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 December's arrival, Lewiston's weather changes as the average high-temperature falls from a frosty 43.9°F (6.6°C) in November to a cold 32.7°F (0.4°C). In December, Lewiston records an average nighttime temperature of 22.1°F (-5.5°C).Humidity
The average relative humidity in December is 79%.Rainfall
In Lewiston, Maine, in December, it is raining for 5.9 days, with typically 1.38" (35mm) of accumulated precipitation. In Lewiston, during the entire year, the rain falls for 103.5 days and collects up to 14.96" (380mm) of precipitation.Snowfall
Months with snowfall are January through May, October through December. In Lewiston, during December, snow falls for 7.1 days and regularly aggregates up to 3.66" (93mm) of snow. In Lewiston, during the entire year, snow falls for 36.8 days and aggregates up to 18.31" (465mm) of snow.Daylight
With an average of 8h and 54min of daylight, December has the shortest days of the year.On the first day of the month, sunrise is at 6:56 am and sunset at 4:03 pm. On the last day of December, in Lewiston, Maine, sunrise is at 7:15 am and sunset at 4:12 pm EST.
Sunshine
In Lewiston, the average sunshine in December is 4.7h.UV index
The months with the lowest UV index are January through March, October through December, with an average maximum UV index of 2. A UV Index value of 2, and less, symbolizes a minimal health vulnerability from exposure to the Sun's UV radiation for the average person.Note: In December, the maximum UV index of 2 suggests these recommendations:
Sun exposure does not present considerable issues for many, yet infants, fair-skinned people, and children necessitate constant protection. For health reasons, it's advisable to reduce direct sun exposure during peak hours around midday. Sunglasses that guard against UVA and UVB rays are pivotal in minimizing sun-induced ocular damage. Consider carefully! The reflective quality of snow can almost double the intensity of the Sun's UV radiation.
Frequently asked questions
How cold is December in Lewiston?
What is the average humidity in December in Lewiston?
How much does it rain in Lewiston in December?
How many days does it snow in December in Lewiston?
What is the month with the shortest days in Lewiston?
What is the average length of the day in December in Lewiston?
What time are sunrise and sunset in December in Lewiston?
How long on average sun shines in December in Lewiston?
What is the month with the lowest UV index in Lewiston?
What is the UV index intensity in December in Lewiston?
Average temperature in December
Lewiston, ME
- Average high temperature in December: 32.7°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 (27°F).
- Average low temperature in December: 22.1°F
The month with the highest average low temperature is July (57.7°F).
The coldest month (with the lowest average low temperature) is January (13.3°F).
Average pressure in December
Lewiston, ME
- Average pressure in December: 30.02"Hg
The month with the highest atmospheric pressure is November (30.05"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in December
Lewiston, ME
- Average wind speed in December: 7mph
The windiest month (with the highest average wind speed) is March (7.5mph).
The calmest month (with the lowest average wind speed) is August (4.9mph).
Average humidity in December
Lewiston, ME
- Average humidity in December: 79%
The month with the highest relative humidity is February (84%).
The month with the lowest relative humidity is November (76%).
Average rainfall in December
Lewiston, ME
- Average rainfall in December: 1.38"
The wettest month (with the highest rainfall) is October (1.69").
The driest month (with the least rainfall) is September (0.67").
Average rainfall days in December
Lewiston, ME
- Average rainfall days in December: 5.9 days
The month with the highest number of rainy days is July (12.7 days).
The month with the least rainy days is February (4 days).
Average snowfall in December
Lewiston, ME
- Average snowfall in December: 3.66"
The month with the highest snowfall is February (4.72").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Lewiston, ME
- Average snowfall days in December: 7.1 days
The month with the highest number of snowfall days is January (8.7 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Lewiston, ME
- Average daylight in December: 8h and 5min
The month with the longest days is June (Average daylight: 15h and 24min).
The month with the shortest days is December (Average daylight: 8h and 54min).
- Average sunshine in December: 4h and 4min
The month with the most sunshine is August (Average sunshine: 10h and 6min).
The month with the least sunshine is February (Average sunshine: 4h and 36min).
Average sunshine days in December
Lewiston, ME
- Average sunshine days in December: 19 days
The month with the most sunshine days is January (20.8 days).
The month with the least sunshine days is July (16.2 days).
Average UV index in December
Lewiston, ME
- Average UV index in December: 2
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, February, March, October, November and December (UV index 2).
Average cloud cover in December
Lewiston, ME
- Average cloud cover in December: 49
The month with the most cloud cover is March (Cloud cover 51).
The months with the least cloud cover are August and September (Cloud cover 36).
Average visibility in December
Lewiston, ME
- Average visibility in December: 6mi
The months with the highest visibility are January, November and December (6mi).
The months with the lowest visibility are February, March, April, May, June, July, August, September and October (5mi).
Lewiston, Maine, USA
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