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
The advent of September observes an average high-temperature of a comfortable 66.7°F (19.3°C), nearly identical to August's 68°F (20°C). During September, the temperature tends to dip to an average of 53.4°F (11.9°C) at night.Humidity
September is the least humid month in Klamath, with an average relative humidity of 76%.Rainfall
In Klamath, in September, it is raining for 5.5 days, with typically 1.02" (26mm) of accumulated precipitation. In Klamath, California, during the entire year, the rain falls for 131.4 days and collects up to 45.67" (1160mm) of precipitation.Snowfall
February and September are months with snowfall. September is the first month it typically snows in Klamath. Throughout September, in the average 0.1 snowfall days, it receives 0.04" (1mm) of snow. In Klamath, during the entire year, snow falls for 0.4 days and aggregates up to 0.47" (12mm) of snow.Daylight
In September, the average length of the day is 12h and 28min.On the first day of the month, sunrise is at 6:43 am and sunset at 7:48 pm. On the last day of September, in Klamath, sunrise is at 7:12 am and sunset at 6:58 pm PDT.
Sunshine
The average sunshine in September is 10.2h.UV index
In September, the average daily maximum UV index is 4. A UV Index of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV radiation for the average person.Note: The UV index of 4 during September translates into the following guidance:
Take precautions. Light skin individuals may get burned in less than 30 minutes. Protect yourself from the midday Sun's peak UV radiation by minimizing exposure. Arm yourself against UV rays' harm with protective apparel and UV-filtering shades. Be aware! The reflective nature of snow can magnify the Sun's UV radiation almost twofold.
Frequently asked questions
What are September temperatures in Klamath?
What is the least humid month in Klamath?
What is the average humidity in September in Klamath?
How much does it rain in Klamath in September?
When does it start to snow in Klamath?
How many hours of daylight does Klamath have in September?
When is the sunrise / sunset in September in Klamath?
How long on average sun shines in September in Klamath?
How high is the UV index in September in Klamath?
Average temperature in September
Klamath, CA
- Average high temperature in September: 66.7°F
The warmest month (with the highest average high temperature) is August (68°F).
The month with the lowest average high temperature is December (51.3°F).
- Average low temperature in September: 53.4°F
The months with the highest average low temperature are July and August (54.1°F).
The coldest month (with the lowest average low temperature) is February (43.2°F).
Average pressure in September
Klamath, CA
- Average pressure in September: 30"Hg
The month with the highest atmospheric pressure is January (30.12"Hg).
The month with the lowest atmospheric pressure is August (29.99"Hg).
Average wind speed in September
Klamath, CA
- Average wind speed in September: 7.5mph
The windiest month (with the highest average wind speed) is June (9.9mph).
The calmest month (with the lowest average wind speed) is August (7.1mph).
Average humidity in September
Klamath, CA
- Average humidity in September: 76%
The month with the highest relative humidity is March (81%).
The month with the lowest relative humidity is September (76%).
Average rainfall in September
Klamath, CA
- Average rainfall in September: 1.02"
The wettest month (with the highest rainfall) is December (8.15").
The driest month (with the least rainfall) is July (0.12").
Average rainfall days in September
Klamath, CA
- Average rainfall days in September: 5.5 days
The month with the highest number of rainy days is March (18.7 days).
The month with the least rainy days is July (2.4 days).
Average snowfall in September
Klamath, CA
- Average snowfall in September: 0.04"
The month with the highest snowfall is February (0.43").
The months with the least snowfall are January, March, April, May, June, July, August, October, November and December (0").
Average snowfall days in September
Klamath, CA
- Average snowfall days in September: 0.1 days
The month with the highest number of snowfall days is February (0.2 days).
The months with the least snowfall days are January, March, April, May, June, July, August, October and November (0 days).
Average daylight in September /
Average sunshine in September
Klamath, CA
- Average daylight in September: 12h and 3min
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 12min).
- Average sunshine in September: 10h and 1min
The months with the most sunshine are July and August (Average sunshine: 11h and 48min).
The month with the least sunshine is January (Average sunshine: 5h and 0min).
Average sunshine days in September
Klamath, CA
- Average sunshine days in September: 24 days
The month with the most sunshine days is July (27.8 days).
The month with the least sunshine days is March (10.8 days).
Average UV index in September
Klamath, CA
- Average UV index in September: 4
The months with the highest UV index are July and August (UV index 5).
The month with the lowest UV index is February (UV index 2).
Average cloud cover in September
Klamath, CA
- Average cloud cover in September: 17
The month with the most cloud cover is March (Cloud cover 48).
The month with the least cloud cover is July (Cloud cover 10).
Average visibility in September
Klamath, 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).
Klamath, California, USA
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