Mackay, ID

Climate overview — based on NOAA 1991-2020 normals from MACKAY LOST RVR RS, ID US.

BSk Semi-arid (cold) climate 6a USDA hardiness Zone 6a

Year-round temperatures (°F)

20° 40° 60° 80° J F M A M J J A S O N D
Avg high Avg low

Climate summary

Mackay has an annual average temperature of 42.2°F with about 9.9 inches of precipitation per year. The warmest month is July (average high 83.3°F), and the coldest is January (average low 8.4°F). June is typically the wettest month (1.45 in) and February the driest (0.51 in).

Annual swing
47.6°F
warmest to coldest month
Heating need
8,238
Cooling need
48

Best time to visit Mackay

Full guide →

Climate change signal

All-time records →

46 of 366 (12.6%) of Mackay's all-time daily heat records have been set since 2015. If records were spread evenly across the station's history, only about 5% would fall in any given decade.

1900s
0
1910s
50
1920s
43
1930s
101
1940s
24
1950s
10
1960s
15
1970s
15
1980s
30
1990s
22
2000s
5
2010s
8
2020s
43

Bars: number of all-time daily heat records still standing that were set in each decade.

Monthly averages

Month Avg High Avg Low Avg Temp Precipitation Snow Rainy days
January 29.6°F 8.4°F 19.0°F 0.75 in 6
February 34.4°F 12.2°F 23.3°F 0.51 in 6
March 43.9°F 21.8°F 32.9°F 0.72 in 5
April 54.5°F 29.0°F 41.8°F 0.88 in 7
May 64.6°F 37.0°F 50.8°F 1.23 in 8
June 72.7°F 43.3°F 58.0°F 1.45 in 7
July 83.3°F 49.8°F 66.6°F 0.65 in 5
August 81.5°F 47.9°F 64.7°F 0.68 in 5
September 72.1°F 40.4°F 56.3°F 0.77 in 5
October 57.8°F 30.7°F 44.2°F 0.84 in 5
November 41.1°F 19.3°F 30.2°F 0.53 in 6
December 29.0°F 9.5°F 19.2°F 0.87 in 7

Climate twins of Mackay

Why these? →

The most climatically similar US cities at least 140 miles away (by monthly temperature + precipitation pattern).

Frost dates
Last spring / first fall frost
All-time records
Hottest, coldest, wettest
Planting calendar
What to plant, and when

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