MOTT ISLAND ISLE ROYALE, MI

Average of Average Temperature (Degrees Fahrenheit)

(205637)

File last updated on April 18, 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
1940-----z-----z-----z-----z-----z-----z-----z-----z-----z43.00h29.10 21.77 25.44j
194117.05 16.61 22.53 38.48 45.32a56.10a60.84 62.02a54.48a45.89d33.07 25.13a39.79
194217.06 19.02a30.56 40.78 45.31 52.17a59.45 61.29b52.13 44.08 30.50 16.31b39.06
19438.23 14.69b17.44 33.42 43.68a51.10 56.57a60.74 51.02 44.45 29.80 19.16o37.38a
1944-----z-----z-----z-----z44.26 49.83 57.26 60.21 53.87 44.71 34.85 18.87 45.48d
1945-----z-----z-----z-----z42.81m49.03a57.66b63.10a53.43a42.69 29.43 16.55l49.22f
1946-----z-----z-----z36.85 44.28a52.03 58.65a60.02c52.94f45.68 31.87 -----z47.05e
1947-----z-----z-----z-----z41.47 53.15c58.15a58.65 52.23b49.90a28.88 -----z48.92e
1948-----z-----z-----z-----z45.55 52.85 59.65a62.52a57.90t-----z-----z-----z55.14h
1949-----z-----z-----z-----z45.35 54.36a58.73 62.63 51.58 45.90a32.32h-----z53.09f
1950-----z-----z-----z-----z43.71l51.48 53.16 53.44 51.33 44.54e27.19f-----z50.79g
1951-----z-----z-----z-----z48.18f49.69d59.16 58.50 51.85 42.00 -----z-----z52.24g
1952-----z-----z-----z-----z47.18 53.72a58.37a62.42 55.74a41.17a35.85m-----z53.10f
1953-----z-----z-----z-----z45.03b53.37 60.84 64.53 54.33 48.45 38.00q-----z54.43f
1954-----z-----z-----z-----z39.74b54.72a60.15a62.82 53.77 44.58a-----z-----z52.63f
1955-----z-----z-----z-----z49.06 54.92 63.65a66.77 55.78 46.39 36.86w-----z56.10f
1956-----z-----z-----z-----z43.59c56.22g58.65a60.40a50.73d47.98 38.50m-----z52.27g
1957-----z-----z-----z-----z48.86t52.12 58.23 61.50b53.05b45.63 -----z-----z54.11g
1958-----z-----z-----z-----z-----z50.65 58.11 61.82 54.42 -----z-----z-----z56.25h
1959-----z-----z-----z-----z-----z54.47 61.68 63.19 55.13 -----z-----z-----z58.62h
1960-----z-----z-----z-----z-----z53.65 57.63 60.92a53.57c45.27 -----z-----z54.21g
1961-----z-----z-----z-----z44.81 54.33a58.30d62.42a56.21b45.58 -----z-----z53.61f
1962-----z-----z-----z-----z45.40 50.09c55.39d61.24b52.34a46.32c33.58x-----z51.80f
1963-----z-----z-----z-----z44.52c51.67c60.34 61.44f56.07h55.20f-----z-----z52.17i
1964-----z-----z-----z-----z50.63 50.22 60.69 57.92a51.14a42.55 -----z-----z52.19f
1965-----z-----z-----z-----z45.19 53.17 56.33a57.79b49.28 44.26 -----z-----z51.00f
1966-----z-----z-----z-----z45.33e53.38 61.50 59.47 55.95 46.17p-----z-----z55.13g
1967-----z-----z-----z-----z40.74 51.98 56.95 59.56 56.08 42.92 -----z-----z51.37f
1968-----z-----z-----z-----z-----z52.10 56.58a57.85 54.50 46.90 -----z-----z53.59g
1969-----z-----z-----z-----z47.12r50.43 58.83a65.55 55.62 41.14c-----z-----z54.31g
1970-----z-----z-----z-----z43.73a53.72 59.89 64.61 55.27 46.08 -----z-----z53.88f
1971-----z-----z-----z-----z-----z52.08 58.13 59.68 56.09a49.85 -----z-----z55.17g
1972-----z-----z-----z-----z46.54f52.48 56.40 60.69 52.07 40.94 -----z-----z52.52g
1973-----z-----z-----z-----z47.88o50.88a58.03 62.47 55.60a-----z-----z-----z56.75h
1974-----z-----z-----z-----z44.23 52.82 59.48a59.95 49.95 43.52a-----z-----z51.66f
1975-----z-----z-----z-----z48.04c51.69f61.42f63.03b51.63c46.62a-----z-----z52.33h
1976-----z-----z-----z-----z46.13 53.23 61.89 64.56 53.59b42.64c-----z-----z53.67f
1977-----z-----z-----z-----z47.34 52.18 58.45 58.26 52.73 -----z-----z-----z53.79g
1978-----z-----z-----z-----z46.81 52.28 57.84 62.05 55.65 -----z-----z-----z54.93g
1979-----z-----z-----z-----z46.67m52.85 57.13 59.11 55.48 -----z-----z-----z56.14h
1980-----z-----z-----z-----z-----z52.79a61.27 64.52 53.02 43.61q-----z-----z57.90h
1981-----z-----z-----z-----z45.68f51.90a59.56 65.05 54.53a43.83v-----z-----z57.76h
1982-----z-----z-----z-----z48.00m51.22a58.02 57.25a-----z-----z-----z-----z55.50i
1983-----z-----z-----z-----z44.35r52.45 62.25a68.32 57.81a-----z-----z-----z60.21h
1984-----z-----z-----z-----z50.30p53.30b59.82a64.37 54.48b47.42 -----z-----z55.88g
1985-----z-----z-----z-----z-----z52.03 58.95 61.03 54.82 -----z44.69q-----z56.71h
1986-----z-----z-----z-----z54.92r54.13 58.48 61.37 53.50 42.98k-----z-----z56.87h
1987-----z-----z-----z-----z47.44n57.00 63.47 63.77 59.03 40.12w-----z-----z60.82h
1988-----z-----z-----z-----z46.37 56.78 63.12b62.84 55.31a44.00k-----z-----z56.88g
1989-----z-----z-----z-----z50.09n50.03 59.21 61.33b56.59b44.27p-----z-----z56.79h
1990-----z-----z-----z-----z-----z52.93c59.55 61.77a56.97m-----z-----z-----z58.08i
1991-----z-----z-----z-----z52.09t55.38 58.23 67.19b54.75b43.32n-----z-----z58.89h
1992-----z-----z-----z-----z-----z51.78 54.63a60.92a54.18b-----z-----z-----z55.38h
1993-----z-----z-----z-----z45.57q52.72a58.27 65.34b52.27 46.33y-----z-----z57.15h
1994-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z
1995-----z-----z-----z-----z-----z54.86a60.10 66.63 56.02 49.80p-----z-----z59.40h
1996-----z-----z-----z-----z-----z54.69a58.81b62.02a57.00a45.88o-----z-----z58.13h
1997-----z-----z-----z-----z45.25q54.82 59.25a62.64c58.85 50.54q-----z-----z58.89h
1998-----z-----z-----z-----z-----z-----z66.92a68.65 62.75b48.50j-----z-----z66.10i
1999-----z-----z-----z-----z-----z56.34a65.28a65.18a58.41b46.12o-----z-----z61.31h
2000-----z-----z-----z-----z-----z-----z-----z64.40e56.38 48.89h-----z-----z60.39j
2001-----z-----z-----z-----z47.40a54.33 58.58a67.23 -----z-----z-----z-----z56.89h
2002-----z-----z-----z-----z47.50n55.45b66.46c64.90b-----z-----z-----z-----z62.27i
2003-----z-----z-----z-----z-----z-----z60.47a-----z-----z-----z-----z-----z60.47k
2004-----z-----z-----z-----z46.11i54.50 60.40b60.05b57.79b50.68t-----z-----z58.18h
2005-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z
2006-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z
2007-----z-----z-----z-----z-----z-----z-----z64.70u59.17g-----z-----z-----z-----z
2008-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z
2009-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z
2010-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z
2011-----z-----z-----z-----z-----z-----z-----z67.94f-----z-----z-----z-----z-----z
2012-----z-----z-----z-----z-----z-----z-----z66.32l-----z-----z-----z-----z-----z
2013-----z-----z-----z-----z41.68l51.84k58.46s66.00m58.72n-----z-----z-----z-----z
2014-----z-----z-----z-----z46.00r50.96q58.54h59.48k54.73q-----z-----z-----z-----z
2015-----z-----z-----z-----z-----z51.06v62.02d64.83d63.45j-----z-----z-----z63.43j
2016-----z-----z-----z-----z45.83y55.22u59.06m65.50j-----z-----z-----z-----z-----z
2017-----z-----z-----z-----z-----z55.76i61.75o66.64x58.73s-----z-----z-----z-----z
2018-----z-----z-----z-----z-----z-----z60.04f-----z-----z-----z-----z-----z-----z
2019-----z-----z-----z-----z-----z53.94f66.19r-----z-----z-----z-----z-----z-----z
Period of Record Statistics
MEAN14.11 16.77 23.51 37.38 45.23 52.91 59.38 62.18 54.46 45.03 30.94 20.52 39.42
S.D.5.10 2.17 6.62 3.10 2.32 1.83 2.53 2.93 2.50 2.37 2.14 3.80 0.52
SKEW-0.71 0.14 0.27 -0.28 -0.17 0.12 0.72 -0.10 0.51 0.14 0.79 0.15 0.00
MAX17.06 19.02 30.56 40.78 50.63 57.00 66.92 68.65 62.75 49.90 34.85 25.13 39.79
MIN8.23 14.69 17.44 33.42 39.74 49.03 53.16 53.44 49.28 40.94 28.88 16.31 39.06
YRS3 3 3 4 28 58 62 62 55 31 8 4 2