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
December involves a decrease in temperature, down from a chilly 45.9°F in November to a cold 36.3°F. In Lewiston, the December nights are characterized by an average low-temperature of 28.8°F, a minor dip from daytime readings.Humidity
In Lewiston, the average relative humidity in December is 81%.Rainfall
In Lewiston, in December, it is raining for 11.1 days, with typically 2.24" of accumulated precipitation. In Lewiston, New York, during the entire year, the rain falls for 169.3 days and collects up to 30.31" of precipitation.Snowfall
Months with snowfall in Lewiston are January through May, October through December. In Lewiston, in December, snow falls for 13.5 days, with typically accumulated 3.7" of snow. In Lewiston, during the entire year, snow falls for 65.6 days and aggregates up to 22.6" of snow.Daylight
December has the shortest days of the year in Lewiston, with an average of 9h and 6min of daylight.On the first day of the month, sunrise is at 7:28 am and sunset at 4:42 pm. On the last day of December, in Lewiston, sunrise is at 7:47 am and sunset at 4:50 pm EST.
Sunshine
In Lewiston, New York, the average sunshine in December is 2.9h.UV index
The months with the lowest UV index in Lewiston are January and December, with an average maximum UV index of 1. A UV Index value of 2, and less, symbolizes a minimal health vulnerability from unprotected exposure to Sun's UV rays for the average person.Note: In December, the UV index of 1 transforms into the following advice:
Long-term sun exposure is typically not a concern for most. However, those with sensitive skin, infants, and children must always have protection. When the Sun is at its strongest around midday, find shade and limit exposure. Fend off the sun's harsh rays with appropriate clothing, a wide-brim hat, and UV-protective sunglasses. Consider this! The reflection from 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 many hours of sunshine does Lewiston have in December?
What are the months with the lowest UV index in Lewiston?
What is the UV index intensity in December in Lewiston?
Average temperature in December
Lewiston, NY
- Average high temperature in December: 36.3°F
The warmest month (with the highest average high temperature) is July (78.1°F).
The month with the lowest average high temperature is January (29.7°F).
- Average low temperature in December: 28.8°F
The month with the highest average low temperature is August (64.9°F).
The coldest month (with the lowest average low temperature) is January (20.5°F).
Average pressure in December
Lewiston, NY
- Average pressure in December: 30.06"Hg
The month with the highest atmospheric pressure is November (30.08"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed in December
Lewiston, NY
- Average wind speed in December: 11.5mph
The windiest month (with the highest average wind speed) is January (12.3mph).
The calmest month (with the lowest average wind speed) is July (7.1mph).
Average humidity in December
Lewiston, NY
- Average humidity in December: 81%
The month with the highest relative humidity is February (84%).
The months with the lowest relative humidity are August and September (74%).
Average rainfall in December
Lewiston, NY
- Average rainfall in December: 2.24"
The wettest month (with the highest rainfall) is July (3.11").
The driest month (with the least rainfall) is September (1.85").
Average rainfall days in December
Lewiston, NY
- Average rainfall days in December: 11.1 days
The month with the highest number of rainy days is May (17.6 days).
The month with the least rainy days is February (7.8 days).
Average snowfall in December
Lewiston, NY
- Average snowfall in December: 3.7"
The month with the highest snowfall is February (7.13").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Lewiston, NY
- Average snowfall days in December: 13.5 days
The month with the highest number of snowfall days is January (16.8 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, NY
- Average daylight in December: 9h and 1min
The month with the longest days is June (Average daylight: 15h and 18min).
The month with the shortest days is December (Average daylight: 9h and 6min).
- Average sunshine in December: 2h and 5min
The month with the most sunshine is July (Average sunshine: 10h and 36min).
The month with the least sunshine is January (Average sunshine: 2h and 42min).
Average sunshine days in December
Lewiston, NY
- Average sunshine days in December: 9.1 days
The month with the most sunshine days is September (14 days).
The month with the least sunshine days is January (6.8 days).
Average UV index in December
Lewiston, NY
- Average UV index in December: 1
The months with the highest UV index are July and August (UV index 6).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover in December
Lewiston, NY
- Average cloud cover in December: 69
The month with the most cloud cover is January (Cloud cover 74).
The month with the least cloud cover is August (Cloud cover 28).
Average visibility in December
Lewiston, NY
- Average visibility in December: 6mi
The months with the highest visibility are March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January and February (5mi).
Lewiston, New York, USA
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