Weather on May 31
Nampa, ID
55 Years of Data
Avg High
78°F
Avg Low
48°F
Warmest
1986
83°F avg
Coldest
1988
47°F avg
About This Date
May 31st in Nampa, ID typically brings pleasant spring weather, with average highs around 78°F and lows near 48°F — a 30°F daily swing. Over 45 years of records, the warmest May 31st was in 1986 (83°F average), while the coldest was 1988 (47°F) — a 36°F range across recorded history. Rain or other precipitation has occurred on about 20% of May 31st dates historically, with the wettest May 31st recording 1.14" of rain.
Planning for May 31st in Nampa, ID? Great weather for outdoor activities.
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2015 | 85° | 55° | 70° | — | — |
| 2014 | 80° | 41° | 61° | — | — |
| 2013 | 69° | 43° | 56° | — | — |
| 2012 | 81° | 51° | 66° | — | — |
| 2011 | 70° | 46° | 58° | — | — |
| 2010 | 74° | 40° | 57° | — | — |
| 2009 | 93° | 65° | 79° | — | — |
| 2008 | 70° | 48° | 59° | — | — |
| 2007 | 86° | 52° | 69° | — | — |
| 2006 | 77° | 47° | 62° | — | — |
| 2005 | 82° | 51° | 67° | 0.03" | — |
| 2004 | 71° | 42° | 57° | — | — |
| 2003 | 76° | 54° | 65° | 0.41" | — |
| 2002 | 88° | 53° | 70° | — | — |
| 2001 | 80° | 51° | 66° | — | — |
| 2000 | 73° | 39° | 56° | — | — |
| 1999 | 72° | 45° | 58° | — | — |
| 1998 | 66° | 41° | 54° | 0.03" | — |
| 1997 | 91° | 60° | 76° | 0.38" | — |
| 1996 | 74° | 38° | 56° | — | — |
| 1995 | 90° | 55° | 72° | — | — |
| 1994 | 78° | 54° | 66° | — | — |
| 1993 | 86° | 56° | 71° | — | — |
| 1992 | 84° | 51° | 68° | — | — |
| 1991 | 65° | 45° | 55° | — | — |
| 1990 | 70° | 46° | 58° | 0.3" | — |
| 1989 | 74° | 42° | 58° | — | — |
| 1988coldest | 59° | 35° | 47° | — | — |
| 1987 | 75° | 50° | 63° | 0.25" | — |
| 1986warmest | 100° | 67° | 83° | — | — |
| 1985 | 66° | 45° | 55° | — | — |
| 1984 | 92° | 40° | 66° | — | — |
| 1983 | 91° | 61° | 76° | — | — |
| 1982 | 70° | 42° | 56° | — | — |
| 1981 | 80° | 40° | 60° | 1.14" | — |
| 1980 | 72° | 45° | 58° | — | — |
| 1979 | 73° | 37° | 55° | — | — |
| 1978 | 68° | 30° | 49° | — | — |
| 1977 | 81° | 46° | 63° | — | — |
| 1976 | 71° | 50° | 61° | 0.36" | — |
| 1975 | 86° | 55° | 71° | — | — |
| 1974 | 78° | 41° | 60° | — | — |
| 1973 | 88° | 58° | 73° | — | — |
| 1972 | 98° | 63° | 80° | — | — |
| 1971 | 64° | 46° | 55° | 0.2" | — |
45 years of data from NAMPA SUGAR FACTORY