Climate Insights for Blakely Island Airport

San Juan County, Washington, United States

Hottest
Agosto
17°C peak
Coldest
Febbraio
5°C low
Wettest
Novembre
187mm rain
Best to Visit
Agosto
Mild temps & low rain

Climate Overview

The climate in Blakely Island Airport is temperate. The average annual temperature is 10°C and approximately 1113mm of precipitation falls per year. Novembre is the wettest month, receiving around 187mm of rainfall. Blakely Island Airport is in the Northern Hemisphere. Summer begins at the end of June and lasts through September. The summer months are: Agosto, Luglio, Settembre. The coldest months are Febbraio, Dicembre, Gennaio, when temperatures can drop to 5°C. Light snow can occur between January and December.

Temperature

10° 15° 20° Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Jan Max: 8° Average: 7° Min: 6° Feb Max: 8° Average: 6° Min: 5° Mar Max: 9° Average: 8° Min: 6° Apr Max: 10° Average: 9° Min: 8° May Max: 13° Average: 12° Min: 11° Jun Max: 14° Average: 13° Min: 12° Jul Max: 16° Average: 15° Min: 14° Aug Max: 17° Average: 15° Min: 14° Sep Max: 15° Average: 14° Min: 13° Oct Max: 13° Average: 11° Min: 11° Nov Max: 10° Average: 9° Min: 8° Dec Max: 8° Average: 7° Min: 6°
Max
Average
Min

Blakely Island Airport sees moderate temperature variation throughout the year, ranging from 5°C to 17°C. Agosto is the warmest month, though highs remain moderate at 17°C with a mean of 15°C. Febbraio is the coolest month, with minimum temperatures around 5°C and an average of 6°C. Daily temperature variation is modest, with an average difference of 2°C between highs and lows. The sharpest temperature change occurs between October and November, with a 3°C shift in average temperatures.

Precipitation

0mm 50mm 100mm 150mm 200mm Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Jan Precipitation: 159mm Snow: 3mm Feb Precipitation: 122mm Snow: 7mm Mar Precipitation: 101mm Snow: 1mm Apr Precipitation: 72mm Snow: 0mm May Precipitation: 41mm Snow: 0mm Jun Precipitation: 37mm Snow: 0mm Jul Precipitation: 15mm Snow: 0mm Aug Precipitation: 21mm Snow: 0mm Sep Precipitation: 58mm Snow: 0mm Oct Precipitation: 131mm Snow: 0mm Nov Precipitation: 187mm Snow: 1mm Dec Precipitation: 169mm Snow: 5mm
Precipitation
Snow

Blakely Island Airport is a moderately rainy area, receiving approximately 1113mm of precipitation annually, which averages out to around 93mm per month. The wettest month is November, averaging 187mm of rainfall. December and January also tend to see above-average precipitation. The driest month is July, with just 15mm. That's 172mm less than November, the wettest month. Rainfall is heavily concentrated in certain months, creating a distinct wet and dry season. Visitors should plan around these patterns, as the difference between peak and low months is dramatic. Light snowfall can occur between January and December, totalling around 16cm annually. February is the snowiest month with approximately 7cm.

Wind

0km/h 5km/h 10km/h 15km/h 20km/h 25km/h 30km/h 35km/h Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Jan Wind Speed: 30km/h Feb Wind Speed: 28km/h Mar Wind Speed: 26km/h Apr Wind Speed: 25km/h May Wind Speed: 21km/h Jun Wind Speed: 21km/h Jul Wind Speed: 19km/h Aug Wind Speed: 19km/h Sep Wind Speed: 19km/h Oct Wind Speed: 25km/h Nov Wind Speed: 30km/h Dec Wind Speed: 31km/h
Wind Speed

Blakely Island Airport is moderately windy, with an average annual wind speed of 25km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is December, averaging 31km/h, which can feel quite blustery and may affect outdoor activities. The calmest conditions occur in August, with average winds dropping to 19km/h, making it an ideal period for wind-sensitive activities. There is moderate seasonal variation in wind speed, with a 12km/h gap between the calmest and windiest months. Wind tends to be stronger during winter months, driven by seasonal pressure systems. The seasonal averages break down to 30km/h in winter, 24km/h in spring, 20km/h in summer, 25km/h in autumn.

Seasons

Winter
Dec 21
Spring
Mar 20
Summer
Jun 21
Autumn
Sep 23

1 day until Spring

It is currently winter in Blakely Island Airport, which began on December 21, 2026. Blakely Island Airport is in the Northern Hemisphere, where spring begins in March, summer in June, autumn in September, and winter in December. The warmest period peaks in Agosto at around 17°C, while the coldest stretch bottoms out in Febbraio near 5°C. Spring is next, beginning on March 20, 2026 — 1 days from now.

Spring

Temperatures range from 6 to 13°C. Precipitation is moderate at around 215mm for the season, averaging 72mm per month. Winds are moderate at around 24km/h. An umbrella or waterproof jacket is advisable as spring showers are frequent.

Summer

Temperatures range from 12 to 17°C. Rainfall is relatively light, with around 73mm over the season and a monthly average of 24mm. Winds are moderate at around 20km/h. Comfortable clothing with a light layer for cooler evenings is all you need.

Autumn

Temperatures range from 8 to 15°C. Rainfall is heavy, totalling around 376mm across the season with a monthly average of 125mm. Winds are moderate at around 25km/h. A waterproof jacket and sturdy footwear are recommended as rain becomes more frequent.

Winter

Temperatures range from 5 to 8°C. Rainfall is heavy, totalling around 450mm across the season with a monthly average of 150mm. Expect around 15cm of snow accumulation during this period. Winds are strong, averaging 30km/h. A light jacket or sweater is usually sufficient, though cooler evenings may call for an extra layer.

Best Time to Visit

Jan
Feb
Mar
Apr
May 12°
Jun 13°
Jul 15°
Aug 15°
Sep 14°
Oct 11°
Nov
Dec

The best time to visit Blakely Island Airport is during Agosto, when the weather is most comfortable for travellers. During these months, average temperatures hover around 15°C with modest rainfall averaging 21mm per month. By contrast, Febbraio can be quite cold with temperatures dropping to 5°C. With minimal rainfall expected, you can pack light and plan outdoor activities with confidence.

Monthly Climate Data

The table below shows monthly climate averages for Blakely Island Airport based on historical weather data. Min and max temperatures represent typical overnight lows and afternoon highs for each month, shown in degrees Celsius (°C). Precipitation is measured in millimetres (mm) and indicates the average total rainfall per month. Snow is measured in centimetres (cm) and reflects average monthly snowfall accumulation. Wind speed is the average sustained speed in kilometres per hour (km/h). All values are based on averages from over 10 years of historical weather data. The current month is highlighted for quick reference.

Month
Min Temperature
Max Temperature
Wind Speed
Precipitation
Snow
Jan
6 °C
8 °C
30 km/h
159 mm
3 cm
Feb
5 °C
8 °C
28 km/h
122 mm
7 cm
Mar Current
6 °C
9 °C
26 km/h
101 mm
1 cm
Apr
8 °C
10 °C
25 km/h
72 mm
0 cm
May
11 °C
13 °C
21 km/h
41 mm
0 cm
Jun
12 °C
14 °C
21 km/h
37 mm
0 cm
Jul
14 °C
16 °C
19 km/h
15 mm
0 cm
Aug
14 °C
17 °C
19 km/h
21 mm
0 cm
Sep
13 °C
15 °C
19 km/h
58 mm
0 cm
Oct
11 °C
13 °C
25 km/h
131 mm
0 cm
Nov
8 °C
10 °C
30 km/h
187 mm
1 cm
Dec
6 °C
8 °C
31 km/h
169 mm
5 cm
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Metric (°C, km/h)