May weather forecast
York, PA

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This courthouse of the York County, Pennsylvania, stands tall in the bright evening sunlight rays
This courthouse of the York County, Pennsylvania, stands tall in the bright evening sunlight rays

Weather in May

May marks York’s full entry into spring, with an associated surge in temperature and abundant growth in the city's flora. As the days stretch further, sunshine access increases significantly, hinting at the upcoming summer solstice's longer days. A noteworthy rise in temperatures, culminating in a pleasant average high of 70.3°F (21.3°C), makes outdoor activities far more enticing. The rain also frequents the city more often, providing necessary hydration to the flourishing natural scenery. By the end of May, York's weather evolves to resemble the beginnings of June's summer-like conditions.

Temperature

The shift from April to May sees an increase in the average high-temperature, transitioning from a moderate 60.6°F (15.9°C) to an agreeable 70.3°F (21.3°C). Throughout May, York registers a consistent average low-temperature of 52.3°F (11.3°C).

Humidity

The months with the highest humidity are February, May and October, with an average relative humidity of 80%.

Rainfall

In May, the rain falls for 16 days. Throughout May, 1.89" (48mm) of precipitation is accumulated. Throughout the year, there are 134.1 rainfall days, and 17.83" (453mm) of precipitation is accumulated.

Snowfall

May through September are months without snowfall.

Daylight

In May, the average length of the day is 14h and 24min.
On the first day of the month, sunrise is at 6:05 am and sunset at 8:01 pm. On the last day of May, sunrise is at 5:40 am and sunset at 8:29 pm EDT.

Sunshine

In May, the average sunshine is 8.4h.

UV index

The months with the highest UV index are May through August, with an average maximum UV index of 6. A UV Index reading of 6 to 7 represents a high health risk from unprotected exposure to Sun's UV rays for the average person.
Note: The UV index of 6 during May leads to these advisories:
Escape overexposure. People with light skin may incur burns in fewer than 20 minutes. Avoid direct Sun exposure and seek shade from 10 a.m. to 4 p.m., the period of highest UV radiation. Remember, however, that not all shade structures offer full protection. It's wise to wear UVA and UVB-blocking sunglasses when the sun shines brightly. Observe! Snow reflection can nearly intensify the Sun's UV radiation twofold.

Frequently asked questions

What are the temperatures in May?

The average high-temperature, in May, in York, is 70.3°F (21.3°C), while the average low-temperature is 52.3°F (11.3°C).

What is the most humid month?

The months with the highest humidity are February, May and October, with an average relative humidity of 80%.

What is the average humidity in May?

In May, the average relative humidity is 80%.

How much does it rain in May?

In May, the rain falls for 16 days. Throughout May, 1.89" (48mm) of precipitation is accumulated.

When it does not snow?

May through September are months without snowfall.

Does it snow in May?

In May, it doesn't snow. April is the latest month when it typically snows.

What is the average length of the day in May?

In York, the average day length in May is 14h and 24min.

When is the sunrise / sunset in May in York?

In May, on the first day of the month, sunrise is at 6:05 am and sunset at 8:01 pm. On the last day of the month, sunrise is at 5:40 am and sunset at 8:29 pm EDT.

How many hours of sunshine does York have in May?

The average sunshine duration in May is 8.4h.

What are the months with the highest UV index?

May through August, with an average maximum UV index of 6, are months with the highest UV index in York.

What is the UV index reading in May?

In York, the average daily maximum UV index in May is 6. A UV Index value of 6 to 7 symbolizes a high health risk from unsafe exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in May
York, PA

Average temperature in May - York, PA
  • Average high temperature in May: 70.3°F

The warmest month (with the highest average high temperature) is July (83.3°F).
The month with the lowest average high temperature is January (35.4°F).

  • Average low temperature in May: 52.3°F

The month with the highest average low temperature is July (64.2°F).
The coldest month (with the lowest average low temperature) is January (22.6°F).

Average pressure in May
York, PA

Average pressure in May - York, PA
  • Average pressure in May: 30.01"Hg

The month with the highest atmospheric pressure is November (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).

Average wind speed in May
York, PA

Average wind speed in May - York, PA
  • Average wind speed in May: 6.7mph

The windiest month (with the highest average wind speed) is March (8.7mph).
The calmest month (with the lowest average wind speed) is August (5mph).

Average humidity in May
York, PA

Average humidity in May - York, PA
  • Average humidity in May: 80%

The months with the highest relative humidity are February, May and October (80%).
The months with the lowest relative humidity are March and April (76%).

Average rainfall in May
York, PA

Average rainfall in May - York, PA
  • Average rainfall in May: 1.89"

The wettest months (with the highest rainfall) are July and August (2.01").
The driest month (with the least rainfall) is January (1.06").

Average rainfall days in May
York, PA

Average rainfall days in May - York, PA
  • Average rainfall days in May: 16 days

The month with the highest number of rainy days is May (16 days).
The month with the least rainy days is January (6 days).

Average snowfall in May
York, PA

Average snowfall in May - York, PA
  • Average snowfall in May: 0"

The month with the highest snowfall is January (2.4").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in May
York, PA

Average snowfall days in May - York, PA
  • Average snowfall days in May: 0.1 days

The month with the highest number of snowfall days is January (6.8 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in May /
Average sunshine in May
York, PA

Average daylight in May / Average sunshine in May - York, 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 24min).

  • Average sunshine in May: 8h and 2min

The month with the most sunshine is July (Average sunshine: 10h and 36min).
The month with the least sunshine is February (Average sunshine: 4h and 36min).

Average sunshine days in May
York, PA

Average sunshine days in May - York, PA
  • Average sunshine days in May: 12.8 days

The month with the most sunshine days is November (20.1 days).
The month with the least sunshine days is May (12.8 days).

Average UV index in May
York, PA

Average UV index in May - York, PA
  • Average UV index in May: 6

The months with the highest UV index are May, June, July and August (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).

Average cloud cover in May
York, PA

Average cloud cover in May - York, PA
  • Average cloud cover in May: 46

The months with the most cloud cover are February and March (Cloud cover 49).
The month with the least cloud cover is July (Cloud cover 31).

Average visibility in May
York, PA

Average visibility in May - York, PA
  • Average visibility in May: 5mi

The months with the highest visibility are January, February, March, April, June, July, August, October, November and December (6mi).
The months with the lowest visibility are May and September (5mi).

York, Pennsylvania, USA

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