Louisa County, IA Climate

The climate in Louisa County, IA is generally mild and temperate. Summers are hot and humid with average temperatures ranging from 72 - 84 degrees Fahrenheit (22 – 29 Celsius). Winters tend to be cold with temperatures falling between 18 - 32 degrees Fahrenheit (-8 - 0 Celsius). Precipitation is fairly evenly distributed throughout the year, although spring tends to be the wettest season. The area also experiences occasional snowfall during winter months, with an average of 17 inches (43 cm) per year.

Louisa County, Iowa gets 37 inches of rain, on average, per year. The US average is 38 inches of rain per year.

Louisa County averages 29 inches of snow per year. The US average is 28 inches of snow per year.

On average, there are 201 sunny days per year in Louisa County. The US average is 205 sunny days.

Louisa County gets some kind of precipitation, on average, 103 days per year. Precipitation is rain, snow, sleet, or hail that falls to the ground. In order for precipitation to be counted you have to get at least .01 inches on the ground to measure.

Weather Highlights

Summer High: the July high is around 86 degrees
Winter Low: the January low is 14
Rain: averages 37 inches of rain a year
Snow: averages 29 inches of snow a year

Bestplaces Comfort Index

The annual BestPlaces Comfort Index for Louisa County is 7.0 (10=best), which means it is more comfortable than most places in Iowa.

8.6 Summer - 4.8 Winter

September, June and May are the most pleasant months in Louisa County, while January and December are the least comfortable months.

Climate	Louisa, Iowa	United States
	Unlock	38.1 in.
	29.3 in.	Unlock
	Unlock	106.2 days
	201 days	Unlock
	85.5°	85.8°
	Unlock	21.7°
	7	Unlock
	Unlock	4.3
	623 ft.	Unlock

Climate

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.

July is the hottest month for Louisa County with an average high temperature of 85.5°, which ranks it as warmer than most places in Iowa. In Louisa County, there are 4 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Louisa County are September, June and May.

In Louisa County, there are 16.8 days annually when the high temperature is over 90°, which is hotter than most places in Iowa.

January has the coldest nighttime temperatures for Louisa County with an average of 14.2°. This is one of the warmest places in Iowa.

In Louisa County, there are 128.1 days annually when the nighttime low temperature falls below freezing, which is one of the warmest places in Iowa.

In Louisa County, there are 10.6 days annually when the nighttime low temperature falls below zero°, which is one of the warmest places in Iowa.

The humidity is usually comfortable in Louisa County but some summer months can be unpleasant. July is the most humid month, though humidity is low for most of the year. The most humid months in Louisa County are July, August and June.

May is the wettest month in Louisa County with 4.7 inches of rain, and the driest month is January with 1.2 inches. The wettest season is Autumn with 34% of yearly precipitation and 13% occurs in Spring, which is the driest season. The annual rainfall of 37.0 inches in Louisa County means that it is wetter than most places in Iowa.

May is the rainiest month in Louisa County with 11.1 days of rain, and February is the driest month with only 7.0 rainy days. There are 102.5 rainy days annually in Louisa County, which is rainier than most places in Iowa. The rainiest season is Summer when it rains 29% of the time and the driest is Spring with only a 22% chance of a rainy day.

An annual snowfall of 29.3 inches in Louisa County means that it is about average compared to other places in Iowa. January is the snowiest month in Louisa County with 8.6 inches of snow, and 6 months of the year have significant snowfall.

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