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Sioux City March Weather

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

Typical Sioux City March Weather 1991–2020
Average daily high	48.3 °F
Average daily low	26.1 °F
Average monthly precipitation	1.8 inches
Average monthly snow	5.7 inches
Daily chance of precipitation	26.0%
Daily chance of snow	10.9%

Sioux City March Weather Records 1948–2024
Highest temperature	91 °F	March 30, 1968
Lowest temperature	-22 °F	March 5, 1960
Highest daily low	65 °F	March 18, 2012
Lowest daily high	2 °F	March 3, 2019
Hottest average high temperature	67.8 °F	2012
Coldest average high temperature	27.3 °F	1960
Most daily precipitation	2.3 inches	March 31, 2007
Most monthly precipitation	5.9 inches	1987
Most daily snow	18.4 inches	March 15, 2004
Most monthly snow	26.2 inches	1962

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

Day	Average (°F)		Record (°F)
Day	High	Low	High	Low
March 1	40.2	19.5	77	-15
March 2	40.9	20.0	76	-10
March 3	41.3	20.5	71	-14
March 4	41.8	20.9	74	-16
March 5	42.2	21.3	74	-22
March 6	42.6	21.7	80	-11
March 7	43.1	22.0	80	-10
March 8	43.6	22.4	71	-7
March 9	44.1	22.8	73	-3
March 10	44.5	23.2	74	-9
March 11	45.0	23.6	80	-19
March 12	45.7	24.1	78	-14
March 13	46.4	24.6	81	-9
March 14	47.0	25.2	77	-12
March 15	47.6	25.7	80	1
March 16	48.3	26.2	90	1
March 17	49.1	26.8	85	0
March 18	49.8	27.3	86	3
March 19	50.3	27.7	79	0
March 20	50.8	28.0	79	3
March 21	51.2	28.3	72	-2
March 22	51.9	28.6	79	-1
March 23	52.5	29.1	77	4
March 24	53.0	29.5	82	-4
March 25	53.5	29.9	75	5
March 26	53.9	30.2	84	-2
March 27	54.3	30.5	82	8
March 28	54.6	30.9	83	9
March 29	54.9	31.2	89	5
March 30	55.3	31.5	91	8
March 31	55.7	31.8	90	11

Weather Station Details

Years	Station	Coordinates
1948–2024	Sioux City Gateway Airport	location