Boulder Weather in 2020

Historical record of Boulder, Colorado weather for the year 2020 based on NOAA data.

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2020 Boulder Weather Extremes
Highest temperature	100 °F	July 18
Lowest temperature	-3 °F	February 5
Highest daily low	68 °F	July 18
Lowest daily high	18 °F	October 26
Most daily precipitation	1.7 inches	March 19
Most daily snow	16.9 inches	April 16
Total annual precipitation	17.1 inches	-
Total annual snow	124.2 inches	-

What was the hottest temperature in Boulder in 2020?

The highest temperature recorded in Boulder, Colorado in 2020 was 100 °F which happened on July 18.

Highest Temperatures: All-Time By Year

Highest Temperatures in Boulder in 2020

Rank	Temperature	Date
1	100 °F	Jul 18
2	99 °F	Sep 6
2	99 °F	Sep 5
2	99 °F	Jul 13
2	99 °F	Jul 10
6	98 °F	Aug 9
6	98 °F	Aug 7
8	97 °F	Aug 25
8	97 °F	Aug 18
10	96 °F	Aug 22
10	96 °F	Aug 8
10	96 °F	Jul 8

What was the coldest temperature in Boulder in 2020?

The lowest temperature recorded in Boulder, Colorado in 2020 was -3 °F which happened on Feb 5.

Lowest Temperatures: All-Time By Year

Lowest Temperatures in Boulder in 2020

Rank	Temperature	Date
1	-3 °F	February 5
2	1 °F	February 20
3	4 °F	October 27
4	5 °F	October 26
5	6 °F	February 11
6	8 °F	December 13
6	8 °F	February 26
8	9 °F	April 17
8	9 °F	February 4
10	10 °F	December 14
10	10 °F	October 25
10	10 °F	April 14
10	10 °F	February 14

January 2020 Boulder Weather

Day	High (°F)	Low (°F)
January 1	53	23
January 2	48	28
January 3	47	23
January 4	65	28
January 5	58	28
January 6	41	27
January 7	57	32
January 8	58	34
January 9	50	24
January 10	36	19
January 11	45	11
January 12	42	18
January 13	45	17
January 14	53	25
January 15	47	25
January 16	37	15
January 17	50	21
January 18	42	17
January 19	47	18
January 20	51	19
January 21	51	28
January 22	53	34
January 23	42	26
January 24	52	21
January 25	56	26
January 26	54	27
January 27	43	28
January 28	50	23
January 29	44	28
January 30	40	20
January 31	55	17

February 2020 Boulder Weather

Day	High (°F)	Low (°F)	Precip. (inches)	Snow (inches)
February 1	65	25	0.00	0.0
February 2	75	44	0.00	0.0
February 3	61	18	0.25	5.2
February 4	22	9	0.50	8.6
February 5	31	-3	0.00	0.0
February 6	42	20	0.00	0.0
February 7	35	23	0.31	3.7
February 8	55	21	0.01	0.2
February 9	47	24	0.24	3.9
February 10	35	11	0.00	0.0
February 11	35	6	0.45	8.5
February 12	40	14	0.04	0.6
February 13	29	14	0.15	2.0
February 14	58	10	0.00	0.0
February 15	54	24	0.00	0.0
February 16	47	22	0.00	0.0
February 17	44	23	0.00	0.0
February 18	37	13	0.04	0.5
February 19	29	15	0.09	2.6
February 20	38	1	0.10	3.3
February 21	53	15	0.00	0.0
February 22	57	28	0.00	0.0
February 23	44	35	0.01	0.0
February 24	42	27	0.00	0.0
February 25	33	20	0.00	0.0
February 26	42	8	0.00	0.0
February 27	49	28	0.00	0.0
February 28	60	29	0.00	0.0
February 29	60	37	0.00	0.0

March 2020 Boulder Weather

Day	High (°F)	Low (°F)	Precip. (inches)	Snow (inches)
March 1	52	32	0.01	0.0
March 2	45	24	0.37	4.0
March 3	57	23	0.00	0.0
March 4	62	28	0.00	0.0
March 5	52	26	0.00	0.0
March 6	67	29	0.00	0.0
March 7	68	38	0.00	0.0
March 8	69	38	0.00	0.0
March 9	62	37	0.14	0.0
March 10	62	32	0.00	0.0
March 11	67	36	0.00	0.0
March 12	56	34	0.00	0.0
March 13	38	30	0.04	0.5
March 14	38	28	0.07	1.0
March 15	51	31	0.00	0.0
March 16	59	29	0.00	0.0
March 17	52	38	0.02	0.0
March 18	61	30	0.00	0.0
March 19	53	31	1.65	7.1
March 20	33	20	0.19	1.6
March 21	52	14	0.00	0.0
March 22	53	28	0.00	0.0
March 23	57	29	0.00	0.0
March 24	62	33	0.00	0.0
March 25	66	40	0.00	0.0
March 26	60	31	0.00	0.0
March 27	50	32	0.05	0.1
March 28	50	21	0.34	2.0
March 29	54	28	0.00	0.0
March 30	57	30	0.00	0.0
March 31	66	36	0.00	0.0

April 2020 Boulder Weather

Day	High (°F)	Low (°F)	Precip. (inches)	Snow (inches)
April 1	69	40	0.00	0.0
April 2	64	22	0.21	0.6
April 3	43	17	0.03	0.3
April 4	58	23	0.00	0.0
April 5	69	34	0.00	0.0
April 6	73	37	0.00	0.0
April 7	73	43	0.00	0.0
April 8	70	39	0.00	0.0
April 9	65	31	0.00	0.0
April 10	74	36	0.00	0.0
April 11	70	44	0.00	0.0
April 12	64	19	0.56	8.8
April 13	27	15	0.69	9.9
April 14	45	10	0.00	0.0
April 15	55	28	0.00	0.0
April 16	41	25	1.58	16.9
April 17	45	9	0.05	0.8
April 18	53	28	0.00	0.0
April 19	58	33	0.00	0.0
April 20	63	34	0.00	0.0
April 21	67	35	0.00	0.0
April 22	66	43	0.00	0.0
April 23	66	42	0.00	0.0
April 24	59	39	0.05	0.0
April 25	65	38	0.00	0.0
April 26	73	34	0.00	0.0
April 27	78	42	0.00	0.0
April 28	76	52	0.00	0.0
April 29	72	35	0.00	0.0
April 30	83	46	0.00	0.0

May 2020 Boulder Weather

Day	High (°F)	Low (°F)	Precip. (inches)
May 1	81	55	0.00
May 2	80	50	0.01
May 3	71	41	0.14
May 4	69	46	0.07
May 5	70	33	0.00
May 6	68	35	0.00
May 7	75	43	0.00
May 8	62	34	0.03
May 9	62	38	0.00
May 10	61	37	0.00
May 11	59	34	0.09
May 12	66	39	0.01
May 13	78	41	0.00
May 14	76	52	0.28
May 15	66	48	0.04
May 16	69	48	0.10
May 17	71	40	0.00
May 18	84	46	0.00
May 19	87	48	0.00
May 20	86	61	0.00
May 21	75	42	0.00
May 22	82	43	0.00
May 23	81	45	0.00
May 24	70	44	1.13
May 25	64	37	0.03
May 26	76	37	0.00
May 27	80	48	0.13
May 28	70	50	0.00
May 29	81	50	0.04
May 30	81	54	0.00
May 31	85	52	0.20

June 2020 Boulder Weather

Day	High (°F)	Low (°F)	Precip. (inches)
June 1	89	54	0.00
June 2	87	63	0.03
June 3	89	52	0.00
June 4	89	56	0.01
June 5	93	55	0.00
June 6	85	64	0.09
June 7	87	51	0.00
June 8	87	48	0.00
June 9	75	42	0.28
June 10	76	42	0.00
June 11	82	48	0.00
June 12	90	47	0.00
June 13	86	53	0.01
June 14	90	62	0.00
June 15	90	52	0.00
June 16	92	57	0.00
June 17	91	52	0.00
June 18	82	51	0.17
June 19	66	50	0.79
June 20	85	43	0.00
June 21	78	59	0.27
June 22	79	50	0.00
June 23	83	51	0.00
June 24	89	63	0.00
June 25	88	54	0.05
June 26	81	54	0.33
June 27	89	54	0.05
June 28	87	59	0.01
June 29	91	53	0.00
June 30	89	55	0.01

July 2020 Boulder Weather

Day	High (°F)	Low (°F)	Precip. (inches)
July 1	86	48	0.00
July 2	93	54	0.00
July 3	86	57	0.00
July 4	87	57	0.00
July 5	90	52	0.00
July 6	92	55	0.00
July 7	92	59	0.00
July 8	96	54	0.00
July 9	93	56	0.00
July 10	99	56	0.00
July 11	95	57	0.00
July 12	91	58	0.00
July 13	99	67	0.00
July 14	89	64	0.00
July 15	79	53	0.01
July 16	94	55	0.00
July 17	94	62	0.00
July 18	100	68	0.00
July 19	88	60	0.00
July 20	91	57	0.00
July 21	87	57	0.00
July 22	90	54	0.05
July 23	92	66	0.00
July 24	84	65	0.07
July 25	85	59	0.16
July 26	80	60	0.01
July 27	87	55	0.00
July 28	85	58	0.00
July 29	94	58	0.00
July 30	82	55	0.00
July 31	82	55	0.04

August 2020 Boulder Weather

Day	High (°F)	Low (°F)	Precip. (inches)
August 1	88	59	0.08
August 2	83	56	0.00
August 3	85	53	0.00
August 4	88	56	0.01
August 5	91	58	0.21
August 6	91	57	0.01
August 7	98	53	0.00
August 8	96	64	0.00
August 9	98	63	0.00
August 10	86	56	0.00
August 11	93	56	0.00
August 12	93	53	0.00
August 13	95	56	0.00
August 14	90	59	0.00
August 15	92	52	0.00
August 16	95	57	0.00
August 17	94	57	0.00
August 18	97	60	0.00
August 19	94	60	0.00
August 20	89	56	0.00
August 21	93	58	0.00
August 22	96	57	0.00
August 23	94	57	0.00
August 24	95	64	0.00
August 25	97	63	0.00
August 26	91	62	0.01
August 27	94	57	0.08
August 28	79	61	0.02
August 29	78	51	0.05
August 30	91	57	0.00
August 31	83	43	0.01

September 2020 Boulder Weather

Day	High (°F)	Low (°F)	Precip. (inches)	Snow (inches)
September 1	82	48	0.13	0.0
September 2	91	51	0.00	0.0
September 3	85	51	0.00	0.0
September 4	90	51	0.00	0.0
September 5	99	57	0.00	0.0
September 6	99	64	0.00	0.0
September 7	92	57	0.00	0.0
September 8	75	32	0.85	1.7
September 9	42	30	0.55	4.0
September 10	49	35	0.02	0.0
September 11	69	36	0.00	0.0
September 12	81	44	0.00	0.0
September 13	85	45	0.00	0.0
September 14	87	47	0.00	0.0
September 15	88	52	0.00	0.0
September 16	84	52	0.00	0.0
September 17	85	45	0.00	0.0
September 18	78	47	0.00	0.0
September 19	87	55	0.00	0.0
September 20	82	53	0.00	0.0
September 21	83	49	0.00	0.0
September 22	86	52	0.00	0.0
September 23	85	53	0.00	0.0
September 24	88	52	0.00	0.0
September 25	82	58	0.00	0.0
September 26	88	64	0.00	0.0
September 27	77	46	0.00	0.0
September 28	62	34	0.01	0.0
September 29	81	39	0.00	0.0
September 30	75	48	0.00	0.0

October 2020 Boulder Weather

Day	High (°F)	Low (°F)	Precip. (inches)	Snow (inches)
October 1	67	37	0.00	0.0
October 2	73	41	0.00	0.0
October 3	71	39	0.00	0.0
October 4	81	41	0.00	0.0
October 5	85	50	0.00	0.0
October 6	86	42	0.00	0.0
October 7	82	46	0.00	0.0
October 8	85	42	0.00	0.0
October 9	85	52	0.00	0.0
October 10	81	47	0.00	0.0
October 11	74	50	0.00	0.0
October 12	76	42	0.00	0.0
October 13	74	42	0.00	0.0
October 14	82	53	0.00	0.0
October 15	56	36	0.00	0.0
October 16	68	25	0.00	0.0
October 17	75	n/a	0.00	0.0
October 18	68	33	0.02	0.0
October 19	59	31	0.00	0.0
October 20	68	38	0.00	0.0
October 21	70	34	0.00	0.0
October 22	55	26	0.09	0.0
October 23	30	22	0.00	0.0
October 24	49	23	0.00	0.0
October 25	41	10	0.47	9.9
October 26	18	5	0.19	2.6
October 27	47	4	0.00	0.0
October 28	54	25	0.00	0.0
October 29	65	30	0.00	0.0
October 30	68	33	0.00	0.0
October 31	66	42	0.00	0.0

November 2020 Boulder Weather

Day	High (°F)	Low (°F)	Precip. (inches)	Snow (inches)
November 1	65	29	0.00	0.0
November 2	76	35	0.00	0.0
November 3	77	41	0.00	0.0
November 4	79	45	0.00	0.0
November 5	76	43	0.00	0.0
November 6	70	39	0.00	0.0
November 7	66	44	0.00	0.0
November 8	62	44	0.00	0.0
November 9	47	28	0.31	3.4
November 10	45	19	0.01	0.2
November 11	46	26	0.00	0.0
November 12	48	26	0.00	0.0
November 13	61	18	0.00	0.0
November 14	53	34	0.00	0.0
November 15	54	29	0.00	0.0
November 16	69	40	0.00	0.0
November 17	71	36	0.00	0.0
November 18	76	46	0.00	0.0
November 19	69	37	0.00	0.0
November 20	53	37	0.00	0.0
November 21	48	23	0.00	0.0
November 22	46	18	0.00	0.0
November 23	58	24	0.00	0.0
November 24	43	27	0.47	3.9
November 25	53	20	0.00	0.0
November 26	53	25	0.00	0.0
November 27	44	20	0.00	0.0
November 28	57	23	0.00	0.0
November 29	41	23	0.00	0.0
November 30	62	18	0.00	0.0

December 2020 Boulder Weather

Day	High (°F)	Low (°F)	Precip. (inches)	Snow (inches)
December 1	49	30	0.00	0.0
December 2	35	12	0.00	0.0
December 3	50	16	0.00	0.0
December 4	62	28	0.00	0.0
December 5	54	27	0.00	0.0
December 6	62	27	0.00	0.0
December 7	63	28	0.00	0.0
December 8	62	29	0.00	0.0
December 9	65	30	0.00	0.0
December 10	45	21	0.00	0.0
December 11	37	23	0.27	2.7
December 12	24	13	0.00	0.0
December 13	36	8	0.06	0.9
December 14	37	10	0.00	0.0
December 15	34	19	0.07	1.1
December 16	44	14	0.00	0.0
December 17	51	24	0.00	0.0
December 18	50	28	0.00	0.0
December 19	47	19	0.00	0.0
December 20	52	26	0.00	0.0
December 21	56	40	0.00	0.0
December 22	63	35	0.00	0.0
December 23	47	17	0.02	0.0
December 24	56	17	0.00	0.0
December 25	59	26	0.00	0.0
December 26	63	33	0.00	0.0
December 27	50	34	0.00	0.0
December 28	37	26	0.03	0.5
December 29	36	19	0.07	0.6
December 30	41	13	0.00	0.0
December 31	46	18	0.00	0.0

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Weather Station Details

Years	Station	Coordinates
1893–2024	Boulder	location