Agriculture

Weather Conditions and Reports

Manitoba's ag weather program measures and records data year round from over 100 weather stations across agro-Manitoba. The stations monitor air temperature, relative humidity, barometric pressure, precipitation, wind speed and direction, solar radiation, soil temperature, and soil moisture. The latest weather conditions from each station are made available every 15 minutes throughout the growing season and every hour during the winter months. 

Special Maps

Weekly Crop Weather Report and Maps

The latest weather report and maps are made available every Monday year round. Subscribe to receive a weekly distribution of seasonal reports and maps by email.

 Higher resolution maps are available on request.

  • Eight-Day Accumulated Precipitation Map (PDF 520 KB) (July 27 - August 3, 2020) shows a variation in precipitation across agro-Manitoba ranging from 0 mm to 33 mm in the past eight days at our weather station locations. Areas that received the most precipitation were in the Northwest near The Pas (33 mm), Fork River (28 mm), and Swan River (27 mm). Much of the East, Interlake, and parts of the Central and Southwest regions received less than 5 mm.
  • Total Accumulated Precipitation Map (PDF 522 KB) (May 1 – August 3, 2020) shows the total precipitation amount since the beginning of the growing season. Gardenton (348 mm) has the highest total accumulated precipitation since May 1, 2020, followed by Sprague (346 mm).  Areas around Riding Mountain Park and south to the TransCanada highway have accumulated more than 210 mm.  The lowest total accumulated precipitation is at Bagot (91 mm). Much of the Interlake has accumulated less than 180 mm of precipitation.
  • Percent of Normal Accumulated Precipitation (PDF 622 KB) (May 1 - August 3, 2020) is based on historical record over a 30-year period. Much of the Central and Interlake regions have received less than 100% of the normal accumulated precipitation for the period between May 1 and August 03. Lake Francis (43%) and Bagot (44%) have accumulated the lowest percent of normal precipitation. Much of eastern agro-Manitoba and a large portion of the Southwest accumulated more than 100% of normal precipitation.  Rivers (163%) and Newdale (157%) are the top two locations with the highest percent of normal precipitation this growing season.
  • Soil Moisture 0 - 30 cm (PDF 519 KB)  shows a regional representation of soil moisture conditions for the top 30 cm on August 03, 2020.  Inwood, Moosehorn, and Birch River are currently indicating very dry top soil moisture conditions. Some areas in the Interlake (Narcisse and Arborg), and the Southeast near Marchand are showing dry conditions.  Northwest areas around Oakburn are showing wet to very wet conditions.
  • Soil Moisture 0 - 120 cm (PDF 519 KB) shows a regional representation of soil moisture conditions for the 0-120 cm depths on August 03, 2020. Areas near Oakburn, Glenboro, and Baldur are showing wet to very wet conditions at 0 - 120 cm depth.  Wet to very wet conditions are also present in the eastern region near Gardenton and Elma, and in the Interlake near Fisherton. 
  • Total Accumulation of Growing Degree Days (PDF 471 KB)   shows the accumulated growing degree days (GDD) for the period of May 01 – August 03, 2020.  The maximum total GDD accumulation was observed at Winkler (1,200), and Morden (1,183).  The majority of the Northwest has accumulated less than 1,000 GDD.
  • Percent Normal Accumulated Growing Degree Days (PDF 491 KB) (May 1 - August 3, 2020 KB)    represents the variation of accumulated Growing Degree Days (GDD) from the historical record over a 30-year period.  The majority of agro-Manitoba has accumulated more than 100% of normal GDD. A small area of central, Southwest, and the Northwest have accumulated less than 100% of normal accumulated GDD. Manitou (94%) and Oakburn (95%), had the lowest percent normal accumulated GDD. Wawanesa has the highest percent normal accumulated GDD with 111%.
  • Total Accumulated Corn Heat Units (PDF 471 KB) (May 1 – August 3, 2020) illustrates the total accumulated corn heat units (CHU) for the growing season to date. The Pas has accumulated the lowest total accumulated CHU with 1,478.  The majority of southern agro-Manitoba has accumulated more than 1,700 CHU. Winkler has accumulated the most CHU this season with 1,899.
  • Percent Normal Accumulated Corn Heat Units (PDF 485 KB) (May 1 – August 3, 2020) represents the variation of accumulated CHU from the historical record over a 30-year period.  Much of the Northwest has accumulated less than 104% of the historical accumulated CHU. Manitou has accumulated the lowest percent normal accumulated CHU at 96%.  Much of southern agro-Manitoba and the Interlake has accumulated more than 104% of normal CHU. Wawanesa has accumulated the highest percent normal accumulated CHU at 111%.
  • Total Accumulated P-Days (PDF 481 KB) (June 01 - July 26, 2020), 2020)  represents the total accumulated physiological days for potatoes (P-days) since June 1, 2020.  P-days accumulation has a different start date (June 1) because accumulation commences at about 50% potato emergence. Other heat accumulation starts from May 1. The majority of southern agro-Manitoba has accumulated more than 485 P-days since June 1. Much of the Northwest and the parts of the Interlake have accumulated less than 485 P-days with Sprague Lake (459) and Narcisse (459) accumulating the lowest P-days.  St. Claude (520) has the highest P-Day accumulation.
  • Percent of Normal Accumulated P-Days (PDF 482 KB) (June 01 - August 3, 2020) represents the variation of accumulated physiological days for potatoes (P-days) from the historical record over a 30-year period.  Much of the Southwest region has accumulated more than 106% of the normal accumulation of P-Days. Shoal Lake (111%), Forrest (111%), and Russell (111%) have the highest percent normal accumulation of P-days. Reedy Creek (96%) and Selkirk (98%) have the lowest percent normal accumulation of P-days. 

The information on the maps provides regional representation. Field-specific conditions may be different from the information provided on the maps.

Other links of interest to access current weather conditions recorded at each station:
-          Current Weather Condition by Station.
-          Interactive Map of all weather stations with latest hourly weather information.
 
 

Seasonal Maps

         

Seasonal Reports

Visit the Seasonal Reports page for information on progress in seeding and crop establishment, crop development, pest activity including weeds, insects and disease, harvest progress, crop yields and grades, fall field work progress, and status of winter cereal crop seeding and establishment. Information on haying progress and estimated yields, as well as pasture conditions is included.5