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
The onset of September entails a subtle temperature shift, as the average high-temperature eases from a tropical 87.4°F (30.8°C) in August to a moderately hot 80.1°F (26.7°C). An average low-temperature of 59.7°F (15.4°C) is noted during the month of September.Humidity
July through November, with an average relative humidity of 73%, are the least humid months.Rainfall
In Richland, during September, the rain falls for 10 days and regularly aggregates up to 0.79" (20mm) of precipitation. Throughout the year, there are 113.6 rainfall days, and 12.72" (323mm) of precipitation is accumulated.Snowfall
April through October are months without snowfall.Daylight
The average length of the day in September is 12h and 25min.On the first day of September in Richland, sunrise is at 6:40 am and sunset at 7:38 pm. On the last day of the month, sunrise is at 7:05 am and sunset at 6:53 pm CDT.
Sunshine
In Richland, the average sunshine in September is 9.6h.UV index
In Richland, the average daily maximum UV index in September is 5. A UV Index value of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV rays for the ordinary person.Note: A maximum high UV index of 5 in September translates into the following recommendations:
Take precautions. Light skin individuals may get burned in less than 30 minutes. Midday is when the Sun's radiation is strongest; avoid prolonged exposure during this time. To mitigate harm from sun exposure, pick sunglasses offering UVA and UVB defense.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the usual temperature for Richland in September?
What is the least humid month?
What is the average humidity in September?
How much does it rain in September?
When it does not snow?
How many hours of daylight does Richland have in September?
When are sunrise and sunset in September in Richland?
How many hours of sunshine does Richland have in September?
How high is the UV index in September?
Average temperature in September
Richland, MO
- Average high temperature in September: 80.1°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 (40.1°F).
- Average low temperature in September: 59.7°F
The month with the highest average low temperature is July (68.2°F).
The coldest month (with the lowest average low temperature) is January (25.2°F).
Average pressure in September
Richland, MO
- Average pressure in September: 30.03"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
Richland, MO
- Average wind speed in September: 6.2mph
The windiest month (with the highest average wind speed) is January (9.1mph).
The calmest month (with the lowest average wind speed) is July (5.7mph).
Average humidity in September
Richland, MO
- Average humidity in September: 73%
The month with the highest relative humidity is May (77%).
The months with the lowest relative humidity are July, August, September, October and November (73%).
Average rainfall in September
Richland, MO
- Average rainfall in September: 0.79"
The wettest month (with the highest rainfall) is May (2.01").
The driest months (with the least rainfall) are January and February (0.51").
Average rainfall days in September
Richland, MO
- Average rainfall days in September: 10 days
The month with the highest number of rainy days is May (14.2 days).
The months with the least rainy days are January and December (4.8 days).
Average snowfall in September
Richland, MO
- Average snowfall in September: 0"
The month with the highest snowfall is February (1.06").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in September
Richland, MO
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (4.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Richland, MO
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 14h and 42min).
The month with the shortest days is December (Average daylight: 9h and 36min).
- Average sunshine in September: 9h and 4min
The month with the most sunshine is June (Average sunshine: 10h and 36min).
The month with the least sunshine is January (Average sunshine: 4h and 54min).
Average sunshine days in September
Richland, MO
- Average sunshine days in September: 18 days
The month with the most sunshine days is December (23.4 days).
The month with the least sunshine days is May (14.3 days).
Average UV index in September
Richland, 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 and December (UV index 2).
Average cloud cover in September
Richland, MO
- Average cloud cover in September: 30
The month with the most cloud cover is March (Cloud cover 48).
The month with the least cloud cover is June (Cloud cover 28).
Average visibility in September
Richland, MO
- Average visibility in September: 6mi
The months with the highest visibility are January, February, March, April, June, July, August, September, October, November and December (6mi).
The month with the lowest visibility is May (5mi).
Richland, Missouri, USA
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