September weather forecastPlaster City, CA
September
Weather in September
September, the first month of the autumn in Plaster City, is still a torrid month, with temperature in the range of an average low of 78.6°F (25.9°C) and an average high of 97.7°F (36.5°C).Temperature
A modest decline in the average high-temperature is seen during September, decreasing from an extremely hot 104.9°F (40.5°C) in August to a very hot 97.7°F (36.5°C). Plaster City sees an average low-temperature of 78.6°F (25.9°C) during September.Humidity
The average relative humidity in September is 26%.Rainfall
In Plaster City, during September, the rain falls for 4.5 days and regularly aggregates up to 0.35" (9mm) of precipitation. In Plaster City, during the entire year, the rain falls for 34.3 days and collects up to 3.27" (83mm) of precipitation.Daylight
In Plaster City, the average length of the day in September is 12h and 22min.On the first day of September, sunrise is at 6:18 am and sunset at 7:07 pm. On the last day of the month, sunrise is at 6:37 am and sunset at 6:28 pm PDT.
Sunshine
In Plaster City, the average sunshine in September is 10.2h.UV index
In September, the average daily maximum UV index is 7. A UV Index of 6 to 7 symbolizes a high health hazard from exposure to the Sun's UV radiation for the ordinary person.Note: In September, the maximum UV index of 7 transforms into these recommendations:
Use measures and accept sun safety conventions. Guarding against skin and eye trauma is of high priority. Remember that the sun's UV radiation is strongest between 10 a.m. and 4 p.m. Make an effort to avoid direct sun exposure during these hours. Wearing a wide-brim hat can block approximately 50% of UV radiation, protecting the eyes.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Plaster City, CA
- Average high temperature in September: 97.7°F
The warmest month (with the highest average high temperature) is July (105.4°F).
The month with the lowest average high temperature is December (65.8°F).
- Average low temperature in September: 78.6°F
The month with the highest average low temperature is August (84.4°F).
The coldest month (with the lowest average low temperature) is January (48.9°F).
Average pressure in September
Plaster City, CA
- Average pressure in September: 29.82"Hg
The month with the highest atmospheric pressure is January (30.08"Hg).
The month with the lowest atmospheric pressure is June (29.79"Hg).
Average wind speed in September
Plaster City, CA
- Average wind speed in September: 5.8mph
The windiest month (with the highest average wind speed) is April (7.8mph).
The calmest month (with the lowest average wind speed) is January (5mph).
Average humidity in September
Plaster City, CA
- Average humidity in September: 26%
The months with the highest relative humidity are January and December (40%).
The month with the lowest relative humidity is June (22%).
Average rainfall in September
Plaster City, CA
- Average rainfall in September: 0.35"
The wettest month (with the highest rainfall) is July (0.75").
The driest month (with the least rainfall) is May (0.04").
Average rainfall days in September
Plaster City, CA
- Average rainfall days in September: 4.5 days
The month with the highest number of rainy days is July (7.2 days).
The month with the least rainy days is May (1.1 days).
Average daylight in September /
Average sunshine in September
Plaster City, CA
- Average daylight in September: 12h and 24min
The month with the longest days is June (Average daylight: 14h and 18min).
The month with the shortest days is December (Average daylight: 10h and 0min).
- Average sunshine in September: 10h and 12min
The month with the most sunshine is June (Average sunshine: 12h and 12min).
The month with the least sunshine is December (Average sunshine: 7h and 6min).
Average sunshine days in September
Plaster City, CA
- Average sunshine days in September: 24.2 days
The month with the most sunshine days is May (29.7 days).
The month with the least sunshine days is July (19.3 days).
Average UV index in September
Plaster City, CA
- Average UV index in September: 7
The month with the highest UV index is July (UV index 9).
The month with the lowest UV index is December (UV index 4).
Average cloud cover in September
Plaster City, CA
- Average cloud cover in September: 7
The month with the most cloud cover is December (Cloud cover 17).
The month with the least cloud cover is June (Cloud cover 4).
Average visibility in September
Plaster City, 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).
