New Berlin, WI Weather & Climate Normals
What a normal year in New Berlin actually looks like
On the 30-year record NOAA keeps for New Berlin, WI, the comfort score comes out to 48/100, 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 New Berlin's weather actually swings
Average temperatures in New Berlin run from 21°F in Jan up to 72°F in Jul, a 50.7°F seasonal swing, one of the widest gaps in this dataset.
New Berlin, month by month
| Month | Avg high | Avg low | Precip |
|---|---|---|---|
| Jan | 30°F | 12°F | 1.8in |
| Feb | 33°F | 15°F | 1.87in |
| Mar | 44°F | 24°F | 2.07in |
| Apr | 56°F | 35°F | 4.1in |
| May | 68°F | 46°F | 4.28in |
| Jun | 78°F | 56°F | 5.63in |
| Jul | 83°F | 61°F | 3.75in |
| Aug | 81°F | 59°F | 3.79in |
| Sep | 74°F | 51°F | 3.77in |
| Oct | 62°F | 40°F | 3.01in |
| Nov | 47°F | 29°F | 2.28in |
| Dec | 35°F | 18°F | 2.09in |
If you're timing a visit, May, Jun, Jul, Aug, and Sep are New Berlin's mildest stretch; if you're moving there, you should plan around Jan's cold instead.
How wet New Berlin actually gets
New Berlin averages 38.44in of precipitation a year across roughly 121 days with measurable rain or snow; the nearest NOAA station does not record snowfall, so no snow figure is shown rather than guessed.
New Berlin against the rest of the country
Out of 4876 cities scored here, New Berlin comes in at 2325; within WI alone it ranks 13 of 157. Population is about 40,302.
Checking the actual forecast
These figures come from Hales Corners/Whitnall Park/Bo, WI US, the NOAA station 5.6 miles from New Berlin, averaged over 30 years, not tomorrow's forecast.
More on how this is worked out
Why some cities show no snow or rain figure · Why this uses the nearest NOAA station