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
As September arrives, Whitmore's weather displays a minor decrease in high-temperatures, transitioning from August's moderately hot 85.8°F (29.9°C) to a still warm 78.8°F (26°C). Whitmore experiences a substantial decline from the daytime high temperatures in September, settling on an average low of 48°F (8.9°C).Humidity
In September, the average relative humidity is 45%.Rainfall
In Whitmore, in September, during 4.1 rainfall days, 0.39" (10mm) of precipitation is typically accumulated. Throughout the year, there are 105 rainfall days, and 24.69" (627mm) of precipitation is accumulated.Snowfall
June through September are months without snowfall.Daylight
In Whitmore, California, the average length of the day in September is 12h and 27min.On the first day of September, sunrise is at 6:35 am and sunset at 7:39 pm. On the last day of the month, sunrise is at 7:04 am and sunset at 6:50 pm PDT.
Sunshine
The average sunshine in September is 11.1h.UV index
In September, the average daily maximum UV index is 4. A UV Index value of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV radiation for the ordinary person.Note: An average maximum UV index of 4 in September leads to these recommendations:
Heed the precautions - Suggestions to avoid sunburn are made. UV radiation is strongest from the Sun during midday; protect yourself by staying in shaded areas. Sunglasses that ward off UVA and UVB rays play a pivotal role in reducing solar eye damage. Mark this! Snow reflection can nearly double the UV radiation intensity from the Sun.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are September temperatures?
What is the average humidity in September?
How many days does it rain in September?
When it does not snow?
Does it snow in September?
How many hours of daylight does Whitmore have in September?
When is the sunrise / sunset in September?
How many hours of sunshine does Whitmore have in September?
What is the UV index reading in September?
Average temperature in September
Whitmore, CA
- Average high temperature in September: 78.8°F
The warmest month (with the highest average high temperature) is July (86.7°F).
The month with the lowest average high temperature is December (43.3°F).
- Average low temperature in September: 48°F
The month with the highest average low temperature is July (53.1°F).
The coldest month (with the lowest average low temperature) is December (27.9°F).
Average pressure in September
Whitmore, CA
- Average pressure in September: 29.94"Hg
The month with the highest atmospheric pressure is January (30.18"Hg).
The months with the lowest atmospheric pressure are June and August (29.92"Hg).
Average wind speed in September
Whitmore, CA
- Average wind speed in September: 4.8mph
The windiest month (with the highest average wind speed) is March (5.8mph).
The calmest month (with the lowest average wind speed) is August (4.5mph).
Average humidity in September
Whitmore, CA
- Average humidity in September: 45%
The months with the highest relative humidity are January and March (79%).
The months with the lowest relative humidity are July and August (40%).
Average rainfall in September
Whitmore, CA
- Average rainfall in September: 0.39"
The wettest month (with the highest rainfall) is March (4.45").
The driest month (with the least rainfall) is July (0.16").
Average rainfall days in September
Whitmore, CA
- Average rainfall days in September: 4.1 days
The month with the highest number of rainy days is April (14.5 days).
The month with the least rainy days is August (2.3 days).
Average snowfall in September
Whitmore, CA
- Average snowfall in September: 0"
The month with the highest snowfall is March (10.43").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Whitmore, CA
- Average snowfall days in September: 0.1 days
The month with the highest number of snowfall days is March (8 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in September /
Average sunshine in September
Whitmore, CA
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 18min).
- Average sunshine in September: 11h and 1min
The month with the most sunshine is July (Average sunshine: 12h and 6min).
The month with the least sunshine is December (Average sunshine: 5h and 42min).
Average sunshine days in September
Whitmore, CA
- Average sunshine days in September: 24.7 days
The month with the most sunshine days is August (26 days).
The month with the least sunshine days is March (11.3 days).
Average UV index in September
Whitmore, CA
- Average UV index in September: 4
The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in September
Whitmore, CA
- Average cloud cover in September: 10
The month with the most cloud cover is March (Cloud cover 42).
The months with the least cloud cover are July and August (Cloud cover 6).
Average visibility in September
Whitmore, CA
- Average visibility in September: 6mi
The months with the highest visibility are February, April, May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January, March and December (5mi).
Whitmore, California, USA
Weather forecast for your location
2. Allow the app to use your location