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 is the coldest month, exhibiting average temperatures of 37.4°F (3°C) at the peak and 27°F (-2.8°C) at the base.Humidity
In Wishram Heights, Washington, the average relative humidity in December is 83%.Rainfall
In December, in Wishram Heights, the rain falls for 12.6 days. Throughout December, 1.73" (44mm) of precipitation is accumulated. Throughout the year, in Wishram Heights, there are 112.2 rainfall days, and 10.91" (277mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through March, November and December. In Wishram Heights, in December, during 3.9 snowfall days, 2.09" (53mm) of snow is typically accumulated. In Wishram Heights, during the entire year, snow falls for 12.6 days and aggregates up to 7.6" (193mm) of snow.Daylight
The month with the shortest days is December, with an average of 8h and 48min of daylight.On the first day of the month, sunrise is at 7:24 am and sunset at 4:21 pm. On the last day of December, sunrise is at 7:44 am and sunset at 4:30 pm PST.
Sunshine
The average sunshine in December is 5.1h.UV index
The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 2. A UV Index value of 2, and less, symbolizes a minimal health hazard from unprotected exposure to Sun's UV rays for average individuals.Note: In December, a daily maximum UV index of 2 leads to the following instructions:
Children, babies, and those with sensitive skin should always be shielded from long periods of sun exposure. Direct exposure to the Sun during its peak hours around mid-day should be minimized for safety. Always opt for UVA and UVB-resistant sunglasses on radiant days. Consider this! The reflection from snow can almost double the intensity of the Sun's UV radiation.
Frequently asked questions
What time of the year is the coldest in Wishram Heights?
How cold is it in Wishram Heights in December?
What is the average humidity in December in Wishram Heights?
How many days does it rain in December in Wishram Heights?
How many days does it snow in December in Wishram Heights?
What is the month with the shortest days in Wishram Heights?
How many hours of daylight does Wishram Heights have in December?
What time are sunrise and sunset in December in Wishram Heights?
How long on average sun shines in December in Wishram Heights?
When is the lowest UV index in Wishram Heights?
What is the UV index intensity in December in Wishram Heights?
Average temperature in December
Wishram Heights, WA
- Average high temperature in December: 37.4°F
The warmest month (with the highest average high temperature) is July (83.5°F).
The month with the lowest average high temperature is December (37.4°F).
- Average low temperature in December: 27°F
The month with the highest average low temperature is August (57.9°F).
The coldest month (with the lowest average low temperature) is December (27°F).
Average pressure in December
Wishram Heights, WA
- Average pressure in December: 30.14"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is August (29.95"Hg).
Average wind speed in December
Wishram Heights, WA
- Average wind speed in December: 5mph
The windiest month (with the highest average wind speed) is June (7.9mph).
The calmest months (with the lowest average wind speed) are January and December (5mph).
Average humidity in December
Wishram Heights, WA
- Average humidity in December: 83%
The month with the highest relative humidity is January (84%).
The month with the lowest relative humidity is August (46%).
Average rainfall in December
Wishram Heights, WA
- Average rainfall in December: 1.73"
The wettest month (with the highest rainfall) is January (1.93").
The driest month (with the least rainfall) is July (0.12").
Average rainfall days in December
Wishram Heights, WA
- Average rainfall days in December: 12.6 days
The month with the highest number of rainy days is March (14.3 days).
The month with the least rainy days is July (2.9 days).
Average snowfall in December
Wishram Heights, WA
- Average snowfall in December: 2.09"
The month with the highest snowfall is February (2.87").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in December
Wishram Heights, WA
- Average snowfall days in December: 3.9 days
The months with the highest number of snowfall days are February and December (3.9 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).
Average daylight in December /
Average sunshine in December
Wishram Heights, WA
- Average daylight in December: 8h and 5min
The month with the longest days is June (Average daylight: 15h and 36min).
The month with the shortest days is December (Average daylight: 8h and 48min).
- Average sunshine in December: 5h and 1min
The months with the most sunshine are July and August (Average sunshine: 12h and 0min).
The month with the least sunshine is January (Average sunshine: 5h and 0min).
Average sunshine days in December
Wishram Heights, WA
- Average sunshine days in December: 13.8 days
The month with the most sunshine days is July (27 days).
The month with the least sunshine days is February (12.3 days).
Average UV index in December
Wishram Heights, WA
- Average UV index in December: 2
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in December
Wishram Heights, WA
- Average cloud cover in December: 46
The month with the most cloud cover is January (Cloud cover 49).
The months with the least cloud cover are July and August (Cloud cover 9).
Average visibility in December
Wishram Heights, WA
- Average visibility in December: 5mi
The months with the highest visibility are March, April, May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January, February and December (5mi).
Wishram Heights, Washington, USA
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