Climate almanac

Newmarket

New Hampshire, United States · 43.08°, -70.94°

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What is the climate like in Newmarket?

The best time to visit Newmarket is typically August – September, with trip comfort peaking in September (6.9/10). Newmarket is warmest in July, when daily highs average 82°F (28°C), and coolest in January, when lows fall to about 23°F (-5°C). The wettest month is typically December and the driest is September; the year sees roughly 45 in (1144 mm) of precipitation.

  • Best time to visitAugust – September — comfort peaks in September (6.9/10)
  • Warmest monthJuly — average high 82°F (28°C)
  • Coolest monthJanuary — average low 23°F (-5°C)
  • Wettest monthDecember (4.9 in (125 mm))
  • Driest monthSeptember (3.0 in (75 mm))
  • Annual precipitation45 in (1144 mm)
  • Based on2016-2025 daily ERA5 reanalysis data (10-year normals)
  • Records fromDurham, 7 km away (1893-2026)