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
Mesa, Washington, experiences its lowest temperatures in December, with an average peak of 36.5°F (2.5°C) and a low of 26.2°F (-3.2°C).Humidity
In Mesa, Washington, the average relative humidity in December is 80%.Rainfall
In December, in Mesa, the rain falls for 9.9 days. Throughout December, 0.91" (23mm) of precipitation is accumulated. In Mesa, Washington, during the entire year, the rain falls for 97 days and collects up to 7.36" (187mm) of precipitation.Snowfall
Months with snowfall are January through March, September, November and December. In Mesa, in December, snow falls for 4.1 days, with typically accumulated 1.22" (31mm) of snow. In Mesa, during the entire year, snow falls for 14.2 days and aggregates up to 5.43" (138mm) of snow.Daylight
The month with the shortest days is December, with an average of 8h and 36min of daylight.On the first day of the month, sunrise is at 7:20 am and sunset at 4:10 pm. On the last day of December, sunrise is at 7:40 am and sunset at 4:18 pm PST.
Sunshine
In December, the average sunshine is 5.3h.UV index
January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Mesa. A UV Index value of 2, and less, symbolizes a low health risk from unprotected exposure to Sun's UV rays for the average person.Note: In December, the maximum UV index of 2 transforms into these recommendations:
While most people are not greatly affected by extended sun exposure, those with fair skin, babies, and children must always have protection. UV radiation is strongest from the Sun during midday; protect yourself by staying in shaded areas. In bright sunlight, prioritize sunglasses that grant protection from UVA and UVB radiation. Notice this! Nearly double the intensity of the Sun's UV radiation can be caused by snow reflection.
Frequently asked questions
What time of the year is the coldest in Mesa?
How cold is it in Mesa in December?
What is the average humidity in December in Mesa?
How much does it rain in Mesa in December?
How many days does it snow in December in Mesa?
What is the month with the shortest days in Mesa?
How many hours of daylight does Mesa have in December?
When are sunrise and sunset in December in Mesa?
How many hours of sunshine does Mesa have in December?
When is the lowest UV index in Mesa?
How high is the UV index in December in Mesa?
Average temperature in December
Mesa, WA
- Average high temperature in December: 36.5°F
The warmest month (with the highest average high temperature) is July (89.1°F).
The month with the lowest average high temperature is December (36.5°F).
- Average low temperature in December: 26.2°F
The month with the highest average low temperature is August (63.1°F).
The coldest month (with the lowest average low temperature) is December (26.2°F).
Average pressure in December
Mesa, WA
- Average pressure in December: 30.16"Hg
The month with the highest atmospheric pressure is January (30.18"Hg).
The month with the lowest atmospheric pressure is August (29.9"Hg).
Average wind speed in December
Mesa, WA
- Average wind speed in December: 5.8mph
The windiest month (with the highest average wind speed) is April (8.5mph).
The calmest month (with the lowest average wind speed) is December (5.8mph).
Average humidity in December
Mesa, WA
- Average humidity in December: 80%
The month with the highest relative humidity is January (82%).
The months with the lowest relative humidity are July and August (36%).
Average rainfall in December
Mesa, WA
- Average rainfall in December: 0.91"
The wettest month (with the highest rainfall) is January (0.94").
The driest months (with the least rainfall) are July and August (0.2").
Average rainfall days in December
Mesa, WA
- Average rainfall days in December: 9.9 days
The month with the highest number of rainy days is March (12.8 days).
The month with the least rainy days is July (3.3 days).
Average snowfall in December
Mesa, WA
- Average snowfall in December: 1.22"
The month with the highest snowfall is February (1.97").
The months with the least snowfall are April, May, June, July, August and October (0").
Average snowfall days in December
Mesa, WA
- Average snowfall days in December: 4.1 days
The month with the highest number of snowfall days is December (4.1 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
Mesa, 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: 5h and 2min
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 12min).
Average sunshine days in December
Mesa, WA
- Average sunshine days in December: 16.6 days
The month with the most sunshine days is July (26.3 days).
The month with the least sunshine days is February (14.8 days).
Average UV index in December
Mesa, 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
Mesa, WA
- Average cloud cover in December: 45
The month with the most cloud cover is January (Cloud cover 47).
The month with the least cloud cover is July (Cloud cover 10).
Average visibility in December
Mesa, WA
- Average visibility in December: 6mi
The months with the highest visibility are February, March, April, May, June, July, August, September, October, November and December (6mi).
The month with the lowest visibility is January (5mi).
Mesa, Washington, USA
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