Harlan, IN Climate


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Harlan, IN has a humid continental climate with warm and humid summers and cold winters. During the summer months, temperatures can reach up to 85°F during the day with high levels of humidity. Winters are much colder with temperatures sometimes dropping below 0°F during the night. Snowfall is common in Harlan, with an average of around 24 inches per year. Precipitation is relatively evenly distributed throughout the year, with the spring months having the highest amount of rainfall.

Harlan, Indiana gets 37 inches of rain, on average, per year. The US average is 38 inches of rain per year.

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

On average, there are 180 sunny days per year in Harlan. The US average is 205 sunny days.

Harlan gets some kind of precipitation, on average, 118 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 84 degrees
Winter Low: the January low is 16
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 Harlan is 6.9 (10=best), which means it is less comfortable than most places in Indiana.

9.1 Summer - 4.6 Winter
June, August and September are the most pleasant months in Harlan, while January and December are the least comfortable months.

  ClimateHarlan, IndianaUnited States
  37.2 in.38.1 in.
  28.7 in.27.8 in.
  118.4 days106.2 days
  180 days205 days
  83.8°85.8°
  16.3°21.7°
  6.97
  3.64.3
  784 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 Harlan with an average high temperature of 83.8°, which ranks it as cooler than most places in Indiana. In Harlan, there are 5 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Harlan are September, June and August.
In Harlan, there are 10.0 days annually when the high temperature is over 90°, which is cooler than most places in Indiana.
January has the coldest nighttime temperatures for Harlan with an average of 16.3°. This is colder than most places in Indiana.
In Harlan, there are 134.8 days annually when the nighttime low temperature falls below freezing, which is one of the coldest places in Indiana.
In Harlan, there are 4.2 days annually when the nighttime low temperature falls below zero°, which is warmer than most places in Indiana.
The humidity is usually comfortable in Harlan 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.
May is the wettest month in Harlan with 4.2 inches of rain, and the driest month is February with 1.9 inches. The wettest season is Autumn with 31% of yearly precipitation and 18% occurs in Spring, which is the driest season. The annual rainfall of 37.2 inches in Harlan means that it is one of the driest places in Indiana.
April is the rainiest month in Harlan with 11.5 days of rain, and August is the driest month with only 8.1 rainy days. There are 118.4 rainy days annually in Harlan, which is about average compared to other places in Indiana. The rainiest season is Summer when it rains 27% of the time and the driest is Autumn with only a 23% chance of a rainy day.
An annual snowfall of 28.7 inches in Harlan means that it is snowier than most places in Indiana. January is the snowiest month in Harlan with 8.3 inches of snow, and 6 months of the year have significant snowfall.
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