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
Fort Defiance's weather changes with the onset of December, slightly falling from a fresh 50.7°F (10.4°C) in November to a wintry 39.6°F (4.2°C). In Fort Defiance, December's nights observe an average temperature dip to a freezing cold 23.2°F (-4.9°C).Humidity
The average relative humidity in December in Fort Defiance is 66%.Rainfall
In Fort Defiance, in December, it is raining for 3.5 days, with typically 1.06" (27mm) of accumulated precipitation. In Fort Defiance, during the entire year, the rain falls for 91.1 days and collects up to 12.72" (323mm) of precipitation.Snowfall
Months with snowfall in Fort Defiance are January through May, October through December. December is the month with the most snowfall. Snow falls for 9 days and accumulates 6.42" (163mm) of snow.Daylight
December has the shortest days of the year in Fort Defiance, with an average of 9h and 48min of daylight.On the first day of December, sunrise is at 7:08 am and sunset at 5:02 pm. On the last day of the month, sunrise is at 7:26 am and sunset at 5:13 pm MST.
Sunshine
The months with the least sunshine in Fort Defiance, Arizona, are January and December, with an average of 6.4h of sunshine.UV index
January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index value of 2, and less, symbolizes a low health risk from exposure to the Sun's UV rays for the average person.Note: In December, the maximum UV index of 2 suggests this advice:
Though the majority can handle prolonged sun exposure, it is crucial to always shield babies, children, and those with fair skin. The Sun is at its harshest during midday; protect yourself by staying in shaded areas and minimizing exposure. Protect your eyes, ears, face, and neck from the Sun by wearing a wide-brimmed hat. Beware! The strength of the UV rays is increased nearly double-fold by the reflection of the snow.
Frequently asked questions
How cold does it get in Fort Defiance in December?
What is the average humidity in December in Fort Defiance?
How many days does it rain in December in Fort Defiance?
What is the snowiest month in Fort Defiance?
How many days does it snow in December in Fort Defiance?
What is the month with the shortest days in Fort Defiance?
What is the average length of the day in December in Fort Defiance?
When are sunrise and sunset in December in Fort Defiance?
What is the month with the least sunshine in Fort Defiance?
How many hours of sunshine does Fort Defiance have in December?
What is the month with the lowest UV index in Fort Defiance?
How high is the UV index in December in Fort Defiance?
Average temperature in December
Fort Defiance, AZ
- Average high temperature in December: 39.6°F
The warmest month (with the highest average high temperature) is July (81.7°F).
The month with the lowest average high temperature is January (37.8°F).
- Average low temperature in December: 23.2°F
The month with the highest average low temperature is July (61.7°F).
The coldest month (with the lowest average low temperature) is January (21.6°F).
Average pressure in December
Fort Defiance, AZ
- Average pressure in December: 30.13"Hg
The month with the highest atmospheric pressure is January (30.19"Hg).
The month with the lowest atmospheric pressure is June (29.87"Hg).
Average wind speed in December
Fort Defiance, AZ
- Average wind speed in December: 7.5mph
The windiest month (with the highest average wind speed) is April (11.4mph).
The calmest month (with the lowest average wind speed) is August (6.6mph).
Average humidity in December
Fort Defiance, AZ
- Average humidity in December: 66%
The month with the highest relative humidity is January (71%).
The month with the lowest relative humidity is June (24%).
Average rainfall in December
Fort Defiance, AZ
- Average rainfall in December: 1.06"
The wettest month (with the highest rainfall) is July (2.76").
The driest month (with the least rainfall) is June (0.39").
Average rainfall days in December
Fort Defiance, AZ
- Average rainfall days in December: 3.5 days
The month with the highest number of rainy days is July (19.7 days).
The month with the least rainy days is November (3.1 days).
Average snowfall in December
Fort Defiance, AZ
- Average snowfall in December: 6.42"
The month with the highest snowfall is December (6.42").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Fort Defiance, AZ
- Average snowfall days in December: 9 days
The month with the highest number of snowfall days is December (9 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Fort Defiance, AZ
- Average daylight in December: 9h and 5min
The month with the longest days is June (Average daylight: 14h and 30min).
The month with the shortest days is December (Average daylight: 9h and 48min).
- Average sunshine in December: 6h and 2min
The month with the most sunshine is June (Average sunshine: 11h and 48min).
The months with the least sunshine are January and December (Average sunshine: 6h and 24min).
Average sunshine days in December
Fort Defiance, AZ
- Average sunshine days in December: 19.7 days
The month with the most sunshine days is November (23.5 days).
The month with the least sunshine days is July (8.7 days).
Average UV index in December
Fort Defiance, AZ
- Average UV index in December: 2
The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in December
Fort Defiance, AZ
- Average cloud cover in December: 29
The months with the most cloud cover are January and December (Cloud cover 29).
The month with the least cloud cover is June (Cloud cover 10).
Average visibility in December
Fort Defiance, AZ
- 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).
Fort Defiance, Arizona, USA
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