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
Klickitat experiences a temperature shift at the start of September, with average high-temperatures adjusting from a moderately hot 81.3°F (27.4°C) in August to a pleasant 71.6°F (22°C). In September, Klickitat experiences an average nighttime temperature of 50.7°F (10.4°C).Humidity
The average relative humidity in September in Klickitat is 58%.Rainfall
In Klickitat, Washington, in September, it is raining for 6.9 days, with typically 0.59" (15mm) of accumulated precipitation. In Klickitat, during the entire year, the rain falls for 133.5 days and collects up to 16.93" (430mm) of precipitation.Snowfall
April through October are months without snowfall in Klickitat.Daylight
In September, the average length of the day is 12h and 31min.On the first day of September, sunrise is at 6:26 am and sunset at 7:42 pm. On the last day of the month, sunrise is at 7:02 am and sunset at 6:45 pm PDT.
Sunshine
The average sunshine in September is 10.7h.UV index
In Klickitat, the average daily maximum UV index in September is 4. A UV Index of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV radiation for the ordinary person.Note: In September, a daily maximum UV index of 4 leads to the following instructions:
Be vigilant - Suggestions to stave off sun damage are provided. Around midday, solar radiation is most harmful; hence, exposure should be limited. Consider a wide-brim hat essential for effective sun defense covering your face, neck, and eyes.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the average September temperature in Klickitat?
What is the average humidity in September in Klickitat?
How many days does it rain in September in Klickitat?
When it does not snow in Klickitat?
What is the average length of the day in September in Klickitat?
What time are sunrise and sunset in September in Klickitat?
How many hours of sunshine does Klickitat have in September?
What is the UV index reading in September in Klickitat?
Average temperature in September
Klickitat, WA
- Average high temperature in September: 71.6°F
The warmest month (with the highest average high temperature) is July (81.7°F).
The month with the lowest average high temperature is December (37°F).
- Average low temperature in September: 50.7°F
The month with the highest average low temperature is August (55.8°F).
The coldest month (with the lowest average low temperature) is December (27.1°F).
Average pressure in September
Klickitat, WA
- Average pressure in September: 29.98"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is August (29.96"Hg).
Average wind speed in September
Klickitat, WA
- Average wind speed in September: 5.5mph
The windiest month (with the highest average wind speed) is June (7.1mph).
The calmest months (with the lowest average wind speed) are January and December (4.8mph).
Average humidity in September
Klickitat, WA
- Average humidity in September: 58%
The months with the highest relative humidity are January and December (85%).
The months with the lowest relative humidity are July and August (51%).
Average rainfall in September
Klickitat, WA
- Average rainfall in September: 0.59"
The wettest month (with the highest rainfall) is January (2.99").
The driest month (with the least rainfall) is July (0.16").
Average rainfall days in September
Klickitat, WA
- Average rainfall days in September: 6.9 days
The month with the highest number of rainy days is March (16.3 days).
The month with the least rainy days is August (3.2 days).
Average snowfall in September
Klickitat, WA
- Average snowfall in September: 0"
The month with the highest snowfall is February (4.29").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in September
Klickitat, WA
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is December (4.4 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).
Average daylight in September /
Average sunshine in September
Klickitat, WA
- Average daylight in September: 12h and 3min
The month with the longest days is June (Average daylight: 15h and 42min).
The month with the shortest days is December (Average daylight: 8h and 42min).
- Average sunshine in September: 10h and 4min
The month with the most sunshine is July (Average sunshine: 12h and 0min).
The month with the least sunshine is January (Average sunshine: 4h and 48min).
Average sunshine days in September
Klickitat, WA
- Average sunshine days in September: 21.6 days
The month with the most sunshine days is July (26.8 days).
The month with the least sunshine days is March (10.6 days).
Average UV index in September
Klickitat, WA
- Average UV index in September: 4
The month with the highest UV index is 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
Klickitat, WA
- Average cloud cover in September: 18
The month with the most cloud cover is January (Cloud cover 52).
The months with the least cloud cover are July and August (Cloud cover 10).
Average visibility in September
Klickitat, WA
- Average visibility in September: 6mi
The months with the highest visibility are March, April, May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January, February and December (5mi).
Klickitat, Washington, USA
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