May weather forecast
Clifton, VA

• Average temperature in May
• Average pressure in May
• Average wind speed in May
• Average humidity in May
• Average rainfall in May
• Average rainfall days in May
• Average snowfall in May
• Average snowfall days in May
• Average daylight in May
• Average sunshine in May
• Average sunshine days in May
• Average UV index in May
• Average cloud cover in May
• Average visibility in May

Average temperature in May
Clifton, VA

• Average high temperature in May: 74.8°F

The warmest month (with the highest average high temperature) is July (87.8°F).
The month with the lowest average high temperature is January (40.5°F).

• Average low temperature in May: 56.1°F

The month with the highest average low temperature is July (68.5°F).
The coldest month (with the lowest average low temperature) is January (26.8°F).

Average pressure in May
Clifton, VA

• Average pressure in May: 30.01"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 May
Clifton, VA

• Average wind speed in May: 6.1mph

The windiest month (with the highest average wind speed) is March (7.4mph).
The calmest months (with the lowest average wind speed) are July and August (4.8mph).

Average humidity in May
Clifton, VA

• Average humidity in May: 76%

The months with the highest relative humidity are October and December (77%).
The month with the lowest relative humidity is July (71%).

Average rainfall in May
Clifton, VA

• Average rainfall in May: 3.31"

The wettest month (with the highest rainfall) is August (3.94").
The driest month (with the least rainfall) is January (2.09").

Average rainfall days in May
Clifton, VA

• Average rainfall days in May: 18.4 days

The month with the highest number of rainy days is May (18.4 days).
The month with the least rainy days is November (9.3 days).

Average snowfall in May
Clifton, VA

• Average snowfall in May: 0"

The month with the highest snowfall is January (3.58").
The months with the least snowfall are May, June, July, August, September and October (0").

Average snowfall days in May
Clifton, VA

• Average snowfall days in May: 0 days

The month with the highest number of snowfall days is January (5.2 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

Average daylight in May /
Average sunshine in May
Clifton, VA

• Average daylight in May: 14h 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 30min).

• Average sunshine in May: 9h and 1min

The month with the most sunshine is July (Average sunshine: 10h and 48min).
The months with the least sunshine are January, February and December (Average sunshine: 5h and 12min).

Average sunshine days in May
Clifton, VA

• Average sunshine days in May: 10.5 days

The month with the most sunshine days is November (19.3 days).
The months with the least sunshine days are May and July (10.5 days).

Average UV index in May
Clifton, VA

• Average UV index in May: 6

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, November and December (UV index 2).

Average cloud cover in May
Clifton, VA

• Average cloud cover in May: 42

The month with the most cloud cover is March (Cloud cover 46).
The month with the least cloud cover is July (Cloud cover 30).

Average visibility in May
Clifton, VA

• Average visibility in May: 5mi

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).