Janesville Weather in 2015

Historical record of Janesville, Wisconsin weather for the year 2015 based on NOAA data.

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2015 Janesville Weather Extremes
Highest temperature	93 °F	August 15
Lowest temperature	-12 °F	March 1
Highest daily low	71 °F	July 18
Lowest daily high	1 °F	January 8
Most daily precipitation	2.1 inches	June 12
Most daily snow	11.0 inches	November 21
Total annual precipitation	37.7 inches	-

What was the hottest temperature in Janesville in 2015?

The highest temperature recorded in Janesville, Wisconsin in 2015 was 93 °F which happened on August 15.

Highest Temperatures: All-Time By Year

Highest Temperatures in Janesville in 2015

Rank	Temperature	Date
1	93 °F	Aug 15
2	90 °F	Sep 2
2	90 °F	Aug 17
2	90 °F	Aug 3
2	90 °F	Jul 18
2	90 °F	Jun 11
7	89 °F	Sep 4
7	89 °F	Aug 18
7	89 °F	Jul 14
7	89 °F	Jun 10

What was the coldest temperature in Janesville in 2015?

The lowest temperature recorded in Janesville, Wisconsin in 2015 was -12 °F which happened 2 different times.

Lowest Temperatures: All-Time By Year

Lowest Temperatures in Janesville in 2015

Rank	Temperature	Date
1	-12 °F	March 1
1	-12 °F	February 28
3	-11 °F	February 24
3	-11 °F	February 23
3	-11 °F	February 20
3	-11 °F	January 6
7	-10 °F	February 19
7	-10 °F	January 8
7	-10 °F	January 7
10	-9 °F	February 5
10	-9 °F	January 10
10	-9 °F	January 5

January 2015 Janesville Weather

Day	High (°F)	Low (°F)	Precip. (inches)	Snow (inches)
January 1	18	-1	0.00	0.0
January 2	32	13	0.00	0.0
January 3	33	16	0.12	1.2
January 4	32	26	0.16	2.4
January 5	28	-9	0.02	1.0
January 6	2	-11	0.17	2.0
January 7	11	-10	0.00	0.0
January 8	1	-10	0.00	0.0
January 9	16	-8	0.22	2.5
January 10	6	-9	0.00	0.0
January 11	20	-7	0.00	0.0
January 12	30	8	0.00	0.0
January 13	17	5	0.00	0.0
January 14	19	-8	0.00	0.0
January 15	20	2	0.00	0.0
January 16	36	18	0.00	0.0
January 17	36	22	0.00	0.0
January 18	41	34	0.00	0.0
January 19	42	19	0.00	0.0
January 20	39	19	0.00	0.0
January 21	34	28	0.01	0.0
January 22	32	28	0.00	0.0
January 23	31	25	0.00	0.0
January 24	32	25	0.00	0.0
January 25	36	28	0.00	0.0
January 26	28	12	0.00	0.0
January 27	25	14	0.10	1.0
January 28	30	19	0.00	0.0
January 29	34	19	0.00	0.0
January 30	35	14	0.00	0.0
January 31	28	14	0.00	0.0

February 2015 Janesville Weather

Day	High (°F)	Low (°F)	Precip. (inches)	Snow (inches)
February 1	34	21	0.30	4.5
February 2	23	1	0.30	6.0
February 3	13	0	0.00	0.0
February 4	20	6	0.13	2.0
February 5	19	-9	0.00	0.0
February 6	14	-7	0.00	0.0
February 7	33	12	0.00	0.0
February 8	43	16	0.00	0.0
February 9	34	20	0.00	0.0
February 10	28	7	0.00	0.0
February 11	33	11	0.00	0.0
February 12	35	6	0.00	0.0
February 13	15	-1	0.00	0.0
February 14	27	4	0.00	0.0
February 15	11	-5	0.00	0.0
February 16	14	-4	0.00	0.0
February 17	18	4	0.00	0.0
February 18	18	0	0.00	0.0
February 19	6	-10	0.00	0.0
February 20	6	-11	0.00	0.0
February 21	19	1	0.03	0.5
February 22	30	9	0.00	0.0
February 23	14	-11	0.00	0.0
February 24	11	-11	0.00	0.0
February 25	35	8	0.00	0.0
February 26	17	5	0.07	1.0
February 27	15	-8	0.00	0.0
February 28	15	-12	0.00	0.0

March 2015 Janesville Weather

Day	High (°F)	Low (°F)	Precip. (inches)	Snow (inches)
March 1	21	-12	0.00	0.0
March 2	27	7	0.00	0.0
March 3	29	8	0.26	3.0
March 4	33	12	0.12	1.3
March 5	21	-8	0.00	0.0
March 6	16	-6	0.00	0.0
March 7	29	2	0.00	0.0
March 8	46	20	0.00	0.0
March 9	44	22	0.00	0.0
March 10	49	22	0.00	0.0
March 11	51	27	0.00	0.0
March 12	56	27	0.00	0.0
March 13	57	27	0.00	0.0
March 14	65	34	0.00	0.0
March 15	61	27	0.00	0.0
March 16	61	28	0.00	0.0
March 17	73	35	0.00	0.0
March 18	46	25	0.00	0.0
March 19	49	25	0.00	0.0
March 20	46	35	0.00	0.0
March 21	57	36	0.00	0.0
March 22	53	27	0.00	0.0
March 23	35	25	0.36	6.0
March 24	33	10	0.06	0.9
March 25	38	11	0.07	0.0
March 26	42	28	0.00	0.0
March 27	38	19	0.00	0.0
March 28	34	14	0.00	0.0
March 29	41	15	0.00	0.0
March 30	47	23	0.00	0.0
March 31	59	34	0.03	0.0

April 2015 Janesville Weather

Day	High (°F)	Low (°F)	Precip. (inches)
April 1	61	33	0.00
April 2	75	34	0.00
April 3	67	42	0.00
April 4	50	27	0.00
April 5	59	29	0.00
April 6	68	30	0.00
April 7	65	32	0.01
April 8	48	39	0.06
April 9	48	39	0.20
April 10	61	37	0.23
April 11	57	30	0.01
April 12	64	32	0.00
April 13	68	38	0.13
April 14	66	33	0.00
April 15	69	34	0.00
April 16	68	41	0.00
April 17	71	43	0.00
April 18	79	45	0.00
April 19	71	47	0.00
April 20	75	48	0.44
April 21	48	37	0.03
April 22	46	33	0.00
April 23	46	28	0.00
April 24	55	26	0.00
April 25	54	29	0.10
April 26	47	34	0.00
April 27	60	33	0.00
April 28	65	33	0.00
April 29	65	36	0.00
April 30	69	35	0.00

May 2015 Janesville Weather

Day	High (°F)	Low (°F)	Precip. (inches)	Snow (inches)
May 1	60	35	0.00	0.0
May 2	71	38	0.00	n/a
May 3	78	52	0.00	n/a
May 4	75	54	0.10	n/a
May 5	74	49	0.44	n/a
May 6	53	48	0.38	n/a
May 7	79	49	0.00	n/a
May 8	83	59	0.00	n/a
May 9	73	55	0.07	n/a
May 10	66	48	0.00	n/a
May 11	61	47	0.01	n/a
May 12	68	45	0.16	n/a
May 13	54	38	0.00	n/a
May 14	61	41	0.00	n/a
May 15	67	46	0.20	n/a
May 16	74	59	0.10	n/a
May 17	79	61	0.01	n/a
May 18	81	50	0.00	n/a
May 19	65	44	0.00	n/a
May 20	57	40	0.00	n/a
May 21	47	41	0.01	n/a
May 22	71	43	0.00	n/a
May 23	75	42	0.00	n/a
May 24	81	50	0.00	n/a
May 25	66	59	0.62	n/a
May 26	79	62	0.04	n/a
May 27	76	60	0.68	n/a
May 28	77	56	0.07	n/a
May 29	83	60	0.00	n/a
May 30	78	54	0.68	n/a
May 31	69	40	0.82	n/a

June 2015 Janesville Weather

Day	High (°F)	Low (°F)	Precip. (inches)	Snow (inches)
June 1	63	42	0.00	n/a
June 2	66	41	0.00	n/a
June 3	75	46	0.00	n/a
June 4	79	46	0.00	n/a
June 5	82	61	0.00	n/a
June 6	73	52	0.00	n/a
June 7	76	43	0.03	n/a
June 8	83	54	0.13	n/a
June 9	82	53	0.00	n/a
June 10	89	57	0.00	n/a
June 11	90	64	0.00	n/a
June 12	67	55	2.12	n/a
June 13	65	58	0.10	n/a
June 14	76	60	0.79	n/a
June 15	82	66	0.71	n/a
June 16	83	60	0.47	n/a
June 17	79	56	0.00	n/a
June 18	81	59	0.00	n/a
June 19	81	53	0.00	n/a
June 20	77	53	0.00	n/a
June 21	73	54	0.34	n/a
June 22	86	63	0.00	n/a
June 23	80	60	0.45	n/a
June 24	80	58	0.00	n/a
June 25	78	61	0.42	n/a
June 26	76	58	0.21	n/a
June 27	72	58	0.00	n/a
June 28	79	53	0.00	n/a
June 29	76	60	0.00	n/a
June 30	78	58	0.41	n/a

July 2015 Janesville Weather

Day	High (°F)	Low (°F)	Precip. (inches)	Snow (inches)
July 1	77	56	0.00	n/a
July 2	71	48	0.00	n/a
July 3	73	52	0.00	n/a
July 4	77	55	0.00	n/a
July 5	82	57	0.00	n/a
July 6	83	59	0.00	n/a
July 7	79	61	0.36	n/a
July 8	70	50	0.00	n/a
July 9	68	48	0.00	n/a
July 10	78	n/a	0.00	n/a
July 11	82	59	0.00	n/a
July 12	75	n/a	0.01	n/a
July 13	85	52	0.85	n/a
July 14	89	65	0.38	n/a
July 15	81	54	0.00	n/a
July 16	78	58	0.00	n/a
July 17	74	55	0.78	n/a
July 18	90	71	0.00	n/a
July 19	88	67	0.71	n/a
July 20	81	61	0.00	n/a
July 21	81	60	0.00	n/a
July 22	80	57	0.00	n/a
July 23	82	54	0.00	n/a
July 24	84	53	0.00	n/a
July 25	82	54	0.00	n/a
July 26	87	53	0.00	n/a
July 27	76	56	0.00	n/a
July 28	87	59	0.00	n/a
July 29	87	63	0.00	n/a
July 30	84	54	0.00	n/a
July 31	86	61	0.01	n/a

August 2015 Janesville Weather

Day	High (°F)	Low (°F)	Precip. (inches)	Snow (inches)
August 1	83	57	0.00	n/a
August 2	87	63	0.00	n/a
August 3	90	62	0.00	n/a
August 4	n/a	55	0.00	n/a
August 5	79	54	0.00	n/a
August 6	82	57	0.00	n/a
August 7	85	56	0.00	n/a
August 8	81	63	0.02	n/a
August 9	72	62	0.00	n/a
August 10	81	64	0.00	n/a
August 11	86	60	0.03	n/a
August 12	82	57	0.00	n/a
August 13	82	59	0.00	n/a
August 14	86	61	0.00	n/a
August 15	93	66	0.09	n/a
August 16	88	66	0.09	n/a
August 17	90	60	0.00	n/a
August 18	89	66	0.36	n/a
August 19	83	65	1.57	n/a
August 20	69	58	0.02	n/a
August 21	73	52	0.00	n/a
August 22	82	53	0.00	n/a
August 23	80	61	0.00	n/a
August 24	74	52	0.02	n/a
August 25	70	53	0.00	n/a
August 26	71	55	0.00	n/a
August 27	70	48	0.00	n/a
August 28	75	50	0.00	n/a
August 29	68	57	1.28	n/a
August 30	70	61	0.00	n/a
August 31	75	57	0.00	n/a

September 2015 Janesville Weather

Day	High (°F)	Low (°F)	Precip. (inches)	Snow (inches)
September 1	84	59	0.00	n/a
September 2	90	62	0.00	n/a
September 3	83	55	0.00	n/a
September 4	89	66	0.03	n/a
September 5	88	66	0.00	n/a
September 6	84	66	0.00	n/a
September 7	80	63	0.10	n/a
September 8	82	61	0.40	n/a
September 9	78	60	0.32	n/a
September 10	80	58	0.00	n/a
September 11	74	56	0.65	n/a
September 12	69	42	0.00	n/a
September 13	66	43	0.00	n/a
September 14	71	44	0.00	n/a
September 15	83	54	0.00	n/a
September 16	85	60	0.00	n/a
September 17	84	61	0.00	n/a
September 18	82	64	1.85	n/a
September 19	76	55	0.58	n/a
September 20	70	48	0.01	n/a
September 21	73	47	0.00	n/a
September 22	76	48	0.00	n/a
September 23	81	49	0.00	n/a
September 24	82	53	0.00	n/a
September 25	78	54	0.00	n/a
September 26	77	57	0.00	n/a
September 27	78	56	0.00	n/a
September 28	75	58	0.00	n/a
September 29	79	56	0.24	n/a
September 30	63	42	0.25	n/a

October 2015 Janesville Weather

Day	High (°F)	Low (°F)	Precip. (inches)
October 1	63	42	0.00
October 2	61	44	0.00
October 3	62	46	0.00
October 4	54	46	0.00
October 5	55	47	0.02
October 6	61	52	0.00
October 7	66	46	0.00
October 8	71	47	0.00
October 9	76	38	0.05
October 10	61	38	0.00
October 11	65	38	0.00
October 12	80	50	0.00
October 13	73	48	0.00
October 14	63	37	0.00
October 15	64	37	0.00
October 16	68	38	0.00
October 17	53	28	0.00
October 18	54	28	0.00
October 19	61	28	0.00
October 20	75	46	0.00
October 21	75	54	0.00
October 22	71	46	0.00
October 23	66	45	0.00
October 24	64	50	0.47
October 25	63	35	0.00
October 26	62	34	0.00
October 27	63	34	0.00
October 28	58	47	0.90
October 29	52	37	0.03
October 30	46	36	0.00
October 31	53	36	0.13

November 2015 Janesville Weather

Day	High (°F)	Low (°F)	Precip. (inches)	Snow (inches)
November 1	50	43	0.45	0.0
November 2	64	44	0.00	0.0
November 3	72	40	0.00	0.0
November 4	72	40	0.00	0.0
November 5	72	57	0.00	0.0
November 6	70	44	0.45	0.0
November 7	51	30	0.00	0.0
November 8	50	28	0.00	0.0
November 9	54	27	0.00	0.0
November 10	56	26	0.00	0.0
November 11	55	27	0.01	0.0
November 12	62	38	0.48	0.0
November 13	49	34	0.00	0.0
November 14	46	25	0.00	0.0
November 15	56	26	0.00	0.0
November 16	63	36	0.00	0.0
November 17	57	46	0.08	0.0
November 18	59	50	1.58	0.0
November 19	57	37	0.12	0.0
November 20	41	29	0.00	0.0
November 21	39	27	0.68	11.0
November 22	27	1	0.14	2.0
November 23	26	2	0.00	0.0
November 24	38	15	0.00	0.0
November 25	42	21	0.00	0.0
November 26	49	39	0.03	0.0
November 27	56	33	1.66	0.0
November 28	34	25	0.00	0.0
November 29	35	21	0.00	0.0
November 30	39	21	0.27	0.0

December 2015 Janesville Weather

Day	High (°F)	Low (°F)	Precip. (inches)	Snow (inches)
December 1	41	35	0.53	0.0
December 2	39	31	0.01	0.0
December 3	34	30	0.00	0.0
December 4	37	28	0.00	0.0
December 5	49	27	0.00	0.0
December 6	46	30	0.00	0.0
December 7	43	28	0.00	0.0
December 8	40	31	0.00	0.0
December 9	45	33	0.00	0.0
December 10	49	33	0.00	0.0
December 11	56	38	0.00	0.0
December 12	47	38	0.02	0.0
December 13	59	42	0.30	0.0
December 14	60	53	1.66	0.0
December 15	53	35	0.05	0.0
December 16	42	34	0.05	0.0
December 17	51	28	0.00	0.0
December 18	33	22	0.00	0.0
December 19	26	11	0.02	0.2
December 20	34	11	0.00	0.0
December 21	49	34	0.16	0.0
December 22	45	36	0.41	0.0
December 23	47	33	0.00	0.0
December 24	58	33	0.48	0.0
December 25	40	29	0.00	0.0
December 26	36	30	0.00	0.0
December 27	39	33	0.07	0.0
December 28	36	29	0.00	0.0
December 29	32	24	1.10	5.2
December 30	28	24	0.00	0.0
December 31	29	22	0.01	0.2

Next Year >

Weather Station Details

Years	Station	Coordinates
1987–2024	Afton-Janesville WWTP	location
1893–1987	Janesville	location