Iliamna weather in March: Iliamna, Alaska: normal highs, lows, rain and records for March
Iliamna in March has a normal high of 32°F and a normal low of 16°F, a daily mean of 24°F, rising from 31°F on the 1st to 35°F by the 31st. Measurable precipitation falls on 8 days in a normal March, 0.84 inches in all. (NOAA 1991-2020 normals)
In metric: a normal high of 0°C and low of −9°C, 21 mm of precipitation in March.
- 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 March?
The normal high is 32°F and the normal low 16°F, for a daily mean of 23.7°F. March is 0.6°F warmer than February and 12.4°F cooler than April. March is the 9th warmest month of the year in Iliamna and the 11th wettest. Across the month the normal high rises 4°F, from 31°F on March 1 to 35°F on March 31. From one year to the next March's mean temperature typically moves about 7.0°F either way (NOAA's standard deviation), so roughly two Marchs in three average between 17°F and 31°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 29%).
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in |
|---|---|---|---|---|
| March 1 | 31°F | 16°F | 29% | 11% |
| March 8 | 31°F | 15°F | 27% | 11% |
| March 15 | 31°F | 14°F | 25% | 10% |
| March 22 | 32°F | 16°F | 25% | 10% |
| March 31 | 35°F | 20°F | 25% | 10% |
Every day of March: normal high, low and chance of precipitation (warmest afternoon March 31, coldest night March 11)
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in | Daylight |
|---|---|---|---|---|---|
| March 1 | 31°F | 16°F | 29% | 11% | 10 h 20 min |
| March 2 | 31°F | 15°F | 28% | 11% | 10 h 30 min |
| March 3 | 31°F | 15°F | 28% | 11% | 10 h 30 min |
| March 4 | 31°F | 15°F | 28% | 11% | 10 h 40 min |
| March 5 | 31°F | 15°F | 28% | 11% | 10 h 50 min |
| March 6 | 31°F | 15°F | 27% | 11% | 10 h 50 min |
| March 7 | 31°F | 15°F | 27% | 11% | 11 h |
| March 8 | 31°F | 15°F | 27% | 11% | 11 h |
| March 9 | 31°F | 14°F | 27% | 11% | 11 h 10 min |
| March 10 | 31°F | 14°F | 26% | 11% | 11 h 10 min |
| March 11 | 31°F | 14°F | 26% | 11% | 11 h 20 min |
| March 12 | 31°F | 14°F | 26% | 10% | 11 h 20 min |
| March 13 | 31°F | 14°F | 26% | 10% | 11 h 30 min |
| March 14 | 31°F | 14°F | 26% | 10% | 11 h 30 min |
| March 15 | 31°F | 14°F | 25% | 10% | 11 h 40 min |
| March 16 | 31°F | 15°F | 25% | 10% | 11 h 50 min |
| March 17 | 31°F | 15°F | 25% | 10% | 11 h 50 min |
| March 18 | 31°F | 15°F | 25% | 10% | 12 h |
| March 19 | 31°F | 15°F | 25% | 10% | 12 h |
| March 20 | 32°F | 15°F | 25% | 10% | 12 h 10 min |
| March 21 | 32°F | 16°F | 25% | 10% | 12 h 10 min |
| March 22 | 32°F | 16°F | 25% | 10% | 12 h 20 min |
| March 23 | 32°F | 16°F | 25% | 10% | 12 h 20 min |
| March 24 | 33°F | 17°F | 25% | 10% | 12 h 30 min |
| March 25 | 33°F | 17°F | 25% | 10% | 12 h 30 min |
| March 26 | 33°F | 17°F | 25% | 10% | 12 h 40 min |
| March 27 | 34°F | 18°F | 25% | 10% | 12 h 40 min |
| March 28 | 34°F | 18°F | 25% | 10% | 12 h 50 min |
| March 29 | 34°F | 19°F | 25% | 10% | 13 h |
| March 30 | 35°F | 19°F | 25% | 10% | 13 h |
| March 31 | 35°F | 20°F | 25% | 10% | 13 h 10 min |
- Normal high
- 32°FMarch average
- Normal low
- 16°FMarch average
- Precipitation
- 0.84 inmonth total
- Days with precipitation
- 80.01 inch or more
- Nights at 32°F or colder
- 27
- Daylight
- 10 h 20 min to 13 h 10 minMarch 1 to March 31
- Sunshine
- 63%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 March?
On a given March day the chance of 0.01 inch or more is 26% on average, highest around March 1 (29%). In all, 0.84 in falls on 8 days of a normal March.
In a normal March in Iliamna, 27 nights fall to freezing and 15 days stay below freezing all day.
Source: NOAA NCEI 1991-2020 daily and monthly normals, station USW00025506.
How humid and windy is Iliamna in March?
At 3 p.m. the normal temperature is 33°F with 62% relative humidity and a dew point of 21°F; at 6 a.m. it is 24°F with 78% humidity. The wind averages 9.0 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. | 24°F | 18°F | 78% | 8.7 mph | – |
| 9 a.m. | 26°F | 19°F | 74% | 9.0 mph | 35% |
| noon | 31°F | 20°F | 65% | 9.8 mph | 45% |
| 3 p.m. | 33°F | 21°F | 62% | 10.6 mph | 27% |
| 6 p.m. | 33°F | 22°F | 64% | 10.0 mph | – |
| 9 p.m. | 28°F | 21°F | 74% | 8.0 mph | 33% |
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 March in Iliamna?
The warmest March temperature on this station's record (since 1920) is 52°F, on March 7, 1921; the coldest is −30°F, on March 17, 1922. The wettest March brought 4.54 in (1963); the snowiest, 31.7 inches (1947).
The March mean against the 1991-2020 normal of 23.7°F: 2021 19.3°F (−4.4), 2022 28.1°F (+4.4), 2023 22.0°F (−1.7), 2024 18.9°F (−4.8), 2025 30.0°F (+6.3), 2026 3.0°F (−20.7). 2 of 6 ran warmer than normal.
| March | Mean | Against normal | Precip. |
|---|---|---|---|
| 2021 | 19.3°F | −4.4°F | 2.04 in |
| 2022 | 28.1°F | +4.4°F | 1.32 in |
| 2023 | 22.0°F | −1.7°F | 1.03 in |
| 2024 | 18.9°F | −4.8°F | 0.74 in |
| 2025 | 30.0°F | +6.3°F | 1.15 in |
| 2026 | 3.0°F | −20.7°F | 0.15 in |
Source: records: ACIS, station USW00025506; recent months: ACIS, station USW00025506. Records and recent months use complete months only.
How does March in Iliamna 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; Iliamna's is 32°F.
Source: NOAA NCEI 1991-2020 monthly normals for every station in the state.