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 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
The advent of September brings a slight shift in average high-temperature, moving from a scorching 106.7°F (41.5°C) in August to a sweltering 99.9°F (37.7°C). Throughout September, Heber's nights cool down to an average of 80.2°F (26.8°C).Humidity
The average relative humidity in September in Heber is 25%.Rainfall
In Heber, in September, during 3 rainfall days, 0.28" (7mm) of precipitation is typically accumulated. Throughout the year, there are 24.1 rainfall days, and 2.44" (62mm) of precipitation is accumulated.Daylight
The average length of the day in September is 12h and 22min.On the first day of September, sunrise is at 6:17 am and sunset at 7:06 pm. On the last day of the month, sunrise is at 6:36 am and sunset at 6:27 pm PDT.
Sunshine
In September, the average sunshine is 10.2h.UV index
The average daily maximum UV index in September is 8. A UV Index estimate of 8 to 10 represents a very high threat to health from unprotected exposure to Sun's UV rays for average individuals.Note: A maximum high UV index of 8 in September translates into the following recommendations:
Ensure you're protected; unprotected eyes and skin can get hurt in moments. Stay in the shade and avoid direct Sun exposure from 10 a.m. to 4 p.m., a time when UV radiation is at its strongest, and remember that parasols or canopies do not offer full protection. Combat UV radiation's detrimental effects with sun-safe clothing and UV-blocking eyewear.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How hot is it in September?
What is the average humidity in September?
How much does it rain in September?
What is the average length of the day in September?
When is the sunrise / sunset in September?
How long on average sun shines in September?
What is the UV index intensity in September?
Average temperature in September
Heber, CA
- Average high temperature in September: 99.9°F
The warmest month (with the highest average high temperature) is July (107.2°F).
The month with the lowest average high temperature is December (67.5°F).
- Average low temperature in September: 80.2°F
The month with the highest average low temperature is August (86.4°F).
The coldest month (with the lowest average low temperature) is January (50.4°F).
Average pressure in September
Heber, CA
- Average pressure in September: 29.81"Hg
The month with the highest atmospheric pressure is January (30.07"Hg).
The month with the lowest atmospheric pressure is June (29.78"Hg).
Average wind speed in September
Heber, CA
- Average wind speed in September: 5.7mph
The windiest month (with the highest average wind speed) is April (7.2mph).
The calmest month (with the lowest average wind speed) is August (5.3mph).
Average humidity in September
Heber, CA
- Average humidity in September: 25%
The months with the highest relative humidity are January and December (38%).
The month with the lowest relative humidity is June (20%).
Average rainfall in September
Heber, CA
- Average rainfall in September: 0.28"
The wettest month (with the highest rainfall) is July (0.43").
The driest month (with the least rainfall) is May (0.04").
Average rainfall days in September
Heber, CA
- Average rainfall days in September: 3 days
The month with the highest number of rainy days is July (4.8 days).
The month with the least rainy days is May (0.8 days).
Average daylight in September /
Average sunshine in September
Heber, CA
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 14h and 18min).
The month with the shortest days is December (Average daylight: 10h and 0min).
- Average sunshine in September: 10h and 1min
The months with the most sunshine are June, July and August (Average sunshine: 12h and 6min).
The month with the least sunshine is December (Average sunshine: 7h and 6min).
Average sunshine days in September
Heber, CA
- Average sunshine days in September: 26.2 days
The month with the most sunshine days is May (30.1 days).
The month with the least sunshine days is July (23.9 days).
Average UV index in September
Heber, CA
- Average UV index in September: 8
The months with the highest UV index are June, July and August (UV index 9).
The months with the lowest UV index are November and December (UV index 4).
Average cloud cover in September
Heber, CA
- Average cloud cover in September: 7
The month with the most cloud cover is December (Cloud cover 17).
The month with the least cloud cover is June (Cloud cover 5).
Average visibility in September
Heber, 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).
Heber, California, USA
Weather forecast for your location
2. Allow the app to use your location