September weather forecastButte Meadows, CA
September
Weather in September
September, the first month of the autumn in Butte Meadows, is also a moderately hot month, with an average temperature fluctuating between 78.8°F (26°C) and 50.5°F (10.3°C).Temperature
The transition into September subtly indicates a reduction in the average high-temperature, down to a still moderately hot 78.8°F (26°C) from August's 84.9°F (29.4°C). In September, Butte Meadows experiences a significant drop from daily zeniths to an average nighttime temperature of 50.5°F (10.3°C).Humidity
The average relative humidity in September is 44%.Rainfall
In Butte Meadows, in September, during 4.3 rainfall days, 0.55" (14mm) of precipitation is typically accumulated. In Butte Meadows, during the entire year, the rain falls for 115.1 days and collects up to 45.39" (1153mm) of precipitation.Snowfall
In Butte Meadows, snow does not fall in May through October.Daylight
In September, the average length of the day is 12h and 26min.On the first day of September, sunrise is at 6:34 am and sunset at 7:37 pm. On the last day of the month, sunrise is at 7:02 am and sunset at 6:49 pm PDT.
Sunshine
In September, the average sunshine is 11.1h.UV index
The average daily maximum UV index in September is 4. A UV Index estimate of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV radiation for the average person.Note: The maximum UV index of 4 during September leads to these instructions:
Prioritize safety - Suggestions to prevent sun damage are offered. Avoiding direct sun during mid-day hours can prevent harmful UV radiation exposure. Fend off the sun's harsh rays with appropriate clothing, a wide-brim hat, and UV-protective sunglasses.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Butte Meadows, CA
- Average high temperature in September: 78.8°F
The warmest month (with the highest average high temperature) is July (86.2°F).
The month with the lowest average high temperature is December (44.4°F).
- Average low temperature in September: 50.5°F
The month with the highest average low temperature is July (55.4°F).
The coldest month (with the lowest average low temperature) is December (29.3°F).
Average pressure in September
Butte Meadows, CA
- Average pressure in September: 29.93"Hg
The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).
Average wind speed in September
Butte Meadows, CA
- Average wind speed in September: 5.6mph
The windiest months (with the highest average wind speed) are January and February (6.5mph).
The calmest month (with the lowest average wind speed) is August (5.3mph).
Average humidity in September
Butte Meadows, CA
- Average humidity in September: 44%
The month with the highest relative humidity is March (80%).
The month with the lowest relative humidity is July (39%).
Average rainfall in September
Butte Meadows, CA
- Average rainfall in September: 0.55"
The wettest month (with the highest rainfall) is March (8.66").
The driest month (with the least rainfall) is July (0.16").
Average rainfall days in September
Butte Meadows, CA
- Average rainfall days in September: 4.3 days
The month with the highest number of rainy days is March (17.3 days).
The month with the least rainy days is July (2.5 days).
Average snowfall in September
Butte Meadows, CA
- Average snowfall in September: 0"
The month with the highest snowfall is February (6.38").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in September
Butte Meadows, CA
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (3.3 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in September /
Average sunshine in September
Butte Meadows, CA
- Average daylight in September: 12h and 24min
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 24min).
- Average sunshine in September: 11h and 6min
The month with the most sunshine is July (Average sunshine: 12h and 6min).
The months with the least sunshine are January and December (Average sunshine: 5h and 24min).
Average sunshine days in September
Butte Meadows, CA
- Average sunshine days in September: 25 days
The months with the most sunshine days are July and August (27.5 days).
The month with the least sunshine days is March (12 days).
Average UV index in September
Butte Meadows, 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
Butte Meadows, CA
- Average cloud cover in September: 11
The month with the most cloud cover is March (Cloud cover 47).
The month with the least cloud cover is July (Cloud cover 5).
Average visibility in September
Butte Meadows, CA
- Average visibility in September: 6mi
The months with the highest visibility are January, February, April, May, June, July, August, September, October, November and December (6mi).
The month with the lowest visibility is March (5mi).
