March weather in Union, OR
The average temperature in Union in March is 41.6°F (30.7°F–52.5°F). Average precipitation: 1.26 inches. Average snowfall is 1.2 inches.
March is a spring month in Union, and is cooler than the annual average of 49°F. Daily temperatures swing about 21.8°F between overnight low and afternoon high. Expect about 11 days with precipitation. Daylight averages about 11h 40m. For travel, March is cool.
Avg High
52.5°F
Avg Low
30.7°F
Precipitation
1.26 in
Snow
1.2 in
March records in Union
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| March 1 | 66.9°F (1986) | 1.0°F (1917) | 0.47 in (1955) |
| March 2 | 64.9°F (1968) | -2.9°F (1917) | 0.45 in (2018) |
| March 3 | 64.0°F (2009) | 5.0°F (1917) | 0.46 in (2009) |
| March 4 | 64.9°F (1994) | 8.1°F (1955) | 0.40 in (1983) |
| March 5 | 68.0°F (1968) | -9.9°F (1955) | 0.54 in (2026) |
| March 6 | 64.0°F (1987) | 1.0°F (1955) | 0.64 in (1932) |
| March 7 | 64.0°F (2005) | 14.0°F (1955) | 0.29 in (1912) |
| March 8 | 66.0°F (2005) | 18.0°F (1952) | 0.35 in (1916) |
| March 9 | 69.1°F (2005) | 10.9°F (1933) | 0.30 in (1978) |
| March 10 | 73.0°F (1972) | 12.0°F (1948) | 0.42 in (1967) |
| March 11 | 69.1°F (1934) | 10.0°F (1922) | 0.62 in (1967) |
| March 12 | 71.1°F (2005) | 3.9°F (1967) | 0.79 in (1963) |
| March 13 | 69.1°F (1934) | 9.0°F (1963) | 0.40 in (1972) |
| March 14 | 71.1°F (1934) | 12.0°F (1944) | 0.75 in (2018) |
| March 15 | 71.1°F (1934) | 15.1°F (1942) | 0.75 in (1995) |
| March 16 | 75.0°F (1994) | 3.9°F (1917) | 0.41 in (1923) |
| March 17 | 72.0°F (2007) | 19.0°F (1917) | 0.44 in (1957) |
| March 18 | 73.9°F (2007) | 5.0°F (1965) | 0.60 in (1932) |
| March 19 | 70.0°F (1928) | 8.1°F (1965) | 0.59 in (1932) |
| March 20 | 72.0°F (2007) | 3.9°F (1913) | 0.56 in (1953) |
| March 21 | 73.0°F (1915) | 10.9°F (1913) | 0.73 in (1984) |
| March 22 | 73.9°F (1915) | 17.1°F (1912) | 0.50 in (2025) |
| March 23 | 73.0°F (1960) | 19.9°F (1994) | 0.40 in (1990) |
| March 24 | 71.1°F (1939) | 12.9°F (1965) | 1.01 in (2002) |
| March 25 | 73.0°F (2007) | 15.1°F (1913) | 0.89 in (1940) |
| March 26 | 77.0°F (1960) | 14.0°F (1913) | 0.64 in (1981) |
| March 27 | 72.0°F (1978) | 19.0°F (1975) | 0.31 in (2007) |
| March 28 | 72.0°F (1986) | 12.0°F (1975) | 0.33 in (2019) |
| March 29 | 73.9°F (1978) | 12.0°F (1954) | 0.95 in (1915) |
| March 30 | 75.9°F (1978) | 10.0°F (1936) | 0.46 in (1913) |
| March 31 | 72.0°F (1969) | 19.9°F (1917) | 0.45 in (1940) |