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
Welcoming January, Modesto notes an average high-temperature of a still moderate 57.7°F (14.3°C), nearly consistent with December's 55.6°F (13.1°C). Throughout January, Modesto records an average temperature of 41.9°F (5.5°C) at night.Humidity
With an average relative humidity of 72%, January is the most humid month.Rainfall
In Modesto, during January, the rain falls for 5.9 days and regularly aggregates up to 0.75" (19mm) of precipitation. In Modesto, during the entire year, the rain falls for 54.3 days and collects up to 6.54" (166mm) of precipitation.Daylight
In Modesto, California, the average length of the day in January is 9h and 55min.On the first day of the month, sunrise is at 7:18 am and sunset at 4:56 pm. On the last day of January, sunrise is at 7:08 am and sunset at 5:26 pm PST.
Sunshine
In January, the average sunshine is 6.3h.UV index
The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 3. A UV Index estimate of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV rays for the average person.Note: In January, the maximum UV index of 3 transforms into these recommendations:
Guard yourself - Precautionary measures against sun damage are advocated. Stay safe from the Sun's strongest UV rays by limiting exposure during midday. Fend off the sun's harsh rays with appropriate clothing, a wide-brim hat, and UV-protective sunglasses.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the usual temperature for Modesto in January?
What is the most humid month in Modesto?
What is the average humidity in January in Modesto?
How many days does it rain in January in Modesto?
How many hours of daylight does Modesto have in January?
When are sunrise and sunset in January in Modesto?
How long on average sun shines in January in Modesto?
What are the months with the lowest UV index in Modesto?
How high is the UV index in January in Modesto?
Average temperature in January
Modesto, CA
- Average high temperature in January: 57.7°F
The warmest month (with the highest average high temperature) is July (97.7°F).
The month with the lowest average high temperature is December (55.6°F).
- Average low temperature in January: 41.9°F
The month with the highest average low temperature is July (62.1°F).
The coldest months (with the lowest average low temperature) are January and December (41.9°F).
Average pressure in January
Modesto, CA
- Average pressure in January: 30.15"Hg
The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in January
Modesto, CA
- Average wind speed in January: 5.3mph
The windiest month (with the highest average wind speed) is June (7.3mph).
The calmest month (with the lowest average wind speed) is November (5.2mph).
Average humidity in January
Modesto, CA
- Average humidity in January: 72%
The month with the highest relative humidity is January (72%).
The month with the lowest relative humidity is July (37%).
Average rainfall in January
Modesto, CA
- Average rainfall in January: 0.75"
The wettest month (with the highest rainfall) is March (1.3").
The driest months (with the least rainfall) are July and August (0.04").
Average rainfall days in January
Modesto, CA
- Average rainfall days in January: 5.9 days
The month with the highest number of rainy days is March (10.3 days).
The month with the least rainy days is August (0.9 days).
Average daylight in January /
Average sunshine in January
Modesto, CA
- Average daylight in January: 9h and 5min
The month with the longest days is June (Average daylight: 14h and 42min).
The month with the shortest days is December (Average daylight: 9h and 36min).
- Average sunshine in January: 6h and 2min
The month with the most sunshine is July (Average sunshine: 12h and 6min).
The month with the least sunshine is December (Average sunshine: 6h and 0min).
Average sunshine days in January
Modesto, CA
- Average sunshine days in January: 24.1 days
The month with the most sunshine days is August (29.2 days).
The month with the least sunshine days is March (19.6 days).
Average UV index in January
Modesto, CA
- Average UV index in January: 3
The months with the highest UV index are June, July and August (UV index 7).
The months with the lowest UV index are January, February, November and December (UV index 3).
Average cloud cover in January
Modesto, CA
- Average cloud cover in January: 30
The month with the most cloud cover is March (Cloud cover 33).
The month with the least cloud cover is July (Cloud cover 4).
Average visibility in January
Modesto, CA
- 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).
Modesto, California, USA
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