Post by SKYSUMMIT on Jun 3, 2013 13:09:54 GMT -6
PUBLIC INFORMATION STATEMENT
NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX
208 PM CDT JUN 3 2013
...RECORD COLD TEMPERATURES GREETED THE MONTH OF MAY...
...THIRD CONSECUTIVE MONTH WITH BELOW AVERAGE TEMPERATURES...
MAY 2013 STARTED OUT ON A VERY COLD NOTE. ON MAY 3RD...THE CITY OF
GALVESTON RECORDED A LOW TEMPERATURE OF 50 DEGREES. THIS WAS A DAILY
AND MONTHLY LOW TEMPERATURE RECORD THAT BESTED THE PREVIOUS MONTHLY
LOW RECORD OF 52 SET ON MAY 4TH OF 1954. THE CITY OF HOUSTON ALSO
ESTABLISHED THREE NEW DAILY MINIMUM TEMPERATURE RECORDS ON THE
3RD...4TH...AND 6TH...WITH A NEW MONTHLY MINIMUM TEMPERATURE RECORD
OF 42 SET ON MAY 4TH. THE 42 DEGREES RECORDED ON THE 4TH IS NOW THE
COLDEST TEMPERATURE EVER RECORDED IN THE MONTH OF MAY FOR THE CITY
OF HOUSTON. COLLEGE STATION ALSO RECORDED THREE NEW DAILY
TEMPERATURE RECORDS ON THE 3RD...4TH...AND 6TH. COLLEGE STATION ALSO
TIED THE COLDEST TEMPERATURE FOR THE MONTH OF MAY WHEN THE
TEMPERATURE DROPPED TO 42 DEGREES ON THE 4TH.
THE MONTH OF MAY IS THE THIRD CONSECUTIVE MONTH IN 2013 WITH BELOW
NORMAL TEMPERATURES FOR THE CITIES OF HOUSTON AND COLLEGE STATION.
WHEN WAS THE LAST TIME THIS PHENOMENA OCCURRED? IT ACTUALLY HAPPENED
RATHER RECENTLY DURING THE WINTER OF 2009 AND 2010...OR MORE
SPECIFICALLY THE MONTHS OF DECEMBER 2009...JANUARY 2010...FEBRUARY
2010...AND MARCH 2010. SO HOW COLD HAS IT BEEN OVER THE LAST THREE
MONTHS? THE CITY OF HOUSTON HAD AN AVERAGE TEMPERATURE OF 67.8
DEGREES WHICH IS THE 30TH COOLEST CLIMATOLOGICAL SPRING IN HISTORY
OF THE CITY. THE COOLEST MARCH THROUGH MAY WAS 64.3 DEGREES IN 1931.
THE FOLLOWING TABLE LISTS THE TOP 30 COOLEST AVERAGE TEMPERATURES FOR
MARCH THROUGH MAY FOR THE CITY OF HOUSTON.
RANK VALUE YEAR RANK VALUE YEAR
1 64.3 1931 16 67.2 1969
2 65.3 1983 17 67.3 1947
3 65.7 1915 18 67.4 1977
4 65.9 1926 19 67.5* 1988
5 66.0* 1895 20 67.5 1912
6 66.0 1970 21 67.6* 1932
7 66.7* 1971 22 67.6 1928
8 66.7 1976 23 67.6 1937
9 66.8 1993 24 67.6 1892
10 66.9 1913 25 67.7* 1917
11 67.0* 1978 26 67.7 1997
12 67.0 1973 27 67.7 1898
13 67.1* 1914 28 67.7 1987
14 67.1 1952 29 67.7 1960
15 67.2* 1924 30 67.8 2013
* NOTE...THESE RECORDS ARE TIED WITH AT LEAST ONE OTHER PREVIOUS
YEAR.
THE FOLLOWING TABLE LISTS THE DEPARTURES FROM NORMAL OF THE AVERAGE
TEMPERATURES FOR THE FOUR FIRST-ORDER CLIMATE STATIONS.
STN MAY 2013 APR 2013 MAR 2013
CLL -1.8 -2.1 -0.9
IAH -1.9 -2.9 -1.5
HOU -2.1 -2.0 -0.8
GLS -3.2 -2.3 +0.3
THE FOLLOWING TABLE SHOWS THE LAST TIME THERE WERE THREE MONTHS OF
BELOW NORMAL TEMPERATURES OF -0.5 DEGREES OR MORE.
STN DATES
CLL DEC 2009 - MAR 2010
IAH DEC 2009 - MAR 2010
HOU DEC 2009 - MAR 2010
GLS* NOV 2010 - FEB 2011
* NOTE...GLS ONLY HAD TWO CONSECUTIVE MONTHS OF BELOW NORMAL AVERAGE
TEMPERATURES DURING THIS PERIOD.
POSSIBLY HOW MUCH RAINFALL HAS REPLENISHED AREA RESERVOIRS IN
SOUTHEAST TEXAS? THE FOLLOWING TABLE LISTS DATA FROM
HTTP://WWW.WATERDATAFORTEXAS.ORG/RESERVOIRS/STATEWIDE.
RESERVOIR DATE AND PERCENTAGE FULL
HOUSTON COUNTY LAKE MAY 30TH - 98.1 PERCENT FULL
APR 30TH - 99.3 PERCENT FULL
LAKE LIVINGSTON MAY 30TH - 100 PERCENT FULL
APR 30TH - 100 PERCENT FULL
LAKE CONROE MAY 30TH - 88.8 PERCENT FULL
APR 30TH - 85.1 PERCENT FULL
LAKE SOMERVILLE MAY 30TH - 85.0 PERCENT FULL
APR 30TH - 85.1 PERCENT FULL
LAKE HOUSTON MAY 30TH - 100 PERCENT FULL
APR 30TH - 100 PERCENT FULL
THE FOLLOWING TABLE LISTS THE ALL TIME RECORD LOWS FOR MAY FOR THE
CITIES OF GALVESTON...HOUSTON...AND COLLEGE STATION. NOTE THAT THE
STATION IDENTIFIER IS USED TO REPRESENT PREVIOUS CITY SITES AS WELL.
...ALL TIME RECORD LOWS FOR MAY...
SITE OLD RECORD NEW RECORD
CLL 42 IN 1954 42 IN 2013
IAH 44 IN 1978 42 IN 2013
GLS 52 IN 1903 50 IN 2013
THREE RECORD LOWS WERE SET IN THE MONTH OF MAY FOR THE CITIES OF
HOUSTON AND COLLEGE STATION. THE FOLLOWING TABLE SHOWS THE LAST TIME
AT LEAST THREE RECORD LOWS WERE SET FOR ONE MONTH AT BOTH IAH AND CLL.
SITE YEAR DATES
CLL 2002 MAR 4 - 6
IAH* 2004 AUG 13 - 16
* NOTE THAT FOUR RECORD LOWS HAVE BEEN SET SO FAR THIS YEAR AT IAH.
THE LAST TIME THIS OCCURRED WAS IN 2004 AND 2000.
NOW FOR THE GENERAL MONTHLY CLIMATE DATA. THE FOLLOWING TABLE LISTS
THE MONTHLY CLIMATE DATA FOR THE FIRST AND SECOND-ORDER CLIMATE SITES
IN THE NWS HOUSTON/GALVESTON COUNTY WARNING AREA FOR THE MONTH OF
MAY.
SITE AVG AVG AVG DEP RAIN DEP
HIGH LOW MONTH
IAH 85.0 66.0 75.5 -1.4 1.02 -4.07
GLS 79.9 69.5 74.7 -2.9 1.12 -3.20
CLL 85.3 64.4 74.8 -1.4 6.73 +2.40
HOU 83.5 67.2 75.4 -1.6 2.96 -1.79
CXO 84.2 61.4 72.8 -1.6 2.50 -2.42
UTS 84.5 63.7 74.1 -2.0 7.28 +2.74
DWH 84.9 64.5 74.7 -1.1 1.00 -3.77
SGR 84.5 66.1 75.3 -1.1 2.76 -1.87
LBX 82.9 65.2 74.0 -1.5 0.97 -3.06
PSX 83.8 70.0 76.9 -0.2 0.55 -3.66
LVJ 82.3 66.0 74.2 -1.9 1.90 -2.64
HGX 82.2 66.1 74.1 -1.0 2.14 -2.51
$$
