MONTHLY CLIMATOLOGICAL SUMMARY for APR. 2003 NAME: Charleswood CITY: Winnipeg STATE: MB, CANADA ELEV: 235 m LAT: 49° 51' 00" N LONG: 97° 16' 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 -2.3 0.7 12:15a -5.3 10:00p 20.6 0.0 0.0 12.7 41.8 7:00p N 0 2 -3.3 0.4 2:15p -7.1 7:15a 21.6 0.0 0.0 12.2 38.6 8:00a NE 0 3 -5.1 -3.0 3:15p -7.1 12:00m 23.4 10.2 0.0 9.3 40.2 6:00a NE 0 4 -6.3 -4.2 4:30p -8.5 6:00a 24.6 12.2 0.0 5.8 27.4 3:15p N 20 5 -5.4 -0.3 3:30p -10.6 1:45a 23.7 0.0 0.0 2.1 17.7 1:00p SSW 12 6 -0.8 5.7 5:45p -7.3 1:45a 19.1 0.0 0.0 3.2 30.6 2:15p SSE 1 7 2.6 7.8 4:45p -2.5 7:00a 15.7 0.0 0.0 9.5 38.6 3:00p SSW T 8 6.7 14.1 3:00p -0.6 7:00a 11.6 0.0 0.0 12.4 48.3 4:45p SSW 0 9 12.9 24.6 4:45p 1.1 6:15a 5.4 0.0 0.0 11.7 48.3 4:15p SSW 0 10 11.0 17.5 3:30p 4.5 11:00p 7.3 0.0 0.0 7.1 38.6 10:15a N 0 11 6.8 15.0 4:00p -1.4 7:00a 11.5 0.0 0.0 3.4 25.7 3:45p N 0 12 10.7 19.9 4:00p 1.5 7:15a 7.6 0.0 0.0 6.6 38.6 3:30p SSE 0 13 15.7 25.2 5:45p 6.2 7:15a 2.6 0.0 0.0 7.1 30.6 11:15a SSE 0 14 7.2 11.6 5:30p 2.7 4:45a 11.1 0.0 0.0 12.4 38.6 10:00a N 0 15 4.6 10.4 3:00p -1.2 6:45a 13.7 0.0 0.0 12.9 48.3 5:00p N 0 16 3.9 9.2 4:00p -1.4 6:45a 14.4 0.0 0.0 8.5 40.2 5:00a NE 0 17 0.1 2.9 12:15a -2.8 9:15a 18.2 7.6 0.0 8.7 29.0 12:45a S 6 18 5.8 14.0 6:45p -2.4 2:30a 12.5 0.0 0.0 7.1 40.2 12:45p S 2 19 10.8 18.9 4:00p 2.6 7:00a 7.6 0.0 0.0 6.3 40.2 3:15p N 0 20 11.4 18.4 4:00p 4.4 3:00a 6.9 0.0 0.0 13.2 49.9 1:00p N 0 21 9.2 18.1 3:45p 0.4 6:45a 9.1 0.0 0.0 5.1 32.2 4:15p N 0 22 10.7 20.2 4:15p 1.3 4:30a 7.6 0.0 0.0 4.7 32.2 3:30p S 0 23 14.4 23.9 5:15p 4.9 6:45a 3.9 0.0 0.0 7.2 40.2 2:45p S 0 24 14.7 19.1 2:30p 10.3 5:45a 3.6 0.0 0.0 5.0 27.4 6:30p NE 0 25 9.9 16.4 3:30p 3.4 7:15a 8.4 0.0 0.0 4.0 20.9 1:00a NE 0 26 12.1 20.1 4:15p 4.0 6:45a 6.2 0.0 0.0 4.3 29.0 8:30p ENE 0 27 7.2 13.5 12:15a 0.9 11:45p 11.1 0.2 23.7 8.7 38.6 3:30p N 0 28 4.7 10.6 2:15p -1.3 12:00m 13.6 0.0 0.0 6.3 38.6 3:00p N 0 29 2.6 11.2 4:15p -6.1 6:30a 15.7 0.0 0.0 1.4 17.7 1:00p N 0 30 9.0 19.3 3:15p -1.4 6:45a 9.3 0.0 0.0 6.6 38.6 8:00p N 0 ------------------------------------------------------------------------------------- 6.0 25.2 13 -10.6 5 367.7 30.2 23.7 7.5 49.9 20 N APRIL 2003 HIGHLIGHTS – MILD AND DRY Except for those looking for rain, April was an ideal spring month over Winnipeg featuring plenty of sunshine and mild temperatures. Overall the month averaged 2 degrees above normal at my site, continuing the above normal trend established in the second half of March. The month started with a cool spell, just in time for March break, with temperatures generally below freezing over the first few days and a 22 cm snowfall (but only 6 mm water equivalent) on the 3rd to 4th. The weather then turned generally sunny warm and dry for the rest of the month, except for a brief cool snap around mid month that was accompanied by a 7.6 cm snowfall on the 17th. Temperatures soared to 25.2C on the 13th with a record high of 26C at Winnipeg airport, the warmest temperature of the month. The month featured 18 days of mainly sunny skies, with only 5 days with no sun. Relative humidity was frequently low during the month with many days featuring afternoon humidity in the 20 to 25% range. The lowest humidity was a dry 14% on the 16th. With all the dry weather and sunshine, precipitation was at a premium with only 3 precipitation events in Winnipeg the entire month.. but all of them significant. Other than the two snowfalls, there was one other precipitation event.. a much needed rainfall on the 27th that brought 24 mm of rain at my location, along with the season’s first thunderstorms that produced pea size hail over southwest Winnipeg. Overall, my site recorded 30 cm of snow and 24 mm of rain for the month but only 4 days of measurable precipitation.. illustrating the “all or nothing” type of month that characterized April 2003.