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)

Variable rain accumulations were observed in all parts of the province over the past several days. Isolated rainfall and thunderstorms resulted in precipitation for the past week ranging from 2.1 mm to 42.6 mm (Table 1).

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

Region
Wettest Location last seven days
Driest Location last seven days
Central
Deerwood (21.1 mm)
Austin (5.0 mm)
Eastern
Vivian (42.6 mm)
Beausejour (13.0 mm)
Interlake
Petersfield (30.0 mm)
Moosehorn (5.6 mm)
Northwest
Keld (24.0 mm)
Alonsa (2.6 mm)
Southwest
Russell (28.8 mm)
Eden (2.1 mm)

 

Percent Normal Precipitation (PDF 2 MB)

Percent Total Precipitation (PDF 2 MB)

Climate normals for total accumulated precipitation from May 1 to June 8 range from 56.6 mm to 102.4 mm (Table 2) and are based on 30-year historical data.  Lack of precipitation this season has resulted in the East, Interlake, and large parts of the Northwest having accumulations under 60% of normal.  Accumulations in the Southwest and parts of the Central regions are up to 130% 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
76.1 → 97.6
12
Deerwood (100, 108%)
Portage (31, 38%)
Eastern
71.0 → 102.4
0
St. Pierre (72, 78%)
Elma (17, 20%)
Interlake
63.1 → 89.0
6
Petersfield (75, 104%)
Woodlands (18, 25%)
Northwest
56.6 → 86.1
0
Rorketon (60, 89%)
Birch River (23, 36%)
Southwest
62.9 → 87.3
34
Carberry EC (107, 133%)
Oakburn (37, 52%)

 

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 June 8, 2025 relative to field capacity. Soil moisture is variable across agro-Manitoba. The majority of the Eastern and Interlake regions are showing optimal to dry conditions. Much of the Northwest, Southwest and Central regions are showing optimal or wet conditions with some localized regions showing dry conditions.
  2. Soil Moisture 0 - 120 cm shows a regional representation of soil moisture conditions for the top 120 cm on June 8, 2025 relative to field capacity. The majority of the province is showing wet conditions at the 0 to 120 cm depth. Much of the Eastern region and the eastern portion of the Interlake are showing optimal or dry 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 – June 8, 2025. Much of the Southwest, Central, and East regions have accumulated more than 320 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 – June 8, 2025. Above normal temperatures early in the season have resulted in GDD Accumulations above 115% of normal for the majority 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
260 → 312
100
Winkler (420, 138%)
Pilot Mound (307, 117%)
Eastern
254 → 304
100
St. Adolphe (404, 136%)
Sprague Lake (297, 112%)
Interlake
235 → 294
100
Selkirk (377, 132%)
Fisher Branch (283, 119%)
Northwest
197 → 262
100
Ashville (234, 136%)
Ruthenia (276, 119%)
Southwest
183 → 296
100
Deloraine (353, 128%)
Wasagaming (247, 135%)

 

Corn Heat Units

Total Accumulated Corn Heat Units illustrates the total accumulated Corn Heat Units (CHU) for the growing season to date. More than 525 CHU have accumulated in the majority of the Interlake, Central, and Eastern regions since May 1.

  1. 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 115% 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
417 → 501
100
Winkler (644, 133%)
Pilot Mound (480, 114%)
Eastern
406 → 491
100
Steinbach (645, 144%)
Sprague Lake (546, 127%)
Interlake
374 → 469
100
Selkirk (611, 134%)
Fisher Branch (495, 130%)
Northwest
312 → 418
100
Keld (550, 143%)
Ruthenia (461, 125%)
Southwest
288 → 477
100
Mountainside (568, 130%)
Wasagaming (443, 154%)

 

P-Days

Percent Normal P-Days (2 MB)

Total Accumulated P-Days (2 MB)

  1. Total Accumulated P-Days (June 1 – 8) represents the total accumulated physiological days for potatoes (P-days) since June 1.  As, P-Day accumulation begins at about 50% potato emergence, accumulation begins on June 1. The majority of agro-Manitoba has accumulated more than 44 P-Days so far this season.
  2. Percent of Normal Accumulated P-Days (June 1 – 8) represents the variation of accumulated physiological days for potatoes (P-days) from the historical record over a 30-year period.  The majority of agro-Manitoba has accumulated over 90% of normal P-Days so far this season.

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.