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Nassau County (Glen Cove)
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United States weather

Weather in Nassau County, New York for December 2025

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

    Snow Forecast ❄️

  • With an average of 3 snowy days, Nassau County usually enjoys a light touch of snow in December.
    According to Nassau County snow forecast for December 2025, 1 snowy day is expected until the end of the month at Friday, December 26.

    • Temperatures

  • Until now, December 2025 in Nassau County is slightly cooler than the historical average by -1.5 °F.

  • Expect cooler weather in the next days in Nassau County with the forecast suggesting a temperature of 2.1 °F, lower than the historical average.

  • In general, the average temperature in Nassau County at the beginning of December is 3.1 °F. As the month progressed, temperatures tended to slightly decrease, reaching an average of 2.9 °F by the end of December.

    • Rain 🌧️

  • The climate of Nassau County in December is notably wet, with an average of 13 rainy days, and a total of 230.5 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
5°/0°
Temperatures
Average wind speed
21 km/h
Avg max wind
Average humidity
80 %
Avg humidity

Nassau County Weather December

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

Temperatures trend during December in Nassau County

See the weather trend as well as the moving average line

December weather in Nassau County day by day

Click on a date for more information
November January
Date Weather Temperatures Rain Snow More
Dec. 1 Overcast
Overcast
 3° /-1° 0 mm 0 cm
Dec. 2 Sunny
Sunny
 5° /0° 67.3 mm 0 cm
Dec. 3 Patchy rain possible
Patchy rain possible
 3° /0° 0.2 mm 0 cm
Dec. 4 Overcast
Overcast
 4° /-1° 0.1 mm 0 cm
Dec. 5 Moderate or heavy rain shower
Moderate or heavy rain shower
 2° /-3° 8.9 mm 0 cm
Dec. 6 Overcast
Overcast
 1° /-1° 0 mm 0 cm
Dec. 7 Sunny
Sunny
 4° /-1° 0.1 mm 0 cm
Dec. 8 Overcast
Overcast
 5° /-2° 0 mm 0 cm
Dec. 9 Moderate or heavy rain shower
Moderate or heavy rain shower
 5° /-2° 7.9 mm 0 cm
Dec. 10 Overcast
Overcast
 8° /3° 2.5 mm 0 cm
Dec. 11 Moderate or heavy rain shower
Moderate or heavy rain shower
 9° /3° 29.1 mm 0 cm
Dec. 12 Partly cloudy
Partly cloudy
 4° /-2° 1.7 mm 0.8 cm
Dec. 13 Sunny
Sunny
 2° /-3° 0 mm 0 cm
Dec. 14 Sunny
Sunny
 2° /-3° 0 mm 0 cm
Dec. 15 Sunny
Sunny
 -2° /-8° 0 mm 0 cm
Dec. 16 Sunny
Sunny
 1° /-4° 0 mm 0 cm
Dec. 17 Cloudy
Cloudy
 6° /-1° 0 mm 0 cm
Dec. 18 Patchy rain possible
Patchy rain possible
 6° /-1° 1.1 mm 0 cm
Dec. 19 Moderate rain
Moderate rain
 12° /-1° 16 mm 0 cm
Dec. 20 Partly cloudy
Partly cloudy
 1° /-2° 0 mm 0 cm
Dec. 21 Patchy rain possible
Patchy rain possible
 6° /3° 1 mm 0 cm
Dec. 22 Sunny
Sunny
 0° /-2° 0 mm 0 cm
Dec. 23 Partly cloudy
Partly cloudy
 4° /-1° 0 mm 0 cm
Dec. 24 Overcast
Overcast
 8° /4° 0 mm 0 cm
Dec. 25 Sunny
Sunny
 -3° /-5° 0 mm 0 cm
Dec. 26 Heavy snow
Heavy snow
 0° /-4° 3.5 mm 2.5 cm
Dec. 27 Sunny
Sunny
 -5° /-8° 0 mm 0 cm
Dec. 28 Sunny
Sunny
 -4° /-8° 0 mm 0 cm
Dec. 29 Moderate or heavy rain shower
Moderate or heavy rain shower
 12° /6° 5.1 mm 0 cm
Dec. 30 Moderate or heavy rain shower
Moderate or heavy rain shower
 12° /6° 35.7 mm 0 cm
Dec. 31 Fog
Fog
 8° /2° 0 mm 0 cm
Next
Important Notice
Our weather forecast for Nassau 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 Nassau County forecast closer to your planned date for the most up-to-date weather information.
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Nassau County in December - FAQ

What are the expected maximum and minimum temperatures in Nassau County during December?
Brace for cold days with temperatures not exceeding 5° and nights that are likely to be freezing. Winter clothing is essential for comfort and safety.
How much rainfall should be expected in Nassau County during December?
Significant rainfall exceeding 230.5 mm is expected in Nassau County during December, occurring over more than 13 days. Preparing for wet conditions is recommended in your planning.
Will it snow in Nassau County in December 2025?
Nassau County experiences an average snowfall of 4 cm during December, occurring over 3 days.
What are the typical wind conditions in Nassau County during December?
The average wind speed in Nassau County during December is 21 km/h, suggesting breezy to windy conditions, depending on your activities.

Nassau County snow forecast December 2025

Track daily snowfall levels and discover Nassau County’s snowy potential this December ❄️
On average, Nassau County sees 3 snowy days during December, with approximately 4 cm of total snowfall.

December rainfall patterns in Nassau County

Explore the daily rainfall trends and prepare for Nassau Countys December weather 💧
Typically, Nassau County has 13 rainy days in December with a total of 230.5 mm of rainfall.
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Glen Cove
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Location coordinates Where is Nassau County?

Get accurate weather forecasts for Nassau County, located at latitude 40.862 and longitude -73.634. Stay updated with localized weather information tailored for Nassau County.

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