July weather forecastColton, CA
July
Weather in July
July in Colton, California, is a tropical summer month, with an average temperature ranging between max 91°F (32.8°C) and min 64.9°F (18.3°C).Temperature
A soft shift in the average high-temperature is noticeable in July, transitioning from a moderately hot 85.1°F (29.5°C) in June to a tropical 91°F (32.8°C). Colton records a pronounced decline from the day's peak to an average nighttime low-temperature of 64.9°F (18.3°C) throughout July.Heat index
The average heat index in July is estimated at a tropical 93.2°F (34°C). Implement more preventive measures, heat cramps and heat exhaustion are probable. Heatstroke might result from extended activity.Heat index guidelines indicate values are for light wind scenarios and shaded regions. Direct exposure to sunlight could raise the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'feels like', is a calculated temperature value of how hot it feels when the moisture in the air is factored in. The influence of weather is personal, with varied individuals experiencing it differently due to differences in body mass, stature, and physical exertion levels. When you're directly under the sun's rays, remember that the heat index may surge by 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially crucial for babies and toddlers. Kids frequently ignore the importance of taking a break and rehydrating. Thirst is a late symptom of dehydration - thus, it is crucial to stay hydrated, especially during long-lasting physical activities.
Humidity
The average relative humidity in July is 41%.Rainfall
In Colton, in July, during 3.1 rainfall days, 0.2" (5mm) of precipitation is typically accumulated. In Colton, during the entire year, the rain falls for 46.6 days and collects up to 6.18" (157mm) of precipitation.Snowfall
January, March through December are months without snowfall.Daylight
In July, the average length of the day is 14h and 10min.On the first day of July in Colton, sunrise is at 5:41 am and sunset at 8:04 pm. On the last day of the month, sunrise is at 6:00 am and sunset at 7:50 pm PDT.
Sunshine
With an average of 12.2h of sunshine, July has the most sunshine of the year in Colton.UV index
The months with the highest UV index are June through August, with an average maximum UV index of 7. A UV Index of 6 to 7 symbolizes a high health vulnerability from unprotected exposure to Sun's UV rays for ordinary individuals.Note: A maximum UV index of 7 in July translates into the following recommendations:
Stand by precautions and apply sun safety measures. Evading sunburn is of great importance. UV radiation from the Sun is most intense between 10 a.m. and 4 p.m. Try to avoid direct sunlight during this period. 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
Colton, CA
- Average high temperature in July: 91°F
The warmest month (with the highest average high temperature) is August (91.9°F).
The month with the lowest average high temperature is December (59.9°F).
- Average low temperature in July: 64.9°F
The month with the highest average low temperature is August (65.8°F).
The coldest month (with the lowest average low temperature) is February (43.5°F).
Average pressure in July
Colton, 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
Colton, CA
- Average wind speed in July: 5.1mph
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
Colton, CA
- Average humidity in July: 41%
The month with the highest relative humidity is February (53%).
The month with the lowest relative humidity is August (38%).
Average rainfall in July
Colton, CA
- Average rainfall in July: 0.2"
The wettest month (with the highest rainfall) is December (1.42").
The driest month (with the least rainfall) is June (0.04").
Average rainfall days in July
Colton, CA
- Average rainfall days in July: 3.1 days
The month with the highest number of rainy days is March (6.7 days).
The month with the least rainy days is June (1.2 days).
Average snowfall days in July
Colton, 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
Colton, 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 12min
The month with the most sunshine is July (Average sunshine: 12h and 12min).
The month with the least sunshine is December (Average sunshine: 6h and 54min).
Average sunshine days in July
Colton, CA
- Average sunshine days in July: 25.8 days
The months with the most sunshine days are June and October (27.9 days).
The month with the least sunshine days is February (21.7 days).
Average UV index in July
Colton, CA
- Average UV index in July: 7
The months with the highest UV index are June, July and August (UV index 7).
The month with the lowest UV index is December (UV index 3).
Average cloud cover in July
Colton, 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
Colton, 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).





