Weather on March 21
Oklahoma City, OK
55 Years of Data
About This Date
March 21st in Oklahoma City, OK typically brings mild spring weather, with average highs around 66°F and lows near 42°F. Over 56 years of records, the warmest March 21st was in 2026 (74°F average), while the coldest was 1974 (31°F) — a 43°F range across recorded history. Precipitation has occurred on 18% of recorded March 21st dates, with snow falling 2% of the time. The last decade has been 5.6°F warmer on this date compared to 20-30 years ago.
The last decade has been 5.6°F warmer on this date compared to 20-30 years ago.
Planning for March 21st in Oklahoma City, OK? Great weather for outdoor activities.
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2026warmest | 97° | 51° | 74° | — | — |
| 2025 | 72° | 46° | 59° | — | — |
| 2024 | 63° | 54° | 58° | 2.62" | — |
| 2023 | 73° | 45° | 59° | 0.13" | — |
| 2022 | 63° | 51° | 57° | 3.73" | — |
| 2021 | 70° | 46° | 58° | — | — |
| 2020 | 55° | 29° | 42° | 0.46" | — |
| 2019 | 67° | 38° | 52° | — | — |
| 2018 | 67° | 32° | 49° | — | — |
| 2017 | 83° | 55° | 69° | — | — |
| 2016 | 69° | 33° | 51° | — | — |
| 2015 | 66° | 43° | 54° | — | — |
| 2014 | 73° | 49° | 61° | — | — |
| 2013 | 58° | 41° | 49° | — | — |
| 2012 | 65° | 44° | 54° | 0.08" | — |
| 2011 | 76° | 62° | 69° | — | — |
| 2010 | 45° | 26° | 36° | — | — |
| 2009 | 71° | 56° | 63° | — | — |
| 2008 | 70° | 43° | 56° | — | — |
| 2007 | 81° | 64° | 72° | — | — |
| 2006 | 41° | 35° | 38° | — | — |
| 2005 | 70° | 46° | 58° | 0.41" | — |
| 2004 | 57° | 45° | 51° | — | — |
| 2003 | 59° | 39° | 49° | — | — |
| 2002 | 43° | 26° | 34° | — | — |
| 2001 | 73° | 41° | 57° | — | — |
| 2000 | 61° | 50° | 55° | 0.1" | — |
| 1999 | 68° | 37° | 53° | — | — |
| 1998 | 56° | 27° | 41° | — | — |
| 1997 | 89° | 55° | 72° | — | — |
| 1996 | 65° | 26° | 45° | — | — |
| 1995 | 82° | 44° | 63° | — | — |
| 1994 | 66° | 42° | 54° | — | — |
| 1993 | 61° | 40° | 50° | — | — |
| 1992 | 69° | 45° | 57° | — | — |
| 1991 | 80° | 54° | 67° | — | — |
| 1990 | 75° | 45° | 60° | — | — |
| 1989 | 49° | 30° | 39° | — | — |
| 1988 | 81° | 46° | 63° | — | — |
| 1987 | 68° | 48° | 58° | — | — |
| 1986 | 59° | 31° | 45° | — | — |
| 1985 | 49° | 45° | 47° | 0.2" | — |
| 1984 | 63° | 39° | 51° | — | — |
| 1983 | 47° | 25° | 36° | — | — |
| 1982 | 57° | 37° | 47° | — | — |
| 1981 | 67° | 47° | 57° | — | — |
| 1980 | 63° | 29° | 46° | — | — |
| 1979 | 61° | 45° | 53° | — | — |
| 1978 | 74° | 43° | 58° | — | — |
| 1977 | 69° | 37° | 53° | — | — |
| 1976 | 60° | 37° | 49° | — | — |
| 1975 | 80° | 56° | 68° | — | — |
| 1974coldest | 43° | 20° | 31° | 0.64" | 1" |
| 1973 | 55° | 36° | 45° | — | — |
| 1972 | 78° | 48° | 63° | 1.22" | — |
| 1971 | 72° | 51° | 61° | — | — |
Oklahoma City, OK Temperature Range by Month
Average monthly highs and lows. The shaded band shows the typical daily temperature range.
Oklahoma City, OK Monthly Precipitation
Average rainfall and snowfall per month, in inches.
Oklahoma City, OK 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 Oklahoma City, OK
Oklahoma City, OK has no months that meet our "pleasant" threshold — every season has tradeoffs.