United States · 1991–2020

Best time to visit
Allouez.

August leads for comfortable weather in Allouez: typically 26.1°C by day, 14.2°C at night, with 86 mm of rain. Based on measured 1991–2020 NOAA station history.

Best comfortAugust

Typical high26.1°C

Typical low14.2°C

Rain in August86 mm

Comfort

August

August · June · July

80climate match

Beach

July

July · August · June

63climate match

Outdoors

September

September · May · October

80climate match

The weakest month is January, scoring 5 against August’s 80 — days reach only -3.5°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

5-3.5° / -11.9°

Feb

5-1.6° / -10.7°

Mar

54.7° / -4.8°

Apr

2512.2° / 1.3°

May

5919.6° / 7.5°

Jun

7924.8° / 13.2°

Jul

7627.3° / 15.3°

Aug

8026.1° / 14.2°

Sep

7422.1° / 9.8°

Oct

4014.5° / 3.8°

Nov

66.5° / -2.1°

Dec

5-0.4° / -8.1°

Monthly climate evidence for Allouez — daylight is calculated from latitude, everything else is measured, sea temperature from the nearest open water 20 km away
Month	Day	Night	Rain	Wet days	Sea	Daylight	Comfort	Coverage
January	-3.5°C	-11.9°C	35 mm	6.8	2.6°C	9 h 11	5	Strong coverage
February	-1.6°C	-10.7°C	31 mm	5.6	1.7°C	10 h 22	5	Strong coverage
March	4.7°C	-4.8°C	50 mm	7.7	1.2°C	11 h 46	5	Strong coverage
April	12.2°C	1.3°C	76 mm	8.8	2.6°C	13 h 24	25	Strong coverage
May	19.6°C	7.5°C	85 mm	9.6	5.9°C	14 h 46	59	Strong coverage
June	24.8°C	13.2°C	104 mm	9.2	11.2°C	15 h 31	79	Strong coverage
July	27.3°C	15.3°C	92 mm	8.3	18.2°C	15 h 13	76	Strong coverage
August	26.1°C	14.2°C	86 mm	8.1	20.6°C	14 h 02	80	Strong coverage
September	22.1°C	9.8°C	81 mm	7.3	18.0°C	12 h 28	74	Strong coverage
October	14.5°C	3.8°C	68 mm	7.9	12.6°C	10 h 54	40	Strong coverage
November	6.5°C	-2.1°C	50 mm	6.7	7.7°C	9 h 32	6	Strong coverage
December	-0.4°C	-8.1°C	45 mm	7	4.1°C	8 h 51	5	Strong coverage

What has changed

Allouez runs +1.2°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

+2.2

Feb

+1.3

Mar

+1.7

Apr

-0.6

May

+0.7

Jun

+0.9

Jul

+0.5

Aug

+0.6

Sep

+2.1

Oct

+1.2

Nov

+1.3

Dec

+2.9

August daytime highs, 2011–2025. Last recorded: 25.3°C.

Records at GREEN BAY, 1886–2026
Month	Record high	Record low	Wettest day	Wettest / driest month	Years
January	13.3°C25 Jan 1944	-37.8°C21 Jan 1888	45 mm9 Jan 1889	95 mm1889 · driest 3 mm in 1981	140
February	21.1°C27 Feb 2024	-36.1°C10 Feb 1899	52 mm22 Feb 1922	115 mm1922 · driest 1 mm in 1969	140
March	27.8°C29 Mar 1910	-33.9°C1 Mar 1962	61 mm1 Mar 1888	153 mm2022 · driest 4 mm in 1999	140
April	31.7°C22 Apr 1980	-13.9°C3 Apr 1954	50 mm29 Apr 1896	217 mm2026 · driest 13 mm in 1989	140
May	37.2°C31 May 1934	-6.1°C9 May 1966	75 mm28 May 2020	247 mm1918 · driest 2 mm in 1988	140
June	38.3°C1 Jun 1934	0.0°C6 Jun 1958	125 mm22 Jun 1990	262 mm1990 · driest 8 mm in 1976	140
July	40.0°C13 Jul 1936	4.4°C6 Jul 1965	112 mm23 Jul 1912	242 mm2010 · driest 18 mm in 1946	140
August	37.8°C24 Aug 1948	3.3°C22 Aug 1950	97 mm28 Aug 1975	230 mm1975 · driest 9 mm in 1899	139
September	36.1°C10 Sep 1931	-4.4°C29 Sep 1949	90 mm16 Sep 1888	238 mm2019 · driest 7 mm in 1976	140
October	31.1°C6 Oct 1963	-13.3°C25 Oct 1887	87 mm2 Oct 1954	137 mm1886 · driest 0 mm in 1952	140
November	23.9°C2 Nov 2022	-24.4°C28 Nov 1887	57 mm1 Nov 1985	157 mm1934 · driest 3 mm in 2007	140
December	18.3°C16 Dec 2021	-32.8°C19 Dec 1983	49 mm14 Dec 1891	145 mm2015 · driest 1 mm in 1943	140

Typical days per month at GREEN BAY, 1991–2020
Month	Days 25°C+	Days 30°C+	Frost nights	Heavy rain (10 mm+)	Snow days
January	0	0	30	<1	10
February	0	0	27	<1	8
March	<1	0	25	2	6
April	1	0	12	3	3
May	6	2	1	3	<1
June	16	4	0	4	0
July	24	7	0	3	0
August	21	4	0	3	0
September	10	2	<1	3	0
October	2	<1	8	2	<1
November	0	0	21	1	4
December	0	0	28	1	9

How often, not how much — every day in GREEN BAY’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%	3%	20%	-7.9–-1.0°C
February	0%	20%	3%	18%	-6.2–1.0°C
March	1%	24%	6%	27%	0.1–7.2°C
April	9%	28%	8%	34%	9.3–14.7°C
May	33%	29%	9%	35%	16.0–21.7°C
June	61%	29%	10%	35%	21.8–26.8°C
July	73%	26%	9%	26%	25.3–29.2°C
August	71%	25%	9%	26%	24.0–27.5°C
September	46%	26%	8%	28%	19.2–23.9°C
October	16%	23%	6%	23%	12.0–17.3°C
November	1%	23%	5%	23%	2.6–8.8°C
December	0%	21%	3%	20%	-5.1–2.1°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.

1887Each stripe is one year’s mean temperature against the 139-year average. Warmest: 2024. Coolest: 1917.2025

The evidence behind this page

Nearby, measured,
and named.

Place identity: GeoNames 5243770
NOAA station: USW00014898 · GREEN BAY
Station distance: 7.9 km from the place centre
Climate period: 1991–2020
Minimum month coverage: 30 usable years
Daylight: Calculated from latitude 44.48°, mid-month, sunrise to sunset including refraction. Not a station measurement.
Sea temperature: NOAA OISST v2.1 1991–2020 monthly climatology, nearest open water 20 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 GREEN BAY is what differs

De Pere→Ashwaubenon→

Or put two places side by side: Allouez vs De Pere

Best time to visitAllouez.