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Gettysburg (PA) Weather and Climate: A Comprehensive Guide

The temperature in Gettysburg can vary quite a bit throughout the year. Temperatures can be very warm during the warmest months, and cold during the cooler months. It is also known for its large amounts of rain/snowfall. Let’s explore the climate details in depth to provide you with a complete overview.

Average maximum day and minimum night temperature

Visitors to Gettysburg can expect significant temperature changes throughout the year. Typically, average maximum daytime temperatures range from a very warm 30°C in July to a chilly 4°C in the coolest month, February.

Nights are cooler, with lows often dropping to around -6°C during the colder months. Check out our detailed temperature page for more information.

Temperature ranges by month

Precipitation and rainy days

Gettysburg is known for its substantial rain/snowfall, with annual precipitation reaching 1141 mm. Gettysburg offers a pleasant mix of wetter and slightly drier months. The difference in precipitation between October (125 mm) and November (70 mm) is not too significant, making the climate enjoyable for visitors and residents alike.

The mean monthly precipitation over the year, including rain, hail and snow

Sunshine over the year

For those who appreciate different seasons, Gettysburg serves as an ideal destination. Expect longer, more sun-filled days in July with an average of 10.3 hours of sunshine daily, and embrace the darker days in December, offering only 4.2 hours of daily sunlight. Visit our detailed sunshine hours page for more information.

Monthly hours of sunshine

Data from: Harrisburg, the United States of America (56 KM, 35 Miles).

Daily hours of sunshine

Data from: Harrisburg, the United States of America (56 KM, 35 Miles).

Forecast for Gettysburg (PA)

Sun   Dec 22
-2°C | -9°C
N 4 m/s
clear and no rain

clear and no rain

Mon   Dec 23
0°C | -9°C
S 4 m/s
partly cloudy and no rain

partly cloudy and no rain

Tue   Dec 24
5°C | -3°C
W 4 m/s
overcast and no rain

overcast and no rain

The best time of year to visit Gettysburg in the United States of America

During the months of May and September you are most likely to experience good weather with pleasant average temperatures that fall between 20°C and 26°C.

Other facts from our historical weather data:
  • When is summer in Gettysburg?
    The hottest season / summer takes place in June, July, August and September.
  • Which is the warmest month in Gettysburg?
    July has an average maximum temperature of 30°C and is the warmest month of the year.
  • Which is the coldest month in Gettysburg?
    The coldest month is February with an average maximum temperature of 4°C.
  • Which is the wettest month in Gettysburg?
    October tops the wettest month list with 125 mm of rainfall.
  • Which is the driest month in Gettysburg?
    November is the driest month with 70 mm of precipitation.
  • Which is the sunniest month in Gettysburg?
    July is the sunniest month with an average of 310 hours of sunshine.

  • No idea where to travel to this year? We have a tool that recommends destinations based on your ideal conditions. Find out where to go with our weather planner.