Nassau County (Glen Cove)
December
Weather in Nassau County, New York for December 2025
Your guide to Nassau County weather in December - trends and predictions
With an average of 3 snowy days, Nassau County usually enjoys a light touch of snow in December.
In general, the average temperature in Nassau County at the beginning of December is 2.7 °F. As the month progressed, temperatures tended to significantly warm up, reaching an average of 6.3 °F by the end of December.
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.
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Snow Forecast ❄️
Temperatures
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15
Dry days
13
Rainy days
3
Snow days
5°/0°
Temperatures
21 km/h
Avg max wind
80 %
Avg humidity
Nassau County Weather December
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Temperatures trend during December in Nassau County
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December weather in Nassau County day by day
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| Date | Weather | Temperatures | Rain | Snow | More |
|---|---|---|---|---|---|
| Dec. 1 |  Overcast | 2° /-2° | 0 mm | 0 cm | |
| Dec. 2 |  Sunny | 3° /-1° | 0 mm | 0 cm | |
| Dec. 3 |  Patchy rain possible | 3° /0° | 0.3 mm | 0 cm | |
| Dec. 4 | Overcast | 3° /0° | 0.2 mm | 0 cm | |
| Dec. 5 |  Moderate or heavy rain shower | 3° /0° | 17.7 mm | 0 cm | |
| Dec. 6 | Overcast | 1° /-1° | 0 mm | 0 cm | |
| Dec. 7 | Sunny | 4° /-2° | 0.1 mm | 0 cm | |
| Dec. 8 | Overcast | 9° /1° | 0 mm | 0 cm | |
| Dec. 9 | Moderate or heavy rain shower | 8° /2° | 15.7 mm | 0 cm | |
| Dec. 10 | Overcast | 11° /7° | 1.8 mm | 0 cm | |
| Dec. 11 | Moderate or heavy rain shower | 14° /7° | 58.3 mm | 0 cm | |
| Dec. 12 |  Partly cloudy | 6° /-1° | 3.4 mm | 1.6 cm | |
| Dec. 13 | Sunny | 1° /-3° | 0 mm | 0 cm | |
| Dec. 14 | Sunny | 2° /-3° | 0 mm | 0 cm | |
| Dec. 15 | Overcast | 2° /-1° | 0 mm | 0 cm | |
| Dec. 16 | Moderate or heavy rain shower | 11° /3° | 34.6 mm | 0 cm | |
| Dec. 17 | Moderate or heavy rain shower | 12° /7° | 18.3 mm | 0 cm | |
| Dec. 18 | Moderate rain at times | 8° /1° | 5.8 mm | 0 cm | |
| Dec. 19 |  Cloudy | 7° /2° | 1.7 mm | 0 cm | |
| Dec. 20 | Moderate rain at times | 4° /1° | 1.9 mm | 0 cm | |
| Dec. 21 |  Patchy moderate snow | 2° /-4° | 2.9 mm | 1.2 cm | |
| Dec. 22 | Sunny | -5° /-8° | 0 mm | 0 cm | |
| Dec. 23 | Partly cloudy | -2° /-9° | 0 mm | 0 cm | |
| Dec. 24 |  Moderate snow | 1° /-1° | 1.8 mm | 1.2 cm | |
| Dec. 25 | Sunny | 1° /-3° | 0 mm | 0 cm | |
| Dec. 26 | Sunny | 1° /-4° | 0 mm | 0 cm | |
| Dec. 27 | Partly cloudy | 3° /-4° | 0 mm | 0 cm | |
| Dec. 28 | Moderate or heavy rain shower | 7° /1° | 25.3 mm | 0 cm | |
| Dec. 29 | Moderate or heavy rain shower | 12° /6° | 5.1 mm | 0 cm | |
| Dec. 30 | Moderate or heavy rain shower | 12° /6° | 35.7 mm | 0 cm | |
| Dec. 31 |  Fog | 8° /2° | 0 mm | 0 cm | |
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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
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December rainfall patterns in Nassau County
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