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
A modest decline in the average high-temperature is seen during September, decreasing from a tropical 86°F (30°C) in August to a warm 79°F (26.1°C). Deerfield records an average low of 60.3°F (15.7°C) throughout the nights in September.Humidity
In Deerfield, the average relative humidity in September is 76%.Rainfall
In Deerfield, during September, the rain falls for 12.9 days and regularly aggregates up to 2.64" (67mm) of precipitation. Throughout the year, in Deerfield, there are 143 rainfall days, and 31.14" (791mm) of precipitation is accumulated.Snowfall
June through September are months without snowfall in Deerfield.Daylight
In Deerfield, the average length of the day in September is 12h and 25min.On the first day of the month, sunrise is at 6:48 am and sunset at 7:46 pm. On the last day of September, sunrise is at 7:13 am and sunset at 7:02 pm CDT.
Sunshine
In Deerfield, Missouri, the average sunshine in September is 9.4h.UV index
In Deerfield, the average daily maximum UV index in September is 5. A UV Index estimate of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV radiation for average individuals.Note: A maximum high daily UV index of 5 during September translates into the following directions:
Adopt protective measures - Requirement to safeguard skin and eyes from harm exists. Avoiding direct sunlight during midday hours helps reduce the risk from intense UV radiation. Equip yourself with UVA and UVB-filtering sunglasses on clear, sunny days.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the average September temperature in Deerfield?
What is the average humidity in September in Deerfield?
How much does it rain in Deerfield in September?
When it does not snow in Deerfield?
Does it snow in Deerfield in September?
How many hours of daylight does Deerfield have in September?
What time are sunrise and sunset in September in Deerfield?
How many hours of sunshine does Deerfield have in September?
How high is the UV index in September in Deerfield?
Average temperature in September
Deerfield, MO
- Average high temperature in September: 79°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 (40.6°F).
- Average low temperature in September: 60.3°F
The month with the highest average low temperature is July (69.4°F).
The coldest month (with the lowest average low temperature) is January (25.9°F).
Average pressure in September
Deerfield, MO
- Average pressure in September: 30.02"Hg
The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in September
Deerfield, MO
- Average wind speed in September: 7.3mph
The windiest month (with the highest average wind speed) is March (10.6mph).
The calmest months (with the lowest average wind speed) are July and August (6.8mph).
Average humidity in September
Deerfield, MO
- Average humidity in September: 76%
The month with the highest relative humidity is May (80%).
The month with the lowest relative humidity is October (71%).
Average rainfall in September
Deerfield, MO
- Average rainfall in September: 2.64"
The wettest month (with the highest rainfall) is May (5.16").
The driest month (with the least rainfall) is January (1.26").
Average rainfall days in September
Deerfield, MO
- Average rainfall days in September: 12.9 days
The month with the highest number of rainy days is May (17.5 days).
The month with the least rainy days is December (6.4 days).
Average snowfall in September
Deerfield, MO
- Average snowfall in September: 0"
The month with the highest snowfall is February (2.64").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Deerfield, MO
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (5.4 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Deerfield, 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 2min
The months with the most sunshine are June and July (Average sunshine: 10h and 36min).
The month with the least sunshine is January (Average sunshine: 5h and 24min).
Average sunshine days in September
Deerfield, MO
- Average sunshine days in September: 15 days
The month with the most sunshine days is December (21.8 days).
The month with the least sunshine days is May (11.3 days).
Average UV index in September
Deerfield, MO
- Average UV index in September: 5
The month with the highest UV index is June (UV index 7).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in September
Deerfield, MO
- Average cloud cover in September: 28
The month with the most cloud cover is March (Cloud cover 45).
The month with the least cloud cover is July (Cloud cover 25).
Average visibility in September
Deerfield, 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).
Deerfield, Missouri, USA
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