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
Elma's coldest temperatures are experienced in December, with average high temperatures of 43°F (6.1°C) and lows of 33.6°F (0.9°C).Humidity
December is the most humid month, with an average relative humidity of 91%.Rainfall
In Elma, during December, the rain falls for 18.2 days and regularly aggregates up to 4.13" (105mm) of precipitation. Throughout the year, there are 163.5 rainfall days, and 26.65" (677mm) of precipitation is accumulated.Snowfall
January through March, November and December are months with snowfall. In Elma, in December, during 0.6 snowfall days, 0.12" (3mm) of snow is typically accumulated. Throughout the year, there are 5.4 snowfall days, and 2.32" (59mm) of snow is accumulated.Daylight
December has the shortest days of the year, with an average of 8h and 36min of daylight.On the first day of December, sunrise is at 7:39 am and sunset at 4:26 pm. On the last day of the month, sunrise is at 7:59 am and sunset at 4:34 pm PST.
Sunshine
The month with the least sunshine is December, with an average of 3h of sunshine.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 of 2, and less, symbolizes a low threat to health from exposure to the Sun's UV rays for the average person.Note: An average maximum UV index of 2 in December leads to these recommendations:
While most people can stay under the sun for an hour without burning, children must always be guarded against sun exposure. Solar radiation peaks around mid-day, so it's wise to limit exposure to the Sun at this time. Your best bet for sun defense on the face, eyes, and neck is a hat with a wide brim. Heed this! Snow reflection can almost augment the UV radiation of the sun by double.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What part of the year is the coldest?
How cold is December?
What is the most humid month?
What is the average humidity in December?
How many days does it rain in December?
How many days does it snow in December?
What is the month with the shortest days in Elma?
How many hours of daylight does Elma have in December?
When are sunrise and sunset in December?
What is the month with the least sunshine?
How many hours of sunshine does Elma have in December?
What is the month with the lowest UV index?
What is the UV index reading in December?
Average temperature in December
Elma, WA
- Average high temperature in December: 43°F
The warmest month (with the highest average high temperature) is August (75.7°F).
The month with the lowest average high temperature is December (43°F).
- Average low temperature in December: 33.6°F
The month with the highest average low temperature is August (49.5°F).
The coldest months (with the lowest average low temperature) are February and December (33.6°F).
Average pressure in December
Elma, WA
- Average pressure in December: 30.06"Hg
The months with the highest atmospheric pressure are January and July (30.07"Hg).
The month with the lowest atmospheric pressure is March (30.01"Hg).
Average wind speed in December
Elma, WA
- Average wind speed in December: 4.5mph
The windiest months (with the highest average wind speed) are January and June (4.9mph).
The calmest month (with the lowest average wind speed) is September (3.7mph).
Average humidity in December
Elma, WA
- Average humidity in December: 91%
The month with the highest relative humidity is December (91%).
The month with the lowest relative humidity is July (75%).
Average rainfall in December
Elma, WA
- Average rainfall in December: 4.13"
The wettest month (with the highest rainfall) is January (4.37").
The driest month (with the least rainfall) is July (0.35").
Average rainfall days in December
Elma, WA
- Average rainfall days in December: 18.2 days
The month with the highest number of rainy days is March (19.4 days).
The month with the least rainy days is August (5.8 days).
Average snowfall in December
Elma, WA
- Average snowfall in December: 0.12"
The month with the highest snowfall is February (0.87").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in December
Elma, WA
- Average snowfall days in December: 0.6 days
The month with the highest number of snowfall days is February (2.3 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
Elma, WA
- Average daylight in December: 8h and 4min
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: 3h and 0min
The month with the most sunshine is July (Average sunshine: 9h and 54min).
The month with the least sunshine is December (Average sunshine: 3h and 0min).
Average sunshine days in December
Elma, WA
- Average sunshine days in December: 11.6 days
The month with the most sunshine days is August (22.2 days).
The month with the least sunshine days is March (9.3 days).
Average UV index in December
Elma, WA
- Average UV index in December: 2
The months with the highest UV index are June and 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
Elma, WA
- Average cloud cover in December: 70
The months with the most cloud cover are January and December (Cloud cover 70).
The month with the least cloud cover is July (Cloud cover 43).
Average visibility in December
Elma, WA
- Average visibility in December: 3mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September and October (4mi).
The months with the lowest visibility are November and December (3mi).
Elma, Washington, USA
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