September weather forecast
Upperville, NY

• 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

Average temperature in September
Upperville, NY

• Average high temperature in September: 68.9°F

The warmest month (with the highest average high temperature) is July (77.9°F).
The month with the lowest average high temperature is January (26.8°F).

• Average low temperature in September: 49.6°F

The month with the highest average low temperature is July (57°F).
The coldest month (with the lowest average low temperature) is January (15.4°F).

Average pressure in September
Upperville, NY

• Average pressure in September: 30.06"Hg

The month with the highest atmospheric pressure is November (30.1"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).

Average wind speed in September
Upperville, NY

• Average wind speed in September: 6.5mph

The windiest month (with the highest average wind speed) is January (10.1mph).
The calmest month (with the lowest average wind speed) is August (6mph).

Average humidity in September
Upperville, NY

• Average humidity in September: 81%

The month with the highest relative humidity is February (88%).
The months with the lowest relative humidity are April and May (79%).

Average rainfall in September
Upperville, NY

• Average rainfall in September: 2.28"

The wettest month (with the highest rainfall) is May (3.27").
The driest month (with the least rainfall) is September (2.28").

Average rainfall days in September
Upperville, NY

• Average rainfall days in September: 13.7 days

The months with the highest number of rainy days are May and July (18.3 days).
The month with the least rainy days is February (8.2 days).

Average snowfall in September
Upperville, NY

• Average snowfall in September: 0"

The month with the highest snowfall is February (9.57").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in September
Upperville, NY

• Average snowfall days in September: 0 days

The month with the highest number of snowfall days is January (19.9 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in September /
Average sunshine in September
Upperville, NY

• Average daylight in September: 12h and 3min

The month with the longest days is June (Average daylight: 15h and 18min).
The month with the shortest days is December (Average daylight: 9h and 6min).

• Average sunshine in September: 8h and 4min

The month with the most sunshine is July (Average sunshine: 10h and 6min).
The month with the least sunshine is February (Average sunshine: 2h and 30min).

Average sunshine days in September
Upperville, NY

• Average sunshine days in September: 13.8 days

The month with the most sunshine days is September (13.8 days).
The month with the least sunshine days is February (4.6 days).

Average UV index in September
Upperville, NY

• Average UV index in September: 3

The months with the highest UV index are June, July and August (UV index 5).
The months with the lowest UV index are January, February, November and December (UV index 1).

Average cloud cover in September
Upperville, NY

• Average cloud cover in September: 39

The month with the most cloud cover is February (Cloud cover 75).
The months with the least cloud cover are July and August (Cloud cover 37).

Average visibility in September
Upperville, NY

• Average visibility in September: 5mi

The months with the highest visibility are March, April, May, June, July, August, September, October, November and December (5mi).
The months with the lowest visibility are January and February (4mi).