September weather forecast
Spokane, MO

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Weather in September

September, the first month of the autumn in Spokane, is also a moderately hot month, with an average temperature fluctuating between 59.7°F (15.4°C) and 79.9°F (26.6°C).

Temperature

The beginning of September brings a minor change in the average high-temperature, shifting from a hot 87.1°F (30.6°C) in August to a moderately hot 79.9°F (26.6°C). During September, Spokane witnesses a consistent average low-temperature of 59.7°F (15.4°C).

Humidity

The average relative humidity in September is 74%.

Rainfall

In Spokane, in September, during 12.9 rainfall days, 2.13" (54mm) of precipitation is typically accumulated. In Spokane, during the entire year, the rain falls for 151.2 days and collects up to 33.62" (854mm) of precipitation.

Snowfall

In Spokane, Missouri, snow does not fall in June through October.

Daylight

In Spokane, Missouri, the average length of the day in September is 12h and 24min.
On the first day of the month, sunrise is at 6:44 am and sunset at 7:41 pm. On the last day of September, sunrise is at 7:08 am and sunset at 6:57 pm CDT.

Sunshine

In Spokane, the average sunshine in September is 9.3h.

UV index

The average daily maximum UV index in September is 5. A UV Index of 3 to 5 symbolizes a medium health hazard from unsafe exposure to UV radiation for average individuals.
Note: During September, 5 as the daily maximum UV index converts into the following advice:
Adopt protective measures - Suggestions to resist sunburn are offered. During midday, the Sun's radiation is strongest, and it's advisable to reduce direct exposure. In the presence of strong sunlight, it's crucial to wear sunglasses that ward off UVA and UVB rays.
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Frequently asked questions

What are September temperatures in Spokane?

In Spokane, in September, the average high-temperature is 79.9°F (26.6°C), and the average low-temperature is 59.7°F (15.4°C). The average heat index (a.k.a. 'real feel', 'apparent temperature'), which represents the influence of relative humidity on air temperature, in August is appraised at 98.6°F (37°C).

What is the average humidity in September in Spokane?

In Spokane, the average relative humidity in September is 74%.

How many days does it rain in September in Spokane?

In Spokane, Missouri, in September, during 12.9 rainfall days, 2.13" (54mm) of precipitation is typically accumulated.

When it does not snow in Spokane?

In Spokane, snow does not fall in June through October.

How many hours of daylight does Spokane have in September?

In Spokane, Missouri, the average day length in September is 12h and 24min.

When is the sunrise / sunset in September in Spokane?

In September, on the first day of the month, sunrise is at 6:44 am and sunset at 7:41 pm. On the last day of the month, sunrise is at 7:08 am and sunset at 6:57 pm CDT.

How many hours of sunshine does Spokane have in September?

The average sunshine duration in September in Spokane, Missouri, is 9.3h.

What is the UV index intensity in September in Spokane?

In Spokane, the average daily maximum UV index in September is 5. A UV Index reading of 3 to 5 represents a medium hazard to health 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
Spokane, MO

Average temperature in September - Spokane, MO
  • Average high temperature in September: 79.9°F

The warmest month (with the highest average high temperature) is July (88.7°F).
The month with the lowest average high temperature is January (41.9°F).

  • Average low temperature in September: 59.7°F

The month with the highest average low temperature is July (68.4°F).
The coldest month (with the lowest average low temperature) is January (26.4°F).

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Average pressure in September
Spokane, MO

Average pressure in September - Spokane, MO
  • Average pressure in September: 30.03"Hg

The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).

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Average wind speed in September
Spokane, MO

Average wind speed in September - Spokane, MO
  • Average wind speed in September: 6.3mph

The windiest months (with the highest average wind speed) are January, February and March (9.3mph).
The calmest month (with the lowest average wind speed) is July (5.8mph).

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Average humidity in September
Spokane, MO

Average humidity in September - Spokane, MO
  • Average humidity in September: 74%

The month with the highest relative humidity is May (78%).
The months with the lowest relative humidity are August and October (73%).

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Average rainfall in September
Spokane, MO

Average rainfall in September - Spokane, MO
  • Average rainfall in September: 2.13"

The wettest month (with the highest rainfall) is May (4.49").
The driest month (with the least rainfall) is January (1.65").

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Average rainfall days in September
Spokane, MO

Average rainfall days in September - Spokane, MO
  • Average rainfall days in September: 12.9 days

The month with the highest number of rainy days is July (17.7 days).
The month with the least rainy days is January (7.3 days).

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Average snowfall in September
Spokane, MO

Average snowfall in September - Spokane, MO
  • Average snowfall in September: 0"

The month with the highest snowfall is January (2.36").
The months with the least snowfall are June, July, August, September and October (0").

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Average snowfall days in September
Spokane, MO

Average snowfall days in September - Spokane, MO
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is February (5.3 days).
The months with the least snowfall days are June, July, August and September (0 days).

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Average daylight in September /
Average sunshine in September
Spokane, MO

Average daylight in September / Average sunshine in September - Spokane, MO
  • Average daylight in September: 12h and 2min

The month with the longest days is June (Average daylight: 14h and 36min).
The month with the shortest days is December (Average daylight: 9h and 42min).

  • Average sunshine in September: 9h and 2min

The month with the most sunshine is June (Average sunshine: 10h and 36min).
The month with the least sunshine is January (Average sunshine: 5h and 6min).

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Average sunshine days in September
Spokane, MO

Average sunshine days in September - Spokane, MO
  • Average sunshine days in September: 14.6 days

The month with the most sunshine days is December (21 days).
The month with the least sunshine days is July (10.7 days).

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Average UV index in September
Spokane, MO

Average UV index in September - Spokane, MO
  • Average UV index in September: 5

The month with the highest UV index is June (UV index 7).
The months with the lowest UV index are January, February and December (UV index 2).

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Average cloud cover in September
Spokane, MO

Average cloud cover in September - Spokane, MO
  • Average cloud cover in September: 31

The month with the most cloud cover is March (Cloud cover 48).
The month with the least cloud cover is August (Cloud cover 28).

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Average visibility in September
Spokane, MO

Average visibility in September - Spokane, MO
  • Average visibility in September: 6mi

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

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Spokane, Missouri, USA

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