September weather forecastMontross, VA
September
Weather in September
September, the first month of the autumn in Montross, is also a moderately hot month, with an average temperature ranging between min 62.2°F (16.8°C) and max 79°F (26.1°C).Temperature
A mild shift in the average high-temperature occurs in September, reducing from a warm 85.5°F (29.7°C) in August to a still moderately hot 79°F (26.1°C). In September, the recorded average low-temperature in Montross, Virginia, is an enjoyable 62.2°F (16.8°C).Humidity
The average relative humidity in September in Montross is 77%.Rainfall
September is the month with the least rainfall. Rain falls for 13.3 days and accumulates 1.97" (50mm) of precipitation.Snowfall
May through October are months without snowfall in Montross.Daylight
In September, the average length of the day in Montross is 12h and 25min.On the first day of September, sunrise is at 6:37 am and sunset at 7:36 pm. On the last day of the month, sunrise is at 7:02 am and sunset at 6:51 pm EDT.
Sunshine
In September, the average sunshine in Montross is 8.8h.UV index
In Montross, Virginia, the average daily maximum UV index in September is 5. A UV Index of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV rays for ordinary individuals.Note: A daily high UV index of 5 in September leads to these guidelines:
Exercise prevention - Protecting skin and eyes from harm is required. Exposing oneself to the midday Sun can be harmful due to the strong UV radiation; limit your time outside. Prioritize a wide-brim hat for comprehensive sun defense for your face, neck, eyes, and ears.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Montross, VA
- Average high temperature in September: 79°F
The warmest month (with the highest average high temperature) is July (87.4°F).
The month with the lowest average high temperature is January (42.3°F).
- Average low temperature in September: 62.2°F
The month with the highest average low temperature is July (69.4°F).
The coldest month (with the lowest average low temperature) is January (28.8°F).
Average pressure in September
Montross, 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
Montross, VA
- Average wind speed in September: 6mph
The windiest month (with the highest average wind speed) is April (8mph).
The calmest months (with the lowest average wind speed) are July and August (5.5mph).
Average humidity in September
Montross, VA
- Average humidity in September: 77%
The months with the highest relative humidity are May and December (78%).
The month with the lowest relative humidity is April (73%).
Average rainfall in September
Montross, VA
- Average rainfall in September: 1.97"
The wettest months (with the highest rainfall) are July and August (3.19").
The driest month (with the least rainfall) is September (1.97").
Average rainfall days in September
Montross, VA
- Average rainfall days in September: 13.3 days
The month with the highest number of rainy days is May (17.3 days).
The month with the least rainy days is January (9.4 days).
Average snowfall in September
Montross, VA
- Average snowfall in September: 0"
The month with the highest snowfall is January (1.85").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in September
Montross, VA
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (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
Montross, VA
- Average daylight in September: 12h and 24min
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 48min
The month with the most sunshine is July (Average sunshine: 10h and 36min).
The months with the least sunshine are February and December (Average sunshine: 5h and 6min).
Average sunshine days in September
Montross, VA
- Average sunshine days in September: 15.5 days
The month with the most sunshine days is November (19.4 days).
The month with the least sunshine days is May (11.9 days).
Average UV index in September
Montross, VA
- Average UV index in September: 5
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 and December (UV index 2).
Average cloud cover in September
Montross, VA
- Average cloud cover in September: 38
The month with the most cloud cover is March (Cloud cover 46).
The month with the least cloud cover is July (Cloud cover 31).
Average visibility in September
Montross, VA
- Average visibility in September: 6mi
The months with the highest visibility are January, February, March, April, June, July, August, September, October, November and December (6mi).
The month with the lowest visibility is May (5mi).
