1999 MONTHLY CLIMATIC DATA FOR BROWNSVILLE,TX
  JAN.  FEB.  MAR. APR. MAY JUN. JUL. AUG. SEP. OCT. NOV. DEC.
AVG. HIGH TEMP. 75.7 79.0  79.8 85.1  89.4 91.4  92.4 95.4 90.0 85.7 81.2  73.5
DEPARTURE FROM AVG. +6.8  +6.8 +1.4  +1.1  +1.6  +0.4 -0.9  +1.8 -0.4  +0.4  +2.9 +1.8 
AVG. LOW TEMP. 53.8  58.9  62.1 69.8 73.2 76.3 75.2 75.5 70.5 63.0 56.9 50.9
DEPARTURE FROM AVG. +3.8 +6.4 +3.0 +3.3 +1.2 +1.4  -0.5  +0.1  -2.7  -3.1 -2.1 -1.5 
AVG. MONTHLY TEMP. 64.7 69.0 71.0 77.5 81.3 83.9 83.8 85.5 80.3 74.4 69.1 62.2
DEPARTURE FROM AVG. +5.3 +6.6 +2.2 +2.2 +1.4 +0.9 -0.7 +1.0 -1.5 -1.3 +0.4 +0.1
AVG. MONTHLY DEW POINT 54.6 59.6 62.0 68.3 72.7 74.9 74.1 74.0 70.6 63.6 59.1 51.6
TOTAL COOLING DEGREE DAYS 110 159 200 383 513 573 588 642 465 312 159 58
TOTAL HEATING DEGREE DAYS 111 43 9 3 0 0 0 0 0 13 31 133
TOTAL PRECIP. (INCHES) 0.26 1.49 3.01 0.14 3.59 2.30 1.86 2.61 3.99 0.69 2.77 0.32
DEPARTURE FROM AVG. (INCHES) -1.30 +0.43 +2.48 -1.42  +0.65 -0.43 -0.05  -0.16 -2.01 -2.11 +1.26 -0.93 
AVG. STATION PRESSURE (INCHES) 30.04 30.05 29.94 29.87 29.85 28.89 29.98 29.90 29.89 30.01 30.08 30.06
AVG. SEA LEVEL PRESSURE (INCHES) 30.06 30.06 29.95 29.88 29.87 29.90 29.99 29.92 29.91 30.03 30.14 30.12
AVG. WIND SPEED (MPH) 11.9 12.0 12.7 14.5 12.4 11.3 9.9 9.2 7.2 8.2 7.3 10.2
AVG. WIND DIRECTION * 170 150 130 110 130 220 170 100 80 30 10 20


 

(ALL TEMPERATURES ARE IN DEGREES FAHRENHEIT UNLESS OTHERWISE NOTED)

* - (AVERAGE WIND DIRECTION READ AS 90 DEG = EAST, 180 DEG = SOUTH, 270 DEG = WEST, 360 DEG = NORTH)


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