July weather forecastPotrero, CA
July
Weather in July
July is a hot summer month in Potrero, California, with temperature in the range of an average low of 64°F (17.8°C) and an average high of 86°F (30°C).Temperature
A minimal variation is noted in Potrero's average high-temperature at the onset of July, reaching a tropical 86°F (30°C) from June's 81.5°F (27.5°C). Potrero, amidst the high July temperatures, experiences a substantial shift to an average nighttime low of 64°F (17.8°C).Heat index
The average heat index in July is appraised at a hot 87.8°F (31°C). Uninterrupted exposure and activity might result in fatigue, potentially causing heat cramps.Heat index readings emphasize conditions of light breezes and shaded spots. The direct sunshine could escalate the heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'felt air temperature', represents the fusion of temperature and moisture in the air to suggest how warm it feels. This effect tends to be personal, with the weather perception differing among individuals due to variations in body mass, height, and exertion. It is essential to be conscious of the fact that direct sunlight can intensify the felt heat, leading to an elevation in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical for babies and toddlers. Youngsters frequently overlook the need for breaks and fluid intake. Thirst is an advanced sign of dehydration - thereby highlighting the importance of keeping hydrated, particularly during long physical activities.
Humidity
In July, the average relative humidity in Potrero is 52%.Rainfall
In Potrero, in July, during 7.3 rainfall days, 0.75" (19mm) of precipitation is typically accumulated. In Potrero, during the entire year, the rain falls for 55.1 days and collects up to 6.93" (176mm) of precipitation.Snowfall
January, March through December are months without snowfall.Daylight
In July, the average length of the day is 14h and 3min.On the first day of July, sunrise is at 5:42 am and sunset at 7:58 pm. On the last day of the month, sunrise is at 6:00 am and sunset at 7:45 pm PDT.
Sunshine
The months with the most sunshine are June and July, with an average of 12.1h of sunshine.UV index
With an average maximum UV index of 7, July is the month with the highest UV index. A UV Index estimate of 6 to 7 represents a high health vulnerability from unsafe exposure to UV radiation for the ordinary person.Note: In July, the maximum UV index of 7 translates into these guidelines:
Take precautions against overexposure. Fair-skinned people may get burned in less than 20 minutes. The Sun emits the most powerful UV radiation between 10 a.m. and 4 p.m. Try to avoid direct sunlight during this period. Consider a wide-brim hat essential for effective sun defense covering your face, neck, and eyes.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in July
Potrero, CA
- Average high temperature in July: 86°F
The warmest month (with the highest average high temperature) is August (87.4°F).
The month with the lowest average high temperature is December (61.2°F).
- Average low temperature in July: 64°F
The month with the highest average low temperature is August (66.2°F).
The coldest months (with the lowest average low temperature) are February and December (45.1°F).
Average pressure in July
Potrero, CA
- Average pressure in July: 29.88"Hg
The month with the highest atmospheric pressure is January (30.08"Hg).
The month with the lowest atmospheric pressure is June (29.85"Hg).
Average wind speed in July
Potrero, CA
- Average wind speed in July: 5mph
The windiest months (with the highest average wind speed) are February and December (6.4mph).
The calmest months (with the lowest average wind speed) are August and September (4.7mph).
Average humidity in July
Potrero, CA
- Average humidity in July: 52%
The month with the highest relative humidity is May (59%).
The month with the lowest relative humidity is November (48%).
Average rainfall in July
Potrero, CA
- Average rainfall in July: 0.75"
The wettest month (with the highest rainfall) is February (1.3").
The driest month (with the least rainfall) is June (0.08").
Average rainfall days in July
Potrero, CA
- Average rainfall days in July: 7.3 days
The month with the highest number of rainy days is July (7.3 days).
The month with the least rainy days is June (1.3 days).
Average snowfall in July
Potrero, CA
- Average snowfall in July: 0"
The month with the highest snowfall is February (0.12").
The months with the least snowfall are January, March, April, May, June, July, August, September, October, November and December (0").
Average snowfall days in July
Potrero, CA
- Average snowfall days in July: 0 days
The month with the highest number of snowfall days is February (0.2 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
Potrero, CA
- Average daylight in July: 14h and 0min
The month with the longest days is June (Average daylight: 14h and 18min).
The month with the shortest days is December (Average daylight: 10h and 0min).
- Average sunshine in July: 12h and 6min
The months with the most sunshine are June and July (Average sunshine: 12h and 6min).
The month with the least sunshine is December (Average sunshine: 6h and 36min).
Average sunshine days in July
Potrero, CA
- Average sunshine days in July: 19.3 days
The month with the most sunshine days is June (27.9 days).
The month with the least sunshine days is July (19.3 days).
Average UV index in July
Potrero, CA
- Average UV index in July: 7
The month with the highest UV index is July (UV index 7).
The month with the lowest UV index is December (UV index 3).
Average cloud cover in July
Potrero, CA
- Average cloud cover in July: 9
The month with the most cloud cover is December (Cloud cover 25).
The month with the least cloud cover is June (Cloud cover 6).
Average visibility in July
Potrero, 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).
