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

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331
CXUS54 KEWX 040212 RRA
CLMAUS

CLIMATE REPORT
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO, TX
0812 PM CST WED JAN 3 2018

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

...THE AUSTIN BERGSTROM CLIMATE SUMMARY FOR THE MONTH OF DECEMBER 2017...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1943 TO 2017

WEATHER         OBSERVED          NORMAL  DEPART  LAST YEAR`S
                 VALUE   DATE(S)  VALUE   FROM    VALUE  DATE(S)
                                          NORMAL
................................................................
TEMPERATURE (F)
HIGHEST            85   12/04                         85  12/28
                                                          12/26
LOWEST             27   12/31                         24  12/19
                        12/13
AVG. MAXIMUM     62.0              63.6    -1.6     64.5
AVG. MINIMUM     38.8              37.2     1.6     45.1
MEAN             50.4              50.4     0.0     54.8
DAYS MAX >= 90      0                                  0
DAYS MAX <= 32      0                                  0
DAYS MIN <= 32     10                                  4
DAYS MIN <= 0       0                                  0

PRECIPITATION (INCHES)
TOTALS           3.65              2.21    1.44     3.11
DAILY AVG.       0.12              0.07    0.05     0.10
DAYS >= .01        10                                  7
DAYS >= .10         4                                  4
DAYS >= .50         3                                  3
DAYS >= 1.00        1                                  1
GREATEST
 24 HR. TOTAL    1.29   12/16 TO 12/16

SNOWFALL (INCHES)
TOTALS            1.3                MM      MM      0.0
SINCE 7/1         1.3                MM      MM      0.0

DEGREE_DAYS
HEATING TOTAL     454               462      -8      352
 SINCE 7/1        661               747     -86      446
COOLING TOTAL      12                10       2       42
 SINCE 1/1       3362              2751     611     3124
.................................................................

WIND (MPH)
AVERAGE WIND SPEED              7.8
HIGHEST WIND SPEED/DIRECTION    31/020    DATE  12/05
HIGHEST GUST SPEED/DIRECTION    37/010    DATE  12/05

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
AVERAGE SKY COVER           0.70
NUMBER OF DAYS FAIR            4
NUMBER OF DAYS PC             10
NUMBER OF DAYS CLOUDY         17

AVERAGE RH (PERCENT)     76

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              1     MIXED PRECIP               0
HEAVY RAIN                1     RAIN                       5
LIGHT RAIN               14     FREEZING RAIN              0
LT FREEZING RAIN          1     HAIL                       0
HEAVY SNOW                0     SNOW                       2
LIGHT SNOW                3     SLEET                      2
FOG                      18     FOG W/VIS <= 1/4 MILE      3
HAZE                      1

-  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 20TH COOLEST AND 18TH WETTEST SINCE
RECORD KEEPING BEGAN.


SEA LEVEL PRESSURE DATA:
HIGHEST SLP 30.64 INCHES ON THE 31TH
LOWEST  SLP 29.80 INCHES ON THE 21ST



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

                                          STATION:   AUSTIN BERGSTROM
                                          MONTH:     DECEMBER
                                          YEAR:      2017
                                          LATITUDE:   30 13 N
                                          LONGITUDE:  97 40 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  76  45  61   8   4   0 0.00  0.0    0  2.8 12 150   M    M   5        16 180
 2  78  41  60   7   5   0 0.00  0.0    0  4.1 17 180   M    M   6 1      20 190
 3  73  54  64  11   1   0 0.02  0.0    0  4.7 15 140   M    M   9 12     17 120
 4  85  68  77  25   0  12    T  0.0    0 11.5 24 190   M    M   7        30 190
 5  71  45  58   6   7   0 0.05  0.0    0 17.3 31  20   M    M  10 1      37  10
 6  45  40  43  -9  22   0 0.93  0.0    0 11.8 22  10   M    M  10 1      27 360
 7  47  32  40 -12  25   0 0.39  1.3    0 11.5 24  10   M    M  10 14     30  10
 8  48  29  39 -12  26   0    T    T    1  4.0 10 190   M    M   5        13 200
 9  67  28  48  -3  17   0 0.00  0.0    0  6.4 20 350   M    M   0        25 360
10  68  30  49  -2  16   0 0.00  0.0    0  4.2 12 210   M    M   2        14 200
11  77  31  54   3  11   0 0.00  0.0    0  5.2 14 190   M    M   5        18 210
12  64  33  49  -2  16   0 0.00  0.0    0  8.4 21  20   M    M   2        27  10
13  62  27  45  -5  20   0 0.00  0.0    0  5.1 16 200   M    M   6        21 210
14  64  39  52   2  13   0 0.00  0.0    0  7.9 22  10   M    M   9        28  20
15  59  37  48  -2  17   0 0.00  0.0    0  6.8 21  10   M    M   8        25  20
16  54  34  44  -6  21   0 1.29  0.0    0  3.1 10 170   M    M   9 1      12 180
17  57  45  51   1  14   0    T  0.0    0  4.2  9 190   M    M  10 1      13 120
18  57  45  51   1  14   0 0.03  0.0    0  3.8 10  10   M    M  10 12     14  90
19  72  57  65  15   0   0 0.86  0.0    0  7.6 20 190   M    M   9 1238   28 250
20  77  45  61  11   4   0 0.00  0.0    0  4.1 10 170   M    M   3 1      15 320
21  78  40  59   9   6   0    T  0.0    0  7.7 21 210   M    M   5 1      28 180
22  73  42  58   9   7   0 0.05  0.0    0 11.3 21 330   M    M  10 1      29 320
23  56  31  44  -5  21   0 0.00  0.0    0  5.4 15 340   M    M   6        21 330
24  63  30  47  -2  18   0 0.00  0.0    0  9.9 30 360   M    M   6 1      34 360
25  55  28  42  -7  23   0 0.00  0.0    0  7.7 14 180   M    M   6        17 180
26  51  41  46  -3  19   0 0.02  0.0    0 11.6 22  10   M    M  10 1      27  20
27  41  38  40  -9  25   0 0.01  0.0    0 16.2 26  20   M    M  10 1      32  10
28  49  38  44  -5  21   0 0.00  0.0    0  7.3 13 360   M    M  10        15  30
29  49  40  45  -4  20   0    T  0.0    0  6.0 12 190   M    M  10 1      14  50
30  64  43  54   5  11   0 0.00  0.0    0  8.0 20  20   M    M  10 1      23  20
31  43  27  35 -14  30   0    T    T    0 17.2 26 360   M    M  10 146    31 360
================================================================================
SM 1923 1203       454  12  3.65     1.3 242.8          M      228
================================================================================
AV 62.0 38.8                               7.8 FASTST   M    M   7    MAX(MPH)
                                 MISC ---->  # 31  20               # 37   10
================================================================================
NOTES:
# LAST OF SEVERAL OCCURRENCES

COLUMN 17 PEAK WIND IN M.P.H.

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



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