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 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
At the start of September, Ashland's average high-temperature reaches a still moderately hot 78.3°F (25.7°C), subtly different from the preceding month. During September, Ashland detects a significant contrast from its daytime temperatures, with nights averaging at a moderate 56.5°F (13.6°C).Humidity
The least humid month in Ashland, California, is September, with an average relative humidity of 62%.Rainfall
In Ashland, in September, it is raining for 2.1 days, with typically 0.08" (2mm) of accumulated precipitation. In Ashland, California, during the entire year, the rain falls for 56.9 days and collects up to 4.06" (103mm) of precipitation.Daylight
The average length of the day in September is 12h and 25min.On the first day of the month, sunrise is at 6:39 am and sunset at 7:37 pm. On the last day of September, sunrise is at 7:03 am and sunset at 6:52 pm PDT.
Sunshine
In September, the average sunshine is 11.1h.UV index
In Ashland, the average daily maximum UV index in September is 5. A UV Index reading of 3 to 5 represents a moderate threat to health from unprotected exposure to Sun's UV rays for average individuals.Note: A maximum high daily UV index of 5 during September translates into the following directions:
Safety measures are advised. Light-skinned individuals may experience burns in under half an hour. Given the potency of the midday Sun's UV radiation, one should avoid prolonged 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
What are September temperatures?
What is the least humid month?
What is the average humidity in September?
How many days does it rain in September?
What is the average length of the day in September?
When are sunrise and sunset in September?
How many hours of sunshine does Ashland have in September?
What is the UV index reading in September?
Average temperature in September
Ashland, CA
- Average high temperature in September: 78.3°F
The warmest month (with the highest average high temperature) is July (79.2°F).
The month with the lowest average high temperature is December (56.1°F).
- Average low temperature in September: 56.5°F
The month with the highest average low temperature is September (56.5°F).
The coldest months (with the lowest average low temperature) are January and December (44.1°F).
Average pressure in September
Ashland, CA
- Average pressure in September: 29.92"Hg
The month with the highest atmospheric pressure is January (30.13"Hg).
The months with the lowest atmospheric pressure are June, August and September (29.92"Hg).
Average wind speed in September
Ashland, CA
- Average wind speed in September: 5.1mph
The windiest month (with the highest average wind speed) is May (6.7mph).
The calmest month (with the lowest average wind speed) is November (4.7mph).
Average humidity in September
Ashland, CA
- Average humidity in September: 62%
The month with the highest relative humidity is March (74%).
The month with the lowest relative humidity is September (62%).
Average rainfall in September
Ashland, CA
- Average rainfall in September: 0.08"
The wettest month (with the highest rainfall) is February (0.87").
The driest months (with the least rainfall) are June, July and August (0.04").
Average rainfall days in September
Ashland, CA
- Average rainfall days in September: 2.1 days
The month with the highest number of rainy days is March (10.5 days).
The month with the least rainy days is August (0.7 days).
Average daylight in September /
Average sunshine in September
Ashland, 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 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 54min).
Average sunshine days in September
Ashland, CA
- Average sunshine days in September: 26.9 days
The month with the most sunshine days is July (27.9 days).
The month with the least sunshine days is March (18.6 days).
Average UV index in September
Ashland, CA
- Average UV index in September: 5
The month with the highest UV index is June (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 3).
Average cloud cover in September
Ashland, CA
- Average cloud cover in September: 10
The month with the most cloud cover is March (Cloud cover 34).
The month with the least cloud cover is July (Cloud cover 7).
Average visibility in September
Ashland, 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).
Ashland, California, USA
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