July weather forecastRancho Cucamonga, CA
July
Weather in July
July in Rancho Cucamonga, California, is a hot summer month, with an average temperature ranging between min 64.8°F (18.2°C) and max 90.5°F (32.5°C).Temperature
In Rancho Cucamonga, stepping into July brings a gentle temperature nudge, moving slightly up from June's moderately hot 84.7°F (29.3°C) to a tropical 90.5°F (32.5°C). A marked difference from the daytime temperatures, Rancho Cucamonga's nighttime temperature falls to an average low of 64.8°F (18.2°C) in July.Heat index
For most parts of July, the heat index is appraised at a hot 93.2°F (34°C). Exercise enhanced safety steps, heat cramps and heat exhaustion are probable. Heatstroke could be a result of sustained activity.When referencing the heat index, its values are suitable for shady environments and light breezes. Being exposed to direct sunshine might trigger a heat index increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'feels like', arises from combining readings of air temperature and relative moisture content. An individual's perception of weather can be influenced by a variety of factors including metabolic differences, being pregnant, and their degree of physical exertion. Direct sun rays have a notable impact on perceived temperature, which can raise the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially crucial for babies and toddlers. Typically, young kids are at a higher risk than adults since they sweat less. Also, the larger skin surface in proportion to their small bodies and the heightened heat production due to their active nature adds to their vulnerability.
Humidity
The average relative humidity in July is 44%.Rainfall
In Rancho Cucamonga, in July, it is raining for 2.8 days, with typically 0.16" (4mm) of accumulated precipitation. In Rancho Cucamonga, California, during the entire year, the rain falls for 42.3 days and collects up to 4.53" (115mm) of precipitation.Snowfall
In Rancho Cucamonga, snow does not fall in January, March through December.Daylight
In Rancho Cucamonga, the average length of the day in July is 14h and 10min.On the first day of July, sunrise is at 5:42 am and sunset at 8:05 pm. On the last day of the month, sunrise is at 6:01 am and sunset at 7:51 pm PDT.
Sunshine
The month with the most sunshine is July, with an average of 12.1h of sunshine.UV index
The months with the highest UV index are July and August, with an average maximum UV index of 7. A UV Index value of 6 to 7 symbolizes a high health hazard from exposure to the Sun's UV rays for average individuals.Note: The daily maximum UV index of 7 in July interprets into the following advice:
Take precautions and adopt sun safety practices. Protection against sunburn is obliged. Stay out of direct sunlight between 10 a.m. and 4 p.m., when UV radiation is most intense, and remember that not all shade structures provide complete protection. Shield yourself from the harmful effects of UV radiation with sun-protective attire, a hat, and quality sunglasses.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in July
Rancho Cucamonga, CA
- Average high temperature in July: 90.5°F
The warmest month (with the highest average high temperature) is August (91.8°F).
The month with the lowest average high temperature is December (61.7°F).
- Average low temperature in July: 64.8°F
The month with the highest average low temperature is August (66.6°F).
The coldest months (with the lowest average low temperature) are February and December (45.3°F).
Average pressure in July
Rancho Cucamonga, CA
- Average pressure in July: 29.89"Hg
The month with the highest atmospheric pressure is January (30.1"Hg).
The month with the lowest atmospheric pressure is June (29.86"Hg).
Average wind speed in July
Rancho Cucamonga, CA
- Average wind speed in July: 5.1mph
The windiest month (with the highest average wind speed) is May (5.9mph).
The calmest month (with the lowest average wind speed) is September (4.5mph).
Average humidity in July
Rancho Cucamonga, CA
- Average humidity in July: 44%
The months with the highest relative humidity are February, March and May (53%).
The month with the lowest relative humidity is August (41%).
Average rainfall in July
Rancho Cucamonga, CA
- Average rainfall in July: 0.16"
The wettest month (with the highest rainfall) is February (0.98").
The driest month (with the least rainfall) is June (0.04").
Average rainfall days in July
Rancho Cucamonga, CA
- Average rainfall days in July: 2.8 days
The month with the highest number of rainy days is March (6.3 days).
The month with the least rainy days is June (0.9 days).
Average snowfall days in July
Rancho Cucamonga, 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
Rancho Cucamonga, 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 month with the most sunshine is July (Average sunshine: 12h and 6min).
The months with the least sunshine are February and December (Average sunshine: 6h and 54min).
Average sunshine days in July
Rancho Cucamonga, CA
- Average sunshine days in July: 25.3 days
The month with the most sunshine days is June (28.3 days).
The month with the least sunshine days is February (22.8 days).
Average UV index in July
Rancho Cucamonga, 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
Rancho Cucamonga, CA
- Average cloud cover in July: 6
The months with the most cloud cover are February and December (Cloud cover 21).
The month with the least cloud cover is August (Cloud cover 5).
Average visibility in July
Rancho Cucamonga, 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).
