Riceville, Pennsylvania has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from 2.9 °C (low) to 14.2 °C (high). Annual precipitation averages 1227.8 Millimeters. Riceville is located in USDA Plant Hardiness Zone 6a. The growing season typically runs from the last frost around May 11 - May 20 through the first frost around Oct. 1 - Oct. 10.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -8.7 °C | 0.3 °C | 96.01 mm |
| February | -8.6 °C | 1.6 °C | 69.85 mm |
| March | -4.6 °C | 6.5 °C | 88.65 mm |
| April | 1.2 °C | 14.1 °C | 105.16 mm |
| May | 7.1 °C | 20.4 °C | 106.93 mm |
| June | 12.1 °C | 24.7 °C | 122.43 mm |
| July | 14.2 °C | 26.8 °C | 119.38 mm |
| August | 13.6 °C | 26.2 °C | 98.04 mm |
| September | 9.8 °C | 22.6 °C | 108.97 mm |
| October | 4.1 °C | 15.9 °C | 112.27 mm |
| November | -0.6 °C | 8.8 °C | 97.79 mm |
| December | -4.9 °C | 2.7 °C | 102.36 mm |
| Annual | 2.9 °C | 14.2 °C | 1227.84 mm |
| Average First Frost Date | Oct. 1 - Oct. 10 |
| Average Last Frost Date | May 11 - May 20 |
| Average Days With Frost | 125-150 Days |
| Plant Hardiness Zone | Zone 6a : -23.3°C to -20.6°C |
| Plant Hardiness Zone - 2012 | Zone 5b : -26.1°C to -23.3°C |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Dfb - Humid Continental Mild Summer, Wet All Year |