"City: ","FORT SMITH " "State: ","AR" "WBAN No: ", 13964 "Lat(N): ", 35.33 "Long(W): ", 94.37 "Elev(m): ", 141 "Pres(mb):", 1001 "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", 2.6, 3.4, 4.4, 5.4, 6.0, 6.5, 6.6, 6.0, 4.8, 3.9, 2.8, 2.3, 4.6 " ","Minimum", 2.2, 2.8, 3.8, 4.7, 5.3, 5.8, 5.8, 5.1, 4.1, 3.1, 2.2, 2.1, 4.4 " ","Maximum", 3.0, 3.8, 5.2, 6.3, 6.9, 7.3, 7.7, 6.5, 5.6, 4.5, 3.2, 2.7, 4.8 "Lat - 15 ","Average", 3.6, 4.2, 5.0, 5.7, 6.0, 6.3, 6.5, 6.2, 5.3, 4.8, 3.6, 3.2, 5.1 " ","Minimum", 2.7, 3.4, 4.1, 4.9, 5.3, 5.6, 5.7, 5.2, 4.5, 3.6, 2.7, 2.8, 4.8 " ","Maximum", 4.3, 5.0, 6.1, 6.7, 6.9, 7.1, 7.5, 6.8, 6.3, 5.6, 4.4, 4.1, 5.4 "Lat ","Average", 4.1, 4.6, 5.2, 5.6, 5.7, 5.8, 6.0, 6.0, 5.4, 5.1, 4.1, 3.7, 5.1 " ","Minimum", 2.9, 3.7, 4.2, 4.8, 5.0, 5.2, 5.3, 4.9, 4.5, 3.8, 2.9, 3.1, 4.8 " ","Maximum", 5.0, 5.6, 6.4, 6.6, 6.5, 6.5, 6.9, 6.6, 6.5, 6.1, 5.0, 4.8, 5.5 "Lat + 15 ","Average", 4.3, 4.8, 5.1, 5.2, 5.0, 5.0, 5.3, 5.5, 5.2, 5.2, 4.3, 4.0, 4.9 " ","Minimum", 3.0, 3.7, 4.0, 4.5, 4.4, 4.5, 4.6, 4.5, 4.3, 3.8, 2.9, 3.3, 4.6 " ","Maximum", 5.4, 5.8, 6.4, 6.1, 5.8, 5.6, 6.0, 6.0, 6.3, 6.2, 5.4, 5.2, 5.2 "90 ","Average", 3.9, 3.9, 3.5, 3.0, 2.4, 2.2, 2.4, 2.9, 3.4, 4.0, 3.7, 3.6, 3.2 " ","Minimum", 2.5, 2.9, 2.8, 2.6, 2.2, 2.1, 2.2, 2.5, 2.9, 2.8, 2.4, 2.9, 3.0 " ","Maximum", 4.9, 4.8, 4.5, 3.4, 2.7, 2.3, 2.5, 3.1, 4.0, 4.8, 4.7, 4.8, 3.5 "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", 3.7, 4.7, 5.8, 7.0, 7.8, 8.4, 8.7, 7.9, 6.4, 5.4, 3.8, 3.3, 6.1 " ","Minimum", 2.6, 3.6, 4.7, 6.0, 6.5, 7.2, 7.5, 6.3, 5.3, 4.0, 2.7, 2.7, 5.7 " ","Maximum", 4.6, 5.8, 7.5, 8.8, 9.3, 9.8,10.6, 8.9, 8.0, 6.5, 4.8, 4.2, 6.6 "Lat - 15 ","Average", 4.4, 5.3, 6.3, 7.3, 7.8, 8.3, 8.7, 8.2, 6.8, 6.1, 4.5, 3.9, 6.5 " ","Minimum", 3.0, 4.0, 5.0, 6.2, 6.5, 7.1, 7.5, 6.4, 5.6, 4.4, 3.0, 3.3, 6.0 " ","Maximum", 5.6, 6.7, 8.3, 9.1, 9.4, 9.7,10.6, 9.2, 8.6, 7.4, 5.7, 5.2, 7.0 "Lat ","Average", 4.8, 5.6, 6.4, 7.2, 7.6, 8.0, 8.4, 8.0, 6.9, 6.4, 4.8, 4.3, 6.5 " ","Minimum", 3.2, 4.2, 5.0, 6.1, 6.3, 6.8, 7.2, 6.3, 5.7, 4.5, 3.2, 3.6, 6.1 " ","Maximum", 6.2, 7.1, 8.5, 9.1, 9.1, 9.3,10.2, 9.1, 8.7, 7.7, 6.2, 5.8, 7.1 "Lat + 15 ","Average", 5.0, 5.7, 6.4, 7.0, 7.1, 7.5, 7.8, 7.6, 6.7, 6.4, 5.0, 4.6, 6.4 " ","Minimum", 3.3, 4.3, 4.9, 5.8, 5.9, 6.4, 6.8, 6.0, 5.5, 4.5, 3.3, 3.7, 5.9 " ","Maximum", 6.5, 7.3, 8.4, 8.7, 8.6, 8.7, 9.5, 8.6, 8.5, 7.8, 6.4, 6.1, 7.0 "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", 5.1, 5.7, 6.5, 7.3, 7.9, 8.5, 8.8, 8.2, 6.9, 6.4, 5.0, 4.6, 6.8 " ","Minimum", 3.3, 4.3, 5.0, 6.2, 6.6, 7.3, 7.7, 6.5, 5.7, 4.6, 3.3, 3.8, 6.3 " ","Maximum", 6.6, 7.3, 8.5, 9.2, 9.5, 9.9,10.7, 9.3, 8.7, 7.8, 6.5, 6.3, 7.4 "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", 3.0, 3.1, 3.1, 3.4, 3.7, 4.1, 4.4, 4.0, 3.3, 3.5, 2.9, 2.8, 3.4 "Hor Axis ","Minimum", 1.5, 2.0, 1.9, 2.4, 2.5, 3.0, 3.4, 2.5, 2.4, 2.1, 1.4, 2.1, 3.0 " ","Maximum", 4.3, 4.4, 4.8, 4.9, 4.9, 5.3, 6.1, 4.8, 4.7, 4.6, 4.1, 4.2, 4.0 "1-X, N-S ","Average", 2.4, 3.0, 3.7, 4.4, 4.9, 5.4, 5.8, 5.3, 4.1, 3.7, 2.5, 2.1, 3.9 "Hor Axis ","Minimum", 1.1, 1.9, 2.3, 3.3, 3.3, 4.0, 4.6, 3.4, 3.0, 2.2, 1.2, 1.5, 3.4 " ","Maximum", 3.5, 4.3, 5.7, 6.5, 6.6, 6.9, 8.1, 6.4, 6.0, 4.9, 3.5, 3.2, 4.6 "1-X, N-S ","Average", 3.3, 3.8, 4.2, 4.6, 4.8, 5.0, 5.5, 5.3, 4.5, 4.5, 3.3, 3.0, 4.3 "Tilt=Lat ","Minimum", 1.6, 2.4, 2.7, 3.4, 3.2, 3.7, 4.3, 3.3, 3.2, 2.6, 1.6, 2.2, 3.7 " ","Maximum", 4.8, 5.5, 6.4, 6.7, 6.4, 6.5, 7.7, 6.4, 6.5, 6.0, 4.7, 4.6, 5.0 "2-X ","Average", 3.6, 3.9, 4.2, 4.7, 5.0, 5.5, 5.9, 5.5, 4.5, 4.5, 3.5, 3.3, 4.5 " ","Minimum", 1.7, 2.5, 2.7, 3.4, 3.4, 4.1, 4.6, 3.5, 3.2, 2.7, 1.7, 2.4, 3.9 " ","Maximum", 5.2, 5.6, 6.5, 6.8, 6.7, 7.1, 8.3, 6.6, 6.5, 6.0, 5.0, 4.9, 5.2 "AVERAGE CLIMATIC CONDITIONS" "Element "," ","Jan","Feb","Mar","Apr","May","Jun","Jul","Aug","Sep","Oct","Nov","Dec","Year" "Temp. ","(deg C)", 2.7, 5.5, 10.9, 16.3, 20.6, 24.9, 27.5, 27.0, 23.1, 16.8, 10.3, 4.6, 15.9 "Daily Min","(deg C)", -3.6, -1.0, 4.0, 9.2, 14.3, 18.8, 21.1, 20.4, 16.6, 9.3, 3.6, -1.5, 9.3 "Daily Max","(deg C)", 9.1, 11.9, 17.8, 23.4, 26.9, 31.1, 33.9, 33.6, 29.6, 24.3, 17.1, 10.7, 22.4 "Record Lo","(deg C)",-23.3,-22.8,-13.9, -5.6, 1.7, 8.3, 10.0, 10.6, 0.6, -5.6,-13.3,-20.6,-23.3 "Record Hi","(deg C)", 27.2, 30.0, 34.4, 35.0, 36.7, 40.6, 43.9, 43.3, 41.1, 35.6, 30.0, 27.8, 43.9 "HDD,Base="," 18.3C ", 484, 359, 237, 84, 20, 0, 0, 0, 7, 76, 240, 426, 1932 "CDD,Base="," 18.3C ", 0, 0, 6, 24, 91, 198, 284, 269, 151, 29, 0, 0, 1052 "Rel Hum ","percent", 69, 68, 64, 64, 71, 71, 69, 69, 72, 69, 70, 71, 69 "Wind Spd."," (m/s) ", 3.6, 3.8, 4.2, 4.0, 3.4, 2.9, 2.8, 2.8, 3.0, 3.0, 3.5, 3.7, 3.4