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 the onset of December, Millerstown experiences a modest temperature adjustment, with the average high-temperature receding from a frosty 49.5°F (9.7°C) in November to an icy 39.7°F (4.3°C). Throughout December, a steady low-temperature average of 28.6°F (-1.9°C) is noted.Humidity
In Millerstown, the average relative humidity in December is 80%.Rainfall
In Millerstown, during December, the rain falls for 10.6 days and regularly aggregates up to 2.13" (54mm) of precipitation. In Millerstown, during the entire year, the rain falls for 157.4 days and collects up to 28.46" (723mm) of precipitation.Snowfall
Months with snowfall are January through May, October through December. In December, it is snowing for 6 days. Throughout December, 1.73" (44mm) of snow is accumulated. Throughout the year, there are 32.9 snowfall days, and 13.94" (354mm) of snow is accumulated.Daylight
December has the shortest days of the year, with an average of 9h and 18min of daylight.On the first day of December, sunrise is at 7:13 am and sunset at 4:42 pm. On the last day of the month, sunrise is at 7:31 am and sunset at 4:51 pm EST.
Sunshine
In December, the average sunshine is 4.3h.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 value of 2, and less, symbolizes a low health risk from unsafe exposure to UV radiation for the ordinary person.Note: In December, a daily UV index of 2 turns into the following recommendations:
Sun exposure does not present considerable issues for many, yet infants, fair-skinned people, and children necessitate constant protection. To guard against the harmful effects of the Sun, minimize exposure during midday. Tightly woven clothing, when worn loosely, shields effectively against the Sun. Beware! Reflection from snow can magnify the Sun's UV radiation nearly twofold.
Published by: Weather U.S. | About Us
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 Millerstown have in December?
When is the sunrise / sunset in December?
How many hours of sunshine does Millerstown have in December?
What are the months with the lowest UV index?
What is the UV index intensity in December?
Average temperature in December
Millerstown, PA
- Average high temperature in December: 39.7°F
The warmest month (with the highest average high temperature) is July (83.8°F).
The month with the lowest average high temperature is January (33.6°F).
- Average low temperature in December: 28.6°F
The month with the highest average low temperature is July (62.1°F).
The coldest month (with the lowest average low temperature) is January (21.6°F).
Average pressure in December
Millerstown, 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
Millerstown, PA
- Average wind speed in December: 7mph
The windiest months (with the highest average wind speed) are March and April (7.6mph).
The calmest month (with the lowest average wind speed) is August (4.4mph).
Average humidity in December
Millerstown, PA
- Average humidity in December: 80%
The month with the highest relative humidity is February (81%).
The month with the lowest relative humidity is April (75%).
Average rainfall in December
Millerstown, PA
- Average rainfall in December: 2.13"
The wettest month (with the highest rainfall) is May (3.11").
The driest month (with the least rainfall) is February (2.01").
Average rainfall days in December
Millerstown, PA
- Average rainfall days in December: 10.6 days
The month with the highest number of rainy days is May (17.7 days).
The month with the least rainy days is January (8.3 days).
Average snowfall in December
Millerstown, PA
- Average snowfall in December: 1.73"
The month with the highest snowfall is February (3.94").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Millerstown, PA
- Average snowfall days in December: 6 days
The month with the highest number of snowfall days is January (9.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Millerstown, 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 2min
The month with the most sunshine is July (Average sunshine: 10h and 18min).
The months with the least sunshine are January and February (Average sunshine: 4h and 12min).
Average sunshine days in December
Millerstown, PA
- Average sunshine days in December: 15.1 days
The month with the most sunshine days is November (17.5 days).
The month with the least sunshine days is May (11.3 days).
Average UV index in December
Millerstown, PA
- Average UV index in December: 2
The months with the highest UV index are May, June and July (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
Millerstown, PA
- Average cloud cover in December: 54
The months with the most cloud cover are February and December (Cloud cover 54).
The month with the least cloud cover is July (Cloud cover 33).
Average visibility in December
Millerstown, PA
- Average visibility in December: 6mi
The months with the highest visibility are March, April, June, July, November and December (6mi).
The months with the lowest visibility are January, February, May, August, September and October (5mi).
Millerstown, Pennsylvania, USA
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