Weather on March 18
Arvada, CO
55 Years of Data
Avg High
53°F
Avg Low
26°F
Warmest
1972
56°F avg
Coldest
1988
21°F avg
About This Date
March 18th in Arvada, CO typically brings cool spring weather, with average highs around 53°F and lows near 26°F — a 27°F daily swing. Over 56 years of records, the warmest March 18th was in 1972 (56°F average), while the coldest was 1988 (21°F) — a 35°F range across recorded history. Precipitation has occurred on 18% of recorded March 18th dates, with snow falling 11% of the time (heaviest snowfall: 10"). The last decade has been 4.9°F warmer on this date compared to 20-30 years ago.
The last decade has been 4.9°F warmer on this date compared to 20-30 years ago.
Planning for March 18th in Arvada, CO? Bring layers as temperatures can vary throughout the day.
Cooling Trend
0.3°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2026 | 72° | 11° | 41° | — | — |
| 2025 | 72° | 40° | 56° | — | — |
| 2024 | 45° | 28° | 36° | — | — |
| 2023 | 41° | 17° | 29° | — | — |
| 2022 | 34° | 20° | 27° | 0.64" | 2.2" |
| 2021 | 42° | 18° | 30° | — | — |
| 2020 | 56° | 34° | 45° | — | — |
| 2019 | 50° | 25° | 37° | — | — |
| 2018 | 64° | 30° | 47° | — | — |
| 2017 | 71° | 30° | 51° | — | — |
| 2016 | 39° | 16° | 27° | 1.02" | 3" |
| 2015 | 62° | 31° | 46° | — | — |
| 2014 | 69° | 26° | 48° | — | — |
| 2013 | 60° | 19° | 40° | — | — |
| 2012 | 73° | 40° | 56° | — | — |
| 2011 | 46° | 22° | 34° | — | — |
| 2010 | 57° | 24° | 41° | — | — |
| 2009 | 51° | 32° | 42° | — | — |
| 2008 | 50° | 15° | 33° | — | — |
| 2007 | 66° | 40° | 53° | — | — |
| 2006 | 50° | 27° | 38° | — | — |
| 2005 | 33° | 18° | 25° | — | — |
| 2004 | 56° | 32° | 44° | — | — |
| 2003 | 26° | 23° | 25° | — | — |
| 2002 | 46° | 21° | 34° | — | — |
| 2001 | 38° | 20° | 29° | — | — |
| 2000 | 48° | 18° | 33° | — | — |
| 1999 | 49° | 26° | 37° | — | — |
| 1998 | 58° | 18° | 38° | 0.56" | — |
| 1997 | 69° | 25° | 47° | — | — |
| 1996 | 35° | 18° | 26° | 0.76" | 3" |
| 1995 | 68° | 33° | 51° | — | — |
| 1994 | 72° | 29° | 50° | — | — |
| 1993 | 44° | 20° | 32° | — | — |
| 1992 | 52° | 30° | 41° | 0.13" | — |
| 1991 | 60° | 25° | 42° | — | — |
| 1990 | 54° | 29° | 41° | — | — |
| 1989 | 60° | 22° | 41° | — | — |
| 1988coldest | 28° | 14° | 21° | — | — |
| 1987 | 32° | 19° | 26° | — | — |
| 1986 | 44° | 30° | 37° | 0.66" | — |
| 1985 | 66° | 33° | 50° | — | — |
| 1984 | 61° | 27° | 44° | — | — |
| 1983 | 34° | 20° | 27° | 0.05" | 1" |
| 1982 | 66° | 32° | 49° | — | — |
| 1981 | 52° | 25° | 38° | 0.56" | 4" |
| 1980 | 48° | 20° | 34° | — | — |
| 1979 | 35° | 18° | 26° | 2.39" | 10" |
| 1978 | 74° | 36° | 55° | — | — |
| 1977 | 41° | 15° | 28° | — | — |
| 1976 | 69° | 37° | 53° | — | — |
| 1975 | 60° | 28° | 44° | — | — |
| 1974 | 65° | 40° | 52° | — | — |
| 1973 | 58° | 38° | 48° | — | — |
| 1972warmest | 76° | 37° | 56° | — | — |
| 1971 | 35° | 20° | 27° | 0.03" | — |
56 years of data from WATERTON NORTH COLORADO