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
September's arrival signals a moderate reduction in the average high-temperature, easing from 85.3°F (29.6°C) in August to a still moderately hot 79°F (26.1°C). Middletown reports an average nighttime low-temperature of 58.8°F (14.9°C) in September.Humidity
In September, the average relative humidity is 75%.Rainfall
In Middletown, during September, the rain falls for 11.2 days and regularly aggregates up to 2.05" (52mm) of precipitation. Throughout the year, there are 139.8 rainfall days, and 28.7" (729mm) of precipitation is accumulated.Snowfall
May through October are months without snowfall.Daylight
In Middletown, the average length of the day in September is 12h and 26min.On the first day of September, sunrise is at 6:35 am and sunset at 7:35 pm. On the last day of the month, sunrise is at 7:01 am and sunset at 6:49 pm CDT.
Sunshine
In Middletown, the average sunshine in September is 9.1h.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 exposure to the Sun's UV radiation for the ordinary person.Note: In September, a regular UV index of 5 translates into these guidelines:
Preventative actions are necessary - Recommendations to ward off sunburn are given. The solar radiation around mid-day is intense; avoid the Sun and stay safe. Shield yourself from the harmful effects of UV radiation with sun-protective attire, a hat, and quality sunglasses.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the usual temperature for Middletown in September?
What is the average humidity in September?
How many days does it rain in September?
When it does not snow?
What is the average length of the day in September?
What time are sunrise and sunset in September?
How many hours of sunshine does Middletown have in September?
What is the UV index intensity in September?
Average temperature in September
Middletown, MO
- Average high temperature in September: 79°F
The warmest month (with the highest average high temperature) is July (86.7°F).
The month with the lowest average high temperature is January (36.1°F).
- Average low temperature in September: 58.8°F
The month with the highest average low temperature is July (67.6°F).
The coldest month (with the lowest average low temperature) is January (22.5°F).
Average pressure in September
Middletown, 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 (29.91"Hg).
Average wind speed in September
Middletown, MO
- Average wind speed in September: 6.6mph
The windiest months (with the highest average wind speed) are January and February (9.3mph).
The calmest month (with the lowest average wind speed) is July (6mph).
Average humidity in September
Middletown, MO
- Average humidity in September: 75%
The month with the highest relative humidity is May (78%).
The month with the lowest relative humidity is October (72%).
Average rainfall in September
Middletown, MO
- Average rainfall in September: 2.05"
The wettest month (with the highest rainfall) is May (3.39").
The driest months (with the least rainfall) are January and February (1.46").
Average rainfall days in September
Middletown, MO
- Average rainfall days in September: 11.2 days
The month with the highest number of rainy days is May (16.3 days).
The month with the least rainy days is December (6.5 days).
Average snowfall in September
Middletown, MO
- Average snowfall in September: 0"
The month with the highest snowfall is January (3.11").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in September
Middletown, MO
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (5.9 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
Middletown, MO
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 30min).
- Average sunshine in September: 9h and 1min
The month with the most sunshine is June (Average sunshine: 10h and 12min).
The month with the least sunshine is January (Average sunshine: 4h and 24min).
Average sunshine days in September
Middletown, MO
- Average sunshine days in September: 17.4 days
The month with the most sunshine days is December (20 days).
The month with the least sunshine days is May (12.2 days).
Average UV index in September
Middletown, 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
Middletown, MO
- Average cloud cover in September: 32
The month with the most cloud cover is January (Cloud cover 52).
The month with the least cloud cover is August (Cloud cover 30).
Average visibility in September
Middletown, 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).
Middletown, Missouri, USA
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