United States · 1991–2020

Best time to visit
Vermilion.

September leads for comfortable weather in Vermilion: typically 25.8°C by day, 13.1°C at night, with 77 mm of rain. Based on measured 1991–2020 NOAA station history.

Best comfortSeptember

Typical high25.8°C

Typical low13.1°C

Rain in September77 mm

Comfort

September

September · May · August

82climate match

Beach

August

August · July · June

76climate match

Outdoors

October

October · September · May

77climate match

The weakest month is January, scoring 5 against September’s 82 — days reach only 1.5°C, 22° 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

51.5° / -7.4°

Feb

54.3° / -5.5°

Mar

1710.4° / -0.4°

Apr

4317.5° / 5.4°

May

7423.2° / 11.6°

Jun

6627.9° / 16.9°

Jul

6229.5° / 18.5°

Aug

7028.7° / 17.3°

Sep

8225.8° / 13.1°

Oct

5719° / 6.8°

Nov

1810.8° / 0.6°

Dec

54.1° / -4.3°

Monthly climate evidence for Vermilion — daylight is calculated from latitude, everything else is measured
Month	Day	Night	Rain	Wet days	Daylight	Comfort	Coverage
January	1.5°C	-7.4°C	71 mm	7.8	9 h 39	5	Strong coverage
February	4.3°C	-5.5°C	63 mm	7.2	10 h 38	5	Strong coverage
March	10.4°C	-0.4°C	76 mm	8.2	11 h 49	17	Strong coverage
April	17.5°C	5.4°C	124 mm	9.6	13 h 11	43	Strong coverage
May	23.2°C	11.6°C	112 mm	10.4	14 h 20	74	Strong coverage
June	27.9°C	16.9°C	126 mm	8.5	14 h 57	66	Strong coverage
July	29.5°C	18.5°C	101 mm	7.4	14 h 42	62	Strong coverage
August	28.7°C	17.3°C	88 mm	6.1	13 h 43	70	Strong coverage
September	25.8°C	13.1°C	77 mm	5.6	12 h 24	82	Strong coverage
October	19°C	6.8°C	94 mm	6.9	11 h 05	57	Strong coverage
November	10.8°C	0.6°C	92 mm	7.7	9 h 57	18	Strong coverage
December	4.1°C	-4.3°C	71 mm	7.6	9 h 23	5	Strong coverage

What has changed

Vermilion 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

+0.3

Feb

+0.4

Mar

0.0

Apr

-0.7

May

-0.5

Jun

-0.6

Jul

-1.1

Aug

-0.7

Sep

+0.2

Oct

+0.5

Nov

-0.5

Dec

+1.7

September daytime highs, 2011–2025. Last recorded: 28.1°C.

Records at PARIS STP, 1893–2026
Month	Record high	Record low	Wettest day	Wettest / driest month	Years
January	21.7°C17 Jan 1952	-30.6°C18 Jan 1930	76 mm18 Jan 1949	248 mm1950 · driest 0 mm in 1920	131
February	23.9°C27 Feb 2024	-29.4°C13 Feb 1905	76 mm28 Feb 2011	179 mm2011 · driest 1 mm in 1947	132
March	31.1°C22 Mar 1907	-22.2°C6 Mar 1960	117 mm14 Mar 1922	244 mm1922 · driest 6 mm in 1910	133
April	33.3°C18 Apr 1896	-8.3°C7 Apr 1982	100 mm2 Apr 2024	303 mm2011 · driest 8 mm in 1971	134
May	37.2°C10 May 1896	-2.8°C14 May 1895	107 mm2 May 1935	343 mm1943 · driest 22 mm in 1925	133
June	41.1°C25 Jun 1954	0.6°C6 Jun 1894	259 mm28 Jun 1957	448 mm1957 · driest 9 mm in 1959	133
July	42.8°C14 Jul 1936	7.2°C31 Jul 1895	101 mm28 Jul 1979	276 mm1958 · driest 0 mm in 1907	134
August	41.7°C6 Aug 1918	3.9°C31 Aug 1915	88 mm17 Aug 1993	209 mm1993 · driest 10 mm in 1893	132
September	40.6°C5 Sep 1954	-4.4°C30 Sep 1899	172 mm15 Sep 1931	290 mm1911 · driest 4 mm in 1979	131
October	33.9°C7 Oct 1946	-9.4°C29 Oct 1925	100 mm11 Oct 1949	255 mm2001 · driest 0 mm in 2024	131
November	28.3°C1 Nov 1933	-21.1°C25 Nov 1950	94 mm14 Nov 1993	266 mm1985 · driest 3 mm in 1917	132
December	22.8°C2 Dec 1982	-30.0°C22 Dec 1989	116 mm27 Dec 2015	243 mm2015 · driest 0 mm in 1903	132

Typical days per month at PARIS STP, 1991–2020
Month	Days 25°C+	Days 30°C+	Frost nights	Heavy rain (10 mm+)	Snow days
January	0	0	27	2	4
February	0	0	23	2	3
March	<1	0	18	3	1
April	4	0	5	4	<1
May	13	3	<1	4	0
June	24	11	0	4	0
July	28	15	0	4	0
August	27	12	0	3	0
September	18	6	0	3	0
October	6	<1	3	3	0
November	<1	0	15	3	<1
December	0	0	24	2	2

How often, not how much — every day in PARIS STP’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%	23%	7%	22%	-1.8–5.9°C
February	<1%	22%	6%	22%	-0.1–8.2°C
March	9%	27%	10%	30%	6.9–14.7°C
April	27%	31%	12%	38%	15.2–20.8°C
May	56%	30%	12%	37%	21.2–26.5°C
June	71%	28%	12%	30%	26.3–31.4°C
July	78%	22%	10%	21%	28.6–33.4°C
August	80%	20%	9%	17%	27.6–32.0°C
September	73%	21%	9%	19%	24.1–28.9°C
October	43%	20%	8%	20%	17.3–22.4°C
November	8%	24%	9%	23%	8.1–14.0°C
December	<1%	23%	8%	24%	0.5–7.7°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 121-year average. Warmest: 1946. Coolest: 2014.2024

The evidence behind this page

Nearby, measured,
and named.

Place identity: GeoNames 4251969
NOAA station: USC00116610 · PARIS STP
Station distance: 7.9 km from the place centre
Climate period: 1991–2020
Minimum month coverage: 29 usable years
Daylight: Calculated from latitude 39.58°, 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 PARIS STP is what differs

Paris→Marshall→Chrisman→Saint Bernice→Blanford→Brocton→

Or put two places side by side: Vermilion vs Paris

Best time to visitVermilion.