Norway, Maine has a Subarctic With Cool Summers And Year Around Rainfall climate (Köppen classification: Dfc). Average annual temperatures range from 35 °F (low) to 55.1 °F (high). Annual precipitation averages 48.5 Inches. Norway is located in USDA Plant Hardiness Zone 5b. 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 | 9.3 °F | 28.6 °F | 3.35 in. |
| February | 10.9 °F | 31.6 °F | 3.19 in. |
| March | 20.8 °F | 40.4 °F | 3.71 in. |
| April | 32.5 °F | 53.2 °F | 4.18 in. |
| May | 43.6 °F | 65.7 °F | 3.72 in. |
| June | 53.4 °F | 74.0 °F | 4.8 in. |
| July | 59.0 °F | 79.7 °F | 4.03 in. |
| August | 57.3 °F | 78.7 °F | 3.92 in. |
| September | 49.4 °F | 71.0 °F | 3.62 in. |
| October | 38.2 °F | 57.9 °F | 5.42 in. |
| November | 28.3 °F | 45.5 °F | 4.2 in. |
| December | 17.7 °F | 34.6 °F | 4.32 in. |
| Annual | 35 °F | 55.1 °F | 48.46 in. |
| Average First Frost Date | Oct. 1 - Oct. 10 |
| Average Last Frost Date | May 11 - May 20 |
| Average Days With Frost | 150-180 Days |
| Plant Hardiness Zone | Zone 5b : -15°F to -10°F |
| Plant Hardiness Zone - 2012 | Zone 5a : -20°F to -15°F |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Dfc - Subarctic With Cool Summers And Year Around Rainfall |