September weather forecastMono Vista, CA
September
Weather in September
September, the first month of the autumn in Mono Vista, is still a warm month, with an average temperature ranging between max 81.9°F (27.7°C) and min 56.1°F (13.4°C).Temperature
The arrival of September corresponds with a minor reduction in the average high-temperature, down from August's tropical 87.4°F (30.8°C) to a moderately hot 81.9°F (27.7°C). September witnesses a substantial contrast between the daytime highs and the average low of 56.1°F (13.4°C).Humidity
In Mono Vista, California, the average relative humidity in September is 36%.Rainfall
In Mono Vista, in September, during 2.9 rainfall days, 0.24" (6mm) of precipitation is typically accumulated. In Mono Vista, during the entire year, the rain falls for 77.4 days and collects up to 29.06" (738mm) of precipitation.Snowfall
In Mono Vista, snow does not fall in June through October.Daylight
The average length of the day in September is 12h and 25min.On the first day of September, sunrise is at 6:31 am and sunset at 7:29 pm. On the last day of the month, sunrise is at 6:56 am and sunset at 6:44 pm PDT.
Sunshine
In Mono Vista, the average sunshine in September is 11.3h.UV index
In September, the average daily maximum UV index is 5. A UV Index value of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV rays for average individuals.Note: A maximum daily UV index of 5 during September morphs into the following directions:
Take measures. Individuals with light skin might experience burns in under 30 minutes. Being exposed to the midday Sun can have harmful effects due to strong UV radiation; always take precautions. For excellent sun protection for the eyes, ears, face, and neck, consider a wide-brim hat.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Mono Vista, CA
- Average high temperature in September: 81.9°F
The warmest month (with the highest average high temperature) is July (88.3°F).
The month with the lowest average high temperature is December (50.4°F).
- Average low temperature in September: 56.1°F
The month with the highest average low temperature is July (60.4°F).
The coldest month (with the lowest average low temperature) is December (34.3°F).
Average pressure in September
Mono Vista, CA
- Average pressure in September: 29.93"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in September
Mono Vista, CA
- Average wind speed in September: 5.2mph
The windiest months (with the highest average wind speed) are February and March (5.8mph).
The calmest month (with the lowest average wind speed) is November (4.8mph).
Average humidity in September
Mono Vista, CA
- Average humidity in September: 36%
The month with the highest relative humidity is March (70%).
The months with the lowest relative humidity are July and August (33%).
Average rainfall in September
Mono Vista, CA
- Average rainfall in September: 0.24"
The wettest month (with the highest rainfall) is March (5.47").
The driest months (with the least rainfall) are July and August (0.04").
Average rainfall days in September
Mono Vista, CA
- Average rainfall days in September: 2.9 days
The month with the highest number of rainy days is March (13.3 days).
The month with the least rainy days is August (1.6 days).
Average snowfall in September
Mono Vista, CA
- Average snowfall in September: 0"
The month with the highest snowfall is February (12.87").
The months with the least snowfall are June, July, August, September and October (0").
Average snowfall days in September
Mono Vista, CA
- Average snowfall days in September: 0 days
The months with the highest number of snowfall days are February and March (3.7 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
Mono Vista, CA
- Average daylight in September: 12h and 24min
The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 36min).
- Average sunshine in September: 11h and 18min
The month with the most sunshine is July (Average sunshine: 12h and 6min).
The month with the least sunshine is December (Average sunshine: 6h and 6min).
Average sunshine days in September
Mono Vista, CA
- Average sunshine days in September: 26.6 days
The month with the most sunshine days is August (28.3 days).
The month with the least sunshine days is March (15.6 days).
Average UV index in September
Mono Vista, CA
- Average UV index in September: 5
The month with the highest UV index is July (UV index 7).
The months with the lowest UV index are February and November (UV index 2).
Average cloud cover in September
Mono Vista, CA
- Average cloud cover in September: 7
The month with the most cloud cover is March (Cloud cover 35).
The months with the least cloud cover are July and August (Cloud cover 5).
Average visibility in September
Mono Vista, 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).
