WATERTOWN REGIONAL AP, SD

Average of Minimum Temperature (Degrees Fahrenheit)

(398932)

File last updated on March 28, 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
1893-6.97 -6.82 8.87 27.40 40.47a51.08r-----z-----z-----z-----z14.03 2.87 11.41e
1894-4.50a1.07 21.00 35.52a42.71 59.32b-----z-----z-----z-----z10.53o14.89c24.29e
1895-4.68f-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z
1896-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z
1897-----z-----z8.86c31.00 38.29 46.41a55.61 49.00 48.90 34.90 12.77 5.14b33.09b
18987.97 5.32 16.52 29.47 41.32 49.53 53.42 51.58 44.20 29.70a13.20 2.17a28.70
1899-0.26 -7.11a4.58 26.63 41.81 52.33 51.61 56.10 37.13 32.00 28.93 5.10 27.40
19006.32 -6.89 13.94 35.60 43.42 50.73 54.84 60.97 46.07a41.29 15.90 11.66b31.15
19014.35 0.29 18.48 -----z-----z-----z-----z-----z-----z-----z-----z-----z7.71i
19024.65e4.46b-----z28.33 43.96c47.00a56.00 53.39 40.45a33.63a21.71b0.74 30.39a
19031.45 -2.89 19.48 30.83a42.90 49.10 54.75c53.39c42.48a33.46c18.23d-0.13a28.59
1904-4.42 -6.93b16.07d28.30c40.45 50.87 51.47a51.33a44.25b36.87 21.43b5.84 27.96
1905-5.96d-3.71 25.06 30.13 38.23a51.12d52.74 56.10a48.50 31.40a21.75b11.23 29.72
19069.30d5.19b12.31b35.52a43.81 50.53 52.90 55.71 49.27 33.32 20.00a6.97 31.24
1907-7.47a7.56a20.37a24.85c33.93b54.09g56.07c53.48b41.76a29.00g17.77 10.67a25.90b
19087.23 6.92c20.62b33.21a42.48 51.58d56.34b52.48b50.34a35.39 25.24a11.29 32.76
19092.42 7.82 20.68 25.20 41.87 54.87 58.71 61.24f47.33 34.48 22.30 1.52 28.84a
19103.80a-2.04 31.84 34.77 38.71 53.07 57.55 53.26 46.30 37.90 -----z8.23a33.04a
1911-3.52 7.36 21.76f31.57 45.45 56.27 53.06 51.77 45.27 33.45 8.03 9.81 30.77a
1912-14.00a3.82a5.77 31.80 43.32 49.67 56.52 52.06 41.13 31.71 21.41a6.39 27.47
1913-2.90 -1.67a7.83a32.20 40.94 54.53 54.77 57.06 45.80 27.81 25.47 12.97 29.57
19146.87 -6.75 16.55 29.73 44.26 54.20 59.35 52.19 44.90 37.10a16.59h-3.16 30.48a
1915-2.61 13.39 15.26 38.90 40.26 48.23 53.61 48.65 44.90 34.77 22.43 8.53a30.53
1916-11.23 -4.34 15.26 29.17 40.87 48.63 65.03 56.29 43.33 27.87 16.80 -4.97 26.89
1917-5.16 -8.64 13.87 29.40 37.87 49.00 57.47a51.50a45.83 23.81 25.53 -4.58 26.32
1918-8.67a0.25 22.94 25.83a41.84 52.97 53.68 56.74 39.80 38.32 24.86b15.39 30.33
191914.73a8.00a18.47a34.07 43.81 58.97 61.10 55.03 49.20 30.19 14.57 4.29 32.70
19200.97 7.34 17.77 25.60 43.77 55.00a57.39 52.48 50.80 40.35 22.03a11.94 32.12
192111.19 13.86 20.81 34.23 44.74 59.20 60.58 56.16 48.10 36.10 15.17 12.26 34.37
19220.74 -6.04a21.39 33.97 47.39 55.27 55.32 58.74 49.53 36.55 28.47 5.65 32.25
19237.70a0.11a10.94 30.43 43.35 56.31a61.74 54.16 50.17 33.23 25.80 15.06 32.42
1924-4.81 10.03 17.13 31.23 35.58 50.53 54.61 54.71 44.97 39.65 19.80 -2.35 29.26
1925-1.13 10.57 20.58 37.82b38.77 52.33 54.23 55.23 49.43 24.23 20.27 7.87 30.85
19261.52 15.36 14.87 26.57 46.97 49.03a56.94 55.79b44.36b33.52 15.43b2.71 30.25
19275.17a11.07a23.55 33.43 40.71 50.40 54.23 51.13 47.90a36.55 17.13 -6.94 30.36
19284.48 11.10 19.87 23.43 43.61 47.17 56.77a55.45 42.61b34.55 22.30 14.45 31.32
1929-12.57a-6.46 24.19 33.33 38.81 49.73 57.77 54.65 44.50 35.19 16.70 7.10 28.58
1930-7.81 18.43 18.43a34.67 42.16 52.33 59.68 59.13 44.80 34.29 21.54b14.47a32.68
193113.97 19.39 19.42 32.73 39.94 57.57 60.48 56.07a53.53 39.48 24.10a17.19 36.16
19323.73a9.07 12.52 35.61b46.33a57.03 58.87 57.87 43.67 32.79c19.19c3.14b31.65
193312.27a2.63a20.35 31.27 45.55 60.27 60.13 55.03 52.07 31.23 21.23 5.63a33.14
19349.90 9.36 17.06 32.17 51.84 56.77 60.71 54.32 42.03 40.06 26.30 7.94 34.04
19350.65 19.21 24.61 31.97 41.68 51.27 64.77 57.52 46.73 31.19 15.31a8.06 32.75
1936-11.52 -15.79 20.52 26.47 50.19 54.60 66.06 60.39 50.33 30.45 19.34a9.33a30.03
1937-10.13 1.36 18.06 31.93 48.03 53.90 60.81 63.13 48.67 33.74 18.47 5.23a31.10
19382.00 6.71 24.39 34.73 44.19 54.70 60.26 59.81 50.20 41.94 17.90 12.77 34.13
193910.48 -4.14 18.06 31.10 49.65 55.07 60.71 56.83a48.83 34.71 23.90 17.74 33.58
1940-5.94 8.72 18.94 28.97 40.68 52.37 59.87 55.29 50.40 38.97 14.80 13.58 31.39
19413.52 0.54 16.81 39.70 47.61 54.23 58.81 57.65 48.40 34.97 21.10 13.06 33.03
19427.84 8.29 23.97 35.43 42.23 53.77 56.39 56.45 42.20 32.26 19.42f3.00 32.89a
1943-8.00 4.18 11.16 31.87 39.97 54.77 60.48 57.97 43.47 34.71 21.57 10.10 30.19
194413.06 4.62 11.68 29.57 48.03 54.13 57.32 55.84 46.55h34.97 26.90 9.43a31.41a
19456.52 7.79 25.35 28.97 38.39 49.73 58.13 57.13 46.27 33.10 19.70 0.61 30.97
1946-1.53a1.96 27.07a35.83 39.45 53.67 60.26 54.90 46.37 35.13 18.97 10.35 31.87
194710.57a1.93 17.42 31.23 38.81 51.37 57.13 61.77 47.03 42.29 14.57 3.23a31.45
1948-3.14b-0.31 12.97 35.03 42.58 52.80 59.94 57.13 50.90 35.13 23.57 6.97 31.13
1949-2.77 -1.93 17.84 30.77 46.35 53.27 59.13 58.74 43.13 35.81 27.17 6.52 31.17
1950-10.35 5.21 13.74 25.63 40.84 51.57 54.77 52.10 46.90 36.97 13.67 2.81 27.82
1951-4.81 8.21 8.13 30.23 44.94 49.17 57.19 55.16 42.50 33.35 14.80 0.87 28.31
1952-2.84 9.72 12.90 33.40 42.29 55.47 57.71 55.26 47.40 29.29 20.33 10.71 30.97
19533.13 9.86 20.74 28.43 42.61 55.33 57.39 60.16 45.77 39.03 24.10 7.77 32.86
1954-6.00 21.75 15.71 31.20 37.94 54.50 59.94 56.26 48.33 34.81 25.80 13.06 32.77
19554.45 -1.64 12.74 37.53 47.29 53.60 62.90 60.06 46.03 34.74 9.77 -1.16 30.53
1956-2.23 -2.48 13.71 25.37 43.03 58.53 56.00 56.65 42.20 37.19 19.67 12.19 29.99
1957-6.10 5.96a18.19 30.93 42.13 52.13 62.74 57.06 44.17 37.68 22.87 14.61 31.87
19589.39 1.43 21.68 31.63 43.77 48.23 55.84 56.06 48.10 35.77 19.77 2.32 31.17
1959-2.87 -1.21 22.03 30.20 43.74 56.23 57.10 60.23 47.27 30.61 13.67 18.52 31.29
19601.87 2.34 3.42 32.13 42.45 51.83 58.32 58.03 48.13 34.35 20.20 6.90 30.00
1961-1.16 10.11 24.94 26.17 40.52 54.00 56.10 59.42 43.80 35.00 20.20 2.16 30.94
1962-3.06 3.36 16.58 29.60 48.16 55.03 57.77 56.74 43.87 36.65 25.27 8.52 31.54
1963-7.84 3.86 22.35 33.60 43.90 57.93 61.23 57.61 49.93a43.55 23.77 0.16 32.50
19647.65 9.69 9.23 33.57 45.29 53.30 61.71 54.19 44.63 33.06 17.57 -0.52 30.78
1965-5.84 -1.46 6.16 32.53 44.13 53.43 58.87 54.97 39.40 36.71 18.13 16.42 29.45
1966-9.03 2.36 22.87 27.13 38.68 53.67 63.16 54.00 46.07 32.61 15.00 8.26 29.56
19673.06 -3.21 20.35 31.10 37.29 53.10 55.19 51.87a46.43 32.77 20.10 6.52 29.55
19682.13 3.55 22.84 32.17 39.71 54.60 57.13 56.26 47.17 35.74 23.47 5.77 31.71
1969-6.06 9.04 5.90 33.97 45.13 47.97 58.60a58.10 47.83 33.06 23.53 10.61 30.64
1970-7.90 4.71 14.77 31.10 44.06 55.87 58.61 57.52 47.37 34.71 20.00 3.13 30.33
1971-5.26 4.86 18.42 31.17 40.00 57.83 54.23 55.68 46.73 38.35 20.83 4.90 30.65
1972-6.39 -2.41 17.81 31.43 48.16 54.17 57.68 58.26 45.63 32.13 22.83 0.29 29.97
19735.81 11.64 28.68 31.00 42.00 54.00 58.52 61.68 46.60 40.39 22.13 4.90 33.95
1974-3.26 5.79 18.68 33.73 42.16 51.73 62.13 52.68 39.77 35.48 21.17 11.29 30.95
19752.71 2.36 10.45 30.47 44.74 54.30 61.32 57.19 43.17 36.03 21.00 7.74 30.96
19760.74 14.41 18.32 35.10 39.42 55.20 59.94 59.03 45.50 30.26 13.47 1.45 31.07
1977-9.23 11.71 24.55 38.27 52.58 56.57 60.74 53.48 49.03 34.84 18.57 3.06 32.85
1978-10.32 -2.93 15.06 33.80 46.10 54.07 59.55 58.39 52.27 34.87 16.03 1.74 29.89
1979-9.97 -6.86 15.48 30.33 39.74 53.97 60.26 57.03 48.37 34.10 19.93 13.97 29.70
19802.97 3.48 15.55 33.30 44.87 55.43 58.06 56.10 46.10 33.55 24.87 8.77 31.92
19816.00 11.86 23.10 35.93 42.74 54.47 60.84 58.29 46.57 35.52 25.63 4.52 33.79
1982-12.84 4.75 18.68 28.60 48.00 48.83 61.10 57.42 47.07 36.00 17.73 13.19 30.71
198310.58 17.18 23.87 29.23 40.45 53.30 62.74 62.61 47.83 35.52 22.71b-8.77 33.10
19845.00 18.55 15.00 33.33 41.87 55.87 58.97 58.58 41.00 38.16 22.10 4.42 32.74
1985-2.90 5.04 24.61 35.40 48.29 49.60 -----z-----z48.00 34.35 11.00 -4.39 24.90b
19868.32 2.50b23.10a35.73 46.39 56.83 60.71 54.10 48.27 36.23 16.27 13.74 33.52
198711.52 21.32 25.13 36.93 50.13 57.10 63.32 56.65 49.63 31.71 27.93 17.35 37.39
1988-1.16 3.14 22.74 31.77 50.90 60.47 62.48 60.23 48.43 31.13 22.50 9.26 33.49
19898.39 -5.00 15.94 33.13 43.61 50.83 61.65 58.74 46.77 32.52 17.13 -0.19 30.29
199014.13 9.68 23.29 29.57 43.26 54.97 56.58 56.74 50.07 32.32 23.17a3.23 33.08
19911.90 15.21 21.87 34.70 49.55 59.67 60.19 58.90 48.40 32.35 15.50 13.71 34.33
199211.39 19.72 23.71 30.40 44.42 52.37 53.68 52.06 46.53 34.03 22.03 5.94 33.02
19930.87 4.14 16.39 31.03 44.10 51.43 58.48 58.06 43.50 33.81 18.23 9.68 30.81
1994-8.13 -1.18 22.58 32.00 49.00 57.13 58.71 55.74 50.17 40.19 25.63 13.45 32.94
19957.06 9.11 21.55 30.00 42.58 57.40 60.19 62.10 46.47 36.23 18.03 10.52 33.44
1996-5.13 7.03 12.90 27.78g-----z-----z56.03 57.03 46.60 33.65 11.07a-0.20a24.33c
1997-4.68 4.86 14.42 26.77 38.87 55.79a59.45 56.13 48.97 36.06 17.83 16.06 30.88
19987.77 20.93 18.10 33.83 48.67a52.03a59.52 58.68 49.87 38.61 25.43 12.52 35.50
19992.10a17.68 22.35 35.30 46.03 55.10 61.32 57.39 45.87 33.68 26.90 12.90 34.72
20003.58 16.55 24.87 31.90 46.06 53.77 59.84 57.42 45.33 38.74 16.97 -3.90a32.59
20016.26 -6.89 13.45 33.93 46.74 55.07 62.61 58.42 49.07 34.48 29.07 14.23 33.04
20029.71 15.61 10.19 30.40 37.77 57.83 63.29 57.74 49.90 29.55 20.40 13.23 32.97
20035.32 -0.57 16.84 33.17 42.90 53.43 59.19 59.52 45.37 36.06 18.57 15.26 32.09
2004-0.03 9.48 23.84 30.60 43.16 50.97 58.06 52.19 52.17 37.77 26.03 13.13 33.11
20053.13 12.39 18.94 36.10 43.90 58.80 60.90 56.84 52.33 36.42 23.07 10.39 34.43
200618.71 6.32 23.97 37.77 45.71 55.70 60.97 58.68 46.10 31.77 19.90 16.32 35.16
20077.03 1.82 24.84 31.17 49.13 57.67 61.61 58.48 49.40 40.45 21.90 3.55 33.92
2008-1.65 1.90 17.65 27.43 41.65 51.97 59.58 58.45 47.33 35.74 22.43 -1.65 30.07
2009-4.16 5.61 17.68 30.67 42.26 52.77 54.87 54.68 51.87 32.68 28.10 3.48 30.87
20101.19 1.75 26.65 38.57 45.42 55.47 60.52 62.26 47.47 36.68 20.87 3.81 33.39
2011-4.35 0.14 14.42 31.60 43.58 54.73 65.35 58.26 44.93 38.10 21.63 14.97 31.95
201210.16 13.21 31.81 36.33 47.65 56.80 65.77 55.23 43.73 33.35 21.93 8.61 35.38
20133.23 5.68 11.35 24.69a44.29 55.20 59.52 59.42 53.10 35.90 18.43 -1.42 30.78
2014-3.90 -3.79 13.74 28.87 43.97 54.53 57.16 58.29 48.77 35.48 12.83 15.13 30.09
20159.16 0.75 20.97 33.63 44.26 56.03 60.35 57.32 53.60 39.94 29.43 16.65 35.17
20168.06 15.93 28.35 34.90 46.13 58.07 60.58 60.65 52.43 39.29 30.13 4.35 36.57
20176.19 17.86 20.81 32.13 42.48 54.70 60.16 54.84 51.40 34.87 20.87 9.13 33.79
20183.58 -2.68 20.71 23.60 49.90 60.30 60.42 58.48 50.87 31.55 16.03 12.26 32.09
2019-0.03 -4.86 14.16 32.57 41.52 55.87 61.32 57.61 52.33 32.61 20.73 10.94 31.23
20204.84 4.34 22.94 28.47 44.13 59.80 62.13 59.29 47.57 30.84 24.20 12.13 33.39
202115.26 -0.29 25.42 31.23 43.90 58.07 61.29 59.13 51.13 40.23 24.63 10.58 35.05
2022-3.23 0.07 19.26 28.40 45.97a58.37 61.84 59.10 49.93 33.71 20.53 4.87 31.57
20236.10 4.14 10.55 29.50 48.94 60.37 57.45 59.81 53.57 37.39 22.97 21.32 34.34
20247.61 19.17 21.15d-----z-----z-----z-----z-----z-----z-----z-----z-----z15.98i
Period of Record Statistics
MEAN1.11 5.01 18.27 31.63 43.53 54.00 58.78 56.60 47.00 34.88 20.50 7.59 31.71
S.D.7.11 7.60 5.61 3.39 3.53 3.20 3.06 2.85 3.31 3.35 4.45 6.08 2.08
SKEW0.02 0.18 -0.30 -0.12 0.14 -0.12 -0.13 -0.29 -0.29 -0.23 -0.23 -0.29 0.04
MAX18.71 21.75 31.84 39.70 52.58 60.47 66.06 63.13 53.60 43.55 30.13 21.32 37.39
MIN-14.00 -15.79 3.42 23.43 33.93 46.41 51.47 48.65 37.13 23.81 8.03 -8.77 26.32
YRS129 129 128 127 127 125 125 124 125 125 124 128 115