Climate data for Jajce (1961–1990) Month Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Year Record high °C (°F) 16.6 (61.9) 21.4 (70.5) 26.6 (79.9) 29.4 (84.9) 33.4 (92.1) 34.6 (94.3) 37.6 (99.7) 37.0 (98.6) 37.0 (98.6) 29.4 (84.9) 23.2 (73.8) 19.8 (67.6) 37.6 (99.7) Average high °C (°F) 3.1 (37.6) 6.4 (43.5) 11.1 (52) 16.0 (60.8) 21.0 (69.8) 23.9 (75) 26.3 (79.3) 26.2 (79.2) 22.7 (72.9) 17.3 (63.1) 10.6 (51.1) 4.2 (39.6) 15.7 (60.3) Daily mean °C (°F) −0.8 (30.6) 1.8 (35.2) 5.5 (41.9) 10.1 (50.2) 14.5 (58.1) 17.4 (63.3) 19.2 (66.6) 18.7 (65.7) 15.4 (59.7) 10.8 (51.4) 5.7 (42.3) 0.7 (33.3) 9.9 (49.8) Average low °C (°F) −4.7 (23.5) −2.6 (27.3) 0.1 (32.2) 4.1 (39.4) 8.2 (46.8) 11.4 (52.5) 12.5 (54.5) 12.4 (54.3) 9.9 (49.8) 5.7 (42.3) 1.2 (34.2) −2.9 (26.8) 4.6 (40.3) Record low °C (°F) −25.4 (−13.7) −18.6 (−1.5) −15.2 (4.6) −4.4 (24.1) −1.5 (29.3) 1.2 (34.2) 5.4 (41.7) 4.8 (40.6) −2.0 (28.4) −5.8 (21.6) −14.8 (5.4) −18.8 (−1.8) −25.4 (−13.7) Average precipitation mm (inches) 60.2 (2.37) 61.3 (2.413) 65.7 (2.587) 70.3 (2.768) 87.4 (3.441) 96.5 (3.799) 81.8 (3.22) 77.9 (3.067) 74.8 (2.945) 68.4 (2.693) 91.5 (3.602) 80.5 (3.169) 916.2 (36.071) Average precipitation days (≥ 0.1 mm) 12.0 11.3 13.0 13.7 14.5 14.4 10.0 10.0 10.1 9.6 11.5 12.8 143.1 Average snowy days (≥ 1.0 cm) 15.4 11.5 4.0 0.5 0.0 0.0 0.0 0.0 0.0 0.0 3.5 11.5 46.4 Average relative humidity (%) 82.7 79.4 75.1 72.3 75.2 76.9 75.8 76.8 78.8 80.2 81.9 84.4 78.3 Mean monthly sunshine hours 52.5 71.1 115.3 147.7 180.7 197.3 243.8 221.2 165.6 120.5 72.0 44.2 1,631.9 Source: Meteorological Institute of Bosnia and Herzegovina[16]