Contents
- Weather in September
- Frequently asked questions
- Average temperature in September
- Average pressure in September
- Average wind speed in September
- Average humidity in September
- Average rainfall in September
- Average rainfall days in September
- Average daylight in September
- Average sunshine in September
- Average sunshine days in September
- Average UV index in September
- Average cloud cover in September
- Average visibility in September
Weather in September
Temperature
The month of September sees the highest average temperatures, reaching 72.5°F (22.5°C) at the peak and 54.7°F (12.6°C) at the low.Humidity
September and October, with an average relative humidity of 71%, are the least humid months.Rainfall
In Valley Ford, during September, the rain falls for 2.7 days and regularly aggregates up to 0.12" (3mm) of precipitation. In Valley Ford, during the entire year, the rain falls for 83.1 days and collects up to 20" (508mm) of precipitation.Daylight
The average length of the day in September is 12h and 25min.On the first day of September in Valley Ford, sunrise is at 6:41 am and sunset at 7:40 pm. On the last day of the month, sunrise is at 7:07 am and sunset at 6:55 pm PDT.
Sunshine
In Valley Ford, California, the average sunshine in September is 10.8h.UV index
The months with the highest UV index are June through September, with an average maximum UV index of 5. A UV Index estimate of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV rays for average individuals.Note: The maximum daily UV index of 5 in September converts into the following recommendations:
Undertake precautions - It is suggested to shield oneself from sunburn. Direct Sun exposure should be minimized especially during midday when radiation is most intense. To mitigate harm from sun exposure, pick sunglasses offering UVA and UVB defense.
Frequently asked questions
What are the warmest months in Valley Ford?
What is the temperature in September in Valley Ford?
What are the least humid months in Valley Ford?
What is the average humidity in September in Valley Ford?
How much does it rain in Valley Ford in September?
What is the average length of the day in September in Valley Ford?
When is the sunrise / sunset in September in Valley Ford?
How long on average sun shines in September in Valley Ford?
When is the highest UV index in Valley Ford?
What is the UV index reading in September in Valley Ford?
Average temperature in September
Valley Ford, CA
- Average high temperature in September: 72.5°F
The warmest month (with the highest average high temperature) is September (72.5°F).
The month with the lowest average high temperature is December (55.4°F).
- Average low temperature in September: 54.7°F
The month with the highest average low temperature is August (54.9°F).
The coldest month (with the lowest average low temperature) is December (45.3°F).
Average pressure in September
Valley Ford, CA
- Average pressure in September: 29.92"Hg
The month with the highest atmospheric pressure is January (30.13"Hg).
The months with the lowest atmospheric pressure are August and September (29.92"Hg).
Average wind speed in September
Valley Ford, CA
- Average wind speed in September: 7.4mph
The windiest month (with the highest average wind speed) is May (9.9mph).
The calmest month (with the lowest average wind speed) is November (6.7mph).
Average humidity in September
Valley Ford, CA
- Average humidity in September: 71%
The month with the highest relative humidity is March (78%).
The months with the lowest relative humidity are September and October (71%).
Average rainfall in September
Valley Ford, CA
- Average rainfall in September: 0.12"
The wettest month (with the highest rainfall) is February (4.37").
The driest month (with the least rainfall) is August (0.04").
Average rainfall days in September
Valley Ford, CA
- Average rainfall days in September: 2.7 days
The month with the highest number of rainy days is March (14.4 days).
The month with the least rainy days is August (1.1 days).
Average daylight in September /
Average sunshine in September
Valley Ford, CA
- Average daylight in September: 12h and 2min
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 30min).
- Average sunshine in September: 10h and 5min
The months with the most sunshine are July and August (Average sunshine: 11h and 42min).
The month with the least sunshine is December (Average sunshine: 5h and 42min).
Average sunshine days in September
Valley Ford, CA
- Average sunshine days in September: 25.9 days
The month with the most sunshine days is August (27.3 days).
The month with the least sunshine days is March (14.8 days).
Average UV index in September
Valley Ford, CA
- Average UV index in September: 5
The months with the highest UV index are 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 September
Valley Ford, CA
- Average cloud cover in September: 12
The month with the most cloud cover is March (Cloud cover 39).
The month with the least cloud cover is September (Cloud cover 12).
Average visibility in September
Valley Ford, CA
- Average visibility in September: 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).
Valley Ford, California, USA
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