Weather on May 15
Nampa, ID
55 Years of Data
Avg High
76°F
Avg Low
45°F
Warmest
1997
76°F avg
Coldest
1985
48°F avg
About This Date
May 15th in Nampa, ID typically brings pleasant spring weather, with average highs around 76°F and lows near 45°F — a 31°F daily swing. Over 45 years of records, the warmest May 15th was in 1997 (76°F average), while the coldest was 1985 (48°F) — a 28°F range across recorded history. Rain or other precipitation has occurred on about 29% of May 15th dates historically, with the wettest May 15th recording 1.12" of rain.
Planning for May 15th in Nampa, ID? Great weather for outdoor activities.
Warming Trend
0.5°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2015 | 74° | 46° | 60° | 0.15" | — |
| 2014 | 81° | 43° | 62° | — | — |
| 2013 | 78° | 49° | 63° | — | — |
| 2012 | 87° | 52° | 69° | — | — |
| 2011 | 82° | 48° | 65° | — | — |
| 2010 | 76° | 42° | 59° | — | — |
| 2009 | 74° | 39° | 56° | 0.15" | — |
| 2008 | 76° | 55° | 65° | — | — |
| 2007 | 78° | 42° | 60° | — | — |
| 2006 | 89° | 51° | 70° | — | — |
| 2005 | 78° | 56° | 67° | 0.1" | — |
| 2004 | 75° | 42° | 59° | — | — |
| 2003 | 84° | 50° | 67° | — | — |
| 2002 | 70° | 43° | 56° | — | — |
| 2001 | 77° | 49° | 63° | 0.46" | — |
| 2000 | 76° | 40° | 58° | — | — |
| 1999 | 61° | 35° | 48° | — | — |
| 1998 | 61° | 40° | 50° | 0.15" | — |
| 1997warmest | 95° | 58° | 76° | — | — |
| 1996 | 77° | 55° | 66° | 1.12" | — |
| 1995 | 70° | 40° | 55° | — | — |
| 1994 | 79° | 40° | 59° | — | — |
| 1993 | 85° | 51° | 68° | — | — |
| 1992 | 87° | 41° | 64° | — | — |
| 1991 | 68° | 40° | 54° | — | — |
| 1990 | 65° | 35° | 50° | — | — |
| 1989 | 72° | 44° | 58° | — | — |
| 1988 | 69° | 42° | 56° | — | — |
| 1987 | 90° | 58° | 74° | — | — |
| 1986 | 61° | 37° | 49° | — | — |
| 1985coldest | 55° | 41° | 48° | 0.23" | — |
| 1984 | 63° | 41° | 52° | 0.28" | — |
| 1983 | 70° | 42° | 56° | 0.15" | — |
| 1982 | 76° | 44° | 60° | 0.05" | — |
| 1981 | 61° | 41° | 51° | 0.53" | — |
| 1980 | 73° | 45° | 59° | 0.38" | — |
| 1979 | 85° | 44° | 64° | — | — |
| 1978 | 83° | 53° | 68° | — | — |
| 1977 | 68° | 39° | 54° | — | — |
| 1976 | 75° | 41° | 58° | — | — |
| 1975 | 85° | 57° | 71° | — | — |
| 1974 | 63° | 37° | 50° | 0.13" | — |
| 1973 | 94° | 50° | 72° | — | — |
| 1972 | 88° | 54° | 71° | — | — |
| 1971 | 82° | 44° | 63° | — | — |
45 years of data from NAMPA SUGAR FACTORY