Climatological Report (Monthly)
Issued by NWS Twin Cities, MN

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031
CXUS53 KMPX 012348
CLMEAU

CLIMATE REPORT
NATIONAL WEATHER SERVICE CHANHASSEN MN
645 PM CST MON JAN 01 2018

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

...THE EAU CLAIRE WI CLIMATE SUMMARY FOR THE MONTH OF DECEMBER 2017...

CLIMATE       NORMAL       PERIOD    1981 TO 2010
CLIMATE       RECORD       PERIOD    1893 TO 2017

              WEATHER      OBSERVED  NORMAL    DEPART    LAST YEARS
              VALUE        DATE(S)     VALUE   FROM      VALUE  DATE(S)
                                               NORMAL
................................................................
MONTHLY           REPORT    DECEMBER    2017   EAU       AIRPORT

TEMPS                        ACTUAL    NORMAL    DEPART             RANK
AVG           MAX             23.0      27.1      -4.1   COOLER      29   COLD
AVG           MIN             9.1       10.6      -1.5   COOLER      47   COLD
MONTH         MEAN            16.1      18.8      -2.7   COOLER      35   COLD

DAILY         MAX              58 DEC-04-2017
DAILY         MIN             -18 DEC-31-2017

HDD                          ACTUAL    NORMAL    DEPART             RANK
TOTAL         MONTH           1508      1430       78    COOLER      37   COLD
TOTAL         SEASON          3149      3176      -27    WARMER     NEAR  NORM

CDD                          ACTUAL    NORMAL    DEPART             RANK
TOTAL         MONTH            0         0         0     NORMAL      N/A
TOTAL         ANNUAL          466       579       -113   COOLER      25   COLD

PCP                          ACTUAL    NORMAL    DEPART             RANK
MONTH         TOTAL           0.91      1.00     -0.09   DRIER       52   DRY
ANNUAL        TOTAL          35.33     30.98      4.35   WETTER      32   WET
DAILY         MAX             0.33 DEC-04-2017

SNOW                         ACTUAL     AVG      DEPART             RANK
MONTH         TOTAL           7.3       9.5       -2.2   DRIER       60   DRY
SEASON        TOTAL          10.6      15.8       -5.2   DRIER       47   DRY
DAILY         MAX             1.4 DEC-08-2017
MAX           DEPTH            4  DEC-29-2017

DECEMBER      EXTREMES WARMEST/COLDEST/WETTEST ON RECORD  FOR COMPARISON
EXTREME       DECEMBER     EXTREME   YEAR      DEPART               RANK
DECEMBER      MAX          39.1      1923      12.0      WARMEST      1   WARM
DECEMBER      MAX          12.5      1983      -14.6     COLDEST      1   COLD
DECEMBER      MIN          25.3      2015      14.7      WARMEST      1   WARM
DECEMBER      MIN          -4.4      1985      -15.0     COLDEST      1   COLD
DECEMBER      MEAN         31.2      1931      12.4      WARMEST      1   WARM
DECEMBER      MEAN         4.6       1983      -14.2     COLDEST      1   COLD
DECEMBER      HDD          1043      1931      -387      WARMEST      1   WARM
DECEMBER      HDD          1864      1983      434       COLDEST      1   COLD
DECEMBER      CDD          N/A       NONE      RECORDED  WARMEST      1   WARM
DECEMBER      CDD          N/A       NONE      RECORDED  COLDEST      1   COLD
DECEMBER      PCP          3.84      2015      2.84      WETTEST      1   WET
DECEMBER      PCP          T         1943      -1.00     DRIEST       1   DRY
DECEMBER      SNOW         31.4      1968      21.9      SNOWIEST     1   WET
DECEMBER      SNOW         T         1943      -9.5      DRIEST       1   DRY

WIND               MPH       ACTUAL    NORMAL    DEPART
MONTHLY       AVERAGE---->>   7.7       12.1      -4.4
PEAK GUST     38 MPH NORTHWEST DEC-05-2017
FASTEST 2-MIN 31 MPH NORTHWEST DEC-05-2017

SUNSHINE      (POSSIBLE)
1 MONTH         MIN-GAIN    MIN-LOSS HOUR-GAIN HOUR-LOSS  PCT-GAIN PCT-LOSS
DECEMBER            6         -19       0.1       -0.3       1       -5

SUNSHINE      (POSSIBLE)
3 MONTH         MIN-GAIN    MIN-LOSS HOUR-GAIN HOUR-LOSS  PCT-GAIN PCT-LOSS
OND                 6         -180      0.1       -3.0       1       -44

SUNSHINE      (POSSIBLE)
12 MONTH        MIN-GAIN    MIN-LOSS HOUR-GAIN HOUR-LOSS  PCT-GAIN PCT-LOSS
JAN-DEC            412        -412      6.9       -6.9      100      100

WEATHER                    ACTUAL
TYPE              NCDC     COUNT
1=FOG/MIST                 21
2=FOG DENSE         1      1
3=THUNDER           0      1
4=IP/SLEET                 0
5=HAIL                     0
6=FRZ RAIN                 0
7=BLWG DUST                0
8=HAZE/SMK                 12
9=BLWG SNW                 0

TEMP              NCEI                          AVERAGE
MAXIMUM          NORMAL      ACTUAL   AVERAGE    DEPART
<= 0                           4         1         3       COOLER
<=32                0          24        18        6       WARMER
>=50                           2         1         1       WARMER
>=60                           0         0         0       COOLER
>=70                           0         0         0       NORMAL
>=80                           0         0         0       NORMAL
>=90                0          0         0         0       NORMAL

TEMP              NCEI                          AVERAGE
MINIMUM          NORMAL      ACTUAL   AVERAGE    DEPART
<= -20                         0         0         0       WARMER
<= -10                         4         2         2       COOLER
<= 0                0          7         6         1       COOLER
<= 10                          13        21        -8      WARMER
<= 20                          26        13        13      COOLER
<= 32               0          30        30        1       COOLER
>= 50                          0         0         0       NORMAL
>=60                           0         0         0       NORMAL
>= 70                          0         0         0       NORMAL

PRECIP            NCEI                          AVERAGE
DAYS WITH A      NORMAL      ACTUAL   AVERAGE    DEPART
T (ONLY)                       6         7         -1      DRIER
>= 0.01             9          13        11        2       WETTER
>= 0.10             3          2         4         -2      DRIER
>= 0.25                        1         1         0       DRIER
>= 0.50             0          0         1         -1      DRIER
>= 1.00             0          0         0         0       DRIER

SNOW              NCEI                          AVERAGE
DAYS WITH A      NORMAL      ACTUAL   AVERAGE    DEPART
T (ONLY)                       4         6         -2      DRIER
>= 0.1              9          14        10        4      SNOWIER
>= 1.0              4          3         4         -1      DRIER
>= 1.5                         0         2         -2      DRIER
>= 2.0                         0         2         -2      DRIER
>= 3.0                         0         1         -1      DRIER

3 MONTH LISTING WITH NORMALS...DEPARTURES AND RANKINGS
3-MONTH       DATA         OCTOBER   NOVEMBER  DECEMBER  (OND)
OND           2017         ACTUAL    NORMAL    DEPART               RANK
OND-17        MAX          40.8      42.1      -1.3      COOLER      35   COLD
OND-17        MIN          23.8      24.0      -0.2      COOLER      52   COLD
OND-17        MEAN         32.3      33.1      -0.8      COOLER      43   COLD
OND-17        HDD          2988      2943      45        COOLER      44   COLD
OND-17        CDD          0         4         -4        COOLER     NEAR  NORM
OND-17        PRECIP       4.94      5.18      -0.24     DRIER       63   DRY
OND-17        SNOW         10.6      15.8      -5.2      DRIER       47   DRY

3-MONTH EXTREMES WARMEST/COLDEST/WETTEST ON RECORD  FOR COMPARISON
EXTREME       OND          EXTREME   YEAR      DEPART               RANK
OCT-NOV-DEC   MAX          50.9      1931      8.8       WARMEST      1   WARM
OCT-NOV-DEC   MAX          35.6      1985      -6.5      COLDEST      1   COLD
OCT-NOV-DEC   MIN          34.4      1931      10.4      WARMEST      1   WARM
OCT-NOV-DEC   MIN          13.8      1976      -10.2     COLDEST      1   COLD
OCT-NOV-DEC   MEAN         42.7      1931      9.6       WARMEST      1   WARM
DEC+JAN-17    MEAN         24.8      1976      -8.3      COLDEST      1   COLD
OCT-NOV-DEC   HDD          2044      1931      -899      WARMEST      1   WARM
OCT-NOV-DEC   HDD          3675      1976      732       COLDEST      1   COLD
OCT-NOV-DEC   CDD          44        1953      40        WARMEST      1   WARM
OCT-NOV-DEC   CDD          0         2002      -4        COLDEST      1   COLD
OCT-NOV-DEC   PRECIP       14.54     1911      9.36      WETTEST      1   WET
OCT-NOV-DEC   PRECIP       0.96      1976      -4.22     DRIEST       1   DRY
OCT-NOV-DEC   SNOW         39.9      1996      24.1      SNOWIEST     1   WET
OCT-NOV-DEC   SNOW         T         1913      -15.8     DRIEST       1   DRY

ANNUAL        DATA
JAN-DEC       2017         ACTUAL    NORMAL    DEPART               RANK
JAN-DEC-17    MAX          55.1      55.0      0.1       WARMER     NEAR  NORM
JAN-DEC-17    MIN          35.6      34.2      1.4       WARMER      19   WARM
JAN-DEC-17    MEAN         45.3      44.6      0.7       WARMER      38   WARM
JAN-DEC-17    HDD-ANN      7535      7960      -425      WARMER      25   WARM
JUL-DEC-17    HDD-SEA      3149      3176      -27       WARMER     NEAR  NORM
JAN-DEC-17    CDD          466       579       -113      COOLER      25   COLD
JAN-DEC-17    PRECIP       35.33     30.98     4.35      WETTER      32   WET
JAN-DEC-17    SNOW-ANN     44.2      47.0      -2.8      DRIER       60   DRY
JUL-DEC-17    SNOW-SEA     10.6      15.8      -5.2      DRIER       47   DRY


ANNUAL EXTREMES WARMEST/COLDEST/WETTEST ON RECORD  FOR COMPARISON
JAN-DEC                    EXTREME   YEAR      DEPART               RANK
JAN-DEC       MAX          61.8      1931      6.8       WARMEST      1   WARM
JAN-DEC       MAX          50.4      1951      -4.6      COLDEST      1   COLD
JAN-DEC       MIN          40.6      1931      6.4       WARMEST      1   WARM
JAN-DEC       MIN          29.2      1950      -5.0      COLDEST      1   COLD
JAN-DEC       MEAN         51.2      1931      6.6       WARMEST      1   WARM
JAN-DEC       MEAN         40.0      1950      -4.6      COLDEST      1   COLD
JAN-DEC       HDD-ANN      5973      1931      -1987     WARMEST      1   WARM
JAN-DEC       HDD-ANN      9307      1917      1347      COLDEST      1   COLD
JUL-DEC       HDD-SEA      2129      1931      -1047     WARMEST      1   WARM
JUL-DEC       HDD-SEA      3940      1976      764       COLDEST      1   COLD
JAN-DEC       CDD          1088      1936      509       WARMEST      1   WARM
JAN-DEC       CDD          298       1951      -281      COLDEST      1   COLD
JAN-DEC       PRECIP       53.27     1938      22.29     WETTEST      1   WET
JAN-DEC       PRECIP       16.71     1910      -14.27    DRIEST       1   DRY
JAN-DEC       SNOW-ANN     96.5      1893      49.5      SNOWIEST     1   WET
JAN-DEC       SNOW-ANN     11.8      1958      -35.2     DRIEST       1   DRY
JUL-DEC       SNOW-SEA     39.9      1996      24.1      SNOWIEST     1   WET
JUL-DEC       SNOW-SEA     T         1913      -15.8     DRIEST       1   DRY

NEW DAILY     EXTREME
MAX TEMP      1
COLD MAX      2
MIN TEMP      0
WARM MIN      0
PRECIP        0
SNOW          0

NEW DAILY     RECORDS                LISTING             PREVIOUS
NEW DAILY     SET/TIE      AMOUNT       DATE / YEAR      SET / TIE   OLD  YEAR
WARM MAX      TIE->            58        DEC-04-2017     OLD->       56   1941 1961  2001
COLD MAX      TIE->            -4        DEC-26-2017     TIES->      -4   1933
COLD MAX      NEW->            -1        DEC-27-2017     OLD->        3   1993

$$
CARLYON



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