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Nestled in the eastern part of Washington state, Kennewick offers a fascinating climate that showcases the dramatic temperature variations of the Pacific Northwest. Located in the Tri-Cities region at the confluence of the Yakima, Snake, and Columbia rivers, this city experiences a unique arid continental climate that brings both extreme heat and cold throughout the year.
Temperature Characteristics of Kennewick
Kennewick’s temperature profile is defined by its remarkable seasonal shifts. The annual temperature range spans from a chilly -3°C to a scorching 34°C, creating a dynamic weather experience for residents and visitors alike. The city’s geographical location contributes to its distinctive climate, with minimal oceanic influence resulting in more pronounced temperature extremes.
Seasonal Temperature Breakdown
| Season | Temperature Range | Typical Characteristics |
|---|---|---|
| Winter | -3°C to 5°C | Cold with occasional extreme cold waves |
| Spring | 5°C to 20°C | Mild and gradually warming |
| Summer | 20°C to 34°C | Hot, dry, and mostly clear |
| Autumn | 5°C to 20°C | Cooling temperatures with minimal precipitation |
Extreme Temperature Events
Kennewick is no stranger to temperature extremes. In winter, temperatures can plummet to as low as -20°C, with historical records showing even more dramatic drops. The nearby Pasco Tri-Cities airport has recorded temperatures as low as -28.3°C in January 2004.
Summers are equally intense. July is typically the hottest month, with average high temperatures reaching 33°C. The city has experienced remarkable heat waves, with temperatures occasionally soaring above 39°C. During the exceptional heat wave of late June 2021, temperatures reached an unprecedented 46°C.
Precipitation and Humidity
Despite its temperature variations, Kennewick is remarkably dry. Annual precipitation is around 200 millimeters, classifying it almost at desert levels. The driest months are July and August, with minimal rainfall, while January sees the most precipitation with approximately 29 millimeters.
Best Times to Visit
For those looking to experience Kennewick’s most comfortable weather, May and September are ideal months. These periods offer moderate temperatures, avoiding both the intense winter cold and the scorching summer heat.
What is the average annual temperature in Kennewick?
+The average annual temperature in Kennewick is approximately 12.85°C, with significant variations between summer and winter months.
How many sunny days does Kennewick have?
+Kennewick experiences around 300 sunny days per year, with the highest sunshine hours occurring in June and July, averaging about 14 hours of sunlight daily.
Is Kennewick’s climate considered extreme?
+While not the most extreme in the United States, Kennewick does experience significant temperature variations, with potential winter lows around -20°C and summer highs exceeding 39°C.
