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 ushers in an average high-temperature of a still moderately hot 76.1°F (24.5°C), aligning closely with the preceding month. In Onancock, the month of September records an average minimum temperature of 70.3°F (21.3°C), a slight dip from the daily highs.Humidity
The average relative humidity in September is 76%.Rainfall
In September, the rain falls for 14.6 days. Throughout September, 3.07" (78mm) of precipitation is accumulated. Throughout the year, there are 175.7 rainfall days, and 37.72" (958mm) of precipitation is accumulated.Snowfall
April through November are months without snowfall.Daylight
In September, the average length of the day is 12h and 25min.On the first day of the month, sunrise is at 6:33 am and sunset at 7:31 pm. On the last day of September, in Onancock, sunrise is at 6:58 am and sunset at 6:47 pm EDT.
Sunshine
In Onancock, the average sunshine in September is 9.6h.UV index
In September, the average daily maximum UV index is 5. A UV Index reading of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV rays for the average person.Note: The maximum daily UV index of 5 in September converts into the following recommendations:
Undertake precautions - Obligation exists to protect against skin and eye damage. Direct exposure to the Sun during its peak hours around mid-day should be minimized for safety. In bright sunlight, prioritize sunglasses that grant protection from UVA and UVB radiation.
Frequently asked questions
What are September temperatures in Onancock?
What is the average humidity in September in Onancock?
How much does it rain in Onancock in September?
When it does not snow in Onancock?
What is the average length of the day in September in Onancock?
When is the sunrise / sunset in September in Onancock?
How long on average sun shines in September in Onancock?
How high is the UV index in September in Onancock?
Average temperature in September
Onancock, VA
- Average high temperature in September: 76.1°F
The warmest month (with the highest average high temperature) is July (82°F).
The month with the lowest average high temperature is January (43.5°F).
- Average low temperature in September: 70.3°F
The month with the highest average low temperature is July (75.7°F).
The coldest month (with the lowest average low temperature) is January (35.2°F).
Average pressure in September
Onancock, VA
- Average pressure in September: 30.03"Hg
The month with the highest atmospheric pressure is November (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.95"Hg).
Average wind speed in September
Onancock, VA
- Average wind speed in September: 10.9mph
The windiest month (with the highest average wind speed) is January (13.1mph).
The calmest month (with the lowest average wind speed) is August (9.2mph).
Average humidity in September
Onancock, VA
- Average humidity in September: 76%
The month with the highest relative humidity is May (80%).
The months with the lowest relative humidity are January and November (74%).
Average rainfall in September
Onancock, VA
- Average rainfall in September: 3.07"
The wettest month (with the highest rainfall) is August (4.29").
The driest months (with the least rainfall) are January and November (2.44").
Average rainfall days in September
Onancock, VA
- Average rainfall days in September: 14.6 days
The month with the highest number of rainy days is July (19.5 days).
The month with the least rainy days is November (10.9 days).
Average snowfall in September
Onancock, VA
- Average snowfall in September: 0"
The month with the highest snowfall is February (0.79").
The months with the least snowfall are April, May, June, July, August, September, October and November (0").
Average snowfall days in September
Onancock, VA
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (2.4 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in September /
Average sunshine in September
Onancock, VA
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 14h and 42min).
The month with the shortest days is December (Average daylight: 9h and 36min).
- Average sunshine in September: 9h and 4min
The month with the most sunshine is July (Average sunshine: 11h and 0min).
The month with the least sunshine is February (Average sunshine: 5h and 12min).
Average sunshine days in September
Onancock, VA
- Average sunshine days in September: 13.3 days
The month with the most sunshine days is November (17.6 days).
The month with the least sunshine days is July (9.4 days).
Average UV index in September
Onancock, VA
- Average UV index in September: 5
The months with the highest UV index are July and August (UV index 7).
The month with the lowest UV index is January (UV index 2).
Average cloud cover in September
Onancock, VA
- Average cloud cover in September: 31
The month with the most cloud cover is March (Cloud cover 44).
The months with the least cloud cover are June, July and August (Cloud cover 26).
Average visibility in September
Onancock, VA
- Average visibility in September: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
Onancock, Virginia, USA
Weather forecast for your location
2. Allow the app to use your location
