Weather on March 18
Greeley, CO
55 Years of Data
Avg High
58°F
Avg Low
29°F
Warmest
2026
63°F avg
Coldest
1983
25°F avg
About This Date
March 18th in Greeley, CO typically brings cool spring weather, with average highs around 58°F and lows near 29°F — a 29°F daily swing. Over 56 years of records, the warmest March 18th was in 2026 (63°F average), while the coldest was 1983 (25°F) — a 38°F range across recorded history. Precipitation has occurred on 25% of recorded March 18th dates, with snow falling 14% of the time (heaviest snowfall: 5"). The last decade has been 4.8°F warmer on this date compared to 20-30 years ago.
The last decade has been 4.8°F warmer on this date compared to 20-30 years ago.
Planning for March 18th in Greeley, CO? Bring layers as temperatures can vary throughout the day.
Warming Trend
1.2°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2026warmest | 88° | 39° | 63° | — | — |
| 2025 | 72° | 42° | 57° | — | — |
| 2024 | 66° | 29° | 47° | — | — |
| 2023 | 49° | 18° | 33° | — | — |
| 2022 | 56° | 26° | 41° | — | — |
| 2021 | 45° | 23° | 34° | — | — |
| 2020 | 66° | 30° | 48° | — | — |
| 2019 | 51° | 26° | 39° | — | — |
| 2018 | 63° | 31° | 47° | — | — |
| 2017 | 82° | 35° | 59° | — | — |
| 2016 | 34° | 22° | 28° | 0.69" | — |
| 2015 | 66° | 33° | 50° | — | — |
| 2014 | 66° | 30° | 48° | — | — |
| 2013 | 54° | 30° | 42° | — | — |
| 2012 | 78° | 39° | 59° | — | — |
| 2011 | 61° | 33° | 47° | 0.1" | — |
| 2010 | 73° | 31° | 52° | — | — |
| 2009 | 73° | 36° | 54° | — | — |
| 2008 | 60° | 25° | 42° | — | — |
| 2007 | 82° | 35° | 59° | — | — |
| 2006 | 56° | 20° | 38° | 0.03" | — |
| 2005 | 49° | 29° | 39° | 0.03" | — |
| 2004 | 73° | 35° | 54° | — | — |
| 2003 | 38° | 30° | 34° | 2.08" | 4" |
| 2002 | 47° | 35° | 41° | — | — |
| 2001 | 53° | 22° | 37° | — | — |
| 2000 | 46° | 29° | 37° | — | — |
| 1999 | 59° | 25° | 42° | — | — |
| 1998 | 35° | 30° | 33° | 1.3" | 5" |
| 1997 | 66° | 33° | 50° | — | — |
| 1996 | 43° | 29° | 36° | — | — |
| 1995 | 73° | 33° | 53° | — | — |
| 1994 | 72° | 33° | 52° | — | — |
| 1993 | 58° | 25° | 41° | — | — |
| 1992 | 51° | 33° | 42° | 0.28" | — |
| 1991 | 65° | 25° | 45° | — | — |
| 1990 | 46° | 31° | 38° | 0.13" | 0.5" |
| 1989 | 60° | 22° | 41° | — | — |
| 1988 | 52° | 15° | 33° | — | — |
| 1987 | 57° | 29° | 43° | — | — |
| 1986 | 43° | 29° | 36° | — | — |
| 1985 | 66° | 30° | 48° | — | — |
| 1984 | 39° | 27° | 33° | 0.76" | 2" |
| 1983coldest | 29° | 22° | 25° | 0.25" | 1.5" |
| 1982 | 46° | 29° | 37° | — | — |
| 1981 | 47° | 27° | 37° | 0.41" | 1.5" |
| 1980 | 64° | 23° | 44° | — | — |
| 1979 | 40° | 32° | 36° | 2.21" | 3.5" |
| 1978 | 71° | 32° | 52° | — | — |
| 1977 | 45° | 28° | 36° | 0.51" | 2" |
| 1976 | 70° | 33° | 51° | — | — |
| 1975 | 65° | 27° | 46° | — | — |
| 1974 | 73° | 40° | 56° | — | — |
| 1973 | 58° | 27° | 42° | 0.69" | — |
| 1972 | 76° | 27° | 51° | — | — |
| 1971 | 38° | 23° | 30° | — | — |
56 years of data from GREELEY UNC