Weather in Portland in March
In an average March, Portland sees a daily high around 57°F and a low around 40°F, based on 1980–2026 of local climate records.
| Average high | 57°F |
|---|---|
| Typical high range | 49°F to 66°F |
| Average low | 40°F |
| Typical low range | 32°F to 47°F |
| Average daily precipitation | 0.20 in |
March records
The most extreme March on record for each metric, across 1980–2026. For rainfall, the wettest and driest are by total March accumulation.
High
Highest
78°F
2025-03-26
Lowest
40°F
1989-03-02
Low
Highest
55°F
2025-03-24
Lowest
24°F
1989-03-03
Feels-like
Highest
55°F
2025-03-24
Lowest
17°F
1989-03-03
Humidity
Highest
12.1 g/m³
2025-03-25
Lowest
1.9 g/m³
2019-03-04
Wind
Highest
23 mph
1999-03-03
Lowest
2 mph
2020-03-09
Gust
Highest
62 mph
1999-03-03
Lowest
7 mph
2015-03-06
Precip
Wettest
11.80 in
2012
Driest
1.38 in
1992
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