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 average high-temperature drops in December, from November's wintry 40.5°F (4.7°C) to a freezing cold 29.7°F (-1.3°C). Throughout the nights in December, Lewiston notes an average low of 21.6°F (-5.8°C), a small dip from the daytime peak.Humidity
In Lewiston, the average relative humidity in December is 87%.Rainfall
In December, the rain falls for 8.5 days. Throughout December, 1.65" (42mm) of precipitation is accumulated. Throughout the year, in Lewiston, there are 140.1 rainfall days, and 23.39" (594mm) of precipitation is accumulated.Snowfall
January through May, October through December are months with snowfall in Lewiston. In Lewiston, Michigan, during December, snow falls for 21.5 days and regularly aggregates up to 8.19" (208mm) of snow. In Lewiston, during the entire year, snow falls for 109.2 days and aggregates up to 47.09" (1196mm) of snow.Daylight
With an average of 8h and 54min of daylight, December has the shortest days of the year in Lewiston.On the first day of December, sunrise is at 7:55 am and sunset at 4:57 pm. On the last day of the month, sunrise is at 8:14 am and sunset at 5:06 pm EST.
Sunshine
In December, the average sunshine is 2.1h.UV index
January, February and December, with an average maximum UV index of 1, are months with the lowest UV index in Lewiston, Michigan. A UV Index estimate of 2, and below, represents a low health risk from unprotected exposure to Sun's UV rays for the ordinary person.Note: The daily maximum UV index of 1 in December interprets into the following advice:
Most individuals face no major issues with lengthy exposure to the sun, but children, infants, and individuals with fair skin always require protection. Avoiding the Sun's peak radiation during midday hours is essential for health and safety. For holistic sun protection encompassing the eyes, ears, face, and neck, a wide-brim hat is key. Be advised! The UV radiation from the Sun can be almost doubled due to the reflective properties of snow.
Frequently asked questions
How cold is it in Lewiston in December?
What is the average humidity in December in Lewiston?
How many days does it rain in December in Lewiston?
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?
When are sunrise and sunset in December in Lewiston?
How long on average sun shines in December in Lewiston?
What are the months with the lowest UV index in Lewiston?
What is the UV index reading in December in Lewiston?
Average temperature in December
Lewiston, MI
- Average high temperature in December: 29.7°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 (23.5°F).
- Average low temperature in December: 21.6°F
The month with the highest average low temperature is July (57°F).
The coldest month (with the lowest average low temperature) is February (14.4°F).
Average pressure in December
Lewiston, MI
- Average pressure in December: 30.03"Hg
The month with the highest atmospheric pressure is March (30.08"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed in December
Lewiston, MI
- Average wind speed in December: 7.8mph
The windiest month (with the highest average wind speed) is April (8.2mph).
The calmest months (with the lowest average wind speed) are July and August (6.2mph).
Average humidity in December
Lewiston, MI
- Average humidity in December: 87%
The months with the highest relative humidity are January and February (90%).
The month with the lowest relative humidity is May (70%).
Average rainfall in December
Lewiston, MI
- Average rainfall in December: 1.65"
The wettest month (with the highest rainfall) is May (2.76").
The driest month (with the least rainfall) is September (1.3").
Average rainfall days in December
Lewiston, MI
- Average rainfall days in December: 8.5 days
The month with the highest number of rainy days is October (17.5 days).
The months with the least rainy days are January and February (5 days).
Average snowfall in December
Lewiston, MI
- Average snowfall in December: 8.19"
The month with the highest snowfall is January (10.94").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Lewiston, MI
- Average snowfall days in December: 21.5 days
The month with the highest number of snowfall days is January (24.5 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, MI
- 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: 2h and 1min
The month with the most sunshine is July (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 1h and 42min).
Average sunshine days in December
Lewiston, MI
- Average sunshine days in December: 6.8 days
The month with the most sunshine days is September (14.6 days).
The month with the least sunshine days is February (5.4 days).
Average UV index in December
Lewiston, MI
- Average UV index in December: 1
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 and December (UV index 1).
Average cloud cover in December
Lewiston, MI
- Average cloud cover in December: 78
The month with the most cloud cover is January (Cloud cover 83).
The month with the least cloud cover is July (Cloud cover 34).
Average visibility in December
Lewiston, MI
- Average visibility in December: 4mi
The months with the highest visibility are May and June (6mi).
The months with the lowest visibility are January, February, March and December (4mi).
Lewiston, Michigan, USA
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