Weather on March 18
Waterbury, CT
55 Years of Data
Avg High
48°F
Avg Low
29°F
Warmest
2011
59°F avg
Coldest
1976
22°F avg
About This Date
March 18th in Waterbury, CT typically brings chilly spring weather, with average highs around 48°F and lows near 29°F. Over 55 years of records, the warmest March 18th was in 2011 (59°F average), while the coldest was 1976 (22°F) — a 37°F range across recorded history. Precipitation has occurred on 29% of recorded March 18th dates, with snow falling 5% of the time (heaviest snowfall: 5"). The last decade has been 4.5°F warmer on this date compared to 20-30 years ago.
The last decade has been 4.5°F warmer on this date compared to 20-30 years ago.
Planning for March 18th in Waterbury, CT? Bring layers as temperatures can vary throughout the day.
Warming Trend
1.1°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2026 | 35° | 26° | 31° | — | — |
| 2025 | 62° | 36° | 49° | — | — |
| 2024 | 53° | 40° | 46° | — | — |
| 2023 | 52° | 44° | 48° | 0.08" | — |
| 2022 | 66° | 45° | 55° | — | — |
| 2021 | 46° | 41° | 44° | 1.93" | — |
| 2020 | 50° | 28° | 39° | — | — |
| 2019 | 44° | 21° | 33° | — | — |
| 2018 | 46° | 20° | 33° | — | — |
| 2017 | 45° | 21° | 33° | — | — |
| 2016 | 64° | 33° | 49° | — | — |
| 2015 | 54° | 25° | 39° | — | — |
| 2014 | 34° | 18° | 26° | — | — |
| 2013 | 36° | 22° | 29° | 0.41" | — |
| 2012 | 61° | 35° | 48° | — | — |
| 2011warmest | 75° | 42° | 59° | — | — |
| 2010 | 63° | 33° | 48° | — | — |
| 2009 | 53° | 28° | 41° | — | — |
| 2008 | 41° | 27° | 34° | — | — |
| 2007 | 39° | 26° | 33° | — | — |
| 2006 | 42° | 27° | 35° | — | — |
| 2005 | 46° | 21° | 34° | — | — |
| 2004 | 34° | 24° | 29° | 0.03" | — |
| 2003 | 61° | 36° | 48° | — | — |
| 2002 | 39° | 32° | 36° | 0.84" | — |
| 2001 | 45° | 33° | 39° | 0.08" | — |
| 2000 | 38° | 20° | 29° | — | — |
| 1998 | 44° | 29° | 36° | 0.61" | — |
| 1997 | 46° | 34° | 40° | — | — |
| 1996 | 58° | 32° | 45° | — | — |
| 1995 | 54° | 36° | 45° | — | — |
| 1994 | 34° | 18° | 26° | — | 0.5" |
| 1993 | 37° | 10° | 24° | 0.36" | — |
| 1992 | 43° | 26° | 34° | — | — |
| 1991 | 54° | 30° | 42° | 1.75" | — |
| 1990 | 63° | 42° | 52° | 1.5" | — |
| 1989 | 68° | 42° | 55° | 0.1" | — |
| 1988 | 46° | 26° | 36° | — | — |
| 1987 | 48° | 29° | 38° | — | — |
| 1986 | 53° | 31° | 42° | — | — |
| 1985 | 36° | 25° | 30° | — | — |
| 1984 | 41° | 34° | 37° | — | — |
| 1983 | 51° | 35° | 43° | 1.83" | — |
| 1982 | 51° | 28° | 40° | — | — |
| 1981 | 36° | 13° | 24° | — | 0.1" |
| 1980 | 53° | 39° | 46° | 4.67" | — |
| 1979 | 45° | 25° | 35° | — | — |
| 1978 | 38° | 19° | 28° | — | — |
| 1977 | 45° | 25° | 35° | 2.08" | 5" |
| 1976coldest | 34° | 10° | 22° | — | — |
| 1975 | 54° | 24° | 39° | — | — |
| 1974 | 48° | 22° | 35° | — | — |
| 1973 | 62° | 29° | 45° | 1.45" | — |
| 1972 | 50° | 35° | 43° | 0.41" | — |
| 1971 | 42° | 23° | 33° | — | — |
55 years of data from MT CARMEL