Luther, IA

Climate overview — based on NOAA 1991-2020 normals from AMES 8 WSW, IA US.

Dfa Hot-summer humid continental climate 6b USDA hardiness Zone 6b

Year-round temperatures (°F)

10° 30° 50° 70° 90° J F M A M J J A S O N D
Avg high Avg low

Climate summary

Luther has an annual average temperature of 49.5°F with about 35.9 inches of precipitation per year and 32.7 inches of snow. The warmest month is July (average high 83.9°F), and the coldest is January (average low 11.9°F). May is typically the wettest month (4.99 in) and January the driest (0.69 in). Snow typically falls from October through April.

Pleasant months
2 / 12
avg high 65–80°F, low ≥ 50°F
Annual swing
53.6°F
warmest to coldest month
Heating need
6,258
Cooling need
666

Best time to visit Luther

Full guide →

Climate change signal

All-time records →

94 of 366 (25.7%) of Luther'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.

1960s
37
1970s
51
1980s
71
1990s
35
2000s
45
2010s
62
2020s
65

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 28.9°F 11.9°F 20.4°F 0.69 in 7.8 in 6
February 33.6°F 16.1°F 24.9°F 1.02 in 10.0 in 6
March 47.7°F 27.7°F 37.7°F 2.01 in 4.2 in 8
April 62.0°F 38.6°F 50.3°F 3.89 in 1.3 in 12
May 72.5°F 50.7°F 61.6°F 4.99 in 13
June 81.3°F 60.9°F 71.1°F 4.89 in 11
July 83.9°F 64.1°F 74.0°F 4.53 in 9
August 81.8°F 61.8°F 71.8°F 4.75 in 10
September 77.0°F 53.5°F 65.3°F 3.47 in 9
October 64.1°F 41.4°F 52.8°F 2.63 in 0.5 in 9
November 47.5°F 28.6°F 38.1°F 1.86 in 2.0 in 7
December 33.7°F 17.5°F 25.6°F 1.17 in 6.9 in 6

Climate twins of Luther

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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