United States · 1991–2020

Best time to visit
Clarksburg.

September leads for comfortable weather in Clarksburg: typically 26.9°C by day, 13.8°C at night, with 73 mm of rain. Based on measured 1991–2020 NOAA station history.

Best comfortSeptember

Typical high26.9°C

Typical low13.8°C

Rain in September73 mm

Comfort

September

September · May · June

80climate match

Beach

August

August · July · June

77climate match

Outdoors

October

October · April · September

79climate match

The weakest month is January, scoring 5 against September’s 80 — days reach only 2.5°C, 21° 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

52.5° / -7.1°

Feb

55.2° / -4.9°

Mar

2111.1° / 0.1°

Apr

4918.2° / 6.2°

May

7523.5° / 12.5°

Jun

6528.3° / 17.5°

Jul

6030.2° / 19.1°

Aug

6529.6° / 18.2°

Sep

8026.9° / 13.8°

Oct

5919.7° / 7.3°

Nov

2411.9° / 1°

Dec

54.9° / -4.2°

Monthly climate evidence for Clarksburg — daylight is calculated from latitude, everything else is measured
Month	Day	Night	Rain	Wet days	Daylight	Comfort	Coverage
January	2.5°C	-7.1°C	69 mm	6.7	9 h 41	5	Good coverage
February	5.2°C	-4.9°C	64 mm	6.8	10 h 39	5	Good coverage
March	11.1°C	0.1°C	73 mm	7.8	11 h 49	21	Good coverage
April	18.2°C	6.2°C	109 mm	9	13 h 11	49	Good coverage
May	23.5°C	12.5°C	120 mm	11	14 h 18	75	Good coverage
June	28.3°C	17.5°C	119 mm	8.5	14 h 55	65	Good coverage
July	30.2°C	19.1°C	95 mm	7.1	14 h 41	60	Strong coverage
August	29.6°C	18.2°C	87 mm	6.5	13 h 42	65	Good coverage
September	26.9°C	13.8°C	73 mm	6	12 h 24	80	Good coverage
October	19.7°C	7.3°C	95 mm	7.6	11 h 06	59	Good coverage
November	11.9°C	1°C	86 mm	7.3	9 h 58	24	Strong coverage
December	4.9°C	-4.2°C	71 mm	6.7	9 h 25	5	Good coverage

Records at SHELBYVILLE DAM, 1973–2026
Month	Record high	Record low	Wettest day	Wettest / driest month	Years
January	20.0°C7 Jan 2008	-29.4°C17 Jan 1977	89 mm11 Jan 2020	175 mm2005 · driest 1 mm in 1986	42
February	23.9°C27 Feb 2024	-27.8°C10 Feb 1982	72 mm21 Feb 2018	112 mm2008 · driest 3 mm in 2017	40
March	30.6°C23 Mar 2026	-19.4°C2 Mar 2015	62 mm31 Mar 2022	158 mm1977 · driest 13 mm in 1999	39
April	31.7°C29 Apr 1987	-6.1°C7 Apr 1982	87 mm19 Apr 2013	229 mm2011 · driest 22 mm in 1976	42
May	35.0°C29 May 2018	-1.1°C4 May 1976	86 mm26 May 2011	292 mm2002 · driest 11 mm in 1987	42
June	40.0°C25 Jun 1988	6.1°C1 Jun 1983	102 mm9 Jun 2026	286 mm2010 · driest 11 mm in 1984	39
July	39.4°C26 Jul 2012	11.1°C1 Jul 1976	132 mm28 Jul 1979	261 mm1979 · driest 11 mm in 2012	41
August	38.3°C17 Aug 1988	5.6°C29 Aug 1986	78 mm16 Aug 2016	258 mm2016 · driest 8 mm in 2013	40
September	36.7°C2 Sep 2011	0.6°C22 Sep 1983	102 mm1 Sep 2003	197 mm2003 · driest 3 mm in 2004	42
October	33.3°C2 Oct 2019	-6.1°C23 Oct 1976	116 mm5 Oct 2000	202 mm2009 · driest 6 mm in 2024	44
November	26.7°C3 Nov 2016	-15.6°C13 Nov 2019	66 mm25 Nov 2010	179 mm1988 · driest 12 mm in 2023	41
December	22.2°C7 Dec 1998	-26.1°C24 Dec 1983	114 mm27 Dec 2015	227 mm2015 · driest 0 mm in 1979	42

Typical days per month at SHELBYVILLE DAM, 1991–2020
Month	Days 25°C+	Days 30°C+	Frost nights	Heavy rain (10 mm+)	Snow days
January	0	0	25	2	1
February	0	0	22	2	1
March	1	0	17	3	<1
April	4	<1	4	4	<1
May	14	3	<1	4	0
June	26	12	0	4	0
July	29	18	0	3	0
August	29	15	0	3	0
September	20	8	0	2	0
October	7	1	3	3	0
November	<1	0	13	3	<1
December	0	0	23	2	1

How often, not how much — every day in SHELBYVILLE DAM’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	<1%	20%	6%	15%	-2.0–5.9°C
February	2%	23%	6%	21%	-0.4–9.2°C
March	11%	27%	10%	31%	8.4–15.2°C
April	29%	32%	12%	40%	15.1–21.1°C
May	55%	33%	11%	41%	21.1–26.4°C
June	72%	27%	12%	28%	26.9–30.2°C
July	76%	23%	11%	21%	28.4–32.3°C
August	78%	22%	9%	21%	28.0–31.6°C
September	77%	21%	8%	19%	24.8–28.8°C
October	39%	23%	9%	25%	17.6–22.3°C
November	10%	25%	10%	25%	7.8–14.4°C
December	<1%	21%	7%	19%	1.7–8.2°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.

1979Each stripe is one year’s mean temperature against the 27-year average. Warmest: 2012. Coolest: 1979.2025

The evidence behind this page

Nearby, measured,
and named.

Place identity: GeoNames 4235969
NOAA station: USC00117876 · SHELBYVILLE DAM
Station distance: 9.1 km from the place centre
Climate period: 1991–2020
Minimum month coverage: 23 usable years
Daylight: Calculated from latitude 39.33°, 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 SHELBYVILLE DAM is what differs

Shelbyville→Findlay→Cowden→Westervelt→Clarksburg→Duvall→

Or put two places side by side: Clarksburg vs Shelbyville

Best time to visitClarksburg.