Glenwood, IA

Climate overview — based on NOAA 1991-2020 normals from GLENWOOD 3SW, 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

Glenwood has an annual average temperature of 50.9°F with about 34.8 inches of precipitation per year and 23.7 inches of snow. The warmest month is July (average high 86.9°F), and the coldest is January (average low 12.2°F). June is typically the wettest month (5.96 in) and January the driest (0.66 in). Snow typically falls from November through April.

Pleasant months
2 / 12
avg high 65–80°F, low ≥ 50°F
Annual swing
53.2°F
warmest to coldest month
Heating need
5,922
Cooling need
834

Best time to visit Glenwood

Full guide →

Climate change signal

All-time records →

0 of 366 (0%) of Glenwood'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
59
1900s
3
1910s
3
1920s
31
1930s
100
1940s
21
1950s
25
1960s
14
1970s
14
1980s
28
1990s
37
2000s
31

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 33.0°F 12.2°F 22.6°F 0.66 in 8.2 in 5
February 38.2°F 16.4°F 27.3°F 1.03 in 7.0 in 5
March 51.5°F 27.5°F 39.5°F 2.03 in 3.4 in 7
April 63.9°F 38.0°F 50.9°F 3.73 in 0.4 in 10
May 74.2°F 50.2°F 62.2°F 5.19 in 12
June 83.4°F 61.2°F 72.3°F 5.96 in 9
July 86.9°F 64.7°F 75.8°F 4.31 in 10
August 85.1°F 62.1°F 73.6°F 3.81 in 7
September 79.4°F 52.7°F 66.1°F 3.32 in 6
October 66.6°F 39.9°F 53.3°F 2.30 in 6
November 50.6°F 27.7°F 39.2°F 1.30 in 1.3 in 5
December 37.6°F 17.5°F 27.6°F 1.16 in 3.4 in 4

Climate twins of Glenwood

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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