United States · 1991–2020

Best time to visit
Nelsonville (historical).

September leads for comfortable weather in Nelsonville (historical): typically 23.6°C by day, 9.9°C at night, with 98 mm of rain. Based on measured 1991–2020 NOAA station history.

Best comfortSeptember

Typical high23.6°C

Typical low9.9°C

Rain in September98 mm

Comfort

September

September · August · July

77climate match

Beach

July

July · August · June

65climate match

Outdoors

September

September · May · October

72climate match

The weakest month is January, scoring 5 against September’s 77 — days reach only -3°C, 27° 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

5-3° / -14.1°

Feb

50.1° / -12°

Mar

57.3° / -5.4°

Apr

3515.7° / 1°

May

6422.4° / 7.6°

Jun

6627.1° / 13.3°

Jul

6729.3° / 15.4°

Aug

6828° / 14.3°

Sep

7723.6° / 9.9°

Oct

4516.1° / 3°

Nov

56.9° / -3.5°

Dec

5-0.3° / -10.1°

Monthly climate evidence for Nelsonville (historical) — daylight is calculated from latitude, everything else is measured
Month	Day	Night	Rain	Wet days	Daylight	Comfort	Coverage
January	-3°C	-14.1°C	28 mm	6.1	9 h 10	5	Strong coverage
February	0.1°C	-12°C	29 mm	5.5	10 h 21	5	Strong coverage
March	7.3°C	-5.4°C	54 mm	6.9	11 h 46	5	Strong coverage
April	15.7°C	1°C	86 mm	9.3	13 h 24	35	Strong coverage
May	22.4°C	7.6°C	108 mm	10.4	14 h 47	64	Strong coverage
June	27.1°C	13.3°C	133 mm	10.8	15 h 33	66	Strong coverage
July	29.3°C	15.4°C	105 mm	8.9	15 h 15	67	Strong coverage
August	28°C	14.3°C	124 mm	9.1	14 h 03	68	Strong coverage
September	23.6°C	9.9°C	98 mm	7.8	12 h 28	77	Strong coverage
October	16.1°C	3°C	61 mm	7.3	10 h 53	45	Strong coverage
November	6.9°C	-3.5°C	50 mm	6	9 h 31	5	Strong coverage
December	-0.3°C	-10.1°C	36 mm	6.5	8 h 50	5	Strong coverage

What has changed

Nelsonville (historical) runs +1.9°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

+2.5

Feb

+1.1

Mar

+3.0

Apr

-0.1

May

+1.7

Jun

+2.3

Jul

+1.8

Aug

+1.6

Sep

+3.4

Oct

+1.1

Nov

+1.9

Dec

+2.9

September daytime highs, 2011–2025. Last recorded: 25.4°C.

Records at MONDOVI, 1908–2026
Month	Record high	Record low	Wettest day	Wettest / driest month	Years
January	13.9°C31 Jan 2024	-42.8°C30 Jan 1951	41 mm21 Jan 1917	105 mm1967 · driest 0 mm in 1948	112
February	18.9°C26 Feb 2024	-41.7°C16 Feb 1936	42 mm29 Feb 2012	101 mm2019 · driest 0 mm in 1947	115
March	28.9°C26 Mar 2007	-36.7°C1 Mar 1962	48 mm31 Mar 1993	139 mm1920 · driest 0 mm in 1910	112
April	33.3°C26 Apr 1939	-20.6°C1 Apr 1924	74 mm9 Apr 1980	189 mm1999 · driest 4 mm in 1947	113
May	42.2°C31 May 1934	-7.8°C3 May 2005	80 mm23 May 1975	222 mm2013 · driest 0 mm in 1963	115
June	38.9°C1 Jun 1934	-1.7°C4 Jun 1945	121 mm26 Jun 1920	281 mm1925 · driest 8 mm in 1910	114
July	43.3°C14 Jul 1936	2.2°C26 Jul 1946	107 mm27 Jul 2011	252 mm1987 · driest 0 mm in 1936	116
August	40.0°C24 Aug 1948	0.0°C21 Aug 2004	152 mm11 Aug 2016	308 mm2016 · driest 9 mm in 1963	110
September	38.3°C7 Sep 1978	-6.1°C25 Sep 1947	160 mm16 Sep 1992	270 mm1986 · driest 2 mm in 1945	109
October	35.6°C3 Oct 1938	-13.3°C30 Oct 1925	79 mm15 Oct 1966	202 mm1911 · driest 0 mm in 1952	110
November	26.1°C3 Nov 2020	-25.0°C26 Nov 1991	105 mm1 Nov 1991	243 mm1991 · driest 0 mm in 1935	110
December	18.3°C1 Dec 1998	-38.9°C19 Dec 1983	54 mm14 Dec 2015	111 mm2015 · driest 0 mm in 1980	115

Typical days per month at MONDOVI, 1991–2020
Month	Days 25°C+	Days 30°C+	Frost nights	Heavy rain (10 mm+)	Snow days
January	0	0	31	<1	9
February	0	0	27	<1	8
March	<1	0	25	2	5
April	3	<1	14	3	2
May	10	2	3	4	<1
June	23	7	0	4	0
July	28	14	0	3	0
August	27	9	0	4	0
September	14	3	1	3	0
October	3	<1	11	2	<1
November	<1	0	22	2	4
December	0	0	29	<1	9

The best month has moved. On the 1961–1990 numbers the strongest month here was June (scoring 80); on 2011–2025 it is September (82). Both are scored the same way, from the same station — only the climate underneath changed.

How often, not how much — every day in MONDOVI’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	0%	17%	2%	11%	-8.9–0.0°C
February	0%	15%	3%	10%	-4.9–3.2°C
March	3%	20%	6%	18%	1.2–10.7°C
April	20%	27%	8%	32%	11.0–18.4°C
May	48%	30%	11%	35%	18.8–24.8°C
June	64%	31%	13%	36%	23.8–29.0°C
July	74%	25%	11%	25%	26.5–31.3°C
August	73%	26%	11%	24%	25.4–29.9°C
September	54%	25%	10%	26%	20.3–25.9°C
October	26%	20%	6%	18%	12.9–18.9°C
November	2%	18%	6%	16%	2.3–9.7°C
December	0%	18%	3%	12%	-5.9–2.2°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.

1909Each stripe is one year’s mean temperature against the 86-year average. Warmest: 2012. Coolest: 1917.2024

The evidence behind this page

Nearby, measured,
and named.

Place identity: GeoNames 5264300
NOAA station: USC00475563 · MONDOVI
Station distance: 12.8 km from the place centre
Climate period: 1991–2020
Minimum month coverage: 29 usable years
Daylight: Calculated from latitude 44.65°, 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 MONDOVI is what differs

Mondovi→Strum→Eleva→Gilmanton→Lookout→Modena→

Or put two places side by side: Nelsonville (historical) vs Mondovi

Best time to visitNelsonville (historical).

September

July

September

The whole year,without the guesswork.

Nelsonville (historical) runs +1.9°Con the 1961–1990 baseline.

Nearby, measured,and named.

Best time to visit
Nelsonville (historical).

The whole year,
without the guesswork.

Nelsonville (historical) runs +1.9°C
on the 1961–1990 baseline.

Nearby, measured,
and named.