Grafton, IA Weather


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The most pleasant months of the year for Grafton are June, August and July. In Grafton, there are 4 comfortable months with high temperatures in the range of 70-85°. July is the hottest month for Grafton with an average high temperature of 81.5°, which ranks it as one of the coolest places in Iowa. December is the snowiest month in Grafton with 9.8 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 - Grafton, IA

12 AM PST

Mostly Cloudy

44°F

7 DAY FORECASTDESCRIPTIONHIGH/LOWWIND
OvernightMostly Cloudy41° / 65°SE 10 mph
Thursday NightChance Rain Showers then Showers And Thunderstorms Likely45° / 62°SE 16 to 23 mph
Friday NightShowers And Thunderstorms52° / 75°SSE 24 mph
Saturday NightShowers And Thunderstorms54° / 69°NNE 13 to 16 mph
Sunday NightShowers And Thunderstorms45° / 58°SSW 17 mph
Monday NightPartly Cloudy41° / 73°W 7 to 16 mph
Tuesday NightChance Showers And Thunderstorms51° / 76°SSW 13 mph

Weather Highlights

Summer High: the July high is around 82 degrees
Winter Low: the January low is 6
Rain: averages 35 inches of rain a year
Snow: averages 39 inches of snow a year


BESTPLACES COMFORT INDEX

The annual BestPlaces Comfort Index for the Grafton area is 9.1 (10=best), which means it is more comfortable than most places in Iowa.

9.1 / 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
January24°
February28° 11°
March41° 23°
April57° 35°
May69° 47°
June78° 57°
July82° 61°
August79° 59°
September72° 49°
October59° 37°
November42° 24°
December27° 11°
Hot, Freezing, Rainy, Snowy Days: Grafton
Hot
Days
Freezing
Days
Rainy
Days
Snowy
Days
January03166
February02754
March02673
April01191
May01110
June20110
July3090
August2090
September0180
October01070
November02462
December03076

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.

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