September weather forecast
Polo, MO

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Weather in September

September, the first month of the autumn in Polo, is still a warm month, with an average temperature varying between 58.5°F (14.7°C) and 77.7°F (25.4°C).

Temperature

With the onset of September, Polo experiences a modest temperature adjustment, with the average high-temperature gently receding from a warm 83.3°F (28.5°C) in August to a still moderately hot 77.7°F (25.4°C). Polo in September anticipates an average nighttime temperature of 58.5°F (14.7°C).

Humidity

The average relative humidity in September is 76%.

Rainfall

In Polo, during September, the rain falls for 12.1 days and regularly aggregates up to 2.36" (60mm) of precipitation. In Polo, during the entire year, the rain falls for 133.9 days and collects up to 27.64" (702mm) of precipitation.

Snowfall

In Polo, snow does not fall in June through September.

Daylight

In September, the average length of the day in Polo is 12h and 26min.
On the first day of September, sunrise is at 6:45 am and sunset at 7:46 pm. On the last day of the month, sunrise is at 7:12 am and sunset at 6:59 pm CDT.

Sunshine

The average sunshine in September is 9.2h.

UV index

In September, the average daily maximum UV index is 5. A UV Index of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV radiation for ordinary individuals.
Note: A daily high UV index of 5 in September leads to these guidelines:
Preventative actions are necessary - The mandate to avoid skin and eye damage is in place. Avoiding the Sun during its peak radiation time around midday is a healthy practice. On sunny days, it's ideal to wear sunglasses that filter out UVA and UVB rays.
Updated: Aug 21, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the average September temperature?

In September, the average high-temperature and low-temperature in Polo are 77.7°F (25.4°C) and 58.5°F (14.7°C) respectively. The average heat index (a.k.a. 'felt air temperature', 'feels like'), which combines air temperature and relative humidity, in August is estimated at 91.4°F (33°C).

What is the average humidity in September?

In September, the average relative humidity is 76%.

How many days does it rain in September?

In Polo, in September, during 12.1 rainfall days, 2.36" (60mm) of precipitation is typically accumulated.

When it does not snow?

In Polo, snow does not fall in June through September.

Does it snow in Polo in September?

In Polo, in September, it doesn't snow. In October, it regularly snows.

How many hours of daylight does Polo have in September?

The average day length in September is 12h and 26min.

What time are sunrise and sunset in September in Polo?

In September, on the first day of the month, sunrise is at 6:45 am and sunset at 7:46 pm. On the last day of the month, sunrise is at 7:12 am and sunset at 6:59 pm CDT.

How many hours of sunshine does Polo have in September?

In September, the average sunshine duration in Polo is 9.2h.

What is the UV index intensity in September?

In Polo, 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 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
Polo, MO

Average temperature in September - Polo, MO
  • Average high temperature in September: 77.7°F

The warmest month (with the highest average high temperature) is July (85.5°F).
The month with the lowest average high temperature is January (35.4°F).

  • Average low temperature in September: 58.5°F

The month with the highest average low temperature is July (67.8°F).
The coldest month (with the lowest average low temperature) is January (21.2°F).

Average pressure in September
Polo, MO

Average pressure in September - Polo, MO
  • Average pressure in September: 30.01"Hg

The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.89"Hg).

Average wind speed in September
Polo, MO

Average wind speed in September - Polo, MO
  • Average wind speed in September: 7.1mph

The windiest month (with the highest average wind speed) is March (9.9mph).
The calmest month (with the lowest average wind speed) is August (6.2mph).

Average humidity in September
Polo, MO

Average humidity in September - Polo, MO
  • Average humidity in September: 76%

The months with the highest relative humidity are May and June (80%).
The months with the lowest relative humidity are October and November (71%).

Average rainfall in September
Polo, MO

Average rainfall in September - Polo, MO
  • Average rainfall in September: 2.36"

The wettest month (with the highest rainfall) is May (3.86").
The driest month (with the least rainfall) is February (0.94").

Average rainfall days in September
Polo, MO

Average rainfall days in September - Polo, MO
  • Average rainfall days in September: 12.1 days

The month with the highest number of rainy days is May (16.9 days).
The month with the least rainy days is January (4.8 days).

Average snowfall in September
Polo, MO

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

The month with the highest snowfall is January (2.91").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in September
Polo, MO

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

The month with the highest number of snowfall days is January (5.9 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

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

The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 24min).

  • Average sunshine in September: 9h and 1min

The month with the most sunshine is July (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 4h and 54min).

Average sunshine days in September
Polo, MO

Average sunshine days in September - Polo, MO
  • Average sunshine days in September: 16.7 days

The month with the most sunshine days is December (21.5 days).
The month with the least sunshine days is May (11.7 days).

Average UV index in September
Polo, MO

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

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

Average cloud cover in September
Polo, MO

Average cloud cover in September - Polo, MO
  • Average cloud cover in September: 30

The month with the most cloud cover is March (Cloud cover 48).
The month with the least cloud cover is July (Cloud cover 27).

Average visibility in September
Polo, MO

Average visibility in September - Polo, 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).

Polo, Missouri, USA

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