GRAND RAPIDS FORESTRY LAB, MN

Average of Minimum Temperature (Degrees Fahrenheit)

(213303)

File last updated on April 19, 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
1915-----z-----z-----z-----z-----z44.17a49.10a46.00 42.17 31.77 17.90 7.40a34.07e
1916-18.90a-12.69 1.94 26.20 38.30a45.77 58.61 52.94 41.33 30.65 16.53 -9.48 22.60
1917-18.65 -17.96 7.55 25.63 33.16 43.93a55.68 47.97 41.37 23.55b22.60 -10.81e21.17
1918-17.18i-7.93 17.42 19.00 36.48 46.57 50.81 49.55 29.79a28.06 21.40 11.77 27.54a
19190.35 -3.36 7.48 27.10 36.13 53.53 50.77 49.35 43.30 28.03 9.93 -7.61 24.59
1920-11.40a-1.38 11.58 18.20 38.39 49.27 51.32 48.10 46.80 37.55 18.67 8.13 26.27
19211.68 5.36 12.58 30.53 41.19 53.43 59.06 50.65 45.47 33.45 12.53 1.42 28.95
1922-6.06 -9.96 13.94 28.37 44.19 49.57 52.00 51.90 43.50 33.33a27.63 -1.65 27.23
1923-3.97 -11.21 -1.55 26.30 36.65 49.60 55.42 44.97 39.90 29.61 24.30 11.39 25.12
1924-14.10 3.24 12.45 25.27 31.03 44.37 49.48 48.39 39.40 34.55 15.67 -9.52 23.35
1925-6.10 1.79 18.71 33.87 35.32 49.10 51.03 53.35 46.40 24.94 18.33 1.48 27.35
1926-1.57a3.79 8.52 25.77 39.90 45.10 52.61 52.42 40.72a30.94 12.90 -5.16 25.49
1927-6.97 1.61 17.65 30.03 38.81 48.50 51.90a45.90 48.28a34.06 13.07a-9.94 26.08
1928-4.35 0.21 7.35 21.40 39.48 45.17 53.16 51.39 41.83a34.48 24.07a11.58 27.15
1929-19.74 -8.57 17.48 28.60 33.97 43.83 52.19 49.06 41.80 33.13 14.87 1.81 24.04
1930-13.30a7.33a12.48b27.17 39.84 49.60 54.03 50.48 42.93 33.52 19.64b7.27a27.58
19316.45 12.22a15.16 28.17 37.90 53.03 54.94 50.65 48.07 38.03 25.80 15.40a32.15
19325.13 -1.59 4.06 28.37 40.84 52.27 54.27a51.71 40.90 31.77 14.97a0.00 26.89
19331.74 -8.14 11.81 27.70 41.94 53.07 54.23a49.00a47.00 28.03 14.41a-5.35 26.29
19343.65 -2.96 7.71 29.03 43.40a50.33 52.94 48.68 42.00 35.97 25.23 -3.13 27.74
1935-9.65 8.79 14.58 24.97 35.81 46.60 59.71 53.84 40.47 32.30a11.00u4.47a28.35a
1936-12.87 -19.10 14.23 21.23 43.90 45.47 55.84 53.29 45.03 26.97 12.87 3.81 24.22
1937-15.29 -4.11 5.68 27.24a41.32 47.63 55.33a57.19 43.80 29.83a18.14a-1.13 25.47
1938-5.32 4.04 19.58 26.60 39.42 48.97a53.68 55.52 42.53 36.19 15.83a3.77 28.40
19390.61 -10.77b5.81 24.20 41.74 50.20 54.32c52.29 43.60 31.87 20.43 13.68 27.33
1940-7.97a4.34 6.19 25.50 37.47a46.47 52.94 51.94 45.40 36.77 15.27 5.68 26.67
1941-0.32 -0.79 9.74 36.47 44.68 51.90a56.19 51.34b47.10 34.94 21.70 10.29 30.27
19424.48 0.43 19.48 32.30 35.90 48.60 51.97 53.10a40.70 30.84 15.33 -1.31b27.65
1943-9.23 -2.36 3.03 24.97 36.71 50.07 55.94 51.93a40.47 30.35 15.43 4.29 25.13
19449.00 -2.79 10.58 22.40 41.87 49.63 54.19 52.42 44.20 31.20a27.47 3.87 28.67
1945-2.13 -0.89 20.32 24.93 31.40a43.87 51.97 52.68 42.67 29.10 18.33 0.90 26.10
1946-1.84 -4.07 22.42 30.07 36.32 47.57 53.42 48.73a41.43 31.81 16.40 2.13 27.03
19470.23 -5.43 7.81 24.53 34.58 46.43 54.26 57.71 42.00 40.39 15.77 3.16 26.79
1948-8.97 -5.72 12.73a31.70 37.39 48.67 54.58 53.10 46.87 32.45 22.37 1.58 27.23
19490.16 -7.00 10.29 29.23 39.68 51.70 56.26 56.93a41.03 35.58 24.07 1.39 28.28
1950-13.90 -2.71 5.97 22.17 37.84 48.03 53.10 47.29 44.97a36.07a14.90 -3.19 24.21
1951-7.29 1.04 8.13 26.97 43.90 47.17 52.93a51.79c42.30 33.71 13.30 0.19 26.18
1952-6.03 11.14 11.48 30.50 37.77 51.93 54.81 50.00a44.53 26.39 21.63 11.90 28.84
19530.19 0.43 15.77 26.57 37.23 50.23 52.35 53.55 43.83 37.16 24.07 3.32 28.73
1954-10.03 13.64 9.06 26.27 36.16 50.97 53.16 50.81 45.40 33.26 25.37 11.74 28.82
1955-1.87 -4.25 1.32 34.57 42.68 51.33 59.52 56.58 42.77 33.58 11.90 -5.03a26.92
1956-0.68 -5.90 7.29 23.90 37.32 51.03 49.45 49.81 39.34a38.65 22.70 3.97 26.41
1957-11.39 -0.89 9.42 28.57 39.00 49.03 58.06 51.81 42.30 33.52 23.03 8.00 27.54
19586.65 -1.46 18.52 30.00 37.94 42.73 51.90 50.77 45.77 35.23 20.40 -4.81 27.80
1959-10.77a-3.39 14.71 27.90 42.90 50.97 55.06 56.13 45.47 33.52 9.69a14.77 28.08
1960-0.94 1.34 5.10 29.43 39.94 47.37 52.87 55.65 45.17 34.06 24.17 1.45 27.97
1961-5.00 10.04 23.23 25.17 36.94 49.33 54.68 54.03 45.03 35.71 21.13 4.97 29.60
1962-7.65 -1.00 18.06 26.07 43.45 48.60 52.19 52.10 42.53 37.29 25.90 5.23 28.56
1963-9.26 -4.64 17.29 30.47 39.16 52.90 57.13 52.39 46.60 42.90 25.50 -2.19 29.02
19644.74 2.93 9.52 28.53 44.00 49.17 55.13 49.94 42.40 33.94 22.97 -1.58 28.47
1965-9.68 -6.64 2.94 30.67 42.32 47.80 52.19 50.42 39.50 35.97 19.00 15.19 26.64
1966-15.45 -1.82 20.29 27.87 36.65 50.27 57.61 51.39 42.63 32.45 16.47 3.61 26.83
1967-0.94 -10.32 13.39 28.27 34.29 49.87 52.61 50.19 43.30 32.77 19.30 6.71 26.62
1968-3.03 -2.79 20.00 30.77 39.61 49.27 54.52 52.97 46.40 38.00 22.90 2.90 29.29
1969-4.13 4.71 10.16 31.57 40.32 44.03 54.48 55.52 46.20 31.45 21.13 11.00 28.87
1970-6.71 -1.93 5.84 28.67 39.65 53.03 56.68 54.00 45.87 36.13 19.80 -0.71 27.53
1971-10.84 0.82 12.06 28.20 36.03 52.77 50.52 48.45 44.03 39.77 21.37 3.84 27.25
1972-11.19 -5.69 10.84 26.30 44.81 48.03 52.06 51.61 40.03 30.55 19.70 -3.29 25.31
19730.81 3.00 26.10 28.27 39.35 50.33 53.97 54.97 41.60 39.00 21.10 4.39 30.24
1974-4.84 -1.14 10.81 28.43 37.42 48.00 56.35 49.87 38.50 34.65 22.93 11.61 27.72
19750.13 2.32 7.58 24.33 42.45 48.97 57.94 52.23 42.03 36.48 20.10 1.84 28.03
1976-6.00 9.00 12.26 32.60 38.19 50.80 52.87 51.65 41.20 26.97 13.13 -7.97 26.23
1977-12.45 5.64 22.39 33.87 47.81 50.63 55.81 47.81 45.63 35.10 19.00 2.19 29.45
1978-7.55 -4.57 11.77 28.83 43.16 48.80 54.77 53.03 47.97 35.10 15.80 -4.03 26.92
1979-13.35 -5.50 15.35 25.67 37.39 47.57 54.94 50.16 45.23 32.74 20.53 12.06 26.90
1980-2.71 0.62 7.87 31.63 43.13 49.63 54.87 54.23 43.03 31.74 23.03 1.61 28.22
19810.29 9.57 21.10 31.40 39.90 50.40 54.52 54.97 43.53 34.68 27.70 6.45 31.21
1982-16.26 0.50 13.03 25.47 45.00a46.00 55.87 51.71 45.30 37.32 17.37 13.06 27.86
19832.00 9.71 21.26 28.90 36.32 50.43 58.90 58.10 45.53 34.52 24.27 -12.32 29.80
1984-4.97a13.64a8.77 31.77 38.74 52.53 54.42 56.84 39.23 37.79b17.36b-0.42 28.81
1985-7.35 -5.14 21.29 32.83 44.61 45.37 53.70a50.40a43.40 30.83b8.86a-8.33a25.87
19860.16 -0.25 16.68 34.03 41.55 49.53 57.41b49.03a44.13 33.65 13.21a7.17a28.86
19873.45 15.64 21.29 32.87 43.32 51.63 58.10 52.35 45.03 30.42 22.97 13.23a32.53
1988-9.87 -10.76 14.16 26.52a44.57a52.50 56.55 55.65 45.67 28.14b22.07 0.03a27.10
1989-1.87 -13.64 7.19 25.10 40.35 49.34a57.55 53.10a42.67 31.45 14.70 -8.74 24.77
19907.81 -3.96 16.03 28.67 38.52 52.27 54.26 53.03 44.53 29.97 19.50 -0.97 28.30
1991-8.10 4.57 15.61 32.77 47.03 54.77 56.35 55.39 43.77 30.16 13.97 4.84 29.26
19924.71 11.34 16.68 27.57 42.26 47.57 49.48 50.35 41.13 30.45 21.07 2.61 28.77
1993-5.39 0.04 14.48 27.50 40.48 49.17 56.65 55.47a39.83 28.84 14.63 5.61 27.28
1994-16.19 -8.25 19.30a28.27 42.26 53.00 55.26 51.29 46.73 37.90a24.47 11.13 28.76
19950.23 -3.96a17.48 25.37 41.10a56.00 55.10 57.55 43.00 34.13 11.43 -0.45 28.08
1996-18.23a-3.45 4.74 23.53 38.77 50.41a54.58 55.03 46.20 32.83a12.32b1.55 24.86
1997-5.57a2.46 14.13 26.43 36.10 53.47 55.65 51.65 47.80 35.61 18.20 15.68 29.30
19987.39 21.54 18.58 31.20 44.48 51.17 54.39 55.45 47.27 37.32 24.00 7.97 33.40
1999-0.37a11.39 19.23 31.73 44.26 52.20 58.58 54.61 44.57 32.29 25.57 11.10 32.10
2000-2.55 11.03 22.81 28.27 42.03 46.77 55.87 53.90 40.73 34.74 22.47 -7.39 29.06
20016.81 -5.50 13.61 32.33 42.87 52.30 56.13 54.84 44.37 32.90 29.97 13.81 31.20
20026.61 12.32 8.32 28.43 35.68 54.47 59.03 55.65 47.77 28.03a17.40 12.58 30.52
2003-0.19 -2.61 12.90 28.77 39.90 50.17 56.19 57.97 45.10 33.77 18.03 12.58 29.38
2004-7.71 8.17 19.58 27.93 36.35 46.90 53.94 48.35 49.43 36.29 23.17 2.80a28.77
2005-4.97 8.07 12.42 33.00 40.84 52.53 56.10 52.55 46.70 34.84 22.40 13.10 30.63
200616.74 0.61 21.55 35.86a45.77 52.10 60.06 55.10 44.40 31.45 23.87 15.26 33.56
20074.65 -2.36 20.10 27.47 44.58 54.37 56.74 53.35 44.97a39.16 22.07a2.97 30.67
2008-2.52 -3.59 12.65 27.93 37.39 50.00 54.13 51.80a45.93 35.74 22.33 -5.55 27.19
2009-10.23 4.14 15.19 30.57 37.42 49.20 50.87 51.94 50.10 32.23 28.27 4.87 28.71
2010-0.74 1.04 25.61 33.90 42.16 51.53 58.06 58.06 43.47 36.03 22.07 3.06 31.19
2011-3.97 1.46 13.74 30.10 40.97 50.53 59.42 55.23 42.43 37.42 22.50 12.81 30.22
20126.97 13.00 27.77 30.57 43.42 52.47 59.97 52.77 41.27 32.52 21.17 6.06 32.33
2013-0.13 1.57 9.68 24.60 40.16 50.07 56.35 54.35 47.00 34.68 17.20 -8.71 27.24
2014-11.90 -8.93 4.55 25.10 41.19 51.70 53.77 54.10 45.07 32.84 11.83 12.71 26.00
20152.55 -7.50 16.87 29.73 39.68 50.23 57.29 53.03 50.47 35.32 26.73 18.16 31.05
20163.32 7.62 23.74 30.13 41.81 51.30 58.00 56.03 49.00 37.39 28.67 5.90 32.74
20174.00 10.21 15.65 31.07 40.45 51.20 55.87 51.42 48.00 35.94 17.23 1.74 30.23
2018-2.65 -4.54 15.94 20.63 44.65 52.67 57.13 54.87 47.30 31.81 15.13 10.16 28.59
2019-6.48 -3.89 10.87 29.47 37.58 50.03 57.48 53.00 48.70 34.06 18.00 7.23 28.00
20205.52 -1.72 18.87 25.73 40.65 52.93 58.77 56.26 43.83 29.23 23.70 9.61 30.28
20218.16 -4.14 22.42 30.13 40.87 54.93 57.19 58.19 48.00 40.87 22.07 6.97 32.14
2022-10.35 -10.25 13.58 25.63 42.45 50.70 56.23 56.45 47.80 35.90 22.00 5.71 27.99
20238.52 2.57 11.45 27.80 45.10 55.23 54.61 55.55 51.38f38.45 22.63 23.29 31.38a
20248.81 16.38 18.84 -----z-----z-----z-----z-----z-----z-----z-----z-----z14.67i
Period of Record Statistics
MEAN-3.67 0.00 13.59 28.18 39.98 49.79 54.91 52.59 44.01 33.58 19.69 3.95 28.03
S.D.7.35 7.49 6.02 3.43 3.36 2.82 2.54 2.90 3.02 3.51 4.70 7.26 2.29
SKEW-0.02 0.27 -0.03 -0.21 -0.14 -0.33 -0.09 -0.15 -0.81 -0.20 -0.18 -0.07 0.01
MAX16.74 21.54 27.77 36.47 47.81 56.00 60.06 58.19 50.47 42.90 29.97 23.29 33.56
MIN-19.74 -19.10 -1.55 18.20 31.03 42.73 49.10 44.97 29.79 23.55 8.86 -12.32 21.17
YRS108 109 109 108 108 109 109 109 108 109 108 109 105