| Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
| January | 14°F | 32°F | 22°F | 1.7" |
| February | 12°F | 32°F | 21°F | 3.0" |
| March | 21°F | 42°F | 30°F | 4.7" |
| April | 34°F | 56°F | 43°F | 7.1" |
| May | 44°F | 65°F | 53°F | 4.1" |
| June | 57°F | 78°F | 66°F | 7.3" |
| July | 61°F | 81°F | 70°F | 4.3" |
| August | 60°F | 83°F | 70°F | 4.3" |
| September | 55°F | 75°F | 64°F | 6.0" |
| October | 46°F | 62°F | 53°F | 14.4" |
| November | 31°F | 47°F | 38°F | 7.1" |
| December | 18°F | 34°F | 25°F | 3.8" |
| Index | Suissevale | New Hampshire | National |
| Air quality index | 31 | 34 | 42 |
| Pollution index | 4,139,320 | 3,959,618 | 2,726,193 |
| Measurement | Total |
| Days measured | 316 |
| Days with good air quality | 308 |
| Days with moderate air quality | 8 |
| Days w/ poor A.Q. for sensitive groups | 0 |
| Days with unhealthy air quality | 0 |
| Pollutant | Total |
| Arsenic | 0.010% |
| Benzene | 0.060% |
| Carbon Tetrachloride | 0.010% |
| Lead | 0.020% |
| Mercury | 0.010% |
| City | Population | Air Quality Index | National Avg. |
| New Hampton, NH | 326 | 31 | 38.0% |
| Wolfeboro, NH | 3,352 | 31 | 38.0% |
| Center Sandwich, NH | 98 | 31 | 38.0% |
| Ashland, NH | 1,630 | 31 | 38.0% |
| Center Ossipee, NH | 428 | 31 | 38.0% |
| Suissevale, NH | 386 | 31 | 38.0% |
| City | Population | Air Quality Index | National Avg. |
| Newington, GA | 386 | 39 | 22.0% |
| Addieville, IL | 386 | 43 | 14.0% |
| Carbon Hill, IL | 386 | 0 | 100.0% |
| Clear Lake, IL | 386 | 40 | 20.0% |
| Hartsburg, IL | 386 | 44 | 12.0% |
| Suissevale, NH | 386 | 31 | 38.0% |
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