September
September · June · August
79climate match
United States · 1991–2020
Best time to visit
Richmond.
September leads for comfortable weather in Richmond: typically 26°C by day, 7.9°C at night, with 37 mm of rain. Based on measured 1991–2020 NOAA station history.
Best comfortSeptember
Typical high26°C
Typical low7.9°C
Rain in September37 mm
August
August · July · June
68climate match
May
May · September · June
77climate match
The weakest month is January, scoring 5 against September’s 79 — days reach only 0.3°C, 24° below the 24°C the score treats as ideal.
Month by month
The whole year,
without the guesswork.
The bars show the comfort score. Day and night temperatures come from daily observed highs and lows; rain is the historical monthly estimate.
Jan
50.3° / -8.7°
Feb
53.5° / -6.8°
Mar
1710.4° / -1.9°
Apr
3715.3° / 1.1°
May
6220.8° / 5.1°
Jun
7827° / 9°
Jul
6832.8° / 13.2°
Aug
7031.8° / 12.7°
Sep
7926° / 7.9°
Oct
5117.3° / 2.3°
Nov
118.2° / -3.2°
Dec
50.9° / -8°
| Month | Day | Night | Rain | Wet days | Daylight | Comfort | Coverage |
|---|---|---|---|---|---|---|---|
| January | 0.3°C | -8.7°C | 50 mm | 8.6 | 9 h 26 | 5 | Strong coverage |
| February | 3.5°C | -6.8°C | 46 mm | 7.9 | 10 h 31 | 5 | Strong coverage |
| March | 10.4°C | -1.9°C | 54 mm | 8.3 | 11 h 48 | 17 | Strong coverage |
| April | 15.3°C | 1.1°C | 62 mm | 8.8 | 13 h 17 | 37 | Strong coverage |
| May | 20.8°C | 5.1°C | 65 mm | 8.9 | 14 h 32 | 62 | Strong coverage |
| June | 27°C | 9°C | 32 mm | 4.1 | 15 h 13 | 78 | Strong coverage |
| July | 32.8°C | 13.2°C | 15 mm | 2.8 | 14 h 56 | 68 | Strong coverage |
| August | 31.8°C | 12.7°C | 19 mm | 3.1 | 13 h 52 | 70 | Strong coverage |
| September | 26°C | 7.9°C | 37 mm | 4.6 | 12 h 26 | 79 | Strong coverage |
| October | 17.3°C | 2.3°C | 46 mm | 5.9 | 11 h 00 | 51 | Strong coverage |
| November | 8.2°C | -3.2°C | 39 mm | 6.7 | 9 h 45 | 11 | Strong coverage |
| December | 0.9°C | -8°C | 47 mm | 8.8 | 9 h 08 | 5 | Strong coverage |
What has changed
Richmond runs +0.4°C
on the 1961–1990 baseline.
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.
Jan
0.0
Feb
0.0
Mar
+1.4
Apr
-0.4
May
-0.6
Jun
+1.0
Jul
+0.4
Aug
0.0
Sep
+1.1
Oct
-0.4
Nov
+0.9
Dec
+0.8
| Month | Record high | Record low | Wettest day | Wettest / driest month | Years |
|---|---|---|---|---|---|
| January | 15.6°C31 Jan 2003 | -30.6°C18 Jan 1984 | 35 mm14 Jan 1980 | 130 mm2017 · driest 1 mm in 1961 | 77 |
| February | 18.9°C5 Feb 1963 | -32.8°C1 Feb 1985 | 41 mm17 Feb 1986 | 124 mm2017 · driest 3 mm in 2002 | 77 |
| March | 26.1°C21 Mar 2026 | -21.7°C4 Mar 1966 | 33 mm9 Mar 2006 | 127 mm1982 · driest 3 mm in 1956 | 77 |
| April | 31.7°C27 Apr 1987 | -11.1°C5 Apr 1955 | 60 mm28 Apr 2005 | 171 mm2005 · driest 12 mm in 1992 | 76 |
| May | 36.1°C29 May 2003 | -6.7°C1 May 1972 | 34 mm18 May 1996 | 149 mm2015 · driest 3 mm in 1972 | 77 |
| June | 38.3°C28 Jun 2015 | -1.7°C10 Jun 2002 | 60 mm7 Jun 1964 | 124 mm1964 · driest 1 mm in 2013 | 75 |
| July | 42.8°C19 Jul 2003 | 2.2°C1 Jul 1968 | 42 mm12 Jul 1997 | 75 mm1983 · driest 0 mm in 2025 | 76 |
| August | 40.0°C1 Aug 2000 | -0.6°C31 Aug 1965 | 83 mm18 Aug 1977 | 121 mm1968 · driest 0 mm in 2002 | 77 |
| September | 37.8°C7 Sep 2022 | -6.7°C18 Sep 1965 | 58 mm26 Sep 1982 | 138 mm1982 · driest 0 mm in 2018 | 77 |
| October | 31.1°C1 Oct 1992 | -16.1°C30 Oct 2019 | 46 mm15 Oct 1968 | 131 mm2004 · driest 0 mm in 1978 | 77 |
| November | 22.2°C6 Nov 1999 | -28.9°C16 Nov 1955 | 35 mm14 Nov 1958 | 100 mm1965 · driest 0 mm in 1976 | 76 |
| December | 19.4°C1 Dec 1995 | -33.3°C23 Dec 1990 | 44 mm16 Dec 2016 | 149 mm1983 · driest 1 mm in 1976 | 77 |
| Month | Days 25°C+ | Days 30°C+ | Frost nights | Heavy rain (10 mm+) | Snow days |
|---|---|---|---|---|---|
| January | 0 | 0 | 29 | 1 | 6 |
| February | 0 | 0 | 26 | 1 | 5 |
| March | 0 | 0 | 22 | 2 | 4 |
| April | 1 | 0 | 12 | 2 | 2 |
| May | 8 | 1 | 3 | 2 | <1 |
| June | 22 | 10 | <1 | 1 | 0 |
| July | 30 | 26 | 0 | <1 | 0 |
| August | 30 | 24 | 0 | <1 | 0 |
| September | 20 | 7 | <1 | 1 | 0 |
| October | 3 | <1 | 10 | 2 | <1 |
| November | 0 | 0 | 23 | <1 | 3 |
| December | 0 | 0 | 29 | 1 | 6 |
| Month | Warm & dry days | Wet days | Washouts | Week with 3+ wet days | Daytime mean has ranged |
|---|---|---|---|---|---|
| January | 0% | 28% | 4% | 33% | -2.8–4.0°C |
| February | 0% | 28% | 4% | 34% | -0.1–6.6°C |
| March | 4% | 28% | 5% | 33% | 6.4–12.9°C |
| April | 20% | 29% | 6% | 33% | 12.2–18.1°C |
| May | 53% | 25% | 6% | 29% | 18.2–23.2°C |
| June | 81% | 16% | 3% | 13% | 24.0–29.9°C |
| July | 91% | 10% | 1% | 5% | 30.4–34.5°C |
| August | 89% | 11% | 2% | 7% | 29.7–33.3°C |
| September | 77% | 16% | 4% | 15% | 22.8–28.0°C |
| October | 37% | 19% | 5% | 18% | 14.6–20.7°C |
| November | 1% | 22% | 4% | 25% | 4.8–11.2°C |
| December | 0% | 27% | 4% | 31% | -1.5–4.3°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
Nearby, measured,
and named.
- Place identity
- GeoNames 5780388
- NOAA station
- USC00427271 · RICHMOND
- Station distance
- 1.8 km from the place centre
- Climate period
- 1991–2020
- Minimum month coverage
- 28 usable years
- Daylight
- Calculated from latitude 41.92°, mid-month, sunrise to sunset including refraction. Not a station measurement.
- Important limit
- Historical climate is not a forecast. Nearby stations can miss mountains, coasts, and local microclimates.