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 August shifts into September, a minor alteration in temperatures is observed, with average highs reducing from a warm 76.5°F (24.7°C) to an agreeable 69.1°F (20.6°C). September's average low-temperature reading settles at a chilly 48.6°F (9.2°C).Humidity
In Lea Hill, the average relative humidity in September is 74%.Rainfall
In September, in Lea Hill, Washington, the rain falls for 11.8 days. Throughout September, 1.02" (26mm) of precipitation is accumulated. In Lea Hill, during the entire year, the rain falls for 162.5 days and collects up to 17.87" (454mm) of precipitation.Snowfall
May through October are months without snowfall.Daylight
In September, the average length of the day is 12h and 32min.On the first day of the month, sunrise is at 6:28 am and sunset at 7:48 pm. On the last day of September, sunrise is at 7:07 am and sunset at 6:49 pm PDT.
Sunshine
In Lea Hill, the average sunshine in September is 9.3h.UV index
In September, the average daily maximum UV index is 4. A UV Index reading of 3 to 5 represents a medium health hazard from unsafe exposure to UV radiation for ordinary individuals.Note: A maximum daily UV index of 4 during September morphs into the following directions:
Act with care - Obligation to protect against skin and eye damage is highlighted. Solar radiation is at its peak intensity during midday, so it's advisable to stay indoors or in the shade. Sun-related eye harm can be minimized with proper sunglasses offering UVA and UVB coverage.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the usual temperature for Lea Hill in September?
What is the average humidity in September?
How many days does it rain in September in Lea Hill?
When it does not snow?
How many hours of daylight does Lea Hill have in September?
When are sunrise and sunset in September?
How long on average sun shines in September in Lea Hill?
What is the UV index intensity in September?
Average temperature in September
Lea Hill, WA
- Average high temperature in September: 69.1°F
The warmest month (with the highest average high temperature) is August (76.5°F).
The month with the lowest average high temperature is December (41.9°F).
- Average low temperature in September: 48.6°F
The month with the highest average low temperature is August (51.4°F).
The coldest month (with the lowest average low temperature) is December (32.5°F).
Average pressure in September
Lea Hill, WA
- Average pressure in September: 30.01"Hg
The month with the highest atmospheric pressure is January (30.1"Hg).
The month with the lowest atmospheric pressure is August (30"Hg).
Average wind speed in September
Lea Hill, WA
- Average wind speed in September: 3.7mph
The windiest month (with the highest average wind speed) is January (4.9mph).
The calmest month (with the lowest average wind speed) is August (3.4mph).
Average humidity in September
Lea Hill, WA
- Average humidity in September: 74%
The months with the highest relative humidity are January, February and December (86%).
The month with the lowest relative humidity is July (69%).
Average rainfall in September
Lea Hill, WA
- Average rainfall in September: 1.02"
The wettest month (with the highest rainfall) is January (2.6").
The driest month (with the least rainfall) is July (0.39").
Average rainfall days in September
Lea Hill, WA
- Average rainfall days in September: 11.8 days
The month with the highest number of rainy days is November (17.5 days).
The month with the least rainy days is August (6.3 days).
Average snowfall in September
Lea Hill, WA
- Average snowfall in September: 0"
The month with the highest snowfall is February (0.79").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in September
Lea Hill, WA
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (2.7 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
Lea Hill, 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: 9h and 2min
The month with the most sunshine is August (Average sunshine: 10h and 54min).
The months with the least sunshine are January and December (Average sunshine: 4h and 18min).
Average sunshine days in September
Lea Hill, WA
- Average sunshine days in September: 16.3 days
The month with the most sunshine days is August (21.8 days).
The month with the least sunshine days is February (10.3 days).
Average UV index in September
Lea Hill, WA
- Average UV index in September: 4
The month with the highest UV index is July (UV index 5).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in September
Lea Hill, WA
- Average cloud cover in September: 35
The months with the most cloud cover are January and December (Cloud cover 56).
The month with the least cloud cover is August (Cloud cover 25).
Average visibility in September
Lea Hill, WA
- Average visibility in September: 5mi
The months with the highest visibility are July and August (6mi).
The month with the lowest visibility is December (4mi).
Lea Hill, Washington, USA
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