September weather forecastMarshall, CA
September
Weather in September
September, the first month of the autumn in Marshall, is still a pleasant month, with temperature in the range of an average high of 69.4°F (20.8°C) and an average low of 56.3°F (13.5°C).Temperature
Marshall witnesses the warmest weather in September, with temperatures averaging a high of 69.4°F (20.8°C) and a low of 56.3°F (13.5°C).Humidity
In September, the average relative humidity in Marshall, California, is 75%.Rainfall
In Marshall, in September, it is raining for 2.2 days, with typically 0.08" (2mm) of accumulated precipitation. Throughout the year, in Marshall, there are 55.1 rainfall days, and 4.65" (118mm) of precipitation is accumulated.Daylight
The average length of the day in September is 12h and 25min.On the first day of September in Marshall, 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 September, the average sunshine is 10.7h.UV index
June through September, with an average maximum UV index of 5, are months with the highest UV index. A UV Index reading of 3 to 5 represents a moderate health risk from exposure to the Sun's UV rays for the average person.Note: A maximum UV index of 5 in September translates into the following recommendations:
Prioritize safety - The need to safeguard skin and eyes from harm is emphasized. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. Sunglasses providing both UVA and UVB protection are non-negotiable on sunlit days.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Marshall, CA
- Average high temperature in September: 69.4°F
The warmest month (with the highest average high temperature) is September (69.4°F).
The month with the lowest average high temperature is December (55.4°F).
- Average low temperature in September: 56.3°F
The month with the highest average low temperature is September (56.3°F).
The coldest month (with the lowest average low temperature) is December (46.8°F).
Average pressure in September
Marshall, 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
Marshall, CA
- Average wind speed in September: 7.6mph
The windiest months (with the highest average wind speed) are April and May (10mph).
The calmest month (with the lowest average wind speed) is November (6.9mph).
Average humidity in September
Marshall, CA
- Average humidity in September: 75%
The months with the highest relative humidity are July and August (79%).
The month with the lowest relative humidity is October (72%).
Average rainfall in September
Marshall, CA
- Average rainfall in September: 0.08"
The wettest month (with the highest rainfall) is February (0.98").
The driest month (with the least rainfall) is June (0.04").
Average rainfall days in September
Marshall, CA
- Average rainfall days in September: 2.2 days
The month with the highest number of rainy days is March (9.4 days).
The month with the least rainy days is June (1.5 days).
Average daylight in September /
Average sunshine in September
Marshall, CA
- Average daylight in September: 12h and 24min
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 September: 10h and 42min
The month with the most sunshine is July (Average sunshine: 11h and 36min).
The month with the least sunshine is December (Average sunshine: 5h and 36min).
Average sunshine days in September
Marshall, CA
- Average sunshine days in September: 25.1 days
The months with the most sunshine days are June and October (25.9 days).
The month with the least sunshine days is March (19.8 days).
Average UV index in September
Marshall, 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 February and December (UV index 3).
Average cloud cover in September
Marshall, CA
- Average cloud cover in September: 16
The month with the most cloud cover is March (Cloud cover 38).
The month with the least cloud cover is September (Cloud cover 16).
Average visibility in September
Marshall, 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).
