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 September's arrival, West Pasco's weather changes as the average high-temperature falls from a tropical 89.2°F (31.8°C) in August to a warm 77.9°F (25.5°C). In West Pasco, an average low-temperature of 57°F (13.9°C) is recorded during September nights.Humidity
In West Pasco, Washington, the average relative humidity in September is 43%.Rainfall
In West Pasco, in September, during 4.6 rainfall days, 0.24" (6mm) of precipitation is typically accumulated. In West Pasco, during the entire year, the rain falls for 102.8 days and collects up to 7.32" (186mm) of precipitation.Snowfall
In West Pasco, snow does not fall in April through October.Daylight
In West Pasco, Washington, the average length of the day in September is 12h and 31min.On the first day of the month, sunrise is at 6:18 am and sunset at 7:34 pm. On the last day of September, sunrise is at 6:55 am and sunset at 6:37 pm PDT.
Sunshine
The average sunshine in September in West Pasco, Washington, is 10.7h.UV index
The average daily maximum UV index in September is 5. A UV Index value of 3 to 5 symbolizes a medium health hazard from unsafe exposure to UV radiation for ordinary individuals.Note: A maximum daily UV index of 5 during September morphs into the following directions:
Take necessary precautions - Defending against sun damage is advocated. For skin protection, it's recommended to minimize Sun exposure during its peak hours around midday. Select sunglasses that boast both UVA and UVB protection to limit the adverse effects of the sun on the eyes.
Frequently asked questions
What are the temperatures in West Pasco in September?
What is the average humidity in September in West Pasco?
How many days does it rain in September in West Pasco?
When it does not snow in West Pasco?
How many hours of daylight does West Pasco have in September?
What time are sunrise and sunset in September in West Pasco?
How many hours of sunshine does West Pasco have in September?
What is the UV index reading in September in West Pasco?
Average temperature in September
West Pasco, WA
- Average high temperature in September: 77.9°F
The warmest month (with the highest average high temperature) is July (90.1°F).
The month with the lowest average high temperature is December (38.3°F).
- Average low temperature in September: 57°F
The month with the highest average low temperature is August (64°F).
The coldest month (with the lowest average low temperature) is December (27.9°F).
Average pressure in September
West Pasco, WA
- Average pressure in September: 29.95"Hg
The month with the highest atmospheric pressure is January (30.19"Hg).
The month with the lowest atmospheric pressure is August (29.91"Hg).
Average wind speed in September
West Pasco, WA
- Average wind speed in September: 6.7mph
The windiest month (with the highest average wind speed) is April (8.5mph).
The calmest month (with the lowest average wind speed) is December (5.8mph).
Average humidity in September
West Pasco, WA
- Average humidity in September: 43%
The month with the highest relative humidity is January (80%).
The month with the lowest relative humidity is July (35%).
Average rainfall in September
West Pasco, WA
- Average rainfall in September: 0.24"
The wettest months (with the highest rainfall) are March and December (0.94").
The driest month (with the least rainfall) is July (0.2").
Average rainfall days in September
West Pasco, WA
- Average rainfall days in September: 4.6 days
The month with the highest number of rainy days is March (13.3 days).
The month with the least rainy days is July (3.5 days).
Average snowfall in September
West Pasco, WA
- Average snowfall in September: 0"
The month with the highest snowfall is February (2.2").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in September
West Pasco, WA
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is December (3.1 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).
Average daylight in September /
Average sunshine in September
West Pasco, WA
- Average daylight in September: 12h and 3min
The month with the longest days is June (Average daylight: 15h and 42min).
The month with the shortest days is December (Average daylight: 8h and 42min).
- Average sunshine in September: 10h and 4min
The month with the most sunshine is July (Average sunshine: 12h and 6min).
The month with the least sunshine is January (Average sunshine: 5h and 24min).
Average sunshine days in September
West Pasco, WA
- Average sunshine days in September: 24 days
The month with the most sunshine days is July (25.7 days).
The month with the least sunshine days is March (15.4 days).
Average UV index in September
West Pasco, WA
- Average UV index in September: 5
The month with the highest UV index is July (UV index 7).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in September
West Pasco, WA
- Average cloud cover in September: 16
The month with the most cloud cover is January (Cloud cover 44).
The month with the least cloud cover is July (Cloud cover 9).
Average visibility in September
West Pasco, 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).
West Pasco, Washington, USA
Weather forecast for your location
2. Allow the app to use your location
