| 2023 Hardiness Zone: | Zone 4b: -25°F to -20°F Zone 4a: -30°F to -25°F |
| 2012 Hardiness Zone: | Zone 3b: -35°F to -30°F Zone 4b: -25°F to -20°F Zone 4a: -30°F to -25°F |
| 1990 Hardiness Zone: | Zone 3b: -35F to -30F |
| Average First Frost Date: | Sep.11 - Sep. 20 |
| Average Last Frost Date: | Jun. 1 - Jun. 10 |
| Koppen-Geiger Climate Zone: | Dfb - Humid Continental Mild Summer, Wet All Year |
| Ecoregion: | 58m - Quebec/New England Boundary Mountains |
| Heat Zone Days: | Rare Over 86°F |
Annual Climate Data for ZIP Code 03592 - Pittsburg, NH | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | -2 | -1 | 11 | 25 | 37 | 47 | 52 | 50 | 42 | 32 | 22 | 8 | 27 |
| Avg Max Temp (°F) | 22 | 25 | 35 | 47 | 62 | 70 | 75 | 73 | 64 | 52 | 38 | 27 | 49 |
| Avg Precip (In.) | 2.93 | 2.13 | 2.86 | 3 | 3.95 | 4.53 | 4.43 | 4.74 | 4.05 | 3.66 | 3.66 | 3.08 | 43.01 |