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 signifies a minor drop in average high-temperature, transitioning from a pleasant 73.2°F (22.9°C) in August to a refreshing 66°F (18.9°C). During September, the average low-temperature is a frosty 47.5°F (8.6°C).Humidity
In September, the average relative humidity in Van Zandt is 78%.Rainfall
In Van Zandt, in September, during 12.9 rainfall days, 2.56" (65mm) of precipitation is typically accumulated. Throughout the year, there are 194.7 rainfall days, and 48.66" (1236mm) of precipitation is accumulated.Snowfall
May through October are months without snowfall in Van Zandt.Daylight
In Van Zandt, Washington, the average length of the day in September is 12h and 34min.On the first day of the month, sunrise is at 6:26 am and sunset at 7:50 pm. On the last day of September, in Van Zandt, sunrise is at 7:08 am and sunset at 6:48 pm PDT.
Sunshine
In Van Zandt, the average sunshine in September is 9h.UV index
In September, the average daily maximum UV index in Van Zandt, Washington, is 3. A UV Index value of 3 to 5 symbolizes a moderate health risk from unsafe exposure to UV radiation for average individuals.Note: The daily high UV index of 3 during September translates into the following recommendations:
Undertake protective steps - Obligation to safeguard skin and eyes from harm is in place. The Sun's radiation is especially intense around midday; try to stay in shade during this period. Arm yourself against UV rays' harm with protective apparel and UV-filtering shades.
Frequently asked questions
What is the temperature in September in Van Zandt?
What is the average humidity in September in Van Zandt?
How many days does it rain in September in Van Zandt?
When it does not snow in Van Zandt?
How many hours of daylight does Van Zandt have in September?
When is the sunrise / sunset in September in Van Zandt?
How long on average sun shines in September in Van Zandt?
What is the UV index reading in September in Van Zandt?
Average temperature in September
Van Zandt, WA
- Average high temperature in September: 66°F
The warmest month (with the highest average high temperature) is August (73.2°F).
The month with the lowest average high temperature is December (39.6°F).
- Average low temperature in September: 47.5°F
The month with the highest average low temperature is August (51.3°F).
The coldest months (with the lowest average low temperature) are February and December (31.6°F).
Average pressure in September
Van Zandt, WA
- Average pressure in September: 30.01"Hg
The month with the highest atmospheric pressure is January (30.09"Hg).
The months with the lowest atmospheric pressure are March and August (30"Hg).
Average wind speed in September
Van Zandt, WA
- Average wind speed in September: 3.4mph
The windiest month (with the highest average wind speed) is January (4.8mph).
The calmest month (with the lowest average wind speed) is August (3.2mph).
Average humidity in September
Van Zandt, WA
- Average humidity in September: 78%
The month with the highest relative humidity is January (87%).
The month with the lowest relative humidity is July (73%).
Average rainfall in September
Van Zandt, WA
- Average rainfall in September: 2.56"
The wettest month (with the highest rainfall) is November (7.32").
The driest month (with the least rainfall) is July (1.02").
Average rainfall days in September
Van Zandt, WA
- Average rainfall days in September: 12.9 days
The month with the highest number of rainy days is March (21.6 days).
The month with the least rainy days is August (8.5 days).
Average snowfall in September
Van Zandt, WA
- Average snowfall in September: 0"
The month with the highest snowfall is February (2.99").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in September
Van Zandt, WA
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (4.3 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in September /
Average sunshine in September
Van Zandt, 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 18min).
- Average sunshine in September: 9h and 0min
The month with the most sunshine is August (Average sunshine: 10h and 30min).
The month with the least sunshine is January (Average sunshine: 4h and 0min).
Average sunshine days in September
Van Zandt, WA
- Average sunshine days in September: 15.2 days
The months with the most sunshine days are July and August (20 days).
The month with the least sunshine days is March (7.8 days).
Average UV index in September
Van Zandt, WA
- Average UV index in September: 3
The months with the highest UV index are June and July (UV index 5).
The months with the lowest UV index are January, February, October, November and December (UV index 2).
Average cloud cover in September
Van Zandt, WA
- Average cloud cover in September: 37
The months with the most cloud cover are January, March and December (Cloud cover 58).
The months with the least cloud cover are July and August (Cloud cover 28).
Average visibility in September
Van Zandt, WA
- Average visibility in September: 5mi
The months with the highest visibility are July and August (6mi).
The month with the lowest visibility is January (4mi).
Van Zandt, Washington, USA
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