Weather on August 15
Manchester, NH
55 Years of Data
Avg High
81°F
Avg Low
60°F
Warmest
2002
84°F avg
Coldest
1972
59°F avg
About This Date
August 15th in Manchester, NH typically brings warm summer weather, with average highs around 81°F and lows near 60°F. Over 55 years of records, the warmest August 15th was in 2002 (84°F average), while the coldest was 1972 (59°F) — a 25°F range across recorded history. Rain or other precipitation has occurred on about 38% of August 15th dates historically, with the wettest August 15th recording 4.95" of rain. The last decade has been 1.8°F warmer on this date compared to 20-30 years ago.
The last decade has been 1.8°F warmer on this date compared to 20-30 years ago.
Planning for August 15th in Manchester, NH? Stay hydrated and seek shade during peak afternoon hours. Consider bringing rain gear or an umbrella.
Warming Trend
0.8°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 81° | 61° | 71° | — | — |
| 2024 | 85° | 61° | 73° | 0.89" | — |
| 2023 | 72° | 66° | 69° | 1.6" | — |
| 2022 | 88° | 56° | 72° | — | — |
| 2021 | 82° | 64° | 73° | — | — |
| 2020 | 76° | 63° | 69° | — | — |
| 2019 | 82° | 60° | 71° | — | — |
| 2018 | 89° | 68° | 79° | — | — |
| 2017 | 76° | 64° | 70° | 0.15" | — |
| 2016 | 85° | 69° | 77° | — | — |
| 2015 | 89° | 68° | 79° | 0.2" | — |
| 2014 | 71° | 56° | 63° | — | — |
| 2013 | 77° | 52° | 64° | — | — |
| 2012 | 82° | 68° | 75° | 0.64" | — |
| 2011 | 68° | 60° | 64° | 4.95" | — |
| 2010 | 80° | 62° | 71° | 0.15" | — |
| 2009 | 91° | 64° | 78° | — | — |
| 2008 | 80° | 60° | 70° | 0.56" | — |
| 2007 | 83° | 55° | 69° | — | — |
| 2006 | 82° | 65° | 73° | 0.53" | — |
| 2005 | 71° | 61° | 66° | 2.74" | — |
| 2004 | 71° | 62° | 67° | 1.24" | — |
| 2003 | 90° | 66° | 78° | — | — |
| 2002warmest | 95° | 73° | 84° | — | — |
| 2001 | 81° | 57° | 69° | — | — |
| 2000 | 76° | 63° | 69° | 0.03" | — |
| 1999 | 71° | 62° | 67° | 0.38" | — |
| 1998 | 83° | 65° | 74° | 0.03" | — |
| 1997 | 72° | 54° | 63° | — | — |
| 1996 | 84° | 53° | 69° | — | — |
| 1995 | 81° | 62° | 71° | — | — |
| 1994 | 81° | 53° | 67° | — | — |
| 1993 | 86° | 59° | 73° | — | — |
| 1992 | 79° | 52° | 65° | — | — |
| 1991 | 98° | 65° | 81° | — | — |
| 1990 | 78° | 54° | 66° | — | — |
| 1989 | 82° | 64° | 73° | — | — |
| 1988 | 90° | 68° | 79° | 1.17" | — |
| 1987 | 84° | 55° | 70° | — | — |
| 1986 | 77° | 53° | 65° | — | — |
| 1985 | 92° | 65° | 78° | — | — |
| 1984 | 80° | 64° | 72° | 0.05" | — |
| 1983 | 74° | 48° | 61° | — | — |
| 1982 | 83° | 49° | 66° | — | — |
| 1981 | 71° | 57° | 64° | — | — |
| 1980 | 78° | 63° | 70° | 0.41" | — |
| 1979 | 76° | 47° | 61° | 0.23" | — |
| 1978 | 89° | 63° | 76° | — | — |
| 1977 | 81° | 57° | 69° | 0.13" | — |
| 1976 | 85° | 66° | 75° | 1.09" | — |
| 1975 | 87° | 57° | 72° | — | — |
| 1974 | 87° | 54° | 70° | — | — |
| 1973 | 68° | 63° | 65° | 0.25" | — |
| 1972coldest | 65° | 54° | 59° | — | — |
| 1971 | 85° | 49° | 67° | — | — |
55 years of data from MANCHESTER