December weather forecastHartland, MI
December
Weather in December
The first month of the winter, December, is still a cold month in Hartland, Michigan, with temperature in the range of an average high of 33.1°F (0.6°C) and an average low of 24.4°F (-4.2°C).Temperature
Hartland's December weather features a mild decline in high-temperatures, reducing from a chilly 44.6°F (7°C) in November to an icy 33.1°F (0.6°C). Hartland's average nighttime temperature in December modestly descends to a subzero cold 24.4°F (-4.2°C).Humidity
In Hartland, the average relative humidity in December is 84%.Rainfall
February and December are months with the least rain when the rain falls for 8.5 days and typically aggregates up to 1.46" (37mm) of rain.Snowfall
Months with snowfall in Hartland are January through May, October through December. In December, in Hartland, it is snowing for 12.9 days. Throughout December, 2.99" (76mm) of snow is accumulated. In Hartland, during the entire year, snow falls for 57.3 days and aggregates up to 19.06" (484mm) of snow.Daylight
With an average of 9h and 6min of daylight, December has the shortest days of the year.On the first day of December, sunrise is at 7:46 am and sunset at 5:02 pm. On the last day of the month, sunrise is at 8:05 am and sunset at 5:11 pm EST.
Sunshine
In December, the average sunshine is 3.3h.UV index
The month with the lowest UV index is December, with an average maximum UV index of 1. A UV Index of 2, and less, symbolizes a minimal health hazard from exposure to the Sun's UV rays for the ordinary person.Note: In December, a regular UV index of 1 translates into these guidelines:
Extended sun exposure is not an issue for the majority. Children, infants, and fair-skinned individuals always need to be protected. For skin protection, it's recommended to minimize Sun exposure during its peak hours around midday. A hat with a generous brim can prevent nearly 50% of UV rays from reaching your eyes. Be advised! The UV radiation from the Sun can be almost doubled due to the reflective properties of snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Hartland, MI
- Average high temperature in December: 33.1°F
The warmest month (with the highest average high temperature) is July (79.3°F).
The month with the lowest average high temperature is January (27.5°F).
- Average low temperature in December: 24.4°F
The month with the highest average low temperature is July (61.7°F).
The coldest month (with the lowest average low temperature) is January (16.7°F).
Average pressure in December
Hartland, MI
- Average pressure in December: 30.07"Hg
The months with the highest atmospheric pressure are March and November (30.09"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in December
Hartland, MI
- Average wind speed in December: 9.7mph
The windiest month (with the highest average wind speed) is January (10.2mph).
The calmest month (with the lowest average wind speed) is July (6.5mph).
Average humidity in December
Hartland, MI
- Average humidity in December: 84%
The months with the highest relative humidity are January and February (87%).
The month with the lowest relative humidity is April (77%).
Average rainfall in December
Hartland, MI
- Average rainfall in December: 1.46"
The wettest month (with the highest rainfall) is May (3.27").
The driest months (with the least rainfall) are February and December (1.46").
Average rainfall days in December
Hartland, MI
- Average rainfall days in December: 8.5 days
The month with the highest number of rainy days is May (18.1 days).
The month with the least rainy days is February (5 days).
Average snowfall in December
Hartland, MI
- Average snowfall in December: 2.99"
The month with the highest snowfall is February (5.39").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Hartland, MI
- Average snowfall days in December: 12.9 days
The month with the highest number of snowfall days is January (16.2 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Hartland, MI
- Average daylight in December: 9h and 6min
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: 3h and 18min
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 48min).
Average sunshine days in December
Hartland, MI
- Average sunshine days in December: 13.5 days
The month with the most sunshine days is November (15.8 days).
The month with the least sunshine days is May (10.9 days).
Average UV index in December
Hartland, MI
- Average UV index in December: 1
The month with the highest UV index is August (UV index 6).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in December
Hartland, MI
- Average cloud cover in December: 66
The month with the most cloud cover is January (Cloud cover 70).
The month with the least cloud cover is July (Cloud cover 30).
Average visibility in December
Hartland, MI
- 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).
