National Weather Service United States Department of Commerce

Storm Impacting the Northwest U.S.; Fire Weather Conditions in Southern California; Severe Weather in the South

A Pacific storm is bringing areas of low elevation rain, moderate to heavy mountain snow, and high winds to the Northwest. Strong Santa Ana winds and very dry conditions are producing elevated to critical fire weather conditions in southern California. Isolated strong to severe thunderstorms are possible through early Wednesday morning across parts of northeast Texas into western Tennessee. Read More >

 

Temperature Trends
Brownsville, Harlingen, McAllen, in 2010
 

The following charts depict the general trend of 2010, which began with a moderate El Niño leading to generally above average precipitation, particularly in February, and extensive cloud cover and cooling fronts to maintain below average temperatures through winter and early spring. A return to above average temperatures arrived by mid spring, continuing through the rest of the year but punctuated briefly in July when residual ground moisture associated with Hurricane Alex and Tropical Depression Number 2 may have contributed to near to slightly below average temperatures. The rapid development of La Niña in late summer and autumn turned the spigot off at the end of September; despite frequent cooling fronts, abundant sunshine and drying ground helped boost temperatures to well above average on many days in November and December.

Bar Graph of average temperatures, by month, in Brownsville for calendar year 2010 (click to enlarge) Line Graph of average temperatures, by month, in Brownsville for calendar year 2010 (click to enlarge)
Bar Graph of average temperatures, by month, in Harlingen for calendar year 2010 (click to enlarge) Line Graph of average temperatures, by month, in Harlingen for calendar year 2010 (click to enlarge)
Bar Graph of average temperatures, by month, in McAllen for calendar year 2010 (click to enlarge) Line Graph of average temperatures, by month, in McAllen for calendar year 2010 (click to enlarge)
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