September weather forecastPolo, MO
September
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.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
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: 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: 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: 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: 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: 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: 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: 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: 12h and 24min
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 12min
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: 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: 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: 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: 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).
