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
The start of September comes with a reduction in the average high-temperature, receding from a warm 85.1°F (29.5°C) in August to a still moderately hot 74.3°F (23.5°C). Throughout September, the temperature in Odessa, Washington, tends to fall to a consistent average low of 56.3°F (13.5°C).Humidity
In September, the average relative humidity is 42%.Rainfall
In Odessa, Washington, during September, the rain falls for 6.6 days and regularly aggregates up to 0.39" (10mm) of precipitation. In Odessa, during the entire year, the rain falls for 109 days and collects up to 10.59" (269mm) of precipitation.Snowfall
Months with snowfall are January through April, September through December. September is the first month it typically snows. Throughout September, in the average 0.1 snowfall days, it receives 0.04" (1mm) of snow. In Odessa, during the entire year, snow falls for 28.2 days and aggregates up to 12.48" (317mm) of snow.Daylight
In Odessa, the average length of the day in September is 12h and 32min.On the first day of September in Odessa, sunrise is at 6:14 am and sunset at 7:34 pm. On the last day of the month, sunrise is at 6:53 am and sunset at 6:35 pm PDT.
Sunshine
In September, the average sunshine is 10.5h.UV index
In September, the average daily maximum UV index is 4. A UV Index estimate of 3 to 5 represents a medium health hazard from exposure to the Sun's UV radiation for ordinary individuals.Note: In September, a regular UV index of 4 translates into these guidelines:
Act with care - Obligation to protect against skin and eye damage is highlighted. Considering the harmful UV rays from the Sun during midday, it's essential to reduce exposure. Protect your eyes, ears, face, and neck from the Sun by wearing a wide-brimmed hat. Be mindful! The reflection from snow can increase the Sun's UV radiation nearly twice.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the usual temperature for Odessa in September?
What is the average humidity in September in Odessa?
How many days does it rain in September in Odessa?
When does it start snowing in Odessa?
What is the average length of the day in September in Odessa?
When is the sunrise / sunset in September in Odessa?
How many hours of sunshine does Odessa have in September?
What is the UV index intensity in September in Odessa?
Average temperature in September
Odessa, WA
- Average high temperature in September: 74.3°F
The warmest month (with the highest average high temperature) is July (85.6°F).
The month with the lowest average high temperature is December (33.8°F).
- Average low temperature in September: 56.3°F
The month with the highest average low temperature is August (64.6°F).
The coldest month (with the lowest average low temperature) is December (25.2°F).
Average pressure in September
Odessa, 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 (29.9"Hg).
Average wind speed in September
Odessa, WA
- Average wind speed in September: 8mph
The windiest month (with the highest average wind speed) is March (9.8mph).
The calmest month (with the lowest average wind speed) is August (7.3mph).
Average humidity in September
Odessa, WA
- Average humidity in September: 42%
The month with the highest relative humidity is January (85%).
The month with the lowest relative humidity is August (34%).
Average rainfall in September
Odessa, WA
- Average rainfall in September: 0.39"
The wettest month (with the highest rainfall) is March (1.38").
The driest months (with the least rainfall) are July and August (0.31").
Average rainfall days in September
Odessa, WA
- Average rainfall days in September: 6.6 days
The month with the highest number of rainy days is March (13.6 days).
The month with the least rainy days is July (4.2 days).
Average snowfall in September
Odessa, WA
- Average snowfall in September: 0.04"
The month with the highest snowfall is February (3.54").
The months with the least snowfall are May, June, July and August (0").
Average snowfall days in September
Odessa, WA
- Average snowfall days in September: 0.1 days
The month with the highest number of snowfall days is December (7.8 days).
The months with the least snowfall days are May, June, July and August (0 days).
Average daylight in September /
Average sunshine in September
Odessa, 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: 10h and 3min
The months with the most sunshine are July and August (Average sunshine: 12h and 0min).
The month with the least sunshine is December (Average sunshine: 4h and 36min).
Average sunshine days in September
Odessa, WA
- Average sunshine days in September: 21.9 days
The month with the most sunshine days is July (25.3 days).
The month with the least sunshine days is March (14.2 days).
Average UV index in September
Odessa, WA
- Average UV index in September: 4
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
Odessa, WA
- Average cloud cover in September: 18
The month with the most cloud cover is January (Cloud cover 52).
The month with the least cloud cover is July (Cloud cover 11).
Average visibility in September
Odessa, WA
- Average visibility in September: 6mi
The months with the highest visibility are February, March, April, May, June, July, August, September, October, November and December (6mi).
The month with the lowest visibility is January (5mi).
Odessa, Washington, USA
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