Fort Peck, MT

Climate overview — based on NOAA 1991-2020 normals from FT PECK PWR PLT, MT 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

Fort Peck has an annual average temperature of 46.5°F with about 13.6 inches of precipitation per year. The warmest month is July (average high 88.6°F), and the coldest is January (average low 7.5°F). June is typically the wettest month (2.67 in) and January the driest (0.30 in).

Pleasant months
1 / 12
avg high 65–80°F, low ≥ 50°F
Annual swing
55.6°F
warmest to coldest month
Heating need
7,173
Cooling need
522

Best time to visit Fort Peck

Full guide →

Climate change signal

All-time records →

47 of 366 (12.8%) of Fort Peck'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.

1950s
12
1960s
39
1970s
28
1980s
72
1990s
67
2000s
81
2010s
39
2020s
28

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 28.3°F 7.5°F 17.9°F 0.30 in 5
February 33.2°F 11.6°F 22.4°F 0.30 in 4
March 46.2°F 22.4°F 34.3°F 0.38 in 4
April 60.0°F 33.7°F 46.9°F 0.92 in 6
May 70.7°F 43.8°F 57.2°F 2.52 in 10
June 79.6°F 53.0°F 66.3°F 2.67 in 11
July 88.6°F 58.5°F 73.5°F 2.39 in 8
August 88.3°F 56.8°F 72.6°F 1.40 in 6
September 76.6°F 47.6°F 62.1°F 1.05 in 6
October 60.9°F 36.6°F 48.8°F 0.94 in 6
November 44.1°F 23.7°F 33.9°F 0.36 in 4
December 32.3°F 12.5°F 22.4°F 0.35 in 5

Climate twins of Fort Peck

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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