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
With the onset of September, Snelling's average high-temperature slightly adjusts, moderately receding from August's very hot 97.9°F (36.6°C) to a hot 92.3°F (33.5°C). Significant dips from daytime highs mark the September nights, with a consistent average temperature of 62.2°F (16.8°C).Humidity
The average relative humidity in September is 36%.Rainfall
In Snelling, during September, the rain falls for 2.5 days and regularly aggregates up to 0.12" (3mm) of precipitation. Throughout the year, there are 62.9 rainfall days, and 11.69" (297mm) of precipitation is accumulated.Daylight
The average length of the day in September is 12h and 25min.On the first day of September, sunrise is at 6:32 am and sunset at 7:30 pm. On the last day of the month, sunrise is at 6:57 am and sunset at 6:45 pm PDT.
Sunshine
The average sunshine in September is 11.4h.UV index
The average daily maximum UV index in September is 6. A UV Index of 6 to 7 symbolizes a high health risk from unprotected exposure to Sun's UV rays for the ordinary person.Note: The UV index of 6 during September translates into the following guidance:
Embrace precautions and observe sun safety norms. Evasion of sunburn is a necessity. Limit your direct sun exposure, especially between 10 a.m. and 4 p.m., when UV radiation is strongest. Shade structures might not provide complete sun protection. Wearing a wide-brim hat can block approximately 50% of UV radiation, protecting the eyes.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How hot does it get 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 are sunrise and sunset in September in Snelling?
How long on average sun shines in September?
How high is the UV index in September?
Average temperature in September
Snelling, CA
- Average high temperature in September: 92.3°F
The warmest month (with the highest average high temperature) is July (99.1°F).
The month with the lowest average high temperature is December (55.9°F).
- Average low temperature in September: 62.2°F
The month with the highest average low temperature is July (65.5°F).
The coldest month (with the lowest average low temperature) is December (41.9°F).
Average pressure in September
Snelling, CA
- Average pressure in September: 29.93"Hg
The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in September
Snelling, CA
- Average wind speed in September: 6.3mph
The windiest month (with the highest average wind speed) is June (8.3mph).
The calmest months (with the lowest average wind speed) are January and November (5.2mph).
Average humidity in September
Snelling, CA
- Average humidity in September: 36%
The month with the highest relative humidity is January (70%).
The month with the lowest relative humidity is July (32%).
Average rainfall in September
Snelling, CA
- Average rainfall in September: 0.12"
The wettest month (with the highest rainfall) is March (2.44").
The driest month (with the least rainfall) is August (0.04").
Average rainfall days in September
Snelling, CA
- Average rainfall days in September: 2.5 days
The month with the highest number of rainy days is March (11.3 days).
The month with the least rainy days is June (1.1 days).
Average daylight in September /
Average sunshine in September
Snelling, CA
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 14h and 42min).
The month with the shortest days is December (Average daylight: 9h and 36min).
- Average sunshine in September: 11h and 2min
The month with the most sunshine is July (Average sunshine: 12h and 12min).
The month with the least sunshine is December (Average sunshine: 6h and 6min).
Average sunshine days in September
Snelling, CA
- Average sunshine days in September: 27.1 days
The month with the most sunshine days is August (28.8 days).
The month with the least sunshine days is March (18.8 days).
Average UV index in September
Snelling, CA
- Average UV index in September: 6
The months with the highest UV index are June, July and August (UV index 7).
The months with the lowest UV index are January, February, November and December (UV index 3).
Average cloud cover in September
Snelling, CA
- Average cloud cover in September: 6
The month with the most cloud cover is March (Cloud cover 32).
The months with the least cloud cover are July and August (Cloud cover 5).
Average visibility in September
Snelling, 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).
Snelling, California, USA
Weather forecast for your location
2. Allow the app to use your location