May weather forecastGreenock, PA
May
Weather in May
The last month of the spring, May, is an agreeable month in Greenock, Pennsylvania, with an average temperature ranging between max 71.8°F (22.1°C) and min 51.4°F (10.8°C).Temperature
An upsurge in temperatures occurs as April gives way to May, with average highs shifting from a mild 60.1°F (15.6°C) to a pleasant 71.8°F (22.1°C). Throughout the nights in May, Greenock experiences an average low-temperature of 51.4°F (10.8°C).Humidity
In Greenock, the average relative humidity in May is 78%.Rainfall
May is the month with the most rainfall. Rain falls for 18.3 days and accumulates 2.28" (58mm) of precipitation.Snowfall
In Greenock, snow does not fall in May through September.Daylight
In Greenock, the average length of the day in May is 14h and 26min.On the first day of May in Greenock, sunrise is at 6:17 am and sunset at 8:14 pm. On the last day of the month, sunrise is at 5:51 am and sunset at 8:42 pm EDT.
Sunshine
In May, the average sunshine is 8.9h.UV index
May through August, with an average maximum UV index of 6, are months with the highest UV index. A UV Index of 6 to 7 symbolizes a high health risk from unsafe exposure to UV radiation for ordinary individuals.Note: The UV index of 6 during May leads to these advisories:
Take precautions and utilize sun safety practices. Protection against skin and eye damage is required. Avoid direct Sun exposure from 10 a.m. to 4 p.m., a period when UV radiation is most intense, and remember that not all shade structures provide full protection. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Greenock, PA
- Average high temperature in May: 71.8°F
The warmest month (with the highest average high temperature) is July (82.9°F).
The month with the lowest average high temperature is January (33.6°F).
- Average low temperature in May: 51.4°F
The month with the highest average low temperature is July (61.5°F).
The coldest month (with the lowest average low temperature) is January (20.7°F).
Average pressure in May
Greenock, PA
- Average pressure in May: 30"Hg
The month with the highest atmospheric pressure is November (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.95"Hg).
Average wind speed in May
Greenock, PA
- Average wind speed in May: 6.1mph
The windiest month (with the highest average wind speed) is January (8mph).
The calmest month (with the lowest average wind speed) is August (4.7mph).
Average humidity in May
Greenock, PA
- Average humidity in May: 78%
The month with the highest relative humidity is February (85%).
The months with the lowest relative humidity are April, July and August (76%).
Average rainfall in May
Greenock, PA
- Average rainfall in May: 2.28"
The wettest month (with the highest rainfall) is May (2.28").
The driest months (with the least rainfall) are January and November (1.14").
Average rainfall days in May
Greenock, PA
- Average rainfall days in May: 18.3 days
The month with the highest number of rainy days is May (18.3 days).
The month with the least rainy days is January (9.1 days).
Average snowfall in May
Greenock, PA
- Average snowfall in May: 0"
The month with the highest snowfall is January (2.13").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in May
Greenock, PA
- Average snowfall days in May: 0 days
The month with the highest number of snowfall days is January (14.2 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight in May /
Average sunshine in May
Greenock, PA
- Average daylight in May: 14h and 24min
The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 24min).
- Average sunshine in May: 8h and 54min
The month with the most sunshine is August (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 3h and 0min).
Average sunshine days in May
Greenock, PA
- Average sunshine days in May: 10.3 days
The month with the most sunshine days is November (17 days).
The month with the least sunshine days is February (9 days).
Average UV index in May
Greenock, PA
- Average UV index in May: 6
The months with the highest UV index are May, June, July and August (UV index 6).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in May
Greenock, PA
- Average cloud cover in May: 44
The month with the most cloud cover is January (Cloud cover 68).
The month with the least cloud cover is August (Cloud cover 32).
Average visibility in May
Greenock, PA
- Average visibility in May: 5mi
The months with the highest visibility are April, June, July, August and November (6mi).
The months with the lowest visibility are January, February, March, May, September, October and December (5mi).





