MONTHLY CLIMATOLOGICAL SUMMARY for DEC. 1998 NAME: home CITY: Lake Forest STATE: CA ELEV: 720 LAT: 33 39.550 N LONG: 117 40.199 W TEMPERATURE (°F), RAIN (in), WIND SPEED (mph) HEAT COOL AVG MEAN DEG DEG WIND DOM DAY TEMP HIGH TIME LOW TIME DAYS DAYS RAIN SPEED HIGH TIME DIR ------------------------------------------------------------------------------------ 1 53.9 65.3 1:30p 46.9 7:00a 8.9 0.0 0.48 1.1 9.0 2:30p SE 2 55.6 64.1 2:30p 47.8 6:30a 9.1 0.0 0.00 1.1 7.0 1:30p SE 3 55.7 62.8 2:00p 50.5 4:30a 8.4 0.0 0.10 1.4 13.0 10:30p S 4 51.6 61.0 2:00p 45.2 7:00a 11.9 0.0 0.06 1.6 14.0 2:00p SSE 5 48.0 57.0 3:30p 43.4 10:30p 14.8 0.0 0.16 2.5 17.0 1:30p NW 6 46.9 54.0 3:00p 37.8 12:00m 19.1 0.0 0.30 5.7 31.0 10:30a NNW 7 48.6 59.5 2:00p 39.0 12:30a 15.8 0.0 0.00 3.2 27.0 1:00a SSE 8 49.8 61.2 3:00p 41.4 3:30a 13.7 0.0 0.00 1.8 8.0 1:30p SE 9 58.0 63.6 12:00p 45.1 12:30a 10.7 0.0 0.00 17.0 53.0 6:30p NE 10 57.0 66.0 3:00p 48.2 11:00p 7.9 0.0 0.00 5.3 29.0 4:00a ENE 11 53.6 67.3 3:00p 44.3 6:30a 9.2 0.0 0.00 1.8 11.0 3:30p SE 12 57.9 72.2 2:30p 46.8 2:00a 5.5 0.0 0.00 1.5 7.0 3:00p SE 13 62.3 74.1 3:30p 49.2 12:00m 3.4 0.0 0.00 2.2 15.0 12:00p SE 14 52.4 64.9 2:30p 44.7 5:00a 10.2 0.0 0.02 2.3 14.0 4:00p SE 15 66.4 78.2 3:00p 45.1 2:00a 3.4 0.0 0.01 7.8 42.0 8:30a NE 16 74.5 80.0 2:30p 66.9 2:30a 0.0 8.5 0.00 13.0 37.0 7:30p NE 17 65.3 82.6 1:30p 52.0 5:30a 0.0 2.3 0.00 2.8 17.0 9:30a SE 18 57.0 64.1 2:00p 52.7 4:30a 6.6 0.0 0.00 3.0 15.0 12:00p SSE 19 54.7 61.0 12:30p 51.1 12:00m 9.0 0.0 0.21 2.1 14.0 1:00p SSE 20 49.5 56.0 1:00p 40.1 12:00m 17.0 0.0 0.02 3.1 17.0 11:00a NW 21 44.9 58.0 2:00p 35.4 7:00a 18.3 0.0 0.00 2.1 12.0 5:30a ESE 22 45.0 55.6 2:00p 38.2 6:30a 18.1 0.0 0.00 1.6 10.0 1:00p SE 23 47.7 59.3 3:00p 38.5 1:30a 16.1 0.0 0.00 3.1 21.0 5:30a SE 24 48.3 63.1 2:30p 39.0 5:30a 14.0 0.0 0.00 2.0 14.0 3:00p SE 25 54.2 67.8 2:30p 44.0 6:00a 9.1 0.0 0.00 1.7 9.0 2:30p SE 26 55.7 67.1 12:30p 48.0 6:30a 7.5 0.0 0.00 1.6 10.0 3:00p SE 27 55.8 68.7 3:30p 47.7 2:00a 6.8 0.0 0.00 1.6 8.0 3:00p ESE 28 59.6 71.8 2:30p 51.9 10:30p 3.1 0.0 0.00 1.7 10.0 2:00p SE 29 58.5 72.1 3:30p 51.4 7:00a 3.3 0.0 0.00 1.5 12.0 1:30p SE 30 58.0 74.1 2:30p 48.6 12:00m 3.7 0.0 0.00 1.6 8.0 7:00a SE 31 51.8 60.3 2:00p 46.1 7:00a 11.8 0.0 0.00 1.7 10.0 11:30a S ------------------------------------------------------------------------------------- 54.8 82.6 17 35.4 21 295.9 10.8 1.36 3.2 53.0 9 SE Max >= 90.0: 0 Max <= 32.0: 0 Min <= 32.0: 0 Min <= 0.0: 0 Max Rain: 0.48 ON 12/01/98 Days of Rain: 8 (>.01 in) 4 (>.1 in) 0 (>1 in) Heat Base: 65.0 Cool Base: 65.0 Method: (High + Low) / 2