Boulder Weather in 2009

Historical record of Boulder, Colorado weather for the year 2009 based on NOAA data.

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2009 Boulder Weather Extremes
Highest temperature	96 °F	August 12
Lowest temperature	-12 °F	December 9
Highest daily low	62 °F	August 14
Lowest daily high	7 °F	December 8
Most daily precipitation	2.6 inches	April 17
Most daily snow	16.7 inches	October 28
Total annual precipitation	19.1 inches	-
Total annual snow	125.5 inches	-

What was the hottest temperature in Boulder in 2009?

The highest temperature recorded in Boulder, Colorado in 2009 was 96 °F which happened on August 12.

Highest Temperatures: All-Time By Year

Highest Temperatures in Boulder in 2009

Rank	Temperature	Date
1	96 °F	Aug 12
2	95 °F	Jul 24
3	94 °F	Aug 22
3	94 °F	Aug 3
5	93 °F	Jul 14
6	92 °F	Aug 23
6	92 °F	Aug 7
6	92 °F	Aug 2
6	92 °F	Jul 19
10	91 °F	Aug 13
10	91 °F	Jul 8

What was the coldest temperature in Boulder in 2009?

The lowest temperature recorded in Boulder, Colorado in 2009 was -12 °F which happened on Dec 9.

Lowest Temperatures: All-Time By Year

Lowest Temperatures in Boulder in 2009

Rank	Temperature	Date
1	-12 °F	December 9
2	-6 °F	January 27
3	-2 °F	December 10
4	-1 °F	December 4
5	0 °F	December 24
5	0 °F	December 3
7	2 °F	December 8
7	2 °F	December 7
9	5 °F	December 11
9	5 °F	December 2
9	5 °F	January 26

January 2009 Boulder Weather

Day	High (°F)	Low (°F)	Precip. (inches)	Snow (inches)
January 1	55	45	0.00	0.0
January 2	63	47	0.00	0.0
January 3	49	23	0.01	0.1
January 4	24	13	0.03	2.4
January 5	43	7	0.00	0.0
January 6	43	22	0.00	0.0
January 7	53	30	0.00	0.0
January 8	61	38	0.00	0.0
January 9	55	36	0.00	0.0
January 10	42	21	0.00	0.0
January 11	47	27	0.00	0.0
January 12	43	23	0.40	6.0
January 13	49	15	0.00	0.0
January 14	46	33	0.00	0.0
January 15	46	26	0.00	0.0
January 16	62	27	0.00	0.0
January 17	59	32	0.00	0.0
January 18	65	29	0.00	0.0
January 19	69	38	0.00	0.0
January 20	71	34	0.00	0.0
January 21	70	40	0.00	0.0
January 22	65	49	0.00	0.0
January 23	56	21	0.01	0.1
January 24	45	18	0.00	0.0
January 25	33	12	0.08	2.8
January 26	15	5	0.08	1.4
January 27	29	-6	0.01	0.2
January 28	40	24	0.00	0.0
January 29	40	21	0.00	0.0
January 30	56	24	0.00	0.0
January 31	64	34	0.00	0.0

February 2009 Boulder Weather

Day	High (°F)	Low (°F)	Precip. (inches)	Snow (inches)
February 1	51	31	0.00	0.0
February 2	51	28	0.00	0.0
February 3	59	32	0.00	0.0
February 4	67	28	0.00	0.0
February 5	69	33	0.00	0.0
February 6	59	35	0.00	0.0
February 7	52	37	0.00	0.0
February 8	46	25	0.00	0.0
February 9	49	30	0.00	0.0
February 10	45	29	0.00	0.0
February 11	44	17	0.17	2.3
February 12	41	17	0.00	0.0
February 13	35	25	0.00	0.0
February 14	30	20	0.08	0.8
February 15	48	16	0.00	0.0
February 16	61	18	0.00	0.0
February 17	54	35	0.00	0.0
February 18	50	30	0.00	0.0
February 19	50	24	0.00	0.0
February 20	54	29	0.00	0.0
February 21	49	11	0.02	0.8
February 22	56	25	0.00	0.0
February 23	64	31	0.00	0.0
February 24	69	37	0.00	0.0
February 25	64	35	0.00	0.0
February 26	60	40	0.00	0.0
February 27	44	21	0.00	0.0
February 28	46	15	0.00	0.0

March 2009 Boulder Weather

Day	High (°F)	Low (°F)	Precip. (inches)	Snow (inches)
March 1	68	23	0.00	0.0
March 2	72	37	0.00	0.0
March 3	71	55	0.00	0.0
March 4	74	50	0.00	0.0
March 5	66	39	0.00	0.0
March 6	53	28	0.00	0.0
March 7	49	26	0.00	0.0
March 8	64	28	0.00	0.0
March 9	57	28	0.00	0.0
March 10	40	14	0.06	1.0
March 11	42	12	0.00	0.0
March 12	48	15	0.00	0.0
March 13	50	20	0.00	0.0
March 14	62	22	0.00	0.0
March 15	63	32	0.00	0.0
March 16	70	41	0.00	0.0
March 17	73	43	0.00	0.0
March 18	68	38	0.00	0.0
March 19	66	30	0.00	0.0
March 20	65	42	0.00	0.0
March 21	73	34	0.00	0.0
March 22	76	41	0.00	0.0
March 23	71	36	0.17	0.0
March 24	52	32	0.00	0.0
March 25	50	27	0.00	0.0
March 26	41	17	1.32	16.2
March 27	33	13	0.34	4.2
March 28	46	13	0.00	0.0
March 29	62	23	0.00	0.0
March 30	60	28	0.00	0.0
March 31	46	23	0.00	0.0

April 2009 Boulder Weather

Day	High (°F)	Low (°F)	Precip. (inches)	Snow (inches)
April 1	44	27	0.25	3.9
April 2	55	16	0.01	0.2
April 3	59	32	0.04	0.0
April 4	54	28	0.63	2.8
April 5	36	15	0.14	2.5
April 6	52	18	0.01	0.3
April 7	68	29	0.00	0.0
April 8	69	33	0.00	0.0
April 9	63	35	0.00	0.0
April 10	58	32	0.00	0.0
April 11	58	32	0.00	0.0
April 12	54	37	0.08	0.0
April 13	65	32	0.01	0.0
April 14	67	43	0.00	0.0
April 15	70	38	0.00	0.0
April 16	62	37	0.38	0.0
April 17	39	32	2.59	5.2
April 18	42	32	1.14	1.8
April 19	58	32	0.02	0.0
April 20	73	40	0.00	0.0
April 21	75	42	0.00	0.0
April 22	77	42	0.00	0.0
April 23	80	46	0.00	0.0
April 24	76	52	0.00	0.0
April 25	61	37	0.01	0.0
April 26	58	32	0.01	0.0
April 27	45	32	0.56	3.7
April 28	60	37	0.00	0.0
April 29	72	41	0.00	0.0
April 30	70	37	0.00	0.0

May 2009 Boulder Weather

Day	High (°F)	Low (°F)	Precip. (inches)	Snow (inches)
May 1	n/a	n/a	n/a	n/a
May 2	n/a	n/a	n/a	n/a
May 3	n/a	n/a	n/a	n/a
May 4	n/a	n/a	n/a	n/a
May 5	n/a	n/a	n/a	n/a
May 6	n/a	n/a	n/a	n/a
May 7	n/a	n/a	n/a	n/a
May 8	n/a	n/a	n/a	n/a
May 9	n/a	n/a	n/a	n/a
May 10	n/a	n/a	n/a	n/a
May 11	n/a	n/a	n/a	n/a
May 12	n/a	n/a	n/a	n/a
May 13	n/a	n/a	n/a	n/a
May 14	n/a	n/a	n/a	n/a
May 15	n/a	n/a	n/a	n/a
May 16	n/a	n/a	n/a	n/a
May 17	n/a	n/a	n/a	n/a
May 18	n/a	n/a	n/a	n/a
May 19	n/a	n/a	n/a	n/a
May 20	n/a	n/a	n/a	n/a
May 21	n/a	n/a	n/a	n/a
May 22	n/a	n/a	n/a	n/a
May 23	n/a	n/a	n/a	n/a
May 24	n/a	n/a	n/a	n/a
May 25	n/a	n/a	n/a	n/a
May 26	n/a	n/a	n/a	n/a
May 27	n/a	n/a	n/a	n/a
May 28	n/a	n/a	n/a	n/a
May 29	n/a	n/a	n/a	n/a
May 30	n/a	n/a	n/a	n/a
May 31	n/a	n/a	n/a	n/a

June 2009 Boulder Weather

Day	High (°F)	Low (°F)	Precip. (inches)
June 1	73	54	0.01
June 2	69	46	0.95
June 3	62	45	0.10
June 4	68	46	0.00
June 5	74	49	0.00
June 6	78	47	0.02
June 7	78	47	0.03
June 8	60	41	0.01
June 9	72	47	0.21
June 10	70	46	0.24
June 11	70	48	0.02
June 12	70	43	0.12
June 13	71	50	0.18
June 14	76	47	0.03
June 15	68	47	0.29
June 16	79	46	0.00
June 17	78	50	0.00
June 18	80	51	0.01
June 19	76	50	0.13
June 20	76	55	0.10
June 21	80	50	0.02
June 22	85	50	0.00
June 23	85	53	0.02
June 24	85	52	0.04
June 25	81	57	0.00
June 26	81	56	0.17
June 27	84	54	0.00
June 28	83	52	0.00
June 29	88	54	0.00
June 30	89	54	0.00

July 2009 Boulder Weather

Day	High (°F)	Low (°F)	Precip. (inches)
July 1	89	54	0.00
July 2	86	53	0.30
July 3	85	60	0.01
July 4	76	57	0.05
July 5	76	51	0.02
July 6	84	51	0.00
July 7	88	50	0.00
July 8	91	54	0.00
July 9	89	57	0.00
July 10	87	56	0.00
July 11	89	57	0.00
July 12	88	58	0.03
July 13	85	56	0.04
July 14	93	60	0.00
July 15	90	51	0.00
July 16	87	56	0.00
July 17	89	53	0.00
July 18	84	55	0.00
July 19	92	55	0.00
July 20	88	58	0.11
July 21	84	54	0.07
July 22	86	55	0.00
July 23	90	54	0.00
July 24	95	57	0.00
July 25	88	59	0.03
July 26	81	57	0.00
July 27	83	54	0.11
July 28	70	52	0.10
July 29	68	53	0.03
July 30	57	49	0.52
July 31	80	47	0.00

August 2009 Boulder Weather

Day	High (°F)	Low (°F)	Precip. (inches)
August 1	80	49	0.04
August 2	92	54	0.00
August 3	94	60	0.00
August 4	89	56	0.00
August 5	87	59	0.00
August 6	87	62	0.03
August 7	92	55	0.00
August 8	83	56	0.00
August 9	84	58	0.00
August 10	84	54	0.00
August 11	89	52	0.00
August 12	96	56	0.00
August 13	91	54	0.00
August 14	81	62	0.00
August 15	79	55	0.00
August 16	79	47	0.00
August 17	75	46	0.11
August 18	76	49	0.00
August 19	84	58	0.00
August 20	82	48	0.00
August 21	86	49	0.00
August 22	94	53	0.00
August 23	92	61	0.00
August 24	86	59	0.15
August 25	76	55	0.00
August 26	82	51	0.00
August 27	88	53	0.00
August 28	84	54	0.00
August 29	81	50	0.00
August 30	71	56	0.00
August 31	83	50	0.00

September 2009 Boulder Weather

Day	High (°F)	Low (°F)	Precip. (inches)
September 1	89	55	0.00
September 2	86	55	0.00
September 3	86	54	0.00
September 4	86	49	0.00
September 5	85	49	0.00
September 6	80	51	0.01
September 7	89	54	0.00
September 8	87	53	0.00
September 9	81	50	0.00
September 10	87	52	0.00
September 11	77	54	0.00
September 12	69	48	0.05
September 13	73	41	0.06
September 14	82	50	0.00
September 15	83	53	0.00
September 16	79	54	0.00
September 17	77	50	0.00
September 18	78	44	0.00
September 19	79	43	0.00
September 20	81	50	0.00
September 21	67	40	0.22
September 22	52	38	0.00
September 23	52	43	0.03
September 24	65	38	0.00
September 25	65	43	0.05
September 26	86	43	0.00
September 27	84	57	0.00
September 28	74	36	0.00
September 29	87	41	0.00
September 30	82	50	0.00

October 2009 Boulder Weather

Day	High (°F)	Low (°F)	Precip. (inches)	Snow (inches)
October 1	63	38	0.00	0.0
October 2	64	29	0.00	0.0
October 3	62	30	0.00	0.0
October 4	54	37	0.01	0.0
October 5	53	39	0.25	0.0
October 6	64	28	0.00	0.0
October 7	63	34	0.00	0.0
October 8	54	32	0.22	0.0
October 9	51	31	0.01	0.0
October 10	43	15	0.25	4.8
October 11	29	23	0.00	0.0
October 12	46	23	0.00	0.0
October 13	51	33	0.00	0.0
October 14	69	32	0.00	0.0
October 15	68	43	0.00	0.0
October 16	65	34	0.00	0.0
October 17	69	32	0.00	0.0
October 18	83	42	0.00	0.0
October 19	74	50	0.00	0.0
October 20	62	37	0.00	0.0
October 21	45	32	0.39	0.1
October 22	52	31	0.00	0.0
October 23	56	29	0.00	0.0
October 24	64	40	0.00	0.0
October 25	51	31	0.15	1.5
October 26	58	19	0.12	0.7
October 27	63	37	0.01	0.0
October 28	44	27	1.57	16.7
October 29	33	23	0.28	6.3
October 30	55	19	0.00	0.0
October 31	61	38	0.00	0.0

November 2009 Boulder Weather

Day	High (°F)	Low (°F)	Precip. (inches)	Snow (inches)
November 1	66	40	0.00	0.0
November 2	49	33	0.00	0.0
November 3	70	28	0.00	0.0
November 4	58	30	0.00	0.0
November 5	77	36	0.00	0.0
November 6	74	54	0.00	0.0
November 7	66	40	0.00	0.0
November 8	61	41	0.00	0.0
November 9	56	35	0.00	0.0
November 10	62	32	0.00	0.0
November 11	67	34	0.00	0.0
November 12	72	42	0.00	0.0
November 13	62	33	0.07	0.3
November 14	37	31	0.04	0.3
November 15	32	26	0.82	8.3
November 16	39	12	0.00	0.0
November 17	54	23	0.00	0.0
November 18	58	29	0.00	0.0
November 19	48	29	0.00	0.0
November 20	55	25	0.00	0.0
November 21	63	29	0.00	0.0
November 22	47	26	0.00	0.0
November 23	43	27	0.00	0.0
November 24	46	17	0.00	0.0
November 25	48	28	0.00	0.0
November 26	68	27	0.00	0.0
November 27	69	30	0.00	0.0
November 28	56	34	0.00	0.0
November 29	44	26	0.00	0.0
November 30	57	25	0.00	0.0

December 2009 Boulder Weather

Day	High (°F)	Low (°F)	Precip. (inches)	Snow (inches)
December 1	50	28	0.00	0.0
December 2	28	5	0.33	6.9
December 3	17	0	0.01	0.2
December 4	35	-1	0.00	0.0
December 5	38	15	0.00	0.0
December 6	25	11	0.24	5.8
December 7	11	2	0.08	1.9
December 8	7	2	0.06	1.4
December 9	16	-12	0.00	0.1
December 10	27	-2	0.00	0.0
December 11	46	5	0.00	0.0
December 12	50	20	0.00	0.0
December 13	51	32	0.01	0.0
December 14	44	31	0.00	0.0
December 15	52	19	0.00	0.0
December 16	54	42	0.00	0.0
December 17	53	32	0.00	0.0
December 18	44	26	0.00	0.0
December 19	45	18	0.00	0.0
December 20	54	28	0.00	0.0
December 21	57	27	0.00	0.0
December 22	51	32	0.00	0.0
December 23	36	22	0.45	5.9
December 24	27	0	0.16	4.9
December 25	30	6	0.00	0.0
December 26	39	17	0.05	0.7
December 27	35	15	0.00	0.0
December 28	37	11	0.00	0.0
December 29	40	16	0.00	0.0
December 30	36	19	0.00	0.0
December 31	38	14	0.00	0.0

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Weather Station Details

Years	Station	Coordinates
1893–2024	Boulder	location