Hardly any U.S. towns collect more precipitation than Coffman Cove: 85 inches a year
January nights here settle around 28°. In July, afternoons here are cooler than in almost every U.S. town. Temperatures cover 37° across the year, low to high. Warm coats and heating bills mark the months from October to May, when means dip under 50°.
A year in Coffman Cove at a glance
Each month’s typical high and low, and what it brings.
What stands out about Coffman Cove’s climate
Compared with towns across the U.S., with Coffman Cove’s place in Alaska beside it.
What a year in Coffman Cove feels like
Typical highs and lows by season and by month, from NOAA’s 30-year normals.
About 166 frost-free days a year
In half of years the last 32° night comes by May 1 and the first by October 13. Frost and day counts come from NOAA’s station at Thorne Bay, AK, 25 miles from the town’s center, 240 ft higher.
The 2023 USDA map puts Coffman Cove’s center in zone 8a: the coldest night of a typical winter, averaged over 1991–2020, reaches about 11°. Plant labels use the zone; frost dates tell you when to plant.
Freezing nights by month
Average nights at or below 32°
About 85 inches of rain a year
October is the wettest month and May the driest.
Rain + melted snow by month
Inches of water
Heating and cooling a home in Coffman Cove
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 Thorne Bay, AK.
Living with Coffman Cove’s climate
What the numbers mean for a garden, a free afternoon and a bad-weather day.
166 frost-free days in zone 8a. The last frost comes by May 1 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 13.
Months with highs of 62–84° and lows of 40° or more: June, July and August. 4.8 miles of trails are waiting.
Parks & trails →Of the yearly building losses FEMA expects in Coffman Cove from natural hazards, river flooding is the largest share (48%); heat waves, cold waves, winter storms and ice storms together are 4%. Normals are averages; the hazards page covers the extremes.
Natural hazards →Coffman Cove and similar climates
TownRatings has no climate map of the towns around Coffman Cove yet.
Temperatures and precipitation come from NOAA’s 5 km grid; snow and day counts from the stations named on this page.
How Coffman Cove compares
Against 12,954 U.S. towns of 2,500 or more (one per 5 km climate cell), with Coffman Cove’s place among Alaska’s.
Coffman Cove weather by month
Highs, lows and precipitation from the nearest NOAA station. 1991–2020 normals.
| Month | High | Low | Rain + melt |
|---|---|---|---|
| January | 38° | 28° | 8.2" |
| February | 40° | 28° | 5.5" |
| March | 43° | 30° | 6.3" |
| April | 50° | 34° | 5.1" |
| May | 57° | 40° | 3.5" |
| June | 63° | 46° | 4.1" |
| July | 66° | 51° | 5.3" |
| August | 65° | 50° | 7.0" |
| September | 59° | 45° | 8.6" |
| October | 51° | 38° | 12.1" |
| November | 42° | 32° | 10.5" |
| December | 38° | 30° | 9.1" |
| Year | 51° | 38° | 85.2" |
Where Coffman Cove’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: Thorne Bay, AK, 25 miles from the town’s center, 240 ft higher; 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 Coffman Cove’s climate
What is the weather like in Coffman Cove?
A typical July afternoon reaches 66°, a January night drops to 28°. Milder January nights than 70% of U.S. towns; cooler July afternoons than all but 24 U.S. towns.
How cold does it get in Coffman Cove in winter?
January nights average 28°. About 118 nights a year reach 32° or below.
How hot does it get in Coffman Cove?
July, with a typical high of 66°. 90° days are rare: none in a normal year at Thorne Bay, AK.
When is the first and last frost in Coffman Cove?
In half of years the last spring frost (32°) comes by May 1 and the first fall frost by October 13, about 166 frost-free days, at Thorne Bay, AK.
What growing zone is Coffman Cove in?
Zone 8a on the 2023 USDA Plant Hardiness Zone Map: the coldest night of a typical winter reaches about 11°.
What is the best time of year to visit Coffman Cove?
By one simple rule (highs of 62–84° and lows of 40° or more), June, 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 Coffman Cove.
Source: NOAA NCEI U.S. Climate Normals, 1991–2020; USDA/PRISM 2023 hardiness zones; FEMA National Risk Index. Today’s forecast: National Weather Service.