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
The beginning of December marks a decrease in the average high-temperature, transitioning from a cold 42.6°F (5.9°C) in November to a freezing cold 31.1°F (-0.5°C). Hartland's nighttime temperature in December drops to an average of 20.3°F (-6.5°C).Humidity
The average relative humidity in December is 82%.Rainfall
In Hartland, in December, during 9.7 rainfall days, 3.27" (83mm) of precipitation is typically accumulated. In Hartland, during the entire year, the rain falls for 149.1 days and collects up to 31.22" (793mm) of precipitation.Snowfall
Months with snowfall are January through May, October through December. In Hartland, during December, snow falls for 10.7 days and regularly aggregates up to 7.6" (193mm) of snow. Throughout the year, in Hartland, there are 58.6 snowfall days, and 42.32" (1075mm) of snow is accumulated.Daylight
The month with the shortest days is December, with an average of 8h and 54min of daylight.On the first day of December, sunrise is at 6:56 am and sunset at 3:58 pm. On the last day of the month, sunrise is at 7:15 am and sunset at 4:06 pm EST.
Sunshine
In December, the average sunshine is 4.4h.UV index
The average daily maximum UV index in December is 2. A UV Index value of 2, and less, symbolizes a minimal health vulnerability from unprotected exposure to Sun's UV rays for ordinary individuals.Note: In December, an average UV index of 2 transforms into the following instructions:
The majority are not significantly affected by prolonged sun exposure. Infants, children, and those with fair skin must always have protection. To protect against the Sun's most potent rays, avoid direct exposure around midday. During bright days, sunglasses that offer UVA and UVB defense are recommended. Bear in mind! The Sun's UV radiation can nearly double in intensity due to the reflective quality of snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold is December?
What is the average humidity in December in Hartland?
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 Hartland have in December?
What time are sunrise and sunset in December?
How long on average sun shines in December?
What is the UV index reading in December?
Average temperature in December
Hartland, ME
- Average high temperature in December: 31.1°F
The warmest month (with the highest average high temperature) is July (76.8°F).
The month with the lowest average high temperature is January (25.3°F).
- Average low temperature in December: 20.3°F
The month with the highest average low temperature is July (56.5°F).
The coldest month (with the lowest average low temperature) is January (11.8°F).
Average pressure in December
Hartland, ME
- Average pressure in December: 30.01"Hg
The month with the highest atmospheric pressure is September (30.04"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in December
Hartland, ME
- Average wind speed in December: 7.3mph
The windiest month (with the highest average wind speed) is March (8mph).
The calmest month (with the lowest average wind speed) is August (5.2mph).
Average humidity in December
Hartland, ME
- Average humidity in December: 82%
The month with the highest relative humidity is February (86%).
The months with the lowest relative humidity are April, May and November (78%).
Average rainfall in December
Hartland, ME
- Average rainfall in December: 3.27"
The wettest months (with the highest rainfall) are April and October (3.31").
The driest month (with the least rainfall) is July (1.77").
Average rainfall days in December
Hartland, ME
- Average rainfall days in December: 9.7 days
The month with the highest number of rainy days is May (16.7 days).
The month with the least rainy days is January (7 days).
Average snowfall in December
Hartland, ME
- Average snowfall in December: 7.6"
The month with the highest snowfall is January (9.49").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Hartland, ME
- Average snowfall days in December: 10.7 days
The month with the highest number of snowfall days is February (13.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Hartland, ME
- Average daylight in December: 8h and 5min
The month with the longest days is June (Average daylight: 15h and 30min).
The month with the shortest days is December (Average daylight: 8h and 54min).
- Average sunshine in December: 4h and 2min
The month with the most sunshine is August (Average sunshine: 9h and 54min).
The month with the least sunshine is February (Average sunshine: 4h and 12min).
Average sunshine days in December
Hartland, ME
- Average sunshine days in December: 14.5 days
The month with the most sunshine days is September (16.7 days).
The month with the least sunshine days is April (11.2 days).
Average UV index in December
Hartland, ME
- Average UV index in December: 2
The months with the highest UV index are June, July and August (UV index 5).
The month with the lowest UV index is February (UV index 1).
Average cloud cover in December
Hartland, ME
- Average cloud cover in December: 52
The months with the most cloud cover are February, March and April (Cloud cover 54).
The months with the least cloud cover are August and September (Cloud cover 39).
Average visibility in December
Hartland, ME
- 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).
Hartland, Maine, USA
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