United States · 1991–2020

Best time to visit
Lake Mills.

August leads for comfortable weather in Lake Mills: typically 26.5°C by day, 15°C at night, with 100 mm of rain. Based on measured 1991–2020 NOAA station history.

Best comfortAugust

Typical high26.5°C

Typical low15°C

Rain in August100 mm

Comfort

August

August · September · June

78climate match

Beach

July

July · August · June

66climate match

Outdoors

September

September · May · October

75climate match

The weakest month is January, scoring 5 against August’s 78 — days reach only -4.6°C, 29° 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

5-4.6° / -14.3°

Feb

5-2.3° / -12°

Mar

55° / -5°

Apr

3014° / 1.6°

May

5920.7° / 8.7°

Jun

7226° / 14.7°

Jul

7027.8° / 16.5°

Aug

7826.5° / 15°

Sep

7723.2° / 10.3°

Oct

4415.6° / 3.2°

Nov

56.2° / -3.9°

Dec

5-1.5° / -10.3°

Monthly climate evidence for Lake Mills — daylight is calculated from latitude, everything else is measured
Month	Day	Night	Rain	Wet days	Daylight	Comfort	Coverage
January	-4.6°C	-14.3°C	20 mm	3.2	9 h 17	5	Strong coverage
February	-2.3°C	-12°C	24 mm	3.5	10 h 26	5	Strong coverage
March	5°C	-5°C	45 mm	4.7	11 h 47	5	Strong coverage
April	14°C	1.6°C	93 mm	8.4	13 h 21	30	Strong coverage
May	20.7°C	8.7°C	120 mm	10.7	14 h 40	59	Strong coverage
June	26°C	14.7°C	136 mm	10.2	15 h 23	72	Strong coverage
July	27.8°C	16.5°C	109 mm	7.6	15 h 06	70	Strong coverage
August	26.5°C	15°C	100 mm	7.6	13 h 58	78	Strong coverage
September	23.2°C	10.3°C	95 mm	6.9	12 h 27	77	Strong coverage
October	15.6°C	3.2°C	62 mm	6.7	10 h 56	44	Strong coverage
November	6.2°C	-3.9°C	38 mm	4.5	9 h 37	5	Strong coverage
December	-1.5°C	-10.3°C	29 mm	3.7	8 h 58	5	Strong coverage

What has changed

Lake Mills runs -0.1°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

+0.9

Feb

-0.9

Mar

+0.3

Apr

-1.5

May

-1.6

Jun

-0.3

Jul

-0.9

Aug

-0.8

Sep

+1.3

Oct

-0.4

Nov

+0.6

Dec

+2.1

August daytime highs, 2011–2024. Last recorded: 24.8°C.

Records at FOREST CITY 2 NNE, 1894–2025
Month	Record high	Record low	Wettest day	Wettest / driest month	Years
January	17.8°C25 Jan 1944	-37.8°C12 Jan 1912	51 mm27 Jan 2004	65 mm1932 · driest 0 mm in 1997	128
February	22.2°C27 Feb 2024	-36.1°C9 Feb 1899	51 mm28 Feb 1998	93 mm1971 · driest 0 mm in 1994	129
March	30.0°C30 Mar 1895	-32.2°C1 Mar 1962	71 mm13 Mar 1991	139 mm1991 · driest 0 mm in 1968	128
April	34.4°C28 Apr 1910	-14.4°C6 Apr 1982	66 mm12 Apr 2005	180 mm1999 · driest 4 mm in 1910	127
May	41.1°C31 May 1934	-5.6°C3 May 1967	155 mm21 May 1959	307 mm1959 · driest 22 mm in 1989	128
June	40.0°C2 Jun 1934	1.1°C9 Jun 1915	165 mm12 Jun 1944	312 mm1968 · driest 27 mm in 1933	127
July	42.2°C14 Jul 1936	3.3°C9 Jul 1895	104 mm12 Jul 2000	312 mm1963 · driest 0 mm in 2024	128
August	40.6°C3 Aug 1930	1.7°C30 Aug 1915	191 mm31 Aug 1962	411 mm1979 · driest 14 mm in 1949	128
September	38.3°C6 Sep 1922	-6.7°C28 Sep 1942	146 mm8 Sep 1964	290 mm2018 · driest 0 mm in 1950	128
October	36.1°C5 Oct 1963	-19.4°C30 Oct 1925	81 mm1 Oct 1923	198 mm2009 · driest 0 mm in 1960	127
November	26.7°C9 Nov 2006	-25.0°C26 Nov 1977	56 mm20 Nov 1934	183 mm1909 · driest 0 mm in 1894	128
December	20.6°C2 Dec 1998	-33.3°C14 Dec 1901	51 mm19 Dec 2008	107 mm2009 · driest 0 mm in 1986	125

Typical days per month at FOREST CITY 2 NNE, 1991–2020
Month	Days 25°C+	Days 30°C+	Frost nights	Heavy rain (10 mm+)	Snow days
January	0	0	29	<1	5
February	0	0	26	<1	4
March	<1	0	24	1	3
April	2	<1	10	3	<1
May	8	2	<1	4	0
June	18	6	0	4	0
July	24	8	0	4	0
August	21	5	0	3	0
September	12	3	<1	3	0
October	3	<1	9	2	<1
November	<1	0	22	1	2
December	0	0	28	<1	5

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

How often, not how much — every day in FOREST CITY 2 NNE’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%	14%	2%	8%	-8.7–0.2°C
February	0%	14%	2%	7%	-6.2–2.1°C
March	4%	18%	5%	17%	0.7–9.6°C
April	20%	26%	9%	29%	10.6–17.6°C
May	46%	30%	12%	38%	18.9–24.3°C
June	65%	31%	13%	36%	23.8–28.8°C
July	75%	25%	10%	24%	26.6–31.1°C
August	75%	24%	10%	23%	25.3–29.8°C
September	60%	23%	9%	23%	20.9–25.6°C
October	30%	18%	6%	16%	13.6–19.6°C
November	3%	15%	4%	11%	2.7–9.7°C
December	0%	13%	3%	6%	-5.3–2.3°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.

1896Each stripe is one year’s mean temperature against the 114-year average. Warmest: 1931. Coolest: 1917.2024

The evidence behind this page

Nearby, measured,
and named.

Place identity: GeoNames 4863966
NOAA station: USC00132977 · FOREST CITY 2 NNE
Station distance: 16.9 km from the place centre
Climate period: 1991–2020
Minimum month coverage: 29 usable years
Daylight: Calculated from latitude 43.42°, 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 FOREST CITY 2 NNE is what differs

Forest City→Buffalo Center→Thompson→Leland→Joice→Scarville→

Or put two places side by side: Lake Mills vs Forest City

Best time to visitLake Mills.