United States · 1991–2020

Best time to visit
Calvin Center.

September leads for comfortable weather in Calvin Center: typically 23.7°C by day, 10.3°C at night, with 86 mm of rain. Based on measured 1991–2020 NOAA station history.

Best comfortSeptember

Typical high23.7°C

Typical low10.3°C

Rain in September86 mm

Comfort

September

September · June · August

79climate match

Beach

July

July · August · June

64climate match

Outdoors

September

September · May · October

74climate match

The weakest month is January, scoring 5 against September’s 79 — days reach only 0°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

50° / -8.7°

Feb

51.8° / -8°

Mar

57.5° / -3.5°

Apr

3214.7° / 2°

May

6120.9° / 8.2°

Jun

7526.1° / 13.5°

Jul

7228.1° / 15.2°

Aug

7527.1° / 14.4°

Sep

7923.7° / 10.3°

Oct

4016.6° / 4.4°

Nov

119° / -0.7°

Dec

52.9° / -5.3°

Monthly climate evidence for Calvin Center — daylight is calculated from latitude, everything else is measured
Month	Day	Night	Rain	Wet days	Daylight	Comfort	Coverage
January	0°C	-8.7°C	78 mm	12.3	9 h 27	5	Strong coverage
February	1.8°C	-8°C	61 mm	9.5	10 h 31	5	Strong coverage
March	7.5°C	-3.5°C	61 mm	8.4	11 h 48	5	Strong coverage
April	14.7°C	2°C	93 mm	9.8	13 h 17	32	Strong coverage
May	20.9°C	8.2°C	107 mm	10.1	14 h 31	61	Strong coverage
June	26.1°C	13.5°C	108 mm	8.8	15 h 12	75	Strong coverage
July	28.1°C	15.2°C	103 mm	7.7	14 h 56	72	Strong coverage
August	27.1°C	14.4°C	105 mm	7.8	13 h 52	75	Strong coverage
September	23.7°C	10.3°C	86 mm	7.6	12 h 26	79	Strong coverage
October	16.6°C	4.4°C	110 mm	10	11 h 00	40	Strong coverage
November	9°C	-0.7°C	73 mm	9.4	9 h 46	11	Strong coverage
December	2.9°C	-5.3°C	70 mm	10.5	9 h 09	5	Strong coverage

What has changed

Calvin Center runs -0.2°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

+0.4

Feb

-0.1

Mar

+0.3

Apr

-0.9

May

-0.5

Jun

-0.7

Jul

-1.1

Aug

-0.9

Sep

+0.3

Oct

-0.1

Nov

-0.5

Dec

+1.5

September daytime highs, 2011–2025. Last recorded: 24.8°C.

Records at DOWAGIAC 1 W, 1953–2026
Month	Record high	Record low	Wettest day	Wettest / driest month	Years
January	17.2°C24 Jan 1967	-29.4°C16 Jan 1972	56 mm12 Jan 1960	155 mm2005 · driest 13 mm in 1956	71
February	22.2°C26 Feb 2000	-30.6°C7 Feb 1978	67 mm20 Feb 2018	179 mm2018 · driest 4 mm in 1987	72
March	29.4°C22 Mar 2012	-25.0°C1 Mar 1967	50 mm8 Mar 2009	161 mm2017 · driest 9 mm in 1994	72
April	31.7°C16 Apr 2002	-14.4°C8 Apr 1972	102 mm17 Apr 2020	226 mm2013 · driest 15 mm in 2004	72
May	35.0°C29 May 2018	-7.2°C10 May 1966	93 mm3 May 2018	218 mm2018 · driest 26 mm in 2021	72
June	39.4°C20 Jun 1953	-1.1°C11 Jun 1972	107 mm25 Jun 1968	227 mm1993 · driest 14 mm in 1988	73
July	39.4°C31 Jul 1999	3.3°C6 Jul 1972	125 mm23 Jul 1959	291 mm1992 · driest 26 mm in 1977	73
August	37.8°C2 Aug 1988	2.2°C9 Aug 1964	147 mm16 Aug 2016	322 mm2007 · driest 16 mm in 1962	73
September	37.2°C2 Sep 1953	-3.3°C23 Sep 2002	121 mm11 Sep 2000	330 mm2008 · driest 1 mm in 1979	72
October	31.1°C2 Oct 1971	-10.6°C17 Oct 2002	101 mm15 Oct 2017	308 mm2017 · driest 13 mm in 2005	71
November	25.0°C2 Nov 2016	-15.6°C18 Nov 1959	65 mm28 Nov 1990	188 mm1985 · driest 11 mm in 2012	72
December	22.2°C6 Dec 2001	-28.9°C23 Dec 1989	49 mm24 Dec 1965	157 mm2008 · driest 20 mm in 1960	70

Typical days per month at DOWAGIAC 1 W, 1991–2020
Month	Days 25°C+	Days 30°C+	Frost nights	Heavy rain (10 mm+)	Snow days
January	0	0	29	2	11
February	0	0	26	2	8
March	<1	0	23	2	3
April	2	<1	12	3	<1
May	9	2	2	4	0
June	19	7	<1	4	0
July	26	10	0	3	0
August	24	7	0	4	0
September	13	4	<1	3	0
October	3	<1	7	4	<1
November	0	0	18	2	2
December	0	0	27	2	8

How often, not how much — every day in DOWAGIAC 1 W’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%	36%	6%	46%	-2.8–2.5°C
February	0%	30%	5%	35%	-0.8–5.4°C
March	5%	27%	7%	33%	4.5–11.1°C
April	17%	33%	10%	43%	12.2–17.8°C
May	45%	29%	11%	34%	18.5–24.4°C
June	67%	28%	12%	32%	24.6–29.0°C
July	74%	25%	11%	25%	26.9–30.8°C
August	75%	24%	10%	23%	25.5–29.4°C
September	62%	25%	10%	29%	22.2–26.0°C
October	26%	30%	11%	38%	14.8–19.9°C
November	4%	32%	8%	40%	6.2–11.5°C
December	<1%	34%	7%	43%	-0.5–5.9°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.

1954Each stripe is one year’s mean temperature against the 66-year average. Warmest: 1998. Coolest: 2014.2025

The evidence behind this page

Nearby, measured,
and named.

Place identity: GeoNames 4987714
NOAA station: USC00202250 · DOWAGIAC 1 W
Station distance: 22.5 km from the place centre
Climate period: 1991–2020
Minimum month coverage: 29 usable years
Daylight: Calculated from latitude 41.85°, 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 DOWAGIAC 1 W is what differs

Dowagiac→Decatur→Cassopolis→Vandalia→Brownsville→Dailey→

Or put two places side by side: Calvin Center vs Dowagiac

Best time to visitCalvin Center.

September

July

September

The whole year,without the guesswork.

Calvin Center runs -0.2°Con the 1961–1990 baseline.

Nearby, measured,and named.

Best time to visit
Calvin Center.

The whole year,
without the guesswork.

Calvin Center runs -0.2°C
on the 1961–1990 baseline.

Nearby, measured,
and named.