Gettysburg Weather in May

What's the weather like in Gettysburg (South Dakota) in May 2025?

The climate in Gettysburg during May can be summarized as mild and reasonably dry.

May is in the spring in Gettysburg and is typically the 5th warmest month of the year. Daytime maximum temperatures average around 21°C (70°F), whilst at night 6°C (44°F) is normal.

Gettysburg weather averages (imperial / metric)
Daytime temperature 21°C 69.8°F
Nightly temperature 6.4°C 43.5°F
Average temperature 13.7°C 56.7°F
Daily sunshine 10.2 hrs
Avg rainfall 67 mm 2.6 ins
Rainy days 10 days
Sea temperature 9.4°C 48.9°F
Humidity 61%
Windspeed 20.2kph 13 mph

On average May is the 2nd wettest month of the year in Gettysburg with around 67mm 2.6 inches of rain making it a reasonably dry time to visit. This rainfall is typically spread over 10 days, although this may vary considerably.

On the flip side this corresponds to an average of 10.2 hours of sunshine per day.

May temperatures in Gettysburg

Gettysburg average temperature in May

May rainfall

Gettysburg average rain in May

May hourly sunshine

Gettysburg average rain in May

The data used in these monthly averages covers a period of over 100 years right up until last year. As such they are a valid prediction of what to expect for the weather in Gettysburg in May 2024.