Iliamna weather in October: Iliamna, Alaska: normal highs, lows, rain and records for October
Iliamna in October has a normal high of 45°F and a normal low of 32°F, a daily mean of 38°F, falling from 51°F on the 1st to 38°F by the 31st. Measurable precipitation falls on 13 days in a normal October, 2.84 inches in all. (NOAA 1991-2020 normals)
In metric: a normal high of 7°C and low of 0°C, 72 mm of precipitation in October.
- NOAA stationIliamna Airport
- Station IDUSW00025506
- Location59.75°N 154.91°W
- Elevation143 ft (44 m)
- Population (census place)45
- Jan 25° 12°
- Feb 30° 16°
- Mar 32° 16°
- Apr 43° 29°
- May 55° 38°
- Jun 62° 45°
- Jul 65° 51°
- Aug 64° 50°
- Sep 56° 43°
- Oct 45° 32°
- Nov 33° 21°
- Dec 28° 15°
Each month: normal high (large) and low, °F. Fill: the month's normal mean, colder blue to hotter red.
How warm is Iliamna in October?
The normal high is 45°F and the normal low 32°F, for a daily mean of 38.4°F. October is 11.3°F cooler than September and 11.3°F warmer than November. October is the 6th warmest month of the year in Iliamna and the 4th wettest. Across the month the normal high falls 13°F, from 51°F on October 1 to 38°F on October 31. From one year to the next October's mean temperature typically moves about 4.1°F either way (NOAA's standard deviation), so roughly two Octobers in three average between 34°F and 43°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 50%).
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in |
|---|---|---|---|---|
| October 1 | 51°F | 39°F | 50% | 30% |
| October 8 | 48°F | 36°F | 46% | 27% |
| October 15 | 45°F | 33°F | 43% | 24% |
| October 22 | 42°F | 30°F | 41% | 22% |
| October 31 | 38°F | 26°F | 39% | 21% |
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 | 51°F | 39°F | 50% | 30% | 11 h 30 min |
| October 2 | 50°F | 38°F | 49% | 30% | 11 h 30 min |
| October 3 | 50°F | 38°F | 49% | 29% | 11 h 20 min |
| October 4 | 50°F | 37°F | 48% | 29% | 11 h 20 min |
| October 5 | 49°F | 37°F | 48% | 29% | 11 h 10 min |
| October 6 | 49°F | 37°F | 47% | 28% | 11 h 10 min |
| October 7 | 49°F | 36°F | 47% | 28% | 11 h |
| October 8 | 48°F | 36°F | 46% | 27% | 11 h |
| October 9 | 48°F | 36°F | 46% | 27% | 10 h 50 min |
| October 10 | 47°F | 35°F | 45% | 26% | 10 h 50 min |
| October 11 | 47°F | 35°F | 45% | 26% | 10 h 40 min |
| October 12 | 47°F | 34°F | 44% | 25% | 10 h 40 min |
| October 13 | 46°F | 34°F | 44% | 25% | 10 h 30 min |
| October 14 | 46°F | 33°F | 43% | 25% | 10 h 20 min |
| October 15 | 45°F | 33°F | 43% | 24% | 10 h 20 min |
| October 16 | 45°F | 33°F | 43% | 24% | 10 h 10 min |
| October 17 | 44°F | 32°F | 42% | 24% | 10 h 10 min |
| October 18 | 44°F | 32°F | 42% | 24% | 10 h |
| October 19 | 43°F | 31°F | 42% | 23% | 10 h |
| October 20 | 43°F | 31°F | 41% | 23% | 9 h 50 min |
| October 21 | 43°F | 30°F | 41% | 23% | 9 h 50 min |
| October 22 | 42°F | 30°F | 41% | 22% | 9 h 40 min |
| October 23 | 42°F | 29°F | 41% | 22% | 9 h 40 min |
| October 24 | 41°F | 29°F | 40% | 22% | 9 h 30 min |
| October 25 | 41°F | 28°F | 40% | 22% | 9 h 30 min |
| October 26 | 40°F | 28°F | 40% | 22% | 9 h 20 min |
| October 27 | 40°F | 27°F | 40% | 22% | 9 h 20 min |
| October 28 | 39°F | 27°F | 40% | 21% | 9 h 10 min |
| October 29 | 39°F | 27°F | 40% | 21% | 9 h 10 min |
| October 30 | 38°F | 26°F | 40% | 21% | 9 h |
| October 31 | 38°F | 26°F | 39% | 21% | 8 h 50 min |
- Normal high
- 45°FOctober average
- Normal low
- 32°FOctober average
- Precipitation
- 2.84 inmonth total
- Days with precipitation
- 130.01 inch or more
- Nights at 32°F or colder
- 16
- Daylight
- 11 h 30 min to 8 h 50 minOctober 1 to October 31
- Sunshine
- 58%of clear-sky sunlight (NASA)
Source: NOAA NCEI 1991-2020 daily normals, station USW00025506; monthly normals. Daylight is computed from the place's latitude with NOAA's solar equations.
Does it rain in Iliamna in October?
On a given October day the chance of 0.01 inch or more is 43% on average, highest around October 1 (50%). In all, 2.84 in falls on 13 days of a normal October.
In a normal October in Iliamna, 16 nights fall to freezing and 4 days stay below freezing all day.
Source: NOAA NCEI 1991-2020 daily and monthly normals, station USW00025506.
How humid and windy is Iliamna in October?
At 3 p.m. the normal temperature is 34°F with 69% relative humidity and a dew point of 25°F; at 6 a.m. it is 30°F with 78% humidity. The wind averages 10.8 mph, most often from the north-northeast in the afternoon. A dew point under 50°F feels dry.
| Time | Temperature | Dew point | Humidity | Wind | Clear or few clouds |
|---|---|---|---|---|---|
| 6 a.m. | 30°F | 24°F | 78% | 10.7 mph | – |
| 9 a.m. | 29°F | 23°F | 78% | 10.5 mph | 34% |
| noon | 33°F | 25°F | 73% | 11.4 mph | – |
| 3 p.m. | 34°F | 25°F | 69% | 11.6 mph | 26% |
| 6 p.m. | 32°F | 25°F | 74% | 10.8 mph | – |
| 9 p.m. | 30°F | 24°F | 77% | 10.8 mph | 36% |
Source: NOAA NCEI 1991-2020 hourly normals, station USW00025506. 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 Iliamna?
The warmest October temperature on this station's record (since 1920) is 66°F, on October 4, 1976; the coldest is −4°F, on October 30, 1985. The wettest October brought 7.99 in (1989); the snowiest, 10.5 inches (1984).
The October mean against the 1991-2020 normal of 38.4°F: 2021 35.2°F (−3.2), 2022 36.4°F (−2.0), 2023 37.7°F (−0.7), 2024 36.1°F (−2.3). 0 of 4 ran warmer than normal.
| October | Mean | Against normal | Precip. |
|---|---|---|---|
| 2021 | 35.2°F | −3.2°F | 5.54 in |
| 2022 | 36.4°F | −2.0°F | 4.96 in |
| 2023 | 37.7°F | −0.7°F | 0.45 in |
| 2024 | 36.1°F | −2.3°F | 1.79 in |
Source: records: ACIS, station USW00025506; recent months: ACIS, station USW00025506. Records and recent months use complete months only.
How does October in Iliamna 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; Iliamna's is 45°F.
Source: NOAA NCEI 1991-2020 monthly normals for every station in the state.