Average Weather in January in Fresno California, United States
In Fresno, the month of January is characterized by gradually rising daily high temperatures, with daily highs increasing by 4°F, from 55°F to 60°F over the course of the month, and rarely exceeding 68°F or dropping below 47°F.
Daily low temperatures increase by 2°F, from 39°F to 41°F, rarely falling below 31°F or exceeding 50°F.
For reference, on July 29, the hottest day of the year, temperatures in Fresno typically range from 68°F to 99°F, while on December 30, the coldest day of the year, they range from 39°F to 55°F.
Average High and Low Temperature in January
The figure below shows you a compact characterization of the hourly average temperatures for the quarter of the year centered on January. The horizontal axis is the day, the vertical axis is the hour of the day, and the color is the average temperature for that hour and day.
Average Hourly Temperature in January
The month of January in Fresno experiences essentially constant cloud cover, with the percentage of time that the sky is overcast or mostly cloudy remaining about 46% throughout the month.
The clearest day of the month is January 26, with clear, mostly clear, or partly cloudy conditions 55% of the time.
For reference, on February 21, the cloudiest day of the year, the chance of overcast or mostly cloudy conditions is 50%, while on August 8, the clearest day of the year, the chance of clear, mostly clear, or partly cloudy skies is 92%.
Cloud Cover in January
A wet day is one with at least 0.04 inches of liquid or liquid-equivalent precipitation. In Fresno, the chance of a wet day over the course of January is essentially constant, remaining around 22% throughout.
For reference, the year's highest daily chance of a wet day is 27% on February 20, and its lowest chance is 0% on August 11.
Probability of Precipitation in January
The average sliding 31-day rainfall during January in Fresno is essentially constant, remaining about 2.6 inches throughout, and rarely exceeding 6.2 inches or falling below 0.2 inches.
The highest average 31-day accumulation is 2.7 inches on January 4.
Average Monthly Rainfall in January
Over the course of January in Fresno, the length of the day is increasing. From the start to the end of the month, the length of the day increases by 40 minutes, implying an average daily increase of 1 minute, 20 seconds, and weekly increase of 9 minutes, 20 seconds.
The shortest day of the month is January 1, with 9 hours, 42 minutes of daylight and the longest day is January 31, with 10 hours, 22 minutes of daylight.
Hours of Daylight and Twilight in January
The latest sunrise of the month in Fresno is 7:12 AM on January 5 and the earliest sunrise is 11 minutes earlier at 7:01 AM on January 31.
The earliest sunset is 4:54 PM on January 1 and the latest sunset is 30 minutes later at 5:24 PM on January 31.
Daylight saving time is observed in Fresno during 2017, but it neither starts nor ends during January, so the entire month is in standard time.
For reference, on June 21, the longest day of the year, the Sun rises at 5:40 AM and sets 14 hours, 41 minutes later, at 8:21 PM, while on December 21, the shortest day of the year, it rises at 7:08 AM and sets 9 hours, 39 minutes later, at 4:46 PM.
Sunrise & Sunset with Twilight in January
The chance that a given day will be muggy in Fresno is essentially constant during January, remaining around 0% throughout.
For reference, on July 22, the muggiest day of the year, there are muggy conditions 1% of the time, while on November 3, the least muggy day of the year, there are muggy conditions 0% of the time.
Humidity Comfort Levels in January
The average hourly wind speed in Fresno is essentially constant during January, remaining around 2.4 miles per hour throughout.
For reference, on May 30, the windiest day of the year, the daily average wind speed is 3.8 miles per hour, while on November 12, the calmest day of the year, the daily average wind speed is 2.3 miles per hour.
The lowest daily average wind speed during January is 2.3 miles per hour on January 21.
Average Wind Speed in January
Wind Direction in January
The average daily incident shortwave solar energy in Fresno is gradually increasing during January, rising by 0.6 kWh, from 2.5 kWh to 3.2 kWh, over the course of the month.
Average Daily Incident Shortwave Solar Energy in January
For the purposes of this report, the geographical coordinates of Fresno are 36.748 deg latitude, -119.772 deg longitude, and 299 ft elevation.
The topography within 2 miles of Fresno is essentially flat, with a maximum elevation change of 52 feet and an average elevation above sea level of 299 feet. Within 10 miles is essentially flat (180 feet). Within 50 miles contains only modest variations in elevation (10,449 feet).
The area within 2 miles of Fresno is covered by artificial surfaces (100%), within 10 miles by cropland (58%) and artificial surfaces (38%), and within 50 miles by cropland (53%) and grassland (24%).
This report illustrates the typical weather in Fresno year round, based on a statistical analysis of historical hourly weather reports and model reconstructions from January 1, 1980 to December 31, 2016.
Temperature and Dew Point
There are 4 weather stations near enough to contribute to our estimation of the temperature and dew point in Fresno.
For each station, the records are corrected for the elevation difference between that station and Fresno according to the International Standard Atmosphere , and by the relative change present in the MERRA-2 satellite-era reanalysis between the two locations.
The estimated value at Fresno is computed as the weighted average of the individual contributions from each station, with weights proportional to the inverse of the distance between Fresno and a given station.
The stations contributing to this reconstruction are: Fresno Air Terminal Airport (87%, 6.0 kilometers, northeast); Madera Municipal Airport (5%, 40 kilometers, northwest); Lemoore Naval Air Station (Reeves Field) (3.8%, 49 kilometers, south); and Hanford Municipal Airport (3.7%, 49 kilometers, south).
Time zones for aiports and weather stations are provided by AskGeo.com .