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 sea temperature 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
May's arrival is marked by an increase in the average high-temperature, moving from a chilly 48.7°F (9.3°C) in April to a moderate 59.9°F (15.5°C). The average low-temperature, in May, is a frosty 48.7°F (9.3°C).Humidity
In May, the average relative humidity in Erie is 81%.Rainfall
In Erie, Pennsylvania, during May, the rain falls for 9.3 days and regularly aggregates up to 0.67" (17mm) of precipitation. In Erie, during the entire year, the rain falls for 95.5 days and collects up to 7.17" (182mm) of precipitation.Snowfall
January through May, November and December are months with snowfall. May is the last month it regularly snows. During 0.3 snowfall days, in May, Erie aggregates 0.04" (1mm) of snow. Throughout the year, there are 28.4 snowfall days, and 1.85" (47mm) of snow is accumulated.Ocean temperature
In Erie, the average seawater temperature in May is 47.3°F (8.5°C).Note: At temperatures below 50°F (10°C), swimming in a suitably protected swimsuit is feasible; otherwise, cold shock and loss of breathing control are imminent. Even a short swim, without thermal protection, at temperatures around 55.4°F (13°C) is not comfortable.
Daylight
In May, the average length of the day in Erie is 14h and 35min.On the first day of May in Erie, Pennsylvania, sunrise is at 6:14 am and sunset at 8:19 pm. On the last day of the month, sunrise is at 5:46 am and sunset at 8:49 pm EDT.
Sunshine
In May, the average sunshine is 9h.UV index
The average daily maximum UV index in May is 5. A UV Index reading of 3 to 5 represents a moderate threat to health from unsafe exposure to UV radiation for the ordinary person.Note: The UV index of 5 during May leads to these advisories:
Take precautions - Protection against sunburn is recommended. The best time to avoid the Sun's harmful UV radiation is during midday when it's most potent. A hat with a broad brim is indispensable, filtering out up to half of UV rays. Mark this! Snow reflection can nearly double the UV radiation intensity from the Sun.
Frequently asked questions
What is the average May temperature in Erie?
What is the average humidity in May in Erie?
How many days does it rain in May in Erie?
What is the last month it snows in Erie?
How cold is the water in May in Erie?
How many hours of daylight does Erie have in May?
What time are sunrise and sunset in May in Erie?
How many hours of sunshine does Erie have in May?
What is the UV index reading in May in Erie?
Average temperature in May
Erie, PA
- Average high temperature in May: 59.9°F
The warmest month (with the highest average high temperature) is July (74.8°F).
The month with the lowest average high temperature is January (29.8°F).
- Average low temperature in May: 48.7°F
The month with the highest average low temperature is July (64.4°F).
The coldest month (with the lowest average low temperature) is January (21.6°F).
Average pressure in May
Erie, PA
- Average pressure in May: 29.99"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 May
Erie, PA
- Average wind speed in May: 8.8mph
The windiest month (with the highest average wind speed) is January (13.5mph).
The calmest month (with the lowest average wind speed) is July (7.8mph).
Average humidity in May
Erie, PA
- Average humidity in May: 81%
The month with the highest relative humidity is February (86%).
The months with the lowest relative humidity are August, September, October and November (78%).
Average rainfall in May
Erie, PA
- Average rainfall in May: 0.67"
The wettest month (with the highest rainfall) is October (0.83").
The driest month (with the least rainfall) is September (0.35").
Average rainfall days in May
Erie, PA
- Average rainfall days in May: 9.3 days
The month with the highest number of rainy days is August (11.7 days).
The month with the least rainy days is January (4 days).
Average snowfall in May
Erie, PA
- Average snowfall in May: 0.04"
The month with the highest snowfall is February (0.71").
The months with the least snowfall are June, July, August, September and October (0").
Average snowfall days in May
Erie, PA
- Average snowfall days in May: 0.3 days
The month with the highest number of snowfall days is January (7.8 days).
The months with the least snowfall days are June, July, August, September and October (0 days).
Average sea temperature in May
Erie, PA
- Average sea temperature in May: 47.2°F
The best month for swimming (with the highest average sea temperature) is August (75.1°F).
The coldest month (with the lowest average sea temperature) is February (32.5°F).
Average daylight in May /
Average sunshine in May
Erie, 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: 9h and 0min
The month with the most sunshine is July (Average sunshine: 10h and 36min).
The month with the least sunshine is January (Average sunshine: 2h and 24min).
Average sunshine days in May
Erie, PA
- Average sunshine days in May: 18.3 days
The month with the most sunshine days is March (21.3 days).
The month with the least sunshine days is August (16.3 days).
Average UV index in May
Erie, PA
- Average UV index in May: 5
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover in May
Erie, PA
- Average cloud cover in May: 40
The month with the most cloud cover is January (Cloud cover 76).
The months with the least cloud cover are July and August (Cloud cover 28).
Average visibility in May
Erie, PA
- Average visibility in May: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
Erie, Pennsylvania, USA
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