September weather forecastTunas, MO
September
Weather in September
The first month of the autumn, September, is still a warm month in Tunas, Missouri, with an average temperature varying between 79.9°F (26.6°C) and 59.9°F (15.5°C).Temperature
A subtle change in temperatures is noted as August gives way to September, with average highs reducing from a hot 86.5°F (30.3°C) to a warm 79.9°F (26.6°C). Throughout the month of September, Tunas witnesses an average low-temperature of 59.9°F (15.5°C).Humidity
In Tunas, the average relative humidity in September is 74%.Rainfall
In Tunas, during September, the rain falls for 13.2 days and regularly aggregates up to 2.17" (55mm) of precipitation. Throughout the year, there are 150.7 rainfall days, and 33.35" (847mm) of precipitation is accumulated.Snowfall
In Tunas, snow does not fall in June through September.Daylight
In Tunas, the average length of the day in September is 12h and 25min.On the first day of the month, sunrise is at 6:42 am and sunset at 7:40 pm. On the last day of September, sunrise is at 7:07 am and sunset at 6:56 pm CDT.
Sunshine
In Tunas, the average sunshine in September is 9.5h.UV index
In Tunas, the average daily maximum UV index in September is 5. A UV Index of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV radiation for the average person.Note: The maximum UV index of 5 during September translates into these guidelines:
Take necessary precautions - Protection from skin and eye injury is mandatory. To prevent harmful UV exposure, minimize direct contact with the Sun around midday. Always opt for UVA and UVB-resistant sunglasses on radiant days.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Tunas, MO
- Average high temperature in September: 79.9°F
The warmest month (with the highest average high temperature) is July (88.5°F).
The month with the lowest average high temperature is January (40.3°F).
- Average low temperature in September: 59.9°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 (25.5°F).
Average pressure in September
Tunas, MO
- Average pressure in September: 30.03"Hg
The month with the highest atmospheric pressure is January (30.17"Hg).
The months with the lowest atmospheric pressure are April and June (29.93"Hg).
Average wind speed in September
Tunas, MO
- Average wind speed in September: 6.8mph
The windiest month (with the highest average wind speed) is March (9.9mph).
The calmest month (with the lowest average wind speed) is July (6.2mph).
Average humidity in September
Tunas, 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, October and November (73%).
Average rainfall in September
Tunas, MO
- Average rainfall in September: 2.17"
The wettest month (with the highest rainfall) is May (5.04").
The driest month (with the least rainfall) is January (1.61").
Average rainfall days in September
Tunas, MO
- Average rainfall days in September: 13.2 days
The month with the highest number of rainy days is May (17.6 days).
The month with the least rainy days is December (6.9 days).
Average snowfall in September
Tunas, MO
- Average snowfall in September: 0"
The month with the highest snowfall is February (2.91").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Tunas, MO
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (6.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Tunas, 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 36min).
- Average sunshine in September: 9h and 30min
The month with the most sunshine is June (Average sunshine: 10h and 42min).
The month with the least sunshine is January (Average sunshine: 5h and 6min).
Average sunshine days in September
Tunas, MO
- Average sunshine days in September: 14.5 days
The month with the most sunshine days is December (20.5 days).
The month with the least sunshine days is May (10.8 days).
Average UV index in September
Tunas, 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
Tunas, MO
- Average cloud cover in September: 29
The month with the most cloud cover is March (Cloud cover 47).
The month with the least cloud cover is June (Cloud cover 27).
Average visibility in September
Tunas, 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).





