"City: ","HOUSTON " "State: ","TX" "WBAN No: ", 12960 "Lat(N): ", 29.98 "Long(W): ", 95.37 "Elev(m): ", 33 "Pres(mb):", 1014 "Stn Type:","Secondary" "SOLAR RADIATION FOR FLAT-PLATE COLLECTORS FACING SOUTH AT A FIXED-TILT (kWh/m2/day), Percentage Uncertainty = 9" "Tilt(deg)"," ","Jan","Feb","Mar","Apr","May","Jun","Jul","Aug","Sep","Oct","Nov","Dec","Year" "0 ","Average", 2.7, 3.4, 4.2, 5.0, 5.6, 6.0, 5.9, 5.6, 4.9, 4.2, 3.1, 2.5, 4.4 " ","Minimum", 2.2, 2.8, 3.6, 4.3, 4.6, 5.1, 5.0, 4.8, 4.2, 3.3, 2.2, 2.2, 4.2 " ","Maximum", 3.2, 4.1, 5.1, 6.4, 6.4, 6.9, 6.7, 6.3, 5.7, 5.2, 3.9, 2.9, 4.8 "Lat - 15 ","Average", 3.2, 3.9, 4.6, 5.2, 5.6, 5.9, 5.8, 5.7, 5.2, 4.8, 3.7, 3.0, 4.7 " ","Minimum", 2.6, 3.1, 3.8, 4.3, 4.6, 5.0, 4.9, 4.8, 4.4, 3.6, 2.4, 2.6, 4.5 " ","Maximum", 3.9, 4.8, 5.6, 6.7, 6.4, 6.7, 6.6, 6.5, 6.1, 6.1, 4.9, 3.8, 5.1 "Lat ","Average", 3.6, 4.3, 4.7, 5.1, 5.3, 5.4, 5.4, 5.5, 5.3, 5.2, 4.1, 3.5, 4.8 " ","Minimum", 2.8, 3.2, 3.8, 4.2, 4.3, 4.6, 4.6, 4.7, 4.4, 3.8, 2.5, 2.8, 4.5 " ","Maximum", 4.5, 5.4, 5.9, 6.6, 6.0, 6.1, 6.1, 6.3, 6.3, 6.7, 5.7, 4.4, 5.2 "Lat + 15 ","Average", 3.8, 4.4, 4.6, 4.7, 4.7, 4.7, 4.8, 5.0, 5.1, 5.2, 4.3, 3.7, 4.6 " ","Minimum", 2.9, 3.2, 3.6, 3.9, 3.8, 4.1, 4.1, 4.3, 4.2, 3.8, 2.5, 2.9, 4.3 " ","Maximum", 4.9, 5.6, 5.8, 6.1, 5.3, 5.3, 5.3, 5.7, 6.0, 6.9, 6.1, 4.8, 5.0 "90 ","Average", 3.1, 3.3, 3.0, 2.5, 2.0, 1.8, 1.9, 2.4, 3.0, 3.8, 3.5, 3.2, 2.8 " ","Minimum", 2.3, 2.3, 2.3, 2.2, 1.8, 1.7, 1.8, 2.1, 2.5, 2.6, 1.9, 2.4, 2.6 " ","Maximum", 4.2, 4.3, 3.8, 3.0, 2.2, 1.9, 2.0, 2.6, 3.6, 5.0, 5.1, 4.2, 3.1 "SOLAR RADIATION FOR 1-AXIS TRACKING FLAT-PLATE COLLECTORS WITH A NORTH-SOUTH AXIS (kWh/m2/day), Percentage Uncertainty = 9" "Axis Tilt"," ","Jan","Feb","Mar","Apr","May","Jun","Jul","Aug","Sep","Oct","Nov","Dec","Year" "0 ","Average", 3.5, 4.5, 5.4, 6.3, 7.0, 7.6, 7.5, 7.2, 6.4, 5.7, 4.1, 3.3, 5.7 " ","Minimum", 2.7, 3.3, 4.1, 4.9, 5.3, 6.1, 6.0, 5.9, 5.3, 3.9, 2.4, 2.7, 5.3 " ","Maximum", 4.5, 5.8, 7.0, 8.8, 8.3, 9.0, 8.9, 8.4, 7.7, 7.4, 5.8, 4.2, 6.3 "Lat - 15 ","Average", 3.9, 4.9, 5.7, 6.4, 7.0, 7.5, 7.4, 7.3, 6.7, 6.1, 4.6, 3.7, 5.9 " ","Minimum", 3.0, 3.5, 4.3, 5.0, 5.3, 6.0, 6.0, 6.0, 5.5, 4.2, 2.6, 3.0, 5.6 " ","Maximum", 5.1, 6.3, 7.4, 9.0, 8.3, 8.9, 8.8, 8.5, 8.0, 8.1, 6.6, 4.8, 6.5 "Lat ","Average", 4.2, 5.1, 5.8, 6.4, 6.8, 7.2, 7.2, 7.2, 6.7, 6.4, 4.9, 4.0, 6.0 " ","Minimum", 3.1, 3.7, 4.3, 4.9, 5.1, 5.8, 5.8, 5.8, 5.5, 4.3, 2.7, 3.2, 5.6 " ","Maximum", 5.5, 6.7, 7.6, 8.9, 8.1, 8.5, 8.5, 8.4, 8.1, 8.5, 7.2, 5.3, 6.6 "Lat + 15 ","Average", 4.3, 5.2, 5.7, 6.1, 6.4, 6.7, 6.7, 6.8, 6.6, 6.4, 5.1, 4.2, 5.9 " ","Minimum", 3.2, 3.7, 4.2, 4.7, 4.8, 5.4, 5.4, 5.6, 5.3, 4.3, 2.7, 3.3, 5.5 " ","Maximum", 5.8, 6.9, 7.6, 8.6, 7.6, 7.9, 7.9, 8.0, 8.0, 8.6, 7.5, 5.6, 6.5 "SOLAR RADIATION FOR 2-AXIS TRACKING FLAT-PLATE COLLECTORS (kWh/m2/day), Percentage Uncertainty = 9" "Tracker "," ","Jan","Feb","Mar","Apr","May","Jun","Jul","Aug","Sep","Oct","Nov","Dec","Year" "2-Axis ","Average", 4.4, 5.2, 5.8, 6.5, 7.1, 7.7, 7.6, 7.3, 6.7, 6.5, 5.1, 4.2, 6.2 " ","Minimum", 3.2, 3.7, 4.3, 5.0, 5.3, 6.1, 6.1, 6.0, 5.5, 4.3, 2.7, 3.3, 5.8 " ","Maximum", 5.8, 6.9, 7.6, 9.0, 8.4, 9.1, 8.9, 8.6, 8.1, 8.6, 7.5, 5.7, 6.8 "DIRECT BEAM SOLAR RADIATION FOR CONCENTRATING COLLECTORS (kWh/m2/day), Percentage Uncertainty = 8" "Tracker "," ","Jan","Feb","Mar","Apr","May","Jun","Jul","Aug","Sep","Oct","Nov","Dec","Year" "1-X, E-W ","Average", 2.3, 2.7, 2.7, 2.8, 3.1, 3.4, 3.3, 3.2, 3.1, 3.4, 2.8, 2.3, 2.9 "Hor Axis ","Minimum", 1.4, 1.4, 1.4, 1.6, 1.6, 2.4, 2.2, 2.3, 2.1, 1.7, 0.8, 1.5, 2.6 " ","Maximum", 3.6, 4.1, 3.9, 4.8, 4.1, 4.6, 4.5, 4.1, 4.1, 4.9, 4.8, 3.7, 3.3 "1-X, N-S ","Average", 2.0, 2.8, 3.2, 3.7, 4.1, 4.5, 4.4, 4.3, 3.9, 3.7, 2.6, 1.9, 3.4 "Hor Axis ","Minimum", 1.2, 1.5, 1.7, 2.1, 2.1, 3.0, 3.0, 3.1, 2.8, 1.9, 0.8, 1.2, 3.1 " ","Maximum", 3.2, 4.3, 4.8, 6.5, 5.4, 6.0, 6.0, 5.4, 5.3, 5.4, 4.5, 3.1, 3.9 "1-X, N-S ","Average", 2.6, 3.3, 3.6, 3.7, 3.9, 4.2, 4.1, 4.3, 4.1, 4.3, 3.3, 2.5, 3.7 "Tilt=Lat ","Minimum", 1.6, 1.8, 1.9, 2.2, 2.0, 2.8, 2.8, 3.0, 2.9, 2.2, 1.0, 1.6, 3.3 " ","Maximum", 4.1, 5.1, 5.3, 6.6, 5.2, 5.6, 5.6, 5.3, 5.6, 6.3, 5.6, 4.0, 4.2 "2-X ","Average", 2.8, 3.4, 3.6, 3.8, 4.1, 4.6, 4.4, 4.4, 4.2, 4.3, 3.4, 2.8, 3.8 " ","Minimum", 1.7, 1.8, 1.9, 2.2, 2.1, 3.1, 3.0, 3.1, 3.0, 2.2, 1.0, 1.8, 3.4 " ","Maximum", 4.3, 5.2, 5.3, 6.7, 5.5, 6.1, 6.0, 5.5, 5.6, 6.3, 5.9, 4.4, 4.3 "AVERAGE CLIMATIC CONDITIONS" "Element "," ","Jan","Feb","Mar","Apr","May","Jun","Jul","Aug","Sep","Oct","Nov","Dec","Year" "Temp. ","(deg C)", 10.2, 12.2, 15.9, 20.2, 23.6, 26.9, 28.1, 27.9, 25.7, 20.9, 16.1, 11.9, 19.9 "Daily Min","(deg C)", 4.3, 5.9, 10.0, 14.5, 18.0, 21.4, 22.4, 22.2, 19.9, 14.2, 9.8, 5.7, 14.1 "Daily Max","(deg C)", 16.1, 18.5, 21.7, 25.8, 29.2, 32.3, 33.7, 33.6, 31.3, 27.6, 22.4, 18.2, 25.9 "Record Lo","(deg C)",-11.1, -6.7, -5.6, -0.6, 6.7, 11.1, 16.7, 16.7, 8.9, 0.0, -7.2,-13.9,-13.9 "Record Hi","(deg C)", 28.9, 32.8, 32.8, 35.0, 36.1, 39.4, 40.0, 41.7, 38.9, 35.6, 31.7, 28.3, 41.7 "HDD,Base="," 18.3C ", 260, 179, 104, 20, 0, 0, 0, 0, 0, 17, 101, 208, 888 "CDD,Base="," 18.3C ", 9, 6, 28, 75, 164, 257, 303, 298, 220, 97, 34, 10, 1500 "Rel Hum ","percent", 75, 73, 73, 74, 75, 75, 75, 75, 76, 74, 75, 75, 75 "Wind Spd."," (m/s) ", 4.0, 4.2, 4.4, 4.4, 3.9, 3.6, 3.2, 3.0, 3.3, 3.4, 3.8, 3.9, 3.8