"City: ","BOULDER " "State: ","CO" "WBAN No: ", 94018 "Lat(N): ", 40.02 "Long(W): ",105.25 "Elev(ft):", 5361 "Pres(psia):",12.1 "Stn Type:","Primary " "SHADING GEOMETRY IN DIMENSIONLESS UNITS" "Window: ", 1.000 "Overhang:", 0.534 "Vert Gap:", 0.321 "AVERAGE INCIDENT SOLAR RADIATION (Btu/sq.ft./day), Percentage Uncertainty = 9" " "," ","Jan","Feb","Mar","Apr","May","Jun","Jul","Aug","Sep","Oct","Nov","Dec","Year" "HORIZ. ","Global ", 750,1030,1390,1750,1960,2160,2120,1890,1580,1200, 830, 670,1450 " ","Std.Dev.", 52, 51, 96, 115, 152, 164, 116, 115, 119, 95, 46, 41, 54 " ","Minimum ", 660, 880,1170,1510,1530,1810,1780,1590,1250, 990, 730, 610,1340 " ","Maximum ", 850,1110,1570,1940,2270,2460,2350,2100,1760,1340, 900, 740,1520 " ","Diffuse ", 280, 380, 520, 630, 710, 670, 650, 580, 450, 340, 290, 250, 480 "Clear Day","Global ", 950,1310,1830,2330,2650,2770,2680,2390,1950,1440,1020, 840,1850 "NORTH ","Global ", 200, 260, 350, 440, 550, 630, 580, 460, 350, 270, 210, 180, 370 " ","Diffuse ", 200, 260, 350, 420, 480, 490, 480, 430, 350, 270, 210, 180, 340 "Clear Day","Global ", 170, 230, 310, 410, 590, 720, 650, 460, 320, 250, 190, 160, 370 "EAST ","Global ", 550, 710, 910,1110,1200,1320,1340,1220,1020, 820, 590, 490, 940 " ","Diffuse ", 250, 330, 430, 520, 570, 570, 570, 520, 420, 340, 270, 220, 420 "Clear Day","Global ", 750, 960,1240,1460,1570,1590,1560,1460,1270,1020, 780, 680,1190 "SOUTH ","Global ",1370,1410,1300,1110, 890, 810, 850,1020,1270,1460,1370,1330,1180 " ","Diffuse ", 360, 430, 500, 540, 540, 520, 520, 510, 460, 410, 370, 330, 460 "Clear Day","Global ",2060,2100,1920,1470,1080, 920, 980,1270,1690,2000,2050,2010,1630 "WEST ","Global ", 520, 680, 840, 980,1020,1070,1010, 970, 920, 780, 570, 480, 820 " ","Diffuse ", 250, 330, 440, 530, 580, 590, 570, 520, 430, 340, 270, 220, 420 "Clear Day","Global ", 750, 960,1240,1460,1570,1590,1560,1460,1270,1020, 780, 680,1190 "AVERAGE TRANSMITTED SOLAR RADIATION (Btu/sq.ft./day) FOR DOUBLE GLAZING, Percentage Uncertainty = 9" " "," ","Jan","Feb","Mar","Apr","May","Jun","Jul","Aug","Sep","Oct","Nov","Dec","Year" "HORIZ. ","Unshaded", 480, 700, 980,1260,1420,1580,1550,1380,1130, 830, 540, 420,1020 "NORTH ","Unshaded", 140, 180, 240, 300, 360, 400, 370, 310, 240, 190, 150, 120, 250 " ","Shaded ", 120, 170, 220, 270, 320, 360, 340, 280, 220, 170, 130, 110, 230 "EAST ","Unshaded", 370, 500, 650, 790, 860, 950, 960, 880, 730, 580, 410, 330, 670 " ","Shaded ", 340, 450, 570, 690, 730, 800, 810, 760, 640, 520, 370, 300, 580 "SOUTH ","Unshaded",1030,1040, 900, 710, 540, 470, 500, 640, 850,1050,1030,1010, 810 " ","Shaded ",1010, 970, 710, 450, 340, 330, 330, 370, 600, 930,1000, 990, 670 "WEST ","Unshaded", 360, 470, 590, 690, 720, 760, 710, 690, 650, 550, 390, 330, 580 " ","Shaded ", 330, 420, 520, 600, 610, 640, 610, 590, 570, 490, 360, 300, 500 "AVERAGE CLIMATIC CONDITIONS" "Element "," ","Jan","Feb","Mar","Apr","May","Jun","Jul","Aug","Sep","Oct","Nov","Dec","Year" "Temp. ","(deg F) ", 29.7, 33.4, 39.0, 48.2, 57.2, 66.9, 73.5, 71.4, 62.3, 51.4, 39.0, 31.0, 50.3 "Daily Min","(deg F) ", 16.1, 20.2, 25.8, 34.5, 43.6, 52.4, 58.6, 56.9, 47.6, 36.4, 25.4, 17.4, 36.2 "Daily Max","(deg F) ", 43.2, 46.6, 52.2, 61.8, 70.8, 81.4, 88.2, 85.8, 76.9, 66.3, 52.5, 44.5, 64.2 "Record Lo","(deg F) ",-25.0,-30.0,-11.0, -2.0, 22.0, 30.0, 43.0, 41.0, 17.0, 3.0, -8.0,-25.0,-30.0 "Record Hi","(deg F) ", 73.0, 76.0, 84.0, 89.0, 96.0,104.0,104.0,101.0, 97.0, 89.0, 79.0, 75.0,104.0 "HDD,Base="," 65F ", 1094, 885, 806, 504, 253, 71, 0, 0, 144, 429, 780, 1054, 6020 "CDD,Base="," 65F ", 0, 0, 0, 0, 11, 128, 267, 203, 63, 7, 0, 0, 679 "Hum Ratio","#w/#air ",0.0021,0.0023,0.0028,0.0037,0.0056,0.0075,0.0090,0.0087,0.0064,0.0041,0.0029,0.0021,0.0048 "Wind Spd."," (mph) ", 8.3, 8.5, 9.2, 9.8, 9.2, 8.6, 8.1, 7.8, 7.7, 7.6, 7.8, 8.0, 8.4 "Clearness","Index Kt", 0.55, 0.56, 0.56, 0.57, 0.56, 0.59, 0.59, 0.58, 0.58, 0.58, 0.55, 0.54, 0.57 "AVERAGE INCIDENT ILLUMINANCE (klux-hr) FOR MOSTLY CLEAR AND MOSTLY CLOUDY CONDITIONS, Percentage Uncertainty = 9" " "," "," "," ","March"," "," "," "," ","June"," "," "," "," ","Sept"," "," "," "," "," Dec"," "," " " "," "," 9am","11am"," 1pm"," 3pm"," 5pm"," 9am","11am"," 1pm"," 3pm"," 5pm"," 9am","11am"," 1pm"," 3pm"," 5pm"," 9am","11am"," 1pm"," 3pm"," 5pm" "HORIZ. ","M.Clear ", 42, 73, 82, 65, 27, 51, 84,101, 95, 68, 31, 69, 84, 77, 47, 16, 43, 48, 29, 2 " ","M.Cloudy", 28, 51, 59, 44, 18, 34, 63, 78, 67, 46, 18, 45, 60, 52, 31, 10, 29, 34, 20, 2 "NORTH ","M.Clear ", 10, 13, 15, 13, 8, 18, 14, 16, 16, 14, 8, 13, 14, 14, 10, 5, 10, 10, 8, 1 " ","M.Cloudy", 10, 15, 17, 14, 7, 14, 16, 17, 17, 14, 7, 14, 16, 15, 11, 5, 10, 11, 8, 1 "EAST ","M.Clear ", 81, 56, 15, 13, 8, 86, 70, 29, 16, 14, 77, 71, 26, 14, 10, 47, 41, 10, 8, 1 " ","M.Cloudy", 38, 37, 17, 14, 7, 46, 51, 26, 17, 14, 28, 41, 23, 15, 11, 18, 24, 11, 8, 1 "SOUTH ","M.Clear ", 44, 74, 85, 67, 28, 11, 31, 46, 41, 20, 24, 59, 75, 69, 39, 44, 87, 94, 67, 5 " ","M.Cloudy", 24, 46, 55, 39, 14, 11, 27, 38, 32, 17, 12, 35, 50, 42, 23, 17, 44, 50, 31, 2 "WEST ","M.Clear ", 10, 13, 24, 68, 70, 11, 14, 16, 52, 79, 8, 13, 14, 54, 77, 5, 10, 23, 52, 8 " ","M.Cloudy", 10, 15, 21, 40, 29, 11, 16, 17, 38, 47, 7, 14, 16, 35, 39, 5, 10, 17, 25, 3 "M.Clear ","(% hrs) ", 38, 38, 32, 30, 29, 59, 60, 51, 36, 28, 57, 58, 57, 50, 44, 41, 44, 44, 42, 43