May weather forecastAlliance Furnace, PA
May
Weather in May
The last month of the spring, May, is an agreeable month in Alliance Furnace, Pennsylvania, with an average temperature varying between 50.9°F (10.5°C) and 71.8°F (22.1°C).Temperature
An escalation in the average high-temperature is seen with the onset of May, moving from a mild 60.1°F (15.6°C) in April to a pleasant 71.8°F (22.1°C). Throughout May nights, Alliance Furnace registers an average low-temperature of 50.9°F (10.5°C).Humidity
In Alliance Furnace, the average relative humidity in May is 79%.Rainfall
The month with the most rainfall in Alliance Furnace is May, when the rain falls for 16.8 days and typically aggregates up to 1.57" (40mm) of precipitation.Snowfall
January through May, October through December are months with snowfall in Alliance Furnace. May is the last month it regularly snows in Alliance Furnace. During 0.1 snowfall days, in May, Alliance Furnace aggregates 0.16" (4mm) of snow. Throughout the year, in Alliance Furnace, there are 53.8 snowfall days, and 10.79" (274mm) of snow is accumulated.Daylight
In May, the average length of the day is 14h and 25min.On the first day of May, 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 8:41 pm EDT.
Sunshine
In Alliance Furnace, Pennsylvania, the average sunshine in May is 8.8h.UV index
The average daily maximum UV index in May in Alliance Furnace, Pennsylvania, is 5. A UV Index reading of 3 to 5 represents a medium vulnerability from unprotected exposure to Sun's UV rays for the average person.Note: The maximum UV index of 5 during May leads to these instructions:
Preventative actions are necessary - Suggestions to safeguard against sun damage are in order. The solar radiation around mid-day is intense; avoid the Sun and stay safe. A hat with a generous brim can prevent nearly 50% of UV rays from reaching your eyes. Be watchful! The reflection of snow can enhance the intensity of the Sun's UV radiation nearly double.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Alliance Furnace, PA
- Average high temperature in May: 71.8°F
The warmest month (with the highest average high temperature) is July (82.6°F).
The month with the lowest average high temperature is January (34.2°F).
- Average low temperature in May: 50.9°F
The month with the highest average low temperature is July (60.8°F).
The coldest month (with the lowest average low temperature) is January (21.2°F).
Average pressure in May
Alliance Furnace, PA
- Average pressure in May: 30"Hg
The month with the highest atmospheric pressure is November (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.95"Hg).
Average wind speed in May
Alliance Furnace, PA
- Average wind speed in May: 6.2mph
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
Alliance Furnace, PA
- Average humidity in May: 79%
The month with the highest relative humidity is February (85%).
The months with the lowest relative humidity are April, July and August (77%).
Average rainfall in May
Alliance Furnace, PA
- Average rainfall in May: 1.57"
The wettest month (with the highest rainfall) is May (1.57").
The driest month (with the least rainfall) is September (0.67").
Average rainfall days in May
Alliance Furnace, 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 February (7.7 days).
Average snowfall in May
Alliance Furnace, PA
- Average snowfall in May: 0.16"
The month with the highest snowfall is January (2.64").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in May
Alliance Furnace, PA
- Average snowfall days in May: 0.1 days
The month with the highest number of snowfall days is January (15.4 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in May /
Average sunshine in May
Alliance Furnace, 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 48min
The month with the most sunshine is August (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 3h and 0min).
Average sunshine days in May
Alliance Furnace, PA
- Average sunshine days in May: 11 days
The month with the most sunshine days is November (17.9 days).
The month with the least sunshine days is January (9.7 days).
Average UV index in May
Alliance Furnace, 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, February, March, November and December (UV index 2).
Average cloud cover in May
Alliance Furnace, PA
- Average cloud cover in May: 46
The month with the most cloud cover is January (Cloud cover 69).
The month with the least cloud cover is August (Cloud cover 35).
Average visibility in May
Alliance Furnace, PA
- Average visibility in May: 5mi
The months with the highest visibility are April and November (6mi).
The months with the lowest visibility are January, February, March, May, June, July, August, September, October and December (5mi).





