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. 

 

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 upon request.

Precipitation

Seven-Day Accumulated Precipitation (PDF 2 MB)

Agro-Manitoba received variable amounts of precipitation over the past seven days with isolated events reaching the Southwest region in the Carberry and Boissevain areas. Precipitation for the past week ranged week from 0 mm to 12.5 mm (Table 1) with most regions receiving less than 3 mm. Boissevain (12.5 mm) received the most precipitation.
 

Table 1. Range of measurements of four-day accumulated precipitation in Manitoba's Agricultural Regions.

Region
Wettest Location last four days
Driest Location last four days
Central
 Cypress River (10.7 mm)
  Several (0 mm)
Eastern
 Kleefeld (1.5 mm)
  Several (0 mm)
Interlake
 Riverton (3.2 mm)
  Taylor’s Point (0 mm)
Northwest
 San Clara (2.7 mm)
  Several (0 mm)
Southwest
 Boissevain (12.5 mm)
  Several (0 mm)

 

Percent Normal Precipitation (PDF 2 MB)

Percent Total Precipitation (PDF 2 MB)

Climate normals for total accumulated precipitation from May 1 to May 11 range from 13.8 mm to 24.3 mm (Table 2) and are based on 30-year historical data. All of agro-Manitoba has accumulated less than 20 mm of precipitation since May 1. Accumulations in most areas are far below normal (less than 50%) precipitation since May 1.

Table 2. Summary of measurement of total accumulated precipitation in Manitoba's Agricultural Regions. 

Region
Range of Normals (mm)
Percent of Stations Above Normal (%)
Wettest Location this Season (mm, % norm.)
Driest Location this Season (mm, % norm.)
Central
16.8 → 24.3
0
Cypress River (10.7, 50%)
Several (0, 0%)
Eastern
14.1 → 22.8
0
Gardenton (5.0, 25%)
Several (0, 0%)
Interlake
14.3 → 20.1
0
Riverton (3.2, 20%)
Taylor’s Point (0, 0%)
Northwest
14.1 → 19.4
0
Keld (3.4, 20%)
Several (0, 0%)
Southwest
13.8 → 22.6
0
Virden (12.7, 67%)
Oakburn (0.1, 1%)

 

Soil Moisture 

Soil Moisture 30cm (2 MB)

Soil Moisture 120cm (2 MB)

 

1)   Soil Moisture 0 - 30 cm shows a regional representation of soil moisture conditions for the top 30 cm on May 11, 2025 relative to field capacity. Soil moisture is variable across agro-Manitoba with the majority showing optimal to wet soil moisture conditions at the surface depths.
 
2)   Soil Moisture 0 - 120 cm shows a regional representation of soil moisture conditions for the top 120 cm on May 11, 2025 relative to field capacity. The majority of the province is showing optimal to wet conditions at the 0 to 120 cm depth.
 

Growing Degree Days

Total Accumulation of Growing Degree Days (2 MB)

Percent Normal Accumulated Growing Degree Days (2 MB)

1)  Total Accumulation of Growing Degree Days shows the accumulated growing degree days (GDD) for the period of May 1 – May 11, 2025. Much of the Southwest and Central regions have accumulated more than 90 GDD since May 1.
 
2)  Percent Normal Accumulated Growing Degree Days represents the variation of accumulated Growing Degree Days (GDD) from the historical record over a 30-year period from May 1 – May 11, 2025. Recent above normal temperatures have resulted in GDD Accumulations above 150% of normal for all of agro-Manitoba.
 
Table 3. Summary of total accumulated growing degree days (GDD) and percent deviation from normal in Manitoba’s Agricultural Regions
Region
Range of Normals (GDD)
Percent of Stations Above Normal (%)
Highest GDD Accumulation This Season (GDD, % norm.)
Lowest GDD Accumulation This Season (GDD, % norm.)
Central
44 → 56
100
Winkler (117, 218%)
Lakeland (81, 178%)
Eastern
43 → 55
100
St. Adolphe (107, 203%)
Sprague Lake (71, 156%)
Interlake
37 → 51
100
Selkirk (94, 188%)
Fisher Branch (62, 158%)
Northwest
27 → 45
100
Ashville (95, 235%)
The Pas (58, 214%)
Southwest
27 → 53
100
Deloraine (116, 241%)
Wasagaming (73, 267%)

 

Corn Heat Units

1)  Total Accumulated Corn Heat Units illustrates the total accumulated Corn Heat Units (CHU) for the growing season to date. More than 160 CHU have accumulated in the majority of the Southwest, Central, and Eastern regions since May 1.
 
2)  Percent Normal Accumulated Corn Heat Units represents the variation of accumulated Corn Heat Units (CHU) from the historical record over a 30-year period. CHU accumulations are well above normal so far this season. All of agro-Manitoba has accumulated more than 180% of CHU when compared to normal.
 

 

Table 4. Summary of total accumulated corn heat units (CHU) and percent deviation from normal in Manitoba’s Agricultural Regions
Region
Range of Normals (CHU)
Number of Stations Above Normal
Highest CHU Accumulation This Season (CHU, % norm.)
Lowest CHU Accumulation This Season (CHU, % norm.)
Central
69 → 88
100
Winkler (182, 214%)
Lakeland (140, 197%)
Eastern
68 → 87
100
St. Adolphe (172, 207%)
Sprague Lake (140, 194%)
Interlake
57 → 80
100
Selkirk (157, 200%)
Fisher Branch (121, 200%)
Northwest
42 → 70
100
Keld (167, 271%)
The Pas (107, 255%)
Southwest
41 → 84
100
Deloraine (187, 247%)
Shoal Lake (137, 231%)

 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

First Fall Frost

         

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.