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
In Monroe, Washington, the month of December is known for its lowest average temperatures, reaching a high of 41.2°F (5.1°C) and a low of 31.8°F (-0.1°C).Humidity
January, February and December, with an average relative humidity of 86%, are the most humid months in Monroe.Rainfall
The month with the most rainfall is December, when the rain falls for 12.4 days and typically aggregates up to 1.85" (47mm) of precipitation.Snowfall
January through April, November and December are months with snowfall. In Monroe, during December, snow falls for 1.1 days and regularly aggregates up to 0.2" (5mm) of snow. Throughout the year, there are 7 snowfall days, and 2.64" (67mm) of snow is accumulated.Daylight
December has the shortest days of the year, with an average of 8h and 30min of daylight.On the first day of December, sunrise is at 7:36 am and sunset at 4:17 pm. On the last day of the month, sunrise is at 7:56 am and sunset at 4:25 pm PST.
Sunshine
December has the least sunshine of the year in Monroe, with an average of 3.8h of sunshine.UV index
January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Monroe. A UV Index of 2, and less, symbolizes a low threat to health from unprotected exposure to Sun's UV rays for the ordinary person.Note: In December, an average UV index of 2 transforms into the following instructions:
It is important to always shield children, babies, and individuals with sensitive skin from prolonged exposure to the sun. To avoid the Sun's strongest rays, limit exposure around the mid-day period. During bright days, sunglasses that offer UVA and UVB defense are recommended. Be on the lookout! Nearly twofold UV radiation from the Sun can be reflected by snow.
Frequently asked questions
What time of the year is the coldest in Monroe?
How cold is it in Monroe in December?
What are the most humid months in Monroe?
What is the average humidity in December in Monroe?
What is the wettest month in Monroe?
How many days does it rain in December in Monroe?
How much does it snow in Monroe in December?
What is the month with the shortest days in Monroe?
How many hours of daylight does Monroe have in December?
When is the sunrise / sunset in December in Monroe?
What is the month with the least sunshine in Monroe?
How long on average sun shines in December in Monroe?
What is the month with the lowest UV index in Monroe?
How high is the UV index in December in Monroe?
Average temperature in December
Monroe, WA
- Average high temperature in December: 41.2°F
The warmest month (with the highest average high temperature) is August (75.6°F).
The month with the lowest average high temperature is December (41.2°F).
- Average low temperature in December: 31.8°F
The month with the highest average low temperature is August (49.8°F).
The coldest month (with the lowest average low temperature) is December (31.8°F).
Average pressure in December
Monroe, WA
- Average pressure in December: 30.09"Hg
The month with the highest atmospheric pressure is January (30.1"Hg).
The month with the lowest atmospheric pressure is August (30"Hg).
Average wind speed in December
Monroe, WA
- Average wind speed in December: 4.5mph
The windiest month (with the highest average wind speed) is January (4.9mph).
The calmest month (with the lowest average wind speed) is August (3.3mph).
Average humidity in December
Monroe, WA
- Average humidity in December: 86%
The months with the highest relative humidity are January, February and December (86%).
The month with the lowest relative humidity is July (71%).
Average rainfall in December
Monroe, WA
- Average rainfall in December: 1.85"
The wettest month (with the highest rainfall) is December (1.85").
The driest month (with the least rainfall) is August (0.2").
Average rainfall days in December
Monroe, WA
- Average rainfall days in December: 12.4 days
The month with the highest number of rainy days is March (13.6 days).
The month with the least rainy days is August (4 days).
Average snowfall in December
Monroe, WA
- Average snowfall in December: 0.2"
The month with the highest snowfall is February (1.02").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in December
Monroe, WA
- Average snowfall days in December: 1.1 days
The month with the highest number of snowfall days is February (2.8 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in December /
Average sunshine in December
Monroe, WA
- Average daylight in December: 8h and 3min
The month with the longest days is June (Average daylight: 16h and 0min).
The month with the shortest days is December (Average daylight: 8h and 30min).
- Average sunshine in December: 3h and 5min
The month with the most sunshine is August (Average sunshine: 10h and 36min).
The month with the least sunshine is December (Average sunshine: 3h and 48min).
Average sunshine days in December
Monroe, WA
- Average sunshine days in December: 17.1 days
The month with the most sunshine days is August (25.5 days).
The month with the least sunshine days is April (15 days).
Average UV index in December
Monroe, WA
- Average UV index in December: 2
The month with the highest UV index is July (UV index 5).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in December
Monroe, WA
- Average cloud cover in December: 60
The month with the most cloud cover is December (Cloud cover 60).
The month with the least cloud cover is August (Cloud cover 28).
Average visibility in December
Monroe, WA
- Average visibility in December: 4mi
The month with the highest visibility is July (6mi).
The months with the lowest visibility are January, February, March, April, November and December (4mi).
Monroe, Washington, USA
Weather forecast for your location
2. Allow the app to use your location
