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 to December, the average high-temperature falls from a chilly 47.1°F (8.4°C) to a cold 37.4°F (3°C). Throughout the month of December, Millheim reports a steady low-temperature average of 26.8°F (-2.9°C).Humidity
February and December, with an average relative humidity of 83%, are the most humid months.Rainfall
In Millheim, in December, it is raining for 12.9 days, with typically 2.68" (68mm) of accumulated precipitation. In Millheim, during the entire year, the rain falls for 173.6 days and collects up to 33.23" (844mm) of precipitation.Snowfall
Months with snowfall in Millheim are January through May, October through December. In Millheim, in December, snow falls for 10.9 days, with typically accumulated 5.04" (128mm) of snow. Throughout the year, there are 55.7 snowfall days, and 28.62" (727mm) 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 7:15 am and sunset at 4:42 pm. On the last day of December, in Millheim, sunrise is at 7:34 am and sunset at 4:52 pm EST.
Sunshine
In Millheim, Pennsylvania, the average sunshine in December is 4.1h.UV index
The months with the lowest UV index in Millheim 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 threat to health from exposure to the Sun's UV rays for the average person.Note: A maximum daily UV index of 2 during December morphs into the following directions:
Protection from prolonged sun exposure is necessary for babies, children, and individuals with sensitive skin. To avoid the Sun's strongest rays, limit exposure around the mid-day period. For holistic sun protection encompassing the eyes, ears, face, and neck, a wide-brim hat is key. Take to heart! Snow reflection can almost magnify the Sun's UV radiation twofold.
Frequently asked questions
How cold is December in Millheim?
What are the most humid months in Millheim?
What is the average humidity in December in Millheim?
How much does it rain in Millheim in December?
How much does it snow in Millheim in December?
What is the month with the shortest days in Millheim?
What is the average length of the day in December in Millheim?
When are sunrise and sunset in December in Millheim?
How many hours of sunshine does Millheim have in December?
What is the month with the lowest UV index in Millheim?
How high is the UV index in December in Millheim?
Average temperature in December
Millheim, PA
- Average high temperature in December: 37.4°F
The warmest month (with the highest average high temperature) is July (82.4°F).
The month with the lowest average high temperature is January (31.3°F).
- Average low temperature in December: 26.8°F
The month with the highest average low temperature is July (60.4°F).
The coldest month (with the lowest average low temperature) is January (19.6°F).
Average pressure in December
Millheim, 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
Millheim, PA
- Average wind speed in December: 6.9mph
The windiest month (with the highest average wind speed) is April (7.5mph).
The calmest month (with the lowest average wind speed) is August (4.5mph).
Average humidity in December
Millheim, PA
- Average humidity in December: 83%
The months with the highest relative humidity are February and December (83%).
The month with the lowest relative humidity is July (76%).
Average rainfall in December
Millheim, PA
- Average rainfall in December: 2.68"
The wettest month (with the highest rainfall) is May (3.54").
The driest month (with the least rainfall) is November (2.2").
Average rainfall days in December
Millheim, PA
- Average rainfall days in December: 12.9 days
The month with the highest number of rainy days is May (19.7 days).
The month with the least rainy days is February (8.8 days).
Average snowfall in December
Millheim, PA
- Average snowfall in December: 5.04"
The month with the highest snowfall is February (7.44").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Millheim, PA
- Average snowfall days in December: 10.9 days
The month with the highest number of snowfall days is January (15 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Millheim, 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 12min).
The months with the least sunshine are January and February (Average sunshine: 3h and 54min).
Average sunshine days in December
Millheim, PA
- Average sunshine days in December: 11.5 days
The month with the most sunshine days is November (15.9 days).
The month with the least sunshine days is May (9.4 days).
Average UV index in December
Millheim, 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
Millheim, PA
- Average cloud cover in December: 58
The months with the most cloud cover are January, February and December (Cloud cover 58).
The month with the least cloud cover is July (Cloud cover 35).
Average visibility in December
Millheim, PA
- Average visibility in December: 5mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (5mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (5mi).
Millheim, Pennsylvania, USA
Weather forecast for your location
2. Allow the app to use your location
