September
September · June · May
United States · 1991–2020
September leads for comfortable weather in Spring Lake: typically 24.5°C by day, 15.1°C at night, with 102 mm of rain. Based on measured 1991–2020 NOAA station history.
September · June · May
July · August · June
May · October · September
The weakest month is January, scoring 5 against September’s 85 — days reach only 5.5°C, 18° 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 | 5.5°C | -3.9°C | 113 mm | 9.2 | 6.4°C | 9 h 36 | 5 | Good coverage |
| February | 6.4°C | -3.1°C | 80 mm | 7.4 | 4.8°C | 10 h 37 | 5 | Good coverage |
| March | 9.7°C | 0.3°C | 104 mm | 8.2 | 5.1°C | 11 h 49 | 12 | Good coverage |
| April | 15.1°C | 5.1°C | 97 mm | 9.5 | 7.9°C | 13 h 13 | 38 | Good coverage |
| May | 20°C | 10.5°C | 104 mm | 9.3 | 12.6°C | 14 h 23 | 63 | Good coverage |
| June | 25.3°C | 16°C | 111 mm | 8.8 | 18.2°C | 15 h 01 | 78 | Good coverage |
| July | 28.5°C | 19.4°C | 114 mm | 8.2 | 22.5°C | 14 h 46 | 61 | Good coverage |
| August | 27.8°C | 18.8°C | 131 mm | 7.8 | 23.4°C | 13 h 45 | 63 | Good coverage |
| September | 24.5°C | 15.1°C | 102 mm | 7.6 | 21.6°C | 12 h 24 | 85 | Strong coverage |
| October | 18.5°C | 8.3°C | 123 mm | 7.8 | 17.7°C | 11 h 04 | 53 | Good coverage |
| November | 13.1°C | 3°C | 96 mm | 7.4 | 13.2°C | 9 h 54 | 30 | Good coverage |
| December | 8.3°C | -1°C | 127 mm | 8.6 | 9.6°C | 9 h 20 | 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 | 24.4°C26 Jan 1950 | -22.2°C22 Jan 1984 | 102 mm12 Jan 1991 | 222 mm1915 · driest 9 mm in 1981 | 108 |
| February | 25.6°C25 Feb 1985 | -24.4°C9 Feb 1934 | 87 mm21 Feb 1951 | 172 mm1939 · driest 22 mm in 2006 | 109 |
| March | 30.6°C29 Mar 1945 | -15.6°C10 Mar 1984 | 75 mm9 Mar 1998 | 251 mm2024 · driest 26 mm in 1910 | 108 |
| April | 33.3°C8 Apr 1929 | -11.1°C1 Apr 1923 | 74 mm10 Apr 1998 | 249 mm1983 · driest 24 mm in 1963 | 108 |
| May | 36.1°C23 May 1925 | -1.7°C1 May 1978 | 92 mm1 May 2014 | 247 mm1990 · driest 4 mm in 1911 | 109 |
| June | 38.3°C25 Jun 2025 | 2.8°C1 Jun 1938 | 119 mm8 Jun 2013 | 307 mm2013 · driest 1 mm in 1949 | 108 |
| July | 41.1°C9 Jul 1936 | 7.2°C12 Jul 1984 | 173 mm30 Jul 1918 | 411 mm1938 · driest 6 mm in 1944 | 109 |
| August | 38.3°C10 Aug 2001 | 6.1°C31 Aug 1976 | 128 mm13 Aug 2014 | 300 mm1992 · driest 6 mm in 1964 | 109 |
| September | 36.7°C12 Sep 1983 | 0.0°C25 Sep 1983 | 126 mm14 Sep 1944 | 402 mm2023 · driest 1 mm in 1941 | 110 |
| October | 35.0°C5 Oct 1941 | -4.4°C31 Oct 1983 | 122 mm26 Oct 1943 | 362 mm2005 · driest 0 mm in 2024 | 106 |
| November | 28.3°C1 Nov 2024 | -10.6°C30 Nov 1929 | 94 mm8 Nov 1977 | 252 mm1972 · driest 11 mm in 1976 | 106 |
| December | 23.3°C30 Dec 1984 | -22.2°C30 Dec 1917 | 169 mm16 Dec 1974 | 267 mm1974 · driest 8 mm in 1989 | 107 |
| Month | Days 25°C+ | Days 30°C+ | Frost nights | Heavy rain (10 mm+) | Snow days |
|---|---|---|---|---|---|
| January | 0 | 0 | 23 | 3 | 1 |
| February | 0 | 0 | 21 | 3 | 1 |
| March | <1 | 0 | 16 | 4 | <1 |
| April | 2 | <1 | 3 | 3 | 0 |
| May | 6 | 2 | 0 | 3 | 0 |
| June | 16 | 5 | 0 | 4 | 0 |
| July | 26 | 11 | 0 | 4 | 0 |
| August | 26 | 8 | 0 | 4 | 0 |
| September | 14 | 2 | 0 | 3 | 0 |
| October | 2 | <1 | <1 | 4 | 0 |
| November | <1 | 0 | 9 | 3 | <1 |
| December | 0 | 0 | 21 | 5 | <1 |
| Month | Warm & dry days | Wet days | Washouts | Week with 3+ wet days | Daytime mean has ranged |
|---|---|---|---|---|---|
| January | <1% | 28% | 11% | 32% | 1.0–8.2°C |
| February | <1% | 29% | 11% | 33% | 2.0–8.2°C |
| March | 4% | 29% | 12% | 32% | 7.0–12.2°C |
| April | 14% | 31% | 11% | 38% | 12.6–16.9°C |
| May | 40% | 30% | 11% | 36% | 18.2–22.2°C |
| June | 66% | 28% | 10% | 31% | 23.3–26.9°C |
| July | 73% | 27% | 11% | 29% | 26.4–29.9°C |
| August | 74% | 26% | 12% | 26% | 25.8–29.1°C |
| September | 68% | 22% | 10% | 21% | 22.4–25.7°C |
| October | 30% | 23% | 9% | 22% | 16.8–20.3°C |
| November | 6% | 25% | 11% | 26% | 10.5–14.8°C |
| December | <1% | 27% | 12% | 31% | 3.3–9.6°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