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
In May, the average high-temperature rises from a comfortable 61°F (16.1°C) in April to an agreeable 72.1°F (22.3°C). The average low-temperature, in Pittsburgh, Pennsylvania, is 51.4°F (10.8°C).Humidity
In May, the average relative humidity in Pittsburgh, Pennsylvania, is 76%.Rainfall
The month with the most rainfall is May, when the rain falls for 18.9 days and typically aggregates up to 3.07" (78mm) of precipitation.Snowfall
May through September are months without snowfall in Pittsburgh.Daylight
In May, the average length of the day in Pittsburgh, Pennsylvania, is 14h and 26min.On the first day of the month, sunrise is at 6:18 am and sunset at 8:15 pm. On the last day of May, sunrise is at 5:52 am and sunset at 8:43 pm EDT.
Sunshine
The average sunshine in May in Pittsburgh is 8.7h.UV index
May through July, with an average maximum UV index of 6, are months with the highest UV index in Pittsburgh. A UV Index value of 6 to 7 symbolizes a high threat to health from unprotected exposure to Sun's UV rays for average individuals.Note: In May, the average maximum UV index of 6 translate into the following recommendations:
Take precautions and adopt sun safety practices. Protection against sunburn is obliged. The Sun's UV radiation is most powerful between 10 a.m. and 4 p.m. To the extent possible, limit exposure to the direct sun during these hours. 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.
FAQ
What is the temperature in May in Pittsburgh?
What is the average humidity in May in Pittsburgh?
What is the wettest month in Pittsburgh?
How much does it rain in Pittsburgh in May?
When it does not snow in Pittsburgh?
Does it snow in Pittsburgh in May?
What is the average length of the day in May in Pittsburgh?
When are sunrise and sunset in May in Pittsburgh?
How long on average sun shines in May in Pittsburgh?
When is the highest UV index in Pittsburgh?
What is the UV index intensity in May in Pittsburgh?
Average temperature in May
Pittsburgh, PA
- Average high temperature in May: 72.1°F
The warmest month (with the highest average high temperature) is July (84°F).
The month with the lowest average high temperature is January (33.1°F).
- Average low temperature in May: 51.4°F
The month with the highest average low temperature is July (63°F).
The coldest month (with the lowest average low temperature) is January (21°F).
Average pressure in May
Pittsburgh, PA
- Average pressure in May: 30"Hg
The month with the highest atmospheric pressure is November (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.95"Hg).
Average wind speed in May
Pittsburgh, PA
- Average wind speed in May: 6.1mph
The windiest month (with the highest average wind speed) is January (8mph).
The calmest months (with the lowest average wind speed) are July and August (4.8mph).
Average humidity in May
Pittsburgh, PA
- Average humidity in May: 76%
The months with the highest relative humidity are January and February (84%).
The months with the lowest relative humidity are July and August (73%).
Average rainfall in May
Pittsburgh, PA
- Average rainfall in May: 3.07"
The wettest month (with the highest rainfall) is May (3.07").
The driest month (with the least rainfall) is November (1.54").
Average rainfall days in May
Pittsburgh, PA
- Average rainfall days in May: 18.9 days
The month with the highest number of rainy days is May (18.9 days).
The month with the least rainy days is January (8.9 days).
Average snowfall in May
Pittsburgh, PA
- Average snowfall in May: 0"
The month with the highest snowfall is January (3.31").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in May
Pittsburgh, PA
- Average snowfall days in May: 0 days
The month with the highest number of snowfall days is January (14.4 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight in May /
Average sunshine in May
Pittsburgh, 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 18min).
- Average sunshine in May: 8h and 4min
The month with the most sunshine is August (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 2h and 48min).
Average sunshine days in May
Pittsburgh, PA
- Average sunshine days in May: 9.8 days
The month with the most sunshine days is November (16.5 days).
The month with the least sunshine days is February (9.6 days).
Average UV index in May
Pittsburgh, PA
- Average UV index in May: 6
The months with the highest UV index are May, June and July (UV index 6).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in May
Pittsburgh, PA
- Average cloud cover in May: 45
The month with the most cloud cover is January (Cloud cover 70).
The month with the least cloud cover is August (Cloud cover 34).
Average visibility in May
Pittsburgh, PA
- Average visibility in May: 5mi
The months with the highest visibility are April, June, July, August and November (6mi).
The months with the lowest visibility are January, February, March, May, September, October and December (5mi).
Weather forecast for your location
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