September weather forecast
Stratford, WA

Weather in September

September, the first month of the autumn in Stratford, is still a warm month, with temperature in the range of an average low of 54.1°F (12.3°C) and an average high of 75.2°F (24°C).

Temperature

In Stratford, Washington, the average high-temperature in September drops from a hot 86.7°F (30.4°C) in August to a moderately hot 75.2°F (24°C). The average low-temperature, in Stratford, is 54.1°F (12.3°C).

Humidity

In Stratford, the average relative humidity in September is 45%.

Rainfall

In Stratford, during 5.4 rainfall days, 0.35" (9mm) of precipitation is typically accumulated. In Stratford, during the entire year, the rain falls for 95.2 days and collects up to 7.91" (201mm) of precipitation.

Snowfall

January through April, September, November and December are months with snowfall in Stratford, Washington. September is the first month it typically snows. Throughout September, in the average 0.2 snowfall days, it receives 0.12" (3mm) of snow. Throughout the year, there are 23.5 snowfall days, and 11.38" (289mm) of snow is accumulated.

Daylight

In September, the average length of the day is 12h and 32min.
On the first day of September, sunrise is at 6:16 am and sunset at 7:38 pm. On the last day of the month, sunrise is at 6:54 am and sunset at 6:39 pm PDT.

Sunshine

In Stratford, Washington, the average sunshine in September is 10.8h.

UV index

In Stratford, the average daily maximum UV index in September is 4. A UV Index of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV rays for the ordinary person.
Note: The daily maximum UV index of 4 in September interpret into the following advice:
Take precautions - Protection against sun damage is advised. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes. Caution! The reflection of snow can nearly double the intensity of the Sun's UV radiation.
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FAQ

What is the temperature in September in Stratford?

In September, in Stratford, the average high-temperature is 75.2°F (24°C), and the average low-temperature is 54.1°F (12.3°C).

What is the average humidity in September in Stratford?

The average relative humidity in September in Stratford is 45%.

How much does it rain in Stratford in September?

In September, in Stratford, Washington, the rain falls for 5.4 days. Throughout September, 0.35" (9mm) of precipitation is accumulated.

When does it start snowing in Stratford?

September is the first month it typically snows in Stratford. Throughout September, in the average 0.2 snowfall days, it receives 0.12" (3mm) of snow.

What is the average length of the day in September in Stratford?

In September, the average day length in Stratford is 12h and 32min.

When are sunrise and sunset in September in Stratford?

On the first day of September in Stratford, sunrise is at 6:16 am and sunset at 7:38 pm. On the last day of the month, sunrise is at 6:54 am and sunset at 6:39 pm PDT.

How many hours of sunshine does Stratford have in September?

In Stratford, the average sunshine duration in September is 10.8h.

How high is the UV index in September in Stratford?

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

Average temperature in September
Stratford, WA

Average temperature in September - Stratford, WA
  • Average high temperature in September: 75.2°F

The warmest month (with the highest average high temperature) is July (87.1°F).
The month with the lowest average high temperature is December (33.4°F).

  • Average low temperature in September: 54.1°F

The month with the highest average low temperature is August (61.3°F).
The coldest month (with the lowest average low temperature) is December (23.2°F).

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Average pressure in September
Stratford, WA

Average pressure in September - Stratford, 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 (29.91"Hg).

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Average wind speed in September
Stratford, WA

Average wind speed in September - Stratford, WA
  • Average wind speed in September: 6.3mph

The windiest month (with the highest average wind speed) is April (7.6mph).
The calmest months (with the lowest average wind speed) are January and December (5.3mph).

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Average humidity in September
Stratford, WA

Average humidity in September - Stratford, WA
  • Average humidity in September: 45%

The month with the highest relative humidity is January (86%).
The months with the lowest relative humidity are July and August (37%).

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Average rainfall in September
Stratford, WA

Average rainfall in September - Stratford, WA
  • Average rainfall in September: 0.35"

The wettest month (with the highest rainfall) is January (1.02").
The driest month (with the least rainfall) is August (0.24").

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Average rainfall days in September
Stratford, WA

Average rainfall days in September - Stratford, WA
  • Average rainfall days in September: 5.4 days

The month with the highest number of rainy days is March (12.3 days).
The month with the least rainy days is August (4.2 days).

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Average snowfall in September
Stratford, WA

Average snowfall in September - Stratford, WA
  • Average snowfall in September: 0.12"

The month with the highest snowfall is December (3.98").
The months with the least snowfall are May, June, July, August and October (0").

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Average snowfall days in September
Stratford, WA

Average snowfall days in September - Stratford, WA
  • Average snowfall days in September: 0.2 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).

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Average daylight in September /
Average sunshine in September
Stratford, WA

Average daylight in September / Average sunshine in September - Stratford, WA
  • Average daylight in September: 12h and 32min

The month with the longest days is June (Average daylight: 15h and 53min).
The month with the shortest days is December (Average daylight: 8h and 32min).

  • Average sunshine in September: 10h and 48min

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: 4h and 30min).

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Average sunshine days in September
Stratford, WA

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

The month with the most sunshine days is July (25.8 days).
The month with the least sunshine days is March (15.6 days).

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Average UV index in September
Stratford, WA

Average UV index in September - Stratford, 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).

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Average cloud cover in September
Stratford, WA

Average cloud cover in September - Stratford, WA
  • Average cloud cover in September: 17

The month with the most cloud cover is January (Cloud cover 53).
The months with the least cloud cover are July and August (Cloud cover 11).

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Average visibility in September
Stratford, WA

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

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

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