
| Month | Warm & dry days | Wet days | Washouts | Week with 3+ wet days | Daytime mean has ranged |
|---|---|---|---|---|---|
| January | 0% | 18% | 1% | 19% | -3.7–2.9°C |
| February | <1% | 18% | <1% | 15% | -1.4–6.5°C |
| March | 3% | 16% | 2% | 13% | 5.5–11.9°C |
| April | 22% | 17% | 2% | 12% | 12.5–18.7°C |
| May | 51% | 18% | 3% | 19% | 17.8–23.2°C |
| June | 78% | 14% | 2% | 11% | 22.6–28.5°C |
| July | 92% | 8% | 1% | 4% | 28.4–33.2°C |
| August | 91% | 8% | 2% | 5% | 27.5–31.9°C |
| September | 73% | 11% | 2% | 9% | 21.4–26.7°C |
| October | 31% | 13% | 3% | 11% | 13.3–20.1°C |
| November | <1% | 15% | 2% | 12% | 4.3–10.4°C |
| December | 0% | 18% | 1% | 17% | -2.8–4.0°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