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

Agro-Manitoba Weather Extremes

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 2 MB)  (September 26 - October 02, 2022)  
    Little to no precipitation was measured at Manitoba Ag Weather Program stations, and ranged from 0.0 to 0.8 mm (Tab. 1).
    Table 1. Range of measurements of seven-day accumulated precipitation in Manitoba’s Agricultural Regions.
    Region
    Wettest Location last Week
    Driest Location last Week
    Central
    several (0.0 mm)
    Lakeland (0.8 mm)
    Eastern
    several (0.0 mm)
    Kleefeld (0.4 mm)
    Interlake
    several (0.0 mm)
    Taylor’s Point (0.4 mm)
    Northwest
    several (0.0 mm)
    Fork River (0.7 mm)
    Southwest
    several (0.0 mm)
    Shoal Lake (0.6 mm)
  • Total Accumulated Precipitation (PDF 2 MB) (May 01- October 02, 2022) 
  • Percent of Normal Accumulated Precipitation (PDF 2 MB) (May 01 - October 02, 2022)  
    Climate normals for total accumulated precipitation for the 39th week of the year range from 281.3 to 400.7 mm (Tab. 2), and are based in 30-year historical data.  A lack of rain this past week at monitored locations across the province did little to change total accumulations of precipitation so far this season.  Several locations in the Northwest region lag behind normals for this time of year, but only marginally.  Most locations in the Central, Eastern, Interlake, and Southwest regions meet or surpass normals.
    Table 2. Summary of measurement of total accumulated precipitation in Manitoba’s Agricultural Regions
    Region
    Range of Normals (mm)
    Stations Above Normal (%)
    Wettest Location this Season (mm, % norm.)
    Driest Location this Season (mm, % norm.)
    Central
    313.9 → 351.8
    79
    Bagot (487.2, 148)
    Deerwood (291.1, 84)
    Eastern
    343.7 → 400.7
    95
    Rosa (584.8, 164)
    Sprague Lake (374.2, 93)
    Interlake
    322.6 → 358.7
    93
    Riverton (530.7, 163)
    Clarkleigh (325.1, 97)
    Northwest
    281.3 → 359.7
    58
    McCreary (531.0, 148)
    San Carla (242.5, 70)
    Southwest
    283.4 → 343.2
    88
    Forrest (456.4, 144)
    Pierson (216.5, 74)
  • Top 0-30cm Soil Moisture (PDF 646 KB) (October 02, 2022) 
    Without recharge from precipitation, soil moisture in the top 0-30 cm layer has decreased at many locations throughout the province.  Though many locations remain optimal, there are an increasing number of dry and very dry locations in the Central, Northwest, and Southwest regions.  Wet locations around Lake Manitoba and the Eastern region remain, but are fewer than the previous week.
  • Top 0-120cm Soil Moisture (PDF 634 KB) (October 02, 2022)  
    Similar to the top 0-30 cm layer, soil moisture in the top 0-120 cm layer continues to decrease without recharge from precipitation.  Many locations are optimal, however an increasing number are exhibiting dry or very dry conditions.  Wet locations persist in the Eastern, Central, and Southwest region, though to a lesser extent than the previous week.
  • Total Accumulated Growing Degree Days (PDF 2 MB) (May 01- October 02, 2022) 
  • Percent Normal Accumulated Growing Degree Days (PDF 2 MB) (May 01- October 02, 2022)       
    Normals for total accumulated growing degree days for the 39th week of the year range from 1341 to 1784 (Tab. 3), and are based in 30-year historical data.  Most locations in the province meet or surpass normals for this time of year.
    Table 3. Summary of calculated total growing degree days in Manitoba’s Agricultural Regions
    Region
    Range of Normals (GDD)
    Stations Above Normal (%)
    Most GDDs this Season (GDD, % norm.)
    Fewest GDDs this Season (GDD, % norm.)
    Central
    1564 → 1784
    90
    Winkler (1888, 106)
    Windygates (1597, 90)
    Eastern
    1516 → 1776
    75
    St Adolphe (1797, 108)
    Sprague Lake (1471, 95)
    Interlake
    1468 → 1700
    87
    Arborg (1760, 120)
    Fisherton (1589, 106)
    Northwest
    1341 → 1613
    84
    McCreary (1694, 107)
    San Carla (1432, 99)
    Southwest
    1371 → 1683
    93
    Melita (1801, 107)
    Wasagaming (1365, 97)
  • Total Accumulated Corn Heat Units (PDF 2 MB) (May 01- October 02, 2022) 
  • Percent Normal Accumulated Corn Heat Units (PDF 2 MB) (May 01- October 02, 2022) 
    Normals for total accumulated corn heat units for the 39th week of the year range from 2219 to 2853 (Tab. 4), and are based in 30-year historical data.  Most locations in the province meet or surpass normals for this time of year.
    Table 4. Summary of calculated total corn heat units in Manitoba’s Agricultural Regions
    Region
    Range of Normals (CHU)
    Stations Above Normal (%)
    Most CHUs this Season (CHU, % norm.)
    Fewest CHUs this Season (CHU, % norm.)
    Central
    2549 → 2853
    90
    Morden (3064, 107)
    Windygates(2662, 93)
    Eastern
    2516 → 2843
    90
    Steinbach (2959, 111)
    Sprague Lake (2521, 99)
    Interlake
    2439 → 2755
    100
    Selkirk (2852, 103)
    Fisherton (2646, 107)
    Northwest
    2219 → 2676
    95
    McCreary (2792, 108)
    San Carla (2410, 101)
    Southwest
    2286 → 2691
    95
    Melita (2906, 109)
    Wasagaming (2323, 100)
  • Total Accumulated P-Days (PDF 2 MB) (June 06 – October 02, 2022) 
  • Percent of Normal Accumulated P-Days (PDF 2 MB) (June 06 – October 02, 2022) 
    Normals for total accumulated P-days for the 39th week of the year range from 717 to 864 (Tab. 5) are based in 30-year historical data and are measured beginning June 6th.  All locations in the province meet or surpass normals for this time of year.
    Table 5. Summary of calculated P-days in Manitoba’s Agricultural Regions
    Region
    Range of Normals (P-Day)
    Stations Above Normal (%)
    Most P-Days this Season (P-day, % norm.)
    Fewest P-Days this Season (P-day, % norm.)
    Central
    773 → 844
    100
    St Claude (928, 116)
    Windygates (859, 102)
    Eastern
    758 → 832
    100
    Steinbach (911, 114)
    Sprague Lake (790, 102)
    Interlake
    747 → 864
    100
    Tayor’s Point (919, 106)
    Arborg (838, 110)
    Northwest
    737 → 864
    100
    McCreary (902, 114)
    San Carla (812, 110)
    Southwest
    717 → 807
    100
    Eden (903, 112)
    Wasagaming (806, 110)
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

First Fall Frost

Monthly Precipitation 2021

         

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.