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Weather in May in Pennsylvania

Thinking about venturing to Pennsylvania this May and curious about the weather conditions to expect? This page holds all the key information you seek, responding to your question:

What is the weather like in Pennsylvania in May?

Pennsylvania is a region in the United States of America. May in Pennsylvania generally has temperatures that range from pleasant to warm, with precipitation levels ranging from moderate to high.

Temperatures

During the day the temperature is pleasant in Erie at 19°C and warm in Philadelphia at 24°C. As night falls, temperatures generally drop to 14°C in Philadelphia and 10°C in Erie.

Precipitation

In May, precipitation varies across different areas. From moderate rainfall in Moosic with an average of 77 mm to high rainfall in Somerset with 126 mm.

Average sunshine

The days are mostly sunny, with an average total of around 247 hours of sunshine in Philadelphia. The sunlight during this month doesn't just make the days brighter, it also seems to make everyone a bit more cheerful.

To learn more about the conditions in specific areas of Pennsylvania in May, check out the map below. For more details on the yearly weather, visit our Pennsylvania climate page.

Where to go in Pennsylvania in May

Find more information for the most popular destinations in the Pennsylvania on the map below. Click on a destination dot for more detailes.

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Legend perfect weather pleasant tolerable unpleasant poor
Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C and 29°C and not too much precipitation (less than 90 mm a month).

Popular destinations

What is the weather like in May for the 5 most popular destinations in Pennsylvania?

Philadelphia

In May Philadelphia generally has high temperatures with maximum daytime temperatures around 24°C, minimum nighttime temperatures around 14°C and moderate monthly rainfall. So on average the conditions are perfect that month.

Philadelphia
minimum temparatureMax temperature minimum temparatureMax temp
maximum temparatureMin temperature maximum temparatureMin temp
sun hoursMonthly sun hours sun hoursSun hours
precipitationMonthly rainfall precipitationRainfall
rain daysMonthly rainy days rain daysRainy days
conditionsWeather conditions conditionsWeather
<<   April April
<<  
19°C 
8°C 
219 hours 
103 mm 
12 days 
24°C 
14°C 
247 hours 
92 mm 
12 days 
June   >> June
>>  
29°C 
19°C 
272 hours 
127 mm 
12 days 
Climate in Philadelphia

Pittsburgh

In May Pittsburgh generally has high temperatures with maximum daytime temperatures around 22°C, minimum nighttime temperatures around 11°C and moderate monthly rainfall. So on average the conditions are perfect that month.

Pittsburgh
minimum temparatureMax temperature minimum temparatureMax temp
maximum temparatureMin temperature maximum temparatureMin temp
sun hoursMonthly sun hours sun hoursSun hours
precipitationMonthly rainfall precipitationRainfall
rain daysMonthly rainy days rain daysRainy days
conditionsWeather conditions conditionsWeather
<<   April April
<<  
17°C 
5°C 
183 hours 
78 mm 
14 days 
22°C 
11°C 
217 hours 
93 mm 
14 days 
June   >> June
>>  
26°C 
15°C 
244 hours 
116 mm 
15 days 
Climate in Pittsburgh

Gettysburg

In May Gettysburg generally has high temperatures with maximum daytime temperatures around 23°C, minimum nighttime temperatures around 10°C and high monthly rainfall. So on average the conditions are pleasant that month.

Gettysburg
minimum temparatureMax temperature minimum temparatureMax temp
maximum temparatureMin temperature maximum temparatureMin temp
sun hoursMonthly sun hours sun hoursSun hours
precipitationMonthly rainfall precipitationRainfall
rain daysMonthly rainy days rain daysRainy days
conditionsWeather conditions conditionsWeather
<<   April April
<<  
17°C 
5°C 
235 hours 
97 mm 
12 days 
23°C 
10°C 
266 hours 
109 mm 
15 days 
June   >> June
>>  
28°C 
16°C 
288 hours 
115 mm 
13 days 
Climate in Gettysburg

York

In May York generally has high temperatures with maximum daytime temperatures around 24°C, minimum nighttime temperatures around 11°C and high monthly rainfall. So on average the conditions are pleasant that month.

York
minimum temparatureMax temperature minimum temparatureMax temp
maximum temparatureMin temperature maximum temparatureMin temp
sun hoursMonthly sun hours sun hoursSun hours
precipitationMonthly rainfall precipitationRainfall
rain daysMonthly rainy days rain daysRainy days
conditionsWeather conditions conditionsWeather
<<   April April
<<  
19°C 
5°C 
235 hours 
93 mm 
11 days 
24°C 
11°C 
266 hours 
107 mm 
13 days 
June   >> June
>>  
28°C 
16°C 
288 hours 
109 mm 
13 days 
Climate in York

Washington

In May Washington generally has high temperatures with maximum daytime temperatures around 22°C, minimum nighttime temperatures around 9°C and moderate monthly rainfall. So on average the conditions are perfect that month.

Washington
minimum temparatureMax temperature minimum temparatureMax temp
maximum temparatureMin temperature maximum temparatureMin temp
sun hoursMonthly sun hours sun hoursSun hours
precipitationMonthly rainfall precipitationRainfall
rain daysMonthly rainy days rain daysRainy days
conditionsWeather conditions conditionsWeather
<<   April April
<<  
17°C 
4°C 
183 hours 
73 mm 
13 days 
22°C 
9°C 
217 hours 
98 mm 
15 days 
June   >> June
>>  
26°C 
14°C 
244 hours 
114 mm 
15 days 
Climate in Washington

Is your destination not in the list? Have a look at other destinations in Pennsylvania, in the United States of America.

Is May the best time to visit Pennsylvania?

We consider May to be one of the best times to travel to Pennsylvania. Typically, the climate in Philadelphia is perfect. However, the weather conditions may vary depending on your destination.

Generally speaking, the best visiting conditions can be found in May offering mostly perfect weather in Philadelphia. On the other hand, the months of January, February and December tend to have poor weather conditions.

Interested in more climate information?

We have much more information about the climate in Pennsylvania. Interested in the weather conditions in a specific month? Select the month below.

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  • Weather and climate has detailed information for every country in the world. Are you going to the United States of America? Get detailed historical weather averages for many cities in the United States of America.

    Not sure yet where to go? We now have a tool which recommends destinations that suit your ideal travel conditions. Find out where to go with our weather planner.