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
Hallowell in December undergoes a mild reduction in the average high-temperature, shifting from November's fresh 51.8°F (11°C) to a chilly 42.8°F (6°C). Throughout December, an average low-temperature of 31.1°F (-0.5°C) is expected.Humidity
February, October and December, with an average relative humidity of 78%, are the most humid months.Rainfall
December is the month with the most rainfall. Rain falls for 5.8 days and accumulates 0.75" (19mm) of precipitation.Snowfall
January through May, November and December are months with snowfall. In Hallowell, in December, snow falls for 1.7 days, with typically accumulated 0.28" (7mm) of snow. Throughout the year, there are 12.6 snowfall days, and 1.73" (44mm) of snow is accumulated.Daylight
The month with the shortest days is December, with an average of 9h and 24min of daylight.On the first day of December, sunrise is at 7:04 am and sunset at 4:35 pm. On the last day of the month, sunrise is at 7:22 am and sunset at 4:44 pm EST.
Sunshine
In Hallowell, the average sunshine in December is 5h.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 of 2, and less, symbolizes a low threat to health from exposure to the Sun's UV rays for average individuals.Note: In December, the maximum UV index of 2 suggests these recommendations:
While most individuals can withstand prolonged sun exposure, it is imperative that babies, children, and those with sensitive skin always be shielded. The most potent solar radiation is around mid-day, so one should minimize exposure to direct sunlight during this period. Select sunglasses that boast both UVA and UVB protection to limit the adverse effects of the sun on the eyes. Mind you! Snow reflection can increase the intensity of the Sun's UV radiation nearly twofold.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Is December cold?
What is the most humid month in Hallowell?
What is the average humidity in December?
What is the wettest month?
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 Hallowell have in December?
When are sunrise and sunset in December?
How many hours of sunshine does Hallowell have in December?
When is the lowest UV index?
What is the UV index reading in December?
Average temperature in December
Hallowell, PA
- Average high temperature in December: 42.8°F
The warmest month (with the highest average high temperature) is July (85.6°F).
The month with the lowest average high temperature is January (36.9°F).
- Average low temperature in December: 31.1°F
The month with the highest average low temperature is July (67.5°F).
The coldest month (with the lowest average low temperature) is January (24.3°F).
Average pressure in December
Hallowell, PA
- Average pressure in December: 30.09"Hg
The month with the highest atmospheric pressure is November (30.12"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).
Average wind speed in December
Hallowell, PA
- Average wind speed in December: 7.5mph
The windiest month (with the highest average wind speed) is March (8.4mph).
The calmest month (with the lowest average wind speed) is August (5.3mph).
Average humidity in December
Hallowell, PA
- Average humidity in December: 78%
The months with the highest relative humidity are February, October and December (78%).
The months with the lowest relative humidity are April, July and August (72%).
Average rainfall in December
Hallowell, PA
- Average rainfall in December: 0.75"
The wettest month (with the highest rainfall) is December (0.75").
The driest month (with the least rainfall) is September (0.2").
Average rainfall days in December
Hallowell, PA
- Average rainfall days in December: 5.8 days
The month with the highest number of rainy days is July (10.3 days).
The month with the least rainy days is January (4.3 days).
Average snowfall in December
Hallowell, PA
- Average snowfall in December: 0.28"
The month with the highest snowfall is February (0.43").
The months with the least snowfall are June, July, August, September and October (0").
Average snowfall days in December
Hallowell, PA
- Average snowfall days in December: 1.7 days
The month with the highest number of snowfall days is February (3.7 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Hallowell, 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 24min).
- Average sunshine in December: 5h and 0min
The month with the most sunshine is July (Average sunshine: 10h and 42min).
The month with the least sunshine is February (Average sunshine: 4h and 48min).
Average sunshine days in December
Hallowell, PA
- Average sunshine days in December: 23.2 days
The month with the most sunshine days is January (24.3 days).
The month with the least sunshine days is July (17.4 days).
Average UV index in December
Hallowell, PA
- Average UV index in December: 2
The months with the highest UV index are May, June, July and August (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
Hallowell, PA
- Average cloud cover in December: 47
The month with the most cloud cover is February (Cloud cover 48).
The month with the least cloud cover is July (Cloud cover 31).
Average visibility in December
Hallowell, PA
- Average visibility in December: 6mi
The months with the highest visibility are January, February, March, April, June, July, August, October, November and December (6mi).
The months with the lowest visibility are May and September (5mi).
Hallowell, Pennsylvania, USA
Weather forecast for your location
2. Allow the app to use your location