Climate Insights for Big Sandy Airport

Goshen County, Montana, United States

Hottest
Luglio
31°C peak
Coldest
Febbraio
-10°C low
Wettest
Maggio
57mm rain
Best to Visit
Giugno, Luglio, Agosto
Mild temps & low rain

Climate Overview

The climate in Big Sandy Airport is cool. The average annual temperature is 8°C and approximately 365mm of precipitation falls per year. Maggio is the wettest month, receiving around 57mm of rainfall. Big Sandy 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 -10°C. Snowfall occurs from January to December, with around 75cm accumulating over the season.

Temperature

-10° 10° 20° 30° 40° Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Jan Max: 0° Average: -5° Min: -9° Feb Max: 0° Average: -6° Min: -10° Mar Max: 7° Average: 0° Min: -4° Apr Max: 14° Average: 7° Min: 1° May Max: 20° Average: 13° Min: 7° Jun Max: 26° Average: 18° Min: 12° Jul Max: 31° Average: 23° Min: 15° Aug Max: 30° Average: 21° Min: 14° Sep Max: 24° Average: 16° Min: 9° Oct Max: 15° Average: 7° Min: 3° Nov Max: 6° Average: 1° Min: -3° Dec Max: 1° Average: -4° Min: -8°
Max
Average
Min

Big Sandy Airport has a wide annual temperature range, spanning 41°C from the coldest to 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 -10°C and the daily average is -6°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 8°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: 18mm Snow: 12mm Feb Precipitation: 23mm Snow: 15mm Mar Precipitation: 18mm Snow: 8mm Apr Precipitation: 34mm Snow: 8mm May Precipitation: 57mm Snow: 2mm Jun Precipitation: 56mm Snow: 0mm Jul Precipitation: 29mm Snow: 0mm Aug Precipitation: 21mm Snow: 0mm Sep Precipitation: 35mm Snow: 2mm Oct Precipitation: 34mm Snow: 8mm Nov Precipitation: 23mm Snow: 10mm Dec Precipitation: 16mm Snow: 11mm
Precipitation
Snow

Big Sandy Airport is a quite dry location, receiving approximately 365mm of precipitation annually, which averages out to around 30mm per month. The wettest month is May, averaging 57mm of rainfall. June and September also tend to see above-average precipitation. The driest month is December, with just 16mm. That's 41mm 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 75cm accumulating over the season. February typically sees the most snow at around 15cm.

Wind

0km/h 5km/h 10km/h 15km/h 20km/h 25km/h Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Jan Wind Speed: 21km/h Feb Wind Speed: 23km/h Mar Wind Speed: 22km/h Apr Wind Speed: 25km/h May Wind Speed: 25km/h Jun Wind Speed: 25km/h Jul Wind Speed: 23km/h Aug Wind Speed: 22km/h Sep Wind Speed: 22km/h Oct Wind Speed: 23km/h Nov Wind Speed: 23km/h Dec Wind Speed: 22km/h
Wind Speed

Big Sandy Airport is moderately windy, with an average annual wind speed of 23km/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 25km/h, noticeable enough to affect lighter outdoor activities. The calmest conditions occur in January, with average winds dropping to 21km/h, making it an ideal period for wind-sensitive activities. Wind conditions are fairly consistent throughout the year, varying by only 4km/h between the calmest and windiest months.

Seasons

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

1 day until Spring

It is currently winter in Big Sandy Airport, which began on December 21, 2026. Big Sandy 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 31°C, while the coldest stretch bottoms out in Febbraio near -10°C. Spring is next, beginning on March 20, 2026 — 1 days from now.

Spring

Temperatures range from -4 to 20°C. Rainfall is relatively light, with around 109mm over the season and a monthly average of 36mm. Winds are moderate at around 24km/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 106mm over the season and a monthly average of 35mm. Winds are moderate at around 23km/h. Light, breathable clothing is ideal — perfect conditions for outdoor activities.

Autumn

Temperatures range from -3 to 24°C. Rainfall is relatively light, with around 92mm over the season and a monthly average of 31mm. Expect around 20cm of snow accumulation during this period. Winds are moderate at around 23km/h. Layered clothing works best as temperatures gradually cool — enjoy the crisp air and changing scenery.

Winter

Temperatures range from -10 to 1°C. Rainfall is relatively light, with around 58mm over the season and a monthly average of 19mm. Expect around 37cm of snow accumulation during this period. Winds are moderate at around 22km/h. Heavy layering and insulated outerwear are essential — exposed skin should be minimised outdoors.

Best Time to Visit

Jan -5°
Feb -6°
Mar
Apr
May 13°
Jun 18°
Jul 23°
Aug 21°
Sep 16°
Oct
Nov
Dec -4°

The best time to visit Big Sandy Airport 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 35mm per month. By contrast, Febbraio can be quite cold with temperatures dropping to -10°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 Big Sandy 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
-9 °C
0 °C
21 km/h
18 mm
12 cm
Feb
-10 °C
0 °C
23 km/h
23 mm
15 cm
Mar Current
-4 °C
7 °C
22 km/h
18 mm
8 cm
Apr
1 °C
14 °C
25 km/h
34 mm
8 cm
May
7 °C
20 °C
25 km/h
57 mm
2 cm
Jun
12 °C
26 °C
25 km/h
56 mm
0 cm
Jul
15 °C
31 °C
23 km/h
29 mm
0 cm
Aug
14 °C
30 °C
22 km/h
21 mm
0 cm
Sep
9 °C
24 °C
22 km/h
35 mm
2 cm
Oct
3 °C
15 °C
23 km/h
34 mm
8 cm
Nov
-3 °C
6 °C
23 km/h
23 mm
10 cm
Dec
-8 °C
1 °C
22 km/h
16 mm
11 cm
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Metric (°C, km/h)