United States · 1991–2020

Best time to visit
Chestnut Grove.

September leads for comfortable weather in Chestnut Grove: typically 26.2°C by day, 14.4°C at night, with 118 mm of rain. Based on measured 1991–2020 NOAA station history.

Best comfortSeptember

Typical high26.2°C

Typical low14.4°C

Rain in September118 mm

Comfort

September

September · May · June

77climate match

Beach

August

August · June · July

75climate match

Outdoors

April

April · October · May

77climate match

The weakest month is January, scoring 5 against September’s 77 — days reach only 7.7°C, 16° below the 24°C the score treats as ideal, and nights drop to -3.5°C.

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

57.7° / -3.5°

Feb

1610.1° / -2.3°

Mar

3014.4° / 1.1°

Apr

6120.5° / 6.3°

May

7424.4° / 11.5°

Jun

6828.6° / 16.6°

Jul

5530.6° / 18.7°

Aug

6429.7° / 18°

Sep

7726.2° / 14.4°

Oct

6320.7° / 7.6°

Nov

3314.4° / 2°

Dec

99.5° / -1.3°

Monthly climate evidence for Chestnut Grove — daylight is calculated from latitude, everything else is measured
Month	Day	Night	Rain	Wet days	Daylight	Comfort	Coverage
January	7.7°C	-3.5°C	88 mm	7.4	9 h 51	5	Strong coverage
February	10.1°C	-2.3°C	69 mm	6	10 h 45	16	Strong coverage
March	14.4°C	1.1°C	101 mm	8	11 h 51	30	Strong coverage
April	20.5°C	6.3°C	90 mm	7.8	13 h 06	61	Strong coverage
May	24.4°C	11.5°C	124 mm	9.8	14 h 09	74	Strong coverage
June	28.6°C	16.6°C	97 mm	8.6	14 h 44	68	Strong coverage
July	30.6°C	18.7°C	116 mm	8.8	14 h 30	55	Strong coverage
August	29.7°C	18°C	91 mm	7.4	13 h 36	64	Strong coverage
September	26.2°C	14.4°C	118 mm	6.9	12 h 23	77	Strong coverage
October	20.7°C	7.6°C	105 mm	6.8	11 h 10	63	Strong coverage
November	14.4°C	2°C	100 mm	6.6	10 h 06	33	Strong coverage
December	9.5°C	-1.3°C	99 mm	8	9 h 36	9	Strong coverage

What has changed

Chestnut Grove runs +0.6°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

+0.5

Feb

+2.0

Mar

+1.1

Apr

+1.0

May

+0.3

Jun

+0.7

Jul

+0.8

Aug

-0.1

Sep

+0.5

Oct

+0.6

Nov

-0.9

Dec

+0.9

September daytime highs, 2011–2025. Last recorded: 27.0°C.

Records at APPOMATTOX, 1961–2026
Month	Record high	Record low	Wettest day	Wettest / driest month	Years
January	25.6°C31 Jan 2002	-28.9°C20 Jan 1994	56 mm27 Jan 1998	186 mm1997 · driest 8 mm in 1981	65
February	26.7°C26 Feb 2000	-21.7°C4 Feb 1996	69 mm11 Feb 2018	182 mm2003 · driest 6 mm in 1978	64
March	31.7°C14 Mar 1990	-16.7°C4 Mar 2009	88 mm18 Mar 1990	277 mm1975 · driest 4 mm in 2006	64
April	33.9°C24 Apr 1985	-8.9°C7 Apr 2007	83 mm22 Apr 1992	184 mm1987 · driest 13 mm in 2006	63
May	35.0°C20 May 2026	-3.9°C16 May 1997	89 mm16 May 2014	289 mm1971 · driest 9 mm in 1994	63
June	37.2°C27 Jun 2024	1.7°C5 Jun 1993	174 mm22 Jun 1972	317 mm1972 · driest 4 mm in 2024	61
July	39.4°C22 Jul 1977	7.2°C1 Jul 1982	128 mm14 Jul 1975	310 mm2023 · driest 22 mm in 1977	61
August	39.4°C21 Aug 1983	6.7°C29 Aug 1965	164 mm18 Aug 1973	349 mm1985 · driest 17 mm in 1987	60
September	36.7°C12 Sep 1983	1.1°C24 Sep 1974	212 mm8 Sep 1987	381 mm1996 · driest 1 mm in 2005	62
October	35.6°C4 Oct 2019	-7.8°C28 Oct 2001	108 mm6 Oct 1972	273 mm1995 · driest 0 mm in 2000	61
November	28.3°C6 Nov 1961	-13.3°C18 Nov 2000	185 mm12 Nov 2020	331 mm1985 · driest 13 mm in 1981	65
December	26.1°C7 Dec 1998	-22.2°C26 Dec 1983	64 mm5 Dec 1993	211 mm2009 · driest 3 mm in 1965	65

Typical days per month at APPOMATTOX, 1991–2020
Month	Days 25°C+	Days 30°C+	Frost nights	Heavy rain (10 mm+)	Snow days
January	0	0	21	3	1
February	<1	0	19	3	<1
March	2	0	12	3	<1
April	7	1	2	3	<1
May	16	4	<1	4	0
June	25	12	0	3	0
July	29	19	0	4	0
August	28	15	0	3	0
September	19	6	0	3	0
October	7	<1	2	3	0
November	<1	0	11	3	0
December	<1	0	18	3	<1

The best month has moved. On the 1961–1990 numbers the strongest month here was September (scoring 83); on 2011–2025 it is May (81). Both are scored the same way, from the same station — only the climate underneath changed.

How often, not how much — every day in APPOMATTOX’s record sorted by what it was actually like, rather than averaged
Month	Warm & dry days	Wet days	Washouts	Week with 3+ wet days	Daytime mean has ranged
January	2%	25%	10%	25%	4.6–10.3°C
February	5%	26%	10%	28%	5.9–12.7°C
March	18%	28%	12%	31%	11.2–17.1°C
April	41%	26%	11%	26%	17.9–22.5°C
May	60%	30%	13%	34%	22.1–26.6°C
June	73%	26%	11%	28%	26.6–30.3°C
July	71%	30%	12%	35%	28.6–32.7°C
August	74%	26%	10%	26%	27.8–31.7°C
September	74%	22%	10%	21%	24.2–28.3°C
October	49%	21%	9%	21%	18.6–22.8°C
November	17%	23%	10%	21%	11.6–16.8°C
December	3%	24%	10%	27%	6.2–12.9°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.

1963Each stripe is one year’s mean temperature against the 50-year average. Warmest: 2024. Coolest: 1967.2025

The evidence behind this page

Nearby, measured,
and named.

Place identity: GeoNames 4752289
NOAA station: USC00440243 · APPOMATTOX
Station distance: 22.2 km from the place centre
Climate period: 1991–2020
Minimum month coverage: 25 usable years
Daylight: Calculated from latitude 37.42°, 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.

These places read the same station, so their numbers are identical — distance from APPOMATTOX is what differs

Appomattox→Concord→Pamplin→Appomattox (historical)→Bowler→Chap→

Or put two places side by side: Chestnut Grove vs Appomattox

Best time to visitChestnut Grove.