El Cajon Historic Weather Records
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El Cajon Weather Trend Graph

Temperature (°C)

Months

Months	Historic Min Temp.	Min Temp.	Forecasted Min Temp.	Historic Max Temp.	Max Temp.	Forecasted Max Temp.
	7.5375000000000005	14.9		17.475	16.8
	7.9375	13.4		18.9625	16.5
	8.3875	12.2		18.237499999999997	17.8
	8.425	12		19.018749999999997	15
	8.98125	12.4		19.4	15.2
	9.218750000000002	12.4		19.51875	15.7
	9.09375	9.7		18.78125	14.3
	8.9125	6.2		18.743750000000002	12.3
	8.943750000000001	1.8		18.1875	16.5
	8.993750000000002	7.9		18.075	19.3
	8.781249999999998	9.9		18.31875	21.6
	8.53125	9.3		18.78125	23
	9.087500000000002	9.9		18.9	25.7
	8.95625	9.5		19.5125	25.9
Jan.	9.75	9.9		19.743750000000002	27.2
	9.90625	11.6		19.50625	24.3
	10.075	8.1		19.41875	26.7
	9.7875	13.1		19.575	28.9
	9.49375	10.1		18.73125	27.7
	9.7375	9.8		18.812500000000004	23.6
	9.0875	11.5		18.037499999999998	18.1
	8.2125	12.4		18.5125	15.6
	8.5625	11		18.443749999999998	14.3
	8.8625	10		18.975	13.5
	8.76875	2.7		18.75625	18.8
	9.150000000000002	9		18.868750000000002	21.2
	8.6625	5.2		19.331249999999997	23
	9.025000000000002	10.1		19.856250000000003	20.9
	9.96875	7.7		19.4	27
	9.475	8.2		18.718750000000004	28.7
	9.025	11.7		18.518749999999997	28.6
	8.86875	11.2		18.706249999999997	22.8
	8.875	12.7		18.81875	20.9
	9.018749999999999	11.1		18.2	23.8
	8.66875	10.4		18.431250000000002	28.9
	8.95625	14.1		18.3125	23.5
	8.9	11.6		18.45	20.6
	9.4375	11.7		19.24375	19.7
	8.993749999999999	10.5		19.525000000000002	24.3
	9.775000000000002	15.2		19.793749999999996	24.7
	9.125000000000002	12.8		18.80625	19.6
	8.63125	12.6		19.0625	15.8
	9.256249999999998	8.8		19.29375	19.5
	9.675	10.6		20.2125	15.3
	9.9	10.5		19.650000000000006	19.3
Feb.	9.44375	9.1		20.1625	16.4
	9.862499999999999	6.5		20.175	13.7
	9.799999999999999	9.5		19.13125	13
	8.66875	9		18.275	11.1
	8.55625	7.6		16.91875	11.1
	8.4	7		17.474999999999998	11.9
	8.625	3.6		17.8875	19.3
	8.475000000000001	9		17.674999999999997	21.8
	8.399999999999999	10.4		18.031249999999996	23.9
	8.01875	14.9		18.875	24.4
	8.45	14.9		19.275000000000006	25
	8.862499999999999	14.3		18.456249999999997	29.2
	8.90625	16.6		17.887500000000003	31.1
	9.012500000000001	19.1		18.418749999999996	27.2
	9.200000000000001	16.8		18.7625	29.5
	9.375000000000002	11.2		18.393749999999997	18.5
	9.20625	9.1		17.606249999999996	22.7
	8.94375	12.2		17.781249999999996	18.5
	8.91875	10.6		19.318749999999998	20
	9.99375	7.6		18.4875	23
	8.937499999999998	8		17.5375	25.8
	8.80625	10.2		17.5375	28.8
	8.9375	11.1		19.3125	21.2
	9.69375	10.9		19.8625	19.1
	9.906250000000002	11.2		19.5875	24.2
	10.05	12		19.525	34
	10.3375	17.6		18.54375	33.4
	10.0125	14.3		19.925	24.9
Mar.	10.468749999999998	13.1		20.23125	29.4
	10.05625	14.5		20.756249999999998	34.4
	10.1375	19.1		20.74375	35.6
	10.09375	20.2		19.731249999999996	32.6
	9.8125	19.7		19.881249999999998	33.8
	10.51875	20		19.11875	33.8
	10.06875	18		19.643749999999997	32.1
	10.18125	16.8		19.231250000000003	30.5
	10.48125	16.6		19.456249999999997	30.4
	10.100000000000001	17.1		20.1	29.2
	10.15625	15		19.21875	29.7
	10.237500000000002	16		18.79375	30.5
	9.9375	16.7		19.93125	30.7
	10.125	19.1		21.056249999999995	30.6
	10.55	17.3		20.306250000000006	32.1
	10.606249999999998	15.6		19.63125	23.5
	10.531250000000002	14.8		20.212499999999995	20.3
	10.700000000000001	14		20.056250000000002	23.3
	10.43125	12.7		19.275000000000002	24.1
	10.462499999999999	10.4		20.256249999999998	33
	10.431249999999999	10.8		21.24375	34.9
	10.60625	12.1		20.625	30.7
	10.69375	14		21.412499999999998	29.6
	11.125	11.2		22.831249999999997	29
	11.525000000000002	11.6		21.825	30.7
	10.893749999999999	12.9		22.062499999999996	27.6
	11.275	14.9		22.8625	27.7
	11.418750000000001	14.7		21.9875	24
	11.049999999999999	12.6		19.9875	21.2
	10.800000000000002	12		19.612499999999997	18.6
	10.36875	9.3		20.668750000000003	25.9
Apr.	10.612499999999999	9.9		20.7	26.4
	10.6875	10.8		20.5	25.6
	10.568750000000001	10.6		22.1375	27.4
	12.0625	10.8		22.706249999999997	28.3
	11.900000000000002	12.1		22.43125	26.4
	11.6375	12.9		22.525	27.1
	12.318750000000001	12.2		22.60625	25.1
	12.175	12.1		21.481250000000003	24.5
	11.543750000000001	10.2		21.79375	28.3
	12.0125	10.1		21.431250000000002	25.8
	12.174999999999999	13.9		21.937500000000004	21.1
	11.812499999999998	12		21.349999999999998	20.1
	11.98125	10.1		21.750000000000004	21
	11.90625	8.2		22.524999999999995	25.3
	12.343749999999998	9.2		23.1625	26.9
	12.825	11.6		23.76875	24.3
	12.725000000000001	13.1		22.731250000000003	26.1
	12.693750000000001	13.3		22.981250000000003	27.8
	12.987499999999999	14.6		23.93125	23.9
	12.656249999999998	13.5		23.56875	20.9
	12.674999999999999	12.6		22.512500000000003	23
	12.675	9.9		21.150000000000002	26.9
	11.868749999999997	10.8		20.775	29.2
	12.1125	14.9		21.393749999999997	31.4
	12.218750000000002	14.5		21.6	31.4
	12.875000000000002	12.2		22.31875	29.6
	12.687499999999998	11.8		22.525	29.8
	12.768749999999999	15.2		23.706249999999997	20.8
	13.506249999999998	11.8		24.006249999999998	28
	12.950000000000001	14.8		23.3	26
May	12.656249999999998	13.5		22.212499999999995	24.5
	12.600000000000001	15.6		21.36875	23.9
	12.468749999999998	14.7		20.912499999999998	22.2
	12.575000000000001	14.1		21.299999999999997	26.7
	12.643749999999999	10.4		22.15	31
	12.824999999999996	15.3		22.599999999999998	26.2
	13.15625	13.2		22.19375	28.9
	12.7125	12.8		21.6875	25.4
	12.4875	15		21.318749999999998	28.1
	12.368750000000002	15.5		21.568749999999998	23.7
	12.475000000000001	16.1		21.4625	24.1
	12.7125	14.9		20.95625	22.6
	12.750000000000004	13.4		21.975	21.6
	13.30625	11.4		22.675000000000004	22.2
	13.0875	13.3		22.5625	26.1
	13.41875	11.3		23.5875	28.2
	13.51875	11.7		23.7125	31.9
	13.900000000000004	14.3		24.2875	29.3
	14.075000000000001	13.3		24.606250000000003	29
	13.950000000000001	14.9		24.5875	30.5
	14.15	14.5		24.556250000000002	28.4
	14.23125	15.2		24.231250000000003	28.2
	13.968749999999998	15.1		23.14375	24.2
	13.94375	15.6		23.337500000000002	28
	14.287500000000003	16.4		24.65	26
	14.55625	12.3		25.5125	30.5
	14.70625	14.9		24.83125	30.7
	14.856250000000001	15.2		24.599999999999998	32.2
	14.8375	16.4		24.681250000000006	34.9
	14.575	17.5		24.79375	35.5
	14.712499999999999	16.3		25.625	34.2
Jun.	15.031249999999998	17.2		26.51875	32.8
	15.168750000000001	17		25.637500000000003	32.5
	15.0625	16.8		25.462500000000002	31
	15.15625	16.9		25.8375	28.2
	15.05625	16.4		26.35	28.7
	15.875000000000002	14.6		27.225	29.4
	15.9375	14.4		26.6375	29.6
	15.8125	15.7		26.4875	30.4
	15.656250000000002	15.8		26.7375	32.1
	15.7875	16.3		26.68125000000001	32.4
	16.0375	16.7		27.043749999999996	30.8
	16.40625	16.2		27.175	29.2
	16.412499999999998	15.1		27.749999999999993	24.9
	16.918750000000003	16.3		27.700000000000003	25
	16.93125	13.8		27.03125	25.4
	16.9875	16.4		27.90625	27.8
	17.01875	16.6		27.924999999999997	28.8
	16.950000000000003	16.7		27.206250000000008	30.6
	16.456250000000004	15.3		27.375	33.6
	16.81875	15.1		27.275000000000002	33.7
	17.112499999999997	16.9		27.95	32.6
	17.056250000000002	15.9		28.450000000000003	34.4
	17.36875	15.4		28.337500000000002	33.2
	17.381249999999998	16		27.9875	36.6
	17.6	15.7		28.099999999999998	32.3
	18.18125	14.8		28.7625	30.9
	18.36875	16.5		28.462500000000006	29.9
	18.099999999999998	17.2		28.793750000000006	32.5
	18.3625	17.6		28.70625	34.2
	18.381249999999998	19.2		28.7875	36.5
Jul.	18.16875	19.4		28.625000000000004	39.7
	17.8375	19		28.11875	34.1
	17.61875	18.5		27.831249999999997	32
	18.112499999999997	19.1		27.856250000000003	33.4
	18.393749999999997	18.7		28.46875	35.7
	18.5625	18.8		28.568749999999994	36.3
	18.4625	18.3		28.462500000000002	36.2
	18.39375	20.7		28.187500000000004	36.1
	18.281249999999996	18.9		28.6375	39.5
	18.7375	20		29.012500000000003	36.3
	18.968749999999996	17.9		28.3375	35
	18.631249999999998	19.8		28.518749999999997	37.7
	18.3875	20.1		28.4875	34.8
	18.175	17.6		28.218749999999996	33.6
	18.13125	17.3		28.793750000000003	35.5
	18.743750000000002	18		28.70625	36.7
	18.806250000000002	16.4		28.74375	36.7
	18.968749999999996	17.6		29.650000000000002	35.5
	19.349999999999994	17.5		30.212500000000002	35.1
	19.275	16.8		29.849999999999998	35.5
	18.93125	17.9		29.55625	35.9
	18.8125	17.2		29.5375	35.1
	18.418750000000003	18.6		29.374999999999993	36.8
	18.437499999999996	19.4		28.875	36.3
	18.21875	18.2		28.48125	38.6
	18.29375	19.2		28.650000000000002	38.4
	18.6	19.6		28.637500000000003	32.9
	18.599999999999998	19.3		29.006249999999998	34.9
	18.65	19.9		28.88125	32.6
	19.15625	19.7		29.468749999999996	30.8
	19.374999999999996	17.8		30.493750000000006	31.4
Aug.	19.8125	19.6		30.4875	28.3
	19.856250000000003	21.3		30.900000000000006	30.8
	19.724999999999998	17.8		30.48125	36
	19.868750000000002		17.4	29.743750000000002		31.3
	19.312499999999996		23	28.91875		32.7
	19.175		23.9	28.76875		30.3
	18.768750000000008		24	29.25625		30.5
	19.287499999999998		24.7	29.174999999999997		32.6
	19.00625		26.3	29.0125		32.9
	19.00625		25.5	29.45		33.1
	19.70625		25.9	30.01875		33
	19.79375		19.7	30.318749999999998		30.8
	19.69375		19.8	30.537499999999998		31
	19.51875		19.8	30.675000000000004		30.8
	19.76875		19.9	30.981250000000003		31.3
	19.812500000000004		19.8	30.712500000000002		30.7
	19.58125		19.9	30.162499999999998		30.2
	19.962500000000002		19.8	29.9625		30.1
	19.71875		19.7	29.906249999999996		29.8
	19.599999999999998		19.8	29.4875		29.8
	19.818749999999998		19.9	29.95		30.4
	19.825		20.3	30.624999999999996		31.2
	20.5		20.7	31.28125		31.2
	21.10625		20.8	31.80624999999999		31.1
	20.656250000000004		20.4	31.337499999999995		31
	20.18125		20	29.724999999999998		29.8
	19.6375		19.5	29.1625		29.2
	19.73125		19.2	29.24375		28.4
	18.84375		18.5	28.725		28.4
	18.475		18.1	28.437499999999996		28.1
	18.099999999999994		18	28.3625		28.7
Sep.	18.4125		18.3	28.7875		28.8
	18.4375		18.2	28.76875		28
	17.71875		17.6	27.187500000000004		27.4
	17.4875			27.249999999999996
	17.1375			27.61875
	17.3375			27.387500000000003
	17.29375			25.893750000000004
	17.18125			27.081249999999994
	17.98125			28.518749999999997
	17.799999999999997			29.331249999999997
	17.812499999999996			28.6625
	17.368750000000002			27.343750000000004
	17.4125			28.325
	17.812500000000004			27.618750000000002
	17.4875			27.731250000000003
	17.375			28.375
	17.681250000000002			28.5
	17.71875			28.8
	17.331249999999997			28.018750000000004
	16.45			26.925
	16.112499999999997			26.287499999999998
	16.325			26.693750000000005
	16.6125			27.306250000000002
	16.637500000000003			27.031249999999996
	16.518749999999997			26.69375
	16.21875			26.75
	16.0125			25.7
	15.962500000000002			26
	15.48125			25.218750000000004
	15.44375			25.675
Oct.	15.649999999999999			26.4875
	15.881249999999998			27.21875
	16.168750000000003			26.375000000000004
	15.893749999999999			26.175000000000004
	15.975			25.687500000000004
	15.212499999999997			25.737499999999997
	15.050000000000002			25.793749999999996
	15.56875			25.34999999999999
	15.59375			24.868750000000002
	15.362499999999997			25.912499999999998
	15.493750000000004			24.500000000000004
	14.612499999999999			24.21875
	14.618749999999997			25.500000000000004
	14.2625			26.018750000000004
	14.150000000000002			25.16875
	13.643749999999997			24.425
	13.131250000000001			24.693750000000005
	13.362499999999999			24.41875
	13.393749999999999			24.15
	13.05625			23.343750000000004
	12.88125			23.55
	12.987499999999997			24.612499999999994
	13.39375			24.549999999999997
	13.424999999999999			23.70625
	12.756249999999998			23.4625
	12.343749999999998			23.575
	12.112499999999999			22.45625
	11.931250000000004			23.28125
	12.38125			23.243750000000006
	12.59375			23.475
	12.437499999999998			24.20625
Nov.	12.768750000000002			22.34375
	12.44375			21.606250000000003
	12.006250000000001			21.950000000000003
	11.875			21.993750000000002
	11.4125			20.6
	11.275			20.500000000000004
	11.64375			21.1
	11.893749999999999			22.156250000000004
	11.31875			21.393750000000004
	11.299999999999999			20.775
	10.9125			21.85625
	10.893749999999999			22.3125
	11.356250000000001			20.80625
	10.5625			19.581250000000004
	10.4125			19.1375
	10.168750000000003			19.9125
	10.40625			20.3
	10.825000000000001			20.31875
	10.675			20.06875
	9.912500000000001			18.96875
	10.04375			20.26875
	10.30625			19.84375
	10.343750000000002			20.187500000000004
	9.8375			20.81875
	10.268749999999999			20.775000000000002
	10.225000000000001			20.26875
	10.3375			19.718750000000004
	10.05			19.13125
	9.6625			18.643749999999997
	9.06875			18.18125
Dec.	9.450000000000001			18.41875
	9.325			18.662499999999998
	8.799999999999999			19.193749999999998
	9.737499999999999			18.375
	9.25			18.049999999999997
	8.700000000000001			18.325
	9.8			19.2
	10.06875			18.731250000000003
	10.0875			18.20625
	10.268749999999999			18.95625
	9.51875			17.325
	8.475			17.2875
	8.08125			17.8875
	8.11875			17.587500000000002
	8.39375			17.18125
	8.893749999999999			17.31875
	8.186666666666666			16.413333333333334

Max Temp.

Historic Max Temp.

Min Temp.

Historic Min Temp.

Yearly Summary 2026

40°C

Highest Temp

15 Jul. 26

2°C

Lowest Temp

9 Jan. 26

Seasonal Breakdown

Hottest MonthJuly34.49°C

Coldest MonthJanuary9.79°C

Wettest MonthFebruary5.42mm

Windiest MonthApril20.62km/h

El Cajon Climate Change InsightsSee how climate patterns are evolving over time. Temperature shifts, rainfall trends, and extreme events—all in one place.

Weather City Ranking GloballyExplore Real time of the world’s hottest & Coldest Cities based on current temperature data.

Frequently Asked Questions

1. What is the hottest month in El Cajon historically?

August is historically El Cajon's hottest month, with average maximum temperatures around 30°C. During peak heatwave events, the highest recorded temperatures have reached 41°C on 2020-09-05.

2. What is the coldest month in El Cajon historically?

January is El Cajon's coldest month, with average minimum temperatures around 9°C. The all-time record low of 2°C was recorded on 2013-01-12.

3. What is the average annual rainfall in El Cajon over the past 17 years?

El Cajon's average annual rainfall is approximately 398.8mm, based on records spanning 17 years.

4. How many rainy days does El Cajon experience on average per year?

El Cajon historically records approximately 82 rainy days per year. January has the highest number of rain days at an average of 7.8 days.

5. What is the all-time highest temperature ever recorded in El Cajon?

The all-time highest temperature recorded in El Cajon is 41°C on 2020-09-05.

6. What is the all-time lowest temperature ever recorded in El Cajon?

The all-time lowest temperature recorded in El Cajon is 2°C on 2013-01-12.

7. What is the windiest time of year in El Cajon historically?

El Cajon experiences its strongest winds during May. The historic gust record of 52.6 kph was recorded on 2010-01-21.

8. What is the highest and lowest humidity in El Cajon during a year?

Usually, El Cajon's humidity peaks in May at around 64.4% and drops to its lowest in November at approximately 49.7%.

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El Cajon Historic Weather Records
Analyse hottest, coldest, windiest & wettest days

El Cajon Weather Trend Graph

Yearly Summary 2026

Seasonal Breakdown

Frequently Asked Questions

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