Iliamna CDP, Alaska

Official LSAD Designation: Iliamna CDP • Census GEOID: 0235120 • Lake and Peninsula Borough

Climate Normals & Weather Observations

30-year climate normals (1991–2020) and weather observations for Iliamna CDP.

Reference Weather Station: ILIAMNA AP, AK US (ID: USW00025506) • Located 5.0 miles from community center • Elevation: 43.6 m

Month	Average High (°F)	Average Low (°F)	Mean Temp (°F)	Precipitation (in)
January	24.8°	11.9°	18.4°	0.90"
February	29.9°	16.3°	23.1°	1.06"
March	31.7°	15.7°	23.7°	0.84"
April	43.3°	28.8°	36.1°	0.83"
May	54.7°	37.9°	46.3°	1.19"
June	62.0°	45.4°	53.7°	1.51"
July	64.9°	50.7°	57.8°	3.08"
August	63.5°	49.9°	56.7°	4.14"
September	56.0°	43.3°	49.7°	5.01"
October	44.6°	32.3°	38.4°	2.84"
November	33.2°	21.0°	27.1°	2.16"
December	28.0°	15.3°	21.7°	1.45"

2010–2025, completed calendar years only.

NOAA station ILIAMNA AP, AK US (ID: USW00025506) • 5.0 miles from community center .

This is the same reference station used for monthly normals.

Show annual mean of daily highs and lows

Annual mean Annual mean of daily highs Annual mean of daily lows

Annual temperature data table (°F)

Annual station temperatures, 2010–2025. Unavailable means no reported value.
Year	Annual mean (°F)	Annual mean of daily highs (°F)	Annual mean of daily lows (°F)
2010	34.1	40.5	27.8
2011	34.4	41.2	27.5
2012	31.7	38.7	24.7
2013	37.8	44.8	30.8
2014	40.6	47.6	33.7
2015	39.7	46.1	33.2
2016	41.8	48.2	35.4
2017	36.1	43.0	29.2
2018	38.9	45.3	32.5
2019	42.1	48.9	35.4
2020	35.4	42.7	28.1
2021	33.9	40.6	27.2
2022	37.3	43.9	30.8
2023	Unavailable	Unavailable	Unavailable
2024	34.9	41.1	28.6
2025	Unavailable	Unavailable	Unavailable

Source: NOAA NCEI 1991–2020 U.S. Climate Normals, National Weather Service.