Weather on May 18
Arvada, CO
55 Years of Data
Avg High
70°F
Avg Low
44°F
Warmest
1988
72°F avg
Coldest
1983
35°F avg
About This Date
May 18th in Arvada, CO typically brings pleasant spring weather, with average highs around 70°F and lows near 44°F — a 26°F daily swing. Over 55 years of records, the warmest May 18th was in 1988 (72°F average), while the coldest was 1983 (35°F) — a 37°F range across recorded history. Precipitation has occurred on 31% of recorded May 18th dates, with snow falling 2% of the time (heaviest snowfall: 2.5"). The last decade has been 2.5°F warmer on this date compared to 20-30 years ago.
The last decade has been 2.5°F warmer on this date compared to 20-30 years ago.
Planning for May 18th in Arvada, CO? Great weather for outdoor activities. Consider bringing rain gear or an umbrella.
Warming Trend
0.5°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 72° | 45° | 58° | — | — |
| 2024 | 81° | 48° | 64° | — | — |
| 2023 | 78° | 48° | 63° | 0.25" | — |
| 2022 | 84° | 52° | 68° | — | — |
| 2021 | 68° | 45° | 56° | 0.84" | — |
| 2020 | 77° | 47° | 62° | — | — |
| 2019 | 74° | 36° | 55° | 0.1" | — |
| 2018 | 88° | 50° | 69° | — | — |
| 2017 | 72° | 32° | 52° | 2.54" | 2.5" |
| 2016 | 48° | 34° | 41° | 0.1" | — |
| 2015 | 68° | 43° | 55° | 0.71" | — |
| 2014 | 69° | 47° | 58° | — | — |
| 2013 | 86° | 55° | 71° | — | — |
| 2012 | 79° | 52° | 65° | — | — |
| 2011 | 46° | 32° | 39° | — | — |
| 2010 | 64° | 34° | 49° | — | — |
| 2009 | 74° | 47° | 60° | — | — |
| 2008 | 70° | 44° | 57° | — | — |
| 2007 | 67° | 39° | 53° | — | — |
| 2006 | 70° | 45° | 57° | — | — |
| 2005 | 68° | 41° | 55° | — | — |
| 2004 | 68° | 45° | 56° | — | — |
| 2003 | 67° | 44° | 55° | — | — |
| 2002 | 61° | 40° | 50° | — | — |
| 2001 | 58° | 42° | 50° | 0.71" | — |
| 2000 | 49° | 38° | 43° | 1.85" | — |
| 1999 | 65° | 41° | 53° | — | — |
| 1998 | 84° | 53° | 69° | — | — |
| 1997 | 87° | 49° | 68° | — | — |
| 1996 | 84° | 44° | 64° | — | — |
| 1995 | 63° | 34° | 48° | 3.56" | — |
| 1994 | 87° | 51° | 69° | — | — |
| 1993 | 68° | 44° | 56° | 0.91" | — |
| 1992 | 72° | 52° | 62° | 0.25" | — |
| 1991 | 67° | 47° | 57° | — | — |
| 1990 | 70° | 43° | 56° | — | — |
| 1989 | 68° | 44° | 56° | — | — |
| 1988warmest | 87° | 58° | 72° | — | — |
| 1987 | 74° | 43° | 58° | 0.43" | — |
| 1986 | 59° | 36° | 47° | — | — |
| 1985 | 67° | 44° | 55° | 0.28" | — |
| 1984 | 72° | 41° | 56° | — | — |
| 1983coldest | 39° | 31° | 35° | 1.42" | — |
| 1982 | 68° | 43° | 55° | — | — |
| 1981 | 48° | 39° | 44° | 2.67" | — |
| 1980 | 43° | 32° | 37° | 1.17" | — |
| 1979 | 80° | 49° | 64° | — | — |
| 1978 | 72° | 35° | 53° | — | — |
| 1977 | 75° | 39° | 57° | — | — |
| 1976 | 83° | 46° | 64° | — | — |
| 1975 | 74° | 49° | 61° | — | — |
| 1974 | 82° | 49° | 65° | — | — |
| 1973 | 86° | 50° | 68° | — | — |
| 1972 | 78° | 57° | 68° | — | — |
| 1971 | 51° | 34° | 42° | 0.1" | — |
55 years of data from WATERTON NORTH COLORADO