Thornton, New Hampshire Climate
United States
Pop. 1,963 Elev. 203 m / 666 ft
TZ: America/New_York (UTC-4) ·
Thornton experiences a wide climate range, from bitterly cold winters of 7°F (-14°C) in January to mild summers reaching 78°F (26°C) in July. Wind chill can push winter lows to -3°F (-19°C). Precipitation occurs on roughly 53 days per year (33.6 in / 854 mm total), with snow on 16 days and 110 in (2804 mm) of annual accumulation. Overcast skies are common, with only 79 sunny days per year. Nearby lake water reaches 72°F (22°C) in summer.
| Temperature | 78°F (25°C) high | 7°F (-14°C) low |
| Feels like | -3°F (-19°C) low | |
| Rain | 53 days | 33.6 in (854 mm) /yr |
| Snow | 16 days | 110.4 in (2804 mm) /yr |
| Sky | 79 sunny | 18 stormy |
| Wind | 2.4 mph (1.1 m/s) avg |
Looking for a place with a climate like Thornton? Explore and filter 150,000+ cities worldwide.
Explore on the MapMonthly Climate Chart
Best months to visit: Jun, Aug, Sep
Sky & Air by Month
Cloud cover (%)
71
Jan 71
Feb 70
Mar 71
Apr 79
May 62
Jun 61
Jul 48
Aug 45
Sep 50
Oct 77
Nov 77
Dec Humidity (%)
71
Jan 70
Feb 65
Mar 59
Apr 74
May 72
Jun 74
Jul 68
Aug 70
Sep 73
Oct 77
Nov 75
Dec Weather Days by Month
Water Temperatures
Cities with Similar Climate
Find similar cities on the map →Nearby Cities
Nearby
Commercial airport 36 mi Lebanon Municipal Airport (LEB)
Ski resort 4 mi Campton Mountain
National park 61 mi Grafton Notch State Park
Mountain peak
(5,089 ft) 18 mi Mount Lincoln
Hospital 9 mi Speare Memorial Hospital
Hiking trail 5 mi Welch-Dickey Loop Trail
Interested in Thornton?
Hotels
Flights
Real Estate
Insurance
Connectivity
Monthly Weather Data
↑ See chart| Month | Avg High | Avg Low | Rainfall | Snowfall | Sunny Days |
|---|---|---|---|---|---|
| January | 23°F -5°C | 7°F -14°C | 0.1 in 2 mm | 15.3 in389 mm | 6 |
| February | 25°F -4°C | 10°F -12°C | 0.4 in 11 mm | 33.6 in853 mm | 3 |
| March | 42°F 6°C | 23°F -5°C | 3.1 in 79 mm | 18.2 in461 mm | 5 |
| April | 53°F 12°C | 34°F 1°C | 3.3 in 84 mm | 9.6 in244 mm | 4 |
| May | 61°F 16°C | 45°F 7°C | 6.4 in 163 mm | 0.1 in3 mm | 4 |
| June | 73°F 23°C | 54°F 12°C | 3.3 in 84 mm | — | 9 |
| July | 78°F 25°C | 60°F 15°C | 3.9 in 100 mm | — | 7 |
| August | 75°F 24°C | 53°F 12°C | 1.0 in 25 mm | — | 11 |
| September | 69°F 21°C | 47°F 9°C | 3.2 in 80 mm | — | 15 |
| October | 56°F 13°C | 37°F 3°C | 4.5 in 115 mm | — | 11 |
| November | 38°F 3°C | 28°F -2°C | 2.7 in 68 mm | 12.7 in322 mm | 3 |
| December | 26°F -3°C | 9°F -13°C | 1.7 in 44 mm | 20.9 in532 mm | 1 |
Weather Days by Month
↑ See chart| Month | Sunny Days | Storm Days |
|---|---|---|
| January | 6 | 0 |
| February | 3 | 0 |
| March | 5 | 1 |
| April | 4 | 1 |
| May | 4 | 3 |
| June | 9 | 2 |
| July | 7 | 5 |
| August | 11 | 1 |
| September | 15 | 2 |
| October | 11 | 2 |
| November | 3 | 0 |
| December | 1 | 1 |
Water Temperatures Data
↑ See chart| Month | Lake Avg High |
|---|---|
| January | 32°F 0°C |
| February | 32°F 0°C |
| March | 32°F 0°C |
| April | 35°F 1°C |
| May | 45°F 7°C |
| June | 58°F 14°C |
| July | 72°F 22°C |
| August | 70°F 21°C |
| September | 63°F 17°C |
| October | 53°F 12°C |
| November | 41°F 5°C |
| December | 33°F 0°C |