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
With the beginning of September, the average high-temperature shows a small decrease, transitioning from a moderately hot 75.9°F (24.4°C) in August to an agreeable 69.1°F (20.6°C). Despite high daytime temperatures, the average temperature in Morton lowers to a chilly 45°F (7.2°C) during September nights.Humidity
In September, the average relative humidity is 76%.Rainfall
In Morton, during September, the rain falls for 11.8 days and regularly aggregates up to 1.93" (49mm) of precipitation. Throughout the year, there are 178.8 rainfall days, and 40.47" (1028mm) of precipitation is accumulated.Snowfall
May through October are months without snowfall.Daylight
In September, the average length of the day in Morton is 12h and 32min.On the first day of September in Morton, sunrise is at 6:30 am and sunset at 7:47 pm. On the last day of the month, sunrise is at 7:07 am and sunset at 6:50 pm PDT.
Sunshine
In September, the average sunshine in Morton is 8.7h.UV index
The average daily maximum UV index in September is 3. A UV Index of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV rays for ordinary individuals.Note: A daily high UV index of 3 in September leads to these guidelines:
Exercise caution. Those with pale skin may experience burns in less than half an hour. To guard against the harmful effects of the Sun, minimize exposure during midday. Sunglasses providing both UVA and UVB protection are non-negotiable on sunlit days. Beware! The strength of the UV rays is increased nearly double-fold by the reflection of the snow.
Frequently asked questions
What are September temperatures in Morton?
What is the average humidity in September in Morton?
How many days does it rain in September in Morton?
When it does not snow in Morton?
What is the average length of the day in September in Morton?
When is the sunrise / sunset in September in Morton?
How many hours of sunshine does Morton have in September?
What is the UV index intensity in September in Morton?
Average temperature in September
Morton, WA
- Average high temperature in September: 69.1°F
The warmest month (with the highest average high temperature) is August (75.9°F).
The month with the lowest average high temperature is December (41.2°F).
- Average low temperature in September: 45°F
The month with the highest average low temperature is August (47.3°F).
The coldest month (with the lowest average low temperature) is December (30.7°F).
Average pressure in September
Morton, WA
- Average pressure in September: 30.01"Hg
The month with the highest atmospheric pressure is January (30.11"Hg).
The month with the lowest atmospheric pressure is August (30"Hg).
Average wind speed in September
Morton, WA
- Average wind speed in September: 3.7mph
The windiest month (with the highest average wind speed) is January (5.3mph).
The calmest month (with the lowest average wind speed) is August (3.6mph).
Average humidity in September
Morton, WA
- Average humidity in September: 76%
The month with the highest relative humidity is February (88%).
The month with the lowest relative humidity is July (71%).
Average rainfall in September
Morton, WA
- Average rainfall in September: 1.93"
The wettest month (with the highest rainfall) is January (6.46").
The driest month (with the least rainfall) is July (0.43").
Average rainfall days in September
Morton, WA
- Average rainfall days in September: 11.8 days
The month with the highest number of rainy days is March (20.3 days).
The month with the least rainy days is July (6.3 days).
Average snowfall in September
Morton, WA
- Average snowfall in September: 0"
The month with the highest snowfall is January (5.51").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in September
Morton, WA
- Average snowfall days in September: 0.1 days
The month with the highest number of snowfall days is February (6 days).
The months with the least snowfall days are June, July, August and October (0 days).
Average daylight in September /
Average sunshine in September
Morton, WA
- Average daylight in September: 12h and 3min
The month with the longest days is June (Average daylight: 15h and 48min).
The month with the shortest days is December (Average daylight: 8h and 36min).
- Average sunshine in September: 8h and 4min
The month with the most sunshine is August (Average sunshine: 10h and 36min).
The months with the least sunshine are January and February (Average sunshine: 3h and 48min).
Average sunshine days in September
Morton, WA
- Average sunshine days in September: 17.4 days
The month with the most sunshine days is August (23.2 days).
The month with the least sunshine days is February (8.2 days).
Average UV index in September
Morton, WA
- Average UV index in September: 3
The month with the highest UV index is July (UV index 5).
The month with the lowest UV index is November (UV index 1).
Average cloud cover in September
Morton, WA
- Average cloud cover in September: 40
The month with the most cloud cover is March (Cloud cover 62).
The month with the least cloud cover is August (Cloud cover 30).
Average visibility in September
Morton, WA
- Average visibility in September: 5mi
The months with the highest visibility are July, August and September (5mi).
The months with the lowest visibility are January, February, March, April, May, June, October, November and December (4mi).
Morton, Washington, USA
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