September weather forecastO'Neals, CA
September
Weather in September
September, the first month of the autumn in O'Neals, is still a warm month, with an average temperature fluctuating between 59.7°F (15.4°C) and 85.1°F (29.5°C).Temperature
O'Neals's September average high-temperature settles at a warm 85.1°F (29.5°C), showing a near match with the preceding month. O'Neals's nights in September are distinguished by a pronounced temperature shift from the day, with an average low of 59.7°F (15.4°C).Humidity
In O'Neals, the average relative humidity in September is 30%.Rainfall
In O'Neals, in September, during 2.2 rainfall days, 0.16" (4mm) of precipitation is typically accumulated. In O'Neals, during the entire year, the rain falls for 65.8 days and collects up to 19.06" (484mm) of precipitation.Snowfall
May through October are months without snowfall in O'Neals.Daylight
In September, the average length of the day is 12h and 24min.On the first day of September, sunrise is at 6:30 am and sunset at 7:26 pm. On the last day of the month, sunrise is at 6:54 am and sunset at 6:42 pm PDT.
Sunshine
In September, the average sunshine in O'Neals is 11h.UV index
In O'Neals, the average daily maximum UV index in September is 5. A UV Index reading of 3 to 5 represents a medium health hazard from unsafe exposure to UV radiation for ordinary individuals.Note: The maximum UV index, 5 during September, leads to the following recommendations:
Prioritize safety - The need to safeguard skin and eyes from harm is emphasized. The midday Sun can be harmful due to its potent UV radiation; seek shade and reduce exposure. Opt for tightly woven and loose clothing to enhance protection from the Sun.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
O'Neals, CA
- Average high temperature in September: 85.1°F
The warmest month (with the highest average high temperature) is July (91.2°F).
The month with the lowest average high temperature is December (52.2°F).
- Average low temperature in September: 59.7°F
The month with the highest average low temperature is August (62.6°F).
The coldest month (with the lowest average low temperature) is December (35.8°F).
Average pressure in September
O'Neals, CA
- Average pressure in September: 29.93"Hg
The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.89"Hg).
Average wind speed in September
O'Neals, CA
- Average wind speed in September: 4.7mph
The windiest month (with the highest average wind speed) is March (5.1mph).
The calmest month (with the lowest average wind speed) is December (4.1mph).
Average humidity in September
O'Neals, CA
- Average humidity in September: 30%
The months with the highest relative humidity are February and March (64%).
The month with the lowest relative humidity is August (28%).
Average rainfall in September
O'Neals, CA
- Average rainfall in September: 0.16"
The wettest month (with the highest rainfall) is February (3.74").
The driest months (with the least rainfall) are June, July and August (0.08").
Average rainfall days in September
O'Neals, CA
- Average rainfall days in September: 2.2 days
The month with the highest number of rainy days is March (10.9 days).
The month with the least rainy days is August (1.1 days).
Average snowfall in September
O'Neals, CA
- Average snowfall in September: 0"
The month with the highest snowfall is February (3.78").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in September
O'Neals, CA
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (2.2 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in September /
Average sunshine in September
O'Neals, CA
- Average daylight in September: 12h and 24min
The month with the longest days is June (Average daylight: 14h and 42min).
The month with the shortest days is December (Average daylight: 9h and 42min).
- Average sunshine in September: 11h and 0min
The month with the most sunshine is July (Average sunshine: 12h and 12min).
The month with the least sunshine is December (Average sunshine: 6h and 24min).
Average sunshine days in September
O'Neals, CA
- Average sunshine days in September: 25.9 days
The month with the most sunshine days is August (27.6 days).
The month with the least sunshine days is March (17.9 days).
Average UV index in September
O'Neals, CA
- Average UV index in September: 5
The month with the highest UV index is July (UV index 7).
The month with the lowest UV index is November (UV index 2).
Average cloud cover in September
O'Neals, CA
- Average cloud cover in September: 6
The month with the most cloud cover is March (Cloud cover 28).
The months with the least cloud cover are July and August (Cloud cover 5).
Average visibility in September
O'Neals, 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).





