Average Weather in February in Fontana California, United States
Daily high temperatures increase by 2°F, from 67°F to 69°F, rarely falling below 56°F or exceeding 81°F.
Daily low temperatures increase by 2°F, from 44°F to 46°F, rarely falling below 36°F or exceeding 53°F.
For reference, on August 19, the hottest day of the year, temperatures in Fontana typically range from 65°F to 95°F, while on December 25, the coldest day of the year, they range from 43°F to 65°F.
Average High and Low Temperature in February
The figure below shows you a compact characterization of the hourly average temperatures for the quarter of the year centered on February. 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 February
The month of February in Fontana experiences essentially constant cloud cover, with the percentage of time that the sky is overcast or mostly cloudy remaining about 43% throughout the month. The highest chance of overcast or mostly cloudy conditions is 45% on February 20.
The clearest day of the month is February 1, with clear, mostly clear, or partly cloudy conditions 59% of the time.
For reference, on February 20, the cloudiest day of the year, the chance of overcast or mostly cloudy conditions is 45%, while on September 7, the clearest day of the year, the chance of clear, mostly clear, or partly cloudy skies is 90%.
Cloud Cover Categories in February
A wet day is one with at least 0.04 inches of liquid or liquid-equivalent precipitation. In Fontana, the chance of a wet day over the course of February is gradually increasing, starting the month at 16% and ending it at 18%.
For reference, the year's highest daily chance of a wet day is 19% on February 20, and its lowest chance is 1% on June 20.
Probability of Precipitation in February
The average sliding 31-day rainfall during February in Fontana is essentially constant, remaining about 2.5 inches throughout, and rarely exceeding 6.1 inches or falling below 0.1 inches.
The highest average 31-day accumulation is 2.6 inches on February 19.
Average Monthly Rainfall in February
Over the course of February in Fontana, the length of the day is increasing. From the start to the end of the month, the length of the day increases by 52 minutes, implying an average daily increase of 1 minute, 56 seconds, and weekly increase of 13 minutes, 32 seconds.
The shortest day of the month is February 1, with 10 hours, 33 minutes of daylight and the longest day is February 28, with 11 hours, 26 minutes of daylight.
Hours of Daylight and Twilight in February
The latest sunrise of the month in Fontana is 6:46 AM on February 1 and the earliest sunrise is 27 minutes earlier at 6:19 AM on February 28.
The earliest sunset is 5:20 PM on February 1 and the latest sunset is 25 minutes later at 5:45 PM on February 28.
Daylight saving time is observed in Fontana during 2018, but it neither starts nor ends during February, so the entire month is in standard time.
For reference, on June 21, the longest day of the year, the Sun rises at 5:38 AM and sets 14 hours, 26 minutes later, at 8:04 PM, while on December 21, the shortest day of the year, it rises at 6:51 AM and sets 9 hours, 53 minutes later, at 4:44 PM.
Sunrise & Sunset with Twilight and Daylight Saving Time in February
The chance that a given day will be muggy in Fontana is essentially constant during February, remaining around 0% throughout.
For reference, on August 11, the muggiest day of the year, there are muggy conditions 4% of the time, while on January 1, the least muggy day of the year, there are muggy conditions 0% of the time.
Humidity Comfort Levels in February
The average hourly wind speed in Fontana is essentially constant during February, remaining within 0.1 miles per hour of 6.9 miles per hour throughout.
For reference, on December 31, the windiest day of the year, the daily average wind speed is 7.4 miles per hour, while on September 8, the calmest day of the year, the daily average wind speed is 5.2 miles per hour.
Average Wind Speed in February
Wind Direction in February
Fontana is located near a large body of water (e.g., ocean, sea, or large lake). This section reports on the wide-area average surface temperature of that water.
The average surface water temperature in Fontana is essentially constant during February, remaining around 59°F throughout.
The lowest average surface water temperature during February is 59°F on February 7.
Average Water Temperature in February
While it does not do so every year, freezing temperatures are seen in Fontana over some winters. The day least likely to be in the growing season is January 6, with a 65% chance.
Time Spent in Various Temperature Bands and the Growing Season in February
The average accumulated growing degree days in Fontana are gradually increasing during February, increasing by 173°F, from 175°F to 348°F, over the course of the month.
Growing Degree Days in February
The average daily incident shortwave solar energy in Fontana is increasing during February, rising by 1.1 kWh, from 3.8 kWh to 4.8 kWh, over the course of the month.
Average Daily Incident Shortwave Solar Energy in February
For the purposes of this report, the geographical coordinates of Fontana are 34.092 deg latitude, -117.435 deg longitude, and 1,211 ft elevation.
The topography within 2 miles of Fontana contains only modest variations in elevation, with a maximum elevation change of 305 feet and an average elevation above sea level of 1,224 feet. Within 10 miles contains only modest variations in elevation (5,577 feet). Within 50 miles also contains extreme variations in elevation (11,457 feet).
The area within 2 miles of Fontana is covered by artificial surfaces (73%) and shrubs (27%), within 10 miles by shrubs (63%) and artificial surfaces (33%), and within 50 miles by shrubs (64%) and artificial surfaces (18%).
This report illustrates the typical weather in Fontana 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 Fontana.
For each station, the records are corrected for the elevation difference between that station and Fontana 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 Fontana is computed as the weighted average of the individual contributions from each station, with weights proportional to the inverse of the distance between Fontana and a given station.
The stations contributing to this reconstruction are: Riverside Municipal Airport (31%, 16 kilometers, south); San Bernardino International Airport (35%, 18 kilometers, east); Ontario International Airport (29%, 20 kilometers, west); and Southern California Logistics Airport (4.3%, 55 kilometers, north).
Time zones for aiports and weather stations are provided by AskGeo.com .