Weather on December 18
Nampa, ID
55 Years of Data
About This Date
December 18th in Nampa, ID typically brings cold winter weather, with average highs around 39°F and lows near 21°F. Over 44 years of records, the warmest December 18th was in 1999 (42°F average), while the coldest was 1985 (10°F) — a 32°F range across recorded history. Precipitation has occurred on 18% of recorded December 18th dates, with snow falling 5% of the time.
Planning for December 18th in Nampa, ID? Bundle up with warm layers and protect extremities from the cold.
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2014 | 47° | 29° | 38° | — | — |
| 2013 | 22° | 18° | 20° | — | — |
| 2012 | 48° | 27° | 37° | — | — |
| 2011 | 41° | 16° | 28° | — | — |
| 2010 | 38° | 21° | 29° | 0.05" | 0.3" |
| 2009 | 42° | 31° | 36° | 0.05" | — |
| 2008 | 24° | 6° | 15° | — | — |
| 2007 | 47° | 33° | 40° | — | — |
| 2006 | 36° | 13° | 24° | — | — |
| 2005 | 27° | 5° | 16° | — | — |
| 2004 | 38° | 28° | 33° | — | — |
| 2003 | 45° | 27° | 36° | — | — |
| 2002 | 45° | 23° | 34° | — | — |
| 2001 | 43° | 23° | 33° | — | — |
| 2000 | 43° | 19° | 31° | — | — |
| 1999warmest | 48° | 35° | 42° | 0.05" | — |
| 1998 | 39° | 19° | 29° | — | — |
| 1997 | 45° | 32° | 38° | 0.13" | — |
| 1996 | 34° | 16° | 25° | — | — |
| 1995 | 43° | 23° | 33° | — | — |
| 1994 | 46° | 36° | 41° | — | — |
| 1993 | 39° | 31° | 35° | — | — |
| 1992 | 35° | 18° | 26° | 0.08" | 1" |
| 1991 | 40° | 17° | 28° | — | — |
| 1990 | 45° | 17° | 31° | — | — |
| 1989 | 47° | 14° | 30° | — | — |
| 1988 | 46° | 15° | 31° | — | — |
| 1987 | 35° | 20° | 27° | — | — |
| 1986 | 28° | 22° | 25° | — | — |
| 1985coldest | 20° | 0° | 10° | — | — |
| 1984 | 24° | 4° | 14° | — | — |
| 1983 | 37° | 24° | 31° | — | — |
| 1982 | 50° | 27° | 38° | — | — |
| 1981 | 45° | 26° | 35° | — | — |
| 1980 | 27° | 17° | 22° | — | — |
| 1979 | 45° | 16° | 30° | — | — |
| 1978 | 34° | 26° | 30° | 0.3" | — |
| 1977 | 48° | 30° | 39° | 0.36" | — |
| 1976 | 37° | 12° | 25° | — | — |
| 1975 | 27° | 17° | 22° | — | — |
| 1974 | 45° | 25° | 35° | — | — |
| 1973 | 50° | 32° | 41° | — | — |
| 1972 | 38° | 29° | 33° | 0.03" | — |
| 1971 | 37° | 18° | 27° | — | — |
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
Nampa, ID has no months that meet our "pleasant" threshold — every season has tradeoffs.