Climateby Month

Portland, OR weather in April

NOAA 1991-2020 normals and daily records · Portland all year

Portland is cool in April, with rain on most days: highs average 61°F and nights drop to about 44°F. Rain falls on about 17 days. Keep rain gear handy.

Normal high
61°F
Normal low
44°F
Wet days
17
2.9 in total
Muggy days
0
dew point 65°F+

How April changes from start to finish

Normal values at the start and end of April
April 1April 30
Normal high58°F64°F
Normal low42°F47°F
Chance of a wet day58%52%
Sunrise / sunset6:50 am / 7:38 pm6:00 am / 8:15 pm
Daylight12.8 h14.3 h

Chance of a wet day: average for the first and last 7 days of the month. Times are local clock time (Pacific Time).

A typical April day

  1. 6 am46°Fdew point 42°F
  2. 9 am51°Fdew point 42°F
  3. Noon56°Fdew point 42°F
  4. 3 pm60°Fdew point 41°F
  5. 6 pm58°Fdew point 42°F
  6. 9 pm52°Fdew point 42°F

NOAA hourly normals (local standard time) from Portland Intl Airport (6 mi away); average wind 7 mph.

What kind of days to expect

  • Comfortable dayshigh 65-80°F and dew point under 60°F8 of 30
  • Hot dayshigh 90°F or more0 of 30
  • Muggy daysdaily mean dew point 65°F or more0 of 30
  • Wet daysat least 0.01 in of rain or melted snow17 of 30
  • Notable rainat least 0.10 in9 of 30
  • Freezing nightslow 32°F or below0 of 30
  • Snow on the groundsnow depth 1 in or more0 of 30

Average days per April, counted from daily records for each year 1991-2020.

Rain in April

Normal precipitation is 2.9 in; a dry April brings about 2.0 in and a wet one about 3.7 in (25th and 75th percentiles). About 1 day brings half an inch or more. Snow is very rare.

How April varies from year to year

  • Warmest April, 1991-20202016: average high 67°F
  • Coolest April2011: average high 55°F
  • Wettest April1993: 5.3 in
  • Driest April2020: 0.8 in
  • Highest reading90°F (April 19, 2016)
  • Lowest reading31°F (April 1, 2008)

From the station's daily records with NOAA quality flags removed; most recent date shown when a reading repeats.

April compared with March and May

MarchAprilMay
Normal high56°F61°F68°F
Normal low41°F44°F49°F
Wet days181713
Comfortable days4814
Daylight11.9 h13.5 h14.9 h

Highs change by +5°F from March and +7°F into May.

Nearby alternatives in April

How Portland ranks in April

  • Normal high265th warmest of 378 cities; 3rd of 6 in Oregon
  • Wet days372nd driest of 378
  • Comfortable days241st most of 340

What to pack for Portland in April

  • A rain jacket or umbrella – rain on about 17 days

Heating and cooling

April has 380 heating degree days and 3 cooling degree days (base 65°F), 8% of the year's total heating and cooling demand.

Questions

How cold is Portland in April?

The normal high is 61°F and the normal low is 44°F. From 1991 to 2020 the coldest April reading was 31°F (April 1, 2008).

Does it rain a lot in Portland in April?

About 17 days in April have at least 0.01 in of precipitation, and the normal total is 2.9 in. The wettest April in 1991-2020 was in 1993 (5.3 in); the driest was in 2020 (0.8 in).

Is April a good time to visit Portland?

April ranks 6th of 12 months on our comfort score for Portland (59 out of 100). It has about 8 comfortable days. The best month is June.

Where the numbers come from

  • Temperature: Portland Kgw-Tv (USC00356749), 0.7 mi WSW of the city center, 159 ft (127 ft higher than the city). NOAA normals and daily records, 1991-2020.
  • Rain, snowfall, snow depth, frost dates and humidity and wind by hour: Portland Intl Airport (USW00024229), 5.9 mi NE of the city center, 19 ft . NOAA normals and daily records, 1991-2020.
  • Daily humidity and wind: Portland International Airport (726980-24229), 6.0 mi NNE of the city center, 22 ft . Hourly observations, 1991-2020.
  • Not available for this location: cloud cover (no station close enough or similar enough in elevation).