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. 

 

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

Eght-Day Accumulated Precipitation (PDF 2 MB)

Agro-Manitoba received some much-needed precipitation over the past eight days. Isolated events brought variable rain accumulations throughout the province. Variable temperatures over the week resulted in mixed precipitation in some areas including ice pellets and snow. Precipitation for the past week ranged week from 3.2 mm to 88.5 mm (Table 1) with most regions receiving more than 10 mm. Morden (88.5 mm) received the most precipitation.

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

Region
Wettest Location last eight days
Driest Location last eight days
Central
Morden (88.5 mm)
Pilot Mound (21.1 mm)
Eastern
St. Pierre (37.1 mm)
Elma (3.2 mm)
Interlake
Petersfield (44.3 mm)
Riverton (6.2 mm)
Northwest
Rorketon (41.9 mm)
Minitonas (13.1 mm)
Southwest
Carberry EC (77.0 mm)
Wasagaming (17.7 mm)

 

Percent Normal Precipitation (PDF 2 MB)

Percent Total Precipitation (PDF 2 MB)

Climate normals for total accumulated precipitation from May 1 to May 19 range from 21.6 mm to 44.8 mm (Table 2) and are based on 30-year historical data. Accumulations over the past eight days brought seasonal accumulations closer to normal in most areas. The East and eastern portions of the Interlake have accumulations under 70% of normal.  Accumulations in the Southwest and parts of the Central regions are more than 150% of the 30-year average 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
32.4 → 44.8
71
Morden (89.1, 217%)
Pilot Mound (21.5, 60%)
Eastern
28.7 → 44.3
5
Gardenton (38.9, 98%)
Elma (3.2, 9%)
Interlake
24.8 → 36.2
17
Petersfield (44.8, 151%)
Woodlands (7.8, 25%)
Northwest
21.9 → 31.8
42
Rorketon (42.2, 153%)
Minitonas (13.4, 56%)
Southwest
21.6 → 36.3
91
Carberry EC (87.5, 261%)
Oakburn (18.9, 73%)

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 19, 2025 relative to field capacity. Soil moisture is variable across agro-Manitoba. The majority of the Northwest, Southwest, Central and Interlake regions are showing wet conditions. Most of the East and eastern portion of the Interlake is showing optimal 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 19, 2025 relative to field capacity. The majority of the province is showing wet to very wet conditions at the 0 to 120 cm depth. A portion of the Eastern region is showing optimal conditions.

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 19, 2025. Much of the Southwest and Central and East regions have accumulated more than 140 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 19, 2025. Recent above normal temperatures have resulted in GDD Accumulations above 130% 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
87 → 109
100
Emerson (195, 179%)
Lakeland (127, 139%)
Eastern
85 → 106
100
Gardenton (190, 190%)
Sprague Lake (150, 169%)
Interlake
75 → 99
100
Selkirk (164, 171%)
Fisher Branch (114, 147%)
Northwest
58 → 90
100
Ashville (128, 156%)
The Pas (83, 143%)
Southwest
58 → 106
100
Deloraine (162, 166%)
Wasagaming (105, 180%)
 

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 225 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 130% 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
136 → 173
100
Emerson (288, 167%)
Lakeland (208, 147%)
Eastern
133 → 168
100
Gardenton (288, 181%)
Prawda (258, 183%)
Interlake
117 → 155
100
Selkirk (260, 172%)
Fisher Branch (202, 167%)
Northwest
90 → 141
100
Ashville (216, 169%)
The Pas (148, 164%)
Southwest
90 → 169
100
Deloraine (251, 163%)
Shoal Lake (185, 149%)

 Other links of interest to access current weather conditions recorded at each station:
 
 

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.