May weather forecastCassandra, PA
May
Weather in May
The last month of the spring, May, is a comfortable month in Cassandra, Pennsylvania, with an average temperature fluctuating between 48.7°F (9.3°C) and 67.8°F (19.9°C).Temperature
With the onset of May, Cassandra's weather sees a temperature rise, transitioning from a refreshing 56.8°F (13.8°C) in April to an enjoyable 67.8°F (19.9°C). In May, the nighttime temperature lowers to an average of 48.7°F (9.3°C).Humidity
The average relative humidity in May is 80%.Rainfall
The month with the most rainfall is May, when the rain falls for 19.5 days and typically aggregates up to 3.23" (82mm) of precipitation.Snowfall
Months with snowfall in Cassandra are January through May, October through December. May is the last month it regularly snows. During 0.6 snowfall days, in May, Cassandra aggregates 0.16" (4mm) of snow. In Cassandra, during the entire year, snow falls for 51.3 days and aggregates up to 23.54" (598mm) of snow.Daylight
In Cassandra, the average length of the day in May is 14h and 26min.On the first day of May, sunrise is at 6:12 am and sunset at 8:10 pm. On the last day of the month, sunrise is at 5:46 am and sunset at 8:38 pm EDT.
Sunshine
In Cassandra, the average sunshine in May is 8.4h.UV index
The months with the highest UV index are May through August, with an average maximum UV index of 5. A UV Index value of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV rays for ordinary individuals.Note: In May, the maximum UV index of 5 translates into these guidelines:
Take precautions - Protection against sun damage is advised. Being in direct Sun during midday can be harmful due to intense solar radiation; take precautions. Fend off the sun's harsh rays with appropriate clothing, a wide-brim hat, and UV-protective sunglasses. Forewarned is forearmed! The Sun's UV radiation can be almost doubled in intensity by snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Cassandra, PA
- Average high temperature in May: 67.8°F
The warmest month (with the highest average high temperature) is July (79.9°F).
The month with the lowest average high temperature is January (30.6°F).
- Average low temperature in May: 48.7°F
The month with the highest average low temperature is July (59.5°F).
The coldest month (with the lowest average low temperature) is January (18.9°F).
Average pressure in May
Cassandra, 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
Cassandra, PA
- Average wind speed in May: 7mph
The windiest month (with the highest average wind speed) is January (10mph).
The calmest month (with the lowest average wind speed) is August (5.2mph).
Average humidity in May
Cassandra, PA
- Average humidity in May: 80%
The month with the highest relative humidity is February (86%).
The months with the lowest relative humidity are April and July (78%).
Average rainfall in May
Cassandra, PA
- Average rainfall in May: 3.23"
The wettest month (with the highest rainfall) is May (3.23").
The driest month (with the least rainfall) is November (1.61").
Average rainfall days in May
Cassandra, PA
- Average rainfall days in May: 19.5 days
The month with the highest number of rainy days is May (19.5 days).
The month with the least rainy days is December (8.8 days).
Average snowfall in May
Cassandra, PA
- Average snowfall in May: 0.16"
The month with the highest snowfall is January (6.34").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in May
Cassandra, PA
- Average snowfall days in May: 0.6 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
Cassandra, 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 18min).
- Average sunshine in May: 8h and 24min
The month with the most sunshine is August (Average sunshine: 9h and 48min).
The month with the least sunshine is January (Average sunshine: 3h and 18min).
Average sunshine days in May
Cassandra, PA
- Average sunshine days in May: 9.7 days
The month with the most sunshine days is November (16.8 days).
The month with the least sunshine days is May (9.7 days).
Average UV index in May
Cassandra, 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
Cassandra, PA
- Average cloud cover in May: 49
The month with the most cloud cover is January (Cloud cover 69).
The months with the least cloud cover are July and August (Cloud cover 39).
Average visibility in May
Cassandra, PA
- Average visibility in May: 5mi
The month with the highest visibility is April (6mi).
The months with the lowest visibility are January, February, March, May, June, July, August, September, October, November and December (5mi).
