September weather forecastDoniphan, MO
September
Weather in September
September brings a much-welcomed cooling effect to Doniphan, Missouri, as the impassioned heat of summer begins to decline, evidenced by temperatures between 62.2°F (16.8°C) and 82°F (27.8°C). This cooling trend signals the initial transition from summer towards autumn. The surge of coolness coupled with a substantial dip in rainfall to 1.89" (48mm), underscores September's weather as a transition into the fall season.Temperature
Doniphan's September weather shows a modest shift in high-temperatures, falling from August's tropical 87.8°F (31°C) to a warm 82°F (27.8°C). In the month of September, Doniphan witnesses a consistent average low-temperature of 62.2°F (16.8°C).Heat index
For September, the heat index is evaluated at a hot 87.8°F (31°C). One might feel worn out with persistent exposure and activity, resulting in heat cramps.One should consider that heat index numbers are for shaded settings and light wind. Direct exposure to sunshine could lead to a heat index increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'feels like', is found by incorporating humidity levels into the air temperature measurement. 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. Always consider that direct sunlight exposure might heighten the heat's effects, pushing the heat index up by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly meaningful for babies and toddlers. Children often miss understanding the importance of rest and rehydration. Thirst usually appears late during dehydration - therefore, maintaining hydration, particularly during long physical activities, is essential.
Humidity
In September, the average relative humidity in Doniphan, Missouri, is 73%.Rainfall
The month with the least rainfall in Doniphan is September, when the rain falls for 12.5 days and typically collects 1.89" (48mm) of precipitation.Snowfall
In Doniphan, snow does not fall in April through September.Daylight
In September, the average length of the day in Doniphan is 12h and 24min.On the first day of the month, sunrise is at 6:35 am and sunset at 7:31 pm. On the last day of September, in Doniphan, sunrise is at 6:58 am and sunset at 6:47 pm CDT.
Sunshine
The average sunshine in September in Doniphan is 9.8h.UV index
In September, the average daily maximum UV index is 5. A UV Index estimate of 3 to 5 represents a medium health hazard from unprotected exposure to Sun's UV rays for the ordinary person.Note: A maximum high daily UV index of 5 during September translates into the following directions:
Adopt protective measures - It is advised to guard against sun damage. To guard against the harmful effects of the Sun, minimize exposure during midday. Consider a wide-brim hat essential for effective sun defense covering your face, neck, and eyes.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Doniphan, MO
- Average high temperature in September: 82°F
The warmest month (with the highest average high temperature) is July (89.1°F).
The month with the lowest average high temperature is January (43.3°F).
- Average low temperature in September: 62.2°F
The month with the highest average low temperature is July (70°F).
The coldest month (with the lowest average low temperature) is January (29.5°F).
Average pressure in September
Doniphan, MO
- Average pressure in September: 30.01"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in September
Doniphan, MO
- Average wind speed in September: 5.8mph
The windiest month (with the highest average wind speed) is February (8.8mph).
The calmest months (with the lowest average wind speed) are July and August (5.5mph).
Average humidity in September
Doniphan, MO
- Average humidity in September: 73%
The months with the highest relative humidity are March and May (79%).
The month with the lowest relative humidity is October (70%).
Average rainfall in September
Doniphan, MO
- Average rainfall in September: 1.89"
The wettest month (with the highest rainfall) is May (4.84").
The driest month (with the least rainfall) is September (1.89").
Average rainfall days in September
Doniphan, MO
- Average rainfall days in September: 12.5 days
The month with the highest number of rainy days is July (18.3 days).
The month with the least rainy days is January (10 days).
Average snowfall in September
Doniphan, MO
- Average snowfall in September: 0"
The month with the highest snowfall is February (1.38").
The months with the least snowfall are April, May, June, July, August and September (0").
Average snowfall days in September
Doniphan, MO
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (3.2 days).
The months with the least snowfall days are April, May, June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Doniphan, 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 48min
The month with the most sunshine is June (Average sunshine: 10h and 42min).
The month with the least sunshine is February (Average sunshine: 5h and 0min).
Average sunshine days in September
Doniphan, MO
- Average sunshine days in September: 14.8 days
The month with the most sunshine days is December (18.5 days).
The month with the least sunshine days is July (9.9 days).
Average UV index in September
Doniphan, MO
- Average UV index in September: 5
The month with the highest UV index is July (UV index 7).
The months with the lowest UV index are January and December (UV index 2).
Average cloud cover in September
Doniphan, MO
- Average cloud cover in September: 28
The month with the most cloud cover is March (Cloud cover 46).
The month with the least cloud cover is June (Cloud cover 25).
Average visibility in September
Doniphan, 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).
