September weather forecastMontgomery Creek, CA
September
Weather in September
The first month of the autumn, September, is still a warm month in Montgomery Creek, California, with an average temperature varying between 48°F (8.9°C) and 78.8°F (26°C).Temperature
In Montgomery Creek, entering September brings a subtle temperature decrement, reducing from August's 85.8°F (29.9°C) to a still moderately hot 78.8°F (26°C). Throughout September, Montgomery Creek braces for a considerable drop from daytime highs, with an average low-temperature of 48°F (8.9°C).Humidity
The average relative humidity in September is 45%.Rainfall
In Montgomery Creek, during September, the rain falls for 4.1 days and regularly aggregates up to 0.39" (10mm) of precipitation. Throughout the year, there are 105 rainfall days, and 24.69" (627mm) of precipitation is accumulated.Snowfall
In Montgomery Creek, snow does not fall in June through September.Daylight
In September, the average length of the day in Montgomery Creek is 12h and 27min.On the first day of the month, sunrise is at 6:35 am and sunset at 7:39 pm. On the last day of September, sunrise is at 7:04 am and sunset at 6:50 pm PDT.
Sunshine
In Montgomery Creek, the average sunshine in September is 11.1h.UV index
In September, the average daily maximum UV index is 4. A UV Index of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV radiation for ordinary individuals.Note: The maximum daily UV index of 4 in September interprets into the following recommendations:
Take measures. Individuals with light skin might experience burns in under 30 minutes. Limiting exposure to the direct Sun during midday hours can help prevent harmful UV radiation effects. Sun protection is enhanced with clothing that boasts a tight weave yet offers a loose fit. Beware! The strength of the UV rays is increased nearly double-fold by the reflection of the snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Montgomery Creek, 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
Montgomery Creek, 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
Montgomery Creek, 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
Montgomery Creek, 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
Montgomery Creek, 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
Montgomery Creek, 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
Montgomery Creek, 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
Montgomery Creek, 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
Montgomery Creek, CA
- Average daylight in September: 12h and 24min
The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 18min).
- Average sunshine in September: 11h and 6min
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
Montgomery Creek, 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
Montgomery Creek, 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
Montgomery Creek, 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
Montgomery Creek, 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).
