Castana, IA Climate


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United States / Iowa / No Metro Area / Monona County / Castana / Zip Codes
Castana, IA has a humid continental climate characterized by warm summers and cold winters. The average temperature in the summer months ranges from 68 to 84°F while in the winter months temperatures range from 12 to 27°F. Precipitation is evenly distributed throughout the year with an annual average of 26 inches. During the summer months, thunderstorms are common and occasionally severe storms can occur. Snowfall in Castana averages 24 inches per season with the greatest amount falling during February and March.

Castana, Iowa gets 31 inches of rain, on average, per year. The US average is 38 inches of rain per year.

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

On average, there are 208 sunny days per year in Castana. The US average is 205 sunny days.

Castana gets some kind of precipitation, on average, 81 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 85 degrees
Winter Low: the January low is 9
Rain: averages 31 inches of rain a year
Snow: averages 29 inches of snow a year

Bestplaces Comfort Index

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

8.8 Summer - 4.7 Winter
June, September and August are the most pleasant months in Castana, while January and December are the least comfortable months.

  ClimateCastana, IowaUnited States
  31.0 in.38.1 in.
  28.9 in.27.8 in.
  80.5 days106.2 days
  208 days205 days
  85.1°85.8°
  9.2°21.7°
  77
  3.94.3
  1145 ft.2443 ft.
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 Castana with an average high temperature of 85.1°, which ranks it as warmer than most places in Iowa. In Castana, there are 4 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Castana are September, June and August.
In Castana, there are 16.1 days annually when the high temperature is over 90°, which is hotter than most places in Iowa.
January has the coldest nighttime temperatures for Castana with an average of 9.2°. This is colder than most places in Iowa.
In Castana, there are 158.0 days annually when the nighttime low temperature falls below freezing, which is colder than most places in Iowa.
In Castana, there are 20.0 days annually when the nighttime low temperature falls below zero°, which is colder than most places in Iowa.
The humidity is usually comfortable in Castana but some summer months can be sticky or muggy. July is the most humid month, though humidity is low for most of the year. The most humid months are July, August and June.
June is the wettest month in Castana with 4.5 inches of rain, and the driest month is January with 0.7 inches. The wettest season is Autumn with 39% of yearly precipitation and 8% occurs in Spring, which is the driest season. The annual rainfall of 31.0 inches in Castana means that it is one of the driest places in Iowa.
May is the rainiest month in Castana with 9.9 days of rain, and January is the driest month with only 4.0 rainy days. There are 80.5 rainy days annually in Castana, which is one of the least rainy places in Iowa. The rainiest season is Autumn when it rains 31% of the time and the driest is Spring with only a 16% chance of a rainy day.
An annual snowfall of 28.9 inches in Castana means that it is about average compared to other places in Iowa. December is the snowiest month in Castana with 7.5 inches of snow, and 7 months of the year have significant snowfall.
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