Volume 20 Number 10 OCTOBER 2007

October 2007 was a warm and a very dry month for almost the entire state. A zonal wind pattern across the United States kept any significant cold fronts from entering the state the first half of the month. Average daily high temperatures were 5º to 6º F above normal at many of the first order stations. In fact, 10 stations observed average high temperatures at least 4º F above normal, and three stations (Lubbock, Midland, and San Angelo) recorded average high temperatures at least 6º F above normal. Every first order station recorded above normal mean monthly temperatures.

Precipitation totals were mostly above normal across the entire state. Houston was the only station to record above average rain totals for the month. Parts of West Texas, the Panhandle, and the Hill County were particularly dry. El Paso only received .08” of rain for the month, and Midland only received .16” of rain. 10 of the first order stations recorded rainfall totals of less than 1 inch, and only a few of the stations received close to normal rainfall totals.

The first significant cold front of the season moved through the state in late October bringing an end to the above average temperatures. Several stations saw low temperatures drop into the 30’s. Temperatures gradually moderated across the state as October came to a close.

OCTOBER 2007

* Complete temperature data were unavailable. Temperatures are rounded to the nearest whole degree.

*HDD - Heating degree-day: Refer to the Monthly Average chart for a definition T = Trace (<0.005")

*CDD - Cooling degree-day: Refer to the Monthly Average chart for a definition M: Information not available.

CLIMATIC AVERAGES FOR NOVEMBER

Records are at the current site, other records may have occurred at previous sites.

*CDD - Cooling degree-day: The difference between the mean individual daily temperature and 65°F, with one

CDD resulting for each degree above the standard 65°F during one day.

*HDD - Heating degree-day: The difference between the mean individual daily temperature and 65°F, with one

HDD resulting for each degree below the standard 65°F during one day.

All times given for sunrise, sunset, and moon phase times are calculated for the intersection of

Meridian 99°10' W and parallel 31°23' N, which is the approximate geographic center of the state.

Agricultural Weather Highlights

http://agnews.tamu.edu/dailynews/stories/CROP/

Past Weather Events in November

Nov. 23-24, 1974: Flash Flooding. Central Texas. Over $1 million in property damage. Thirteen people killed, ten in Travis County.

Dr. John Nielsen-Gammon (State Climatologist)

adam wiley (Undergraduate assistant)