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 sea temperature 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
Welcoming December, Harvey observes a shift in the average high-temperature, falling from November's cold 37.6°F (3.1°C) to a freezing cold 26.8°F (-2.9°C). Harvey, in December, registers an average low temperature of 19.2°F (-7.1°C), showing a minute reduction from daily highs.Humidity
In December, the average relative humidity is 86%.Rainfall
In Harvey, in December, during 4.9 rainfall days, 1.77" (45mm) of precipitation is typically accumulated. In Harvey, during the entire year, the rain falls for 117.1 days and collects up to 23.35" (593mm) of precipitation.Snowfall
January through May, October through December are months with snowfall in Harvey. The month with the most snowfall in Harvey is December, when snow falls for 21 days and typically aggregates up to 9.8" (249mm) of snow.Ocean temperature
In December, the average ocean temperature is 39.9°F (4.4°C).Note: During swimming, this circumstance is both life-threatening and incredibly perilous. The intense cold sensation provokes rapid hyperventilation. The use of a specialized swimsuit is imperative to prevent thermal injuries.
Daylight
The month with the shortest days is December, with an average of 8h and 42min of daylight.On the first day of December in Harvey, sunrise is at 8:13 am and sunset at 5:04 pm. On the last day of the month, sunrise is at 8:33 am and sunset at 5:12 pm EST.
Sunshine
The average sunshine in December is 2.1h.UV index
January through March, November and December, with an average maximum UV index of 1, are months with the lowest UV index in Harvey. A UV Index value of 2, and less, symbolizes a minimal health vulnerability from exposure to the Sun's UV radiation for average individuals.Note: The daily maximum UV index of 1 in December interprets into the following advice:
Infants, children, and people with sensitive skin should always have protection against lengthy periods of sun exposure. Sun's radiation is most powerful around mid-day, so it's best to limit outdoor activities during this time. For effective sun eye protection, rely on sunglasses certified for UVA and UVB resistance. Take heed! The reflection of snow can intensify the Sun's UV radiation nearly double.
Frequently asked questions
How cold is it in Harvey in December?
What is the average humidity in December in Harvey?
How many days does it rain in December in Harvey?
When does it snow the most in Harvey?
How many days does it snow in December in Harvey?
How cold is the water in December in Harvey?
What is the month with the shortest days in Harvey?
What is the average length of the day in December in Harvey?
What time are sunrise and sunset in December in Harvey?
How long on average sun shines in December in Harvey?
What are the months with the lowest UV index in Harvey?
What is the UV index reading in December in Harvey?
Average temperature in December
Harvey, MI
- Average high temperature in December: 26.8°F
The warmest month (with the highest average high temperature) is July (73.2°F).
The month with the lowest average high temperature is January (21.4°F).
- Average low temperature in December: 19.2°F
The month with the highest average low temperature is August (56.1°F).
The coldest month (with the lowest average low temperature) is January (12.7°F).
Average pressure in December
Harvey, 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
Harvey, MI
- Average wind speed in December: 10.3mph
The windiest month (with the highest average wind speed) is January (10.6mph).
The calmest months (with the lowest average wind speed) are June, July and August (7.5mph).
Average humidity in December
Harvey, MI
- Average humidity in December: 86%
The month with the highest relative humidity is February (89%).
The month with the lowest relative humidity is May (72%).
Average rainfall in December
Harvey, MI
- Average rainfall in December: 1.77"
The wettest month (with the highest rainfall) is April (2.91").
The driest month (with the least rainfall) is January (1.26").
Average rainfall days in December
Harvey, MI
- Average rainfall days in December: 4.9 days
The month with the highest number of rainy days is May (14.3 days).
The month with the least rainy days is February (2.3 days).
Average snowfall in December
Harvey, MI
- Average snowfall in December: 9.8"
The month with the highest snowfall is December (9.8").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Harvey, MI
- Average snowfall days in December: 21 days
The month with the highest number of snowfall days is January (23.4 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average sea temperature in December
Harvey, MI
- Average sea temperature in December: 40°F
The best month for swimming (with the highest average sea temperature) is August (64.3°F).
The coldest months (with the lowest average sea temperature) are February and March (33.7°F).
Average daylight in December /
Average sunshine in December
Harvey, MI
- Average daylight in December: 8h and 4min
The month with the longest days is June (Average daylight: 15h and 48min).
The month with the shortest days is December (Average daylight: 8h and 42min).
- Average sunshine in December: 2h and 1min
The month with the most sunshine is July (Average sunshine: 10h and 0min).
The month with the least sunshine is January (Average sunshine: 1h and 48min).
Average sunshine days in December
Harvey, MI
- Average sunshine days in December: 8.6 days
The month with the most sunshine days is July (15.8 days).
The month with the least sunshine days is January (7.3 days).
Average UV index in December
Harvey, 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, March, November and December (UV index 1).
Average cloud cover in December
Harvey, MI
- Average cloud cover in December: 78
The month with the most cloud cover is January (Cloud cover 82).
The month with the least cloud cover is July (Cloud cover 34).
Average visibility in December
Harvey, MI
- Average visibility in December: 5mi
The months with the highest visibility are May, June, July, August, September and October (6mi).
The month with the lowest visibility is January (4mi).
Harvey, Michigan, USA
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