Brookfield weather in January: Brookfield, Wisconsin: normal highs, lows, rain and records for January
Brookfield in January has a normal high of 28°F and a normal low of 12°F, a daily mean of 20°F, holding near 28°F all month. Measurable precipitation falls on 11 days in a normal January, 1.59 inches in all. (NOAA 1991-2020 normals)
In metric: a normal high of −2°C and low of −11°C, 40 mm of precipitation in January.
- 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 January?
The normal high is 28°F and the normal low 12°F, for a daily mean of 19.9°F. January is 6.0°F cooler than December and 3.4°F cooler than February. January is the 12th warmest month of the year in Brookfield and the 11th wettest. Across the month the normal high falls 1°F, from 29°F on January 1 to 28°F on January 31. From one year to the next January's mean temperature typically moves about 4.9°F either way (NOAA's standard deviation), so roughly two Januarys in three average between 15°F and 25°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 |
|---|---|---|---|---|
| January 1 | 29°F | 15°F | 36% | 16% |
| January 8 | 28°F | 13°F | 36% | 16% |
| January 15 | 27°F | 12°F | 36% | 16% |
| January 22 | 27°F | 11°F | 37% | 16% |
| January 31 | 28°F | 12°F | 38% | 16% |
Every day of January: normal high, low and chance of precipitation (warmest afternoon January 1, coldest night January 23)
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in | Daylight |
|---|---|---|---|---|---|
| January 1 | 29°F | 15°F | 36% | 16% | 9 h |
| January 2 | 29°F | 14°F | 36% | 16% | 9 h |
| January 3 | 29°F | 14°F | 36% | 16% | 9 h |
| January 4 | 29°F | 14°F | 36% | 16% | 9 h 10 min |
| January 5 | 28°F | 14°F | 36% | 16% | 9 h 10 min |
| January 6 | 28°F | 13°F | 36% | 16% | 9 h 10 min |
| January 7 | 28°F | 13°F | 36% | 16% | 9 h 10 min |
| January 8 | 28°F | 13°F | 36% | 16% | 9 h 10 min |
| January 9 | 28°F | 13°F | 36% | 16% | 9 h 10 min |
| January 10 | 28°F | 13°F | 36% | 16% | 9 h 10 min |
| January 11 | 28°F | 12°F | 36% | 16% | 9 h 10 min |
| January 12 | 28°F | 12°F | 36% | 16% | 9 h 20 min |
| January 13 | 28°F | 12°F | 36% | 16% | 9 h 20 min |
| January 14 | 27°F | 12°F | 36% | 16% | 9 h 20 min |
| January 15 | 27°F | 12°F | 36% | 16% | 9 h 20 min |
| January 16 | 27°F | 12°F | 36% | 16% | 9 h 20 min |
| January 17 | 27°F | 12°F | 36% | 16% | 9 h 20 min |
| January 18 | 27°F | 12°F | 36% | 16% | 9 h 20 min |
| January 19 | 27°F | 11°F | 36% | 16% | 9 h 30 min |
| January 20 | 27°F | 11°F | 36% | 16% | 9 h 30 min |
| January 21 | 27°F | 11°F | 37% | 16% | 9 h 30 min |
| January 22 | 27°F | 11°F | 37% | 16% | 9 h 30 min |
| January 23 | 27°F | 11°F | 37% | 16% | 9 h 30 min |
| January 24 | 27°F | 11°F | 37% | 16% | 9 h 40 min |
| January 25 | 27°F | 11°F | 37% | 16% | 9 h 40 min |
| January 26 | 27°F | 11°F | 37% | 16% | 9 h 40 min |
| January 27 | 28°F | 11°F | 37% | 16% | 9 h 40 min |
| January 28 | 28°F | 11°F | 37% | 16% | 9 h 50 min |
| January 29 | 28°F | 11°F | 37% | 16% | 9 h 50 min |
| January 30 | 28°F | 12°F | 38% | 16% | 9 h 50 min |
| January 31 | 28°F | 12°F | 38% | 16% | 9 h 50 min |
- Normal high
- 28°FJanuary average
- Normal low
- 12°FJanuary average
- Precipitation
- 1.59 inmonth total
- Days with precipitation
- 110.01 inch or more
- Nights at 32°F or colder
- 30
- Daylight
- 9 h to 9 h 50 minJanuary 1 to January 31
- Sunshine
- 63%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 January?
On a given January day the chance of 0.01 inch or more is 36% on average, highest around January 30 (38%). In all, 1.59 in falls on 11 days of a normal January.
In a normal January in Brookfield, 30 nights fall to freezing and 21 days stay below freezing all day.
Source: NOAA NCEI 1991-2020 daily and monthly normals, station USC00471062.
What are the records for January in Brookfield?
The January mean against the 1991-2020 normal of 19.9°F: 2021 23.2°F (+3.3), 2023 28.7°F (+8.8), 2024 22.8°F (+2.9), 2025 17.7°F (−2.2), 2026 15.9°F (−3.9). 3 of 5 ran warmer than normal.
| January | Mean | Against normal | Precip. |
|---|---|---|---|
| 2021 | 23.2°F | +3.3°F | 1.62 in |
| 2023 | 28.7°F | +8.8°F | 1.42 in |
| 2024 | 22.8°F | +2.9°F | 2.54 in |
| 2025 | 17.7°F | −2.2°F | 0.14 in |
| 2026 | 15.9°F | −3.9°F | 1.75 in |
Source: recent months: ACIS, station USC00471062. Records and recent months use complete months only.
How does January in Brookfield compare across Wisconsin?
Across the 165 places PlainClimate covers in Wisconsin, January normal highs run from 19°F in Cumberland to 31°F in Kenosha; Brookfield's is 28°F.
Source: NOAA NCEI 1991-2020 monthly normals for every station in the state.
Other months and places
- Brookfield in December33°F by day, 19°F at night
- Brookfield in February32°F by day, 15°F at night
- Brookfield through the yearEvery month, frost dates, records and recent years
- Wisconsin in JanuaryThe statewide normal and the warmest and coolest places
- Kenosha: Wisconsin's warmest Januarynormal high 31°F