Juneau weather in March: Juneau, Alaska: normal highs, lows, rain and records for March
Juneau in March has a normal high of 39°F and a normal low of 27°F, a daily mean of 33°F, rising from 37°F on the 1st to 43°F by the 31st. Measurable precipitation falls on 18 days in a normal March, 3.67 inches in all. (NOAA 1991-2020 normals)
In metric: a normal high of 4°C and low of −3°C, 93 mm of precipitation and 31 cm of snow in March.
- NOAA stationJuneau Airport
- Station IDUSW00025309
- Location58.36°N 134.56°W
- Elevation16 ft (5 m)
- Population31,572
- Jan 33° 24°
- Feb 36° 25°
- Mar 39° 27°
- Apr 49° 33°
- May 58° 40°
- Jun 62° 47°
- Jul 64° 50°
- Aug 63° 49°
- Sep 56° 44°
- Oct 47° 37°
- Nov 38° 29°
- Dec 35° 26°
Each month: normal high (large) and low, °F. Fill: the month's normal mean, colder blue to hotter red.
How warm is Juneau in March?
The normal high is 39°F and the normal low 27°F, for a daily mean of 32.9°F. March is 2.8°F warmer than February and 7.9°F cooler than April. March is the 9th warmest month of the year in Juneau and the 10th wettest. Across the month the normal high rises 6°F, from 37°F on March 1 to 43°F on March 31. From one year to the next March's mean temperature typically moves about 3.5°F either way (NOAA's standard deviation), so roughly two Marchs in three average between 29°F and 36°F.
Bars above: each day's normal high to low. Columns below: the chance of 0.01 inch or more of precipitation that day, on a scale of 0 to 100% (highest 57%).
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in |
|---|---|---|---|---|
| March 1 | 37°F | 25°F | 57% | 35% |
| March 8 | 37°F | 25°F | 57% | 35% |
| March 15 | 39°F | 26°F | 57% | 35% |
| March 22 | 40°F | 27°F | 57% | 34% |
| March 31 | 43°F | 29°F | 57% | 33% |
Every day of March: normal high, low and chance of precipitation (warmest afternoon March 31, coldest night March 1)
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in | Daylight |
|---|---|---|---|---|---|
| March 1 | 37°F | 25°F | 57% | 35% | 10 h 30 min |
| March 2 | 37°F | 25°F | 57% | 35% | 10 h 30 min |
| March 3 | 37°F | 25°F | 57% | 35% | 10 h 40 min |
| March 4 | 37°F | 25°F | 57% | 35% | 10 h 40 min |
| March 5 | 37°F | 25°F | 57% | 35% | 10 h 50 min |
| March 6 | 37°F | 25°F | 57% | 35% | 10 h 50 min |
| March 7 | 37°F | 25°F | 57% | 35% | 11 h |
| March 8 | 37°F | 25°F | 57% | 35% | 11 h 10 min |
| March 9 | 38°F | 26°F | 57% | 35% | 11 h 10 min |
| March 10 | 38°F | 26°F | 57% | 35% | 11 h 20 min |
| March 11 | 38°F | 26°F | 57% | 35% | 11 h 20 min |
| March 12 | 38°F | 26°F | 57% | 35% | 11 h 30 min |
| March 13 | 38°F | 26°F | 57% | 35% | 11 h 30 min |
| March 14 | 38°F | 26°F | 57% | 35% | 11 h 40 min |
| March 15 | 39°F | 26°F | 57% | 35% | 11 h 40 min |
| March 16 | 39°F | 26°F | 57% | 35% | 11 h 50 min |
| March 17 | 39°F | 27°F | 57% | 35% | 11 h 50 min |
| March 18 | 39°F | 27°F | 57% | 34% | 12 h |
| March 19 | 40°F | 27°F | 57% | 34% | 12 h |
| March 20 | 40°F | 27°F | 57% | 34% | 12 h 10 min |
| March 21 | 40°F | 27°F | 57% | 34% | 12 h 10 min |
| March 22 | 40°F | 27°F | 57% | 34% | 12 h 20 min |
| March 23 | 41°F | 28°F | 57% | 34% | 12 h 20 min |
| March 24 | 41°F | 28°F | 57% | 34% | 12 h 30 min |
| March 25 | 41°F | 28°F | 57% | 34% | 12 h 30 min |
| March 26 | 42°F | 28°F | 57% | 34% | 12 h 40 min |
| March 27 | 42°F | 28°F | 57% | 33% | 12 h 40 min |
| March 28 | 42°F | 29°F | 57% | 33% | 12 h 50 min |
| March 29 | 43°F | 29°F | 57% | 33% | 12 h 50 min |
| March 30 | 43°F | 29°F | 57% | 33% | 13 h |
| March 31 | 43°F | 29°F | 57% | 33% | 13 h |
- Normal high
- 39°FMarch average
- Normal low
- 27°FMarch average
- Precipitation
- 3.67 inmonth total
- Days with precipitation
- 180.01 inch or more
- Snowfall
- 12.4 inmonth total
- Nights at 32°F or colder
- 22
- Daylight
- 10 h 30 min to 13 hMarch 1 to March 31
- Sunshine
- 56%of clear-sky sunlight (NASA)
Source: NOAA NCEI 1991-2020 daily normals, station USW00025309; monthly normals. Daylight is computed from the place's latitude with NOAA's solar equations.
Does it rain or snow in Juneau in March?
On a given March day the chance of 0.01 inch or more is 57% on average, highest around March 9 (57%). In all, 3.67 in falls on 18 days of a normal March.
In a normal March in Juneau, 22 nights fall to freezing, 5 days stay below freezing all day and snowfall averages 12.4 inches.
Snow falls on 8 days in a normal March, and an inch or more covers the ground on 13 days.
Source: NOAA NCEI 1991-2020 daily and monthly normals, station USW00025309.
How humid and windy is Juneau in March?
At 3 p.m. the normal temperature is 42°F with 61% relative humidity and a dew point of 30°F; at 6 a.m. it is 33°F with 87% humidity. The wind averages 7.4 mph, most often from the southeast in the afternoon. A dew point under 50°F feels dry.
| Time | Temperature | Dew point | Humidity | Wind | Clear or few clouds |
|---|---|---|---|---|---|
| 6 a.m. | 33°F | 29°F | 87% | 5.6 mph | 17% |
| 9 a.m. | 37°F | 30°F | 76% | 7.5 mph | 15% |
| noon | 41°F | 30°F | 65% | 10.9 mph | 19% |
| 3 p.m. | 42°F | 30°F | 61% | 10.8 mph | 15% |
| 6 p.m. | 40°F | 30°F | 67% | 8.1 mph | 19% |
| 9 p.m. | 36°F | 31°F | 81% | 5.7 mph | 21% |
Source: NOAA NCEI 1991-2020 hourly normals, station USW00025309. Hourly normals exist only for NOAA's first-order stations; a dash where NOAA publishes no value for that hour (the sky at some hours).
What are the records for March in Juneau?
The warmest March temperature on Juneau's official record (since 1943) is 61°F, on March 21, 1998; the coldest is −15°F, on March 7, 1972. The wettest March brought 6.50 in (1994); the snowiest, 76.6 inches (2026).
The March mean against the 1991-2020 normal of 32.9°F: 2021 32.8°F (−0.1), 2022 36.7°F (+3.8), 2023 30.6°F (−2.3), 2024 35.0°F (+2.1), 2025 36.5°F (+3.6), 2026 25.9°F (−6.9). 3 of 6 ran warmer than normal.
| March | Mean | Against normal | Precip. |
|---|---|---|---|
| 2021 | 32.8°F | −0.1°F | 6.38 in |
| 2022 | 36.7°F | +3.8°F | 5.66 in |
| 2023 | 30.6°F | −2.3°F | 2.75 in |
| 2024 | 35.0°F | +2.1°F | 3.08 in |
| 2025 | 36.5°F | +3.6°F | 2.68 in |
| 2026 | 25.9°F | −6.9°F | 5.25 in |
Source: records: ACIS, NWS threaded record JNUthr; recent months: ACIS, station USW00025309. Records and recent months use complete months only.
How does March in Juneau compare across Alaska?
Across the 85 places PlainClimate covers in Alaska, March normal highs run from −7°F in Nuiqsut to 44°F in Klawock; Juneau's is 39°F.
Source: NOAA NCEI 1991-2020 monthly normals for every station in the state.