United States · 1991–2020

Best time to visit
Michigan City.

September leads for comfortable weather in Michigan City: typically 23.6°C by day, 13.2°C at night, with 86 mm of rain. Based on measured 1991–2020 NOAA station history.

Best comfortSeptember

Typical high23.6°C

Typical low13.2°C

Rain in September86 mm

Comfort

September

September · June · August

84climate match

Beach

July

July · August · June

71climate match

Outdoors

May

May · September · October

74climate match

The weakest month is January, scoring 5 against September’s 84 — days reach only -0.4°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

5-0.4° / -7.9°

Feb

51.7° / -6.2°

Mar

67.7° / -1.6°

Apr

3514.7° / 4.2°

May

6421.1° / 10.3°

Jun

7526.1° / 15.8°

Jul

6727.9° / 18.1°

Aug

7126.8° / 17.4°

Sep

8423.6° / 13.2°

Oct

4516.7° / 6.9°

Nov

128.8° / 0.8°

Dec

52.4° / -4.4°

Monthly climate evidence for Michigan City — daylight is calculated from latitude, everything else is measured, sea temperature from the nearest open water 19 km away
Month	Day	Night	Rain	Wet days	Sea	Daylight	Comfort	Coverage
January	-0.4°C	-7.9°C	76 mm	12.5	3.6°C	9 h 27	5	Strong coverage
February	1.7°C	-6.2°C	64 mm	9.5	2.4°C	10 h 32	5	Strong coverage
March	7.7°C	-1.6°C	70 mm	9.4	2.3°C	11 h 48	6	Strong coverage
April	14.7°C	4.2°C	97 mm	10.6	4.0°C	13 h 16	35	Strong coverage
May	21.1°C	10.3°C	110 mm	10.9	7.6°C	14 h 31	64	Strong coverage
June	26.1°C	15.8°C	113 mm	9.6	14.6°C	15 h 11	75	Strong coverage
July	27.9°C	18.1°C	103 mm	8.4	21.2°C	14 h 55	67	Strong coverage
August	26.8°C	17.4°C	107 mm	8.6	22.6°C	13 h 51	71	Strong coverage
September	23.6°C	13.2°C	86 mm	7.7	20.4°C	12 h 25	84	Strong coverage
October	16.7°C	6.9°C	104 mm	9.9	14.9°C	11 h 01	45	Strong coverage
November	8.8°C	0.8°C	82 mm	9.9	9.5°C	9 h 46	12	Strong coverage
December	2.4°C	-4.4°C	73 mm	10.4	5.9°C	9 h 10	5	Strong coverage

What has changed

Michigan City 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

+0.8

Feb

+0.7

Mar

+0.5

Apr

-0.5

May

-0.1

Jun

-0.3

Jul

-0.7

Aug

-0.5

Sep

+0.4

Oct

+0.1

Nov

-0.2

Dec

+1.9

September daytime highs, 2011–2025. Last recorded: 25.1°C.

Records at LAPORTE, 1897–2026
Month	Record high	Record low	Wettest day	Wettest / driest month	Years
January	20.6°C25 Jan 1950	-30.6°C19 Jan 1994	64 mm12 Jan 1960	175 mm2008 · driest 24 mm in 1984	82
February	21.7°C25 Feb 2000	-30.6°C2 Feb 1951	74 mm20 Feb 2018	184 mm2018 · driest 11 mm in 1969	82
March	29.4°C21 Mar 2012	-21.1°C4 Mar 2002	56 mm25 Mar 1954	178 mm1976 · driest 16 mm in 2015	78
April	34.4°C29 Apr 1899	-10.6°C2 Apr 1899	86 mm25 Apr 1954	245 mm1954 · driest 9 mm in 1971	82
May	35.6°C27 May 2012	-5.0°C2 May 1897	82 mm9 May 1996	281 mm1948 · driest 13 mm in 1992	83
June	38.9°C20 Jun 1953	2.2°C1 Jun 1897	97 mm26 Jun 2013	306 mm2026 · driest 15 mm in 1899	82
July	38.9°C8 Jul 1897	6.1°C3 Jul 1950	132 mm23 Jul 1959	295 mm1958 · driest 18 mm in 1975	82
August	39.4°C31 Aug 1953	3.3°C21 Aug 1950	152 mm28 Aug 1978	263 mm2016 · driest 12 mm in 1969	82
September	40.0°C1 Sep 1953	-2.2°C29 Sep 1951	171 mm13 Sep 2008	388 mm2008 · driest 0 mm in 1979	82
October	33.3°C3 Oct 1953	-7.2°C21 Oct 1952	140 mm10 Oct 1954	464 mm1954 · driest 5 mm in 1956	82
November	28.9°C1 Nov 1950	-21.7°C25 Nov 1950	127 mm27 Nov 1990	229 mm1985 · driest 13 mm in 2012	82
December	22.2°C2 Dec 1982	-30.0°C23 Dec 1960	71 mm24 Dec 1965	164 mm1965 · driest 17 mm in 1995	81

Typical days per month at LAPORTE, 1991–2020
Month	Days 25°C+	Days 30°C+	Frost nights	Heavy rain (10 mm+)	Snow days
January	0	0	28	2	12
February	0	0	25	2	9
March	<1	0	21	2	5
April	2	<1	6	3	1
May	9	2	<1	4	0
June	19	7	0	4	0
July	25	10	0	3	0
August	23	6	0	4	0
September	13	3	0	2	0
October	3	<1	1	3	<1
November	0	0	13	3	3
December	0	0	25	2	8

How often, not how much — every day in LAPORTE’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%	-3.7–3.0°C
February	<1%	32%	6%	39%	-1.9–5.4°C
March	5%	32%	8%	44%	4.9–11.3°C
April	18%	36%	11%	45%	12.5–17.6°C
May	44%	31%	11%	38%	18.7–24.7°C
June	66%	30%	12%	36%	24.9–28.9°C
July	73%	27%	11%	31%	26.5–31.0°C
August	74%	25%	11%	26%	25.8–29.6°C
September	63%	24%	9%	27%	22.0–26.2°C
October	29%	29%	10%	37%	14.5–20.4°C
November	4%	32%	9%	42%	5.7–11.9°C
December	0%	35%	8%	46%	-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.

1898Each stripe is one year’s mean temperature against the 73-year average. Warmest: 1998. Coolest: 2014.2025

The evidence behind this page

Nearby, measured,
and named.

Place identity: GeoNames 4923531
NOAA station: USC00124837 · LAPORTE
Station distance: 17.4 km from the place centre
Climate period: 1991–2020
Minimum month coverage: 27 usable years
Daylight: Calculated from latitude 41.71°, mid-month, sunrise to sunset including refraction. Not a station measurement.
Sea temperature: NOAA OISST v2.1 1991–2020 monthly climatology, nearest open water 19 km from the place centre. A sheltered bay can run warmer than the open sea it is measured from.
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 LAPORTE is what differs

La Porte→Trail Creek→New Buffalo→Three Oaks→Kingsford Heights→Long Beach→

Or put two places side by side: Michigan City vs La Porte

Best time to visitMichigan City.

September

July

May

The whole year,without the guesswork.

Michigan City runs +0.2°Con the 1961–1990 baseline.

Nearby, measured,and named.

Best time to visit
Michigan City.

The whole year,
without the guesswork.

Michigan City runs +0.2°C
on the 1961–1990 baseline.

Nearby, measured,
and named.