Caledonia weather in December

In December, Caledonia sees average daytime highs of 35°F and overnight lows near 25°F, with 2.3 in of precipitation across 8.7 wet days and about 8.9 hours of daylight. It is the 10th-warmest and 10th-wettest month of the year here.

Highs ease over the month, from about 38°F in the first days to 32°F by the end. The sky is clear or mostly clear about 20% of the time in December, and the air most often feels dry.

Daylight stretches from about 9 h 06 min at the start of December to 8 h 54 min by month's end. Set against the rest of the year, December is Caledonia's 11th-clearest and 3rd-windiest month. For the whole year in context, see Caledonia's year-round climate.

Daytime high
35°
10th warmest
Overnight low
25°
3rd coldest
Precipitation
2.3 in
8.7 wet days
Daylight
8 h 54 min
7:22 AM – 4:14 PM
Cloud cover
70%
11th clearest
Wind
11 mph
3rd windiest
Solar energy
1.51 kWh/m²
Travel score
0.0
out of 10

Caledonia is village in Racine County, Wisconsin, United States.

Density
196/km²
people per km²

Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.

Temperature in December

Average highAverage lowShaded bands: 10–90% of days

Highs ease over the month, from about 38°F in the first days to 32°F by the end.

A typical December day in Caledonia reaches about 35°F in the afternoon and slips back to 25°F overnight — a 10°F spread between the day's warmth and the night's chill. On most days the high lands between 22°F and 46°F. Set against its neighbours, December runs about 11°F cooler than November and about 5°F warmer than January.

20°40°60°151015202531
Avg high (°F)Avg low (°F)
13929
23829
33828
43828
53727
63727
73727
83626
93626
103526
113525
123525
133525
143525
153424
163424
173424
183424
193424
203324
213323
223323
233323
243323
253323
263222
273222
283222
293222
303221
313121

How December really feels in Caledonia

Once humidity and wind are folded in, December averages 0 days that feel above 90°F and 31 that feel at or below 32°F — the comfort signal a plain temperature reading hides.

Days feeling ≥ 90°F
0
heat index over the day's high
Days feeling ≤ 32°F
31
18 feel bitter (≤ 14°F)

The story in December is cold — wind chill drags the overnight "feels like" below the raw low.

Caledonia weather by month

How December compares with the rest of the year at a glance. December is the 10th-warmest and 10th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°F)Rainfall (inches)Wet daysSnow daysDaylight (hours)Travel score
Jan29° / 18°2.18.76.89.20.0
Feb31° / 20°1.97.15.410.30.0
Mar40° / 28°2.49.23.611.60.3
Apr51° / 38°4.212.51.613.12.2
May62° / 49°3.811.6014.44.9
Jun73° / 61°3.510.9015.16.6
Jul79° / 67°3.19.8014.86.8
Aug78° / 66°3.610.7013.76.8
Sep71° / 58°3.09.3012.36.8
Oct58° / 46°3.29.20.210.84.5
Nov45° / 35°2.58.71.59.61.1
Dec35° / 25°2.38.758.90.0

Cloud cover in December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 20% of the time in December.

Beyond those clear spells, partly cloudy skies cover about 13% of December, with mostly cloudy or overcast conditions the remaining 67%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
13367
23367
33268
43466
53466
63466
73466
83367
93466
103466
113466
123367
133367
143367
153466
163367
173367
183367
193367
203268
213268
223169
233169
243169
253268
263268
273268
283169
293169
303169
313169

Chance of precipitation in December

Any precipitationSnow

Caledonia gets around 2.3 in of rain and snow over 8.7 wet days in December. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable precipitation averages around 28% and peaks near 32% on the wettest days, and about 5 days bring snow.

0%10%20%30%40%151015202531
Rain chance (%)Snow chance (%)
13213
23214
33214
43215
53115
63116
73116
83016
93016
102916
112916
122815
132815
142815
152715
162715
172714
182614
192614
202614
212614
222615
232615
242615
252616
262716
272717
282717
292817
302818
312818

Humidity in December

DryComfortableHumidMuggyOppressiveMiserable

Most of December feels dry — the stacked bands show each day's mix of comfort levels, read off the dew point.

By dew point, December lands in the dry band about 100% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)
1100
2100
3100
4100
5100
6100
7100
8100
9100
10100
11100
12100
13100
14100
15100
16100
17100
18100
19100
20100
21100
22100
23100
24100
25100
26100
27100
28100
29100
30100
31100

Wind in December

Winds average 11 mph in December.

Across December, daily wind ranges from about 11 mph on the calmest days to 11 mph at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (mph)Feels
111light breeze
211light breeze
311light breeze
411light breeze
511light breeze
611light breeze
711light breeze
811light breeze
911light breeze
1011light breeze
1111light breeze
1211light breeze
1311light breeze
1411light breeze
1511light breeze
1611light breeze
1711light breeze
1811light breeze
1911light breeze
2011light breeze
2111light breeze
2211light breeze
2311light breeze
2411light breeze
2511light breeze
2611light breeze
2711light breeze
2811light breeze
2911light breeze
3011light breeze
3111light breeze

Sunrise & sunset in December

DaylightNight

Daylight runs from about 9 h 06 min at the start of December to 8 h 54 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 12 minutes over December. Sunrise moves from 7:09 AM to 7:28 AM, and sunset from 4:14 PM to 4:21 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
19.17:094:14
29.17:104:14
39.07:114:13
49.07:124:13
59.07:134:13
69.07:144:13
79.07:154:13
89.07:164:13
98.97:174:13
108.97:174:13
118.97:184:13
128.97:194:13
138.97:204:13
148.97:214:13
158.97:214:13
168.97:224:14
178.97:234:14
188.97:234:14
198.87:244:15
208.87:244:15
218.87:254:16
228.87:254:16
238.87:264:16
248.87:264:17
258.87:274:18
268.97:274:18
278.97:274:19
288.97:284:19
298.97:284:20
308.97:284:21
318.97:284:21

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 1.51 kWh/m² — the year's lowest.

For context, solar energy here swings from a low near 1.51 kWh/m² to a high of 6.42 kWh/m² in June across the year — December's 1.51 kWh/m² sits near the bottom.

00.511.522.5151015202531
Solar energy (kWh/m²)Level
11.6Dim
21.6Dim
31.6Dim
41.6Dim
51.6Dim
61.6Dim
71.6Dim
81.5Dim
91.5Dim
101.5Dim
111.5Dim
121.5Dim
131.5Dim
141.5Dim
151.5Dim
161.5Dim
171.5Dim
181.5Dim
191.5Dim
201.5Dim
211.5Dim
221.5Dim
231.5Dim
241.5Dim
251.5Dim
261.5Dim
271.5Dim
281.5Dim
291.5Dim
301.5Dim
311.5Dim
Planning a trip in December

Is December a good time to visit Caledonia?

Our two travel scores rate December for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).

0.0
Sightseeing
10th-best month of the year
0.0
Beach & pool
8th-best month of the year

December is a weaker month for outdoor sightseeing in Caledonia.

What to pack for Caledonia in December

From December's temperature range, rain chance, sun and wind — what's worth putting in the bag.

In December, Caledonia sees daytime highs around 35°F and nights near 25°F. Pack a warm layer and a heavy coat. Worth having: rain gear. About 9 days see rain.

a warm layera heavy coatrain gear

Sea temperature near Caledonia in December

The nearest coast averages about 41°F in December — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea offshore is warmest in August at about 70°F and coldest in March near 36°F.

It's comfortable for a long swim from Jul 24 to Sep 2 — about 1.3 months when the water holds above 68°F.

30°40°50°60°70°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarm
Sea temperature (°F)Comfort
Jan38Bracing
Feb36Bracing
Mar36Bracing
Apr38Bracing
May43Bracing
Jun55Bracing
Jul67Cool
Aug70Refreshing
Sep66Cool
Oct56Bracing
Nov47Bracing
Dec41Bracing

UV index in Caledonia in December

LowModerateHighVery highExtreme

Clear-sky midday UV in December peaks around 1. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Caledonia peaks around June 22 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.

025710JanFebMarAprMayJunJulAugSepOctNovDecLowModerateHighVery highHighModerateLowJun 22UV 9Jan 1UV 1
UV index (midday)Level
Jan1Low
Feb2Moderate
Mar4Moderate
Apr6High
May8Very high
Jun9Very high
Jul9Very high
Aug8Very high
Sep6High
Oct3Moderate
Nov2Moderate
Dec1Low

Air quality in Caledonia in December

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where December falls, not just the annual average.

Air quality in Caledonia is worst in July — around 17 µg/m³ PM2.5 (moderate), about 1.8× the cleanest month (October, 9 µg/m³).

Modeled monthly averages (CAMS reanalysis, 2015–2024).

01020JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodJul 1017 µg/m³Oct 249 µg/m³
PM2.5 (µg/m³)Level
Jan11Good
Feb13Moderate
Mar15Moderate
Apr15Moderate
May16Moderate
Jun17Moderate
Jul17Moderate
Aug16Moderate
Sep13Moderate
Oct9Good
Nov9Good
Dec10Good
Location & terrain

Where is Caledonia?

Caledonia sits at 42.8°N, 87.9°W, 722 ft above sea level, in United States. The nearest listed city is Oak Creek, 6.2 mi away.

Topography around Caledonia

How much the land rises and falls, and what covers it, within 2, 10 and 50 miles of Caledonia.

Within 2 miles, the terrain around Caledonia has only modest variations in elevation — a maximum elevation change of 171 ft around an average of 735 ft above sea level; within 10 miles, only modest variations in elevation — a maximum elevation change of 505 ft; within 50 miles, significant variations in elevation — a maximum elevation change of 840 ft.

The land around Caledonia is covered by cropland (49%), grassland (23%) and trees (20%) within 2 miles, cropland (26%), trees (22%) and grassland (22%) within 10 miles, and water (45%) within 50 miles.

2 miles
171 ft
10 miles
505 ft
50 miles
840 ft
treesgrasslandcroplandartificial surfacesbare terrainwater
December weather nearby: Oak Creek 6.2 mi · South Milwaukee 8.1 mi · Franklin 8.1 mi · Mount Pleasant 8.1 mi · Racine 9.3 mi · Cudahy 11 mi · Greenfield 12 mi · Muskego 13 mi

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
Protestant 47%unaffiliated 23%Roman Catholic 21%Jewish 2%

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 Caledonia (42.8078°, -87.9243°, elevation 722 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. Sea temperatures are the NOAA OISST v2.1 1991–2020 monthly climatology (public domain), sampled at the nearest ocean point. UV index is derived from CAMS (Copernicus Atmosphere Monitoring Service) clear-sky UV data — contains modified Copernicus Atmosphere Monitoring Service information. Monthly air-quality (PM2.5) seasonality is from the CAMS EAC4 reanalysis (Copernicus Atmosphere Monitoring Service), scaled to the WHO annual mean where available. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).