As of 07:53 CDT

Sioux City, IA weather in December

72°

Sioux City, Sunday, 9 August, 07:53

Mostly clear. Feels like 72°. High 93°, low 71°.

Pressure29.80 inHg

Wind1 mph E

Humidity70%

Visibility6.2 mi

Dew point62°

See detailed hourly forecast

In December, Sioux City, IA averages a high of 32.5° and a low of 17.5°. About 1.2 inches of precipitation fall over the month (6 wet days). The record high is 66.4° (2021) and the record low -27.4° (1989). Normals are computed over the last 60 years.

Day	High	Low	Chance of precip.	Record high	Record low
1	37°	23.2°	27%	63.9° (1998)	-3.3° (1985)
2	36.7°	21.4°	15%	61.9° (1998)	-11.7° (1985)
3	35.4°	20.8°	15%	59.5° (1998)	-15.3° (1985)
4	36.7°	20.5°	17%	57.7° (1998)	-4.5° (2025)
5	36°	21°	18%	59° (2001)	-6.7° (2005)
6	32.9°	18.7°	13%	54.1° (1981)	-10.1° (2005)
7	33.3°	19.4°	18%	57.4° (1984)	-9.2° (1976)
8	33.3°	18.7°	20%	54° (1970)	-13.9° (1978)
9	33.6°	18.3°	18%	55.2° (2015)	-6.9° (1978)
10	33.6°	17.2°	12%	57.7° (1979)	-11.6° (1972)
11	33.6°	18.1°	15%	57.7° (1965)	-13.4° (1994)
12	33.4°	18°	13%	55° (1993)	-20.7° (2000)
13	34.2°	19°	18%	51.1° (2014)	-22.4° (1961)
14	33.6°	19°	25%	55.8° (2014)	-17.7° (1985)
15	32.7°	18.9°	27%	66.4° (2021)	-17.3° (1963)
16	32.2°	17.4°	23%	52.9° (1962)	-17° (1963)
17	31.1°	16.3°	17%	56.3° (1980)	-12.8° (1983)
18	32°	16.7°	10%	56.5° (1976)	-20° (1983)
19	30.7°	15.8°	12%	48.6° (1966)	-23.3° (1983)
20	30.6°	16.2°	17%	48.9° (1967)	-21.5° (1983)
21	30.9°	16.2°	13%	50.2° (2019)	-19.7° (1963)
22	31.6°	16.7°	12%	54° (1988)	-23.8° (1989)
23	29.8°	15.1°	22%	50.4° (2020)	-27.4° (1989)
24	28.8°	13.6°	22%	55° (2021)	-27° (1983)
25	30.4°	14.2°	13%	52.2° (2016)	-21.6° (1983)
26	31.8°	17.4°	18%	49.6° (2016)	-14.3° (1964)
27	33.1°	18.3°	25%	53.4° (2013)	-10.8° (1996)
28	32.5°	17.8°	22%	60.4° (1984)	-9.2° (1993)
29	29.1°	15.1°	20%	56.1° (1999)	-10.8° (1990)
30	30.2°	13.3°	25%	56.1° (2004)	-16.1° (1968)
31	26.1°	10.4°	13%	49.3° (1999)	-21.5° (1973)