Alaska's vast size (1/5 of US land area) creates enormous temperature variation. July-August averages by key locations:
| Location | High/Low | Notes |
|---|---|---|
| Anchorage | 55-75 / 13-24 | Maritime moderated; most populous |
| Fairbanks | 50-70 / 10-21 | Continental; warmest interior |
| Juneau | 45-60 / 7-16 | Coastal rainforest; cooler, wetter |
| Ketchikan | 50-65 / 10-18 | Southeast; mild, very wet |
| Nome | 40-55 / 4-13 | Bering Sea; Arctic influence |
| Utqiaġvik (Barrow) | 35-45 / 2-7 | Arctic Ocean; 24-hr sun, near freezing |
| Location | High/Low | Notes |
|---|---|---|
| Anchorage | 50-70 / 10-21 | Slight cooling begins |
| Fairbanks | 45-65 / 7-18 | Rapid day-length loss |
| Juneau | 40-55 / 4-13 | Rain peaks |
| Ketchikan | 45-60 / 7-16 | Consistent maritime |
| Nome | 35-50 / 2-10 | Early frost possible |
| Utqiaġvik | 30-40 / -1 to 4 | Freezing nights return |
Pack layers, rain gear, and insect repellent—Alaska summer is beautiful but unpredictable.