Brookfield weather in December: Brookfield, Wisconsin: normal highs, lows, rain and records for December
Brookfield in December has a normal high of 33°F and a normal low of 19°F, a daily mean of 26°F, falling from 38°F on the 1st to 29°F by the 31st. Measurable precipitation falls on 12 days in a normal December, 1.96 inches in all. (NOAA 1991-2020 normals)
In metric: a normal high of 1°C and low of −7°C, 50 mm of precipitation in December.
- NOAA stationBrookfield Wastewater Treatment Plant
- Station IDUSC00471062
- Location43.05°N 88.18°W
- Elevation830 ft (253 m)
- From the center3 miles
- Population41,268
- Jan 28° 12°
- Feb 32° 15°
- Mar 42° 25°
- Apr 54° 35°
- May 67° 47°
- Jun 77° 56°
- Jul 81° 61°
- Aug 79° 60°
- Sep 72° 51°
- Oct 59° 40°
- Nov 45° 29°
- Dec 33° 19°
Each month: normal high (large) and low, °F. Fill: the month's normal mean, colder blue to hotter red.
How warm is Brookfield in December?
The normal high is 33°F and the normal low 19°F, for a daily mean of 25.9°F. December is 10.9°F cooler than November and 6.0°F warmer than January. December is the 10th warmest month of the year in Brookfield and the 10th wettest. Across the month the normal high falls 9°F, from 38°F on December 1 to 29°F on December 31. From one year to the next December's mean temperature typically moves about 5.1°F either way (NOAA's standard deviation), so roughly two Decembers in three average between 21°F and 31°F.
Bars above: each day's normal high to low. Columns below: the chance of 0.01 inch or more of precipitation that day, on a scale of 0 to 100% (highest 38%).
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in |
|---|---|---|---|---|
| December 1 | 38°F | 23°F | 37% | 16% |
| December 8 | 35°F | 21°F | 38% | 17% |
| December 15 | 33°F | 19°F | 38% | 17% |
| December 22 | 31°F | 17°F | 38% | 17% |
| December 31 | 29°F | 15°F | 36% | 16% |
Every day of December: normal high, low and chance of precipitation (warmest afternoon December 1, coldest night December 31)
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in | Daylight |
|---|---|---|---|---|---|
| December 1 | 38°F | 23°F | 37% | 16% | 9 h 20 min |
| December 2 | 38°F | 23°F | 37% | 16% | 9 h 10 min |
| December 3 | 37°F | 22°F | 37% | 16% | 9 h 10 min |
| December 4 | 37°F | 22°F | 37% | 16% | 9 h 10 min |
| December 5 | 37°F | 22°F | 37% | 17% | 9 h 10 min |
| December 6 | 36°F | 21°F | 37% | 17% | 9 h 10 min |
| December 7 | 36°F | 21°F | 37% | 17% | 9 h 10 min |
| December 8 | 35°F | 21°F | 38% | 17% | 9 h 10 min |
| December 9 | 35°F | 21°F | 38% | 17% | 9 h 10 min |
| December 10 | 35°F | 20°F | 38% | 17% | 9 h 10 min |
| December 11 | 34°F | 20°F | 38% | 17% | 9 h |
| December 12 | 34°F | 20°F | 38% | 17% | 9 h |
| December 13 | 34°F | 19°F | 38% | 17% | 9 h |
| December 14 | 33°F | 19°F | 38% | 17% | 9 h |
| December 15 | 33°F | 19°F | 38% | 17% | 9 h |
| December 16 | 33°F | 19°F | 38% | 17% | 9 h |
| December 17 | 33°F | 18°F | 38% | 17% | 9 h |
| December 18 | 32°F | 18°F | 38% | 17% | 9 h |
| December 19 | 32°F | 18°F | 38% | 17% | 9 h |
| December 20 | 32°F | 18°F | 38% | 17% | 9 h |
| December 21 | 31°F | 17°F | 38% | 17% | 9 h |
| December 22 | 31°F | 17°F | 38% | 17% | 9 h |
| December 23 | 31°F | 17°F | 38% | 17% | 9 h |
| December 24 | 31°F | 17°F | 37% | 17% | 9 h |
| December 25 | 30°F | 16°F | 37% | 17% | 9 h |
| December 26 | 30°F | 16°F | 37% | 17% | 9 h |
| December 27 | 30°F | 16°F | 37% | 17% | 9 h |
| December 28 | 30°F | 16°F | 37% | 17% | 9 h |
| December 29 | 30°F | 15°F | 37% | 17% | 9 h |
| December 30 | 29°F | 15°F | 37% | 17% | 9 h |
| December 31 | 29°F | 15°F | 36% | 16% | 9 h |
- Normal high
- 33°FDecember average
- Normal low
- 19°FDecember average
- Precipitation
- 1.96 inmonth total
- Days with precipitation
- 120.01 inch or more
- Nights at 32°F or colder
- 28
- Daylight
- 9 h 20 min to 9 hDecember 1 to December 31
- Sunshine
- 59%of clear-sky sunlight (NASA)
Source: NOAA NCEI 1991-2020 daily normals, station USC00471062; monthly normals. Daylight is computed from the place's latitude with NOAA's solar equations.
Does it rain in Brookfield in December?
On a given December day the chance of 0.01 inch or more is 37% on average, highest around December 12 (38%). In all, 1.96 in falls on 12 days of a normal December.
In a normal December in Brookfield, 28 nights fall to freezing and 16 days stay below freezing all day.
Source: NOAA NCEI 1991-2020 daily and monthly normals, station USC00471062.
What are the records for December in Brookfield?
The December mean against the 1991-2020 normal of 25.9°F: 2021 31.0°F (+5.1), 2022 24.6°F (−1.3), 2023 35.2°F (+9.3), 2024 27.2°F (+1.3), 2025 21.9°F (−4.0). 3 of 5 ran warmer than normal.
| December | Mean | Against normal | Precip. |
|---|---|---|---|
| 2021 | 31.0°F | +5.1°F | 2.10 in |
| 2022 | 24.6°F | −1.3°F | 1.80 in |
| 2023 | 35.2°F | +9.3°F | 1.60 in |
| 2024 | 27.2°F | +1.3°F | 0.95 in |
| 2025 | 21.9°F | −4.0°F | 1.69 in |
Source: recent months: ACIS, station USC00471062. Records and recent months use complete months only.
How does December in Brookfield compare across Wisconsin?
Across the 165 places PlainClimate covers in Wisconsin, December normal highs run from 24°F in Drummond to 37°F in Kenosha; Brookfield's is 33°F.
Source: NOAA NCEI 1991-2020 monthly normals for every station in the state.
Other months and places
- Brookfield in November45°F by day, 29°F at night
- Brookfield in January28°F by day, 12°F at night
- Brookfield through the yearEvery month, frost dates, records and recent years
- Wisconsin in DecemberThe statewide normal and the warmest and coolest places
- Kenosha: Wisconsin's warmest Decembernormal high 37°F