January weather forecastCasa Grande, AZ
January
Weather in January
The weather in Casa Grande, Arizona starts the year with milder temperatures and an increased relative humidity, laying a stark contrast to the arid climate it is typically known for. The arrival of January signals not only the new year but also a season of relative coolness, providing residents with a time of reprieve from the usual summer heat. Winds blow at an average speed of 4.9mph (7.9km/h), providing a gentle breeze to accompany the chillier days. The highest amount of daylight is 10.3 hours, and the lowest temperature recorded is 46.4°F (8°C) compared to the seasonal high of 63.9°F (17.7°C). Moving into February, residents can expect a slight increase in temperatures and a decrease in humidity levels.Temperature
Casa Grande's January reports an average high-temperature of a still comfortable 63.9°F (17.7°C), exhibiting a minor difference from December. An average temperature of 46.4°F (8°C) is recorded during the nights in January.Humidity
In Casa Grande, the average relative humidity in January is 44%.Rainfall
In Casa Grande, during January, the rain falls for 4.3 days and regularly aggregates up to 0.63" (16mm) of precipitation. Throughout the year, there are 59.1 rainfall days, and 7.36" (187mm) of precipitation is accumulated.Daylight
In January, the average length of the day is 10h and 17min.On the first day of the month, sunrise is at 7:29 am and sunset at 5:31 pm. On the last day of January, sunrise is at 7:22 am and sunset at 5:58 pm MST.
Sunshine
In Casa Grande, the average sunshine in January is 7h.UV index
The average daily maximum UV index in January is 4. A UV Index value of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV rays for the average person.Note: A daily high UV index of 4 in January leads to these guidelines:
Take precautions - Protection against sunburn is recommended. Limiting sun exposure during midday hours helps in reducing the harmful effects of UV radiation. For optimum UV protection, wear sun-resistant attire complemented with a hat and quality shades.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in January
Casa Grande, AZ
- Average high temperature in January: 63.9°F
The warmest month (with the highest average high temperature) is July (102°F).
The month with the lowest average high temperature is December (62.6°F).
- Average low temperature in January: 46.4°F
The month with the highest average low temperature is August (82.9°F).
The coldest month (with the lowest average low temperature) is January (46.4°F).
Average pressure in January
Casa Grande, AZ
- Average pressure in January: 30.08"Hg
The month with the highest atmospheric pressure is January (30.08"Hg).
The month with the lowest atmospheric pressure is June (29.81"Hg).
Average wind speed in January
Casa Grande, AZ
- Average wind speed in January: 4.9mph
The windiest months (with the highest average wind speed) are April and May (7.1mph).
The calmest months (with the lowest average wind speed) are January and December (4.9mph).
Average humidity in January
Casa Grande, AZ
- Average humidity in January: 44%
The month with the highest relative humidity is December (45%).
The month with the lowest relative humidity is June (16%).
Average rainfall in January
Casa Grande, AZ
- Average rainfall in January: 0.63"
The wettest month (with the highest rainfall) is July (1.02").
The driest month (with the least rainfall) is June (0.12").
Average rainfall days in January
Casa Grande, AZ
- Average rainfall days in January: 4.3 days
The month with the highest number of rainy days is July (10.7 days).
The month with the least rainy days is June (1.8 days).
Average daylight in January /
Average sunshine in January
Casa Grande, AZ
- Average daylight in January: 10h and 18min
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 0min
The month with the most sunshine is June (Average sunshine: 12h and 12min).
The month with the least sunshine is December (Average sunshine: 6h and 54min).
Average sunshine days in January
Casa Grande, AZ
- Average sunshine days in January: 26.1 days
The month with the most sunshine days is May (28.4 days).
The month with the least sunshine days is July (15.4 days).
Average UV index in January
Casa Grande, AZ
- Average UV index in January: 4
The months with the highest UV index are June, July and August (UV index 8).
The month with the lowest UV index is December (UV index 3).
Average cloud cover in January
Casa Grande, 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 6).
Average visibility in January
Casa Grande, 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).
