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
As Amanda Park transitions into September, the average high-temperature stands at a still refreshing 63.1°F (17.3°C), offering little variation from the preceding month. The temperature lowers to an average of 51.8°F (11°C) during September nights.Humidity
The average relative humidity in September is 81%.Rainfall
In Amanda Park, during September, the rain falls for 11.3 days and regularly aggregates up to 1.73" (44mm) of precipitation. In Amanda Park, during the entire year, the rain falls for 169.3 days and collects up to 37.83" (961mm) of precipitation.Snowfall
April through November are months without snowfall.Daylight
The average length of the day in September is 12h and 32min.On the first day of the month, sunrise is at 6:35 am and sunset at 7:55 pm. On the last day of September, sunrise is at 7:14 am and sunset at 6:56 pm PDT.
Sunshine
The average sunshine in September is 8.7h.UV index
The months with the highest UV index are May through September, with an average maximum UV index of 4. A UV Index reading of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV radiation for average individuals.Note: The maximum UV index of 4 during September translates into these guidelines:
Adopt protective measures - Suggestions to resist sunburn are offered. The Sun's most harmful UV rays are emitted around midday; avoid staying outdoors for long during this time. To mitigate harm from sun exposure, pick sunglasses offering UVA and UVB defense.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the average September temperature?
What is the average humidity in September?
How much does it rain in September?
When it does not snow?
How many hours of daylight does Amanda Park have in September?
When is the sunrise / sunset in September?
How many hours of sunshine does Amanda Park have in September?
When is the highest UV index?
How high is the UV index in September?
Average temperature in September
Amanda Park, WA
- Average high temperature in September: 63.1°F
The warmest month (with the highest average high temperature) is August (65.8°F).
The month with the lowest average high temperature is December (45.1°F).
- Average low temperature in September: 51.8°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 (38.7°F).
Average pressure in September
Amanda Park, WA
- Average pressure in September: 30.02"Hg
The month with the highest atmospheric pressure is July (30.08"Hg).
The month with the lowest atmospheric pressure is March (29.99"Hg).
Average wind speed in September
Amanda Park, WA
- Average wind speed in September: 6.1mph
The windiest month (with the highest average wind speed) is January (9.4mph).
The calmest month (with the lowest average wind speed) is August (5.7mph).
Average humidity in September
Amanda Park, WA
- Average humidity in September: 81%
The months with the highest relative humidity are January, November and December (84%).
The month with the lowest relative humidity is May (80%).
Average rainfall in September
Amanda Park, WA
- Average rainfall in September: 1.73"
The wettest month (with the highest rainfall) is January (6.89").
The driest month (with the least rainfall) is July (0.51").
Average rainfall days in September
Amanda Park, WA
- Average rainfall days in September: 11.3 days
The month with the highest number of rainy days is November (19.4 days).
The month with the least rainy days is August (6.8 days).
Average snowfall in September
Amanda Park, WA
- Average snowfall in September: 0"
The month with the highest snowfall is February (0.59").
The months with the least snowfall are April, May, June, July, August, September, October and November (0").
Average snowfall days in September
Amanda Park, WA
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (1.5 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
Amanda Park, WA
- Average daylight in September: 12h and 3min
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 30min).
- Average sunshine in September: 8h and 4min
The months with the most sunshine are July and August (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 3h and 36min).
Average sunshine days in September
Amanda Park, WA
- Average sunshine days in September: 16.5 days
The month with the most sunshine days is August (21.4 days).
The month with the least sunshine days is November (9.4 days).
Average UV index in September
Amanda Park, WA
- Average UV index in September: 4
The months with the highest UV index are May, June, July, August and September (UV index 4).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in September
Amanda Park, WA
- Average cloud cover in September: 36
The month with the most cloud cover is January (Cloud cover 61).
The month with the least cloud cover is August (Cloud cover 31).
Average visibility in September
Amanda Park, WA
- Average visibility in September: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
Amanda Park, Washington, USA
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