| Month | Average (°F) | Record (°F) | Average (inches) | |||
|---|---|---|---|---|---|---|
| High ☀️ | Low 🌙 | High ☀️ | Low 🌙 | Precipitation 💧 | Snow ❄️ | |
| January | 38.4 | 23.0 | 73 | -22 | 3.0 | 9.0 |
| February | 41.7 | 24.7 | 79 | -13 | 2.6 | 9.1 |
| March | 51.0 | 32.4 | 87 | -1 | 3.7 | 5.6 |
| April | 63.6 | 42.5 | 93 | 11 | 3.5 | 0.4 |
| May | 73.4 | 53.1 | 97 | 30 | 3.8 | 0.0 |
| June | 82.1 | 62.7 | 100 | 40 | 4.0 | 0.0 |
| July | 86.7 | 67.7 | 107 | 49 | 4.7 | 0.0 |
| August | 84.4 | 65.8 | 104 | 45 | 3.8 | 0.0 |
| September | 77.3 | 58.2 | 102 | 30 | 4.8 | 0.0 |
| October | 65.5 | 46.1 | 97 | 23 | 3.8 | 0.2 |
| November | 53.7 | 35.8 | 84 | 10 | 3.0 | 0.8 |
| December | 43.0 | 28.2 | 75 | -8 | 3.4 | 4.6 |
| Entire year | 63.5 | 45.1 | 107 | -22 | 44.2 | 29.8 |
|
More Harrisburg Weather Records
1888–2024
|
||
|---|---|---|
| Highest daily low | 83 °F | August 9, 1900 |
| Lowest daily high | -1 °F | January 19, 1994 |
| Greatest daily range (Difference of high and low) |
48 °F | March 28, 1921 |
| Greatest difference in daily high over two conscutive days |
41 °F | Jan 9–10, 1978 |
| Most daily precipitation | 9.1 inches | June 22, 1972 |
| Most monthly precipitation | 18.6 inches | June 1972 |
| Most yearly precipitation | 73.7 inches | 2011 |
| Most yearly days with precipitation | 161 | 1889 |
| Earliest snow in season | July 9 | 1930 |
| Latest snow in season | June 7 | 1931 |
| Most daily snow | 26.4 inches | January 23, 2016 |
| Most monthly snow | 42.1 inches | February 2010 |
| Most yearly snow | 81.7 inches | 1961 |
| Most snow in a winter | 81.3 inches | 1960–1961 |
| Greatest snow accumulation | 32.0 inches | January 13, 1996 |
| Earliest freeze | September 24 | 1963 |
| Earliest day ≥ 80 °F | March 8 | 2000 |
| Earliest day ≥ 90 °F | April 17 | 2002 |
| Earliest day ≥ 100 °F | June 26 | 1952 |
| Latest freeze | May 11 | 1966 |
| Latest day ≥ 80 °F | November 2 | 1982 |
| Latest day ≥ 90 °F | October 7 | 1941 |
| Latest day ≥ 100 °F | September 3 | 1953 |
| Most days in a year < 0 °F | 6 | 1994 |
| Most days in a year < 32 °F | 122 | 1904 |
| Most days in a year ≥ 80 °F | 117 | 2007 |
| Most days in a year ≥ 90 °F | 60 | 1966 |
| Most days in a year ≥ 100 °F | 6 | 1999 |
|
Harrisburg Weather Streaks
Most consecutive days...
|
||
|---|---|---|
| With precipitation | 9 days | Jul 28 – Aug 5, 1971 |
| Without precipitation | 35 days | Sep 23 – Oct 27, 1947 |
| With snow | 6 days | Jan 23–28, 2004 |
| High temperature at or below freezing |
20 days | Jan 3–22, 1893 |
| High temperature ≥ 80 °F | 72 days | Jul 5 – Sep 14, 2016 |
| High temperature ≥ 90 °F | 11 days | Jul 22 – Aug 1, 1999 |
| High temperature ≥ 100 °F | 3 days | Jul 16–18, 1999 |