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
In Mifflin, the average high-temperature in December decreases from a chilly 48.4°F (9.1°C) in November to an icy 39°F (3.9°C). In Mifflin, December nights cool down to an average of 27.5°F (-2.5°C).Humidity
The average relative humidity in December in Mifflin is 81%.Rainfall
In Mifflin, in December, it is raining for 10.5 days, with typically 2.17" (55mm) of accumulated precipitation. In Mifflin, during the entire year, the rain falls for 162 days and collects up to 28.86" (733mm) of precipitation.Snowfall
Months with snowfall in Mifflin are January through May, October through December. In Mifflin, in December, during 6 snowfall days, 2.76" (70mm) of snow is typically accumulated. In Mifflin, Pennsylvania, during the entire year, snow falls for 35.2 days and aggregates up to 16.42" (417mm) of snow.Daylight
With an average of 9h and 18min of daylight, December has the shortest days of the year in Mifflin.On the first day of December in Mifflin, Pennsylvania, sunrise is at 7:14 am and sunset at 4:43 pm. On the last day of the month, sunrise is at 7:33 am and sunset at 4:52 pm EST.
Sunshine
In Mifflin, the average sunshine in December is 4.1h.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 of 2, and less, symbolizes a low threat to health from exposure to the Sun's UV radiation for the average person.Note: A daily high UV index of 2 in December leads to these guidelines:
Babies, children, and individuals with sensitive skin should always have protection against extended sun exposure. The intensity of the Sun's UV radiation during midday suggests reducing time spent outdoors. It's wise to wear UVA and UVB-blocking sunglasses when the sun shines brightly. Be cautious! The UV radiation from the Sun can be magnified almost twofold by snow reflection.
Frequently asked questions
Is it cold in Mifflin during December?
What is the average humidity in December in Mifflin?
How much does it rain in Mifflin in December?
How much does it snow in Mifflin in December?
What is the month with the shortest days in Mifflin?
How many hours of daylight does Mifflin have in December?
When is the sunrise / sunset in December in Mifflin?
How many hours of sunshine does Mifflin have in December?
When is the lowest UV index in Mifflin?
What is the UV index intensity in December in Mifflin?
Average temperature in December
Mifflin, PA
- Average high temperature in December: 39°F
The warmest month (with the highest average high temperature) is July (83.5°F).
The month with the lowest average high temperature is January (32.9°F).
- Average low temperature in December: 27.5°F
The month with the highest average low temperature is July (60.8°F).
The coldest month (with the lowest average low temperature) is January (19.9°F).
Average pressure in December
Mifflin, PA
- Average pressure in December: 30.1"Hg
The month with the highest atmospheric pressure is November (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.95"Hg).
Average wind speed in December
Mifflin, PA
- Average wind speed in December: 7mph
The windiest month (with the highest average wind speed) is January (7.5mph).
The calmest month (with the lowest average wind speed) is August (4.4mph).
Average humidity in December
Mifflin, PA
- Average humidity in December: 81%
The month with the highest relative humidity is February (82%).
The month with the lowest relative humidity is July (75%).
Average rainfall in December
Mifflin, PA
- Average rainfall in December: 2.17"
The wettest month (with the highest rainfall) is May (3.31").
The driest months (with the least rainfall) are January and November (1.85").
Average rainfall days in December
Mifflin, PA
- Average rainfall days in December: 10.5 days
The month with the highest number of rainy days is May (19.1 days).
The month with the least rainy days is February (8.8 days).
Average snowfall in December
Mifflin, PA
- Average snowfall in December: 2.76"
The month with the highest snowfall is January (4.49").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Mifflin, PA
- Average snowfall days in December: 6 days
The month with the highest number of snowfall days is January (10.9 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Mifflin, 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 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 January (Average sunshine: 4h and 0min).
Average sunshine days in December
Mifflin, PA
- Average sunshine days in December: 16.6 days
The month with the most sunshine days is November (19.4 days).
The month with the least sunshine days is May (10.4 days).
Average UV index in December
Mifflin, PA
- Average UV index in December: 2
The month with the highest UV index is June (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
Mifflin, PA
- Average cloud cover in December: 56
The month with the most cloud cover is January (Cloud cover 57).
The month with the least cloud cover is July (Cloud cover 34).
Average visibility in December
Mifflin, 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).
Mifflin, Pennsylvania, USA
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