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
September's arrival comes with a decrease in the average high-temperature, moving from a moderately hot 81.1°F (27.3°C) in August to an agreeable 69.8°F (21°C). Significant variation from daytime temperatures marks September in Evans, with the month recording a nightly average of 42.8°F (6°C).Humidity
The average relative humidity in September in Evans is 61%.Rainfall
In Evans, during September, the rain falls for 10.2 days and regularly aggregates up to 1.02" (26mm) of precipitation. In Evans, Washington, during the entire year, the rain falls for 156.3 days and collects up to 16.18" (411mm) of precipitation.Snowfall
January through April, September through December are months with snowfall in Evans, Washington. September is the first month it typically snows. Throughout September, in the average 0.3 snowfall days, it receives 0.39" (10mm) of snow. Throughout the year, in Evans, there are 53.2 snowfall days, and 25.16" (639mm) of snow is accumulated.Daylight
The average length of the day in September in Evans is 12h and 34min.On the first day of September in Evans, sunrise is at 6:10 am and sunset at 7:33 pm. On the last day of the month, sunrise is at 6:51 am and sunset at 6:32 pm PDT.
Sunshine
In September, the average sunshine in Evans is 10.2h.UV index
The average daily maximum UV index in September is 3. A UV Index of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV rays for average individuals.Note: The maximum UV index, 3 during September, leads to the following recommendations:
Preventative actions are necessary - The mandate to avoid skin and eye damage is in place. Considering the strength of solar radiation at midday, one should avoid direct Sun exposure. Your best bet for sun defense on the face, eyes, and neck is a hat with a wide brim. Be advised! The UV radiation from the Sun can be almost doubled due to the reflective properties of snow.
Frequently asked questions
What are the temperatures in Evans in September?
What is the average humidity in September in Evans?
How many days does it rain in September in Evans?
When does it start snowing in Evans?
What is the average length of the day in September in Evans?
When are sunrise and sunset in September in Evans?
How long on average sun shines in September in Evans?
How high is the UV index in September in Evans?
Average temperature in September
Evans, WA
- Average high temperature in September: 69.8°F
The warmest month (with the highest average high temperature) is August (81.1°F).
The month with the lowest average high temperature is December (28.9°F).
- Average low temperature in September: 42.8°F
The month with the highest average low temperature is August (50.5°F).
The coldest month (with the lowest average low temperature) is February (16°F).
Average pressure in September
Evans, WA
- Average pressure in September: 29.97"Hg
The month with the highest atmospheric pressure is January (30.19"Hg).
The months with the lowest atmospheric pressure are June and August (29.92"Hg).
Average wind speed in September
Evans, WA
- Average wind speed in September: 3.4mph
The windiest month (with the highest average wind speed) is April (3.9mph).
The calmest months (with the lowest average wind speed) are January, February and December (3mph).
Average humidity in September
Evans, WA
- Average humidity in September: 61%
The month with the highest relative humidity is January (94%).
The month with the lowest relative humidity is August (50%).
Average rainfall in September
Evans, WA
- Average rainfall in September: 1.02"
The wettest month (with the highest rainfall) is May (1.93").
The driest month (with the least rainfall) is August (0.39").
Average rainfall days in September
Evans, WA
- Average rainfall days in September: 10.2 days
The month with the highest number of rainy days is March (18.4 days).
The month with the least rainy days is August (6.1 days).
Average snowfall in September
Evans, WA
- Average snowfall in September: 0.39"
The month with the highest snowfall is January (6.61").
The months with the least snowfall are May, June, July and August (0").
Average snowfall days in September
Evans, WA
- Average snowfall days in September: 0.3 days
The month with the highest number of snowfall days is December (13.7 days).
The months with the least snowfall days are May, June, July and August (0 days).
Average daylight in September /
Average sunshine in September
Evans, WA
- Average daylight in September: 12h and 4min
The month with the longest days is June (Average daylight: 16h and 6min).
The month with the shortest days is December (Average daylight: 8h and 24min).
- Average sunshine in September: 10h and 1min
The month with the most sunshine is August (Average sunshine: 12h and 0min).
The month with the least sunshine is January (Average sunshine: 3h and 48min).
Average sunshine days in September
Evans, WA
- Average sunshine days in September: 17.6 days
The month with the most sunshine days is August (20.8 days).
The month with the least sunshine days is March (9 days).
Average UV index in September
Evans, WA
- Average UV index in September: 3
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 1).
Average cloud cover in September
Evans, WA
- Average cloud cover in September: 23
The month with the most cloud cover is January (Cloud cover 60).
The month with the least cloud cover is August (Cloud cover 14).
Average visibility in September
Evans, WA
- Average visibility in September: 6mi
The months with the highest visibility are May, June, July, August and September (6mi).
The month with the lowest visibility is January (2mi).
Evans, Washington, USA
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