Climatological Report (Monthly)
Issued by NWS

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000
CXUS55 KVEF 020752 CCA
CLMLAS

CLIMATE REPORT
NATIONAL WEATHER SERVICE LAS VEGAS, NV
1152 PM PST FRI FEB 1 2013

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

...THE LAS VEGAS NV CLIMATE SUMMARY FOR THE MONTH OF JANUARY 2013...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1937 TO 2013

WEATHER         OBSERVED          NORMAL  DEPART  LAST YEAR`S
                 VALUE   DATE(S)  VALUE   FROM    VALUE  DATE(S)
                                          NORMAL
................................................................
TEMPERATURE (F)
RECORD
 HIGH              77   01/26/1975
 LOW                8   01/13/1963
                        01/25/1937
HIGHEST            65   01/31        68      -3       68  01/04
                        01/22
                        01/21
LOWEST             23   01/15        28      -5       34  01/17
                        01/13                             01/14
                                                          01/12
AVG. MAXIMUM     55.5              58.0    -2.5     61.2
AVG. MINIMUM     35.9              39.4    -3.5     40.1
MEAN             45.7              48.7    -3.0     50.6
DAYS MAX >= 90      0               0.0     0.0        0
DAYS MAX <= 32      0               0.0     0.0        0
DAYS MIN <= 32     11               3.0     8.0        0
DAYS MIN <= 0       0               0.0     0.0        0

PRECIPITATION (INCHES)
RECORD
 MAXIMUM         3.00   1995
 MINIMUM         0.00   1976
                        1972
                        1942
TOTALS           0.43              0.54   -0.11        T
DAILY AVG.       0.01              0.02   -0.01        T
DAYS >= .01         3               3.1    -0.1        0
DAYS >= .10         1               1.5    -0.5        0
DAYS >= .50         0               0.3    -0.3        0
DAYS >= 1.00        0               0.0     0.0        0
GREATEST
 24 HR. TOTAL    0.42   01/25 TO 01/26

SNOWFALL (INCHES)
RECORDS
 TOTAL           16.7   1949
 24 HR TOTAL      9.0
TOTALS              T               0.0     0.0      0.0
SINCE 7/1           T
SNOWDEPTH AVG.      0
DAYS >= TRACE       1
DAYS >= 1.0         0
GREATEST
 SNOW DEPTH         0
 24 HR TOTAL        T   01/28 TO 01/28
 STORM TOTAL        T   01/28 TO 01/28
 (MM/DD(HH))

DEGREE_DAYS
HEATING TOTAL     591               505      86      436
 SINCE 7/1       1264              1352     -88     1345
COOLING TOTAL       0                 0       0        0
 SINCE 1/1          0                 0       0        0

FREEZE DATES
RECORD
 EARLIEST     10/21/1949
 LATEST       04/12/1967
EARLIEST                        11/25
LATEST                          02/28
.................................................................

WIND (MPH)
AVERAGE WIND SPEED              6.6
HIGHEST WIND SPEED/DIRECTION    30/190    DATE  01/10
HIGHEST GUST SPEED/DIRECTION    41/200    DATE  01/27

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
AVERAGE SKY COVER           0.30
NUMBER OF DAYS FAIR           17
NUMBER OF DAYS PC             11
NUMBER OF DAYS CLOUDY          3

AVERAGE RH (PERCENT)     36

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

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

&&

...LAS VEGAS...

RECORDS DATE TO 1937 AT THE OFFICIAL CLIMATE STATION.

* TEMPERATURE AT MCCARRAN INTERNATIONAL AIRPORT

                         OBSERVED     DEPARTURE    RANK
--------------------------------------------------------------------
AVG TEMPERATURE          45.7         -3.0         38TH COLDEST
AVG MAX TEMP             55.5         -2.5         22ND COLDEST
AVG MIN TEMP             35.9         -3.5         27TH WARMEST

MONTHLY TEMPERATURE EXTREMES AT MCCARRAN

HIGHEST MAXIMUM TEMPERATURE...65 ON THE 21ST...22ND AND 31ST
LOWEST MAXIMUM TEMPERATURE...38 ON THE 13TH AND 14TH
HIGHEST MINIMUM TEMPERATURE...50 ON THE 24TH...25TH AND 26TH
LOWEST MINIMUM TEMPERATURE...23 ON THE 13TH AND 15TH

EXTREMES ELSEWHERE IN THE LAS VEGAS VALLEY DURING THE MONTH...

LOCATION               LOWEST TEMP/DATE     HIGHEST TEMP/DATE
--------------------------------------------------------------------
HENDERSON EXEC. ARPT   18 ON 15TH           65 ON 31ST
NELLIS AFB             22 ON 13TH           66 ON 8TH/21ST
NORTH LAS VEGAS ARPT   21 ON 15TH           66 ON 8TH
NORTH LAS VEGAS CO-OP  22 ON 14TH/15TH      67 ON 22ND
NWS OFFICE             19 ON 13TH           65 ON 8TH/21ST/22ND/31ST

* PRECIPITATION AT MCCARRAN INTERNATIONAL AIRPORT

MONTHLY TOTAL...0.43 INCH
DEPARTURE FROM NORMAL...-0.11 INCH
NUMBER OF DAYS WITH A TRACE OR MORE...4
NUMBER OF DAYS WITH MEASURABLE - 0.01 INCH - OR MORE...3
WETTEST DAY...0.36 INCH
NUMBER OF DAYS WITH A THUNDERSTORM...0
TOTAL SNOWFALL...TRACE

MONTHLY PRECIPITATION TOTALS IN THE LAS VEGAS VALLEY WERE HIGHEST ON
THE FAR WEST SIDE OF THE VALLEY AS WELL AS PARTS OF THE NORTH. THE
LOWEST MONTHLY TOTALS WERE IN THE NORTHEAST PART OF THE VALLEY.

ALEXANDER & HUALAPAI          0.71 INCH    CCRFCD
WEST ALIANTE                  0.68 INCH    NWS EMPLOYEE
ANN & CLAYTON                 0.55 INCH    CCRFCD
ANTHEM                        0.55 INCH    CCRFCD
PITTMAN PARK BASIN            0.51 INCH    CCRFCD
SUMMERLIN NORTHWEST           0.51 INCH    CCRFCD
NWS OFFICE                    0.48 INCH    NWS STAFF
SUMMERLIN                     0.47 INCH    COCORAHS
TENAYA & WASHINGTON           0.47 INCH    COCORAHS
TROPICANA & BUFFALO           0.46 INCH    COCORAHS
MOUNTAIN`S EDGE WEST          0.45 INCH    NWS EMPLOYEE
ROBINDALE & PECOS             0.43 INCH    COCORAHS
OAKEY & JONES                 0.42 INCH    COCORAHS
CENTENNIAL HILLS              0.39 INCH    CCRFCD
EAST LAKE MEAD PARKWAY        0.38 INCH    COCORAHS
GREENWAY & HEATHER            0.37 INCH    COCORAHS
NLV - LOSEE & CRAIG           0.37 INCH    CO-OP OBSERVER
EAST LAKE MEAD PARKWAY        0.36 INCH    COCORAHS
NORTH LAS VEGAS AIRPORT       0.36 INCH    ASOS
HENDERSON EXECUTIVE AIRPORT   0.35 INCH    AWIS
DOWNTOWN LAS VEGAS            0.31 INCH    CCRFCD
NELLIS AFB                    0.30 INCH    ASOS
LAKE LAS VEGAS                0.28 INCH    CCRFCD
NELLIS & SAHARA               0.28 INCH    CCRFCD
CHEYENNE PEAKING BASIN        0.12 INCH    CCRFCD

* WIND AT MCCARRAN INTERNATIONAL AIRPORT

AVERAGE WIND SPEED...6.6 MPH
DEPARTURE FROM NORMAL...-0.3 MPH
HIGHEST SUSTAINED WIND...30 MPH FROM THE SOUTH ON THE 10TH
PEAK WIND GUST...41 MPH FROM THE SOUTH-SOUTHWEST ON THE 27TH

* PRESSURE EXTREMES REDUCED TO SEA LEVEL

HIGHEST PRESSURE...30.56 INCHES ON THE 15TH
LOWEST PRESSURE...29.64 INCHES ON THE 10TH

* NOTABLE EVENTS DURING THE MONTH

THERE WERE 11 DAYS WITH A LOW TEMPERATURE OF 32 DEGREES OR BELOW
DURING JANUARY 2013. THIS IS 8 DAYS ABOVE NORMAL AND THE HIGHEST
TOTAL FOR ANY JANUARY SINCE 1991 WHEN THERE WERE ALSO 11 DAYS. THIS
WAS ALSO THE HIGHEST MONTHLY TOTAL OF FREEZES SINCE DECEMBER 1998
WHEN THERE WERE 10 DAYS.

THE HARD FREEZE THAT TOOK PLACE ON THE MORNINGS OF JANUARY
13TH...14TH AND 15TH WAS THE OUTSTANDING EVENT OF THE MONTH.
TEMPERATURES DROPPED AS LOW AS 17 DEGREES IN THE MOUNTAIN`S EDGE
NEIGHBORHOOD ON THE MORNING OF THE 13TH. THE DURATION OF FREEZING
TEMPERATURES RESULTED IN NUMEROUS PIPES BURSTING THROUGHOUT THE
VALLEY AS WELL AS DAMAGE TO POOL PRESSURE VACUUM BREAKERS. MANY
WATERFALLS AND FOUNTAINS FROZE THROUGHOUT THE LAS VEGAS VALLEY
INCLUDING THE LANDMARK CAESARS PALACE FOUNTAIN ON THE STRIP. DAMAGE
ESTIMATES ARE WELL INTO THE THOUSANDS OF DOLLARS FROM THIS EVENT.

ON THE EVENING OF THE 26TH FOG FORMED OVER THE CENTER OF THE LAS
VEGAS VALLEY AND LASTED INTO THE EARLY MORNING HOURS OF THE 27TH.
VISIBILITY AT MCCARRAN INTERNATIONAL AIRPORT DROPPED TO 1/16TH OF A
MILE...THE LOWEST HERE SINCE JANUARY 24TH 2009. ODDLY THE FOG WAS
NOT AS THICK IN OUTLYING PORTIONS OF THE VALLEY.

A FEW SHOWERS MOVED ACROSS THE SOUTH END OF THE VALLEY ON THE
MORNING OF THE 28TH PRODUCING SNOW PELLETS AT MCCARRAN INTERNATIONAL
AIRPORT...THE NATIONAL WEATHER SERVICE OFFICE AND IN THE GREEN
VALLEY AREA OF HENDERSON.

$$
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