Climate Insights for Riddle Airport

Whatcom County, Idaho, United States

Hottest
July
32°C peak
Coldest
December
-9°C low
Wettest
May
57mm rain
Best to Visit
June, July, August
Mild temps & low rain

Climate Overview

The climate in Riddle Airport is cool. The average annual temperature is 9°C and approximately 404mm of precipitation falls per year. May is the wettest month, receiving around 57mm of rainfall. Riddle 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 -9°C. Snowfall occurs from January to December, with around 153cm accumulating over the season.

Temperature

-10° 10° 20° 30° 40° Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Jan Max: 1° Average: -3° Min: -6° Feb Max: 3° Average: -2° Min: -6° Mar Max: 9° Average: 3° Min: -1° Apr Max: 15° Average: 8° Min: 2° May Max: 19° Average: 12° Min: 6° Jun Max: 26° Average: 17° Min: 10° Jul Max: 32° Average: 24° Min: 15° Aug Max: 31° Average: 23° Min: 15° Sep Max: 25° Average: 16° Min: 9° Oct Max: 16° Average: 8° Min: 2° Nov Max: 9° Average: 3° Min: -2° Dec Max: 0° Average: -5° Min: -9°
Max
Average
Min

Riddle Airport has a wide annual temperature range, spanning 41°C from the coldest to warmest months. The warmest month is July, when average highs reach 32°C and the mean temperature sits around 24°C. The coldest month is December, when overnight lows fall to -9°C and the daily average is -5°C. On average, daily temperatures fluctuate by about 13°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: 50mm Snow: 36mm Feb Precipitation: 34mm Snow: 26mm Mar Precipitation: 40mm Snow: 17mm Apr Precipitation: 50mm Snow: 11mm May Precipitation: 57mm Snow: 2mm Jun Precipitation: 32mm Snow: 1mm Jul Precipitation: 4mm Snow: 0mm Aug Precipitation: 6mm Snow: 0mm Sep Precipitation: 20mm Snow: 0mm Oct Precipitation: 31mm Snow: 3mm Nov Precipitation: 37mm Snow: 21mm Dec Precipitation: 44mm Snow: 35mm
Precipitation
Snow

Riddle Airport is a relatively dry area, receiving approximately 404mm of precipitation annually, which averages out to around 34mm per month. The wettest month is May, averaging 57mm of rainfall. April and January also tend to see above-average precipitation. The driest month is July, with just 4mm. That's 53mm less than May, 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 153cm accumulating over the season. January typically sees the most snow at around 36cm.

Wind

0km/h 5km/h Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Jan Wind Speed: 4km/h Feb Wind Speed: 5km/h Mar Wind Speed: 4km/h Apr Wind Speed: 4km/h May Wind Speed: 4km/h Jun Wind Speed: 4km/h Jul Wind Speed: 3km/h Aug Wind Speed: 3km/h Sep Wind Speed: 3km/h Oct Wind Speed: 4km/h Nov Wind Speed: 4km/h Dec Wind Speed: 4km/h
Wind Speed

Riddle Airport is relatively calm, with an average annual wind speed of 4km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is February, averaging 5km/h, though still comfortable for most outdoor activities. The calmest conditions occur in August, with average winds dropping to 3km/h, making it an ideal period for wind-sensitive activities. There is moderate seasonal variation in wind speed, with a 2km/h gap between the calmest and windiest months.

Seasons

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

75 days until Autumn

It is currently summer in Riddle Airport, which began on June 21, 2026. Riddle 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 -9°C. Autumn is next, beginning on September 23, 2026 — 75 days from now.

Spring

Temperatures range from -1 to 19°C. Rainfall is relatively light, with around 146mm over the season and a monthly average of 49mm. Winds are generally light, averaging 4km/h. Light layers work well as temperatures warm through the season — a great time to be outdoors.

Summer

Temperatures range from 10 to 32°C. Precipitation is minimal, with only around 42mm for the entire season. Winds are generally light, averaging 3km/h. Light, breathable clothing is ideal — perfect conditions for outdoor activities.

Autumn

Temperatures range from -2 to 25°C. Rainfall is relatively light, with around 88mm over the season and a monthly average of 29mm. Expect around 24cm of snow accumulation during this period. Winds are generally light, averaging 4km/h. Layered clothing works best as temperatures gradually cool — enjoy the crisp air and changing scenery.

Winter

Temperatures range from -9 to 3°C. Rainfall is relatively light, with around 128mm over the season and a monthly average of 43mm. Expect around 97cm of snow accumulation during this period. Winds are generally light, averaging 4km/h. Warm winter clothing and waterproof boots are a must, and travel may be affected by snow.

Best Time to Visit

Jan -3°
Feb -2°
Mar
Apr
May 12°
Jun 17°
Jul 24°
Aug 23°
Sep 16°
Oct
Nov
Dec -5°

The best time to visit Riddle Airport is during June, July, August and September, when the weather is most comfortable for travellers. During these months, average temperatures hover around 20°C with modest rainfall averaging 15mm per month. By contrast, December can be quite cold with temperatures dropping to -9°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 Riddle 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
-6 °C
1 °C
4 km/h
50 mm
36 cm
Feb
-6 °C
3 °C
5 km/h
34 mm
26 cm
Mar
-1 °C
9 °C
4 km/h
40 mm
17 cm
Apr
2 °C
15 °C
4 km/h
50 mm
11 cm
May
6 °C
19 °C
4 km/h
57 mm
2 cm
Jun
10 °C
26 °C
4 km/h
32 mm
1 cm
Jul Current
15 °C
32 °C
3 km/h
4 mm
0 cm
Aug
15 °C
31 °C
3 km/h
6 mm
0 cm
Sep
9 °C
25 °C
3 km/h
20 mm
0 cm
Oct
2 °C
16 °C
4 km/h
31 mm
3 cm
Nov
-2 °C
9 °C
4 km/h
37 mm
21 cm
Dec
-9 °C
0 °C
4 km/h
44 mm
35 cm
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