United States · 1991–2020

Best time to visit
State Line.

June leads for comfortable weather in State Line: typically 22.9°C by day, 13.8°C at night, with 105 mm of rain. Based on measured 1991–2020 NOAA station history.

Best comfortJune

Typical high22.9°C

Typical low13.8°C

Rain in June105 mm

Comfort

June

June · September · August

79climate match

Beach

July

July · August · September

70climate match

Outdoors

September

September · May · October

73climate match

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

5-0.7° / -8.5°

Feb

51.1° / -6.9°

Mar

56.1° / -2.1°

Apr

2111.4° / 2.9°

May

5017.5° / 8.2°

Jun

7922.9° / 13.8°

Jul

7526.5° / 17.8°

Aug

7725.7° / 17.6°

Sep

7922.1° / 13.3°

Oct

4615.7° / 6.8°

Nov

158.5° / 0.3°

Dec

52.2° / -5.2°

Monthly climate evidence for State Line — daylight is calculated from latitude, everything else is measured, sea temperature from the nearest open water 14 km away
Month	Day	Night	Rain	Wet days	Sea	Daylight	Comfort	Coverage
January	-0.7°C	-8.5°C	50 mm	7.6	3.4°C	9 h 23	5	Strong coverage
February	1.1°C	-6.9°C	46 mm	6.1	2.2°C	10 h 29	5	Strong coverage
March	6.1°C	-2.1°C	68 mm	7.6	2.1°C	11 h 48	5	Strong coverage
April	11.4°C	2.9°C	105 mm	10	3.5°C	13 h 18	21	Strong coverage
May	17.5°C	8.2°C	104 mm	10.4	6.2°C	14 h 35	50	Strong coverage
June	22.9°C	13.8°C	105 mm	8.8	12.9°C	15 h 17	79	Strong coverage
July	26.5°C	17.8°C	88 mm	7.3	20.1°C	15 h 00	75	Strong coverage
August	25.7°C	17.6°C	93 mm	8	21.8°C	13 h 54	77	Strong coverage
September	22.1°C	13.3°C	92 mm	7	19.4°C	12 h 26	79	Strong coverage
October	15.7°C	6.8°C	84 mm	8.1	13.8°C	10 h 59	46	Strong coverage
November	8.5°C	0.3°C	61 mm	7	8.5°C	9 h 42	15	Strong coverage
December	2.2°C	-5.2°C	53 mm	7.1	5.3°C	9 h 05	5	Strong coverage

What has changed

State Line runs +1.1°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

+1.5

Feb

+1.0

Mar

+1.5

Apr

+0.4

May

+0.8

Jun

+0.6

Jul

+0.8

Aug

+0.7

Sep

+1.6

Oct

+0.9

Nov

+0.7

Dec

+2.5

June daytime highs, 2011–2025. Last recorded: 25.2°C.

Records at KENOSHA WWTP, 1944–2026
Month	Record high	Record low	Wettest day	Wettest / driest month	Years
January	18.3°C7 Jan 2008	-35.0°C20 Jan 1985	66 mm12 Jan 1960	129 mm1999 · driest 3 mm in 1961	80
February	23.3°C27 Feb 2024	-30.6°C3 Feb 1996	41 mm24 Feb 2001	107 mm2023 · driest 0 mm in 1947	82
March	28.3°C29 Mar 1986	-22.8°C1 Mar 1962	64 mm27 Mar 1991	146 mm1991 · driest 9 mm in 1968	82
April	32.2°C22 Apr 1980	-12.2°C7 Apr 1982	70 mm9 Apr 2015	201 mm2013 · driest 17 mm in 1946	82
May	34.4°C24 May 1950	-3.3°C8 May 1977	85 mm17 May 2020	251 mm2004 · driest 6 mm in 1992	83
June	38.9°C20 Jun 1953	0.6°C1 Jun 1984	103 mm19 Jun 2009	236 mm2018 · driest 6 mm in 2012	83
July	40.6°C4 Jul 2012	5.0°C6 Jul 1983	113 mm10 Jul 2017	251 mm2017 · driest 17 mm in 1946	83
August	38.9°C4 Aug 1947	4.4°C31 Aug 1978	124 mm14 Aug 1987	321 mm1987 · driest 7 mm in 1949	82
September	37.8°C1 Sep 1953	-1.1°C30 Sep 1974	106 mm11 Sep 2022	298 mm1970 · driest 1 mm in 1979	82
October	31.7°C2 Oct 1967	-6.7°C24 Oct 1981	144 mm21 Oct 1965	178 mm1965 · driest 2 mm in 1956	82
November	27.2°C1 Nov 1944	-20.6°C29 Nov 1976	61 mm13 Nov 1951	170 mm1985 · driest 5 mm in 1999	82
December	21.1°C5 Dec 2001	-33.9°C24 Dec 1983	70 mm2 Dec 1982	132 mm1987 · driest 5 mm in 1962	81

Typical days per month at KENOSHA WWTP, 1991–2020
Month	Days 25°C+	Days 30°C+	Frost nights	Heavy rain (10 mm+)	Snow days
January	0	0	28	1	7
February	0	0	25	2	5
March	<1	0	21	2	3
April	1	<1	6	4	<1
May	5	<1	<1	4	0
June	11	3	0	4	0
July	19	7	0	3	0
August	18	4	0	3	0
September	8	1	0	3	0
October	2	<1	2	3	0
November	0	0	14	2	1
December	0	0	25	2	4

The best month has moved. On the 1961–1990 numbers the strongest month here was August (scoring 85); on 2011–2025 it is June (89). Both are scored the same way, from the same station — only the climate underneath changed.

How often, not how much — every day in KENOSHA WWTP’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%	21%	4%	19%	-4.8–2.2°C
February	0%	20%	4%	17%	-2.7–4.4°C
March	3%	25%	7%	29%	3.3–9.0°C
April	10%	31%	11%	38%	9.2–14.3°C
May	25%	30%	10%	36%	15.1–20.4°C
June	52%	28%	11%	32%	21.1–26.2°C
July	72%	24%	10%	25%	24.4–28.6°C
August	73%	24%	10%	22%	24.3–28.0°C
September	55%	23%	10%	24%	20.5–24.2°C
October	20%	23%	7%	24%	13.4–18.7°C
November	3%	24%	6%	24%	5.5–11.5°C
December	0%	23%	5%	23%	-1.3–5.0°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.

1946Each stripe is one year’s mean temperature against the 77-year average. Warmest: 2012. Coolest: 1982.2024

The evidence behind this page

Nearby, measured,
and named.

Place identity: GeoNames 5274542
NOAA station: USC00474174 · KENOSHA WWTP
Station distance: 7.4 km from the place centre
Climate period: 1991–2020
Minimum month coverage: 29 usable years
Daylight: Calculated from latitude 42.49°, mid-month, sunrise to sunset including refraction. Not a station measurement.
Sea temperature: NOAA OISST v2.1 1991–2020 monthly climatology, nearest open water 14 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 KENOSHA WWTP is what differs

Kenosha→Kenosha Streetcar→Carol Beach→South Kenosha→Tobin→Timber Ridge→

Or put two places side by side: State Line vs Kenosha

Best time to visitState Line.