May weather forecastJapan, PA
May
Weather in May
May, the last month of the spring in Japan, is a refreshing month, with an average temperature ranging between max 66.7°F (19.3°C) and min 48.4°F (9.1°C).Temperature
As April transitions into May, a change in temperatures is observed, with average highs moving from a cool 55°F (12.8°C) to a comfortable 66.7°F (19.3°C). May nights in Japan cool down to an average low-temperature of 48.4°F (9.1°C).Humidity
In Japan, Pennsylvania, the average relative humidity in May is 81%.Rainfall
May is the month with the most rainfall. Rain falls for 19.4 days and accumulates 3.5" (89mm) of precipitation.Snowfall
Months with snowfall in Japan are January through May, October through December. May is the last month it regularly snows. During 0.3 snowfall days, in May, Japan aggregates 0.87" (22mm) of snow. In Japan, during the entire year, snow falls for 60.9 days and aggregates up to 38.9" (988mm) of snow.Daylight
In Japan, the average length of the day in May is 14h and 29min.On the first day of May in Japan, sunrise is at 6:00 am and sunset at 8:00 pm. On the last day of the month, sunrise is at 5:33 am and sunset at 8:29 pm EDT.
Sunshine
In Japan, the average sunshine in May is 7.6h.UV index
May through August, with an average maximum UV index of 5, are months with the highest UV index. A UV Index of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV rays for average individuals.Note: The maximum daily UV index of 5 in May converts into the following recommendations:
Take necessary precautions - Defending against sun damage is advocated. For health reasons, it's advisable to reduce direct sun exposure during peak hours around midday. Fend off the sun's harsh rays with appropriate clothing, a wide-brim hat, and UV-protective sunglasses. Take into account! The reflection from snow can nearly double the Sun's UV radiation intensity.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Japan, PA
- Average high temperature in May: 66.7°F
The warmest month (with the highest average high temperature) is July (80.2°F).
The month with the lowest average high temperature is January (30.6°F).
- Average low temperature in May: 48.4°F
The month with the highest average low temperature is July (60.3°F).
The coldest month (with the lowest average low temperature) is January (18.5°F).
Average pressure in May
Japan, 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
Japan, PA
- Average wind speed in May: 6.6mph
The windiest month (with the highest average wind speed) is March (8.5mph).
The calmest month (with the lowest average wind speed) is August (5.2mph).
Average humidity in May
Japan, PA
- Average humidity in May: 81%
The months with the highest relative humidity are February and December (84%).
The month with the lowest relative humidity is April (78%).
Average rainfall in May
Japan, PA
- Average rainfall in May: 3.5"
The wettest month (with the highest rainfall) is May (3.5").
The driest month (with the least rainfall) is September (2.13").
Average rainfall days in May
Japan, PA
- Average rainfall days in May: 19.4 days
The month with the highest number of rainy days is May (19.4 days).
The month with the least rainy days is January (7 days).
Average snowfall in May
Japan, PA
- Average snowfall in May: 0.87"
The month with the highest snowfall is February (8.62").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in May
Japan, PA
- Average snowfall days in May: 0.3 days
The month with the highest number of snowfall days is January (14.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in May /
Average sunshine in May
Japan, PA
- Average daylight in May: 14h and 30min
The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 18min).
- Average sunshine in May: 7h and 36min
The month with the most sunshine is July (Average sunshine: 9h and 48min).
The month with the least sunshine is February (Average sunshine: 3h and 36min).
Average sunshine days in May
Japan, PA
- Average sunshine days in May: 9.2 days
The month with the most sunshine days is November (15.6 days).
The month with the least sunshine days is May (9.2 days).
Average UV index in May
Japan, PA
- Average UV index in May: 5
The months with the highest UV index are May, June, July and August (UV index 5).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in May
Japan, PA
- Average cloud cover in May: 53
The months with the most cloud cover are February and December (Cloud cover 61).
The month with the least cloud cover is July (Cloud cover 38).
Average visibility in May
Japan, PA
- Average visibility in May: 5mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (5mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (5mi).
