Climate Insights for South Fork Ranch Airport

Teton County, Idaho, United States

Hottest
July
27°C peak
Coldest
December
-12°C low
Wettest
February
107mm rain
Best to Visit
July, August
Mild temps & low rain

Climate Overview

The climate in South Fork Ranch Airport is cool. The average annual temperature is 5°C and approximately 668mm of precipitation falls per year. February is the wettest month, receiving around 107mm of rainfall. South Fork Ranch Airport is in the Northern Hemisphere. Summer begins at the end of June and lasts through September. The summer months are: July, August, June. The coldest months are December, January, February, when temperatures can drop to -12°C. South Fork Ranch Airport experiences heavy snowfall, typically from January through December.

Temperature

-20° -10° 10° 20° 30° Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Jan Max: -2° Average: -6° Min: -9° Feb Max: -1° Average: -5° Min: -8° Mar Max: 4° Average: -1° Min: -5° Apr Max: 9° Average: 3° Min: -2° May Max: 15° Average: 8° Min: 1° Jun Max: 21° Average: 13° Min: 5° Jul Max: 27° Average: 18° Min: 9° Aug Max: 27° Average: 18° Min: 9° Sep Max: 20° Average: 12° Min: 5° Oct Max: 11° Average: 4° Min: -1° Nov Max: 4° Average: -1° Min: -6° Dec Max: -3° Average: -8° Min: -12°
Max
Average
Min

South Fork Ranch Airport has a wide annual temperature range, spanning 39°C from the coldest to warmest months. The warmest month is July, when average highs reach 27°C and the mean temperature sits around 18°C. The coldest month is December, when overnight lows fall to -12°C and the daily average is -8°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 125mm 150mm Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Jan Precipitation: 96mm Snow: 94mm Feb Precipitation: 107mm Snow: 99mm Mar Precipitation: 88mm Snow: 63mm Apr Precipitation: 53mm Snow: 21mm May Precipitation: 66mm Snow: 8mm Jun Precipitation: 29mm Snow: 4mm Jul Precipitation: 7mm Snow: 0mm Aug Precipitation: 11mm Snow: 0mm Sep Precipitation: 34mm Snow: 3mm Oct Precipitation: 51mm Snow: 16mm Nov Precipitation: 60mm Snow: 46mm Dec Precipitation: 66mm Snow: 65mm
Precipitation
Snow

South Fork Ranch Airport is a relatively dry area, receiving approximately 668mm of precipitation annually, which averages out to around 56mm per month. The wettest month is February, averaging 107mm of rainfall. January and March also tend to see above-average precipitation. The driest month is July, with just 7mm. That's 100mm less than February, 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. South Fork Ranch Airport receives heavy snowfall, accumulating around 419cm annually from January through December. The snowiest month is February, with approximately 99cm. Winter travel should account for significant snow cover.

Wind

0km/h 5km/h Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Jan Wind Speed: 2km/h Feb Wind Speed: 2km/h Mar Wind Speed: 2km/h Apr Wind Speed: 2km/h May Wind Speed: 2km/h Jun Wind Speed: 2km/h Jul Wind Speed: 2km/h Aug Wind Speed: 2km/h Sep Wind Speed: 2km/h Oct Wind Speed: 2km/h Nov Wind Speed: 2km/h Dec Wind Speed: 2km/h
Wind Speed

South Fork Ranch Airport is relatively calm, with an average annual wind speed of 2km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is June, averaging 2km/h, though still comfortable for most outdoor activities. The calmest conditions occur in January, with average winds dropping to 2km/h, making it an ideal period for wind-sensitive activities. There is moderate seasonal variation in wind speed, with a 0km/h gap between the calmest and windiest months.

Seasons

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

73 days until Autumn

It is currently summer in South Fork Ranch Airport, which began on June 21, 2026. South Fork Ranch 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 July at around 27°C, while the coldest stretch bottoms out in December near -12°C. Autumn is next, beginning on September 23, 2026 — 73 days from now.

Spring

Temperatures range from -5 to 15°C. Precipitation is moderate at around 207mm for the season, averaging 69mm per month. Winds are generally light, averaging 2km/h. Light layers work well as temperatures warm through the season — a great time to be outdoors.

Summer

Temperatures range from 5 to 27°C. Rainfall is relatively light, with around 47mm over the season and a monthly average of 16mm. Winds are generally light, averaging 2km/h. Comfortable clothing with a light layer for cooler evenings is all you need.

Autumn

Temperatures range from -6 to 20°C. Rainfall is relatively light, with around 145mm over the season and a monthly average of 48mm. Expect around 65cm of snow accumulation during this period. Winds are generally light, averaging 2km/h. Layered clothing works best as temperatures gradually cool — enjoy the crisp air and changing scenery.

Winter

Temperatures range from -12 to -1°C. Precipitation is moderate at around 270mm for the season, averaging 90mm per month. Expect around 259cm of snow accumulation during this period. Winds are generally light, averaging 2km/h. Heavy layering and insulated outerwear are essential — exposed skin should be minimised outdoors.

Best Time to Visit

Jan -6°
Feb -5°
Mar -1°
Apr
May
Jun 13°
Jul 18°
Aug 18°
Sep 12°
Oct
Nov -1°
Dec -8°

The best time to visit South Fork Ranch Airport is during July and August, when the weather is most comfortable for travellers. During these months, average temperatures hover around 18°C with modest rainfall averaging 9mm per month. By contrast, December can be quite cold with temperatures dropping to -12°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 South Fork Ranch 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
-2 °C
2 km/h
96 mm
94 cm
Feb
-8 °C
-1 °C
2 km/h
107 mm
99 cm
Mar
-5 °C
4 °C
2 km/h
88 mm
63 cm
Apr
-2 °C
9 °C
2 km/h
53 mm
21 cm
May
1 °C
15 °C
2 km/h
66 mm
8 cm
Jun
5 °C
21 °C
2 km/h
29 mm
4 cm
Jul Current
9 °C
27 °C
2 km/h
7 mm
0 cm
Aug
9 °C
27 °C
2 km/h
11 mm
0 cm
Sep
5 °C
20 °C
2 km/h
34 mm
3 cm
Oct
-1 °C
11 °C
2 km/h
51 mm
16 cm
Nov
-6 °C
4 °C
2 km/h
60 mm
46 cm
Dec
-12 °C
-3 °C
2 km/h
66 mm
65 cm
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