May weather forecast
Gettysburg, PA

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The iconic and unifying Pennsylvania monument in a vast green field with neat grounds and green trees in the city of Gettysburg, Pennsylvania
The iconic and unifying Pennsylvania monument in a vast green field with neat grounds and green trees in the city of Gettysburg, Pennsylvania

Weather in May

May in Gettysburg signifies the official start of the warm season with temperatures increasing significantly to fall between 52.2°F (11.2°C) and 71.1°F (21.7°C), contributing to the bloom of flora throughout the city. Changes in atmospheric pressure and temperature trends bring about regular rain showers, rendering it the wettest month with expected rainfall reaching 1.34" (34mm). The longer daylight hours combined with increased relative humidity make for pleasant, vibrant days. May’s higher UV index calls for added sun protection during outdoor activities.

Temperature

The beginning of May in Gettysburg, Pennsylvania, signals a rise in the average high-temperature, moving from a comfortable 61°F (16.1°C) in April to an agreeable 71.1°F (21.7°C). Gettysburg, during the nights of May, experiences an average temperature drop to a fresh 52.2°F (11.2°C).

Humidity

With an average relative humidity of 80%, May is the most humid month.

Rainfall

In Gettysburg, in May, it is raining for 14.8 days, with typically 1.34" (34mm) of accumulated precipitation. Throughout the year, there are 125 rainfall days, and 12.13" (308mm) of precipitation is accumulated.

Snowfall

May through September are months without snowfall in Gettysburg.

Daylight

In May, the average length of the day in Gettysburg, Pennsylvania, is 14h and 23min.
On the first day of the month, sunrise is at 6:08 am and sunset at 8:03 pm. On the last day of May, sunrise is at 5:42 am and sunset at 8:30 pm EDT.

Sunshine

In Gettysburg, the average sunshine in May is 8.5h.

UV index

May through July, with an average maximum UV index of 6, are months with the highest UV index. A UV Index reading of 6 to 7 represents a high threat to health from unsafe exposure to UV radiation for the average person.
Note: A maximum UV index of 6 in May translates into the following recommendations:
Avoid overexposure. Fair-skinned individuals can burn in under 20 minutes. Avoid direct exposure to the Sun between 10 a.m. and 4 p.m., the peak period for UV radiation, noting that objects like parasols or canopies might not offer complete sun protection. Outfit yourself in sun-safe attire, like long sleeves, pants, a hat, and UV-blocking sunglasses. Bear in mind! The Sun's UV radiation can nearly double in intensity due to the reflective quality of snow.
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Frequently asked questions

What is the usual temperature for Gettysburg in May?

The average high-temperature and low-temperature in Gettysburg, Pennsylvania, during May are 71.1°F (21.7°C) and 52.2°F (11.2°C) respectively.

What is the most humid month in Gettysburg?

The most humid month is May, with an average relative humidity of 80%.

What is the average humidity in May in Gettysburg?

The average relative humidity in May in Gettysburg, Pennsylvania, is 80%.

How many days does it rain in May in Gettysburg?

In Gettysburg, Pennsylvania, in May, during 14.8 rainfall days, 1.34" (34mm) of precipitation is typically accumulated.

When it does not snow in Gettysburg?

In Gettysburg, Pennsylvania, snow does not fall in May through September.

Does it snow in Gettysburg in May?

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

How many hours of daylight does Gettysburg have in May?

In May, the average day length in Gettysburg, Pennsylvania, is 14h and 23min.

What time are sunrise and sunset in May in Gettysburg?

In May, on the first day of the month, sunrise is at 6:08 am and sunset at 8:03 pm. On the last day of the month, in Gettysburg, Pennsylvania, sunrise is at 5:42 am and sunset at 8:30 pm EDT.

How long on average sun shines in May in Gettysburg?

In Gettysburg, the average sunshine duration in May is 8.5h.

What is the month with the highest UV index in Gettysburg?

The months with the highest UV index in Gettysburg, Pennsylvania, are May through July, with an average maximum UV index of 6.

How high is the UV index in May in Gettysburg?

In Gettysburg, the average daily maximum UV index in May is 6. A UV Index reading of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV radiation.
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
Gettysburg, PA

Average temperature in May - Gettysburg, PA
  • Average high temperature in May: 71.1°F

The warmest month (with the highest average high temperature) is July (84°F).
The month with the lowest average high temperature is January (35.6°F).

  • Average low temperature in May: 52.2°F

The month with the highest average low temperature is July (64°F).
The coldest month (with the lowest average low temperature) is January (22.6°F).

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Average pressure in May
Gettysburg, PA

Average pressure in May - Gettysburg, PA
  • Average pressure in May: 30.01"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).

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Average wind speed in May
Gettysburg, PA

Average wind speed in May - Gettysburg, PA
  • Average wind speed in May: 6.3mph

The windiest months (with the highest average wind speed) are January, February and March (8.1mph).
The calmest month (with the lowest average wind speed) is August (4.8mph).

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Average humidity in May
Gettysburg, PA

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

The month with the highest relative humidity is May (80%).
The months with the lowest relative humidity are April and July (75%).

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Average rainfall in May
Gettysburg, PA

Average rainfall in May - Gettysburg, PA
  • Average rainfall in May: 1.34"

The wettest month (with the highest rainfall) is July (1.46").
The driest months (with the least rainfall) are January and February (0.71").

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Average rainfall days in May
Gettysburg, PA

Average rainfall days in May - Gettysburg, PA
  • Average rainfall days in May: 14.8 days

The month with the highest number of rainy days is May (14.8 days).
The month with the least rainy days is January (5 days).

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Average snowfall in May
Gettysburg, PA

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

The month with the highest snowfall is March (1.3").
The months with the least snowfall are May, June, July, August and September (0").

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Average snowfall days in May
Gettysburg, PA

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

The month with the highest number of snowfall days is February (6.4 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

Average daylight in May / Average sunshine in May - Gettysburg, PA
  • Average daylight in May: 14h and 2min

The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 24min).

  • Average sunshine in May: 8h and 3min

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).

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Average sunshine days in May
Gettysburg, PA

Average sunshine days in May - Gettysburg, PA
  • Average sunshine days in May: 13.7 days

The month with the most sunshine days is November (21.6 days).
The month with the least sunshine days is August (13.6 days).

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Average UV index in May
Gettysburg, PA

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

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

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Average cloud cover in May
Gettysburg, PA

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

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

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Average visibility in May
Gettysburg, PA

Average visibility in May - Gettysburg, 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).

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Gettysburg, Pennsylvania, USA

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