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
The onset of September aligns with a soft reduction in the average high-temperature, gently falling from a hot 91°F (32.8°C) in August to a warm 85.1°F (29.5°C). Piedra witnesses a consistent, sharp contrast from the daytime highs, with an average low-temperature of 57.7°F (14.3°C) throughout September.Humidity
The average relative humidity in September in Piedra is 33%.Rainfall
In September, the rain falls for 2.9 days. Throughout September, 0.24" (6mm) of precipitation is accumulated. In Piedra, during the entire year, the rain falls for 67.6 days and collects up to 17.52" (445mm) of precipitation.Snowfall
In Piedra, snow does not fall in May through October.Daylight
The average length of the day in September is 12h and 24min.On the first day of the month, sunrise is at 6:29 am and sunset at 7:25 pm. On the last day of September, sunrise is at 6:52 am and sunset at 6:41 pm PDT.
Sunshine
In September, the average sunshine in Piedra is 11.1h.UV index
In Piedra, the average daily maximum UV index in September is 5. A UV Index estimate of 3 to 5 represents a medium vulnerability from unprotected exposure to Sun's UV rays for average individuals.Note: The maximum UV index, 5 during September, leads to the following recommendations:
Prioritize safety - Recommendations to avert sunburn are shared. Considering the Sun's intensity during midday, it's wise to minimize direct exposure. Employ a wide-brim hat for potent defense against up to 50% of UV rays.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How hot is it in Piedra in September?
What is the average humidity in September in Piedra?
How much does it rain in Piedra in September?
When it does not snow in Piedra?
How many hours of daylight does Piedra have in September?
When are sunrise and sunset in September in Piedra?
How many hours of sunshine does Piedra have in September?
What is the UV index reading in September in Piedra?
Average temperature in September
Piedra, CA
- Average high temperature in September: 85.1°F
The warmest month (with the highest average high temperature) is July (91.9°F).
The month with the lowest average high temperature is December (52.3°F).
- Average low temperature in September: 57.7°F
The month with the highest average low temperature is July (61.5°F).
The coldest month (with the lowest average low temperature) is December (36.1°F).
Average pressure in September
Piedra, CA
- Average pressure in September: 29.92"Hg
The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.88"Hg).
Average wind speed in September
Piedra, CA
- Average wind speed in September: 4.1mph
The windiest months (with the highest average wind speed) are March and June (4.5mph).
The calmest month (with the lowest average wind speed) is December (3.4mph).
Average humidity in September
Piedra, CA
- Average humidity in September: 33%
The months with the highest relative humidity are January and February (64%).
The month with the lowest relative humidity is August (30%).
Average rainfall in September
Piedra, CA
- Average rainfall in September: 0.24"
The wettest month (with the highest rainfall) is February (3.62").
The driest months (with the least rainfall) are June and August (0.12").
Average rainfall days in September
Piedra, CA
- Average rainfall days in September: 2.9 days
The month with the highest number of rainy days is March (11.1 days).
The month with the least rainy days is August (1.6 days).
Average snowfall in September
Piedra, CA
- Average snowfall in September: 0"
The month with the highest snowfall is February (1.77").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in September
Piedra, CA
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (1.8 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in September /
Average sunshine in September
Piedra, CA
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 14h and 36min).
The month with the shortest days is December (Average daylight: 9h and 42min).
- Average sunshine in September: 11h and 1min
The month with the most sunshine is June (Average sunshine: 12h and 12min).
The months with the least sunshine are February and December (Average sunshine: 6h and 42min).
Average sunshine days in September
Piedra, CA
- Average sunshine days in September: 25.1 days
The month with the most sunshine days is October (27.1 days).
The month with the least sunshine days is February (18.8 days).
Average UV index in September
Piedra, CA
- Average UV index in September: 5
The month with the highest UV index is July (UV index 7).
The month with the lowest UV index is November (UV index 2).
Average cloud cover in September
Piedra, CA
- Average cloud cover in September: 5
The month with the most cloud cover is March (Cloud cover 25).
The month with the least cloud cover is August (Cloud cover 4).
Average visibility in September
Piedra, 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).
Piedra, California, USA
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