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
Harkness in May sees a temperature change, with average high-temperatures moving from a fresh 54.1°F (12.3°C) in April to a refreshing 67.5°F (19.7°C). In May, Harkness encounters an average low-temperature of 46.6°F (8.1°C) during the night.Humidity
In May, the average relative humidity in Harkness is 79%.Rainfall
The month with the most rainfall is May, when the rain falls for 17.6 days and typically aggregates up to 2.44" (62mm) of precipitation.Snowfall
Months with snowfall in Harkness are January through May, October through December. May is the last month it regularly snows. During 0.5 snowfall days, in May, Harkness aggregates 0.2" (5mm) of snow. In Harkness, during the entire year, snow falls for 67.5 days and aggregates up to 20.75" (527mm) of snow.Daylight
In May, the average length of the day is 14h and 34min.On the first day of May in Harkness, sunrise is at 6:01 am and sunset at 8:05 pm. On the last day of the month, sunrise is at 5:34 am and sunset at 8:35 pm EDT.
Sunshine
The average sunshine in May in Harkness is 8.1h.UV index
May through August, with an average maximum UV index of 5, are months with the highest UV index. A UV Index of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV rays for the average person.Note: A maximum high UV index of 5 in May translates into the following recommendations:
Take care. Persons with lighter skin might suffer burns in less than 30 minutes. Given the potency of the midday Sun's UV radiation, one should avoid prolonged exposure. Consider a wide-brim hat essential for effective sun defense covering your face, neck, and eyes. Foresee this! The reflection from snow can nearly double the intensity of UV radiation from the Sun.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the temperatures in Harkness in May?
What is the average humidity in May in Harkness?
What is the rainiest month in Harkness?
How much does it rain in Harkness in May?
What is the last month it snows in Harkness?
What is the average length of the day in May in Harkness?
When is the sunrise / sunset in May in Harkness?
How many hours of sunshine does Harkness have in May?
What is the month with the highest UV index in Harkness?
How high is the UV index in May in Harkness?
Average temperature in May
Harkness, PA
- Average high temperature in May: 67.5°F
The warmest month (with the highest average high temperature) is July (80.4°F).
The month with the lowest average high temperature is January (29.3°F).
- Average low temperature in May: 46.6°F
The month with the highest average low temperature is July (57.6°F).
The coldest month (with the lowest average low temperature) is January (17.8°F).
Average pressure in May
Harkness, PA
- Average pressure in May: 30"Hg
The month with the highest atmospheric pressure is November (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).
Average wind speed in May
Harkness, PA
- Average wind speed in May: 7mph
The windiest month (with the highest average wind speed) is January (8.7mph).
The calmest month (with the lowest average wind speed) is August (5.3mph).
Average humidity in May
Harkness, PA
- Average humidity in May: 79%
The month with the highest relative humidity is February (85%).
The months with the lowest relative humidity are April, June and July (78%).
Average rainfall in May
Harkness, PA
- Average rainfall in May: 2.44"
The wettest month (with the highest rainfall) is May (2.44").
The driest month (with the least rainfall) is January (1.38").
Average rainfall days in May
Harkness, PA
- Average rainfall days in May: 17.6 days
The month with the highest number of rainy days is July (17.8 days).
The month with the least rainy days is January (7.3 days).
Average snowfall in May
Harkness, PA
- Average snowfall in May: 0.2"
The month with the highest snowfall is February (5.51").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in May
Harkness, PA
- Average snowfall days in May: 0.5 days
The month with the highest number of snowfall days is January (15.9 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in May /
Average sunshine in May
Harkness, PA
- Average daylight in May: 14h and 4min
The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 12min).
- Average sunshine in May: 8h and 1min
The month with the most sunshine is July (Average sunshine: 10h and 0min).
The months with the least sunshine are January, February and December (Average sunshine: 3h and 12min).
Average sunshine days in May
Harkness, PA
- Average sunshine days in May: 10.4 days
The month with the most sunshine days is September (14.4 days).
The month with the least sunshine days is February (8.8 days).
Average UV index in May
Harkness, PA
- Average UV index in May: 5
The months with the highest UV index are May, June, July and August (UV index 5).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover in May
Harkness, PA
- Average cloud cover in May: 50
The months with the most cloud cover are January, February and December (Cloud cover 68).
The months with the least cloud cover are July and August (Cloud cover 39).
Average visibility in May
Harkness, PA
- Average visibility in May: 5mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (5mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (5mi).
Harkness, Pennsylvania, USA
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