Haines, Alaska climate: Normal weather by month, frost dates and records
Haines's normal year runs from 19°F January nights to 65°F July afternoons, with 47.4 inches of precipitation a year. (NOAA 1991-2020 normals)
In metric: a yearly mean of 5.5°C, January lows of −7°C, July highs of 19°C, 1,204 mm of precipitation a year.
- NOAA stationHaines Airport
- Station IDUSW00025323
- Location59.24°N 135.51°W
- Elevation15 ft (5 m)
- Population (census place)1,781
On October 23, the normal high in Haines is 45°F and the normal low 35°F, and the chance of measurable rain or snow is 57%.
Normals describe a typical year at the station, not a forecast. The National Weather Service forecast for Haines.
- Jan 30° 19°
- Feb 34° 22°
- Mar 39° 26°
- Apr 50° 34°
- May 60° 42°
- Jun 64° 49°
- Jul 65° 52°
- Aug 64° 51°
- Sep 57° 46°
- Oct 48° 38°
- Nov 36° 26°
- Dec 32° 22°
Each month: normal high (large) and low, °F. Fill: the month's normal mean, colder blue to hotter red.
What is the weather like in Haines each month?
July is the warmest month, with normal highs of 65°F; January the coldest, with normal lows of 19°F. The most precipitation falls in December (7.06 in), the least in June (1.55 in).
| Month | High | Low | Mean | Precip. | Wet days | 90°F days | Freezing nights | Daylight |
|---|---|---|---|---|---|---|---|---|
| January | 30°F | 19°F | 24.4°F | 4.86 | 16 | <1 | 25 | 6 h 50 min |
| February | 34°F | 22°F | 28.0°F | 3.36 | 11 | <1 | 23 | 9 h 10 min |
| March | 39°F | 26°F | 32.5°F | 3.04 | 13 | <1 | 22 | 11 h 40 min |
| April | 50°F | 34°F | 42.1°F | 2.35 | 12 | <1 | 11 | 14 h 20 min |
| May | 60°F | 42°F | 50.8°F | 1.88 | 10 | <1 | 1 | 16 h 50 min |
| June | 64°F | 49°F | 56.6°F | 1.55 | 10 | <1 | <1 | 18 h 30 min |
| July | 65°F | 52°F | 58.8°F | 1.74 | 12 | <1 | <1 | 17 h 50 min |
| August | 64°F | 51°F | 57.6°F | 3.21 | 14 | <1 | <1 | 15 h 40 min |
| September | 57°F | 46°F | 51.6°F | 5.91 | 17 | <1 | <1 | 13 h |
| October | 48°F | 38°F | 42.6°F | 6.79 | 18 | <1 | 6 | 10 h 20 min |
| November | 36°F | 26°F | 31.3°F | 5.65 | 16 | <1 | 21 | 7 h 50 min |
| December | 32°F | 22°F | 26.9°F | 7.06 | 17 | <1 | 25 | 6 h 10 min |
| Year (annual) | 48°F | 36°F | 41.9°F | 47.40 | 167 | <1 | 134 |
The same normals in °C and millimetres
| Month | High | Low | Mean | Precip. |
|---|---|---|---|---|
| January | −1°C | −7°C | −4.2°C | 123 mm |
| February | 1°C | −6°C | −2.2°C | 85 mm |
| March | 4°C | −3°C | 0.3°C | 77 mm |
| April | 10°C | 1°C | 5.6°C | 60 mm |
| May | 15°C | 6°C | 10.4°C | 48 mm |
| June | 18°C | 9°C | 13.7°C | 39 mm |
| July | 19°C | 11°C | 14.9°C | 44 mm |
| August | 18°C | 11°C | 14.2°C | 82 mm |
| September | 14°C | 8°C | 10.9°C | 150 mm |
| October | 9°C | 3°C | 5.9°C | 172 mm |
| November | 2°C | −3°C | −0.4°C | 144 mm |
| December | 0°C | −6°C | −2.8°C | 179 mm |
NOAA publishes no 1991-2020 snowfall normal for this station. Haines's own co-op station Haines #2 does: 164 inches of snow in a normal year (see the other stations below).
Source: NOAA NCEI 1991-2020 monthly normals, station USW00025323; annual normals. Wet days: 0.01 inch or more; 90°F days and freezing nights: NOAA's day counts. Daylight: sunrise to sunset on the 15th, computed from the latitude.
When is the best weather to visit Haines?
Normal highs sit between 65°F and 85°F in July.
That is a measurement, not a recommendation: it counts the months whose normal afternoon high sits between 65°F and 85°F, where a light layer is enough by day.
Source: NOAA NCEI 1991-2020 monthly normals, station USW00025323.
When is the last frost in Haines?
In Haines, the last spring frost (32°F) comes after April 25 in half of years and after May 7 in one year in ten; the first autumn frost comes before October 12 in half of years and before September 30 in one year in ten.
Frost-free in half of yearsFrost in 1 to 9 years out of 10Frost most years
- Last spring frost, half of years after
- April 251 year in 10 after May 7; 9 in 10 after April 10
- First autumn frost, half of years before
- October 121 year in 10 before September 30; 9 in 10 before October 29
NOAA puts the median frost-free season at 172 days, and the season without a hard freeze (28°F) at 203 days.
A hard freeze (28°F) comes after April 7 in half of springs and before October 29 in half of autumns.
The USDA's 2023 Plant Hardiness Zone Map puts Haines in zone 5a in ZIP code 99840, the nearest ZIP area. By the map's own method, the average of each year's coldest night over 1991-2020, Haines's NOAA station is in zone 6b: the coldest night of a typical year reaches −4°F (23 complete years); the map interpolates between stations and terrain, so the station and the ZIP area can differ by half a zone.
Frost dates for every NOAA station in Alaska · Frost dates by ZIP code
Source: NOAA NCEI 1991-2020 annual normals (frost probabilities), station USW00025323; USDA 2023 Plant Hardiness Zone Map, ZIP listings: PRISM Group, Oregon State University, https://prism.oregonstate.edu, accessed October 8, 2026; the station zone: ACIS daily lows, 1991-2020. A 10% date means one year in ten has a frost after it in spring or before it in autumn.
How hot and how cold does it get in Haines?
In a normal year in Haines, a 90°F day is rare, 134 nights fall to 32°F or colder and 167 days bring measurable precipitation.
- Days at 90°F or more
- fewer than 1a normal year
- Days at 100°F or more
- fewer than 1a normal year
- Nights at 32°F or colder
- 134a normal year
- Days that stay below freezing
- 57high of 32°F or less
- Days with 0.01 inch of precipitation
- 167a normal year
The highest temperature in this station's record (since 1911) is 98°F, on July 31, 1976; the lowest is −18°F, on January 3, 1998.
The wettest calendar year on that record is 1952, with 81.72 in; the snowiest season is 1951–52, with 291.7 inches.
Source: NOAA NCEI 1991-2020 annual normals, station USW00025323; records: ACIS (NOAA Regional Climate Centers), station USW00025323. Records use complete months only; a month missing more than three days is left out.
How sunny is Haines?
Over a year 60% of the sunlight that would reach the ground under clear skies gets through the clouds in the area around Haines, 2.5 kWh per square metre a day. May is the sunniest month (68%) and November the cloudiest (47%).
| Month | Share of clear-sky sunshine | Sunshine, kWh/m² a day |
|---|---|---|
| January | 50% | 0.3 |
| February | 56% | 1.0 |
| March | 60% | 2.3 |
| April | 63% | 3.8 |
| May | 68% | 5.3 |
| June | 60% | 5.1 |
| July | 60% | 4.7 |
| August | 57% | 3.6 |
| September | 56% | 2.4 |
| October | 49% | 1.1 |
| November | 47% | 0.4 |
| December | 49% | 0.2 |
Source: NASA POWER solar climatology, 2001-2020 (CERES SYN1deg). Satellite-based, for the 1-degree cell (about 100 km across) around the station, so it describes the area rather than the airport.
How much heating and cooling does Haines need?
A normal year in Haines brings 8,406 heating degree days, 56% more than the median U.S. place (5,373), and 11 cooling degree days, 99% fewer than the median (908). Nine months need 300 or more heating degree days, a monthly mean of about 55°F or colder. For gardens and crops, NOAA counts 863 growing degree days a year above 50°F.
| Month | Heating | Cooling |
|---|---|---|
| January | 1,260 | 0 |
| February | 1,035 | 0 |
| March | 1,008 | 0 |
| April | 687 | 0 |
| May | 439 | 0 |
| June | 258 | 5 |
| July | 197 | 4 |
| August | 234 | 3 |
| September | 402 | 0 |
| October | 693 | 0 |
| November | 1,011 | 0 |
| December | 1,183 | 0 |
| Year (annual) | 8,406 | 11 |
Source: NOAA NCEI 1991-2020 monthly normals, station USW00025323. A degree day is one degree of a day's mean temperature below 65°F (heating) or above it (cooling); utilities use them to estimate energy use.
Has Haines been warmer than normal lately?
2024 averaged 43.5°F, 1.6°F above the 1991-2020 normal of 41.9°F. 3 of the 4 complete years since 2021 ran warmer than the normal.
| Year | Mean | Against normal | Precip. |
|---|---|---|---|
| 2021 | 40.3°F | −1.6°F | 46.07 |
| 2022 | 42.8°F | +0.9°F | 56.06 |
| 2023 | 44.4°F | +2.5°F | 67.81 |
| 2024 | 43.5°F | +1.6°F | 51.20 |
Source: observed years: ACIS, station USW00025323. A year counts only with all twelve months complete.
How does Haines's climate compare?
Haines is warmer than 67 of the other 84 places with their own NOAA record in Alaska, and wetter than 51. Across the 7,247 U.S. stations with normals, its annual mean of 41.9°F is warmer than 9%.
In the Köppen classification computed from these normals, Haines is Dsb: continental, dry-summer, warm summer. What the classes mean.
Places with the most similar year elsewhere
Measured month by month on the normal high, low and precipitation, among places of 20,000 or more people in other states:
Source: NOAA NCEI 1991-2020 normals for every station PlainClimate covers. Similarity: the root-mean-square difference of the 36 monthly figures, precipitation weighted so an inch counts like 6°F.
Which places near Haines share this climate record?
2 places have no NOAA station with 1991-2020 normals of their own, and this station is the nearest full record. A place's own climate can differ from these figures, by several degrees where it sits much higher or lower than the station, nearer the coast, or inside a large city's heat; for the larger places the next nearest records are named with their yearly mean, so the spread around them is visible, and places of 50,000 or more have their own page with NOAA's gridded normals.
- Klukwan, AK89 people · 17 mi NW
- Mud Bay, AK58 people · 8 mi SE
Source: Census Bureau 2024 Gazetteer (place centers) and Vintage 2024 population estimates. Distance and direction from the station to each place's center.
What do Haines's other NOAA stations record?
One more NOAA station keeps 1991-2020 normals in or near Haines. This page uses Haines Airport; the other differs by site and elevation:
| Station | From this station | Elevation | Year | Jan low | Jul high | Precip. | Snow | Last frost |
|---|---|---|---|---|---|---|---|---|
| Haines #2 USC00503502 | 2 mi E | 95 ft | 40.8°F | 18°F | 65°F | 63.1 | 164 | April 30 |
Source: NOAA NCEI 1991-2020 normals for each station. Last frost: the median last spring date of 32°F.
Questions about Haines's climate
What is the coldest month in Haines?
January, with a normal high of 30°F and a normal low of 19°F. The warmest is July (65°F by day, 52°F at night).
Does it snow in Haines?
Yes. NOAA publishes no 1991-2020 snowfall normal for Haines's NOAA station; Haines's own co-op station Haines #2 records 164 inches of snow in a normal year.
What is the rainiest month in Haines?
December, with 7.06 in of precipitation in a normal year; the driest is June with 1.55 in.
What plant hardiness zone is Haines in?
The USDA's 2023 map puts Haines in zone 5a in ZIP code 99840, the nearest ZIP area. By the same method at Haines's NOAA station, the coldest night of a typical year reaches −4°F (23 years, 1991-2020): zone 6b.
How late can frost come in Haines?
In half of years the last 32°F night comes after April 25; in one year in ten it comes after May 7. Waiting until May 7 leaves about a one-in-ten chance of a later frost.
Nearby and next
- Alaska climateThe statewide normals and every place in the state
- Skagway, AK16 miles from this station, 42.7°F a year
- Haines (40 mi NW), AK34 miles from this station, 37.1°F a year
- Glacier Bay, AK56 miles from this station, 40.9°F a year
- Gustavus, AK57 miles from this station, 40.6°F a year
- Compare two placesMonth by month, side by side
Download these normals (CSV) · JSON · How these figures are made