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 signals a slight drop in average high-temperature, sliding from August's 85.3°F (29.6°C) to a still moderately hot 79.2°F (26.2°C). Silex's average low-temperature during September nights is observed to be a refreshing 59°F (15°C).Humidity
In Silex, Missouri, the average relative humidity in September is 74%.Rainfall
In Silex, in September, during 11.4 rainfall days, 2.17" (55mm) of precipitation is typically accumulated. Throughout the year, there are 142.7 rainfall days, and 29.25" (743mm) of precipitation is accumulated.Snowfall
In Silex, snow does not fall in April through October.Daylight
In Silex, the average length of the day in September is 12h and 26min.On the first day of the month, sunrise is at 6:33 am and sunset at 7:34 pm. On the last day of September, sunrise is at 6:59 am and sunset at 6:47 pm CDT.
Sunshine
In Silex, the average sunshine in September is 9.3h.UV index
The average daily maximum UV index in September is 5. A UV Index of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV radiation for the ordinary person.Note: The maximum UV index of 5 during September translates into these guidelines:
Exercise prevention - Protecting skin and eyes from harm is required. Direct exposure to the Sun during its peak hours around mid-day should be minimized for safety. To cut down UV radiation exposure by about half, sport a wide-brim hat.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the average September temperature?
What is the average humidity in September?
How many days does it rain in September?
When it does not snow?
How many hours of daylight does Silex have in September?
What time are sunrise and sunset in September in Silex?
How many hours of sunshine does Silex have in September?
What is the UV index intensity in September?
Average temperature in September
Silex, MO
- Average high temperature in September: 79.2°F
The warmest month (with the highest average high temperature) is July (86.5°F).
The month with the lowest average high temperature is January (36.3°F).
- Average low temperature in September: 59°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 (23.2°F).
Average pressure in September
Silex, 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
Silex, MO
- Average wind speed in September: 6.2mph
The windiest month (with the highest average wind speed) is January (9.1mph).
The calmest months (with the lowest average wind speed) are July and August (5.7mph).
Average humidity in September
Silex, MO
- Average humidity in September: 74%
The month with the highest relative humidity is May (80%).
The month with the lowest relative humidity is October (72%).
Average rainfall in September
Silex, MO
- Average rainfall in September: 2.17"
The wettest month (with the highest rainfall) is May (3.46").
The driest month (with the least rainfall) is January (1.38").
Average rainfall days in September
Silex, MO
- Average rainfall days in September: 11.4 days
The month with the highest number of rainy days is May (16.8 days).
The month with the least rainy days is January (6.3 days).
Average snowfall in September
Silex, MO
- Average snowfall in September: 0"
The months with the highest snowfall are January and February (2.68").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in September
Silex, MO
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (6.2 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
Silex, 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 2min
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 30min).
Average sunshine days in September
Silex, MO
- Average sunshine days in September: 17.1 days
The month with the most sunshine days is December (19.6 days).
The month with the least sunshine days is May (11.9 days).
Average UV index in September
Silex, 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
Silex, MO
- Average cloud cover in September: 31
The month with the most cloud cover is January (Cloud cover 51).
The months with the least cloud cover are June and August (Cloud cover 30).
Average visibility in September
Silex, MO
- Average visibility in September: 6mi
The months with the highest visibility are January, February, March, April, May, June, August, September, October, November and December (6mi).
The month with the lowest visibility is July (5mi).
Silex, Missouri, USA
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