Weather on March 18
Renton, WA
55 Years of Data
Avg High
56°F
Avg Low
39°F
Warmest
1972
58°F avg
Coldest
2012
38°F avg
About This Date
March 18th in Renton, WA typically brings cool spring weather, with average highs around 56°F and lows near 39°F. Over 56 years of records, the warmest March 18th was in 1972 (58°F average), while the coldest was 2012 (38°F) — a 20°F range across recorded history. Rain or other precipitation has occurred on about 48% of March 18th dates historically, with the wettest March 18th recording 3.05" of rain. The last decade has been 2.2°F warmer on this date compared to 20-30 years ago.
The last decade has been 2.2°F warmer on this date compared to 20-30 years ago.
Planning for March 18th in Renton, WA? Bring layers as temperatures can vary throughout the day. Consider bringing rain gear or an umbrella.
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2026 | 59° | 51° | 55° | 0.56" | — |
| 2025 | 50° | 35° | 43° | — | — |
| 2024 | 68° | 43° | 55° | — | — |
| 2023 | 65° | 39° | 52° | — | — |
| 2022 | 58° | 46° | 52° | 0.08" | — |
| 2021 | 54° | 38° | 46° | 0.13" | — |
| 2020 | 57° | 33° | 45° | — | — |
| 2019 | 76° | 40° | 58° | — | — |
| 2018 | 57° | 41° | 49° | — | — |
| 2017 | 56° | 36° | 46° | 0.79" | — |
| 2016 | 65° | 38° | 51° | — | — |
| 2015 | 61° | 44° | 52° | — | — |
| 2014 | 50° | 39° | 45° | — | — |
| 2013 | 53° | 37° | 45° | — | — |
| 2012coldest | 42° | 33° | 38° | 0.28" | — |
| 2011 | 52° | 38° | 45° | 0.58" | — |
| 2010 | 52° | 32° | 42° | — | — |
| 2009 | 56° | 38° | 47° | 0.03" | — |
| 2008 | 52° | 40° | 46° | — | — |
| 2007 | 62° | 50° | 56° | 0.03" | — |
| 2006 | 50° | 37° | 44° | 0.28" | — |
| 2005 | 53° | 40° | 46° | — | — |
| 2004 | 52° | 38° | 45° | 0.36" | — |
| 2003 | 55° | 39° | 47° | 0.23" | — |
| 2002 | 43° | 35° | 39° | 0.38" | — |
| 2001 | 57° | 47° | 52° | 1.4" | — |
| 2000 | 53° | 42° | 48° | 0.48" | — |
| 1999 | 53° | 42° | 48° | 0.05" | — |
| 1998 | 61° | 38° | 49° | — | — |
| 1997 | 58° | 48° | 53° | 3.05" | — |
| 1996 | 72° | 35° | 53° | — | — |
| 1995 | 56° | 47° | 51° | 0.89" | — |
| 1994 | 50° | 40° | 45° | 0.71" | — |
| 1993 | 54° | 43° | 48° | — | — |
| 1992 | 57° | 36° | 46° | — | — |
| 1991 | 56° | 34° | 45° | — | — |
| 1990 | 59° | 46° | 53° | 0.1" | — |
| 1989 | 54° | 42° | 48° | 0.71" | — |
| 1988 | 68° | 31° | 49° | — | — |
| 1987 | 51° | 39° | 45° | 0.08" | — |
| 1986 | 55° | 42° | 49° | 0.38" | — |
| 1985 | 50° | 44° | 47° | — | — |
| 1984 | 53° | 43° | 48° | 0.15" | — |
| 1983 | 63° | 31° | 47° | — | — |
| 1982 | 55° | 34° | 44° | — | — |
| 1981 | 59° | 30° | 45° | 0.03" | — |
| 1980 | 47° | 37° | 42° | — | — |
| 1979 | 59° | 42° | 51° | — | — |
| 1978 | 66° | 33° | 50° | — | — |
| 1977 | 55° | 33° | 44° | — | — |
| 1976 | 53° | 44° | 49° | 0.58" | — |
| 1975 | 50° | 42° | 46° | 1.17" | — |
| 1974 | 55° | 31° | 43° | — | — |
| 1973 | 56° | 39° | 47° | — | — |
| 1972warmest | 64° | 51° | 58° | 0.2" | — |
| 1971 | 53° | — | — | — | — |
56 years of data from RENTON MUNI AP