September weather forecastGroveland, CA
September weather for Groveland, California: The first month of the autumn, September, is still a warm month in Groveland, California, with an average temperature ranging between max 82.9°F (28.3°C) and min 57°F (13.9°C). In Groveland, California, in September, it is raining for 2.8 days, with typically 0.24" (6mm) of accumulated precipitation.
September
Weather in September
The first month of the autumn, September, is still a warm month in Groveland, California, with an average temperature ranging between max 82.9°F (28.3°C) and min 57°F (13.9°C).Temperature
In September, the average high-temperature marginally drops from a tropical 88.9°F (31.6°C) in August to a moderately hot 82.9°F (28.3°C). Following the sharp contrast to daytime warmth, an average nighttime temperature of 57°F (13.9°C) gets registered in Groveland during September.Humidity
The average relative humidity in September is 36%.Rainfall
In Groveland, California, in September, it is raining for 2.8 days, with typically 0.24" (6mm) of accumulated precipitation. Throughout the year, there are 79.1 rainfall days, and 27.32" (694mm) of precipitation is accumulated.Snowfall
May through October are months without snowfall.Daylight
In Groveland, the average length of the day in September is 12h and 25min.On the first day of September, sunrise is at 6:31 am and sunset at 7:29 pm. On the last day of the month, sunrise is at 6:56 am and sunset at 6:44 pm PDT.
Sunshine
The average sunshine in September is 11.3h.UV index
In Groveland, the average daily maximum UV index in September is 5. A UV Index value of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV radiation for average individuals.Note: The daily high UV index of 5 during September translates into the following recommendations:
Be vigilant - Preventing sunburn is recommended. To guard against the harmful effects of the Sun, minimize exposure during midday. Protect your eyes, ears, face, and neck from the Sun by wearing a wide-brimmed hat.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Groveland, CA
- Average high temperature in September: 82.9°F
The warmest month (with the highest average high temperature) is July (89.6°F).
The month with the lowest average high temperature is December (51.4°F).
- Average low temperature in September: 57°F
The month with the highest average low temperature is July (61.2°F).
The coldest month (with the lowest average low temperature) is December (35.1°F).
Average pressure in September
Groveland, CA
- Average pressure in September: 29.93"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in September
Groveland, CA
- Average wind speed in September: 5.1mph
The windiest month (with the highest average wind speed) is February (5.8mph).
The calmest month (with the lowest average wind speed) is November (4.7mph).
Average humidity in September
Groveland, CA
- Average humidity in September: 36%
The month with the highest relative humidity is March (70%).
The months with the lowest relative humidity are July and August (33%).
Average rainfall in September
Groveland, CA
- Average rainfall in September: 0.24"
The wettest month (with the highest rainfall) is March (5.31").
The driest months (with the least rainfall) are July and August (0.04").
Average rainfall days in September
Groveland, CA
- Average rainfall days in September: 2.8 days
The month with the highest number of rainy days is March (14 days).
The month with the least rainy days is August (1.2 days).
Average snowfall in September
Groveland, CA
- Average snowfall in September: 0"
The month with the highest snowfall is February (8.58").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in September
Groveland, CA
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (3.1 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
Groveland, CA
- Average daylight in September: 12h and 24min
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 18min
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
Groveland, CA
- Average sunshine days in September: 26.6 days
The months with the most sunshine days are July and August (28.8 days).
The month with the least sunshine days is March (15.4 days).
Average UV index in September
Groveland, 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
Groveland, CA
- Average cloud cover in September: 6
The month with the most cloud cover is March (Cloud cover 35).
The month with the least cloud cover is July (Cloud cover 4).
Average visibility in September
Groveland, 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).
