September weather forecastComptche, CA
September
Weather in September
The first month of the autumn, September, is still a refreshing month in Comptche, California, with an average temperature ranging between min 54.9°F (12.7°C) and max 67.5°F (19.7°C).Temperature
With average temperatures fluctuating between a high of 67.5°F (19.7°C) and a low of 54.9°F (12.7°C), September stands out as the warmest month.Humidity
In September, the average relative humidity is 76%.Rainfall
In Comptche, in September, it is raining for 2.1 days, with typically 0.16" (4mm) of accumulated precipitation. Throughout the year, there are 68.4 rainfall days, and 9.53" (242mm) of precipitation is accumulated.Snowfall
January, March through December are months without snowfall in Comptche.Daylight
In Comptche, the average length of the day in September is 12h and 26min.On the first day of the month, sunrise is at 6:43 am and sunset at 7:44 pm. On the last day of September, sunrise is at 7:10 am and sunset at 6:57 pm PDT.
Sunshine
In Comptche, California, the average sunshine in September is 10.7h.UV index
In Comptche, the average daily maximum UV index in September is 4. A UV Index reading of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV radiation for the ordinary person.Note: The UV index of 4 in September translates into these instructions:
Proceed with care. Light skin individuals may be exposed to burns in fewer than 30 minutes. During midday, the Sun's radiation is strongest, and it's advisable to reduce direct exposure. 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
Average temperature in September
Comptche, CA
- Average high temperature in September: 67.5°F
The warmest month (with the highest average high temperature) is September (67.5°F).
The months with the lowest average high temperature are February and December (54.3°F).
- Average low temperature in September: 54.9°F
The month with the highest average low temperature is August (55°F).
The coldest month (with the lowest average low temperature) is February (45.5°F).
Average pressure in September
Comptche, CA
- Average pressure in September: 29.94"Hg
The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is August (29.93"Hg).
Average wind speed in September
Comptche, CA
- Average wind speed in September: 8.3mph
The windiest month (with the highest average wind speed) is June (10.9mph).
The calmest month (with the lowest average wind speed) is August (7.8mph).
Average humidity in September
Comptche, CA
- Average humidity in September: 76%
The months with the highest relative humidity are March, May and August (80%).
The month with the lowest relative humidity is October (75%).
Average rainfall in September
Comptche, CA
- Average rainfall in September: 0.16"
The wettest month (with the highest rainfall) is December (1.77").
The driest months (with the least rainfall) are June, July and August (0.08").
Average rainfall days in September
Comptche, CA
- Average rainfall days in September: 2.1 days
The month with the highest number of rainy days is March (11.4 days).
The months with the least rainy days are June and August (1.8 days).
Average snowfall in September
Comptche, CA
- Average snowfall in September: 0"
The month with the highest snowfall is February (0.04").
The months with the least snowfall are January, March, April, May, June, July, August, September, October, November and December (0").
Average snowfall days in September
Comptche, CA
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (0.1 days).
The months with the least snowfall days are January, March, April, May, June, July, August, September, October, November and December (0 days).
Average daylight in September /
Average sunshine in September
Comptche, CA
- Average daylight in September: 12h and 24min
The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 30min).
- Average sunshine in September: 10h and 42min
The months with the most sunshine are July and August (Average sunshine: 11h and 48min).
The month with the least sunshine is December (Average sunshine: 5h and 30min).
Average sunshine days in September
Comptche, CA
- Average sunshine days in September: 27.7 days
The month with the most sunshine days is July (28.2 days).
The month with the least sunshine days is March (18.4 days).
Average UV index in September
Comptche, CA
- Average UV index in September: 4
The months with the highest UV index are June, July and August (UV index 5).
The months with the lowest UV index are January, February, November and December (UV index 3).
Average cloud cover in September
Comptche, CA
- Average cloud cover in September: 12
The month with the most cloud cover is March (Cloud cover 41).
The month with the least cloud cover is July (Cloud cover 10).
Average visibility in September
Comptche, 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).





