September weather forecastOswald, MO
September
Weather in September
The first month of the autumn, September, is still a warm month in Oswald, Missouri, with an average temperature fluctuating between 57.7°F (14.3°C) and 77.7°F (25.4°C).Temperature
In September, the average high-temperature registers at a still warm 77.7°F (25.4°C), nearly identical to August's 82.9°F (28.3°C). Nighttime temperature lowers to an average of 57.7°F (14.3°C) in September.Humidity
In September, the average relative humidity is 73%.Rainfall
In Oswald, in September, it is raining for 11.7 days, with typically 1.93" (49mm) of accumulated precipitation. In Oswald, during the entire year, the rain falls for 120.8 days and collects up to 24.09" (612mm) of precipitation.Snowfall
In Oswald, snow does not fall in May through September.Daylight
In Oswald, the average length of the day in September is 12h and 26min.On the first day of the month, sunrise is at 6:49 am and sunset at 7:52 pm. On the last day of September, sunrise is at 7:17 am and sunset at 7:04 pm CDT.
Sunshine
The average sunshine in September is 9.1h.UV index
In Oswald, the average daily maximum UV index in September is 5. A UV Index reading of 3 to 5 represents a medium health hazard from exposure to the Sun's UV rays for the average person.Note: In September, a daily maximum UV index of 5 leads to the following instructions:
Undertake precautions - Guarding against sun damage is counselled. Being in direct Sun during midday can be harmful due to intense solar radiation; take precautions. Fend off the sun's harsh rays with appropriate clothing, a wide-brim hat, and UV-protective sunglasses.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Oswald, MO
- Average high temperature in September: 77.7°F
The warmest month (with the highest average high temperature) is July (84.9°F).
The month with the lowest average high temperature is January (32.5°F).
- Average low temperature in September: 57.7°F
The month with the highest average low temperature is July (67.1°F).
The coldest month (with the lowest average low temperature) is January (18.5°F).
Average pressure in September
Oswald, MO
- Average pressure in September: 30"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.87"Hg).
Average wind speed in September
Oswald, MO
- Average wind speed in September: 7.8mph
The windiest months (with the highest average wind speed) are March and April (10.1mph).
The calmest month (with the lowest average wind speed) is July (6.6mph).
Average humidity in September
Oswald, MO
- Average humidity in September: 73%
The month with the highest relative humidity is July (79%).
The month with the lowest relative humidity is October (67%).
Average rainfall in September
Oswald, MO
- Average rainfall in September: 1.93"
The wettest month (with the highest rainfall) is June (4.21").
The driest month (with the least rainfall) is February (0.67").
Average rainfall days in September
Oswald, MO
- Average rainfall days in September: 11.7 days
The month with the highest number of rainy days is May (17.3 days).
The month with the least rainy days is February (3.8 days).
Average snowfall in September
Oswald, MO
- Average snowfall in September: 0"
The month with the highest snowfall is January (3.03").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in September
Oswald, MO
- Average snowfall days in September: 0 days
The months with the highest number of snowfall days are January and February (6.7 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
Oswald, MO
- Average daylight in September: 12h and 24min
The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 24min).
- Average sunshine in September: 9h and 6min
The month with the most sunshine is July (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 4h and 48min).
Average sunshine days in September
Oswald, MO
- Average sunshine days in September: 16.9 days
The months with the most sunshine days are November and December (21.5 days).
The month with the least sunshine days is May (11.4 days).
Average UV index in September
Oswald, 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
Oswald, MO
- Average cloud cover in September: 29
The month with the most cloud cover is January (Cloud cover 47).
The month with the least cloud cover is July (Cloud cover 27).
Average visibility in September
Oswald, 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).
