El Cajon 2 E Weather Records (USC00042705)

Record envelope, standing records and threshold days for El Cajon 2 E (USC00042705), California, United States, with 61 years of record.

Key Facts for El Cajon 2 E

El Cajon 2 E (USC00042705) is a weather station in California, United States at 32.78 latitude and -116.92 longitude, 162 m (531 ft) above sea level.
The station reports from 1899 to 1959, 61 years of record.
1,464 records set at El Cajon 2 E still stand.
Records are tracked for tmax, tmin, prcp: an element needs 30 years of data to be eligible.
El Cajon 2 E set a daily record high minimum temperature of 20.0 C (68.0 F) on 13 September 1959.

About the Station

Location: California, United States, 32.78 latitude, -116.92 longitude.
Elevation: 162 m (531 ft).
Period of record: 1899 to 1959, 61 years.
Eligible elements: tmax, tmin, prcp.

Daily Record Envelope and 2026

0 days at or beyond a record

The band shows the record high and record low for each calendar day at El Cajon 2 E. The lines show the 2026 daily maximum and minimum. 0 days in 2026 matched or passed a record. Temperatures are in degrees Celsius.

Daily record high and record low at El Cajon 2 E, with 2026 drawn through them
Month	Highest record high	Lowest record low	2026 highest maximum	2026 lowest minimum
Jan	33.9 C (93.0 F)	-7.2 C (19.0 F)	n/a	n/a
Feb	33.9 C (93.0 F)	-6.1 C (21.0 F)	n/a	n/a
Mar	35.6 C (96.1 F)	-3.3 C (26.1 F)	n/a	n/a
Apr	40.6 C (105.1 F)	-1.7 C (28.9 F)	n/a	n/a
May	41.1 C (106.0 F)	1.1 C (34.0 F)	n/a	n/a
Jun	45.0 C (113.0 F)	4.4 C (39.9 F)	n/a	n/a
Jul	43.3 C (109.9 F)	6.7 C (44.1 F)	n/a	n/a
Aug	43.9 C (111.0 F)	6.7 C (44.1 F)	n/a	n/a
Sep	45.0 C (113.0 F)	2.8 C (37.0 F)	n/a	n/a
Oct	41.7 C (107.1 F)	0.0 C (32.0 F)	n/a	n/a
Nov	36.7 C (98.1 F)	-3.9 C (25.0 F)	n/a	n/a
Dec	35.0 C (95.0 F)	-6.1 C (21.0 F)	n/a	n/a

Which Years Hold Standing Records

1,464 standing records

1,464 records at El Cajon 2 E still stand. 1904 holds the most, with 92.

Standing records at El Cajon 2 E by the year they were set
Year set	Standing records
1899	29
1900	37
1901	5
1902	20
1903	16
1904	92
1905	24
1906	32
1907	22
1908	22
1909	24
1910	23
1911	16
1912	24
1913	22
1914	32
1915	30
1916	26
1917	44
1918	33
1919	32
1920	21
1921	25
1922	28
1923	22
1924	22
1925	20
1926	33
1927	22
1928	27
1929	23
1930	29
1931	29
1932	33
1933	31
1934	30
1935	15
1936	13
1937	9
1938	17
1939	17
1940	26
1941	12
1942	11
1943	12
1944	15
1945	15
1946	12
1947	16
1948	24
1949	30
1950	23
1951	10
1952	9
1953	25
1954	25
1955	30
1956	29
1957	27
1958	21
1959	21

All-Time Record Progression

1 new records

1 all-time records were set at El Cajon 2 E between 11 January 1949 and 11 January 1949. Each dot is a new record.

Wettest Day of Each Month

Jan: 142.2 mm (5.6 in)

The wettest day on record for each calendar month at El Cajon 2 E. The most was 142.2 mm (5.6 in) on 27 January 1916.

Record daily precipitation for each month at El Cajon 2 E
Month	Record daily precipitation (mm)	Date
Jan	142.2 mm (5.6 in)	27 January 1916
Feb	130.8 mm (5.1 in)	16 February 1927
Mar	53.1 mm (2.1 in)	14 March 1941
Apr	90.7 mm (3.6 in)	5 April 1926
May	43.2 mm (1.7 in)	1 May 1930
Jun	17.8 mm (0.7 in)	29 June 1912
Jul	19.1 mm (0.8 in)	25 July 1902
Aug	34.3 mm (1.4 in)	19 August 1945
Sep	34.3 mm (1.4 in)	7 September 1939
Oct	66.0 mm (2.6 in)	4 October 1925
Nov	48.3 mm (1.9 in)	12 November 1944
Dec	104.1 mm (4.1 in)	25 December 1921

Period of Record Coverage

1899 to 1959

61 years of record at El Cajon 2 E, 1899 to 1959. 6 years have data for under 90 percent of days and are left out of rankings: 1901, 1904, 1911, 1912, 1954, 1959.

Days with data per year at El Cajon 2 E
Year	Days with data	Share of year	Complete
1899	334	92%	Yes
1900	365	100%	Yes
1901	201	55%	No
1902	361	99%	Yes
1903	360	99%	Yes
1904	326	89%	No
1905	365	100%	Yes
1906	334	92%	Yes
1907	365	100%	Yes
1908	357	98%	Yes
1909	365	100%	Yes
1910	365	100%	Yes
1911	216	59%	No
1912	324	89%	No
1913	364	100%	Yes
1914	365	100%	Yes
1915	365	100%	Yes
1916	366	100%	Yes
1917	364	100%	Yes
1918	365	100%	Yes
1919	364	100%	Yes
1920	365	100%	Yes
1921	365	100%	Yes
1922	365	100%	Yes
1923	365	100%	Yes
1924	366	100%	Yes
1925	365	100%	Yes
1926	365	100%	Yes
1927	365	100%	Yes
1928	366	100%	Yes
1929	358	98%	Yes
1930	365	100%	Yes
1931	365	100%	Yes
1932	366	100%	Yes
1933	350	96%	Yes
1934	363	99%	Yes
1935	365	100%	Yes
1936	366	100%	Yes
1937	364	100%	Yes
1938	365	100%	Yes
1939	363	99%	Yes
1940	365	100%	Yes
1941	364	100%	Yes
1942	362	99%	Yes
1943	362	99%	Yes
1944	365	100%	Yes
1945	354	97%	Yes
1946	363	99%	Yes
1947	364	100%	Yes
1948	359	98%	Yes
1949	361	99%	Yes
1950	364	100%	Yes
1951	365	100%	Yes
1952	361	99%	Yes
1953	365	100%	Yes
1954	281	77%	No
1955	364	100%	Yes
1956	353	96%	Yes
1957	363	99%	Yes
1958	363	99%	Yes
1959	296	81%	No

Latest Records

Latest records at El Cajon 2 E
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
13 September 1959	El Cajon 2 E, US	daily high min	20.0 C (68.0 F)	1.7 C (3.1 F)	54 years	27 of 100 (Routine)
12 September 1959	El Cajon 2 E, US	daily high min	21.7 C (71.1 F)	1.1 C (2.0 F)	54 years	25 of 100 (Routine)
11 September 1959	El Cajon 2 E, US	daily high min	22.2 C (72.0 F)	2.2 C (4.0 F)	20 years	19 of 100 (Routine)
25 August 1959	El Cajon 2 E, US	daily low max	24.4 C (75.9 F)	0.6 C (1.1 F)	38 years	18 of 100 (Routine)
24 August 1959	El Cajon 2 E, US	daily high min	20.6 C (69.1 F)	0.6 C (1.1 F)	45 years	21 of 100 (Routine)
21 August 1959	El Cajon 2 E, US	daily low min (Tie)	9.4 C (48.9 F)	tie	33 years	4 of 100 (Routine)
19 August 1959	El Cajon 2 E, US	daily low max (Tie)	24.4 C (75.9 F)	tie	52 years	5 of 100 (Routine)
1 August 1959	El Cajon 2 E, US	daily high max	40.0 C (104.0 F)	0.6 C (1.1 F)	42 years	19 of 100 (Routine)
24 July 1959	El Cajon 2 E, US	daily high max	38.3 C (100.9 F)	0.5 C (0.9 F)	58 years	24 of 100 (Routine)
23 July 1959	El Cajon 2 E, US	daily high min (Tie)	18.9 C (66.0 F)	tie	52 years	5 of 100 (Routine)
20 July 1959	El Cajon 2 E, US	daily low max (Tie)	24.4 C (75.9 F)	tie	34 years	4 of 100 (Routine)
10 July 1959	El Cajon 2 E, US	daily high min	18.3 C (64.9 F)	1.1 C (2.0 F)	29 years	18 of 100 (Routine)
10 July 1959	El Cajon 2 E, US	daily high max	41.1 C (106.0 F)	0.5 C (0.9 F)	18 years	12 of 100 (Routine)
21 June 1959	El Cajon 2 E, US	daily high max	36.1 C (97.0 F)	0.5 C (0.9 F)	40 years	19 of 100 (Routine)
26 May 1959	El Cajon 2 E, US	daily high min (Tie)	15.0 C (59.0 F)	tie	40 years	4 of 100 (Routine)
1 May 1959	El Cajon 2 E, US	daily high min (Tie)	15.0 C (59.0 F)	tie	28 years	3 of 100 (Routine)
21 April 1959	El Cajon 2 E, US	daily high min	15.0 C (59.0 F)	1.1 C (2.0 F)	28 years	17 of 100 (Routine)
9 April 1959	El Cajon 2 E, US	daily high min	14.4 C (57.9 F)	2.2 C (4.0 F)	48 years	26 of 100 (Routine)
8 April 1959	El Cajon 2 E, US	daily high min	13.3 C (55.9 F)	1.1 C (2.0 F)	53 years	25 of 100 (Routine)
3 April 1959	El Cajon 2 E, US	daily high max	30.0 C (86.0 F)	0.6 C (1.1 F)	16 years	12 of 100 (Routine)

Climate Trend

53 complete years, 1900 to 1958

One stripe for each of 53 complete years at El Cajon 2 E, 1900 to 1958. Blue stripes are years cooler than the station's own mean of 16.8 C (62.2 F); red stripes are warmer. The coolest year was 1932, at 15.5 C (59.8 F), and the warmest was 1918, at 17.7 C (63.9 F). The strongest colour marks a difference of 1.4 C (2.5 F).

Annual mean temperature at El Cajon 2 E as warming stripes, 1900 to 1958
Year	Annual mean temperature	Difference from the station mean
1900	17.0 C	+0.23 C
1902	16.0 C	-0.82 C
1903	16.7 C	-0.10 C
1905	17.1 C	+0.29 C
1907	17.3 C	+0.48 C
1908	16.7 C	-0.10 C
1909	16.4 C	-0.36 C
1910	17.0 C	+0.26 C
1912	16.4 C	-0.34 C
1913	16.4 C	-0.40 C
1914	16.8 C	+0.01 C
1915	16.5 C	-0.30 C
1916	16.4 C	-0.39 C
1917	17.2 C	+0.42 C
1918	17.7 C	+0.93 C
1919	16.8 C	-0.03 C
1920	16.4 C	-0.37 C
1921	16.9 C	+0.07 C
1922	16.6 C	-0.18 C
1923	16.8 C	+0.05 C
1924	16.7 C	-0.06 C
1925	16.9 C	+0.13 C
1926	17.6 C	+0.80 C
1927	17.0 C	+0.23 C
1928	17.0 C	+0.24 C
1929	17.2 C	+0.38 C
1930	17.0 C	+0.21 C
1931	17.2 C	+0.41 C
1932	15.5 C	-1.32 C
1934	17.5 C	+0.69 C
1935	16.6 C	-0.20 C
1936	17.4 C	+0.58 C
1937	16.8 C	+0.01 C
1938	17.1 C	+0.28 C
1939	17.2 C	+0.45 C
1940	17.6 C	+0.81 C
1941	16.8 C	+0.06 C
1942	16.4 C	-0.42 C
1943	17.2 C	+0.40 C
1944	16.1 C	-0.70 C
1945	16.3 C	-0.44 C
1946	16.6 C	-0.15 C
1947	17.0 C	+0.19 C
1948	15.7 C	-1.08 C
1949	15.8 C	-0.99 C
1950	16.2 C	-0.58 C
1951	16.6 C	-0.23 C
1952	16.6 C	-0.20 C
1953	17.5 C	+0.73 C
1955	16.3 C	-0.47 C
1956	16.7 C	-0.04 C
1957	16.8 C	+0.03 C
1958	17.5 C	+0.74 C

The fitted trend in annual mean temperature here over 1900 to 1958 is -0.01 C (-0.10 to 0.07) per decade. The interval includes zero, so the trend is not clearly different from zero. In Fahrenheit: -0.03 F (-0.18 to 0.13) per decade. The slope is a straight line fitted to 53 complete years; the brackets give its 95 percent interval.

Fitted temperature trends per decade at El Cajon 2 E
Measure	Per decade (C)	Per decade (F)	Period	Complete years	Reading
Annual mean temperature	-0.01 C (-0.10 to 0.07) per decade	-0.03 F (-0.18 to 0.13) per decade	1900 to 1958	53	Not clearly different from zero
Mean daily maximum	0.09 C (-0.03 to 0.20) per decade	0.2 F (-0.1 to 0.4) per decade	1900 to 1958	53	Not clearly different from zero
Mean daily minimum	-0.11 C (-0.22 to 0.00) per decade	-0.21 F (-0.40 to -0.01) per decade	1900 to 1958	53	Fall

A year is complete when all 12 months have at least 20 days of both daily maximum and daily minimum readings. The annual mean is the mean of the monthly means. The trend describes this one station over this period; it does not say what caused the change.

Extremes by Year

1899 to 1959

Yearly extremes at El Cajon 2 E: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Hottest day (TXx)	45.0 C (113.0 F)	1917	40.6 C (105.1 F)	61
Coldest night (TNn)	-7.2 C (19.0 F)	1913	-3.3 C (26.1 F)	61
Wettest day (Rx1day)	142.2 mm (5.6 in)	1916	40.6 mm (1.6 in)	61
Wettest five days (Rx5day)	275.7 mm (10.9 in)	1927	73.4 mm (2.9 in)	61
Longest dry spell (CDD)	191 days	1952	100 days	61

Hottest day (TXx)

The hottest day of the year at El Cajon 2 E, 1899 to 1959. The record is 45.0 C (113.0 F) in 1917, marked on the chart; the median year is 40.6 C (105.1 F).

Hottest day (TXx) at El Cajon 2 E by year
Year	Hottest day (TXx)
1899	40.0 C (104.0 F)
1900	41.1 C (106.0 F)
1901	38.3 C (100.9 F)
1902	38.3 C (100.9 F)
1903	39.4 C (102.9 F)
1904	38.9 C (102.0 F)
1905	41.1 C (106.0 F)
1906	43.3 C (109.9 F)
1907	41.7 C (107.1 F)
1908	40.6 C (105.1 F)
1909	42.2 C (108.0 F)
1910	38.9 C (102.0 F)
1911	39.4 C (102.9 F)
1912	38.3 C (100.9 F)
1913	42.2 C (108.0 F)
1914	36.7 C (98.1 F)
1915	39.4 C (102.9 F)
1916	39.4 C (102.9 F)
1917	45.0 C (113.0 F)
1918	41.7 C (107.1 F)
1919	40.6 C (105.1 F)
1920	39.4 C (102.9 F)
1921	42.8 C (109.0 F)
1922	43.9 C (111.0 F)
1923	38.9 C (102.0 F)
1924	41.1 C (106.0 F)
1925	38.9 C (102.0 F)
1926	40.6 C (105.1 F)
1927	39.4 C (102.9 F)
1928	42.2 C (108.0 F)
1929	43.9 C (111.0 F)
1930	40.6 C (105.1 F)
1931	38.9 C (102.0 F)
1932	36.1 C (97.0 F)
1933	38.9 C (102.0 F)
1934	43.3 C (109.9 F)
1935	38.9 C (102.0 F)
1936	38.9 C (102.0 F)
1937	40.6 C (105.1 F)
1938	38.9 C (102.0 F)
1939	40.6 C (105.1 F)
1940	40.6 C (105.1 F)
1941	37.8 C (100.0 F)
1942	40.0 C (104.0 F)
1943	39.4 C (102.9 F)
1944	42.8 C (109.0 F)
1945	40.6 C (105.1 F)
1946	40.6 C (105.1 F)
1947	41.1 C (106.0 F)
1948	41.7 C (107.1 F)
1949	40.6 C (105.1 F)
1950	41.1 C (106.0 F)
1951	39.4 C (102.9 F)
1952	39.4 C (102.9 F)
1953	38.9 C (102.0 F)
1954	38.9 C (102.0 F)
1955	45.0 C (113.0 F)
1956	42.2 C (108.0 F)
1957	43.3 C (109.9 F)
1958	41.7 C (107.1 F)
1959	41.1 C (106.0 F)

Coldest night (TNn)

The coldest night of the year at El Cajon 2 E, 1899 to 1959. The record is -7.2 C (19.0 F) in 1913, marked on the chart; the median year is -3.3 C (26.1 F).

Coldest night (TNn) at El Cajon 2 E by year
Year	Coldest night (TNn)
1899	-3.9 C (25.0 F)
1900	-1.1 C (30.0 F)
1901	-4.4 C (24.1 F)
1902	-2.2 C (28.0 F)
1903	-6.1 C (21.0 F)
1904	-2.2 C (28.0 F)
1905	-5.6 C (21.9 F)
1906	-3.9 C (25.0 F)
1907	-1.7 C (28.9 F)
1908	-2.2 C (28.0 F)
1909	-2.8 C (27.0 F)
1910	-3.3 C (26.1 F)
1911	-3.9 C (25.0 F)
1912	-4.4 C (24.1 F)
1913	-7.2 C (19.0 F)
1914	-1.1 C (30.0 F)
1915	-2.8 C (27.0 F)
1916	-4.4 C (24.1 F)
1917	-2.2 C (28.0 F)
1918	-3.3 C (26.1 F)
1919	-4.4 C (24.1 F)
1920	-3.3 C (26.1 F)
1921	-2.8 C (27.0 F)
1922	-5.6 C (21.9 F)
1923	-2.8 C (27.0 F)
1924	-5.0 C (23.0 F)
1925	-3.3 C (26.1 F)
1926	-5.0 C (23.0 F)
1927	-3.3 C (26.1 F)
1928	-4.4 C (24.1 F)
1929	-4.4 C (24.1 F)
1930	-5.6 C (21.9 F)
1931	-3.3 C (26.1 F)
1932	-2.8 C (27.0 F)
1933	-6.7 C (19.9 F)
1934	-2.2 C (28.0 F)
1935	-3.3 C (26.1 F)
1936	-2.8 C (27.0 F)
1937	-4.4 C (24.1 F)
1938	-3.9 C (25.0 F)
1939	-2.2 C (28.0 F)
1940	-2.2 C (28.0 F)
1941	-1.7 C (28.9 F)
1942	-2.8 C (27.0 F)
1943	-2.8 C (27.0 F)
1944	-2.8 C (27.0 F)
1945	-2.2 C (28.0 F)
1946	-3.9 C (25.0 F)
1947	-5.6 C (21.9 F)
1948	-3.9 C (25.0 F)
1949	-5.6 C (21.9 F)
1950	-5.6 C (21.9 F)
1951	-3.9 C (25.0 F)
1952	-3.9 C (25.0 F)
1953	-4.4 C (24.1 F)
1954	-6.7 C (19.9 F)
1955	-4.4 C (24.1 F)
1956	-3.3 C (26.1 F)
1957	-2.2 C (28.0 F)
1958	-3.3 C (26.1 F)
1959	-2.2 C (28.0 F)

Wettest day (Rx1day)

The wettest day of the year at El Cajon 2 E, 1899 to 1959. The record is 142.2 mm (5.6 in) in 1916, marked on the chart; the median year is 40.6 mm (1.6 in).

Wettest day (Rx1day) at El Cajon 2 E by year
Year	Wettest day (Rx1day)
1899	16.3 mm (0.6 in)
1900	22.9 mm (0.9 in)
1901	15.2 mm (0.6 in)
1902	48.0 mm (1.9 in)
1903	15.7 mm (0.6 in)
1904	35.6 mm (1.4 in)
1905	42.4 mm (1.7 in)
1906	24.6 mm (1.0 in)
1907	26.9 mm (1.1 in)
1908	40.6 mm (1.6 in)
1909	63.0 mm (2.5 in)
1910	26.7 mm (1.1 in)
1911	68.6 mm (2.7 in)
1912	44.5 mm (1.8 in)
1913	29.2 mm (1.1 in)
1914	51.1 mm (2.0 in)
1915	49.0 mm (1.9 in)
1916	142.2 mm (5.6 in)
1917	31.8 mm (1.3 in)
1918	49.5 mm (1.9 in)
1919	23.1 mm (0.9 in)
1920	28.4 mm (1.1 in)
1921	104.1 mm (4.1 in)
1922	36.3 mm (1.4 in)
1923	22.4 mm (0.9 in)
1924	47.5 mm (1.9 in)
1925	66.0 mm (2.6 in)
1926	90.7 mm (3.6 in)
1927	130.8 mm (5.1 in)
1928	35.6 mm (1.4 in)
1929	24.1 mm (0.9 in)
1930	43.2 mm (1.7 in)
1931	54.1 mm (2.1 in)
1932	47.0 mm (1.9 in)
1933	38.9 mm (1.5 in)
1934	21.8 mm (0.9 in)
1935	41.4 mm (1.6 in)
1936	55.9 mm (2.2 in)
1937	103.1 mm (4.1 in)
1938	50.8 mm (2.0 in)
1939	34.3 mm (1.4 in)
1940	79.2 mm (3.1 in)
1941	53.1 mm (2.1 in)
1942	40.6 mm (1.6 in)
1943	49.3 mm (1.9 in)
1944	48.3 mm (1.9 in)
1945	59.4 mm (2.3 in)
1946	24.9 mm (1.0 in)
1947	59.7 mm (2.4 in)
1948	38.1 mm (1.5 in)
1949	36.3 mm (1.4 in)
1950	27.2 mm (1.1 in)
1951	43.4 mm (1.7 in)
1952	36.8 mm (1.4 in)
1953	22.4 mm (0.9 in)
1954	33.0 mm (1.3 in)
1955	25.1 mm (1.0 in)
1956	33.0 mm (1.3 in)
1957	30.0 mm (1.2 in)
1958	50.3 mm (2.0 in)
1959	23.6 mm (0.9 in)

Wettest five days (Rx5day)

The wettest five days of the year at El Cajon 2 E, 1899 to 1959. The record is 275.7 mm (10.9 in) in 1927, marked on the chart; the median year is 73.4 mm (2.9 in).

Wettest five days (Rx5day) at El Cajon 2 E by year
Year	Wettest five days (Rx5day)
1899	28.2 mm (1.1 in)
1900	46.8 mm (1.8 in)
1901	18.8 mm (0.7 in)
1902	33.1 mm (1.3 in)
1903	22.1 mm (0.9 in)
1904	42.6 mm (1.7 in)
1905	127.2 mm (5.0 in)
1906	55.9 mm (2.2 in)
1907	45.2 mm (1.8 in)
1908	99.8 mm (3.9 in)
1909	85.4 mm (3.4 in)
1910	59.5 mm (2.3 in)
1911	19.5 mm (0.8 in)
1912	91.2 mm (3.6 in)
1913	53.6 mm (2.1 in)
1914	99.9 mm (3.9 in)
1915	107.9 mm (4.2 in)
1916	217.6 mm (8.6 in)
1917	59.9 mm (2.4 in)
1918	113.3 mm (4.5 in)
1919	32.3 mm (1.3 in)
1920	73.4 mm (2.9 in)
1921	163.6 mm (6.4 in)
1922	67.1 mm (2.6 in)
1923	48.1 mm (1.9 in)
1924	72.9 mm (2.9 in)
1925	112.2 mm (4.4 in)
1926	165.6 mm (6.5 in)
1927	275.7 mm (10.9 in)
1928	41.7 mm (1.6 in)
1929	34.7 mm (1.4 in)
1930	92.0 mm (3.6 in)
1931	83.1 mm (3.3 in)
1932	86.6 mm (3.4 in)
1933	92.8 mm (3.7 in)
1934	57.3 mm (2.3 in)
1935	106.7 mm (4.2 in)
1936	108.2 mm (4.3 in)
1937	116.3 mm (4.6 in)
1938	134.6 mm (5.3 in)
1939	67.8 mm (2.7 in)
1940	126.4 mm (5.0 in)
1941	128.6 mm (5.1 in)
1942	48.5 mm (1.9 in)
1943	102.4 mm (4.0 in)
1944	89.0 mm (3.5 in)
1945	117.7 mm (4.6 in)
1946	41.1 mm (1.6 in)
1947	107.1 mm (4.2 in)
1948	46.9 mm (1.8 in)
1949	100.9 mm (4.0 in)
1950	31.0 mm (1.2 in)
1951	75.4 mm (3.0 in)
1952	75.4 mm (3.0 in)
1953	28.4 mm (1.1 in)
1954	117.3 mm (4.6 in)
1955	49.6 mm (2.0 in)
1956	37.3 mm (1.5 in)
1957	71.9 mm (2.8 in)
1958	63.5 mm (2.5 in)
1959	54.5 mm (2.1 in)

Longest dry spell (CDD)

The longest dry spell of the year at El Cajon 2 E, 1899 to 1959. The record is 191 days in 1952, marked on the chart; the median year is 100 days.

Longest dry spell (CDD) at El Cajon 2 E by year
Year	Longest dry spell (CDD)
1899	130 days
1900	43 days
1901	55 days
1902	89 days
1903	128 days
1904	134 days
1905	117 days
1906	83 days
1907	112 days
1908	79 days
1909	138 days
1910	96 days
1911	79 days
1912	59 days
1913	65 days
1914	110 days
1915	36 days
1916	39 days
1917	54 days
1918	82 days
1919	101 days
1920	116 days
1921	83 days
1922	44 days
1923	61 days
1924	99 days
1925	97 days
1926	71 days
1927	136 days
1928	143 days
1929	138 days
1930	75 days
1931	77 days
1932	127 days
1933	146 days
1934	96 days
1935	114 days
1936	59 days
1937	133 days
1938	59 days
1939	121 days
1940	126 days
1941	74 days
1942	100 days
1943	98 days
1944	156 days
1945	74 days
1946	175 days
1947	125 days
1948	108 days
1949	149 days
1950	126 days
1951	78 days
1952	191 days
1953	96 days
1954	109 days
1955	118 days
1956	119 days
1957	86 days
1958	135 days
1959	121 days

Each chart shows one value per year; the dot marks the record year. TXx is the hottest daily maximum, TNn the coldest daily minimum, Rx1day and Rx5day the largest one-day and five-day rain totals, and CDD the longest run of days with less than 1 mm of rain. A year with missing days can understate an extreme.

Frost Dates and Growing Season

49 years with a frost

Across 49 years with a frost, the median last spring frost at El Cajon 2 E falls on 5 March and the median first autumn frost on 22 November, which leaves a median of 262 days between them.

Fitted over all years, the growing season changes by -6.6 days per decade at this station.

Frost dates and growing season at El Cajon 2 E
Measure	Median, all years	Earliest period	Recent period (1925 to 1958)	Recent against earliest	Fitted trend
Last spring frost	5 March	n/a	12 March	n/a	+4.5 days per decade
First autumn frost	22 November	n/a	20 November	n/a	-2.0 days per decade
Growing days	262 days	n/a	253 days	n/a	-6.6 days per decade

A frost day is a day with a daily minimum at or below 0 C (32 F). The last spring frost and the first autumn frost are the last and first such days of the cold season, and growing days are the days between them. A negative trend for the last spring frost means it comes earlier.

Rainfall Return Levels

51 years, 1899 to 1958

A day with at least 39.4 mm (1.6 in) of rain is expected about once in 2 years. A day with at least 133.0 mm (5.2 in) of rain is expected about once in 100 years.

Rainfall return levels at El Cajon 2 E: the daily rain expected about once in a given number of years
Expected about once in	A day with at least	Note
2 years	39.4 mm (1.6 in)
5 years	58.1 mm (2.3 in)
10 years	72.8 mm (2.9 in)
25 years	94.2 mm (3.7 in)
50 years	112.5 mm (4.4 in)
100 years	133.0 mm (5.2 in)	Longer than the 51 years of record

The levels come from a generalised extreme value (GEV) distribution fitted by L-moments to the wettest-day total of each year, 51 years of values from 1899 to 1958.

A return level is an estimate. It is least reliable for the long periods, 50 and 100 years, and for any period longer than the record behind the fit, where the fit has to reach past the largest day actually observed. It is not a forecast.

The largest wettest-day totals in the fit: 130.8 mm (5.1 in) in 1927; 104.1 mm (4.1 in) in 1921; 103.1 mm (4.1 in) in 1937.

Station Changes

No change in the annual mean temperature of this station was found against its neighbours.

Download the Data

Data for El Cajon 2 E standing records by year: CSV or JSON. Field meanings are on the data page.
Data for El Cajon 2 E threshold days by year: CSV or JSON. Field meanings are on the data page.

Source: NOAA National Centers for Environmental Information, Global Historical Climatology Network Daily (GHCN-Daily). Records are computed by World Extreme Weather Monitor and are not official NOAA products. (US Government open data (NOAA NCEI)) Data as of 2026-10-17 (17 October 2026). Records are computed by this site and are not official.

Data as of 2025-12-31. Last revised 31 December 2025 (2025-12-31).