Weather on March 21
Manchester, NH
55 Years of Data
Avg High
47°F
Avg Low
27°F
Warmest
2012
66°F avg
Coldest
1988
20°F avg
About This Date
March 21st in Manchester, NH typically brings chilly spring weather, with average highs around 47°F and lows near 27°F. Over 56 years of records, the warmest March 21st was in 2012 (66°F average), while the coldest was 1988 (20°F) — a 46°F range across recorded history. Precipitation has occurred on 32% of recorded March 21st dates, with snow falling 14% of the time (heaviest snowfall: 4.2"). The last decade has been 4.7°F warmer on this date compared to 20-30 years ago.
The last decade has been 4.7°F warmer on this date compared to 20-30 years ago.
Planning for March 21st in Manchester, NH? Bring layers as temperatures can vary throughout the day. Consider bringing rain gear or an umbrella.
Warming Trend
1.1°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2026 | 47° | 35° | 41° | — | — |
| 2025 | 46° | 39° | 43° | 0.84" | — |
| 2024 | 40° | 25° | 33° | — | 0.3" |
| 2023 | 58° | 26° | 42° | — | — |
| 2022 | 56° | 41° | 48° | — | — |
| 2021 | 66° | 27° | 47° | — | — |
| 2020 | 54° | 30° | 42° | — | — |
| 2019 | 51° | 31° | 41° | — | — |
| 2018 | 42° | 28° | 35° | — | — |
| 2017 | 54° | 32° | 43° | — | — |
| 2016 | 46° | 27° | 37° | 0.38" | 4.2" |
| 2015 | 42° | 26° | 34° | 0.08" | 0.2" |
| 2014 | 41° | 28° | 35° | — | — |
| 2013 | 40° | 20° | 30° | — | — |
| 2012warmest | 83° | 50° | 66° | — | — |
| 2011 | 38° | 32° | 35° | 0.48" | — |
| 2010 | 51° | 39° | 45° | — | — |
| 2009 | 46° | 23° | 35° | — | — |
| 2008 | 36° | 24° | 30° | — | — |
| 2007 | 38° | 16° | 27° | — | — |
| 2006 | 46° | 21° | 34° | — | — |
| 2005 | 50° | 30° | 40° | — | — |
| 2004 | 48° | 25° | 36° | 0.33" | — |
| 2003 | 64° | 35° | 50° | 1.27" | — |
| 2002 | 48° | 31° | 39° | — | — |
| 2001 | 44° | 28° | 36° | 0.13" | — |
| 2000 | 43° | 29° | 36° | — | — |
| 1999 | 48° | 22° | 35° | 0.18" | — |
| 1998 | 32° | 26° | 29° | — | — |
| 1997 | 41° | 16° | 28° | — | — |
| 1996 | 51° | 20° | 35° | 1.42" | — |
| 1995 | 55° | 29° | 42° | 0.13" | — |
| 1994 | 43° | 25° | 34° | — | — |
| 1993 | 42° | 20° | 31° | — | 0.3" |
| 1992 | 36° | 21° | 28° | — | — |
| 1991 | 33° | 25° | 29° | — | — |
| 1990 | 40° | 34° | 37° | 0.84" | — |
| 1989 | 46° | 24° | 35° | 0.76" | 2.8" |
| 1988coldest | 36° | 5° | 20° | — | — |
| 1987 | 40° | 32° | 36° | 0.33" | 0.3" |
| 1986 | 38° | 7° | 22° | — | — |
| 1985 | 60° | 24° | 42° | — | — |
| 1984 | 43° | 34° | 38° | 0.03" | — |
| 1983 | 62° | 29° | 45° | — | — |
| 1982 | 51° | 27° | 39° | — | — |
| 1981 | 35° | 24° | 30° | 0.28" | 1.2" |
| 1980 | 61° | 32° | 46° | 0.08" | — |
| 1979 | 53° | 39° | 46° | — | — |
| 1978 | 42° | 26° | 34° | — | — |
| 1977 | 46° | 26° | 36° | 0.05" | 0.3" |
| 1976 | 69° | 37° | 53° | — | — |
| 1975 | 50° | 28° | 39° | 1.96" | — |
| 1974 | 35° | 23° | 29° | — | — |
| 1973 | 41° | 23° | 32° | — | — |
| 1972 | 41° | 14° | 28° | — | — |
| 1971 | 43° | 27° | 35° | — | — |
56 years of data from MANCHESTER