Juneau weather in October: Juneau, Alaska: normal highs, lows, rain and records for October
Juneau in October has a normal high of 47°F and a normal low of 37°F, a daily mean of 42°F, falling from 52°F on the 1st to 42°F by the 31st. Measurable precipitation falls on 23 days in a normal October, 8.42 inches in all. (NOAA 1991-2020 normals)
In metric: a normal high of 8°C and low of 3°C, 214 mm of precipitation and 2 cm of snow in October.
- 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 October?
The normal high is 47°F and the normal low 37°F, for a daily mean of 42.2°F. October is 7.9°F cooler than September and 8.4°F warmer than November. October is the 6th warmest month of the year in Juneau and the 2nd wettest. Across the month the normal high falls 10°F, from 52°F on October 1 to 42°F on October 31. From one year to the next October's mean temperature typically moves about 1.7°F either way (NOAA's standard deviation), so roughly two Octobers in three average between 41°F and 44°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 76%).
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in |
|---|---|---|---|---|
| October 1 | 52°F | 41°F | 76% | 57% |
| October 8 | 50°F | 40°F | 76% | 57% |
| October 15 | 48°F | 38°F | 75% | 56% |
| October 22 | 45°F | 35°F | 74% | 54% |
| October 31 | 42°F | 32°F | 72% | 51% |
Every day of October: normal high, low and chance of precipitation (warmest afternoon October 1, coldest night October 31)
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in | Daylight |
|---|---|---|---|---|---|
| October 1 | 52°F | 41°F | 76% | 57% | 11 h 40 min |
| October 2 | 52°F | 41°F | 76% | 57% | 11 h 30 min |
| October 3 | 52°F | 41°F | 76% | 57% | 11 h 30 min |
| October 4 | 51°F | 41°F | 76% | 57% | 11 h 20 min |
| October 5 | 51°F | 40°F | 76% | 57% | 11 h 20 min |
| October 6 | 51°F | 40°F | 76% | 57% | 11 h 10 min |
| October 7 | 51°F | 40°F | 76% | 57% | 11 h 10 min |
| October 8 | 50°F | 40°F | 76% | 57% | 11 h |
| October 9 | 50°F | 39°F | 76% | 57% | 11 h |
| October 10 | 50°F | 39°F | 76% | 57% | 10 h 50 min |
| October 11 | 49°F | 39°F | 76% | 57% | 10 h 40 min |
| October 12 | 49°F | 39°F | 76% | 57% | 10 h 40 min |
| October 13 | 49°F | 38°F | 76% | 56% | 10 h 30 min |
| October 14 | 48°F | 38°F | 75% | 56% | 10 h 30 min |
| October 15 | 48°F | 38°F | 75% | 56% | 10 h 20 min |
| October 16 | 47°F | 37°F | 75% | 56% | 10 h 20 min |
| October 17 | 47°F | 37°F | 75% | 55% | 10 h 10 min |
| October 18 | 47°F | 37°F | 75% | 55% | 10 h 10 min |
| October 19 | 46°F | 36°F | 75% | 55% | 10 h |
| October 20 | 46°F | 36°F | 74% | 55% | 10 h |
| October 21 | 46°F | 36°F | 74% | 54% | 9 h 50 min |
| October 22 | 45°F | 35°F | 74% | 54% | 9 h 50 min |
| October 23 | 45°F | 35°F | 73% | 54% | 9 h 40 min |
| October 24 | 44°F | 35°F | 73% | 53% | 9 h 40 min |
| October 25 | 44°F | 34°F | 73% | 53% | 9 h 30 min |
| October 26 | 44°F | 34°F | 73% | 53% | 9 h 30 min |
| October 27 | 43°F | 34°F | 72% | 53% | 9 h 20 min |
| October 28 | 43°F | 33°F | 72% | 52% | 9 h 20 min |
| October 29 | 43°F | 33°F | 72% | 52% | 9 h 20 min |
| October 30 | 42°F | 33°F | 72% | 52% | 9 h 10 min |
| October 31 | 42°F | 32°F | 72% | 51% | 9 h 10 min |
- Normal high
- 47°FOctober average
- Normal low
- 37°FOctober average
- Precipitation
- 8.42 inmonth total
- Days with precipitation
- 230.01 inch or more
- Snowfall
- 0.9 inmonth total
- Nights at 32°F or colder
- 8
- Daylight
- 11 h 40 min to 9 h 10 minOctober 1 to October 31
- Sunshine
- 49%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 October?
On a given October day the chance of 0.01 inch or more is 74% on average, highest around October 5 (76%). In all, 8.42 in falls on 23 days of a normal October, 2 of them with an inch or more.
In a normal October in Juneau, 8 nights fall to freezing and snowfall averages 0.9 inches.
Snow falls on 1 day in a normal October.
Source: NOAA NCEI 1991-2020 daily and monthly normals, station USW00025309.
How humid and windy is Juneau in October?
At 3 p.m. the normal temperature is 40°F with 82% relative humidity and a dew point of 35°F; at 6 a.m. it is 36°F with 90% humidity. The wind averages 7.2 mph, most often from the east-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. | 36°F | 34°F | 90% | 6.8 mph | – |
| 9 a.m. | 38°F | 34°F | 88% | 7.1 mph | 8% |
| noon | 40°F | 35°F | 82% | 8.2 mph | – |
| 3 p.m. | 40°F | 35°F | 82% | 8.2 mph | 11% |
| 6 p.m. | 38°F | 35°F | 87% | 6.8 mph | – |
| 9 p.m. | 37°F | 34°F | 89% | 7.1 mph | 13% |
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 October in Juneau?
The warmest October temperature on Juneau's official record (since 1943) is 63°F, on October 1, 2018; the coldest is 11°F, on October 30, 1984. The wettest October brought 15.25 in (1974); the snowiest, 15.6 inches (1956).
The October mean against the 1991-2020 normal of 42.2°F: 2021 41.4°F (−0.8), 2022 45.9°F (+3.7), 2023 43.4°F (+1.2), 2024 41.3°F (−0.9), 2025 44.0°F (+1.8). 3 of 5 ran warmer than normal.
| October | Mean | Against normal | Precip. |
|---|---|---|---|
| 2021 | 41.4°F | −0.8°F | 9.67 in |
| 2022 | 45.9°F | +3.7°F | 13.11 in |
| 2023 | 43.4°F | +1.2°F | 9.69 in |
| 2024 | 41.3°F | −0.9°F | 7.92 in |
| 2025 | 44.0°F | +1.8°F | 9.52 in |
Source: records: ACIS, NWS threaded record JNUthr; recent months: ACIS, station USW00025309. Records and recent months use complete months only.
How does October in Juneau compare across Alaska?
Across the 85 places PlainClimate covers in Alaska, October normal highs run from 24°F in Nuiqsut to 52°F in Klawock; Juneau's is 47°F.
Source: NOAA NCEI 1991-2020 monthly normals for every station in the state.