Weather on March 18
Manchester, NH
55 Years of Data
Avg High
45°F
Avg Low
25°F
Warmest
2022
61°F avg
Coldest
1976
17°F avg
About This Date
March 18th in Manchester, NH typically brings chilly spring weather, with average highs around 45°F and lows near 25°F. Over 56 years of records, the warmest March 18th was in 2022 (61°F average), while the coldest was 1976 (17°F) — a 44°F range across recorded history. Rain or other precipitation has occurred on about 16% of March 18th dates historically, with the wettest March 18th recording 2.31" of rain. The last decade has been 4.3°F warmer on this date compared to 20-30 years ago.
The last decade has been 4.3°F warmer on this date compared to 20-30 years ago.
Planning for March 18th in Manchester, NH? Bring layers as temperatures can vary throughout the day.
Warming Trend
1.2°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2026 | 36° | 21° | 28° | — | — |
| 2025 | 57° | 32° | 45° | — | — |
| 2024 | 49° | 32° | 40° | — | — |
| 2023 | 51° | 32° | 42° | — | — |
| 2022warmest | 74° | 48° | 61° | — | — |
| 2021 | 46° | 34° | 40° | 1.04" | — |
| 2020 | 55° | 31° | 43° | — | — |
| 2019 | 41° | 23° | 32° | — | — |
| 2018 | 31° | 13° | 22° | — | — |
| 2017 | 37° | 12° | 25° | — | — |
| 2016 | 50° | 32° | 41° | — | — |
| 2015 | 26° | 20° | 23° | — | — |
| 2014 | 39° | 13° | 26° | — | — |
| 2013 | 37° | 17° | 27° | — | — |
| 2012 | 80° | 34° | 57° | — | — |
| 2011 | 67° | 42° | 54° | — | — |
| 2010 | 64° | 40° | 52° | — | — |
| 2009 | 61° | 28° | 45° | — | — |
| 2008 | 44° | 23° | 34° | — | — |
| 2007 | 32° | 21° | 27° | — | — |
| 2006 | 33° | 20° | 27° | — | — |
| 2005 | 43° | 27° | 35° | — | — |
| 2004 | 31° | 20° | 25° | 0.03" | — |
| 2003 | 58° | 31° | 44° | — | — |
| 2002 | 33° | 29° | 31° | 0.51" | — |
| 2001 | 44° | 32° | 38° | 0.1" | — |
| 2000 | 34° | 12° | 23° | — | — |
| 1999 | 63° | 34° | 48° | — | — |
| 1998 | 41° | 26° | 34° | — | — |
| 1997 | 38° | 16° | 27° | — | — |
| 1996 | 49° | 17° | 33° | — | — |
| 1995 | 41° | 32° | 37° | — | — |
| 1994 | 34° | 20° | 27° | — | — |
| 1993 | 48° | 5° | 27° | 1.14" | — |
| 1992 | 41° | 9° | 25° | — | — |
| 1991 | 32° | 26° | 29° | — | — |
| 1990 | 68° | 40° | 54° | 0.56" | — |
| 1989 | 54° | 31° | 42° | — | — |
| 1988 | 50° | 23° | 37° | — | — |
| 1987 | 37° | 24° | 31° | — | — |
| 1986 | 51° | 28° | 40° | — | — |
| 1985 | 47° | 25° | 36° | — | — |
| 1984 | 40° | 29° | 34° | — | — |
| 1983 | 41° | 34° | 37° | — | — |
| 1982 | 40° | 22° | 31° | — | — |
| 1981 | 38° | 6° | 22° | — | — |
| 1980 | 52° | 29° | 40° | 2.18" | — |
| 1979 | 38° | 20° | 29° | — | — |
| 1978 | 39° | 13° | 26° | — | — |
| 1977 | 45° | 25° | 35° | — | — |
| 1976coldest | 27° | 8° | 17° | — | — |
| 1975 | 50° | 19° | 35° | — | — |
| 1974 | 42° | 25° | 33° | — | — |
| 1973 | 50° | 34° | 42° | 1.65" | — |
| 1972 | 49° | 21° | 35° | 2.31" | — |
| 1971 | 41° | 26° | 34° | — | — |
56 years of data from MANCHESTER