"City: ","BIRMINGHAM " "State: ","AL" "WBAN No: ", 13876 "Lat(N): ", 33.57 "Long(W): ", 86.75 "Elev(m): ", 192 "Pres(mb):", 996 "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", 2.5, 3.3, 4.4, 5.5, 6.0, 6.2, 5.9, 5.6, 4.8, 4.0, 2.8, 2.3, 4.4 " ","Minimum", 2.3, 2.8, 3.7, 4.7, 5.3, 5.3, 5.3, 4.8, 4.0, 3.2, 2.2, 2.0, 4.2 " ","Maximum", 3.0, 4.0, 5.2, 6.1, 6.8, 7.2, 6.8, 6.3, 5.4, 4.6, 3.3, 2.7, 4.6 "Lat - 15 ","Average", 3.3, 4.0, 4.9, 5.7, 6.0, 6.1, 5.8, 5.8, 5.2, 4.8, 3.6, 3.1, 4.9 " ","Minimum", 2.8, 3.2, 4.1, 4.9, 5.3, 5.2, 5.2, 4.8, 4.3, 3.7, 2.6, 2.4, 4.6 " ","Maximum", 4.2, 5.1, 6.0, 6.5, 6.9, 7.0, 6.8, 6.5, 6.0, 5.7, 4.3, 3.7, 5.1 "Lat ","Average", 3.7, 4.4, 5.1, 5.6, 5.6, 5.6, 5.4, 5.6, 5.3, 5.2, 4.1, 3.5, 4.9 " ","Minimum", 3.0, 3.4, 4.1, 4.8, 5.0, 4.8, 4.8, 4.7, 4.2, 3.8, 2.7, 2.7, 4.6 " ","Maximum", 4.9, 5.6, 6.3, 6.4, 6.5, 6.5, 6.3, 6.3, 6.1, 6.2, 5.0, 4.3, 5.2 "Lat + 15 ","Average", 3.9, 4.5, 5.0, 5.2, 5.0, 4.9, 4.8, 5.1, 5.1, 5.2, 4.3, 3.8, 4.7 " ","Minimum", 3.1, 3.5, 4.0, 4.5, 4.4, 4.2, 4.3, 4.2, 4.0, 3.8, 2.8, 2.8, 4.5 " ","Maximum", 5.3, 5.9, 6.2, 5.9, 5.7, 5.6, 5.5, 5.8, 5.9, 6.4, 5.3, 4.7, 5.0 "90 ","Average", 3.4, 3.6, 3.4, 2.9, 2.3, 2.1, 2.2, 2.6, 3.2, 3.9, 3.6, 3.4, 3.0 " ","Minimum", 2.6, 2.7, 2.7, 2.6, 2.2, 1.9, 2.1, 2.3, 2.5, 2.8, 2.2, 2.4, 2.9 " ","Maximum", 4.7, 4.8, 4.2, 3.2, 2.5, 2.2, 2.3, 2.9, 3.7, 4.9, 4.6, 4.3, 3.3 "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, 5.8, 7.1, 7.6, 7.8, 7.2, 7.1, 6.2, 5.5, 3.9, 3.2, 5.8 " ","Minimum", 2.8, 3.4, 4.5, 5.8, 6.4, 6.3, 6.2, 5.6, 4.8, 4.0, 2.6, 2.4, 5.4 " ","Maximum", 4.6, 5.8, 7.4, 8.3, 9.2, 9.3, 8.7, 8.3, 7.2, 6.7, 4.8, 3.9, 6.1 "Lat - 15 ","Average", 4.1, 5.0, 6.2, 7.3, 7.6, 7.7, 7.2, 7.2, 6.5, 6.1, 4.5, 3.8, 6.1 " ","Minimum", 3.2, 3.8, 4.8, 5.9, 6.4, 6.2, 6.1, 5.7, 5.1, 4.3, 2.9, 2.8, 5.7 " ","Maximum", 5.4, 6.6, 8.0, 8.6, 9.2, 9.2, 8.7, 8.5, 7.7, 7.5, 5.6, 4.7, 6.5 "Lat ","Average", 4.4, 5.3, 6.3, 7.3, 7.4, 7.4, 6.9, 7.1, 6.6, 6.3, 4.8, 4.1, 6.2 " ","Minimum", 3.4, 4.0, 4.9, 5.9, 6.2, 6.0, 5.9, 5.6, 5.1, 4.5, 3.0, 3.0, 5.7 " ","Maximum", 5.9, 7.1, 8.2, 8.6, 9.0, 8.8, 8.4, 8.3, 7.8, 7.9, 6.1, 5.2, 6.6 "Lat + 15 ","Average", 4.6, 5.4, 6.2, 7.0, 6.9, 6.9, 6.5, 6.7, 6.4, 6.4, 5.0, 4.3, 6.0 " ","Minimum", 3.5, 4.0, 4.8, 5.6, 5.8, 5.6, 5.5, 5.3, 4.9, 4.5, 3.0, 3.1, 5.6 " ","Maximum", 6.3, 7.2, 8.2, 8.2, 8.4, 8.2, 7.8, 7.9, 7.6, 8.0, 6.3, 5.5, 6.4 "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", 4.6, 5.4, 6.3, 7.4, 7.7, 7.8, 7.3, 7.2, 6.6, 6.4, 5.0, 4.4, 6.4 " ","Minimum", 3.5, 4.0, 4.9, 6.0, 6.5, 6.4, 6.2, 5.7, 5.1, 4.5, 3.1, 3.1, 5.9 " ","Maximum", 6.3, 7.3, 8.3, 8.6, 9.3, 9.4, 8.9, 8.5, 7.8, 8.0, 6.4, 5.6, 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", 2.6, 2.9, 3.0, 3.4, 3.4, 3.4, 3.0, 3.1, 3.0, 3.4, 2.8, 2.5, 3.1 "Hor Axis ","Minimum", 1.6, 1.8, 1.9, 2.5, 2.5, 2.4, 2.3, 2.0, 1.9, 1.9, 1.1, 1.4, 2.7 " ","Maximum", 4.2, 4.4, 4.6, 4.4, 4.7, 4.7, 4.2, 4.1, 3.9, 4.7, 4.0, 3.6, 3.5 "1-X, N-S ","Average", 2.2, 2.9, 3.6, 4.5, 4.5, 4.5, 3.9, 4.0, 3.6, 3.6, 2.4, 2.0, 3.5 "Hor Axis ","Minimum", 1.4, 1.7, 2.3, 3.2, 3.2, 3.0, 2.9, 2.6, 2.3, 2.1, 1.0, 1.1, 3.0 " ","Maximum", 3.4, 4.4, 5.5, 5.8, 6.4, 6.1, 5.5, 5.4, 4.8, 5.0, 3.5, 2.8, 4.0 "1-X, N-S ","Average", 2.9, 3.6, 4.1, 4.6, 4.3, 4.2, 3.7, 4.0, 3.9, 4.3, 3.2, 2.8, 3.8 "Tilt=Lat ","Minimum", 1.8, 2.1, 2.6, 3.3, 3.1, 2.8, 2.7, 2.6, 2.5, 2.5, 1.3, 1.6, 3.3 " ","Maximum", 4.7, 5.4, 6.2, 5.9, 6.1, 5.7, 5.2, 5.4, 5.2, 5.9, 4.6, 3.9, 4.3 "2-X ","Average", 3.1, 3.6, 4.1, 4.7, 4.6, 4.5, 4.0, 4.1, 4.0, 4.4, 3.4, 3.0, 4.0 " ","Minimum", 2.0, 2.2, 2.6, 3.3, 3.3, 3.1, 2.9, 2.7, 2.5, 2.5, 1.4, 1.7, 3.5 " ","Maximum", 5.0, 5.6, 6.2, 6.0, 6.5, 6.2, 5.6, 5.5, 5.2, 6.0, 4.8, 4.2, 4.5 "AVERAGE CLIMATIC CONDITIONS" "Element "," ","Jan","Feb","Mar","Apr","May","Jun","Jul","Aug","Sep","Oct","Nov","Dec","Year" "Temp. ","(deg C)", 5.3, 7.6, 12.3, 16.7, 20.8, 24.6, 26.6, 26.1, 23.0, 16.9, 11.7, 7.3, 16.6 "Daily Min","(deg C)", -0.4, 1.4, 5.7, 9.6, 14.3, 18.4, 20.8, 20.4, 17.2, 10.1, 5.3, 1.6, 10.4 "Daily Max","(deg C)", 10.9, 13.8, 18.9, 23.7, 27.2, 30.8, 32.2, 31.7, 28.8, 23.7, 18.1, 13.2, 22.8 "Record Lo","(deg C)",-21.1,-16.1,-11.7, -3.3, 1.7, 5.6, 10.6, 10.6, 2.8, -2.8,-15.0,-17.2,-21.1 "Record Hi","(deg C)", 27.2, 28.3, 31.7, 33.3, 37.2, 38.9, 41.1, 39.4, 37.8, 34.4, 28.9, 26.7, 41.1 "HDD,Base="," 18.3C ", 405, 300, 194, 75, 17, 0, 0, 0, 4, 82, 202, 341, 1621 "CDD,Base="," 18.3C ", 0, 0, 8, 25, 93, 188, 255, 241, 144, 39, 4, 0, 998 "Rel Hum ","percent", 70, 67, 64, 65, 70, 72, 74, 75, 74, 71, 71, 71, 70 "Wind Spd."," (m/s) ", 3.4, 3.8, 3.8, 3.6, 3.0, 2.6, 2.5, 2.4, 2.8, 2.7, 3.0, 3.3, 3.1