United States · 1991–2020

Best time to visit
Blue Mounds.

September leads for comfortable weather in Blue Mounds: typically 23.9°C by day, 10.3°C at night, with 78 mm of rain. Based on measured 1991–2020 NOAA station history.

Best comfortSeptember

Typical high23.9°C

Typical low10.3°C

Rain in September78 mm

Comfort

September

September · August · June

82climate match

Beach

July

July · August · June

68climate match

Outdoors

September

September · May · October

77climate match

The weakest month is January, scoring 5 against September’s 82 — days reach only -1.8°C, 26° 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

5-1.8° / -12.1°

Feb

5-0.3° / -11.5°

Mar

56.8° / -4.7°

Apr

3214.3° / 1.3°

May

6020.8° / 8.3°

Jun

7425.6° / 13.4°

Jul

7028.5° / 16°

Aug

7727.5° / 14.8°

Sep

8223.9° / 10.3°

Oct

4415.9° / 3.5°

Nov

148.8° / -2.1°

Dec

51.1° / -8.7°

Monthly climate evidence for Blue Mounds — daylight is calculated from latitude, everything else is measured
Month	Day	Night	Rain	Wet days	Daylight	Comfort	Coverage
January	-1.8°C	-12.1°C	32 mm	4.7	9 h 20	5	Good coverage
February	-0.3°C	-11.5°C	34 mm	5	10 h 27	5	Good coverage
March	6.8°C	-4.7°C	56 mm	5.6	11 h 47	5	Good coverage
April	14.3°C	1.3°C	87 mm	7.8	13 h 20	32	Good coverage
May	20.8°C	8.3°C	116 mm	9.4	14 h 38	60	Good coverage
June	25.6°C	13.4°C	128 mm	8.6	15 h 20	74	Good coverage
July	28.5°C	16°C	110 mm	6.1	15 h 04	70	Good coverage
August	27.5°C	14.8°C	93 mm	6.2	13 h 56	77	Good coverage
September	23.9°C	10.3°C	78 mm	6	12 h 26	82	Good coverage
October	15.9°C	3.5°C	71 mm	6.4	10 h 57	44	Good coverage
November	8.8°C	-2.1°C	60 mm	5.3	9 h 40	14	Good coverage
December	1.1°C	-8.7°C	46 mm	5.3	9 h 01	5	Good coverage

Records at BLACK EARTH CK NEAR MAZOMANIE, 2001–2022
Month	Record high	Record low	Wettest day	Wettest / driest month	Years
January	13.9°C30 Jan 2013	-32.8°C27 Jan 2019	28 mm1 Jan 2019	110 mm2019 · driest 6 mm in 2004	20
February	22.8°C23 Feb 2017	-33.9°C1 Feb 2019	25 mm17 Feb 2008	73 mm2019 · driest 7 mm in 2015	19
March	28.9°C22 Mar 2012	-28.9°C5 Mar 2002	43 mm24 Mar 2017	126 mm2017 · driest 12 mm in 2018	20
April	32.2°C17 Apr 2004	-11.7°C9 Apr 2018	61 mm14 Apr 2014	179 mm2006 · driest 20 mm in 2016	20
May	35.0°C29 May 2018	-8.3°C4 May 2005	103 mm22 May 2004	293 mm2004 · driest 0 mm in 2021	19
June	36.1°C8 Jun 2011	-2.8°C21 Jun 2003	89 mm15 Jun 2016	249 mm2010 · driest 38 mm in 2019	19
July	38.9°C18 Jul 2005	6.7°C2 Jul 2005	113 mm11 Jul 2008	242 mm2017 · driest 20 mm in 2007	19
August	37.2°C21 Aug 2003	5.6°C21 Aug 2002	111 mm19 Aug 2007	236 mm2018 · driest 14 mm in 2020	20
September	35.6°C24 Sep 2017	-2.8°C24 Sep 2012	79 mm29 Sep 2015	172 mm2019 · driest 15 mm in 2017	20
October	31.7°C1 Oct 2019	-6.7°C29 Oct 2012	74 mm2 Oct 2019	146 mm2019 · driest 5 mm in 2015	20
November	24.4°C9 Nov 2020	-16.7°C10 Nov 2019	116 mm4 Nov 2003	206 mm2003 · driest 0 mm in 2007	20
December	20.6°C16 Dec 2021	-27.8°C24 Dec 2013	55 mm14 Dec 2015	111 mm2015 · driest 11 mm in 2014	20

Typical days per month at BLACK EARTH CK NEAR MAZOMANIE, 1991–2020
Month	Days 25°C+	Days 30°C+	Frost nights	Heavy rain (10 mm+)	Snow days
January	0	0	28	1	4
February	0	0	26	1	4
March	<1	0	24	2	2
April	2	<1	13	3	<1
May	8	3	2	4	0
June	18	5	<1	4	0
July	26	11	0	3	0
August	24	7	0	3	0
September	13	3	<1	2	0
October	3	<1	10	2	<1
November	0	0	19	2	<1
December	0	0	27	1	4

How often, not how much — every day in BLACK EARTH CK NEAR MAZOMANIE’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%	15%	3%	11%	-4.6–1.1°C
February	<1%	18%	4%	14%	-5.1–3.7°C
March	4%	18%	6%	15%	3.1–10.3°C
April	17%	26%	10%	34%	11.4–17.6°C
May	38%	30%	13%	38%	16.2–24.2°C
June	66%	28%	14%	31%	24.4–27.6°C
July	79%	19%	10%	19%	27.1–30.0°C
August	78%	21%	10%	18%	25.5–29.4°C
September	65%	19%	8%	16%	21.7–25.9°C
October	22%	21%	7%	18%	12.2–19.3°C
November	6%	17%	6%	16%	4.7–12.2°C
December	<1%	18%	5%	11%	-2.5–4.8°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.

The evidence behind this page

Nearby, measured,
and named.

Place identity: GeoNames 5246270
NOAA station: USC00475189 · BLACK EARTH CK NEAR MAZOMANIE
Station distance: 17.7 km from the place centre
Climate period: 1991–2020
Minimum month coverage: 17 usable years
Daylight: Calculated from latitude 43.02°, 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 BLACK EARTH CK NEAR MAZOMANIE is what differs

Mount Horeb→Cross Plains→Mazomanie→Black Earth→Vermont→Arena→

Or put two places side by side: Blue Mounds vs Mount Horeb

Best time to visitBlue Mounds.

September

July

September

The whole year,without the guesswork.

Nearby, measured,and named.

Best time to visit
Blue Mounds.

The whole year,
without the guesswork.

Nearby, measured,
and named.