Rockford Weather in 1991

Historical record of Rockford, Illinois weather for the year 1991 based on NOAA data.

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1991 Rockford Weather Extremes
Highest temperature	99 °F	August 2
Lowest temperature	-13 °F	January 22
Highest daily low	75 °F	July 21
Lowest daily high	7 °F	December 4
Most daily precipitation	2.8 inches	September 12
Most daily snow	7.0 inches	December 2
Total annual precipitation	32.4 inches	-
Total annual snow	38.7 inches	-

What was the hottest temperature in Rockford in 1991?

The highest temperature recorded in Rockford, Illinois in 1991 was 99 °F which happened on August 2.

Highest Temperatures: All-Time By Year

Highest Temperatures in Rockford in 1991

Rank	Temperature	Date
1	99 °F	Aug 2
2	98 °F	Jul 19
3	96 °F	Aug 28
3	96 °F	Jul 20
5	95 °F	Sep 9
5	95 °F	Aug 26
5	95 °F	Aug 25
5	95 °F	Jul 22
9	94 °F	Aug 30
9	94 °F	Aug 1

What was the coldest temperature in Rockford in 1991?

The lowest temperature recorded in Rockford, Illinois in 1991 was -13 °F which happened on Jan 22.

Lowest Temperatures: All-Time By Year

Lowest Temperatures in Rockford in 1991

Rank	Temperature	Date
1	-13 °F	January 22
2	-7 °F	January 25
3	-6 °F	January 21
3	-6 °F	January 3
5	-4 °F	December 4
5	-4 °F	January 30
7	-2 °F	January 24
8	-1 °F	February 16
9	0 °F	January 4
9	0 °F	January 2

January 1991 Rockford Weather

Day	High (°F)	Low (°F)	Precip. (inches)	Snow (inches)
January 1	30	10	0.00	0.0
January 2	21	0	0.00	0.3
January 3	12	-6	0.00	0.0
January 4	21	0	0.00	0.0
January 5	28	20	0.43	5.1
January 6	20	10	0.00	0.0
January 7	26	4	0.00	0.0
January 8	28	15	0.03	0.3
January 9	27	6	0.01	0.1
January 10	29	4	0.04	0.6
January 11	31	25	0.27	4.7
January 12	30	15	0.02	0.1
January 13	31	15	0.00	0.0
January 14	40	15	0.00	0.0
January 15	35	17	0.17	0.8
January 16	35	23	0.07	0.7
January 17	30	14	0.01	0.0
January 18	29	8	0.00	0.0
January 19	41	29	0.00	0.0
January 20	35	16	0.06	2.0
January 21	16	-6	0.00	0.0
January 22	29	-13	0.00	0.1
January 23	32	8	0.00	0.0
January 24	8	-2	0.00	0.0
January 25	9	-7	0.00	0.0
January 26	20	2	0.00	0.0
January 27	26	9	0.00	0.0
January 28	31	12	0.00	0.0
January 29	21	4	0.01	0.5
January 30	14	-4	0.00	0.0
January 31	19	5	0.00	0.0

February 1991 Rockford Weather

Day	High (°F)	Low (°F)	Precip. (inches)	Snow (inches)
February 1	34	10	0.00	0.0
February 2	41	21	0.00	0.0
February 3	44	27	0.00	0.0
February 4	45	33	0.00	0.0
February 5	47	25	0.00	0.0
February 6	35	30	0.00	0.0
February 7	44	26	0.00	0.0
February 8	38	24	0.00	0.0
February 9	47	24	0.00	0.0
February 10	32	23	0.00	0.0
February 11	26	13	0.00	0.0
February 12	35	11	0.00	0.0
February 13	36	26	0.02	0.7
February 14	29	10	0.10	1.7
February 15	11	1	0.00	0.0
February 16	31	-1	0.00	0.0
February 17	39	22	0.00	0.0
February 18	38	34	0.31	0.0
February 19	36	30	0.00	0.0
February 20	46	27	0.00	0.0
February 21	54	29	0.00	0.0
February 22	41	23	0.00	0.0
February 23	33	19	0.00	0.0
February 24	35	20	0.00	0.0
February 25	26	13	0.00	0.0
February 26	27	10	0.02	0.4
February 27	31	12	0.00	0.0
February 28	42	25	0.00	0.0

March 1991 Rockford Weather

Day	High (°F)	Low (°F)	Precip. (inches)	Snow (inches)
March 1	49	40	0.83	0.0
March 2	44	25	0.15	0.0
March 3	28	18	0.00	0.0
March 4	40	19	0.00	0.0
March 5	48	25	0.00	0.0
March 6	47	26	0.00	0.0
March 7	33	20	0.00	0.0
March 8	47	19	0.02	0.1
March 9	37	25	0.00	0.0
March 10	43	18	0.00	0.0
March 11	49	33	0.00	0.0
March 12	35	29	0.55	5.6
March 13	36	28	0.02	0.7
March 14	41	26	0.00	0.0
March 15	46	22	0.00	0.0
March 16	49	28	0.00	0.0
March 17	40	33	0.42	0.0
March 18	47	35	0.02	0.0
March 19	56	27	0.00	0.0
March 20	59	27	0.00	0.0
March 21	71	43	0.04	0.0
March 22	62	43	0.26	0.0
March 23	53	34	0.12	0.0
March 24	55	36	0.00	0.0
March 25	66	33	0.00	0.0
March 26	78	52	0.33	0.0
March 27	72	35	1.91	0.0
March 28	51	27	0.02	0.0
March 29	36	23	0.00	0.0
March 30	41	22	0.00	0.0
March 31	53	32	0.08	0.5

April 1991 Rockford Weather

Day	High (°F)	Low (°F)	Precip. (inches)
April 1	52	27	0.00
April 2	55	26	0.00
April 3	70	37	0.00
April 4	55	42	0.06
April 5	78	41	0.00
April 6	84	54	0.00
April 7	78	53	0.00
April 8	78	58	0.05
April 9	58	37	0.38
April 10	55	33	0.00
April 11	43	32	0.00
April 12	47	37	0.12
April 13	47	40	0.00
April 14	62	46	0.62
April 15	63	41	0.32
April 16	60	37	0.00
April 17	63	39	0.00
April 18	57	37	0.00
April 19	57	43	0.00
April 20	55	35	0.00
April 21	60	35	0.00
April 22	61	30	0.00
April 23	52	37	0.25
April 24	66	34	0.00
April 25	65	43	0.00
April 26	75	42	0.00
April 27	73	54	0.34
April 28	77	43	0.00
April 29	76	54	0.01
April 30	61	47	0.00

May 1991 Rockford Weather

Day	High (°F)	Low (°F)	Precip. (inches)
May 1	55	39	0.00
May 2	67	34	0.00
May 3	56	37	0.02
May 4	63	43	0.00
May 5	63	43	0.54
May 6	49	42	0.00
May 7	65	38	0.00
May 8	66	47	0.00
May 9	77	47	0.00
May 10	78	53	0.00
May 11	86	57	0.00
May 12	87	59	0.00
May 13	88	63	0.01
May 14	87	63	0.00
May 15	87	58	0.02
May 16	79	63	0.07
May 17	73	49	0.53
May 18	51	47	0.29
May 19	66	48	0.00
May 20	78	50	0.00
May 21	82	59	0.22
May 22	84	65	0.02
May 23	84	68	0.01
May 24	82	68	0.13
May 25	79	67	0.50
May 26	81	67	0.00
May 27	88	62	0.00
May 28	93	67	0.00
May 29	89	69	0.21
May 30	88	67	0.00
May 31	86	67	0.15

June 1991 Rockford Weather

Day	High (°F)	Low (°F)	Precip. (inches)
June 1	88	65	0.00
June 2	86	68	0.00
June 3	85	62	0.00
June 4	72	55	0.00
June 5	75	51	0.00
June 6	78	54	0.00
June 7	84	50	0.00
June 8	85	54	0.00
June 9	87	57	0.00
June 10	87	67	0.21
June 11	84	63	0.25
June 12	87	61	1.59
June 13	89	60	0.09
June 14	90	68	0.27
June 15	83	68	0.16
June 16	86	63	0.00
June 17	84	59	0.00
June 18	87	56	0.00
June 19	90	59	0.00
June 20	90	59	0.00
June 21	91	62	0.60
June 22	63	60	0.00
June 23	76	60	0.00
June 24	82	57	0.00
June 25	85	58	0.00
June 26	90	62	0.00
June 27	90	71	0.00
June 28	88	67	0.00
June 29	93	68	0.00
June 30	89	69	0.12

July 1991 Rockford Weather

Day	High (°F)	Low (°F)	Precip. (inches)
July 1	91	66	0.00
July 2	91	67	0.00
July 3	87	64	0.25
July 4	81	62	0.10
July 5	86	60	0.00
July 6	93	66	0.00
July 7	92	71	0.37
July 8	82	65	0.00
July 9	79	61	0.00
July 10	87	58	0.00
July 11	86	62	0.00
July 12	86	67	0.01
July 13	81	63	0.00
July 14	83	59	0.00
July 15	85	52	0.00
July 16	89	57	0.00
July 17	89	65	0.00
July 18	93	68	0.00
July 19	98	66	0.00
July 20	96	71	0.00
July 21	83	75	0.02
July 22	95	74	0.00
July 23	84	62	0.00
July 24	85	55	0.00
July 25	79	54	0.00
July 26	79	51	0.00
July 27	82	52	0.00
July 28	83	60	0.04
July 29	78	59	0.00
July 30	83	52	0.00
July 31	91	57	0.00

August 1991 Rockford Weather

Day	High (°F)	Low (°F)	Precip. (inches)
August 1	94	59	0.00
August 2	99	67	0.00
August 3	82	64	0.00
August 4	79	59	0.00
August 5	79	58	0.00
August 6	78	63	0.03
August 7	73	66	0.26
August 8	75	62	1.03
August 9	82	59	0.00
August 10	82	61	0.00
August 11	85	58	0.00
August 12	86	58	0.00
August 13	85	57	0.00
August 14	87	54	0.00
August 15	87	62	0.00
August 16	89	63	0.06
August 17	81	63	0.11
August 18	85	60	0.00
August 19	69	59	0.20
August 20	79	54	0.00
August 21	86	56	0.00
August 22	90	63	0.00
August 23	86	60	0.00
August 24	92	65	0.00
August 25	95	66	0.00
August 26	95	66	0.00
August 27	93	67	0.00
August 28	96	70	0.00
August 29	91	69	0.00
August 30	94	68	0.00
August 31	84	60	0.00

September 1991 Rockford Weather

Day	High (°F)	Low (°F)	Precip. (inches)
September 1	81	58	0.00
September 2	87	62	0.00
September 3	80	62	0.80
September 4	79	54	0.00
September 5	81	50	0.00
September 6	88	54	0.00
September 7	90	58	0.00
September 8	87	62	0.00
September 9	95	69	0.37
September 10	83	64	0.00
September 11	75	60	0.01
September 12	82	61	2.82
September 13	87	66	0.11
September 14	89	68	0.32
September 15	88	71	0.03
September 16	74	55	0.00
September 17	80	49	0.00
September 18	61	41	0.05
September 19	54	41	0.00
September 20	61	33	0.00
September 21	68	35	0.03
September 22	66	46	0.03
September 23	63	41	0.00
September 24	59	47	0.02
September 25	67	47	0.00
September 26	58	38	0.00
September 27	55	30	0.00
September 28	67	32	0.00
September 29	68	37	0.00
September 30	78	47	0.00

October 1991 Rockford Weather

Day	High (°F)	Low (°F)	Precip. (inches)
October 1	74	38	0.00
October 2	74	56	0.04
October 3	69	52	0.44
October 4	55	46	2.18
October 5	55	36	0.13
October 6	52	34	0.01
October 7	57	31	0.00
October 8	77	41	0.00
October 9	74	50	0.00
October 10	65	36	0.01
October 11	65	45	0.00
October 12	58	37	0.00
October 13	58	29	0.14
October 14	51	41	0.01
October 15	49	28	0.00
October 16	65	27	0.00
October 17	76	41	0.00
October 18	57	33	0.26
October 19	49	26	0.00
October 20	54	29	0.00
October 21	67	35	0.00
October 22	77	53	0.00
October 23	78	56	0.02
October 24	71	63	0.33
October 25	67	49	0.08
October 26	49	46	0.13
October 27	51	45	0.00
October 28	58	50	0.21
October 29	68	44	0.36
October 30	44	33	0.16
October 31	53	36	0.26

November 1991 Rockford Weather

Day	High (°F)	Low (°F)	Precip. (inches)	Snow (inches)
November 1	56	30	0.52	0.0
November 2	30	17	0.00	0.0
November 3	22	14	0.00	0.0
November 4	24	10	0.00	0.0
November 5	37	13	0.01	0.0
November 6	31	15	0.00	0.0
November 7	25	7	0.00	0.0
November 8	31	7	0.00	0.0
November 9	40	12	0.00	0.0
November 10	37	19	0.00	0.0
November 11	37	30	0.00	0.0
November 12	37	32	0.00	0.0
November 13	57	31	0.00	0.0
November 14	53	31	0.35	0.0
November 15	57	44	0.31	0.0
November 16	48	32	0.00	0.0
November 17	50	33	0.37	0.0
November 18	65	50	0.12	0.0
November 19	60	45	0.29	0.0
November 20	53	30	0.00	0.0
November 21	54	24	0.00	0.0
November 22	52	33	0.02	0.0
November 23	45	24	0.30	0.3
November 24	25	15	0.00	0.0
November 25	23	8	0.00	0.0
November 26	36	7	0.00	0.0
November 27	42	33	0.18	0.4
November 28	34	30	0.63	0.0
November 29	58	34	1.13	0.0
November 30	59	19	0.01	0.0

December 1991 Rockford Weather

Day	High (°F)	Low (°F)	Precip. (inches)	Snow (inches)
December 1	28	16	0.00	0.0
December 2	31	23	0.50	7.0
December 3	27	6	0.13	2.9
December 4	7	-4	0.01	0.1
December 5	33	7	0.01	0.1
December 6	40	3	0.00	0.0
December 7	45	39	0.00	0.0
December 8	60	30	0.04	0.0
December 9	43	23	0.00	0.0
December 10	49	29	0.00	0.0
December 11	50	25	0.00	0.0
December 12	60	37	0.70	0.0
December 13	40	27	0.00	0.0
December 14	35	21	0.02	0.2
December 15	29	7	0.01	0.2
December 16	37	10	0.00	0.0
December 17	36	20	0.00	0.0
December 18	20	7	0.00	0.0
December 19	32	6	0.00	0.0
December 20	34	29	0.40	2.5
December 21	34	25	0.00	0.0
December 22	33	29	0.00	0.0
December 23	35	17	0.00	0.0
December 24	38	15	0.00	0.0
December 25	38	14	0.00	0.0
December 26	41	24	0.00	0.0
December 27	38	31	0.00	0.0
December 28	34	31	0.00	0.0
December 29	33	20	0.00	0.0
December 30	35	21	0.00	0.0
December 31	33	31	0.00	0.0

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Weather Station Details

Years	Station	Coordinates
1951–2024	Greater Rockford Airport	location
1893–1950	Rockford	location