United States · 1991–2020

Best time to visit
Fremont.

September leads for comfortable weather in Fremont: typically 24.8°C by day, 12.2°C at night, with 89 mm of rain. Based on measured 1991–2020 NOAA station history.

Best comfortSeptember

Typical high24.8°C

Typical low12.2°C

Rain in September89 mm

Comfort

September

September · May · August

82climate match

Beach

July

July · August · June

75climate match

Outdoors

October

October · September · May

74climate match

The weakest month is January, scoring 5 against September’s 82 — days reach only -0.3°C, 24° 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

5-0.3° / -9.7°

Feb

52.3° / -7.4°

Mar

179.8° / -1.3°

Apr

4316.8° / 4.5°

May

6722.3° / 10.9°

Jun

6527.5° / 16.5°

Jul

6229.5° / 18.5°

Aug

6628.5° / 17.1°

Sep

8224.8° / 12.2°

Oct

5317.5° / 5.7°

Nov

189.5° / -1°

Dec

52.5° / -6.5°

Monthly climate evidence for Fremont — daylight is calculated from latitude, everything else is measured
Month	Day	Night	Rain	Wet days	Daylight	Comfort	Coverage
January	-0.3°C	-9.7°C	26 mm	4.8	9 h 30	5	Strong coverage
February	2.3°C	-7.4°C	36 mm	5.1	10 h 33	5	Strong coverage
March	9.8°C	-1.3°C	58 mm	6.9	11 h 48	17	Strong coverage
April	16.8°C	4.5°C	95 mm	9.2	13 h 15	43	Strong coverage
May	22.3°C	10.9°C	130 mm	10.6	14 h 28	67	Strong coverage
June	27.5°C	16.5°C	137 mm	9.6	15 h 08	65	Strong coverage
July	29.5°C	18.5°C	98 mm	7.6	14 h 52	62	Strong coverage
August	28.5°C	17.1°C	113 mm	7.7	13 h 49	66	Strong coverage
September	24.8°C	12.2°C	89 mm	6.5	12 h 25	82	Strong coverage
October	17.5°C	5.7°C	71 mm	6.7	11 h 02	53	Strong coverage
November	9.5°C	-1°C	53 mm	5.9	9 h 49	18	Strong coverage
December	2.5°C	-6.5°C	36 mm	4.6	9 h 13	5	Strong coverage

What has changed

Fremont runs +0.9°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

+1.4

Feb

+0.9

Mar

+2.0

Apr

+0.3

May

+0.1

Jun

+0.4

Jul

-0.6

Aug

-0.1

Sep

+1.8

Oct

+0.3

Nov

+0.9

Dec

+3.0

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

Records at OTTUMWA IND AP, 1948–2026
Month	Record high	Record low	Wettest day	Wettest / driest month	Years
January	21.7°C31 Jan 1989	-30.6°C10 Jan 1982	39 mm27 Jan 1949	88 mm2024 · driest 0 mm in 1948	79
February	26.1°C22 Feb 2017	-32.8°C3 Feb 1996	49 mm24 Feb 2007	96 mm1997 · driest 0 mm in 2010	79
March	32.8°C21 Mar 2026	-28.9°C1 Mar 1962	71 mm4 Mar 1976	129 mm1977 · driest 7 mm in 1958	77
April	32.8°C30 Apr 1965	-12.8°C6 Apr 1982	124 mm17 Apr 2013	218 mm2013 · driest 12 mm in 2018	79
May	36.1°C28 May 2018	-4.4°C3 May 2005	113 mm2 May 1993	272 mm1996 · driest 18 mm in 1992	78
June	39.4°C25 Jun 1988	5.0°C12 Jun 2023	87 mm25 Jun 2008	314 mm2010 · driest 20 mm in 1992	79
July	41.1°C23 Jul 2012	8.9°C28 Jul 2013	96 mm12 Jul 1989	284 mm1992 · driest 16 mm in 1983	79
August	40.6°C18 Aug 1983	5.0°C20 Aug 1950	115 mm20 Aug 2010	318 mm2010 · driest 8 mm in 2020	78
September	37.8°C1 Sep 1984	-2.8°C29 Sep 1984	135 mm14 Sep 1992	347 mm1965 · driest 12 mm in 1979	77
October	33.9°C2 Oct 1953	-8.3°C19 Oct 1972	61 mm24 Oct 2021	168 mm1998 · driest 0 mm in 1952	78
November	26.1°C8 Nov 1999	-22.8°C30 Nov 1964	66 mm2 Nov 1961	179 mm1961 · driest 2 mm in 1989	78
December	23.9°C15 Dec 2021	-29.4°C23 Dec 1989	48 mm7 Dec 1980	105 mm2015 · driest 1 mm in 2002	78

Typical days per month at OTTUMWA IND AP, 1991–2020
Month	Days 25°C+	Days 30°C+	Frost nights	Heavy rain (10 mm+)	Snow days
January	0	0	29	<1	6
February	0	0	25	<1	4
March	<1	0	20	2	2
April	4	<1	7	3	<1
May	11	2	<1	4	0
June	23	10	0	4	0
July	29	15	0	3	0
August	27	11	0	4	0
September	16	5	<1	3	0
October	4	<1	5	2	<1
November	<1	0	18	2	1
December	0	0	27	1	3

How often, not how much — every day in OTTUMWA IND AP’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%	16%	2%	11%	-4.6–2.7°C
February	<1%	17%	3%	14%	-2.7–6.8°C
March	7%	23%	6%	25%	5.2–12.4°C
April	26%	29%	10%	32%	13.4–19.6°C
May	52%	30%	11%	38%	20.5–25.2°C
June	70%	29%	12%	32%	25.9–29.9°C
July	75%	25%	11%	25%	28.0–32.3°C
August	76%	23%	10%	23%	27.2–30.6°C
September	68%	22%	10%	21%	22.5–27.2°C
October	34%	20%	7%	21%	15.3–20.6°C
November	7%	18%	6%	14%	5.7–12.1°C
December	<1%	17%	3%	14%	-1.1–5.6°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.

1948Each stripe is one year’s mean temperature against the 75-year average. Warmest: 1987. Coolest: 2014.2025

The evidence behind this page

Nearby, measured,
and named.

Place identity: GeoNames 4857795
NOAA station: USW00014950 · OTTUMWA IND AP
Station distance: 12.4 km from the place centre
Climate period: 1991–2020
Minimum month coverage: 28 usable years
Daylight: Calculated from latitude 41.21°, 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 OTTUMWA IND AP is what differs

Ottumwa→Hedrick→Agency→Kirkville→Chillicothe→Ashland→

Or put two places side by side: Fremont vs Ottumwa

Best time to visitFremont.