Northwood, IA

Climate overview — based on NOAA 1991-2020 normals from NORTHWOOD, IA US.

Dfb Warm-summer humid continental climate 5b USDA hardiness Zone 5b

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

Northwood has an annual average temperature of 43°F with about 35.5 inches of precipitation per year and 40.2 inches of snow. The warmest month is July (average high 78.6°F), and the coldest is January (average low 3.8°F). June is typically the wettest month (5.13 in) and February the driest (1.02 in). Snow typically falls from October through April.

Pleasant months
3 / 12
avg high 65–80°F, low ≥ 50°F
Annual swing
56.4°F
warmest to coldest month
Heating need
8,118
Cooling need
192

Best time to visit Northwood

Full guide →

Climate change signal

All-time records →

24 of 366 (6.6%) of Northwood'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
11
1900s
16
1910s
8
1920s
16
1930s
82
1940s
24
1950s
26
1960s
23
1970s
22
1980s
47
1990s
19
2000s
31
2010s
21
2020s
20

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 21.3°F 3.8°F 12.6°F 1.07 in 10.9 in 8
February 25.7°F 8.0°F 16.9°F 1.02 in 9.3 in 6
March 38.4°F 20.6°F 29.5°F 1.99 in 6.2 in 8
April 54.0°F 32.6°F 43.3°F 3.82 in 3.3 in 10
May 66.3°F 44.9°F 55.6°F 4.78 in 12
June 76.0°F 55.9°F 65.9°F 5.13 in 11
July 78.6°F 59.4°F 69.0°F 4.73 in 9
August 76.4°F 56.6°F 66.5°F 3.92 in 8
September 70.8°F 47.9°F 59.3°F 3.32 in 8
October 57.1°F 35.1°F 46.1°F 2.68 in 0.3 in 8
November 40.8°F 22.6°F 31.7°F 1.73 in 2.6 in 7
December 27.4°F 11.4°F 19.4°F 1.28 in 7.6 in 7

Climate twins of Northwood

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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