Weather on June 21
Nampa, ID
55 Years of Data
Avg High
85°F
Avg Low
52°F
Warmest
1988
80°F avg
Coldest
1989
58°F avg
About This Date
June 21st in Nampa, ID typically brings warm summer weather, with average highs around 85°F and lows near 52°F — a 33°F daily swing. Over 45 years of records, the warmest June 21st was in 1988 (80°F average), while the coldest was 1989 (58°F) — a 22°F range across recorded history. Rain or other precipitation has occurred on about 9% of June 21st dates historically.
Planning for June 21st in Nampa, ID? Stay hydrated and seek shade during peak afternoon hours.
Cooling Trend
0.7°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2015 | 89° | 56° | 72° | — | — |
| 2014 | 88° | 55° | 71° | — | — |
| 2013 | 71° | 45° | 58° | — | — |
| 2012 | 80° | 49° | 64° | — | — |
| 2011 | 81° | 48° | 64° | — | — |
| 2010 | 79° | 45° | 62° | 0.2" | — |
| 2009 | 79° | 54° | 66° | 0.3" | — |
| 2008 | 96° | 58° | 77° | — | — |
| 2007 | 95° | 59° | 77° | — | — |
| 2006 | 81° | 51° | 66° | — | — |
| 2005 | 95° | 60° | 78° | — | — |
| 2004 | 83° | 49° | 66° | — | — |
| 2003 | 72° | 49° | 60° | — | — |
| 2002 | 88° | 55° | 71° | — | — |
| 2001 | 92° | 55° | 73° | — | — |
| 2000 | 89° | 52° | 70° | — | — |
| 1999 | 94° | 54° | 74° | — | — |
| 1998 | 79° | 46° | 62° | — | — |
| 1997 | 78° | 45° | 61° | — | — |
| 1996 | 78° | 48° | 63° | — | — |
| 1995 | 72° | 47° | 59° | — | — |
| 1994 | 97° | 58° | 77° | — | — |
| 1993 | 99° | 57° | 78° | — | — |
| 1992 | 90° | 53° | 71° | — | — |
| 1991 | 75° | 49° | 62° | — | — |
| 1990 | 88° | 58° | 73° | — | — |
| 1989coldest | 69° | 46° | 58° | — | — |
| 1988warmest | 96° | 65° | 80° | — | — |
| 1987 | 90° | 55° | 72° | — | — |
| 1986 | 83° | 46° | 64° | — | — |
| 1985 | 91° | 52° | 71° | — | — |
| 1984 | 81° | 44° | 62° | — | — |
| 1983 | 72° | 48° | 60° | — | — |
| 1982 | 96° | 58° | 77° | — | — |
| 1981 | 80° | 47° | 63° | — | — |
| 1980 | 94° | 58° | 76° | — | — |
| 1979 | 82° | 51° | 67° | 0.15" | — |
| 1978 | 84° | 48° | 66° | 0.05" | — |
| 1977 | 81° | 54° | 67° | — | — |
| 1976 | 84° | 60° | 72° | — | — |
| 1975 | 80° | 50° | 65° | — | — |
| 1974 | 84° | 53° | 69° | — | — |
| 1973 | 100° | 56° | 78° | — | — |
| 1972 | 86° | 54° | 70° | — | — |
| 1971 | 99° | 56° | 77° | — | — |
45 years of data from NAMPA SUGAR FACTORY