Climate Insights for Blackwell-Tonkawa Municipal Airport

Walla Walla County, Oklahoma, United States

Hottest
Luglio
34°C peak
Coldest
Gennaio
-2°C low
Wettest
Maggio
172mm rain
Best to Visit
Aprile, Settembre, Ottobre
Mild temps & low rain

Climate Overview

The climate in Blackwell-Tonkawa Municipal Airport is temperate. The average annual temperature is 16°C and approximately 880mm of precipitation falls per year. Blackwell-Tonkawa Municipal Airport receives a notable amount of rainfall throughout the year, including during its driest month. Blackwell-Tonkawa Municipal 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 Gennaio, Febbraio, Dicembre, when temperatures can drop to -2°C. Light snow can occur between January and December.

Temperature

-10° 10° 20° 30° 40° Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Jan Max: 9° Average: 2° Min: -2° Feb Max: 12° Average: 4° Min: -1° Mar Max: 19° Average: 11° Min: 5° Apr Max: 23° Average: 15° Min: 10° May Max: 26° Average: 20° Min: 15° Jun Max: 33° Average: 27° Min: 21° Jul Max: 34° Average: 28° Min: 23° Aug Max: 34° Average: 27° Min: 22° Sep Max: 31° Average: 24° Min: 18° Oct Max: 24° Average: 17° Min: 11° Nov Max: 17° Average: 10° Min: 5° Dec Max: 12° Average: 5° Min: 0°
Max
Average
Min

Blackwell-Tonkawa Municipal Airport has a wide annual temperature range, spanning 36°C from the coldest to warmest months. The warmest month is Luglio, when average highs reach 34°C and the mean temperature sits around 28°C. The coldest month is Gennaio, when overnight lows fall to -2°C and the daily average is 2°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 50mm 100mm 150mm 200mm Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Jan Precipitation: 39mm Snow: 5mm Feb Precipitation: 34mm Snow: 5mm Mar Precipitation: 64mm Snow: 1mm Apr Precipitation: 98mm Snow: 0mm May Precipitation: 172mm Snow: 0mm Jun Precipitation: 94mm Snow: 0mm Jul Precipitation: 69mm Snow: 0mm Aug Precipitation: 67mm Snow: 0mm Sep Precipitation: 64mm Snow: 0mm Oct Precipitation: 90mm Snow: 0mm Nov Precipitation: 54mm Snow: 1mm Dec Precipitation: 35mm Snow: 1mm
Precipitation
Snow

Blackwell-Tonkawa Municipal Airport is a moderately rainy area, receiving approximately 880mm of precipitation annually, which averages out to around 73mm per month. The wettest month is May, averaging 172mm of rainfall. April and June also tend to see above-average precipitation. The driest month is February, with just 34mm. That's 138mm 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. Light snowfall can occur between January and December, totalling around 12cm annually. February is the snowiest month with approximately 5cm.

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: 21km/h Feb Wind Speed: 23km/h Mar Wind Speed: 24km/h Apr Wind Speed: 26km/h May Wind Speed: 22km/h Jun Wind Speed: 21km/h Jul Wind Speed: 18km/h Aug Wind Speed: 18km/h Sep Wind Speed: 19km/h Oct Wind Speed: 22km/h Nov Wind Speed: 22km/h Dec Wind Speed: 21km/h
Wind Speed

Blackwell-Tonkawa Municipal Airport is moderately windy, with an average annual wind speed of 21km/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 26km/h, noticeable enough to affect lighter outdoor activities. The calmest conditions occur in August, 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 8km/h gap between the calmest and windiest months. Wind tends to be stronger during winter months, driven by seasonal pressure systems. The seasonal averages break down to 21km/h in winter, 24km/h in spring, 19km/h in summer, 21km/h in autumn.

Seasons

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

1 day until Spring

It is currently winter in Blackwell-Tonkawa Municipal Airport, which began on December 21, 2026. Blackwell-Tonkawa Municipal 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 34°C, while the coldest stretch bottoms out in Gennaio near -2°C. Spring is next, beginning on March 20, 2026 — 1 days from now.

Spring

Temperatures range from 5 to 26°C. Rainfall is heavy, totalling around 334mm across the season with a monthly average of 111mm. Winds are moderate at around 24km/h. An umbrella or waterproof jacket is advisable as spring showers are frequent.

Summer

Temperatures range from 21 to 34°C. Precipitation is moderate at around 231mm for the season, averaging 77mm per month. Winds are moderate at around 19km/h. Light, breathable clothing is ideal — perfect conditions for outdoor activities.

Autumn

Temperatures range from 5 to 31°C. Precipitation is moderate at around 207mm for the season, averaging 69mm per month. Winds are moderate at around 21km/h. Layered clothing works best as temperatures gradually cool — enjoy the crisp air and changing scenery.

Winter

Temperatures range from -2 to 12°C. Rainfall is relatively light, with around 108mm over the season and a monthly average of 36mm. Expect around 11cm of snow accumulation during this period. Winds are moderate at around 21km/h. Warm winter clothing and waterproof boots are a must, and travel may be affected by snow.

Best Time to Visit

Jan
Feb
Mar 11°
Apr 15°
May 20°
Jun 27°
Jul 28°
Aug 27°
Sep 24°
Oct 17°
Nov 10°
Dec

The best time to visit Blackwell-Tonkawa Municipal Airport is during Aprile, Settembre and Ottobre, when the weather is most comfortable for travellers. During these months, average temperatures hover around 19°C with modest rainfall averaging 84mm per month. By contrast, Luglio can be uncomfortably hot with highs reaching 34°C, while Gennaio is the coldest period with lows dropping to -2°C. Despite being the best months overall, some rain is still likely — pack a waterproof layer and plan a mix of indoor and outdoor activities.

Monthly Climate Data

The table below shows monthly climate averages for Blackwell-Tonkawa Municipal 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
-2 °C
9 °C
21 km/h
39 mm
5 cm
Feb
-1 °C
12 °C
23 km/h
34 mm
5 cm
Mar Current
5 °C
19 °C
24 km/h
64 mm
1 cm
Apr
10 °C
23 °C
26 km/h
98 mm
0 cm
May
15 °C
26 °C
22 km/h
172 mm
0 cm
Jun
21 °C
33 °C
21 km/h
94 mm
0 cm
Jul
23 °C
34 °C
18 km/h
69 mm
0 cm
Aug
22 °C
34 °C
18 km/h
67 mm
0 cm
Sep
18 °C
31 °C
19 km/h
64 mm
0 cm
Oct
11 °C
24 °C
22 km/h
90 mm
0 cm
Nov
5 °C
17 °C
22 km/h
54 mm
1 cm
Dec
0 °C
12 °C
21 km/h
35 mm
1 cm
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Metric (°C, km/h)