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United States of America

RICHLAND, WASHINGTON


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Elevation: 119 meters     Latitude: 46 18N     Longitude: 119 18W
Köppen Classification: Tropical and Subtropical Steppe Climate

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This climate type occurs primarily on the periphery of the true deserts in low-latitude semiarid steppe regions. It is transitional to the tropical wet-dry climate on the equatorward side and to the mediterranean climate on its poleward margin, with a cooler, wetter winter resulting from the higher latitude and mid-latitude frontal cyclone activity. Annual precipitation totals are greater than in tropical and subtropical desert climates. Yearly variations in amount are not as extreme as in the true deserts but are nevertheless large.

The Köppen Climate Classification subtype for this climate is "BSk". (Tropical and Subtropical Steppe Climate).

The average temperature for the year in Richland is 53.2°F (11.8°C). The warmest month, on average, is July with an average temperature of 73.7°F (23.2°C). The coolest month on average is December, with an average temperature of 32.8°F (0.4°C).

The highest recorded temperature in Richland is 110.0°F (43.3°C), which was recorded in June. The lowest recorded temperature in Richland is -22.0°F (-30°C), which was recorded in February.

The average amount of precipitation for the year in Richland is 7.6" (193 mm). The month with the most precipitation on average is December with 1.1" (27.9 mm) of precipitation. The month with the least precipitation on average is August with an average of 0.2" (5.1 mm). There are an average of 79.7 days of precipitation, with the most precipitation occurring in December with 11.2 days and the least precipitation occurring in August with 2.4 days.

In terms of liquid precipitation, there are an average of 20.8 days of rain, with the most rain occurring in January with 2.9 days of rain, and the least rain occurring in July with 0.7 days of rain.

In Richland, there's an average of 6.4" of snow (0 cm). The month with the most snow is December, with 2.3" of snow (5.8 cm).



Koppen Chart


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