Weather on June 18
Flagstaff, AZ
55 Years of Data
About This Date
June 18th in Flagstaff, AZ typically brings warm summer weather, with average highs around 80°F and lows near 43°F — a 37°F daily swing. Over 56 years of records, the warmest June 18th was in 2021 (76°F average), while the coldest was 1995 (48°F) — a 28°F range across recorded history. Rain or other precipitation has occurred on about 5% of June 18th dates historically. The last decade has been 3.6°F warmer on this date compared to 20-30 years ago.
The last decade has been 3.6°F warmer on this date compared to 20-30 years ago.
Planning for June 18th in Flagstaff, AZ? Stay hydrated and seek shade during peak afternoon hours.
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2026 | 83° | 53° | 68° | — | — |
| 2025 | 90° | 45° | 67° | — | — |
| 2024 | 78° | 44° | 61° | — | — |
| 2023 | 78° | 40° | 59° | — | — |
| 2022 | 72° | 55° | 63° | 0.21" | — |
| 2021warmest | 91° | 60° | 76° | — | — |
| 2020 | 77° | 42° | 60° | — | — |
| 2019 | 77° | 42° | 60° | — | — |
| 2018 | 75° | 37° | 56° | — | — |
| 2017 | 92° | 54° | 73° | — | — |
| 2016 | 86° | 39° | 63° | — | — |
| 2015 | 86° | 50° | 68° | — | — |
| 2014 | 74° | 43° | 58° | — | — |
| 2013 | 82° | 40° | 61° | — | — |
| 2012 | 86° | 53° | 70° | — | — |
| 2011 | 77° | 39° | 58° | — | — |
| 2010 | 79° | 37° | 58° | — | — |
| 2009 | 73° | 36° | 54° | — | — |
| 2008 | 85° | 49° | 67° | — | — |
| 2007 | 82° | 40° | 61° | — | — |
| 2006 | 87° | 42° | 65° | — | — |
| 2005 | 75° | 44° | 60° | — | — |
| 2004 | 80° | 43° | 61° | — | — |
| 2003 | 77° | 43° | 60° | — | — |
| 2002 | 86° | 39° | 63° | — | — |
| 2001 | 85° | 49° | 67° | — | — |
| 2000 | 73° | 44° | 59° | — | — |
| 1999 | 80° | 41° | 61° | — | — |
| 1998 | 76° | 28° | 52° | — | — |
| 1997 | 83° | 42° | 62° | — | — |
| 1996 | 84° | 37° | 61° | — | — |
| 1995coldest | 71° | 24° | 48° | — | — |
| 1994 | 78° | 50° | 64° | — | — |
| 1993 | 80° | 36° | 58° | — | — |
| 1992 | 80° | 33° | 57° | — | — |
| 1991 | 86° | 42° | 64° | — | — |
| 1990 | 85° | 40° | 62° | — | — |
| 1989 | 91° | 45° | 68° | — | — |
| 1988 | 70° | 54° | 62° | 0.15" | — |
| 1987 | 79° | 43° | 61° | — | — |
| 1986 | 82° | 42° | 62° | — | — |
| 1985 | 87° | 47° | 67° | — | — |
| 1984 | 79° | 36° | 57° | — | — |
| 1983 | 82° | 46° | 64° | — | — |
| 1982 | 76° | 39° | 57° | — | — |
| 1981 | 87° | 49° | 68° | — | — |
| 1980 | 85° | 47° | 66° | — | — |
| 1979 | 60° | 37° | 49° | — | — |
| 1978 | 85° | 39° | 62° | — | — |
| 1977 | 83° | 38° | 60° | — | — |
| 1976 | 84° | 39° | 62° | — | — |
| 1975 | 60° | 43° | 51° | 0.05" | — |
| 1974 | 88° | 46° | 67° | — | — |
| 1973 | 79° | 38° | 58° | — | — |
| 1972 | 78° | 35° | 57° | — | — |
| 1971 | 81° | 48° | 64° | — | — |
Flagstaff, AZ Temperature Range by Month
Average monthly highs and lows. The shaded band shows the typical daily temperature range.
Flagstaff, AZ Monthly Precipitation
Average rainfall and snowfall per month, in inches.
Flagstaff, AZ 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 Flagstaff, AZ
Most pleasant months in Flagstaff, AZ: May, June, July, August, September.