"City: ","BETHEL " "State: ","AK" "WBAN No: ", 26615 "Lat(N): ", 60.78 "Long(W): ",161.80 "Elev(m): ", 46 "Pres(mb):", 1003 "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", 0.4, 1.1, 2.5, 3.9, 4.5, 4.8, 4.3, 3.2, 2.2, 1.2, 0.5, 0.2, 2.4 " ","Minimum", 0.3, 0.9, 2.0, 3.1, 3.7, 3.9, 3.7, 2.6, 1.8, 1.0, 0.4, 0.2, 2.2 " ","Maximum", 0.5, 1.4, 3.1, 4.8, 5.3, 5.8, 5.1, 3.8, 2.7, 1.4, 0.6, 0.3, 2.6 "Lat - 15 ","Average", 1.2, 2.7, 4.3, 5.1, 4.8, 4.7, 4.2, 3.4, 3.0, 2.1, 1.3, 0.8, 3.1 " ","Minimum", 0.7, 1.7, 2.8, 3.6, 3.6, 3.5, 3.4, 2.6, 2.0, 1.6, 0.8, 0.5, 2.7 " ","Maximum", 2.0, 4.2, 6.1, 6.8, 5.9, 5.9, 5.4, 4.5, 3.9, 2.9, 2.1, 1.5, 3.5 "Lat ","Average", 1.4, 3.0, 4.5, 5.0, 4.5, 4.2, 3.8, 3.2, 2.9, 2.2, 1.4, 1.0, 3.1 " ","Minimum", 0.8, 1.8, 2.9, 3.5, 3.3, 3.1, 3.0, 2.4, 1.9, 1.6, 0.9, 0.6, 2.7 " ","Maximum", 2.3, 4.7, 6.5, 6.9, 5.6, 5.4, 5.0, 4.3, 3.9, 3.1, 2.4, 1.7, 3.5 "Lat + 15 ","Average", 1.5, 3.1, 4.4, 4.7, 4.0, 3.6, 3.3, 2.9, 2.8, 2.1, 1.5, 1.0, 2.9 " ","Minimum", 0.9, 1.8, 2.8, 3.2, 2.9, 2.7, 2.6, 2.1, 1.8, 1.5, 0.9, 0.6, 2.5 " ","Maximum", 2.5, 4.9, 6.5, 6.7, 5.2, 4.7, 4.3, 3.8, 3.7, 3.1, 2.5, 1.9, 3.4 "90 ","Average", 1.5, 3.1, 4.2, 4.3, 3.3, 3.0, 2.7, 2.4, 2.5, 2.0, 1.5, 1.1, 2.6 " ","Minimum", 0.8, 1.8, 2.7, 2.7, 2.4, 2.2, 2.2, 1.8, 1.5, 1.4, 0.9, 0.6, 2.3 " ","Maximum", 2.5, 4.8, 6.2, 6.1, 4.6, 3.8, 3.5, 3.2, 3.3, 2.9, 2.5, 1.9, 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", 0.7, 2.1, 4.1, 5.9, 6.1, 6.1, 5.3, 4.0, 3.1, 1.7, 0.8, 0.4, 3.4 " ","Minimum", 0.4, 1.4, 2.7, 4.0, 4.5, 4.2, 3.8, 3.0, 2.0, 1.3, 0.6, 0.3, 2.9 " ","Maximum", 1.1, 3.2, 6.0, 8.3, 8.0, 8.3, 7.1, 5.4, 4.2, 2.4, 1.3, 0.7, 3.8 "Lat - 15 ","Average", 1.3, 3.3, 5.5, 6.9, 6.6, 6.3, 5.5, 4.3, 3.7, 2.4, 1.4, 0.9, 4.0 " ","Minimum", 0.8, 1.9, 3.3, 4.4, 4.6, 4.1, 3.7, 3.0, 2.3, 1.7, 0.9, 0.6, 3.3 " ","Maximum", 2.3, 5.2, 8.2,10.0, 8.7, 8.7, 7.6, 6.0, 5.2, 3.5, 2.4, 1.6, 4.6 "Lat ","Average", 1.5, 3.5, 5.6, 6.9, 6.4, 6.0, 5.3, 4.1, 3.7, 2.5, 1.6, 1.0, 4.0 " ","Minimum", 0.9, 2.0, 3.4, 4.4, 4.4, 3.8, 3.5, 2.9, 2.2, 1.8, 0.9, 0.6, 3.3 " ","Maximum", 2.5, 5.6, 8.5,10.0, 8.5, 8.4, 7.4, 5.9, 5.2, 3.7, 2.6, 1.9, 4.6 "Lat + 15 ","Average", 1.6, 3.6, 5.6, 6.7, 6.0, 5.6, 4.9, 3.9, 3.5, 2.5, 1.6, 1.1, 3.9 " ","Minimum", 0.9, 2.0, 3.3, 4.2, 4.1, 3.5, 3.2, 2.7, 2.1, 1.7, 1.0, 0.6, 3.2 " ","Maximum", 2.7, 5.7, 8.5, 9.8, 8.1, 7.9, 6.9, 5.6, 5.0, 3.7, 2.8, 2.0, 4.5 "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", 1.6, 3.6, 5.6, 6.9, 6.7, 6.5, 5.7, 4.3, 3.7, 2.5, 1.6, 1.1, 4.2 " ","Minimum", 0.9, 2.1, 3.4, 4.5, 4.7, 4.3, 3.9, 3.1, 2.3, 1.8, 1.0, 0.7, 3.5 " ","Maximum", 2.7, 5.7, 8.5,10.0, 8.9, 9.0, 7.8, 6.1, 5.2, 3.7, 2.8, 2.0, 4.7 "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", 1.0, 2.1, 2.7, 2.9, 2.6, 2.4, 1.9, 1.4, 1.5, 1.3, 1.0, 0.7, 1.8 "Hor Axis ","Minimum", 0.4, 0.8, 1.0, 0.9, 1.3, 0.7, 0.6, 0.6, 0.6, 0.7, 0.4, 0.3, 1.3 " ","Maximum", 2.0, 4.0, 5.0, 4.8, 4.1, 4.0, 3.6, 2.8, 2.5, 2.2, 1.9, 1.5, 2.2 "1-X, N-S ","Average", 0.4, 1.3, 2.5, 3.4, 3.4, 3.1, 2.5, 1.7, 1.6, 0.9, 0.4, 0.2, 1.8 "Hor Axis ","Minimum", 0.2, 0.5, 0.8, 1.1, 1.7, 0.9, 0.7, 0.8, 0.6, 0.5, 0.2, 0.1, 1.2 " ","Maximum", 0.8, 2.5, 4.6, 5.9, 5.3, 5.2, 4.5, 3.4, 2.7, 1.6, 0.9, 0.5, 2.2 "1-X, N-S ","Average", 1.0, 2.4, 3.6, 4.1, 3.6, 3.2, 2.6, 2.0, 2.1, 1.5, 1.0, 0.7, 2.3 "Tilt=Lat ","Minimum", 0.4, 0.9, 1.3, 1.3, 1.8, 1.0, 0.8, 0.9, 0.8, 0.9, 0.5, 0.3, 1.6 " ","Maximum", 2.0, 4.6, 6.7, 7.1, 5.7, 5.3, 4.7, 4.0, 3.5, 2.7, 2.0, 1.5, 2.9 "2-X ","Average", 1.1, 2.5, 3.6, 4.2, 3.8, 3.4, 2.8, 2.0, 2.1, 1.5, 1.1, 0.8, 2.4 " ","Minimum", 0.4, 0.9, 1.3, 1.3, 1.9, 1.1, 0.8, 0.9, 0.8, 0.9, 0.5, 0.3, 1.7 " ","Maximum", 2.2, 4.7, 6.7, 7.2, 6.0, 5.7, 5.1, 4.1, 3.5, 2.7, 2.1, 1.6, 3.0 "AVERAGE CLIMATIC CONDITIONS" "Element "," ","Jan","Feb","Mar","Apr","May","Jun","Jul","Aug","Sep","Oct","Nov","Dec","Year" "Temp. ","(deg C)",-14.1,-14.4,-10.4, -4.7, 4.4, 10.3, 12.8, 11.6, 7.3, -1.4, -8.4,-13.1, -1.7 "Daily Min","(deg C)",-17.6,-18.2,-14.8, -9.1, -0.2, 5.7, 8.7, 7.9, 3.5, -4.6,-11.7,-16.6, -5.6 "Daily Max","(deg C)",-10.6,-10.7, -6.1, -0.4, 9.0, 14.9, 16.8, 15.3, 11.1, 1.7, -5.2, -9.6, 2.2 "Record Lo","(deg C)",-44.4,-38.9,-39.4,-30.0,-15.6, -2.2, -0.6, -2.2, -7.8,-20.6,-31.1,-38.3,-44.4 "Record Hi","(deg C)", 8.9, 7.8, 7.8, 12.8, 26.1, 30.0, 28.3, 28.9, 22.2, 13.3, 8.9, 7.2, 30.0 "HDD,Base="," 18.3C ", 1004, 918, 891, 690, 432, 242, 172, 208, 330, 613, 803, 973, 7277 "CDD,Base="," 18.3C ", 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 "Rel Hum ","percent", 76, 73, 78, 80, 76, 76, 80, 84, 83, 84, 82, 77, 79 "Wind Spd."," (m/s) ", 6.5, 6.8, 6.3, 5.8, 5.2, 5.0, 4.8, 4.9, 5.2, 5.6, 5.9, 6.4, 5.7