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.

  • Seven-Day Accumulated Precipitation Map (PDF 525 KB) (June 29 - July 5, 2020) shows a wide variation in precipitation across agro-Manitoba ranging from 8 mm to 116 mm in the past seven days at our weather station locations. Areas that received the most precipitation were in the Southwest around Rivers and Newdale (both with 116 mm) and in the Northwest around San Clara (89 mm).  Many areas of the southwest, central, and southeast regions received more than 30 mm in the past week.  Much of the Interlake and parts of the Northwest near Dauphin received less than 30 mm. Fork River in the Northwest region received the least precipitation at 8 mm.
  • Total Accumulated Precipitation Map (PDF 522 KB) (May 1 – July 5, 2020) shows the total precipitation amount since the beginning of the growing season. Gardenton (279 mm) has the highest total accumulated precipitation since May 1, 2020, followed by Sprague (268 mm).  Areas of the Southwest near Brandon and Newdale accumulated more than 190 mm. Much of Central, Northwest, and the Interlake has accumulated less than 130 mm of precipitation.
  • Percent of Normal Accumulated Precipitation (PDF 643 KB) (May 1 - July 5, 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 July 5. Ninette (37%) and Lake Francis (42%) have accumulated the lowest percent of normal precipitation. Much of eastern agro-Manitoba and a large portion of the Southwest accumulated more than 90% of normal precipitation.  Forrest (194%), Rivers (192%) are the top two locations with the highest percent of normal precipitation this growing season.
  • Soil Moisture 0 - 30 cm (PDF 520 KB) shows a regional representation of soil moisture conditions for the top 30 cm on July 5, 2020.  No stations are currently indicating very dry top soil moisture conditions. Some areas in the Southwest (Minto and Boissevain), Interlake (Narcisse and Inwood), and the Southeast near Marchand are showing dry conditions.  Southwest areas around Minnedosa and Oakburn are showing wet to very wet conditions.
  • Soil Moisture 0 - 120 cm (PDF 521 KB) shows a regional representation of soil moisture conditions for the 0-120 cm depths on July 5, 2020. The majority of the southern region of agro-Manitoba is experiencing optimal to wet moisture conditions at 0 - 120 cm depth. Areas near Birch River, Menisino, and Pierson are showing dry to very dry conditions.
  • Total Accumulation of Growing Degree Days (PDF 470 KB) shows the accumulated growing degree days (GDD) for the period of May 1 – July 5, 2020.  The maximum total GDD accumulation was observed at Winkler (747), and Morden (727).  The majority of the Northwest has accumulated less than 580 GDD.
  • Percent Normal Accumulated Growing Degree Days (PDF 482 KB) (May 1 - July 5, 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 and the Northwest have accumulated less than 100% of normal accumulated GDD. Oakburn (93%) and The Pas (94%), had the lowest percent normal accumulated GDD. Wawanesa has the highest percent normal accumulated GDD with 112%.
  • Total Accumulated Corn Heat Units (PDF 466 KB) (May 1 – July 5, 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 786.  The majority of southern agro-Manitoba has accumulated more than 1,000 CHU. Winkler has accumulated the most CHU this season with 1,187.
  • Percent Normal Accumulated Corn Heat Units (PDF 474 KB) (May 1 – July 5, 2020) represents the variation of accumulated CHU from the historical record over a 30-year period.  Much of the Northwest has accumulated less than 102% of the historical accumulated CHU. The Pas has accumulated the lowest percent normal accumulated CHU at 94%.  Much of southern agro-Manitoba and the Interlake has accumulated more than 102% of normal CHU. Inwood has accumulated the highest percent normal accumulated CHU at 111%.
  • Total Accumulated P-Days (PDF 469 KB) (June 01 - July 5, 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 240 P-days since June 1. Much of the Northwest have accumulated less than 240 P-days with The Pas accumulating the lowest P-days with 215.  St. Claude (268 P-days) has the highest P-Day accumulation.
  • Percent of Normal Accumulated P-Days (PDF 472 KB) (June 01 - July 5, 2020) represents the variation of accumulated physiological days for potatoes (P-days) from the historical record over a 30-year period.  Areas of the Southwest and Central regions have accumulated more than 104% of the normal accumulation of P-Days. St. Lazare (111%) and Shoal Lake (111%) have the highest percent normal accumulation of P-days. Reedy Creek (92%) and The Pas (95%) 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:
 
 

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.