September weather forecastWellsville, MO
September
Weather in September
The first month of the autumn, September, is also a moderately hot month in Wellsville, Missouri, with an average temperature fluctuating between 79°F (26.1°C) and 58.8°F (14.9°C).Temperature
The beginning of September brings a slight decrease in the average high-temperature, transitioning from 85.3°F (29.6°C) in August to a still warm 79°F (26.1°C). Wellsville sees an average low-temperature of 58.8°F (14.9°C) during September.Humidity
In Wellsville, the average relative humidity in September is 75%.Rainfall
In Wellsville, in September, during 11.2 rainfall days, 2.05" (52mm) of precipitation is typically accumulated. Throughout the year, in Wellsville, there are 139.8 rainfall days, and 28.7" (729mm) of precipitation is accumulated.Snowfall
In Wellsville, snow does not fall in May through October.Daylight
In Wellsville, the average length of the day in September is 12h and 26min.On the first day of the month, sunrise is at 6:35 am and sunset at 7:36 pm. On the last day of September, in Wellsville, sunrise is at 7:02 am and sunset at 6:49 pm CDT.
Sunshine
In Wellsville, the average sunshine in September is 9.1h.UV index
The average daily maximum UV index in September is 5. A UV Index reading of 3 to 5 represents a moderate health risk from unprotected exposure to Sun's UV rays for the average person.Note: An average UV index of 5 in September transforms into this advice:
Preventative actions are necessary - Recommendations to ward off sunburn are given. Avoid the Sun's strongest UV rays by seeking shade and limiting exposure during midday. On days when the sun blazes, arm yourself with sunglasses that block UVA and UVB radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Wellsville, MO
- Average high temperature in September: 79°F
The warmest month (with the highest average high temperature) is July (86.7°F).
The month with the lowest average high temperature is January (36.1°F).
- Average low temperature in September: 58.8°F
The month with the highest average low temperature is July (67.6°F).
The coldest month (with the lowest average low temperature) is January (22.5°F).
Average pressure in September
Wellsville, MO
- Average pressure in September: 30.02"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in September
Wellsville, MO
- Average wind speed in September: 6.6mph
The windiest months (with the highest average wind speed) are January and February (9.3mph).
The calmest month (with the lowest average wind speed) is July (6mph).
Average humidity in September
Wellsville, MO
- Average humidity in September: 75%
The month with the highest relative humidity is May (78%).
The month with the lowest relative humidity is October (72%).
Average rainfall in September
Wellsville, MO
- Average rainfall in September: 2.05"
The wettest month (with the highest rainfall) is May (3.39").
The driest months (with the least rainfall) are January and February (1.46").
Average rainfall days in September
Wellsville, MO
- Average rainfall days in September: 11.2 days
The month with the highest number of rainy days is May (16.3 days).
The month with the least rainy days is December (6.5 days).
Average snowfall in September
Wellsville, MO
- Average snowfall in September: 0"
The month with the highest snowfall is January (3.11").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in September
Wellsville, MO
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (5.9 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Wellsville, 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 30min).
- Average sunshine in September: 9h and 6min
The month with the most sunshine is June (Average sunshine: 10h and 12min).
The month with the least sunshine is January (Average sunshine: 4h and 24min).
Average sunshine days in September
Wellsville, MO
- Average sunshine days in September: 17.4 days
The month with the most sunshine days is December (20 days).
The month with the least sunshine days is May (12.2 days).
Average UV index in September
Wellsville, 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
Wellsville, MO
- Average cloud cover in September: 32
The month with the most cloud cover is January (Cloud cover 52).
The month with the least cloud cover is August (Cloud cover 30).
Average visibility in September
Wellsville, 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).
