United States · 1991–2020

Best time to visit
Beach Park.

June leads for comfortable weather in Beach Park: typically 24.5°C by day, 13.5°C at night, with 109 mm of rain. Based on measured 1991–2020 NOAA station history.

Best comfortJune

Typical high24.5°C

Typical low13.5°C

Rain in June109 mm

Comfort

June

June · September · August

80climate match

Beach

July

July · August · June

69climate match

Outdoors

September

September · May · October

72climate match

The weakest month is January, scoring 5 against June’s 80 — days reach only -0.6°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

5-0.6° / -8.7°

Feb

50.7° / -8.1°

Mar

56.7° / -2.7°

Apr

2713.1° / 2.3°

May

5319° / 7.8°

Jun

8024.5° / 13.5°

Jul

7427.3° / 16.8°

Aug

7726.4° / 16.3°

Sep

7922.8° / 12.2°

Oct

4515.8° / 5.9°

Nov

189° / 0.1°

Dec

51.9° / -5.9°

Monthly climate evidence for Beach Park — daylight is calculated from latitude, everything else is measured, sea temperature from the nearest open water 6 km away
Month	Day	Night	Rain	Wet days	Sea	Daylight	Comfort	Coverage
January	-0.6°C	-8.7°C	32 mm	5.4	3.4°C	9 h 23	5	Good coverage
February	0.7°C	-8.1°C	38 mm	5.3	2.2°C	10 h 29	5	Good coverage
March	6.7°C	-2.7°C	58 mm	7.3	2.1°C	11 h 48	5	Good coverage
April	13.1°C	2.3°C	92 mm	9.3	3.5°C	13 h 18	27	Good coverage
May	19°C	7.8°C	113 mm	10.5	6.2°C	14 h 34	53	Good coverage
June	24.5°C	13.5°C	109 mm	9	12.9°C	15 h 16	80	Good coverage
July	27.3°C	16.8°C	92 mm	6.9	20.1°C	15 h	74	Good coverage
August	26.4°C	16.3°C	91 mm	8.3	21.8°C	13 h 54	77	Good coverage
September	22.8°C	12.2°C	96 mm	7.3	19.4°C	12 h 26	79	Good coverage
October	15.8°C	5.9°C	84 mm	8.2	13.8°C	10 h 59	45	Good coverage
November	9°C	0.1°C	52 mm	6.7	8.5°C	9 h 43	18	Good coverage
December	1.9°C	-5.9°C	52 mm	6.8	5.3°C	9 h 05	5	Good coverage

Records at CHICAGO WAUKEGAN RGNL AP, 1999–2026
Month	Record high	Record low	Wettest day	Wettest / driest month	Years
January	20.6°C11 Jan 2018	-30.5°C30 Jan 2019	29 mm29 Jan 2013	89 mm2024 · driest 5 mm in 2004	27
February	24.4°C27 Feb 2024	-25.5°C19 Feb 2015	36 mm26 Feb 2009	96 mm2019 · driest 0 mm in 2015	27
March	28.9°C21 Mar 2012	-21.7°C4 Mar 2002	46 mm15 Mar 2026	116 mm2004 · driest 13 mm in 2018	27
April	31.7°C18 Apr 2002	-8.2°C7 Apr 2018	65 mm9 Apr 2015	214 mm2026 · driest 27 mm in 2021	27
May	33.3°C28 May 2012	-3.9°C3 May 2004	84 mm14 May 2020	221 mm2004 · driest 25 mm in 2023	27
June	37.2°C28 Jun 2012	1.7°C1 Jun 2003	100 mm19 Jun 2009	243 mm2018 · driest 9 mm in 2012	27
July	40.0°C4 Jul 2012	6.1°C2 Jul 2001	99 mm23 Jul 2022	202 mm2017 · driest 13 mm in 2021	27
August	37.8°C24 Aug 2023	7.2°C15 Aug 2004	62 mm5 Aug 2007	260 mm2007 · driest 26 mm in 2008	26
September	35.6°C10 Sep 2013	1.1°C19 Sep 2012	73 mm4 Sep 2008	284 mm2019 · driest 11 mm in 2017	27
October	33.3°C3 Oct 2025	-6.0°C31 Oct 2020	72 mm13 Oct 2001	182 mm2009 · driest 20 mm in 2005	27
November	24.4°C1 Nov 2016	-14.9°C12 Nov 2019	42 mm2 Nov 2003	133 mm2003 · driest 7 mm in 1999	27
December	20.6°C5 Dec 2001	-23.8°C19 Dec 2016	50 mm28 Dec 2015	122 mm2015 · driest 12 mm in 2017	27

Typical days per month at CHICAGO WAUKEGAN RGNL AP, 1991–2020
Month	Days 25°C+	Days 30°C+	Frost nights	Heavy rain (10 mm+)
January	0	0	28	<1
February	0	0	26	1
March	<1	0	22	2
April	2	<1	9	3
May	6	1	<1	4
June	15	4	0	3
July	23	8	0	3
August	21	5	0	3
September	10	3	0	3
October	2	<1	4	3
November	0	0	16	2
December	0	0	26	2

How often, not how much — every day in CHICAGO WAUKEGAN RGNL AP’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%	18%	3%	16%	-3.0–2.5°C
February	<1%	18%	4%	13%	-3.6–4.6°C
March	4%	25%	7%	30%	4.5–10.9°C
April	13%	31%	9%	38%	11.4–15.7°C
May	30%	32%	11%	40%	17.6–21.1°C
June	62%	29%	12%	34%	23.0–27.2°C
July	75%	24%	10%	24%	25.0–29.1°C
August	73%	25%	9%	27%	24.8–27.8°C
September	61%	23%	9%	28%	21.0–25.3°C
October	20%	27%	8%	28%	13.6–18.6°C
November	4%	22%	6%	22%	5.8–12.7°C
December	0%	22%	5%	20%	-1.3–5.5°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.

2000Each stripe is one year’s mean temperature against the 26-year average. Warmest: 2024. Coolest: 2014.2025

The evidence behind this page

Nearby, measured,
and named.

Place identity: GeoNames 4884249
NOAA station: USW00014880 · CHICAGO WAUKEGAN RGNL AP
Station distance: 0.6 km from the place centre
Climate period: 1991–2020
Minimum month coverage: 21 usable years
Daylight: Calculated from latitude 42.42°, mid-month, sunrise to sunset including refraction. Not a station measurement.
Sea temperature: NOAA OISST v2.1 1991–2020 monthly climatology, nearest open water 6 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 CHICAGO WAUKEGAN RGNL AP is what differs

Zion→Winthrop Harbor→Wadsworth→Bancroft Corners→Beach Station→Camp Logan→

Or put two places side by side: Beach Park vs Zion

Best time to visitBeach Park.