September weather forecastFlournoy, CA
September
Weather in September
September, the first month of the autumn in Flournoy, is still a hot month, with temperature in the range of an average high of 87.4°F (30.8°C) and an average low of 60.4°F (15.8°C).Temperature
September is characterized by a slight reduction in average high-temperature, easing from a tropical 93.9°F (34.4°C) in August to a still hot 87.4°F (30.8°C). The temperature in Flournoy notes a substantial fall from the daily peak to an average of 60.4°F (15.8°C) during September nights.Humidity
In Flournoy, the average relative humidity in September is 34%.Rainfall
In September, in Flournoy, the rain falls for 2.8 days. Throughout September, 0.2" (5mm) of precipitation is accumulated. Throughout the year, in Flournoy, there are 81.1 rainfall days, and 15.31" (389mm) of precipitation is accumulated.Daylight
In September, the average length of the day in Flournoy is 12h and 26min.On the first day of September, sunrise is at 6:38 am and sunset at 7:40 pm. On the last day of the month, sunrise is at 7:05 am and sunset at 6:53 pm PDT.
Sunshine
In September, the average sunshine is 11.2h.UV index
The average daily maximum UV index in September is 5. A UV Index reading of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV rays for ordinary individuals.Note: The UV index of 5 in September translates into these instructions:
Preventative actions are necessary - The mandate to avoid skin and eye damage is in place. Being exposed to the midday Sun can have harmful effects due to strong UV radiation; always take precautions. On days when the sun blazes, arm yourself with sunglasses that block UVA and UVB radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Flournoy, CA
- Average high temperature in September: 87.4°F
The warmest month (with the highest average high temperature) is July (95.5°F).
The month with the lowest average high temperature is December (52.7°F).
- Average low temperature in September: 60.4°F
The month with the highest average low temperature is July (64°F).
The coldest month (with the lowest average low temperature) is December (39.2°F).
Average pressure in September
Flournoy, CA
- Average pressure in September: 29.92"Hg
The month with the highest atmospheric pressure is January (30.15"Hg).
The months with the lowest atmospheric pressure are June, July and August (29.91"Hg).
Average wind speed in September
Flournoy, CA
- Average wind speed in September: 5.6mph
The windiest months (with the highest average wind speed) are March and October (6.2mph).
The calmest month (with the lowest average wind speed) is August (5mph).
Average humidity in September
Flournoy, CA
- Average humidity in September: 34%
The month with the highest relative humidity is March (70%).
The months with the lowest relative humidity are July and August (33%).
Average rainfall in September
Flournoy, CA
- Average rainfall in September: 0.2"
The wettest month (with the highest rainfall) is December (2.83").
The driest month (with the least rainfall) is July (0.08").
Average rainfall days in September
Flournoy, CA
- Average rainfall days in September: 2.8 days
The month with the highest number of rainy days is March (13.5 days).
The month with the least rainy days is August (1.4 days).
Average daylight in September /
Average sunshine in September
Flournoy, 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 December (Average sunshine: 5h and 48min).
Average sunshine days in September
Flournoy, CA
- Average sunshine days in September: 26.3 days
The months with the most sunshine days are July and August (28.8 days).
The month with the least sunshine days is March (15.8 days).
Average UV index in September
Flournoy, CA
- Average UV index in September: 5
The months with the highest UV index are June, July and August (UV index 7).
The months with the lowest UV index are January, February, November and December (UV index 3).
Average cloud cover in September
Flournoy, CA
- Average cloud cover in September: 8
The month with the most cloud cover is March (Cloud cover 37).
The month with the least cloud cover is July (Cloud cover 4).
Average visibility in September
Flournoy, 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).
