September weather forecastMonterey, VA
September
Weather in September
The first month of the autumn, September, is also an agreeable month in Monterey, Virginia, with an average temperature varying between 69.4°F (20.8°C) and 49.6°F (9.8°C).Temperature
Monterey registers an average high-temperature of an agreeable 69.4°F (20.8°C) at the commencement of September, closely related to the preceding month. An average low-temperature of 49.6°F (9.8°C) is observed during the September nights.Humidity
The average relative humidity in September is 83%.Rainfall
In Monterey, in September, during 14.6 rainfall days, 1.5" (38mm) of precipitation is typically accumulated. In Monterey, during the entire year, the rain falls for 153.4 days and collects up to 23.23" (590mm) of precipitation.Snowfall
June through September are months without snowfall.Daylight
The average length of the day in September is 12h and 25min.On the first day of the month, sunrise is at 6:48 am and sunset at 7:47 pm. On the last day of September, sunrise is at 7:13 am and sunset at 7:02 pm EDT.
Sunshine
In Monterey, the average sunshine in September is 7.5h.UV index
The average daily maximum UV index in September is 3. A UV Index of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV rays for average individuals.Note: In September, the maximum UV index of 3 suggests this advice:
Act with care - The suggestion to avoid sunburn is emphasized. The Sun's radiation is especially intense around midday; try to stay in shade during this period. Experience reduced UV exposure by about half when donning a wide-brim hat.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Monterey, VA
- Average high temperature in September: 69.4°F
The warmest month (with the highest average high temperature) is July (75.9°F).
The month with the lowest average high temperature is January (31.6°F).
- Average low temperature in September: 49.6°F
The month with the highest average low temperature is July (55.8°F).
The coldest month (with the lowest average low temperature) is January (18.3°F).
Average pressure in September
Monterey, 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 (29.97"Hg).
Average wind speed in September
Monterey, VA
- Average wind speed in September: 4.6mph
The windiest month (with the highest average wind speed) is February (8.6mph).
The calmest month (with the lowest average wind speed) is August (4.2mph).
Average humidity in September
Monterey, VA
- Average humidity in September: 83%
The month with the highest relative humidity is February (87%).
The month with the lowest relative humidity is June (80%).
Average rainfall in September
Monterey, VA
- Average rainfall in September: 1.5"
The wettest month (with the highest rainfall) is May (2.72").
The driest month (with the least rainfall) is November (1.3").
Average rainfall days in September
Monterey, VA
- Average rainfall days in September: 14.6 days
The month with the highest number of rainy days is May (20.1 days).
The month with the least rainy days is February (6.7 days).
Average snowfall in September
Monterey, VA
- Average snowfall in September: 0"
The month with the highest snowfall is January (7.64").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Monterey, VA
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (18.4 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Monterey, 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 30min).
- Average sunshine in September: 7h and 30min
The month with the most sunshine is June (Average sunshine: 9h and 12min).
The month with the least sunshine is January (Average sunshine: 3h and 30min).
Average sunshine days in September
Monterey, VA
- Average sunshine days in September: 11.7 days
The month with the most sunshine days is October (14.6 days).
The month with the least sunshine days is May (7.7 days).
Average UV index in September
Monterey, VA
- Average UV index in September: 3
The months with the highest UV index are June, July and August (UV index 5).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in September
Monterey, VA
- Average cloud cover in September: 51
The month with the most cloud cover is January (Cloud cover 68).
The months with the least cloud cover are June, July and August (Cloud cover 47).
Average visibility in September
Monterey, VA
- Average visibility in September: 4mi
The months with the highest visibility are April and November (5mi).
The months with the lowest visibility are January, February, March, May, June, July, August, September, October and December (4mi).
