Weather on August 15
Nampa, ID
55 Years of Data
Avg High
92°F
Avg Low
56°F
Warmest
1992
86°F avg
Coldest
1999
58°F avg
About This Date
August 15th in Nampa, ID typically brings hot summer weather, with average highs around 92°F and lows near 56°F — a 36°F daily swing. Over 44 years of records, the warmest August 15th was in 1992 (86°F average), while the coldest was 1999 (58°F) — a 28°F range across recorded history. Rain or other precipitation has occurred on about 11% of August 15th dates historically, with the wettest August 15th recording 1.19" of rain.
Planning for August 15th in Nampa, ID? Stay hydrated and seek shade during peak afternoon hours.
Warming Trend
1.0°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2014 | 84° | 62° | 73° | — | — |
| 2013 | 96° | 62° | 79° | — | — |
| 2012 | 97° | 58° | 77° | — | — |
| 2011 | 96° | 57° | 77° | — | — |
| 2010 | 88° | 55° | 71° | — | — |
| 2009 | 86° | 51° | 69° | — | — |
| 2008 | 97° | 66° | 81° | — | — |
| 2007 | 96° | 55° | 76° | — | — |
| 2006 | 94° | 55° | 74° | — | — |
| 2005 | 87° | 49° | 68° | — | — |
| 2004 | 96° | 60° | 78° | — | — |
| 2003 | 97° | 62° | 79° | — | — |
| 2002 | 97° | 59° | 78° | — | — |
| 2001 | 99° | 64° | 81° | — | — |
| 2000 | 92° | 51° | 71° | — | — |
| 1999coldest | 76° | 40° | 58° | — | — |
| 1998 | 102° | 63° | 82° | — | — |
| 1997 | 95° | 55° | 75° | — | — |
| 1996 | 101° | 64° | 82° | — | — |
| 1995 | 86° | 47° | 66° | — | — |
| 1994 | 105° | 58° | 81° | — | — |
| 1993 | 85° | 57° | 71° | 0.13" | — |
| 1992warmest | 100° | 72° | 86° | — | — |
| 1991 | 91° | 57° | 74° | — | — |
| 1990 | 104° | 60° | 82° | — | — |
| 1989 | 94° | 50° | 72° | — | — |
| 1988 | 91° | 51° | 71° | — | — |
| 1987 | 75° | 47° | 61° | — | — |
| 1986 | 93° | 56° | 74° | — | — |
| 1985 | 84° | 48° | 66° | — | — |
| 1984 | 95° | 63° | 79° | — | — |
| 1983 | 90° | 62° | 76° | 0.05" | — |
| 1982 | 88° | 56° | 72° | — | — |
| 1981 | 98° | 57° | 78° | — | — |
| 1980 | 88° | 51° | 69° | — | — |
| 1979 | 82° | 50° | 66° | 0.1" | — |
| 1978 | 85° | 45° | 65° | — | — |
| 1977 | 99° | 52° | 75° | — | — |
| 1976 | 72° | 56° | 64° | 0.33" | — |
| 1975 | 92° | 55° | 73° | — | — |
| 1974 | 90° | 46° | 68° | — | — |
| 1973 | 98° | 55° | 77° | — | — |
| 1972 | 86° | 60° | 73° | 1.19" | — |
| 1971 | 98° | 59° | 79° | — | — |
44 years of data from NAMPA SUGAR FACTORY