September weather forecastTrona, CA
September
Weather in September
September, the first month of the autumn in Trona, is also a hot month, with an average temperature fluctuating between 86.5°F (30.3°C) and 65.5°F (18.6°C).Temperature
The onset of September aligns with a soft reduction in the average high-temperature, gently falling from 93.7°F (34.3°C) in August to a still tropical 86.5°F (30.3°C). Trona experiences an average low-temperature of 65.5°F (18.6°C) in the month of September.Humidity
In Trona, the average relative humidity in September is 23%.Rainfall
In Trona, in September, it is raining for 2.1 days, with typically 0.16" (4mm) of accumulated precipitation. Throughout the year, there are 34.1 rainfall days, and 2.64" (67mm) of precipitation is accumulated.Snowfall
February through October and December are months without snowfall.Daylight
In September, the average length of the day is 12h and 23min.On the first day of September, sunrise is at 6:22 am and sunset at 7:16 pm. On the last day of the month, sunrise is at 6:44 am and sunset at 6:34 pm PDT.
Sunshine
In September, the average sunshine is 10.8h.UV index
In September, the average daily maximum UV index is 6. A UV Index value of 6 to 7 symbolizes a high threat to health from exposure to the Sun's UV radiation for the average person.Note: The maximum daily UV index of 6 during September translates into the following directions:
Sustain precautions and conform to sun safety norms. Preventing sunburn is necessary. The Sun emits the most powerful UV radiation between 10 a.m. and 4 p.m. Try to avoid direct sunlight during this period. Employ a hat with a wide brim for robust protection, cutting UV exposure by half.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Trona, CA
- Average high temperature in September: 86.5°F
The warmest month (with the highest average high temperature) is July (95°F).
The month with the lowest average high temperature is December (52°F).
- Average low temperature in September: 65.5°F
The month with the highest average low temperature is July (72.1°F).
The coldest month (with the lowest average low temperature) is December (37°F).
Average pressure in September
Trona, CA
- Average pressure in September: 29.87"Hg
The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.82"Hg).
Average wind speed in September
Trona, CA
- Average wind speed in September: 7.1mph
The windiest month (with the highest average wind speed) is May (9.1mph).
The calmest month (with the lowest average wind speed) is January (5.7mph).
Average humidity in September
Trona, CA
- Average humidity in September: 23%
The months with the highest relative humidity are January and December (47%).
The month with the lowest relative humidity is August (20%).
Average rainfall in September
Trona, CA
- Average rainfall in September: 0.16"
The wettest month (with the highest rainfall) is January (0.35").
The driest month (with the least rainfall) is June (0.08").
Average rainfall days in September
Trona, CA
- Average rainfall days in September: 2.1 days
The month with the highest number of rainy days is March (4.3 days).
The month with the least rainy days is June (1.3 days).
Average snowfall in September
Trona, CA
- Average snowfall in September: 0"
The month with the highest snowfall is November (0.16").
The months with the least snowfall are February, March, April, May, June, July, August, September, October and December (0").
Average snowfall days in September
Trona, CA
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (0.3 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).
Average daylight in September /
Average sunshine in September
Trona, CA
- Average daylight in September: 12h and 24min
The month with the longest days is June (Average daylight: 14h and 30min).
The month with the shortest days is December (Average daylight: 9h and 48min).
- Average sunshine in September: 10h and 48min
The month with the most sunshine is June (Average sunshine: 12h and 12min).
The months with the least sunshine are January and December (Average sunshine: 7h and 6min).
Average sunshine days in September
Trona, CA
- Average sunshine days in September: 26 days
The month with the most sunshine days is December (28.1 days).
The month with the least sunshine days is July (23.6 days).
Average UV index in September
Trona, CA
- Average UV index in September: 6
The month with the highest UV index is July (UV index 8).
The months with the lowest UV index are January, February, November and December (UV index 3).
Average cloud cover in September
Trona, CA
- Average cloud cover in September: 5
The months with the most cloud cover are January, March and December (Cloud cover 17).
The months with the least cloud cover are June, August and September (Cloud cover 5).
Average visibility in September
Trona, 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).
