Sioux City weather in February: Sioux City, Iowa: normal highs, lows, rain and records for February
Sioux City in February has a normal high of 34°F and a normal low of 15°F, a daily mean of 25°F, rising from 31°F on the 1st to 39°F by the 29th. Measurable precipitation falls on 7 days in a normal February, 0.86 inches in all. (NOAA 1991-2020 normals)
In metric: a normal high of 1°C and low of −10°C, 22 mm of precipitation and 22 cm of snow in February.
- NOAA stationSioux City Airport
- Station IDUSW00014943
- Location42.39°N 96.38°W
- Elevation1,095 ft (334 m)
- From the center7 miles
- Population86,875
- Jan 30° 10°
- Feb 34° 15°
- Mar 48° 26°
- Apr 61° 37°
- May 72° 49°
- Jun 82° 59°
- Jul 85° 63°
- Aug 83° 61°
- Sep 77° 51°
- Oct 63° 38°
- Nov 47° 25°
- Dec 33° 15°
Each month: normal high (large) and low, °F. Fill: the month's normal mean, colder blue to hotter red.
How warm is Sioux City in February?
The normal high is 34°F and the normal low 15°F, for a daily mean of 24.5°F. February is 4.5°F warmer than January and 12.2°F cooler than March. February is the 10th warmest month of the year in Sioux City and the 11th wettest, and the snowiest. Across the month the normal high rises 8°F, from 31°F on February 1 to 39°F on February 29. From one year to the next February's mean temperature typically moves about 6.6°F either way (NOAA's standard deviation), so roughly two Februarys in three average between 18°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 23%).
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in |
|---|---|---|---|---|
| February 1 | 31°F | 11°F | 23% | 7% |
| February 8 | 32°F | 13°F | 23% | 8% |
| February 15 | 34°F | 15°F | 23% | 9% |
| February 22 | 36°F | 17°F | 23% | 10% |
| February 28 | 39°F | 20°F | 23% | 10% |
Every day of February: normal high, low and chance of precipitation (warmest afternoon February 29, coldest night February 1)
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in | Daylight |
|---|---|---|---|---|---|
| February 1 | 31°F | 11°F | 23% | 7% | 10 h |
| February 2 | 31°F | 11°F | 23% | 7% | 10 h |
| February 3 | 31°F | 12°F | 23% | 7% | 10 h |
| February 4 | 31°F | 12°F | 23% | 8% | 10 h |
| February 5 | 31°F | 12°F | 23% | 8% | 10 h 10 min |
| February 6 | 32°F | 12°F | 23% | 8% | 10 h 10 min |
| February 7 | 32°F | 12°F | 23% | 8% | 10 h 10 min |
| February 8 | 32°F | 13°F | 23% | 8% | 10 h 10 min |
| February 9 | 32°F | 13°F | 23% | 8% | 10 h 20 min |
| February 10 | 33°F | 13°F | 23% | 8% | 10 h 20 min |
| February 11 | 33°F | 13°F | 23% | 9% | 10 h 20 min |
| February 12 | 33°F | 14°F | 23% | 9% | 10 h 20 min |
| February 13 | 33°F | 14°F | 23% | 9% | 10 h 30 min |
| February 14 | 34°F | 14°F | 23% | 9% | 10 h 30 min |
| February 15 | 34°F | 15°F | 23% | 9% | 10 h 30 min |
| February 16 | 34°F | 15°F | 23% | 9% | 10 h 40 min |
| February 17 | 35°F | 15°F | 23% | 9% | 10 h 40 min |
| February 18 | 35°F | 16°F | 23% | 9% | 10 h 40 min |
| February 19 | 35°F | 16°F | 23% | 10% | 10 h 40 min |
| February 20 | 36°F | 16°F | 23% | 10% | 10 h 50 min |
| February 21 | 36°F | 17°F | 23% | 10% | 10 h 50 min |
| February 22 | 36°F | 17°F | 23% | 10% | 10 h 50 min |
| February 23 | 37°F | 18°F | 23% | 10% | 10 h 50 min |
| February 24 | 37°F | 18°F | 23% | 10% | 11 h |
| February 25 | 38°F | 18°F | 23% | 10% | 11 h |
| February 26 | 38°F | 19°F | 23% | 10% | 11 h |
| February 27 | 39°F | 19°F | 23% | 10% | 11 h 10 min |
| February 28 | 39°F | 20°F | 23% | 10% | 11 h 10 min |
| February 29 | 39°F | 20°F | 23% | 10% | 11 h 10 min |
- Normal high
- 34°FFebruary average
- Normal low
- 15°FFebruary average
- Precipitation
- 0.86 inmonth total
- Days with precipitation
- 70.01 inch or more
- Snowfall
- 8.7 inmonth total
- Nights at 32°F or colder
- 27
- Daylight
- 10 h to 11 h 10 minFebruary 1 to February 28
- Sunshine
- 77%of clear-sky sunlight (NASA)
Source: NOAA NCEI 1991-2020 daily normals, station USW00014943; monthly normals. Daylight is computed from the place's latitude with NOAA's solar equations.
Does it rain or snow in Sioux City in February?
On a given February day the chance of 0.01 inch or more is 23% on average, highest around February 29 (23%). In all, 0.86 in falls on 7 days of a normal February.
In a normal February in Sioux City, 27 nights fall to freezing, 13 days stay below freezing all day and snowfall averages 8.7 inches.
Snow falls on 6 days in a normal February, and an inch or more covers the ground on 15 days.
Source: NOAA NCEI 1991-2020 daily and monthly normals, station USW00014943.
How humid and windy is Sioux City in February?
At 3 p.m. the normal temperature is 36°F with 57% relative humidity and a dew point of 22°F; at 6 a.m. it is 23°F with 81% humidity. The wind averages 11.3 mph, most often from the northwest in the afternoon. A dew point under 50°F feels dry.
| Time | Temperature | Dew point | Humidity | Wind | Clear or few clouds |
|---|---|---|---|---|---|
| 6 a.m. | 23°F | 18°F | 81% | 10.1 mph | 52% |
| 9 a.m. | 25°F | 19°F | 77% | 11.1 mph | 56% |
| noon | 32°F | 21°F | 64% | 12.7 mph | 50% |
| 3 p.m. | 36°F | 22°F | 57% | 14.0 mph | 54% |
| 6 p.m. | 34°F | 22°F | 63% | 11.9 mph | 51% |
| 9 p.m. | 28°F | 21°F | 74% | 10.3 mph | 59% |
Source: NOAA NCEI 1991-2020 hourly normals, station USW00014943. 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 February in Sioux City?
The warmest February temperature on Sioux City's official record (since 1889) is 77°F, on February 26, 2024; the coldest is −31°F, on February 11, 1899. The wettest February brought 3.12 in (1915); the snowiest, 25.0 inches (1936).
The February mean against the 1991-2020 normal of 24.5°F: 2021 12.3°F (−12.2), 2022 24.7°F (+0.2), 2023 25.8°F (+1.3), 2024 36.8°F (+12.3), 2025 20.0°F (−4.5), 2026 34.3°F (+9.8). 4 of 6 ran warmer than normal.
| February | Mean | Against normal | Precip. |
|---|---|---|---|
| 2021 | 12.3°F | −12.2°F | 0.85 in |
| 2022 | 24.7°F | +0.2°F | 0.10 in |
| 2023 | 25.8°F | +1.3°F | 1.33 in |
| 2024 | 36.8°F | +12.3°F | 0.43 in |
| 2025 | 20.0°F | −4.5°F | 0.37 in |
| 2026 | 34.3°F | +9.8°F | 0.01 in |
Source: records: ACIS, NWS threaded record SUXthr; recent months: ACIS, station USW00014943. Records and recent months use complete months only.
How does February in Sioux City compare across Iowa?
Across the 132 places PlainClimate covers in Iowa, February normal highs run from 26°F in Northwood to 39°F in Shenandoah; Sioux City's is 34°F.
Source: NOAA NCEI 1991-2020 monthly normals for every station in the state.