Weather on August 31
Nampa, ID
55 Years of Data
About This Date
August 31st in Nampa, ID typically brings warm summer weather, with average highs around 86°F and lows near 51°F — a 35°F daily swing. Over 44 years of records, the warmest August 31st was in 2007 (78°F average), while the coldest was 1977 (55°F) — a 23°F range across recorded history. Rain or other precipitation has occurred on about 2% of August 31st dates historically.
Planning for August 31st in Nampa, ID? Stay hydrated and seek shade during peak afternoon hours.
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2014 | 91° | 51° | 71° | — | — |
| 2013 | 88° | 60° | 74° | — | — |
| 2012 | 78° | 50° | 64° | — | — |
| 2011 | 92° | 58° | 75° | — | — |
| 2010 | 73° | 44° | 59° | — | — |
| 2009 | 89° | 57° | 73° | — | — |
| 2008 | 89° | 55° | 72° | — | — |
| 2007warmest | 97° | 60° | 78° | — | — |
| 2006 | 73° | 42° | 58° | — | — |
| 2005 | 76° | 47° | 61° | — | — |
| 2004 | 93° | 56° | 74° | — | — |
| 2003 | 89° | 54° | 71° | — | — |
| 2002 | 81° | 56° | 68° | — | — |
| 2001 | 96° | 54° | 75° | — | — |
| 2000 | 86° | 50° | 68° | — | — |
| 1999 | 90° | 41° | 65° | — | — |
| 1998 | 93° | 52° | 72° | — | — |
| 1997 | 92° | 52° | 72° | — | — |
| 1996 | 90° | 57° | 73° | — | — |
| 1995 | 86° | 46° | 66° | — | — |
| 1994 | 83° | 46° | 64° | — | — |
| 1993 | 80° | 41° | 61° | — | — |
| 1992 | 88° | 60° | 74° | — | — |
| 1991 | 92° | 48° | 70° | — | — |
| 1990 | 84° | 40° | 62° | — | — |
| 1989 | 75° | 47° | 61° | — | — |
| 1988 | 89° | 49° | 69° | — | — |
| 1987 | 91° | 51° | 71° | — | — |
| 1986 | 85° | 50° | 67° | — | — |
| 1985 | 86° | 49° | 67° | — | — |
| 1984 | 85° | 53° | 69° | — | — |
| 1983 | 92° | 53° | 72° | — | — |
| 1982 | 79° | 48° | 63° | — | — |
| 1981 | 84° | 45° | 64° | — | — |
| 1980 | 78° | 44° | 61° | — | — |
| 1979 | 70° | 52° | 61° | 0.3" | — |
| 1978 | — | 50° | — | — | — |
| 1977coldest | 73° | 37° | 55° | — | — |
| 1976 | 96° | 52° | 74° | — | — |
| 1975 | 81° | 48° | 64° | — | — |
| 1974 | 96° | 55° | 76° | — | — |
| 1973 | 86° | 55° | 71° | — | — |
| 1972 | 88° | 52° | 70° | — | — |
| 1971 | 90° | 60° | 75° | — | — |
Nampa, ID Temperature Range by Month
Average monthly highs and lows. The shaded band shows the typical daily temperature range.
Nampa, ID Monthly Precipitation
Average rainfall and snowfall per month, in inches.
Nampa, ID Daily Temperature Calendar
Average daily high temperature for every day of the year. Each cell is the climatological mean for that calendar day across 55 years of NOAA data.
Best Time to Visit Nampa, ID
Most pleasant months in Nampa, ID: April, May, September, October.
What to expect on August 31st
This page shows what actually happened each year. For the odds — typical high and low, and how often it stays dry — see the climatological outlook for this date.
August 31st outlook →