nomadseason

Monthly climate in Brown Deer, Wisconsin, United States

Last updated: May 6, 2024

Under the Köppen–Geiger climate classification Brown Deer features a humid continental climate (Dfb).Temperatures typically range between -4 °C (24 °F) and 22 °C (72 °F) through the year, but rarely can drop to -29 °C (-20 °F) or can rise to as high as 31 °C (88 °F).The average annual precipitation amounts to about 1012 mm (39.8 inches) and receives 117 rainy days on the 1 mm (0.04 inches) threshold annually.Brown Deer enjoys an average of 2964 hours of sunshine throughout the year, and daylight varies from 9 hours 1 minutes to 15 hours 18 minutes per day.

Monthly average temperatures in Brown Deer, Wisconsin, United States §

The warmest months in Brown Deer are July, August and September, with daily mean temperatures ranging from 18 to 22 °C (65 - 72 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from -4 to 0 °C (24 - 32 °F) throughout the day. On average each year, Brown Deer experiences 35 days above 25 °C (77.0 °F) and 111 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Brown Deer, 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 11°C
(52°F)		 16°C
(60°F)		 15°C
(59°F)		 22°C
(71°F)		 27°C
(81°F)		 29°C
(84°F)		 31°C
(88°F)		 31°C
(88°F)		 29°C
(85°F)		 26°C
(79°F)		 20°C
(68°F)		 17°C
(63°F)
Mean maximum 8°C
(46°F)		 10°C
(51°F)		 13°C
(56°F)		 18°C
(66°F)		 24°C
(76°F)		 27°C
(81°F)		 30°C
(86°F)		 29°C
(85°F)		 28°C
(82°F)		 25°C
(77°F)		 15°C
(60°F)		 12°C
(55°F)
Average high -1°C
(30°F)		 -0°C
(32°F)		 5°C
(41°F)		 10°C
(49°F)		 15°C
(60°F)		 21°C
(71°F)		 25°C
(78°F)		 25°C
(77°F)		 22°C
(71°F)		 15°C
(58°F)		 6°C
(43°F)		 2°C
(36°F)
Daily mean -4°C
(24°F)		 -4°C
(25°F)		 2°C
(35°F)		 6°C
(43°F)		 12°C
(54°F)		 18°C
(65°F)		 22°C
(72°F)		 22°C
(71°F)		 18°C
(65°F)		 11°C
(53°F)		 3°C
(38°F)		 -0°C
(32°F)
Average low -7°C
(19°F)		 -8°C
(19°F)		 -2°C
(29°F)		 3°C
(37°F)		 8°C
(47°F)		 14°C
(58°F)		 19°C
(66°F)		 18°C
(65°F)		 15°C
(59°F)		 8°C
(47°F)		 0°C
(33°F)		 -3°C
(27°F)
Mean minimum -20°C
(-4°F)		 -20°C
(-4°F)		 -13°C
(9°F)		 -4°C
(26°F)		 2°C
(36°F)		 10°C
(51°F)		 15°C
(59°F)		 14°C
(57°F)		 9°C
(48°F)		 1°C
(34°F)		 -8°C
(18°F)		 -13°C
(9°F)
Minimum -29°C
(-20°F)		 -29°C
(-20°F)		 -22°C
(-8°F)		 -8°C
(18°F)		 -0°C
(32°F)		 7°C
(44°F)		 14°C
(57°F)		 12°C
(54°F)		 5°C
(41°F)		 -1°C
(31°F)		 -13°C
(9°F)		 -20°C
(-4°F)

Compare climate in Brown Deer with other places

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

Monthly average precipitation in Brown Deer, Wisconsin, United States §

Brown Deer usually has the most precipitation in April, May and October, with an average of 12 rainy days and 119 mm (4.7 inches) of precipitation per month.The driest months in Brown Deer are February, November and December. On average, 54 mm (2.1 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Brown Deer, 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) 59 (2.3) 57 (2.2) 68 (2.7) 108 (4.3) 131 (5.2) 101 (4.0) 88 (3.5) 77 (3.0) 100 (3.9) 119 (4.7) 52 (2.1) 52 (2.1)
Average precipitation days (≥ 1 mm) 8 9 9 12 12 11 9 9 10 13 8 7

Monthly sunshine hours in Brown Deer, Wisconsin, United States §

The sunniest months in Brown Deer are June, July and August, when the sun shines an average of 11 hours 14 minutes a day.Least sunny months in Brown Deer: January, November and December receive an average of 5 hours 4 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Brown Deer, 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 120 185 241 252 290 327 365 341 282 210 185 160
Mean daily daylight hours 9h 23m 10h 31m 11h 57m 13h 26m 14h 41m 15h 18m 14h 58m 13h 51m 12h 26m 10h 58m 9h 41m 9h 1m

Solar UV radiation in Brown Deer, Wisconsin, United States §

Brown Deer experiences the highest level of ultraviolet (UV) radiation in June, July 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 Brown Deer UV Index data.

Average daily maximum UV levels by month for Brown Deer, 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 8 9 10 10 9 7 5 3 2