Weather on December 19
Hillsboro, OR
55 Years of Data
Avg High
45°F
Avg Low
34°F
Warmest
1994
56°F avg
Coldest
1984
25°F avg
About This Date
December 19th in Hillsboro, OR typically brings chilly winter weather, with average highs around 45°F and lows near 34°F. Over 55 years of records, the warmest December 19th was in 1994 (56°F average), while the coldest was 1984 (25°F) — a 31°F range across recorded history. Precipitation has occurred on 67% of recorded December 19th dates, with snow falling 2% of the time (heaviest snowfall: 2.8"). The last decade has been 3.6°F warmer on this date compared to 20-30 years ago.
The last decade has been 3.6°F warmer on this date compared to 20-30 years ago.
Planning for December 19th in Hillsboro, OR? Bring layers as temperatures can vary throughout the day. Consider bringing rain gear or an umbrella.
Warming Trend
0.5°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 46° | 35° | 41° | 0.23" | — |
| 2024 | 54° | 41° | 47° | 0.03" | — |
| 2023 | 51° | 38° | 44° | 1.14" | — |
| 2022 | 41° | 34° | 37° | — | — |
| 2021 | 41° | 32° | 37° | 1.68" | — |
| 2020 | 53° | 44° | 49° | 1.22" | — |
| 2019 | 54° | 38° | 46° | 2.24" | — |
| 2018 | 53° | 40° | 46° | — | — |
| 2017 | 50° | 38° | 44° | 2.16" | — |
| 2016 | 44° | 28° | 36° | 1.98" | — |
| 2015 | 47° | 34° | 40° | 0.05" | — |
| 2014 | 51° | 41° | 46° | 0.3" | — |
| 2013 | 39° | 23° | 31° | — | — |
| 2012 | 47° | 36° | 41° | 1.47" | — |
| 2011 | 45° | 32° | 38° | — | — |
| 2010 | 43° | 34° | 38° | 0.2" | — |
| 2009 | 51° | 45° | 48° | 0.05" | — |
| 2008 | 33° | 24° | 29° | 0.08" | — |
| 2007 | 47° | 40° | 43° | 1.22" | — |
| 2006 | 32° | 30° | 31° | 0.03" | — |
| 2005 | 37° | 33° | 35° | 2.87" | — |
| 2004 | 50° | 32° | 41° | 0.05" | — |
| 2003 | 47° | 33° | 40° | 0.18" | — |
| 2002 | 45° | 38° | 41° | 0.46" | — |
| 2001 | 45° | 40° | 42° | 0.71" | — |
| 2000 | 44° | 35° | 40° | 0.48" | — |
| 1999 | 56° | 49° | 52° | — | — |
| 1998 | 35° | 20° | 27° | — | — |
| 1997 | 41° | 34° | 37° | 0.58" | — |
| 1996 | 44° | 28° | 36° | 0.13" | — |
| 1995 | 45° | 42° | 43° | 0.2" | — |
| 1994warmest | 60° | 51° | 56° | 0.97" | — |
| 1993 | 42° | 26° | 34° | — | — |
| 1992 | 36° | 28° | 32° | 0.43" | — |
| 1991 | 40° | 35° | 37° | 0.84" | — |
| 1990 | 43° | 25° | 34° | 0.86" | 2.8" |
| 1989 | 35° | 33° | 34° | — | — |
| 1988 | 51° | 23° | 37° | 0.25" | — |
| 1987 | 36° | 28° | 32° | — | — |
| 1986 | 37° | 31° | 34° | 0.66" | — |
| 1985 | 44° | 22° | 33° | — | — |
| 1984coldest | 34° | 16° | 25° | — | — |
| 1983 | 36° | 31° | 33° | — | — |
| 1982 | 48° | 32° | 40° | 0.48" | — |
| 1981 | 53° | 40° | 46° | 2.79" | — |
| 1980 | 42° | 30° | 36° | — | — |
| 1979 | 56° | 48° | 52° | 1.02" | — |
| 1978 | 36° | 29° | 32° | — | — |
| 1977 | 42° | 33° | 38° | — | — |
| 1976 | 53° | 27° | 40° | — | — |
| 1975 | 50° | 27° | 38° | — | — |
| 1974 | 49° | 45° | 47° | 0.3" | — |
| 1973 | 48° | 40° | 44° | 1.65" | — |
| 1972 | 57° | 48° | 53° | 0.99" | — |
| 1971 | 43° | 28° | 35° | — | — |
55 years of data from HILLSBORO