Monthly Temperature Anomaly
M.U. Weather Center/Lancaster, PA

Much Below
Avg T < -1.25 SD

Below
Avg T < -0.5 SD

 Normal
-0.5 SD <= Avg T <=0. 5 SD		 Above
Avg T > 0.5 SD		 Much Above
Avg T > 1.25 SD 

Bold type indicates warmest and coldest month of record.
YEAR JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC ANNUAL
1914 +1.00 -8.00 -7.53 -2.38 +1.48 -0.60 -1.10 -0.10 -3.47 +3.27 -1.65 -4.34 -1.95
1915 +2.19 +3.80 -5.00 +3.85 -3.71 -2.47 -0.82 -1.50 +2.27 +2.13 -0.82 -2.60 -0.22
1916 +5.69 -3.62 -7.00 -1.60 +0.61 -4.43 +1.21 +1.31 -1.15 -1.74 -1.98 -3.08 -1.31
1917 -0.65 -2.27 -0.31 +0.05 -6.56 -1.15 -0.85 +0.92 -4.57 -4.26 -3.67 -8.34 -2.64
1918 -9.65 -1.18 +3.65 -0.97 +3.50 -2.70 -3.68 +2.77 -5.12 +2.55 +4.82 +3.89 -0.18
1919
 +3.68 +2.54 +4.77 -0.97 +0.58 +2.03 +0.21 -2.02 +3.02 +4.97 +1.33 -4.55 +1.30
YEAR JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC ANNUAL
1920 -5.74 -3.26 -1.19 -1.55 -3.84 -1.23 -1.58 +0.40 +0.95 +5.65 -0.70 +2.19 -0.83
1921 +3.37 +3.23 +10.81 +5.85 -0.26 +0.92 +3.40 -2.76 +4.38 -1.45 -0.38 -0.44 +2.22
1922 -3.81 +1.91 +1.37 -0.18 +1.26 +1.13 -0.94 -2.35 +0.83 +0.82 +0.02 -2.18 -0.18
1923 +1.65 -3.52 -1.10 -0.62 -1.55 +2.52 -0.84 -0.79 +1.55 -0.95 -1.38 +8.11 +0.26
1924 +2.10 +0.17 +3.11 +0.83 -3.60 -3.58 -2.58 -0.63 -3.05 +0.94 -0.47 -1.55 -0.69
1925 -2.76 +3.20 +3.60 +2.25 -4.02 +4.28 -1.40 -1.00 +4.13 -4.98 -1.92 -0.32 +0.09
1926 -1.32 -2.64 -6.56 -5.13 -1.87 -2.82 +0.45 +1.55 +1.12 +0.50 +0.50 -2.13 -1.53
1927 +1.10 +6.05 +4.52 -2.02 -2.94 -5.20 -2.02 -5.42 -1.38 +1.10 +3.27 +0.87 -0.17
1928 +1.56 -0.66 -1.79 -5.62 -1.94 -4.05 -0.19 +2.13 -3.52 +0.92 +1.18 +1.00 -0.91
1929 -0.16 -1.89 +4.45 +1.63 -1.95 -1.65 -2.13 -3.87 +0.43 -2.94 -0.02 -1.18 -0.77
YEAR JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC ANNUAL
1930 -0.55 +2.80 +0.45 -3.40 +0.55 +0.55 +0.63 -1.52 +4.55 -2.85 -2.35 -4.71 -0.49
1931 -2.06 -0.21 -4.34 -3.40 -3.10 -2.25 +0.81 -1.90 +3.45 -1.79 +2.58 +2.85 -0.78
1932 +9.66 +2.90 -5.45 -4.87 -1.63 -2.33 -2.27 -0.76 -2.05 -2.29 -5.78 -4.71 -1.63
1933 +5.45 -0.50 -4.02 -1.23 +0.34 -0.18 -2.52 -1.56 -0.02 -4.68 -6.85 -6.23 -1.83
1934 +3.60 -9.59 -2.97 -0.25 +2.84 +3.75 +2.98 -1.27 +1.62 -2.81 +0.08 -1.58 -0.30
1935 -2.29 -2.70 +3.15 -2.75 -3.39 -0.28 +2.32 +0.06 -3.13 -2.45 +2.92 -6.15 -1.22
1936 -6.10 -11.62 +4.02 -3.32 +3.31 -0.18 +1.32 +1.35 +2.28 +1.76 -2.77 +2.21 -0.64
1937 +8.26 +1.18 -3.58 -0.73 +1.81 +1.92 +0.58 +2.40 -2.62 -2.00 -1.67 -1.74 +0.32
1938 +1.71 +3.14 +2.52 +1.92 -0.98 -0.90 +0.47 +3.11 -0.98 +0.03 -0.07 -0.05 +0.83
1939 -0.16 +4.14 +0.55 -3.30 +2.35 +2.60 -0.76 +3.44 +0.75 -0.39 -2.77 +1.00 +0.62
YEAR JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC ANNUAL
1940 -9.85 -0.72 -4.61 -4.52 -0.66 -0.73 +0.81 -2.76 -2.70 -4.08 -0.28 +2.90 -2.27
1941 -0.77 -2.55 -6.18 +5.37 +2.05 -0.55 +0.10 -1.13 +2.22 +5.26 +0.85 +3.35 +0.67
1942 -1.97 -1.54 +2.45 +4.05 +4.10 +1.75 +0.08 -1.42 -0.08 +0.98 +1.30 -3.31 +0.53
1943 +1.45 +1.59 +0.03 -3.73 +2.47 +5.72 +0.11 +1.10 -1.15 -2.23 -1.97 -2.16 +0.10
1944 +1.90 +0.57 -2.53 -2.27 +6.11 +1.22 +0.53 +0.52 +0.38 -1.82 -0.42 -4.10 +0.01
1945 -5.35 -0.70 +10.16 +3.43 -2.47 -0.23 -1.55 -2.71 +2.45 -1.52 +1.58 -5.34 -0.19
1946 +2.23 +0.07 +7.87 -0.52 -0.26 -3.23 -2.53 -5.42 -1.23 +2.65 +2.58 +1.03 +0.27
1947 +6.74 -3.54 -4.16 +1.07 -0.26 -2.52 -2.76 +1.13 +0.37 +4.39 -2.65 -2.52 -0.39

1948

 -6.61 -3.33 +3.23 +0.63 -0.58 -1.32 -1.24 -2.32 -2.37 -2.69 +4.55 -0.06 -1.01
1949 +7.52 +5.75 +2.10 -0.98 -0.08 +0.92 +1.48 -1.06 -4.82 +3.15 -3.05 +2.56 +1.12
YEAR JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC ANNUAL
1950
+10.77
+1.09
-2.37
-3.57
-0.68
-1.43
-2.55
-2.16
-3.82
+0.53
+1.28
-2.03
-0.41
1951
+3.95
+1.98
+1.76
+0.02
+0.29
-1.43
-1.48
-1.85
-1.30
+1.03
-4.13
+0.39
-0.06
1952
+4.63
+4.07
-1.48
+2.38
-1.87
+0.95
+0.60
-1.48
-1.30
-4.15
-0.15
+2.11
+0.36
1953
+6.08
+5.80
+2.16
-0.27
+3.16
-0.45
-0.60
-1.18
-0.15
+0.52
-2.55
+3.08
+1.30
1954
-0.45
+6.34
+0.50
+3.18
-2.92
+0.73
-0.92
-2.10
+0.35
+2.60
-3.03
-0.32
+0.33
1955
-0.76
+0.27
+1.73
+2.75
+1.73
-3.68
+3.24
+1.90
-1.65
+2.06
-2.33
-5.60
-0.03
1956
+0.03
+3.74
-2.76
-2.68
-1.16
-0.12
-3.26
-1.65
-4.00
-0.40
-0.30
+6.32
-0.52
1957
-1.34
+4.50
+0.40
+3.07
+0.98
+2.10
-1.18
-1.95
+1.33
-3.35
+0.63
+2.15
+0.61

1958
-0.29
-5.29
-3.23
+2.23
-1.13
-3.12
+1.11
-0.45
-0.65
-0.68
+0.80
-6.21
-1.41
1959
+0.11
+0.71
+0.44
+4.03
+4.31
+1.72
+0.18
+2.19
+2.70
+3.98
-1.32
+0.92
+1.66
YEAR
JAN
FEB
MAR
APR
MAY
JUN
JUL
AUG
SEP
OCT
NOV
DEC
ANNUAL
1960
+3.11
+2.55
-8.77
+6.30
-1.53
-0.78
-2.87
+1.15
+0.82
-0.68
+0.58
-7.68
-0.65
1961
-7.69
0
+1.42
-3.15
-2.97
-0.35
-0.23
-0.61
+4.78
+0.47
+1.28
-2.94
-0.83
1962
-2.27
-3.73
-2.16
-0.70
+1.82
-0.78
-3.71
-2.76
-5.92
-1.08
-5.57
-7.66
-2.88
1963
-3.87
-7.16
+1.76
+1.02
-1.05
+0.35
+0.35
-0.24
-1.32
+6.05
+4.30
-6.50
-0.53
1964
+0.11
-3.28
+1.37
-1.42
+4.19
+0.47
+2.63
-0.34
+2.08
-0.06
+4.95
+4.11
+1.23
1965
-2.74
+1.23
-1.84
-1.92
+5.40
-0.37
+0.94
+1.32
+4.30
-0.24
+1.55
+3.79
+0.95
1966
-2.00
-1.16
+2.39
-2.65
-1.18
+2.75
+2.84
+1.29
-1.73
-1.90
+1.62
+0.16
+0.04
1967
+5.98
-2.68
-0.53
+2.03
-5.47
+1.47
-1.08
-0.89
-1.03
+0.37
-3.75
+2.10
-0.29

1968
-4.26
-2.66
+3.15
+1.90
-4.97
-1.33
+0.27
+1.95
-0.33
+1.29
-0.45
-2.76
-0.68
1969
-1.34
-1.82
-3.94
+1.18
+0.21
+0.42
-1.06
-0.76
-1.30
-2.31
-2.53
-3.16
-1.37
YEAR
JAN
FEB
MAR
APR
MAY
JUN
JUL
AUG
SEP
OCT
NOV
DEC
ANNUAL
1970
-8.18
-1.64
-4.89
-1.48
+1.66
-1.22
+0.18
+0.58
+1.78
+2.40
+1.80
-0.23
-0.77
1971
-4.95
+1.48
-2.68
-2.43
-3.76
+0.73
-2.63
-2.29
+2.83
+4.55
-1.20
+6.05
-0.36
1972
+2.02
-3.41
-1.58
-3.82
-0.85
-3.82
+0.85
-0.05
+0.07
-5.35
-3.68
+3.39
-1.35
1973
+2.69
-0.86
+4.81
-0.47
-4.18
+1.93
-0.48
+2.58
+1.30
+1.02
+1.47
+1.58
+0.95
1974
+3.74
-1.32
+0.29
+1.42
-1.81
-1.83
-2.74
-0.77
-3.53
-5.21
-0.07
+2.00
-0.82
1975
+3.97
+2.21
-3.03
-4.17
+3.18
+0.20
-0.68
-0.61
-5.60
+0.37
+5.23
+0.13
+0.10
1976
-3.48
+6.67
+3.82
+1.45
-2.39
+2.62
-2.06
-2.03
-2.70
-3.50
-5.80
-5.05
-1.04
1977
-11.65
-0.39
+5.32
+2.05
+1.68
-2.70
+0.52
+0.60
+1.92
-2.11
+1.83
-1.71
-0.39

1978
-4.21
-9.71
-4.11
-2.08
-2.56
-1.40
-2.87
+2.35
-0.17
-0.45
+0.00
+1.66
-1.96
1979
-1.84
-10.77
+3.35
-2.12
+1.08
-2.82
-1.69
-0.06
-0.37
-1.37
+4.40
+3.47
-0.73
YEAR
JAN
FEB
MAR
APR
MAY
JUN
JUL
AUG
SEP
OCT
NOV
DEC
ANNUAL
1980
+0.21
-3.60
-1.87
+1.75
+2.27
-2.63
+1.47
+3.48
+3.03
-2.34
-2.95
-2.90
-0.34
1981
-5.71
+4.66
-1.16
+2.68
-0.74
+0.75
-0.06
-1.26
-1.32
-3.56
-0.68
-1.37
-0.65
1982
-8.10
-0.34
-1.19
-2.98
+1.68
-3.45
-1.00
-4.66
-3.18
-0.68
+2.38
+6.34
-1.26
1983
+0.98
-0.45
+1.53
-1.98
-2.71
-0.78
+0.95
+1.92
-0.02
-0.63
-0.23
-4.50
-0.49
1984
-5.81
+5.90
-6.08
-2.27
-2.19
+0.07
-2.82
-0.15
-4.48
+4.05
-2.45
+5.18
-0.92
1985
-3.95
+0.41
+2.34
+2.88
+0.81
-3.87
-1.90
-1.87
+0.03
+0.87
+3.93
-3.82
-0.34
1986
-0.52
-3.02
+1.16
-1.22
+1.95
-0.98
-1.18
-4.05
-2.32
-0.31
-3.37
+2.19
-0.97
1987
+0.11
-1.20
+1.97
+0.22
-0.24
+1.23
+1.53
-0.95
-0.03
-5.26
+2.60
+5.37
+0.44

1988
-1.13
+0.62
+1.18
-1.88
-0.47
-0.58
+3.03
+2.89
-3.00
-4.97
+0.97
+0.60
-0.23
1989
+4.26
+1.05
-1.37
-2.33
-1.98
+0.47
-1.50
-0.74
-0.35
+0.37
-0.10
-11.45
-1.14
YEAR
JAN
FEB
MAR
APR
MAY
JUN
JUL
AUG
SEP
OCT
NOV
DEC
ANNUAL
1990
+7.9
+6.02
+3.50
+0.47
-3.05
-0.98
-1.61
-2.71
-3.73
+3.66
+1.62
+4.84
+1.32
1991
+1.60
+5.09
+1.89
+1.80
+5.42
+1.23
+1.68
+1.63
-1.33
+0.60
+1.07
+3.69
+2.03
1992
+2.35
+2.47
-1.58
-0.97
-3.56
-2.70
-2.31
-3.39
-2.33
-4.48
-0.33
+0.24
-1.38
1993
+2.73
-4.70
-5.55
-0.33
-0.08
-0.40
+1.37
-0.10
-1.63
-3.55
-1.05
-2.08
-1.28
1994
-10.24
-5.46
-4.53
+2.90
-3.73
+2.87
+1.66
-3.66
-2.82
-4.08
+2.85
+3.35
-1.74
1995
+3.74
-4.73
+2.08
-2.32
-1.21
-0.03
+1.71
+1.06
-1.38
+1.45
-6.05
-5.66
-0.94
1996
-4.37
-0.88
-5.90
-0.62
-2.56
+2.57
-1.31
+0.08
+0.50
-1.55
-5.30
+3.65
-1.31
1997
+0.00
+6.14
+0.32
-0.50
-1.19
+1.43
+2.50
+1.76
+1.00
+1.85
-0.43
+3.60
+1.37

1998
+9.94
+8.77
+3.85
+3.65
+5.76
+0.95
+0.71
+2.29
+4.35
+1.55
+2.75
+7.61
+4.35
1999
+2.37
+3.71
+0.05
+1.18
+1.50
+1.43
+3.85
+1.47
+3.22
+0.84
+4.57
+3.15
+2.28
YEAR
JAN
FEB
MAR
APR
MAY
JUN
JUL
AUG
SEP
OCT
NOV
DEC
ANNUAL
2000 -0.74 +3.14 +6.44 +0.97 +4.52 +3.45 -1.18 +0.40 -0.67 +1.23 -1.00 -5.81 +0.90
2001 +0.24 +2.82 -2.26 +1.05 +1.53 +2.77 -1.03 +4.56 -0.23 +1.08 +5.35 +6.13 +1.83
2002 +6.24 +5.14 +1.89 +3.32 -0.80 +2.18 +3.44 +5.00 +3.25 -0.60 -1.38 -3.78 +1.99
2003 -5.65 -5.50 -0.24 -1.23 -3.10 -1.67 +0.53 +3.38 +0.76 -1.71 +4.77 +0.19 -0.79
2004 -7.71 -0.97 +1.85 +1.20 +7.13 -0.33 -0.19 +0.15 +2.65 -0.52 +2.45 +0.45 +0.51
2005 -1.18 +1.12 -4.18 +2.28 -3.79 +3.40 +2.35 +4.13 +5.10 +1.97 +2.58 -3.42 +0.86
2006 +8.29 +0.88 +1.92 +3.22 +0.21 +0.77 +3.34 +2.53 -1.75 -0.48 +4.35 +6.74 +2.50
2007 +5.35 -6.70 +0.32 -2.60 +2.63 +1.68 -0.58 +1.66 +3.77 +7.48 -0.80 +0.73 +1.08
2008 +3.11 +0.86 +1.21 +3.13 -2.52 +4.23 +1.69 -0.69 +1.70 -0.55 +0.12 +1.39 +1.14
2009 -3.42 +3.61 +0.98 +2.12 +1.26 -0.08 -2.15 +2.40 -0.90 -0.56 +4.38 -0.11 +0.63
YEAR
JAN
FEB
MAR
APR
MAY
JUN
JUL
AUG
SEP
OCT
NOV
DEC
ANNUAL
2010 +0.74 -1.52 +6.55 +4.73 +3.74 +4.52 +3.85 +2.79 +4.15 +1.52 +0.40 -4.23 +2.27
2011 -3.76 +1.66 -0.55 +2.60 +2.69 +1.57 +3.76 -0.19 +1.68 -1.39 +3.38 +4.85 +1.36
2012 +3.77 +4.62 +9.27 -0.28 +5.18 +0.08 +3.61 +1.90 +0.65 +1.39 -3.18 +5.82 +2.74
2013 +2.90 -0.25 -2.97 +1.22 +0.21 +1.47 +2.79 -1.66 -1.75 +1.18 -3.23 -0.03 -0.01
2014 -7.66 -6.32 -6.19 -1.17 +0.06 +0.77 -1.29 -2.71 +0.42 +1.69 -3.60 +2.58 -1.95
2015 -4.03 -11.18 -5.32 +0.83 +5.47 +1.15 +0.11 +0.56 +3.72 -0.52 +4.90 +12.87 +0.71
2016 -0.90 +1.22 +5.94 -1.08 -1.26 +0.42 +2.53 +3.74 +3.68 +2.68 +2.52 +1.29 +1.73
2017 +5.00 +9.45 -1.37 +5.70 -1.77 +1.20 +1.53 -1.35 +1.25 +5.19 -1.67 -2.61 +1.71
2018 -2.36 +5.45 -5.34 -5.00 +4.00 +1.05 +2.08 +3.79 +4.97 +2.84 -4.70 +1.89 +0.70
2019 -1.77 +0.86 -2.52 +3.55 +2.18 +0.03 +2.74 +0.87 +2.68 +3.63 -2.12 +3.23 +1.11
2020 +7.42 +7.48 +7.19 -1.12 -0.89 +2.25 +5.71 +3.65 +0.52 +2.66 +5.68 +2.48 +3.59
2021 +3.60 +0.27 +4.73 +1.83 +0.10 +3.32 +1.53 +3.92 +2.83 +7.23 -1.38 +8.03 +3.00
2022 -1.94 +4.45 +3.79 -0.42 +3.23 +0.92 +2.95 +3.98