September weather forecastWinona, KS
September
Weather in September
September, the first month of the autumn in Winona, is still a warm month, with an average temperature fluctuating between 60.4°F (15.8°C) and 81.9°F (27.7°C).Temperature
September witnesses a gentle descent in average high-temperature, descending from August's tropical 89.2°F (31.8°C) to a moderately hot 81.9°F (27.7°C). Throughout September, the temperature falls to an average low of 60.4°F (15.8°C).Heat index
The average heat index in September is estimated at 82.4°F (28°C). Constant exposure and activity lead to possible fatigue. Prolonged exercise may result in heat cramps.Heat index data is primarily for areas with shade and subjected to light winds. Exposure to the sun directly might heighten the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', shows a temperature sensation when both heat and moisture conditions are combined. The impact of weather is personal, differing among a variety of people based on differences in body mass, height, and the level of physical exertion. Direct sun rays can make one feel hotter, potentially raising the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for children. Young ones often ignore the need to take a break and drink fluids. Thirst is a late-stage symptom of dehydration - hence, maintaining hydration, particularly during extended physical activities, is crucial.
Humidity
In Winona, the average relative humidity in September is 53%.Rainfall
In Winona, in September, during 9.5 rainfall days, 1.1" (28mm) of precipitation is typically accumulated. Throughout the year, there are 105.4 rainfall days, and 13.7" (348mm) of precipitation is accumulated.Snowfall
May through September are months without snowfall.Daylight
In Winona, the average length of the day in September is 12h and 26min.On the first day of September, sunrise is at 7:14 am and sunset at 8:14 pm. On the last day of the month, sunrise is at 7:40 am and sunset at 7:28 pm CDT.
Sunshine
In September, the average sunshine is 9.2h.UV index
The average daily maximum UV index in September is 5. A UV Index estimate of 3 to 5 represents a moderate threat to health from unsafe exposure to UV radiation for average individuals.Note: In September, the maximum UV index of 5 suggests these recommendations:
Act with care - The suggestion to avoid sunburn is emphasized. Avoiding direct sunlight during midday hours helps reduce the risk from intense UV radiation. Clothes that are both tight-knit and comfortably loose are prime choices for sun protection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Winona, KS
- Average high temperature in September: 81.9°F
The warmest month (with the highest average high temperature) is July (92.5°F).
The month with the lowest average high temperature is December (41.9°F).
- Average low temperature in September: 60.4°F
The month with the highest average low temperature is July (70.3°F).
The coldest month (with the lowest average low temperature) is January (25.2°F).
Average pressure in September
Winona, KS
- Average pressure in September: 29.94"Hg
The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.81"Hg).
Average wind speed in September
Winona, KS
- Average wind speed in September: 11.2mph
The windiest month (with the highest average wind speed) is April (12.9mph).
The calmest month (with the lowest average wind speed) is August (10.1mph).
Average humidity in September
Winona, KS
- Average humidity in September: 53%
The months with the highest relative humidity are January and December (63%).
The month with the lowest relative humidity is July (50%).
Average rainfall in September
Winona, KS
- Average rainfall in September: 1.1"
The wettest month (with the highest rainfall) is May (2.36").
The driest months (with the least rainfall) are January and November (0.39").
Average rainfall days in September
Winona, KS
- Average rainfall days in September: 9.5 days
The month with the highest number of rainy days is May (13.4 days).
The month with the least rainy days is November (4 days).
Average snowfall in September
Winona, KS
- Average snowfall in September: 0"
The month with the highest snowfall is December (1.06").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in September
Winona, KS
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (3.9 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
Winona, KS
- 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 12min
The months with the most sunshine are June and July (Average sunshine: 11h and 36min).
The month with the least sunshine is December (Average sunshine: 6h and 30min).
Average sunshine days in September
Winona, KS
- Average sunshine days in September: 18 days
The month with the most sunshine days is December (23.7 days).
The months with the least sunshine days are June and July (14.7 days).
Average UV index in September
Winona, KS
- Average UV index in September: 5
The months with the highest UV index are June and July (UV index 7).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in September
Winona, KS
- Average cloud cover in September: 19
The months with the most cloud cover are February and April (Cloud cover 31).
The month with the least cloud cover is June (Cloud cover 17).
Average visibility in September
Winona, KS
- 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).
