UMATILLA, OREGON

Monthly Average Minimum Temperature (Degrees Fahrenheit)

(358734)

File last updated on Apr 4, 2013
*** Note *** Provisional Data *** After Year/Month 196510
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
1892 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
1893 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
1894 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
1895 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
1896 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
1897 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
1898 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
1899 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
1900 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
1901 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
1902 ----- z ----- z ----- z ----- z 50.52 53.31 a 57.81 59.32 49.27 42.67 a 35.77 29.93 a 47.32
1903 31.59 b 24.29 33.42 37.76 a 47.16 58.43 59.23 59.33 a 49.97 41.23 36.73 29.97 42.42
1904 30.94 31.31 35.90 44.03 47.26 53.90 62.35 59.97 50.50 43.74 36.07 31.55 43.96
1905 29.29 26.50 b 38.26 42.17 47.90 56.27 63.13 60.35 52.30 39.03 27.87 30.10 42.76
1906 29.84 35.79 32.68 43.00 ----- z ----- z 68.96 d 61.32 52.67 44.77 36.56 e ----- z 45.07
1907 19.42 30.96 37.61 41.07 49.77 a 55.57 61.29 ----- z 50.13 45.58 33.90 32.39 41.61
1908 28.16 28.59 35.84 40.53 43.32 52.50 61.84 58.97 50.03 41.00 33.60 28.61 41.92
1909 16.10 33.82 35.19 38.90 46.68 54.24 a 56.83 b 53.19 52.17 42.67 p 36.00 24.71 x 42.31
1910 23.66 b 26.18 39.00 45.03 50.29 53.77 60.19 54.77 50.00 41.94 36.50 33.00 42.86
1911 26.71 26.11 33.87 37.97 46.10 56.13 62.39 58.00 49.50 37.32 31.90 27.77 41.15
1912 24.06 33.93 33.68 42.87 49.42 57.13 60.19 56.97 46.73 38.48 35.30 28.90 42.31
1913 23.74 22.29 34.19 41.47 46.81 57.23 60.68 59.84 48.73 40.97 38.13 27.35 41.79
1914 33.23 30.57 36.26 41.83 48.74 54.73 61.00 58.87 48.97 43.26 35.07 20.87 42.78
1915 26.61 33.50 37.84 44.23 50.39 55.10 60.97 62.84 49.43 43.77 35.20 29.55 44.12
1916 11.73 a 27.17 38.13 41.30 44.77 52.03 57.06 56.77 49.80 35.97 28.60 25.39 39.06
1917 25.29 29.21 31.10 40.47 47.13 52.50 60.74 58.35 52.90 41.19 35.37 36.90 42.60
1918 33.06 28.82 35.61 39.13 45.58 57.93 60.81 57.84 54.00 45.71 33.63 31.81 43.66
1919 24.26 31.32 36.45 40.80 47.84 51.33 59.58 59.58 49.10 37.68 31.37 13.65 40.25
1920 25.52 28.62 36.71 39.80 44.23 53.00 61.32 58.32 51.07 41.39 31.13 31.71 41.90
1921 30.16 33.00 36.35 39.53 46.45 56.63 56.16 57.48 47.03 40.32 30.67 25.55 41.61
1922 13.87 25.29 31.94 37.33 43.55 56.80 59.29 58.77 49.53 41.74 33.43 22.03 a 39.47
1923 32.77 21.82 33.90 41.97 47.90 54.10 61.03 59.35 50.40 41.65 34.90 29.45 42.44
1924 21.26 34.55 33.87 38.73 48.90 54.93 60.23 57.03 48.90 a 42.35 36.03 18.45 41.27
1925 31.68 36.43 36.13 44.23 49.94 56.03 60.26 57.10 50.57 40.40 a 31.37 35.39 44.13
1926 32.68 35.82 34.90 43.40 47.03 55.57 62.26 57.29 45.07 40.84 33.97 26.97 42.98
1927 23.03 33.79 31.81 37.07 45.65 54.87 58.87 57.74 49.47 39.35 37.17 23.03 40.99
1928 25.10 27.66 35.71 37.97 46.16 54.23 61.03 55.58 46.73 38.68 33.17 ----- z 42.00
1929 ----- z ----- z 33.80 a 37.10 a 44.97 49.67 56.87 57.35 45.17 41.22 v ----- z ----- z 46.42
1930 ----- z ----- z 31.48 39.13 46.81 50.11 c 59.13 57.90 50.20 37.87 30.39 b 28.71 43.17
1931 30.71 28.86 33.61 39.67 48.94 55.33 58.77 56.48 48.17 37.55 29.00 21.41 b 40.71
1932 25.48 24.83 37.19 40.80 45.94 53.77 56.06 56.26 45.90 39.50 e 35.53 21.60 a 40.24
1933 26.39 20.86 33.81 38.63 45.90 55.07 59.52 58.07 a 47.17 40.94 35.67 36.23 41.52
1934 32.71 33.68 37.90 46.97 a 51.65 55.47 59.32 57.45 49.03 43.65 38.27 33.03 44.93
1935 25.23 29.82 31.68 38.03 45.84 54.60 59.81 55.68 50.40 37.71 27.07 29.65 40.46
1936 32.00 13.76 33.68 44.17 51.55 57.10 60.87 58.55 46.10 37.06 21.40 29.06 40.44
1937 6.90 22.50 36.00 41.33 45.97 54.40 61.90 55.68 49.97 41.61 37.33 32.29 40.49
1938 30.58 29.50 33.71 39.63 45.42 54.90 61.52 55.48 53.20 40.71 28.90 27.45 41.75
1939 30.55 27.54 35.65 39.87 47.48 52.03 59.13 57.23 49.23 39.87 26.77 32.61 41.50
1940 26.48 33.52 36.48 41.50 46.71 54.70 60.87 55.17 m 53.60 43.06 28.57 26.97 41.13
1941 28.29 28.46 32.16 39.37 47.16 53.70 63.42 59.48 49.47 41.23 33.23 30.39 42.20
1942 18.68 29.00 29.19 40.17 46.55 51.87 59.45 58.29 46.03 39.13 33.77 30.71 40.24
1943 19.23 29.82 28.74 39.80 43.06 49.03 55.94 53.61 45.10 39.39 34.43 27.39 38.80
1944 24.42 27.76 28.00 37.90 44.81 51.50 56.68 53.10 48.20 40.13 32.53 28.45 39.46
1945 31.65 31.46 32.77 36.20 46.26 50.20 56.74 55.10 44.90 37.84 32.20 25.77 40.09
1946 26.00 28.19 a 33.32 36.83 44.68 51.37 55.65 53.77 46.60 35.55 27.47 27.39 38.90
1947 19.23 26.21 33.19 39.60 48.90 53.50 57.35 53.97 48.37 50.00 z 34.47 30.16 40.45
1948 ----- z ----- z ----- z ----- z ----- z ----- z 56.03 b 54.81 47.07 34.77 32.57 23.90 41.53
1949 7.16 25.68 34.39 40.03 49.94 51.60 60.94 59.13 47.97 31.87 34.40 28.61 39.31
1950 8.16 20.61 31.68 36.70 46.97 53.17 58.35 56.97 46.03 40.19 34.13 33.61 38.88
1951 27.71 26.14 28.94 34.33 43.87 50.77 58.03 55.39 45.63 40.29 30.60 23.61 38.78
1952 20.81 29.17 32.35 39.07 47.74 52.93 57.45 56.35 48.03 38.42 24.53 28.97 39.65
1953 36.06 30.75 36.12 g 40.90 46.10 51.47 57.29 58.68 49.63 39.19 34.87 33.06 43.45
1954 25.03 33.71 27.97 37.50 46.55 51.00 52.74 54.68 48.00 35.94 36.57 25.26 39.58
1955 27.61 25.96 28.45 37.27 45.55 53.67 57.71 54.65 49.07 41.13 27.69 a 26.77 39.63
1956 27.06 20.83 34.26 39.93 49.90 a 52.93 60.00 56.97 49.50 40.61 31.00 29.94 41.08
1957 10.16 26.96 36.29 40.90 52.29 56.63 58.16 56.16 50.50 41.77 29.07 a 31.48 40.87
1958 30.32 36.79 31.48 40.37 49.61 55.60 61.16 60.48 49.53 36.77 34.17 31.32 43.13
1959 27.65 30.36 34.06 39.80 44.81 54.60 58.19 54.43 a 50.03 39.87 25.17 26.58 40.46
1960 17.84 27.76 32.68 40.17 45.81 52.93 61.13 57.67 a 48.13 40.32 32.97 27.61 40.42
1961 30.45 36.61 36.58 40.83 47.19 57.20 61.23 62.26 46.57 37.74 24.87 29.32 42.57
1962 24.07 b 28.86 31.81 41.63 45.71 51.63 57.97 56.26 48.83 41.23 36.00 32.35 41.36
1963 19.03 31.79 32.81 40.47 47.03 54.87 56.39 57.48 52.73 42.81 36.17 28.42 41.67
1964 30.39 26.69 31.74 38.60 44.19 53.83 57.74 53.90 45.60 37.16 34.90 25.55 40.03
1965 31.29 31.96 28.45 41.70 45.65 53.73 59.13 59.23 44.04 e 41.04 e ----- z ----- z 43.62
Period of Record Statistics
MEAN 25.15 28.90 33.81 40.15 47.05 53.95 59.44 57.32 48.89 40.08 32.68 28.41 41.26
S.D. 6.88 4.55 2.75 2.36 2.14 2.15 2.46 2.19 2.31 2.64 3.75 4.27 1.55
SKEW -1.04 -0.58 -0.35 0.34 0.45 -0.13 0.51 0.11 0.06 -0.37 -0.87 -0.83 0.29
MAX 36.06 36.79 39.00 46.97 52.29 58.43 68.96 62.84 54.00 45.71 38.27 36.90 44.93
MIN 6.90 13.76 27.97 34.33 43.06 49.03 52.74 53.10 44.04 31.87 21.40 13.65 38.78
NO YRS 60 60 61 62 62 62 64 62 64 61 62 59 52