Green Bay, WI

Wisconsin · Records since 1886–2026

☁️ 65°F Feels like 68°
Currently in Green Bay
As of 5:45 AM CDT

Records for August 11

🔥 Record High

95°F

August 11, 1944

+15° from 80° normal

❄ Record Low

40°F

August 11, 1967

-19° from 59° normal
🌞 Normal high: 80°F 🌑 Normal low: 59°F 1991–2020 normals

All-Time Records — Green Bay

🔥
104°F
Hottest Day Ever
Jul 13, 1936
-36°F
Coldest Day Ever
Jan 21, 1888
🌧
4.90"
Wettest Day Ever
Jun 22, 1990
24.0"
Most Snow in One Day
Mar 1, 1888

Top 10 Record Highs — August 11

# Temp Date
🏆 95°F August 11, 1944
2 94°F August 11, 1947
3 91°F August 11, 1935
4 91°F August 11, 1905
5 90°F August 11, 2002
6 89°F August 11, 2007
7 89°F August 11, 1920
8 88°F August 11, 1995
9 88°F August 11, 1976
10 87°F August 11, 2016

Top 5 Record Lows — August 11

# Temp Date
🥶 40°F August 11, 1967
2 43°F August 11, 1950
3 44°F August 11, 1982
4 45°F August 11, 1954
5 46°F August 11, 1968
About this data — Records are sourced from the NOAA Threadex dataset via RCC ACIS, a quality-controlled record for long-term climate stations. Threadex adjusts for station relocations and observation-time changes, making records comparable across all years since 1886–2026. Climate normals represent the 1991–2020 average.

Heat Wave Summary — Green Bay

threshold: 88°F (90th percentile of historical Jun–Aug highs)
4.0
Avg heat wave length
days (historical)
94°
Avg peak temp
during heat waves
2
Dangerous nights 2026
Overnights ≥ 70°F
1
Heat waves 2026
so far

2026 Daily High Temperature vs Normal

Year to date
Above normal Below normal

121 of 222 days with data were above the 1991–2020 normal high for their date.


Days ≥ 90°F Per Year

1886–2026
5
2026 so far
8
Avg/year 1970–2025
6
Avg/year (last 10 complete)
34
Most in a year (1988)

Average Daily High by Decade

Full year · complete decades only


Longest Heat Waves — Green Bay

# Dates Days Peak Avg High Avg Overnight Low
🏆 Aug 26, 1973 – Sep 3, 1973 9 96°F (Aug 27) 91°F 68°F
2 Aug 26, 1937 – Sep 3, 1937 9 94°F (Aug 31) 91°F 68°F
3 Jul 7, 1936 – Jul 14, 1936 8 104°F (Jul 13) 100°F 74°F
4 Jul 22, 1941 – Jul 29, 1941 8 99°F (Jul 29) 94°F 73°F
5 Aug 14, 1955 – Aug 21, 1955 8 99°F (Aug 21) 93°F 63°F
6 Jun 30, 1921 – Jul 7, 1921 8 97°F (Jul 6) 94°F 71°F
7 Jun 17, 1995 – Jun 24, 1995 8 96°F (Jun 18) 93°F 67°F
8 Jul 17, 1987 – Jul 24, 1987 8 93°F (Jul 19) 91°F 68°F
9 Jun 26, 1910 – Jul 2, 1910 7 100°F (Jun 30) 94°F 67°F
10 Jun 30, 2012 – Jul 6, 2012 7 99°F (Jul 5) 93°F 67°F

Heat Waves Per Year


Warm Summer Nights (Jun–Aug)

Nights where the overnight low exceeded the 1991–2020 normal low

34
2026 so far
above-normal nights
38.6
Avg / summer
1970–2020
69
Most in a summer
1921

Above-Normal Summer Nights Per Year

Average June–August Low by Decade

Overnight lows · complete decades only

Precipitation

Actual vs. 1991–2020 full-month and full-season normals

28.26"
2026 YTD
Normal: 19.71"
+8.55"
0.63"
August so far
August normal: 3.39"
-2.76"
10.85"
Summer so far
Summer normal: 11.11"
-0.26"
8
2026 heavy rain days
Days with ≥ 1.0"

Monthly Precipitation — Last 24 Months

Blue = actual · dashed line = monthly normal

Annual Precipitation Per Year (1970–2026)

Blue = above average · tan = below average · gold = 2026 (partial)

Heavy Rain Days Per Year (≥ 1.0")

Compare year-to-year changes in days with heavy rainfall (≥ 1.0")

Month in Review — July 2026

72.3°F

Average temperature · July 2026

39th-warmest month on record

30th-warmest July of 140 on record

+2.0° vs. 70.3° average (1991–2020)
77.3°F
Warmest month ever
July 1921
77.3°F
Warmest July ever
1921
2
Days ≥ 90°F
in July
93°F
Hottest of 2026
Jul 14

Longest 90°F Streak in July

2 consecutive days with highs of at least 90°F (Jul 13–14, 2026, peaking at 93°F)

Ties the longest July streak since 2023 (3 years). The July record is 8 days, set in 1936.


Average July Temperature by Year

1887–2026 · 2026 highlighted


Warmest Julys on Record

# Year Avg Temp
1 1921 77.3°F
2 1916 76.4°F
3 2012 76.1°F
4 1935 75.4°F
5 1936 75.1°F
6 2011 75.1°F
7 1931 75.0°F
8 1887 74.1°F
9 1955 74.1°F
10 2020 73.9°F

Warmest Months on Record (Any Month)

# Month Avg Temp
1 July 1921 77.3°F
2 July 1916 76.4°F
3 July 2012 76.1°F
4 July 1935 75.4°F
5 August 1900 75.2°F
6 July 1936 75.1°F
7 August 1947 75.1°F
8 July 2011 75.1°F
9 July 1931 75.0°F
10 August 1937 74.7°F

Nearby Stations — July 2026

How the same month ranked at the closest reporting stations

Station Avg Temp July Rank
Green Bay, WI 72.3°F 30th of 140
Wausau, WI 73.3°F 16th of 127
Milwaukee, WI 75.0°F 15th of 156
Rhinelander, WI 70.1°F 19th of 109
Madison, WI 74.5°F 29th of 158
About this data. Monthly averages are the mean of daily average temperatures, computed from NOAA Threadex records via RCC ACIS. Months missing more than three days of observations are excluded from the rankings, so the in-progress month never appears. Rankings cover 1679 complete months on record.