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
Dallesport in September demonstrates a small temperature transition, adjusting from an average high of a warm 81.3°F (27.4°C) in August to an agreeable 71.6°F (22°C). September nights observe an average temperature dip to a fresh 50.7°F (10.4°C).Humidity
The average relative humidity in September in Dallesport is 58%.Rainfall
In Dallesport, in September, during 6.9 rainfall days, 0.59" (15mm) of precipitation is typically accumulated. Throughout the year, in Dallesport, there are 133.5 rainfall days, and 16.93" (430mm) of precipitation is accumulated.Snowfall
April through October are months without snowfall in Dallesport.Daylight
In Dallesport, the average length of the day in September is 12h and 31min.On the first day of the month, sunrise is at 6:27 am and sunset at 7:41 pm. On the last day of September, in Dallesport, sunrise is at 7:02 am and sunset at 6:46 pm PDT.
Sunshine
In Dallesport, the average sunshine in September is 10.7h.UV index
The average daily maximum UV index in September in Dallesport is 4. A UV Index estimate of 3 to 5 represents a moderate health risk from exposure to the Sun's UV radiation for ordinary individuals.Note: A daily maximum UV index of 4 in September translates into the following instructions:
Make use of precautions - It is urged to ward off sun damage. Considering the Sun's intensity during midday, it's wise to minimize direct exposure. A wide-brimmed hat is a shield, deflecting up to 50% of harmful UV radiation from eyes.
Frequently asked questions
What is the average September temperature in Dallesport?
What is the average humidity in September in Dallesport?
How many days does it rain in September in Dallesport?
When it does not snow in Dallesport?
How many hours of daylight does Dallesport have in September?
What time are sunrise and sunset in September in Dallesport?
How many hours of sunshine does Dallesport have in September?
How high is the UV index in September in Dallesport?
Average temperature in September
Dallesport, 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
Dallesport, 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
Dallesport, 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
Dallesport, 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
Dallesport, 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
Dallesport, 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
Dallesport, 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
Dallesport, 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
Dallesport, WA
- Average daylight in September: 12h and 3min
The month with the longest days is June (Average daylight: 15h and 36min).
The month with the shortest days is December (Average daylight: 8h and 48min).
- 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
Dallesport, 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
Dallesport, 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
Dallesport, 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
Dallesport, 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).
Dallesport, Washington, USA
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