Photo: John Nathan Cobb · Public domainHardly any U.S. towns see fresher July days than Klawock
January mornings start at about 31°. Seasons differ by 34°, from the coldest nights to the warmest afternoons. By precipitation alone, it ranks wetter than almost every U.S. town. Garden planting can start around April 29; autumn frost returns near October 16.
A year in Klawock at a glance
Each month’s typical high and low, and what it brings.
What stands out about Klawock’s climate
Compared with towns across the U.S., with Klawock’s place in Alaska beside it.
What a year in Klawock feels like
Typical highs and lows by season and by month, from NOAA’s 30-year normals.
About 169 frost-free days a year
In half of years the last 32° night comes by April 29 and the first by October 16. Frost and day counts come from NOAA’s station at Klawock Airport, 1.6 miles from the town’s center, at about the same height.
The 2023 USDA map puts Klawock’s center in zone 8a: the coldest night of a typical winter, averaged over 1991–2020, reaches about 13°. Plant labels use the zone; frost dates tell you when to plant.
Freezing nights by month
Average nights at or below 32°
About 89 inches of rain a year
October is the wettest month and June the driest.
Rain + melted snow by month
Inches of water
Heating and cooling a home in Klawock
Nearly all of the work is heating: a normal year has almost no cooling days. Months averaging under 55° run from September through June.
Degree days add up how far each day’s average falls below (heating) or rises above (cooling) 65° over a year. NOAA normals at Klawock Airport.
Living with Klawock’s climate
What the numbers mean for a garden, a free afternoon and a bad-weather day.
169 frost-free days in zone 8a. The last frost comes by Apr 29 in half of years, so many gardeners wait a week or two past that to set out tomatoes. The first fall frost comes by Oct 16.
Months with highs of 62–84° and lows of 40° or more: July and August. 0.0 miles of trails are waiting.
Parks & trails →Normals are averages; the hazards page covers the extremes.
Natural hazards →Klawock and similar climates
TownRatings has no climate map of the towns around Klawock yet.
Temperatures and precipitation come from NOAA’s 5 km grid; snow and day counts from the stations named on this page.
How Klawock compares
Against 12,954 U.S. towns of 2,500 or more (one per 5 km climate cell), with Klawock’s place among Alaska’s.
Klawock weather by month
Highs, lows and precipitation from the nearest NOAA station. 1991–2020 normals.
| Month | High | Low | Rain + melt |
|---|---|---|---|
| January | 40° | 31° | 8.7" |
| February | 41° | 30° | 6.3" |
| March | 44° | 31° | 6.8" |
| April | 51° | 35° | 5.5" |
| May | 57° | 41° | 4.1" |
| June | 61° | 46° | 3.4" |
| July | 63° | 51° | 4.3" |
| August | 64° | 51° | 6.8" |
| September | 60° | 47° | 10.7" |
| October | 52° | 40° | 12.3" |
| November | 44° | 34° | 10.2" |
| December | 40° | 31° | 10.1" |
| Year | 51° | 39° | 89.2" |
Where Klawock’s numbers come from
Normals are 30-year averages, not a forecast. How TownRatings reads climate data →
- Temperatures and precipitation: NOAA’s 1991–2020 normals at the nearest station (NOAA’s grid doesn’t cover Alaska).
- Frost, freezing nights, 90° and 100° days, heating and cooling: Klawock Airport, 1.6 miles from the town’s center, at about the same height; the nearest station that passes our checks for distance, height and agreement with the grid.
- Growing zone: USDA Plant Hardiness Zone Map, 2023. USDA Agricultural Research Service and PRISM Group, Oregon State University, prism.oregonstate.edu/phzm, accessed 8 Oct 2026.
- Storms and extremes: FEMA National Risk Index (expected annual losses to buildings).
Common questions about Klawock’s climate
What is the weather like in Klawock?
A typical July afternoon reaches 63°, a January night drops to 31°. Milder January nights than 74% of U.S. towns; cooler July afternoons than all but 10 U.S. towns.
How cold does it get in Klawock in winter?
February nights average 30°. About 94 nights a year reach 32° or below.
How hot does it get in Klawock?
July, with a typical high of 63°. 90° days are rare: none in a normal year at Klawock Airport.
When is the first and last frost in Klawock?
In half of years the last spring frost (32°) comes by April 29 and the first fall frost by October 16, about 169 frost-free days, at Klawock Airport.
What growing zone is Klawock in?
Zone 8a on the 2023 USDA Plant Hardiness Zone Map: the coldest night of a typical winter reaches about 13°.
What is the best time of year to visit Klawock?
By one simple rule (highs of 62–84° and lows of 40° or more), July and August. The rule is ours, not NOAA’s; the month table has the numbers to judge by.
Neighbors talk weather
Gardens, snow, and the best days of the year in Klawock.
Source: NOAA NCEI U.S. Climate Normals, 1991–2020; USDA/PRISM 2023 hardiness zones; FEMA National Risk Index. Today’s forecast: National Weather Service.