Unalaska climate

Unalaska Weather in July

NOAA 1991-2020 normals for Dutch Harbor, 2.4 km from Unalaska

Average highs run from 55°F on July 1 to 59°F on July 31, and lows from 45°F to 48°F. Normal precipitation for the month is 2.30 in over about 14 wet days.

July day by day

The normal high and low for each date, and the record, in °F.

Normal daily high and low temperature at Unalaska, in °F, with the record for each date.304050607080151015202530
  • Normal low
  • Normal high
  • Record high
  • Record low

July at a glance

Average high
57°F
Average low
47°F
Precipitation
2.30 in
Record high
79°FJul 9, 1917
Record low
34°FJul 12, 1989
Chance of a freeze
0%
Daylight
17 h 00 min to 15 h 46 min
Cloud cover
92%
Humidity
93%
Dew point
47°F
Wind
11.0 mph

Every day of the month

A wet day has at least 0.01 inch of precipitation; snow means at least 0.1 inch of snowfall.

DateNormal highNormal lowRecord highRecord lowChance wetChance of snow
Jul 155°F45°F73°F 198537°F 199246%0%
Jul 255°F45°F70°F 200137°F 193745%0%
Jul 356°F45°F73°F 202037°F 193345%0%
Jul 456°F45°F69°F 198936°F 199645%0%
Jul 556°F45°F72°F 195138°F 198645%0%
Jul 656°F46°F70°F 200135°F 198345%0%
Jul 756°F46°F68°F 191739°F 198745%0%
Jul 856°F46°F76°F 191739°F 191645%0%
Jul 957°F46°F79°F 191740°F 201245%0%
Jul 1057°F46°F76°F 191736°F 193045%0%
Jul 1157°F46°F65°F 192438°F 198645%0%
Jul 1257°F46°F72°F 192434°F 198945%0%
Jul 1357°F46°F74°F 201738°F 192045%0%
Jul 1457°F46°F71°F 192638°F 191645%0%
Jul 1557°F47°F71°F 194738°F 191745%0%
Jul 1658°F47°F69°F 199640°F 193045%0%
Jul 1758°F47°F71°F 201740°F 191645%0%
Jul 1858°F47°F71°F 202139°F 193845%0%
Jul 1958°F47°F72°F 193438°F 200945%0%
Jul 2058°F47°F76°F 191737°F 199245%0%
Jul 2158°F47°F74°F 201336°F 191645%0%
Jul 2258°F47°F77°F 191936°F 191645%0%
Jul 2358°F47°F69°F 199837°F 191645%0%
Jul 2459°F48°F69°F 193338°F 192845%0%
Jul 2559°F48°F74°F 193338°F 198546%0%
Jul 2659°F48°F75°F 193641°F 193146%0%
Jul 2759°F48°F74°F 194638°F 192546%0%
Jul 2859°F48°F75°F 199439°F 194146%0%
Jul 2959°F48°F74°F 193537°F 200446%0%
Jul 3059°F48°F74°F 193840°F 198746%0%
Jul 3159°F48°F74°F 199438°F 198746%0%

Chance of rain

The chance of at least 0.01 inch of precipitation on each date at Unalaska, in percent, and of at least 0.1 inch of snowfall.010203040501102030
  • Chance of a wet day
  • Chance of snowfall

Sunrise and sunset

Times for 2026, local time (AKDT).

July 1
sunrise 6:40 AM, sunset 11:40 PM
July 31
sunrise 7:19 AM, sunset 11:05 PM

Every day of July: sun and moon

Other months

Sources

Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00502587 (Dutch Harbor), public domain. Records: NOAA GHCN-Daily, station USC00502587, every year on file, quality-flagged values removed. Cloud, humidity, wind and sunshine: NASA POWER (MERRA-2, CERES and GEWEX SRB), 1991-2020. The data was obtained from the National Aeronautics and Space Administration (NASA) Langley Research Center's Prediction Of Worldwide Energy Resources (POWER) project funded through the NASA Earth Science Division: POWER Daily API v2, accessed 2026-09-24. Sun and moon: computed with the NOAA solar equations and Meeus.