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 subtle change in temperatures is noted as August gives way to September, with average highs reducing from 82.4°F (28°C) to a still moderately hot 76.6°F (24.8°C). During the month of September, Jacksonville's nighttime temperature lowers to an average of 55.4°F (13°C).Humidity
In September, the average relative humidity is 78%.Rainfall
September is the month with the least rainfall. Rain falls for 13.2 days and accumulates 1.93" (49mm) of precipitation.Snowfall
In Jacksonville, snow does not fall in June through September.Daylight
In Jacksonville, the average length of the day in September is 12h and 26min.On the first day of September in Jacksonville, sunrise is at 6:51 am and sunset at 7:51 pm. On the last day of the month, sunrise is at 7:17 am and sunset at 7:05 pm EDT.
Sunshine
In September, the average sunshine is 8.5h.UV index
In Jacksonville, the average daily maximum UV index in September is 4. A UV Index reading of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV rays for ordinary individuals.Note: The average daily UV index of 4 in September transforms into the following instructions:
Preventative actions are necessary - Recommendations to ward off sunburn are given. Sun's radiation is most powerful around mid-day, so it's best to limit outdoor activities during this time. For a sun-safe wardrobe, go for clothes that are tightly woven and generously sized.
Frequently asked questions
What is the temperature in September in Jacksonville?
What is the average humidity in September in Jacksonville?
What is the driest month in Jacksonville?
How many days does it rain in September in Jacksonville?
When it does not snow in Jacksonville?
Does it snow in Jacksonville in September?
What is the average length of the day in September in Jacksonville?
What time are sunrise and sunset in September in Jacksonville?
How long on average sun shines in September in Jacksonville?
What is the UV index reading in September in Jacksonville?
Average temperature in September
Jacksonville, WV
- Average high temperature in September: 76.6°F
The warmest month (with the highest average high temperature) is July (83.7°F).
The month with the lowest average high temperature is January (37°F).
- Average low temperature in September: 55.4°F
The month with the highest average low temperature is July (62.1°F).
The coldest month (with the lowest average low temperature) is January (23.5°F).
Average pressure in September
Jacksonville, WV
- Average pressure in September: 30.06"Hg
The month with the highest atmospheric pressure is November (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.96"Hg).
Average wind speed in September
Jacksonville, WV
- Average wind speed in September: 4.3mph
The windiest months (with the highest average wind speed) are January and February (6.8mph).
The calmest month (with the lowest average wind speed) is August (4.1mph).
Average humidity in September
Jacksonville, WV
- Average humidity in September: 78%
The months with the highest relative humidity are January and February (83%).
The month with the lowest relative humidity is August (76%).
Average rainfall in September
Jacksonville, WV
- Average rainfall in September: 1.93"
The wettest month (with the highest rainfall) is May (4.49").
The driest month (with the least rainfall) is September (1.93").
Average rainfall days in September
Jacksonville, WV
- Average rainfall days in September: 13.2 days
The month with the highest number of rainy days is May (20.8 days).
The month with the least rainy days is November (11.4 days).
Average snowfall in September
Jacksonville, WV
- Average snowfall in September: 0"
The month with the highest snowfall is January (8.15").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Jacksonville, WV
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (16.6 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Jacksonville, WV
- 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: 8h and 3min
The month with the most sunshine is August (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 3h and 18min).
Average sunshine days in September
Jacksonville, WV
- Average sunshine days in September: 13.6 days
The month with the most sunshine days is October (14.1 days).
The months with the least sunshine days are January and February (7.6 days).
Average UV index in September
Jacksonville, WV
- Average UV index in September: 4
The months with the highest UV index are May, 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
Jacksonville, WV
- Average cloud cover in September: 38
The month with the most cloud cover is January (Cloud cover 67).
The month with the least cloud cover is August (Cloud cover 35).
Average visibility in September
Jacksonville, WV
- Average visibility in September: 5mi
The month with the highest visibility is November (6mi).
The months with the lowest visibility are January and February (4mi).
Jacksonville, West Virginia, USA
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