Weather on March 23
Hillsboro, OR
55 Years of Data
Avg High
56°F
Avg Low
38°F
Warmest
1998
59°F avg
Coldest
2009
37°F avg
About This Date
March 23rd in Hillsboro, OR typically brings cool spring weather, with average highs around 56°F and lows near 38°F. Over 56 years of records, the warmest March 23rd was in 1998 (59°F average), while the coldest was 2009 (37°F) — a 22°F range across recorded history. Rain or other precipitation has occurred on about 66% of March 23rd dates historically, with the wettest March 23rd recording 2.39" of rain. The last decade has been 2.3°F cooler on this date compared to 20-30 years ago.
The last decade has been 2.3°F cooler on this date compared to 20-30 years ago.
Planning for March 23rd in Hillsboro, OR? Bring layers as temperatures can vary throughout the day. Consider bringing rain gear or an umbrella.
Cooling Trend
0.5°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2026 | 53° | 35° | 44° | — | — |
| 2025 | 59° | 49° | 54° | 0.13" | — |
| 2024 | 54° | 45° | 49° | 0.23" | — |
| 2023 | 48° | 37° | 43° | 0.46" | — |
| 2022 | 60° | 35° | 48° | 0.15" | — |
| 2021 | 57° | 28° | 43° | — | — |
| 2020 | 53° | 42° | 48° | 0.13" | — |
| 2019 | 58° | 41° | 49° | 0.1" | — |
| 2018 | 44° | 34° | 39° | 1.27" | — |
| 2017 | 57° | 41° | 49° | 1.12" | — |
| 2016 | 54° | 41° | 47° | 0.08" | — |
| 2015 | 54° | 44° | 49° | 2.39" | — |
| 2014 | 61° | 31° | 46° | — | — |
| 2013 | 49° | 31° | 40° | — | — |
| 2012 | 54° | 30° | 42° | — | — |
| 2011 | 59° | 29° | 44° | 0.43" | — |
| 2010 | 61° | 32° | 46° | — | — |
| 2009coldest | 45° | 29° | 37° | 0.15" | — |
| 2008 | 52° | 34° | 43° | 0.43" | — |
| 2007 | 57° | 44° | 51° | — | — |
| 2006 | 57° | 42° | 50° | 0.18" | — |
| 2005 | 47° | 39° | 43° | 0.43" | — |
| 2004 | 61° | 41° | 51° | — | — |
| 2003 | 58° | 41° | 49° | 0.43" | — |
| 2002 | 53° | 35° | 44° | 0.03" | — |
| 2001 | 68° | 30° | 49° | — | — |
| 2000 | 57° | 38° | 47° | — | — |
| 1999 | 61° | 40° | 50° | 0.36" | — |
| 1998warmest | 65° | 53° | 59° | 0.97" | — |
| 1997 | 60° | 39° | 50° | — | — |
| 1996 | 57° | 38° | 47° | 0.03" | — |
| 1995 | 54° | 33° | 43° | 0.2" | — |
| 1994 | 48° | 35° | 42° | 0.25" | — |
| 1993 | 56° | 48° | 52° | 1.98" | — |
| 1992 | 67° | 37° | 52° | — | — |
| 1991 | 49° | 37° | 43° | 0.3" | — |
| 1990 | 54° | 39° | 46° | — | — |
| 1989 | 53° | 32° | 43° | — | — |
| 1988 | 57° | 42° | 50° | 1.17" | — |
| 1987 | 60° | 33° | 47° | 0.64" | — |
| 1986 | 62° | 39° | 51° | 0.25" | — |
| 1985 | 50° | 38° | 44° | 2.08" | — |
| 1984 | 60° | 46° | 53° | 0.15" | — |
| 1983 | 53° | 43° | 48° | 0.33" | — |
| 1982 | 62° | 32° | 47° | — | — |
| 1981 | 60° | 42° | 51° | 0.53" | — |
| 1980 | 57° | 34° | 45° | — | — |
| 1979 | 73° | 33° | 53° | — | — |
| 1978 | 58° | 48° | 53° | 1.19" | — |
| 1977 | 52° | 40° | 46° | 0.81" | — |
| 1976 | 48° | 35° | 42° | 0.71" | — |
| 1975 | 46° | 41° | 44° | 0.79" | — |
| 1974 | 62° | 39° | 51° | — | — |
| 1973 | 64° | 31° | 47° | — | — |
| 1972 | 54° | 35° | 44° | 0.03" | — |
| 1971 | 60° | 50° | 55° | 0.25" | — |
56 years of data from HILLSBORO