Port Alsworth CDP, Alaska

Official LSAD Designation: Port Alsworth CDP • Census GEOID: 0262620 • Lake and Peninsula Borough

Climate Normals & Weather Observations

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

Reference Weather Station: PORT ALSWORTH 1 SW, AK US (ID: USW00026562) • Located 2.7 miles from community center • Elevation: 97.8 m

Month	Average High (°F)	Average Low (°F)	Mean Temp (°F)	Precipitation (in)
January	23.7°	4.9°	14.3°	1.55"
February	29.1°	10.1°	19.6°	1.48"
March	31.8°	10.6°	21.2°	1.17"
April	45.8°	24.3°	35.0°	0.91"
May	57.6°	32.3°	45.0°	0.84"
June	65.3°	40.9°	53.1°	1.24"
July	67.0°	46.2°	56.6°	2.15"
August	63.3°	45.0°	54.1°	3.32"
September	55.4°	37.5°	46.4°	3.48"
October	41.8°	25.0°	33.4°	2.25"
November	29.7°	15.0°	22.4°	3.03"
December	24.8°	8.6°	16.7°	2.17"

2010–2025, completed calendar years only.

NOAA station PORT ALSWORTH 1 SW, AK US (ID: USW00026562) • 2.7 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	Unavailable	Unavailable	Unavailable
2011	32.6	42.4	22.9
2012	29.5	39.3	19.7
2013	36.1	46.2	26.0
2014	38.4	48.8	28.1
2015	38.1	47.4	28.7
2016	40.0	49.6	30.5
2017	34.3	44.2	24.3
2018	37.3	46.8	27.7
2019	39.9	49.7	30.2
2020	33.7	44.0	23.3
2021	33.2	42.7	23.6
2022	36.4	46.3	26.5
2023	34.3	43.9	24.6
2024	35.3	44.8	25.9
2025	37.3	46.7	28.0

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