September weather forecastGenesee, CA
September
Weather in September
September, the first month of the autumn in Genesee, is also a moderately hot month, with temperature in the range of an average low of 43.9°F (6.6°C) and an average high of 75°F (23.9°C).Temperature
September brings a slight decrease in temperature, down from a moderately hot 82.9°F (28.3°C) in August to a still warm 75°F (23.9°C). Genesee registers a marked temperature plunge to a frosty 43.9°F (6.6°C) during the cool September nights.Humidity
The average relative humidity in September in Genesee, California, is 47%.Rainfall
In Genesee, in September, during 4.1 rainfall days, 0.39" (10mm) of precipitation is typically accumulated. Throughout the year, there are 91.7 rainfall days, and 23.19" (589mm) of precipitation is accumulated.Snowfall
June through September are months without snowfall.Daylight
In Genesee, California, the average length of the day in September is 12h and 26min.On the first day of the month, sunrise is at 6:31 am and sunset at 7:33 pm. On the last day of September, sunrise is at 6:59 am and sunset at 6:46 pm PDT.
Sunshine
In Genesee, the average sunshine in September is 11.2h.UV index
The average daily maximum UV index in September is 4. A UV Index of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV radiation for average individuals.Note: A maximum UV index of 4 in September translates into the following recommendations:
Exercise caution. The susceptibility of light skin individuals to burns is less than 30 minutes. Considering the Sun's intensity during midday, it's wise to minimize direct exposure. Safeguard your eyes, ears, and face from sun rays with the aid of a wide-brim hat.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Genesee, CA
- Average high temperature in September: 75°F
The warmest month (with the highest average high temperature) is July (83.1°F).
The month with the lowest average high temperature is December (39.2°F).
- Average low temperature in September: 43.9°F
The month with the highest average low temperature is July (49.1°F).
The coldest month (with the lowest average low temperature) is December (23.4°F).
Average pressure in September
Genesee, CA
- Average pressure in September: 29.93"Hg
The month with the highest atmospheric pressure is January (30.19"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).
Average wind speed in September
Genesee, CA
- Average wind speed in September: 5mph
The windiest month (with the highest average wind speed) is March (6.4mph).
The calmest month (with the lowest average wind speed) is August (4.7mph).
Average humidity in September
Genesee, CA
- Average humidity in September: 47%
The months with the highest relative humidity are January and March (81%).
The month with the lowest relative humidity is July (41%).
Average rainfall in September
Genesee, CA
- Average rainfall in September: 0.39"
The wettest months (with the highest rainfall) are February and December (4.06").
The driest month (with the least rainfall) is July (0.12").
Average rainfall days in September
Genesee, CA
- Average rainfall days in September: 4.1 days
The month with the highest number of rainy days is March (13.3 days).
The month with the least rainy days is August (1.8 days).
Average snowfall in September
Genesee, CA
- Average snowfall in September: 0"
The month with the highest snowfall is February (13.07").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Genesee, CA
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is March (8.5 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Genesee, CA
- Average daylight in September: 12h and 24min
The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 24min).
- Average sunshine in September: 11h and 12min
The month with the most sunshine is July (Average sunshine: 12h and 6min).
The month with the least sunshine is January (Average sunshine: 5h and 24min).
Average sunshine days in September
Genesee, CA
- Average sunshine days in September: 25.6 days
The month with the most sunshine days is August (27.8 days).
The month with the least sunshine days is March (12.3 days).
Average UV index in September
Genesee, CA
- Average UV index in September: 4
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, February, March, November and December (UV index 2).
Average cloud cover in September
Genesee, CA
- Average cloud cover in September: 11
The month with the most cloud cover is March (Cloud cover 45).
The months with the least cloud cover are July and August (Cloud cover 6).
Average visibility in September
Genesee, CA
- Average visibility in September: 6mi
The months with the highest visibility are April, May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January, February, March and December (5mi).





