GRAND CANYON NATL PARK, ARIZONA

Monthly Average Temperature (Degrees Fahrenheit)

(023595)

File last updated on Apr 3, 2013
*** Note *** Provisional Data *** After Year/Month 197707
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
1957 ----- z ----- z ----- z ----- z ----- z ----- z ----- z 63.58 m 60.02 47.26 33.85 36.02 44.29
1958 31.11 36.32 33.00 42.68 57.06 66.57 g 69.71 69.06 59.98 51.27 38.22 37.42 47.80
1959 32.08 30.59 38.94 48.43 53.35 65.45 72.12 a 65.56 59.77 51.21 39.07 32.97 49.13
1960 25.47 27.40 40.52 47.87 54.97 66.20 71.00 69.84 62.47 47.47 39.32 30.85 48.61
1961 32.89 35.89 37.89 45.67 53.85 67.27 70.19 65.71 57.03 48.56 36.43 28.34 48.31
1962 30.85 34.16 33.39 50.41 a 51.98 61.93 67.26 69.13 62.53 51.77 43.05 33.23 49.14
1963 27.65 38.57 37.53 42.67 56.90 a 61.02 71.73 66.26 62.32 54.32 41.23 33.52 49.48
1964 28.02 29.59 33.92 43.27 53.05 61.93 71.11 66.42 60.43 54.52 35.85 32.21 47.53
1965 34.19 32.77 35.82 41.93 49.98 56.98 66.52 66.05 55.87 52.63 40.47 31.66 47.07
1966 27.52 a 26.75 41.16 47.43 57.50 64.15 69.69 69.53 62.18 50.45 41.35 31.34 49.09
1967 31.87 36.61 42.15 41.97 52.65 59.25 69.76 67.85 d 61.43 c 52.66 b 42.55 25.98 48.73
1968 31.02 38.10 38.97 41.38 ----- z 63.30 67.13 61.73 57.65 50.45 37.65 28.40 46.89
1969 33.79 30.14 32.63 45.05 54.56 59.53 66.69 68.77 60.10 44.65 37.65 34.15 47.31
1970 30.81 37.05 35.10 39.35 53.71 61.83 67.02 67.55 58.60 47.37 42.48 31.56 47.70
1971 32.92 32.95 38.05 44.38 50.42 63.50 70.42 66.84 61.22 c 44.67 a 36.18 27.32 47.41
1972 32.48 37.29 45.27 46.48 a 54.61 60.42 70.88 g 66.11 d 58.81 f 47.08 a 34.60 28.08 45.24
1973 27.27 32.46 32.29 41.67 a 54.90 a 63.12 70.05 c 66.00 i 60.48 a 50.33 a 39.07 a 35.10 46.07
1974 29.28 b 32.76 a 42.37 44.43 56.89 67.70 67.24 65.34 c 60.81 a 56.75 z 36.67 z 29.34 49.62
1975 31.31 30.73 34.92 38.20 50.11 62.00 e 69.18 f 66.07 b 61.14 e 49.19 j 41.23 h 35.66 i 46.81
1976 34.58 m 37.12 c 36.23 43.50 ----- z 62.17 a 66.82 65.29 58.57 a 48.02 40.82 34.03 49.26
1977 29.76 37.05 35.83 b 47.53 a 48.65 63.25 67.13 ----- z ----- z ----- z ----- z ----- z 47.03
Period of Record Statistics
MEAN 30.54 33.72 37.30 44.22 53.62 62.68 68.98 66.84 60.14 49.71 38.88 31.66 48.29
S.D. 2.44 3.63 3.65 3.16 2.64 2.73 1.96 2.00 1.88 2.98 2.78 3.12 0.85
SKEW -0.44 -0.40 0.46 0.07 -0.25 0.04 0.10 -0.51 -0.69 -0.10 -0.18 -0.07 -0.12
MAX 34.19 38.57 45.27 50.41 57.50 67.70 72.12 69.84 62.53 54.52 43.05 37.42 49.48
MIN 25.47 26.75 32.29 38.20 48.65 56.98 66.52 61.73 55.87 44.65 33.85 25.98 47.07
NO YRS 19 20 20 20 18 19 18 18 19 18 18 19 12