Contents
- Weather in September
- Frequently asked questions
- Average temperature in September
- Average pressure in September
- Average wind speed in September
- Average humidity in September
- Average rainfall in September
- Average rainfall days in September
- Average snowfall in September
- Average snowfall days in September
- Average daylight in September
- Average sunshine in September
- Average sunshine days in September
- Average UV index in September
- Average cloud cover in September
- Average visibility in September
Weather in September
Temperature
With the arrival of September, Douglas City notices a mild change in the average high-temperature, sliding from August's tropical 86.5°F (30.3°C) to a warm 79.7°F (26.5°C). Douglas City's September nights bring a significant temperature shift, averaging at a chilly 47.1°F (8.4°C).Humidity
In September, the average relative humidity is 55%.Rainfall
In Douglas City, in September, during 3.6 rainfall days, 0.39" (10mm) of precipitation is typically accumulated. Throughout the year, there are 99.6 rainfall days, and 25.04" (636mm) of precipitation is accumulated.Snowfall
June through October are months without snowfall in Douglas City.Daylight
The average length of the day in September is 12h and 27min.On the first day of September, sunrise is at 6:39 am and sunset at 7:43 pm. On the last day of the month, sunrise is at 7:08 am and sunset at 6:54 pm PDT.
Sunshine
In Douglas City, the average sunshine in September is 10.7h.UV index
The average daily maximum UV index in September is 4. A UV Index value of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV radiation for the ordinary person.Note: A typical high UV index of 4 in September suggests the following recommendations:
Act with care - The need to guard against sun damage is communicated. The best time to avoid the Sun's harmful UV radiation is during midday when it's most potent. Stay sun-safe with clothing that is both closely woven and worn loosely.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the average September temperature?
What is the average humidity in September?
How many days does it rain in September?
When it does not snow?
How many hours of daylight does Douglas City have in September?
When is the sunrise / sunset in September?
How many hours of sunshine does Douglas City have in September?
How high is the UV index in September?
Average temperature in September
Douglas City, CA
- Average high temperature in September: 79.7°F
The warmest months (with the highest average high temperature) are July and August (86.5°F).
The month with the lowest average high temperature is December (46°F).
- Average low temperature in September: 47.1°F
The month with the highest average low temperature is July (51.1°F).
The coldest month (with the lowest average low temperature) is December (30.2°F).
Average pressure in September
Douglas City, CA
- Average pressure in September: 29.95"Hg
The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is August (29.93"Hg).
Average wind speed in September
Douglas City, CA
- Average wind speed in September: 3.6mph
The windiest month (with the highest average wind speed) is April (4.8mph).
The calmest month (with the lowest average wind speed) is August (3.3mph).
Average humidity in September
Douglas City, CA
- Average humidity in September: 55%
The month with the highest relative humidity is March (81%).
The month with the lowest relative humidity is August (52%).
Average rainfall in September
Douglas City, CA
- Average rainfall in September: 0.39"
The wettest month (with the highest rainfall) is December (4.17").
The driest month (with the least rainfall) is July (0.16").
Average rainfall days in September
Douglas City, CA
- Average rainfall days in September: 3.6 days
The month with the highest number of rainy days is March (15.3 days).
The month with the least rainy days is August (2.3 days).
Average snowfall in September
Douglas City, CA
- Average snowfall in September: 0"
The month with the highest snowfall is February (7.52").
The months with the least snowfall are June, July, August, September and October (0").
Average snowfall days in September
Douglas City, CA
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (5 days).
The months with the least snowfall days are June, July, August, September and October (0 days).
Average daylight in September /
Average sunshine in September
Douglas City, CA
- Average daylight in September: 12h and 2min
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 18min).
- Average sunshine in September: 10h and 4min
The months with the most sunshine are July and August (Average sunshine: 11h and 54min).
The month with the least sunshine is December (Average sunshine: 4h and 42min).
Average sunshine days in September
Douglas City, CA
- Average sunshine days in September: 25.3 days
The month with the most sunshine days is July (26 days).
The month with the least sunshine days is March (13.6 days).
Average UV index in September
Douglas City, CA
- Average UV index in September: 4
The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in September
Douglas City, CA
- Average cloud cover in September: 15
The month with the most cloud cover is March (Cloud cover 52).
The month with the least cloud cover is August (Cloud cover 7).
Average visibility in September
Douglas City, CA
- Average visibility in September: 6mi
The months with the highest visibility are May, June, July, August, September and October (6mi).
The months with the lowest visibility are March and December (4mi).
Douglas City, California, USA
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