May
May · October · September
United States · 1991–2020
May leads for comfortable weather in Spencer: typically 26.4°C by day, 13.7°C at night, with 70 mm of rain. Based on measured 1991–2020 NOAA station history.
May · October · September
August · July · June
October · April · November
The weakest month is January, scoring 18 against May’s 81 — days reach only 10.8°C, 13° below the 24°C the score treats as ideal, and nights drop to -0.9°C.
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 | 10.8°C | -0.9°C | 81 mm | 7.3 | 9 h 59 | 18 | Strong coverage |
| February | 13.2°C | 0.6°C | 67 mm | 6.6 | 10 h 50 | 31 | Strong coverage |
| March | 17.5°C | 4.2°C | 104 mm | 8.2 | 11 h 51 | 45 | Strong coverage |
| April | 22.9°C | 9°C | 88 mm | 6.8 | 13 h 03 | 75 | Strong coverage |
| May | 26.4°C | 13.7°C | 70 mm | 7 | 14 h 02 | 81 | Strong coverage |
| June | 30.1°C | 18.4°C | 105 mm | 7.5 | 14 h 34 | 60 | Strong coverage |
| July | 31.6°C | 20.5°C | 98 mm | 7.6 | 14 h 21 | 52 | Strong coverage |
| August | 30.7°C | 19.8°C | 91 mm | 6.7 | 13 h 30 | 58 | Strong coverage |
| September | 27.4°C | 16.1°C | 87 mm | 5.9 | 12 h 22 | 77 | Strong coverage |
| October | 22.4°C | 9.2°C | 70 mm | 5 | 11 h 13 | 78 | Strong coverage |
| November | 16.7°C | 3.6°C | 72 mm | 5.4 | 10 h 14 | 48 | Strong coverage |
| December | 12.2°C | 0.3°C | 78 mm | 6.3 | 9 h 45 | 25 | 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 | 27.8°C15 Jan 1937 | -23.9°C28 Jan 1940 | 97 mm7 Jan 1915 | 272 mm1936 · driest 6 mm in 1981 | 132 |
| February | 27.8°C28 Feb 1948 | -17.8°C1 Feb 1936 | 80 mm28 Feb 1929 | 222 mm1929 · driest 4 mm in 2024 | 134 |
| March | 33.9°C29 Mar 1907 | -16.7°C3 Mar 1980 | 107 mm4 Mar 1952 | 296 mm1952 · driest 10 mm in 2020 | 133 |
| April | 35.0°C26 Apr 1915 | -9.4°C11 Apr 1982 | 84 mm10 Apr 2003 | 271 mm2003 · driest 9 mm in 2024 | 133 |
| May | 38.9°C22 May 1941 | -4.4°C20 May 2007 | 119 mm30 May 1940 | 210 mm1975 · driest 1 mm in 2023 | 133 |
| June | 40.6°C19 Jun 1944 | 5.0°C11 Jun 1972 | 96 mm16 Jun 1979 | 253 mm1981 · driest 3 mm in 1986 | 132 |
| July | 40.6°C29 Jul 1952 | 9.4°C1 Jul 1919 | 111 mm14 Jul 1944 | 283 mm1916 · driest 11 mm in 2023 | 133 |
| August | 40.6°C27 Aug 1943 | 7.2°C29 Aug 1905 | 150 mm27 Aug 2008 | 349 mm1931 · driest 0 mm in 2022 | 131 |
| September | 39.4°C6 Sep 1954 | 1.1°C30 Sep 1942 | 110 mm19 Sep 1928 | 367 mm1928 · driest 0 mm in 2019 | 131 |
| October | 37.8°C5 Oct 1919 | -6.1°C29 Oct 2001 | 132 mm2 Oct 1929 | 356 mm1990 · driest 0 mm in 1920 | 131 |
| November | 30.6°C1 Nov 1950 | -11.7°C20 Nov 1914 | 76 mm7 Nov 1912 | 202 mm1957 · driest 1 mm in 2023 | 126 |
| December | 26.1°C19 Dec 1984 | -20.6°C31 Dec 1935 | 80 mm28 Dec 1958 | 207 mm1931 · driest 0 mm in 2023 | 132 |
| Month | Days 25°C+ | Days 30°C+ | Frost nights | Heavy rain (10 mm+) | Snow days |
|---|---|---|---|---|---|
| January | <1 | 0 | 19 | 3 | <1 |
| February | <1 | 0 | 15 | 3 | <1 |
| March | 3 | 0 | 8 | 4 | <1 |
| April | 11 | <1 | 1 | 3 | 0 |
| May | 22 | 6 | 0 | 2 | 0 |
| June | 28 | 17 | 0 | 3 | 0 |
| July | 30 | 24 | 0 | 3 | 0 |
| August | 29 | 20 | 0 | 3 | 0 |
| September | 23 | 8 | 0 | 3 | 0 |
| October | 9 | <1 | 1 | 2 | 0 |
| November | 1 | 0 | 10 | 2 | 0 |
| December | <1 | 0 | 17 | 3 | <1 |
The best month has moved. On the 1961–1990 numbers the strongest month here was September (scoring 80); on 2011–2025 it is May (90). 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 | 6% | 25% | 10% | 26% | 7.9–14.0°C |
| February | 10% | 25% | 12% | 28% | 9.2–15.7°C |
| March | 29% | 27% | 12% | 30% | 14.3–20.5°C |
| April | 59% | 24% | 10% | 24% | 20.7–25.0°C |
| May | 73% | 24% | 10% | 26% | 24.6–29.0°C |
| June | 74% | 26% | 11% | 29% | 28.6–32.5°C |
| July | 72% | 28% | 12% | 33% | 30.3–33.7°C |
| August | 76% | 25% | 11% | 26% | 29.4–33.0°C |
| September | 79% | 19% | 9% | 18% | 25.9–30.5°C |
| October | 65% | 17% | 8% | 13% | 20.5–24.4°C |
| November | 28% | 19% | 8% | 15% | 14.1–19.2°C |
| December | 6% | 23% | 10% | 23% | 9.1–14.5°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