"City: ","LITTLE ROCK " "State: ","AR" "WBAN No: ", 13963 "Lat(N): ", 34.73 "Long(W): ", 92.23 "Elev(m): ", 81 "Pres(mb):", 1008 "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, 4.3, 5.3, 6.1, 6.5, 6.4, 5.9, 4.8, 3.9, 2.7, 2.2, 4.5 " ","Minimum", 2.1, 2.9, 3.7, 4.5, 5.3, 5.7, 5.7, 5.3, 4.1, 3.1, 2.2, 1.9, 4.3 " ","Maximum", 3.0, 3.8, 5.2, 6.2, 6.9, 7.3, 7.4, 6.6, 5.5, 4.6, 3.1, 2.6, 4.8 "Lat - 15 ","Average", 3.4, 4.1, 4.9, 5.6, 6.1, 6.4, 6.3, 6.1, 5.3, 4.8, 3.5, 3.0, 5.0 " ","Minimum", 2.7, 3.5, 4.1, 4.7, 5.3, 5.6, 5.5, 5.4, 4.5, 3.6, 2.7, 2.5, 4.7 " ","Maximum", 4.2, 4.9, 6.1, 6.6, 6.9, 7.1, 7.3, 6.8, 6.2, 5.7, 4.2, 3.9, 5.3 "Lat ","Average", 3.8, 4.5, 5.1, 5.5, 5.7, 5.9, 5.9, 5.9, 5.4, 5.1, 4.0, 3.5, 5.0 " ","Minimum", 2.9, 3.7, 4.2, 4.6, 5.0, 5.2, 5.2, 5.2, 4.5, 3.8, 2.8, 2.8, 4.7 " ","Maximum", 4.9, 5.4, 6.4, 6.5, 6.5, 6.5, 6.7, 6.6, 6.3, 6.2, 4.8, 4.6, 5.4 "Lat + 15 ","Average", 4.1, 4.6, 5.0, 5.1, 5.1, 5.1, 5.2, 5.4, 5.2, 5.2, 4.2, 3.7, 4.8 " ","Minimum", 3.0, 3.8, 4.0, 4.2, 4.5, 4.5, 4.5, 4.7, 4.3, 3.8, 2.9, 2.9, 4.5 " ","Maximum", 5.3, 5.6, 6.3, 6.1, 5.8, 5.6, 5.8, 6.0, 6.1, 6.3, 5.1, 5.0, 5.2 "90 ","Average", 3.6, 3.7, 3.5, 2.9, 2.4, 2.2, 2.3, 2.8, 3.3, 4.0, 3.5, 3.3, 3.1 " ","Minimum", 2.6, 3.0, 2.8, 2.5, 2.2, 2.1, 2.1, 2.5, 2.8, 2.8, 2.4, 2.6, 2.9 " ","Maximum", 4.8, 4.6, 4.4, 3.3, 2.6, 2.3, 2.4, 3.1, 3.9, 4.8, 4.4, 4.6, 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", 3.5, 4.5, 5.7, 7.0, 7.8, 8.4, 8.3, 7.8, 6.4, 5.4, 3.7, 3.1, 6.0 " ","Minimum", 2.7, 3.7, 4.6, 5.5, 6.6, 7.0, 7.0, 6.6, 5.1, 3.9, 2.7, 2.5, 5.6 " ","Maximum", 4.5, 5.5, 7.3, 8.7, 9.4, 9.8,10.0, 8.9, 7.4, 6.6, 4.5, 4.1, 6.5 "Lat - 15 ","Average", 4.1, 5.1, 6.2, 7.2, 7.8, 8.3, 8.3, 8.0, 6.8, 6.1, 4.4, 3.7, 6.3 " ","Minimum", 3.1, 4.1, 4.9, 5.7, 6.7, 7.0, 7.0, 6.8, 5.4, 4.3, 3.0, 2.9, 5.9 " ","Maximum", 5.4, 6.4, 8.0, 9.1, 9.4, 9.7, 9.9, 9.1, 8.0, 7.4, 5.3, 5.0, 6.9 "Lat ","Average", 4.5, 5.4, 6.4, 7.2, 7.6, 8.0, 8.0, 7.8, 6.8, 6.4, 4.7, 4.1, 6.4 " ","Minimum", 3.3, 4.3, 5.0, 5.6, 6.5, 6.7, 6.8, 6.6, 5.4, 4.4, 3.2, 3.2, 6.0 " ","Maximum", 5.9, 6.8, 8.3, 9.0, 9.1, 9.3, 9.6, 9.0, 8.1, 7.8, 5.8, 5.5, 7.0 "Lat + 15 ","Average", 4.7, 5.5, 6.3, 6.9, 7.1, 7.4, 7.5, 7.5, 6.7, 6.4, 4.8, 4.3, 6.3 " ","Minimum", 3.4, 4.4, 4.9, 5.3, 6.1, 6.2, 6.3, 6.3, 5.2, 4.4, 3.2, 3.3, 5.8 " ","Maximum", 6.3, 6.9, 8.2, 8.6, 8.6, 8.7, 9.0, 8.5, 7.9, 7.9, 6.0, 5.8, 6.8 "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, 5.5, 6.4, 7.3, 7.9, 8.5, 8.4, 8.0, 6.9, 6.4, 4.9, 4.3, 6.6 " ","Minimum", 3.4, 4.4, 5.0, 5.7, 6.8, 7.1, 7.1, 6.8, 5.4, 4.5, 3.3, 3.3, 6.1 " ","Maximum", 6.3, 7.0, 8.3, 9.1, 9.5, 9.9,10.1, 9.1, 8.1, 7.9, 6.1, 5.9, 7.2 "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", 2.7, 3.0, 3.1, 3.4, 3.6, 4.0, 4.0, 3.8, 3.2, 3.5, 2.8, 2.5, 3.3 "Hor Axis ","Minimum", 1.6, 1.9, 2.0, 2.3, 2.7, 2.9, 3.0, 2.9, 2.2, 2.0, 1.5, 1.8, 2.8 " ","Maximum", 4.0, 4.2, 4.6, 4.8, 5.0, 5.2, 5.5, 4.7, 4.2, 4.7, 3.7, 4.0, 3.8 "1-X, N-S ","Average", 2.2, 2.9, 3.7, 4.4, 4.8, 5.2, 5.2, 5.0, 4.0, 3.7, 2.4, 1.9, 3.8 "Hor Axis ","Minimum", 1.3, 1.8, 2.3, 2.9, 3.7, 3.8, 3.9, 3.8, 2.6, 2.1, 1.2, 1.3, 3.3 " ","Maximum", 3.3, 4.1, 5.4, 6.4, 6.6, 6.9, 7.3, 6.1, 5.2, 5.0, 3.2, 3.1, 4.4 "1-X, N-S ","Average", 3.0, 3.6, 4.2, 4.6, 4.6, 4.9, 4.9, 5.0, 4.4, 4.4, 3.2, 2.7, 4.1 "Tilt=Lat ","Minimum", 1.8, 2.3, 2.6, 3.0, 3.5, 3.6, 3.7, 3.8, 2.9, 2.6, 1.6, 1.9, 3.5 " ","Maximum", 4.5, 5.2, 6.1, 6.6, 6.4, 6.5, 6.9, 6.2, 5.7, 6.0, 4.3, 4.3, 4.8 "2-X ","Average", 3.3, 3.7, 4.2, 4.7, 4.9, 5.3, 5.3, 5.1, 4.4, 4.5, 3.3, 3.0, 4.3 " ","Minimum", 1.9, 2.4, 2.6, 3.1, 3.7, 3.9, 4.0, 3.9, 2.9, 2.6, 1.7, 2.0, 3.7 " ","Maximum", 4.8, 5.3, 6.2, 6.7, 6.8, 7.0, 7.4, 6.3, 5.7, 6.1, 4.5, 4.7, 5.0 "AVERAGE CLIMATIC CONDITIONS" "Element "," ","Jan","Feb","Mar","Apr","May","Jun","Jul","Aug","Sep","Oct","Nov","Dec","Year" "Temp. ","(deg C)", 3.9, 6.4, 11.7, 16.7, 21.2, 25.8, 27.7, 27.0, 23.4, 17.2, 11.2, 6.0, 16.6 "Daily Min","(deg C)", -1.6, 0.7, 5.7, 10.4, 15.0, 19.7, 21.9, 21.0, 17.5, 10.5, 5.3, 0.6, 10.6 "Daily Max","(deg C)", 9.4, 12.2, 17.8, 23.0, 27.4, 31.8, 33.6, 33.0, 29.2, 23.9, 17.1, 11.4, 22.5 "Record Lo","(deg C)",-20.0,-20.6,-11.7, -2.2, 4.4, 7.8, 12.2, 11.1, 2.8, -1.7, -8.3,-18.3,-20.6 "Record Hi","(deg C)", 28.3, 29.4, 32.8, 35.0, 36.7, 40.6, 44.4, 42.2, 41.1, 36.1, 30.0, 26.7, 44.4 "HDD,Base="," 18.3C ", 446, 333, 213, 74, 14, 0, 0, 0, 4, 71, 215, 382, 1753 "CDD,Base="," 18.3C ", 0, 0, 8, 26, 104, 223, 291, 269, 156, 37, 0, 0, 1114 "Rel Hum ","percent", 70, 68, 65, 67, 71, 70, 72, 72, 74, 70, 71, 71, 70 "Wind Spd."," (m/s) ", 3.7, 3.9, 4.1, 3.8, 3.2, 3.0, 2.8, 2.7, 2.8, 2.9, 3.5, 3.5, 3.3