July weather forecastNorth Fontana, CA
July
Weather in July
July in North Fontana, California, is a hot summer month, with an average temperature varying between 65.8°F (18.8°C) and 91°F (32.8°C).Temperature
The shift into July is accompanied by a modest temperature increase, with the average high-temperature edging up from a warm 85.3°F (29.6°C) in June to a tropical 91°F (32.8°C). During the nights in July, North Fontana records a pronounced shift from the daytime warmth, with a consistent average temperature of 65.8°F (18.8°C).Heat index
Throughout July, the heat index is calculated to be a hot 93.2°F (34°C). Exercise increased caution, heat cramps and heat exhaustion are potential hazards. Continuous activity could lead to heatstroke.It is essential to grasp that the heat index's numbers are for shade and light wind settings. The heat index may experience an enhancement of 15 Fahrenheit (8 Celsius) degrees under direct sunlight.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', unifies temperature and humidity readings to offer a comprehensive feel of warmth. One's perception of weather can be shaped by other factors, involving metabolic differences, pregnancy, and physical exertion. Consider that direct sun exposure can intensify the felt heat, adding potentially 15 Fahrenheit (8 Celsius) degrees to the heat index. Heat index values are highly critical for babies and toddlers. Children often fail to understand the importance of rest and rehydration. Thirst is a late manifestation of dehydration - hence, it is crucial to stay hydrated, especially during ongoing physical activities.
Humidity
In July, the average relative humidity is 42%.Rainfall
In July, the rain falls for 3.2 days. Throughout July, 0.2" (5mm) of precipitation is accumulated. Throughout the year, in North Fontana, there are 48.1 rainfall days, and 6.89" (175mm) of precipitation is accumulated.Snowfall
In North Fontana, snow does not fall in January, March through December.Daylight
The average length of the day in July is 14h and 10min.On the first day of the month, sunrise is at 5:42 am and sunset at 8:05 pm. On the last day of July, in North Fontana, sunrise is at 6:00 am and sunset at 7:51 pm PDT.
Sunshine
The months with the most sunshine in North Fontana are June through August, with an average of 12.1h of sunshine.UV index
July and August, with an average maximum UV index of 7, are months with the highest UV index in North Fontana. A UV Index reading of 6 to 7 represents a high threat to health from exposure to the Sun's UV radiation for the ordinary person.Note: In July, the UV index of 7 transforms into the following advice:
Take precautions against overexposure. Fair-skinned people may get burned in less than 20 minutes. Seek shade and limit direct Sun exposure between 10 a.m. and 4 p.m., when UV radiation is at its peak, but be aware that not all shade structures provide complete sun protection. Experience reduced UV exposure by about half when donning a wide-brim hat.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in July
North Fontana, CA
- Average high temperature in July: 91°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 July: 65.8°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 July
North Fontana, CA
- Average pressure in July: 29.88"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 July
North Fontana, CA
- Average wind speed in July: 5.2mph
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 July
North Fontana, CA
- Average humidity in July: 42%
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 July
North Fontana, CA
- Average rainfall in July: 0.2"
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 July
North Fontana, CA
- Average rainfall days in July: 3.2 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 July
North Fontana, CA
- Average snowfall days in July: 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 July /
Average sunshine in July
North Fontana, CA
- Average daylight in July: 14h and 12min
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 July: 12h and 6min
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 July
North Fontana, CA
- Average sunshine days in July: 25.8 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 July
North Fontana, CA
- Average UV index in July: 7
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 July
North Fontana, CA
- Average cloud cover in July: 6
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 July
North Fontana, CA
- Average visibility in July: 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).
