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
September sees a slight reduction in average high-temperature, with a shift from a hot 88.9°F (31.6°C) in August to a moderately hot 82.9°F (28.3°C). In September, a remarkable difference from daytime highs is noted, as Coulterville records an average temperature of 57°F (13.9°C) during the night.Humidity
The average relative humidity in September is 36%.Rainfall
In Coulterville, California, during September, the rain falls for 2.8 days and regularly aggregates up to 0.24" (6mm) of precipitation. Throughout the year, there are 79.1 rainfall days, and 27.32" (694mm) of precipitation is accumulated.Snowfall
In Coulterville, California, snow does not fall in May through October.Daylight
In Coulterville, the average length of the day in September is 12h and 25min.On the first day of the month, sunrise is at 6:31 am and sunset at 7:29 pm. On the last day of September, in Coulterville, sunrise is at 6:56 am and sunset at 6:44 pm PDT.
Sunshine
In September, the average sunshine in Coulterville is 11.3h.UV index
In September, the average daily maximum UV index is 5. A UV Index reading of 3 to 5 represents a moderate health risk from unsafe exposure to UV radiation for ordinary individuals.Note: In September, the UV index of 5 transforms into the following advice:
Heed the precautions - It is counselled to guard against solar damage. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. Fend off the sun's harsh rays with appropriate clothing, a wide-brim hat, and UV-protective sunglasses.
Frequently asked questions
How hot is it in Coulterville in September?
What is the average humidity in September in Coulterville?
How much does it rain in Coulterville in September?
When it does not snow in Coulterville?
How many hours of daylight does Coulterville have in September?
When are sunrise and sunset in September in Coulterville?
How many hours of sunshine does Coulterville have in September?
What is the UV index intensity in September in Coulterville?
Average temperature in September
Coulterville, 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
Coulterville, 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
Coulterville, 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
Coulterville, 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
Coulterville, 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
Coulterville, 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
Coulterville, 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
Coulterville, 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
Coulterville, 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
Coulterville, 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
Coulterville, 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
Coulterville, 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
Coulterville, 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).
Coulterville, California, USA
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