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
With December's arrival, Allens sees a decrease in average high-temperatures, moving from a frosty 46.6°F (8.1°C) in November to a cold 36.9°F (2.7°C). During the month of December, Allens's nighttime temperature lowers to an average of 26.8°F (-2.9°C).Humidity
In December, the average relative humidity is 83%.Rainfall
In Allens, during December, the rain falls for 11.5 days and regularly aggregates up to 2.28" (58mm) of precipitation. In Allens, during the entire year, the rain falls for 170.2 days and collects up to 32.2" (818mm) of precipitation.Snowfall
Months with snowfall are January through May, October through December. In Allens, in December, snow falls for 8.2 days, with typically accumulated 3.23" (82mm) of snow. Throughout the year, there are 41.9 snowfall days, and 19.76" (502mm) of snow is accumulated.Daylight
The month with the shortest days is December, with an average of 9h and 18min of daylight.On the first day of the month, sunrise is at 7:14 am and sunset at 4:39 pm. On the last day of December, in Allens, sunrise is at 7:33 am and sunset at 4:49 pm EST.
Sunshine
In Allens, the average sunshine in December is 3.9h.UV index
The month with the lowest UV index in Allens is December, with an average maximum UV index of 1. A UV Index of 2, and less, symbolizes a minimal health vulnerability from exposure to the Sun's UV radiation for the average person.Note: In December, a daily UV index of 1 turns into the following recommendations:
For the majority, extended sun exposure is not of great concern. Infants and people with sensitive skin must always be protected. Avoiding the Sun's peak radiation during midday hours is essential for health and safety. Arm yourself against UV rays' harm with protective apparel and UV-filtering shades. Be careful! The Sun's UV radiation can nearly be doubled by the reflective quality of snow.
Frequently asked questions
How cold is December in Allens?
What is the average humidity in December in Allens?
How much does it rain in Allens in December?
How much does it snow in Allens in December?
What is the month with the shortest days in Allens?
How many hours of daylight does Allens have in December?
What time are sunrise and sunset in December in Allens?
How long on average sun shines in December in Allens?
What is the month with the lowest UV index in Allens?
How high is the UV index in December in Allens?
Average temperature in December
Allens, PA
- Average high temperature in December: 36.9°F
The warmest month (with the highest average high temperature) is July (81.7°F).
The month with the lowest average high temperature is January (30.7°F).
- Average low temperature in December: 26.8°F
The month with the highest average low temperature is July (59.2°F).
The coldest month (with the lowest average low temperature) is January (19°F).
Average pressure in December
Allens, 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
Allens, PA
- Average wind speed in December: 7.2mph
The windiest months (with the highest average wind speed) are January, March and April (7.6mph).
The calmest month (with the lowest average wind speed) is August (4.8mph).
Average humidity in December
Allens, PA
- Average humidity in December: 83%
The month with the highest relative humidity is February (84%).
The month with the lowest relative humidity is April (77%).
Average rainfall in December
Allens, PA
- Average rainfall in December: 2.28"
The wettest month (with the highest rainfall) is July (3.43").
The driest month (with the least rainfall) is November (1.93").
Average rainfall days in December
Allens, PA
- Average rainfall days in December: 11.5 days
The month with the highest number of rainy days is July (19.4 days).
The month with the least rainy days is February (8.8 days).
Average snowfall in December
Allens, PA
- Average snowfall in December: 3.23"
The month with the highest snowfall is February (6.18").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Allens, PA
- Average snowfall days in December: 8.2 days
The month with the highest number of snowfall days is January (11.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Allens, 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: 3h and 5min
The month with the most sunshine is July (Average sunshine: 10h and 6min).
The month with the least sunshine is February (Average sunshine: 3h and 42min).
Average sunshine days in December
Allens, PA
- Average sunshine days in December: 14.8 days
The month with the most sunshine days is November (17.3 days).
The month with the least sunshine days is July (9.9 days).
Average UV index in December
Allens, PA
- Average UV index in December: 1
The months with the highest UV index are May, June, July and August (UV index 5).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in December
Allens, PA
- Average cloud cover in December: 59
The months with the most cloud cover are January, February and December (Cloud cover 59).
The month with the least cloud cover is July (Cloud cover 36).
Average visibility in December
Allens, 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).
Allens, Pennsylvania, USA
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