September weather forecastDairyland, CA
September
Weather in September
September, the first month of the autumn in Dairyland, is also a hot month, with temperature in the range of an average high of 92.1°F (33.4°C) and an average low of 62.6°F (17°C).Temperature
September signals a slight drop in average high-temperature, sliding from August's fiery hot 98.2°F (36.8°C) to a tropical 92.1°F (33.4°C). Dairyland's average low-temperature of 62.6°F (17°C) in September reflects a significant disparity from the daytime highs.Humidity
In September, the average relative humidity in Dairyland is 34%.Rainfall
In September, the rain falls for 1.5 days. Throughout September, 0.08" (2mm) of precipitation is accumulated. Throughout the year, in Dairyland, there are 51 rainfall days, and 7.56" (192mm) of precipitation is accumulated.Daylight
The average length of the day in September in Dairyland, California, is 12h and 24min.On the first day of the month, sunrise is at 6:32 am and sunset at 7:29 pm. On the last day of September, sunrise is at 6:56 am and sunset at 6:45 pm PDT.
Sunshine
In September, the average sunshine in Dairyland is 11.4h.UV index
In September, the average daily maximum UV index is 6. A UV Index of 6 to 7 symbolizes a high threat to health from unsafe exposure to UV radiation for average individuals.Note: In September, an average UV index of 6 transforms into the following instructions:
Implement preventive steps and embrace sun safety standards. Protection from skin and eye distress is compulsory. Avoid direct exposure to the Sun between 10 a.m. and 4 p.m., the peak period for UV radiation, noting that objects like parasols or canopies might not offer complete sun protection. A wide-brimmed hat is a staple for defending the face, eyes, ears, and neck from the Sun.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Dairyland, CA
- Average high temperature in September: 92.1°F
The warmest month (with the highest average high temperature) is July (100°F).
The month with the lowest average high temperature is December (56.3°F).
- Average low temperature in September: 62.6°F
The month with the highest average low temperature is July (65.8°F).
The coldest month (with the lowest average low temperature) is December (41.9°F).
Average pressure in September
Dairyland, 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 (29.91"Hg).
Average wind speed in September
Dairyland, CA
- Average wind speed in September: 5.9mph
The windiest month (with the highest average wind speed) is June (7.9mph).
The calmest month (with the lowest average wind speed) is November (4.7mph).
Average humidity in September
Dairyland, CA
- Average humidity in September: 34%
The month with the highest relative humidity is January (68%).
The month with the lowest relative humidity is July (31%).
Average rainfall in September
Dairyland, CA
- Average rainfall in September: 0.08"
The wettest month (with the highest rainfall) is March (1.46").
The driest month (with the least rainfall) is August (0.04").
Average rainfall days in September
Dairyland, CA
- Average rainfall days in September: 1.5 days
The month with the highest number of rainy days is March (8.6 days).
The month with the least rainy days is June (0.8 days).
Average daylight in September /
Average sunshine in September
Dairyland, 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 24min
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 12min).
Average sunshine days in September
Dairyland, CA
- Average sunshine days in September: 27.2 days
The month with the most sunshine days is June (28.8 days).
The month with the least sunshine days is February (21.5 days).
Average UV index in September
Dairyland, 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
Dairyland, CA
- Average cloud cover in September: 5
The months with the most cloud cover are March and December (Cloud cover 30).
The months with the least cloud cover are July, August and September (Cloud cover 5).
Average visibility in September
Dairyland, 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).





