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Sioux City April Weather

Averages and records for weather in Sioux City, Iowa in the month of April.

Typical Sioux City April Weather 1991–2020
Average daily high	61.7 °F
Average daily low	36.9 °F
Average monthly precipitation	3.1 inches
Average monthly snow	2.3 inches
Daily chance of precipitation	33.4%
Daily chance of snow	4.8%

Sioux City April Weather Records 1948–2024
Highest temperature	97 °F	April 22, 1980
Lowest temperature	-2 °F	April 3, 1975
Highest daily low	64 °F	April 15, 2002
Lowest daily high	20 °F	April 1, 1975
Hottest average high temperature	71.8 °F	1955
Coldest average high temperature	51.9 °F	1983
Most daily precipitation	2.5 inches	April 14, 2012
Most monthly precipitation	6.7 inches	1984
Most daily snow	6.8 inches	April 4, 1957
Most monthly snow	11.5 inches	1997

Note: Daily averages are a moving average which includes 14 days before and after

Day	Average (°F)		Record (°F)
Day	High	Low	High	Low
April 1	56.2	32.1	93	14
April 2	56.6	32.4	92	9
April 3	57.0	32.7	80	-2
April 4	57.4	33.1	86	7
April 5	57.8	33.5	89	16
April 6	58.1	33.9	91	12
April 7	58.5	34.2	88	13
April 8	59.0	34.5	88	14
April 9	59.7	34.8	87	17
April 10	60.1	35.2	84	18
April 11	60.5	35.5	89	21
April 12	60.8	35.8	92	15
April 13	61.0	36.0	91	15
April 14	61.3	36.3	90	17
April 15	61.6	36.7	96	16
April 16	61.7	37.1	90	20
April 17	62.0	37.5	88	20
April 18	62.3	37.8	92	19
April 19	62.7	38.2	90	19
April 20	63.0	38.6	91	22
April 21	63.4	39.0	94	23
April 22	63.8	39.4	97	22
April 23	64.3	39.9	92	21
April 24	64.7	40.5	89	23
April 25	65.2	40.9	93	25
April 26	65.7	41.3	91	19
April 27	66.1	41.8	91	24
April 28	66.3	42.1	91	27
April 29	66.5	42.4	93	25
April 30	66.9	42.7	93	26

Weather Station Details

Years	Station	Coordinates
1948–2024	Sioux City Gateway Airport	location