Climate Insights for Brooks Seaplane Base

San Juan County, Idaho, United States

Hottest
Luglio
31°C peak
Coldest
Febbraio
-3°C low
Wettest
Dicembre
107mm rain
Best to Visit
Giugno, Luglio, Agosto
Mild temps & low rain

Climate Overview

The climate in Brooks Seaplane Base is cool. The average annual temperature is 10°C and approximately 708mm of precipitation falls per year. Dicembre is the wettest month, receiving around 107mm of rainfall. Brooks Seaplane Base is in the Northern Hemisphere. Summer begins at the end of June and lasts through September. The summer months are: Luglio, Agosto, Giugno. The coldest months are Febbraio, Gennaio, Dicembre, when temperatures can drop to -3°C. Snowfall occurs from January to December, with around 135cm accumulating over the season.

Temperature

-10° 10° 20° 30° 40° Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Jan Max: 2° Average: -1° Min: -3° Feb Max: 4° Average: 0° Min: -3° Mar Max: 10° Average: 4° Min: 0° Apr Max: 15° Average: 8° Min: 3° May Max: 21° Average: 14° Min: 8° Jun Max: 25° Average: 18° Min: 12° Jul Max: 31° Average: 23° Min: 15° Aug Max: 30° Average: 22° Min: 15° Sep Max: 24° Average: 16° Min: 10° Oct Max: 15° Average: 9° Min: 5° Nov Max: 6° Average: 3° Min: 1° Dec Max: 2° Average: -1° Min: -3°
Max
Average
Min

Temperatures in Brooks Seaplane Base vary considerably across the year, with a 34°C difference between the coldest and warmest months. The warmest month is Luglio, when average highs reach 31°C and the mean temperature sits around 23°C. The coldest month is Febbraio, when overnight lows fall to -3°C and the daily average is 0°C. On average, daily temperatures fluctuate by about 10°C between overnight lows and afternoon highs. The sharpest temperature change occurs between September and October, with a 7°C shift in average temperatures.

Precipitation

0mm 25mm 50mm 75mm 100mm 125mm 150mm Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Jan Precipitation: 91mm Snow: 32mm Feb Precipitation: 68mm Snow: 25mm Mar Precipitation: 78mm Snow: 11mm Apr Precipitation: 56mm Snow: 4mm May Precipitation: 52mm Snow: 0mm Jun Precipitation: 32mm Snow: 0mm Jul Precipitation: 7mm Snow: 0mm Aug Precipitation: 12mm Snow: 0mm Sep Precipitation: 31mm Snow: 1mm Oct Precipitation: 70mm Snow: 2mm Nov Precipitation: 104mm Snow: 18mm Dec Precipitation: 107mm Snow: 42mm
Precipitation
Snow

Brooks Seaplane Base is a relatively dry area, receiving approximately 708mm of precipitation annually, which averages out to around 59mm per month. The wettest month is December, averaging 107mm of rainfall. November and January also tend to see above-average precipitation. The driest month is July, with just 7mm. That's 100mm less than December, 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 135cm accumulating over the season. December typically sees the most snow at around 42cm.

Wind

0km/h 5km/h 10km/h 15km/h 20km/h Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Jan Wind Speed: 11km/h Feb Wind Speed: 15km/h Mar Wind Speed: 15km/h Apr Wind Speed: 16km/h May Wind Speed: 14km/h Jun Wind Speed: 15km/h Jul Wind Speed: 14km/h Aug Wind Speed: 14km/h Sep Wind Speed: 14km/h Oct Wind Speed: 14km/h Nov Wind Speed: 13km/h Dec Wind Speed: 12km/h
Wind Speed

Brooks Seaplane Base is mildly breezy, with an average annual wind speed of 14km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is April, averaging 16km/h, though still comfortable for most outdoor activities. The calmest conditions occur in January, with average winds dropping to 11km/h, making it an ideal period for wind-sensitive activities. There is moderate seasonal variation in wind speed, with a 5km/h gap between the calmest and windiest months.

Seasons

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

93 days until Summer

It is currently spring in Brooks Seaplane Base, which began on March 20, 2026. Brooks Seaplane Base 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 Luglio at around 31°C, while the coldest stretch bottoms out in Febbraio near -3°C. Summer is next, beginning on June 21, 2026 — 93 days from now.

Spring

Temperatures range from 0 to 21°C. Precipitation is moderate at around 187mm for the season, averaging 62mm per month. Winds are moderate at around 15km/h. Light layers work well as temperatures warm through the season — a great time to be outdoors.

Summer

Temperatures range from 12 to 31°C. Rainfall is relatively light, with around 51mm over the season and a monthly average of 17mm. Winds are generally light, averaging 14km/h. Light, breathable clothing is ideal — perfect conditions for outdoor activities.

Autumn

Temperatures range from 1 to 24°C. Precipitation is moderate at around 205mm for the season, averaging 68mm per month. Expect around 21cm of snow accumulation during this period. Winds are generally light, averaging 14km/h. Layered clothing works best as temperatures gradually cool — enjoy the crisp air and changing scenery.

Winter

Temperatures range from -3 to 4°C. Precipitation is moderate at around 265mm for the season, averaging 88mm per month. Expect around 99cm of snow accumulation during this period. Winds are generally light, averaging 13km/h. Warm winter clothing and waterproof boots are a must, and travel may be affected by snow.

Best Time to Visit

Jan -1°
Feb
Mar
Apr
May 14°
Jun 18°
Jul 23°
Aug 22°
Sep 16°
Oct
Nov
Dec -1°

The best time to visit Brooks Seaplane Base is during Giugno, Luglio, Agosto and Settembre, when the weather is most comfortable for travellers. During these months, average temperatures hover around 20°C with modest rainfall averaging 20mm per month. By contrast, Febbraio can be quite cold with temperatures dropping to -3°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 Brooks Seaplane Base 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
-3 °C
2 °C
11 km/h
91 mm
32 cm
Feb
-3 °C
4 °C
15 km/h
68 mm
25 cm
Mar Current
0 °C
10 °C
15 km/h
78 mm
11 cm
Apr
3 °C
15 °C
16 km/h
56 mm
4 cm
May
8 °C
21 °C
14 km/h
52 mm
0 cm
Jun
12 °C
25 °C
15 km/h
32 mm
0 cm
Jul
15 °C
31 °C
14 km/h
7 mm
0 cm
Aug
15 °C
30 °C
14 km/h
12 mm
0 cm
Sep
10 °C
24 °C
14 km/h
31 mm
1 cm
Oct
5 °C
15 °C
14 km/h
70 mm
2 cm
Nov
1 °C
6 °C
13 km/h
104 mm
18 cm
Dec
-3 °C
2 °C
12 km/h
107 mm
42 cm
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Metric (°C, km/h)