Climateby Month

Juneau, AK weather in July

NOAA 1991-2020 normals and daily records · Juneau all year

Juneau is cool in July, with rain on most days: highs average 64°F and nights drop to about 50°F. Expect about 19 wet days. Even so, it is one of the warmest months in Juneau. Keep rain gear handy.

Normal high
64°F
Normal low
50°F
Wet days
19
5.1 in total
Muggy days
0
dew point 65°F+

How July changes from start to finish

Normal values at the start and end of July
July 1July 31
Normal high63°F65°F
Normal low49°F51°F
Chance of a wet day57%59%
Sunrise / sunset3:57 am / 10:05 pm4:47 am / 9:20 pm
Daylight18.1 h16.6 h

Chance of a wet day: average for the first and last 7 days of the month. Times are local clock time (Alaska Time).

A typical July day

  1. 6 am53°Fdew point 50°F
  2. 9 am57°Fdew point 52°F
  3. Noon61°Fdew point 52°F
  4. 3 pm62°Fdew point 52°F
  5. 6 pm61°Fdew point 52°F
  6. 9 pm56°Fdew point 51°F

NOAA hourly normals (local standard time) from Juneau Intl Airport (7 mi away); average wind 7 mph.

What kind of days to expect

  • Comfortable dayshigh 65-80°F and dew point under 60°F12 of 31
  • Beach dayshigh 80-95°F, under 0.05 in of rain, afternoon wind under 15 mph1 of 31
  • Hot dayshigh 90°F or more0 of 31
  • Muggy daysdaily mean dew point 65°F or more0 of 31
  • Wet daysat least 0.01 in of rain or melted snow19 of 31
  • Notable rainat least 0.10 in12 of 31
  • Freezing nightslow 32°F or below0 of 31
  • Snow on the groundsnow depth 1 in or more0 of 31

Average days per July, counted from daily records for each year 1991-2020.

Rain in July

Normal precipitation is 5.1 in; a dry July brings about 3.6 in and a wet one about 6.4 in (25th and 75th percentiles). About 4 days bring half an inch or more, and about 1 an inch or more.

How July varies from year to year

  • Warmest July, 1991-20202018: average high 71°F
  • Coolest July2008: average high 58°F
  • Wettest July2015: 10.4 in
  • Driest July2019: 2.1 in
  • Highest reading85°F (July 6, 2009)
  • Lowest reading38°F (July 12, 2012)

From the station's daily records with NOAA quality flags removed; most recent date shown when a reading repeats.

July compared with June and August

JuneJulyAugust
Normal high62°F64°F63°F
Normal low47°F50°F49°F
Wet days171919
Comfortable days101211
Daylight18.1 h17.5 h15.3 h

Highs change by +2°F from June and -1°F into August.

Nearby alternatives in July

How Juneau ranks in July

  • Normal high376th warmest of 378 cities; 6th of 8 in Alaska
  • Wet days372nd driest of 378
  • Comfortable days41st most of 340

What to pack for Juneau in July

  • A rain jacket or umbrella – rain on about 19 days

Heating and cooling

July has 248 heating degree days and 1 cooling degree days (base 65°F), 3% of the year's total heating and cooling demand.

Questions

How cold is Juneau in July?

The normal high is 64°F and the normal low is 50°F. From 1991 to 2020 the coldest July reading was 38°F (July 12, 2012).

Does it rain a lot in Juneau in July?

About 19 days in July have at least 0.01 in of precipitation, and the normal total is 5.1 in. The wettest July in 1991-2020 was in 2015 (10.4 in); the driest was in 2019 (2.1 in).

Is July a good time to visit Juneau?

July ranks 2nd of 12 months on our comfort score for Juneau (66 out of 100). It has about 12 comfortable days. The best months are June, July and August.

Where the numbers come from

  • Temperature, rain, snowfall, snow depth, frost dates and humidity and wind by hour: Juneau Intl Airport (USW00025309), 6.5 mi NW of the city center, 16 ft . NOAA normals and daily records, 1991-2020.
  • Daily humidity and wind: Juneau International (703810-25309), 6.1 mi NW of the city center, 19 ft . Hourly observations, 1991-2020.
  • Not available for this location: cloud cover (no station close enough or similar enough in elevation).