Weather on December 11
Hillsboro, OR
55 Years of Data
Avg High
47°F
Avg Low
34°F
Warmest
2025
55°F avg
Coldest
1972
14°F avg
About This Date
December 11th in Hillsboro, OR typically brings chilly winter weather, with average highs around 47°F and lows near 34°F. Over 55 years of records, the warmest December 11th was in 2025 (55°F average), while the coldest was 1972 (14°F) — a 41°F range across recorded history. Precipitation has occurred on 60% of recorded December 11th dates, with snow falling 2% of the time (heaviest snowfall: 1.3"). The last decade has been 1.3°F cooler on this date compared to 20-30 years ago.
The last decade has been 1.3°F cooler on this date compared to 20-30 years ago.
Planning for December 11th in Hillsboro, OR? Bring layers as temperatures can vary throughout the day. Consider bringing rain gear or an umbrella.
Warming Trend
0.8°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025warmest | 61° | 49° | 55° | — | — |
| 2024 | 45° | 31° | 38° | 0.03" | — |
| 2023 | 54° | 37° | 45° | — | — |
| 2022 | 45° | 33° | 39° | — | — |
| 2021 | 49° | 36° | 42° | 2.59" | — |
| 2020 | 42° | 31° | 37° | 1.02" | — |
| 2019 | 49° | 44° | 46° | 0.76" | — |
| 2018 | 51° | 42° | 47° | 1.3" | — |
| 2017 | 46° | 22° | 34° | — | — |
| 2016 | 48° | 38° | 43° | 1.7" | — |
| 2015 | 45° | 42° | 43° | 0.97" | — |
| 2014 | 61° | 39° | 50° | 0.43" | — |
| 2013 | 38° | 19° | 29° | — | — |
| 2012 | 46° | 37° | 42° | 0.43" | — |
| 2011 | 42° | 27° | 35° | — | — |
| 2010 | 57° | 39° | 48° | 3.12" | — |
| 2009 | 35° | 8° | 22° | — | — |
| 2008 | 51° | 29° | 40° | — | — |
| 2007 | 37° | 27° | 32° | — | — |
| 2006 | 54° | 46° | 50° | 1.68" | — |
| 2005 | 45° | 22° | 33° | — | — |
| 2004 | 55° | 44° | 50° | 0.2" | — |
| 2003 | 47° | 40° | 43° | 0.23" | — |
| 2002 | 52° | 43° | 47° | 2.03" | — |
| 2001 | 48° | — | — | 0.05" | — |
| 2000 | 38° | 31° | 34° | — | — |
| 1999 | 57° | 52° | 54° | — | — |
| 1998 | 53° | 50° | 52° | 0.79" | — |
| 1997 | 47° | 33° | 40° | — | — |
| 1996 | 46° | 38° | 42° | 1.09" | — |
| 1995 | 53° | 46° | 50° | 1.8" | — |
| 1994 | 43° | 37° | 40° | 1.55" | — |
| 1993 | 54° | 44° | 49° | 4.01" | — |
| 1992 | 48° | 33° | 41° | 0.2" | — |
| 1991 | 38° | 30° | 34° | 0.05" | — |
| 1990 | 51° | 35° | 43° | 0.38" | — |
| 1989 | 46° | 29° | 37° | — | — |
| 1988 | 46° | 43° | 44° | — | — |
| 1987 | 51° | 32° | 42° | 1.04" | — |
| 1986 | 45° | 26° | 35° | — | — |
| 1985 | 44° | 22° | 33° | — | — |
| 1984 | 40° | 31° | 35° | 0.03" | — |
| 1983 | 50° | 38° | 44° | 0.69" | — |
| 1982 | 47° | 26° | 36° | — | — |
| 1981 | 49° | 37° | 43° | 0.46" | — |
| 1980 | 46° | 29° | 37° | — | — |
| 1979 | 48° | 29° | 38° | — | — |
| 1978 | 58° | 33° | 45° | 0.3" | — |
| 1977 | 56° | 49° | 52° | 1.83" | — |
| 1976 | 36° | 33° | 34° | — | — |
| 1975 | 41° | 32° | 37° | — | — |
| 1974 | 55° | 38° | 46° | 0.08" | — |
| 1973 | 50° | 39° | 45° | 1.35" | — |
| 1972coldest | 23° | 5° | 14° | 0.05" | 1.3" |
| 1971 | 40° | 31° | 35° | 0.74" | — |
55 years of data from HILLSBORO