Block Island Weather: December
 |
Average Day Temperature: | 42.6°F |
|
Average Night Temperature: | 39.9°F |
|
Sea Water Temperature: | 50.5°F |
|
Number of Sunny Days: | 12 days |
| Sunshine Hours: | 9.2 - 9.4 hours | |
|
Number of Rainy Days: | 2 days |
| Precipitation Totals: | 1.4 in | |
| detailed information | ||
forecast
| Block Island |
Temperature
| Block Island |
Air Temperature in December, °F
The highest day temperature in December 2024 was 56°F. The lowest night temperature was 19°F. The average values for day and night temperatures during December were 40.5°F и 38.5°F respectivly.
Block Island Water Sea Temperature in December, °F
The average sea surface temperature in December 2024 for Block Island was 49.4°F. The maximum and minimum values were 45.4°F and 54.6°F respectively.
You can expect various weather conditions during December. Be ready for sunny, cloudy or even gloomy days.
Precipitation Totals in December, in
Precipitation total in December for Block Island is 1.4 in. It makes december the most rainy month of the year.
The average wind speed in December is 15.3 mph. It makes December one of the most windy months of the year for Block Island.
We are using day length and cloud cover information for each day of the month to calculate averages for this chart. Average sunny hours for Block Island in December is 4.8 hours.
Block Island on the Weather Map
| Chicago |  |
0 |
| Hawaii |  |
+78 |
| Honolulu | |
+78 |
| Houston | |
+46 |
| Las Vegas |  |
+40 |
| Los Angeles | |
+52 |
| Maui | |
+72 |
| Miami | |
+72 |
| Miami Beach | |
+80 |
| New York | |
+18 |
| San Diego | |
+54 |
| San Francisco | |
+46 |
| Sarasota | |
+62 |
| Tampa | |
+62 |
| Washington | |
+28 |
| 0300 |  |
16°F | S 15 mph |
| 0600 | |
16°F | S 11 mph |
| 0900 |  |
20°F | S 5 mph |
| 1200 | |
26°F | N 4 mph |
| 1500 |  |
28°F | NE 9 mph |
| 1800 |  |
32°F | NE 6 mph |
| 2100 | |
34°F | NE 6 mph |
| 0000 | |
36°F | NE 5 mph |