"City: ","RALEIGH " "State: ","NC" "WBAN No: ", 13722 "Lat(N): ", 35.87 "Long(W): ", 78.78 "Elev(m): ", 134 "Pres(mb):", 1002 "Stn Type:","Primary" "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", 2.4, 3.2, 4.4, 5.5, 6.0, 6.3, 6.1, 5.5, 4.6, 3.8, 2.7, 2.2, 4.4 " ","Minimum", 2.0, 2.5, 3.6, 4.8, 5.1, 5.7, 5.2, 4.3, 3.8, 3.2, 2.0, 1.6, 4.0 " ","Maximum", 2.8, 3.8, 5.1, 6.4, 6.6, 7.1, 6.8, 6.1, 5.3, 4.4, 3.0, 2.6, 4.6 "Lat - 15 ","Average", 3.4, 4.1, 5.0, 5.8, 6.0, 6.2, 6.0, 5.7, 5.1, 4.6, 3.7, 3.1, 4.9 " ","Minimum", 2.6, 3.1, 4.0, 5.1, 5.1, 5.5, 5.1, 4.5, 4.1, 3.7, 2.5, 2.1, 4.5 " ","Maximum", 4.1, 5.0, 6.0, 6.9, 6.6, 6.9, 6.7, 6.3, 6.0, 5.6, 4.3, 4.0, 5.1 "Lat ","Average", 3.8, 4.5, 5.2, 5.7, 5.7, 5.7, 5.6, 5.5, 5.2, 4.9, 4.1, 3.6, 5.0 " ","Minimum", 2.8, 3.3, 4.1, 5.0, 4.8, 5.1, 4.7, 4.3, 4.1, 3.9, 2.7, 2.3, 4.5 " ","Maximum", 4.8, 5.6, 6.2, 6.8, 6.2, 6.4, 6.2, 6.1, 6.1, 6.0, 4.8, 4.6, 5.2 "Lat + 15 ","Average", 4.1, 4.6, 5.1, 5.3, 5.0, 4.9, 4.9, 5.0, 5.0, 5.0, 4.3, 3.8, 4.8 " ","Minimum", 2.9, 3.4, 3.9, 4.6, 4.3, 4.5, 4.2, 3.9, 3.9, 3.8, 2.8, 2.3, 4.3 " ","Maximum", 5.2, 5.8, 6.1, 6.3, 5.5, 5.5, 5.5, 5.6, 5.9, 6.1, 5.2, 5.1, 5.0 "90 ","Average", 3.6, 3.8, 3.6, 3.1, 2.5, 2.3, 2.4, 2.8, 3.3, 3.8, 3.7, 3.5, 3.2 " ","Minimum", 2.5, 2.8, 2.8, 2.7, 2.3, 2.2, 2.1, 2.2, 2.5, 2.9, 2.3, 2.0, 2.9 " ","Maximum", 4.7, 4.8, 4.3, 3.6, 2.7, 2.4, 2.6, 3.0, 3.8, 4.8, 4.5, 4.7, 3.4 "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", 3.4, 4.5, 5.9, 7.2, 7.6, 7.9, 7.5, 6.8, 6.0, 5.1, 3.8, 3.1, 5.7 " ","Minimum", 2.5, 3.3, 4.5, 6.1, 6.2, 6.8, 6.1, 5.3, 4.6, 4.0, 2.5, 2.0, 5.2 " ","Maximum", 4.3, 5.8, 7.2, 8.9, 8.6, 9.2, 8.7, 7.8, 7.3, 6.4, 4.5, 4.0, 6.0 "Lat - 15 ","Average", 4.1, 5.2, 6.4, 7.5, 7.6, 7.8, 7.5, 7.0, 6.4, 5.8, 4.5, 3.8, 6.1 " ","Minimum", 2.9, 3.7, 4.8, 6.4, 6.3, 6.7, 6.1, 5.5, 4.8, 4.4, 2.8, 2.3, 5.5 " ","Maximum", 5.3, 6.7, 7.9, 9.3, 8.7, 9.1, 8.7, 8.0, 7.8, 7.2, 5.4, 5.0, 6.4 "Lat ","Average", 4.5, 5.5, 6.5, 7.5, 7.4, 7.5, 7.2, 6.9, 6.4, 6.0, 4.9, 4.2, 6.2 " ","Minimum", 3.1, 3.9, 4.8, 6.3, 6.1, 6.4, 5.9, 5.4, 4.8, 4.5, 3.0, 2.5, 5.5 " ","Maximum", 5.8, 7.1, 8.1, 9.2, 8.5, 8.7, 8.4, 7.9, 7.9, 7.6, 5.9, 5.6, 6.5 "Lat + 15 ","Average", 4.7, 5.6, 6.5, 7.2, 7.0, 7.0, 6.7, 6.5, 6.3, 6.1, 5.0, 4.4, 6.1 " ","Minimum", 3.2, 4.0, 4.7, 6.0, 5.7, 6.0, 5.5, 5.1, 4.7, 4.5, 3.1, 2.6, 5.4 " ","Maximum", 6.1, 7.2, 8.0, 8.9, 8.0, 8.1, 7.8, 7.5, 7.7, 7.7, 6.1, 5.9, 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", 4.7, 5.6, 6.6, 7.5, 7.7, 8.0, 7.6, 7.1, 6.5, 6.1, 5.1, 4.4, 6.4 " ","Minimum", 3.3, 4.0, 4.8, 6.4, 6.3, 6.8, 6.2, 5.5, 4.8, 4.5, 3.1, 2.6, 5.7 " ","Maximum", 6.2, 7.3, 8.1, 9.3, 8.8, 9.3, 8.9, 8.0, 7.9, 7.7, 6.2, 6.0, 6.7 "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", 2.8, 3.0, 3.3, 3.5, 3.4, 3.5, 3.2, 2.9, 2.9, 3.2, 3.0, 2.7, 3.1 "Hor Axis ","Minimum", 1.5, 1.9, 1.9, 2.6, 2.3, 2.4, 2.1, 1.8, 1.8, 1.9, 1.4, 1.1, 2.7 " ","Maximum", 4.1, 4.4, 4.5, 4.9, 4.3, 4.6, 4.3, 3.7, 4.0, 4.6, 3.8, 4.0, 3.4 "1-X, N-S ","Average", 2.2, 2.9, 3.8, 4.6, 4.5, 4.6, 4.1, 3.8, 3.5, 3.3, 2.5, 2.0, 3.5 "Hor Axis ","Minimum", 1.3, 1.8, 2.2, 3.4, 3.1, 3.2, 2.8, 2.3, 2.1, 2.0, 1.1, 0.9, 3.0 " ","Maximum", 3.2, 4.3, 5.3, 6.5, 5.7, 6.0, 5.7, 4.9, 4.9, 4.7, 3.3, 3.0, 3.8 "1-X, N-S ","Average", 3.1, 3.7, 4.4, 4.8, 4.4, 4.3, 3.9, 3.8, 3.9, 4.1, 3.4, 2.9, 3.9 "Tilt=Lat ","Minimum", 1.7, 2.3, 2.6, 3.6, 3.0, 3.0, 2.7, 2.3, 2.3, 2.4, 1.5, 1.3, 3.3 " ","Maximum", 4.5, 5.5, 6.0, 6.8, 5.5, 5.6, 5.4, 4.9, 5.4, 5.8, 4.4, 4.3, 4.2 "2-X ","Average", 3.3, 3.8, 4.4, 4.9, 4.6, 4.6, 4.2, 3.9, 3.9, 4.1, 3.5, 3.1, 4.0 " ","Minimum", 1.9, 2.4, 2.6, 3.6, 3.2, 3.3, 2.9, 2.4, 2.3, 2.4, 1.6, 1.4, 3.4 " ","Maximum", 4.8, 5.6, 6.1, 6.9, 5.8, 6.1, 5.8, 5.1, 5.4, 5.9, 4.7, 4.7, 4.4 "AVERAGE CLIMATIC CONDITIONS" "Element "," ","Jan","Feb","Mar","Apr","May","Jun","Jul","Aug","Sep","Oct","Nov","Dec","Year" "Temp. ","(deg C)", 3.8, 5.6, 10.2, 15.0, 19.4, 23.5, 25.6, 25.1, 21.7, 15.6, 10.7, 5.9, 15.2 "Daily Min","(deg C)", -1.8, -0.4, 3.7, 7.9, 12.9, 17.6, 20.1, 19.7, 16.2, 9.1, 4.3, 0.2, 9.1 "Daily Max","(deg C)", 9.4, 11.4, 16.7, 22.1, 25.9, 29.4, 31.1, 30.4, 27.3, 22.0, 17.0, 11.5, 21.2 "Record Lo","(deg C)",-22.8,-15.0,-11.7, -5.0, -0.6, 3.3, 8.9, 7.8, 2.8, -7.2,-11.7,-15.6,-22.8 "Record Hi","(deg C)", 26.1, 28.9, 33.3, 35.0, 36.1, 40.0, 40.6, 40.6, 40.0, 36.7, 31.1, 26.1, 40.6 "HDD,Base="," 18.3C ", 449, 358, 254, 107, 26, 0, 0, 0, 5, 105, 230, 386, 1921 "CDD,Base="," 18.3C ", 0, 0, 3, 7, 61, 155, 226, 208, 107, 21, 0, 0, 787 "Rel Hum ","percent", 67, 64, 63, 62, 71, 74, 76, 78, 77, 73, 69, 69, 70 "Wind Spd."," (m/s) ", 3.8, 3.9, 4.1, 3.9, 3.4, 3.1, 2.9, 2.8, 3.0, 3.1, 3.4, 3.6, 3.4