Weather on December 21
Nampa, ID
55 Years of Data
Avg High
37°F
Avg Low
21°F
Warmest
1972
43°F avg
Coldest
1990
0°F avg
About This Date
December 21st in Nampa, ID typically brings cold winter weather, with average highs around 37°F and lows near 21°F. Over 44 years of records, the warmest December 21st was in 1972 (43°F average), while the coldest was 1990 (0°F) — a 43°F range across recorded history. Precipitation has occurred on 43% of recorded December 21st dates, with snow falling 7% of the time (heaviest snowfall: 8").
Planning for December 21st in Nampa, ID? Bundle up with warm layers and protect extremities from the cold. Consider bringing rain gear or an umbrella.
Warming Trend
0.4°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2014 | 46° | 40° | 43° | 1.22" | — |
| 2013 | 32° | 21° | 27° | 0.53" | — |
| 2012 | 43° | 27° | 35° | — | — |
| 2011 | 43° | 16° | 29° | — | — |
| 2010 | 40° | 24° | 32° | — | — |
| 2009 | 40° | 27° | 33° | 0.03" | — |
| 2008 | 29° | 20° | 24° | 0.38" | 2" |
| 2007 | 45° | 26° | 35° | — | — |
| 2006 | 34° | 15° | 24° | — | — |
| 2005 | 35° | 28° | 32° | 0.03" | — |
| 2004 | 39° | 22° | 30° | — | — |
| 2003 | 42° | 31° | 36° | 0.15" | — |
| 2002 | 45° | 31° | 38° | 0.25" | — |
| 2001 | 49° | 26° | 37° | — | — |
| 2000 | 33° | 22° | 27° | 0.03" | 0.2" |
| 1999 | 47° | 27° | 37° | — | — |
| 1998 | 20° | -4° | 8° | — | — |
| 1997 | 37° | 23° | 30° | — | — |
| 1996 | 30° | 22° | 26° | 1.45" | 8" |
| 1995 | 35° | 19° | 27° | — | — |
| 1994 | 42° | 28° | 35° | — | — |
| 1993 | 35° | 17° | 26° | — | — |
| 1992 | 35° | 16° | 25° | — | — |
| 1991 | 40° | 17° | 28° | — | — |
| 1990coldest | 9° | -10° | 0° | — | — |
| 1989 | 35° | 14° | 25° | — | — |
| 1988 | 39° | 22° | 30° | 0.2" | — |
| 1987 | 46° | 29° | 37° | 0.08" | — |
| 1986 | 29° | 23° | 26° | — | — |
| 1985 | 13° | 0° | 6° | 0.03" | — |
| 1984 | 10° | 1° | 6° | 0.15" | — |
| 1983 | 21° | 6° | 14° | 0.03" | — |
| 1982 | 49° | 34° | 41° | 0.43" | — |
| 1981 | 48° | 37° | 43° | 0.74" | — |
| 1980 | 25° | 20° | 22° | — | — |
| 1979 | 51° | 32° | 42° | 0.15" | — |
| 1978 | 42° | 24° | 33° | — | — |
| 1977 | 31° | 18° | 24° | — | — |
| 1976 | 33° | 7° | 20° | — | — |
| 1975 | 23° | 19° | 21° | — | — |
| 1974 | 53° | 33° | 43° | — | — |
| 1973 | 45° | 36° | 40° | 0.66" | — |
| 1972warmest | 51° | 35° | 43° | 0.08" | — |
| 1971 | 42° | 22° | 32° | — | — |
44 years of data from NAMPA SUGAR FACTORY