Climateby Month

Friday Harbor, WA weather in March

NOAA 1991-2020 normals and daily records · Friday Harbor all year

Expect chilly weather with frequent rain in Friday Harbor in March, with highs near 53°F and lows near 38°F. Rain falls on about 14 days.

Normal high
53°F
Normal low
38°F
Wet days
14
1.4 in total
Muggy days
0
dew point 65°F+

How March changes from start to finish

Normal values at the start and end of March
March 1March 31
Normal high50°F55°F
Normal low37°F40°F
Chance of a wet day47%43%
Sunrise / sunset6:53 am / 5:55 pm6:51 am / 7:40 pm
Daylight11.0 h12.8 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 March day

  1. 6 am40°Fdew point 35°F
  2. 9 am44°Fdew point 37°F
  3. Noon49°Fdew point 37°F
  4. 3 pm50°Fdew point 37°F
  5. 6 pm48°Fdew point 37°F
  6. 9 pm44°Fdew point 37°F

NOAA hourly normals (local standard time) from Bellingham Intl Airport (28 mi away); average wind 8 mph.

What kind of days to expect

  • Comfortable dayshigh 65-80°F and dew point under 60°F0 of 31
  • Beach dayshigh 80-95°F, under 0.05 in of rain, afternoon wind under 15 mph0 of 31
  • Hot dayshigh 90°F or more0 of 31
  • Muggy daysdaily mean dew point 65°F or more0 of 31
  • Wet daysat least 0.01 in of rain or melted snow14 of 31
  • Notable rainat least 0.10 in5 of 31
  • Freezing nightslow 32°F or below6 of 31
  • Snow on the groundsnow depth 1 in or more0 of 31

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

Rain and snow in March

Normal precipitation is 1.4 in; a dry March brings about 0.8 in and a wet one about 1.8 in (25th and 75th percentiles). Days with half an inch or more are rare. Normal snowfall is 0.1 in.

How March varies from year to year

  • Warmest March, 1991-20202015: average high 56°F
  • Coolest March2002: average high 46°F
  • Wettest March2011: 2.7 in
  • Driest March2006: 0.3 in
  • Highest reading71°F (March 19, 2019)
  • Lowest reading19°F (March 10, 2009)

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

March compared with February and April

FebruaryMarchApril
Normal high49°F53°F57°F
Normal low37°F38°F41°F
Wet days141410
Comfortable days003
Daylight10.2 h11.9 h13.7 h

Highs change by +4°F from February and +4°F into April.

Nearby alternatives in March

How Friday Harbor ranks in March

  • Normal high248th warmest of 378 cities; 6th of 9 in Washington
  • Wet days353rd driest of 378
  • Comfortable days324th most of 339

What to pack for Friday Harbor in March

  • A warm jacket – lows near 38°F, highs near 53°F
  • A rain jacket or umbrella – rain on about 14 days

Frost in March

The last spring frost typically comes around Mar 26; in 1 year in 10 it comes after Apr 21. All frost dates for Friday Harbor.

Heating and cooling

March has 605 heating degree days and 0 cooling degree days (base 65°F), 12% of the year's total heating and cooling demand.

Questions

How cold is Friday Harbor in March?

The normal high is 53°F and the normal low is 38°F. From 1991 to 2020 the coldest March reading was 19°F (March 10, 2009).

Does it rain a lot in Friday Harbor in March?

About 14 days in March have at least 0.01 in of precipitation, and the normal total is 1.4 in. The wettest March in 1991-2020 was in 2011 (2.7 in); the driest was in 2006 (0.3 in).

Does it snow in Friday Harbor in March?

Yes. Normal snowfall in March is 0.1 in.

Is March a good time to visit Friday Harbor?

March ranks 7th of 12 months on our comfort score for Friday Harbor (49 out of 100). It has almost no comfortable days. The best months are July and August.

Where the numbers come from

  • Temperature, rain and frost dates: Friday Harbor Airport (USW00094276), 0.9 mi SSW of the city center, 109 ft (51 ft higher than the city). NOAA normals and daily records, 1991-2020.
  • Snowfall and snow depth: Olga 2 Se (USC00456096), 11 mi ENE of the city center, 80 ft . NOAA normals and daily records, 1991-2020.
  • Humidity and wind by hour: Bellingham Intl Airport (USW00024217), 28 mi NE of the city center, 149 ft (91 ft higher than the city). NOAA normals and daily records, 1991-2020.
  • Daily humidity and wind: Bellingham Intl Airport (727976-24217), 28 mi NE of the city center, 151 ft (93 ft higher than the city). Hourly observations, 1991-2020.
  • Not available for this location: cloud cover (no station close enough or similar enough in elevation).