Weather on April 21
Nampa, ID
55 Years of Data
Avg High
67°F
Avg Low
38°F
Warmest
1994
69°F avg
Coldest
1985
39°F avg
About This Date
April 21st in Nampa, ID typically brings mild spring weather, with average highs around 67°F and lows near 38°F — a 29°F daily swing. Over 45 years of records, the warmest April 21st was in 1994 (69°F average), while the coldest was 1985 (39°F) — a 30°F range across recorded history. Rain or other precipitation has occurred on about 33% of April 21st dates historically, with the wettest April 21st recording 1.27" of rain.
Planning for April 21st in Nampa, ID? Great weather for outdoor activities. Consider bringing rain gear or an umbrella.
Warming Trend
0.7°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2015 | 77° | 39° | 58° | — | — |
| 2014 | 67° | 38° | 52° | — | — |
| 2013 | 65° | 35° | 50° | — | — |
| 2012 | 78° | 45° | 61° | — | — |
| 2011 | 55° | 30° | 43° | 0.66" | — |
| 2010 | 82° | 45° | 63° | 1.27" | — |
| 2009 | 88° | 49° | 68° | — | — |
| 2008 | 61° | 25° | 43° | — | — |
| 2007 | 62° | 32° | 47° | — | — |
| 2006 | 72° | 41° | 56° | — | — |
| 2005 | 55° | 44° | 50° | 0.03" | — |
| 2004 | 62° | 38° | 50° | 0.53" | — |
| 2003 | 73° | 40° | 56° | — | — |
| 2002 | 64° | 32° | 48° | — | — |
| 2001 | 58° | 41° | 49° | 0.15" | — |
| 2000 | 73° | 44° | 59° | 0.28" | — |
| 1999 | 67° | 36° | 51° | — | — |
| 1998 | 71° | 39° | 55° | — | — |
| 1997 | 64° | 38° | 51° | 0.18" | — |
| 1996 | 54° | 28° | 41° | — | — |
| 1995 | 48° | 34° | 41° | 0.38" | — |
| 1994warmest | 87° | 51° | 69° | — | — |
| 1993 | 64° | 34° | 49° | — | — |
| 1992 | 74° | 43° | 58° | — | — |
| 1991 | 67° | 44° | 55° | — | — |
| 1990 | 75° | 45° | 60° | 0.3" | — |
| 1989 | 82° | 48° | 65° | — | — |
| 1988 | 59° | 43° | 51° | 0.81" | — |
| 1987 | 66° | 29° | 47° | — | — |
| 1986 | 77° | 44° | 61° | — | — |
| 1985coldest | 45° | 33° | 39° | 0.1" | — |
| 1984 | 62° | 37° | 50° | — | — |
| 1983 | 70° | 46° | 58° | 0.25" | — |
| 1982 | 56° | 25° | 40° | — | — |
| 1981 | 59° | 40° | 49° | 0.43" | — |
| 1980 | 84° | 48° | 66° | — | — |
| 1979 | 64° | 28° | 46° | — | — |
| 1978 | 55° | 29° | 42° | 0.61" | — |
| 1977 | 68° | 32° | 50° | — | — |
| 1976 | 64° | 34° | 49° | — | — |
| 1975 | 68° | 34° | 51° | — | — |
| 1974 | 68° | 37° | 53° | — | — |
| 1973 | 67° | 35° | 51° | — | — |
| 1972 | 65° | 46° | 55° | 0.28" | — |
| 1971 | 64° | 41° | 53° | — | — |
45 years of data from NAMPA SUGAR FACTORY