September weather forecastParkland, WA
September
Weather in September
The first month of the autumn, September, is still a pleasant month in Parkland, Washington, with an average temperature varying between 70.7°F (21.5°C) and 49.1°F (9.5°C).Temperature
The advent of September brings a subtle shift in temperature, with the average high moving from a moderately hot 78.4°F (25.8°C) in August to an agreeable 70.7°F (21.5°C). A steep decline to a frosty 49.1°F (9.5°C) characterizes the September nights.Humidity
The average relative humidity in September is 75%.Rainfall
In Parkland, during September, the rain falls for 12.3 days and regularly aggregates up to 1.57" (40mm) of precipitation. Throughout the year, there are 176.3 rainfall days, and 30.28" (769mm) of precipitation is accumulated.Snowfall
In Parkland, snow does not fall in May through October.Daylight
The average length of the day in September in Parkland is 12h and 32min.On the first day of September in Parkland, Washington, sunrise is at 6:30 am and sunset at 7:48 pm. On the last day of the month, sunrise is at 7:08 am and sunset at 6:50 pm PDT.
Sunshine
In Parkland, the average sunshine in September is 9.1h.UV index
In Parkland, the average daily maximum UV index in September is 4. A UV Index reading of 3 to 5 represents a medium vulnerability from unsafe exposure to UV radiation for ordinary individuals.Note: In September, a daily UV index of 4 turns into the following recommendations:
Heed the precautions - It is counselled to guard against solar damage. To prevent harmful UV exposure, minimize direct contact with the Sun around midday. A wide-brimmed hat is a staple for defending the face, eyes, ears, and neck from the Sun.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Parkland, WA
- Average high temperature in September: 70.7°F
The warmest month (with the highest average high temperature) is August (78.4°F).
The month with the lowest average high temperature is December (43.7°F).
- Average low temperature in September: 49.1°F
The month with the highest average low temperature is August (52.5°F).
The coldest month (with the lowest average low temperature) is February (34.2°F).
Average pressure in September
Parkland, WA
- Average pressure in September: 30.01"Hg
The month with the highest atmospheric pressure is January (30.1"Hg).
The months with the lowest atmospheric pressure are March, August and September (30.01"Hg).
Average wind speed in September
Parkland, WA
- Average wind speed in September: 4mph
The windiest month (with the highest average wind speed) is March (5.2mph).
The calmest month (with the lowest average wind speed) is August (3.7mph).
Average humidity in September
Parkland, WA
- Average humidity in September: 75%
The months with the highest relative humidity are January and December (87%).
The month with the lowest relative humidity is July (69%).
Average rainfall in September
Parkland, WA
- Average rainfall in September: 1.57"
The wettest month (with the highest rainfall) is December (4.76").
The driest month (with the least rainfall) is July (0.39").
Average rainfall days in September
Parkland, WA
- Average rainfall days in September: 12.3 days
The month with the highest number of rainy days is March (19.9 days).
The month with the least rainy days is August (5.1 days).
Average snowfall in September
Parkland, WA
- Average snowfall in September: 0"
The month with the highest snowfall is February (2.09").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in September
Parkland, WA
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (3.4 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
Parkland, WA
- Average daylight in September: 12h and 30min
The month with the longest days is June (Average daylight: 15h and 54min).
The month with the shortest days is December (Average daylight: 8h and 36min).
- Average sunshine in September: 9h and 6min
The month with the most sunshine is August (Average sunshine: 10h and 36min).
The month with the least sunshine is December (Average sunshine: 4h and 0min).
Average sunshine days in September
Parkland, WA
- Average sunshine days in September: 16.2 days
The month with the most sunshine days is August (23.3 days).
The months with the least sunshine days are February and March (9 days).
Average UV index in September
Parkland, 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
Parkland, WA
- Average cloud cover in September: 37
The months with the most cloud cover are January and December (Cloud cover 58).
The month with the least cloud cover is August (Cloud cover 27).
Average visibility in September
Parkland, WA
- Average visibility in September: 5mi
The months with the highest visibility are July and August (6mi).
The months with the lowest visibility are January, February, March, April, May, June, September, October, November and December (5mi).
