December weather forecastWesterlo, NY
December
Weather in December
The first month of the winter, December, is also an icy month in Westerlo, New York, with an average temperature varying between 24.4°F (-4.2°C) and 34.7°F (1.5°C).Temperature
December suggests a modest reduction in the average high-temperature, shifting from a frosty 45.5°F (7.5°C) in November to a cold 34.7°F (1.5°C). In the month of December, the average low-temperature usually rests at a subzero cold 24.4°F (-4.2°C).Humidity
In December, the average relative humidity is 81%.Rainfall
In Westerlo, New York, during December, the rain falls for 11.5 days and regularly aggregates up to 2.8" (71mm) of precipitation. In Westerlo, New York, during the entire year, the rain falls for 160.4 days and collects up to 32.44" (824mm) of precipitation.Snowfall
Months with snowfall in Westerlo are January through May, October through December. In Westerlo, during December, snow falls for 8.6 days and regularly aggregates up to 6.81" (173mm) of snow. In Westerlo, New York, during the entire year, snow falls for 51.2 days and aggregates up to 32.09" (815mm) of snow.Daylight
December has the shortest days of the year in Westerlo, with an average of 9h and 6min of daylight.On the first day of December in Westerlo, sunrise is at 7:06 am and sunset at 4:24 pm. On the last day of the month, sunrise is at 7:25 am and sunset at 4:33 pm EST.
Sunshine
In December, the average sunshine in Westerlo is 4.3h.UV index
December is the month with the lowest UV index, with an average maximum UV index of 1. A UV Index reading of 2, and below, represents a minimal health hazard from unprotected exposure to Sun's UV rays for ordinary individuals.Note: In December, the maximum UV index of 1 suggests these recommendations:
Sun exposure does not present considerable issues for many, yet infants, fair-skinned people, and children necessitate constant protection. Midday is the peak time for the Sun's radiation; stay in the shade and protect yourself. Always opt for UVA and UVB-resistant sunglasses on radiant days. Be watchful! The reflection of snow can enhance the intensity of the Sun's UV radiation nearly double.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Westerlo, NY
- Average high temperature in December: 34.7°F
The warmest month (with the highest average high temperature) is July (81.1°F).
The month with the lowest average high temperature is January (28.8°F).
- Average low temperature in December: 24.4°F
The month with the highest average low temperature is July (59.5°F).
The coldest month (with the lowest average low temperature) is January (16.7°F).
Average pressure in December
Westerlo, NY
- Average pressure in December: 30.06"Hg
The month with the highest atmospheric pressure is November (30.09"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed in December
Westerlo, NY
- Average wind speed in December: 7.6mph
The windiest months (with the highest average wind speed) are January and February (8.1mph).
The calmest month (with the lowest average wind speed) is August (5.2mph).
Average humidity in December
Westerlo, NY
- Average humidity in December: 81%
The month with the highest relative humidity is February (83%).
The month with the lowest relative humidity is April (74%).
Average rainfall in December
Westerlo, NY
- Average rainfall in December: 2.8"
The wettest month (with the highest rainfall) is October (3.19").
The driest month (with the least rainfall) is September (2.05").
Average rainfall days in December
Westerlo, NY
- Average rainfall days in December: 11.5 days
The month with the highest number of rainy days is May (17.4 days).
The month with the least rainy days is February (8.3 days).
Average snowfall in December
Westerlo, NY
- Average snowfall in December: 6.81"
The month with the highest snowfall is January (8.15").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Westerlo, NY
- Average snowfall days in December: 8.6 days
The month with the highest number of snowfall days is January (13.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Westerlo, NY
- Average daylight in December: 9h and 6min
The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 6min).
- Average sunshine in December: 4h and 18min
The month with the most sunshine is July (Average sunshine: 10h and 24min).
The month with the least sunshine is February (Average sunshine: 3h and 48min).
Average sunshine days in December
Westerlo, NY
- Average sunshine days in December: 14.1 days
The month with the most sunshine days is September (16.7 days).
The months with the least sunshine days are February and April (11.3 days).
Average UV index in December
Westerlo, NY
- Average UV index in December: 1
The month with the highest UV index is July (UV index 6).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in December
Westerlo, NY
- Average cloud cover in December: 54
The month with the most cloud cover is February (Cloud cover 58).
The months with the least cloud cover are July and August (Cloud cover 33).
Average visibility in December
Westerlo, NY
- Average visibility in December: 6mi
The months with the highest visibility are April, June, July, October, November and December (6mi).
The months with the lowest visibility are January, February, March, May, August and September (5mi).
