Beloit, United States — Weather in December 2026

Monthly climate averages for Beloit, United States. Based on 10-year ERA5 reanalysis data.

Dfa Hot-Summer Continental
1.6 /10
Poor

December is a poor month in Beloit

Climate Overview

Beloit, United States in December has cold conditions, with highs averaging around 2.3°C (36°F).

This month falls at the beginning of Winter. Cold conditions dominate the month.

Temperatures remain fairly steady throughout December, with daily highs around 3°C (37°F).

December sees fairly even rainfall, totalling about 52 mm across the month.

Expect around 5.2h of sunshine at the start of December, decreasing to 3.9h by the end.

The warmest days tend to fall around the 1th, averaging 3.8°C (39°F).

Compared to November, this month is about 6°C cooler with 1 more rainy days. Temperatures begin dropping heading into January.

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Monthly December Averages

Temperature
2°C / -5°C
Feels Like
-2°C / -9°C
Rain
8 days · 52 mm
Sunshine
5.1h / day
Humidity
73% — Humid
Wind
20 km/h
Wind Direction
WSW (254°)
Gusts
39 km/h
Daylight
9.1 h
Cloud Cover
70%
Clear Sky Days
1.9
UV Index
1.9 — Low
Dew Point
-5°C — Dry
Moon Phase
Waxing Crescent · 31%
Snow Days
8 days · 13.4 cm
Frost Days
25 days

Climate Charts

Daily averages based on historical data (2016–2025)

Daily Temperature

8°C 5°C 2°C -1°C -4°C -7°C -10°C 151015202531
HighLow

Daily Precipitation

0 mm 2 mm 4 mm 6 mm 151015202531
Rainfall

Daily Sunshine

0h 2h 4h 6h 8h 10h 151015202531
Sunshine

Daily Wind Speed

0 6 12 18 24 30 151015202531
Wind Speed
Sun Position
Sunrise 07:20
Daylight 9.1h
Sunset 16:25

What to Expect

Cold daytime highs of 2°C (36°F) mean shorter outdoor excursions with warming breaks.

Rain usually comes in shorter passing showers rather than all-day rain.

2 of the last 5 yearly records were warmer than this month's long-run average.

Compare Months

January
Poor
Temp
-1°C / -8°C
Feels Like
-6°C / -13°C
Rain
8days (53 mm) Wet
Sun
5.1h Fair
Humidity
75% Muggy
UV
2.3 Moderate
Snow Days
10days
View Details
February
Poor
Temp
2°C / -7°C
Feels Like
-2°C / -12°C
Rain
7days (41 mm) Good
Sun
6.9h Fair
Humidity
70% Muggy
UV
3.4 Moderate
Snow Days
9days
View Details
March
Poor
Temp
9°C / -1°C
Feels Like
5°C / -5°C
Rain
9days (84 mm) Wet
Sun
7.7h Good
Humidity
67% Muggy
UV
4.5 Moderate
Snow Days
5days
View Details
April
Fair
Temp
14°C / 4°C
Feels Like
12°C / 0°C
Rain
13days (100 mm) Wet
Sun
8.6h Good
Humidity
66% Muggy
UV
5.4 High
Snow Days
3days
View Details
May
Good
Temp
21°C / 11°C
Feels Like
20°C / 8°C
Rain
13days (114 mm) Wet
Sun
9.9h Good
Humidity
69% Muggy
UV
6.5 High
View Details
June best
Excellent
Temp
27°C / 17°C
Feels Like
28°C / 17°C
Rain
11days (92 mm) Wet
Sun
11.6h Excellent
Humidity
67% Muggy
UV
7.1 Very High
View Details
July best
Excellent
Temp
28°C / 19°C
Feels Like
31°C / 20°C
Rain
10days (85 mm) Wet
Sun
12h Excellent
Humidity
71% Muggy
UV
7 High
View Details
August best
Excellent
Temp
27°C / 18°C
Feels Like
29°C / 19°C
Rain
9days (85 mm) Wet
Sun
11h Excellent
Humidity
71% Muggy
UV
6.4 High
View Details
September best
Excellent
Temp
24°C / 15°C
Feels Like
25°C / 15°C
Rain
9days (95 mm) Wet
Sun
9.4h Good
Humidity
70% Muggy
UV
5.2 High
View Details
October best
Good
Temp
17°C / 9°C
Feels Like
15°C / 6°C
Rain
10days (83 mm) Wet
Sun
7.1h Good
Humidity
69% Muggy
UV
3.8 Moderate
Snow Days
1days
View Details
November
Poor
Temp
8°C / 1°C
Feels Like
5°C / -3°C
Rain
7days (50 mm) Good
Sun
6.1h Fair
Humidity
70% Muggy
UV
2.4 Moderate
Snow Days
3days
View Details
December
Poor
Temp
2°C / -5°C
Feels Like
-2°C / -9°C
Rain
8days (52 mm) Wet
Sun
5.1h Fair
Humidity
73% Muggy
UV
1.9 Low
Snow Days
8days
View Details
Month Temp Feels Like Rain Sun Humidity UV Status
January -1°C / -8°C -6°C / -13°C 8days (53 mm) Wet 5.1h Fair 75% Muggy 2.3 Moderate Poor View Details
February 2°C / -7°C -2°C / -12°C 7days (41 mm) Good 6.9h Fair 70% Muggy 3.4 Moderate Poor View Details
March 9°C / -1°C 5°C / -5°C 9days (84 mm) Wet 7.7h Good 67% Muggy 4.5 Moderate Poor View Details
April 14°C / 4°C 12°C / 0°C 13days (100 mm) Wet 8.6h Good 66% Muggy 5.4 High Fair View Details
May 21°C / 11°C 20°C / 8°C 13days (114 mm) Wet 9.9h Good 69% Muggy 6.5 High Good View Details
June best 27°C / 17°C 28°C / 17°C 11days (92 mm) Wet 11.6h Excellent 67% Muggy 7.1 Very High Excellent View Details
July best 28°C / 19°C 31°C / 20°C 10days (85 mm) Wet 12h Excellent 71% Muggy 7 High Excellent View Details
August best 27°C / 18°C 29°C / 19°C 9days (85 mm) Wet 11h Excellent 71% Muggy 6.4 High Excellent View Details
September best 24°C / 15°C 25°C / 15°C 9days (95 mm) Wet 9.4h Good 70% Muggy 5.2 High Excellent View Details
October best 17°C / 9°C 15°C / 6°C 10days (83 mm) Wet 7.1h Good 69% Muggy 3.8 Moderate Good View Details
November 8°C / 1°C 5°C / -3°C 7days (50 mm) Good 6.1h Fair 70% Muggy 2.4 Moderate Poor View Details
December 2°C / -5°C -2°C / -9°C 8days (52 mm) Wet 5.1h Fair 73% Muggy 1.9 Low Poor View Details

What to Wear

Full winter gear is a must — insulated coat, thermal base layers, warm hat, gloves, and waterproof boots.

A waterproof jacket or compact umbrella is recommended for occasional showers.

Packing List

Warm coatThermal base layersScarf & glovesUmbrellaComfortable walking shoes

Frequently Asked Questions

December is typically poor for visiting Beloit, with average highs of 2°C (36°F) and around 8 rainy days. Beloit, United States in December has cold conditions, with highs averaging around 2.3°C (36°F).
Beloit typically sees around 8 rainy days in December with 52 mm (2 in) of total rainfall. An umbrella should suffice.
Yes, nights in Beloit during December are cold, averaging -5°C (24°F). Pack warm layers and a coat for evenings.
With highs of 2°C (36°F) and lows of -5°C (24°F) in December, we recommend: Warm coat, Thermal base layers, Scarf & gloves, Umbrella, Comfortable walking shoes. Comfortable walking shoes are essential.
December is not the most favourable month weather-wise in Beloit. Consider visiting during months with milder temperatures or less rainfall for a better experience.
The average UV index in Beloit during December is 2 (low). No special sun protection is needed.
Beloit gets approximately 9 hours of daylight per day in December, with around 5 hours of sunshine.
Yes, Beloit typically sees around 8 snow days in December with roughly 13 cm (5 in) of snowfall.

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