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 month when Quincy experiences its coldest temperatures, averaging a high of 33.4°F (0.8°C) and a low of 22.6°F (-5.2°C).Humidity
In December, the average relative humidity is 84%.Rainfall
December is the month with the most rainfall. Rain falls for 9.7 days and accumulates 1.1" (28mm) of precipitation.Snowfall
January through April, September, November and December are months with snowfall. December is the month with the most snowfall. Snow falls for 8.1 days and accumulates 4.45" (113mm) of snow.Daylight
With an average of 8h and 36min of daylight, December has the shortest days of the year in Quincy.On the first day of the month, sunrise is at 7:26 am and sunset at 4:11 pm. On the last day of December, sunrise is at 7:45 am and sunset at 4:19 pm PST.
Sunshine
The average sunshine in December is 5h.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 estimate of 2, and below, represents a low threat to health from exposure to the Sun's UV rays for the ordinary person.Note: A maximum high daily UV index of 2 during December translates into the following directions:
Infants, children, and people with sensitive skin should always have protection against lengthy periods of sun exposure. Being in direct Sun during midday can be harmful due to intense solar radiation; take precautions. A wide-brimmed hat provides unparalleled sun protection for sensitive areas like the eyes, ears, and neck. Beware! Reflection from snow can magnify the Sun's UV radiation nearly twofold.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the coldest month in Quincy?
How cold is December?
What is the average humidity in December?
What is the wettest month?
How many days does it rain in December?
When does it snow the most?
How many days does it snow in December?
What is the month with the shortest days?
How many hours of daylight does Quincy have in December?
When are sunrise and sunset in December?
How long on average sun shines in December?
What are the months with the lowest UV index?
What is the UV index reading in December?
Average temperature in December
Quincy, WA
- Average high temperature in December: 33.4°F
The warmest month (with the highest average high temperature) is July (86.5°F).
The month with the lowest average high temperature is December (33.4°F).
- Average low temperature in December: 22.6°F
The month with the highest average low temperature is August (60.4°F).
The coldest month (with the lowest average low temperature) is December (22.6°F).
Average pressure in December
Quincy, 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 (29.92"Hg).
Average wind speed in December
Quincy, WA
- Average wind speed in December: 4.5mph
The windiest month (with the highest average wind speed) is April (7.1mph).
The calmest month (with the lowest average wind speed) is December (4.5mph).
Average humidity in December
Quincy, WA
- Average humidity in December: 84%
The month with the highest relative humidity is January (85%).
The month with the lowest relative humidity is July (38%).
Average rainfall in December
Quincy, WA
- Average rainfall in December: 1.1"
The wettest month (with the highest rainfall) is December (1.1").
The driest month (with the least rainfall) is August (0.24").
Average rainfall days in December
Quincy, WA
- Average rainfall days in December: 9.7 days
The month with the highest number of rainy days is March (13.1 days).
The month with the least rainy days is July (3.9 days).
Average snowfall in December
Quincy, WA
- Average snowfall in December: 4.45"
The month with the highest snowfall is December (4.45").
The months with the least snowfall are May, June, July, August and October (0").
Average snowfall days in December
Quincy, WA
- Average snowfall days in December: 8.1 days
The month with the highest number of snowfall days is December (8.1 days).
The months with the least snowfall days are May, June, July, August and October (0 days).
Average daylight in December /
Average sunshine in December
Quincy, WA
- Average daylight in December: 8h and 4min
The month with the longest days is June (Average daylight: 15h and 54min).
The month with the shortest days is December (Average daylight: 8h and 36min).
- Average sunshine in December: 5h and 0min
The month with the most sunshine is August (Average sunshine: 12h and 6min).
The month with the least sunshine is January (Average sunshine: 4h and 48min).
Average sunshine days in December
Quincy, WA
- Average sunshine days in December: 16.2 days
The month with the most sunshine days is July (26 days).
The month with the least sunshine days is February (14.3 days).
Average UV index in December
Quincy, 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
Quincy, WA
- Average cloud cover in December: 47
The month with the most cloud cover is January (Cloud cover 49).
The month with the least cloud cover is July (Cloud cover 10).
Average visibility in December
Quincy, 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 month with the lowest visibility is January (4mi).
Quincy, Washington, USA
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