What is the hottest month in West Okoboji?

July is the warmest month in West Okoboji, with an average high of 82.6°F.

What is the coldest month in West Okoboji?

January is the coldest month in West Okoboji, with an average low of 7.5°F.

What month does West Okoboji get the most rain?

June is typically the wettest month in West Okoboji, with about 4.47 inches of precipitation.

What plant hardiness zone is West Okoboji in?

West Okoboji is approximately in USDA plant hardiness Zone 6a, based on the average annual extreme minimum temperature.

Has the climate in West Okoboji changed recently?

15.6% of West Okoboji's all-time daily heat records were set in the last decade (since 2015), compared to roughly 5% if records were evenly distributed over time.

West Okoboji, IA

Climate overview — based on NOAA 1991-2020 normals from MILFORD 4 NW, IA US.

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

Year-round temperatures (°F)

Avg high Avg low

Climate summary

West Okoboji has an annual average temperature of 46°F with about 29.5 inches of precipitation per year and 38 inches of snow. The warmest month is July (average high 82.6°F), and the coldest is January (average low 7.5°F). June is typically the wettest month (4.47 in) and January the driest (0.70 in). Snow typically falls from October through April.

Pleasant months

3 / 12

avg high 65–80°F, low ≥ 50°F

Annual swing

56.6°F

warmest to coldest month

Heating need

7,329

HDD/yr

Cooling need

489

CDD/yr

Best time to visit West Okoboji

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Climate change signal

All-time records →

57 of 366 (15.6%) of West Okoboji'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.

1910s		0
1920s		24
1930s		6
1940s		37
1950s		55
1960s		43
1970s		28
1980s		38
1990s		28
2000s		32
2010s		30
2020s		45

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	24.4°F	7.5°F	15.9°F	0.70 in	8.7 in	7
February	28.9°F	11.6°F	20.3°F	0.74 in	9.3 in	7
March	41.9°F	23.6°F	32.7°F	1.61 in	5.3 in	6
April	57.2°F	35.2°F	46.2°F	3.25 in	2.5 in	8
May	69.5°F	47.7°F	58.6°F	4.21 in	0.1 in	11
June	79.0°F	58.5°F	68.8°F	4.47 in	—	9
July	82.6°F	62.4°F	72.5°F	3.40 in	—	8
August	80.0°F	60.0°F	70.0°F	3.47 in	—	8
September	73.9°F	51.8°F	62.8°F	3.21 in	—	7
October	60.0°F	38.5°F	49.3°F	2.22 in	0.5 in	6
November	43.1°F	24.5°F	33.8°F	1.38 in	3.0 in	6
December	29.0°F	13.2°F	21.1°F	0.84 in	8.6 in	6