Summer 2006 Climate Information
Summer 2006 began on Wednesday, June 21, 2006 at 726 AM CDT.
Summer officially ends this year on Friday, September 22, 2006
at 1103 PM CDT, when the Fall of 2006 officially begins.
The table below lists a climate summary
at Austin, Del Rio, and San Antonio
for June through September.
The average high and low, based on the latest 30 Year
Normals from 1971 to 2000, are listed for June, July,
August, and September. The All-Time High and All-Time
Low for each month is also listed.
For Precipitation,
the latest 30 Year Normal for 1971 to 2000 is shown under
Average Rainfall, and the All-Time Driest and Wettest
June, July, August and September of Climate Record is
shown.
Austin/Mabry
|
Month
|
High
|
Low
|
All time High
|
All time Low
|
Average Rainfall
|
All Time
Driest
|
All Time
Wettest
|
|
June
|
90.9
|
71.1
|
108
|
51
|
3.81
|
0
|
14.96
|
|
July
|
95.0
|
73.4
|
109
|
57
|
1.97
|
0
|
12.80
|
|
August
|
95.6
|
73.3
|
110
|
58
|
2.31
|
0
|
10.88
|
|
September
|
90.1
|
68.8
|
112
|
41
|
2.91
|
0
|
20.78
|
Austin/Bergstrom
|
Month
|
High
|
Low
|
All time High
|
All time Low
|
Average Rainfall
|
All Time
Driest
|
All Time
Wettest
|
|
June
|
89.9
|
70.2
|
109
|
56
|
3.38
|
Trace
|
15.59
|
|
July
|
94.0
|
71.5
|
106
|
62
|
1.61
|
0
|
9.77
|
|
August
|
94.0
|
70.3
|
108
|
60
|
1.48
|
Trace
|
8.91
|
|
September
|
89.7
|
65.3
|
112
|
45
|
2.63
|
0.02
|
9.36
|
Del Rio
|
Month
|
High
|
Low
|
All time High
|
All time Low
|
Average Rainfall
|
All Time
Driest
|
All Time
Wettest
|
|
June
|
93.7
|
72.1
|
112
|
49
|
2.34
|
Trace
|
13.71
|
|
July
|
96.2
|
74.3
|
111
|
63
|
2.02
|
Trace
|
13.18
|
|
August
|
96.0
|
74.1
|
109
|
62
|
1.59
|
0
|
20.93
|
|
September
|
90.6
|
69.4
|
110
|
43
|
2.06
|
Trace
|
15.79
|
San Antonio
|
Month
|
High
|
Low
|
All time High
|
All time Low
|
Average Rainfall
|
All Time Driest
|
All Time
Wettest
|
|
June
|
91.4
|
71.6
|
107
|
48
|
4.30
|
Trace
|
11.95
|
|
July
|
94.6
|
74.0
|
106
|
60
|
2.03
|
0
|
16.92
|
|
August
|
94.7
|
73.6
|
108
|
57
|
2.57
|
0
|
11.14
|
|
September
|
90.0
|
68.8
|
111
|
41
|
3.00
|
0.01
|
15.78
|
Summer Meteorological Information
ON THE FIRST DAY OF SUMMER THE SUN IS DIRECTLY OVERHEAD
AT THE TROPIC OF CANCER...23.5 DEGREES NORTH LATITUDE...WHEN
THE SUN REACHED ITS HIGHEST ELEVATION IN THE SKY AT LOCAL NOON OVER
THE NORTHERN HEMISPHERE.
ON SUMMERS FIRST DAY...THE LENGTH OF POSSIBLE DAYLIGHT IS THE
LONGEST FOR THE YEAR...WITH
A MAXIMUM OF 14 HOURS AND 7 MINUTES AT AUSTIN...14 HOURS AND 3
MINUTES AT SAN ANTONIO...AND 14 HOURS AND 2 MINUTES
AT DEL RIO. AFTER SUMMERS FIRST DAY...THE LENGTH OF POSSIBLE DAYLIGHT WILL AT
FIRST SHORTEN GRADUALLY...THEN SHORTEN FASTER FROM AUGUST TO
NOVEMBER...AND SHORTEN AT A SLOWER PACE AGAIN FROM NOVEMBER TO
DECEMBER 21ST. BY THE FIRST DAY OF WINTER ON DECEMBER 21ST...DAYS
WILL HAVE SHORTENED TO 10 HOURS AND 12 MINUTES AT AUSTIN...10 HOURS
AND 15 MINUTES AT SAN ANTONIO AND TO 10 HOURS AND 16 MINUTES AT DEL
RIO. THE WINTER OF 2005/2005 BEGINS DECEMBER 21ST...2005
AT 642 AM CST.
ALTHOUGH JUNE 21ST IS THE LONGEST DAY...THE LATEST SUNSETS
WILL BE IN THE LAST SEVERAL DAYS OF JUNE AND FIRST SEVERAL
DAYS OF JULY...DUE TO THE INFLUENCE IN TIME FROM THE PHENOMENA
KNOWN AS THE EQUATION OF TIME. THE SAME PHENOMENA HELPS TO
MAKE THE EARLIEST SUNSETS ARRIVE IN LATE NOVEMBER AND EARLY
DECEMBER...BEFORE THE ARRIVAL OF THE SHORTEST AMOUNT OF POSSIBLE
DAYLIGHT ON THE FIRST DAY OF WINTER...IN LATE DECEMBER.
OVER PARTS OF CENTRAL AND SOUTH CENTRAL TEXAS...JULY AND
AUGUST ARE NEARLY EQUALLY HOT. DEPENDING ON THE STATISTICS
USED...DIFFERENT VIEWPOINTS CAN BE MADE. FROM AN AVERAGE
TEMPERATURE VIEW...JULY IS THE HOTTEST MONTH OF THE YEAR...ALTHOUGH
AUGUST IS NEARLY JUST AS HOT WITH THE AVERAGE TEMPERATURE OF
JUST ONE-TENTH TO TWO-TENTHS OF A DEGREE LESS THAN JULY. AS
SOUTHERLY GULF BREEZES CLIMATOLOGICALLY WEAKEN IN AUGUST...
DAYTIME HIGHS CAN BE HOTTER THAN JULY IN SOME YEARS...WITH
SLIGHTLY COOLER NIGHTS. FROM AN AVERAGE MAXIMUM TEMPERATURE
VIEW...THE LATEST 30 YEAR NORMAL SHOWS AUGUST HIGHS TO BE A LITTLE
WARMER AT AUSTIN MABRY...THE SAME AT AUSTIN BERGSTROM...SLIGHTLY LESS
AT DEL RIO...AND SLIGHTLY WARMER AT SAN ANTONIO FOR AUGUST COMPARED
TO JULY. THE AVERAGE MINIMUM IS LESS IN AUGUST THAN JULY AT ALL 4
LOCATIONS.
THE ALL TIME EXTREMES FOR SUMMER SHOW DIFFERENT VIEWPOINTS ABOUT
SUMMER ALSO. ONE OF THE HOTTEST 5 DAY PERIODS OF ANY SUMMER CAME
SEPTEMBER 1ST TO 5TH...2000.
ON SEPTEMBER 5TH...2000 ALL TIME
CLIMATE HIGHS OF RECORD WERE REACHED AT AUSTIN MABRY...WITH
112...AUSTIN BERGSTROM WITH 112...AND SAN ANTONIO WITH 111. THE ALL
TIME CLIMATE HIGH OF RECORD FOR DEL RIO WAS 112 ON JUNE 9...1988.
THE YEAR 2000 HIGH AT DEL RIO WAS 110 ON SEPTEMBER 6TH.
THE COOLEST LOWS FOR SUMMER...NATURALLY HAVE COME IN MID TO
LATE SEPTEMBER...AT THE END OF SUMMER. THE RECORD LOW
FOR THE SUMMER SEASON IS 45 AT AUSTIN MABRY ON SEPTEMBER
18...1903...47 AT AUSTIN BERGSTROM SEPTEMBER 19...1981...
AND 46 AT SAN ANTONIO SEPTEMBER 19...1981. FOR DEL RIO
THE LOWEST WITHIN THE OFFICIAL SUMMER SEASON WAS 51
ON SEPTEMBER 20...1971. A LOW OF 50 AT DEL RIO WAS OBSERVED
SEPTEMBER 21...1913...USUALLY A DAY THAT OFFICIALLY SIGNALS
THE END OF SUMMER AND BEGINNING OF FALL.
IN THE PAST 30 YEARS SOME NOTEWORTHY JULY EXTREMES HAVE APPEARED.
JULY 1980 AND JULY 1998 TIED AS THE WARMEST MONTH AND
WARMEST JULY OF RECORD FOR SAN ANTONIO. JULY 1998 WAS BY
FAR THE WARMEST MONTH AND WARMEST JULY OF RECORD FOR DEL RIO...WITH
JULY 1980 COMING IN AS THE 2ND WARMEST JULY OF RECORD AT
DEL RIO. AT AUSTIN MABRY JULY 1998 WAS THE 3RD WARMEST
AND JULY 1980 THE 4TH WARMEST JULY OF RECORD. FOR THE AUSTIN
CITY CLIMATE LOCATION...NOW AUSTIN MABRY...THE WARMEST
JULY AND MONTH OF RECORD WAS JULY 1860. AT AUSTIN BERGSTROM
JULY 1980 WAS THE 4TH WARMEST OF RECORD AND JULY 1998 THE 6TH
WARMEST OF RECORD. THE WARMEST JULY OF RECORD AT AUSTIN
BERGSTROM WAS JULY 1954.
MODERATED TEMPERATURES DURING JULY
WERE OBSERVED IN JULY 1976...WHEN THE AREA WAS AFFECTED BY A RAINY
PERIOD FROM EARLY JULY TO AROUND JULY 20TH. JULY 1976 WAS THE
COOLEST OF RECORD FOR DEL RIO AND AUSTIN BERGSTROM.
FOR SAN ANTONIO JULY OF 1976 TIED WITH JULY 1903 FOR THE
COOLEST JULY OF RECORD. AT AUSTIN MABRY JULY 1976 WAS THE
4TH
COOLEST OF RECORD. JULY 1907 WAS THE COOLEST OF RECORD FOR THE
AUSTIN CITY CLIMATE LOCATION...NOW AUSTIN MABRY.
ALTHOUGH MANY SUMMERS OVER PARTS OF CENTRAL AND SOUTH CENTRAL
TEXAS HAVE BEEN HOT AND DRY...LIKE ANY OTHER SEASON OF THE
YEAR...SOME SUMMERS HAVE BEEN VERY WET WITH FLOODING.
JUST IN THE PAST 10 YEARS...FLOODS CAME TO THE AREA IN
JUNE 1993...AUGUST 1994... JUNE 1997...AUGUST 1998...JUNE 2000...
LATE AUGUST OF 2001...AND LATE JUNE TO MID JULY 2002.
DURING A DRY YEAR OVERALL IN 1988...RAINFALL CAME TO THE AREA
IN JUNE...JULY AND AUGUST. BEFORE
SUMMER ENDED IN SEPTEMBER OF 1988...THE REMNANTS OF HURRICANE
GILBERT AFFECTED THE AREA...AND BROUGHT ADDITIONAL RAIN.
The table below lists Sunrise and Sunset Times From June 1st to October 1st.
Note that even though June 21st is the longest day,
the earliest sunrise and latest sunsets do not actually
occur on this day, due to a phenomena known as the
Equation of Time
Dates:Sunrise/Sunset
| Austin
| Del
Rio
| San
Antonio
|
June 1 |
629 AM CST
828 PM CST |
644 AM CST
838 PM CST |
634 AM CST
829 PM CST |
June 15 |
628 AM CST
834 PM CST |
643 AM CST
844 PM CST |
633 AM CST
835 PM CST |
June 21 |
629 AM CDT
836 PM CDT |
644 AM CDT
846 PM CDT |
634 AM CDT
837 PM CDT |
July 1 |
632 AM CDT
837 PM CDT |
647 AM CDT
847 PM CDT |
637 AM CDT
838 PM CDT |
July 15 |
639 AM CDT
834 PM CDT |
654 AM CDT
845 PM CDT |
644 AM CDT
835 PM CDT |
August 1 |
649 AM CDT
825 PM CDT |
703 AM CDT
836 PM CDT |
653 AM CDT
826 PM CDT |
August 15 |
657 AM CDT
813 PM CDT |
712 AM CDT
824 PM CDT |
702 AM CDT
815 PM CDT |
September 1 |
707 AM CDT
754 PM CDT |
721 AM CDT
806 PM CDT |
711 AM CDT
756 PM CDT |
September 15 |
715 AM CDT
737 PM CDT |
728 AM CDT
749 PM CDT |
718 AM CDT
739 PM CDT |
September 23 |
719 AM CDT
726 PM CDT |
732 AM CDT
739 PM CDT |
723 AM CDT
730 PM CDT |
October 1 |
724 AM CDT
717 PM CDT |
737 AM CDT
730 PM CDT |
727 AM CDT
720 PM CDT |
To view the sunrise and sunset for a
specific date and location,
See Complete Sun and Moon Data for One Day from the U.S. Naval Observatory.
|
weather.gov
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