Contents
- Weather in January
- Frequently asked questions
- Average temperature in January
- Average pressure in January
- Average wind speed in January
- Average humidity in January
- Average rainfall in January
- Average rainfall days in January
- Average snowfall in January
- Average snowfall days in January
- Average daylight in January
- Average sunshine in January
- Average sunshine days in January
- Average UV index in January
- Average cloud cover in January
- Average visibility in January
Weather in January
Temperature
In Fort Defiance, January is the coldest month, with temperatures averaging a high of 37.8°F (3.2°C) and a low of 21.6°F (-5.8°C).Humidity
The most humid month is January, with an average relative humidity of 71%.Rainfall
In January, in Fort Defiance, the rain falls for 3.7 days. Throughout January, 0.91" (23mm) of precipitation is accumulated. In Fort Defiance, during the entire year, the rain falls for 91.1 days and collects up to 12.72" (323mm) of precipitation.Snowfall
January through May, October through December are months with snowfall. In Fort Defiance, in January, snow falls for 8.7 days, with typically accumulated 5.51" (140mm) of snow. In Fort Defiance, during the entire year, snow falls for 37.7 days and aggregates up to 22.44" (570mm) of snow.Daylight
The average length of the day in January is 10h and 4min.On the first day of January in Fort Defiance, sunrise is at 7:26 am and sunset at 5:13 pm. On the last day of the month, sunrise is at 7:17 am and sunset at 5:42 pm MST.
Sunshine
January and December, with an average of 6.4h of sunshine, are months with the least 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 estimate of 2, and below, represents a minimal health hazard from exposure to the Sun's UV radiation for average individuals.Note: The maximum daily UV index of 2 during January translates into the following directions:
Babies, children, and individuals with sensitive skin should always have protection against extended sun exposure. During midday, the Sun's radiation is strongest, and it's advisable to reduce direct exposure. Select sunglasses that boast both UVA and UVB protection to limit the adverse effects of the sun on the eyes. Be mindful! The reflection from snow can increase the Sun's UV radiation nearly twice.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What month is the coldest?
How cold is January?
What is the most humid month?
What is the average humidity in January?
How many days does it rain in January?
How much does it snow in January?
What is the average length of the day in January?
When are sunrise and sunset in January in Fort Defiance?
What are the months with the least sunshine?
How many hours of sunshine does Fort Defiance have in January?
When is the lowest UV index?
How high is the UV index in January?
Average temperature in January
Fort Defiance, AZ
- Average high temperature in January: 37.8°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 January: 21.6°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 January
Fort Defiance, AZ
- Average pressure in January: 30.19"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 January
Fort Defiance, AZ
- Average wind speed in January: 6.8mph
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 January
Fort Defiance, AZ
- Average humidity in January: 71%
The month with the highest relative humidity is January (71%).
The month with the lowest relative humidity is June (24%).
Average rainfall in January
Fort Defiance, AZ
- Average rainfall in January: 0.91"
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 January
Fort Defiance, AZ
- Average rainfall days in January: 3.7 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 January
Fort Defiance, AZ
- Average snowfall in January: 5.51"
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 January
Fort Defiance, AZ
- Average snowfall days in January: 8.7 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 January /
Average sunshine in January
Fort Defiance, AZ
- Average daylight in January: 10h and 1min
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 January: 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 January
Fort Defiance, AZ
- Average sunshine days in January: 20.7 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 January
Fort Defiance, AZ
- Average UV index in January: 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 January
Fort Defiance, AZ
- Average cloud cover in January: 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 January
Fort Defiance, AZ
- Average visibility in January: 5mi
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
Weather forecast for your location
2. Allow the app to use your location