CLARKSTON HEIGHTS, WASHINGTON

Monthly Average Minimum Temperature (Degrees Fahrenheit)

(451474)

File last updated on Apr 4, 2013
*** Note *** Provisional Data *** After Year/Month 195912
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
1937 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 35.57 31.74 33.65
1938 30.61 31.50 34.87 39.13 43.19 52.03 57.42 49.68 50.80 41.35 27.97 26.97 40.46
1939 30.10 26.00 33.26 38.80 43.48 47.77 55.10 51.74 44.63 37.32 29.03 33.03 39.19
1940 26.87 33.34 35.39 39.97 44.65 50.07 55.84 50.52 51.50 43.23 28.17 27.52 40.59
1941 28.39 31.21 34.03 38.77 45.81 51.83 56.77 54.42 45.40 38.81 32.80 28.55 40.57
1942 16.52 27.93 31.32 38.43 43.10 46.27 54.32 52.55 44.37 37.90 31.80 29.71 37.85
1943 20.45 29.50 28.42 40.07 40.32 46.07 53.61 50.48 45.40 40.97 31.90 27.71 37.91
1944 24.48 27.83 30.19 38.77 45.06 49.83 54.16 50.55 47.73 39.35 32.23 26.48 38.89
1945 30.71 32.46 33.13 37.53 45.06 47.90 53.84 53.29 44.57 39.41 b 31.87 26.58 39.70
1946 28.58 29.36 34.42 37.90 42.90 48.93 54.13 51.81 45.43 33.87 31.00 29.74 39.01
1947 22.39 29.89 34.55 38.40 48.16 50.07 53.65 50.84 48.17 43.55 34.07 32.45 40.51
1948 ----- z ----- z ----- z ----- z ----- z ----- z 51.84 50.94 44.23 35.58 31.73 21.68 39.33
1949 6.65 26.32 34.00 39.37 46.90 48.03 52.39 52.45 46.30 33.48 35.83 28.77 37.54
1950 10.74 26.96 33.68 36.80 41.10 50.37 51.45 51.68 43.87 42.13 34.90 35.61 38.27
1951 26.97 28.75 29.87 35.13 43.45 46.77 53.13 50.77 43.63 38.71 31.10 24.16 37.70
1952 22.74 29.69 32.23 a 37.97 44.97 49.87 52.48 51.61 45.53 36.61 25.53 29.48 38.23
1953 38.00 31.86 33.03 38.67 40.81 45.77 50.94 53.03 44.50 37.13 34.70 31.52 40.00
1954 26.06 33.32 29.52 37.83 43.71 46.13 52.61 50.00 44.20 35.35 35.50 24.71 38.25
1955 27.23 25.89 26.71 35.07 41.74 50.73 53.90 49.87 44.47 40.16 27.67 25.39 37.40
1956 26.68 21.14 31.94 39.53 46.29 47.97 54.03 51.26 44.93 38.32 30.57 28.65 38.44
1957 13.45 28.39 33.68 38.47 48.55 50.87 52.84 51.00 45.47 41.16 29.33 31.71 38.74
1958 29.55 36.04 30.45 37.90 47.48 53.97 56.35 55.48 45.97 37.74 33.17 32.90 41.42
1959 28.58 30.07 32.97 37.63 40.58 49.57 52.68 50.45 47.90 38.65 26.33 27.71 38.59
Period of Record Statistics
MEAN 24.56 29.40 32.27 38.20 44.16 49.09 53.79 51.56 45.86 38.67 31.42 28.82 39.01
S.D. 7.44 3.26 2.31 1.31 2.47 2.22 1.69 1.48 2.12 2.75 3.00 3.30 1.18
SKEW -0.86 -0.34 -0.79 -1.03 0.12 0.21 0.47 1.07 1.45 -0.07 -0.28 -0.04 0.45
MAX 38.00 36.04 35.39 40.07 48.55 53.97 57.42 55.48 51.50 43.55 35.83 35.61 41.42
MIN 6.65 21.14 26.71 35.07 40.32 45.77 50.94 49.68 43.63 33.48 25.53 21.68 37.40
NO YRS 21 21 21 21 21 21 22 22 22 22 23 23 21