Weather on September 12
Manchester, NH
55 Years of Data
About This Date
September 12th in Manchester, NH typically brings pleasant fall weather, with average highs around 76°F and lows near 51°F — a 25°F daily swing. Over 56 years of records, the warmest September 12th was in 1982 (75°F average), while the coldest was 1985 (49°F) — a 26°F range across recorded history. Rain or other precipitation has occurred on about 20% of September 12th dates historically, with the wettest September 12th recording 3" of rain. Temperatures on this date have remained relatively stable over the past several decades.
Temperatures on this date have remained relatively stable over the past several decades.
Planning for September 12th in Manchester, NH? Great weather for outdoor activities.
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2026 | 78° | 44° | 61° | — | — |
| 2025 | 75° | 48° | 62° | — | — |
| 2024 | 84° | 47° | 65° | — | — |
| 2023 | 81° | 69° | 75° | 0.1" | — |
| 2022 | 84° | 65° | 74° | — | — |
| 2021 | 81° | 61° | 71° | — | — |
| 2020 | 71° | 50° | 61° | — | — |
| 2019 | 69° | 52° | 60° | — | — |
| 2018 | 69° | 66° | 68° | 0.31" | — |
| 2017 | 84° | 52° | 68° | — | — |
| 2016 | 78° | 49° | 63° | — | — |
| 2015 | 79° | 58° | 68° | 0.01" | — |
| 2014 | 69° | 52° | 60° | — | — |
| 2013 | 82° | 65° | 73° | 3" | — |
| 2012 | 78° | 49° | 63° | — | — |
| 2011 | 82° | 58° | 70° | — | — |
| 2010 | 63° | 53° | 58° | — | — |
| 2009 | 65° | 57° | 61° | 0.42" | — |
| 2008 | 66° | 52° | 59° | 0.15" | — |
| 2007 | 72° | 55° | 63° | — | — |
| 2006 | 69° | 44° | 57° | — | — |
| 2005 | 90° | 56° | 73° | — | — |
| 2004 | 79° | 47° | 63° | — | — |
| 2003 | 73° | 53° | 63° | — | — |
| 2002 | 70° | 49° | 59° | — | — |
| 2001 | 78° | 48° | 63° | — | — |
| 2000 | 80° | 63° | 71° | — | — |
| 1999 | 78° | 51° | 65° | — | — |
| 1998 | 83° | 53° | 68° | — | — |
| 1997 | 68° | 53° | 61° | 0.33" | — |
| 1996 | 82° | 51° | 67° | — | — |
| 1995 | 72° | 36° | 54° | — | — |
| 1994 | 67° | 47° | 57° | — | — |
| 1993 | 67° | 37° | 52° | — | — |
| 1992 | 78° | 42° | 60° | — | — |
| 1991 | 64° | 39° | 52° | — | — |
| 1990 | 80° | 57° | 69° | 0.1" | — |
| 1989 | 84° | 60° | 72° | — | — |
| 1988 | 70° | 43° | 56° | — | — |
| 1987 | 64° | 57° | 61° | — | — |
| 1986 | 79° | 66° | 72° | — | — |
| 1985coldest | 63° | 36° | 49° | — | — |
| 1984 | 84° | 53° | 69° | 0.09" | — |
| 1983 | 93° | 53° | 73° | — | — |
| 1982warmest | 88° | 63° | 75° | — | — |
| 1981 | 76° | 51° | 63° | — | — |
| 1980 | 77° | 48° | 63° | — | — |
| 1979 | 69° | 41° | 55° | — | — |
| 1978 | 70° | 51° | 60° | 0.21" | — |
| 1977 | 67° | 39° | 53° | — | — |
| 1976 | 70° | 47° | 58° | — | — |
| 1975 | 72° | 42° | 57° | — | — |
| 1974 | 78° | 59° | 69° | — | — |
| 1973 | 78° | 46° | 62° | — | — |
| 1972 | 77° | 44° | 61° | — | — |
| 1971 | 85° | 51° | 68° | 0.45" | — |
Manchester, NH Temperature Range by Month
Average monthly highs and lows. The shaded band shows the typical daily temperature range.
Manchester, NH Monthly Precipitation
Average rainfall and snowfall per month, in inches.
Manchester, NH Daily Temperature Calendar
Average daily high temperature for every day of the year. Each cell is the climatological mean for that calendar day across 55 years of NOAA data.
Best Time to Visit Manchester, NH
Most pleasant months in Manchester, NH: May, June, August, September.
What to expect on September 12th
This page shows what actually happened each year. For the odds — typical high and low, and how often it stays dry — see the climatological outlook for this date.
September 12th outlook →