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
An escalation in the average high-temperature is seen with the onset of May, moving from a refreshing 60.4°F (15.8°C) in April to a pleasant 70.3°F (21.3°C). An average low-temperature of 53.1°F (11.7°C) marks the nights throughout May.Humidity
The most humid month is May, with an average relative humidity of 81%.Rainfall
In May, the rain falls for 16.8 days. Throughout May, 2.56" (65mm) of precipitation is accumulated. In Stewartstown, Pennsylvania, during the entire year, the rain falls for 145.3 days and collects up to 24.88" (632mm) of precipitation.Snowfall
Months with snowfall are January through May, October through December. May is the last month it regularly snows. During 0.1 snowfall days, in May, Stewartstown aggregates 0.04" (1mm) of snow. Throughout the year, there are 19.2 snowfall days, and 10.59" (269mm) of snow is accumulated.Daylight
In Stewartstown, the average length of the day in May is 14h and 23min.On the first day of the month, sunrise is at 6:05 am and sunset at 8:00 pm. On the last day of May, sunrise is at 5:40 am and sunset at 8:28 pm EDT.
Sunshine
The average sunshine in May is 8.5h.UV index
The average daily maximum UV index in May is 5. A UV Index value of 3 to 5 symbolizes a moderate health risk from unprotected exposure to Sun's UV rays for ordinary individuals.Note: The daily high UV index of 5 in May translates into this advice:
Exercise prevention - Warding off sunburn is urged. The most potent solar radiation is around mid-day, so one should minimize exposure to direct sunlight during this period. Prioritize a wide-brim hat for comprehensive sun defense for your face, neck, eyes, and ears. Caution! The reflection of snow can nearly double the intensity of the Sun's UV radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the usual temperature for Stewartstown in May?
What is the most humid month?
What is the average humidity in May in Stewartstown?
How many days does it rain in May?
What is the last month it snows?
How many hours of daylight does Stewartstown have in May?
When are sunrise and sunset in May in Stewartstown?
How long on average sun shines in May?
How high is the UV index in May?
Average temperature in May
Stewartstown, PA
- Average high temperature in May: 70.3°F
The warmest month (with the highest average high temperature) is July (83.5°F).
The month with the lowest average high temperature is January (36.1°F).
- Average low temperature in May: 53.1°F
The month with the highest average low temperature is July (65.8°F).
The coldest month (with the lowest average low temperature) is January (23.5°F).
Average pressure in May
Stewartstown, PA
- Average pressure in May: 30.01"Hg
The month with the highest atmospheric pressure is November (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).
Average wind speed in May
Stewartstown, PA
- Average wind speed in May: 6.8mph
The windiest months (with the highest average wind speed) are February and March (8.9mph).
The calmest month (with the lowest average wind speed) is August (5.2mph).
Average humidity in May
Stewartstown, PA
- Average humidity in May: 81%
The month with the highest relative humidity is May (81%).
The months with the lowest relative humidity are January, March, April and November (76%).
Average rainfall in May
Stewartstown, PA
- Average rainfall in May: 2.56"
The wettest month (with the highest rainfall) is August (3.03").
The driest month (with the least rainfall) is February (1.38").
Average rainfall days in May
Stewartstown, PA
- Average rainfall days in May: 16.8 days
The month with the highest number of rainy days is May (16.8 days).
The month with the least rainy days is January (6.5 days).
Average snowfall in May
Stewartstown, PA
- Average snowfall in May: 0.04"
The month with the highest snowfall is March (3.43").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in May
Stewartstown, PA
- Average snowfall days in May: 0.1 days
The month with the highest number of snowfall days is January (5.5 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in May /
Average sunshine in May
Stewartstown, PA
- Average daylight in May: 14h and 2min
The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 24min).
- Average sunshine in May: 8h and 3min
The month with the most sunshine is July (Average sunshine: 10h and 42min).
The month with the least sunshine is February (Average sunshine: 4h and 42min).
Average sunshine days in May
Stewartstown, PA
- Average sunshine days in May: 11.1 days
The month with the most sunshine days is November (20.1 days).
The month with the least sunshine days is May (11.1 days).
Average UV index in May
Stewartstown, PA
- Average UV index in May: 5
The months with the highest UV index are 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
Stewartstown, PA
- Average cloud cover in May: 46
The months with the most cloud cover are February and March (Cloud cover 47).
The month with the least cloud cover is July (Cloud cover 30).
Average visibility in May
Stewartstown, 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).
Stewartstown, Pennsylvania, USA
Weather forecast for your location
2. Allow the app to use your location