{"name":"Viechtach","state":"Bayern","district":"Landkreis Regen","lat":49.08,"lon":12.8857,"population":8653,"elevation_m":440,"url":"https://solaratlas24.de/ort/viechtach.html","pv_kwh_per_kwp":{"opt":1089,"s35":1087,"ew":862,"e35":870,"w35":854,"s15":1023,"s90":771},"pv_monthly_kwh_per_kwp_optimal":[41.2,69.3,97.3,119.5,120.4,124.2,127.4,117.8,102.7,81.9,49.2,38.1],"optimal_tilt_deg":38,"optimal_azimuth_deg":-4,"climate_1991_2020":{"frost":104,"hot":9,"ice":25,"prec":880,"rad":1129,"summer":42,"sun":1663,"temp":8.4},"climate_1961_1990":{"frost":128,"hot":2,"ice":38,"prec":871,"summer":26,"sun":1652,"temp":7.0},"monthly_normals_1991_2020":{"prec":[67,58,64,46,83,97,99,94,72,64,62,73],"rad":[28,47,84,126,157,166,166,145,99,61,29,21],"sun":[53,79,126,181,205,215,226,218,154,109,56,43],"temp":[-1.0,-0.2,3.6,8.4,13.0,16.3,18.0,17.5,12.9,8.3,3.4,0.1]},"annual_series":{"frost":{"start":1951,"values":[138,136,136,128,139,136,116,134,134,119,104,148,138,130,135,114,128,134,135,127,129,133,147,87,119,125,96,131,129,140,125,129,117,138,136,123,119,112,107,113,123,110,110,84,114,134,121,106,104,90,105,99,132,113,108,102,83,100,98,118,107,96,105,75,100,94,95,95,86,99,113,92,80,67,119]},"hot":{"start":1951,"values":[3,12,2,1,1,1,7,3,4,2,3,3,4,6,2,2,4,1,6,1,7,6,1,4,1,6,1,1,1,3,2,2,10,4,4,4,3,4,3,4,4,9,3,15,7,4,3,9,4,7,6,6,21,4,6,13,6,9,4,10,6,11,17,10,25,5,6,14,14,11,6,13,13,12,13]},"ice":{"start":1951,"values":[17,44,42,44,46,59,27,35,32,30,30,50,72,54,38,27,31,40,52,49,34,33,42,10,18,37,29,39,25,37,47,30,35,27,51,44,48,21,28,28,38,24,37,20,38,53,26,33,33,20,27,24,32,36,44,30,11,9,29,58,14,25,32,0,7,16,22,14,6,2,19,8,9,7,16]},"prec":{"start":1951,"values":[665,910,547,996,827,922,891,1052,714,923,869,830,612,803,1130,1094,852,806,728,1010,629,625,746,1147,812,704,915,993,964,984,1113,726,787,887,867,988,1004,1046,706,762,732,866,960,912,1045,761,736,997,842,959,1164,1223,643,831,910,976,1022,855,1035,850,821,937,828,725,627,897,854,726,755,769,974,894,913,1025,692]},"rad":{"start":1991,"values":[1092,1095,1116,1114,1040,1066,1133,1050,1096,1095,1087,1092,1240,1105,1128,1168,1151,1117,1147,1101,1203,1187,1084,1095,1130,1119,1164,1234,1213,1203,1155,1233,1210,1157,1218]},"summer":{"start":1951,"values":[34,40,37,18,17,17,24,28,30,20,31,25,26,37,15,20,30,22,27,26,32,26,33,17,33,34,20,15,26,15,29,33,48,19,31,37,26,27,24,32,26,40,28,46,38,24,32,37,28,36,35,37,68,34,39,48,42,44,37,39,42,51,50,43,57,44,55,67,54,47,38,54,55,59,52]},"sun":{"start":1951,"values":[1748,1509,1930,1564,1554,1592,1649,1643,2020,1600,1761,1809,1730,1799,1470,1510,1761,1663,1764,1471,1825,1657,1706,1522,1679,1862,1471,1461,1592,1498,1434,1747,1704,1553,1625,1688,1438,1519,1590,1754,1666,1601,1641,1642,1478,1551,1733,1492,1440,1516,1518,1593,1969,1495,1657,1763,1764,1655,1654,1496,1900,1766,1477,1627,1733,1592,1708,1979,1869,1911,1712,1887,1771,1721,1916]},"temp":{"start":1881,"values":[6.7,7.5,7.0,7.7,7.2,7.5,6.1,6.3,6.6,6.7,6.7,7.2,7.1,7.5,6.3,6.3,7.0,7.8,6.9,7.4,7.0,6.8,7.5,7.8,7.1,7.3,7.2,6.6,6.7,7.4,7.9,6.6,7.4,7.2,7.4,8.2,7.0,8.0,6.9,8.3,8.4,6.7,7.7,6.6,7.4,7.7,7.2,7.5,5.8,7.5,6.0,6.8,5.7,8.0,7.0,7.2,7.5,7.1,6.7,5.3,5.9,6.2,7.5,6.9,7.5,7.3,7.3,7.7,7.9,7.8,7.7,7.1,7.7,6.5,6.3,5.7,7.3,7.1,7.5,7.2,7.7,5.9,5.9,6.6,6.2,7.5,7.4,6.8,6.6,6.6,6.9,6.7,6.6,7.7,7.6,7.1,7.6,6.4,6.9,6.3,7.2,7.6,7.7,6.6,6.3,6.9,6.3,7.7,7.9,7.9,6.9,8.2,7.4,8.8,7.7,6.2,7.4,7.9,7.9,8.6,7.8,8.5,8.3,7.8,7.5,8.5,9.2,8.9,8.5,7.4,8.9,8.5,8.2,9.8,9.7,9.0,8.9,10.0,9.8,9.5,8.4,9.9,10.1,10.5,9.3]}},"recent_months":[{"month":"2025-11","pv_kwh_per_kwp_est":62.1,"radiation_kwh_m2":36.6,"sunshine_h":81.0,"temp_c":3.2,"precip_mm":56.0},{"month":"2025-12","pv_kwh_per_kwp_est":47.0,"radiation_kwh_m2":25.9,"sunshine_h":102.0,"temp_c":1.6,"precip_mm":21.0},{"month":"2026-01","pv_kwh_per_kwp_est":57.4,"radiation_kwh_m2":39.0,"sunshine_h":75.0,"temp_c":-2.4,"precip_mm":45.0},{"month":"2026-02","pv_kwh_per_kwp_est":59.1,"radiation_kwh_m2":40.1,"sunshine_h":58.0,"temp_c":2.7,"precip_mm":96.0},{"month":"2026-03","pv_kwh_per_kwp_est":116.8,"radiation_kwh_m2":100.8,"sunshine_h":172.0,"temp_c":5.2,"precip_mm":21.0},{"month":"2026-04","pv_kwh_per_kwp_est":144.3,"radiation_kwh_m2":152.1,"sunshine_h":234.0,"temp_c":9.1,"precip_mm":8.0},{"month":"2026-05","pv_kwh_per_kwp_est":143.9,"radiation_kwh_m2":187.7,"sunshine_h":260.0,"temp_c":14.7,"precip_mm":48.0},{"month":"2026-06","pv_kwh_per_kwp_est":137.4,"radiation_kwh_m2":183.7,"sunshine_h":272.0,"temp_c":19.4,"precip_mm":67.0},{"month":"2026-07","pv_kwh_per_kwp_est":148.6,"radiation_kwh_m2":193.6,"sunshine_h":296.0,"temp_c":19.9,"precip_mm":49.0},{"month":"2026-08","pv_kwh_per_kwp_est":133.0,"radiation_kwh_m2":163.7,"sunshine_h":257.0,"temp_c":20.7,"precip_mm":86.0},{"month":"2026-09","pv_kwh_per_kwp_est":125.1,"radiation_kwh_m2":120.6,"sunshine_h":222.0,"temp_c":14.7,"precip_mm":39.0},{"month":"2026-10","pv_kwh_per_kwp_est":102.6,"radiation_kwh_m2":76.4,"sunshine_h":141.0,"temp_c":9.4,"precip_mm":56.0}],"sources":["PVGIS 5.3 © European Union (JRC)","Deutscher Wetterdienst, Climate Data Center (CC BY 4.0)"],"license":"CC BY 4.0","attribution":"SolarAtlas24: Photovoltaik und Klima in Viechtach. Datenbasis PVGIS (EU JRC) und DWD. https://solaratlas24.de/ort/viechtach.html (Stand 2026-11)"}