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
As November transitions into December, Watsontown sees a drop in the average high-temperature, transitioning from a frosty 47.5°F (8.6°C) to a cold 37.8°F (3.2°C). In the month of December, an average of 27.5°F (-2.5°C) marks the low-temperature.Humidity
In Watsontown, the average relative humidity in December is 82%.Rainfall
In December, the rain falls for 12.5 days. Throughout December, 2.32" (59mm) of precipitation is accumulated. In Watsontown, during the entire year, the rain falls for 167.6 days and collects up to 30.83" (783mm) of precipitation.Snowfall
Months with snowfall are January through May, October through December. In Watsontown, in December, snow falls for 9.1 days, with typically accumulated 3.43" (87mm) of snow. Throughout the year, there are 47.2 snowfall days, and 20.51" (521mm) of snow is accumulated.Daylight
With an average of 9h and 18min of daylight, December has the shortest days of the year.On the first day of the month, sunrise is at 7:13 am and sunset at 4:39 pm. On the last day of December, sunrise is at 7:32 am and sunset at 4:49 pm EST.
Sunshine
In Watsontown, the average sunshine in December is 4.1h.UV index
January through March, October through December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index of 2, and less, symbolizes a minimal health vulnerability from unsafe exposure to UV radiation for the average person.Note: In December, a regular UV index of 2 translates into these guidelines:
Babies, children, and those with sensitive skin should always avoid extended periods in the sun. Being in direct Sun during midday can be harmful due to intense solar radiation; take precautions. Equip yourself with UVA and UVB-filtering sunglasses on clear, sunny days. Be attentive! The reflective property of snow can nearly double the Sun's UV radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Is December cold?
What is the average humidity in December in Watsontown?
How much does it rain in December?
How many days does it snow in December in Watsontown?
What is the month with the shortest days?
How many hours of daylight does Watsontown have in December?
When is the sunrise / sunset in December?
How long on average sun shines in December?
When is the lowest UV index?
How high is the UV index in December?
Average temperature in December
Watsontown, PA
- Average high temperature in December: 37.8°F
The warmest month (with the highest average high temperature) is July (81.9°F).
The month with the lowest average high temperature is January (31.8°F).
- Average low temperature in December: 27.5°F
The month with the highest average low temperature is July (59.9°F).
The coldest month (with the lowest average low temperature) is January (19.8°F).
Average pressure in December
Watsontown, PA
- Average pressure in December: 30.09"Hg
The month with the highest atmospheric pressure is November (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).
Average wind speed in December
Watsontown, PA
- Average wind speed in December: 7mph
The windiest month (with the highest average wind speed) is April (7.7mph).
The calmest month (with the lowest average wind speed) is August (4.7mph).
Average humidity in December
Watsontown, PA
- Average humidity in December: 82%
The month with the highest relative humidity is February (83%).
The months with the lowest relative humidity are March and April (77%).
Average rainfall in December
Watsontown, PA
- Average rainfall in December: 2.32"
The wettest month (with the highest rainfall) is May (3.23").
The driest month (with the least rainfall) is November (2.01").
Average rainfall days in December
Watsontown, PA
- Average rainfall days in December: 12.5 days
The month with the highest number of rainy days is May (17.7 days).
The month with the least rainy days is February (9.7 days).
Average snowfall in December
Watsontown, PA
- Average snowfall in December: 3.43"
The month with the highest snowfall is February (6.54").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Watsontown, PA
- Average snowfall days in December: 9.1 days
The month with the highest number of snowfall days is February (13 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Watsontown, PA
- 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 1min
The month with the most sunshine is July (Average sunshine: 10h and 18min).
The month with the least sunshine is February (Average sunshine: 3h and 54min).
Average sunshine days in December
Watsontown, PA
- Average sunshine days in December: 13.5 days
The month with the most sunshine days is November (16 days).
The month with the least sunshine days is February (9.3 days).
Average UV index in December
Watsontown, PA
- Average UV index in December: 2
The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January, February, March, October, November and December (UV index 2).
Average cloud cover in December
Watsontown, PA
- Average cloud cover in December: 57
The months with the most cloud cover are January, February and December (Cloud cover 57).
The month with the least cloud cover is July (Cloud cover 33).
Average visibility in December
Watsontown, PA
- Average visibility in December: 5mi
The month with the highest visibility is April (6mi).
The months with the lowest visibility are January, February, March, May, June, July, August, September, October, November and December (5mi).
Watsontown, Pennsylvania, USA
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