Weather on May 18
Denver, CO
55 Years of Data
About This Date
May 18th in Denver, CO typically brings pleasant spring weather, with average highs around 76°F and lows near 45°F — a 31°F daily swing. Over 56 years of records, the warmest May 18th was in 1998 (72°F average), while the coldest was 1981 (43°F) — a 29°F range across recorded history. Precipitation has occurred on 32% of recorded May 18th dates, with snow falling 2% of the time. Temperatures on this date have remained relatively stable over the past several decades.
Temperatures on this date have remained relatively stable over the past several decades.
Planning for May 18th in Denver, CO? Great weather for outdoor activities. Consider bringing rain gear or an umbrella.
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2026 | 69° | 41° | 55° | 0.89" | — |
| 2025 | 71° | 44° | 58° | — | — |
| 2024 | 88° | 51° | 69° | — | — |
| 2023 | 81° | 48° | 64° | 0.28" | — |
| 2022 | 89° | 52° | 70° | — | — |
| 2021 | 66° | — | — | 1.7" | — |
| 2020 | 86° | 54° | 70° | — | — |
| 2019 | 75° | 40° | 57° | 0.13" | — |
| 2018 | 89° | 55° | 72° | — | — |
| 2017 | 76° | 34° | 55° | 3.1" | — |
| 2016 | 50° | 39° | 45° | 0.08" | — |
| 2015 | 65° | 42° | 53° | 0.03" | — |
| 2014 | 70° | 44° | 57° | — | — |
| 2013 | 87° | 51° | 69° | — | — |
| 2012 | 81° | 48° | 64° | — | — |
| 2011 | 59° | 39° | 49° | — | — |
| 2010 | 76° | 50° | 63° | — | — |
| 2009 | 85° | 50° | 67° | — | — |
| 2008 | 82° | 47° | 64° | — | — |
| 2007 | 76° | 45° | 60° | — | — |
| 2006 | 87° | 51° | 69° | — | — |
| 2005 | 77° | 44° | 61° | — | — |
| 2004 | 81° | 48° | 64° | — | — |
| 2003 | 78° | 50° | 64° | — | — |
| 2002 | 78° | 42° | 60° | — | — |
| 2001 | 79° | 45° | 62° | 0.08" | — |
| 2000 | 53° | 40° | 46° | 0.38" | — |
| 1999 | 77° | 37° | 57° | — | — |
| 1998warmest | 87° | 58° | 72° | — | — |
| 1997 | 79° | 42° | 60° | — | — |
| 1996 | 91° | 50° | 71° | — | — |
| 1995 | 66° | 33° | 50° | 0.03" | — |
| 1994 | 84° | 58° | 71° | — | — |
| 1993 | 74° | 43° | 58° | — | — |
| 1992 | 87° | 43° | 65° | — | — |
| 1991 | 77° | 52° | 64° | — | — |
| 1990 | 84° | 43° | 63° | — | — |
| 1989 | 75° | 51° | 63° | — | — |
| 1988 | 75° | 51° | 63° | 2.18" | — |
| 1987 | 79° | 45° | 62° | 0.05" | — |
| 1986 | 68° | 38° | 53° | — | — |
| 1985 | 69° | 42° | 56° | 0.05" | — |
| 1984 | 75° | 44° | 60° | — | — |
| 1983 | 62° | 30° | 46° | 1.57" | 1" |
| 1982 | 78° | 43° | 60° | 2.67" | — |
| 1981coldest | 46° | 40° | 43° | 0.99" | — |
| 1980 | 61° | 41° | 51° | — | — |
| 1979 | 79° | 51° | 65° | — | — |
| 1978 | 66° | 38° | 52° | 2.82" | — |
| 1977 | 81° | 40° | 60° | — | — |
| 1976 | 87° | 41° | 64° | — | — |
| 1975 | 77° | 47° | 62° | — | — |
| 1974 | 85° | 53° | 69° | — | — |
| 1973 | 83° | 47° | 65° | — | — |
| 1972 | 81° | 52° | 66° | — | — |
| 1971 | 56° | 34° | 45° | 0.58" | — |
Denver, CO Temperature Range by Month
Average monthly highs and lows. The shaded band shows the typical daily temperature range.
Denver, CO Monthly Precipitation
Average rainfall and snowfall per month, in inches.
Denver, CO Daily Temperature Calendar
Average daily high temperature for every day of the year. Each cell is the climatological mean for that calendar day across 55 years of NOAA data.
Best Time to Visit Denver, CO
Denver, CO has no months that meet our "pleasant" threshold — every season has tradeoffs.