Weather on September 1
Nampa, ID
55 Years of Data
Avg High
84°F
Avg Low
50°F
Warmest
2004
78°F avg
Coldest
1977
54°F avg
About This Date
September 1st in Nampa, ID typically brings warm fall weather, with average highs around 84°F and lows near 50°F — a 34°F daily swing. Over 44 years of records, the warmest September 1st was in 2004 (78°F average), while the coldest was 1977 (54°F) — a 24°F range across recorded history. Rain or other precipitation has occurred on about 7% of September 1st dates historically, with the wettest September 1st recording 0.99" of rain.
Planning for September 1st in Nampa, ID? Stay hydrated and seek shade during peak afternoon hours.
Warming Trend
1.4°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2014 | 92° | 50° | 71° | — | — |
| 2013 | 92° | 60° | 76° | — | — |
| 2012 | 89° | 52° | 70° | — | — |
| 2011 | 80° | 48° | 64° | — | — |
| 2010 | 75° | 50° | 63° | — | — |
| 2009 | 89° | 57° | 73° | — | — |
| 2008 | 70° | 50° | 60° | — | — |
| 2007 | 94° | 59° | 76° | 0.46" | — |
| 2006 | 75° | 41° | 58° | — | — |
| 2005 | 81° | 49° | 65° | — | — |
| 2004warmest | 98° | 58° | 78° | — | — |
| 2003 | 90° | 52° | 71° | — | — |
| 2002 | 88° | 55° | 71° | — | — |
| 2001 | 93° | 55° | 74° | — | — |
| 2000 | 77° | 51° | 64° | — | — |
| 1999 | 68° | 42° | 55° | — | — |
| 1998 | 96° | 53° | 75° | — | — |
| 1997 | 88° | 61° | 74° | — | — |
| 1996 | 86° | 44° | 65° | — | — |
| 1995 | 90° | 50° | 70° | — | — |
| 1994 | 87° | 47° | 67° | — | — |
| 1993 | 85° | 45° | 65° | — | — |
| 1992 | 88° | 53° | 70° | — | — |
| 1991 | 94° | 54° | 74° | — | — |
| 1990 | 87° | 45° | 66° | — | — |
| 1989 | 80° | 47° | 63° | — | — |
| 1988 | 90° | 49° | 69° | — | — |
| 1987 | 94° | 55° | 74° | — | — |
| 1986 | 77° | 54° | 65° | — | — |
| 1985 | 78° | 45° | 61° | — | — |
| 1984 | 66° | 43° | 54° | 0.99" | — |
| 1983 | 93° | 55° | 74° | 0.1" | — |
| 1982 | 82° | 46° | 64° | — | — |
| 1981 | 80° | 45° | 62° | — | — |
| 1980 | 71° | 38° | 54° | — | — |
| 1979 | 76° | 47° | 61° | — | — |
| 1978 | 88° | 49° | 68° | — | — |
| 1977coldest | 70° | 39° | 54° | — | — |
| 1976 | 101° | 54° | 77° | — | — |
| 1975 | 74° | 48° | 61° | — | — |
| 1974 | 91° | 55° | 73° | — | — |
| 1973 | 73° | 47° | 60° | — | — |
| 1972 | 87° | 46° | 67° | — | — |
| 1971 | 85° | 43° | 64° | — | — |
44 years of data from NAMPA SUGAR FACTORY