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Monthly climate in Gettysburg, Ohio, United States

Last updated: March 2, 2024

Under the Köppen–Geiger climate classification Gettysburg features a humid subtropical climate (Cfa). Temperatures typically range between -1 °C (30 °F) and 24 °C (76 °F) through the year, but rarely can drop to -25 °C (-13 °F) or can rise to as high as 34 °C (93 °F). The average annual precipitation amounts to about 1212 mm (47.7 inches) and receives 135 rainy days on the 1 mm (0.04 inches) threshold annually. Gettysburg enjoys an average of 2852 hours of sunshine throughout the year, and daylight varies from 9 hours 22 minutes to 14 hours 56 minutes per day.

Monthly average temperatures in Gettysburg, Ohio, United States §

The warmest months in Gettysburg are June, July and August, with daily mean temperatures ranging from 22 to 24 °C (72 - 76 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from -1 to 2 °C (30 - 36 °F) throughout the day. On average each year, Gettysburg experiences 95 days above 25 °C (77.0 °F) and 91 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Gettysburg, Ohio, United States. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to June 2022.
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Maximum 19°C
(66°F)		 24°C
(75°F)		 24°C
(75°F)		 29°C
(84°F)		 33°C
(91°F)		 33°C
(92°F)		 33°C
(92°F)		 32°C
(91°F)		 34°C
(93°F)		 33°C
(92°F)		 25°C
(78°F)		 18°C
(65°F)
Mean maximum 15°C
(59°F)		 18°C
(64°F)		 21°C
(70°F)		 27°C
(80°F)		 30°C
(87°F)		 32°C
(90°F)		 32°C
(90°F)		 32°C
(89°F)		 32°C
(90°F)		 29°C
(84°F)		 20°C
(68°F)		 16°C
(62°F)
Average high 3°C
(37°F)		 5°C
(41°F)		 11°C
(51°F)		 16°C
(61°F)		 22°C
(73°F)		 27°C
(80°F)		 29°C
(84°F)		 28°C
(82°F)		 26°C
(79°F)		 19°C
(67°F)		 10°C
(50°F)		 6°C
(43°F)
Daily mean -1°C
(30°F)		 1°C
(33°F)		 6°C
(42°F)		 11°C
(52°F)		 17°C
(64°F)		 22°C
(72°F)		 24°C
(76°F)		 23°C
(73°F)		 20°C
(69°F)		 14°C
(57°F)		 5°C
(42°F)		 2°C
(36°F)
Average low -5°C
(24°F)		 -3°C
(26°F)		 1°C
(34°F)		 6°C
(43°F)		 13°C
(55°F)		 17°C
(64°F)		 20°C
(68°F)		 18°C
(65°F)		 15°C
(60°F)		 9°C
(49°F)		 1°C
(34°F)		 -2°C
(29°F)
Mean minimum -18°C
(1°F)		 -14°C
(7°F)		 -9°C
(16°F)		 -4°C
(25°F)		 3°C
(37°F)		 11°C
(52°F)		 14°C
(58°F)		 12°C
(54°F)		 8°C
(47°F)		 0°C
(32°F)		 -8°C
(18°F)		 -12°C
(10°F)
Minimum -25°C
(-13°F)		 -21°C
(-5°F)		 -14°C
(7°F)		 -6°C
(21°F)		 -1°C
(30°F)		 7°C
(45°F)		 12°C
(54°F)		 11°C
(52°F)		 5°C
(41°F)		 -2°C
(29°F)		 -15°C
(6°F)		 -18°C
(-1°F)

Compare climate in Gettysburg with other places

Compare temperature, precipitation, sunshine, UV index in Gettysburg, Ohio, United States with other places around the world.

Monthly average precipitation in Gettysburg, Ohio, United States §

Gettysburg usually has the most precipitation in March, May and June, with an average of 13 rainy days and 125 mm (4.9 inches) of precipitation per month. The driest months in Gettysburg are January, September and December. On average, 81 mm (3.2 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Gettysburg, Ohio, United States. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to January 2022.
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Average precipitation mm (inches) 72 (2.8) 97 (3.8) 112 (4.4) 100 (3.9) 137 (5.4) 127 (5.0) 107 (4.2) 99 (3.9) 87 (3.4) 98 (3.9) 94 (3.7) 84 (3.3)
Average precipitation days (≥ 1 mm) 8 12 12 12 15 13 13 13 7 12 8 10

Monthly sunshine hours in Gettysburg, Ohio, United States §

The sunniest months in Gettysburg are June, July and August, when the sun shines an average of 10 hours 46 minutes a day. Least sunny months in Gettysburg: January, February and December receive an average of 4 hours 41 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Gettysburg, Ohio, United States. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2017 to January 2022.
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Mean monthly sunshine hours 113 156 221 229 279 321 349 320 283 229 189 157
Mean daily daylight hours 9h 41m 10h 41m 11h 58m 13h 17m 14h 23m 14h 56m 14h 38m 13h 39m 12h 23m 11h 5m 9h 57m 9h 22m

Solar UV radiation in Gettysburg, Ohio, United States §

Gettysburg experiences the highest level of ultraviolet (UV) radiation in May, June and July, when the maximum UV index can reach values of 10 - 10, which corresponds to the Very High category of sun exposure. January, November and December are in the Moderate exposure category. In these months, the maximum values of the UV index do not exceed 4. For more detailed information, check out our hourly Gettysburg UV Index data.

Average daily maximum UV levels by month for Gettysburg, Ohio, United States. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2022 to January 2023.
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
UV Index (month maximum) 3 5 6 9 10 10 10 9 8 6 4 3

Detailed Monthly Weather Insights for Gettysburg, Ohio, United States

Discover in-depth weather details for every month in Gettysburg. Click through the links below for comprehensive overviews of temperature trends, precipitation levels, sunshine hours, and solar UV radiation specifics. Whether planning a visit or simply curious about Gettysburg's climate nuances, these monthly breakdowns provide the information you need for an informed understanding of what to expect throughout the year.

Each link leads to a detailed account of the typical weather conditions for that month, providing both locals and tourists with vital information to plan their daily activities, wardrobe, and travel itineraries accordingly.