July weather forecastLa Mesa, CA
July
Weather in July
July, like June, in La Mesa, California, is a moderately hot summer month, with temperature in the range of an average high of 80.2°F (26.8°C) and an average low of 64°F (17.8°C).Temperature
The transition into July notes an average high-temperature of a still moderately hot 80.2°F (26.8°C), revealing a mild distinction from the 75.7°F (24.3°C) in June. In La Mesa, July is marked by an average low-temperature of 64°F (17.8°C).Humidity
In July, the average relative humidity is 65%.Rainfall
In La Mesa, in July, it is raining for 4.4 days, with typically 0.31" (8mm) of accumulated precipitation. Throughout the year, there are 54.5 rainfall days, and 6.57" (167mm) of precipitation is accumulated.Daylight
The average length of the day in July is 14h and 4min.On the first day of the month, sunrise is at 5:44 am and sunset at 8:00 pm. On the last day of July, sunrise is at 6:01 am and sunset at 7:47 pm PDT.
Sunshine
The month with the most sunshine is July, with an average of 12h of sunshine.UV index
June through September, with an average maximum UV index of 6, are months with the highest UV index. A UV Index value of 6 to 7 symbolizes a high threat to health from exposure to the Sun's UV radiation for ordinary individuals.Note: In July, a regular UV index of 6 translates into these guidelines:
Undertake precautions and comply with sun safety standards. Protection from skin and eye injury is vital. Between 10 a.m. and 4 p.m., UV radiation is strongest. Make an effort to avoid direct sunlight during this time, remembering that shade structures may not provide full sun protection. A hat with a broad brim is indispensable, filtering out up to half of UV rays.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in July
La Mesa, CA
- Average high temperature in July: 80.2°F
The warmest month (with the highest average high temperature) is August (82.6°F).
The month with the lowest average high temperature is December (64.2°F).
- Average low temperature in July: 64°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 (48.7°F).
Average pressure in July
La Mesa, CA
- Average pressure in July: 29.9"Hg
The month with the highest atmospheric pressure is January (30.09"Hg).
The month with the lowest atmospheric pressure is June (29.87"Hg).
Average wind speed in July
La Mesa, CA
- Average wind speed in July: 4.9mph
The windiest month (with the highest average wind speed) is April (5.7mph).
The calmest month (with the lowest average wind speed) is October (4.5mph).
Average humidity in July
La Mesa, CA
- Average humidity in July: 65%
The month with the highest relative humidity is May (68%).
The month with the lowest relative humidity is November (55%).
Average rainfall in July
La Mesa, CA
- Average rainfall in July: 0.31"
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
La Mesa, CA
- Average rainfall days in July: 4.4 days
The month with the highest number of rainy days is March (7.8 days).
The month with the least rainy days is June (1.4 days).
Average daylight in July /
Average sunshine in July
La Mesa, CA
- Average daylight in July: 14h and 6min
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 0min
The month with the most sunshine is July (Average sunshine: 12h and 0min).
The month with the least sunshine is December (Average sunshine: 6h and 42min).
Average sunshine days in July
La Mesa, CA
- Average sunshine days in July: 24.7 days
The month with the most sunshine days is June (28.1 days).
The month with the least sunshine days is February (21 days).
Average UV index in July
La Mesa, CA
- Average UV index in July: 6
The months with the highest UV index are June, July, August and September (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 4).
Average cloud cover in July
La Mesa, CA
- Average cloud cover in July: 10
The month with the most cloud cover is March (Cloud cover 24).
The month with the least cloud cover is August (Cloud cover 8).
Average visibility in July
La Mesa, 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).
