Climate · La Conner

La Conner, WA climate

La Conner has mild winters and cool summers. A typical July afternoon reaches 72°, a January night drops to 36°, and about 3 inches of snow falls in a normal winter.

NOAA 1991-2020 climate normals Updated once a decade
July high
72°
52nd coolest of 639 Washington towns
January low
36°
94th mildest of 639 Washington towns
Rain + melted snow
31 in
236th driest of 639 Washington towns
Snow a winter
3 in
113th least snowy of 581 Washington towns
A normal year

What a year in La Conner feels like

Winter

48° / 36°
Typical high / low · Snow is rare

Spring

58° / 42°
Typical high / low · Last frost around Mar 24

Summer

71° / 52°
Typical high / low · 90° days are rare

Fall

59° / 44°
Typical high / low · First frost around Nov 3
Best months to be outsideMayJunJulAugSepHighs of 62–84° and lows of 40° or more
Month by month

La Conner weather by month

Average highs, lows, rain and snow for every month, from NOAA’s 1991–2020 normals.

MonthHighLowRain + meltSnowWet daysSnow on ground30-yr range
January47°36°3.9" 0160 34° – 47°
February50°36°2.7" 0120 36° – 48°
March53°38°2.8" 0.3"140 41° – 50°
April58°41°2.5" 0120 45° – 54°
May64°46°2.2" 090 51° – 58°
June67°50°1.6" 090 56° – 63°
July72°53°0.9" 040 60° – 66°
August73°53°1.1" 040 60° – 65°
September68°49°1.7" 080 56° – 61°
October59°44°3.1" 0120 49° – 56°
November51°39°4.4" 0.6"160 41° – 50°
December46°36°3.8" 1.6"160 36° – 44°
Year59°43°30.7"2.5"1310

“Wet days” have at least 0.01" of rain or melted snow. “Snow on ground” counts days with 1" or more. The 30-year range is the coldest and warmest that month’s average temperature got between 1991 and 2020.

Rain & snow

Rain and snow in La Conner

La Conner gets 31 inches of rain and melted snow a year. November is the wettest month and July the driest. Rain or snow falls on about 131 days a year.

31 in
Rain + melted snow a year
Less rain than 74% of U.S. towns
3 in
Snow in a normal winter
Less snow than 82% of U.S. towns
0 days
With 1"+ of snow on the ground
Fewer than 87% of U.S. towns

Rain + melted snow by month

Inches of water
4.4"

Snowfall by month

Inches of snow
1.6"
Frost & the growing season

About 224 frost-free days a year

In half of years the last 32° night comes by March 24 and the first one by November 3. That leaves about 224 frost-free days for gardens, longer than 84% of U.S. towns.

46
nights at or below 32° in a normal year
0
nights below 0° in a normal year
<1
days that reach 90° in a normal year

Freezing nights by month

Average nights at or below 32°
Heating & cooling

Heating and cooling a home in La Conner

Engineers use “degree days” to estimate how hard a furnace or air conditioner works. In La Conner, 99% of that work is heating and 1% is cooling, so the furnace matters far more than the air conditioner.

99%heating
4,986 heating degree daysLess heating than 66% of U.S. towns
64 cooling degree daysLess cooling than 99% of U.S. towns

Degree days measure how far each day’s average temperature falls below or rises above 65°, added up over a year. Source: NOAA station normals.

Compared with other towns

How La Conner compares

Summer heat72° July high
Cooler than 99% of U.S. towns52nd coolest of 639 Washington towns
Winter cold36° January low
Milder than 89% of U.S. towns94th mildest of 639 Washington towns
Precipitation31" a year
Drier than 74% of U.S. towns236th driest of 639 Washington towns
Snow3" a winter
Less snow than 82% of U.S. towns113th least snowy of 581 Washington towns
Growing season224 frost-free days
Longer than 84% of U.S. towns175th longest of 631 Washington towns

Compared with every U.S. town and city on TownTapestry, each counted once.

Then and now

Warmer than it used to be

+1.3°1991–2020 average vs. the 20th century (1901–2000)

The last 30 years in La Conner averaged 1.3° warmer than the 1900s. The biggest change is in January (+3.0°). The shift is larger than in 54% of U.S. towns.

❄️ Winter+1.5° now 42°, was 40°
🌷 Spring+1.2° now 50°, was 49°
☀️ Summer+1.4° now 61°, was 60°
🍂 Fall+1.0° now 52°, was 51°

Change by month1991–2020 average minus 1901–2000 average, at La Conner’s spot on NOAA’s grid

Year to year

How much a month can swing

A normal is an average, and real years wander around it. January swings the most: between 1991 and 2020 its average temperature ranged from 34° to 47°. August is the most reliable, staying within 5°.

Coldest to warmest month in 30 yearsNormal
Questions

Common questions about La Conner’s climate

What is the coldest month in La Conner?

December, with a typical high of 46° and a low of 36°.

What is the hottest month in La Conner?

August, with a typical high of 73° and a low of 53°.

How much snow does La Conner get?

About 3 inches in a normal winter, most of it in December.

When is the first frost in La Conner?

In half of years the first 32° night comes by November 3, and the last spring frost by March 24.

What is the rainiest month in La Conner?

November, with 4.4 inches of rain and melted snow. The year totals 31 inches.

Temperatures and rainfall come from NOAA’s gridded climate normals for La Conner itself (about a 3-mile square). Snow, frost dates and day counts come from NOAA’s weather station at Coupeville 1 S, WA (16 mi, snow) and Mt Vernon 3 Wnw, WA (6 mi, frost, heat and degree days). Normals are 30-year averages, not a forecast. Source: NOAA NCEI U.S. Climate Normals, 1991–2020 and 1901–2000.

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