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
December brings a minor decrease, with the average high-temperature reducing from a chilly 44.2°F (6.8°C) in November to a cold 34.7°F (1.5°C). During December, Clifford consistently records a temperature low averaging a subzero cold 24.4°F (-4.2°C).Humidity
The average relative humidity in December is 85%.Rainfall
In Clifford, in December, during 10.7 rainfall days, 1.73" (44mm) of precipitation is typically accumulated. In Clifford, during the entire year, the rain falls for 152.2 days and collects up to 23.94" (608mm) of precipitation.Snowfall
Months with snowfall are January through May, October through December. In Clifford, during December, snow falls for 13.7 days and regularly aggregates up to 5.43" (138mm) of snow. In Clifford, during the entire year, snow falls for 71.7 days and aggregates up to 26.81" (681mm) of snow.Daylight
With an average of 9h and 12min of daylight, December has the shortest days of the year.On the first day of the month, sunrise is at 7:10 am and sunset at 4:32 pm. On the last day of December, in Clifford, sunrise is at 7:29 am and sunset at 4:41 pm EST.
Sunshine
The months with the least sunshine are February and December, with an average of 3.2h of sunshine.UV index
January and December, with an average maximum UV index of 1, are months with the lowest UV index. A UV Index reading of 2, and below, represents a low threat to health from unprotected exposure to Sun's UV rays for the ordinary person.Note: In December, the maximum UV index of 1 transforms into these recommendations:
Babies, children, and those with sensitive skin should always avoid extended periods in the sun. The Sun's radiation is especially intense around midday; try to stay in shade during this period. Tightly woven clothing, when worn loosely, shields effectively against the Sun. Be informed! The Sun's UV radiation can be nearly doubled due to the reflection from snow.
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Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold is it in December?
What is the average humidity in December?
How much does it rain in December?
How much does it snow in December?
What is the month with the shortest days?
How many hours of daylight does Clifford have in December?
When are sunrise and sunset in December?
What is the month with the least sunshine?
How long on average sun shines in December?
What is the month with the lowest UV index in Clifford?
What is the UV index reading in December in Clifford?
Average temperature in December
Clifford, PA
- Average high temperature in December: 34.7°F
The warmest month (with the highest average high temperature) is July (79.9°F).
The month with the lowest average high temperature is January (28.9°F).
- Average low temperature in December: 24.4°F
The month with the highest average low temperature is July (57.7°F).
The coldest month (with the lowest average low temperature) is January (17.1°F).
Average pressure in December
Clifford, PA
- Average pressure in December: 30.08"Hg
The month with the highest atmospheric pressure is November (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in December
Clifford, PA
- Average wind speed in December: 8.1mph
The windiest months (with the highest average wind speed) are January and February (8.5mph).
The calmest month (with the lowest average wind speed) is August (5.3mph).
Average humidity in December
Clifford, PA
- Average humidity in December: 85%
The month with the highest relative humidity is February (86%).
The month with the lowest relative humidity is July (78%).
Average rainfall in December
Clifford, PA
- Average rainfall in December: 1.73"
The wettest month (with the highest rainfall) is August (2.48").
The driest month (with the least rainfall) is January (1.54").
Average rainfall days in December
Clifford, PA
- Average rainfall days in December: 10.7 days
The month with the highest number of rainy days is May (16.7 days).
The month with the least rainy days is January (7.4 days).
Average snowfall in December
Clifford, PA
- Average snowfall in December: 5.43"
The month with the highest snowfall is March (5.55").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Clifford, PA
- Average snowfall days in December: 13.7 days
The month with the highest number of snowfall days is January (15.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Clifford, PA
- Average daylight in December: 9h and 1min
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 12min).
- Average sunshine in December: 3h and 1min
The month with the most sunshine is July (Average sunshine: 10h and 6min).
The months with the least sunshine are February and December (Average sunshine: 3h and 12min).
Average sunshine days in December
Clifford, PA
- Average sunshine days in December: 10.1 days
The month with the most sunshine days is September (16.2 days).
The month with the least sunshine days is April (9.8 days).
Average UV index in December
Clifford, PA
- 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 January and December (UV index 1).
Average cloud cover in December
Clifford, PA
- Average cloud cover in December: 68
The months with the most cloud cover are January, February and December (Cloud cover 68).
The month with the least cloud cover is July (Cloud cover 38).
Average visibility in December
Clifford, PA
- Average visibility in December: 5mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (5mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (5mi).
Clifford, Pennsylvania, USA
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