September weather forecastEast Prairie, MO
September
Weather in September
September, the first month of the autumn in East Prairie, is still a warm month, with an average temperature fluctuating between 81.7°F (27.6°C) and 62.2°F (16.8°C).Temperature
September experiences an average high-temperature of a warm 81.7°F (27.6°C), barely different from August's 86.2°F (30.1°C). Throughout the month of September, East Prairie witnesses an average low-temperature of 62.2°F (16.8°C).Heat index
The heat index in September is calculated to be a hot 86°F (30°C). Fatigue might occur with continuous exposure and activity, potentially causing heat cramps.Be advised, the heat index considers values for conditions in shade and with a light breeze. Direct sunlight exposure may cause a 15 Fahrenheit (8 Celsius) degrees rise in the heat index.
Note: The heat index, also known as 'felt air temperature' or 'feels like', is a numerical representation of warmth when taking temperature and moisture levels into account. One's perception of temperature can vary depending on physical activity and individual heat sensitivity, influenced by factors like wind, attire, and metabolic variations. Direct sun rays have a notable impact on perceived temperature, which can raise the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are primarily vital for children. Juveniles often do not understand the need to recuperate and rehydrate. Thirst is a delayed symptom of dehydration - hence, it is vital to maintain hydration, particularly during ongoing physical activities.
Humidity
The average relative humidity in September is 72%.Rainfall
The month with the least rainfall in East Prairie is September, when the rain falls for 11.5 days and typically collects 1.42" (36mm) of precipitation.Snowfall
April through October are months without snowfall.Daylight
In September, the average length of the day is 12h and 24min.On the first day of the month, sunrise is at 6:29 am and sunset at 7:25 pm. On the last day of September, sunrise is at 6:52 am and sunset at 6:41 pm CDT.
Sunshine
The average sunshine in September is 9.7h.UV index
The average daily maximum UV index in September is 5. A UV Index value of 3 to 5 symbolizes a medium vulnerability from unprotected exposure to Sun's UV rays for the average person.Note: The UV index of 5 during September translates into the following guidance:
Heed the precautions - Suggestions to avoid sunburn are made. The Sun's UV radiation is especially harmful around midday, so reduce exposure and stay safe. 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
East Prairie, MO
- Average high temperature in September: 81.7°F
The warmest month (with the highest average high temperature) is July (87.6°F).
The month with the lowest average high temperature is January (42.3°F).
- Average low temperature in September: 62.2°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 (29.5°F).
Average pressure in September
East Prairie, 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 (29.94"Hg).
Average wind speed in September
East Prairie, MO
- Average wind speed in September: 6.4mph
The windiest month (with the highest average wind speed) is February (9.4mph).
The calmest month (with the lowest average wind speed) is August (5.7mph).
Average humidity in September
East Prairie, MO
- Average humidity in September: 72%
The months with the highest relative humidity are March and May (78%).
The month with the lowest relative humidity is October (68%).
Average rainfall in September
East Prairie, MO
- Average rainfall in September: 1.42"
The wettest month (with the highest rainfall) is March (4.21").
The driest month (with the least rainfall) is September (1.42").
Average rainfall days in September
East Prairie, MO
- Average rainfall days in September: 11.5 days
The month with the highest number of rainy days is May (16.3 days).
The month with the least rainy days is November (10.1 days).
Average snowfall in September
East Prairie, MO
- Average snowfall in September: 0"
The month with the highest snowfall is February (1.54").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in September
East Prairie, MO
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (3.7 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in September /
Average sunshine in September
East Prairie, MO
- Average daylight in September: 12h and 24min
The month with the longest days is June (Average daylight: 14h and 36min).
The month with the shortest days is December (Average daylight: 9h and 42min).
- Average sunshine in September: 9h and 42min
The month with the most sunshine is June (Average sunshine: 10h and 48min).
The month with the least sunshine is February (Average sunshine: 4h and 48min).
Average sunshine days in September
East Prairie, MO
- Average sunshine days in September: 17.2 days
The month with the most sunshine days is October (18.8 days).
The month with the least sunshine days is March (12.3 days).
Average UV index in September
East Prairie, 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 and December (UV index 2).
Average cloud cover in September
East Prairie, MO
- Average cloud cover in September: 26
The month with the most cloud cover is February (Cloud cover 48).
The month with the least cloud cover is June (Cloud cover 25).
Average visibility in September
East Prairie, 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).
