May weather forecastSpring Grove, PA
May
Weather in May
May, the last month of the spring in Spring Grove, is a pleasant month, with temperature in the range of an average high of 70.9°F (21.6°C) and an average low of 52.5°F (11.4°C).Temperature
The start of May signals an increase in the average high-temperature, moving from an enjoyable 60.8°F (16°C) in April to a pleasant 70.9°F (21.6°C). During the nights in May, Spring Grove experiences a consistent average temperature of 52.5°F (11.4°C).Humidity
With an average relative humidity of 81%, May is the most humid month.Rainfall
The month with the most rainfall is May, when the rain falls for 15.1 days and typically aggregates up to 1.38" (35mm) of precipitation.Snowfall
January through May, November and December are months with snowfall. May is the last month it regularly snows. During 0.1 snowfall days, in May, Spring Grove aggregates 0.04" (1mm) of snow. Throughout the year, there are 18.1 snowfall days, and 3.27" (83mm) of snow is accumulated.Daylight
The average length of the day in May is 14h and 24min.On the first day of the month, sunrise is at 6:06 am and sunset at 8:02 pm. On the last day of May, sunrise is at 5:41 am and sunset at 8:29 pm EDT.
Sunshine
The average sunshine in May is 8.5h.UV index
The months with the highest UV index are May through August, with an average maximum UV index of 6. A UV Index of 6 to 7 symbolizes a high health vulnerability from unsafe exposure to UV radiation for the ordinary person.Note: The UV index of 6 during May translates into the following guidance:
Stick with precautions and abide by sun safety procedures. Evading sunburn is essential. Stay out of direct sunlight and seek shade between 10 a.m. and 4 p.m., when UV radiation is strongest, but remember that shade devices may not offer full sun protection. Experience reduced UV exposure by about half when donning a wide-brim hat. Be prepared! The intensity of the Sun's UV radiation can be amplified nearly double due to snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Spring Grove, PA
- Average high temperature in May: 70.9°F
The warmest month (with the highest average high temperature) is July (83.8°F).
The month with the lowest average high temperature is January (36°F).
- Average low temperature in May: 52.5°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 (23.2°F).
Average pressure in May
Spring Grove, PA
- 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 (29.94"Hg).
Average wind speed in May
Spring Grove, PA
- Average wind speed in May: 6.7mph
The windiest month (with the highest average wind speed) is March (8.7mph).
The calmest month (with the lowest average wind speed) is August (5.1mph).
Average humidity in May
Spring Grove, PA
- Average humidity in May: 81%
The month with the highest relative humidity is May (81%).
The month with the lowest relative humidity is April (75%).
Average rainfall in May
Spring Grove, PA
- Average rainfall in May: 1.38"
The wettest month (with the highest rainfall) is May (1.38").
The driest month (with the least rainfall) is January (0.67").
Average rainfall days in May
Spring Grove, PA
- Average rainfall days in May: 15.1 days
The month with the highest number of rainy days is May (15.1 days).
The month with the least rainy days is January (5.9 days).
Average snowfall in May
Spring Grove, PA
- Average snowfall in May: 0.04"
The month with the highest snowfall is January (1.02").
The months with the least snowfall are June, July, August, September and October (0").
Average snowfall days in May
Spring Grove, PA
- Average snowfall days in May: 0.1 days
The month with the highest number of snowfall days is January (5.8 days).
The months with the least snowfall days are June, July, August, September and October (0 days).
Average daylight in May /
Average sunshine in May
Spring Grove, 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 30min
The month with the most sunshine is July (Average sunshine: 10h and 36min).
The month with the least sunshine is February (Average sunshine: 4h and 42min).
Average sunshine days in May
Spring Grove, PA
- Average sunshine days in May: 13.2 days
The month with the most sunshine days is November (21.1 days).
The month with the least sunshine days is May (13.2 days).
Average UV index in May
Spring Grove, PA
- 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
Spring Grove, PA
- Average cloud cover in May: 46
The months with the most cloud cover are February and March (Cloud cover 48).
The month with the least cloud cover is July (Cloud cover 30).
Average visibility in May
Spring Grove, PA
- Average visibility in May: 5mi
The months with the highest visibility are January, February, March, April, June, July, August, October, November and December (6mi).
The months with the lowest visibility are May and September (5mi).
