September weather forecastDinuba, CA
September
Weather in September
The first month of the autumn, September, is still a hot month in Dinuba, California, with an average temperature ranging between max 91.9°F (33.3°C) and min 60.8°F (16°C).Temperature
The move into September indicates a slight reduction in the average high-temperature, down from August's torrid 98.2°F (36.8°C) to a tropical 91.9°F (33.3°C). Despite a significant disparity with daytime temperatures, an average low-temperature of 60.8°F (16°C) is recorded during September.Humidity
In Dinuba, the average relative humidity in September is 33%.Rainfall
In Dinuba, California, during September, the rain falls for 2.5 days and regularly aggregates up to 0.24" (6mm) of precipitation. In Dinuba, during the entire year, the rain falls for 62.1 days and collects up to 14.49" (368mm) of precipitation.Snowfall
January through November are months without snowfall.Daylight
The average length of the day in September is 12h and 24min.On the first day of September, sunrise is at 6:29 am and sunset at 7:25 pm. On the last day of the month, sunrise is at 6:52 am and sunset at 6:41 pm PDT.
Sunshine
The average sunshine in September is 11.1h.UV index
In Dinuba, the average daily maximum UV index in September is 6. A UV Index of 6 to 7 symbolizes a high health risk from unprotected exposure to Sun's UV rays for the ordinary person.Note: During September, 6 as the daily maximum UV index converts into the following advice:
Undertake protective measures and comply with sun safety rules. Shielding against skin and eye damage is essential. To the best of your ability, limit your exposure to the sun between the hours of 10 a.m. and 4 p.m., when UV radiation is at its peak. Sun protection is enhanced with clothing that boasts a tight weave yet offers a loose fit.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Dinuba, CA
- Average high temperature in September: 91.9°F
The warmest month (with the highest average high temperature) is July (99.1°F).
The month with the lowest average high temperature is December (56.1°F).
- Average low temperature in September: 60.8°F
The month with the highest average low temperature is July (64.4°F).
The coldest month (with the lowest average low temperature) is December (40.6°F).
Average pressure in September
Dinuba, CA
- Average pressure in September: 29.92"Hg
The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.88"Hg).
Average wind speed in September
Dinuba, CA
- Average wind speed in September: 4.5mph
The windiest month (with the highest average wind speed) is June (5.4mph).
The calmest month (with the lowest average wind speed) is December (3.8mph).
Average humidity in September
Dinuba, CA
- Average humidity in September: 33%
The month with the highest relative humidity is January (66%).
The months with the lowest relative humidity are July and August (30%).
Average rainfall in September
Dinuba, CA
- Average rainfall in September: 0.24"
The wettest month (with the highest rainfall) is March (2.76").
The driest months (with the least rainfall) are June and August (0.08").
Average rainfall days in September
Dinuba, CA
- Average rainfall days in September: 2.5 days
The month with the highest number of rainy days is March (11 days).
The month with the least rainy days is August (0.9 days).
Average snowfall days in September
Dinuba, CA
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is December (0.1 days).
The months with the least snowfall days are January, February, March, April, May, June, July, August, September, October and November (0 days).
Average daylight in September /
Average sunshine in September
Dinuba, CA
- Average daylight in September: 12h and 24min
The month with the longest days is June (Average daylight: 14h and 36min).
The month with the shortest days is December (Average daylight: 9h and 42min).
- Average sunshine in September: 11h and 6min
The month with the most sunshine is June (Average sunshine: 12h and 12min).
The month with the least sunshine is December (Average sunshine: 6h and 24min).
Average sunshine days in September
Dinuba, CA
- Average sunshine days in September: 26.4 days
The month with the most sunshine days is August (28.6 days).
The month with the least sunshine days is March (19.6 days).
Average UV index in September
Dinuba, CA
- Average UV index in September: 6
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
Dinuba, CA
- Average cloud cover in September: 6
The month with the most cloud cover is March (Cloud cover 28).
The month with the least cloud cover is August (Cloud cover 4).
Average visibility in September
Dinuba, 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).





