Germantown in Winter
In winter (December, January and February), Germantown sees average daytime highs around 31°F and overnight lows near 20°F, with 5.9 in of precipitation over about 24 wet days across the season. It is the coldest season of the year and the driest season of the year.
Over the season highs ease from about 37°F in early December to 33°F by late February. The sky is clear or mostly clear about 22% of the time across winter, and the air most often feels dry.
Winter is Germantown's weakest season of the year to visit on our travel score. For the whole year in context, see Germantown's year-round climate.
- Avg daytime high
- 31°F
- coldest season of the year
- Avg overnight low
- 20°F
- Precipitation
- 5.9 in
- 24 wet days
- Avg wind
- 11 mph
- Travel score
- 0.0
- weakest season of the year
- Months
- Dec · Jan · Feb
Temperature in Germantown in Winter
Over the season highs ease from about 37°F in early December to 33°F by late February.
A typical winter day in Germantown reaches about 31°F and drops to 20°F overnight. The warmest of the three months is December, the coolest January.
How winter really feels in Germantown
Once humidity and wind are folded in, winter brings about 0 days that feel above 90°F and 90 that feel at or below 32°F.
The story in winter is cold — wind chill drags the overnight "feels like" below the raw low.
Germantown weather by month
How the three winter months (December, January and February) compare with the rest of the year — the season's months are highlighted.
| Month | High / Low (°F) | Rainfall (inches) | Wet days | Snow days | Daylight (hours) | Travel score |
|---|---|---|---|---|---|---|
| Jan | 29° / 17° | 2.0 | 8.9 | 6.8 | 9.2 | 0.0 |
| Feb | 31° / 19° | 1.8 | 6.8 | 5.6 | 10.2 | 0.0 |
| Mar | 40° / 27° | 2.4 | 9.2 | 4 | 11.6 | 0.2 |
| Apr | 50° / 37° | 4.0 | 11.6 | 1.8 | 13.2 | 2.1 |
| May | 60° / 47° | 3.6 | 11.1 | 0 | 14.5 | 4.7 |
| Jun | 71° / 59° | 3.5 | 10.7 | 0 | 15.1 | 6.5 |
| Jul | 78° / 65° | 3.1 | 9.7 | 0 | 14.9 | 6.9 |
| Aug | 77° / 65° | 3.5 | 10.2 | 0 | 13.8 | 6.9 |
| Sep | 70° / 57° | 3.0 | 8.9 | 0 | 12.3 | 6.7 |
| Oct | 58° / 46° | 3.1 | 9.6 | 0.2 | 10.8 | 4.3 |
| Nov | 44° / 34° | 2.4 | 8.8 | 1.8 | 9.5 | 1.0 |
| Dec | 34° / 24° | 2.2 | 8.1 | 5.3 | 8.9 | 0.0 |
Cloud cover in Winter
The sky is clear or mostly clear about 22% of the time across winter.
Chance of precipitation in Winter
Germantown gets around 5.9 in of rain and snow over 24 wet days across winter. The line is the day-by-day chance of measurable precipitation.
Humidity in Winter
Most of winter feels dry — the stacked bands show each day's mix of comfort levels, read off the dew point.
Wind in Winter
Winds average 11 mph across winter.
Sunrise & sunset in Winter
Daylight runs from about 9 hours in early December to 10 h 48 min by late February. The lit band spans sunrise to sunset each day.
Solar energy in Winter
Average shortwave solar energy reaching the ground each day across winter, about 2.0 kWh/m².
Is winter a good time to visit Germantown?
Our two travel scores rate winter for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal), averaged across the three months.
winter is a weaker month for outdoor sightseeing in Germantown.
What to pack for Germantown in Winter
From winter's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In winter, Germantown sees daytime highs around 31°F and nights near 20°F. Pack a warm layer and a heavy coat. Worth having: rain gear. About 24 days see rain.
Sea temperature near Germantown in Winter
The nearest coast averages about 38°F across winter — the other half of the beach question. The full-year curve and swim-comfort zones are below.
The sea at the nearest coast (about 14 mi away) is warmest in August at about 70°F and coldest in March near 36°F.
It's comfortable for a long swim from Jul 29 to Aug 30 — about 1.1 months when the water holds above 68°F.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sea temperature (°F) | 38 | 36 | 36 | 38 | 42 | 54 | 67 | 70 | 66 | 56 | 46 | 41 |
| Comfort | Bracing | Bracing | Bracing | Bracing | Bracing | Bracing | Cool | Refreshing | Cool | Bracing | Bracing | Bracing |
| Sea temperature (°F) | Comfort | |
|---|---|---|
| Jan | 38 | Bracing |
| Feb | 36 | Bracing |
| Mar | 36 | Bracing |
| Apr | 38 | Bracing |
| May | 42 | Bracing |
| Jun | 54 | Bracing |
| Jul | 67 | Cool |
| Aug | 70 | Refreshing |
| Sep | 66 | Cool |
| Oct | 56 | Bracing |
| Nov | 46 | Bracing |
| Dec | 41 | Bracing |
UV index in Germantown in Winter
Clear-sky midday UV across winter averages around 2. The full-year curve, shaded by WHO exposure level, is below.
Under clear skies, the midday UV index in Germantown peaks around June 20 at about 9 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near January 1 at about 1 (low).
The index reaches 3 or more — the level where the WHO recommends sun protection — in 8 months of the year.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UV index (midday) | 1 | 2 | 4 | 6 | 8 | 9 | 8 | 7 | 5 | 3 | 2 | 1 |
| Level | Low | Moderate | Moderate | High | Very high | Very high | Very high | Very high | High | Moderate | Low | Low |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 1 | Low |
| Feb | 2 | Moderate |
| Mar | 4 | Moderate |
| Apr | 6 | High |
| May | 8 | Very high |
| Jun | 9 | Very high |
| Jul | 8 | Very high |
| Aug | 7 | Very high |
| Sep | 5 | High |
| Oct | 3 | Moderate |
| Nov | 2 | Low |
| Dec | 1 | Low |
Air quality in Germantown in Winter
Average fine-particle pollution (PM2.5) through the year — so you can see where winter falls, not just the annual average.
Air quality in Germantown is worst in June — around 16 µg/m³ PM2.5 (moderate), about 1.9× the cleanest month (November, 8 µg/m³).
Modeled monthly averages (CAMS reanalysis, 2015–2024).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| PM2.5 (µg/m³) | 10 | 12 | 14 | 13 | 15 | 16 | 15 | 14 | 11 | 8 | 8 | 9 |
| Level | Good | Good | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Good | Good | Good | Good |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 10 | Good |
| Feb | 12 | Good |
| Mar | 14 | Moderate |
| Apr | 13 | Moderate |
| May | 15 | Moderate |
| Jun | 16 | Moderate |
| Jul | 15 | Moderate |
| Aug | 14 | Moderate |
| Sep | 11 | Good |
| Oct | 8 | Good |
| Nov | 8 | Good |
| Dec | 9 | Good |
Where is Germantown?
Germantown sits at 43.2°N, 88.1°W, 866 ft above sea level, in United States. The nearest listed city is Menomonee Falls, 3.7 mi away.
Topography around Germantown
How much the land rises and falls, and what covers it, within 2, 10 and 50 miles of Germantown.
Within 2 miles, the terrain around Germantown has only modest variations in elevation — a maximum elevation change of 125 ft around an average of 879 ft above sea level; within 10 miles, only modest variations in elevation — a maximum elevation change of 587 ft; within 50 miles, significant variations in elevation — a maximum elevation change of 846 ft.
The land around Germantown is covered by trees (40%) and grassland (29%) within 2 miles, trees (42%) and grassland (28%) within 10 miles, and water (33%), cropland (31%) and trees (20%) within 50 miles.
United States travel facts
- Power plugs
- Type A / B
- 120 V · 60 Hz
- Prices
- ≈ 100% of US
- price level, 2025
- GDP per capita
- $90,027
- 2025
- Happiness
- 6.8 / 10
- World Happiness, 2025
- Safe drinking water
- 98%
- of population, 2024
- Homicide rate
- 5.8
- per 100k, 2023
- Road deaths
- 12.7
- per 100k/yr, 2019
- Income group
- High
- World Bank
- Religion
Sources: World Bank, US State Department, World Happiness Report, WHO/UNICEF, EF EPI, CIA World Factbook.
Data sources
Temperature, precipitation, cloud, humidity, wind and solar figures are a 1991–2020 climatology for Germantown (43.2286°, -88.1104°, elevation 866 ft), computed from hourly ERA5 reanalysis — contains modified Copernicus Climate Change Service information. Sun figures are astronomical calculations, not observations. City data © GeoNames, CC BY 4.0. Map outlines from Natural Earth (public domain); interactive map © Google.