April
April · October · May
United States · 1991–2020
April leads for comfortable weather in Mount Pleasant: typically 24.7°C by day, 10°C at night, with 114 mm of rain. Based on measured 1991–2020 NOAA station history.
April · October · May
August · July · June
November · March · April
The weakest month is January, scoring 29 against April’s 75 — days reach only 13.8°C, 10° below the 24°C the score treats as ideal, and nights drop to -0.1°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 | 13.8°C | -0.1°C | 93 mm | 5.5 | 10 h 11 | 29 | Strong coverage |
| February | 16°C | 1.8°C | 102 mm | 6.2 | 10 h 57 | 38 | Strong coverage |
| March | 20.5°C | 5.9°C | 108 mm | 6.2 | 11 h 53 | 59 | Strong coverage |
| April | 24.7°C | 10°C | 114 mm | 5.9 | 12 h 57 | 75 | Strong coverage |
| May | 28.8°C | 15.6°C | 125 mm | 6.1 | 13 h 51 | 67 | Strong coverage |
| June | 32.7°C | 20.2°C | 111 mm | 5.3 | 14 h 20 | 49 | Strong coverage |
| July | 34.8°C | 21.8°C | 71 mm | 3.8 | 14 h 08 | 46 | Strong coverage |
| August | 35.2°C | 21.3°C | 66 mm | 3.6 | 13 h 23 | 47 | Strong coverage |
| September | 32°C | 17.3°C | 91 mm | 3.9 | 12 h 20 | 61 | Strong coverage |
| October | 26.2°C | 10.5°C | 111 mm | 4.8 | 11 h 18 | 73 | Strong coverage |
| November | 19.7°C | 5°C | 94 mm | 4.6 | 10 h 24 | 58 | Strong coverage |
| December | 15.1°C | 1.2°C | 122 mm | 5.9 | 9 h 58 | 31 | 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 | 30.0°C24 Jan 1943 | -20.6°C12 Jan 1962 | 163 mm21 Jan 1923 | 287 mm1923 · driest 1 mm in 2003 | 107 |
| February | 32.8°C22 Feb 1996 | -24.4°C2 Feb 1951 | 130 mm4 Feb 1986 | 255 mm2001 · driest 0 mm in 1936 | 107 |
| March | 34.4°C22 Mar 2026 | -11.7°C3 Mar 1943 | 184 mm17 Mar 1987 | 435 mm1945 · driest 15 mm in 2007 | 109 |
| April | 36.1°C13 Apr 1936 | -5.0°C3 Apr 1936 | 133 mm27 Apr 1958 | 295 mm1958 · driest 4 mm in 1987 | 109 |
| May | 41.1°C22 May 2005 | 1.1°C4 May 1954 | 119 mm3 May 2009 | 416 mm1930 · driest 5 mm in 1988 | 108 |
| June | 41.7°C21 Jun 1936 | 8.9°C3 Jun 1970 | 181 mm12 Jun 1945 | 311 mm1992 · driest 0 mm in 1936 | 107 |
| July | 44.4°C21 Jul 2022 | 10.0°C5 Jul 1924 | 114 mm13 Jul 1926 | 320 mm1992 · driest 0 mm in 2008 | 108 |
| August | 47.8°C10 Aug 1936 | 8.9°C13 Aug 1967 | 159 mm15 Aug 2017 | 217 mm1996 · driest 0 mm in 1934 | 109 |
| September | 42.8°C2 Sep 1939 | 2.2°C22 Sep 1983 | 149 mm24 Sep 2018 | 366 mm1974 · driest 1 mm in 2021 | 107 |
| October | 40.0°C1 Oct 1938 | -5.0°C29 Oct 1952 | 139 mm19 Oct 1985 | 432 mm2009 · driest 0 mm in 2024 | 106 |
| November | 32.8°C13 Nov 1951 | -12.8°C29 Nov 1976 | 205 mm5 Nov 1994 | 326 mm2015 · driest 0 mm in 2007 | 108 |
| December | 31.1°C4 Dec 2005 | -18.9°C24 Dec 1989 | 164 mm13 Dec 2015 | 349 mm2015 · driest 3 mm in 1950 | 106 |
| Month | Days 25°C+ | Days 30°C+ | Frost nights | Heavy rain (10 mm+) |
|---|---|---|---|---|
| January | 1 | 0 | 18 | 3 |
| February | 3 | <1 | 12 | 3 |
| March | 8 | <1 | 6 | 4 |
| April | 17 | 3 | <1 | 3 |
| May | 27 | 14 | 0 | 3 |
| June | 29 | 26 | 0 | 3 |
| July | 31 | 30 | 0 | 2 |
| August | 31 | 29 | 0 | 2 |
| September | 28 | 23 | 0 | 2 |
| October | 20 | 8 | <1 | 3 |
| November | 6 | <1 | 8 | 3 |
| December | 2 | 0 | 16 | 4 |
The best month has moved. On the 1961–1990 numbers the strongest month here was April (scoring 81); on 2011–2025 it is October (76). 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 | 18% | 19% | 10% | 17% | 10.1–16.7°C |
| February | 27% | 22% | 11% | 21% | 12.0–19.5°C |
| March | 47% | 21% | 11% | 15% | 16.7–23.4°C |
| April | 68% | 22% | 12% | 20% | 22.1–26.5°C |
| May | 76% | 23% | 12% | 22% | 26.7–30.3°C |
| June | 82% | 18% | 10% | 15% | 31.1–34.7°C |
| July | 85% | 15% | 8% | 12% | 32.8–37.3°C |
| August | 86% | 14% | 7% | 12% | 32.9–37.6°C |
| September | 85% | 15% | 8% | 10% | 29.1–34.4°C |
| October | 78% | 16% | 9% | 14% | 24.4–29.2°C |
| November | 45% | 18% | 10% | 16% | 16.8–22.3°C |
| December | 21% | 20% | 10% | 18% | 12.0–17.5°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