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NOUS44 KHGX 101327 CCA  
PNSHGX  
TXZ163-164-176>179-195>200-210>214-226-227-235>238-100900-  
 
PUBLIC INFORMATION STATEMENT...CORRECTED  
NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX  
827 AM CDT SUN SEP 10 2017  
 
...AUGUST 2017 ENDED WITH RECORD RAINFALL FROM TROPICAL STORM HARVEY...  
 
THE MAIN STORY FOR THIS PAST MONTH IS THE HEAVY RAINFALL THAT RESULTED  
FROM THE PASSAGE OF TROPICAL STORM HARVEY. HARVEY BROUGHT FLOODING TO  
MANY PARTS OF SOUTHEAST TEXAS AS THE STORM SPENT THE BETTER PART OF  
FIVE DAYS OVER THE AREA. RAINFALL AVERAGED OVER 30 INCHES ACROSS LARGE  
PORTIONS OF THE AREA AND ISOLATED LOCATIONS RECEIVED 40 TO 50 INCHES.  
 
HARVEY GENERATED MOST OF THE AUGUST RAINFALL FOR MANY LOCATIONS. AT THE  
FIRST- AND SECOND-ORDER CLIMATE SITES, THE STORM'S FIVE-DAY TOTAL WAS  
OVER HALF OF THE TOTAL NORMAL ANNUAL RAINFALL! EQUALLY IMPRESSIVE IS  
FACT THAT RAINFALL FROM TS HARVEY CAUSED MANY OF THE COOP SITES TO  
EXPERIENCE OVER HALF OF THEIR NORMAL ANNUAL RAINFALL FOR JUST THE MONTH  
OF AUGUST.  
 
THE FOLLOWING TABLE SHOWS THE FIVE-DAY RAINFALL FOR TROPICAL STORM  
HARVEY AND COMPARES IT TO THE NORMAL ANNUAL RAINFALL FOR EACH FIRST-  
AND SECOND-ORDER CLIMATE SITE.  
 
   
..HARVEY RAINFALL/ANNUAL COMPARISON FOR THE MAJOR CLIMATE SITES
 
 
TS HARVEY NORM ANNUAL PERCENT OF  
SITE RNFL (INCHES) RAINFALL NORMAL RNFL  
 
HOUSTON 31.26 49.77 62.8  
GALVESTON 22.84 50.76 45.0  
COLLEGE STATION 15.74 40.06 39.3  
HOBBY AIRPORT 37.01 54.65 67.7  
CONROE 21.44 48.49 44.2  
HUNTSVILLE 19.72 46.14 42.7  
DW HOOKS 27.01 50.48 53.5  
SUGAR LAND 22.67 49.48 45.8  
ANGLETON 18.48 50.86 36.3  
PALACIOS 7.84 44.59 17.6  
PEARLAND 34.43 52.69 65.3  
NWS LEAGUE CITY 43.91 56.81 77.3  
 
THE FOLLOWING TABLE COMPARES THE COOP AUGUST RAINFALL TO THE ANNUAL  
PERCENT OF NORMAL RAINFALL.  
 
...COOP AUGUST RAINFALL AND ANNUAL RAINFALL COMPARISON...  
 
AUGUST RNFL NORM ANNUAL PERCENT OF  
SITE (INCHES) RAINFALL NORMAL RNFL  
 
BAYTOWN 52.07 59.92 86.9  
BELLVILLE 6 NNE 22.73 41.72 54.5  
BRENHAM 18.99 45.14 40.7  
COLUMBUS 22.56 43.93 51.4  
CONROE (COOP) 37.31 48.77 76.5  
CROCKETT 10.30 45.18 22.8  
DANEVANG 1 W 16.05 46.38 34.6  
FREEPORT 2 NW 21.96 49.57 44.3  
HOUSTON-N HOUSTON 34.89 52.04 67.0  
HOUSTON-WESTBURY 33.54 51.82 64.7  
HUNTSVILLE (COOP) 25.94 49.08 52.9  
KATY WOLF HILL 38.75 45.53 85.1  
MADISONVILLE 11.07 45.12 24.5  
MONTGOMERY 24.66 46.77 52.7  
RICHMOND 34.65 49.08 70.6  
SOMERVILLE DAM 16.63 38.67 43.0  
WASHINGTON STATE PARK 25.67 41.68 61.6  
WHARTON 26.44 47.21 56.0  
 
BECAUSE HARVEY BROUGHT CLOUDS AND RAINFALL FOR AT LEAST FIVE DAYS TO  
MUCH OF SOUTHEAST TEXAS, THE AVERAGE TEMPERATURES FOR THE MONTH WAS  
ALMOST NORMAL AT MANY CLIMATE SITES. THE STORM ALSO ENDED A DEVELOPING  
DROUGHT SITUATION THAT WAS ESPECIALLY BEING FELT OVER THOSE AREAS TO THE  
NORTH AND WEST OF THE HOUSTON METROPOLITAN AREA.  
 
THE FOLLOWING THREE SECTIONS DETAIL WHAT WAS NOTED FOR AUGUST FROM THE  
U.S. DROUGHT MONITOR, THE TEMPERATURE AND RAINFALL RECORDS, AND THE  
TEMPERATURE AND RAINFALL EXTREME DATA.  
 
U.S. DROUGHT MONITOR...  
THE MONTH OF AUGUST BEGAN WITH ABNORMAL DRYNESS DEVELOPING ACROSS THE  
NORTHWESTERN SET OF COUNTIES WITH MODERATE DROUGHT IN THE WESTERN  
PORTIONS OF BURLESON AND WASHINGTON COUNTIES. BY THE 22ND, ABNORMAL  
DRYNESS HAD SPREAD EAST AND NORTHEASTWARD INTO AREAS EAST OF COLLEGE  
STATION INTO THE HUNTSVILLE AREA. WIDESPREAD HEAVY RAINFALL FROM  
TROPICAL STORM HARVEY BROUGHT FLOODING TO MANY AREAS AND ENDED THE  
DRYING TREND. THE FOLLOWING TABLE LISTS THE ABNORMAL DRY OR DROUGHT  
CONDITIONS BY COUNTY AS NOTED BY THE U.S. DROUGHT MONITOR.  
 
FOR THE WEEK ENDING  
AUGUST 1ST. . .D-0 IN BRAZOS, BURLESON, WASHINGTON, AND AUSTIN COUNTIES  
D-1 IN BURLESON AND WASHINGTON COUNTIES  
 
AUGUST 8TH. . .D-0 IN BRAZOS, BURLESON, WASHINGTON, AND AUSTIN COUNTIES  
 
AUGUST 15TH . .D-0 IN BURLESON, WASHINGTON, AND AUSTIN COUNTIES  
 
AUGUST 22ND . .D-0 IN HOUSTON, MADISON, WALKER, MONTGOMERY, GRIMES,  
BRAZOS, BURLESON, WASHINGTON, AUSTIN, AND COLORADO  
COUNTIES  
D-1 IN COLORADO COUNTY  
 
AUGUST 29TH . .NONE  
 
NOTE, HERE ARE THE U.S. DROUGHT MONITOR RELATIONSHIPS FOR D-0 AND D-1:  
- D-0...ABNORMAL DRYING  
- D-1...MODERATE DROUGHT  
 
RECORD TEMPERATURE AND RAINFALL DATA...  
THERE WERE 28 TEMPERATURE RECORDS AND 11 DAILY RAINFALL RECORDS TIED OR  
SET AT THE FIRST-ORDER CLIMATE SITES IN AUGUST. OF THE RAINFALL RECORDS,  
ALL BUT ONE WERE SET DURING THE TIME TROPICAL STORM HARVEY MOVED ACROSS  
SOUTHEAST TEXAS. THE FOLLOWING IS A LISTING OF THE RECORDS TIED OR SET  
DURING THE MONTH AT COLLEGE STATION (CLL), GALVESTON (GLS), HOBBY  
AIRPORT (HOU), AND HOUSTON (IAH).  
 
...RECORD TEMPERATURE AND RAINFALL DATA FOR AUGUST 2017...  
 
SITE DATE RECORD TYPE NEW RECORD PREV RECORD  
 
CLL 08/07 DAILY RAINFALL 2.62 1.40 IN 1945  
CLL 08/26 LOW MAX TEMP 77 TIED 1959  
CLL 08/27 LOW MAX TEMP 76 78 IN 1923  
CLL 08/27 DAILY RAINFALL 7.45 1.35 IN 1977  
CLL 08/28 DAILY RAINFALL 3.30 2.68 IN 1915  
 
GLS 08/14 HIGH MIN TEMP 84 TIED 2010 & PREV  
GLS 08/15 HIGH MIN TEMP 84 TIED 2012 & PREV  
GLS 08/16 HIGH MIN TEMP 85 TIED 2012  
GLS 08/17 HIGH MIN TEMP 84 TIED 2014 & PREV  
GLS 08/18 HIGH MIN TEMP 84 TIED 2014 & PREV  
GLS 08/26 DAILY RAINFALL 4.12 2.06 IN 1953  
GLS 08/28 LOW MAX TEMP 80 81 IN 1934 & 1915  
GLS 08/29 LOW MIN TEMP 70 TIED 1986 & PREV  
GLS 08/29 LOW MAX TEMP 74 81 IN 1986 & 1948  
GLS 08/29 DAILY RAINFALL 8.64 4.61 IN 1953  
GLS 08/30 LOW MIN TEMP 70 TIED 1946 & PREV  
 
HOU 08/01 HIGH MIN TEMP 80 TIED 2009  
HOU 08/06 HIGH MIN TEMP 80 TIED 2011  
HOU 08/11 HIGH MIN TEMP 81 TIED 2007  
HOU 08/14 HIGH MIN TEMP 81 80 IN 2015  
HOU 08/15 HIGH MIN TEMP 81 80 IN 2010  
HOU 08/16 HIGH MIN TEMP 82 79 IN 2012 & PREV  
HOU 08/17 HIGH MIN TEMP 82 79 IN 2012 & PREV  
HOU 08/19 HIGH MIN TEMP 80 TIED 2011  
HOU 08/21 HIGH MIN TEMP 81 79 IN 2014 & PREV  
HOU 08/26 DAILY RAINFALL 12.07 3.33 IN 1959  
HOU 08/28 LOW MAX TEMP 79 TIED 2001  
HOU 08/28 DAILY RAINFALL 9.41 1.09 IN 1969  
HOU 08/29 LOW MAX TEMP 76 78 IN 2001  
 
IAH 08/08 DAILY RAINFALL 3.61 1.66 IN 1920  
IAH 08/14 HIGH MIN TEMP 81 TIED 1951  
IAH 08/16 HIGH MIN TEMP 82 80 IN 2014 & PREV  
IAH 08/17 HIGH MIN TEMP 81 80 IN 1968 & PREV  
IAH 08/26 DAILY RAINFALL 8.37 1.66 IN 1959  
IAH 08/27 LOW MAX TEMP 77 78 IN 1945  
IAH 08/27 DAILY RAINFALL 16.07 8.32 IN 1945  
IAH 08/28 LOW MAX TEMP 74 79 IN 1936 & 1915  
IAH 08/28 DAILY RAINFALL 4.00 3.88 IN 1915  
IAH 08/29 LOW MAX TEMP 75 76 IN 1895  
 
EXTREME TEMPERATURE AND RAINFALL DATA...  
HERE ARE THE DETAILS OF THE DAILY EXTREME TEMPERATURE AND RAINFALL DATA  
FOR AUGUST 2017 AT THE FIRST- AND SECOND-ORDER SITES, INCLUDING THE COOP  
SITE AT THE NATIONAL WEATHER SERVICE OFFICE IN LEAGUE CITY:  
 
- WARMEST DAILY MAXIMUM TEMPERATURE...101 AT LVJ ON THE 19TH  
- COLDEST DAILY MINIMUM TEMPERATURE... 67 AT CXO ON THE 1ST  
67 AT PSX ON THE 31ST  
- WARMEST DAILY AVERAGE TEMPERATURE... 91 AT HOU ON THE 17TH  
- COOLEST DAILY AVERAGE TEMPERATURE... 69 AT PSX ON THE 28TH  
- HIGHEST DAILY RAINFALL..............16.08 AT HGX ON THE 27TH  
 
THE FOLLOWING TABLE LISTS INDIVIDUAL SITE TEMPERATURE AND RAINFALL  
EXTREMES FOR THE MONTH MEASURED AT AREA AIRPORTS.  
 
AUGUST 2017 EXTREME DATA  
 
DAILY MAX DAILY MIN DAILY AVERAGE TEMP MAX RNFALL  
SITE TMP DATES TMP DATES MAX DATES MIN DATES PCPN DATES  
 
IAH 99 18TH 71 28TH 89 18TH * 73 28TH 16.07 27TH  
GLS 93 16TH 70 30TH * 89 16TH 72 29TH 8.64 29TH  
CLL 100 23RD * 70 31ST * 90 17TH 73 27TH 7.45 27TH  
HOU 100 19TH * 73 29TH * 91 17TH 75 29TH 12.07 26TH  
CXO 98 19TH 67 1ST 88 17TH 71 28TH 11.96 27TH  
UTS 99 19TH * 69 29TH 89 19TH * 71 28TH 11.32 27TH  
DWH 98 20TH * 70 28TH * 89 17TH * 72 28TH 15.49 27TH  
SGR 99 27TH * 72 31ST * 89 17TH 76 29TH 7.13 28TH  
LBX # 96 18TH 72 22ND 88 16TH 76 29TH 5.71 28TH  
PSX 94 23RD 67 31ST * 87 16TH 69 28TH 6.21 25TH  
LVJ 101 19TH 74 31ST * 90 19TH * 75 29TH 11.58 28TH  
HGX 96 19TH * 71 29TH 88 17TH * 73 29TH 16.08 27TH  
 
* NOTE: THE LAST DATE OF OCCURRENCE IS NOTED IN THE TABLE.  
# NOTE: THE ANGLETON/LAKE JACKSON AIRPORT HAS MISSING DATA ON THE  
30TH AND 31ST DUE TO THE SENSOR BECOMING FLOODED FROM RIVER  
FLOODING.  
 
THE FOLLOWING TABLE LISTS THE PRELIMINARY MONTHLY TEMPERATURE AND  
RAINFALL DATA FOR THE FIRST- AND SECOND-ORDER CLIMATE SITES ACROSS  
SOUTHEAST TEXAS IN ADDITION TO THE COOP SITE AT THE LEAGUE CITY NATIONAL  
WEATHER SERVICE OFFICE.  
 
AUGUST 2017 DATA  
 
AVE AVE MONTHLY AVE MONTHLY YEAR-TO-DATE  
SITE HIGH LOW DAILY DEP RAIN DEP RAIN DEP  
 
IAH 91.3 76.0 83.7 -0.9 39.11 +35.35 70.82 +38.95  
GLS 88.8 79.0 83.9 -1.1 26.67 +22.28 50.45 +19.27  
CLL 93.3 75.4 84.4 -0.9 21.02 +18.34 44.16 +18.64  
HOU 93.2 78.2 85.7 +1.5 38.87 +33.81 67.12 +32.02  
CXO 90.2 72.7 81.5 -1.3 24.63 +21.29 50.53 +20.36  
UTS 91.4 75.2 83.3 -1.2 21.35 +18.00 48.38 +19.04  
DWH 91.1 75.2 83.2 +0.6 32.71 +28.01 60.57 +28.48  
SGR 93.4 76.0 84.7 +1.3 29.99 +25.85 65.78 +34.24  
LBX * 91.1 75.7 83.4 +0.8 21.37 +17.74 41.68 +10.40  
PSX 87.7 75.2 81.5 -2.8 13.16 +10.20 34.84 +7.10  
LVJ 92.6 78.2 85.4 +2.1 37.34 +32.99 67.14 +34.04  
HGX 90.4 76.7 83.5 +1.4 47.69 +45.52 75.31 +40.55  
 
* NOTE: THE ANGLETON/LAKE JACKSON AIRPORT HAS MISSING DATA ON THE  
30TH AND 31ST DUE TO THE SENSOR BECOMING FLOODED FORM RIVER  
FLOODING.  
 
THE FOLLOWING TABLE LISTS THE RAINFALL DATA FROM THE VOLUNTEER NETWORK  
OF CO-OP OBSERVERS. NOTE THAT SOME OF THESE NUMBERS ARE INCOMPLETE AND  
MAY BE UPDATED AT A LATER DATE. YEAR-TO-DATE TOTALS REFLECT ANY UPDATES  
TO PREVIOUS MONTHS DURING THE YEAR.  
 
COOP RAINFALL OBSERVATIONS FOR AUGUST 2017  
 
MONTHLY YEAR-TO-DATE  
LOCATION RAIN DEP RAIN DEP  
 
ANAHUAC * * 28.83 -2.99 *  
ANGLETON 2 W * * 26.29 -4.35 *  
BAY CITY WATER WORKS * * 22.51 -4.62 *  
BAYTOWN 52.07 +47.26 90.79 +52.43  
BELLVILLE 6 NNE 22.73 +19.87 45.74 +18.83  
BRENHAM 18.39 +15.46 41.77 +13.88  
CALDWELL * * 25.91 +3.26 *  
CLEVELAND * * 27.99 -1.96 *  
COLUMBUS 22.56 +19.69 50.73 +22.12  
CONROE COOP 37.31 +33.70 65.63 +35.27  
CROCKETT 10.30 +7.27 44.81 +15.50  
CYPRESS * * 29.21 +3.40 *  
DANEVANG 1 W 16.05 +12.54 38.05 +8.65  
EAGLE LAKE RESEARCH CENTER 20.37 N/A 46.45 N/A  
EL CAMPO 14.91 N/A 48.23 N/A  
FREEPORT 2 NW 21.96 +17.94 47.56 +17.86  
HOUSTON-NORTH HOUSTON 34.89 +30.50 65.94 +31.54  
HOUSTON WESTBURY 33.54 +28.84 69.72 +36.37  
HUNTSVILLE COOP 25.94 +22.27 60.49 +29.58  
KATY WOLF HILL 38.75 +35.17 67.13 +38.93  
LAKE LIVINGSTON 18.45 N/A 41.46 N/A  
LIBERTY * * 34.00 -0.51  
LIVINGSTON 2 NNE * * 26.43 -3.00  
MADISONVILLE 11.07 +8.16 36.03 +7.47  
MATAGORDA NO 2 * * 19.23 -5.91  
MONTGOMERY 24.66 +24.66 55.52 +21.30  
NEW CANEY 2 E * * 30.55 +0.20  
RICHMOND 34.65 +30.06 68.70 +38.06  
SOMERVILLE DAM 16.63 +14.13 37.84 +13.47  
SOUTH MADISONVILLE 17.43 N/A 36.26 N/A #  
THOMPSONS 3 WSW * * 26.46 +0.30  
WASHINGTON STATE PARK 25.67 +22.88 50.03 +23.52  
WEST COLUMBIA 1 ESE 16.33 N/A 45.50 N/A  
WHARTON 26.44 +22.51 51.83 +22.49  
 
* NOTE: AUGUST DATA IS UNAVAILABLE FOR THESE SITES. THE YEAR-TO-DATE  
DATA FOR THESE STATIONS HAVE BEEN UPDATED THROUGH THE END OF JULY.  
 
# NOTE: SOUTH MADISONVILLE DID NOT REPORT RAINFALL FOR JUNE OR JULY.  
THE YEAR-TO-DATE TOTAL FOR THE STATION DOES NOT INCLUDE THESE TWO  
MONTHS.  
 

 
 
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