Contents
- Weather in December
- Frequently asked questions
- Average temperature in December
- Average pressure in December
- Average wind speed in December
- Average humidity in December
- Average rainfall in December
- Average rainfall days in December
- Average snowfall in December
- Average snowfall days in December
- Average daylight in December
- Average sunshine in December
- Average sunshine days in December
- Average UV index in December
- Average cloud cover in December
- Average visibility in December
Weather in December
Temperature
The commencement of December includes a gentle temperature shift, with the average high-temperature dropping a bit from a fresh 51.1°F (10.6°C) in November to a cold 42.3°F (5.7°C). In the month of December, an average of 30.9°F (-0.6°C) marks the low-temperature in Chester Springs.Humidity
In Chester Springs, the average relative humidity in December is 79%.Rainfall
In Chester Springs, in December, during 7.9 rainfall days, 0.98" (25mm) of precipitation is typically accumulated. In Chester Springs, during the entire year, the rain falls for 132.3 days and collects up to 13.98" (355mm) of precipitation.Snowfall
January through March, November and December are months with snowfall in Chester Springs, Pennsylvania. In Chester Springs, during December, snow falls for 2.5 days and regularly aggregates up to 0.51" (13mm) of snow. In Chester Springs, Pennsylvania, during the entire year, snow falls for 15.1 days and aggregates up to 2.2" (56mm) of snow.Daylight
December has the shortest days of the year, with an average of 9h and 24min of daylight.On the first day of the month, sunrise is at 7:05 am and sunset at 4:37 pm. On the last day of December, sunrise is at 7:24 am and sunset at 4:47 pm EST.
Sunshine
The average sunshine in December is 4.8h.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 reading of 2, and below, represents a minimal health vulnerability from unprotected exposure to Sun's UV rays for average individuals.Note: A maximum UV index of 2 in December translates into the following recommendations:
While many people can endure lengthy sun exposure, it remains imperative to safeguard babies, children, and fair-skinned individuals. Midday is when the Sun's radiation is strongest; avoid prolonged exposure during this time. Wearing a wide-brim hat can block approximately 50% of UV radiation, protecting the eyes. Note well! The intensity of the Sun's UV rays can be nearly doubled by snow reflection.
Frequently asked questions
Is it cold in Chester Springs during December?
What is the average humidity in December in Chester Springs?
How much does it rain in Chester Springs in December?
How much does it snow in Chester Springs in December?
What is the month with the shortest days in Chester Springs?
How many hours of daylight does Chester Springs have in December?
What time are sunrise and sunset in December in Chester Springs?
How long on average sun shines in December in Chester Springs?
What is the month with the lowest UV index in Chester Springs?
What is the UV index reading in December in Chester Springs?
Average temperature in December
Chester Springs, PA
- Average high temperature in December: 42.3°F
The warmest month (with the highest average high temperature) is July (85.1°F).
The month with the lowest average high temperature is January (36°F).
- Average low temperature in December: 30.9°F
The month with the highest average low temperature is July (66.7°F).
The coldest month (with the lowest average low temperature) is January (23.9°F).
Average pressure in December
Chester Springs, PA
- Average pressure in December: 30.1"Hg
The month with the highest atmospheric pressure is November (30.12"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).
Average wind speed in December
Chester Springs, PA
- Average wind speed in December: 7.7mph
The windiest month (with the highest average wind speed) is March (8.3mph).
The calmest month (with the lowest average wind speed) is August (5.2mph).
Average humidity in December
Chester Springs, PA
- Average humidity in December: 79%
The month with the highest relative humidity is February (80%).
The months with the lowest relative humidity are April and July (74%).
Average rainfall in December
Chester Springs, PA
- Average rainfall in December: 0.98"
The wettest month (with the highest rainfall) is August (1.77").
The driest month (with the least rainfall) is February (0.75").
Average rainfall days in December
Chester Springs, PA
- Average rainfall days in December: 7.9 days
The month with the highest number of rainy days is May (15.3 days).
The month with the least rainy days is January (6.9 days).
Average snowfall in December
Chester Springs, PA
- Average snowfall in December: 0.51"
The months with the highest snowfall are January and February (0.59").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in December
Chester Springs, PA
- Average snowfall days in December: 2.5 days
The month with the highest number of snowfall days is February (4.9 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).
Average daylight in December /
Average sunshine in December
Chester Springs, PA
- Average daylight in December: 9h and 2min
The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 24min).
- Average sunshine in December: 4h and 5min
The month with the most sunshine is July (Average sunshine: 10h and 30min).
The month with the least sunshine is February (Average sunshine: 4h and 36min).
Average sunshine days in December
Chester Springs, PA
- Average sunshine days in December: 20.4 days
The month with the most sunshine days is January (20.7 days).
The month with the least sunshine days is June (12.8 days).
Average UV index in December
Chester Springs, PA
- Average UV index in December: 2
The months with the highest UV index are May, 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
Chester Springs, PA
- Average cloud cover in December: 48
The month with the most cloud cover is February (Cloud cover 49).
The month with the least cloud cover is July (Cloud cover 32).
Average visibility in December
Chester Springs, PA
- Average visibility in December: 6mi
The months with the highest visibility are January, February, March, April, June, July, August, October, November and December (6mi).
The months with the lowest visibility are May and September (5mi).
Chester Springs, Pennsylvania, USA
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