Thursday, October 28, 2010

Super Dry October

I have not recorded any measurable rainfall in Helotes this month.

This was just posted from our local NOAA office
:

Statement as of 3:47 PM CDT on October 28, 2010


... October 2010 has so far been one of the drier octobers of record...

After the 2nd wettest September at Austin Mabry and the 6th wettest
September at San Antonio... October of 2010 is shaping up to be one
of the drier octobers at Austin... del Rio... and San Antonio.

So far October 2010 through today has been the 3rd driest October at
Austin Bergstrom since October 1942... the 5th driest at Austin Mabry
since 1856... a tie for the 3rd driest October at del Rio since
1906... and a tie for the 8th driest October at San Antonio since 1871.
The forecasts through Sunday the 31st show that no rain is expected
for south central Texas.

The list below shows the driest octobers of record at Austin...
del Rio... and San Antonio.

Austin Mabry has had 0.08 inches of rain from October 1st through
today. This makes October 2010 so far the 5th driest October at
Austin Mabry since 1856. The list below shows the driest octobers
at Austin Mabry.

1. 0.00 October 1893
2. Trace October 1952
3. 0.02 October 1947
4. 0.03 October 1934
5. 0.08 October 1 to 28... 2010

Austin Bergstrom has had 0.06 inches of rain from October 1st through
today. This makes October 2010 so far the 3rd driest October at
Austin Bergstrom since October 1942. The list below shows the driest
octobers at Austin Bergstrom.

1. 0.00 October 1952
2. 0.01 October 1947
3. 0.06 October 1 to 28... 2010
4. 0.21 October 1987
5. 0.33 October 1955

Del Rio has had 0.01 inches of rain from October 1st through today.
This makes October 2010 so far a tie with October of 1915 and
October of 1931 for the 3rd driest October at del Rio since 1906.
The list below shows the driest octobers at del Rio.

1. 0.00 October 1917 and 1979
2. Trace October 1950 and 1952
3. 0.01 October 1915... 1931 and October 1 to 28... 2010
4. 0.04 October 1955
5. 0.06 October 1909... 1970 and 1980

San Antonio has had 0.17 inches of rain from October 1st through
today. This makes October 2010 so far a tie with October of 1943
for the 8th driest October at San Antonio since 1871. The list
below shows the driest octobers at San Antonio.

1. Trace October 1952
2. 0.03 October 1898
3. 0.07 October 1939
4. 0.08 October 1893 and 1950
5. 0.11 October 1979
6. 0.12 October 1901
7. 0.13 October 1938
8. 0.17 October 1943 and October 1 to 28... 2010

Friday, October 1, 2010

Rainfall Totals for September

My 6.54 inches of rain recorded in my backyard seems puny compared with other parts of the area. Here is a statement from NOAA on September rains:

... September 2010 was one of the wetter septembers at
Austin and San Antonio...

September 2010 was one of the wetter septembers at Austin and San Antonio.
Rainfall from a cold front late September 2nd to the early morning hours
of September 3rd was followed by scattered showers the afternoon
of the 6th and rains associated with Hermine the 7th through the
8th. Additional rain came from isolated showers the weekend of
September 11th and 12th to Tuesday the 14th... and more widespread
rain showers from Friday the 17th through Sunday the 19th.
Scattered daytime to early evening showers brought more rain on
Monday the 20th through Saturday the 25th... and isolated early
morning showers came with a cold front the morning of the 26th.
The rest of the month from the 27th to the 30th was dry.

Rainfall for September 2010 was the 2nd wettest September at
Austin Mabry... the 13th wettest at Austin Bergstrom... and the
6th wettest September at San Antonio. September 2010 was not one
of the wetter septembers at del Rio. Rainfall at del Rio was 2.06
inches in September of 2010... equal to the latest 30 year
1971 to 2000 average.

The list below shows the wettest septembers at Austin... del Rio...
and San Antonio.

The wettest septembers at Austin Mabry from 1856 to 2010 are listed below.
The 1971 to 2000 normal at Austin Mabry is 2.91 inches... while the
historical 1856 to 2010 average is 3.51 inches.

1. 20.78 September 1921
2. 13.20 September 2010
3. 12.78 September 1874
4. 12.33 September 1886
5. 10.54 September 1873

The wettest septembers at Austin Bergstrom international Airport from
1943 to 2010 are listed below. The 1971 to 2000 normal at Austin Bergstrom
for September is 2.88 inches... while the historical 1943 to 2010 average
is 3.29 inches.

1. 9.36 September 1986
2. 8.82 September 1957
3. 8.80 September 1958
4. 6.98 September 2009
5. 6.50 September 1967

13. 5.15 September 2010

The wettest septembers at San Antonio International Airport from 1871 to 2010
are listed below. The 1971 to 2000 normal for San Antonio is 3.00 inches...
while the historical 1871 to 2010 average is 3.36 inches.

1. 15.78 September 1946
2. 13.09 September 1973
3. 11.71 September 1874
4. 11.16 September 1967
5. 11.10 September 1957
6. 9.37 September 2010

The wettest septembers at del Rio from 1906 to 2010 are listed below.
At del Rio 2.06 inches of rain fell in September of 2010... equal to the
latest 1971 to 2000 normal. The historical 1906 to 2010 average
rain in September at del Rio is 2.50 inches.

1. 15.79 September 1964
2. 9.95 September 1932
3. 9.87 September 1970
4. 9.74 September 1919
5. 7.07 September 1991