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Climatological Report (Monthly)
Issued by NWS
Issued by NWS
000
CXUS55 KVEF 021944 AAA
CLMLAS
CLIMATE REPORT
NATIONAL WEATHER SERVICE LAS VEGAS, NV
1244 PM PDT SUN SEP 2 2012
...................................
...THE LAS VEGAS NV CLIMATE SUMMARY FOR THE MONTH OF AUGUST 2012...
CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1937 TO 2012
WEATHER OBSERVED NORMAL DEPART LAST YEAR`S
VALUE DATE(S) VALUE FROM VALUE DATE(S)
NORMAL
................................................................
TEMPERATURE (F)
RECORD
HIGH 116 08/03/1979
08/01/1979
08/11/1940
LOW 54 08/03/1937
HIGHEST 112 08/09 110 2 112 08/24
LOWEST 68 08/23 69 -1 74 08/01
AVG. MAXIMUM 102.9 102.0 0.9 105.8
AVG. MINIMUM 82.3 79.3 3.0 81.9
MEAN 92.6 90.6 2.0 93.9
DAYS MAX >= 90 29 30.0 -1.0 31
DAYS MAX <= 32 0 0.0 0.0 0
DAYS MIN <= 32 0 0.0 0.0 0
DAYS MIN <= 0 0 0.0 0.0 0
PRECIPITATION (INCHES)
RECORD
MAXIMUM 2.59 1957
MINIMUM 0.00 2002
1985
1980
TOTALS 2.28 0.33 1.95 0.01
DAILY AVG. 0.07 0.01 0.06 0.00
DAYS >= .01 4 2.6 1.4 1
DAYS >= .10 3 0.9 2.1 0
DAYS >= .50 1 0.2 0.8 0
DAYS >= 1.00 1 0.0 1.0 0
GREATEST
24 HR. TOTAL 1.98 08/21 TO 08/22
SNOWFALL (INCHES)
RECORDS
TOTAL 0.0 2011
2010
24 HR TOTAL 0.0
TOTALS 0.0 0.0 0.0 0.0
SINCE 7/1 0.0
SNOWDEPTH AVG. 0
DAYS >= TRACE 0
DAYS >= 1.0 0
GREATEST
SNOW DEPTH 0
24 HR TOTAL 0.0 08/31 TO 08/31
STORM TOTAL 0.0
(MM/DD(HH))
DEGREE_DAYS
HEATING TOTAL 0 0 0 0
SINCE 7/1 0 0 0 0
COOLING TOTAL 865 795 70 904
SINCE 1/1 3150 2849 301 2752
FREEZE DATES
RECORD
EARLIEST 10/21/1949
LATEST 04/12/1967
EARLIEST 11/25
LATEST 02/28
.................................................................
WIND (MPH)
AVERAGE WIND SPEED 8.0
HIGHEST WIND SPEED/DIRECTION 29/190 DATE 08/12
HIGHEST GUST SPEED/DIRECTION 40/190 DATE 08/14
SKY COVER
POSSIBLE SUNSHINE (PERCENT) MM
AVERAGE SKY COVER 0.40
NUMBER OF DAYS FAIR 12
NUMBER OF DAYS PC 19
NUMBER OF DAYS CLOUDY 0
AVERAGE RH (PERCENT) 31
WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM 13 MIXED PRECIP 0
HEAVY RAIN 1 RAIN 3
LIGHT RAIN 11 FREEZING RAIN 0
LT FREEZING RAIN 0 HAIL 0
HEAVY SNOW 0 SNOW 0
LIGHT SNOW 0 SLEET 0
FOG 2 FOG W/VIS <= 1/4 MILE 0
HAZE 1
- 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 92.6 +2.0 5TH WARMEST
AVG MAX TEMP 102.9 +0.9 TIED 30TH WARMEST
AVG MIN TEMP 82.3 +3.0 WARMEST EVER
MONTHLY TEMPERATURE EXTREMES AT MCCARRAN
HIGHEST MAXIMUM TEMPERATURE...112 ON THE 9TH
LOWEST MAXIMUM TEMPERATURE...84 ON THE 22ND
HIGHEST MINIMUM TEMPERATURE...88 ON THE 11TH AND 13TH
LOWEST MINIMUM TEMPERATURE...68 ON THE 23RD
EXTREMES ELSEWHERE IN THE LAS VEGAS VALLEY DURING THE MONTH...
LOCATION LOWEST TEMP/DATE HIGHEST TEMP/DATE
--------------------------------------------------------------------
HENDERSON EXEC. ARPT 65 ON 23RD 112 ON 9TH
NELLIS AFB 67 ON 23RD 111 ON 9TH
NORTH LAS VEGAS ARPT 68 ON 23RD 111 ON 9TH
NORTH LAS VEGAS CO-OP 72 ON 23RD 112 ON 9TH/10TH/11TH
NWS OFFICE 66 ON 23RD 114 ON 9TH
* PRECIPITATION AT MCCARRAN INTERNATIONAL AIRPORT
MONTHLY TOTAL...2.28 INCHES
DEPARTURE FROM NORMAL...+1.95 INCHES
NUMBER OF DAYS WITH A TRACE OR MORE...11
NUMBER OF DAYS WITH MEASURABLE - 0.01 INCH - OR MORE...4
NUMBER OF DAYS WITH A THUNDERSTORM...13
WETTEST DAY...1.65 INCHES ON THE 22ND
TOTAL SNOWFALL...0.0 INCH
PRECIPITATION TOTALS WERE HIGHEST IN THE SOUTHEAST PORTION OF THE
VALLEY WHERE SEVERAL LOCATIONS MEASURED OVER 3 INCHES FOR THE MONTH.
THE LOWEST TOTALS WERE IN THE FAR NORTH PORTION OF THE VALLEY WHERE
SOME LOCATIONS SAW JUST UNDER SEVEN-TENTHS OF AN INCH.
LAS VEGAS WASH AT PABCO ROAD 3.86 INCHES CCRFCD
HENDERSON EXECUTIVE AIRPORT 3.55 INCHES AWOS
ANTHEM 3.39 INCHES CCRFCD
TIMET PLANT HENDERSON 3.27 INCHES CCRFCD
PIONEER DETENTION BASIN 3.19 INCHES CCRFCD
DUCK CREEK AT JORAE AVENUE 3.07 INCHES CCRFCD
PITTMAN WASH AT WIGWAM 2.83 INCHES CCRFCD
EAST HENDERSON #2 2.64 INCHES CCRFCD
NWS OFFICE 2.63 INCHES NWS STAFF
ROBINDALE & PECOS 2.58 INCHES COCORAHS
FLAMINGO & BOULDER HIGHWAY 2.20 INCHES COCORAHS
MOUNTAIN`S EDGE 2.20 INCHES NWS EMPLOYEE
EAST LAKE MEAD PARKWAY 2.06 INCHES COCORAHS
TROPICANA & BUFFALO 1.87 INCHES COCORAHS
TENAYA & WASHINGTON 1.84 INCHES COCORAHS
NELLIS AIR FORCE BASE 1.60 INCHES ASOS
NORTH LAS VEGAS AIRPORT 1.49 INCHES ASOS
OAKEY & JONES 1.30 INCHES COCORAHS
SUMMERLIN NORTHWEST 1.26 INCHES CCRFCD
SUMMERLIN 1.24 INCHES COCORAHS
CENTENNIAL HILLS 1.22 INCHES CCRFCD
WEST ALIANTE 1.14 INCHES NWS EMPLOYEE
DOWNTOWN LAS VEGAS 1.02 INCHES CCRFCD
215 & CHEYENNE 0.98 INCH CCRFCD
FLOYD LAMB PARK 0.75 INCH CCRFCD
CRAIG & LOSEE 0.71 INCH CO-OP OBSERVER
ALEXANDER & DURANGO 0.63 INCH CCRFCD
ANN & CAMINO EL NORTE 0.63 INCH CCRFCD
* WIND AT MCCARRAN INTERNATIONAL AIRPORT
AVERAGE WIND SPEED...8.0 MPH
DEPARTURE FROM NORMAL...-1.0 MPH
HIGHEST SUSTAINED WIND...SOUTH AT 29 MPH ON THE 12TH
PEAK WIND GUST...SOUTH AT 40 MPH ON THE 14TH
* NOTABLE EVENTS DURING THE MONTH
THE AVERAGE MINIMUM TEMPERATURE OF 82.3 DEGREES RANKS AS THE WARMEST
EVER FOR LAS VEGAS FOR AUGUST DATING BACK TO 1937. THIS BREAKS THE
PREVIOUS RECORD OF 81.9 DEGREES SET JUST LAST YEAR.
THERE WERE 26 DAYS WITH A HIGH TEMPERATURE IN THE TRIPLE DIGITS
DURING AUGUST. THE NORMAL NUMBER OF SUCH DAYS IN AUGUST IS 21.4
DAYS. A TOTAL OF 4 DAYS HAD HIGH TEMPERATURES OF 110 DEGREES OR
GREATER COMPARED TO THE NORMAL OF 1.5 DAYS.
A RECORD 25 DAYS HAD LOW TEMPERATURES OF 80 DEGREES OR BETTER THIS
MONTH. THIS BROKE THE OLD RECORD OF 23 SUCH DAYS SET IN 2008 AND
TIED IN 2011.
THE TOTAL MONTHLY PRECIPITATION OF 2.28 INCHES RANKS AS THE SECOND
WETTEST AUGUST EVER FOR LAS VEGAS. THE WETTEST AUGUST EVER WAS 2.59
INCHES IN 1957. THE DAILY PRECIPITATION ON AUGUST 22ND OF 1.65
INCHES RANKS AS THE SECOND WETTEST CALENDAR DAY EVER...ONLY BEHIND
AUGUST 21ST 1957 WHEN 2.59 INCHES FELL. FINALLY THE TOTAL OF 1.98
INCHES OF PRECIPITATION THAT FELL IN 24 HOURS FROM AUGUST 21ST
THROUGH 22ND RANKS AS THE 3RD GREATEST 24 HOUR PRECIPITATION TOTAL
FOR LAS VEGAS.
A TOTAL OF 13 DAYS DURING AUGUST HAD THUNDER REPORTED AT MCCARRAN
AIRPORT. THIS BROKE THE OLD RECORD FOR AUGUST AND ANY MONTH OF 12
DAYS SET IN AUGUST 1955. THE NORMAL NUMBER OF THUNDERSTORM DAYS IN
AUGUST IN LAS VEGAS IS 3.3 DAYS.
THE OUTSTANDING EVENT OF THE MONTH IN THE LAS VEGAS VALLEY WAS THE
HEAVY RAIN THAT FELL DURING THE LATE MORNING HOURS OF THE 22ND AND
THE FLASH FLOODING THAT RESULTED. HEAVY THUNDERSTORMS MOVED ACROSS
THE SOUTHEAST PART OF THE LAS VEGAS VALLEY AND DROPPED 1 TO 3 INCHES
OF RAIN IN ROUGHLY A 3 HOUR PERIOD. SIGNIFICANT FLASH FLOODING TOOK
PLACE MAINLY IN HENDERSON WITH LOCAL OFFICIALS CLOSING A NUMBER OF
ROADS. AT LEAST 21 SWIFTWATER RESCUES WERE PERFORMED THROUGHOUT THE
LAS VEGAS VALLEY BY FIRST RESPONDERS. A 17 YEAR OLD BOY WAS KILLED
AFTER HE FELL IN A WASH IN HENDERSON. HIS BODY WAS RECOVERED 2 DAYS
LATER IN THE WETLANDS ON THE EAST SIDE OF THE LAS VEGAS VALLEY A FEW
MILES AWAY FROM WHERE HE FELL. A CHURCH WAS INUNDATED WITH THREE
FEET OF WATER AND SUFFERED DAMAGES OF AT LEAST 500,000 DOLLARS.
THE AVERAGE DEWPOINT WAS 40 DEGREES OR GREATER AT MCCARRAN AIRPORT
FROM JULY 30TH 2012 THROUGH AUGUST 27TH 2012. THIS STRETCH OF 29
CONSECUTIVE DAYS TIED AS THE 5TH LONGEST SUCH STRETCH ON RECORD
DATING BACK TO 1965.
$$
STACHELSKI
- National Weather Service
- Seattle/Tacoma, WA Weather Forecast Office
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