MONTHLY CLIMATOLOGICAL SUMMARY FOR JULY 2004 WINNIPEG - CHARLESWOOD HEAT COOL MEAN DEG DEG WIND SPEED DOM MEAN MEAN DAY TEMP HIGH TIME LOW TIME DAYS DAYS RAIN AVG HI TIME DIR BAROM HUM --------------------------------------------------------------------------------------- 1 18.3 26.0 3:30pm 10.1 4:12am 3 3 0.0 2 18 1:25am N1018.1 60 2 18.2 21.3 5:53pm 15.8 5:22am 1 1 7.4 1 21 1:27pm S1010.1 81 3 17.3 21.9 2:07pm 12.2 11:58pm 2 1 0.0 4 34 10:04pm N1005.5 88 4 12.5 15.9 6:57pm 9.7 5:00am 6 0 0.3 9 40 2:14am N1013.1 80 5 14.7 19.9 5:07pm 9.5 1:27am 4 0 0.0 3 21 12:23pm NE1018.0 66 6 17.2 23.9 1:45pm 9.9 5:01am 3 2 0.0 2 21 4:50pm N1015.2 60 7 19.1 26.8 2:39pm 13.1 6:13am 2 3 0.0 1 16 10:44am N1011.5 62 8 16.0 21.1 11:21am 10.1 5:27am 3 1 9.9 1 19 6:42pm SW1011.4 74 9 18.9 26.8 4:01pm 12.8 5:39am 2 3 8.4 2 21 3:04am SW1010.2 76 10 22.5 30.2 2:38pm 16.8 5:14am 0 5 7.6 1 19 5:49am SW1010.5 70 11 22.5 30.4 3:58pm 13.6 5:59am 1 5 0.0 1 16 3:10pm N1011.0 65 12 21.3 27.2 3:50pm 17.0 5:23am 0 3 7.1 2 21 6:34pm SW1007.8 74 13 20.5 26.0 4:47pm 14.2 6:56am 1 3 0.0 4 29 4:27am N1011.0 73 14 22.0 29.6 3:10pm 13.9 5:45am 1 5 0.0 1 18 11:30am SW1013.4 72 15 21.9 27.2 4:41pm 17.4 5:42am 0 4 0.0 3 27 10:30am N1010.7 75 16 19.4 23.9 1:58pm 12.9 11:55pm 1 2 0.0 3 23 1:13pm N1016.2 70 17 18.9 27.4 3:43pm 10.1 5:56am 3 3 0.0 1 13 2:54pm SW1015.7 68 18 23.0 31.7 3:29pm 15.5 4:48am 1 6 0.5 2 26 1:21pm SW1006.3 73 19 24.9 31.2 3:17pm 19.3 6:06am 0 7 0.0 3 21 11:04am N1006.2 68 20 23.9 30.4 3:48pm 17.3 4:33am 0 6 0.0 1 18 5:36pm SW1004.4 76 21 19.7 23.7 12:00am 12.5 11:30pm 1 2 0.8 4 39 5:03pm N1001.9 77 22 15.3 20.8 4:32pm 11.4 11:59pm 3 0 0.3 2 32 6:15pm N1016.8 70 23 14.2 22.5 4:03pm 4.7 6:00am 5 1 0.0 1 23 5:06pm N1024.0 58 24 18.7 28.3 4:15pm 9.4 5:51am 3 3 0.0 1 21 1:46pm SW1022.1 68 25 20.8 29.1 3:42pm 12.0 5:51am 1 4 0.0 2 32 4:17pm SW1019.4 65 26 20.6 28.0 3:58pm 12.9 6:32am 1 4 0.0 5 32 6:26pm SSW1013.6 65 27 20.5 25.5 5:48pm 16.6 6:20am 0 3 0.8 4 32 1:15pm SSW1006.1 75 28 18.8 24.1 1:26pm 13.6 6:29am 1 2 0.3 1 23 11:06am SW1005.0 75 29 14.3 17.9 2:20pm 12.5 6:07am 4 0 2.5 2 26 2:58am N1008.1 79 30 14.8 19.6 4:28pm 11.6 6:11am 4 0 0.0 0 11 11:50am SW1008.9 74 31 16.6 25.1 3:11pm 8.3 6:00am 3 2 8.1 4 47 6:11pm SSW1006.7 74 --------------------------------------------------------------------------------------- TOT 19.0 31.7 7/18/04 4.7 7/23/04 58 83 53.8 2 47 7/31/04 N1011.6 71 JULY 2004 HIGHLIGHTS Variable but dry.. July 2004 was a changeable month in Winnipeg with generally cool weather offset by occasional warm spells. Overall the month averaged a little cooler than normal thanks to some fairly cool stretches of weather at the beginning and end of the month. This marks the fourth consecutive month of below normal temperatures and makes the May-July period the coolest on record in Winnipeg since records began in 1872. (3 month mean of 13.1C) The hottest temperature of the month at my site was only 31.7C on the 18th, while the coolest temperature was a chilly 4.7C on July 23rd (record low of 3.0C at Winnipeg airport) Overall the month was fairy dry with a notable lack of thunderstorm activity thanks in large part due to the general absence of heat and humidity during the month. There was about 54 mm of rain at my site, compared to the normal of 70 mm during July. The month ended with a strong thunderstorm on the 31st that brought high winds and heavy rain to Winnipeg in the early evening. Overall a fairly quiet month that was a little on the cool side but generally dry.