Portland climate

Portland Weather in March

NOAA 1991-2020 normals for Portland Kgw-TV, 1.2 km from Portland

Average highs run from 53°F on March 1 to 58°F on March 31, and lows from 40°F to 42°F. Normal precipitation for the month is 4.83 in over about 18 wet days.

March day by day

The normal high and low for each date, and the record, in °F.

Normal daily high and low temperature at Portland, in °F, with the record for each date.020406080100151015202530
  • Normal low
  • Normal high
  • Record high
  • Record low

March at a glance

Average high
56°F
Average low
41°F
Precipitation
4.83 in
Record high
82°FMar 26, 2025
Record low
19°FMar 3, 1989
Chance of a freeze
38%
Daylight
11 h 09 min to 12 h 46 min
Cloud cover
76%
Humidity
87%
Dew point
39°F
Wind
5.6 mph

Every day of the month

A wet day has at least 0.01 inch of precipitation; snow means at least 0.1 inch of snowfall.

DateNormal highNormal lowRecord highRecord lowChance wetChance of snow
Mar 153°F40°F67°F 198122°F 196057%1%
Mar 253°F40°F67°F 198625°F 196057%1%
Mar 354°F40°F67°F 199419°F 198957%1%
Mar 454°F40°F69°F 198726°F 195457%1%
Mar 554°F40°F66°F 196519°F 195557%1%
Mar 654°F40°F70°F 196528°F 197657%1%
Mar 754°F40°F69°F 194125°F 197457%1%
Mar 855°F40°F72°F 195326°F 197457%1%
Mar 955°F40°F70°F 200525°F 194357%1%
Mar 1055°F40°F74°F 200522°F 196957%1%
Mar 1155°F41°F75°F 200524°F 195657%1%
Mar 1255°F41°F70°F 199424°F 195457%1%
Mar 1356°F41°F71°F 197924°F 194457%1%
Mar 1456°F41°F74°F 194728°F 195357%1%
Mar 1556°F41°F77°F 194726°F 195557%1%
Mar 1656°F41°F80°F 194727°F 195557%0%
Mar 1756°F41°F76°F 194724°F 195557%0%
Mar 1856°F41°F77°F 202428°F 194357%0%
Mar 1956°F41°F73°F 196025°F 196557%0%
Mar 2057°F41°F72°F 201928°F 195557%0%
Mar 2157°F41°F77°F 193928°F 195257%0%
Mar 2257°F41°F78°F 193929°F 196657%0%
Mar 2357°F42°F73°F 197931°F 195157%0%
Mar 2457°F42°F72°F 196029°F 194557%0%
Mar 2557°F42°F80°F 202530°F 197057%0%
Mar 2657°F42°F82°F 202531°F 195557%0%
Mar 2757°F42°F77°F 199427°F 197557%0%
Mar 2858°F42°F76°F 199428°F 196257%0%
Mar 2958°F42°F75°F 199423°F 195457%0%
Mar 3058°F42°F77°F 201324°F 195457%0%
Mar 3158°F42°F77°F 201331°F 197057%0%

Chance of rain

The chance of at least 0.01 inch of precipitation on each date at Portland, in percent, and of at least 0.1 inch of snowfall.02040601102030
  • Chance of a wet day
  • Chance of snowfall

Sunrise and sunset

Times for 2026, local time (PDT).

March 1
sunrise 6:49 AM, sunset 5:58 PM
March 31
sunrise 6:52 AM, sunset 7:38 PM

Every day of March: sun and moon

Other months

Sources

Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00356749 (Portland Kgw-TV), public domain. Records: NOAA GHCN-Daily, station USW00024229, every year on file, quality-flagged values removed. Cloud, humidity, wind and sunshine: NASA POWER (MERRA-2, CERES and GEWEX SRB), 1991-2020. The data was obtained from the National Aeronautics and Space Administration (NASA) Langley Research Center's Prediction Of Worldwide Energy Resources (POWER) project funded through the NASA Earth Science Division: POWER Daily API v2, accessed 2026-09-24. Sun and moon: computed with the NOAA solar equations and Meeus.