September
September · October · May
United States · 1991–2020
September leads for comfortable weather in Southside: typically 28.7°C by day, 15.4°C at night, with 87 mm of rain. Based on measured 1991–2020 NOAA station history.
September · October · May
June · August · July
October · April · March
The weakest month is January, scoring 8 against September’s 74 — days reach only 9°C, 15° below the 24°C the score treats as ideal, and nights drop to -2.4°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 | 9°C | -2.4°C | 91 mm | 7.2 | 9 h 59 | 8 | Strong coverage |
| February | 11.4°C | -1°C | 92 mm | 7.2 | 10 h 50 | 18 | Strong coverage |
| March | 16.2°C | 3.3°C | 115 mm | 9.3 | 11 h 51 | 36 | Strong coverage |
| April | 21.8°C | 8.5°C | 139 mm | 7.8 | 13 h 03 | 62 | Strong coverage |
| May | 26.2°C | 14°C | 128 mm | 9.2 | 14 h 02 | 72 | Strong coverage |
| June | 30.6°C | 18.4°C | 97 mm | 6.9 | 14 h 34 | 60 | Strong coverage |
| July | 32.8°C | 20.6°C | 105 mm | 6.9 | 14 h 21 | 48 | Strong coverage |
| August | 32.5°C | 19.7°C | 87 mm | 6.7 | 13 h 30 | 53 | Strong coverage |
| September | 28.7°C | 15.4°C | 87 mm | 5.9 | 12 h 22 | 74 | Strong coverage |
| October | 22.7°C | 9.1°C | 96 mm | 6.9 | 11 h 13 | 73 | Strong coverage |
| November | 15.8°C | 3.2°C | 128 mm | 7.4 | 10 h 14 | 35 | Strong coverage |
| December | 10.4°C | -0.8°C | 121 mm | 7.6 | 9 h 45 | 11 | 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 | 25.6°C7 Jan 2026 | -23.9°C11 Jan 1977 | 127 mm11 Jan 2020 | 211 mm2007 · driest 2 mm in 2026 | 74 |
| February | 29.4°C13 Feb 1962 | -26.1°C2 Feb 1951 | 96 mm9 Feb 2023 | 327 mm2018 · driest 19 mm in 1963 | 74 |
| March | 33.3°C22 Mar 2026 | -12.8°C4 Mar 2014 | 114 mm9 Mar 1994 | 250 mm2023 · driest 21 mm in 1995 | 74 |
| April | 34.4°C18 Apr 2006 | -5.0°C11 Apr 1973 | 193 mm28 Apr 2014 | 417 mm1973 · driest 15 mm in 1987 | 73 |
| May | 36.7°C30 May 2012 | -1.1°C1 May 1960 | 109 mm21 May 2011 | 307 mm1961 · driest 17 mm in 2005 | 73 |
| June | 43.3°C29 Jun 2012 | 5.0°C3 Jun 1969 | 108 mm24 Jun 2007 | 231 mm1999 · driest 6 mm in 1966 | 74 |
| July | 44.4°C31 Jul 1980 | 8.9°C6 Jul 1972 | 147 mm1 Jul 2007 | 230 mm1992 · driest 13 mm in 1993 | 75 |
| August | 43.9°C4 Aug 2011 | 7.2°C28 Aug 1967 | 149 mm10 Aug 2023 | 259 mm2016 · driest 3 mm in 2025 | 73 |
| September | 41.1°C4 Sep 2000 | -0.6°C29 Sep 1967 | 155 mm9 Sep 2007 | 266 mm1968 · driest 0 mm in 2004 | 74 |
| October | 36.7°C2 Oct 1954 | -6.7°C29 Oct 1952 | 115 mm30 Oct 2009 | 382 mm1984 · driest 0 mm in 2024 | 73 |
| November | 30.0°C4 Nov 2016 | -12.8°C29 Nov 1976 | 131 mm1 Nov 2018 | 343 mm2011 · driest 10 mm in 1954 | 73 |
| December | 27.2°C3 Dec 2021 | -21.1°C25 Dec 1983 | 135 mm28 Dec 2015 | 334 mm1982 · driest 1 mm in 2025 | 74 |
| Month | Days 25°C+ | Days 30°C+ | Frost nights | Heavy rain (10 mm+) | Snow days |
|---|---|---|---|---|---|
| January | 0 | 0 | 21 | 3 | <1 |
| February | <1 | 0 | 17 | 3 | <1 |
| March | 3 | 0 | 9 | 4 | <1 |
| April | 9 | <1 | 1 | 4 | 0 |
| May | 21 | 6 | 0 | 4 | 0 |
| June | 28 | 20 | 0 | 3 | 0 |
| July | 30 | 26 | 0 | 3 | 0 |
| August | 30 | 24 | 0 | 3 | 0 |
| September | 25 | 13 | 0 | 3 | 0 |
| October | 12 | 2 | 1 | 3 | 0 |
| November | 1 | 0 | 9 | 4 | <1 |
| December | 0 | 0 | 19 | 4 | <1 |
| Month | Warm & dry days | Wet days | Washouts | Week with 3+ wet days | Daytime mean has ranged |
|---|---|---|---|---|---|
| January | 4% | 25% | 10% | 25% | 6.0–12.3°C |
| February | 11% | 27% | 11% | 30% | 7.6–14.9°C |
| March | 27% | 29% | 13% | 33% | 13.0–19.9°C |
| April | 55% | 29% | 14% | 32% | 20.0–25.3°C |
| May | 69% | 30% | 13% | 33% | 24.4–28.9°C |
| June | 78% | 24% | 10% | 26% | 29.3–33.8°C |
| July | 77% | 24% | 10% | 23% | 31.4–35.7°C |
| August | 79% | 23% | 10% | 24% | 31.0–35.4°C |
| September | 79% | 22% | 10% | 19% | 26.9–31.9°C |
| October | 63% | 20% | 9% | 21% | 21.3–25.5°C |
| November | 26% | 24% | 12% | 22% | 13.1–18.9°C |
| December | 5% | 25% | 11% | 28% | 8.1–12.9°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