March weather forecastFontana, CA
March
Weather in March
The first month of the spring, March, is still a comfortable month in Fontana, California, with an average temperature varying between 66.7°F (19.3°C) and 46°F (7.8°C).Temperature
The advent of March brings an average high-temperature of a still comfortable 66.7°F (19.3°C), almost identical to the preceding month. Throughout March, Fontana's nights cool down to an average of 46°F (7.8°C).Humidity
The months with the highest humidity are February, March and May, with an average relative humidity of 52%.Rainfall
In Fontana, in March, during 7.5 rainfall days, 0.75" (19mm) of precipitation is typically accumulated. In Fontana, during the entire year, the rain falls for 48.1 days and collects up to 6.89" (175mm) of precipitation.Snowfall
January, March through December are months without snowfall.Daylight
In March, the average length of the day is 12h and 0min.On the first day of March, sunrise is at 6:17 am and sunset at 5:46 pm PST. On the last day of the month, sunrise is at 6:37 am and sunset at 7:10 pm PDT.
Note: On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts, and the time zone changes from PST to PDT. Daylight Saving Time lasts until Sunday, November 3. 2024, at 2:00 am; consequently, the time zone reverts from PDT to PST.
Sunshine
In March, the average sunshine in Fontana is 8.9h.UV index
In March, the average daily maximum UV index is 5. A UV Index value of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV radiation for the average person.Note: A maximum high UV index of 5 in March translates into the following recommendations:
Undertake precautions - Obligation exists to protect against skin and eye damage. UV radiation from the Sun is most dangerous during midday; take precautions and seek shade. Sun protection is enhanced with clothing that boasts a tight weave yet offers a loose fit.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in March
Fontana, CA
- Average high temperature in March: 66.7°F
The warmest month (with the highest average high temperature) is August (92.1°F).
The month with the lowest average high temperature is December (60.8°F).
- Average low temperature in March: 46°F
The month with the highest average low temperature is August (67.3°F).
The coldest months (with the lowest average low temperature) are February and December (44.2°F).
Average pressure in March
Fontana, CA
- Average pressure in March: 30.01"Hg
The month with the highest atmospheric pressure is January (30.1"Hg).
The month with the lowest atmospheric pressure is June (29.85"Hg).
Average wind speed in March
Fontana, CA
- Average wind speed in March: 5.4mph
The windiest months (with the highest average wind speed) are April and May (6mph).
The calmest month (with the lowest average wind speed) is September (4.5mph).
Average humidity in March
Fontana, CA
- Average humidity in March: 52%
The months with the highest relative humidity are February, March and May (52%).
The month with the lowest relative humidity is August (39%).
Average rainfall in March
Fontana, CA
- Average rainfall in March: 0.75"
The wettest month (with the highest rainfall) is February (1.57").
The driest month (with the least rainfall) is June (0.04").
Average rainfall days in March
Fontana, CA
- Average rainfall days in March: 7.5 days
The month with the highest number of rainy days is March (7.5 days).
The month with the least rainy days is June (1.2 days).
Average snowfall days in March
Fontana, CA
- Average snowfall days in March: 0 days
The month with the highest number of snowfall days is February (0.1 days).
The months with the least snowfall days are January, March, April, May, June, July, August, September, October, November and December (0 days).
Average daylight in March /
Average sunshine in March
Fontana, CA
- Average daylight in March: 12h and 0min
The month with the longest days is June (Average daylight: 14h and 24min).
The month with the shortest days is December (Average daylight: 9h and 54min).
- Average sunshine in March: 8h and 54min
The months with the most sunshine are June, July and August (Average sunshine: 12h and 6min).
The month with the least sunshine is December (Average sunshine: 6h and 54min).
Average sunshine days in March
Fontana, CA
- Average sunshine days in March: 23.5 days
The month with the most sunshine days is June (28.3 days).
The month with the least sunshine days is February (21.1 days).
Average UV index in March
Fontana, CA
- Average UV index in March: 5
The months with the highest UV index are July and August (UV index 7).
The month with the lowest UV index is December (UV index 3).
Average cloud cover in March
Fontana, CA
- Average cloud cover in March: 21
The months with the most cloud cover are February, March and December (Cloud cover 21).
The month with the least cloud cover is August (Cloud cover 4).
Average visibility in March
Fontana, CA
- Average visibility in March: 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).
