El Cajon Weather in 2021

Historical record of El Cajon, California weather for the year 2021 based on NOAA data.

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2021 El Cajon Weather Extremes
Highest temperature	101 °F	September 21
Lowest temperature	35 °F	December 20
Highest daily low	72 °F	August 12
Lowest daily high	53 °F	January 25
Most daily precipitation	1.5 inches	December 24
Total annual precipitation	10.9 inches	-

What was the hottest temperature in El Cajon in 2021?

The highest temperature recorded in El Cajon, California in 2021 was 101 °F which happened 2 different times.

Highest Temperatures: All-Time By Year

Highest Temperatures in El Cajon in 2021

Rank	Temperature	Date
1	101 °F	Sep 21
1	101 °F	Jun 15
3	100 °F	Sep 22
3	100 °F	Sep 4
3	100 °F	Aug 2
6	99 °F	Aug 26
7	98 °F	Sep 12
7	98 °F	Sep 11
7	98 °F	Aug 27
10	97 °F	Oct 2
10	97 °F	Sep 10
10	97 °F	Aug 1

What was the coldest temperature in El Cajon in 2021?

The lowest temperature recorded in El Cajon, California in 2021 was 35 °F which happened 2 different times.

Lowest Temperatures: All-Time By Year

Lowest Temperatures in El Cajon in 2021

Rank	Temperature	Date
1	35 °F	December 20
1	35 °F	January 27
3	36 °F	December 19
3	36 °F	March 2
3	36 °F	March 1
3	36 °F	January 10
7	37 °F	December 16
7	37 °F	January 30
7	37 °F	January 12
7	37 °F	January 9

January 2021 El Cajon Weather

Day	High (°F)	Low (°F)	Precip. (inches)
January 1	71	38	0.00
January 2	68	40	0.00
January 3	68	39	0.00
January 4	70	40	0.00
January 5	67	40	0.00
January 6	71	41	0.00
January 7	77	40	0.00
January 8	76	40	0.00
January 9	74	37	0.00
January 10	75	36	0.00
January 11	75	38	0.00
January 12	75	37	0.00
January 13	78	39	0.00
January 14	89	43	0.00
January 15	93	48	0.00
January 16	84	44	0.00
January 17	87	45	0.00
January 18	78	44	0.00
January 19	68	48	0.00
January 20	69	57	0.00
January 21	70	50	0.11
January 22	63	45	0.00
January 23	56	43	0.58
January 24	58	42	0.04
January 25	53	47	0.55
January 26	57	40	0.07
January 27	64	35	0.00
January 28	65	40	0.00
January 29	58	48	1.16
January 30	65	37	0.10
January 31	71	38	0.00

February 2021 El Cajon Weather

Day	High (°F)	Low (°F)	Precip. (inches)
February 1	70	53	0.00
February 2	75	55	0.00
February 3	70	46	0.00
February 4	65	50	0.00
February 5	71	41	0.00
February 6	80	41	0.00
February 7	75	41	0.00
February 8	67	42	0.00
February 9	63	49	0.00
February 10	64	49	0.00
February 11	74	43	0.00
February 12	63	55	0.05
February 13	62	46	0.00
February 14	67	48	0.00
February 15	63	43	0.00
February 16	64	53	0.12
February 17	66	45	0.00
February 18	71	38	0.00
February 19	73	38	0.00
February 20	67	40	0.00
February 21	76	38	0.00
February 22	85	38	0.00
February 23	79	41	0.00
February 24	75	41	0.00
February 25	76	40	0.00
February 26	77	40	0.00
February 27	69	38	0.00
February 28	76	40	0.00

March 2021 El Cajon Weather

Day	High (°F)	Low (°F)	Precip. (inches)
March 1	79	36	0.00
March 2	75	36	0.00
March 3	59	40	0.39
March 4	68	47	0.25
March 5	80	42	0.00
March 6	71	48	0.00
March 7	66	50	0.00
March 8	64	54	0.00
March 9	62	45	0.01
March 10	60	48	0.34
March 11	58	46	0.43
March 12	59	41	0.07
March 13	62	44	0.04
March 14	64	49	0.00
March 15	56	47	0.22
March 16	60	41	0.07
March 17	68	38	0.00
March 18	69	43	0.00
March 19	77	44	0.00
March 20	68	52	0.00
March 21	64	43	0.00
March 22	69	42	0.00
March 23	63	52	0.03
March 24	70	42	0.00
March 25	59	45	0.00
March 26	64	48	0.31
March 27	78	42	0.00
March 28	89	44	0.00
March 29	84	47	0.00
March 30	75	49	0.00
March 31	90	45	0.00

April 2021 El Cajon Weather

Day	High (°F)	Low (°F)	Precip. (inches)
April 1	90	49	0.00
April 2	77	50	0.00
April 3	81	50	0.00
April 4	86	48	0.00
April 5	73	50	0.00
April 6	75	52	0.00
April 7	84	50	0.00
April 8	75	51	0.00
April 9	77	52	0.00
April 10	77	52	0.00
April 11	74	54	0.00
April 12	71	57	0.00
April 13	60	55	0.00
April 14	64	52	0.00
April 15	68	46	0.00
April 16	74	50	0.00
April 17	75	56	0.00
April 18	87	52	0.00
April 19	88	49	0.00
April 20	70	53	0.00
April 21	61	56	0.00
April 22	59	53	0.04
April 23	63	56	0.00
April 24	71	54	0.00
April 25	70	55	0.00
April 26	62	55	0.16
April 27	64	51	0.02
April 28	79	46	0.00
April 29	93	51	0.00
April 30	96	57	0.00

May 2021 El Cajon Weather

Day	High (°F)	Low (°F)	Precip. (inches)
May 1	79	56	0.00
May 2	64	57	0.01
May 3	79	57	0.00
May 4	83	54	0.00
May 5	84	55	0.00
May 6	74	58	0.00
May 7	73	58	0.00
May 8	72	58	0.00
May 9	75	58	0.00
May 10	70	58	0.00
May 11	75	56	0.00
May 12	77	57	0.00
May 13	78	60	0.00
May 14	76	58	0.00
May 15	70	59	0.00
May 16	64	57	0.00
May 17	67	56	0.01
May 18	74	57	0.02
May 19	75	59	0.00
May 20	68	57	0.00
May 21	66	55	0.00
May 22	68	51	0.00
May 23	78	48	0.00
May 24	89	52	0.00
May 25	86	56	0.00
May 26	75	62	0.00
May 27	74	56	0.00
May 28	76	57	0.00
May 29	70	59	0.00
May 30	73	58	0.00
May 31	77	58	0.00

June 2021 El Cajon Weather

Day	High (°F)	Low (°F)
June 1	79	58
June 2	83	57
June 3	75	60
June 4	80	56
June 5	81	59
June 6	74	59
June 7	66	60
June 8	77	59
June 9	78	59
June 10	79	52
June 11	83	54
June 12	86	56
June 13	89	58
June 14	90	59
June 15	101	64
June 16	86	66
June 17	85	63
June 18	82	64
June 19	86	63
June 20	83	62
June 21	85	60
June 22	81	63
June 23	82	65
June 24	82	65
June 25	84	61
June 26	84	63
June 27	83	61
June 28	81	62
June 29	77	64
June 30	85	65

July 2021 El Cajon Weather

Day	High (°F)	Low (°F)	Precip. (inches)
July 1	90	64	0.00
July 2	84	63	0.00
July 3	86	65	0.00
July 4	85	64	0.00
July 5	88	64	0.00
July 6	86	63	0.00
July 7	83	62	0.00
July 8	87	63	0.00
July 9	89	66	0.00
July 10	91	68	0.00
July 11	84	66	0.00
July 12	84	65	0.00
July 13	88	66	0.00
July 14	87	67	0.00
July 15	89	65	0.00
July 16	89	65	0.00
July 17	86	65	0.00
July 18	91	69	0.10
July 19	92	69	0.00
July 20	93	67	0.00
July 21	91	69	0.00
July 22	83	69	0.00
July 23	85	66	0.00
July 24	82	66	0.00
July 25	80	67	0.00
July 26	79	68	0.02
July 27	89	68	0.00
July 28	92	67	0.00
July 29	92	67	0.00
July 30	90	66	0.00
July 31	90	67	0.00

August 2021 El Cajon Weather

Day	High (°F)	Low (°F)
August 1	97	64
August 2	100	65
August 3	95	66
August 4	90	66
August 5	90	65
August 6	83	64
August 7	83	63
August 8	86	61
August 9	90	63
August 10	95	66
August 11	95	72
August 12	96	72
August 13	91	70
August 14	91	70
August 15	89	68
August 16	88	68
August 17	83	69
August 18	80	70
August 19	82	69
August 20	79	68
August 21	78	64
August 22	79	67
August 23	84	67
August 24	87	60
August 25	94	64
August 26	99	68
August 27	98	66
August 28	90	65
August 29	90	68
August 30	87	68
August 31	78	68

September 2021 El Cajon Weather

Day	High (°F)	Low (°F)	Precip. (inches)
September 1	80	67	0.00
September 2	81	68	0.00
September 3	85	63	0.00
September 4	100	62	0.00
September 5	93	68	0.00
September 6	86	66	0.00
September 7	90	68	0.00
September 8	95	67	0.00
September 9	94	70	0.00
September 10	97	70	0.00
September 11	98	70	0.00
September 12	98	69	0.00
September 13	94	65	0.00
September 14	86	64	0.00
September 15	83	61	0.00
September 16	81	62	0.00
September 17	81	62	0.00
September 18	84	61	0.00
September 19	82	59	0.00
September 20	85	58	0.00
September 21	101	62	0.00
September 22	100	68	0.00
September 23	91	68	0.00
September 24	85	64	0.09
September 25	81	65	0.04
September 26	71	64	0.00
September 27	69	62	0.00
September 28	76	62	0.00
September 29	77	60	0.00
September 30	90	57	0.00

October 2021 El Cajon Weather

Day	High (°F)	Low (°F)	Precip. (inches)
October 1	95	53	0.00
October 2	97	55	0.00
October 3	95	58	0.00
October 4	88	64	0.04
October 5	78	63	0.71
October 6	73	65	0.00
October 7	73	64	0.00
October 8	70	60	0.15
October 9	75	57	0.00
October 10	84	53	0.00
October 11	69	52	0.00
October 12	70	52	0.00
October 13	77	44	0.00
October 14	81	46	0.00
October 15	89	48	0.00
October 16	91	48	0.00
October 17	80	50	0.00
October 18	66	58	0.00
October 19	72	47	0.00
October 20	76	47	0.00
October 21	81	50	0.00
October 22	75	52	0.00
October 23	68	56	0.00
October 24	76	54	0.00
October 25	67	55	0.00
October 26	72	51	0.26
October 27	85	49	0.00
October 28	91	53	0.00
October 29	84	53	0.00
October 30	75	55	0.00
October 31	73	57	0.00

November 2021 El Cajon Weather

Day	High (°F)	Low (°F)
November 1	77	53
November 2	73	54
November 3	82	52
November 4	80	54
November 5	83	53
November 6	78	54
November 7	74	52
November 8	70	50
November 9	75	54
November 10	81	57
November 11	92	54
November 12	95	53
November 13	91	51
November 14	93	52
November 15	86	48
November 16	71	49
November 17	72	52
November 18	71	51
November 19	71	50
November 20	71	51
November 21	87	48
November 22	86	51
November 23	73	52
November 24	73	46
November 25	76	44
November 26	83	48
November 27	81	41
November 28	86	42
November 29	84	43
November 30	80	44

December 2021 El Cajon Weather

Day	High (°F)	Low (°F)	Precip. (inches)
December 1	84	46	0.00
December 2	70	48	0.00
December 3	70	50	0.00
December 4	67	51	0.00
December 5	75	49	0.00
December 6	69	42	0.00
December 7	60	50	0.02
December 8	70	48	0.00
December 9	61	52	0.17
December 10	61	46	0.10
December 11	71	40	0.00
December 12	68	39	0.00
December 13	58	43	0.00
December 14	60	44	1.27
December 15	59	41	0.07
December 16	61	37	0.00
December 17	69	46	0.00
December 18	71	38	0.00
December 19	68	36	0.00
December 20	70	35	0.00
December 21	69	50	0.00
December 22	67	45	0.00
December 23	68	50	0.13
December 24	60	50	1.49
December 25	57	49	0.14
December 26	58	42	0.30
December 27	55	39	0.00
December 28	55	46	0.45
December 29	57	45	0.10
December 30	65	47	0.00
December 31	61	50	0.00

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Weather Station Details

Years	Station	Coordinates
1979–2024	El Cajon	location
1899–1979	El Cajon 2 E	location