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Monthly climate in Sturgeon Bay, Wisconsin, United States

Last updated: March 2, 2024

Under the Köppen–Geiger climate classification Sturgeon Bay features a humid continental climate (Dfb). Temperatures typically range between -5 °C (22 °F) and 22 °C (72 °F) through the year, but rarely can drop to -28 °C (-18 °F) or can rise to as high as 31 °C (89 °F). The average annual precipitation amounts to about 898 mm (35.3 inches) and receives 118 rainy days on the 1 mm (0.04 inches) threshold annually. Sturgeon Bay enjoys an average of 2992 hours of sunshine throughout the year, and daylight varies from 8 hours 50 minutes to 15 hours 30 minutes per day.

Monthly average temperatures in Sturgeon Bay, Wisconsin, United States §

The warmest months in Sturgeon Bay are June, July and August, with daily mean temperatures ranging from 18 to 22 °C (64 - 72 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from -5 to -2 °C (22 - 29 °F) throughout the day. On average each year, Sturgeon Bay experiences 30 days above 25 °C (77.0 °F) and 119 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Sturgeon Bay, Wisconsin, United States. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to June 2022.
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Maximum 7°C
(45°F)		 12°C
(54°F)		 13°C
(56°F)		 19°C
(66°F)		 25°C
(77°F)		 29°C
(85°F)		 31°C
(89°F)		 29°C
(85°F)		 29°C
(85°F)		 23°C
(74°F)		 19°C
(67°F)		 15°C
(59°F)
Mean maximum 5°C
(41°F)		 8°C
(46°F)		 10°C
(50°F)		 15°C
(60°F)		 23°C
(74°F)		 27°C
(81°F)		 30°C
(87°F)		 28°C
(84°F)		 27°C
(80°F)		 23°C
(73°F)		 14°C
(57°F)		 10°C
(50°F)
Average high -3°C
(27°F)		 -2°C
(28°F)		 3°C
(37°F)		 8°C
(46°F)		 15°C
(58°F)		 21°C
(70°F)		 25°C
(77°F)		 24°C
(76°F)		 20°C
(69°F)		 13°C
(56°F)		 5°C
(42°F)		 1°C
(33°F)
Daily mean -5°C
(23°F)		 -5°C
(22°F)		 -0°C
(32°F)		 5°C
(41°F)		 11°C
(53°F)		 18°C
(64°F)		 22°C
(72°F)		 21°C
(70°F)		 17°C
(63°F)		 11°C
(51°F)		 3°C
(37°F)		 -2°C
(29°F)
Average low -8°C
(18°F)		 -9°C
(17°F)		 -3°C
(26°F)		 2°C
(35°F)		 8°C
(47°F)		 15°C
(58°F)		 19°C
(66°F)		 18°C
(64°F)		 14°C
(58°F)		 8°C
(46°F)		 0°C
(33°F)		 -4°C
(24°F)
Mean minimum -19°C
(-2°F)		 -20°C
(-4°F)		 -13°C
(10°F)		 -4°C
(24°F)		 2°C
(36°F)		 10°C
(50°F)		 15°C
(59°F)		 13°C
(56°F)		 8°C
(47°F)		 1°C
(34°F)		 -7°C
(19°F)		 -15°C
(5°F)
Minimum -25°C
(-14°F)		 -28°C
(-18°F)		 -21°C
(-5°F)		 -9°C
(15°F)		 0°C
(32°F)		 7°C
(45°F)		 13°C
(57°F)		 12°C
(53°F)		 5°C
(41°F)		 -1°C
(31°F)		 -10°C
(14°F)		 -23°C
(-9°F)

Compare climate in Sturgeon Bay with other places

Compare temperature, precipitation, sunshine, UV index in Sturgeon Bay, Wisconsin, United States with other places around the world.

Monthly average precipitation in Sturgeon Bay, Wisconsin, United States §

Sturgeon Bay usually has the most precipitation in June, August and October, with an average of 11 rainy days and 99 mm (3.9 inches) of precipitation per month. The driest months in Sturgeon Bay are January, February and November. On average, 48 mm (1.9 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Sturgeon Bay, Wisconsin, United States. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to January 2022.
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Average precipitation mm (inches) 42 (1.6) 50 (2.0) 58 (2.3) 92 (3.6) 95 (3.8) 101 (4.0) 90 (3.6) 96 (3.8) 66 (2.6) 99 (3.9) 53 (2.1) 56 (2.2)
Average precipitation days (≥ 1 mm) 7 10 8 12 11 12 11 10 10 12 7 8

Monthly sunshine hours in Sturgeon Bay, Wisconsin, United States §

The sunniest months in Sturgeon Bay are June, July and August, when the sun shines an average of 11 hours 20 minutes a day. Least sunny months in Sturgeon Bay: January, November and December receive an average of 4 hours 48 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Sturgeon Bay, Wisconsin, United States. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2017 to January 2022.
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Mean monthly sunshine hours 117 201 249 250 310 339 368 335 278 217 176 148
Mean daily daylight hours 9h 13m 10h 26m 11h 57m 13h 31m 14h 50m 15h 30m 15h 8m 13h 57m 12h 27m 10h 54m 9h 32m 8h 50m

Solar UV radiation in Sturgeon Bay, Wisconsin, United States §

Sturgeon Bay experiences the highest level of ultraviolet (UV) radiation in May, June and August, when the maximum UV index can reach values of 9 - 10, which corresponds to the Very High category of sun exposure. January, November and December are in the Low / Moderate exposure category. In these months, the maximum values of the UV index do not exceed 3. For more detailed information, check out our hourly Sturgeon Bay UV Index data.

Average daily maximum UV levels by month for Sturgeon Bay, Wisconsin, United States. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2022 to January 2023.
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
UV Index (month maximum) 2 4 5 7 9 10 9 9 7 5 3 2

Detailed Monthly Weather Insights for Sturgeon Bay, Wisconsin, United States

Discover in-depth weather details for every month in Sturgeon Bay. Click through the links below for comprehensive overviews of temperature trends, precipitation levels, sunshine hours, and solar UV radiation specifics. Whether planning a visit or simply curious about Sturgeon Bay's climate nuances, these monthly breakdowns provide the information you need for an informed understanding of what to expect throughout the year.

Each link leads to a detailed account of the typical weather conditions for that month, providing both locals and tourists with vital information to plan their daily activities, wardrobe, and travel itineraries accordingly.