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
A subtle decrease in the average high-temperature marks December, falling from November's chilly 45°F (7.2°C) to a wintry 33.8°F (1°C). A mild drop to an average of 25.7°F (-3.5°C) marks the nights during December.Humidity
In Washington, the average relative humidity in December is 83%.Rainfall
The month with the least rainfall is December, when the rain falls for 9.4 days and typically collects 1.61" (41mm) of precipitation.Snowfall
Months with snowfall in Washington are January through May, October through December. In Washington, in December, during 15 snowfall days, 3.27" (83mm) of snow is typically accumulated. In Washington, Michigan, during the entire year, snow falls for 68.4 days and aggregates up to 20.55" (522mm) 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 the month, sunrise is at 7:43 am and sunset at 4:59 pm. On the last day of December, sunrise is at 8:02 am and sunset at 5:08 pm EST.
Sunshine
The average sunshine in December is 3.5h.UV index
The month with the lowest UV index in Washington, Michigan, is December, with an average maximum UV index of 1. A UV Index reading of 2, and below, represents a minimal health vulnerability from unprotected exposure to Sun's UV rays for the average person.Note: An average UV index of 1 in December transforms into this advice:
People with sensitive skin, children, and babies should always be protected from prolonged sun exposure. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. Select sunglasses that boast both UVA and UVB protection to limit the adverse effects of the sun on the eyes. 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 December in Washington?
What is the average humidity in December in Washington?
What is the driest month in Washington?
How much does it rain in Washington in December?
How many days does it snow in December in Washington?
What is the month with the shortest days in Washington?
How many hours of daylight does Washington have in December?
When are sunrise and sunset in December in Washington?
How many hours of sunshine does Washington have in December?
What is the month with the lowest UV index in Washington?
How high is the UV index in December in Washington?
Average temperature in December
Washington, MI
- Average high temperature in December: 33.8°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 (27.7°F).
- Average low temperature in December: 25.7°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 (17.4°F).
Average pressure in December
Washington, 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
Washington, MI
- Average wind speed in December: 9.8mph
The windiest month (with the highest average wind speed) is January (10.3mph).
The calmest month (with the lowest average wind speed) is July (6.6mph).
Average humidity in December
Washington, MI
- Average humidity in December: 83%
The months with the highest relative humidity are January and February (86%).
The month with the lowest relative humidity is April (76%).
Average rainfall in December
Washington, MI
- Average rainfall in December: 1.61"
The wettest month (with the highest rainfall) is April (3.03").
The driest month (with the least rainfall) is December (1.61").
Average rainfall days in December
Washington, MI
- Average rainfall days in December: 9.4 days
The month with the highest number of rainy days is May (17.9 days).
The month with the least rainy days is February (7 days).
Average snowfall in December
Washington, MI
- Average snowfall in December: 3.27"
The month with the highest snowfall is February (5.75").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Washington, MI
- Average snowfall days in December: 15 days
The month with the highest number of snowfall days is January (16.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Washington, MI
- Average daylight in December: 9h and 1min
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 3min
The month with the most sunshine is July (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 3h and 6min).
Average sunshine days in December
Washington, MI
- Average sunshine days in December: 11.1 days
The month with the most sunshine days is September (13.8 days).
The month with the least sunshine days is February (8.2 days).
Average UV index in December
Washington, MI
- Average UV index in December: 1
The month with the highest UV index is July (UV index 6).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in December
Washington, MI
- Average cloud cover in December: 64
The month with the most cloud cover is January (Cloud cover 68).
The month with the least cloud cover is July (Cloud cover 30).
Average visibility in December
Washington, 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).
Washington, Michigan, USA
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