Manchester averages 9.2 days a year above 90°F, with October the wettest month at 4.36 in of normal rain. The hottest day on record was 105°F on Aug 3, 1988; the coldest, −29°F on Jan 22, 1984. The single biggest 24-hour rain event recorded was 6 in on May 14, 2006.
Climate and Average Weather Year Round in Manchester
Year-round temperature
In Manchester, the warmest months are June through September, with average daily highs between 73°F and 81°F. The coldest stretch runs December through February, with highs between 32°F and 38°F and overnight lows reaching 13°F.
Rainfall through the year
Rainfall in Manchester averages 3.5 in per month over the long run. October is the wettest at 4.4 in, while January is the driest at 2.7 in.
Days at 90 °F or hotter
Manchester averages 9.2 days per year at 90 °F or hotter. The hottest year on record saw 22 such days (2002); the coolest just 1 (2020).
Precipitation this year
As of May 29, Manchester has received 11.1 in of precipitation this year — 27% below the long-term normal for this point in the year (15.2 in).