August Weather in Kelso, United States

Last updated: June 24, 2025

In Kelso, United States, the average temperature in August is a pleasant 19°C (66°F). During this time, temperatures can range from a cool 8°C (46°F) to a sizzling 38°C (100°F). Expect some drizzle with an average precipitation of 10 mm (0.4 in) over 2 days, and take note of the average humidity, which hovers around 73%. Enjoy the mild climate!

August Temperature in Kelso

In August in Kelso, the average temperature is 19°C (66°F). Maximum temperatures can reach 38°C (100°F), while minimums can drop as low as 8°C (46°F). This range makes it advisable for travelers to pack both light clothing for the warm days and warmer layers for cooler evenings.

August Weather in Kelso: Daily Temperature Highs, Lows, and Averages

The chart illustrates August temperature patterns in Kelso, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Kelso, August typically has an average temperature of 19°C (66°F), with highs reaching up to 38°C (100°F) and lows dropping to around 8°C (46°F).

Data source: Temperature data for Kelso generated using information from the Copernicus Climate Change Service.

August Precipitation in Kelso

In Kelso in August, the precipitation amount is 10 mm (0.4 in) over a period of 2 days.

August Precipitation Trends in Kelso

The chart displays monthly precipitation patterns in Kelso, with values for each month alongside August’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how August’s conditions compare to those of other months. In Kelso, August typically receives around 10 mm (0.4 inches) of precipitation spread over approximately 2 days.

Data source: Precipitation data for August generated using information from the Copernicus Climate Change Service.

Choose your preferred precipitation unit

Millimeters (mm) Inches (in)

August Humidity in Kelso

In Kelso in August humidity is 73%. With an average temperature of 19°C (66°F), this humidity feels like a warm embrace, making travel enjoyable yet slightly sticky, as you find yourself seeking shade and refreshing drinks while exploring.

August Average Humidity in Kelso

This chart illustrates the average monthly humidity levels in Kelso, with August’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In August, average humidity in Kelso is approximately 73%, offering insight into how humid the weather typically is during this month.

Data source: Humidity data for August generated using information from the Copernicus Climate Change Service.

August UV Index in Kelso

In Kelso in August, the maximum UV index is 8, which corresponds to a very high Exposure Category. This means that the time to burn is only 15 minutes. For more detailed information, you can refer to the Hourly UV Index in Kelso.

Maximum UV Index Levels in Kelso for August

The chart shows the monthly maximum UV Index (UVI) for Kelso in August, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues. In August, the maximum UV index in Kelso typically reaches 8, which falls under the very high exposure category.

Data source: Kelso August UVI data generated using information from the Copernicus Climate Change Service.

UV Risk Categories

Extreme (11+): Avoid the sun, stay in shade.
Very High (8-10): Limit sun exposure.
High (6-7): Use SPF 30+ and protective clothing.
Moderate (3-5): Midday shade recommended.
Low (0-2): No protection needed.

How August Weather in Kelso Compares to Other Months

Weather in Kelso varies notably across the year, with each month offering distinct climate conditions. This page compares August’s weather to other months in Kelso, focusing on differences in temperature, rainfall, humidity, and UV levels.

This table compares monthly weather conditions in Kelso, showing how August’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	5°C (41°F)	190 mm (7.5 inches)	86%	low
February Weather	4°C (40°F)	175 mm (6.9 inches)	84%	moderate
March Weather	7°C (45°F)	150 mm (5.9 inches)	85%	moderate
April Weather	10°C (50°F)	125 mm (4.9 inches)	83%	high
May Weather	13°C (56°F)	74 mm (2.9 inches)	84%	very high
June Weather	16°C (61°F)	59 mm (2.3 inches)	84%	very high
July Weather	18°C (65°F)	10 mm (0.4 inches)	82%	very high
August Weather	19°C (66°F)	10 mm (0.4 inches)	73%	very high
September Weather	16°C (61°F)	84 mm (3.3 inches)	74%	high
October Weather	10°C (51°F)	132 mm (5.2 inches)	83%	moderate
November Weather	7°C (45°F)	179 mm (7.0 inches)	86%	moderate
December Weather	4°C (40°F)	202 mm (8.0 inches)	87%	low