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 +1.1 -7.9 -7.4 -2.2 +1.8 -0.3 -0.8 +0.2 -3.1 +3.6 -1.4 -3.9 -1.7
1915 +2.3 +3.9 -4.9 +4.1 -3.4 -2.2 -0.5 -1.2 +2.6 +2.4 -0.6 -2.2 0
1916 +5.8 -3.5 -6.9 -1.4 +0.9 -4.2 +1.5 +1.6 -0.8 -1.4 -1.8 -2.7 -1.1
1917 -0.6 -2.2 -0.2 +0.3 -6.3 -0.9 -0.6 +1.2 -4.2 -4.0 -3.5 -7.9 -2.4
1918 -9.6 -1.1 +3.7 -0.8 +3.8 -2.4 -3.4 +3.1 -4.8 +2.9 +5.0 +4.3 0
1919
+3.8 +2.6 +4.9 -0.8 +0.9 +2.3 +0.5 -1.7 +3.4 +5.3 +1.5 -4.2 +1.5
YEAR JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC ANNUAL
1920 -5.7 -3.0 -1.1 -1.3 -3.6 -1.0 -1.3 +0.7 +1.3 +5.9 -0.5 +2.6 -0.6
1921 +3.4 +3.3 +10.9 +6.1 0 +1.2 +3.7 -2.5 +4.7 -1.1 -0.2 0 +2.5
1922 -3.7 +2.0 +1.5 0 +1.5 +1.4 -0.7 -2.0 +1.2 +1.1 +0.2 -1.8 +0.1
1923 +1.7 -3.5 -1.0 -0.4 -1.3 +2.8 -0.6 -0.5 +1.9 -0.6 -1.2 +8.5 +0.5
1924 +2.2 +0.4 +3.2 +1.0 -3.3 -3.3 -2.3 -0.3 -2.7 +1.2 -0.3 -1.2 -0.4
1925 -2.7 +3.3 +3.7 +2.5 -3.6 +4.5 -1.1 -0.7 +4.5 -4.7 -1.7 +0.1 +0.3
1926 -1.2 -2.6 -6.5 -4.9 -1.6 -2.6 +0.7 +1.9 +1.5 +0.8 +0.7 -1.7 -1.3
1927 +1.2 +6.1 +4.6 -1.8 -2.7 -4.9 -1.7 -5.1 -1.0 +1.4 +3.5 +1.3 +0.1
1928 +1.6 -0.5 -1.7 -5.4 -1.7 -3.8 +0.1 +2.4 -3.2 +1.2 +1.4 +1.34 -0.7
1929 -0.1 -1.8 +4.5 +1.8 -1.7 -1.4 -1.9 -3.6 +0.8 -2.6 +0.2 -0.8 -0.5
YEAR JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC ANNUAL
1930 -0.5 +2.9 +0.5 -3.2 +0.8 +0.8 +0.9 -1.2 +4.9 -2.6 -2.1 -4.3 -0.3
1931 -2.0 -0.1 -4.3 -3.2 -2.8 -2.0 +1.1 -1.6 +3.8 -1.5 +2.8 +3.2 -0.5
1932 +9.7 +3.1 -5.4 -4.8 -1.3 -2.1 -2.0 -0.5 -1.7 -2.0 -5.6 -4.3 -1.4
1933 +5.5 -0.4 -3.9 -1.0 +0.6 +0.1 -2.2 -1.3 +0.3 -4.4 -6.6 -5.8 -1.6
1934 +3.7 -9.5 -2.9 0 +3.1 +4.0 +3.3 -1.0 +2.0 -2.5 +0.3 -1.2 -0.1
1935 -2.2 -2.6 +3.2 -2.5 -3.1 0 +2.6 +0.4 -2.8 -2.1 +3.1 -5.8 -1.0
1936 -6.0 -11.5 +4.1 -3.1 +3.6 +0.1 +1.6 +1.7 +2.6 +2.1 -2.6 +2.6 -0.4
1937 +8.3 +1.2 -3.5 -0.5 +2.1 +2.2 +0.9 +2.7 -2.3 -1.7 -1.5 -1.4 +0.6
1938 +1.8 +3.2 +2.6 +2.1 -0.7 -0.6 +0.7 +3.4 -0.6 +0.3 +0.1 +0.3 +1.1
1939 -0.1 +4.2 +0.6 -3.1 +2.6 +2.9 -0.5 +3.7 +1.1 -0.1 -2.6 +1.4 +0.9
YEAR JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC ANNUAL
1940 -9.8 -0.6 -4.5 -4.3 -0.4 -0.5 +1.1 -2.5 -2.3 -3.8 -0.1 +3.3 -2.0
1941 -0.7 -2.5 -6.1 +5.6 +2.3 -0.3 +0.4 -0.8 +2.6 +5.6 +1.1 +3.7 +0.9
1942 -1.9 -1.5 +2.5 +4.3 +4.4 +2.0 +0.4 -1.1 +0.3 +1.3 +1.5 -2.9 +0.8
1943 +1.5 +1.7 +0.1 -3.5 +2.8 +6.0 +0.4 +1.4 -0.8 -1.9 -1.8 -1.8 +0.3
1944 +2.0 +0.7 -2.4 -2.1 +6.4 +1.5 +0.8 +0.8 +0.7 -1.5 -0.2 -3.7 +0.3
1945 -5.3 -0.6 +10.2 +3.6 -2.2 0 -1.3 -2.4 +2.8 -1.2 +1.8 -4.9 0
1946 +2.3 +0.1 +8.0 -0.3 0 -3.0 -2.3 -5.1 -0.9 +2.9 +2.8 +1.4 +0.5
1947 +6.8 -3.5 -4.1 +1.3 0 -2.3 -2.5 +1.4 +0.7 +4.7 -2.4 -2.1 -0.2

1948

-6.5 -3.2 +3.3 +0.8 -0.3 -1.1 -1.0 -2.0 -2.0 -2.4 +4.8 +0.3 -0.8
1949 +7.6 +5.8 +2.2 -0.8 +0.2 +1.2 +1.8 -0.8 -4.5 +3.4 -2.8 +3.0 +1.4
YEAR JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC ANNUAL
1950
+10.8
+1.2
-2.3
-3.4
-0.4
-1.2
-2.3
-1.9
-3.5
+0.8
+1.5
-1.6
-0.2
1951
+4.0
+2.0
+1.8
+0.2
+0.6
-1.2
-1.2
-1.5
-0.9
+1.3
-3.9
+0.8
+0.2
1952
+4.7
+4.2
-1.4
+2.6
-1.6
+1.2
+0.9
-1.2
-0.9
-3.8
+0.1
+2.5
+0.6
1953
+6.2
+5.9
+2.2
-0.1
+3.4
-0.2
-0.3
-0.9
+0.2
+0.8
-2.3
+3.5
+1.5
1954
-0.4
+6.4
+0.6
+3.4
-2.6
+1.0
-0.6
-1.8
+0.7
+2.9
-2.8
+0.1
+0.6
1955
-0.7
+0.3
+1.8
+3.0
+2.0
-3.4
+3.5
+2.2
-1.3
+2.4
-2.1
-5.2
+0.2
1956
+0.1
+3.9
-2.7
-2.5
-0.9
+0.1
-3.0
-1.3
-3.6
-0.1
-0.1
+6.7
-0.3
1957
-1.3
+4.6
+0.5
+3.3
+1.3
+2.4
-0.9
-1.6
+1.7
-3.1
+0.8
+2.5
+0.8

1958

-0.2
-5.2
-3.1
+2.4
-0.8
-2.9
+1.4
-0.1
-0.3
-0.4
+1.0
-5.8
-1.2
1959
+0.2
+0.8
+0.5
+4.2
+4.6
+2.0
+0.5
+2.5
+3.1
+4.3
-1.1
+1.3
+1.9
YEAR
JAN
FEB
MAR
APR
MAY
JUN
JUL
AUG
SEP
OCT
NOV
DEC
ANNUAL
1960
+3.2
+2.7
-8.7
+6.5
-1.2
-0.5
-2.6
+1.5
+1.2
-0.4
+0.8
-7.3
-0.4
1961
-7.6
+0.1
+1.5
-2.9
-2.7
-0.1
+0.1
-0.3
+5.1
+0.8
+1.5
-2.5
-0.6
1962
-2.2
-3.7
-2.1
-0.5
+2.1
-0.5
-3.4
-2.5
-5.6
-0.8
-5.4
-7.3
-2.6
1963
-3.8
-7.1
+1.8
+1.2
-0.8
+0.6
+0.6
+0.1
-1.0
+6.4
+4.5
-6.1
-0.3
1964
+0.2
-3.1
+1.5
-1.2
+4.5
+0.7
+2.9
0
+2.4
+0.2
+5.2
+4.5
+1.5
1965
-2.7
+1.3
-1.8
-1.7
+5.7
-0.1
+1.2
+1.6
+4.7
+0.1
+1.8
+4.2
+1.2
1966
-1.9
-1.1
+2.5
-2.4
-0.9
+3.0
+3.1
+1.6
-1.4
-1.6
+1.8
+0.6
+0.3
1967
+6.1
-2.6
-0.4
+2.2
-5.2
+1.7
-0.8
-0.6
-0.7
+0.7
-3.5
+2.5
-0.1

1968

-4.2
-2.5
+3.2
+2.1
-4.7
-1.1
+0.6
+2.3
0
+1.6
-0.2
-2.4
-0.4
1969
-1.3
-1.8
-3.8
+1.4
+0.5
+0.7
-0.8
-0.5
-0.9
-2.0
-2.3
-2.8
-1.1
YEAR
JAN
FEB
MAR
APR
MAY
JUN
JUL
AUG
SEP
OCT
NOV
DEC
ANNUAL
1970
-8.1
-1.6
-4.8
-1.3
+1.9
-1.0
+0.5
+0.9
+2.1
+2.7
+2.0
+0.2
-0.5
1971
-4.9
+1.2
-2.6
-2.2
-3.5
+1.0
-2.4
-2.0
+3.2
+4.9
-1.0
+6.4
-0.2
1972
+2.1
-3.2
-1.5
-3.6
-0.6
-3.6
+1.1
+0.3
+0.4
-5.1
-3.5
+3.8
-1.1
1973
+2.8
-0.8
+4.9
-0.3
-3.9
+2.2
-0.2
+2.9
+1.7
+1.3
+1.7
+2.0
+1.2
1974
+3.8
-1.3
+0.4
+1.6
-1.5
-1.6
-2.5
-0.5
-3.2
-4.9
+0.1
+2.4
-0.6
1975
+4.0
+2.3
-2.9
-4.0
+3.5
+0.5
-0.4
-0.3
-5.2
+0.7
+5.4
+0.5
+0.3
1976
-3.4
+6.8
+3.9
+1.7
-2.1
+2.9
-1.8
-1.7
-2.3
-3.20
-5.6
-4.7
-0.8
1977
-11.6
-0.3
+5.4
+2.3
+2.0
-2.4
+0.8
+0.9
+2.3
-1.8
+2.0
-1.3
-0.2

1978

-4.1
-9.6
-4.0
-1.9
-2.3
-1.1
-2.6
+2.7
+0.2
-0.1
+0.2
+2.1
-1.7
1979
-1.8
-10.7
+3.4
-1.9
+1.4
-2.6
-1.4
+0.2
0
-1.1
+4.6
+3.9
-0.5
YEAR
JAN
FEB
MAR
APR
MAY
JUN
JUL
AUG
SEP
OCT
NOV
DEC
ANNUAL
1980
+0.3
-3.4
-1.8
+2.0
+2.6
-2.4
+1.7
+3.8
+3.4
-2.0
-2.7
-2.5
-0.1
1981
-5.6
+4.7
-1.1
+2.9
-0.5
+1.0
+0.2
-1.0
-1.0
-3.3
-0.5
-1.0
-0.4
1982
-8.0
-0.3
-1.1
-2.8
+2.0
-3.2
-0.7
-4.4
-2.8
-0.4
+2.6
+6.7
-1.0
1983
+1.1
-0.4
+1.6
-1.8
-2.4
-0.5
+1.2
+2.2
+0.3
-0.3
0
-4.1
-0.3
1984
-5.7
+6.1
-6.0
-2.1
-1.9
+0.3
-2.5
+0.2
-4.1
+4.4
-2.2
+5.6
-0.7
1985
-3.9
+0.5
+2.4
+3.1
+1.1
-3.6
-1.6
-1.6
+0.4
+1.2
+4.2
-3.4
-0.1
1986
-0.4
-3.0
+1.2
-1.0
+2.2
-0.7
-0.9
-3.7
-2.0
0
-3.2
+2.6
-0.7
1987
+0.2
-1.1
+2.1
+0.4
0
+1.5
+1.8
-0.6
+0.3
-5.0
+2.8
+5.8
+0.7

1988

-1.1
+0.8
+1.3
-1.7
-0.2
-0.3
+3.3
+3.2
-2.6
-4.7
+1.2
+1.0
0
1989
+4.3
+1.1
-1.3
-2.1
-1.7
+0.7
-1.2
-0.4
0
+0.7
+0.1
-11.1
-0.9
YEAR
JAN
FEB
MAR
APR
MAY
JUN
JUL
AUG
SEP
OCT
NOV
DEC
ANNUAL
1990
+7.9
+6.1
+3.6
+0.7
-2.8
-0.7
-1.3
-2.4
-3.4
+4.0
+1.8
+5.2
+1.6
1991
+1.7
+5.2
+2.0
+2.0
+5.4
+1.5
+2.0
+1.9
-1.0
+0.9
+1.3
+4.1
+2.2
1992
+2.4
+2.6
-1.5
-0.8
-3.3
-2.4
-2.0
-3.1
-2.0
-4.2
-0.1
+0.6
-1.1
1993
+2.8
-4.6
-5.5
-0.1
+0.2
-0.1
+1.6
+0.2
-1.3
-3.2
-0.8
-1.7
-1.0
1994
-10.2
-5.3
-4.4
+3.1
-3.4
+3.1
+1.9
-3.4
-2.5
-3.8
+3.1
+3.7
-1.5
1995
+3.8
-4.7
+2.2
-2.1
-0.9
+0.2
+2.0
+1.4
-1.0
+1.8
-5.8
-5.3
-0.7
1996
-4.3
-0.7
-5.8
-0.4
-2.3
+2.8
-1.0
+0.4
+0.9
-1.2
-5.1
+4.0
-1.1
1997
+0.1
+6.2
+0.4
-0.3
-0.9
+1.7
+2.8
+2.1
+1.4
+2.2
-0.2
+4.0
+1.6

1998

+10.0
+8.8
+3.9
+3.9
+6.0
+1.2
+1.0
+2.6
+4.7
+1.8
+3.0
+8.0
+4.6
1999
+2.4
+3.8
+0.1
+1.4
+1.8
+1.7
+4.1
+1.8
+3.6
+1.2
+4.8
+3.5
+2.5
YEAR
JAN
FEB
MAR
APR
MAY
JUN
JUL
AUG
SEP
OCT
NOV
DEC
ANNUAL
2000 -0.7 +3.3 +6.5 +1.2 +4.8 +3.7 -0.9 +0.7 -0.3 +1.5 -0.8 -5.4 +1.1
2001 +0.3 +2.9 -2.2 +1.3 +1.8 +3.0 -0.8 +4.9 +0.1 +1.4 +5.6 +6.5 +2.1
2002 +6.3 +5.2 +2.0 +3.5 -0.5 +2.4 +3.7 +5.4 +3.8 -0.3 -1.2 -3.0 +2.3
2003 -5.6 -5.4 -0.2 -0.7 -2.8 -1.4 +0.5 +3.8 +1.9 -1.3 +5.4 0 -0.5
2004 -7.6 -1.5 +1.4 +0.9 +6.9 -0.2 -0.2 +0.6 +3.5 -0.1 +3.1 +0.3 +0.6
2005 -1.1 +0.7 -4.6 +2.0 -4.0 +3.5 +2.4 +4.6 +5.9 +2.4 +3.2 -3.6 +1.0
2006 +8.4 +0.4 +1.5 +2.9 0.0 +0.9 +3.3 +3.0 -0.9 -0.1 +5.0 +6.6 +2.6
2007 +5.5 -7.2 -0.1 -2.9 +2.4 +1.8 -0.6 +2.1 +4.6 +8.4 -0.2 +0.6 +1.2
2008 +3.2 +0.4 +0.8 +2.9 -2.7 +4.3 +1.4 -0.2 +2.5 -0.4 +0.8 +1.9 +1.2
2009 -3.3 +3.1 +0.5 +1.8 +1.0 0.0 -2.2 +2.6 -0.1 -0.2 +5.0 +0.4 +0.7
2010 +0.9 -2.1 +6.1 +4.4 +3.5 +4.6 +3.9 +3.0 +5.0 +1.9 +1.0 -3.7 +2.4
2011 -3.7 +1.0 -0.9 +2.3 +2.5 +1.5 +3.9 +0.1 +2.5