December weather forecast
Spring Valley, NY

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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.
Updated: Feb 13, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How cold is it in Spring Valley in December?

The average high-temperature and low-temperature in Spring Valley, New York, during December are 40.3°F (4.6°C) and 29.3°F (-1.5°C) respectively. The average heat index (a.k.a. 'apparent temperature', 'feels like'), which combines relative humidity and air temperature, in August is appraised at 87.8°F (31°C).

What is the average humidity in December in Spring Valley?

In Spring Valley, New York, the average relative humidity in December is 78%.

How many days does it rain in December in Spring Valley?

In Spring Valley, New York, in December, during 9.5 rainfall days, 2.6" (66mm) of precipitation is typically accumulated.

How much does it snow in Spring Valley in December?

In December, in Spring Valley, New York, it is snowing for 3.2 days. Throughout December, 2.09" (53mm) of snow is accumulated.

What is the month with the shortest days in Spring Valley?

December has the shortest days of the year in Spring Valley, with an average of 9h and 18min of daylight.

What is the average length of the day in December in Spring Valley?

In Spring Valley, New York, the average day length in December is 9h and 16min.

When is the sunrise / sunset in December in Spring Valley?

On the first day of December in Spring Valley, New York, 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.

How long on average sun shines in December in Spring Valley?

The average sunshine duration in December is 4.9h.

When is the lowest UV index in Spring Valley?

January through March, November and December, with an average maximum UV index of 2, are months with the lowest UV index.

What is the UV index reading in December in Spring Valley?

In December, the average daily maximum UV index in Spring Valley is 2. A UV Index of 2, and less, symbolizes a low health threat from exposure to the Sun's UV radiation.
Average humidity
Average rainfall days
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in December
Spring Valley, NY

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 - 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 - 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 - 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 - 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 - 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 - 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 - 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 / Average sunshine in December - Spring Valley, NY
  • Average daylight in December: 9h and 2min

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 5min

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 - 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 - 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 - 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 - 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).

Spring Valley, New York, USA

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