US Geography / US Weather / Pennsylvania Weather / Carnegie |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
| Avg. High | 34 | 36 | 48 | 60 | 70 | 78 | 82 | 80 | 74 | 62 | 50 | 38 |
| Avg. Low | 18 | 20 | 28 | 38 | 48 | 56 | 61 | 60 | 54 | 42 | 34 | 24 |
| Mean | 26 | 28 | 38 | 50 | 60 | 68 | 72 | 71 | 64 | 52 | 42 | 32 |
| Avg. Precip. | 2.5 in | 2.4 in | 3.4 in | 3.3 in | 3.6 in | 3.7 in | 3.8 in | 3.3 in | 3.0 in | 2.4 in | 2.9 in | 2.9 in |
Degrees in Fahrenheit
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