United States · 1991–2020

Best time to visit
Normal.

September leads for comfortable weather in Normal: typically 25.8°C by day, 11.8°C at night, with 82 mm of rain. Based on measured 1991–2020 NOAA station history.

Best comfortSeptember

Typical high25.8°C

Typical low11.8°C

Rain in September82 mm

Comfort

September

September · May · June

79climate match

Beach

July

July · August · June

71climate match

Outdoors

October

October · September · May

73climate match

The weakest month is January, scoring 5 against September’s 79 — days reach only 0.7°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

50.7° / -9°

Feb

53.6° / -7°

Mar

139.8° / -2.1°

Apr

4216.9° / 3.7°

May

7123.3° / 10.4°

Jun

6928.4° / 15.7°

Jul

6229.9° / 17.6°

Aug

6829° / 16.3°

Sep

7925.8° / 11.8°

Oct

5318.6° / 5.7°

Nov

1610° / -0.7°

Dec

53.3° / -5.9°

Monthly climate evidence for Normal — daylight is calculated from latitude, everything else is measured
Month	Day	Night	Rain	Wet days	Daylight	Comfort	Coverage
January	0.7°C	-9°C	63 mm	7.7	9 h 34	5	Strong coverage
February	3.6°C	-7°C	51 mm	6.7	10 h 35	5	Strong coverage
March	9.8°C	-2.1°C	67 mm	8.4	11 h 49	13	Strong coverage
April	16.9°C	3.7°C	97 mm	9.7	13 h 13	42	Strong coverage
May	23.3°C	10.4°C	119 mm	10.6	14 h 24	71	Strong coverage
June	28.4°C	15.7°C	106 mm	9	15 h 03	69	Strong coverage
July	29.9°C	17.6°C	103 mm	7.3	14 h 48	62	Strong coverage
August	29°C	16.3°C	98 mm	7.8	13 h 47	68	Strong coverage
September	25.8°C	11.8°C	82 mm	6.2	12 h 25	79	Strong coverage
October	18.6°C	5.7°C	89 mm	8.3	11 h 03	53	Strong coverage
November	10°C	-0.7°C	72 mm	7.4	9 h 52	16	Strong coverage
December	3.3°C	-5.9°C	56 mm	7.1	9 h 17	5	Strong coverage

Records at NORMAL 4NE, 1977–2026
Month	Record high	Record low	Wettest day	Wettest / driest month	Years
January	18.9°C31 Jan 1989	-30.6°C20 Jan 1985	60 mm8 Jan 2008	173 mm2005 · driest 3 mm in 1986	48
February	24.4°C28 Feb 2024	-28.9°C6 Feb 1982	58 mm23 Feb 1985	130 mm1990 · driest 4 mm in 2026	47
March	31.1°C27 Mar 2026	-22.8°C4 Mar 2014	42 mm5 Mar 2004	135 mm2007 · driest 18 mm in 1981	47
April	32.8°C25 Apr 1986	-15.0°C3 Apr 2018	80 mm16 Apr 2006	189 mm2006 · driest 33 mm in 1986	48
May	36.7°C28 May 2018	-3.3°C7 May 1989	82 mm20 May 1984	238 mm2019 · driest 14 mm in 1992	48
June	39.4°C25 Jun 1988	1.7°C1 Jun 1993	89 mm2 Jun 1980	257 mm1993 · driest 8 mm in 1988	49
July	41.7°C8 Jul 2012	7.8°C2 Jul 2024	143 mm10 Jul 2003	349 mm1992 · driest 13 mm in 1988	50
August	39.4°C17 Aug 1988	5.0°C28 Aug 1986	123 mm6 Aug 1977	252 mm1977 · driest 12 mm in 1996	49
September	38.3°C2 Sep 2011	-0.6°C30 Sep 1984	132 mm20 Sep 1986	279 mm1993 · driest 4 mm in 1979	47
October	33.3°C4 Oct 2025	-7.8°C24 Oct 1981	90 mm3 Oct 1986	259 mm2009 · driest 18 mm in 2024	48
November	26.7°C1 Nov 2000	-17.2°C26 Nov 1977	49 mm1 Nov 1994	237 mm1985 · driest 10 mm in 1999	49
December	22.2°C4 Dec 2012	-30.0°C22 Dec 1989	67 mm29 Dec 1990	172 mm2015 · driest 3 mm in 2004	49

Typical days per month at NORMAL 4NE, 1991–2020
Month	Days 25°C+	Days 30°C+	Frost nights	Heavy rain (10 mm+)	Snow days
January	0	0	28	2	5
February	0	0	25	2	4
March	<1	0	21	2	2
April	3	<1	8	4	<1
May	14	4	<1	4	0
June	25	12	0	3	0
July	29	16	0	3	0
August	28	13	0	3	0
September	18	6	<1	3	0
October	6	<1	5	3	0
November	<1	0	18	3	<1
December	0	0	26	2	3

How often, not how much — every day in NORMAL 4NE’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%	23%	5%	20%	-3.4–4.3°C
February	<1%	22%	5%	23%	-2.1–7.3°C
March	8%	28%	8%	34%	6.5–13.7°C
April	25%	32%	12%	42%	14.5–20.0°C
May	53%	33%	12%	43%	20.8–26.5°C
June	70%	29%	11%	32%	26.7–30.7°C
July	76%	24%	10%	25%	28.6–32.2°C
August	75%	25%	10%	25%	27.3–31.4°C
September	73%	21%	8%	22%	23.9–28.4°C
October	34%	27%	9%	31%	16.9–20.8°C
November	7%	26%	9%	28%	6.8–13.2°C
December	<1%	24%	6%	24%	-0.4–6.8°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.

1978Each stripe is one year’s mean temperature against the 40-year average. Warmest: 1987. Coolest: 2014.2025

The evidence behind this page

Nearby, measured,
and named.

Place identity: GeoNames 4903780
NOAA station: USC00116200 · NORMAL 4NE
Station distance: 5.2 km from the place centre
Climate period: 1991–2020
Minimum month coverage: 28 usable years
Daylight: Calculated from latitude 40.51°, 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 NORMAL 4NE is what differs

Le Roy→Hudson→Downs→Towanda→Kappa→Ellsworth→

Or put two places side by side: Normal vs Le Roy

Best time to visitNormal.