March weather in Lake Oswego, OR
The average temperature in Lake Oswego in March is 48.9°F (39.8°F–58.0°F). Average precipitation: 4.78 inches.
March is a spring month in Lake Oswego, and is cooler than the annual average of 55.4°F. Daily temperatures swing about 18.2°F between overnight low and afternoon high. Daylight averages about 11h 40m. For travel, March is a comfortable month to visit.
Avg High
58.0°F
Avg Low
39.8°F
Precipitation
4.78 in
Daylight
11h 40m
March records in Lake Oswego
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| March 1 | 68.0°F (1990) | 21.9°F (1971) | 1.30 in (1997) |
| March 2 | 72.0°F (1986) | 26.1°F (1951) | 1.14 in (2012) |
| March 3 | 68.0°F (1965) | 24.1°F (1960) | 1.70 in (1916) |
| March 4 | 68.0°F (1968) | 24.1°F (2024) | 1.34 in (1996) |
| March 5 | 70.0°F (1965) | 23.0°F (1955) | 1.44 in (2014) |
| March 6 | 73.9°F (2001) | 28.0°F (1956) | 2.06 in (1932) |
| March 7 | 91.9°F (2005) | 24.1°F (1951) | 1.95 in (2003) |
| March 8 | 73.0°F (2005) | 26.1°F (1974) | 1.30 in (1951) |
| March 9 | 73.0°F (2005) | 28.9°F (1951) | 1.70 in (1966) |
| March 10 | 78.1°F (2005) | 28.9°F (2022) | 1.38 in (2011) |
| March 11 | 77.0°F (2005) | 24.1°F (1956) | 1.76 in (1928) |
| March 12 | 73.9°F (1994) | 26.1°F (1954) | 1.01 in (1977) |
| March 13 | 75.0°F (1979) | 27.0°F (1954) | 1.60 in (2023) |
| March 14 | 72.0°F (1996) | 28.0°F (1969) | 1.78 in (2008) |
| March 15 | 71.1°F (2024) | 28.0°F (2006) | 2.25 in (2015) |
| March 16 | 77.0°F (2024) | 28.0°F (1955) | 2.00 in (2017) |
| March 17 | 77.0°F (2024) | 26.1°F (1955) | 1.60 in (1921) |
| March 18 | 75.9°F (1996) | 28.0°F (1966) | 1.41 in (1975) |
| March 19 | 77.0°F (1960) | 30.0°F (2012) | 1.00 in (2017) |
| March 20 | 75.9°F (2019) | 26.1°F (1955) | 5.00 in (2017) |
| March 21 | 73.0°F (1960) | 30.0°F (1954) | 1.50 in (2012) |
| March 22 | 72.0°F (1979) | 24.1°F (1966) | 1.34 in (2003) |
| March 23 | 73.0°F (1979) | 28.0°F (1948) | 0.86 in (1985) |
| March 24 | 73.9°F (1960) | 30.9°F (2003) | 1.40 in (1917) |
| March 25 | 77.0°F (2025) | 28.9°F (1996) | 1.55 in (1916) |
| March 26 | 82.9°F (2025) | 28.9°F (1996) | 1.63 in (1916) |
| March 27 | 81.0°F (1994) | 28.0°F (1975) | 0.95 in (2005) |
| March 28 | 73.9°F (1990) | 28.0°F (1975) | 1.21 in (1974) |
| March 29 | 77.0°F (1964) | 28.9°F (1972) | 2.09 in (1963) |
| March 30 | 79.0°F (2013) | 28.0°F (1954) | 1.25 in (2012) |
| March 31 | 73.9°F (1966) | 30.0°F (1949) | 1.72 in (1928) |