United States · 1991–2020

Best time to visit
Mahomet.

September leads for comfortable weather in Mahomet: typically 25.6°C by day, 11.8°C at night, with 84 mm of rain. Based on measured 1991–2020 NOAA station history.

Best comfortSeptember

Typical high25.6°C

Typical low11.8°C

Rain in September84 mm

Comfort

September

September · August · May

79climate match

Beach

August

August · July · June

72climate match

Outdoors

October

October · September · May

73climate match

The weakest month is January, scoring 5 against September’s 79 — days reach only 0.8°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

50.8° / -8.2°

Feb

52.6° / -7.1°

Mar

1810.7° / -0.6°

Apr

4617.7° / 4.5°

May

7423.3° / 11.1°

Jun

6727.9° / 15.8°

Jul

6728.6° / 16.9°

Aug

7827.9° / 15.5°

Sep

7925.6° / 11.8°

Oct

5318.5° / 5.2°

Nov

1910.6° / -0.4°

Dec

53.6° / -4.9°

Monthly climate evidence for Mahomet — daylight is calculated from latitude, everything else is measured
Month	Day	Night	Rain	Wet days	Daylight	Comfort	Coverage
January	0.8°C	-8.2°C	60 mm	7.8	9 h 36	5	Good coverage
February	2.6°C	-7.1°C	48 mm	7.1	10 h 36	5	Good coverage
March	10.7°C	-0.6°C	72 mm	8.7	11 h 49	18	Good coverage
April	17.7°C	4.5°C	99 mm	9.4	13 h 13	46	Good coverage
May	23.3°C	11.1°C	105 mm	10.5	14 h 23	74	Good coverage
June	27.9°C	15.8°C	126 mm	9.1	15 h 01	67	Good coverage
July	28.6°C	16.9°C	110 mm	7.4	14 h 46	67	Good coverage
August	27.9°C	15.5°C	70 mm	6.3	13 h 45	78	Good coverage
September	25.6°C	11.8°C	84 mm	6.1	12 h 24	79	Good coverage
October	18.5°C	5.2°C	83 mm	7.7	11 h 04	53	Good coverage
November	10.6°C	-0.4°C	76 mm	7.1	9 h 54	19	Good coverage
December	3.6°C	-4.9°C	68 mm	7.9	9 h 19	5	Good coverage

Records at CHAMPAIGN 9 SW, 2003–2026
Month	Record high	Record low	Wettest day	Wettest / driest month	Years
January	19.4°C7 Jan 2008	-27.9°C31 Jan 2004	49 mm13 Jan 2005	166 mm2005 · driest 15 mm in 2022	24
February	23.8°C27 Feb 2024	-28.1°C24 Feb 2015	68 mm5 Feb 2008	136 mm2008 · driest 8 mm in 2026	24
March	30.2°C26 Mar 2026	-25.8°C6 Mar 2015	73 mm26 Mar 2004	179 mm2004 · driest 20 mm in 2012	24
April	31.6°C30 Apr 2007	-15.3°C2 Apr 2018	79 mm10 Apr 2013	211 mm2013 · driest 35 mm in 2004	24
May	34.6°C28 May 2018	-3.1°C3 May 2005	102 mm21 May 2014	165 mm2014 · driest 26 mm in 2007	24
June	37.2°C16 Jun 2022	1.9°C1 Jun 2003	113 mm3 Jun 2008	253 mm2010 · driest 27 mm in 2022	24
July	37.4°C25 Jul 2012	6.8°C1 Jul 2024	78 mm26 Jul 2006	207 mm2006 · driest 15 mm in 2012	24
August	35.8°C2 Aug 2012	5.1°C15 Aug 2004	68 mm31 Aug 2003	132 mm2009 · driest 3 mm in 2013	23
September	36.5°C1 Sep 2011	-0.8°C24 Sep 2012	100 mm14 Sep 2008	250 mm2008 · driest 7 mm in 2017	23
October	31.9°C1 Oct 2019	-7.0°C21 Oct 2018	65 mm26 Oct 2019	209 mm2009 · driest 13 mm in 2024	23
November	25.7°C1 Nov 2016	-17.4°C12 Nov 2019	75 mm4 Nov 2024	155 mm2024 · driest 18 mm in 2023	23
December	21.8°C3 Dec 2012	-26.7°C14 Dec 2025	60 mm26 Dec 2015	173 mm2015 · driest 3 mm in 2017	23

Typical days per month at CHAMPAIGN 9 SW, 1991–2020
Month	Days 25°C+	Days 30°C+	Frost nights	Heavy rain (10 mm+)
January	0	0	27	2
February	0	0	25	2
March	<1	0	18	3
April	4	<1	6	4
May	13	3	<1	4
June	24	9	0	4
July	27	10	0	4
August	26	7	0	2
September	17	5	<1	3
October	6	<1	6	3
November	<1	0	17	2
December	0	0	25	2

How often, not how much — every day in CHAMPAIGN 9 SW’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%	24%	5%	26%	-2.2–4.6°C
February	1%	23%	5%	22%	-2.4–7.6°C
March	10%	28%	9%	31%	7.8–14.8°C
April	27%	32%	11%	44%	15.8–19.7°C
May	51%	32%	11%	40%	21.5–26.1°C
June	71%	28%	11%	30%	26.9–29.1°C
July	76%	24%	11%	23%	26.8–29.9°C
August	80%	20%	7%	20%	26.9–29.6°C
September	72%	20%	8%	20%	23.3–27.6°C
October	35%	24%	8%	25%	16.6–21.3°C
November	7%	23%	7%	23%	7.4–13.0°C
December	<1%	25%	7%	25%	1.4–7.3°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.

2003Each stripe is one year’s mean temperature against the 23-year average. Warmest: 2012. Coolest: 2014.2025

The evidence behind this page

Nearby, measured,
and named.

Place identity: GeoNames 4900885
NOAA station: USW00054808 · CHAMPAIGN 9 SW
Station distance: 16.1 km from the place centre
Climate period: 1991–2020
Minimum month coverage: 15 usable years
Daylight: Calculated from latitude 40.20°, 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 CHAMPAIGN 9 SW is what differs

Monticello→Lake of the Woods→Farmer City→Bement→Mansfield→Bondville→

Or put two places side by side: Mahomet vs Monticello

Best time to visitMahomet.