September weather forecast
Midland, WA

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Weather in September

The first month of the autumn, September, is also an agreeable month in Midland, Washington, with an average temperature ranging between max 70.7°F (21.5°C) and min 49.1°F (9.5°C).

Temperature

With the arrival of September, Midland notices a mild change in the average high-temperature, sliding from August's moderately hot 78.4°F (25.8°C) to an agreeable 70.7°F (21.5°C). Midland's nighttime average of 49.1°F (9.5°C) during September reflects a substantial decrease from the daytime temperature.

Humidity

In September, the average relative humidity in Midland is 75%.

Rainfall

In Midland, in September, during 12.3 rainfall days, 1.57" (40mm) of precipitation is typically accumulated. In Midland, during the entire year, the rain falls for 176.3 days and collects up to 30.28" (769mm) of precipitation.

Snowfall

In Midland, snow does not fall in May through October.

Daylight

In Midland, Washington, the average length of the day in September is 12h and 32min.
On the first day of September, sunrise is at 6:29 am and sunset at 7:48 pm. On the last day of the month, sunrise is at 7:08 am and sunset at 6:50 pm PDT.

Sunshine

In Midland, the average sunshine in September is 9.1h.

UV index

In Midland, the average daily maximum UV index in September is 4. A UV Index estimate of 3 to 5 represents a medium health hazard from exposure to the Sun's UV radiation for average individuals.
Note: A maximum high UV index of 4 in September translates into the following recommendations:
Take precautions. Light skin individuals may get burned in less than 30 minutes. Solar radiation is at its peak intensity during midday, so it's advisable to stay indoors or in the shade. For excellent sun protection for the eyes, ears, face, and neck, consider a wide-brim hat.
Updated: Aug 28, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are the temperatures in September?

The average high-temperature and low-temperature during September are 70.7°F (21.5°C) and 49.1°F (9.5°C) respectively.

What is the average humidity in September?

The average relative humidity in September is 75%.

How many days does it rain in September?

In Midland, in September, during 12.3 rainfall days, 1.57" (40mm) of precipitation is typically accumulated.

When it does not snow?

In Midland, snow does not fall in May through October.

How many hours of daylight does Midland have in September?

The average day length in September is 12h and 32min.

When is the sunrise / sunset in September?

On the first day of September, sunrise is at 6:29 am and sunset at 7:48 pm. On the last day of the month, sunrise is at 7:08 am and sunset at 6:50 pm PDT.

How long on average sun shines in September?

The average sunshine duration in September is 9.1h.

What is the UV index intensity in September?

In Midland, the average daily maximum UV index in September is 4. A UV Index estimate of 3 to 5 represents a moderate health threat from unprotected exposure to UV radiation.
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
Midland, WA

Average temperature in September - Midland, WA
  • Average high temperature in September: 70.7°F

The warmest month (with the highest average high temperature) is August (78.4°F).
The month with the lowest average high temperature is December (43.7°F).

  • Average low temperature in September: 49.1°F

The month with the highest average low temperature is August (52.5°F).
The coldest month (with the lowest average low temperature) is February (34.2°F).

Average pressure in September
Midland, WA

Average pressure in September - Midland, WA
  • Average pressure in September: 30.01"Hg

The month with the highest atmospheric pressure is January (30.1"Hg).
The months with the lowest atmospheric pressure are March, August and September (30.01"Hg).

Average wind speed in September
Midland, WA

Average wind speed in September - Midland, WA
  • Average wind speed in September: 4mph

The windiest month (with the highest average wind speed) is March (5.2mph).
The calmest month (with the lowest average wind speed) is August (3.7mph).

Average humidity in September
Midland, WA

Average humidity in September - Midland, WA
  • Average humidity in September: 75%

The months with the highest relative humidity are January and December (87%).
The month with the lowest relative humidity is July (69%).

Average rainfall in September
Midland, WA

Average rainfall in September - Midland, WA
  • Average rainfall in September: 1.57"

The wettest month (with the highest rainfall) is December (4.76").
The driest month (with the least rainfall) is July (0.39").

Average rainfall days in September
Midland, WA

Average rainfall days in September - Midland, WA
  • Average rainfall days in September: 12.3 days

The month with the highest number of rainy days is March (19.9 days).
The month with the least rainy days is August (5.1 days).

Average snowfall in September
Midland, WA

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

The month with the highest snowfall is February (2.09").
The months with the least snowfall are May, June, July, August, September and October (0").

Average snowfall days in September
Midland, WA

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

The month with the highest number of snowfall days is February (3.4 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
Midland, WA

Average daylight in September / Average sunshine in September - Midland, 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 36min).

  • Average sunshine in September: 9h and 1min

The month with the most sunshine is August (Average sunshine: 10h and 36min).
The month with the least sunshine is December (Average sunshine: 4h and 0min).

Average sunshine days in September
Midland, WA

Average sunshine days in September - Midland, WA
  • Average sunshine days in September: 16.2 days

The month with the most sunshine days is August (23.3 days).
The months with the least sunshine days are February and March (9 days).

Average UV index in September
Midland, WA

Average UV index in September - Midland, WA
  • Average UV index in September: 4

The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).

Average cloud cover in September
Midland, WA

Average cloud cover in September - Midland, WA
  • Average cloud cover in September: 37

The months with the most cloud cover are January and December (Cloud cover 58).
The month with the least cloud cover is August (Cloud cover 27).

Average visibility in September
Midland, WA

Average visibility in September - Midland, WA
  • Average visibility in September: 5mi

The months with the highest visibility are July and August (6mi).
The months with the lowest visibility are January, February, March, April, May, June, September, October, November and December (5mi).

Midland, Washington, USA

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