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
In December, the average high-temperature goes from a wintry 41.9°F (5.5°C) in November to a subzero cold 30.4°F (-0.9°C). During the month of December, Harmony's nighttime temperature lowers to an average of 19.8°F (-6.8°C).Humidity
In Harmony, the average relative humidity in December is 82%.Rainfall
In Harmony, in December, it is raining for 7.3 days, with typically 1.22" (31mm) of accumulated precipitation. In Harmony, during the entire year, the rain falls for 120.7 days and collects up to 15.79" (401mm) of precipitation.Snowfall
Months with snowfall are January through May, October through December. In December, it is snowing for 9.4 days. Throughout December, 3.07" (78mm) of snow is accumulated. Throughout the year, in Harmony, there are 48.1 snowfall days, and 17.32" (440mm) of snow is accumulated.Daylight
December has the shortest days of the year, with an average of 8h and 48min of daylight.On the first day of the month, sunrise is at 6:56 am and sunset at 3:58 pm. On the last day of December, sunrise is at 7:16 am and sunset at 4:06 pm EST.
Sunshine
The average sunshine in December is 4.2h.UV index
January through March, October through December, with an average maximum UV index of 2, are months with the lowest UV index in Harmony. A UV Index estimate of 2, and below, represents a minimal health vulnerability from unsafe exposure to UV radiation for average individuals.Note: The maximum UV index of 2 during December translates into these guidelines:
In contrast to children, who must always be shielded from the sun, most people can tolerate up to an hour of sun exposure without any burns. Midday is the peak time for the Sun's radiation; stay in the shade and protect yourself. Protect your eyes, ears, face, and neck from the Sun by wearing a wide-brimmed hat. Mind this! Nearly twice the UV radiation from the Sun can be reflected by the snow.
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 many days does it rain in December?
How much does it snow in December?
What is the month with the shortest days in Harmony?
How many hours of daylight does Harmony have in December?
When is the sunrise / sunset in December?
How many hours of sunshine does Harmony have in December?
What is the month with the lowest UV index?
What is the UV index intensity in December?
Average temperature in December
Harmony, ME
- Average high temperature in December: 30.4°F
The warmest month (with the highest average high temperature) is July (77.5°F).
The month with the lowest average high temperature is January (24.8°F).
- Average low temperature in December: 19.8°F
The month with the highest average low temperature is July (56.8°F).
The coldest month (with the lowest average low temperature) is January (11.3°F).
Average pressure in December
Harmony, 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
Harmony, ME
- Average wind speed in December: 7mph
The windiest month (with the highest average wind speed) is March (7.6mph).
The calmest month (with the lowest average wind speed) is August (5.3mph).
Average humidity in December
Harmony, ME
- Average humidity in December: 82%
The month with the highest relative humidity is February (87%).
The months with the lowest relative humidity are May and November (77%).
Average rainfall in December
Harmony, ME
- Average rainfall in December: 1.22"
The wettest months (with the highest rainfall) are April, June and October (1.73").
The driest months (with the least rainfall) are February and March (0.91").
Average rainfall days in December
Harmony, ME
- Average rainfall days in December: 7.3 days
The month with the highest number of rainy days is July (15.2 days).
The month with the least rainy days is February (4.3 days).
Average snowfall in December
Harmony, ME
- Average snowfall in December: 3.07"
The month with the highest snowfall is February (4.09").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Harmony, ME
- Average snowfall days in December: 9.4 days
The month with the highest number of snowfall days is February (11.1 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Harmony, ME
- Average daylight in December: 8h and 5min
The month with the longest days is June (Average daylight: 15h and 36min).
The month with the shortest days is December (Average daylight: 8h and 48min).
- Average sunshine in December: 4h and 1min
The month with the most sunshine is August (Average sunshine: 9h and 48min).
The month with the least sunshine is February (Average sunshine: 3h and 48min).
Average sunshine days in December
Harmony, ME
- Average sunshine days in December: 17.7 days
The month with the most sunshine days is January (19.6 days).
The month with the least sunshine days is July (12.4 days).
Average UV index in December
Harmony, ME
- Average UV index in December: 2
The months with the highest UV index are June, July and August (UV index 5).
The months with the lowest UV index are January, February, March, October, November and December (UV index 2).
Average cloud cover in December
Harmony, ME
- Average cloud cover in December: 54
The month with the most cloud cover is February (Cloud cover 58).
The months with the least cloud cover are August and September (Cloud cover 40).
Average visibility in December
Harmony, 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).
Harmony, Maine, USA
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