September
September · June · August
United States · 1991–2020
September leads for comfortable weather in Jenera: typically 24.6°C by day, 12.4°C at night, with 67 mm of rain. Based on measured 1991–2020 NOAA station history.
September · June · August
July · August · June
October · May · September
The weakest month is January, scoring 5 against September’s 85 — days reach only 0.9°C, 23° 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 | 0.9°C | -6.9°C | 51 mm | 7.2 | 9 h 32 | 5 | Strong coverage |
| February | 2.7°C | -5.6°C | 45 mm | 6.3 | 10 h 34 | 5 | Strong coverage |
| March | 8.6°C | -1.2°C | 58 mm | 7.9 | 11 h 49 | 12 | Strong coverage |
| April | 16°C | 4.3°C | 87 mm | 9.9 | 13 h 14 | 41 | Strong coverage |
| May | 22.2°C | 10.5°C | 95 mm | 10.8 | 14 h 26 | 70 | Strong coverage |
| June | 27.1°C | 15.8°C | 100 mm | 9.3 | 15 h 06 | 74 | Strong coverage |
| July | 28.9°C | 17.6°C | 92 mm | 8.3 | 14 h 50 | 66 | Strong coverage |
| August | 27.8°C | 16.4°C | 85 mm | 7.3 | 13 h 48 | 74 | Strong coverage |
| September | 24.6°C | 12.4°C | 67 mm | 6.9 | 12 h 25 | 85 | Strong coverage |
| October | 17.7°C | 6.5°C | 63 mm | 7.4 | 11 h 02 | 56 | Strong coverage |
| November | 10°C | 0.9°C | 60 mm | 6.9 | 9 h 50 | 21 | Strong coverage |
| December | 3.6°C | -3.7°C | 54 mm | 7.3 | 9 h 15 | 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 | 21.1°C25 Jan 1950 | -28.9°C19 Jan 1994 | 65 mm26 Jan 1978 | 205 mm1950 · driest 2 mm in 1961 | 85 |
| February | 24.4°C24 Feb 2017 | -27.7°C12 Feb 2014 | 47 mm16 Feb 1976 | 115 mm1950 · driest 4 mm in 1969 | 85 |
| March | 29.4°C21 Mar 2012 | -27.8°C12 Mar 1948 | 71 mm8 Mar 2009 | 157 mm1973 · driest 12 mm in 1957 | 85 |
| April | 30.6°C30 Apr 1942 | -12.2°C7 Apr 1982 | 60 mm13 Apr 1979 | 180 mm1961 · driest 19 mm in 1946 | 85 |
| May | 36.1°C28 May 2012 | -2.2°C10 May 1966 | 93 mm25 May 1997 | 230 mm1997 · driest 20 mm in 1988 | 85 |
| June | 40.0°C25 Jun 1988 | 3.9°C6 Jun 1945 | 124 mm13 Jun 1981 | 276 mm1981 · driest 7 mm in 2007 | 85 |
| July | 38.9°C7 Jul 1988 | 6.7°C1 Jul 1988 | 99 mm12 Jul 1966 | 265 mm1966 · driest 7 mm in 1974 | 85 |
| August | 38.9°C31 Aug 1951 | 2.8°C30 Aug 1946 | 111 mm31 Aug 1981 | 201 mm2007 · driest 6 mm in 1970 | 83 |
| September | 37.8°C2 Sep 1953 | -2.8°C29 Sep 1942 | 98 mm1 Sep 1959 | 231 mm1972 · driest 9 mm in 2023 | 83 |
| October | 33.3°C1 Oct 2019 | -6.1°C21 Oct 1974 | 58 mm4 Oct 2013 | 139 mm2001 · driest 9 mm in 2024 | 83 |
| November | 27.2°C2 Nov 2016 | -17.8°C30 Nov 1958 | 68 mm18 Nov 2017 | 178 mm1983 · driest 4 mm in 2009 | 83 |
| December | 21.7°C12 Dec 2015 | -27.8°C22 Dec 1989 | 64 mm21 Dec 2013 | 172 mm1990 · driest 5 mm in 2010 | 84 |
| Month | Days 25°C+ | Days 30°C+ | Frost nights | Heavy rain (10 mm+) | Snow days |
|---|---|---|---|---|---|
| January | 0 | 0 | 26 | 2 | 9 |
| February | 0 | 0 | 24 | 2 | 5 |
| March | <1 | 0 | 20 | 2 | 4 |
| April | 3 | <1 | 6 | 3 | <1 |
| May | 11 | 3 | <1 | 3 | 0 |
| June | 22 | 9 | 0 | 3 | 0 |
| July | 28 | 13 | 0 | 3 | 0 |
| August | 26 | 9 | 0 | 3 | 0 |
| September | 15 | 5 | 0 | 2 | 0 |
| October | 5 | <1 | 3 | 2 | <1 |
| November | <1 | 0 | 14 | 2 | 2 |
| December | 0 | 0 | 24 | 2 | 5 |
| Month | Warm & dry days | Wet days | Washouts | Week with 3+ wet days | Daytime mean has ranged |
|---|---|---|---|---|---|
| January | 0% | 23% | 5% | 25% | -3.7–4.3°C |
| February | <1% | 23% | 4% | 23% | -1.1–5.7°C |
| March | 6% | 28% | 7% | 34% | 4.8–12.1°C |
| April | 20% | 33% | 10% | 41% | 12.7–18.3°C |
| May | 44% | 33% | 10% | 42% | 18.5–24.7°C |
| June | 67% | 29% | 11% | 34% | 24.6–29.2°C |
| July | 73% | 26% | 10% | 26% | 26.9–31.0°C |
| August | 76% | 23% | 9% | 22% | 25.6–29.7°C |
| September | 64% | 23% | 7% | 21% | 22.0–26.7°C |
| October | 31% | 23% | 6% | 23% | 14.9–20.8°C |
| November | 5% | 26% | 7% | 28% | 6.4–12.7°C |
| December | <1% | 26% | 6% | 29% | -0.7–6.2°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