Climate Insights for Chinook Farms Airport

Sweetwater County, Washington, United States

Hottest
July
32°C peak
Coldest
December
-4°C low
Wettest
December
74mm rain
Best to Visit
May, June, July
Mild temps & low rain

Climate Overview

The climate in Chinook Farms Airport is temperate. The average annual temperature is 10°C and approximately 394mm of precipitation falls per year. December is the wettest month, receiving around 74mm of rainfall. Chinook Farms 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 -4°C. Snowfall occurs from January to December, with around 84cm accumulating over the season.

Temperature

-10° 10° 20° 30° 40° Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Jan Max: 3° Average: -1° Min: -4° Feb Max: 6° Average: 1° Min: -2° Mar Max: 11° Average: 5° Min: 0° Apr Max: 16° Average: 10° Min: 4° May Max: 23° Average: 15° Min: 9° Jun Max: 27° Average: 19° Min: 12° Jul Max: 32° Average: 23° Min: 15° Aug Max: 31° Average: 22° Min: 15° Sep Max: 25° Average: 17° Min: 10° Oct Max: 17° Average: 10° Min: 5° Nov Max: 8° Average: 3° Min: 0° Dec Max: 2° Average: -1° Min: -4°
Max
Average
Min

Chinook Farms Airport has a wide annual temperature range, spanning 36°C from the coldest to warmest months. The warmest month is July, when average highs reach 32°C and the mean temperature sits around 23°C. The coldest month is December, when overnight lows fall to -4°C and the daily average is -1°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: 71mm Snow: 27mm Feb Precipitation: 47mm Snow: 15mm Mar Precipitation: 36mm Snow: 6mm Apr Precipitation: 24mm Snow: 2mm May Precipitation: 18mm Snow: 0mm Jun Precipitation: 10mm Snow: 0mm Jul Precipitation: 2mm Snow: 0mm Aug Precipitation: 5mm Snow: 0mm Sep Precipitation: 12mm Snow: 0mm Oct Precipitation: 39mm Snow: 0mm Nov Precipitation: 55mm Snow: 8mm Dec Precipitation: 74mm Snow: 25mm
Precipitation
Snow

Chinook Farms Airport is a quite dry location, receiving approximately 394mm of precipitation annually, which averages out to around 33mm per month. The wettest month is December, averaging 74mm of rainfall. January and November also tend to see above-average precipitation. The driest month is July, with just 2mm. That's 72mm 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 84cm accumulating over the season. January typically sees the most snow at around 27cm.

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: 9km/h Feb Wind Speed: 13km/h Mar Wind Speed: 14km/h Apr Wind Speed: 17km/h May Wind Speed: 18km/h Jun Wind Speed: 19km/h Jul Wind Speed: 19km/h Aug Wind Speed: 17km/h Sep Wind Speed: 15km/h Oct Wind Speed: 13km/h Nov Wind Speed: 11km/h Dec Wind Speed: 9km/h
Wind Speed

Chinook Farms Airport is mildly breezy, with an average annual wind speed of 15km/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 19km/h, though still comfortable for most outdoor activities. The calmest conditions occur in December, with average winds dropping to 9km/h, making it an ideal period for wind-sensitive activities. Wind speeds vary significantly across the year, with a 10km/h difference between the calmest and windiest months. This level of variation is worth factoring into travel plans. Wind tends to pick up during the summer months. The seasonal averages are 11km/h in winter, 17km/h in spring, 18km/h in summer, 13km/h in autumn.

Seasons

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

91 days until Summer

It is currently spring in Chinook Farms Airport, which began on March 20, 2026. Chinook Farms 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 32°C, while the coldest stretch bottoms out in December near -4°C. Summer is next, beginning on June 21, 2026 — 91 days from now.

Spring

Temperatures range from 0 to 23°C. Rainfall is relatively light, with around 78mm over the season and a monthly average of 26mm. Winds are moderate at around 17km/h. Light layers work well as temperatures warm through the season — a great time to be outdoors.

Summer

Temperatures range from 12 to 32°C. Precipitation is minimal, with only around 17mm for the entire season. Winds are moderate at around 18km/h. Light, breathable clothing is ideal — perfect conditions for outdoor activities.

Autumn

Temperatures range from 0 to 25°C. Rainfall is relatively light, with around 106mm over the season and a monthly average of 35mm. Expect around 9cm of snow accumulation during this period. Winds are generally light, averaging 13km/h. Layered clothing works best as temperatures gradually cool — enjoy the crisp air and changing scenery.

Winter

Temperatures range from -4 to 6°C. Precipitation is moderate at around 193mm for the season, averaging 64mm per month. Expect around 67cm of snow accumulation during this period. Winds are generally light, averaging 11km/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 10°
May 15°
Jun 19°
Jul 23°
Aug 22°
Sep 17°
Oct 10°
Nov
Dec -1°

The best time to visit Chinook Farms Airport is during May, June, July, August and September, when the weather is most comfortable for travellers. During these months, average temperatures hover around 19°C with modest rainfall averaging 9mm per month. By contrast, December can be quite cold with temperatures dropping to -4°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 Chinook Farms 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
-4 °C
3 °C
9 km/h
71 mm
27 cm
Feb
-2 °C
6 °C
13 km/h
47 mm
15 cm
Mar Current
0 °C
11 °C
14 km/h
36 mm
6 cm
Apr
4 °C
16 °C
17 km/h
24 mm
2 cm
May
9 °C
23 °C
18 km/h
18 mm
0 cm
Jun
12 °C
27 °C
19 km/h
10 mm
0 cm
Jul
15 °C
32 °C
19 km/h
2 mm
0 cm
Aug
15 °C
31 °C
17 km/h
5 mm
0 cm
Sep
10 °C
25 °C
15 km/h
12 mm
0 cm
Oct
5 °C
17 °C
13 km/h
39 mm
0 cm
Nov
0 °C
8 °C
11 km/h
55 mm
8 cm
Dec
-4 °C
2 °C
9 km/h
74 mm
25 cm
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Metric (°C, km/h)