Garner, IA

Climate overview — based on NOAA 1991-2020 normals from BRITT 3E, IA US.

Dfa Hot-summer humid continental 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

Garner has an annual average temperature of 45.5°F with about 34.3 inches of precipitation per year. The warmest month is July (average high 82.4°F), and the coldest is January (average low 6.3°F). June is typically the wettest month (5.41 in) and January the driest (0.77 in).

Pleasant months
3 / 12
avg high 65–80°F, low ≥ 50°F
Annual swing
57.2°F
warmest to coldest month
Heating need
7,485
Cooling need
462

Best time to visit Garner

Full guide →

Climate change signal

All-time records →

4 of 366 (1.1%) of Garner'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.

1890s
8
1900s
12
1910s
20
1920s
26
1930s
98
1940s
39
1950s
24
1960s
24
1970s
18
1980s
34
1990s
20
2000s
27
2010s
16
2020s
0

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 23.7°F 6.3°F 15.0°F 0.77 in 7
February 27.9°F 10.3°F 19.1°F 1.48 in 6
March 41.1°F 22.7°F 31.9°F 2.14 in 8
April 56.5°F 34.3°F 45.4°F 3.88 in 11
May 69.1°F 47.6°F 58.3°F 4.48 in 13
June 79.3°F 58.4°F 68.8°F 5.41 in 12
July 82.4°F 62.0°F 72.2°F 4.24 in 10
August 79.5°F 59.2°F 69.4°F 3.57 in 10
September 73.4°F 50.3°F 61.9°F 3.21 in 9
October 59.7°F 37.4°F 48.6°F 2.56 in 8
November 43.2°F 24.7°F 34.0°F 1.43 in 7
December 29.8°F 12.9°F 21.3°F 1.13 in 7

Climate twins of Garner

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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