United States · 1991–2020

Best time to visit
Terre Haute.

September leads for comfortable weather in Terre Haute: typically 25.1°C by day, 12.9°C at night, with 107 mm of rain. Based on measured 1991–2020 NOAA station history.

Best comfortSeptember

Typical high25.1°C

Typical low12.9°C

Rain in September107 mm

Comfort

September

September · May · June

78climate match

Beach

July

July · August · June

70climate match

Outdoors

October

October · May · April

72climate match

The weakest month is January, scoring 5 against September’s 78 — days reach only 0.6°C, 23° 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

50.6° / -9.5°

Feb

53° / -8.1°

Mar

1710.5° / -1.6°

Apr

4116.8° / 4.3°

May

6722.7° / 11°

Jun

6327.9° / 16.3°

Jul

5830° / 18.3°

Aug

6228.9° / 17.1°

Sep

7825.1° / 12.9°

Oct

5217.6° / 5.8°

Nov

1910° / -0.9°

Dec

53° / -6.7°

Monthly climate evidence for Terre Haute — daylight is calculated from latitude, everything else is measured
Month	Day	Night	Rain	Wet days	Daylight	Comfort	Coverage
January	0.6°C	-9.5°C	33 mm	5.3	9 h 35	5	Good coverage
February	3°C	-8.1°C	45 mm	6.1	10 h 36	5	Good coverage
March	10.5°C	-1.6°C	70 mm	7.4	11 h 49	17	Good coverage
April	16.8°C	4.3°C	105 mm	9.5	13 h 13	41	Good coverage
May	22.7°C	11°C	142 mm	10.8	14 h 24	67	Good coverage
June	27.9°C	16.3°C	152 mm	9.2	15 h 03	63	Good coverage
July	30°C	18.3°C	117 mm	7.9	14 h 47	58	Good coverage
August	28.9°C	17.1°C	128 mm	8.4	13 h 46	62	Good coverage
September	25.1°C	12.9°C	107 mm	7.6	12 h 25	78	Good coverage
October	17.6°C	5.8°C	84 mm	7.4	11 h 03	52	Good coverage
November	10°C	-0.9°C	63 mm	5.9	9 h 52	19	Good coverage
December	3°C	-6.7°C	53 mm	6.5	9 h 18	5	Good coverage

What has changed

Terre Haute 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

+0.7

Feb

-0.2

Mar

0.0

Apr

-1.2

May

-0.8

Jun

-0.4

Jul

-0.7

Aug

-0.5

Sep

+0.7

Oct

-1.3

Nov

0.0

Dec

+1.5

September daytime highs, 2011–2019. Last recorded: 27.3°C.

Records at UNIONVILLE, 1893–2020
Month	Record high	Record low	Wettest day	Wettest / driest month	Years
January	21.1°C31 Jan 1989	-33.3°C13 Jan 1912	53 mm14 Jan 1911	140 mm1907 · driest 0 mm in 1986	111
February	26.7°C24 Feb 1930	-33.3°C13 Feb 1905	62 mm17 Feb 1911	189 mm1911 · driest 0 mm in 1937	113
March	31.7°C29 Mar 1986	-25.6°C5 Mar 1960	72 mm12 Mar 1939	175 mm1961 · driest 3 mm in 1910	113
April	34.4°C29 Apr 1901	-13.3°C5 Apr 1920	92 mm18 Apr 2013	186 mm2008 · driest 11 mm in 2018	116
May	40.0°C30 May 1934	-6.7°C4 May 1907	121 mm29 May 2013	434 mm1908 · driest 26 mm in 1980	113
June	40.6°C26 Jun 1901	3.3°C9 Jun 1915	172 mm4 Jun 2014	395 mm2008 · driest 12 mm in 1911	112
July	45.0°C15 Jul 1936	6.7°C14 Jul 1950	227 mm25 Jul 2008	377 mm2008 · driest 1 mm in 1913	112
August	45.6°C8 Aug 1934	2.8°C30 Aug 1915	191 mm27 Aug 1903	293 mm1903 · driest 0 mm in 1909	111
September	41.1°C3 Sep 1939	-3.9°C29 Sep 1908	142 mm26 Sep 1933	354 mm1926 · driest 6 mm in 1940	112
October	36.7°C7 Oct 1939	-19.4°C30 Oct 1925	71 mm11 Oct 1912	214 mm1984 · driest 0 mm in 1952	113
November	30.0°C1 Nov 1950	-23.3°C8 Nov 1991	69 mm27 Nov 2015	208 mm1931 · driest 0 mm in 1904	112
December	22.8°C7 Dec 1894	-33.9°C23 Dec 1989	71 mm15 Dec 1971	138 mm1895 · driest 1 mm in 1934	110

Typical days per month at UNIONVILLE, 1991–2020
Month	Days 25°C+	Days 30°C+	Frost nights	Heavy rain (10 mm+)	Snow days
January	0	0	29	<1	3
February	0	0	26	2	4
March	<1	0	20	2	1
April	3	<1	7	4	<1
May	13	2	<1	4	<1
June	25	10	0	5	0
July	28	16	0	3	0
August	27	12	0	4	0
September	16	5	<1	3	0
October	4	<1	5	3	<1
November	0	0	17	2	<1
December	0	0	27	2	3

How often, not how much — every day in UNIONVILLE’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%	4%	10%	-3.7–4.7°C
February	1%	17%	4%	12%	-1.3–7.9°C
March	11%	22%	7%	23%	6.5–14.0°C
April	29%	29%	10%	36%	14.3–20.4°C
May	54%	32%	14%	41%	20.7–26.6°C
June	69%	30%	13%	33%	25.8–31.0°C
July	77%	23%	11%	23%	28.6–33.5°C
August	74%	25%	11%	26%	27.4–33.5°C
September	67%	26%	12%	29%	23.2–28.7°C
October	43%	21%	8%	21%	16.3–23.1°C
November	9%	17%	6%	13%	7.3–13.7°C
December	<1%	16%	4%	13%	-0.5–6.7°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 101-year average. Warmest: 1931. Coolest: 1917.2017

The evidence behind this page

Nearby, measured,
and named.

Place identity: GeoNames 5057511
NOAA station: USC00238523 · UNIONVILLE
Station distance: 19.9 km from the place centre
Climate period: 1991–2020
Minimum month coverage: 17 usable years
Daylight: Calculated from latitude 40.44°, 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 UNIONVILLE is what differs

Unionville→Lucerne→Livonia→Genoa→Mendota (historical)→Blackbird (historical)→

Or put two places side by side: Terre Haute vs Unionville

Best time to visitTerre Haute.