Dry conditions are creating mounting concern for Manitoba producers as rainfall totals in many areas fall well below the seasonal norm. According to provincial livestock and forage specialist Shawn Cabak, climate data shows a sharp contrast from last year, with major implications for forage yields and pasture health.
Cabak says normal precipitation totals between May 1 and June 15 typically range from 73 to 137 millimetres across the province. However, this season has seen significant deficits.
Accumulated precipitation is below 60 per cent of normal in the East Interlake and large sections of the Northwest. In some spots, levels are even below 50 per cent. The southwest and parts of the central region are faring slightly better, closer to average. Verdant and Carberry are the only areas above the long-term normal, with 101 and 106 per cent, respectively.
Last year was the opposite story, with the entire province receiving above-average rainfall. Portage la Prairie alone recorded 183 per cent of normal.
Precipitation in Portage this year is among the lowest in the central region, coming in at just 31 millimetres—or 30 per cent of the average. In the eastern region, Alonsa received 20 millimetres, and the Interlake’s Woodlands area is driest at just 18 millimetres.
Heat adds pressure to crops and pastures
The dry weather is compounded by unseasonably high temperatures, accelerating crop development and impacting livestock conditions.
Cabak says Portage is already at 125 per cent of its normal corn heat unit accumulation.
“This is from May 1 to June 15,” notes Cabak. “Basically, the growing season to date.”
Winter also brought below-average snowfall, which reduced spring runoff and contributed to low water levels in dugouts—many of which are now sitting at just 70 per cent capacity.
First-cut hay is already underway for dairy operations, while some beef producers have also begun. Yields so far range from normal to below average, with the driest areas seeing the poorest output. Although most cattle are now on pasture, Cabak stresses that continued moisture is critical for summer regrowth.
“June is our peak forage production,” says Cabak. “Moisture will be needed for summer regrowth.”