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American Falls, ID Weather


American Falls, ID climate is warm during summer when temperatures tend to be in the 70's and very cold during winter when temperatures tend to be in the 20's.

The warmest month of the year is July with an average maximum temperature of 86.30 degrees Fahrenheit, while the coldest month of the year is January with an average minimum temperature of 17.50 degrees Fahrenheit.

Temperature variations between night and day tend to be relatively big during summer with a difference that can reach 32 degrees Fahrenheit, and fairly limited during winter with an average difference of 16 degrees Fahrenheit.

The annual average precipitation at American Falls is 12.43 Inches. Rainfall in is fairly evenly distributed throughout the year. The wettest month of the year is May with an average rainfall of 1.60 Inches.

Weather Data

Current Conditions

(Updated: 8:53 AM MST THU DEC 4 2008)

Fair Fair, 25°F Humidity: 72% Dewpoint: 17°F
Wind Speed: NE 13 MPH Heat Index: 25°F
Barometer: 30.28 in. Wind Chill: 14°F

Weather Forecast

(Generated: 9:15 AM MST THU DEC 04 2008)
Hi: 33°F Rest of today: Mostly sunny. Highs 28 to 37. North winds 10 to 15 mph.
Lo: 20°F
Hi: 38°F Friday: Partly sunny. Highs 34 to 41. South winds up to 10 mph...Shifting to southwest in the afternoon.
Lo: 24°F
Hi: 44°F Saturday: Mostly sunny. Highs 40 to 47. Southwest winds 10 to 15 mph.
Lo: 28°F
Hi: 43°F Sunday: Partly sunny with a slight chance of rain and snow. Highs 39 to 46.
Lo: 32°F
Hi: 39°F Monday: Partly sunny with a slight chance of rain showers and snow showers. Highs 35 to 42.
Lo: 28°F
Hi: 39°F Tuesday: Partly sunny with a slight chance of snow showers. Highs 35 to 42.
Lo: 29°F

Moon, Sunrise and Sunset

First Quarter Moon Moon Phase: First Quarter Moon Civil Twilight:
7:12 AM MST
Sunrise:
7:44 AM MST
Sunset:
4:57 PM MST
Civil Twilight:
5:29 PM MST

Normal Climate

Normal Temperatures

(AMERICAN FALLS 3 NW Weather station, 3.39 miles from American Falls)
Month Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Max °F 32.9 39.2 49.7 60.1 68.7 78.2 86.3 85.8 75.4 61.8 44.1 33.8 59.7
Mean °F 25.2 30.5 39.2 47.5 55.4 63.6 70.4 69.7 60.4 49.1 35.7 26.3 47.8
Min °F 17.5 21.8 28.6 34.9 42.0 48.9 54.5 53.6 45.3 36.4 27.3 18.7 35.8

Normal Precipitation

(AMERICAN FALLS 3 NW Weather station, 3.39 miles from American Falls)
Month Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Inch 1.10 0.97 1.35 1.20 1.60 0.95 0.61 0.60 0.84 0.95 1.20 1.06 12.43