SPIRIT LAKE RANGER STN, WASHINGTON

Monthly Average Minimum Temperature (Degrees Fahrenheit)

(457919)

File last updated on Apr 4, 2013
*** Note *** Provisional Data *** After Year/Month 195608
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
1932 ----- z ----- z ----- z ----- z 31.68 ----- z ----- z ----- z 39.87 38.23 33.87 23.61 33.45
1933 23.52 18.33 a 27.48 b 28.23 32.03 33.96 b 37.68 45.03 39.60 36.90 32.73 31.10 32.22
1934 31.79 c 31.39 32.74 38.77 39.55 41.87 44.94 47.13 a 41.23 37.84 34.67 29.81 37.64
1935 24.06 27.56 a 24.06 27.53 31.45 36.63 46.42 44.32 42.90 35.16 26.00 30.63 a 33.06
1936 27.87 21.07 23.61 28.90 34.90 40.93 46.35 46.06 40.73 39.06 31.63 29.26 34.20
1937 12.23 22.36 29.90 a 29.73 32.29 ----- z ----- z ----- z ----- z ----- z 33.19 i 28.61 25.85
1938 27.06 25.82 27.74 30.55 a 32.48 39.20 47.43 a 43.45 45.10 37.29 29.20 28.55 34.49
1939 28.23 22.18 25.06 31.70 32.84 36.97 46.71 45.52 41.70 36.52 34.04 b 31.52 34.41
1940 26.68 29.86 29.84 32.10 37.26 42.83 47.61 46.35 45.10 39.52 29.10 29.61 36.32
1941 29.29 ----- z ----- z ----- z ----- z ----- z 49.35 47.58 41.50 37.42 33.53 27.97 38.09
1942 26.61 26.71 26.90 30.70 33.68 39.23 ----- z 48.90 42.77 37.84 30.10 28.45 33.81
1943 22.23 26.54 25.61 30.97 31.42 34.27 45.55 44.84 42.60 37.65 32.70 28.48 33.57
1944 25.42 24.86 25.00 30.23 32.71 41.00 48.00 46.03 43.60 40.33 a 31.50 27.87 34.71
1945 27.55 27.39 28.03 29.87 32.84 34.50 44.68 46.55 41.03 ----- z ----- z ----- z 34.72
1946 25.90 21.89 28.35 29.03 32.81 ----- z ----- z ----- z ----- z ----- z ----- z ----- z 27.60
1947 ----- z ----- z ----- z ----- z ----- z ----- z 44.71 ----- z ----- z ----- z ----- z ----- z 44.71
1948 ----- z ----- z ----- z ----- z ----- z ----- z ----- z 46.32 i ----- z ----- z ----- z ----- z 9999.00
1949 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 34.86 q 34.94 m 22.19 o 9999.00
1950 10.11 d 23.71 24.77 a 27.33 l 30.86 j 36.29 i 43.23 46.84 42.90 34.97 30.30 30.84 l 32.10
1951 23.35 23.82 23.58 27.97 33.10 39.20 44.19 41.13 40.63 34.29 28.90 17.42 e 31.47
1952 18.58 22.66 21.90 26.93 30.48 f 34.26 c 41.48 42.77 39.60 e 38.44 f 27.50 27.44 f 30.63
1953 30.94 26.21 27.23 28.80 e 32.35 36.57 43.55 43.39 42.53 m 36.22 d 31.28 e 29.63 l 33.65
1954 23.42 25.92 d 20.64 f 28.67 32.55 35.25 f 42.68 44.23 42.53 35.97 33.77 25.94 33.57
1955 23.94 23.82 20.81 25.47 30.13 34.90 40.23 42.77 38.80 35.55 21.30 g 21.78 h 31.64
1956 22.87 19.24 22.74 28.03 33.06 34.87 40.75 g 45.00 d ----- z ----- z ----- z ----- z 29.40
Period of Record Statistics
MEAN 24.36 24.57 26.07 29.69 33.11 37.57 44.71 45.15 41.79 37.10 31.22 27.92 34.21
S.D. 5.36 3.32 3.03 2.76 2.14 3.04 2.94 1.93 1.81 1.66 2.51 3.51 1.82
SKEW -1.30 0.08 0.28 1.77 1.77 0.31 -0.68 -0.14 0.27 0.17 -0.45 -1.93 0.38
MAX 31.79 31.39 32.74 38.77 39.55 42.83 49.35 48.90 45.10 40.33 34.67 31.52 37.64
MIN 10.11 18.33 20.81 25.47 30.13 33.96 37.68 41.13 38.80 34.29 26.00 17.42 31.47
NO YRS 21 20 19 19 19 16 18 19 18 17 17 15 10