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)

Isolated rainfall and thunderstorms resulted in varying amounts of precipitation over the past week with accumulations ranging from 0.9 mm to 65.1 mm (Table 1). Most regions received more than 6 mm of rain.  Sprague Lake received the most rain this week with 65.1 mm.

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
Pilot Mound (33.3 mm)
Gladstone, Portage (3.5 mm)
Eastern
Sprague Lake (65.1 mm)
Rosa (4.2 mm)
Interlake
Moosehorn (20.8 mm)
Lake Francis (0.9 mm)
Northwest
Roblin (33.3 mm)
Birch River (2.7 mm)
Southwest
Wasagaming (46.3 mm)
Miniota (4.6 mm)

 

Percent Normal Precipitation (PDF 2 MB)

Percent Total Precipitation (PDF 2 MB)

Climate normals for total accumulated precipitation from May 1 to June 22 range from 93.4 mm to 157.8 mm (Table 2) and are based on 30-year historical data. Even with recent rainfall, the East, Interlake, and large parts of the Northwest having accumulations under 60% of normal.  While accumulations in the Southwest and parts of the Central regions are closer to normal, only a few locations have accumulated more than 90% 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
112.8 → 142.0
0
Deerwood (126, 92%)
Portage (34, 29%)
Eastern
108.5 → 157.8
0
Vivian (98, 75%)
Elma (36, 29%)
Interlake
  97.3 → 134.4
0
Petersfield (84, 76%)
Woodlands (24, 21%)
Northwest
  93.4 → 133.4
0
Roblin (87, 75%)
Birch River (26, 25%)
Southwest
102.3 → 137.5
2
Carberry EC (132, 112%)
Oakburn (49, 43%)

 

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 22, 2025 relative to field capacity. Soil moisture is very variable across agro-Manitoba with areas within the same regions showing very dry to wet conditions. The majority of the Interlake is showing dry to very dry conditions.
  2. Soil Moisture 0 - 120 cm shows a regional representation of soil moisture conditions for the top 120 cm on June 22, 2025 relative to field capacity. The majority of the province is showing wet or optimal conditions at the 0 to 120 cm depth. Parts of the Northwest, Interlake and Eastern regions are showing 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 22, 2025. Much of the Southwest, Central, and East regions have accumulated more than 475 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 22, 2025. Above normal temperatures early in the season have resulted in GDD Accumulations above 110% 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
414 → 491
100
Winkler (610, 128%)
Pilot Mound (471, 113%)
Eastern
412 → 480
100
Winnipeg (571, 126%)
Prawda (478, 111%)
Interlake
389 → 469
100
Selkirk (545, 119%)
Fisher Branch (435, 110%)
Northwest
340 → 426
100
Ashville (493, 124%)
The Pas (405, 119%)
Southwest
308 → 463
100
Deloraine (531, 122%)
Wasagaming (381, 124%)

 

Corn Heat Units

Total Accumulation of Corn Heat Units (2 MB)

Percent Normal Accumulation Corn Heat Units (2 MB)

  1. Total Accumulated Corn Heat Units illustrates the total accumulated Corn Heat Units (CHU) for the growing season to from May 1 – June 22. More than 800 CHU have accumulated in the majority of the Interlake, 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 for the period of May 1 – June 22. CHU accumulations are above normal for all regions, however, recent cooler temperatures have brought the seasonal totals closer to the 30-year average.
 

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
672 → 791
100
Winkler (949, 123%)
Pilot Mound (752, 111%)
Eastern
666 → 778
100
Winnipeg (914, 125%)
Sprague (810, 119%)
Interlake
624 → 754
100
Selkirk (888, 120%)
Fisher Branch (749, 118%)
Northwest
547 → 689
100
Ashville (816, 128%)
The Pas (681, 115%)
Southwest
494 → 750
100
Deloraine (863, 123%)
Wasagaming (674, 137%)

 

P-Days

Percent Normal P-Days (2 MB)

Total Accumulated P-Days (2 MB)

  1. Total Accumulated P-Days (June 1 – 22) 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 150 P-Days so far this season.
  2. Percent of Normal Accumulated P-Days (June 1 – 22) 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 95% 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.