Record Heat
Record Cold
The extreme summer heat and drought in Texas continue to set records. Through Aug. 16, this is the hottest summer on record in Austin (records since 1854) and San Antonio (since 1885). The averages exceed the previous records by over 1°. Del Rio is having its third hottest summer since 1906. Austin and Del Rio have also had 14 consecutive days of 100° temperatures through yesterday, and San Antonio had 12 consecutive 100°+ days through the 12th. As of 3 pm CDT today, the temperature is 97° in Austin and 98° in both San Antonio and Del Rio. Here are the details from the National Weather Service:
JUNE 1ST TO AUGUST 16TH...2009 WAS THE WARMEST
JUNE 1ST TO AUGUST 16TH AT AUSTIN MABRY AND SAN ANTONIO...AND
THE 3RD WARMEST AT DEL RIO. JULY 2009 WAS THE WARMEST JULY AND
MONTH FOR AUSTIN MABRY AND SAN ANTONIO. THE TABLE BELOW COMPARES THE
AVERAGE TEMPERATURE FOR JUNE 1ST TO AUGUST 16TH...2009 WITH THE
WARMEST JUNE TO AUGUST PERIODS FROM THE PAST.
AUSTIN MABRY WARMEST JUNE 1ST TO AUGUST 16TH PERIODS FROM
DAILY CLIMATE DATA FROM 1898 TO 2009...A 77 DAY PERIOD
1. 88.4 JUNE 1 TO AUGUST 16...2009
2. 87.2 JUNE 1 TO AUGUST 16...2008
3. 87.0 JUNE 1 TO AUGUST 16...1998
AUSTIN MABRY WARMEST JUNE TO AUGUST PERIODS FROM MONTHLY DATA
FROM 1854 THROUGH 2008.
1. 86.7 JUNE TO AUGUST 1998 AND 2008
2. 86.2 JUNE TO AUGUST 1925 AND 1980
3. 86.1 JUNE TO AUGUST 1923
4. 85.8 JUNE TO AUGUST 1956 AND 2006
5. 85.7 JUNE TO AUGUST 1886...1918 AND 1954
SAN ANTONIO WARMEST JUNE 1ST TO AUGUST 16TH PERIODS FROM
DAILY CLIMATE DATA FROM 1885 TO 2009...A 77 DAY PERIOD
1. 87.9 JUNE 1 TO AUGUST 16...2009
2. 86.7 JUNE 1 TO AUGUST 16...1998
3. 86.6 JUNE 1 TO AUGUST 16...1980
SAN ANTONIO WARMEST JUNE TO AUGUST PERIODS FROM MONTHLY DATA
FROM 1885 THROUGH 2008.
1. 86.2 JUNE TO AUGUST 1980 AND 1994
2. 86.0 JUNE TO AUGUST 1998
3. 85.9 JUNE TO AUGUST 2006
4. 85.6 JUNE TO AUGUST 1962
5. 85.4 JUNE TO AUGUST 1990
DEL RIO WARMEST JUNE 1ST TO AUGUST 16TH PERIODS FROM DAILY CLIMATE
DATA FROM 1906 TO 2009...A 77 DAY PERIOD
1. 89.9 JUNE 1 TO AUGUST 16...1998
2. 89.8 JUNE 1 TO AUGUST 16...1953
3. 88.9 JUNE 1 TO AUGUST 16...2009
DEL RIO WARMEST JUNE TO AUGUST PERIODS FROM MONTHLY DATA FROM 1906
THROUGH 2008
1. 88.7 JUNE TO AUGUST 1998
2. 88.5 JUNE TO AUGUST 1953
3. 88.4 JUNE TO AUGUST 2001
4. 87.8 JUNE TO AUGUST 1951
5. 87.6 JUNE TO AUGUST 1996
AUGUST 16TH WAS THE 14TH 100 DEGREE DAY IN A ROW AT AUSTIN MABRY AND
DEL RIO. FOR THE FIRST 16 DAYS OF AUGUST 2009 SAN ANTONIO HAD 12 100
DEGREE DAYS IN A ROW FROM THE 1ST TO THE 12TH. THE TOTAL 100 DEGREE
DAYS FOR 2009 SO FAR ARE AS FOLLOWS...57 AT AUSTIN MABRY...46 AT
AUSTIN BERGSTROM INTERNATIONAL AIRPORT...54 AT DEL RIO...
50 AT SAN ANTONIO INTERNATIONAL AIRPORT...AND 60 AT SAN ANTONIO
STINSON FIELD.
IN SOME YEARS...NO 100 DEGREE DAYS WERE OBSERVED. IN THE 1970S...
SAN ANTONIO DID NOT HAVE ANY 100 DEGREE DAYS FROM 1972 TO 1977...AND
IN 1979. IN THE 1970S AUSTIN DID NOT REPORT ANY 100 DEGREE DAYS IN
1973...1975 AND 1979...AND DEL RIO HAD NO 100 DEGREE DAYS IN 1976.
IN 2007 DEL RIO AND SAN ANTONIO DID NOT REPORT ANY 100 DEGREE
DAYS...WHILE AT AUSTIN FOR 2007 THERE WERE 3 100 DEGREE DAYS.
SO FAR IN THE SUMMER OF 2009...EXTREME ALL TIME MONTHLY HIGHS
HAVE NOT BEEN OBSERVED YET...HOWEVER A FEW RECORD DAILY HIGHS AND
RECORD DAILY WARMEST EARLY MORNING LOWS HAVE OCCURRED. THE HEAT FOR
THE SUMMER OF 2009 HAS BEEN OF LONG DURATION...NEARLY CONTINUOUS
FROM EARLY JUNE THROUGH AUGUST 16TH. THE DRYNESS ACROSS THE AREA
SINCE SEPTEMBER 2007 HAS CONTRIBUTED TO THE HEAT THIS SUMMER.
IN THE DRY PERIOD 100 YEARS AGO...THE HIGH OF 107 AT SAN ANTONIO
ON AUGUST 20...1909 WAS THE WARMEST ALL-TIME HIGH UNTIL
AUGUST 19...1986 WHEN THE HIGH WAS 108 AND SEPTEMBER 5...2000...WHEN
THE HIGH WAS 111. DURING THE DRY PERIOD IN 1988...DEL RIO HAD AN
ALL-TIME HIGH OF 112 ON JUNE 12...1988...THAT STILL STANDS TODAY.
AT AUSTIN MABRY THE OLD ALL-TIME HIGH OF 109 JULY 26...1954 AND
AUGUST 18...1923 WAS DURING DRY PERIODS...AND WAS LATER EXCEEDED BY
THE HIGH OF 112 SEPTEMBER 5...2000...IN THE LATE AUGUST TO EARLY
SEPTEMBER OF 2000 HEAT WAVE.
THE HOTTEST DAYS THIS YEAR AS OF AUGUST 16TH ARE LISTED BELOW.
LOCATION HOTTEST DAYS AND DATE
AUSTIN MABRY 106 JUNE 25...JUNE 29...AND JULY 8
AUSTIN BERGSTROM 107 JUNE 25
BURNET 103 JULY 8...JULY 9...AND JULY 16
DEL RIO 107 MAY 6
FREDERICKSBURG 101 JUNE 25...JULY 8...AND JULY 9
HONDO 105 JULY 5 AND JULY 8
KERRVILLE 104 JUNE 29...JULY 5...JULY 8...AND JULY 9
LA GRANGE 105 JUNE 25
LLANO 106 JULY 16 AND 26...AUGUST 5...6...AND 11
NEW BRAUNFELS 107 JUNE 25
PLEASANTON 104 JULY 5 AND AUGUST 12
ROCKSPRINGS 100 JULY 8 AND JULY 9
SAN ANTONIO 104 JUNE 29...JULY 5...JULY 8...AND JULY 9
SAN ANTONIO STINSON 107 JULY 5
SAN MARCOS 106 JUNE 25...JUNE 29...AND JULY 5
UVALDE 108 MAY 8 AND JULY 9
JUNE 1ST TO AUGUST 16TH...2009 IS THE DRIEST SUCH PERIOD AT
SAN ANTONIO WITH ONLY 0.97 INCHES OF RAIN...AND THE 10TH DRIEST AT
AUSTIN MABRY WITH 1.62 INCHES OF RAIN. THE SAME PERIOD IS THE 37TH
DRIEST JUNE 1ST TO AUGUST 16TH AT DEL RIO THIS YEAR...WITH 3.24
INCHES OF RAIN. THE TABLE BELOW LISTS THE DRIEST JUNE TO AUGUST
PERIODS FROM THE BEGINNING OF RECORD THROUGH YEAR 2008.
DRIEST JUNE TO AUGUST FROM 1856 TO 2008 AT AUSTIN MABRY
1. 0.92 JUNE TO AUGUST 1910
2. 1.45 JUNE TO AUGUST 1934
3. 1.49 JUNE TO AUGUST 1977
4. 1.50 JUNE TO AUGUST 1884
5. 1.77 JUNE TO AUGUST 1980
DRIEST JUNE TO AUGUST FROM 1871 TO 2008 AT SAN ANTONIO
1. 1.13 JUNE TO AUGUST 1871
2. 1.81 JUNE TO AUGUST 1911
3. 2.00 JUNE TO AUGUST 1938
4. 2.06 JUNE TO AUGUST 1982
5. 2.29 JUNE TO AUGUST 1910
DRIEST JUNE TO AUGUST FROM 1906 TO 2008 AT DEL RIO
1. 0.28 JUNE TO AUGUST 1956
2. 0.48 JUNE TO AUGUST 2001
3. 0.62 JUNE TO AUGUST 1951
4. 0.65 JUNE TO AUGUST 1952
5. 0.75 JUNE TO AUGUST 1989
YEAR TO DATE RAINFALL THROUGH AUGUST 16TH SHOWS JANUARY TO AUGUST
2009 AS ONE THE DRIER JANUARY TO AUGUST PERIODS SO FAR...WITH
ONLY 7.16 INCHES OF RAIN AT DEL RIO...8.02 INCHES OF RAIN AT
SAN ANTONIO...AND 11.48 INCHES OF RAIN AT AUSTIN MABRY. WITH STILL
15 MORE DAYS IN AUGUST THE FIGURES FOR JANUARY TO AUGUST 2009 COULD
CHANGE.
IN THE MEANTIME...THE DRIEST JANUARY TO AUGUST PERIODS THROUGH
YEAR 2008 ARE LISTED BELOW.
AUSTIN MABRY DRIEST JANUARY TO AUGUST PERIODS 1856 TO 2008
1. 7.51 JANUARY TO AUGUST 1925
2. 8.75 JANUARY TO AUGUST 1954
3. 9.59 JANUARY TO AUGUST 1956
4. 10.06 JANUARY TO AUGUST 1984
5. 10.45 JANUARY TO AUGUST 1917
6. 11.91 JANUARY TO AUGUST 1912
7. 12.01 JANUARY TO AUGUST 1879
8. 12.03 JANUARY TO AUGUST 1963
9. 12.10 JANUARY TO AUGUST 1893
10. 12.14 JANUARY TO AUGUST 1875
SAN ANTONIO DRIEST JANUARY TO AUGUST PERIODS 1871 TO 2008
1. 7.16 JANUARY TO AUGUST 1925
2. 7.49 JANUARY TO AUGUST 1917
3. 8.41 JANUARY TO AUGUST 1871
4. 8.98 JANUARY TO AUGUST 1925
5. 9.24 JANUARY TO AUGUST 1910
6. 9.44 JANUARY TO AUGUST 1996
7. 10.23 JANUARY TO AUGUST 1956
8. 10.24 JANUARY TO AUGUST 1953
9. 10.60 JANUARY TO AUGUST 2006
10. 10.69 JANUARY TO AUGUST 1902
DEL RIO DRIEST JANUARY TO AUGUST PERIODS 1906 TO 2008
1. 0.98 JANUARY TO AUGUST 1956
2. 3.10 JANUARY TO AUGUST 1937
3. 3.47 JANUARY TO AUGUST 1933
4. 4.13 JANUARY TO AUGUST 1967
5. 4.33 JANUARY TO AUGUST 1962
6. 4.55 JANUARY TO AUGUST 1951 AND 2001
7. 4.75 JANUARY TO AUGUST 1953
8. 5.69 JANUARY TO AUGUST 1924
9. 5.89 JANUARY TO AUGUST 1989
10. 6.10 JANUARY TO AUGUST 1952
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