EL CAJON YALE RANCH, CALIFORNIA

Monthly Extreme Minimum Temperature (Degrees Fahrenheit)

(042705)

File last updated on Apr 4, 2013
*** Note *** Provisional Data *** After Year/Month 195910
a = 1 day missing, b = 2 days missing, c = 3 days, ..etc..,
z = 26 or more days missing, A = Accumulations present
Long-term means based on columns; thus, the monthly row may not
sum (or average) to the long-term annual value.
MAXIMUM ALLOWABLE NUMBER OF MISSING DAYS : 5
Individual Months not used for annual or monthly statistics if more than 5 days are missing.
Individual Years not used for annual statistics if any month in that year has more than 5 days missing.
YEAR(S) JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC ANN
1899 ----- z 25.00 30.00 36.00 36.00 48.00 45.00 45.00 42.00 37.00 35.00 28.00 25.00
1900 33.00 31.00 35.00 34.00 38.00 45.00 50.00 46.00 37.00 32.00 33.00 30.00 30.00
1901 27.00 34.00 q ----- z ----- z 46.00 m ----- z ----- z 47.00 k 44.00 40.00 34.00 24.00 24.00
1902 28.00 30.00 33.00 a 36.00 41.00 41.00 48.00 49.00 45.00 42.00 34.00 30.00 28.00
1903 31.00 21.00 34.00 36.00 39.00 46.00 47.00 52.00 47.00 40.00 36.00 29.00 21.00
1904 28.00 30.00 32.00 ----- z 39.00 51.00 48.00 64.00 56.00 51.00 51.00 32.00 28.00
1905 34.00 30.00 33.00 34.00 41.00 44.00 52.00 50.00 42.00 40.00 32.00 22.00 22.00
1906 25.00 38.00 ----- z 36.00 42.00 45.00 56.00 47.00 47.00 34.00 25.00 32.00 25.00
1907 29.00 34.00 30.00 37.00 42.00 42.00 48.00 50.00 42.00 45.00 33.00 33.00 29.00
1908 31.00 29.00 29.00 35.00 34.00 42.00 47.00 52.00 43.00 33.00 30.00 28.00 28.00
1909 34.00 33.00 33.00 36.00 43.00 45.00 47.00 50.00 43.00 39.00 32.00 27.00 27.00
1910 26.00 26.00 36.00 38.00 38.00 43.00 47.00 50.00 45.00 41.00 33.00 29.00 26.00
1911 30.00 z ----- z ----- z 31.00 40.00 j 43.00 f 52.00 h 49.00 e 49.00 m 23.00 c 26.00 a 25.00 d 23.00
1912 30.00 h 27.00 h 38.00 a 39.00 e 37.00 g 46.00 a 52.00 48.00 44.00 b 36.00 34.00 h 24.00 g 24.00
1913 19.00 31.00 29.00 36.00 41.00 47.00 52.00 45.00 43.00 41.00 37.00 32.00 19.00
1914 31.00 33.00 37.00 39.00 41.00 46.00 51.00 53.00 45.00 44.00 36.00 30.00 30.00
1915 27.00 34.00 38.00 41.00 39.00 49.00 49.00 51.00 42.00 36.00 29.00 29.00 27.00
1916 29.00 33.00 37.00 37.00 41.00 43.00 50.00 50.00 48.00 34.00 25.00 24.00 24.00
1917 28.00 29.00 29.00 34.00 43.00 46.00 53.00 52.00 46.00 37.00 34.00 30.00 28.00
1918 27.00 30.00 34.00 39.00 43.00 49.00 54.00 50.00 48.00 40.00 29.00 26.00 26.00
1919 24.00 30.00 29.00 39.00 44.00 45.00 54.00 52.00 48.00 35.00 30.00 28.00 24.00
1920 26.00 34.00 32.00 37.00 42.00 48.00 48.00 49.00 a 45.00 36.00 33.00 28.00 26.00
1921 27.00 27.00 33.00 34.00 41.00 45.00 55.00 55.00 46.00 41.00 28.00 32.00 27.00
1922 22.00 26.00 27.00 33.00 38.00 45.00 51.00 55.00 44.00 36.00 31.00 33.00 22.00
1923 27.00 28.00 29.00 40.00 41.00 43.00 47.00 50.00 40.00 37.00 31.00 29.00 27.00
1924 27.00 30.00 33.00 36.00 45.00 48.00 47.00 49.00 42.00 34.00 31.00 23.00 23.00
1925 26.00 34.00 33.00 36.00 41.00 45.00 55.00 49.00 41.00 40.00 29.00 31.00 26.00
1926 23.00 34.00 38.00 46.00 43.00 49.00 50.00 50.00 41.00 39.00 34.00 26.00 23.00
1927 28.00 30.00 32.00 35.00 38.00 45.00 52.00 51.00 46.00 39.00 28.00 26.00 26.00
1928 25.00 24.00 33.00 30.00 46.00 47.00 50.00 44.00 46.00 39.00 28.00 26.00 24.00
1929 27.00 24.00 31.00 35.00 39.00 44.00 49.00 g 54.00 45.00 34.00 30.00 27.00 24.00
1930 30.00 34.00 32.00 40.00 42.00 45.00 50.00 52.00 47.00 38.00 30.00 22.00 22.00
1931 26.00 31.00 28.00 40.00 45.00 49.00 57.00 58.00 46.00 42.00 26.00 29.00 26.00
1932 28.00 28.00 32.00 33.00 40.00 32.00 44.00 48.00 48.00 35.00 31.00 27.00 27.00
1933 20.00 27.00 32.00 34.00 37.00 40.00 52.00 45.00 42.00 40.00 29.00 28.00 20.00
1934 28.00 31.00 33.00 33.00 43.00 44.00 48.00 53.00 42.00 40.00 31.00 28.00 28.00
1935 28.00 27.00 30.00 37.00 41.00 48.00 48.00 54.00 46.00 33.00 28.00 26.00 26.00
1936 27.00 30.00 34.00 35.00 42.00 46.00 50.00 50.00 45.00 42.00 31.00 29.00 27.00
1937 24.00 29.00 36.00 36.00 42.00 47.00 54.00 52.00 50.00 43.00 34.00 33.00 24.00
1938 30.00 33.00 37.00 35.00 40.00 49.00 52.00 49.00 48.00 38.00 25.00 34.00 25.00
1939 32.00 28.00 28.00 37.00 43.00 43.00 52.00 53.00 50.00 39.00 34.00 33.00 28.00
1940 28.00 30.00 30.00 45.00 44.00 50.00 47.00 49.00 47.00 42.00 30.00 34.00 28.00
1941 32.00 36.00 38.00 37.00 a 45.00 46.00 47.00 50.00 42.00 42.00 29.00 31.00 29.00
1942 30.00 27.00 29.00 38.00 40.00 a 45.00 51.00 48.00 45.00 40.00 29.00 28.00 27.00
1943 27.00 32.00 39.00 41.00 41.00 44.00 50.00 49.00 45.00 41.00 a 32.00 31.00 27.00
1944 27.00 28.00 30.00 35.00 44.00 44.00 48.00 44.00 42.00 40.00 32.00 29.00 27.00
1945 29.00 29.00 32.00 29.00 40.00 50.00 53.00 a 52.00 43.00 38.00 32.00 28.00 28.00
1946 26.00 25.00 32.00 38.00 42.00 45.00 52.00 52.00 47.00 39.00 31.00 30.00 25.00
1947 22.00 31.00 35.00 37.00 45.00 49.00 48.00 48.00 50.00 41.00 28.00 25.00 22.00
1948 ----- z ----- z ----- z ----- z ----- z ----- z 47.00 a 48.00 43.00 38.00 29.00 f 27.00 27.00
1949 22.00 27.00 34.00 35.00 42.00 a 47.00 49.00 48.00 46.00 34.00 d 37.00 23.00 22.00
1950 22.00 29.00 29.00 37.00 36.00 41.00 49.00 47.00 46.00 41.00 30.00 33.00 22.00
1951 26.00 30.00 31.00 40.00 41.00 49.00 50.00 50.00 46.00 42.00 33.00 25.00 25.00
1952 25.00 31.00 32.00 39.00 43.00 43.00 48.00 53.00 46.00 44.00 33.00 30.00 25.00
1953 30.00 24.00 30.00 33.00 38.00 45.00 51.00 51.00 48.00 39.00 33.00 24.00 24.00
1954 20.00 34.00 29.00 40.00 47.00 x 43.00 a 51.00 a 46.00 a 43.00 35.00 35.00 21.00 20.00
1955 29.00 24.00 28.00 31.00 39.00 44.00 49.00 48.00 47.00 37.00 31.00 28.00 24.00
1956 28.00 k 26.00 27.00 35.00 41.00 45.00 b 49.00 47.00 47.00 37.00 26.00 26.00 26.00
1957 30.00 30.00 29.00 35.00 43.00 49.00 49.00 50.00 48.00 a 41.00 31.00 28.00 28.00
1958 27.00 36.00 31.00 38.00 43.00 49.00 49.00 56.00 46.00 42.00 26.00 27.00 26.00
1959 28.00 28.00 34.00 41.00 42.00 47.00 49.00 49.00 53.00 45.00 h ----- z ----- z 28.00
Period of Record Statistics
MEAN 27.18 29.70 32.25 36.53 41.12 45.52 49.97 50.17 45.28 38.63 31.28 28.24 25.50
S.D. 3.34 3.49 3.13 3.21 2.50 3.11 2.73 3.42 3.15 4.01 4.02 3.19 2.60
SKEW -0.32 -0.04 0.39 0.36 -0.49 -1.31 0.44 1.11 0.50 -0.61 1.89 -0.17 -0.49
MAX 34.00 38.00 39.00 46.00 46.00 51.00 57.00 64.00 56.00 51.00 51.00 34.00 30.00
MIN 19.00 21.00 27.00 29.00 34.00 32.00 44.00 44.00 37.00 23.00 25.00 21.00 19.00
NO YRS 56 57 57 58 56 58 58 60 60 60 58 59 50