Oklahoma, Pennsylvania has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from 37.2 °F (low) to 58.6 °F (high). Annual precipitation averages 44.3 Inches. Oklahoma is located in USDA Plant Hardiness Zone 6a. The growing season typically runs from the last frost around May 1 - May 10 through the first frost around Oct. 11 - Oct. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 20.2 °F | 36.9 °F | 3.24 in. |
| February | 21.2 °F | 40.0 °F | 2.56 in. |
| March | 28.3 °F | 49.0 °F | 3.23 in. |
| April | 38.4 °F | 62.4 °F | 3.65 in. |
| May | 49.2 °F | 72.3 °F | 4.08 in. |
| June | 57.7 °F | 79.9 °F | 4.52 in. |
| July | 61.7 °F | 83.6 °F | 4.68 in. |
| August | 60.2 °F | 82.5 °F | 4.14 in. |
| September | 53.3 °F | 76.1 °F | 3.97 in. |
| October | 42.0 °F | 64.0 °F | 3.15 in. |
| November | 32.6 °F | 51.7 °F | 3.22 in. |
| December | 25.8 °F | 41.3 °F | 3.16 in. |
| Annual | 40.9 °F | 61.6 °F | 43.6 in. |
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 16.7 °F | 33.3 °F | 3.29 in. |
| February | 17.5 °F | 36.4 °F | 2.49 in. |
| March | 24.4 °F | 45.3 °F | 3.36 in. |
| April | 34.5 °F | 59.7 °F | 3.8 in. |
| May | 44.7 °F | 70.1 °F | 3.97 in. |
| June | 53.7 °F | 77.1 °F | 4.57 in. |
| July | 57.8 °F | 80.9 °F | 4.38 in. |
| August | 56.2 °F | 79.7 °F | 4.03 in. |
| September | 49.5 °F | 73.0 °F | 3.99 in. |
| October | 38.5 °F | 61.1 °F | 3.45 in. |
| November | 29.8 °F | 48.4 °F | 3.46 in. |
| December | 22.9 °F | 37.7 °F | 3.51 in. |
| Annual | 37.2 °F | 58.6 °F | 44.3 in. |
| Average First Frost Date | Oct. 11 - Oct. 20 |
| Average Last Frost Date | May 1 - May 10 |
| Average Days With Frost | 125-150 Days |
| Plant Hardiness Zone | Zone 6b : -5°F to 0°F |
| Plant Hardiness Zone - 2012 | Zone 6a : -10°F to -5°F |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Dfa - Humid Continental Hot Summers With Year Around Precipitation |
| Average First Frost Date | Oct. 11 - Oct. 20 |
| Average Last Frost Date | May 1 - May 10 |
| Average Days With Frost | 125-150 Days |
| Plant Hardiness Zone | Zone 6a : -10°F to -5°F |
| Plant Hardiness Zone - 2012 | Zone 5b : -15°F to -10°F |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Dfb - Humid Continental Mild Summer, Wet All Year |