United States · 1991–2020

Best time to visit
Oshkosh.

September leads for comfortable weather in Oshkosh: typically 22.6°C by day, 11.7°C at night, with 77 mm of rain. Based on measured 1991–2020 NOAA station history.

Best comfortSeptember

Typical high22.6°C

Typical low11.7°C

Rain in September77 mm

Comfort

September

September · June · August

79climate match

Beach

July

July · August · June

68climate match

Outdoors

May

May · September · October

78climate match

The weakest month is January, scoring 5 against September’s 79 — days reach only -3.4°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

5-3.4° / -12°

Feb

5-1.2° / -10.5°

Mar

55.1° / -4.6°

Apr

2712.4° / 2.2°

May

5919.6° / 9°

Jun

7825.1° / 14.9°

Jul

7127.5° / 17.1°

Aug

7826.5° / 16.2°

Sep

7922.6° / 11.7°

Oct

4214.9° / 4.9°

Nov

76.8° / -1.6°

Dec

5-0.1° / -7.9°

Monthly climate evidence for Oshkosh — daylight is calculated from latitude, everything else is measured
Month	Day	Night	Rain	Wet days	Daylight	Comfort	Coverage
January	-3.4°C	-12°C	36 mm	6.5	9 h 14	5	Strong coverage
February	-1.2°C	-10.5°C	28 mm	5.3	10 h 24	5	Strong coverage
March	5.1°C	-4.6°C	49 mm	7	11 h 47	5	Strong coverage
April	12.4°C	2.2°C	81 mm	8.5	13 h 23	27	Strong coverage
May	19.6°C	9°C	100 mm	9.8	14 h 43	59	Strong coverage
June	25.1°C	14.9°C	122 mm	9.4	15 h 28	78	Strong coverage
July	27.5°C	17.1°C	96 mm	8.6	15 h 10	71	Strong coverage
August	26.5°C	16.2°C	86 mm	8	14 h 00	78	Strong coverage
September	22.6°C	11.7°C	77 mm	7.4	12 h 27	79	Strong coverage
October	14.9°C	4.9°C	73 mm	8.1	10 h 55	42	Strong coverage
November	6.8°C	-1.6°C	52 mm	6.6	9 h 34	7	Strong coverage
December	-0.1°C	-7.9°C	41 mm	6.6	8 h 54	5	Strong coverage

What has changed

Oshkosh 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

+1.2

Feb

+0.2

Mar

+1.3

Apr

-0.8

May

-0.3

Jun

+0.3

Jul

+0.1

Aug

+0.3

Sep

+1.6

Oct

+0.7

Nov

+0.8

Dec

+2.4

September daytime highs, 2011–2025. Last recorded: 23.9°C.

Records at OSHKOSH, 1893–2026
Month	Record high	Record low	Wettest day	Wettest / driest month	Years
January	13.9°C31 Jan 2025	-35.6°C30 Jan 1951	61 mm31 Jan 1917	86 mm1918 · driest 3 mm in 1981	133
February	22.2°C28 Feb 2024	-36.7°C20 Feb 1929	46 mm22 Feb 1981	91 mm1928 · driest 0 mm in 1896	132
March	28.3°C22 Mar 2012	-31.1°C1 Mar 1962	63 mm31 Mar 1998	151 mm1979 · driest 0 mm in 1910	132
April	32.8°C22 Apr 1980	-15.0°C1 Apr 1899	94 mm13 Apr 2014	199 mm2026 · driest 7 mm in 1915	133
May	40.0°C31 May 1934	-6.7°C9 May 1966	105 mm3 May 2012	230 mm2004 · driest 10 mm in 1981	133
June	38.9°C1 Jun 1934	-2.2°C25 Jun 1922	131 mm13 Jun 2008	303 mm2008 · driest 17 mm in 1988	129
July	41.7°C13 Jul 1936	-1.1°C4 Jul 1922	99 mm15 Jul 2021	301 mm2010 · driest 2 mm in 1894	130
August	38.9°C16 Aug 1937	0.0°C30 Aug 1915	137 mm4 Aug 1924	303 mm1924 · driest 16 mm in 1969	128
September	37.2°C10 Sep 1931	-3.9°C22 Sep 1974	116 mm11 Sep 1986	292 mm1986 · driest 5 mm in 2004	131
October	32.2°C6 Oct 1963	-13.3°C30 Oct 1925	127 mm23 Oct 2020	173 mm1967 · driest 4 mm in 1924	130
November	25.6°C1 Nov 1933	-22.2°C24 Nov 1950	58 mm28 Nov 1983	179 mm1934 · driest 2 mm in 1976	131
December	18.3°C6 Dec 2001	-32.8°C24 Dec 1983	45 mm23 Dec 2006	123 mm2015 · driest 2 mm in 1960	132

Typical days per month at OSHKOSH, 1991–2020
Month	Days 25°C+	Days 30°C+	Frost nights	Heavy rain (10 mm+)	Snow days
January	0	0	30	1	6
February	0	0	27	<1	6
March	<1	0	24	2	3
April	1	0	9	3	1
May	6	2	<1	3	0
June	17	5	0	4	0
July	25	8	0	3	0
August	22	5	0	3	0
September	11	2	<1	3	0
October	2	<1	5	2	<1
November	0	0	19	2	2
December	0	0	28	1	5

The best month has moved. On the 1961–1990 numbers the strongest month here was June (scoring 86); on 2011–2025 it is September (86). Both are scored the same way, from the same station — only the climate underneath changed.

How often, not how much — every day in OSHKOSH’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%	19%	3%	16%	-7.0–-0.2°C
February	0%	17%	3%	13%	-5.0–2.0°C
March	2%	21%	6%	21%	1.4–8.4°C
April	12%	28%	9%	32%	9.6–15.8°C
May	37%	30%	10%	34%	17.2–22.8°C
June	64%	30%	11%	35%	23.2–27.7°C
July	74%	25%	10%	26%	26.1–30.1°C
August	74%	25%	9%	24%	25.0–28.7°C
September	52%	27%	10%	30%	20.4–24.9°C
October	20%	22%	6%	22%	13.0–18.4°C
November	2%	21%	6%	20%	3.2–9.6°C
December	0%	19%	4%	15%	-4.3–2.6°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.

1906Each stripe is one year’s mean temperature against the 118-year average. Warmest: 2024. Coolest: 1917.2025

The evidence behind this page

Nearby, measured,
and named.

Place identity: GeoNames 5265838
NOAA station: USC00476330 · OSHKOSH
Station distance: 1.3 km from the place centre
Climate period: 1991–2020
Minimum month coverage: 29 usable years
Daylight: Calculated from latitude 44.02°, 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 OSHKOSH is what differs

Omro→Winneconne→Butte des Morts→Island Beach→Allenville→Clarks Point→

Or put two places side by side: Oshkosh vs Omro

Best time to visitOshkosh.

September

July

May

The whole year,without the guesswork.

Oshkosh runs +0.6°Con the 1961–1990 baseline.

Nearby, measured,and named.

Best time to visit
Oshkosh.

The whole year,
without the guesswork.

Oshkosh runs +0.6°C
on the 1961–1990 baseline.

Nearby, measured,
and named.