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
Hillsdale experiences a temperature shift at the start of December, with average high-temperatures adjusting from a frosty 45.3°F (7.4°C) in November to an icy 34.5°F (1.4°C). The nighttime temperature dips to a freezing cold 25.2°F (-3.8°C) on average during December.Humidity
In Hillsdale, the average relative humidity in December is 84%.Rainfall
December is the month with the least rainfall. Rain falls for 7.6 days and accumulates 1.22" (31mm) of precipitation.Snowfall
January through May, October through December are months with snowfall. In Hillsdale, in December, snow falls for 10.5 days, with typically accumulated 2.05" (52mm) of snow. Throughout the year, there are 47.6 snowfall days, and 15.04" (382mm) of snow is accumulated.Daylight
The month with the shortest days is December, with an average of 9h and 12min of daylight.On the first day of December, sunrise is at 7:47 am and sunset at 5:08 pm. On the last day of the month, sunrise is at 8:06 am and sunset at 5:17 pm EST.
Sunshine
In December, the average sunshine is 3.3h.UV index
With an average maximum UV index of 1, December is the month with the lowest UV index. A UV Index of 2, and less, symbolizes a minimal health hazard from unsafe exposure to UV radiation for ordinary individuals.Note: The UV index of 1 in December translates into these instructions:
Babies, children, and individuals with sensitive skin should always have protection against extended sun exposure. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. Using UVA and UVB-protective sunglasses and sun-protective clothing is effective against UV radiation. Foresee this! The reflection from snow can nearly double the intensity of UV radiation from the Sun.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold is December?
What is the average humidity in December?
What is the driest month?
How much does it rain in Hillsdale in December?
How many days does it snow in December?
What is the month with the shortest days in Hillsdale?
What is the average length of the day in December?
When are sunrise and sunset in December?
How long on average sun shines in December?
When is the lowest UV index?
How high is the UV index in December in Hillsdale?
Average temperature in December
Hillsdale, MI
- Average high temperature in December: 34.5°F
The warmest month (with the highest average high temperature) is July (79°F).
The month with the lowest average high temperature is January (28.4°F).
- Average low temperature in December: 25.2°F
The month with the highest average low temperature is July (61.5°F).
The coldest month (with the lowest average low temperature) is January (17.1°F).
Average pressure in December
Hillsdale, MI
- Average pressure in December: 30.09"Hg
The month with the highest atmospheric pressure is November (30.1"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in December
Hillsdale, MI
- Average wind speed in December: 10mph
The windiest month (with the highest average wind speed) is January (10.6mph).
The calmest months (with the lowest average wind speed) are July and August (6.5mph).
Average humidity in December
Hillsdale, MI
- Average humidity in December: 84%
The months with the highest relative humidity are January and February (86%).
The month with the lowest relative humidity is October (77%).
Average rainfall in December
Hillsdale, MI
- Average rainfall in December: 1.22"
The wettest month (with the highest rainfall) is May (3.07").
The driest month (with the least rainfall) is December (1.22").
Average rainfall days in December
Hillsdale, MI
- Average rainfall days in December: 7.6 days
The month with the highest number of rainy days is May (18.7 days).
The month with the least rainy days is January (5.3 days).
Average snowfall in December
Hillsdale, MI
- Average snowfall in December: 2.05"
The month with the highest snowfall is February (4.13").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Hillsdale, MI
- Average snowfall days in December: 10.5 days
The month with the highest number of snowfall days is February (11.7 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Hillsdale, MI
- Average daylight in December: 9h and 1min
The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 12min).
- Average sunshine in December: 3h and 2min
The month with the most sunshine is July (Average sunshine: 9h and 54min).
The month with the least sunshine is January (Average sunshine: 2h and 54min).
Average sunshine days in December
Hillsdale, MI
- Average sunshine days in December: 14.7 days
The month with the most sunshine days is November (17.1 days).
The month with the least sunshine days is May (9.6 days).
Average UV index in December
Hillsdale, MI
- Average UV index in December: 1
The months with the highest UV index are May, June, July and August (UV index 5).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in December
Hillsdale, MI
- Average cloud cover in December: 66
The month with the most cloud cover is January (Cloud cover 71).
The month with the least cloud cover is July (Cloud cover 34).
Average visibility in December
Hillsdale, MI
- Average visibility in December: 6mi
The months with the highest visibility are March, April, May, June, October, November and December (6mi).
The months with the lowest visibility are January, February, July, August and September (5mi).
Hillsdale, Michigan, USA
Weather forecast for your location
2. Allow the app to use your location