December weather forecastEast Kittitas, WA
December
Weather in December
December, the first month of the winter in East Kittitas, is also a wintry month, with an average temperature varying between 33.3°F (0.7°C) and 21.4°F (-5.9°C).Temperature
December stands out as East Kittitas's coldest month, with an average high-temperature of 33.3°F (0.7°C) and a low-temperature of 21.4°F (-5.9°C).Humidity
In East Kittitas, the average relative humidity in December is 85%.Rainfall
The month with the most rainfall in East Kittitas, Washington, is December, when the rain falls for 9.4 days and typically aggregates up to 1.3" (33mm) of precipitation.Snowfall
January through April, September through December are months with snowfall. The month with the most snowfall is December, when snow falls for 8.7 days and typically aggregates up to 4.65" (118mm) of snow.Daylight
With an average of 8h and 36min of daylight, December has the shortest days of the year in East Kittitas.On the first day of the month, sunrise is at 7:27 am and sunset at 4:14 pm. On the last day of December, in East Kittitas, sunrise is at 7:47 am and sunset at 4:22 pm PST.
Sunshine
The months with the least sunshine in East Kittitas are January and December, with an average of 4.8h of sunshine.UV index
January through March, November and December, with an average maximum UV index of 2, are months with the lowest UV index in East Kittitas. A UV Index estimate of 2, and below, represents a low threat to health from unsafe exposure to UV radiation for average individuals.Note: A maximum UV index of 2 in December translates into the following recommendations:
Babies, children, and individuals with sensitive skin should always have protection against extended sun exposure. Solar radiation is at its peak intensity during midday, so it's advisable to stay indoors or in the shade. Opt for tightly woven and loose clothing to enhance protection from the Sun. Mark this! Snow reflection can nearly double the UV radiation intensity from the Sun.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
East Kittitas, WA
- Average high temperature in December: 33.3°F
The warmest months (with the highest average high temperature) are July and August (82°F).
The month with the lowest average high temperature is December (33.3°F).
- Average low temperature in December: 21.4°F
The month with the highest average low temperature is August (55.2°F).
The coldest month (with the lowest average low temperature) is December (21.4°F).
Average pressure in December
East Kittitas, WA
- Average pressure in December: 30.13"Hg
The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is August (29.94"Hg).
Average wind speed in December
East Kittitas, WA
- Average wind speed in December: 4.2mph
The windiest month (with the highest average wind speed) is June (8.9mph).
The calmest month (with the lowest average wind speed) is December (4.2mph).
Average humidity in December
East Kittitas, WA
- Average humidity in December: 85%
The month with the highest relative humidity is January (87%).
The months with the lowest relative humidity are July and August (46%).
Average rainfall in December
East Kittitas, WA
- Average rainfall in December: 1.3"
The wettest month (with the highest rainfall) is December (1.3").
The driest month (with the least rainfall) is July (0.16").
Average rainfall days in December
East Kittitas, WA
- Average rainfall days in December: 9.4 days
The month with the highest number of rainy days is March (12.4 days).
The month with the least rainy days is August (2.8 days).
Average snowfall in December
East Kittitas, WA
- Average snowfall in December: 4.65"
The month with the highest snowfall is December (4.65").
The months with the least snowfall are May, June, July and August (0").
Average snowfall days in December
East Kittitas, WA
- Average snowfall days in December: 8.7 days
The months with the highest number of snowfall days are January and December (8.7 days).
The months with the least snowfall days are May, June, July and August (0 days).
Average daylight in December /
Average sunshine in December
East Kittitas, WA
- Average daylight in December: 8h and 36min
The month with the longest days is June (Average daylight: 15h and 48min).
The month with the shortest days is December (Average daylight: 8h and 36min).
- Average sunshine in December: 4h and 48min
The months with the most sunshine are July and August (Average sunshine: 12h and 0min).
The months with the least sunshine are January and December (Average sunshine: 4h and 48min).
Average sunshine days in December
East Kittitas, WA
- Average sunshine days in December: 15.3 days
The month with the most sunshine days is July (27.1 days).
The month with the least sunshine days is February (13.5 days).
Average UV index in December
East Kittitas, 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, March, November and December (UV index 2).
Average cloud cover in December
East Kittitas, WA
- Average cloud cover in December: 47
The month with the most cloud cover is January (Cloud cover 48).
The months with the least cloud cover are July and August (Cloud cover 11).
Average visibility in December
East Kittitas, WA
- Average visibility in December: 4mi
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 and December (4mi).
