Brown Deer, WI Weather & Climate Normals
What a normal year in Brown Deer actually looks like
On the 30-year record NOAA keeps for Brown Deer, WI, the comfort score comes out to 43/100, strongly seasonal: Comfortable weather is limited to a shorter window; summers, winters, or precipitation swing wide. Only 5 months a year land in the 55–75°F range this site treats as mild.
How much Brown Deer's weather actually swings
Average temperatures in Brown Deer run from 22°F in Jan up to 73°F in Jul, a 51.2°F seasonal swing, one of the widest gaps in this dataset.
Brown Deer, month by month
| Month | Avg high | Avg low | Precip | Snow |
|---|---|---|---|---|
| Jan | 30°F | 14°F | 1.48in | 11in |
| Feb | 34°F | 17°F | 1.49in | 9.9in |
| Mar | 44°F | 26°F | 1.79in | 5.3in |
| Apr | 56°F | 36°F | 3.71in | 1.5in |
| May | 68°F | 48°F | 3.73in | 0in |
| Jun | 78°F | 58°F | 4.84in | 0in |
| Jul | 83°F | 63°F | 3.57in | 0in |
| Aug | 81°F | 62°F | 3.68in | 0in |
| Sep | 74°F | 53°F | 3.02in | 0in |
| Oct | 61°F | 42°F | 2.73in | 0in |
| Nov | 47°F | 30°F | 2.05in | 2in |
| Dec | 35°F | 21°F | 1.73in | 9.8in |
If you're timing a visit, May, Jun, Jul, Aug, and Sep are Brown Deer's mildest stretch; if you're moving there, you should plan around Jan's cold instead.
How wet Brown Deer actually gets
Over a typical year, Brown Deer sees about 33.82in of precipitation a year across roughly 120 days with measurable rain or snow, with 39.5in of snow a year.
Brown Deer against the rest of the country
Out of 4876 cities scored here, Brown Deer comes in at 4050; within WI alone it ranks 82 of 157. Population is about 12,527.
Checking the actual forecast
These figures come from Mt Mary College, WI US, the NOAA station 7.6 miles from Brown Deer, averaged over 30 years, not tomorrow's forecast.
More on how this is worked out
Why some cities show no snow or rain figure · What a 30-year climate normal actually is