Weather on June 18
Nampa, ID
55 Years of Data
Avg High
83°F
Avg Low
51°F
Warmest
1986
80°F avg
Coldest
1979
50°F avg
About This Date
June 18th in Nampa, ID typically brings warm summer weather, with average highs around 83°F and lows near 51°F — a 32°F daily swing. Over 45 years of records, the warmest June 18th was in 1986 (80°F average), while the coldest was 1979 (50°F) — a 30°F range across recorded history. Rain or other precipitation has occurred on about 22% of June 18th dates historically, with the wettest June 18th recording 1.02" of rain.
Planning for June 18th 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 |
|---|---|---|---|---|---|
| 2015 | 95° | 59° | 77° | — | — |
| 2014 | 68° | 44° | 56° | 0.1" | — |
| 2013 | 93° | 60° | 77° | — | — |
| 2012 | 95° | 54° | 74° | — | — |
| 2011 | 80° | 50° | 65° | — | — |
| 2010 | 69° | 43° | 56° | — | — |
| 2009 | 84° | 59° | 72° | — | — |
| 2008 | 90° | 56° | 73° | — | — |
| 2007 | 90° | 48° | 69° | — | — |
| 2006 | 80° | 50° | 65° | — | — |
| 2005 | 71° | 52° | 61° | 0.03" | — |
| 2004 | 86° | 51° | 69° | — | — |
| 2003 | 96° | 61° | 78° | — | — |
| 2002 | 82° | 58° | 70° | 0.08" | — |
| 2001 | 84° | 45° | 64° | — | — |
| 2000 | 85° | 49° | 67° | — | — |
| 1999 | 91° | 61° | 76° | — | — |
| 1998 | 80° | 52° | 66° | — | — |
| 1997 | 95° | 57° | 76° | 0.18" | — |
| 1996 | 78° | 38° | 58° | — | — |
| 1995 | 70° | 52° | 61° | 1.02" | — |
| 1994 | 82° | 47° | 64° | — | — |
| 1993 | 80° | 50° | 65° | — | — |
| 1992 | 81° | 64° | 72° | — | — |
| 1991 | 75° | 41° | 58° | — | — |
| 1990 | 80° | 54° | 67° | — | — |
| 1989 | 88° | 46° | 67° | — | — |
| 1988 | 98° | 59° | 79° | 0.33" | — |
| 1987 | 74° | 50° | 62° | 0.33" | — |
| 1986warmest | 96° | 64° | 80° | — | — |
| 1985 | 91° | 52° | 71° | — | — |
| 1984 | 82° | 49° | 65° | — | — |
| 1983 | 93° | 48° | 71° | — | — |
| 1982 | 91° | 56° | 73° | — | — |
| 1981 | 75° | 42° | 59° | — | — |
| 1980 | 89° | 58° | 73° | — | — |
| 1979coldest | 56° | 44° | 50° | 0.23" | — |
| 1978 | 81° | 46° | 63° | — | — |
| 1977 | 88° | 54° | 71° | — | — |
| 1976 | 85° | 49° | 67° | — | — |
| 1975 | 62° | 47° | 54° | 0.18" | — |
| 1974 | 98° | 61° | 79° | — | — |
| 1973 | 70° | 40° | 55° | 0.03" | — |
| 1972 | 81° | 43° | 62° | — | — |
| 1971 | 79° | 54° | 66° | — | — |
45 years of data from NAMPA SUGAR FACTORY