Petaluma Weather in 2021

2021 Petaluma Weather Extremes
Highest temperature	99 °F	August 28
Lowest temperature	27 °F	January 26
Highest daily low	61 °F	April 22
Lowest daily high	46 °F	December 28
Most daily precipitation	5.2 inches	October 24
Total annual precipitation	21.9 inches	-

Rank	Temperature	Date
1	99 °F	Aug 28
2	97 °F	Jun 17
3	96 °F	Sep 6
4	95 °F	Jun 18
5	94 °F	Aug 30
5	94 °F	Aug 29
5	94 °F	Aug 27
8	93 °F	Sep 22
8	93 °F	Sep 21
8	93 °F	Jun 19

Rank	Temperature	Date
1	27 °F	January 26
2	31 °F	December 12
2	31 °F	December 11
2	31 °F	January 21
5	32 °F	December 18
5	32 °F	January 25
5	32 °F	January 24
5	32 °F	January 23
9	33 °F	December 10
9	33 °F	March 17
9	33 °F	March 16
9	33 °F	March 2
9	33 °F	February 6
9	33 °F	February 5
9	33 °F	February 4
9	33 °F	January 10
9	33 °F	January 9

January 2021 Petaluma Weather

Day	High (°F)	Low (°F)	Precip. (inches)
January 1	60	34	0.00
January 2	56	45	0.16
January 3	54	44	0.00
January 4	59	45	0.35
January 5	56	38	0.01
January 6	56	37	0.23
January 7	58	46	0.02
January 8	59	46	0.15
January 9	59	33	0.00
January 10	59	33	0.00
January 11	60	34	0.00
January 12	59	44	0.00
January 13	64	44	0.00
January 14	67	47	0.00
January 15	68	41	0.00
January 16	69	43	0.00
January 17	72	39	0.00
January 18	80	40	0.00
January 19	78	54	0.00
January 20	78	35	0.00
January 21	65	31	0.00
January 22	54	43	0.13
January 23	56	32	0.04
January 24	56	32	0.09
January 25	57	32	0.17
January 26	52	27	0.01
January 27	55	43	1.85
January 28	55	45	0.45
January 29	55	41	0.00
January 30	57	40	0.00
January 31	61	40	0.00

February 2021 Petaluma Weather

Day	High (°F)	Low (°F)	Precip. (inches)
February 1	62	41	0.02
February 2	60	52	0.24
February 3	57	34	0.02
February 4	61	33	0.00
February 5	65	33	0.00
February 6	68	33	0.00
February 7	65	35	0.00
February 8	66	35	0.00
February 9	61	48	0.00
February 10	61	40	0.00
February 11	60	47	0.09
February 12	60	43	0.28
February 13	61	43	0.10
February 14	58	41	0.00
February 15	61	43	0.15
February 16	58	39	0.00
February 17	66	35	0.00
February 18	63	35	0.00
February 19	62	34	0.00
February 20	61	37	0.00
February 21	64	37	0.00
February 22	70	38	0.00
February 23	80	44	0.00
February 24	80	38	0.00
February 25	80	35	0.00
February 26	65	45	0.00
February 27	62	38	0.00
February 28	n/a	n/a	n/a

March 2021 Petaluma Weather

Day	High (°F)	Low (°F)	Precip. (inches)
March 1	70	35	0.00
March 2	65	33	0.00
March 3	66	37	0.00
March 4	64	45	0.00
March 5	65	35	0.00
March 6	60	39	0.24
March 7	59	35	0.00
March 8	58	41	0.01
March 9	58	37	0.27
March 10	53	40	0.41
March 11	57	38	0.01
March 12	70	38	0.00
March 13	63	43	0.00
March 14	54	41	0.01
March 15	56	37	0.14
March 16	58	33	0.00
March 17	58	33	0.00
March 18	55	47	0.59
March 19	60	45	0.05
March 20	58	37	0.00
March 21	62	37	0.00
March 22	66	38	0.00
March 23	68	43	0.00
March 24	68	43	0.00
March 25	64	44	0.00
March 26	70	40	0.00
March 27	74	38	0.00
March 28	72	38	0.00
March 29	70	38	0.00
March 30	81	36	0.00
March 31	81	36	0.00

April 2021 Petaluma Weather

Day	High (°F)	Low (°F)	Precip. (inches)
April 1	82	41	0.00
April 2	78	45	0.00
April 3	62	44	0.00
April 4	61	47	0.00
April 5	61	43	0.00
April 6	66	44	0.00
April 7	59	45	0.00
April 8	66	36	0.00
April 9	64	40	0.00
April 10	71	37	0.00
April 11	71	37	0.00
April 12	72	38	0.00
April 13	68	41	0.00
April 14	68	41	0.00
April 15	65	44	0.00
April 16	65	44	0.00
April 17	70	47	0.00
April 18	82	39	0.00
April 19	82	40	0.00
April 20	67	43	0.00
April 21	72	42	0.00
April 22	69	61	0.00
April 23	66	50	0.00
April 24	66	50	0.00
April 25	69	48	0.00
April 26	69	39	0.05
April 27	72	39	0.00
April 28	81	41	0.00
April 29	76	44	0.00
April 30	76	42	0.00

May 2021 Petaluma Weather

Day	High (°F)	Low (°F)	Precip. (inches)
May 1	73	47	0.00
May 2	75	48	0.00
May 3	83	47	0.00
May 4	82	52	0.00
May 5	83	48	0.00
May 6	70	47	0.00
May 7	73	45	0.00
May 8	88	44	0.00
May 9	84	53	0.00
May 10	87	50	0.00
May 11	84	46	0.00
May 12	84	46	0.00
May 13	68	47	0.00
May 14	70	48	0.00
May 15	69	49	0.00
May 16	68	50	0.00
May 17	64	48	0.00
May 18	71	46	0.00
May 19	70	46	0.00
May 20	66	49	0.00
May 21	69	45	0.00
May 22	73	43	0.00
May 23	69	47	0.00
May 24	73	48	0.00
May 25	71	51	0.00
May 26	72	46	0.00
May 27	74	48	0.00
May 28	79	51	0.00
May 29	72	48	0.00
May 30	82	48	0.00
May 31	88	51	0.00

June 2021 Petaluma Weather

Day	High (°F)	Low (°F)	Precip. (inches)
June 1	84	50	0.00
June 2	75	50	0.00
June 3	85	52	0.00
June 4	85	51	0.00
June 5	84	47	0.00
June 6	82	49	0.00
June 7	72	46	0.00
June 8	65	50	0.00
June 9	64	44	0.00
June 10	69	46	0.00
June 11	72	47	0.00
June 12	79	51	0.00
June 13	76	58	0.00
June 14	76	59	0.00
June 15	79	47	0.00
June 16	90	54	0.00
June 17	97	54	0.00
June 18	95	55	0.00
June 19	93	53	0.00
June 20	88	52	0.00
June 21	74	52	0.00
June 22	73	59	0.00
June 23	74	56	0.00
June 24	73	54	0.00
June 25	76	53	0.00
June 26	76	53	0.00
June 27	71	53	0.00
June 28	71	53	0.00
June 29	82	54	0.00
June 30	82	54	0.00

July 2021 Petaluma Weather

Day	High (°F)	Low (°F)	Precip. (inches)
July 1	79	56	0.00
July 2	75	54	0.00
July 3	74	54	0.00
July 4	79	55	0.00
July 5	76	54	0.00
July 6	72	53	0.00
July 7	77	52	0.00
July 8	89	49	0.00
July 9	89	56	0.00
July 10	92	52	0.00
July 11	81	51	0.00
July 12	78	53	0.00
July 13	77	53	0.00
July 14	75	53	0.00
July 15	75	52	0.00
July 16	78	53	0.00
July 17	80	51	0.00
July 18	82	51	0.00
July 19	84	51	0.00
July 20	78	51	0.00
July 21	83	51	0.00
July 22	82	49	0.00
July 23	81	50	0.00
July 24	82	52	0.00
July 25	78	52	0.00
July 26	78	54	0.00
July 27	89	54	0.00
July 28	89	54	0.00
July 29	83	55	0.00
July 30	82	53	0.00
July 31	83	53	0.00

August 2021 Petaluma Weather

Day	High (°F)	Low (°F)	Precip. (inches)
August 1	78	56	0.00
August 2	80	55	0.00
August 3	82	53	0.00
August 4	82	53	0.00
August 5	72	54	0.00
August 6	86	52	0.00
August 7	86	52	0.00
August 8	81	54	0.00
August 9	85	52	0.00
August 10	88	56	0.00
August 11	82	55	0.00
August 12	75	55	0.00
August 13	70	55	0.00
August 14	80	55	0.00
August 15	82	56	0.00
August 16	87	55	0.00
August 17	85	56	0.00
August 18	85	53	0.00
August 19	80	55	0.00
August 20	74	56	0.00
August 21	70	54	0.00
August 22	75	55	0.00
August 23	75	56	0.00
August 24	76	55	0.00
August 25	74	54	0.00
August 26	85	50	0.00
August 27	94	53	0.00
August 28	99	55	0.00
August 29	94	57	0.00
August 30	94	53	0.00
August 31	82	49	0.00

September 2021 Petaluma Weather

Day	High (°F)	Low (°F)	Precip. (inches)
September 1	82	49	0.00
September 2	82	49	0.00
September 3	77	52	0.00
September 4	85	52	0.00
September 5	90	52	0.00
September 6	96	51	0.00
September 7	88	56	0.00
September 8	90	60	0.00
September 9	85	54	0.00
September 10	75	57	0.00
September 11	84	50	0.00
September 12	85	51	0.00
September 13	90	50	0.00
September 14	88	50	0.00
September 15	74	55	0.00
September 16	69	55	0.00
September 17	77	53	0.00
September 18	67	55	0.04
September 19	76	53	0.04
September 20	87	51	0.00
September 21	93	51	0.00
September 22	93	54	0.00
September 23	84	52	0.00
September 24	83	52	0.00
September 25	75	56	0.00
September 26	75	56	0.00
September 27	75	56	0.01
September 28	78	52	0.00
September 29	78	47	0.00
September 30	88	47	0.00

October 2021 Petaluma Weather

Day	High (°F)	Low (°F)	Precip. (inches)
October 1	88	46	0.00
October 2	90	50	0.00
October 3	90	50	0.00
October 4	91	47	0.00
October 5	85	51	0.00
October 6	69	55	0.00
October 7	66	47	0.00
October 8	66	45	0.00
October 9	73	45	0.00
October 10	77	43	0.00
October 11	77	47	0.00
October 12	71	47	0.00
October 13	68	44	0.00
October 14	77	42	0.00
October 15	80	41	0.00
October 16	84	42	0.00
October 17	83	45	0.00
October 18	64	42	0.13
October 19	65	42	0.00
October 20	64	52	0.10
October 21	66	58	0.43
October 22	65	54	0.73
October 23	63	53	0.03
October 24	63	56	5.17
October 25	62	53	1.37
October 26	62	51	0.00
October 27	71	56	0.00
October 28	76	51	0.00
October 29	77	51	0.00
October 30	n/a	n/a	n/a
October 31	n/a	n/a	n/a

November 2021 Petaluma Weather

Day	High (°F)	Low (°F)	Precip. (inches)
November 1	64	55	0.24
November 2	66	52	0.00
November 3	71	47	0.01
November 4	71	58	0.20
November 5	65	44	0.01
November 6	65	44	0.00
November 7	65	40	0.00
November 8	62	38	0.00
November 9	61	49	1.10
November 10	66	49	0.02
November 11	72	46	0.00
November 12	71	49	0.00
November 13	71	47	0.00
November 14	71	47	0.00
November 15	71	49	0.00
November 16	63	53	0.00
November 17	63	44	0.00
November 18	62	43	0.00
November 19	61	42	0.03
November 20	68	40	0.00
November 21	65	37	0.00
November 22	66	36	0.00
November 23	65	40	0.00
November 24	66	34	0.00
November 25	63	34	0.00
November 26	64	34	0.00
November 27	68	41	0.00
November 28	67	43	0.00
November 29	69	43	0.00
November 30	70	41	0.00

December 2021 Petaluma Weather

Day	High (°F)	Low (°F)	Precip. (inches)
December 1	70	39	0.00
December 2	66	39	0.00
December 3	62	48	0.01
December 4	54	50	0.00
December 5	55	44	0.00
December 6	53	39	0.00
December 7	59	46	0.02
December 8	59	47	0.03
December 9	57	46	0.00
December 10	56	33	0.00
December 11	55	31	0.00
December 12	55	31	0.64
December 13	58	50	1.47
December 14	52	37	0.48
December 15	52	36	0.04
December 16	56	42	0.69
December 17	54	35	0.01
December 18	53	32	0.00
December 19	47	37	0.00
December 20	50	37	0.01
December 21	49	41	0.20
December 22	49	41	0.44
December 23	59	47	0.54
December 24	55	45	0.20
December 25	53	45	0.26
December 26	54	34	0.41
December 27	51	44	0.30
December 28	46	38	0.02
December 29	48	42	0.14
December 30	52	37	0.00
December 31	n/a	n/a	n/a