Record Heating Degree Days
(1929-1998)

 

January

 

February

 

March

 

High

 

Low

 

High

 

Low

 

High

 

Low

1. 1923 1977

1. 1128 1933

1. 1760 1936

1. 867 1998

1. 1322 1960

 1. 637 1946

2. 1878 1982

2. 1138 1990

2. 1515 1978

2. 896 1954

2. 1299 1965

2. 684 1945

3. 1829 1994

1944

3. 1472 1967

3. 911 1931

3. 1248 1975

3. 727 1974

4. 1828 1979

4. 1197 1931

4. 1466 1979

4. 942 1987

4. 1238 1932

4. 754 1968

5. 1819 1963

5. 1242 1934

5. 1458 1989

5. 970 1930

5. 1237 1951

5. 764 1938

6. 1804 1978

6. 1250 1939

6. 1427 1965

6. 1001 1992

6. 1200 1969

6. 770 1977

7. 1781 1971

7. 1257 1989

7. 1421 1988

7. 1002 1984

7. 1198 1956

7. 798 1987

8. 1774 1966

8. 1258 1964

8. 1417 1959

8. 1039 1976

8. 1189 1943

8. 818 1990

9. 1746 1970

9. 1268 1992

9. 1414 1972

9. 1040 1961

9. 1159 1984

9. 840 1981

10. 1736 1930

10. 1269 1998

10. 1405 1963

10. 1061 1938

10. 1155 1950

10. 847 1942

 

April

 

May

 

June

 

High

 

Low

 

High

 

Low

 

High

 

Low

1. 702 1975

1. 326 1955

1. 355 1967

1. 66 1977

1. 135 1969

1. 0 1932

2. 688 1961

2. 328 1941

2. 354 1954

2. 85 1988

2. 127 1945

2. 2 1991

3. 679 1953

3. 343 1942

3. 345 1945

3. 88 1936

3. 102 1935

1934

4. 670 1936

4. 344 1977

4. 342 1945

4. 96 1934

4. 92 1985

4. 5 1984

5. 666 1983

5. 366 1998

5. 325 1083

5. 106 1939

5. 82 1947

5. 7 1997

6. 664 1956

6. 372 1987

6. 324 1935

6. 110 1941

6. 77 1982

6. 8 1973

7. 658 1951

1946

7. 316 1974

7. 111 1964

7. 76 1946

7. 10 1988

8. 655 1972

8. 383 1948

8. 312 1966

8. 112 1982

8. 72 1958

8. 11 1987,

9. 640 1965

9. 394 1986

9. 304 1931

9. 113 1951

9. 69 1974

1981, 1976

10. 632 1995

10. 408 1981

10. 303 1997

10. 129 1985

10. 62 1972

1949

 

 

July

 

August

 

SIZE=+1>September

 

High

 

Low

 

High

 

Low

 

High

 

Low

1. 22 1992

0 many, many years

1. 61 1965

0 many, many years

1. 265 1993

1. 62 1948

2. 21 1972

2. 55 1934

2. 261 1974

2. 74 1931

1967

3. 46 1992

3. 256 1965

3. 76 1994

4. 20 1975

1950

4. 240 1942

4. 78 1988

5. 18 1962

1940

5. 236 1975

5. 86 1933

6. 17 1945

6. 42 1967

6. 229 1943

6. 92 1950

7. 15 1971

7. 41 1982

7. 219 1984

7. 102 1987

8. 13 1932

8. 40 1977

8. 217 1991

8. 106 1936

9. 11 1947

1935

9. 208 1962

9. 111 1944

10. 10 1970

10. 39 1994

1951

1941

 

October

 

November

 

December

 

High

 

Low

 

High

 

Low

 

High

 

Low

1. 627 1988

1. 151 1963

1. 1150 1951

1. 653 1931

1. 1814 1983

1. 1002 1931

2. 624 1976

2. 182 1947

2. 1149 1959

2. 694 1994

2. 1638 1989

2. 1057 1959

3. 612 1952

3. 238 1956

3. 1123 1991

3. 700 1990

3. 1623 1963

3. 1061 1965

4. 607 1980

4. 265 1950

4. 1104 1976

4. 714 1963

4. 1613 1976

4. 1069 1939

5. 602 1987

5. 267 1973

5. 1076 1995

5. 733 1987

5. 1531 1950

5. 1091 1941

6. 586 1972

6. 281 1953

6. 1068 1997

6. 735 1944

6. 1523 1972

6. 1110 1994

7. 577 1959

7. 294 1938

7. 1057 1955

7. 736 1934

7. 1521 1958

7. 1133 1979

8. 563 1932

8. 301 1971

8. 1039 1986

8. 741 1975

8. 1489 1945

8. 1151 1987

9. 544 1936

9. 304 1994

9. 1025 1929

9. 744 1953

9. 1483 1977

9. 1164 1982

10. 540 1969

10. 311 1949

10. 1022 1947

10. 762 1941

10. 1469 1934

10. 1182 1974

 

Heating degree days are based on the number of degrees the average temperature is below the base of 65 degrees...ex. An average temperature of 55 degrees would yield 10 heating degree days.

 

Record Cooling Degree Days
(1948-1998)

 

April

 

May

 

June

 

High

 

Low

 

High

 

Low

 

High

 

Low

1. 41 1985

0 many, many years

1. 148 1991

1. 0 1983

1. 286 1995

1. 35 1969

1977

2. 145 1977

2. 1 1997

1991

2. 38 1982

3. 39 1990

3. 118 1962

3. 3 1971

3. 275 1956

3. 53 1958

4. 30 1952

4. 113 1972

4. 4 1975

4. 269 1988

4. 61 1960

5. 29 1970

5. 103 1987

5. 7 1976

5. 261 1954

5. 64 1951

6. 24 1991

6. 101 1988

6. 8 1984

6. 249 1987

6. 71 1965

7. 21 1960

7. 96 1980

7. 12 1968

7. 237 1971

7. 74 1974

8. 20 1980

8. 89 1959

1960

8. 232 1994

8. 84 1985

9. 16 1987

9. 85 1975

9. 14 1950

9. 231 1963

9. 92 1948

1962

10. 82 1964

10. 15 1954

10. 208 1970

10. 100 1993
     

1953

  

 

July

 

August

 

September

 

High

 

Low

 

High

 

Low

 

High

 

Low

1. 428 1955

1. 121 1992

1. 405 1995

1. 89 1950

1. 183 1978

1. 12 1965

2. 416 1980

2. 128 1950

2. 364 1955

2. 100 1977

2. 143 1948

2. 15 1950

3. 383 1987

3. 134 1962

3. 360 1988

3. 102 1992

3. 134 1990

3. 16 1975

4. 375 1983

4. 173 1956

4. 324 1983

4. 112 1951

4. 128 1960

1951

5. 365 1988

5. 183 1965

5. 295 1959

5. 118 1986

5. 126 1985

5. 20 1949

6. 358 1964

6. 184 1958

6. 293 1980

6. 124 1994

1971

6. 23 1974

7. 353 1995

7. 187 1978

7. 284 1969

7. 136 1985

7. 111 1994

7. 30 1956

8. 345 1957

8. 191 1972

8. 272 1978

8. 137 1974

8. 105 1959

8. 33 1977

9. 343 1974

9. 193 1994

9. 262 1949

9. 140 1967

9. 104 1983

1957

10. 331 1989

10. 204 1953

1948

10. 144 1965

10. 101 1996

10. 37 1981

 

October

 

High

 

Low

1. 42 1963

0 many, many years

2. 28 1973

3. 26 1953

4. 25 1968

5. 19 1971

1962

7. 18 1950

8. 15 1975

1958

10. 13 1969

Cooling degree days are based on the number of degrees the average temperature is above the base of 65 degrees...ex. An average temperature of 75 degrees would yield 10 cooling degree days.

Killing Frosts/Freezes
(earliest and latest occurrences of 32 degree or lower temperatures)

 

Latest Spring Freeze: May 27, 1971
Earliest Last Freeze: April 1, 1906
***Average Last Freeze: April 27***
Earliest Fall Freeze: September 13, 1902
Latest First Freeze: November 11, 1900
***Average First Freeze: October 9***
Year Latest Spring First Fall Year Latest Spring First Fall
1897 4/21 10/9 1921 5/16 10/4
1898 4/7 10/6 1922 4/22 10/17
1899 4/10 9/29 1923 4/25 9/14
1900 4/12 11/7 1924 4/20 9/30
1901 4/19 10/4 1925 5/17 10/9
1902 4/26 9/13 1926 4/26 9/25
1903 4/30 10/24 1927 4/23 10/14
1904 4/21 10/6 1928 4/28 9/26
1905 4/18 10/21 1929 5/9 9/18
1906 4/1 10/9 1930 5/17 10/16
1907 5/20 10/8 1931 5/23 11/1
1908 5/3 9/29 1932 4/27 10/5
1909 5/10 10/11 1933 4/27 10/13
1910 5/4 10/22 1934 4/27 10/28
1911 5/4 10/22 1935 5/4 10/4
1912 4/19 9/29 1936 4/23 10/2
1913 4/27 9/23 1937 4/11 10/8
1914 4/20 10/26 1938 4/10 10/24
1915 4/3 10/8 1939 4/13 10/14
1916 4/9 9/29 1940 4/18 no data
1917 4/15 10/6 1941 no data
1918 5/1 9/21 1942 no data
1919 4/26 10/10 1943 5/13 9/17
1920 4/16 10/1 1944 5/6 10/11

 

 

Year Latest Spring First Fall Year Latest Spring First Fall
1945 no data 1976 5/8 10/6
1946 no data 1977 4/8 10/13
1947 no data 1978 5/2 10/28
1948 no data 1979 4/10 10/7
1949 4/24 9/29 1980 4/24 10/12
1950 5/1 9/24 1981 5/10 10/2
1951 4/20 10/8 1982 4/27 10/21
1952 4/13 10/3 1983 5/15 9/23
1953 5/13 10/27 1984 4/22 9/26
1954 5/4 10/18 1985 4/11 10/2
1955 4/7 10/16 1986 4/22 10/15
1956 4/30 10/10 1987 4/5 10/2
1957 4/15 10/11 1988 4/28 10/5
1958 4/29 10/1 1989 5/6 10/3
1959 4/21 10/17 1990 5/11 10/11
1960 5/7 10/19 1991 4/21 9/20
1961 5/2 9/28 1992 5/6 10/16
1962 4/16 10/24 1993 4/21 9/30
1963 5/1 11/1 1994 5/1 11/1
1964 4/15 10/9 1995 4/25 10/16
1965 4/28 10/12 1996 4/28 10/3
1966 5/10 10/12 1997 5/13 10/20
1967 5/20 9/28 1998 4/17  
1968 5/5 10/4 1999    
1969 4/29 10/14 2000    
1970 5/6 10/15 2001    
1971 5/27 10/12 2002    
1972 4/26 9/30 2003    
1973 5/4 11/3 2004    
1974 5/6 9/22 2005    
1975 4/22 10/2 2006    

 

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