December weather forecastBallston Spa, NY
December
Weather in December
The first month of the winter, December, is still a cold month in Ballston Spa, New York, with an average temperature fluctuating between 24.4°F (-4.2°C) and 33.8°F (1°C).Temperature
With the onset of December, Ballston Spa experiences a modest temperature adjustment, with the average high-temperature receding from a frosty 45.3°F (7.4°C) in November to an icy 33.8°F (1°C). Ballston Spa's average low-temperature during December nights is observed to be a subzero cold 24.4°F (-4.2°C).Humidity
The average relative humidity in December is 80%.Rainfall
In Ballston Spa, New York, in December, during 8.8 rainfall days, 2.64" (67mm) of precipitation is typically accumulated. In Ballston Spa, during the entire year, the rain falls for 140.7 days and collects up to 31.02" (788mm) of precipitation.Snowfall
Months with snowfall are January through May, October through December. In Ballston Spa, New York, during December, snow falls for 8.2 days and regularly aggregates up to 5.71" (145mm) of snow. Throughout the year, there are 43.3 snowfall days, and 27.44" (697mm) of snow is accumulated.Daylight
The month with the shortest days in Ballston Spa is December, with an average of 9h and 6min of daylight.On the first day of December, sunrise is at 7:07 am and sunset at 4:21 pm. On the last day of the month, sunrise is at 7:26 am and sunset at 4:30 pm EST.
Sunshine
In December, the average sunshine is 4.1h.UV index
The months with the lowest UV index are February and December, with an average maximum UV index of 1. A UV Index reading of 2, and below, represents a low threat to health from unsafe exposure to UV radiation for average individuals.Note: The daily high UV index of 1 during December translates into the following recommendations:
Those with sensitive skin, infants, and children require constant safeguarding from prolonged sun exposure. Exposing oneself to the midday Sun can be harmful due to the strong UV radiation; limit your time outside. Fend off the sun's harsh rays with appropriate clothing, a wide-brim hat, and UV-protective sunglasses. On your guard! Snow's reflection can almost double the intensity of the Sun's UV radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Ballston Spa, NY
- Average high temperature in December: 33.8°F
The warmest month (with the highest average high temperature) is July (81.3°F).
The month with the lowest average high temperature is January (28.2°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
Ballston Spa, 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
Ballston Spa, NY
- Average wind speed in December: 7.2mph
The windiest month (with the highest average wind speed) is April (7.7mph).
The calmest month (with the lowest average wind speed) is August (5.2mph).
Average humidity in December
Ballston Spa, NY
- Average humidity in December: 80%
The month with the highest relative humidity is February (83%).
The month with the lowest relative humidity is April (73%).
Average rainfall in December
Ballston Spa, NY
- Average rainfall in December: 2.64"
The wettest month (with the highest rainfall) is May (3.35").
The driest month (with the least rainfall) is March (1.97").
Average rainfall days in December
Ballston Spa, NY
- Average rainfall days in December: 8.8 days
The month with the highest number of rainy days is July (16.2 days).
The month with the least rainy days is January (6.6 days).
Average snowfall in December
Ballston Spa, NY
- Average snowfall in December: 5.71"
The month with the highest snowfall is January (7.32").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Ballston Spa, NY
- Average snowfall days in December: 8.2 days
The month with the highest number of snowfall days is January (11.4 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Ballston Spa, NY
- Average daylight in December: 9h and 6min
The month with the longest days is June (Average daylight: 15h and 18min).
The month with the shortest days is December (Average daylight: 9h and 6min).
- Average sunshine in December: 4h and 6min
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 36min).
Average sunshine days in December
Ballston Spa, NY
- Average sunshine days in December: 15.7 days
The month with the most sunshine days is November (17.9 days).
The month with the least sunshine days is July (12.8 days).
Average UV index in December
Ballston Spa, NY
- Average UV index in December: 1
The months with the highest UV index are May, June, July and August (UV index 5).
The months with the lowest UV index are February and December (UV index 1).
Average cloud cover in December
Ballston Spa, NY
- Average cloud cover in December: 57
The month with the most cloud cover is February (Cloud cover 60).
The months with the least cloud cover are July and August (Cloud cover 33).
Average visibility in December
Ballston Spa, 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).
