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 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
Upon the beginning of January, Santa Rosa's high-temperatures register at a still refreshing 63.9°F (17.7°C), closely mirroring the preceding month. An average low-temperature of 45.7°F (7.6°C) is noted during the month of January.Humidity
The average relative humidity in January is 40%.Rainfall
In Santa Rosa, in January, during 3.8 rainfall days, 0.43" (11mm) of precipitation is typically accumulated. In Santa Rosa, during the entire year, the rain falls for 52.9 days and collects up to 6.46" (164mm) of precipitation.Daylight
The average length of the day in January in Santa Rosa is 10h and 19min.On the first day of the month, sunrise is at 7:29 am and sunset at 5:33 pm. On the last day of January, sunrise is at 7:22 am and sunset at 6:00 pm MST.
Sunshine
In January, the average sunshine is 7.1h.UV index
In Santa Rosa, Arizona, the average daily maximum UV index in January is 4. A UV Index of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV rays for the average person.Note: In January, the maximum UV index of 4 suggests these recommendations:
Prioritize safety - The need to safeguard skin and eyes from harm is emphasized. Being in direct Sun during midday can be harmful due to intense solar radiation; take precautions. Safeguard your eyes, ears, and face from sun rays with the aid of a wide-brim hat.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the temperature in January?
What is the average humidity in January?
How much does it rain in Santa Rosa in January?
How many hours of daylight does Santa Rosa have in January?
When are sunrise and sunset in January?
How many hours of sunshine does Santa Rosa have in January?
How high is the UV index in January?
Average temperature in January
Santa Rosa, AZ
- Average high temperature in January: 63.9°F
The warmest month (with the highest average high temperature) is June (97.3°F).
The month with the lowest average high temperature is December (62.4°F).
- Average low temperature in January: 45.7°F
The month with the highest average low temperature is July (78.6°F).
The coldest month (with the lowest average low temperature) is December (45.5°F).
Average pressure in January
Santa Rosa, AZ
- Average pressure in January: 30.06"Hg
The month with the highest atmospheric pressure is January (30.06"Hg).
The month with the lowest atmospheric pressure is June (29.78"Hg).
Average wind speed in January
Santa Rosa, AZ
- Average wind speed in January: 6.3mph
The windiest month (with the highest average wind speed) is May (9.3mph).
The calmest month (with the lowest average wind speed) is January (6.3mph).
Average humidity in January
Santa Rosa, AZ
- Average humidity in January: 40%
The month with the highest relative humidity is December (44%).
The month with the lowest relative humidity is June (20%).
Average rainfall in January
Santa Rosa, AZ
- Average rainfall in January: 0.43"
The wettest month (with the highest rainfall) is August (1.38").
The driest month (with the least rainfall) is May (0.04").
Average rainfall days in January
Santa Rosa, AZ
- Average rainfall days in January: 3.8 days
The month with the highest number of rainy days is July (11.5 days).
The month with the least rainy days is May (1 days).
Average daylight in January /
Average sunshine in January
Santa Rosa, 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 month with the most sunshine is June (Average sunshine: 12h and 6min).
The month with the least sunshine is December (Average sunshine: 6h and 54min).
Average sunshine days in January
Santa Rosa, AZ
- Average sunshine days in January: 26.8 days
The month with the most sunshine days is May (29.8 days).
The month with the least sunshine days is August (17.2 days).
Average UV index in January
Santa Rosa, AZ
- Average UV index in January: 4
The months with the highest UV index are July and August (UV index 8).
The month with the lowest UV index is December (UV index 3).
Average cloud cover in January
Santa Rosa, AZ
- Average cloud cover in January: 17
The month with the most cloud cover is December (Cloud cover 20).
The month with the least cloud cover is June (Cloud cover 6).
Average visibility in January
Santa Rosa, 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).
Santa Rosa, Arizona, USA
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