September
September · May · June
United States · 1991–2020
September leads for comfortable weather in New Brighton: typically 25.6°C by day, 16.1°C at night, with 97 mm of rain. Based on measured 1991–2020 NOAA station history.
September · May · June
August · July · June
October · May · April
The weakest month is January, scoring 5 against September’s 80 — days reach only 4.6°C, 19° 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 | 4.6°C | -3.4°C | 87 mm | 8.3 | 6.0°C | 9 h 34 | 5 | Strong coverage |
| February | 6.2°C | -2.5°C | 76 mm | 7.3 | 4.3°C | 10 h 35 | 5 | Strong coverage |
| March | 10.7°C | 1.3°C | 105 mm | 8.8 | 4.8°C | 11 h 49 | 16 | Strong coverage |
| April | 17.1°C | 6.9°C | 98 mm | 8.6 | 7.9°C | 13 h 14 | 49 | Strong coverage |
| May | 22.8°C | 12.3°C | 101 mm | 9.1 | 12.6°C | 14 h 25 | 76 | Strong coverage |
| June | 27.9°C | 17.7°C | 110 mm | 8.8 | 18.1°C | 15 h 04 | 67 | Strong coverage |
| July | 30.7°C | 20.9°C | 118 mm | 8.1 | 22.2°C | 14 h 49 | 51 | Strong coverage |
| August | 29.5°C | 20.1°C | 105 mm | 8 | 23.1°C | 13 h 47 | 58 | Strong coverage |
| September | 25.6°C | 16.1°C | 97 mm | 7.1 | 21.4°C | 12 h 25 | 80 | Strong coverage |
| October | 19.1°C | 9.6°C | 96 mm | 7.3 | 17.3°C | 11 h 03 | 62 | Strong coverage |
| November | 12.9°C | 4.1°C | 85 mm | 7.1 | 12.7°C | 9 h 52 | 33 | Strong coverage |
| December | 7.3°C | -0.4°C | 105 mm | 8.9 | 9.0°C | 9 h 17 | 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 | 23.3°C26 Jan 1950 | -25.0°C11 Jan 1859 | 75 mm21 Jan 1979 | 257 mm1979 · driest 9 mm in 1849 | 174 |
| February | 26.7°C21 Feb 2018 | -25.6°C9 Feb 1934 | 95 mm22 Feb 1878 | 174 mm1885 · driest 4 mm in 1855 | 174 |
| March | 31.7°C29 Mar 1945 | -16.7°C4 Mar 1868 | 101 mm13 Mar 2010 | 283 mm1983 · driest 4 mm in 1848 | 175 |
| April | 36.1°C17 Apr 2002 | -10.6°C1 Apr 1923 | 157 mm15 Apr 2007 | 301 mm2007 · driest 9 mm in 1848 | 175 |
| May | 37.2°C19 May 2026 | -0.6°C3 May 1861 | 100 mm23 May 1979 | 260 mm1984 · driest 11 mm in 1903 | 176 |
| June | 39.4°C30 Jun 2021 | 3.3°C2 Jun 1843 | 116 mm26 Jun 1884 | 293 mm1903 · driest 2 mm in 1949 | 176 |
| July | 42.2°C22 Jul 2011 | 7.8°C1 Jul 1845 | 195 mm28 Jul 1897 | 485 mm1897 · driest 14 mm in 2022 | 175 |
| August | 40.6°C9 Aug 2001 | 7.2°C29 Aug 1982 | 381 mm5 Aug 1843 | 571 mm1843 · driest 7 mm in 1916 | 173 |
| September | 40.6°C2 Sep 1953 | 1.1°C22 Sep 1904 | 220 mm23 Sep 1882 | 449 mm1882 · driest 0 mm in 1854 | 173 |
| October | 35.6°C2 Oct 2019 | -5.6°C23 Oct 1845 | 151 mm9 Oct 1903 | 337 mm1903 · driest 0 mm in 2024 | 173 |
| November | 29.4°C1 Nov 1950 | -13.3°C30 Nov 1875 | 171 mm8 Nov 1977 | 293 mm1977 · driest 7 mm in 1857 | 173 |
| December | 24.4°C7 Dec 1998 | -25.0°C30 Dec 1917 | 70 mm22 Dec 1983 | 241 mm1983 · driest 2 mm in 1877 | 173 |
| Month | Days 25°C+ | Days 30°C+ | Frost nights | Heavy rain (10 mm+) | Snow days |
|---|---|---|---|---|---|
| January | 0 | 0 | 23 | 3 | 5 |
| February | 0 | 0 | 20 | 3 | 4 |
| March | <1 | 0 | 12 | 3 | 3 |
| April | 4 | <1 | 1 | 3 | <1 |
| May | 10 | 4 | 0 | 3 | 0 |
| June | 23 | 11 | 0 | 4 | 0 |
| July | 29 | 19 | 0 | 4 | 0 |
| August | 28 | 14 | 0 | 4 | 0 |
| September | 17 | 5 | 0 | 3 | 0 |
| October | 4 | <1 | <1 | 3 | 0 |
| November | <1 | 0 | 6 | 3 | <1 |
| December | 0 | 0 | 18 | 4 | 3 |
The best month has moved. On the 1961–1990 numbers the strongest month here was September (scoring 88); on 2011–2025 it is May (83). 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 | <1% | 26% | 9% | 28% | -0.6–6.6°C |
| February | <1% | 26% | 10% | 28% | 0.8–7.6°C |
| March | 4% | 27% | 11% | 31% | 5.6–12.9°C |
| April | 20% | 28% | 10% | 33% | 13.3–18.3°C |
| May | 50% | 29% | 10% | 35% | 19.2–24.2°C |
| June | 70% | 27% | 10% | 30% | 24.5–28.8°C |
| July | 73% | 27% | 12% | 30% | 27.2–31.7°C |
| August | 75% | 25% | 11% | 24% | 26.0–30.2°C |
| September | 68% | 22% | 9% | 20% | 21.8–26.4°C |
| October | 31% | 21% | 9% | 18% | 15.7–20.7°C |
| November | 5% | 23% | 9% | 21% | 8.8–14.4°C |
| December | <1% | 26% | 10% | 28% | 2.0–8.2°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