MONTHLY CLIMATOLOGICAL SUMMARY for APR. 2004 NAME: Charleswood CITY: Winnipeg STATE: MB ELEV: 235 m LAT: 49° 54' 00" N LONG: 97° 18' 00" W TEMPERATURE (°C), RAIN (mm), SNOW/SOG (cm)WIND SPEED (km/h) HEAT AVG MEAN DEG WIND DOM DAY TEMP HIGH TIME LOW TIME DAYS SNOW RAIN SPEED HIGH TIME DIR SOG ------------------------------------------------------------------------------------ 1 4.9 10.6 3:00p 0.1 12:00m 13.4 0.0 0.0 7.7 32.2 9:15a S 5 2 1.5 6.6 1:00p -2.8 12:00m 16.8 0.0 0.8 5.3 32.2 1:00p N 3 3 -0.2 3.8 2:45p -5.0 12:00m 18.5 0.0 0.0 7.4 41.8 6:45a N 2 4 2.8 8.9 4:00p -5.3 1:30a 14.9 0.0 0.0 8.2 41.8 4:45p S 2 5 7.5 13.5 1:15p 3.6 2:00a 10.8 0.0 0.0 8.5 41.8 5:15a S T 6 8.3 18.1 3:30p -2.7 7:15a 10.0 0.0 0.0 1.4 19.3 2:45p N 7 4.2 8.7 12:15a -1.2 12:00m 14.1 0.0 6.9 9.3 48.3 12:00p N 8 -0.7 3.5 2:30p -3.6 6:45a 18.9 0.0 0.0 9.0 38.6 2:15p N 9 -2.6 0.6 4:45p -6.3 12:00m 20.9 Tr 0.0 9.5 38.6 1:00p N T 10 -4.5 -1.4 5:00p -7.7 5:15a 22.8 Tr 0.0 7.9 30.6 3:30p N 11 -0.6 5.5 4:00p -5.9 7:00a 18.9 0.0 0.0 4.0 25.7 1:15p N 12 2.3 9.5 4:00p -5.5 3:15a 16.0 0.0 0.0 7.4 45.1 5:15p SSW 13 3.7 8.6 4:15p -0.9 11:00p 13.8 0.0 0.0 5.0 30.6 3:00p N 14 2.2 7.6 3:30p -2.6 5:00a 16.1 0.0 0.0 6.0 29.0 3:30p N 15 2.3 5.3 11:00a 0.1 12:00m 15.7 0.0 7.6 6.4 32.2 8:15a NE 16 2.3 7.0 4:15p -0.9 2:00a 15.6 0.8 0.5 3.9 25.7 1:45p N T 17 3.4 8.1 2:45p -3.6 5:00a 14.9 0.0 0.0 1.6 20.9 8:45p ENE 18 4.4 7.4 5:30p 2.2 1:00a 13.9 0.0 2.3 9.2 35.4 5:00p N 19 6.2 12.2 2:45p 0.1 4:30a 12.1 0.0 0.0 6.1 29.0 12:45a N 20 9.2 15.8 2:45p 4.2 5:30a 9.1 0.0 1.5 11.3 41.8 1:00p S 21 2.4 6.4 12:15a -3.3 12:00m 15.9 0.0 0.0 12.4 41.8 11:30a N 22 4.0 12.8 4:45p -6.6 3:45a 14.3 0.0 0.0 10.0 48.3 5:30p SSW 23 3.9 8.7 3:30p -0.8 7:45a 14.4 0.0 0.0 7.4 41.8 12:15a N 24 9.8 20.2 5:30p 0.2 6:45a 8.6 0.0 0.0 16.7 69.2 3:00p SSW 25 7.0 13.7 2:45p 0.2 6:15a 11.3 0.0 0.0 8.4 48.3 7:00p N 26 2.8 7.2 3:45p -0.9 8:30a 15.4 0.0 0.0 10.5 48.3 3:15a N 27 11.3 21.3 4:45p 3.1 12:45a 7.2 0.0 0.0 6.8 33.8 9:15a SSE 28 9.2 16.8 9:45a 0.4 12:00m 8.6 Tr 1.3 12.4 56.3 5:00p N 29 3.3 10.1 3:30p -4.1 6:30a 15.0 0.0 0.0 7.4 41.8 12:15a N 30 5.4 10.2 1:30p -0.4 12:00m 12.9 0.0 0.0 10.6 48.3 11:00a N ------------------------------------------------------------------------------------- 3.9 21.3 27 -7.7 10 430.7 0.8 20.8 7.9 69.2 24 N APRIL 2004 HIGHLIGHTS SLOW START TO SPRING Unlike 2003, spring has been slow to start in Southern Manitoba this year. The weather in April was dominated by generally cool and variable conditions, below normal rainfall and frequent windy days. The average temperature of 3.9C for the month at my station was near normal for April, however the figure masked the highly variable conditions during the month with frequent windy cool days. Temperatures were generally below normal from April 8th on, with some brief one day warmups near the end of the month. There were only 5 days of 15C or more this month, and only 2 days of 20C or higher. In contrast, April last year saw 14 days when the high temperature was 15 degrees or higher, including 5 days of 20 or more. The variable conditions this April were accompanied by strong winds on many days, including the windiest day on the 24th when southerly winds gusted to 69 km/h at my site, and 78 km/h at the Winnipeg airport. From April 20th on, the winds gusted to at least 40 km/h at my site every day but one, with an overall wind average of 7.9 km/h for the month, the highest average since May 2002. Rainfall was below normal with only 21 mm for the month on 7 days. Even though the month was cool, snowfall was rare with only 0.8 cm for the month. Snow cover was gone by April 5th, after a heavy snowpack through much of the winter.