Contents
- Weather in May
- Frequently asked questions
- 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
Weather in May
Temperature
An increase in the average high-temperature marks May, moving from April's refreshing 63.5°F (17.5°C) to a pleasant 73.2°F (22.9°C). In Harpers Ferry, the average low-temperature during the month of May is a fresh 53.1°F (11.7°C).Humidity
In May, the average relative humidity in Harpers Ferry is 78%.Rainfall
May is the month with the most rainfall. Rain falls for 19.3 days and accumulates 3.35" (85mm) of precipitation.Snowfall
May through October are months without snowfall.Daylight
In Harpers Ferry, the average length of the day in May is 14h and 21min.On the first day of May in Harpers Ferry, sunrise is at 6:11 am and sunset at 8:04 pm. On the last day of the month, sunrise is at 5:46 am and sunset at 8:31 pm EDT.
Sunshine
In Harpers Ferry, the average sunshine in May is 8.8h.UV index
The months with the highest UV index are May through August, with an average maximum UV index of 6. A UV Index reading of 6 to 7 represents a high health risk from exposure to the Sun's UV rays for ordinary individuals.Note: A maximum high UV index of 6 in May translates into the following recommendations:
Implement preventive steps and embrace sun safety standards. Protection from skin and eye distress is compulsory. Limit your direct sun exposure, especially between 10 a.m. and 4 p.m., when UV radiation is strongest. Shade structures might not provide complete sun protection. A wide-brimmed hat provides unparalleled sun protection for sensitive areas like the eyes, ears, and neck.
Frequently asked questions
What are May temperatures in Harpers Ferry?
What is the average humidity in May in Harpers Ferry?
What is the rainiest month in Harpers Ferry?
How many days does it rain in May in Harpers Ferry?
When it does not snow in Harpers Ferry?
Does it snow in Harpers Ferry in May?
What is the average length of the day in May in Harpers Ferry?
When is the sunrise / sunset in May in Harpers Ferry?
How long on average sun shines in May in Harpers Ferry?
What are the months with the highest UV index in Harpers Ferry?
How high is the UV index in May in Harpers Ferry?
Average temperature in May
Harpers Ferry, WV
- Average high temperature in May: 73.2°F
The warmest month (with the highest average high temperature) is July (86.4°F).
The month with the lowest average high temperature is January (38.1°F).
- Average low temperature in May: 53.1°F
The month with the highest average low temperature is July (64.9°F).
The coldest month (with the lowest average low temperature) is January (24.3°F).
Average pressure in May
Harpers Ferry, WV
- 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
Harpers Ferry, WV
- Average wind speed in May: 5.8mph
The windiest month (with the highest average wind speed) is March (7.5mph).
The calmest month (with the lowest average wind speed) is August (4.4mph).
Average humidity in May
Harpers Ferry, WV
- Average humidity in May: 78%
The month with the highest relative humidity is October (79%).
The months with the lowest relative humidity are April and July (74%).
Average rainfall in May
Harpers Ferry, WV
- Average rainfall in May: 3.35"
The wettest month (with the highest rainfall) is May (3.35").
The driest month (with the least rainfall) is January (1.97").
Average rainfall days in May
Harpers Ferry, WV
- Average rainfall days in May: 19.3 days
The month with the highest number of rainy days is May (19.3 days).
The month with the least rainy days is January (9.1 days).
Average snowfall in May
Harpers Ferry, WV
- Average snowfall in May: 0"
The month with the highest snowfall is January (3.62").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in May
Harpers Ferry, WV
- Average snowfall days in May: 0 days
The month with the highest number of snowfall days is January (6.9 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
Harpers Ferry, WV
- Average daylight in May: 14h and 2min
The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 30min).
- Average sunshine in May: 8h and 5min
The month with the most sunshine is July (Average sunshine: 10h and 42min).
The months with the least sunshine are January and February (Average sunshine: 5h and 0min).
Average sunshine days in May
Harpers Ferry, WV
- Average sunshine days in May: 10.7 days
The month with the most sunshine days is November (18.6 days).
The month with the least sunshine days is May (10.7 days).
Average UV index in May
Harpers Ferry, WV
- 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
Harpers Ferry, WV
- Average cloud cover in May: 45
The months with the most cloud cover are February and March (Cloud cover 47).
The month with the least cloud cover is July (Cloud cover 31).
Average visibility in May
Harpers Ferry, WV
- Average visibility in May: 5mi
The months with the highest visibility are February, March, April, June, July, August and November (6mi).
The months with the lowest visibility are January, May, September, October and December (5mi).
Harpers Ferry, West Virginia, USA
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