Contents
- Weather in July
- Frequently asked questions
- Average temperature in July
- Average pressure in July
- Average wind speed in July
- Average humidity in July
- Average rainfall in July
- Average rainfall days in July
- Average daylight in July
- Average sunshine in July
- Average sunshine days in July
- Average UV index in July
- Average cloud cover in July
- Average visibility in July
Weather in July
Temperature
Transitioning from June to July, Mill Valley observes an average high-temperature of a still agreeable 70.5°F (21.4°C), differing subtly from the previous month. Nighttime temperature lowers to an average of 54.3°F (12.4°C) in July.Humidity
In Mill Valley, the average relative humidity in July is 75%.Rainfall
The months with the least rainfall are June through September Rain falls for 1.4 days and accumulates 0.04" (1mm) of rain.Daylight
The average length of the day in July is 14h and 29min.On the first day of the month, sunrise is at 5:51 am and sunset at 8:36 pm. On the last day of July, sunrise is at 6:13 am and sunset at 8:19 pm PDT.
Sunshine
The month with the most sunshine is July, with an average of 11.2h of sunshine.UV index
The months with the highest UV index are April, June through September, with an average maximum UV index of 5. A UV Index value of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV radiation for ordinary individuals.Note: In July, a daily maximum UV index of 5 leads to the following instructions:
Take necessary precautions - Protection from skin and eye injury is mandatory. During midday, the Sun's radiation is strongest, and it's advisable to reduce direct exposure. Tightly woven clothing, when worn loosely, shields effectively against the Sun.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the temperatures in July?
What is the average humidity in July?
What is the driest month in Mill Valley?
How much does it rain in July?
How many hours of daylight does Mill Valley have in July?
When are sunrise and sunset in July?
What month has the most sunshine?
How many hours of sunshine does Mill Valley have in July?
When is the highest UV index?
How high is the UV index in July?
Average temperature in July
Mill Valley, CA
- Average high temperature in July: 70.5°F
The warmest month (with the highest average high temperature) is September (72.3°F).
The month with the lowest average high temperature is December (55.4°F).
- Average low temperature in July: 54.3°F
The month with the highest average low temperature is September (56.1°F).
The coldest month (with the lowest average low temperature) is December (45.3°F).
Average pressure in July
Mill Valley, CA
- Average pressure in July: 29.93"Hg
The month with the highest atmospheric pressure is January (30.13"Hg).
The months with the lowest atmospheric pressure are June, August and September (29.92"Hg).
Average wind speed in July
Mill Valley, CA
- Average wind speed in July: 6.6mph
The windiest month (with the highest average wind speed) is May (7.8mph).
The calmest months (with the lowest average wind speed) are October and November (5.5mph).
Average humidity in July
Mill Valley, CA
- Average humidity in July: 75%
The month with the highest relative humidity is March (77%).
The month with the lowest relative humidity is October (68%).
Average rainfall in July
Mill Valley, CA
- Average rainfall in July: 0.04"
The wettest month (with the highest rainfall) is February (0.87").
The driest months (with the least rainfall) are June, July, August and September (0.04").
Average rainfall days in July
Mill Valley, CA
- Average rainfall days in July: 1.4 days
The month with the highest number of rainy days is March (8.8 days).
The months with the least rainy days are June and August (1.2 days).
Average daylight in July /
Average sunshine in July
Mill Valley, CA
- Average daylight in July: 14h and 3min
The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 36min).
- Average sunshine in July: 11h and 1min
The month with the most sunshine is July (Average sunshine: 11h and 12min).
The month with the least sunshine is December (Average sunshine: 5h and 30min).
Average sunshine days in July
Mill Valley, CA
- Average sunshine days in July: 26.3 days
The month with the most sunshine days is June (26.4 days).
The month with the least sunshine days is March (20.7 days).
Average UV index in July
Mill Valley, CA
- Average UV index in July: 5
The months with the highest UV index are April, June, July, August and September (UV index 5).
The months with the lowest UV index are January, February, November and December (UV index 3).
Average cloud cover in July
Mill Valley, CA
- Average cloud cover in July: 21
The month with the most cloud cover is March (Cloud cover 39).
The month with the least cloud cover is September (Cloud cover 19).
Average visibility in July
Mill Valley, 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).
Mill Valley, California, USA
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