Humidity Levels in Alaska During September





The average humidity in September is listed below for places in Alaska. The tables give daily averages along with highest and lowest relative humidity levels.

Relative humidity measures the actual amount of moisture in the air as a percentage of the maximum amount of moisture the air can hold.

All the numbers here are averages for the years 1961 to 1990.

Average Humidity

In these tables, the Daily number is the average of humidity readings taken every three hours throughout the day. Morning percentages are for 6 am and Afternoon measures are for 3 pm local standard time.

Southeast Alaska

Daily Place Morning Afternoon
82 Annette Island 89 73
88 Juneau 93 79
89 Yakutat 95 79

South - Central Alaska

Daily Place Morning Afternoon
76 Anchorage 84 64
69 Fairbanks 81 54
73 Gulkana 84 52
81 Homer 90 71
81 Talkeetna 94 64
84 Valdez 92 74

Southwest Alaska

Daily Place Morning Afternoon
83 Bethel 92 70
86 Cold Bay 90 80
79 King Salmon 88 65
81 Kodiak 86 73
74 McGrath 85 59
89 St Paul Island 91 83

Far North Alaska

Daily Place Morning Afternoon
91 Barrow 93 88
76 Bettles 85 63
79 Kotzebue 84 72
75 Nome 80 68

Highest and Lowest Humidity

Below are the averages during September for maximum and minimum relative humidity percentages in Alaska. The hours when this month's highest and lowest humidity readings usually occur are given in local standard time.

Southeast Alaska

High Time Place Low Time
89.1 6 am Annette Island 72.9 3 pm
93.2 3 am Juneau 79.2 3 pm
95.3 6 am Yakutat 78.8 3 pm

South - Central Alaska

High Time Place Low Time
84.0 6 am Anchorage 64.3 3 pm
81.4 6 am Fairbanks 53.6 3 pm
84.3 3 am Gulkana 52.0 3 pm
89.6 6 am Homer 71.3 3 pm
94.4 6 am Talkeetna 64.0 3 pm
91.7 6 am Valdez 74.1 3 pm

Southwest Alaska

High Time Place Low Time
92.3 6 am Bethel 70.0 3 pm
90.2 3 am Cold Bay 79.9 3 pm
87.9 6 am King Salmon 65.4 3 pm
86.0 3 am Kodiak 72.9 3 pm
85.2 6 am McGrath 59.0 3 pm
91.2 6 am St Paul Island 83.0 3 pm

Far North Alaska

High Time Place Low Time
92.6 6 am Barrow 87.5 3 pm
85.1 6 am Bettles 63.0 3 pm
84.2 6 am Kotzebue 72.2 3 pm
80.0 6 am Nome 68.2 3 pm
Reference

World Data Center for Meteorology. Climate of the World.

Alaska Humidity
Back to Top