Zip 51040 (Onawa, IA) Weather


Reviews



Download our custom City Report to see exclusive
data on cost of living, crime, climate, and more.
United States / Iowa / No Metro Area / Monona County / Onawa / Onawa (zip 51040)

The most pleasant months of the year for the 51040 zip code are September, May and June. In the 51040 zip code, there are 4 comfortable months with high temperatures in the range of 70-85°. July is the hottest month for the 51040 zip code with an average high temperature of 86.4°, which ranks it as one of the hottest places in Iowa. December is the snowiest month in the 51040 zip code with 6.7 inches of snow, and 6 months of the year have significant snowfall. July is the most humid month, though humidity is low for most of the year.

Today's Weather - Onawa, IA

8 PM PST

Mostly Clear

41°F

7 DAY FORECASTDESCRIPTIONHIGH/LOWWIND
TonightMostly Clear29° / 54°W 5 to 9 mph
Friday NightPartly Cloudy28° / 52°NW 7 to 18 mph
Saturday NightPartly Cloudy28° / 61°WNW 5 to 13 mph
Sunday NightMostly Clear39° / 68°SW 8 to 14 mph
Monday NightShowers And Thunderstorms Likely43° / 62°W 14 to 21 mph
Tuesday NightPartly Cloudy35° / 65°NNE 8 to 16 mph
Wednesday NightChance Rain Showers45° / 66°SE 15 mph

Weather Highlights

Summer High: the July high is around 86 degrees
Winter Low: the January low is 10
Rain: averages 32 inches of rain a year
Snow: averages 26 inches of snow a year


BESTPLACES COMFORT INDEX

The annual BestPlaces Comfort Index for the Onawa (zip 51040) area is 8.7 (10=best), which means it is more comfortable than most places in Iowa.

8.7 / 10

A higher score indicates a more comfortable year-round climate. The US average for the comfort index is 7.8. Our index is based on the total number of days annually within the comfort range of 70-80 degrees, and we also applied a penalty for days of excessive humidity.


Average Monthly High and Low (°F)
HighLow
January31° 10°
February36° 14°
March49° 25°
April63° 36°
May74° 49°
June83° 59°
July86° 63°
August84° 60°
September77° 50°
October64° 38°
November47° 25°
December33° 13°
Hot, Freezing, Rainy, Snowy Days: Onawa
Hot
Days
Freezing
Days
Rainy
Days
Snowy
Days
January03143
February02743
March02472
April01081
May11100
June5090
July9080
August5070
September2170
October01060
November02352
December03053

YOU SHOULD KNOW

Many people confuse weather and climate but they are different. Weather is the conditions of the atmosphere over a short period of time, and climate is how the atmosphere is over long periods of time.

Weather is how the atmosphere is behaving and its effects upon life and human activities. Weather can change from minute-to-minute. Most people think of weather in terms of temperature, humidity, precipitation, cloudiness, brightness, visibility, wind, and atmospheric pressure.

Climate is the description of the long-term pattern of weather in a place. Climate can mean the average weather for a particular region and time period taken over 30 years. Climate is the average of weather over time.

Schools