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, Saint Helen's weather changes as the average high-temperature falls from a cold 41.9°F (5.5°C) in November to a freezing cold 30.6°F (-0.8°C). Saint Helen's nocturnal readings in December exhibit minimal variation from the daytime temperatures, averaging at a still subzero cold 22.6°F (-5.2°C).Humidity
In Saint Helen, the average relative humidity in December is 85%.Rainfall
In Saint Helen, during December, the rain falls for 7.8 days and regularly aggregates up to 1.46" (37mm) of precipitation. In Saint Helen, Michigan, during the entire year, the rain falls for 136.5 days and collects up to 21.38" (543mm) of precipitation.Snowfall
Months with snowfall are January through May, October through December. In Saint Helen, Michigan, during December, snow falls for 16.8 days and regularly aggregates up to 5.24" (133mm) of snow. In Saint Helen, during the entire year, snow falls for 83.9 days and aggregates up to 28.27" (718mm) of snow.Daylight
With an average of 8h and 54min of daylight, December has the shortest days of the year in Saint Helen.On the first day of the month, sunrise is at 7:54 am and sunset at 4:59 pm. On the last day of December, sunrise is at 8:13 am and sunset at 5:08 pm EST.
Sunshine
In Saint Helen, the average sunshine in December is 2.7h.UV index
January, February, November and December, with an average maximum UV index of 1, are months with the lowest UV index in Saint Helen. A UV Index reading of 2, and below, represents a minimal health hazard from unsafe exposure to UV radiation for ordinary individuals.Note: A maximum UV index of 1 in December translates into the following recommendations:
Most individuals face no major issues with lengthy exposure to the sun, but children, infants, and individuals with fair skin always require protection. Considering the harmful UV rays from the Sun during midday, it's essential to reduce exposure. A wide-brimmed hat is a staple for defending the face, eyes, ears, and neck from the Sun. Take precaution! The reflection from snow can almost double the UV radiation of the Sun.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold is it in Saint Helen in December?
What is the average humidity in December in Saint Helen?
How many days does it rain in December in Saint Helen?
How much does it snow in Saint Helen in December?
What is the month with the shortest days in Saint Helen?
What is the average length of the day in December in Saint Helen?
When are sunrise and sunset in December in Saint Helen?
How long on average sun shines in December in Saint Helen?
What is the month with the lowest UV index in Saint Helen?
What is the UV index intensity in December in Saint Helen?
Average temperature in December
Saint Helen, MI
- Average high temperature in December: 30.6°F
The warmest month (with the highest average high temperature) is July (78.4°F).
The month with the lowest average high temperature is January (25.2°F).
- Average low temperature in December: 22.6°F
The month with the highest average low temperature is July (58.3°F).
The coldest month (with the lowest average low temperature) is January (15.4°F).
Average pressure in December
Saint Helen, MI
- Average pressure in December: 30.04"Hg
The month with the highest atmospheric pressure is March (30.09"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed in December
Saint Helen, MI
- Average wind speed in December: 8mph
The windiest month (with the highest average wind speed) is April (8.6mph).
The calmest month (with the lowest average wind speed) is July (6.2mph).
Average humidity in December
Saint Helen, MI
- Average humidity in December: 85%
The month with the highest relative humidity is January (89%).
The month with the lowest relative humidity is May (72%).
Average rainfall in December
Saint Helen, MI
- Average rainfall in December: 1.46"
The wettest months (with the highest rainfall) are May and October (2.68").
The driest month (with the least rainfall) is September (0.98").
Average rainfall days in December
Saint Helen, MI
- Average rainfall days in December: 7.8 days
The month with the highest number of rainy days is October (16.3 days).
The month with the least rainy days is February (4.4 days).
Average snowfall in December
Saint Helen, MI
- Average snowfall in December: 5.24"
The month with the highest snowfall is January (8.03").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Saint Helen, MI
- Average snowfall days in December: 16.8 days
The month with the highest number of snowfall days is January (21 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Saint Helen, 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 4min
The month with the most sunshine is July (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 2h and 12min).
Average sunshine days in December
Saint Helen, MI
- Average sunshine days in December: 10.6 days
The month with the most sunshine days is September (16.4 days).
The month with the least sunshine days is February (8.8 days).
Average UV index in December
Saint Helen, 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, November and December (UV index 1).
Average cloud cover in December
Saint Helen, MI
- Average cloud cover in December: 72
The month with the most cloud cover is January (Cloud cover 77).
The month with the least cloud cover is July (Cloud cover 32).
Average visibility in December
Saint Helen, MI
- Average visibility in December: 5mi
The months with the highest visibility are April, May, June, July, October and November (6mi).
The month with the lowest visibility is January (4mi).
Saint Helen, Michigan, USA
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