United States · 1991–2020

Best time to visit
Colesville.

May leads for comfortable weather in Colesville: typically 23.6°C by day, 12.1°C at night, with 108 mm of rain. Based on measured 1991–2020 NOAA station history.

Best comfortMay

Typical high23.6°C

Typical low12.1°C

Rain in May108 mm

Comfort

May

May · September · June

78climate match

Beach

August

August · July · June

76climate match

Outdoors

October

October · April · May

81climate match

The weakest month is January, scoring 5 against May’s 78 — days reach only 6°C, 18° 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

56° / -3.8°

Feb

77.7° / -2.8°

Mar

2212° / 1.1°

Apr

5418.5° / 6.5°

May

7823.6° / 12.1°

Jun

6628.4° / 17.1°

Jul

5330.7° / 19.7°

Aug

6129.9° / 18.9°

Sep

7726.3° / 15.2°

Oct

6119.9° / 8.1°

Nov

3513.7° / 2.5°

Dec

68.1° / -1.4°

Monthly climate evidence for Colesville — daylight is calculated from latitude, everything else is measured
Month	Day	Night	Rain	Wet days	Daylight	Comfort	Coverage
January	6°C	-3.8°C	73 mm	8.2	9 h 42	5	Strong coverage
February	7.7°C	-2.8°C	61 mm	6.9	10 h 40	7	Strong coverage
March	12°C	1.1°C	96 mm	8.3	11 h 50	22	Strong coverage
April	18.5°C	6.5°C	86 mm	8.5	13 h 10	54	Strong coverage
May	23.6°C	12.1°C	108 mm	9.2	14 h 17	78	Strong coverage
June	28.4°C	17.1°C	110 mm	8.7	14 h 54	66	Strong coverage
July	30.7°C	19.7°C	114 mm	8.7	14 h 39	53	Strong coverage
August	29.9°C	18.9°C	96 mm	7.6	13 h 41	61	Strong coverage
September	26.3°C	15.2°C	116 mm	7.4	12 h 24	77	Strong coverage
October	19.9°C	8.1°C	99 mm	6.9	11 h 06	61	Strong coverage
November	13.7°C	2.5°C	73 mm	6.6	9 h 59	35	Strong coverage
December	8.1°C	-1.4°C	89 mm	8.2	9 h 26	6	Strong coverage

What has changed

Colesville runs +0.8°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

+1.2

Feb

+2.1

Mar

+0.6

Apr

+1.1

May

+0.5

Jun

+0.5

Jul

+1.0

Aug

0.0

Sep

+0.4

Oct

+0.7

Nov

+0.1

Dec

+1.9

May daytime highs, 2011–2025. Last recorded: 23.4°C.

Records at BELTSVILLE, 1941–2026
Month	Record high	Record low	Wettest day	Wettest / driest month	Years
January	25.6°C27 Jan 1950	-26.1°C18 Jan 1957	72 mm4 Jan 1988	226 mm1979 · driest 5 mm in 1955	78
February	26.1°C22 Feb 2018	-24.4°C10 Feb 1979	54 mm23 Feb 2003	160 mm2003 · driest 7 mm in 2009	78
March	31.1°C13 Mar 1990	-18.3°C11 Mar 1960	79 mm20 Mar 1958	217 mm1994 · driest 1 mm in 2006	78
April	34.4°C19 Apr 1976	-9.4°C2 Apr 1989	60 mm16 Apr 2014	195 mm1983 · driest 14 mm in 1942	82
May	35.6°C20 May 2026	-3.3°C17 May 1956	109 mm26 May 2009	237 mm1989 · driest 18 mm in 1986	84
June	37.8°C30 Jun 2012	2.8°C11 Jun 1972	121 mm26 Jun 2006	292 mm2015 · driest 18 mm in 1967	84
July	39.4°C17 Jul 1988	7.2°C1 Jul 1988	116 mm14 Jul 1975	394 mm1945 · driest 13 mm in 1966	84
August	38.9°C1 Aug 1954	3.3°C29 Aug 1982	238 mm13 Aug 1955	410 mm1955 · driest 1 mm in 1962	83
September	38.3°C1 Sep 1953	-1.7°C30 Sep 1942	130 mm26 Sep 1975	392 mm1975 · driest 5 mm in 2005	83
October	36.7°C5 Oct 1941	-6.7°C24 Oct 1969	141 mm8 Oct 2005	255 mm2005 · driest 1 mm in 1963	84
November	29.4°C2 Nov 1950	-11.1°C28 Nov 1951	104 mm28 Nov 1993	193 mm2018 · driest 9 mm in 2016	84
December	28.3°C9 Dec 1943	-21.1°C23 Dec 1960	85 mm18 Dec 1977	194 mm1977 · driest 3 mm in 1955	77

Typical days per month at BELTSVILLE, 1991–2020
Month	Days 25°C+	Days 30°C+	Frost nights	Heavy rain (10 mm+)	Snow days
January	0	0	24	3	2
February	<1	0	21	2	2
March	<1	0	14	3	1
April	5	<1	3	3	<1
May	14	4	0	3	0
June	24	12	0	4	0
July	30	20	0	3	0
August	29	17	0	3	0
September	20	7	0	3	0
October	5	<1	1	3	0
November	<1	0	10	2	<1
December	0	0	21	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 (83). Both are scored the same way, from the same station — only the climate underneath changed.

How often, not how much — every day in BELTSVILLE’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%	9%	26%	2.6–8.6°C
February	2%	25%	8%	28%	3.8–10.4°C
March	11%	26%	10%	30%	9.3–14.7°C
April	31%	27%	9%	31%	16.1–20.7°C
May	56%	31%	12%	39%	21.5–25.5°C
June	72%	27%	11%	28%	26.8–29.7°C
July	73%	27%	11%	30%	28.9–32.3°C
August	75%	25%	10%	26%	28.2–31.2°C
September	72%	23%	9%	24%	24.6–28.1°C
October	43%	22%	9%	20%	17.9–22.1°C
November	13%	23%	8%	21%	11.4–16.3°C
December	2%	24%	10%	25%	4.8–10.9°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.

1948Each stripe is one year’s mean temperature against the 74-year average. Warmest: 2024. Coolest: 1963.2025

The evidence behind this page

Nearby, measured,
and named.

Place identity: GeoNames 4351951
NOAA station: USC00180700 · BELTSVILLE
Station distance: 7.9 km from the place centre
Climate period: 1991–2020
Minimum month coverage: 27 usable years
Daylight: Calculated from latitude 39.08°, 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 BELTSVILLE is what differs

Silver Spring→College Park→Greenbelt→Langley Park→Calverton→White Oak→

Or put two places side by side: Colesville vs Silver Spring

Best time to visitColesville.

May

August

October

The whole year,without the guesswork.

Colesville runs +0.8°Con the 1961–1990 baseline.

Nearby, measured,and named.

Best time to visit
Colesville.

The whole year,
without the guesswork.

Colesville runs +0.8°C
on the 1961–1990 baseline.

Nearby, measured,
and named.