United States · 1991–2020

Best time to visit
Ironton.

September leads for comfortable weather in Ironton: typically 22.7°C by day, 10.3°C at night, with 94 mm of rain. Based on measured 1991–2020 NOAA station history.

Best comfortSeptember

Typical high22.7°C

Typical low10.3°C

Rain in September94 mm

Comfort

September

September · August · June

74climate match

Beach

July

July · August · June

65climate match

Outdoors

September

September · May · October

74climate match

The weakest month is January, scoring 5 against September’s 74 — days reach only -2.6°C, 27° 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

5-2.6° / -12.4°

Feb

5-1.1° / -12.2°

Mar

56.4° / -4.5°

Apr

2814° / 1.8°

May

5720.4° / 8.3°

Jun

7225.8° / 14.1°

Jul

7028° / 16.2°

Aug

7326.8° / 14.9°

Sep

7422.7° / 10.3°

Oct

3715° / 3.5°

Nov

107.7° / -2.2°

Dec

50.5° / -8.2°

Monthly climate evidence for Ironton — daylight is calculated from latitude, everything else is measured
Month	Day	Night	Rain	Wet days	Daylight	Comfort	Coverage
January	-2.6°C	-12.4°C	35 mm	6.4	9 h 17	5	Good coverage
February	-1.1°C	-12.2°C	39 mm	6.6	10 h 25	5	Good coverage
March	6.4°C	-4.5°C	60 mm	7.6	11 h 47	5	Good coverage
April	14°C	1.8°C	101 mm	10.1	13 h 21	28	Good coverage
May	20.4°C	8.3°C	120 mm	11.3	14 h 41	57	Good coverage
June	25.8°C	14.1°C	140 mm	9.7	15 h 24	72	Good coverage
July	28°C	16.2°C	109 mm	8.1	15 h 07	70	Good coverage
August	26.8°C	14.9°C	130 mm	8	13 h 58	73	Good coverage
September	22.7°C	10.3°C	94 mm	8.7	12 h 27	74	Good coverage
October	15°C	3.5°C	85 mm	8.8	10 h 56	37	Good coverage
November	7.7°C	-2.2°C	54 mm	6.5	9 h 37	10	Good coverage
December	0.5°C	-8.2°C	55 mm	7.9	8 h 57	5	Good coverage

What has changed

Ironton runs -0.2°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

-0.1

Feb

-0.8

Mar

+0.5

Apr

-1.9

May

-1.0

Jun

-0.1

Jul

-0.5

Aug

-0.2

Sep

+1.1

Oct

-0.5

Nov

+0.1

Dec

+1.5

September daytime highs, 2011–2025. Last recorded: 24.6°C.

Records at REEDSBURG WWTP, 1893–2026
Month	Record high	Record low	Wettest day	Wettest / driest month	Years
January	15.6°C31 Jan 2025	-41.1°C30 Jan 1951	47 mm9 Jan 2026	78 mm2017 · driest 1 mm in 1981	75
February	22.2°C28 Feb 2024	-40.0°C1 Feb 1918	31 mm21 Feb 1976	82 mm1971 · driest 1 mm in 1982	75
March	29.4°C29 Mar 1986	-36.7°C1 Mar 1962	65 mm16 Mar 2016	144 mm2016 · driest 5 mm in 1978	79
April	35.0°C22 Apr 1980	-16.7°C7 Apr 1982	67 mm14 Apr 2014	216 mm2026 · driest 19 mm in 1946	77
May	34.4°C29 May 2018	-5.0°C4 May 1966	75 mm25 May 1950	287 mm2004 · driest 8 mm in 1988	79
June	39.4°C20 Jun 1988	1.1°C2 Jun 1956	93 mm23 Jun 1917	251 mm2014 · driest 22 mm in 2023	77
July	40.0°C31 Jul 1988	5.0°C3 Jul 1968	122 mm15 Jul 2010	319 mm2010 · driest 2 mm in 2012	77
August	39.4°C1 Aug 1988	1.1°C30 Aug 1915	154 mm2 Aug 2001	404 mm2007 · driest 1 mm in 1894	78
September	36.7°C9 Sep 1955	-4.4°C22 Sep 1974	102 mm22 Sep 2016	327 mm1965 · driest 3 mm in 1979	77
October	32.8°C1 Oct 1976	-12.8°C30 Oct 1988	119 mm23 Oct 2020	170 mm2019 · driest 0 mm in 1953	78
November	24.4°C3 Nov 1964	-24.4°C26 Nov 1977	54 mm12 Nov 1982	140 mm1985 · driest 2 mm in 1917	77
December	18.9°C16 Dec 2021	-32.8°C21 Dec 1989	51 mm14 Dec 2015	140 mm2007 · driest 1 mm in 1947	78

Typical days per month at REEDSBURG WWTP, 1991–2020
Month	Days 25°C+	Days 30°C+	Frost nights	Heavy rain (10 mm+)	Snow days
January	0	0	30	<1	6
February	0	0	27	1	7
March	<1	0	24	2	3
April	2	<1	11	3	1
May	8	1	1	4	0
June	19	4	0	4	0
July	26	10	0	4	0
August	23	6	0	3	0
September	12	2	<1	3	0
October	2	<1	10	3	<1
November	0	0	21	2	1
December	0	0	29	1	5

The best month has moved. On the 1961–1990 numbers the strongest month here was June (scoring 79); on 2011–2025 it is September (83). Both are scored the same way, from the same station — only the climate underneath changed.

How often, not how much — every day in REEDSBURG 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%	18%	2%	14%	-6.1–0.2°C
February	<1%	17%	3%	14%	-3.4–3.5°C
March	3%	22%	6%	24%	3.2–10.6°C
April	18%	30%	10%	37%	11.6–17.5°C
May	46%	30%	10%	37%	18.6–23.8°C
June	66%	31%	13%	36%	24.4–28.2°C
July	75%	25%	11%	26%	26.7–30.4°C
August	74%	25%	10%	26%	25.3–29.5°C
September	55%	27%	11%	29%	20.8–24.6°C
October	25%	22%	7%	21%	13.4–19.5°C
November	3%	21%	6%	20%	4.4–10.2°C
December	0%	21%	4%	17%	-3.5–3.2°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.

1915Each stripe is one year’s mean temperature against the 63-year average. Warmest: 2012. Coolest: 1917.2025

The evidence behind this page

Nearby, measured,
and named.

Place identity: GeoNames 5257567
NOAA station: USC00477052 · REEDSBURG WWTP
Station distance: 11.7 km from the place centre
Climate period: 1991–2020
Minimum month coverage: 18 usable years
Daylight: Calculated from latitude 43.55°, 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 REEDSBURG WWTP is what differs

Reedsburg→La Valle→Cazenovia→Lime Ridge→The Courtyards→Maple Aire Mobile Village→

Or put two places side by side: Ironton vs Reedsburg

Best time to visitIronton.

September

July

September

The whole year,without the guesswork.

Ironton runs -0.2°Con the 1961–1990 baseline.

Nearby, measured,and named.

Best time to visit
Ironton.

The whole year,
without the guesswork.

Ironton runs -0.2°C
on the 1961–1990 baseline.

Nearby, measured,
and named.