September weather forecastChilcoot, CA
September
Weather in September
September, the first month of the autumn in Chilcoot, is also a moderately hot month, with an average temperature varying between 42.3°F (5.7°C) and 73.8°F (23.2°C).Temperature
The beginning of September brings a minor change in the average high-temperature, shifting from 81.1°F (27.3°C) in August to a still warm 73.8°F (23.2°C). Chilcoot's nights in September are distinguished by a pronounced temperature shift from the day, with an average low of 42.3°F (5.7°C).Humidity
The average relative humidity in September in Chilcoot is 46%.Rainfall
In Chilcoot, California, in September, it is raining for 4.5 days, with typically 0.43" (11mm) of accumulated precipitation. In Chilcoot, during the entire year, the rain falls for 80.1 days and collects up to 22.95" (583mm) of precipitation.Snowfall
Months with snowfall in Chilcoot are January through June, September through December. September is the first month it typically snows. Throughout September, in the average 0.4 snowfall days, it receives 1.02" (26mm) of snow. In Chilcoot, during the entire year, snow falls for 69.3 days and aggregates up to 103.5" (2629mm) of snow.Daylight
The average length of the day in September is 12h and 26min.On the first day of the month, sunrise is at 6:29 am and sunset at 7:31 pm. On the last day of September, sunrise is at 6:56 am and sunset at 6:43 pm PDT.
Sunshine
The average sunshine in September in Chilcoot is 11h.UV index
In September, the average daily maximum UV index is 3. A UV Index reading of 3 to 5 represents a moderate health risk from exposure to the Sun's UV radiation for ordinary individuals.Note: The maximum daily UV index of 3 in September converts into the following recommendations:
Safety measures are advised. Light-skinned individuals may experience burns in under half an hour. The Sun is most powerful around mid-day, so it's a good practice to reduce direct exposure. To mitigate harm from sun exposure, pick sunglasses offering UVA and UVB defense. Be careful! The Sun's UV radiation can nearly be doubled by the reflective quality of snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Chilcoot, CA
- Average high temperature in September: 73.8°F
The warmest month (with the highest average high temperature) is July (82.9°F).
The month with the lowest average high temperature is December (37.2°F).
- Average low temperature in September: 42.3°F
The month with the highest average low temperature is July (47.5°F).
The coldest month (with the lowest average low temperature) is December (21.6°F).
Average pressure in September
Chilcoot, CA
- Average pressure in September: 29.93"Hg
The month with the highest atmospheric pressure is January (30.19"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).
Average wind speed in September
Chilcoot, CA
- Average wind speed in September: 5.2mph
The windiest month (with the highest average wind speed) is March (6.6mph).
The calmest months (with the lowest average wind speed) are August and September (5.2mph).
Average humidity in September
Chilcoot, CA
- Average humidity in September: 46%
The months with the highest relative humidity are January and March (81%).
The months with the lowest relative humidity are July and August (40%).
Average rainfall in September
Chilcoot, CA
- Average rainfall in September: 0.43"
The wettest month (with the highest rainfall) is March (4.02").
The driest month (with the least rainfall) is August (0.2").
Average rainfall days in September
Chilcoot, CA
- Average rainfall days in September: 4.5 days
The month with the highest number of rainy days is May (11.8 days).
The month with the least rainy days is July (3.3 days).
Average snowfall in September
Chilcoot, CA
- Average snowfall in September: 1.02"
The month with the highest snowfall is December (22.52").
The months with the least snowfall are July and August (0").
Average snowfall days in September
Chilcoot, CA
- Average snowfall days in September: 0.4 days
The month with the highest number of snowfall days is March (14.7 days).
The months with the least snowfall days are July and August (0 days).
Average daylight in September /
Average sunshine in September
Chilcoot, 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 24min).
- Average sunshine in September: 11h
The month with the most sunshine is July (Average sunshine: 12h).
The month with the least sunshine is January (Average sunshine: 5h).
Average sunshine days in September
Chilcoot, CA
- Average sunshine days in September: 25 days
The month with the most sunshine days is August (26 days).
The month with the least sunshine days is March (11.8 days).
Average UV index in September
Chilcoot, CA
- Average UV index in September: 3
The months with the highest UV index are June, July and August (UV index 5).
The month with the lowest UV index is November (UV index 1).
Average cloud cover in September
Chilcoot, CA
- Average cloud cover in September: 12
The month with the most cloud cover is March (Cloud cover 47).
The month with the least cloud cover is July (Cloud cover 7).
Average visibility in September
Chilcoot, CA
- Average visibility in September: 6mi
The months with the highest visibility are May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January and December (4mi).
