Ahtanum, WA Weather

Ahtanum, WA climate is mild during summer when temperatures tend to be in the 60's and very cold during winter when temperatures tend to be in the 30's.

The warmest month of the year is July with an average maximum temperature of 87.20 degrees Fahrenheit, while the coldest month of the year is January with an average minimum temperature of 20.50 degrees Fahrenheit.

Temperature variations between night and day tend to be relatively big during summer with a difference that can reach 36 degrees Fahrenheit, and fairly limited during winter with an average difference of 19 degrees Fahrenheit.

The annual average precipitation at Ahtanum is 8.26 Inches. Rainfall in is fairly evenly distributed throughout the year. The wettest month of the year is December with an average rainfall of 1.38 Inches.

Weather Data

Current Conditions

(Updated: 11:53 PM PST MON NOV 23 2009)

Fair, 34°F	Humidity: 89%	Dewpoint: 31°F
	Wind Speed: W 5.8 MPH (5 KT)	Heat Index: 34°F
	Barometer: 30.30 in.	Wind Chill: 29°F

Weather Forecast

(Generated: 9:02 PM PST MON NOV 23 2009)

		Tonight: Cloudy with isolated rain showers and snow showers. Lows 29 to 34. Southeast wind 5 to 15 mph. Chance of precipitation 20 percent.
	Lo: 32°F
	Hi: 50°F	Tuesday: Mostly cloudy. A 20 percent chance of rain showers and snow showers in the morning. Snow level 2000 feet in the morning. Highs 47 to 52. Light wind.
	Lo: 32°F
	Hi: 44°F	Wednesday: Mostly cloudy. Patchy fog and freezing fog. Highs 40 to 46. Light wind becoming southeast 5 to 10 mph in the afternoon.
	Lo: 33°F
	Hi: 43°F	Thanksgiving day: Mostly cloudy. Patchy fog. Highs 40 to 45.
	Lo: 32°F
	Hi: 46°F	Friday: Mostly cloudy. A slight chance of showers. Highs 43 to 48.
	Lo: 27°F
	Hi: 45°F	Saturday: Partly cloudy. Lows 24 to 29. Highs 42 to 47.
	Lo: 27°F
	Hi: 45°F	Saturday: Partly cloudy. Lows 24 to 29. Highs 42 to 47.
	Lo: 27°F

Moon, Sunrise and Sunset

	Moon Phase: Waxing Gibbous Moon	Civil Twilight: 6:42 AM PST	Sunrise: 7:16 AM PST
		Sunset: 4:21 PM PST	Civil Twilight: 4:54 PM PST

Normal Climate

Normal Temperatures

(YAKIMA MUNICIPAL AP Weather station, 3.44 miles from Ahtanum)

Month	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec	Annual
Max °F	37.7	45.6	56.0	64.1	72.4	79.6	87.2	86.5	77.6	64.3	47.7	37.1	63.0
Mean °F	29.1	35.2	42.5	48.7	56.2	62.9	69.1	68.3	60.0	48.6	37.0	28.8	48.9
Min °F	20.5	24.7	28.9	33.2	40.0	46.2	50.9	50.1	42.3	32.9	26.3	20.5	34.7

Normal Precipitation