United States · 1991–2020

Best time to visit
Willmar.

August leads for comfortable weather in Willmar: typically 26.2°C by day, 14.7°C at night, with 100 mm of rain. Based on measured 1991–2020 NOAA station history.

Best comfortAugust

Typical high26.2°C

Typical low14.7°C

Rain in August100 mm

Comfort

August

August · June · September

79climate match

Beach

July

July · August · June

66climate match

Outdoors

May

May · September · October

82climate match

The weakest month is January, scoring 5 against August’s 79 — days reach only -6.6°C, 31° 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

5-6.6° / -16.5°

Feb

5-3.5° / -14°

Mar

53.2° / -6.7°

Apr

3012.8° / 1.1°

May

6320° / 8.2°

Jun

7625.3° / 14.1°

Jul

7427.4° / 16.2°

Aug

7926.2° / 14.7°

Sep

7622.2° / 9.6°

Oct

3814.2° / 2.5°

Nov

54.4° / -4.9°

Dec

5-3.3° / -12.5°

Monthly climate evidence for Willmar — daylight is calculated from latitude, everything else is measured
Month	Day	Night	Rain	Wet days	Daylight	Comfort	Coverage
January	-6.6°C	-16.5°C	19 mm	3.4	9 h 07	5	Good coverage
February	-3.5°C	-14°C	19 mm	3.4	10 h 20	5	Good coverage
March	3.2°C	-6.7°C	35 mm	5.1	11 h 46	5	Good coverage
April	12.8°C	1.1°C	71 mm	6.5	13 h 26	30	Good coverage
May	20°C	8.2°C	80 mm	9.1	14 h 50	63	Good coverage
June	25.3°C	14.1°C	123 mm	9.9	15 h 36	76	Good coverage
July	27.4°C	16.2°C	95 mm	7.7	15 h 18	74	Good coverage
August	26.2°C	14.7°C	100 mm	7.1	14 h 05	79	Good coverage
September	22.2°C	9.6°C	72 mm	6.8	12 h 28	76	Good coverage
October	14.2°C	2.5°C	64 mm	6.7	10 h 52	38	Good coverage
November	4.4°C	-4.9°C	40 mm	4.2	9 h 28	5	Good coverage
December	-3.3°C	-12.5°C	20 mm	4.5	8 h 46	5	Good coverage

Records at WILLMAR WWTP, 1893–2010
Month	Record high	Record low	Wettest day	Wettest / driest month	Years
January	16.7°C24 Jan 1981	-40.6°C9 Jan 1977	38 mm18 Jan 1996	93 mm1969 · driest 0 mm in 1898	103
February	16.1°C26 Feb 1896	-38.9°C9 Feb 1899	76 mm22 Feb 1922	124 mm1922 · driest 0 mm in 1960	102
March	26.1°C30 Mar 1968	-35.0°C11 Mar 1948	52 mm4 Mar 1985	128 mm1965 · driest 1 mm in 1925	104
April	34.4°C21 Apr 1980	-20.6°C5 Apr 1926	84 mm30 Apr 1936	189 mm1896 · driest 6 mm in 1980	105
May	40.6°C31 May 1934	-7.2°C3 May 1967	60 mm10 May 1979	220 mm1965 · driest 7 mm in 1934	105
June	39.4°C27 Jun 1934	0.0°C7 Jun 1897	183 mm9 Jun 1895	329 mm1957 · driest 11 mm in 1900	105
July	41.7°C22 Jul 1934	3.9°C9 Jul 1895	101 mm11 Jul 1981	251 mm1986 · driest 14 mm in 1922	105
August	40.6°C1 Aug 1988	0.6°C30 Aug 1931	107 mm16 Aug 1926	248 mm1926 · driest 5 mm in 2003	103
September	40.6°C10 Sep 1931	-7.2°C22 Sep 1974	133 mm25 Sep 1929	283 mm1942 · driest 12 mm in 2009	103
October	32.8°C2 Oct 1953	-18.3°C30 Oct 1925	70 mm9 Oct 1898	180 mm1968 · driest 0 mm in 1895	103
November	26.7°C9 Nov 1999	-30.0°C20 Nov 1921	51 mm12 Nov 1899	125 mm2001 · driest 0 mm in 1916	103
December	17.8°C6 Dec 1939	-37.2°C13 Dec 1917	33 mm9 Dec 1899	78 mm1927 · driest 0 mm in 1895	103

Typical days per month at WILLMAR WWTP, 1991–2020
Month	Days 25°C+	Days 30°C+	Frost nights	Heavy rain (10 mm+)	Snow days
January	0	0	31	<1	6
February	0	0	27	<1	4
March	<1	0	26	1	4
April	1	<1	13	2	1
May	7	2	1	3	0
June	17	5	0	3	0
July	24	8	0	3	0
August	21	5	0	3	0
September	10	2	<1	2	0
October	2	<1	10	2	<1
November	<1	0	25	1	3
December	0	0	30	<1	6

How often, not how much — every day in WILLMAR WWTP’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%	12%	1%	6%	-11.0–-1.8°C
February	0%	12%	2%	8%	-7.7–0.4°C
March	1%	16%	3%	13%	-1.3–6.9°C
April	14%	23%	7%	26%	9.4–16.6°C
May	42%	27%	9%	31%	17.8–23.5°C
June	63%	30%	12%	35%	22.9–27.7°C
July	76%	23%	8%	20%	26.0–30.8°C
August	75%	23%	9%	23%	25.0–29.4°C
September	53%	22%	8%	22%	19.6–24.5°C
October	23%	17%	5%	15%	12.4–17.8°C
November	1%	14%	3%	11%	0.0–8.0°C
December	0%	11%	1%	7%	-7.4–0.0°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.

1894Each stripe is one year’s mean temperature against the 98-year average. Warmest: 1931. Coolest: 1924.2009

The evidence behind this page

Nearby, measured,
and named.

Place identity: GeoNames 5052916
NOAA station: USC00219004 · WILLMAR WWTP
Station distance: 1.7 km from the place centre
Climate period: 1991–2020
Minimum month coverage: 19 usable years
Daylight: Calculated from latitude 45.12°, 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 WILLMAR WWTP is what differs

Raymond→Kerkhoven→Pennock→Prinsburg→Kandiyohi→Blomkest→

Or put two places side by side: Willmar vs Raymond

Best time to visitWillmar.

August

July

May

The whole year,without the guesswork.

Nearby, measured,and named.

Best time to visit
Willmar.

The whole year,
without the guesswork.

Nearby, measured,
and named.