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
Graterford experiences a temperature shift with the start of May, with average high-temperatures moving from a moderate 60.3°F (15.7°C) in April to an agreeable 70.7°F (21.5°C). Nighttime temperature in Graterford dips to a mean of 52.3°F (11.3°C) during May.Humidity
In Graterford, Pennsylvania, the average relative humidity in May is 79%.Rainfall
In May, in Graterford, the rain falls for 17 days. Throughout May, 2.6" (66mm) of precipitation is accumulated. Throughout the year, there are 146.5 rainfall days, and 27.87" (708mm) of precipitation is accumulated.Snowfall
In Graterford, snow does not fall in May through October.Daylight
The average length of the day in May in Graterford is 14h and 26min.On the first day of May, sunrise is at 6:00 am and sunset at 7:57 pm. On the last day of the month, sunrise is at 5:34 am and sunset at 8:24 pm EDT.
Sunshine
The average sunshine in May is 8.4h.UV index
May through August, with an average maximum UV index of 6, are months with the highest UV index in Graterford. A UV Index of 6 to 7 symbolizes a high threat to health from exposure to the Sun's UV radiation for ordinary individuals.Note: In May, a daily UV index of 6 turns into the following recommendations:
Deflect overexposure. Sun protection is a necessity. Stay in the shade and avoid direct Sun exposure from 10 a.m. to 4 p.m., a period when UV radiation is particularly strong, noting that parasols or canopies may not offer total sun 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.
Frequently asked questions
What is the average May temperature in Graterford?
What is the average humidity in May in Graterford?
How much does it rain in Graterford in May?
When it does not snow in Graterford?
Does it snow in Graterford in May?
What is the average length of the day in May in Graterford?
What time are sunrise and sunset in May in Graterford?
How many hours of sunshine does Graterford have in May?
When is the highest UV index in Graterford?
What is the UV index intensity in May in Graterford?
Average temperature in May
Graterford, PA
- Average high temperature in May: 70.7°F
The warmest month (with the highest average high temperature) is July (84.2°F).
The month with the lowest average high temperature is January (35.4°F).
- Average low temperature in May: 52.3°F
The month with the highest average low temperature is July (65.5°F).
The coldest month (with the lowest average low temperature) is January (23.2°F).
Average pressure in May
Graterford, PA
- Average pressure in May: 30.01"Hg
The month with the highest atmospheric pressure is November (30.12"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).
Average wind speed in May
Graterford, PA
- Average wind speed in May: 6.3mph
The windiest month (with the highest average wind speed) is March (8.1mph).
The calmest month (with the lowest average wind speed) is August (5mph).
Average humidity in May
Graterford, PA
- Average humidity in May: 79%
The months with the highest relative humidity are February and October (80%).
The months with the lowest relative humidity are April and July (75%).
Average rainfall in May
Graterford, PA
- Average rainfall in May: 2.6"
The wettest month (with the highest rainfall) is August (3.15").
The driest month (with the least rainfall) is September (1.81").
Average rainfall days in May
Graterford, PA
- Average rainfall days in May: 17 days
The months with the highest number of rainy days are May and July (17 days).
The month with the least rainy days is January (7.3 days).
Average snowfall in May
Graterford, PA
- Average snowfall in May: 0"
The month with the highest snowfall is March (3.7").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in May
Graterford, PA
- Average snowfall days in May: 0 days
The month with the highest number of snowfall days is January (5.8 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
Graterford, PA
- Average daylight in May: 14h and 2min
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 2min
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
Graterford, PA
- Average sunshine days in May: 12.3 days
The month with the most sunshine days is November (21 days).
The month with the least sunshine days is May (12.3 days).
Average UV index in May
Graterford, 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, March, November and December (UV index 2).
Average cloud cover in May
Graterford, PA
- Average cloud cover in May: 47
The month with the most cloud cover is February (Cloud cover 49).
The month with the least cloud cover is July (Cloud cover 32).
Average visibility in May
Graterford, 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).
Graterford, Pennsylvania, USA
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