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 commencement of September, Jeffersonton records a moderate temperature decline, with the average high easing from August's moderately hot 84.9°F (29.4°C) to a still warm 78.1°F (25.6°C). In the month of September, Jeffersonton records a consistent average low-temperature of 58.6°F (14.8°C).Humidity
In Jeffersonton, the average relative humidity in September is 76%.Rainfall
September is the month with the least rainfall in Jeffersonton. Rain falls for 13.2 days and accumulates 1.85" (47mm) of precipitation.Snowfall
June through October are months without snowfall.Daylight
In September, the average length of the day in Jeffersonton is 12h and 26min.On the first day of the month, sunrise is at 6:41 am and sunset at 7:41 pm. On the last day of September, in Jeffersonton, sunrise is at 7:07 am and sunset at 6:55 pm EDT.
Sunshine
The average sunshine in September is 8.9h.UV index
In September, the average daily maximum UV index in Jeffersonton, Virginia, is 4. A UV Index reading of 3 to 5 represents a medium health hazard from unsafe exposure to UV radiation for average individuals.Note: A maximum daily UV index of 4 during September morphs into the following directions:
Undertake protective steps - Preventing sun damage is advised. To prevent harmful UV exposure, minimize direct contact with the Sun around midday. Tightly woven clothing, when worn loosely, shields effectively against the Sun.
Frequently asked questions
What are September temperatures in Jeffersonton?
What is the average humidity in September in Jeffersonton?
What is the driest month in Jeffersonton?
How much does it rain in Jeffersonton in September?
When it does not snow in Jeffersonton?
What is the average length of the day in September in Jeffersonton?
What time are sunrise and sunset in September in Jeffersonton?
How many hours of sunshine does Jeffersonton have in September?
What is the UV index reading in September in Jeffersonton?
Average temperature in September
Jeffersonton, VA
- Average high temperature in September: 78.1°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 (40.3°F).
- Average low temperature in September: 58.6°F
The month with the highest average low temperature is July (65.8°F).
The coldest month (with the lowest average low temperature) is January (25.7°F).
Average pressure in September
Jeffersonton, VA
- Average pressure in September: 30.05"Hg
The month with the highest atmospheric pressure is November (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.95"Hg).
Average wind speed in September
Jeffersonton, VA
- Average wind speed in September: 4.9mph
The windiest months (with the highest average wind speed) are March and April (6.8mph).
The calmest month (with the lowest average wind speed) is August (4.4mph).
Average humidity in September
Jeffersonton, VA
- Average humidity in September: 76%
The month with the highest relative humidity is December (78%).
The month with the lowest relative humidity is July (72%).
Average rainfall in September
Jeffersonton, VA
- Average rainfall in September: 1.85"
The wettest month (with the highest rainfall) is August (3.27").
The driest month (with the least rainfall) is September (1.85").
Average rainfall days in September
Jeffersonton, VA
- Average rainfall days in September: 13.2 days
The month with the highest number of rainy days is May (17.3 days).
The month with the least rainy days is November (9.4 days).
Average snowfall in September
Jeffersonton, VA
- Average snowfall in September: 0"
The month with the highest snowfall is January (3.74").
The months with the least snowfall are June, July, August, September and October (0").
Average snowfall days in September
Jeffersonton, VA
- 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 June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Jeffersonton, VA
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 30min).
- Average sunshine in September: 8h and 5min
The month with the most sunshine is July (Average sunshine: 10h and 48min).
The month with the least sunshine is December (Average sunshine: 5h and 18min).
Average sunshine days in September
Jeffersonton, VA
- Average sunshine days in September: 15.1 days
The month with the most sunshine days is November (19.6 days).
The month with the least sunshine days is July (11.7 days).
Average UV index in September
Jeffersonton, VA
- Average UV index in September: 4
The months with the highest UV index are May, 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
Jeffersonton, VA
- Average cloud cover in September: 37
The month with the most cloud cover is March (Cloud cover 46).
The month with the least cloud cover is July (Cloud cover 30).
Average visibility in September
Jeffersonton, VA
- Average visibility in September: 5mi
The months with the highest visibility are January, March, April, June, July, August and November (6mi).
The months with the lowest visibility are February, May, September, October and December (5mi).
Jeffersonton, Virginia, USA
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