Contents
- Weather in September
- Frequently asked questions
- Average temperature in September
- Average pressure in September
- Average wind speed in September
- Average humidity in September
- Average rainfall in September
- Average rainfall days in September
- Average snowfall in September
- Average snowfall days in September
- Average daylight in September
- Average sunshine in September
- Average sunshine days in September
- Average UV index in September
- Average cloud cover in September
- Average visibility in September
Weather in September
Temperature
Transition into September subtly marks a drop in the average high-temperature, moderately moving from 94.8°F (34.9°C) in August to a still hot 88.7°F (31.5°C). The anticipated average low-temperature for September in Boron, California, a comfortable 65.1°F (18.4°C), shows a substantial deviation from the daytime maximums.Humidity
In September, the average relative humidity is 28%.Rainfall
In Boron, California, in September, during 1.6 rainfall days, 0.12" (3mm) of precipitation is typically accumulated. Throughout the year, there are 39.4 rainfall days, and 3.86" (98mm) of precipitation is accumulated.Snowfall
February through October are months without snowfall in Boron.Daylight
The average length of the day in September in Boron is 12h and 23min.On the first day of the month, sunrise is at 6:23 am and sunset at 7:16 pm. On the last day of September, sunrise is at 6:45 am and sunset at 6:35 pm PDT.
Sunshine
In Boron, the average sunshine in September is 10.8h.UV index
The average daily maximum UV index in September in Boron is 6. A UV Index of 6 to 7 symbolizes a high health vulnerability from exposure to the Sun's UV rays for the ordinary person.Note: The daily high UV index of 6 in September translates into this advice:
Exercise precautions and adapt sun safety practices. Defence against skin and eye affliction is paramount. The hours from 10 a.m. to 4 p.m. have the most intense UV radiation. As much as possible, limit direct sun exposure during this period. Consider a wide-brim hat essential for effective sun defense covering your face, neck, and eyes.
Frequently asked questions
How hot does it get in Boron in September?
What is the average humidity in September in Boron?
How many days does it rain in September in Boron?
When it does not snow in Boron?
How many hours of daylight does Boron have in September?
What time are sunrise and sunset in September in Boron?
How many hours of sunshine does Boron have in September?
What is the UV index intensity in September in Boron?
Average temperature in September
Boron, CA
- Average high temperature in September: 88.7°F
The warmest month (with the highest average high temperature) is July (95.9°F).
The month with the lowest average high temperature is December (55°F).
- Average low temperature in September: 65.1°F
The month with the highest average low temperature is August (70.3°F).
The coldest month (with the lowest average low temperature) is December (38.1°F).
Average pressure in September
Boron, CA
- Average pressure in September: 29.88"Hg
The month with the highest atmospheric pressure is January (30.12"Hg).
The month with the lowest atmospheric pressure is June (29.84"Hg).
Average wind speed in September
Boron, CA
- Average wind speed in September: 8.6mph
The windiest month (with the highest average wind speed) is May (11.8mph).
The calmest month (with the lowest average wind speed) is January (6.5mph).
Average humidity in September
Boron, CA
- Average humidity in September: 28%
The month with the highest relative humidity is December (51%).
The month with the lowest relative humidity is August (24%).
Average rainfall in September
Boron, CA
- Average rainfall in September: 0.12"
The wettest month (with the highest rainfall) is December (0.83").
The driest month (with the least rainfall) is June (0.04").
Average rainfall days in September
Boron, CA
- Average rainfall days in September: 1.6 days
The month with the highest number of rainy days is March (5.5 days).
The month with the least rainy days is June (0.9 days).
Average snowfall in September
Boron, CA
- Average snowfall in September: 0"
The month with the highest snowfall is November (0.71").
The months with the least snowfall are February, March, April, May, June, July, August, September and October (0").
Average snowfall days in September
Boron, 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 March, April, May, June, July, August, September and October (0 days).
Average daylight in September /
Average sunshine in September
Boron, CA
- Average daylight in September: 12h and 2min
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 5min
The months with the most sunshine are June and July (Average sunshine: 12h and 6min).
The month with the least sunshine is January (Average sunshine: 7h and 0min).
Average sunshine days in September
Boron, CA
- Average sunshine days in September: 26 days
The month with the most sunshine days is June (28.2 days).
The month with the least sunshine days is February (22.8 days).
Average UV index in September
Boron, 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
Boron, CA
- Average cloud cover in September: 5
The months with the most cloud cover are March and December (Cloud cover 19).
The months with the least cloud cover are June, August and September (Cloud cover 5).
Average visibility in September
Boron, 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).
Boron, California, USA
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