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Weather in Washtenaw County, Michigan for December 2025

Your guide to Washtenaw County weather in December - trends and predictions

    Snow Forecast ❄️

  • With an average of 3 snowy days, Washtenaw County usually enjoys a light touch of snow in December.
    According to Washtenaw County snow forecast for December 2025, no snow is expected at the beginning of the month.

    • Temperatures

  • In general, the average temperature in Washtenaw County at the beginning of December is 1.6 °F. As the month progressed, temperatures tended to noticeably warm up, reaching an average of 4.1 °F by the end of December.

    • Rain 🌧️

  • The climate of Washtenaw County in December is notably wet, with an average of 13 rainy days, and a total of 172.4 mm of precipitation.

    • More

  • New! Chat with our AI weatherman - it’s amazing and free.

Average dry days
15
Dry days
Average rainy days
13
Rainy days
Average snowy days
3
Snow days
Average temperatures
2°/-3°
Temperatures
Average wind speed
23 km/h
Avg max wind
Average humidity
85 %
Avg humidity

Washtenaw County Weather December

Move between months or click on a day
November
January
Sun.Mon.Tue.Wed.Thu.Fri.Sat.
1
Patchy rain possible
9°
2
Partly cloudy
2°
3
Overcast
0°
4
Overcast
0°
5
Overcast
0°
6
Overcast
-2°
7
Cloudy
2°
8
Overcast
5°
9
Moderate or heavy rain shower
6°
10
Overcast
4°
11
Light freezing rain
0°
12
Light freezing rain
-3°
13
Sunny
-5°
14
Partly cloudy
1°
15
Moderate or heavy snow showers
4°
16
Moderate or heavy rain shower
7°
17
Overcast
4°
18
Light freezing rain
1°
19
Light freezing rain
0°
20
Light freezing rain
1°
21
Light freezing rain
-3°
22
Partly cloudy
-3°
23
Light freezing rain
0°
24
Light freezing rain
1°
25
Overcast
1°
26
Overcast
2°
27
Moderate rain at times
4°
28
Overcast
10°
29
Moderate or heavy rain shower
6°
30
Light freezing rain
5°
31
Moderate or heavy rain shower
1°

Temperatures trend during December in Washtenaw County

See the weather trend as well as the moving average line

December weather in Washtenaw County day by day

Click on a date for more information
November January
Date Weather Temperatures Rain Snow More
Dec. 1 Patchy rain possible
Patchy rain possible
 9° /0° 2.2 mm 0 cm
Dec. 2 Partly cloudy
Partly cloudy
 2° /-4° 0 mm 0 cm
Dec. 3 Overcast
Overcast
 0° /-4° 0 mm 0 cm
Dec. 4 Overcast
Overcast
 0° /-4° 1.5 mm 0.6 cm
Dec. 5 Overcast
Overcast
 0° /-6° 0.8 mm 0 cm
Dec. 6 Overcast
Overcast
 -2° /-6° 0 mm 0 cm
Dec. 7 Cloudy
Cloudy
 2° /-3° 0 mm 0 cm
Dec. 8 Overcast
Overcast
 5° /1° 0 mm 0 cm
Dec. 9 Moderate or heavy rain shower
Moderate or heavy rain shower
 6° /1° 15.1 mm 0 cm
Dec. 10 Overcast
Overcast
 4° /0° 0 mm 0 cm
Dec. 11 Light freezing rain
Light freezing rain
 0° /-2° 0.6 mm 0 cm
Dec. 12 Light freezing rain
Light freezing rain
 -3° /-9° 0.6 mm 0 cm
Dec. 13 Sunny
Sunny
 -5° /-10° 0 mm 0 cm
Dec. 14 Partly cloudy
Partly cloudy
 1° /-8° 0 mm 0 cm
Dec. 15 Moderate or heavy snow showers
Moderate or heavy snow showers
 4° /0° 25.7 mm 10.6 cm
Dec. 16 Moderate or heavy rain shower
Moderate or heavy rain shower
 7° /1° 11.1 mm 0 cm
Dec. 17 Overcast
Overcast
 4° /0° 0 mm 0 cm
Dec. 18 Light freezing rain
Light freezing rain
 1° /-1° 0.4 mm 0 cm
Dec. 19 Light freezing rain
Light freezing rain
 0° /-2° 0.4 mm 0 cm
Dec. 20 Light freezing rain
Light freezing rain
 1° /-2° 3.5 mm 0 cm
Dec. 21 Light freezing rain
Light freezing rain
 -3° /-7° 0.1 mm 0 cm
Dec. 22 Partly cloudy
Partly cloudy
 -3° /-11° 0 mm 0 cm
Dec. 23 Light freezing rain
Light freezing rain
 0° /-3° 2.8 mm 0 cm
Dec. 24 Light freezing rain
Light freezing rain
 1° /-1° 0.1 mm 0 cm
Dec. 25 Overcast
Overcast
 1° /-1° 0 mm 0 cm
Dec. 26 Overcast
Overcast
 2° /0° 0 mm 0 cm
Dec. 27 Moderate rain at times
Moderate rain at times
 4° /1° 2.3 mm 0 cm
Dec. 28 Overcast
Overcast
 10° /5° 0.9 mm 0 cm
Dec. 29 Moderate or heavy rain shower
Moderate or heavy rain shower
 6° /3° 72.4 mm 0 cm
Dec. 30 Light freezing rain
Light freezing rain
 5° /0° 9.3 mm 0 cm
Dec. 31 Moderate or heavy rain shower
Moderate or heavy rain shower
 1° /0° 24.7 mm 4.3 cm
Next
Important Notice
Our weather forecast for Washtenaw County in December is based on the analysis of historical data rather than real-time forecast models. While this provides a general overview, weather conditions can change. We recommend that you check the Washtenaw County forecast closer to your planned date for the most up-to-date weather information.
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Washtenaw County in December - FAQ

What are the expected maximum and minimum temperatures in Washtenaw County during December?
Brace for cold days with temperatures not exceeding 2° and nights that are likely to be freezing. Winter clothing is essential for comfort and safety.
How much rainfall should be expected in Washtenaw County during December?
Significant rainfall exceeding 172.4 mm is expected in Washtenaw County during December, occurring over more than 13 days. Preparing for wet conditions is recommended in your planning.
Will it snow in Washtenaw County in December 2025?
Washtenaw County experiences an average snowfall of 15.5 cm during December, occurring over 3 days.
What are the typical wind conditions in Washtenaw County during December?
The average wind speed in Washtenaw County during December is 23 km/h, suggesting breezy to windy conditions, depending on your activities.

Washtenaw County snow forecast December 2025

Track daily snowfall levels and discover Washtenaw County’s snowy potential this December ❄️
On average, Washtenaw County sees 3 snowy days during December, with approximately 15.5 cm of total snowfall.

December rainfall patterns in Washtenaw County

Explore the daily rainfall trends and prepare for Washtenaw Countys December weather 💧
Typically, Washtenaw County has 13 rainy days in December with a total of 172.4 mm of rainfall.
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Ann Arbor
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Location coordinates Where is Washtenaw County?

Get accurate weather forecasts for Washtenaw County, located at latitude 42.278 and longitude -83.741. Stay updated with localized weather information tailored for Washtenaw County.

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