Weather & Climate at Letterkenny Army Depot

Chambersburg, PA

Summary of the weather and climate in Chambersburg, PA:

The average high is 61.9°F and the average low is 43.1°F.
The hottest month is July with a high of 84.8°F.
The coldest month is January with a low of 22.5°F.
Annual rainfall is 41.69 inches; the rainiest month is May (4.19 in).
Annual snowfall is 31.1 inches; the snowiest month is January (10.2 in).

Source: NOAA climate normals.

Temperatures through the year

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

Bars span each month's average low to average high (20°F – 90°F scale).

Month	High (°F)	Low (°F)	Rain (in)	Snow (in)
January	36.8	22.5	3.01	10.2
February	40.5	24.7	2.68	8.7
March	50.4	31.5	3.52	4.9
April	62.8	41.2	3.73	0.6
May	72.2	50.6	4.19	0
June	80.8	60.2	3.78	0
July	84.8	64.2	3.81	0
August	82.9	62.6	3.52	0
September	75.2	54.8	3.6	0
October	63.8	43.4	3.21	0
November	52.3	35	3.43	1.2
December	40.5	26.4	3.21	5.5