Green Bay, Wisconsin Climate
United States
Pop. 105,207 Elev. 182 m / 597 ft
TZ: America/Chicago (UTC-5) ·
Green Bay has a dry climate with warm summers reaching 81°F (27°C) in July and cold winters averaging 12°F (-11°C) in January. Humidity pushes the summer feels-like temperature to 86°F (30°C), while wind chill can drive winter lows to 2°F (-17°C). Rain falls on about 39 days per year (25.3 in / 642 mm total), with snow on 10 days and 57 in (1437 mm) of annual accumulation. The city averages 116 sunny days per year and around 23 thunderstorm days. Ocean water temperatures reach 75°F (24°C) in summer.
| Temperature | 81°F (27°C) high | 12°F (-11°C) low |
| Feels like | 86°F (30°C) high | 2°F (-17°C) low |
| Rain | 39 days | 25.3 in (642 mm) /yr |
| Snow | 10 days | 56.6 in (1437 mm) /yr |
| Sky | 116 sunny | 23 stormy |
| Wind | 2.9 mph (1.3 m/s) avg |
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Explore on the MapMonthly Climate Chart
Best months to visit: May, Sep, Oct
Sky & Air by Month
Cloud cover (%)
48
Jan 63
Feb 66
Mar 62
Apr 55
May 60
Jun 51
Jul 48
Aug 48
Sep 45
Oct 55
Nov 72
Dec Humidity (%)
58
Jan 67
Feb 62
Mar 62
Apr 63
May 67
Jun 71
Jul 73
Aug 76
Sep 72
Oct 68
Nov 78
Dec Weather Days by Month
Water Temperatures
Cities with Similar Climate
Find similar cities on the map →Nearby Cities
Nearby
Commercial airport 6 mi Austin Straubel International Airport (GRB)
Ski resort 53 mi Nutt Hill
National park 162 mi Pictured Rocks National Lakeshore (Inner Buffer Zone)
Hospital 1 mi Bellin Hospital Green Bay
Hiking trail 5 mi Barkhausen County Park
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Monthly Weather Data
↑ See chart| Month | Avg High | Avg Low | Rainfall | Snowfall | Sunny Days |
|---|---|---|---|---|---|
| January | 28°F -2°C | 12°F -11°C | 0.0 in 0 mm | 2.6 in67 mm | 15 |
| February | 29°F -2°C | 13°F -10°C | 0.0 in 1 mm | 13.9 in353 mm | 7 |
| March | 47°F 9°C | 29°F -2°C | 2.8 in 71 mm | 14.1 in358 mm | 7 |
| April | 54°F 12°C | 36°F 2°C | 2.9 in 74 mm | 4.8 in121 mm | 5 |
| May | 65°F 18°C | 46°F 8°C | 2.3 in 58 mm | — | 12 |
| June | 78°F 26°C | 60°F 15°C | 3.5 in 89 mm | — | 7 |
| July | 81°F 27°C | 64°F 18°C | 4.3 in 108 mm | — | 13 |
| August | 77°F 25°C | 59°F 15°C | 4.6 in 117 mm | — | 13 |
| September | 73°F 23°C | 54°F 12°C | 2.1 in 54 mm | — | 12 |
| October | 63°F 17°C | 45°F 7°C | 1.6 in 41 mm | — | 12 |
| November | 45°F 7°C | 31°F -1°C | 0.5 in 13 mm | 6.5 in164 mm | 9 |
| December | 28°F -2°C | 14°F -10°C | 0.6 in 15 mm | 14.7 in373 mm | 4 |
Weather Days by Month
↑ See chart| Month | Sunny Days | Storm Days |
|---|---|---|
| January | 15 | 0 |
| February | 7 | 0 |
| March | 7 | 2 |
| April | 5 | 2 |
| May | 12 | 0 |
| June | 7 | 4 |
| July | 13 | 5 |
| August | 13 | 6 |
| September | 12 | 4 |
| October | 12 | 0 |
| November | 9 | 0 |
| December | 4 | 0 |
Water Temperatures Data
↑ See chart| Month | Ocean Avg High | Lake Avg High |
|---|---|---|
| January | 33°F 0°C | 32°F 0°C |
| February | 34°F 1°C | 32°F 0°C |
| March | 34°F 1°C | 34°F 1°C |
| April | 44°F 7°C | 44°F 7°C |
| May | 55°F 13°C | 55°F 13°C |
| June | 66°F 19°C | 68°F 20°C |
| July | 75°F 24°C | 75°F 24°C |
| August | 73°F 23°C | 71°F 22°C |
| September | 67°F 19°C | 64°F 18°C |
| October | 66°F 19°C | 55°F 13°C |
| November | 51°F 11°C | 38°F 3°C |
| December | 39°F 4°C | 32°F 0°C |