Climate Insights for Cascade Airport

Aleutians East Borough, Montana, United States

Hottest
Luglio
30°C peak
Coldest
Febbraio
-8°C low
Wettest
Maggio
80mm rain
Best to Visit
Giugno, Luglio, Agosto
Mild temps & low rain

Climate Overview

The climate in Cascade Airport is cool. The average annual temperature is 7°C and approximately 480mm of precipitation falls per year. Maggio is the wettest month, receiving around 80mm of rainfall. Cascade Airport 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 -8°C. Snowfall occurs from January to December, with around 124cm accumulating over the season.

Temperature

-10° 10° 20° 30° Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Jan Max: 1° Average: -4° Min: -7° Feb Max: 1° Average: -5° Min: -8° Mar Max: 8° Average: 1° Min: -3° Apr Max: 13° Average: 6° Min: 0° May Max: 18° Average: 11° Min: 6° Jun Max: 24° Average: 17° Min: 10° Jul Max: 30° Average: 21° Min: 13° Aug Max: 29° Average: 20° Min: 13° Sep Max: 23° Average: 15° Min: 9° Oct Max: 14° Average: 7° Min: 3° Nov Max: 6° Average: 1° Min: -2° Dec Max: 1° Average: -3° Min: -6°
Max
Average
Min

Cascade Airport has a wide annual temperature range, spanning 38°C from the coldest to warmest months. The warmest month is Luglio, when average highs reach 30°C and the mean temperature sits around 21°C. The coldest month is Febbraio, when overnight lows fall to -8°C and the daily average is -5°C. On average, daily temperatures fluctuate by about 12°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 Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Jan Precipitation: 21mm Snow: 14mm Feb Precipitation: 30mm Snow: 21mm Mar Precipitation: 25mm Snow: 14mm Apr Precipitation: 59mm Snow: 20mm May Precipitation: 80mm Snow: 8mm Jun Precipitation: 75mm Snow: 0mm Jul Precipitation: 22mm Snow: 0mm Aug Precipitation: 24mm Snow: 0mm Sep Precipitation: 49mm Snow: 3mm Oct Precipitation: 43mm Snow: 14mm Nov Precipitation: 26mm Snow: 14mm Dec Precipitation: 24mm Snow: 17mm
Precipitation
Snow

Cascade Airport is a relatively dry area, receiving approximately 480mm of precipitation annually, which averages out to around 40mm per month. The wettest month is May, averaging 80mm of rainfall. June and April also tend to see above-average precipitation. The driest month is January, with just 21mm. That's 59mm less than May, the wettest month. Precipitation varies noticeably between seasons, with the first half (January to June) of the year generally seeing more rainfall. Snowfall is a regular feature from January to December, with around 124cm accumulating over the season. February typically sees the most snow at around 21cm.

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: 19km/h Feb Wind Speed: 20km/h Mar Wind Speed: 19km/h Apr Wind Speed: 19km/h May Wind Speed: 18km/h Jun Wind Speed: 18km/h Jul Wind Speed: 17km/h Aug Wind Speed: 17km/h Sep Wind Speed: 18km/h Oct Wind Speed: 19km/h Nov Wind Speed: 20km/h Dec Wind Speed: 20km/h
Wind Speed

Cascade Airport is mildly breezy, with an average annual wind speed of 19km/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 20km/h, noticeable enough to affect lighter outdoor activities. The calmest conditions occur in August, with average winds dropping to 17km/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 19km/h in winter, 19km/h in spring, 17km/h in summer, 19km/h in autumn.

Seasons

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

92 days until Summer

It is currently spring in Cascade Airport, which began on March 20, 2026. Cascade 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 Luglio at around 30°C, while the coldest stretch bottoms out in Febbraio near -8°C. Summer is next, beginning on June 21, 2026 — 92 days from now.

Spring

Temperatures range from -3 to 18°C. Precipitation is moderate at around 165mm for the season, averaging 55mm per month. Winds are moderate at around 19km/h. Light layers work well as temperatures warm through the season — a great time to be outdoors.

Summer

Temperatures range from 10 to 30°C. Rainfall is relatively light, with around 122mm over the season and a monthly average of 41mm. Winds are moderate at around 17km/h. Comfortable clothing with a light layer for cooler evenings is all you need.

Autumn

Temperatures range from -2 to 23°C. Rainfall is relatively light, with around 119mm over the season and a monthly average of 40mm. Expect around 31cm of snow accumulation during this period. Winds are moderate at around 19km/h. Layered clothing works best as temperatures gradually cool — enjoy the crisp air and changing scenery.

Winter

Temperatures range from -8 to 1°C. Rainfall is relatively light, with around 75mm over the season and a monthly average of 25mm. Expect around 52cm of snow accumulation during this period. Winds are moderate at around 19km/h. Warm winter clothing and waterproof boots are a must, and travel may be affected by snow.

Best Time to Visit

Jan -4°
Feb -5°
Mar
Apr
May 11°
Jun 17°
Jul 21°
Aug 20°
Sep 15°
Oct
Nov
Dec -3°

The best time to visit Cascade Airport is during Giugno, Luglio and Agosto, when the weather is most comfortable for travellers. During these months, average temperatures hover around 19°C with modest rainfall averaging 41mm per month. By contrast, Febbraio can be quite cold with temperatures dropping to -8°C. A light rain jacket is recommended, though showers are generally brief and shouldn't disrupt your plans.

Monthly Climate Data

The table below shows monthly climate averages for Cascade 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
-7 °C
1 °C
19 km/h
21 mm
14 cm
Feb
-8 °C
1 °C
20 km/h
30 mm
21 cm
Mar Current
-3 °C
8 °C
19 km/h
25 mm
14 cm
Apr
0 °C
13 °C
19 km/h
59 mm
20 cm
May
6 °C
18 °C
18 km/h
80 mm
8 cm
Jun
10 °C
24 °C
18 km/h
75 mm
0 cm
Jul
13 °C
30 °C
17 km/h
22 mm
0 cm
Aug
13 °C
29 °C
17 km/h
24 mm
0 cm
Sep
9 °C
23 °C
18 km/h
49 mm
3 cm
Oct
3 °C
14 °C
19 km/h
43 mm
14 cm
Nov
-2 °C
6 °C
20 km/h
26 mm
14 cm
Dec
-6 °C
1 °C
20 km/h
24 mm
17 cm
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Metric (°C, km/h)