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 drop in Mifflintown's average high-temperature, falling from a frosty 48.4°F (9.1°C) in November to a wintry 39°F (3.9°C). Mifflintown's nighttime temperature during December is consistently averaged at a freezing cold 27.5°F (-2.5°C).Humidity
In Mifflintown, the average relative humidity in December is 81%.Rainfall
In December, the rain falls for 10.5 days. Throughout December, 2.17" (55mm) of precipitation is accumulated. Throughout the year, there are 162 rainfall days, and 28.86" (733mm) of precipitation is accumulated.Snowfall
Months with snowfall in Mifflintown are January through May, October through December. In Mifflintown, in December, during 6 snowfall days, 2.76" (70mm) of snow is typically accumulated. In Mifflintown, during the entire year, snow falls for 35.2 days and aggregates up to 16.42" (417mm) of snow.Daylight
The month with the shortest days is December, with an average of 9h and 18min of daylight.On the first day of December in Mifflintown, 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
The average sunshine in December is 4.1h.UV index
The months with the lowest UV index are January through March, November and December, with an average maximum UV index of 2. A UV Index reading of 2, and below, represents a minimal health hazard from unsafe exposure to UV radiation for the average person.Note: The maximum UV index of 2 during December translates into these guidelines:
Extended time in the sun generally does not harm most, but those with sensitive skin, infants, and children should always be protected. Solar radiation peaks around mid-day, so it's wise to limit exposure to the Sun at this time. For excellent sun protection for the eyes, ears, face, and neck, consider a wide-brim hat. Be mindful! The reflection from snow can increase the Sun's UV radiation nearly twice.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Is it cold during 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 Mifflintown have in December?
When are sunrise and sunset in December?
How many hours of sunshine does Mifflintown have in December?
What are the months with the lowest UV index?
What is the UV index reading in December?
Average temperature in December
Mifflintown, 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
Mifflintown, 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
Mifflintown, 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
Mifflintown, 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
Mifflintown, 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
Mifflintown, 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
Mifflintown, 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
Mifflintown, 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
Mifflintown, 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
Mifflintown, 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
Mifflintown, 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
Mifflintown, 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
Mifflintown, 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).
Mifflintown, Pennsylvania, USA
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