September weather forecast
Bridgeport, WA

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Weather in September

September, the first month of the autumn in Bridgeport, is also an agreeable month, with an average temperature varying between 52.2°F (11.2°C) and 72.5°F (22.5°C).

Temperature

The beginning of September involves a decrease in the average high-temperature, transitioning from a warm 84.2°F (29°C) in August to an agreeable 72.5°F (22.5°C). The average low-temperature, in September, is a cool 52.2°F (11.2°C).

Humidity

In September, the average relative humidity in Bridgeport is 46%.

Rainfall

In Bridgeport, in September, it is raining for 5.6 days, with typically 0.43" (11mm) of accumulated precipitation. In Bridgeport, Washington, during the entire year, the rain falls for 94.9 days and collects up to 8.9" (226mm) of precipitation.

Snowfall

In Bridgeport, snow does not fall in April through October.

Daylight

In Bridgeport, the average length of the day in September is 12h and 33min.
On the first day of the month, sunrise is at 6:17 am and sunset at 7:38 pm. On the last day of September, sunrise is at 6:57 am and sunset at 6:39 pm PDT.

Sunshine

The average sunshine in September is 10.7h.

UV index

In September, the average daily maximum UV index is 4. A UV Index value of 3 to 5 symbolizes a moderate health risk from unsafe exposure to UV radiation for the ordinary person.
Note: A maximum high UV index of 4 in September translates into the following recommendations:
Guard yourself - Avoiding sunburn is suggested. Direct Sun exposure should be minimized especially during midday when radiation is most intense. Combat UV radiation's detrimental effects with sun-safe clothing and UV-blocking eyewear.
Updated: Aug 22, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are September temperatures?

Bridgeport in September has an average high-temperature of 72.5°F (22.5°C) and an average low-temperature of 52.2°F (11.2°C).

What is the average humidity in September?

In September, the average relative humidity is 46%.

How many days does it rain in September?

In September, the rain falls for 5.6 days. Throughout September, 0.43" (11mm) of precipitation is accumulated.

When it does not snow?

In Bridgeport, snow does not fall in April through October.

What is the average length of the day in September?

The average day length in September is 12h and 33min.

When is the sunrise / sunset in September?

On the first day of September in Bridgeport, sunrise is at 6:17 am and sunset at 7:38 pm. On the last day of the month, sunrise is at 6:57 am and sunset at 6:39 pm PDT.

How many hours of sunshine does Bridgeport have in September?

In September, the average sunshine duration is 10.7h.

What is the UV index intensity in September?

In Bridgeport, the average daily maximum UV index in September is 4. A UV Index value of 3 to 5 symbolizes a medium health risk from unsafe exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in September
Bridgeport, WA

Average temperature in September - Bridgeport, WA
  • Average high temperature in September: 72.5°F

The warmest month (with the highest average high temperature) is July (84.7°F).
The month with the lowest average high temperature is December (30.9°F).

  • Average low temperature in September: 52.2°F

The month with the highest average low temperature is August (59.7°F).
The coldest months (with the lowest average low temperature) are January and December (20.7°F).

Average pressure in September
Bridgeport, WA

Average pressure in September - Bridgeport, WA
  • Average pressure in September: 29.96"Hg

The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is August (29.92"Hg).

Average wind speed in September
Bridgeport, WA

Average wind speed in September - Bridgeport, WA
  • Average wind speed in September: 5.3mph

The windiest month (with the highest average wind speed) is April (6.2mph).
The calmest month (with the lowest average wind speed) is January (4mph).

Average humidity in September
Bridgeport, WA

Average humidity in September - Bridgeport, WA
  • Average humidity in September: 46%

The month with the highest relative humidity is January (90%).
The months with the lowest relative humidity are July and August (37%).

Average rainfall in September
Bridgeport, WA

Average rainfall in September - Bridgeport, WA
  • Average rainfall in September: 0.43"

The wettest month (with the highest rainfall) is December (1.22").
The driest month (with the least rainfall) is July (0.16").

Average rainfall days in September
Bridgeport, WA

Average rainfall days in September - Bridgeport, WA
  • Average rainfall days in September: 5.6 days

The month with the highest number of rainy days is March (12.2 days).
The month with the least rainy days is August (3.2 days).

Average snowfall in September
Bridgeport, WA

Average snowfall in September - Bridgeport, WA
  • Average snowfall in September: 0"

The month with the highest snowfall is December (4.17").
The months with the least snowfall are April, May, June, July, August, September and October (0").

Average snowfall days in September
Bridgeport, WA

Average snowfall days in September - Bridgeport, WA
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is December (8.8 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
Bridgeport, WA

Average daylight in September / Average sunshine in September - Bridgeport, WA
  • Average daylight in September: 12h and 4min

The month with the longest days is June (Average daylight: 16h and 0min).
The month with the shortest days is December (Average daylight: 8h and 30min).

  • Average sunshine in September: 10h and 4min

The months with the most sunshine are July and August (Average sunshine: 12h and 0min).
The month with the least sunshine is January (Average sunshine: 3h and 48min).

Average sunshine days in September
Bridgeport, WA

Average sunshine days in September - Bridgeport, WA
  • Average sunshine days in September: 23.3 days

The month with the most sunshine days is July (26.4 days).
The month with the least sunshine days is February (15.6 days).

Average UV index in September
Bridgeport, WA

Average UV index in September - Bridgeport, 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 February, November and December (UV index 1).

Average cloud cover in September
Bridgeport, WA

Average cloud cover in September - Bridgeport, WA
  • Average cloud cover in September: 19

The month with the most cloud cover is January (Cloud cover 57).
The months with the least cloud cover are July and August (Cloud cover 12).

Average visibility in September
Bridgeport, WA

Average visibility in September - Bridgeport, WA
  • Average visibility in September: 6mi

The months with the highest visibility are March, April, May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January, February and December (4mi).

Bridgeport, Washington, USA

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