Weather on March 21
Nampa, ID
55 Years of Data
About This Date
March 21st in Nampa, ID typically brings mild spring weather, with average highs around 60°F and lows near 32°F — a 28°F daily swing. Over 45 years of records, the warmest March 21st was in 1999 (58°F average), while the coldest was 1982 (35°F) — a 23°F range across recorded history. Precipitation has occurred on 29% of recorded March 21st dates, with snow falling 2% of the time.
Planning for March 21st in Nampa, ID? Great weather for outdoor activities.
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2015 | 70° | 33° | 51° | — | — |
| 2014 | 51° | 25° | 38° | — | — |
| 2013 | 65° | 34° | 49° | — | — |
| 2012 | 44° | 31° | 37° | 0.1" | 0.1" |
| 2011 | 62° | 38° | 50° | 0.03" | — |
| 2010 | 63° | 33° | 48° | — | — |
| 2009 | 72° | 42° | 57° | — | — |
| 2008 | 51° | 31° | 41° | — | — |
| 2007 | 58° | 32° | 45° | — | — |
| 2006 | 55° | 27° | 41° | 0.05" | — |
| 2005 | 60° | 42° | 51° | 0.13" | — |
| 2004 | 68° | 34° | 51° | — | — |
| 2003 | 62° | 36° | 49° | — | — |
| 2002 | 66° | 36° | 51° | — | — |
| 2001 | 64° | 39° | 52° | — | — |
| 2000 | 51° | 27° | 39° | — | — |
| 1999warmest | 71° | 44° | 58° | — | — |
| 1998 | 68° | 37° | 53° | — | — |
| 1997 | 58° | 31° | 44° | 0.1" | — |
| 1996 | 64° | 33° | 49° | — | — |
| 1995 | 62° | 33° | 48° | 0.08" | — |
| 1994 | 58° | 22° | 40° | — | — |
| 1993 | 57° | 31° | 44° | — | — |
| 1992 | 65° | 29° | 47° | — | — |
| 1991 | 55° | 28° | 42° | — | — |
| 1990 | 64° | 34° | 49° | — | — |
| 1989 | 55° | 34° | 44° | 0.05" | — |
| 1988 | 72° | 40° | 56° | — | — |
| 1987 | 55° | 25° | 40° | — | — |
| 1986 | 66° | 39° | 53° | — | — |
| 1985 | 63° | 31° | 47° | 0.04" | — |
| 1984 | 67° | 38° | 52° | 0.03" | — |
| 1983 | 52° | 30° | 41° | — | — |
| 1982coldest | 49° | 22° | 35° | — | — |
| 1981 | 42° | 30° | 36° | 0.89" | — |
| 1980 | 55° | 30° | 43° | 0.47" | — |
| 1979 | 59° | 30° | 45° | — | — |
| 1978 | 73° | 34° | 53° | — | — |
| 1977 | 51° | 23° | 37° | — | — |
| 1976 | 59° | 23° | 41° | — | — |
| 1975 | 48° | 30° | 39° | 0.12" | — |
| 1974 | 58° | 21° | 39° | — | — |
| 1973 | 53° | 40° | 46° | 0.67" | — |
| 1972 | 68° | 39° | 54° | — | — |
| 1971 | 60° | 31° | 45° | — | — |
Nampa, ID Temperature Range by Month
Average monthly highs and lows. The shaded band shows the typical daily temperature range.
Nampa, ID Monthly Precipitation
Average rainfall and snowfall per month, in inches.
Nampa, ID 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 Nampa, ID
Most pleasant months in Nampa, ID: April, May, September, October.
What to expect on March 21st
This page shows what actually happened each year. For the odds — typical high and low, and how often it stays dry — see the climatological outlook for this date.
March 21st outlook →