Climatological Report (Monthly)
Issued by NWS Austin/San Antonio, TX

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CXUS54 KEWX 040223 CCA
CLMDRT

CLIMATE REPORT
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO, TX
823 PM CST WED JAN 3 2018

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

...THE DEL RIO CLIMATE SUMMARY FOR THE MONTH OF DECEMBER 2017...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1906 TO 2017

WEATHER         OBSERVED          NORMAL  DEPART  LAST YEAR`S
                 VALUE   DATE(S)  VALUE   FROM    VALUE  DATE(S)
                                          NORMAL
................................................................
TEMPERATURE (F)
HIGHEST            79   12/02                         80  12/25
LOWEST             30   12/31                         26  12/19
AVG. MAXIMUM     61.9              64.0    -2.1     62.5
AVG. MINIMUM     41.8              40.8     1.0     46.2
MEAN             51.8              52.4    -0.6     54.4
DAYS MAX >= 90      0                                  0
DAYS MAX <= 32      0                                  0
DAYS MIN <= 32      2                                  2
DAYS MIN <= 0       0                                  0

PRECIPITATION (INCHES)
TOTALS           1.74              0.65    1.09     2.48
DAILY AVG.       0.06              0.02    0.04     0.08
DAYS >= .01         7                                  7
DAYS >= .10         2                                  3
DAYS >= .50         2                                  3
DAYS >= 1.00        1                                  0
GREATEST
 24 HR. TOTAL    1.27   12/06 TO 12/07

SNOWFALL (INCHES)
TOTALS              T               0.0     0.0      0.0
SINCE 7/1           T               0.0     0.0      0.0

DEGREE_DAYS
HEATING TOTAL     409               394      15      333
 SINCE 7/1        560               591     -31      402
COOLING TOTAL      10                 3       7       12
 SINCE 1/1       3579              3375     204     3591
.................................................................

WIND (MPH)
AVERAGE WIND SPEED              5.9
HIGHEST WIND SPEED/DIRECTION    25/280    DATE  12/08
HIGHEST GUST SPEED/DIRECTION    33/280    DATE  12/08

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
AVERAGE SKY COVER           0.50
NUMBER OF DAYS FAIR           13
NUMBER OF DAYS PC              5
NUMBER OF DAYS CLOUDY         11

AVERAGE RH (PERCENT)     76

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              0     MIXED PRECIP               0
HEAVY RAIN                0     RAIN                       3
LIGHT RAIN                8     FREEZING RAIN              0
LT FREEZING RAIN          0     HAIL                       0
HEAVY SNOW                0     SNOW                       0
LIGHT SNOW                0     SLEET                      1
FOG                      17     FOG W/VIS <= 1/4 MILE      4
HAZE                      2

-  INDICATES NEGATIVE NUMBERS.
R  INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T  INDICATES TRACE AMOUNT.

$$

MONTHLY CLIMATE SUMMARY:
DECEMBER 2017 WAS THE 48TH COOLEST AND 13TH WETTEST SINCE RECORD KEEPING BEGAN.

SEA LEVEL PRESSURE DATA:
HIGHEST SLP 30.60 INCHES ON THE 31TH
LOWEST  SLP 29.73 INCHES ON THE 21TH

PRELIMINARY LOCAL CLIMATOLOGICAL DATA (WS FORM: F-6)

                                          STATION:   DEL RIO
                                          MONTH:     DECEMBER
                                          YEAR:      2017
                                          LATITUDE:   29 22 N
                                          LONGITUDE: 100 55 W

  TEMPERATURE IN F:       :PCPN:    SNOW:  WIND      :SUNSHINE: SKY     :PK WND
================================================================================
1   2   3   4   5  6A  6B    7    8   9   10  11  12  13   14  15   16   17  18
                                     12Z  AVG MX 2MIN
DY MAX MIN AVG DEP HDD CDD  WTR  SNW DPTH SPD SPD DIR MIN PSBL S-S WX    SPD DR
================================================================================

 1  78  54  66  11   0   1 0.00  0.0    0  8.1 17 140   M    M   2        24 150
 2  79  54  67  12   0   2 0.00  0.0    0  7.0 14 150   M    M   1 1      17 160
 3  78  61  70  16   0   5 0.00  0.0    0  8.6 21 160   M    M   5 1      25 150
 4  76  57  67  13   0   2 0.00  0.0    0  6.3 16 150   M    M   4 1      19 140
 5  63  51  57   3   8   0    T  0.0    0  8.4 21 300   M    M   8 12     26 310
 6  51  42  47  -7  18   0 0.52  0.0    0  6.8 16 350   M    M  10 1      21 350
 7  42  35  39 -15  26   0 1.11    T    0   M   M   M   M    M  10 14      M  M
 8  56  32  44  -9  21   0 0.00  0.0    0  8.1 25 280   M    M   M        33 280
 9  69  38  54   1  11   0 0.00  0.0    0  9.9 20 290   M    M   M        25 290
10  69  35  52  -1  13   0 0.00  0.0    0  2.5 12 280   M    M   0        14 280
11  67  36  52  -1  13   0 0.00  0.0    0  2.7  8 330   M    M   0        11 350
12  66  38  52   0  13   0 0.00  0.0    0  6.9 17 280   M    M   0        22 280
13  57  36  47  -5  18   0 0.00  0.0    0  2.6  8 140   M    M   0        10 150
14  62  40  51  -1  14   0 0.00  0.0    0  4.9 10  10   M    M   3        16 360
15  57  40  49  -3  16   0 0.02  0.0    0  4.3 10  20   M    M   3        15  30
16  48  41  45  -7  20   0 0.01  0.0    0  9.1 16 120   M    M   8 18     21 110
17  51  45  48  -4  17   0 0.00  0.0    0  3.5 10 160   M    M  10 1      14 140
18  53  48  51  -1  14   0 0.00  0.0    0  3.5 12 140   M    M  10 1      14 140
19  61  42  52   0  13   0 0.00  0.0    0  4.4 13 300   M    M   7 12     15 280
20  76  38  57   5   8   0 0.00  0.0    0  4.5 12 160   M    M   1 12     14 110
21  77  43  60   8   5   0 0.00  0.0    0  5.9 13 100   M    M   0        17 100
22  66  46  56   4   9   0 0.03  0.0    0  7.3 23 300   M    M   7 12     31 300
23  62  34  48  -3  17   0 0.00  0.0    0  5.8 12 300   M    M   0        14 130
24  75  36  56   5   9   0 0.00  0.0    0  4.6 16  40   M    M   0        22  30
25  55  34  45  -6  20   0 0.00  0.0    0  9.2 17 150   M    M   1        23 140
26  53  42  48  -3  17   0 0.01  0.0    0  3.9  9 100   M    M   8 1      14 100
27  52  39  46  -5  19   0 0.04  0.0    0  8.0 17 290   M    M  10 1      20 300
28  46  39  43  -8  22   0 0.00  0.0    0  2.7  6  90   M    M  10         8 270
29  53  44  49  -2  16   0 0.00  0.0    0  6.4 12 140   M    M  10 1      14 120
30  66  46  56   5   9   0 0.00  0.0    0  3.8  9 100   M    M   6 1      14 320
31  54  30  42  -9  23   0    T  0.0    0  7.1 18  10   M    M  10 18     26  10
================================================================================
SM 1918 1296       409  10  1.74    T    176.8          M      144
================================================================================
AV 61.9 41.8                               5.9 FASTST   M    M   5    MAX(MPH)
                                 MISC ---->  # 25 280               # 33  280
================================================================================
NOTES:
# LAST OF SEVERAL OCCURRENCES

COLUMN 17 PEAK WIND IN M.P.H.

SYMBOLS USED IN COLUMN 16
1 = FOG OR MIST
2 = FOG REDUCING VISIBILITY
3 = THUNDER
4 = ICE PELLETS
5 = HAIL
6 = FREEZING RAIN OR DRIZZLE
7 = DUSTSTORM OR SANDSTORM:
8 = SMOKE OR HAZE
9 = BLOWING SNOW
X = TORNADO

[REMARKS]
DATA OUTAGE FROM DEC 7-9TH RESULTED IN SOME MISSING VALUES ON DEC 7TH.
#FINAL-12-17#


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