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 is characterized by a slight reduction in average high-temperature, easing from a pleasant 71.2°F (21.8°C) in August to an enjoyable 64°F (17.8°C). An average low-temperature of 43.5°F (6.4°C) is noted during the month of September.Humidity
In Maple Falls, the average relative humidity in September is 79%.Rainfall
In September, the rain falls for 15.1 days. Throughout September, 3.82" (97mm) of precipitation is accumulated. In Maple Falls, during the entire year, the rain falls for 194.4 days and collects up to 69.29" (1760mm) of precipitation.Snowfall
June through September are months without snowfall.Daylight
In September, the average length of the day is 12h and 34min.On the first day of September in Maple Falls, Washington, sunrise is at 6:26 am and sunset at 7:49 pm. On the last day of the month, sunrise is at 7:07 am and sunset at 6:48 pm PDT.
Sunshine
The average sunshine in September is 8h.UV index
In Maple Falls, the average daily maximum UV index in September is 3. A UV Index estimate of 3 to 5 represents a medium vulnerability from unprotected exposure to Sun's UV rays for the ordinary person.Note: In September, a daily maximum UV index of 3 leads to the following instructions:
Preventative actions are necessary - Suggestions to safeguard against sun damage are in order. Direct exposure to the Sun during its peak hours around mid-day should be minimized for safety. For minimizing sun-related eye damage, always choose sunglasses with UVA and UVB coverage.
Frequently asked questions
What is the usual temperature for Maple Falls in September?
What is the average humidity in September in Maple Falls?
How much does it rain in Maple Falls in September?
When it does not snow in Maple Falls?
Does it snow in Maple Falls in September?
How many hours of daylight does Maple Falls have in September?
What time are sunrise and sunset in September in Maple Falls?
How many hours of sunshine does Maple Falls have in September?
What is the UV index intensity in September in Maple Falls?
Average temperature in September
Maple Falls, WA
- Average high temperature in September: 64°F
The warmest month (with the highest average high temperature) is August (71.2°F).
The month with the lowest average high temperature is December (35.6°F).
- Average low temperature in September: 43.5°F
The month with the highest average low temperature is August (46.9°F).
The coldest month (with the lowest average low temperature) is December (26.1°F).
Average pressure in September
Maple Falls, WA
- Average pressure in September: 30"Hg
The month with the highest atmospheric pressure is January (30.1"Hg).
The months with the lowest atmospheric pressure are May, June, August and September (30"Hg).
Average wind speed in September
Maple Falls, WA
- Average wind speed in September: 3.4mph
The windiest month (with the highest average wind speed) is January (4.6mph).
The calmest month (with the lowest average wind speed) is August (3.3mph).
Average humidity in September
Maple Falls, WA
- Average humidity in September: 79%
The month with the highest relative humidity is January (90%).
The month with the lowest relative humidity is July (74%).
Average rainfall in September
Maple Falls, WA
- Average rainfall in September: 3.82"
The wettest month (with the highest rainfall) is January (10.39").
The driest month (with the least rainfall) is July (1.5").
Average rainfall days in September
Maple Falls, WA
- Average rainfall days in September: 15.1 days
The month with the highest number of rainy days is April (21.3 days).
The month with the least rainy days is August (10.3 days).
Average snowfall in September
Maple Falls, WA
- Average snowfall in September: 0"
The month with the highest snowfall is February (22.36").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Maple Falls, WA
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is December (11.4 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Maple Falls, 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: 8h and 0min
The month with the most sunshine is August (Average sunshine: 10h and 0min).
The month with the least sunshine is December (Average sunshine: 3h and 18min).
Average sunshine days in September
Maple Falls, WA
- Average sunshine days in September: 13.1 days
The month with the most sunshine days is August (18.1 days).
The month with the least sunshine days is April (6.8 days).
Average UV index in September
Maple Falls, WA
- Average UV index in September: 3
The month with the highest UV index is July (UV index 5).
The months with the lowest UV index are January and November (UV index 1).
Average cloud cover in September
Maple Falls, WA
- Average cloud cover in September: 46
The month with the most cloud cover is March (Cloud cover 67).
The month with the least cloud cover is August (Cloud cover 34).
Average visibility in September
Maple Falls, WA
- Average visibility in September: 4mi
The months with the highest visibility are June, July and August (5mi).
The months with the lowest visibility are January, February, March, April, May, September, October, November and December (4mi).
Maple Falls, Washington, USA
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