MONTHLY CLIMATOLOGICAL SUMMARY for DEC. 2025 NAME: Reynivellir 4 CITY: Reynivöllum, Selfossi STATE: ELEV: 20 m LAT: 63° 56' 13" N LONG: 20° 59' 35" W TEMPERATURE (°C), RAIN (mm), WIND SPEED (m/s) HEAT COOL AVG MEAN DEG DEG WIND DOM DAY TEMP HIGH TIME LOW TIME DAYS DAYS RAIN SPEED HIGH TIME DIR ------------------------------------------------------------------------------------ 1 3.6 4.5 10:20 2.5 23:10 14.7 0.0 0.0 4.4 14.8 4:30 ENE 2 1.8 3.3 22:10 -0.4 14:30 16.5 0.0 0.0 3.1 12.5 5:20 ENE 3 1.7 3.4 1:40 -1.4 20:30 16.7 0.0 0.0 2.9 10.7 22:40 ENE 4 0.7 1.6 13:10 -0.5 1:40 17.6 0.0 0.0 3.9 10.7 23:10 NE 5 2.3 3.8 13:00 0.3 5:40 16.0 0.0 0.8 3.6 10.3 7:30 ENE 6 3.7 5.2 12:20 2.1 2:30 14.6 0.0 0.0 3.5 11.6 0:10 ENE 7 4.6 5.3 7:20 2.8 1:50 13.8 0.0 0.0 4.1 13.4 16:50 ENE 8 4.3 5.4 15:20 3.4 10:20 14.0 0.0 0.0 3.4 10.3 5:30 ENE 9 4.2 5.1 19:40 3.3 12:40 14.1 0.0 0.6 4.0 11.6 20:30 ENE 10 3.9 5.2 0:40 2.6 22:50 14.4 0.0 0.0 4.3 15.2 6:00 ENE 11 4.6 7.1 11:00 3.0 0:10 13.8 0.0 5.4 3.9 15.2 7:20 ENE 12 4.9 6.8 19:10 2.9 6:40 13.4 0.0 6.4 3.1 12.1 19:50 ENE 13 3.1 5.1 4:10 1.3 23:20 15.2 0.0 0.8 1.7 8.5 20:30 ENE 14 1.1 3.2 1:20 -1.2 00:00 17.2 0.0 0.8 1.3 8.5 9:00 ENE 15 -1.3 0.2 22:50 -2.8 15:50 19.6 0.0 0.0 2.3 7.6 23:00 ENE 16 -2.0 0.6 00:00 -4.7 10:40 20.3 0.0 0.0 2.6 10.3 23:50 ENE 17 2.4 3.6 18:40 0.3 0:30 15.9 0.0 1.0 3.8 13.9 8:50 ENE 18 3.1 3.6 13:00 1.9 18:50 15.2 0.0 0.4 3.1 10.3 15:20 ENE 19 2.8 5.8 22:30 0.4 11:00 15.4 0.0 0.4 2.6 8.5 14:20 ENE 20 6.6 8.8 12:50 4.6 0:10 11.7 0.0 8.8 1.7 8.0 8:30 E 21 6.9 8.5 15:10 6.0 22:10 11.4 0.0 0.0 2.0 8.0 23:30 ENE 22 6.7 8.2 9:00 3.2 00:00 11.6 0.0 4.0 2.8 11.6 18:00 SE 23 4.4 7.4 22:30 0.5 8:30 13.8 0.0 5.8 2.0 11.2 19:30 SSW 24 8.1 8.7 22:50 7.2 0:20 10.2 0.0 6.0 3.2 12.1 19:00 SSW 25 8.4 8.7 21:30 8.0 14:20 9.9 0.0 1.2 2.8 8.9 0:40 SSW 26 3.3 8.7 2:40 -0.9 00:00 15.0 0.0 1.2 1.3 11.2 3:40 WSW 27 -0.2 2.2 21:40 -2.6 4:30 18.5 0.0 2.4 1.3 5.4 13:50 ENE 28 5.0 6.9 11:30 1.4 00:00 13.3 0.0 0.4 0.2 1.3 3:10 ENE 29 0.1 1.7 1:20 -1.8 11:00 18.2 0.0 0.0 0.4 3.1 2:40 ENE 30 1.6 4.9 22:40 -1.1 2:10 16.7 0.0 0.0 0.4 4.0 22:10 WSW 31 3.1 5.9 7:00 -2.0 00:00 15.2 0.0 0.6 2.2 12.5 7:50 N ------------------------------------------------------------------------------------- 3.3 8.8 20 -4.7 16 463.6 0.0 46.9 2.6 15.2 10 ENE Max >= 32.0: 0 Max <= 0.0: 0 Min <= 0.0: 11 Min <= -18.0: 0 Max Rain: 8.79 ON 20.12.25 Days of Rain: 18 (> .2 mm) 7 (> 2 mm) 0 (> 20 mm) Heat Base: 18.3 Cool Base: 18.3 Method: Integration