What is the hottest month in Sturgeon Bay?

July is the warmest month in Sturgeon Bay, with an average high of 78.0°F.

What is the coldest month in Sturgeon Bay?

January is the coldest month in Sturgeon Bay, with an average low of 10.4°F.

What month does Sturgeon Bay get the most rain?

June is typically the wettest month in Sturgeon Bay, with about 4.12 inches of precipitation.

What plant hardiness zone is Sturgeon Bay in?

Sturgeon Bay is approximately in USDA plant hardiness Zone 6b, based on the average annual extreme minimum temperature.

Has the climate in Sturgeon Bay changed recently?

9% of Sturgeon Bay's all-time daily heat records were set in the last decade (since 2015), compared to roughly 5% if records were evenly distributed over time.

Sturgeon Bay, WI

Climate overview — based on NOAA 1991-2020 normals from STURGEON BAY EXP FARM, WI US.

Dfb Warm-summer humid continental climate 6b USDA hardiness Zone 6b

Year-round temperatures (°F)

Avg high Avg low

Climate summary

Sturgeon Bay has an annual average temperature of 44°F with about 32.9 inches of precipitation per year and 57.4 inches of snow. The warmest month is July (average high 78.0°F), and the coldest is January (average low 10.4°F). June is typically the wettest month (4.12 in) and February the driest (1.34 in). Snow typically falls from October through April.

Pleasant months

4 / 12

avg high 65–80°F, low ≥ 50°F

Annual swing

50.6°F

warmest to coldest month

Heating need

7,749

HDD/yr

Cooling need

177

CDD/yr

Best time to visit Sturgeon Bay

Full guide →

Climate change signal

All-time records →

33 of 366 (9%) of Sturgeon Bay's all-time daily heat records have been set since 2015. If records were spread evenly across the station's history, only about 5% would fall in any given decade.

1900s		10
1910s		30
1920s		46
1930s		50
1940s		34
1950s		29
1960s		26
1970s		14
1980s		20
1990s		31
2000s		29
2010s		23
2020s		24

Bars: number of all-time daily heat records still standing that were set in each decade.

Monthly averages

Month	Avg High	Avg Low	Avg Temp	Precipitation	Snow	Rainy days
January	25.2°F	10.4°F	17.8°F	1.71 in	15.6 in	11
February	28.1°F	11.9°F	20.0°F	1.34 in	12.9 in	8
March	37.9°F	21.3°F	29.6°F	1.90 in	8.6 in	9
April	50.1°F	32.0°F	41.0°F	3.07 in	4.0 in	10
May	62.4°F	42.5°F	52.5°F	3.32 in	—	12
June	72.6°F	52.9°F	62.8°F	4.12 in	—	11
July	78.0°F	58.8°F	68.4°F	3.57 in	—	11
August	76.8°F	58.2°F	67.5°F	3.32 in	—	10
September	69.1°F	50.7°F	59.9°F	3.10 in	—	10
October	55.9°F	39.4°F	47.7°F	3.24 in	0.2 in	11
November	42.4°F	28.9°F	35.6°F	2.20 in	2.4 in	10
December	31.1°F	18.5°F	24.8°F	1.97 in	13.7 in	10