July weather forecastLivermore, CA
July
Weather in July
July in Livermore, California, is a hot summer month, with an average temperature fluctuating between 86°F (30°C) and 55.8°F (13.2°C).Temperature
July, characterized by an average high temperature of 86°F (30°C) and a low temperature of 55.8°F (13.2°C), is generally the warmest month.Heat index
The heat index value during July is calculated to be a hot 89.6°F (32°C). Ongoing activity coupled with exposure often results in weariness and could induce heat cramps.Take into consideration that the heat index values are calculated for shade and light wind conditions. Exposure to the direct sun could elevate the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'felt air temperature', is a composite of temperature and humidity figures to convey how warm it feels. Additional factors encompassing metabolic differences, the level of physical activity, and clothing can impact the individual's perception of temperature. One should be aware that direct sunshine can amplify the perceived temperature, raising the heat index by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly important for children. Children often lack awareness of the importance of taking breaks and rehydrating. The feeling of thirst is a late indication of dehydration, so maintaining hydration, especially during long periods of physical activity, is critical.
Humidity
July and September, with an average relative humidity of 55%, are the least humid months.Rainfall
In Livermore, in July, during 2.1 rainfall days, 0.08" (2mm) of precipitation is typically accumulated. In Livermore, during the entire year, the rain falls for 70.6 days and collects up to 11.3" (287mm) of precipitation.Daylight
In July, the average length of the day is 14h and 28min.On the first day of July, sunrise is at 5:49 am and sunset at 8:32 pm. On the last day of the month, sunrise is at 6:10 am and sunset at 8:16 pm PDT.
Sunshine
July has the most sunshine of the year, with an average of 12.1h of sunshine.UV index
The months with the highest UV index are June through August, with an average maximum UV index of 6. A UV Index of 6 to 7 symbolizes a high threat to health from exposure to the Sun's UV radiation for ordinary individuals.Note: In July, the maximum UV index of 6 transforms into these recommendations:
Continue precautions and advocate sun safety advice. Deterrence of sunburn is indispensable. Avoid direct Sun exposure and seek shade between 10 a.m. and 4 p.m., when UV radiation is at its peak, but keep in mind that not all shade structures provide complete protection. Opt for tightly woven and loose clothing to enhance protection from the Sun.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in July
Livermore, CA
- Average high temperature in July: 86°F
The warmest month (with the highest average high temperature) is July (86°F).
The month with the lowest average high temperature is December (54.9°F).
- Average low temperature in July: 55.8°F
The month with the highest average low temperature is August (56.7°F).
The coldest month (with the lowest average low temperature) is January (41.4°F).
Average pressure in July
Livermore, CA
- Average pressure in July: 29.93"Hg
The month with the highest atmospheric pressure is January (30.14"Hg).
The months with the lowest atmospheric pressure are June, August and September (29.92"Hg).
Average wind speed in July
Livermore, CA
- Average wind speed in July: 6.1mph
The windiest months (with the highest average wind speed) are May and June (6.5mph).
The calmest month (with the lowest average wind speed) is November (4.2mph).
Average humidity in July
Livermore, CA
- Average humidity in July: 55%
The month with the highest relative humidity is March (74%).
The months with the lowest relative humidity are July and September (55%).
Average rainfall in July
Livermore, CA
- Average rainfall in July: 0.08"
The wettest month (with the highest rainfall) is February (2.09").
The driest month (with the least rainfall) is August (0.04").
Average rainfall days in July
Livermore, CA
- Average rainfall days in July: 2.1 days
The month with the highest number of rainy days is March (12.7 days).
The month with the least rainy days is August (1.3 days).
Average daylight in July /
Average sunshine in July
Livermore, CA
- Average daylight in July: 14h and 30min
The month with the longest days is June (Average daylight: 14h and 42min).
The month with the shortest days is December (Average daylight: 9h and 36min).
- Average sunshine in July: 12h and 6min
The month with the most sunshine is July (Average sunshine: 12h and 6min).
The month with the least sunshine is December (Average sunshine: 6h and 0min).
Average sunshine days in July
Livermore, CA
- Average sunshine days in July: 28.3 days
The month with the most sunshine days is August (28.8 days).
The month with the least sunshine days is March (17.6 days).
Average UV index in July
Livermore, CA
- Average UV index in July: 6
The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 3).
Average cloud cover in July
Livermore, CA
- Average cloud cover in July: 5
The month with the most cloud cover is March (Cloud cover 35).
The month with the least cloud cover is July (Cloud cover 5).
Average visibility in July
Livermore, 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).
