Weather and climate in Airway Heights, WA

Local time 10:48 am PST 47.64° N, 117.59° W
Best for stargazingSep, Oct, AugMost clear, dark hours
Warmest monthJulyAverage high 85°F
Coolest monthDecemberAverage low 21°F
Wettest monthDecember3.0 in on average

What the weather is like in Airway Heights

The warmest month in Airway Heights is July, with average highs of 85°F. The coolest is December, when nights average 21°F. About 21.7 in of rain and snow falls in a typical year, most in December and least in July.

Skies are clearest in July (30% average cloud cover) and cloudiest in December (79%). Combining cloud with the length of truly dark nights, September, October, August offer the most clear, dark hours for stargazing.

Clear, dark hours per night

Hours of full astronomical darkness in mid-month, multiplied by the average share of clear sky. A rough guide to how much good observing time a typical night offers.

Monthly averages

MonthHighLowPrecipitationCloud coverHumidityWindDark hours
January 33°F 21°F 2.8 in 79% 93% 5 mph 11.5 h
February 37°F 22°F 1.8 in 72% 86% 5 mph 10.2 h
March 47°F 28°F 2.5 in 74% 79% 5 mph 8.6 h
April 56°F 34°F 1.7 in 69% 69% 5 mph 6.5 h
May 67°F 43°F 1.9 in 62% 64% 5 mph 4.0 h
June 73°F 50°F 1.6 in 57% 60% 5 mph 1.8 h
July 85°F 57°F 0.4 in 30% 50% 4 mph 3.1 h
August 83°F 56°F 0.6 in 35% 48% 4 mph 5.6 h
September 73°F 47°F 0.8 in 46% 54% 4 mph 7.9 h
October 57°F 36°F 1.9 in 61% 68% 4 mph 9.7 h
November 42°F 28°F 2.7 in 76% 83% 5 mph 11.1 h
December 32°F 21°F 3.0 in 79% 91% 4 mph 11.8 h

Climate averages: NASA POWER, 2001–2025, for the grid area around 47.50, -117.50 (about 50 km across). High and low temperatures are estimated from the monthly mean and the average daily range. Hills, coasts and cities can differ from the area average. Aurora outlook for Airway Heights · Sources and methods.