United States · 1991–2020

Best time to visit
Alledonia.

September leads for comfortable weather in Alledonia: typically 25.8°C by day, 13°C at night, with 101 mm of rain. Based on measured 1991–2020 NOAA station history.

Best comfortSeptember

Typical high25.8°C

Typical low13°C

Rain in September101 mm

Comfort

September

September · May · June

77climate match

Beach

August

August · July · June

71climate match

Outdoors

October

October · April · May

77climate match

The weakest month is January, scoring 5 against September’s 77 — days reach only 4°C, 20° 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

54° / -5.7°

Feb

55.9° / -4.8°

Mar

1511.3° / -0.7°

Apr

4718.5° / 4.5°

May

7223.6° / 10.5°

Jun

6727.9° / 15.4°

Jul

5930° / 17.8°

Aug

6529.3° / 17°

Sep

7725.8° / 13°

Oct

5819.3° / 6.5°

Nov

2512.6° / 1°

Dec

56.5° / -2.7°

Monthly climate evidence for Alledonia — daylight is calculated from latitude, everything else is measured
Month	Day	Night	Rain	Wet days	Daylight	Comfort	Coverage
January	4°C	-5.7°C	100 mm	10.8	9 h 38	5	Strong coverage
February	5.9°C	-4.8°C	78 mm	9.1	10 h 37	5	Strong coverage
March	11.3°C	-0.7°C	96 mm	9.9	11 h 49	15	Strong coverage
April	18.5°C	4.5°C	97 mm	11.2	13 h 12	47	Strong coverage
May	23.6°C	10.5°C	114 mm	11.5	14 h 21	72	Strong coverage
June	27.9°C	15.4°C	122 mm	10.7	14 h 59	67	Strong coverage
July	30°C	17.8°C	114 mm	9.3	14 h 44	59	Strong coverage
August	29.3°C	17°C	100 mm	7.9	13 h 44	65	Strong coverage
September	25.8°C	13°C	101 mm	8	12 h 24	77	Strong coverage
October	19.3°C	6.5°C	81 mm	8.5	11 h 05	58	Strong coverage
November	12.6°C	1°C	79 mm	9.2	9 h 55	25	Strong coverage
December	6.5°C	-2.7°C	95 mm	10.7	9 h 21	5	Strong coverage

What has changed

Alledonia runs +0.3°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

+0.2

Feb

+1.0

Mar

+0.1

Apr

-0.6

May

0.0

Jun

-0.2

Jul

+0.5

Aug

+0.1

Sep

+0.4

Oct

+0.4

Nov

0.0

Dec

+1.2

September daytime highs, 2011–2025. Last recorded: 27.3°C.

Records at MOUNDSVILLE, 1963–2026
Month	Record high	Record low	Wettest day	Wettest / driest month	Years
January	23.3°C14 Jan 2005	-28.9°C19 Jan 1994	64 mm12 Jan 2018	233 mm2005 · driest 19 mm in 1981	59
February	26.7°C21 Feb 2018	-26.1°C14 Feb 2016	57 mm13 Feb 1966	175 mm2018 · driest 13 mm in 1978	59
March	30.6°C23 Mar 2026	-19.4°C1 Mar 1980	54 mm27 Mar 2026	183 mm2026 · driest 21 mm in 2003	58
April	33.3°C29 Apr 1986	-11.7°C1 Apr 1964	74 mm16 Apr 2018	197 mm2011 · driest 17 mm in 2010	57
May	34.4°C31 May 2011	-3.9°C10 May 1966	64 mm6 May 1971	209 mm1968 · driest 36 mm in 1986	60
June	38.3°C30 Jun 2012	2.2°C8 Jun 1977	79 mm22 Jun 2021	264 mm1998 · driest 16 mm in 1966	60
July	40.6°C8 Jul 2012	6.7°C6 Jul 1979	86 mm2 Jul 1999	206 mm1980 · driest 34 mm in 2020	60
August	38.9°C27 Aug 2006	4.4°C29 Aug 1982	127 mm31 Aug 1975	297 mm1975 · driest 14 mm in 2025	59
September	36.1°C2 Sep 2018	-0.6°C27 Sep 1983	181 mm18 Sep 2004	318 mm2004 · driest 13 mm in 1985	60
October	33.9°C4 Oct 2019	-7.8°C24 Oct 1969	75 mm7 Oct 2019	180 mm2019 · driest 14 mm in 1963	59
November	27.8°C6 Nov 2024	-14.4°C30 Nov 1976	96 mm5 Nov 1985	406 mm1985 · driest 16 mm in 1976	57
December	25.6°C4 Dec 1982	-23.9°C25 Dec 1983	70 mm3 Dec 1991	197 mm2013 · driest 22 mm in 1965	60

Typical days per month at MOUNDSVILLE, 1991–2020
Month	Days 25°C+	Days 30°C+	Frost nights	Heavy rain (10 mm+)	Snow days
January	0	0	25	4	4
February	<1	0	23	3	3
March	<1	0	18	4	1
April	6	<1	6	3	<1
May	13	5	<1	4	0
June	24	11	0	4	0
July	29	17	0	4	0
August	28	14	0	3	0
September	18	6	0	3	0
October	6	<1	2	3	0
November	<1	0	14	3	<1
December	0	0	23	3	2

The best month has moved. On the 1961–1990 numbers the strongest month here was September (scoring 82); on 2011–2025 it is May (82). Both are scored the same way, from the same station — only the climate underneath changed.

How often, not how much — every day in MOUNDSVILLE’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%	34%	9%	45%	0.7–7.4°C
February	2%	32%	8%	40%	2.2–9.4°C
March	10%	34%	10%	46%	8.4–15.2°C
April	28%	38%	12%	51%	16.4–20.9°C
May	51%	36%	13%	48%	21.5–26.9°C
June	64%	34%	14%	44%	26.3–29.7°C
July	70%	30%	13%	34%	28.4–31.4°C
August	73%	27%	12%	29%	27.6–30.6°C
September	68%	27%	10%	30%	24.1–28.2°C
October	37%	28%	9%	31%	17.5–21.6°C
November	9%	34%	10%	44%	9.8–15.4°C
December	<1%	35%	9%	46%	2.9–9.6°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.

1964Each stripe is one year’s mean temperature against the 51-year average. Warmest: 1998. Coolest: 1976.2025

The evidence behind this page

Nearby, measured,
and named.

Place identity: GeoNames 4505128
NOAA station: USC00466248 · MOUNDSVILLE
Station distance: 18.3 km from the place centre
Climate period: 1991–2020
Minimum month coverage: 28 usable years
Daylight: Calculated from latitude 39.90°, 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 MOUNDSVILLE is what differs

Moundsville→Shadyside→Powhatan Point→Glendale→Cameron→Armstrongs Mills→

Or put two places side by side: Alledonia vs Moundsville

Best time to visitAlledonia.