Contents
- Weather in September
- Frequently asked questions
- Average temperature in September
- Average pressure in September
- Average wind speed in September
- Average humidity in September
- Average rainfall in September
- Average rainfall days in September
- Average snowfall in September
- Average snowfall days in September
- Average daylight in September
- Average sunshine in September
- Average sunshine days in September
- Average UV index in September
- Average cloud cover in September
- Average visibility in September
Weather in September
Temperature
In September, the average high-temperature marginally drops from a very hot 95.2°F (35.1°C) in August to a hot 88.7°F (31.5°C). Throughout September, Winona witnesses a consistent average low-temperature of 67.8°F (19.9°C).Heat index
For most parts of September, the heat index is computed to be a very hot 102.2°F (39°C). Take greater precautions, heat exhaustion and heat cramps may be expected. Heatstroke could result from lengthy activity.Regarding the heat index, one should be aware it's determined by shaded settings and mild winds. If exposed to direct sunlight, the heat index could climb by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'felt air temperature', is achieved by amalgamating air temperature with the relative humidity readings. The impression of weather on a person can be swayed by additional aspects, including metabolic variations, pregnancy, and activity levels. Should you be directly under the sun, anticipate a possible increase in the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular importance for children. Young ones are generally at greater risk than adults due to their limited sweating ability. In addition, their large skin surface relative to their small bodies and higher heat production from their activities add to their vulnerability.
The human body cools itself through perspiration, as excessive warmth is removed from the body through sweat evaporation. With a lot of moisture in the air, the evaporation process is not as effective, and the body does not cool down as efficiently, creating a perception of overheating. Overheating can ensue when the body accumulates more heat than it can release, and dehydration severity may vary.
Humidity
In Winona, the average relative humidity in September is 69%.Rainfall
In Winona, in September, it is raining for 13.6 days, with typically 2.2" (56mm) of accumulated precipitation. In Winona, Texas, during the entire year, the rain falls for 149.8 days and collects up to 35.55" (903mm) of precipitation.Snowfall
April through December are months without snowfall in Winona.Daylight
In Winona, the average length of the day in September is 12h and 22min.On the first day of the month, sunrise is at 6:56 am and sunset at 7:44 pm. On the last day of September, in Winona, sunrise is at 7:14 am and sunset at 7:06 pm CDT.
Sunshine
In Winona, Texas, the average sunshine in September is 8.9h.UV index
In September, the average daily maximum UV index in Winona is 6. A UV Index estimate of 6 to 7 represents a high health hazard from exposure to the Sun's UV radiation for ordinary individuals.Note: In September, a daily maximum UV index of 6 leads to the following instructions:
Ward off overexposure. Defence against solar harm is crucial. Limit your exposure to the sun's UV radiation, which is strongest between 10 a.m. and 4 p.m., and note that parasols or canopies may not provide full sun protection. Arm yourself against UV rays' harm with protective apparel and UV-filtering shades.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How hot is September in Winona?
What is the average humidity in September in Winona?
How many days does it rain in September in Winona?
When it does not snow in Winona?
What is the average length of the day in September in Winona?
When are sunrise and sunset in September in Winona?
How long on average sun shines in September in Winona?
How high is the UV index in September in Winona?
Average temperature in September
Winona, TX
- Average high temperature in September: 88.7°F
The warmest month (with the highest average high temperature) is August (95.2°F).
The month with the lowest average high temperature is January (54.1°F).
- Average low temperature in September: 67.8°F
The months with the highest average low temperature are July and August (73.4°F).
The coldest month (with the lowest average low temperature) is January (38.5°F).
Average pressure in September
Winona, TX
- Average pressure in September: 29.98"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed in September
Winona, TX
- Average wind speed in September: 5.4mph
The windiest month (with the highest average wind speed) is April (7.5mph).
The calmest month (with the lowest average wind speed) is September (5.4mph).
Average humidity in September
Winona, TX
- Average humidity in September: 69%
The month with the highest relative humidity is February (80%).
The month with the lowest relative humidity is August (65%).
Average rainfall in September
Winona, TX
- Average rainfall in September: 2.2"
The wettest month (with the highest rainfall) is April (4.13").
The driest month (with the least rainfall) is August (2.13").
Average rainfall days in September
Winona, TX
- Average rainfall days in September: 13.6 days
The month with the highest number of rainy days is May (14.3 days).
The month with the least rainy days is January (10.3 days).
Average snowfall in September
Winona, TX
- Average snowfall in September: 0"
The month with the highest snowfall is February (0.67").
The months with the least snowfall are April, May, June, July, August, September, October, November and December (0").
Average snowfall days in September
Winona, TX
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (1.3 days).
The months with the least snowfall days are April, May, June, July, August, September, October and November (0 days).
Average daylight in September /
Average sunshine in September
Winona, TX
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 14h and 18min).
The month with the shortest days is December (Average daylight: 10h and 6min).
- Average sunshine in September: 8h and 5min
The month with the most sunshine is August (Average sunshine: 10h and 36min).
The month with the least sunshine is December (Average sunshine: 5h and 0min).
Average sunshine days in September
Winona, TX
- Average sunshine days in September: 15 days
The months with the most sunshine days are January and October (18.7 days).
The month with the least sunshine days is February (12.5 days).
Average UV index in September
Winona, TX
- Average UV index in September: 6
The months with the highest UV index are May, June, July and August (UV index 7).
The months with the lowest UV index are January, November and December (UV index 3).
Average cloud cover in September
Winona, TX
- Average cloud cover in September: 31
The month with the most cloud cover is February (Cloud cover 50).
The month with the least cloud cover is August (Cloud cover 27).
Average visibility in September
Winona, TX
- 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).
Winona, Texas, USA
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