December weather forecastSpring Valley, NY
December
Weather in December
The first month of the winter, December, is also a wintry month in Spring Valley, New York, with temperature in the range of an average low of 29.3°F (-1.5°C) and an average high of 40.3°F (4.6°C).Temperature
Spring Valley's weather changes with the onset of December, slightly falling from a cool 50.2°F (10.1°C) in November to a cold 40.3°F (4.6°C). During December, Spring Valley's temperature falls to a steady low-temperature average of 29.3°F (-1.5°C).Humidity
In Spring Valley, the average relative humidity in December is 78%.Rainfall
In Spring Valley, in December, it is raining for 9.5 days, with typically 2.6" (66mm) of accumulated precipitation. Throughout the year, there are 143.9 rainfall days, and 25.59" (650mm) of precipitation is accumulated.Snowfall
January through April, October through December are months with snowfall. In December, in Spring Valley, New York, it is snowing for 3.2 days. Throughout December, 2.09" (53mm) of snow is accumulated. In Spring Valley, during the entire year, snow falls for 22.9 days and aggregates up to 14.33" (364mm) of snow.Daylight
The month with the shortest days in Spring Valley is December, with an average of 9h and 18min of daylight.On the first day of December, sunrise is at 7:02 am and sunset at 4:28 pm. On the last day of the month, sunrise is at 7:21 am and sunset at 4:37 pm EST.
Sunshine
The average sunshine in December is 4.9h.UV index
January through March, November and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index estimate of 2, and below, represents a low threat to health from exposure to the Sun's UV radiation for average individuals.Note: A maximum UV index of 2 in December translates into the following recommendations:
The majority are not significantly affected by prolonged sun exposure. Infants, children, and those with fair skin must always have protection. Stay safe from the Sun's strongest UV rays by limiting exposure during midday. Counter UV radiation's ill effects with clothing designed for sun safety and UV-resistant eyewear. Keep in mind! Snow's reflective quality can nearly 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
Spring Valley, NY
- Average high temperature in December: 40.3°F
The warmest month (with the highest average high temperature) is July (84.7°F).
The month with the lowest average high temperature is January (34.9°F).
- Average low temperature in December: 29.3°F
The month with the highest average low temperature is July (65.7°F).
The coldest month (with the lowest average low temperature) is January (22.5°F).
Average pressure in December
Spring Valley, NY
- Average pressure in December: 30.07"Hg
The month with the highest atmospheric pressure is November (30.1"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in December
Spring Valley, NY
- Average wind speed in December: 7.1mph
The windiest month (with the highest average wind speed) is March (7.7mph).
The calmest months (with the lowest average wind speed) are July and August (5.2mph).
Average humidity in December
Spring Valley, NY
- Average humidity in December: 78%
The month with the highest relative humidity is February (79%).
The months with the lowest relative humidity are July and August (71%).
Average rainfall in December
Spring Valley, NY
- Average rainfall in December: 2.6"
The wettest month (with the highest rainfall) is July (2.76").
The driest month (with the least rainfall) is September (1.54").
Average rainfall days in December
Spring Valley, NY
- Average rainfall days in December: 9.5 days
The month with the highest number of rainy days is July (16.8 days).
The month with the least rainy days is January (6.7 days).
Average snowfall in December
Spring Valley, NY
- Average snowfall in December: 2.09"
The month with the highest snowfall is March (4.17").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in December
Spring Valley, NY
- Average snowfall days in December: 3.2 days
The month with the highest number of snowfall days is February (6.7 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Spring Valley, NY
- Average daylight in December: 9h and 18min
The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 18min).
- Average sunshine in December: 4h and 54min
The month with the most sunshine is July (Average sunshine: 10h and 24min).
The month with the least sunshine is February (Average sunshine: 4h and 30min).
Average sunshine days in December
Spring Valley, NY
- Average sunshine days in December: 19 days
The month with the most sunshine days is November (20.2 days).
The month with the least sunshine days is June (12.4 days).
Average UV index in December
Spring Valley, NY
- Average UV index in December: 2
The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February, March, November and December (UV index 2).
Average cloud cover in December
Spring Valley, NY
- Average cloud cover in December: 48
The month with the most cloud cover is March (Cloud cover 49).
The month with the least cloud cover is August (Cloud cover 33).
Average visibility in December
Spring Valley, NY
- Average visibility in December: 6mi
The months with the highest visibility are January, March, April, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are February and May (5mi).
