September weather forecastBillings, MO
September
Weather in September
The first month of the autumn, September, is also a moderately hot month in Billings, Missouri, with an average temperature fluctuating between 79.9°F (26.6°C) and 59.9°F (15.5°C).Temperature
In September, the meteorological conditions change slightly, with the average high-temperature moving from a hot 87.3°F (30.7°C) in August to a warm 79.9°F (26.6°C). During September, the average low-temperature is a moderate 59.9°F (15.5°C).Humidity
In September, the average relative humidity is 74%.Rainfall
In Billings, in September, during 11.6 rainfall days, 2.2" (56mm) of precipitation is typically accumulated. Throughout the year, there are 149.3 rainfall days, and 34.45" (875mm) of precipitation is accumulated.Snowfall
In Billings, snow does not fall in June through October.Daylight
In Billings, the average length of the day in September is 12h and 25min.On the first day of September, sunrise is at 6:45 am and sunset at 7:42 pm. On the last day of the month, sunrise is at 7:09 am and sunset at 6:58 pm CDT.
Sunshine
In September, the average sunshine is 9.4h.UV index
In Billings, the average daily maximum UV index in September is 5. A UV Index estimate of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV rays for ordinary individuals.Note: A maximum high UV index of 5 in September translates into the following recommendations:
Make use of precautions - Shielding skin and eyes from injury is a requirement. Considering the harmful UV rays from the Sun during midday, it's essential to reduce exposure. Experience reduced UV exposure by about half when donning a wide-brim hat.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Billings, 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 (42.3°F).
- Average low temperature in September: 59.9°F
The month with the highest average low temperature is July (68.5°F).
The coldest month (with the lowest average low temperature) is January (26.4°F).
Average pressure in September
Billings, 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).
Average wind speed in September
Billings, MO
- Average wind speed in September: 6.7mph
The windiest month (with the highest average wind speed) is March (9.8mph).
The calmest month (with the lowest average wind speed) is July (6.2mph).
Average humidity in September
Billings, MO
- Average humidity in September: 74%
The month with the highest relative humidity is May (78%).
The months with the lowest relative humidity are July, August and October (73%).
Average rainfall in September
Billings, MO
- Average rainfall in September: 2.2"
The wettest month (with the highest rainfall) is May (5.16").
The driest month (with the least rainfall) is February (1.69").
Average rainfall days in September
Billings, MO
- Average rainfall days in September: 11.6 days
The month with the highest number of rainy days is May (17 days).
The month with the least rainy days is January (7.2 days).
Average snowfall in September
Billings, MO
- Average snowfall in September: 0"
The month with the highest snowfall is January (2.09").
The months with the least snowfall are June, July, August, September and October (0").
Average snowfall days in September
Billings, 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).
Average daylight in September /
Average sunshine in September
Billings, MO
- Average daylight in September: 12h and 24min
The month with the longest days is June (Average daylight: 14h and 42min).
The month with the shortest days is December (Average daylight: 9h and 42min).
- Average sunshine in September: 9h and 24min
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 12min).
Average sunshine days in September
Billings, MO
- Average sunshine days in September: 16.4 days
The month with the most sunshine days is December (20.6 days).
The month with the least sunshine days is July (12.1 days).
Average UV index in September
Billings, MO
- Average UV index in September: 5
The months with the highest UV index are May, 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
Billings, MO
- Average cloud cover in September: 30
The month with the most cloud cover is March (Cloud cover 48).
The months with the least cloud cover are July and August (Cloud cover 27).
Average visibility in September
Billings, 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).





