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
With the onset of September, Chester's climate undergoes a slight change as the average high-temperature moves from a moderately hot 81.9°F (27.7°C) in August to a still warm 74.8°F (23.8°C). An average low-temperature of 54.9°F (12.7°C) is recorded in the month of September in Chester.Humidity
In September, the average relative humidity is 79%.Rainfall
In Chester, in September, it is raining for 14.2 days, with typically 1.77" (45mm) of accumulated precipitation. In Chester, during the entire year, the rain falls for 161.5 days and collects up to 22.72" (577mm) of precipitation.Snowfall
In Chester, snow does not fall in June through September.Daylight
In September, the average length of the day is 12h and 27min.On the first day of the month, sunrise is at 6:50 am and sunset at 7:53 pm. On the last day of September, in Chester, sunrise is at 7:18 am and sunset at 7:05 pm EDT.
Sunshine
The average sunshine in September in Chester is 8.2h.UV index
The average daily maximum UV index in September in Chester is 4. A UV Index of 3 to 5 symbolizes a medium health hazard from unprotected exposure to Sun's UV rays for average individuals.Note: In September, the maximum UV index of 4 suggests this advice:
Take heed. Individuals of lighter complexion can be burned in less than half an hour. Minimize direct exposure to the Sun during midday when its radiation is at its peak. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the usual temperature for Chester in September?
What is the average humidity in September in Chester?
How many days does it rain in September in Chester?
When it does not snow in Chester?
Does it snow in Chester in September?
How many hours of daylight does Chester have in September?
When is the sunrise / sunset in September in Chester?
How long on average sun shines in September in Chester?
What is the UV index reading in September in Chester?
Average temperature in September
Chester, WV
- Average high temperature in September: 74.8°F
The warmest month (with the highest average high temperature) is July (83.1°F).
The month with the lowest average high temperature is January (32.5°F).
- Average low temperature in September: 54.9°F
The month with the highest average low temperature is July (61°F).
The coldest month (with the lowest average low temperature) is January (19.8°F).
Average pressure in September
Chester, WV
- Average pressure in September: 30.05"Hg
The month with the highest atmospheric pressure is November (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).
Average wind speed in September
Chester, WV
- Average wind speed in September: 5.2mph
The windiest month (with the highest average wind speed) is January (8.1mph).
The calmest months (with the lowest average wind speed) are July and August (4.8mph).
Average humidity in September
Chester, WV
- Average humidity in September: 79%
The month with the highest relative humidity is February (86%).
The months with the lowest relative humidity are April, July and August (77%).
Average rainfall in September
Chester, WV
- Average rainfall in September: 1.77"
The wettest months (with the highest rainfall) are April and May (2.24").
The driest month (with the least rainfall) is November (1.54").
Average rainfall days in September
Chester, WV
- Average rainfall days in September: 14.2 days
The month with the highest number of rainy days is May (18 days).
The month with the least rainy days is January (8.8 days).
Average snowfall in September
Chester, WV
- Average snowfall in September: 0"
The month with the highest snowfall is January (3.39").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Chester, WV
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (15.4 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Chester, WV
- Average daylight in September: 12h and 2min
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 18min).
- Average sunshine in September: 8h and 1min
The month with the most sunshine is August (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 2h and 54min).
Average sunshine days in September
Chester, WV
- Average sunshine days in September: 13.7 days
The month with the most sunshine days is November (16.5 days).
The month with the least sunshine days is February (9.5 days).
Average UV index in September
Chester, WV
- Average UV index in September: 4
The months with the highest UV index are June and July (UV index 6).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in September
Chester, WV
- Average cloud cover in September: 40
The month with the most cloud cover is January (Cloud cover 70).
The month with the least cloud cover is August (Cloud cover 35).
Average visibility in September
Chester, WV
- Average visibility in September: 5mi
The months with the highest visibility are April and November (6mi).
The months with the lowest visibility are January and February (4mi).
Chester, West Virginia, USA
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