STEPHAN 2 NW, SD

Average of Minimum Temperature (Degrees Fahrenheit)

(397992)

File last updated on April 20, 2024
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)JANFEBMARAPRMAYJUNJULAUGSEPOCTNOVDECANN
1903-----z-----z-----z-----z-----z-----z-----z-----z41.57g32.68 17.14b4.48 18.10i
1904-1.68 -4.04a16.35 26.87 44.23a54.00 55.06 54.48 45.30c37.73a22.70 7.13 29.85
1905-3.57a-2.71 25.74 30.17a39.80a55.24m58.19 60.43a48.47 31.58 24.03 13.03 29.56a
19067.06 7.07 11.00 34.77 43.40a51.43 55.74 56.74 49.50 34.65 20.00a8.87 31.69
1907-6.93b8.96 22.58 24.45a34.83a51.47 56.65h54.83a43.21a31.45 20.50 12.47a27.07a
19088.53a11.52 16.77 32.03 40.87 51.17 56.39 50.81 49.24a34.55b19.80 9.16 31.74
19091.35 6.79 19.68 24.83a40.10 54.70 58.13 60.63a46.37 34.48 21.17 0.33a30.71
19100.26 -4.14 30.32 32.47 38.32 53.00 57.48 51.23 45.30 35.23 -----z6.16 31.42a
19110.19 4.18 22.58 29.60 44.90a57.57 55.52 54.39 47.17 34.48 11.86b6.82c30.77
1912-8.90 8.69 10.84 31.87 44.35 50.00 57.83b54.39 43.80 32.52 19.73 11.52 29.72
1913-0.52 0.89a10.26 32.20 40.97 56.47 57.65 60.30a48.07 30.48 24.27 13.39 31.20
191411.07a-2.71 18.29 32.43 45.65 54.53 60.94 56.50a51.87 36.03 22.90 -0.94 32.21
19151.00 14.64 10.71 39.53 40.58 49.83 54.42 50.74 45.33 36.40a22.87 13.06 31.59
1916-9.10 4.52 18.97 29.97 38.68 49.13 63.03 58.52j43.37 30.97a17.33f-3.90 26.56b
1917-2.83a-4.96a15.84 30.33 38.03a47.47 58.23 51.83a47.47 23.68 28.07 -0.27a27.74
1918-6.45 3.96 24.10 27.57 41.25k-----z-----z-----z-----z-----z-----z-----z12.29h
1919-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z
1920-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z
1921-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z
1922-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z
1923-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z
1924-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z
1925-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z
1926-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z
1927-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z
1928-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z
1929-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z
1930-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z
1931-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z
1932-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z
1933-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z
1934-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z
1935-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z
1936-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z
1937-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z
1938-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z
1939-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z
1940-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z
1941-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z
1942-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z
1943-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z
1944-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z
1945-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z
1946-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z
1947-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z
1948-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z
1949-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z
1950-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z
1951-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z
1952-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z
1953-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z
1954-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z
1955-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z
1956-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z
1957-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z
1958-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z
1959-----z-----z-----z-----z-----z58.74c56.10 56.72b43.00b28.04c12.69a18.13 39.06e
19602.20a1.75a4.81d31.97 38.54c50.20 56.87 54.07b45.50 31.67a15.28e2.93c27.98
19610.93c10.46b23.39 22.39g39.83a51.93 54.72b56.23a40.93 32.19 16.46d2.32 29.95a
1962-3.37d3.61 11.43a26.96e45.90 52.33 55.77 51.69e40.48i32.32 21.73 8.55 27.90a
1963-6.27a8.69b20.16 31.97 40.39 55.30 60.52 56.06 47.83 -----z-----z0.26d31.49b
19646.71 11.83 9.70a33.00 43.61 51.70 61.10a51.10 39.30c28.90 13.90 -1.61 29.10
1965-3.06 2.39 6.52 30.67 41.35 52.17 57.13 53.65 37.48a34.42 18.10 17.43a29.02
1966-6.42 1.39 24.00b25.50 36.70a51.23 63.00 51.90 43.83 30.26 14.90a6.30a28.55
19674.00 -0.04a15.29 29.97 36.71 51.37 54.26 50.55 46.73 33.97 19.47 6.97 29.10
19681.40a6.62 22.06 30.03 37.33a-----z58.03a55.97 46.00a-----z20.93b3.74 28.21b
1969-0.73a10.93 9.83a34.70 44.16 46.87 58.77 58.39 47.40 29.33d22.27 11.55 31.12
1970-3.23a10.37a14.29 29.90 43.90 54.41a57.97 57.83a46.10 30.70a19.41a2.33a30.33
1971-3.23 6.18 17.90 32.33 39.61 57.13 52.94 57.35 46.00 36.58 20.57 4.42 30.65
1972-5.33a1.69 18.65 32.43 -----z52.33 54.45 56.81 46.13 32.29 -----z3.42 29.29b
19737.83a-----z-----z30.37 40.00 52.30 57.58 59.17a45.53 38.97a-----z6.17a37.55c
19744.06 11.21 20.39 33.10 40.03b50.23 62.39 53.35 41.53 36.03 19.90 12.37d32.05
19757.72b4.04a12.76b31.03 44.19 53.13 60.87 58.32 44.07 34.97 19.63 9.55 31.69
19764.55 17.97 18.71 35.53 39.48 52.80 60.74 60.13 45.03 28.53a11.64b4.87a31.67
1977-6.74 15.07 23.77 37.37 50.39 54.37 59.63a51.97b48.07 34.42 17.33 5.10a32.56
1978-11.52 -1.85a16.23a32.60 42.86b50.40 56.71 53.34b50.13 31.65 15.33 3.40a28.27
1979-9.16 -5.07 19.13 29.93 39.19 52.17a57.94 55.45 47.86a30.57h16.36b14.06 28.90a
19801.77 7.93a15.74 31.25b42.72b53.10 58.65 56.25c44.64b30.38b24.14a10.03 31.38
198110.07a11.46 19.48b34.62a38.81d49.43b57.76b54.19 45.75b33.77a22.63 7.13 32.09
1982-11.67a4.48a16.43a25.50 45.97 46.87 56.90 55.20a43.24a33.39 15.40 9.65 28.45
19839.94 15.36 21.23a25.47 33.45 52.07 61.06 61.06 39.37 33.37a21.55a-9.17a30.40
19846.55 18.34 15.61 31.27 39.03 52.55a56.17a56.48 38.97 31.90 16.23 -0.67a30.20
1985-4.39c-0.74a18.13 30.31a43.63a43.55a50.14b47.80a45.47 32.00a8.34a1.86b26.34
198610.26 6.56c26.90a31.34a43.46c54.00a58.07a50.52 44.21b37.23a18.97a13.39 32.91
198713.30a22.11 23.90a36.10 49.97 55.50 62.06 55.43a47.07 30.48 28.63 15.33a36.66
1988-1.24b5.62 22.26 30.23 49.58 61.30 61.03 59.48 46.10a32.65 23.23 8.93a33.27
19898.74 -2.81a17.55 34.23 43.03 51.50 62.39 58.87 47.27 35.06 20.53 1.48 31.49
199018.13 14.29 24.61 29.79a42.61 53.50 58.77 58.55b49.73 32.50a22.27 3.00 33.98
1991-0.18c17.68 22.48 35.43 48.58 58.59a59.19 59.06 48.27 32.37a17.13 15.97b34.55
199215.10 20.66 25.42 30.07 41.74 52.57 54.30a53.61 45.93a33.90 22.53 6.90a33.56
19933.00 5.89 22.19 32.10 42.03 52.28a57.26 56.72b41.30 31.00 17.77 12.45 31.17
1994-2.00 0.89 23.74 30.97 46.42 55.77 56.00 55.67a50.33 39.35 22.53 11.77 32.62
19958.55 15.25 19.10a28.17 42.39 55.27 58.68 60.87 47.66a36.00 19.53 13.65 33.76
1996-2.27a11.28 11.93a28.77 45.10b54.57 55.35 56.55 48.17 34.61 14.31a0.10a29.87
19970.33a10.68 19.39 28.83 41.30a55.47 61.10 58.23a49.90a36.93b19.00a18.87 33.34
19988.24b24.11a17.53a34.14a46.07a50.82b60.77 60.39 52.90 38.25c26.43 11.29 35.91
19995.00a22.36 24.52 32.97a44.42 54.27 60.57a57.81 -----z-----z25.29b14.55b34.17b
20006.67a14.31 24.00 30.60 44.42 50.47 60.03 59.68 45.17 35.71 14.07 -1.13a32.00
20018.19 0.25 16.10 33.10 45.00a53.37 62.74 57.97 48.70 31.71 26.27 12.71 33.01
200210.81 15.46 10.71 30.43 37.90 56.03 63.03 57.13 46.34a27.87 20.30 13.68 32.48
20034.55 5.04 17.10 33.77 42.32 51.77 59.19 57.97 44.10 35.69e16.03 16.82c32.03
20042.87 7.96b25.71 30.07 42.87 48.27 57.03a52.43a49.73 34.07d22.97 12.18c32.18
20054.86b14.68 20.90b33.70 40.87 57.67 59.32 57.45 50.45a33.84 21.43 9.82c33.75
200621.70a9.24c18.89c37.74g42.94 54.37 62.97 59.39 43.73 28.77 17.83 12.26 33.83a
20076.13a2.14 25.29 29.73 47.03 56.38d61.61 59.23 46.07a35.39 20.67 5.90 32.97
20081.63a3.92c17.16 26.90a40.55 51.40 59.03 58.48 45.33 33.19 22.63 1.03 30.11
20090.61 11.14 16.13 29.69a38.50c52.30 54.29 53.26 48.40 29.48 23.37 9.00x32.47a
2010-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z
2011-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z
2012-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z
2013-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z
2014-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z
Period of Record Statistics
MEAN2.08 7.58 18.49 31.08 42.09 52.81 58.31 55.99 45.99 33.11 19.72 7.59 31.40
S.D.7.05 7.23 5.34 3.00 3.53 3.10 2.82 3.17 3.11 2.97 4.11 6.01 2.07
SKEW0.27 0.23 -0.36 0.03 0.14 -0.06 -0.23 -0.40 -0.47 -0.35 -0.31 -0.28 0.00
MAX21.70 24.11 30.32 39.53 50.39 61.30 63.03 61.06 52.90 39.35 28.63 18.87 36.66
MIN-11.67 -5.07 4.81 24.45 33.45 43.55 50.14 47.80 37.48 23.68 8.34 -9.17 26.34
YRS65 64 64 63 63 63 64 64 63 62 61 65 50