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
December, known for its average high temperature of 36.5°F (2.5°C) and an average low temperature of 25.5°F (-3.6°C), is the coldest month.Humidity
In December, the average relative humidity in Granger is 81%.Rainfall
In December, in Granger, the rain falls for 6.9 days. Throughout December, 0.35" (9mm) of precipitation is accumulated. In Granger, during the entire year, the rain falls for 78 days and collects up to 3.39" (86mm) of precipitation.Snowfall
Months with snowfall are January through March, September, November and December. The months with the most snowfall are January, February and December, with an average 0.94" (24mm) of accumulated snow.Daylight
December has the shortest days of the year, with an average of 8h and 42min of daylight.On the first day of the month, sunrise is at 7:24 am and sunset at 4:15 pm. On the last day of December, sunrise is at 7:43 am and sunset at 4:24 pm PST.
Sunshine
The average sunshine in December in Granger, Washington, is 5.5h.UV index
The months with the lowest UV index in Granger are January, February, November and December, with an average maximum UV index of 2. A UV Index estimate of 2, and below, represents a minimal health vulnerability from unsafe exposure to UV radiation for the average person.Note: A daily high UV index of 2 in December leads to these guidelines:
Apart from children, who require continuous protection, most can endure sun exposure for up to an hour without experiencing burns. The Sun's harshest UV rays are around midday; it's wise to seek shade and limit time outdoors. Experience reduced UV exposure by about half when donning a wide-brim hat. Be informed! The Sun's UV radiation can be nearly doubled due to the reflection from snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the coldest month in Granger?
How cold is it in Granger in December?
What is the average humidity in December in Granger?
How many days does it rain in December in Granger?
When does it snow the most in Granger?
How many days does it snow in December in Granger?
What is the month with the shortest days in Granger?
How many hours of daylight does Granger have in December?
When is the sunrise / sunset in December in Granger?
How long on average sun shines in December in Granger?
What are the months with the lowest UV index in Granger?
What is the UV index reading in December in Granger?
Average temperature in December
Granger, WA
- Average high temperature in December: 36.5°F
The warmest month (with the highest average high temperature) is July (86.9°F).
The month with the lowest average high temperature is December (36.5°F).
- Average low temperature in December: 25.5°F
The month with the highest average low temperature is August (60.8°F).
The coldest month (with the lowest average low temperature) is December (25.5°F).
Average pressure in December
Granger, WA
- Average pressure in December: 30.14"Hg
The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is August (29.92"Hg).
Average wind speed in December
Granger, WA
- Average wind speed in December: 4.8mph
The windiest month (with the highest average wind speed) is April (7.9mph).
The calmest month (with the lowest average wind speed) is December (4.8mph).
Average humidity in December
Granger, WA
- Average humidity in December: 81%
The month with the highest relative humidity is January (82%).
The month with the lowest relative humidity is July (38%).
Average rainfall in December
Granger, WA
- Average rainfall in December: 0.35"
The wettest month (with the highest rainfall) is May (0.63").
The driest month (with the least rainfall) is July (0.08").
Average rainfall days in December
Granger, WA
- Average rainfall days in December: 6.9 days
The month with the highest number of rainy days is March (9.9 days).
The months with the least rainy days are July and August (2.8 days).
Average snowfall in December
Granger, WA
- Average snowfall in December: 0.94"
The months with the highest snowfall are January, February and December (0.94").
The months with the least snowfall are April, May, June, July, August and October (0").
Average snowfall days in December
Granger, WA
- Average snowfall days in December: 4.7 days
The month with the highest number of snowfall days is December (4.7 days).
The months with the least snowfall days are April, May, June, July, August and October (0 days).
Average daylight in December /
Average sunshine in December
Granger, WA
- Average daylight in December: 8h and 4min
The month with the longest days is June (Average daylight: 15h and 42min).
The month with the shortest days is December (Average daylight: 8h and 42min).
- Average sunshine in December: 5h and 3min
The month with the most sunshine is July (Average sunshine: 12h and 6min).
The month with the least sunshine is January (Average sunshine: 5h and 18min).
Average sunshine days in December
Granger, WA
- Average sunshine days in December: 19.4 days
The month with the most sunshine days is July (26.6 days).
The month with the least sunshine days is March (17.3 days).
Average UV index in December
Granger, WA
- Average UV index in December: 2
The month with the highest UV index is July (UV index 7).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in December
Granger, WA
- Average cloud cover in December: 43
The month with the most cloud cover is January (Cloud cover 45).
The month with the least cloud cover is July (Cloud cover 9).
Average visibility in December
Granger, WA
- Average visibility in December: 5mi
The months with the highest visibility are February, March, April, May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January and December (5mi).
Granger, Washington, USA
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