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Grant County (Moses Lake)
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United States weather

Weather in Grant County, Washington for December 2025

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

    Snow Forecast ❄️

  • With an average of 4 snowy days, Grant County usually enjoys a light touch of snow in December.

    • Temperatures

  • In general, the average temperature in Grant County at the beginning of December is 0.9 °F. As the month progressed, temperatures tended to significantly warm up, reaching an average of 4.1 °F by the end of December.

    • More

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Average dry days
17
Dry days
Average rainy days
10
Rainy days
Average snowy days
4
Snow days
Average temperatures
3°/0°
Temperatures
Average wind speed
12 km/h
Avg max wind
Average humidity
93 %
Avg humidity

Grant County Weather December

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

Temperatures trend during December in Grant County

See the weather trend as well as the moving average line

December weather in Grant County day by day

Click on a date for more information
November January
Date Weather Temperatures Rain Snow More
Dec. 1 Overcast
Overcast
 3° /-2° 0 mm 0 cm
Dec. 2 Overcast
Overcast
 0° /-3° 0 mm 0 cm
Dec. 3 Overcast
Overcast
 0° /-1° 0 mm 0 cm
Dec. 4 Overcast
Overcast
 1° /0° 0 mm 0 cm
Dec. 5 Overcast
Overcast
 1° /0° 0 mm 0 cm
Dec. 6 Overcast
Overcast
 0° /0° 0 mm 0 cm
Dec. 7 Moderate or heavy snow showers
Moderate or heavy snow showers
 1° /-1° 9.9 mm 5.4 cm
Dec. 8 Overcast
Overcast
 3° /-2° 0 mm 0 cm
Dec. 9 Overcast
Overcast
 0° /-2° 0 mm 0 cm
Dec. 10 Overcast
Overcast
 -1° /-3° 0 mm 0 cm
Dec. 11 Overcast
Overcast
 3° /-1° 0 mm 0 cm
Dec. 12 Overcast
Overcast
 2° /-1° 0.1 mm 0 cm
Dec. 13 Light freezing rain
Light freezing rain
 2° /0° 3.8 mm 0 cm
Dec. 14 Overcast
Overcast
 5° /0° 8.6 mm 0 cm
Dec. 15 Overcast
Overcast
 2° /-1° 0 mm 0 cm
Dec. 16 Moderate or heavy rain shower
Moderate or heavy rain shower
 2° /0° 11.2 mm 2.1 cm
Dec. 17 Moderate or heavy rain shower
Moderate or heavy rain shower
 3° /0° 10.6 mm 0 cm
Dec. 18 Patchy rain possible
Patchy rain possible
 9° /0° 0.6 mm 0 cm
Dec. 19 Overcast
Overcast
 5° /0° 0.4 mm 0 cm
Dec. 20 Patchy rain possible
Patchy rain possible
 4° /0° 0.1 mm 0 cm
Dec. 21 Patchy rain possible
Patchy rain possible
 3° /0° 1.8 mm 0 cm
Dec. 22 Moderate rain at times
Moderate rain at times
 4° /1° 4.6 mm 0 cm
Dec. 23 Overcast
Overcast
 4° /1° 0 mm 0 cm
Dec. 24 Patchy rain possible
Patchy rain possible
 4° /1° 8.2 mm 0 cm
Dec. 25 Moderate snow
Moderate snow
 2° /-2° 11.7 mm 3.4 cm
Dec. 26 Moderate or heavy rain shower
Moderate or heavy rain shower
 9° /1° 27.9 mm 0 cm
Dec. 27 Moderate rain at times
Moderate rain at times
 3° /0° 4.7 mm 0.4 cm
Dec. 28 Overcast
Overcast
 8° /3° 10.5 mm 0 cm
Dec. 29 Heavy rain at times
Heavy rain at times
 4° /1° 6.2 mm 0 cm
Dec. 30 Moderate rain at times
Moderate rain at times
 3° /-1° 2.8 mm 0 cm
Dec. 31 Mist
Mist
 0° /0° 0 mm 0 cm
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Important Notice
Our weather forecast for Grant 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 Grant County forecast closer to your planned date for the most up-to-date weather information.
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Grant County in December - FAQ

What are the expected maximum and minimum temperatures in Grant County during December?
Brace for cold days with temperatures not exceeding 3° and nights that are likely to be freezing. Winter clothing is essential for comfort and safety.
How much rainfall should be expected in Grant County during December?
Significant rainfall exceeding 123.7 mm is expected in Grant County during December, occurring over more than 10 days. Preparing for wet conditions is recommended in your planning.
Will it snow in Grant County in December 2025?
Grant County experiences an average snowfall of 11.31 cm during December, occurring over 4 days.
What are the typical wind conditions in Grant County during December?
The average wind speed in Grant County during December is 12 km/h, suggesting breezy to windy conditions, depending on your activities.

Grant County snow forecast December 2025

Track daily snowfall levels and discover Grant County’s snowy potential this December ❄️

December rainfall patterns in Grant County

Explore the daily rainfall trends and prepare for Grant Countys December weather 💧
Top locations in Grant County
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Moses Lake
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Location coordinates Where is Grant County?

Get accurate weather forecasts for Grant County, located at latitude 47.13 and longitude -119.278. Stay updated with localized weather information tailored for Grant County.

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