United States · 1991–2020

Best time to visit
East Dundee.

September leads for comfortable weather in East Dundee: typically 24.2°C by day, 11.6°C at night, with 90 mm of rain. Based on measured 1991–2020 NOAA station history.

Best comfortSeptember

Typical high24.2°C

Typical low11.6°C

Rain in September90 mm

Comfort

September

September · June · August

82climate match

Beach

July

July · August · June

72climate match

Outdoors

May

May · September · October

70climate match

The weakest month is January, scoring 5 against September’s 82 — days reach only -1.2°C, 25° 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

5-1.2° / -10°

Feb

51.1° / -8.4°

Mar

77.7° / -3.1°

Apr

3214.7° / 2.7°

May

6021.2° / 9.1°

Jun

7426.6° / 14.7°

Jul

6728.8° / 17.3°

Aug

7027.8° / 16.2°

Sep

8224.2° / 11.6°

Oct

4817° / 5°

Nov

128.6° / -1°

Dec

51.8° / -6.6°

Monthly climate evidence for East Dundee — daylight is calculated from latitude, everything else is measured, sea temperature from the nearest open water 45 km away
Month	Day	Night	Rain	Wet days	Sea	Daylight	Comfort	Coverage
January	-1.2°C	-10°C	48 mm	6.7	3.4°C	9 h 25	5	Strong coverage
February	1.1°C	-8.4°C	47 mm	6.2	2.2°C	10 h 30	5	Strong coverage
March	7.7°C	-3.1°C	59 mm	7.1	2.1°C	11 h 48	7	Strong coverage
April	14.7°C	2.7°C	102 mm	10.1	3.5°C	13 h 17	32	Strong coverage
May	21.2°C	9.1°C	130 mm	10.1	6.2°C	14 h 33	60	Strong coverage
June	26.6°C	14.7°C	116 mm	9.3	12.9°C	15 h 14	74	Strong coverage
July	28.8°C	17.3°C	101 mm	7.7	20.1°C	14 h 58	67	Strong coverage
August	27.8°C	16.2°C	113 mm	8.1	21.8°C	13 h 53	70	Strong coverage
September	24.2°C	11.6°C	90 mm	7.3	19.4°C	12 h 26	82	Strong coverage
October	17°C	5°C	83 mm	8	13.8°C	11 h	48	Strong coverage
November	8.6°C	-1°C	68 mm	7.2	8.5°C	9 h 44	12	Strong coverage
December	1.8°C	-6.6°C	56 mm	7.5	5.3°C	9 h 07	5	Strong coverage

Records at ELGIN WATER, 1897–2026
Month	Record high	Record low	Wettest day	Wettest / driest month	Years
January	17.2°C8 Jan 2008	-32.8°C20 Jan 1985	42 mm17 Jan 2017	114 mm1907 · driest 0 mm in 1981	69
February	23.3°C28 Feb 2024	-31.7°C1 Feb 2019	81 mm21 Feb 1997	146 mm1925 · driest 1 mm in 1987	71
March	28.3°C21 Mar 2012	-22.8°C1 Mar 2015	48 mm5 Mar 1976	141 mm1922 · driest 5 mm in 1986	70
April	32.8°C27 Apr 1986	-11.7°C6 Apr 1979	87 mm18 Apr 2013	228 mm2026 · driest 17 mm in 1916	71
May	36.1°C28 May 2018	-2.2°C9 May 2020	98 mm25 May 1922	249 mm2018 · driest 12 mm in 1992	68
June	38.3°C26 Jun 1988	2.2°C1 Jun 2003	127 mm25 Jun 1898	255 mm1993 · driest 6 mm in 1922	70
July	39.4°C1 Jul 1910	5.0°C28 Jul 2026	93 mm5 Jul 2022	246 mm2017 · driest 8 mm in 1916	69
August	38.9°C12 Aug 1918	3.3°C31 Aug 1915	125 mm22 Aug 2002	398 mm2007 · driest 18 mm in 2020	69
September	37.2°C4 Sep 1925	-3.9°C30 Sep 1899	95 mm13 Sep 2008	292 mm2008 · driest 0 mm in 1979	70
October	31.7°C15 Oct 1975	-11.7°C29 Oct 1925	77 mm18 Oct 1998	198 mm2017 · driest 15 mm in 2010	70
November	24.4°C7 Nov 1915	-21.7°C29 Nov 1976	57 mm11 Nov 1995	214 mm1985 · driest 6 mm in 1917	70
December	20.0°C4 Dec 2012	-31.1°C25 Dec 1983	66 mm3 Dec 1982	140 mm2015 · driest 7 mm in 1989	72

Typical days per month at ELGIN WATER, 1991–2020
Month	Days 25°C+	Days 30°C+	Frost nights	Heavy rain (10 mm+)	Snow days
January	0	0	29	2	7
February	0	0	26	2	5
March	<1	0	23	2	3
April	2	<1	9	4	<1
May	9	2	<1	4	0
June	20	8	0	4	0
July	27	12	0	3	0
August	25	9	0	3	0
September	15	4	<1	3	0
October	3	<1	5	3	0
November	0	0	18	2	1
December	0	0	27	2	5

How often, not how much — every day in ELGIN WATER’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%	20%	5%	18%	-5.6–2.1°C
February	<1%	20%	4%	16%	-3.5–4.9°C
March	4%	23%	7%	26%	3.4–11.2°C
April	18%	29%	10%	35%	11.7–18.0°C
May	44%	30%	11%	37%	18.4–24.1°C
June	68%	28%	12%	32%	24.9–29.0°C
July	75%	24%	10%	23%	27.2–31.2°C
August	75%	24%	9%	23%	25.7–30.0°C
September	62%	23%	10%	24%	22.0–26.8°C
October	26%	22%	8%	23%	14.0–20.0°C
November	4%	23%	7%	23%	5.6–11.4°C
December	0%	21%	5%	20%	-2.5–5.0°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 55-year average. Warmest: 1921. Coolest: 1979.2025

The evidence behind this page

Nearby, measured,
and named.

Place identity: GeoNames 4890486
NOAA station: USC00112736 · ELGIN WATER
Station distance: 4.2 km from the place centre
Climate period: 1991–2020
Minimum month coverage: 28 usable years
Daylight: Calculated from latitude 42.10°, mid-month, sunrise to sunset including refraction. Not a station measurement.
Sea temperature: NOAA OISST v2.1 1991–2020 monthly climatology, nearest open water 45 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 ELGIN WATER is what differs

Elgin→Carpentersville→Algonquin→Lake in the Hills→Huntley→South Elgin→

Or put two places side by side: East Dundee vs Elgin

Best time to visitEast Dundee.

September

July

May

The whole year,without the guesswork.

Nearby, measured,and named.

Best time to visit
East Dundee.

The whole year,
without the guesswork.

Nearby, measured,
and named.