July weather forecastPetrolia, CA
July
Weather in July
July in Petrolia, California, is a pleasant summer month, with an average temperature varying between 51.4°F (10.8°C) and 73°F (22.8°C).Temperature
Petrolia starts July with an average high-temperature of an agreeable 73°F (22.8°C), a minor shift from June's 67.8°F (19.9°C). Significant dips from daytime highs mark the July nights in Petrolia, with a consistent average temperature of 51.4°F (10.8°C).Humidity
The average relative humidity in July is 76%.Rainfall
July is the month with the least rainfall. Rain falls for 1.8 days and accumulates 0.08" (2mm) of precipitation.Snowfall
January, March through December are months without snowfall.Daylight
The average length of the day in July is 14h and 43min.On the first day of July in Petrolia, sunrise is at 5:51 am and sunset at 8:50 pm. On the last day of the month, sunrise is at 6:14 am and sunset at 8:32 pm PDT.
Sunshine
July and August, with an average of 11.6h of sunshine, are months with the most sunshine.UV index
The months with the highest UV index in Petrolia are June through August, with an average maximum UV index of 5. A UV Index of 3 to 5 symbolizes a medium vulnerability from unprotected exposure to Sun's UV rays for average individuals.Note: The daily high UV index of 5 during July translates into the following recommendations:
Make use of precautions - It is urged to ward off sun damage. UV radiation from the Sun is most dangerous during midday; take precautions and seek shade. A wide-brimmed hat is a staple for defending the face, eyes, ears, and neck from the Sun.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in July
Petrolia, CA
- Average high temperature in July: 73°F
The warmest month (with the highest average high temperature) is August (74.1°F).
The month with the lowest average high temperature is December (52.9°F).
- Average low temperature in July: 51.4°F
The month with the highest average low temperature is August (51.8°F).
The coldest month (with the lowest average low temperature) is February (39.7°F).
Average pressure in July
Petrolia, CA
- Average pressure in July: 29.97"Hg
The month with the highest atmospheric pressure is January (30.13"Hg).
The months with the lowest atmospheric pressure are August and September (29.96"Hg).
Average wind speed in July
Petrolia, CA
- Average wind speed in July: 6.6mph
The windiest month (with the highest average wind speed) is June (7.7mph).
The calmest month (with the lowest average wind speed) is August (5.9mph).
Average humidity in July
Petrolia, CA
- Average humidity in July: 76%
The month with the highest relative humidity is March (83%).
The month with the lowest relative humidity is September (73%).
Average rainfall in July
Petrolia, CA
- Average rainfall in July: 0.08"
The wettest month (with the highest rainfall) is December (4.96").
The driest month (with the least rainfall) is July (0.08").
Average rainfall days in July
Petrolia, CA
- Average rainfall days in July: 1.8 days
The month with the highest number of rainy days is March (17.3 days).
The months with the least rainy days are July and August (1.8 days).
Average snowfall in July
Petrolia, CA
- Average snowfall in July: 0"
The month with the highest snowfall is February (0.59").
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
Petrolia, CA
- Average snowfall days in July: 0 days
The month with the highest number of snowfall days is February (0.3 days).
The months with the least snowfall days are January, March, April, May, June, July, August, September, October and November (0 days).
Average daylight in July /
Average sunshine in July
Petrolia, CA
- Average daylight in July: 14h and 42min
The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 24min).
- Average sunshine in July: 11h and 36min
The months with the most sunshine are July and August (Average sunshine: 11h and 36min).
The month with the least sunshine is December (Average sunshine: 5h and 0min).
Average sunshine days in July
Petrolia, CA
- Average sunshine days in July: 28.5 days
The month with the most sunshine days is July (28.5 days).
The month with the least sunshine days is March (11.9 days).
Average UV index in July
Petrolia, CA
- Average UV index in July: 5
The months with the highest UV index are June, July and August (UV index 5).
The months with the lowest UV index are January, February, March, November and December (UV index 3).
Average cloud cover in July
Petrolia, CA
- Average cloud cover in July: 18
The month with the most cloud cover is March (Cloud cover 48).
The month with the least cloud cover is August (Cloud cover 16).
Average visibility in July
Petrolia, CA
- Average visibility in July: 5mi
The months with the highest visibility are January, February, March, April, June, September, October, November and December (6mi).
The months with the lowest visibility are May, July and August (5mi).
