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
The beginning of September brings a minor change in the average high-temperature, shifting from 81.3°F (27.4°C) in August to a still warm 75.4°F (24.1°C). In September, Deerfield experiences an average nighttime temperature of 54.7°F (12.6°C).Humidity
With an average relative humidity of 79%, September is the most humid month.Rainfall
In Deerfield, in September, during 13 rainfall days, 1.69" (43mm) of precipitation is typically accumulated. In Deerfield, during the entire year, the rain falls for 144.6 days and collects up to 23.46" (596mm) of precipitation.Snowfall
In Deerfield, snow does not fall in June through September.Daylight
The average length of the day in September in Deerfield is 12h and 25min.On the first day of September in Deerfield, sunrise is at 6:47 am and sunset at 7:46 pm. On the last day of the month, sunrise is at 7:13 am and sunset at 7:01 pm EDT.
Sunshine
In September, the average sunshine in Deerfield is 8.5h.UV index
In Deerfield, Virginia, the average daily maximum UV index in September is 4. A UV Index of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV rays for the average person.Note: A maximum high daily UV index of 4 during September translates into the following directions:
Be vigilant - A duty to shield skin and eyes from injury exists. Midday Sun has the strongest UV rays, making it crucial to limit exposure and find shade. Employ a wide-brim hat for potent defense against up to 50% of UV rays.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the average September temperature in Deerfield?
What is the most humid month in Deerfield?
What is the average humidity in September in Deerfield?
How much does it rain in Deerfield in September?
When it does not snow in Deerfield?
Does it snow in Deerfield in September?
How many hours of daylight does Deerfield have in September?
What time are sunrise and sunset in September in Deerfield?
How long on average sun shines in September in Deerfield?
What is the UV index intensity in September in Deerfield?
Average temperature in September
Deerfield, VA
- Average high temperature in September: 75.4°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 (39°F).
- Average low temperature in September: 54.7°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 (23.7°F).
Average pressure in September
Deerfield, VA
- 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
Deerfield, VA
- Average wind speed in September: 4.6mph
The windiest month (with the highest average wind speed) is February (7mph).
The calmest month (with the lowest average wind speed) is August (4.3mph).
Average humidity in September
Deerfield, VA
- Average humidity in September: 79%
The month with the highest relative humidity is September (79%).
The month with the lowest relative humidity is January (74%).
Average rainfall in September
Deerfield, VA
- Average rainfall in September: 1.69"
The wettest month (with the highest rainfall) is May (2.8").
The driest month (with the least rainfall) is January (1.18").
Average rainfall days in September
Deerfield, VA
- Average rainfall days in September: 13 days
The month with the highest number of rainy days is May (18.2 days).
The month with the least rainy days is November (7.5 days).
Average snowfall in September
Deerfield, VA
- Average snowfall in September: 0"
The month with the highest snowfall is March (4.25").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Deerfield, VA
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (5.4 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Deerfield, 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 36min).
- Average sunshine in September: 8h and 3min
The month with the most sunshine is July (Average sunshine: 10h and 30min).
The month with the least sunshine is December (Average sunshine: 5h and 12min).
Average sunshine days in September
Deerfield, VA
- Average sunshine days in September: 14.9 days
The month with the most sunshine days is November (21.3 days).
The month with the least sunshine days is May (11.3 days).
Average UV index in September
Deerfield, VA
- Average UV index in September: 4
The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in September
Deerfield, VA
- Average cloud cover in September: 40
The month with the most cloud cover is March (Cloud cover 45).
The months with the least cloud cover are June and July (Cloud cover 32).
Average visibility in September
Deerfield, VA
- Average visibility in September: 5mi
The months with the highest visibility are April, June, July and November (6mi).
The months with the lowest visibility are January, February, March, May, August, September, October and December (5mi).
Deerfield, Virginia, USA
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