PUBLIC INFORMATION STATEMENT
NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX
549 PM CDT WED AUG 1 2012
...LOCALLY HEAVY RAIN RETURNS DURING JULY...
...AVERAGE MONTHLY TEMPERATURES FINALLY BELOW NORMAL OVER
MOST OF SOUTHEAST TEXAS...
A WEAK UPPER LEVEL WEAKNESS COUPLED WITH HIGH MOISTURE LEVELS
BROUGHT WIDESPREAD MODERATE TO HEAVY RAIN TO SOUTHEAST TEXAS DURING
JULY. MOST LOCATIONS RECEIVED RAINFALL TOTALS BETWEEN FIVE AND EIGHT
INCHES WITH SEVERAL LOCATIONS RECEIVING MONTHLY TOTALS EXCEEDING 15
INCHES. UNFORTUNATELY...SOME LOCATIONS IN NORTHWEST HARRIS COUNTY
RECEIVED 10 TO 15 INCHES OF RAIN IN JUST A FEW DAYS (JULY 11TH AND
12TH). THE EXCESSIVE RAINFALL PRODUCED FLOODING ON SPRING AND
CYPRESS CREEKS. THE CONROE ASOS REPORTED THE MOST RAIN DURING JULY
WITH 12.88 INCHES. FOUR INCHES OF THE MONTHLY TOTAL FELL IN LESS
THAN TWO HOURS DURING THE EARLY MORNING HOURS ON THE 12TH. IT WAS
CONSIDERABLY DRIER OVER THE NORTHWEST PART OF THE REGION. THE DRIEST
LOCATION ACROSS SOUTHEAST TEXAS WAS WASHINGTON STATE PARK. THIS
LOCATION ONLY RECEIVED 1.28 INCHES OF RAIN DURING JULY. STRONG
STORMS ON THE 22ND BROUGHT WIND DAMAGE TO PARTS OF HOUSTON...
TRINITY...WALKER AND POLK COUNTIES.
IF THERE WAS A SILVER LINING WITH ALL THE RAIN...IT HAD TO BE THE
TEMPERATURES. CLOUDS AND RAINFALL KEPT TEMPERATURES COOLER THAN THE
30 YEAR NORMALS. MOST CLIMATE SITES WERE 1 TO 2 DEGREES COOLER THAN
NORMAL. CLIMATE SITES OVER THE FAR NORTHWEST PART OF SOUTHEAST TEXAS
WERE WARMER AND CLOSER TO THEIR 30 YEAR NORMALS. IT IS THE FIRST
TIME HOUSTON HAS RECORDED BELOW NORMAL TEMPERATURES SINCE OCTOBER
2011 (70.8 DEGREES OR -0.7 DEGREES BELOW NORMAL). THIS WAS THE FIRST
AVERAGE TEMPERATURE FOR JULY TO BE COOLER THAN NORMAL SINCE JULY
2007 (82.2 DEGREES OR -1.4 DEGREES BELOW NORMAL). EVEN THOUGH JULY
2012 WAS NEAR TO SLIGHTLY COOLER THAN NORMAL...THE YEAR TO DATE
AVERAGE TEMPERATURE IS STILL ON PACE TO BE THE WARMEST ON RECORD.
HERE ARE THE FIVE WARMEST YEAR TO DATE AVERAGE TEMPERATURES FOR THE
FOUR FIRST ORDER CLIMATE SITES:
JANUARY 1 THROUGH JULY 31
CITY OF HOUSTON CITY OF COLLEGE
HOUSTON HOBBY GALVESTON STATION
72.5 2012 72.9 2012 73.9 2012 71.8 2012
71.8 1911 72.4 2000 72.6 2000 71.4 2011
71.5 2011 72.1 2011 72.3 2006 71.4 1911
71.4 1953 72.1 1998 72.1 1882 70.9 2009
71.2 2009 71.7 2008 72.1 1999 70.8 1925
THE SUMMER OF 2012 HAS BEEN RELATIVELY BENIGN WHEN COMPARED TO THE
SUMMER OF 2011. THE MOST SIGNIFICANT DIFFERENCE BETWEEN 2011 AND
2012 HAS BEEN THE RAINFALL TOTALS AND THE NUMBER OF DAYS WITH
MEASURABLE RAIN. THE FOLLOWING TABLE WILL CONTRAST THE RAINFALL
TOTALS AND NUMBER OF RAIN DAYS (0.01 INCHES OR GREATER) BETWEEN THE
TWO YEARS:
SITE JUN 2011 JUN 2012 JUL 2011 JUL 2012
CITY OF HOUSTON 0.92 (3) 4.97 (6) 2.98 (10) 4.71 (10)
HOUSTON HOBBY 1.79 (3) 2.78 (7) 3.27 (12) 8.15 (14)
CITY OF GALVESTON 0.94 (5) 4.10 (8) 1.11 (6) 5.60 (12)
COLLEGE STATION 2.87 (2) 2.13 (6) 0.10 (2) 4.56 (11)
THERE HAVE BEEN FEWER 100 DEGREE DAYS THUS FAR IN 2012:
SITE JUN 2011 JUN 2012 JUL 2011 JUL 2012
CITY OF HOUSTON 7 3 4 0
HOUSTON HOBBY 2 3 0 0
COLLEGE STATION 9 5 18 2
THE NUMBER OF DAYS WITH HIGH TEMPERATURES LESS THAN 90 DEGREES ALSO
STRIKES AN INTERESTING CONTRAST BETWEEN YEARS.
SITE JUN 2011 JUN 2012 JUL 2011 JUL 2012
CITY OF HOUSTON 1 5 1 9
HOUSTON HOBBY 1 5 1 10
COLLEGE STATION 1 1 0 4
THE NUMBER OF DAYS WITH LOW TEMPERATURES GREATER THAN OR EQUAL TO 80
DEGREES IS ALSO OF INTEREST:
SITE JUN 2011 JUN 2012 JUL 2011 JUL 2012
CITY OF HOUSTON 5 1 6 0
HOUSTON HOBBY 5 3 2 0
COLLEGE STATION 4 2 2 0
HERE ARE THE JULY CLIMATE STATISTICS FOR THE FIRST AND SECOND ORDER
CLIMATE SITES ACROSS SOUTHEAST TEXAS:
SITE AVG AVG AVG DEP RAIN DEP
HIGH LOW MONTH
IAH 90.9 75.0 82.9 -1.5 4.71 +0.92
HOU 89.9 76.1 83.0 -0.8 8.15 +3.49
GLS 89.4 80.2 84.8 +0.3 5.60 +1.80
CLL 94.4 75.2 84.8 +0.1 4.56 +2.42
CXO 90.6 72.0 81.3 -1.3 12.88 +9.45
UTS 92.5 74.7 83.6 -0.5 4.30 +0.92
SGR 90.3 74.6 82.5 -1.1 7.79 +3.43
DWH 90.4 72.8 81.6 -0.5 12.71 +8.87
LVJ 90.2 75.6 82.9 -0.1 7.73 +3.02
LBX 89.5 73.4 81.5 -0.8 6.17 +1.61
PSX 89.7 78.4 84.0 0.0 5.06 +0.30
HGX 90.5 75.0 82.8 +0.8 8.27 +3.69
HERE ARE SOME JULY RAINFALL TOTALS FROM OUR NETWORK OF CO-OP
OBSERVERS:
LOCATION RAIN
ANAHUAC 11.47
BAY CITY 10.69
BAYTOWN 6.34
BELLVILLE 8.22
BRENHAM 8.85
CLEVELAND 9.60
COLUMBUS 7.20
CONROE 11.97
CROCKETT 4.27
DANEVANG 7.09
EDNA 12.24
EL CAMPO 8.44
FREEPORT 10.87
HUNTSVILLE 4.08
LIBERTY 10.21
LIVINGSTON 6.92
MADISONVILLE 5.89
MATAGORDA 4.73
RICHMOND 5.57
SOMERVILLE 2.11
SUGARLAND 7.03
TOMBALL 11.83
WASH ST PARK 1.28
WHARTON 10.22
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