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ANNUAL WEATHER SUMMARY FOR MOLINE IL
NATIONAL WEATHER SERVICE QUAD CITIES IA IL
745 PM CST THU JAN 1 1997


...1997 WAS CHARACTERIZED BY NEAR NORMAL TEMPERATURES AND BELOW NORMAL 
PRECIPITATION...


PART 1 OF 3                ...TEMPERATURE...


THE AVERAGE TEMPERATURE FOR 1997 WAS 49.3 DEGREES... OR 0.3 DEGREES 
BELOW THE NORMAL OF 49.6 DEGREES.  THIS PLACES 1997 AS THE 39TH COOLEST 
YEAR ON RECORD.

AVERAGE MAXIMUM FOR 1997 WAS   58.8 DEGREES... NORMAL IS 59.7
AVERAGE MINIMUM FOR 1997 WAS   39.8 DEGREES... NORMAL IS 39.5

HIGHEST TEMPERATURE IN 1997 WAS   98 DEGREES  JUL 26TH
LOWEST  TEMPERATURE IN 1997 WAS  -15 DEGREES  JAN 28TH
LOWEST  MAXIMUM             WAS    1 DEGREE   FEB 12TH
HIGHEST MINIMUM             WAS   78 DEGREES  JUL 26TH

THERE WERE 7 NEW DAILY TEMPERATURE RECORDS ESTABLISHED IN 1997 AND
TWO TIED.  THE FOLLOWING IS A LIST OF THOSE RECORDS.

DATE    NEW RECORD    TYPE RECORD      OLD RECORD/YEAR

JAN  4     64          MAXIMUM         55  IN 1939 AND PREVIOUS YEARS 
APR  9     19          MINIMUM         21  IN 1996
APR 12     35        LOWEST MAX        36  IN 1950
MAY 16     31          MINIMUM         36  IN 1942
MAY 26     56/TIED/  LOWEST MAX        56  IN 1879
JUL 26     78/TIED/  HIGHEST MIN       78  IN 1955 AND PREVIOUS YEARS 
OCT  3     93          MAXIMUM         90  IN 1897
OCT 12     68        HIGHEST MIN       66  IN 1879
NOV 16     27        LOWEST MAX        28  IN 1933


NUMBER OF DAYS IN  1997  WITH A  MAXIMUM  TEMPERATURE OF
                  90 DEGREES OR ABOVE WAS   20 ... MEAN IS  23.5
                  32 DEGREES OR BELOW WAS   49 ... MEAN IS  48.7

NUMBER OF DAYS IN  1997  WITH A  MINIMUM  TEMPERATURE OF
                  32 DEGREES OR BELOW WAS 144 ... MEAN IS 135.1
                   0 DEGREES OR BELOW AS   14 ... MEAN IS  15.9

....................................................................... 

   ...TABLE OF MONTHLY AVERAGE TEMPERATURES AND SOME COMPARISONS...

                                             RECORD         RECORD 
MONTH  1997   NORM    DEPARTURE    1996      WARMEST        COOLEST

JAN    17.2   19.9    MINUS 2.7    20.0    37.6 IN 1880    6.3 IN 1979 
FEB    29.0   24.8    PLUS  4.2    25.2    39.6 IN 1882   10.4 IN 1875 
MAR    40.3   37.4    PLUS  2.9    32.7    49.8 IN 1910   19.9 IN 1960 
APR    46.9   50.4    MINUS 3.5    47.5    58.5 IN 1915   41.4 IN 1874 
MAY    56.1   61.4    MINUS 5.3    58.2    68.9 IN 1977   54.8 IN 1907 
JUN    71.2   71.1    PLUS  0.1    70.8    78.1 IN 1934   65.8 IN 1916 
JUL    74.8   75.2    MINUS 0.4    72.1    85.0 IN 1936   69.2 IN 1891 
AUG    70.9   72.7    MINUS 1.8    72.9    81.0 IN 1947   67.2 IN 1915 
SEP    65.7   64.7    PLUS  1.0    63.4    72.2 IN 1897   58.9 IN 1918 
OCT    54.1   53.0    PLUS  1.1    53.4    64.4 IN 1963   42.6 IN 1925 
NOV    36.7   39.6    MINUS 2.9    32.6    47.4 IN 1931   30.1 IN 1976 
DEC    28.9   25.4    PLUS  3.5    24.8    42.0 IN 1877   13.8 IN 1963

....................................................................... 

         ...TABLE OF SEASONAL AVERAGES AND SOME COMPARISONS...
                                                RECORD       RECORD 
SEASON    1997    NORM   DEPARTURE     1996     WARMEST      COLDEST

WINTER    23.5    23.4    PLUS  0.1    23.7     36.3 IN      14.1 IN 
DEC-FEB   96-97                        95-96    1877-78      1978-79

SPRING    47.8    49.8    MINUS 2.0    46.0     56.4  IN     44.1  IN 
MAR-MAY                                           1977         1960

SUMMER    72.3    73.1    MINUS 0.8    71.9     78.8  IN     68.6  IN 
JUN-AUG                                           1936         1915

FALL      52.2    52.5    MINUS 0.3    49.8     58.7  IN     46.6  IN 
SEP-NOV                                           1931         1976

........................................................................ 

BELOW IS A LIST OF THE MONTHS AND SEASONS IN 1997 AND HOW THEY RANKED 
IN COMPARISON TO PREVIOUS YEARS IN THE QUAD CITIES.

JANUARY ........ 35TH COOLEST        JULY ........ 48TH WARMEST 
FEBRUARY ....... 34TH WARMEST        AUGUST ...... 25TH COOLEST
MARCH .......... 32ND WARMEST        SEPTEMBER ... 50TH WARMEST
APRIL .......... 21ST COOLEST        OCTOBER ..... 51ST WARMEST
MAY ............  7TH COOLEST/TIED/  NOVEMBER .... 39TH COOLEST 
JUNE............ 56TH WARMEST        DECEMBER .... 51ST WARMEST

               WINTER /DEC 96-FEB 97/ ... 56TH WARMEST
               SPRING /MAR-MAY/ ......... 37TH COOLEST
               SUMMER /JUN-AUG/ ......... 37TH COOLEST
               FALL /SEP-NOV/ ........... 60TH COOLEST

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PART 2 OF 3          ...PRECIPITATION / SNOWFALL...


TOTAL PRECIPITATION FOR 1997 WAS 34.92 INCHES...OR 4.16 INCHES BELOW 
THE ANNUAL NORMAL OF 39.08 INCHES. THIS PLACES 1997 AS THE 70TH DRIEST 
YEAR ON RECORD.

NUMBER OF DAYS IN  1997  WITH
     PRECIPITATION OF 0.01 INCH OR MORE ...... 139 ... MEAN IS  113.9
     SNOW / ICE PELLETS 1.0 INCH OR MORE .....  18 ... MEAN IS    9.6
     THUNDERSTORMS ...........................  41 ... MEAN IS   46.9
     HEAVY FOG /VISIBILITY 1/4 MILE OR LESS/..  19 ... MEAN IS   17.4

....................................................................... 

    ...TABLE OF MONTHLY PRECIPITATION AND SOME COMPARISONS...

                                            RECORD          RECORD 
MONTH   1997   NORM   DEPARTURE    1996     WETTEST         DRIEST

JAN     1.96   1.54   PLUS  0.42   2.34     4.63 IN 1916   0.07 IN 1919 
FEB     3.53   1.23   PLUS  2.30   1.11     4.87 IN 1887   0.07 IN 1877 
MAR     1.15   2.98   MINUS 1.83   1.49     7.43 IN 1973   0.17 IN 1885 
APR     2.30   3.90   MINUS 1.60   1.94    11.30 IN 1973   0.32 IN 1895 
MAY     4.87   4.30   PLUS  0.57   9.26    11.43 IN 1974   0.31 IN 1992 
JUN     2.92   4.27   MINUS 1.35   2.35    10.79 IN 1892   0.49 IN 1886 
JUL     1.46   4.95   MINUS 3.49   2.77    11.76 IN 1992   0.14 IN 1936 
AUG     8.15   4.22   PLUS  3.93   2.11    15.23 IN 1987   0.35 IN 1971 
SEP     3.69   4.02   MINUS 0.33   1.10    14.18 IN 1970   0.02 IN 1979 
OCT     1.73   2.93   MINUS 1.20   1.77     9.41 IN 1941   0.01 IN 1964 
NOV     1.40   2.51   MINUS 1.11   0.88     6.77 IN 1992   0.18 IN 1904 
DEC     1.76   2.23   MINUS 0.47   0.76     4.99 IN 1982   0.21 IN 1900 

....................................................................... 
...SNOWFALL...  **NEW RECORD YEARLY SNOWFALL**

SNOWFALL FOR 1997 TOTALED 71.1 INCHES...OR 40.7 INCHES ABOVE THE ANNUAL 
AVERAGE OF 30.4 INCHES.  THIS MAKES 1997 THE SNOWIEST YEAR /JANUARY 
THROUGH DECEMBER/ ON RECORD SURPASSING THE OLD RECORD OF 63.2 INCHES 
SET BACK IN 1972.


...MONTHLY AND GREATEST SNOWFALL / PRECIPITATION TABLE FOR 1997...

        1997     AVERAGE       GREATEST DAILY       GREATEST DAILY 
MONTH  SNOWFALL  SNOWFALL      SNOWFALL IN 1997     PCPN IN 1997

JAN     21.8*      8.1           6.2 ON 15TH        0.58 ON  9TH
FEB     15.0       6.1           3.9 ON 15TH        0.94 ON 20TH
MAR      0.1       5.8           0.1 ON 14TH        0.58 ON  9TH
APR     13.3**     1.0          12.1 ON 11TH        1.21 ON 11TH
MAY     NONE        T              NONE             1.43 ON 26TH
JUN     NONE        T              NONE             1.10 ON  7TH
JUL     NONE        T              NONE             0.51 ON 21ST
AUG     NONE      NONE             NONE             1.43 ON  3RD
SEP     NONE        T              NONE             2.27 ON 16TH
OCT      1.4       0.2           1.4 ON 26TH        0.52 ON 26TH
NOV      4.3       2.2           2.4 ON 15TH        0.38 ON  5TH
DEC     15.2***    7.0           5.7 ON 24TH        0.54 ON 24TH

*   3RD SNOWIEST JANUARY /TIE WITH 1898/
**  SNOWIEST APRIL EVER
*** 10TH SNOWIEST DECEMBER 
....................................................................... 

    ...TABLE OF SEASONAL PRECIPITATION AND SOME COMPARISONS...

                                                   RECORD     RECORD 
SEASON     1997     NORM    DEPARTURE     1996     WETTEST    DRIEST

WINTER     6.25     5.00    PLUS  1.25    3.95     10.18 IN   1.21 IN 
DEC-FEB   96-97                          95-96     1875-76    1919-20

SPRING     8.32    11.18    MINUS 2.86   12.69     25.69 IN   3.09 IN 
MAR-MAY                                              1973       1934

SUMMER    12.53    13.44    MINUS 0.91    7.23     21.18 IN   3.59 IN 
JUN-AUG                                              1902       1886

FALL       6.82     9.46    MINUS 2.64    2.87     20.47 IN   2.87 IN 
SEP-NOV                                              1961       1996

....................................................................... 

BELOW IS A LIST OF THE MONTHS AND SEASONS IN 1997 AND HOW THEY RANKED 
IN COMPARISON TO PREVIOUS YEARS IN THE QUAD CITIES.

JANUARY ...... 40TH WETTEST           JULY ........... 13TH DRIEST 
FEBRUARY .....  6TH WETTEST           AUGUST .........  7TH WETTEST 
MARCH .......  21ST DRIEST            SEPTEMBER ...... 78TH DRIEST 
APRIL ........ 43RD DRIEST            OCTOBER ........ 52ND DRIEST
MAY .......... 37TH WETTEST           NOVEMBER ....... 50TH DRIEST
JUNE ......... 42ND DRIEST            DECEMBER ....... 49TH WETTEST

              WINTER /DEC 96 - FEB 97/ ..... 24TH WETTEST
              SPRING /MAR - MAY/ ........... 49TH DRIEST
              SUMMER /JUN - AUG/ ........... 52ND WETTEST
              FALL /SEP - NOV/ ............. 52ND DRIEST


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PART 3 OF 3          ...DEGREE DAY AND PEAK WIND DATA...


...HEATING AND COOLING DEGREE DAY UNITS /DDU/...


    ...TABLE OF MONTHLY HEATING AND COOLING DEGREE DAY UNITS...

           1997       NORMAL                 1997      NORMAL
MONTH     HEATING     HEATING               COOLING    COOLING

JAN        1474        1398                  ZERO       ZERO
FEB        1000        1126                  ZERO       ZERO
MAR         757         856                  ZERO       ZERO
APR         537         438                     1       ZERO
MAY         277         188                    11         76
JUN           4          10                   196        193

JUL           5        ZERO                   315        316
AUG           2          11                   186        250
SEP          61          73                    87         64
OCT         395         384                    66         12
NOV         838         762                  ZERO       ZERO
DEC        1110        1228                  ZERO       ZERO

ANNUAL     6460        6474                   862        911

......................................................................

PEAK WIND GUST FOR 1997 WAS  79  MPH FROM THE  NORTH  ON AUGUST 3RD. 
THIS FELL JUST SHORT OF THE 81 MPH THUNDERSTORM WIND GUST RECORDED 
AUGUST 21ST 1987 WHICH WAS THE HIGHEST RECORDED WIND GUST EVER AT THE 
MOLINE AIRPORT IN 125 YEARS OF RECORDS.

....................................................................... 


HLADIK

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