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
With an average high-temperature of 45.5°F (7.5°C) and an average low-temperature of 28.2°F (-2.1°C), January is the coldest month.Humidity
With an average relative humidity of 61%, January is the most humid month in Saint Johns.Rainfall
In Saint Johns, during January, the rain falls for 5.7 days and regularly aggregates up to 0.71" (18mm) of precipitation. In Saint Johns, during the entire year, the rain falls for 67.8 days and collects up to 6.34" (161mm) of precipitation.Snowfall
January through April, November and December are months with snowfall. In Saint Johns, during January, snow falls for 4 days and regularly aggregates up to 2.13" (54mm) of snow. In Saint Johns, during the entire year, snow falls for 14.9 days and aggregates up to 7.87" (200mm) of snow.Daylight
The average length of the day in January is 10h and 10min.On the first day of the month, sunrise is at 7:24 am and sunset at 5:17 pm. On the last day of January, sunrise is at 7:16 am and sunset at 5:45 pm MST.
Sunshine
The average sunshine in January is 7.1h.UV index
The months with the lowest UV index are January, November and December, with an average maximum UV index of 2. A UV Index reading of 2, and below, represents a minimal health hazard from exposure to the Sun's UV rays for the average person.Note: In January, a daily UV index of 2 turns into the following recommendations:
Unlike children, who always need sun protection, most individuals can remain in the sun for up to an hour without getting burnt. For skin protection, it's recommended to minimize Sun exposure during its peak hours around midday. Limit sun-induced ocular harm with sunglasses that feature UVA and UVB filtration. Watch out! The Sun's UV radiation can be nearly magnified twofold due to snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the coldest time of year?
What is the usual temperature for Saint Johns in 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?
What time are sunrise and sunset in January?
How long on average sun shines in January?
What are the months with the lowest UV index?
How high is the UV index in January in Saint Johns?
Average temperature in January
Saint Johns, AZ
- Average high temperature in January: 45.5°F
The warmest months (with the highest average high temperature) are June and July (86.5°F).
The month with the lowest average high temperature is January (45.5°F).
- Average low temperature in January: 28.2°F
The month with the highest average low temperature is July (66.6°F).
The coldest month (with the lowest average low temperature) is January (28.2°F).
Average pressure in January
Saint Johns, AZ
- Average pressure in January: 30.16"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.88"Hg).
Average wind speed in January
Saint Johns, AZ
- Average wind speed in January: 6.2mph
The windiest month (with the highest average wind speed) is April (10.8mph).
The calmest month (with the lowest average wind speed) is January (6.2mph).
Average humidity in January
Saint Johns, AZ
- Average humidity in January: 61%
The month with the highest relative humidity is January (61%).
The month with the lowest relative humidity is June (21%).
Average rainfall in January
Saint Johns, AZ
- Average rainfall in January: 0.71"
The wettest month (with the highest rainfall) is July (0.83").
The driest months (with the least rainfall) are May and June (0.28").
Average rainfall days in January
Saint Johns, AZ
- Average rainfall days in January: 5.7 days
The month with the highest number of rainy days is July (10.2 days).
The month with the least rainy days is November (2.9 days).
Average snowfall in January
Saint Johns, AZ
- Average snowfall in January: 2.13"
The month with the highest snowfall is February (2.44").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in January
Saint Johns, AZ
- Average snowfall days in January: 4 days
The month with the highest number of snowfall days is December (4.5 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight in January /
Average sunshine in January
Saint Johns, AZ
- Average daylight in January: 10h and 1min
The month with the longest days is June (Average daylight: 14h and 24min).
The month with the shortest days is December (Average daylight: 9h and 54min).
- Average sunshine in January: 7h and 1min
The month with the most sunshine is August (Average sunshine: 12h and 12min).
The month with the least sunshine is December (Average sunshine: 7h and 0min).
Average sunshine days in January
Saint Johns, AZ
- Average sunshine days in January: 23.1 days
The month with the most sunshine days is June (25.8 days).
The month with the least sunshine days is July (17.4 days).
Average UV index in January
Saint Johns, AZ
- Average UV index in January: 2
The month with the highest UV index is June (UV index 7).
The months with the lowest UV index are January, November and December (UV index 2).
Average cloud cover in January
Saint Johns, AZ
- Average cloud cover in January: 20
The month with the most cloud cover is December (Cloud cover 21).
The month with the least cloud cover is June (Cloud cover 9).
Average visibility in January
Saint Johns, 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).
Saint Johns, Arizona, USA
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