Climate Insights for Depue Airport

Walla Walla County, California, United States

Hottest
July
39°C peak
Coldest
December
2°C low
Wettest
January
27mm rain
Best to Visit
April, May, October
Mild temps & low rain

Climate Overview

The climate in Depue Airport is warm and mild. The average annual temperature is 19°C and approximately 114mm of precipitation falls per year. January is the wettest month, receiving around 27mm of rainfall. Depue 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 2°C.

Temperature

10° 20° 30° 40° Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Jan Max: 15° Average: 9° Min: 3° Feb Max: 18° Average: 11° Min: 5° Mar Max: 21° Average: 13° Min: 7° Apr Max: 26° Average: 18° Min: 11° May Max: 29° Average: 21° Min: 14° Jun Max: 36° Average: 27° Min: 20° Jul Max: 39° Average: 31° Min: 23° Aug Max: 38° Average: 30° Min: 22° Sep Max: 34° Average: 26° Min: 18° Oct Max: 27° Average: 20° Min: 12° Nov Max: 20° Average: 12° Min: 5° Dec Max: 15° Average: 8° Min: 2°
Max
Average
Min

Depue Airport has a wide annual temperature range, spanning 37°C from the coldest to warmest months. July is the hottest month, with daytime highs reaching 39°C and an average of 31°C. December is the coolest month, with minimum temperatures around 2°C and an average of 8°C. On average, daily temperatures fluctuate by about 14°C between overnight lows and afternoon highs. The sharpest temperature change occurs between October and November, with a 7°C shift in average temperatures.

Precipitation

0mm 25mm 50mm Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Jan Precipitation: 27mm Feb Precipitation: 21mm Mar Precipitation: 19mm Apr Precipitation: 8mm May Precipitation: 3mm Jun Precipitation: 1mm Jul Precipitation: 3mm Aug Precipitation: 5mm Sep Precipitation: 1mm Oct Precipitation: 4mm Nov Precipitation: 5mm Dec Precipitation: 18mm
Precipitation

Depue Airport is a quite dry location, receiving approximately 114mm of precipitation annually, which averages out to around 9mm per month. The wettest month is January, averaging 27mm of rainfall. February and March also tend to see above-average precipitation. The driest month is September, with just 1mm. That's 26mm less than January, 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.

Wind

0km/h 5km/h 10km/h 15km/h 20km/h 25km/h 30km/h Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Jan Wind Speed: 19km/h Feb Wind Speed: 22km/h Mar Wind Speed: 26km/h Apr Wind Speed: 28km/h May Wind Speed: 28km/h Jun Wind Speed: 28km/h Jul Wind Speed: 26km/h Aug Wind Speed: 24km/h Sep Wind Speed: 21km/h Oct Wind Speed: 19km/h Nov Wind Speed: 19km/h Dec Wind Speed: 18km/h
Wind Speed

Depue 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 May, averaging 28km/h, noticeable enough to affect lighter outdoor activities. The calmest conditions occur in December, with average winds dropping to 18km/h, making it an ideal period for wind-sensitive activities. There is moderate seasonal variation in wind speed, with a 10km/h gap between the calmest and windiest months. Wind tends to pick up during the summer months. The seasonal averages are 20km/h in winter, 27km/h in spring, 26km/h in summer, 20km/h in autumn.

Seasons

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

87 days until Summer

It is currently spring in Depue Airport, which began on March 20, 2026. Depue 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 39°C, while the coldest stretch bottoms out in December near 2°C. Summer is next, beginning on June 21, 2026 — 87 days from now.

Spring

Temperatures range from 7 to 29°C. Precipitation is minimal, with only around 29mm for the entire season. Winds are strong, averaging 27km/h. Light layers work well as temperatures warm through the season — a great time to be outdoors.

Summer

Temperatures range from 20 to 39°C. Precipitation is minimal, with only around 9mm for the entire season. Winds are strong, averaging 26km/h. Light, breathable clothing is ideal — perfect conditions for outdoor activities.

Autumn

Temperatures range from 5 to 34°C. Precipitation is minimal, with only around 10mm for the entire season. Winds are moderate at around 20km/h. Layered clothing works best as temperatures gradually cool — enjoy the crisp air and changing scenery.

Winter

Temperatures range from 2 to 18°C. Rainfall is relatively light, with around 66mm over the season and a monthly average of 22mm. Winds are moderate at around 20km/h. A light jacket or sweater is usually sufficient, though cooler evenings may call for an extra layer.

Best Time to Visit

Jan
Feb 11°
Mar 13°
Apr 18°
May 21°
Jun 27°
Jul 31°
Aug 30°
Sep 26°
Oct 20°
Nov 12°
Dec

The best time to visit Depue Airport is during April, May and October, when the weather is most comfortable for travellers. During these months, average temperatures hover around 19°C with modest rainfall averaging 5mm per month. By contrast, July can be uncomfortably hot with highs reaching 39°C, while December is the coldest period with lows dropping to 2°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 Depue 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. 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
3 °C
15 °C
19 km/h
27 mm
0 cm
Feb
5 °C
18 °C
22 km/h
21 mm
0 cm
Mar Current
7 °C
21 °C
26 km/h
19 mm
0 cm
Apr
11 °C
26 °C
28 km/h
8 mm
0 cm
May
14 °C
29 °C
28 km/h
3 mm
0 cm
Jun
20 °C
36 °C
28 km/h
1 mm
0 cm
Jul
23 °C
39 °C
26 km/h
3 mm
0 cm
Aug
22 °C
38 °C
24 km/h
5 mm
0 cm
Sep
18 °C
34 °C
21 km/h
1 mm
0 cm
Oct
12 °C
27 °C
19 km/h
4 mm
0 cm
Nov
5 °C
20 °C
19 km/h
5 mm
0 cm
Dec
2 °C
15 °C
18 km/h
18 mm
0 cm
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Metric (°C, km/h)