Iliamna, AK Climate


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United States / Alaska / No Metro Area / Lake and Peninsula Borough County / Iliamna / Zip Codes
Iliamna, AK has a subarctic climate with long cold winters and short, warm summers. Average temperatures in January can dip as low as -14°F while summertime highs in July are usually around 62°F. On average, the area gets about 27 inches of snow each year and receives 22 to 23 inches of precipitation annually. The area is often blanketed with snow from mid-November through late April or early May, creating a magical winter wonderland for locals and visitors alike.

Bestplaces Comfort Index

The annual BestPlaces Comfort Index for Iliamna is 5.4 (10=best), which means it is more comfortable than most places in Alaska.

7.9 Summer - 3 Winter
July, June and August are the most pleasant months in Iliamna, while January and December are the least comfortable months.

  ClimateIliamna, AlaskaUnited States
  28.0 in.38.1 in.
  72.8 in.27.8 in.
  125.1 days106.2 days
  115 days205 days
  64.6°85.8°
  10.3°21.7°
  5.47
  1.44.3
  154 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 Iliamna with an average high temperature of 64.6°, which ranks it as about average compared to other places in Alaska. In Iliamna, there are 0 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Iliamna are July, August and June.
In Iliamna, there are 0.0 days annually when the high temperature is over 90°, which is about average compared to other places in Alaska.
January has the coldest nighttime temperatures for Iliamna with an average of 10.3°. This is warmer than most places in Alaska.
In Iliamna, there are 181.8 days annually when the nighttime low temperature falls below freezing, which is warmer than most places in Alaska.
In Iliamna, there are 32.5 days annually when the nighttime low temperature falls below zero°, which is warmer than most places in Alaska.
Humidity is low in Iliamna, and some people might find the dryness to be uncomfortable. Days with noticeable humidity are rare throughout the year. A very dry climate can lead to cracked, itchy skin and dry eyes.
September is the wettest month in Iliamna with 4.2 inches of rain, and the driest month is April with 1.3 inches. The wettest season is Winter with 37% of yearly precipitation and 15% occurs in Summer, which is the driest season. The annual rainfall of 28.0 inches in Iliamna means that it is wetter than most places in Alaska.
September is the rainiest month in Iliamna with 14.5 days of rain, and March is the driest month with only 7.5 rainy days. There are 125.1 rainy days annually in Iliamna, which is about average compared to other places in Alaska. The rainiest season is Winter when it rains 30% of the time and the driest is Summer with only a 19% chance of a rainy day.
An annual snowfall of 72.8 inches in Iliamna means that it is snowier than most places in Alaska. December is the snowiest month in Iliamna with 18.9 inches of snow, and 7 months of the year have significant snowfall.
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