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
In September, the average high-temperature marginally drops from a moderately hot 75.7°F (24.3°C) in August to an agreeable 68.5°F (20.3°C). Throughout September nights, Fort Klamath reports a steady thermal contrast from the day, with an average low-temperature of 41.7°F (5.4°C).Humidity
The average relative humidity in September is 62%.Rainfall
In September, the rain falls for 6.4 days. Throughout September, 0.98" (25mm) of precipitation is accumulated. In Fort Klamath, during the entire year, the rain falls for 91.3 days and collects up to 32.95" (837mm) of precipitation.Snowfall
January through June, September through December are months with snowfall. September is the first month it typically snows. Throughout September, in the average 2 snowfall days, it receives 1.61" (41mm) of snow. Throughout the year, in Fort Klamath, there are 133.6 snowfall days, and 201.38" (5115mm) of snow is accumulated.Daylight
In Fort Klamath, the average length of the day in September is 12h and 28min.On the first day of September, sunrise is at 6:33 am and sunset at 7:41 pm. On the last day of the month, sunrise is at 7:05 am and sunset at 6:50 pm PDT.
Sunshine
The average sunshine in September is 10.5h.UV index
The average daily maximum UV index in September is 3. A UV Index reading of 3 to 5 represents a medium vulnerability from unprotected exposure to Sun's UV rays for the average person.Note: A maximum daily UV index of 3 during September morphs into the following directions:
Be vigilant - Preventing sunburn is recommended. It's recommended to limit sun exposure when its radiation is at its peak during midday. A wide-brimmed hat provides unparalleled sun protection for sensitive areas like the eyes, ears, and neck. Take note! UV radiation from the Sun can double in intensity due to snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the average September temperature?
What is the average humidity in September?
How much does it rain in September?
When does it start to snow?
How many hours of daylight does Fort Klamath have in September?
When is the sunrise / sunset in September?
How many hours of sunshine does Fort Klamath have in September?
How high is the UV index in September?
Average temperature in September
Fort Klamath, OR
- Average high temperature in September: 68.5°F
The warmest month (with the highest average high temperature) is July (76.5°F).
The month with the lowest average high temperature is December (34.9°F).
- Average low temperature in September: 41.7°F
The month with the highest average low temperature is August (46.8°F).
The coldest month (with the lowest average low temperature) is December (22.6°F).
Average pressure in September
Fort Klamath, OR
- Average pressure in September: 30"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is August (29.98"Hg).
Average wind speed in September
Fort Klamath, OR
- Average wind speed in September: 4.7mph
The windiest months (with the highest average wind speed) are January, February and March (6mph).
The calmest month (with the lowest average wind speed) is August (4.5mph).
Average humidity in September
Fort Klamath, OR
- Average humidity in September: 62%
The months with the highest relative humidity are January, February and March (87%).
The months with the lowest relative humidity are July and August (57%).
Average rainfall in September
Fort Klamath, OR
- Average rainfall in September: 0.98"
The wettest month (with the highest rainfall) is January (5.28").
The driest month (with the least rainfall) is July (0.39").
Average rainfall days in September
Fort Klamath, OR
- Average rainfall days in September: 6.4 days
The month with the highest number of rainy days is May (13.3 days).
The month with the least rainy days is February (4.3 days).
Average snowfall in September
Fort Klamath, OR
- Average snowfall in September: 1.61"
The month with the highest snowfall is December (39.72").
The months with the least snowfall are July and August (0").
Average snowfall days in September
Fort Klamath, OR
- Average snowfall days in September: 2 days
The month with the highest number of snowfall days is March (21.5 days).
The month with the least snowfall days is August (0 days).
Average daylight in September /
Average sunshine in September
Fort Klamath, OR
- Average daylight in September: 12h and 3min
The month with the longest days is June (Average daylight: 15h and 18min).
The month with the shortest days is December (Average daylight: 9h and 6min).
- Average sunshine in September: 10h and 3min
The month with the most sunshine is July (Average sunshine: 11h and 54min).
The month with the least sunshine is December (Average sunshine: 4h and 24min).
Average sunshine days in September
Fort Klamath, OR
- Average sunshine days in September: 21.1 days
The month with the most sunshine days is July (23.8 days).
The month with the least sunshine days is March (8.3 days).
Average UV index in September
Fort Klamath, OR
- Average UV index in September: 3
The months with the highest UV index are June and July (UV index 5).
The month with the lowest UV index is February (UV index 1).
Average cloud cover in September
Fort Klamath, OR
- Average cloud cover in September: 22
The month with the most cloud cover is March (Cloud cover 59).
The months with the least cloud cover are July and August (Cloud cover 13).
Average visibility in September
Fort Klamath, OR
- Average visibility in September: 6mi
The months with the highest visibility are June, July, August and September (6mi).
The months with the lowest visibility are January, February, March, April, November and December (4mi).
Fort Klamath, Oregon, USA
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