Climate Insights for Big Lake

Skagit County, Washington, United States

Hottest
Agosto
23°C peak
Coldest
Febbraio
1°C low
Wettest
Novembre
292mm rain
Best to Visit
Luglio, Agosto
Mild temps & low rain

Climate Overview

The climate in Big Lake is cool. The average annual temperature is 10°C and approximately 1884mm of precipitation falls per year. Novembre is the wettest month, receiving around 292mm of rainfall. Big Lake is in the Northern Hemisphere. Summer begins at the end of June and lasts through September. The summer months are: Agosto, Luglio, Giugno. The coldest months are Febbraio, Dicembre, Gennaio, when temperatures can drop to 1°C. Snowfall occurs from January to December, with around 170cm accumulating over the season.

Temperature

10° 15° 20° 25° 30° Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Jan Max: 6° Average: 4° Min: 2° Feb Max: 7° Average: 3° Min: 1° Mar Max: 10° Average: 6° Min: 3° Apr Max: 13° Average: 8° Min: 5° May Max: 17° Average: 12° Min: 9° Jun Max: 19° Average: 15° Min: 11° Jul Max: 23° Average: 18° Min: 14° Aug Max: 23° Average: 18° Min: 14° Sep Max: 19° Average: 15° Min: 11° Oct Max: 14° Average: 10° Min: 8° Nov Max: 9° Average: 6° Min: 4° Dec Max: 5° Average: 3° Min: 1°
Max
Average
Min

Temperatures in Big Lake vary considerably across the year, with a 22°C difference between the coldest and warmest months. Agosto is the warmest month, though highs remain moderate at 23°C with a mean of 18°C. Febbraio is the coolest month, with minimum temperatures around 1°C and an average of 3°C. Daily temperature variation is modest, with an average difference of 7°C between highs and lows. The sharpest temperature change occurs between September and October, with a 4°C shift in average temperatures.

Precipitation

0mm 50mm 100mm 150mm 200mm 250mm 300mm Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Jan Precipitation: 250mm Snow: 30mm Feb Precipitation: 213mm Snow: 43mm Mar Precipitation: 185mm Snow: 23mm Apr Precipitation: 145mm Snow: 9mm May Precipitation: 80mm Snow: 0mm Jun Precipitation: 75mm Snow: 0mm Jul Precipitation: 23mm Snow: 0mm Aug Precipitation: 35mm Snow: 0mm Sep Precipitation: 108mm Snow: 0mm Oct Precipitation: 208mm Snow: 1mm Nov Precipitation: 292mm Snow: 18mm Dec Precipitation: 271mm Snow: 45mm
Precipitation
Snow

Big Lake is a fairly wet location, receiving approximately 1884mm of precipitation annually, which averages out to around 157mm per month. The wettest month is November, averaging 292mm of rainfall. December and January also tend to see above-average precipitation. The driest month is July, with just 23mm. That's 268mm 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. Snowfall is a regular feature from January to December, with around 170cm accumulating over the season. December typically sees the most snow at around 45cm.

Wind

0km/h 5km/h 10km/h 15km/h Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Jan Wind Speed: 12km/h Feb Wind Speed: 11km/h Mar Wind Speed: 12km/h Apr Wind Speed: 12km/h May Wind Speed: 10km/h Jun Wind Speed: 10km/h Jul Wind Speed: 10km/h Aug Wind Speed: 10km/h Sep Wind Speed: 10km/h Oct Wind Speed: 11km/h Nov Wind Speed: 13km/h Dec Wind Speed: 12km/h
Wind Speed

Big Lake is relatively calm, with an average annual wind speed of 11km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is November, averaging 13km/h, though still comfortable for most outdoor activities. The calmest conditions occur in July, with average winds dropping to 10km/h, making it an ideal period for wind-sensitive activities. Wind conditions are fairly consistent throughout the year, varying by only 3km/h 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 12km/h in winter, 11km/h in spring, 10km/h in summer, 11km/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 Big Lake, which began on December 21, 2026. Big Lake 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 23°C, while the coldest stretch bottoms out in Febbraio near 1°C. Spring is next, beginning on March 20, 2026 — 1 days from now.

Spring

Temperatures range from 3 to 17°C. Rainfall is heavy, totalling around 410mm across the season with a monthly average of 137mm. Winds are generally light, averaging 11km/h. An umbrella or waterproof jacket is advisable as spring showers are frequent.

Summer

Temperatures range from 11 to 23°C. Rainfall is relatively light, with around 133mm over the season and a monthly average of 44mm. Winds are generally light, averaging 10km/h. Comfortable clothing with a light layer for cooler evenings is all you need.

Autumn

Temperatures range from 4 to 19°C. Rainfall is heavy, totalling around 607mm across the season with a monthly average of 202mm. Expect around 19cm of snow accumulation during this period. Winds are generally light, averaging 11km/h. A waterproof jacket and sturdy footwear are recommended as rain becomes more frequent.

Winter

Temperatures range from 1 to 7°C. Rainfall is heavy, totalling around 734mm across the season with a monthly average of 245mm. Expect around 118cm of snow accumulation during this period. Winds are generally light, averaging 12km/h. Warm winter clothing and waterproof boots are a must, and travel may be affected by snow.

Best Time to Visit

Jan
Feb
Mar
Apr
May 12°
Jun 15°
Jul 18°
Aug 18°
Sep 15°
Oct 10°
Nov
Dec

The best time to visit Big Lake is during Luglio and Agosto, when the weather is most comfortable for travellers. During these months, average temperatures hover around 18°C with modest rainfall averaging 29mm per month. By contrast, Febbraio can be quite cold with temperatures dropping to 1°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 Big Lake 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
2 °C
6 °C
12 km/h
250 mm
30 cm
Feb
1 °C
7 °C
11 km/h
213 mm
43 cm
Mar Current
3 °C
10 °C
12 km/h
185 mm
23 cm
Apr
5 °C
13 °C
12 km/h
145 mm
9 cm
May
9 °C
17 °C
10 km/h
80 mm
0 cm
Jun
11 °C
19 °C
10 km/h
75 mm
0 cm
Jul
14 °C
23 °C
10 km/h
23 mm
0 cm
Aug
14 °C
23 °C
10 km/h
35 mm
0 cm
Sep
11 °C
19 °C
10 km/h
108 mm
0 cm
Oct
8 °C
14 °C
11 km/h
208 mm
1 cm
Nov
4 °C
9 °C
13 km/h
292 mm
18 cm
Dec
1 °C
5 °C
12 km/h
271 mm
45 cm
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Metric (°C, km/h)