Storehouse No. 4 · Photo: KLOTZ · CC BY-SA 3.0Hyder is among the wettest of U.S. towns: 93 inches of precipitation a year
High summer brings afternoon highs near 68°. The gap between a January night and a July afternoon is 46°. Its July afternoons stay fresher than in almost every U.S. town. Garden chairs stay out from June to August, the months with highs of 67–68°.
A year in Hyder at a glance
Each month’s typical high and low, and what it brings.
What stands out about Hyder’s climate
Compared with towns across the U.S., with Hyder’s place in Alaska beside it.
What a year in Hyder feels like
Typical highs and lows by season and by month, from NOAA’s 30-year normals.
About 157 frost-free days a year
In half of years the last 32° night comes by May 4 and the first by October 11. Frost dates and degree days from Hyder, AK, 5 miles away.
The 2023 USDA map puts Hyder’s center in zone 6b: the coldest night of a typical winter, averaged over 1991–2020, reaches about −1°. Plant labels use the zone; frost dates tell you when to plant.
Freezing nights by month
Average nights at or below 32°
About 93 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 Hyder
Nearly all of the work is heating: a normal year has almost no cooling days. Months averaging under 55° run from September through May.
Degree days add up how far each day’s average falls below (heating) or rises above (cooling) 65° over a year. NOAA normals at Hyder, AK.
Living with Hyder’s climate
What the numbers mean for a garden, a free afternoon and a bad-weather day.
157 frost-free days in zone 6b. The last frost comes by May 4 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 11.
Months with highs of 62–84° and lows of 40° or more: June, July and August. 7.2 miles of trails are waiting.
Parks & trails →Of the yearly building losses FEMA expects in Hyder from natural hazards, river flooding is the largest share (73%); heat waves, cold waves, winter storms and ice storms together are 16%. Normals are averages; the hazards page covers the extremes.
Natural hazards →Hyder and similar climates
TownRatings has no climate map of the towns around Hyder yet.
Temperatures and precipitation come from NOAA’s 5 km grid; snow and day counts from the stations named on this page.
How Hyder compares
Against 12,954 U.S. towns of 2,500 or more (one per 5 km climate cell), with Hyder’s place among Alaska’s.
Hyder weather by month
Highs, lows and precipitation from the nearest NOAA station. 1991–2020 normals.
| Month | High | Low | Rain + melt |
|---|---|---|---|
| January | 31° | 22° | 11.0" |
| February | 35° | 24° | 5.8" |
| March | 42° | 28° | 6.0" |
| April | 51° | 33° | 4.1" |
| May | 62° | 40° | 4.8" |
| June | 67° | 47° | 3.5" |
| July | 68° | 51° | 4.7" |
| August | 67° | 50° | 8.8" |
| September | 59° | 45° | 11.2" |
| October | 48° | 37° | 12.1" |
| November | 38° | 30° | 12.0" |
| December | 32° | 24° | 8.6" |
| Year | 50° | 36° | 92.5" |
Where Hyder’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 dates, heating and cooling: Hyder, AK, 5 miles away.
- 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 Hyder’s climate
What is the weather like in Hyder?
A typical July afternoon reaches 68°, a January night drops to 22°. Milder January nights than 53% of U.S. towns; cooler July afternoons than all but 66 U.S. towns.
How cold does it get in Hyder in winter?
January nights average 22°. About 152 nights a year reach 32° or below and 2 reach 0° or below.
How hot does it get in Hyder?
July, with a typical high of 68°. 90° days are rare: none in a normal year at Hyder, AK.
When is the first and last frost in Hyder?
In half of years the last spring frost (32°) comes by May 4 and the first fall frost by October 11, about 157 frost-free days, at Hyder, AK.
What growing zone is Hyder in?
Zone 6b on the 2023 USDA Plant Hardiness Zone Map: the coldest night of a typical winter reaches about −1°.
What is the best time of year to visit Hyder?
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 Hyder.
Source: NOAA NCEI U.S. Climate Normals, 1991–2020; USDA/PRISM 2023 hardiness zones; FEMA National Risk Index. Today’s forecast: National Weather Service.