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
January in Sierra Vista observes an average high-temperature of a still moderate 57.4°F (14.1°C), marking an insignificant difference from December's 56.5°F (13.6°C). The average low-temperature during January nights is an icy 37.8°F (3.2°C).Humidity
In January, the average relative humidity is 45%.Rainfall
In January, the rain falls for 4.8 days. Throughout January, 0.55" (14mm) of precipitation is accumulated. In Sierra Vista, during the entire year, the rain falls for 92.2 days and collects up to 15.47" (393mm) of precipitation.Snowfall
Months with snowfall are January through March and December. In Sierra Vista, in January, snow falls for 0.8 days, with typically accumulated 0.47" (12mm) of snow. Throughout the year, there are 3 snowfall days, and 3.27" (83mm) of snow is accumulated.Daylight
In Sierra Vista, the average length of the day in January is 10h and 22min.On the first day of January, sunrise is at 7:20 am and sunset at 5:28 pm. On the last day of the month, sunrise is at 7:14 am and sunset at 5:54 pm MST.
Sunshine
The average sunshine in January is 7.1h.UV index
January, February, November and December, with an average maximum UV index of 3, are months with the lowest UV index. A UV Index reading of 3 to 5 represents a medium health hazard from exposure to the Sun's UV radiation for the average person.Note: The UV index of 3 in January translates into these instructions:
Take care. Persons with lighter skin might suffer burns in less than 30 minutes. The intensity of the Sun's UV radiation during midday suggests reducing time spent outdoors. Limit sun-induced ocular harm with sunglasses that feature UVA and UVB filtration. Mind this! Nearly twice the UV radiation from the Sun can be reflected by the snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the average January temperature?
What is the average humidity in January?
How much 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?
How many hours of sunshine does Sierra Vista have in January?
What is the month with the lowest UV index?
How high is the UV index in January?
Average temperature in January
Sierra Vista, AZ
- Average high temperature in January: 57.4°F
The warmest month (with the highest average high temperature) is June (90.1°F).
The month with the lowest average high temperature is December (56.5°F).
- Average low temperature in January: 37.8°F
The month with the highest average low temperature is July (69.6°F).
The coldest months (with the lowest average low temperature) are January and December (37.8°F).
Average pressure in January
Sierra Vista, AZ
- Average pressure in January: 30.07"Hg
The month with the highest atmospheric pressure is January (30.07"Hg).
The month with the lowest atmospheric pressure is June (29.84"Hg).
Average wind speed in January
Sierra Vista, AZ
- Average wind speed in January: 6.3mph
The windiest month (with the highest average wind speed) is April (9.8mph).
The calmest month (with the lowest average wind speed) is August (5.5mph).
Average humidity in January
Sierra Vista, AZ
- Average humidity in January: 45%
The month with the highest relative humidity is September (50%).
The months with the lowest relative humidity are May and June (23%).
Average rainfall in January
Sierra Vista, AZ
- Average rainfall in January: 0.55"
The wettest month (with the highest rainfall) is July (4.53").
The driest month (with the least rainfall) is May (0.12").
Average rainfall days in January
Sierra Vista, AZ
- Average rainfall days in January: 4.8 days
The month with the highest number of rainy days is July (21.3 days).
The month with the least rainy days is May (2.3 days).
Average snowfall in January
Sierra Vista, AZ
- Average snowfall in January: 0.47"
The month with the highest snowfall is February (1.46").
The months with the least snowfall are April, May, June, July, August, September, October and November (0").
Average snowfall days in January
Sierra Vista, AZ
- Average snowfall days in January: 0.8 days
The month with the highest number of snowfall days is December (1.3 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).
Average daylight in January /
Average sunshine in January
Sierra Vista, AZ
- Average daylight in January: 10h and 2min
The month with the longest days is June (Average daylight: 14h and 12min).
The month with the shortest days is December (Average daylight: 10h and 6min).
- Average sunshine in January: 7h and 1min
The months with the most sunshine are June and August (Average sunshine: 12h and 0min).
The month with the least sunshine is December (Average sunshine: 6h and 54min).
Average sunshine days in January
Sierra Vista, AZ
- Average sunshine days in January: 25 days
The month with the most sunshine days is May (28.1 days).
The month with the least sunshine days is July (6.5 days).
Average UV index in January
Sierra Vista, AZ
- Average UV index in January: 3
The month with the highest UV index is June (UV index 7).
The months with the lowest UV index are January, February, November and December (UV index 3).
Average cloud cover in January
Sierra Vista, AZ
- Average cloud cover in January: 18
The month with the most cloud cover is July (Cloud cover 24).
The month with the least cloud cover is May (Cloud cover 8).
Average visibility in January
Sierra Vista, AZ
- Average visibility in January: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
Sierra Vista, Arizona, USA
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