January weather forecastTempe, AZ
January
Weather in January
January is considered the coldest month in Tempe, Arizona, with temperatures ranging from 46.9°F (8.3°C) to 64°F (17.8°C). However, the city still receives more than 7.1 hours of sunlight, allowing for comfortable outdoor activities. Wind speeds are moderate, and the pressure is relatively high, making this a calm period. The climate remains dry despite being the second-highest month in terms of relative humidity. With a mere 0.59" (15mm) of rainfall over just 4.3 days on average, January embodies a mild winter season.Temperature
January ushers in an average high-temperature of a still refreshing 64°F (17.8°C), aligning closely with the preceding month. In Tempe, an average temperature of 46.9°F (8.3°C) is noted during January nights.Humidity
In Tempe, the average relative humidity in January is 43%.Rainfall
In Tempe, in January, during 4.3 rainfall days, 0.59" (15mm) of precipitation is typically accumulated. Throughout the year, in Tempe, Arizona, there are 57.7 rainfall days, and 7.72" (196mm) of precipitation is accumulated.Daylight
In Tempe, the average length of the day in January is 10h and 14min.On the first day of January, sunrise is at 7:31 am and sunset at 5:30 pm. On the last day of the month, sunrise is at 7:24 am and sunset at 5:57 pm MST.
Sunshine
The average sunshine in January in Tempe, Arizona, is 7.1h.UV index
The average daily maximum UV index in January in Tempe is 4. A UV Index estimate of 3 to 5 represents a moderate health risk from exposure to the Sun's UV rays for ordinary individuals.Note: In January, the maximum UV index of 4 suggests this advice:
Guard yourself - Precautionary measures against sun damage are advocated. For skin protection, it's recommended to minimize Sun exposure during its peak hours around midday. Select sunglasses that boast both UVA and UVB protection to limit the adverse effects of the sun on the eyes.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in January
Tempe, AZ
- Average high temperature in January: 64°F
The warmest month (with the highest average high temperature) is July (102.6°F).
The month with the lowest average high temperature is December (62.8°F).
- Average low temperature in January: 46.9°F
The month with the highest average low temperature is August (84.4°F).
The coldest month (with the lowest average low temperature) is January (46.9°F).
Average pressure in January
Tempe, AZ
- Average pressure in January: 30.09"Hg
The month with the highest atmospheric pressure is January (30.09"Hg).
The month with the lowest atmospheric pressure is June (29.81"Hg).
Average wind speed in January
Tempe, AZ
- Average wind speed in January: 4.6mph
The windiest months (with the highest average wind speed) are April and May (6.3mph).
The calmest month (with the lowest average wind speed) is December (4.4mph).
Average humidity in January
Tempe, AZ
- Average humidity in January: 43%
The month with the highest relative humidity is December (44%).
The month with the lowest relative humidity is June (16%).
Average rainfall in January
Tempe, AZ
- Average rainfall in January: 0.59"
The wettest month (with the highest rainfall) is July (1.14").
The driest month (with the least rainfall) is June (0.08").
Average rainfall days in January
Tempe, AZ
- Average rainfall days in January: 4.3 days
The month with the highest number of rainy days is July (10.2 days).
The month with the least rainy days is June (1 days).
Average daylight in January /
Average sunshine in January
Tempe, AZ
- Average daylight in January: 10h and 12min
The month with the longest days is June (Average daylight: 14h and 18min).
The month with the shortest days is December (Average daylight: 10h and 0min).
- Average sunshine in January: 7h and 6min
The months with the most sunshine are June and August (Average sunshine: 12h and 6min).
The month with the least sunshine is December (Average sunshine: 6h and 48min).
Average sunshine days in January
Tempe, AZ
- Average sunshine days in January: 26 days
The month with the most sunshine days is May (28.7 days).
The month with the least sunshine days is July (16.8 days).
Average UV index in January
Tempe, AZ
- Average UV index in January: 4
The months with the highest UV index are May, June, July and August (UV index 8).
The month with the lowest UV index is December (UV index 3).
Average cloud cover in January
Tempe, AZ
- Average cloud cover in January: 18
The month with the most cloud cover is December (Cloud cover 21).
The month with the least cloud cover is June (Cloud cover 5).
Average visibility in January
Tempe, 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).
