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 upon request.

Precipitation

Seven-Day Accumulated Precipitation (PDF 2 MB)

Agro-Manitoba received variable amounts of precipitation over the past seven days. Isolated heavy rains occurred in several regions. Weekly rainfall values ranged from 2.1 mm to 51.4 mm (Table 1). The Eastern and Northwest regions accumulated the most precipitation between June 3 and June 9. Menisino (51.4 mm) received the most precipitation.

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
 Clearwater (15.6 mm)
 Austin (4.3 mm)
Eastern
 Menisino (51.4 mm)
 St.Pierre (5.3 mm)
Interlake
 Gimli (21.6 mm)
 Fisher Branch, Taylor's Point (7.8 mm)
Northwest
 Birch River (43.3 mm)
 Reedy Creek (8.2 mm)
Southwest
 Sinclair (27.9 mm)
 Mountainside (2.1 mm)

 

Percent Normal Precipitation (PDF 1 MB)

Total Accumulated Precipitation (PDF 2 MB)

Climate normals for total accumulated precipitation from May 1 to June 9 range from 51.2 mm to 93.3 mm (Table 2) and are based on 30-year historical data. Total accumulated rainfall was variable across agro-Manitoba with the Central region accumulating the most precipitation so far this season. With recent rainfall events, all regions of the province have accumulated 100% of normal precipitation since May 1. Many areas have exceeded 150% of normal precipitation.

Table 2. Summary of measurements 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
68.4 → 83.7
33 (all)
Jordan (174, 234%)
Emerson (125, 149%)
Eastern
76.4 → 93.3
23 (all)
Winnipeg (159, 202%)
Steinbach (94, 115%)
Interlake
62.3 → 78.2
18 (all)
Gimli (143, 200%)
Moosehorn (83, 120%)
Northwest
51.2 → 81.5
23 (all)
Reedy Creek (147, 208%)
Minitonas (74, 117%)
Southwest
62.2 → 83.7
44 (all)
Eden (168, 220%)
Deloraine (75, 110%)

 

Soil Moisture

Soil Moisture 0-30 cm  (PDF 2 MB)

Soil Moisture 0-120 cm  (PDF 2 MB)

Soil Moisture 0-30 cm shows a regional representation of soil moisture conditions for the top 30 cm on June 9, 2024, relative to field capacity. The majority of agro-Manitoba is showing wet soil moisture conditions at the surface depths.

Soil Moisture 0-120 cm shows a regional representation of soil moisture conditions for the top 120 cm on June 9, 2024, relative to field capacity. The majority of the province is showing wet conditions at the 0 - 120 cm depth.

 

Growing Degree Days

Total Accumulated Growing Degree Days (PDF 2 MB)

Percent Normal Accumulated Growing Degree Days (PDF 2 MB)

Total accumulation of Growing Degree Days shows the accumulated growing degree days (GDD) for the period of May 1- June 9, 2024. Much of the East, Central and Southwest regions have accumulated more than 270 GDD since May 1.

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 to June 9, 2024. GDD accumulation is near or below normal for the majority of Agro-Manitoba.

Table 3. Summary of growing degree days (GDD) and precent deviation from normal in Manitoba's Agricultural Regions.

Region
Range of Normals (GDD)
Stations Above Normal (%)
Highest GDD Accumulation This Season (GDD, % norm.)
Lowest GDD Accumulation This Season (GDD, % norm.)
Central
294 → 360
1
Winkler (340, 97%)
Manitou (263, 76%)
Eastern
282 → 360
4
St. Adolphe (315, 99%)
Sprague Lake (240, 82%)
Interlake
261 → 327
6
Selkirk (310, 95%)
Fisherton (250, 93%)
Northwest
216 → 308
0
Ste. Rose (270, 95%)
The Pas (174, 80%)
Southwest
250 → 340
0
Waskada (293, 90%)
Wasagaming (189, 71%)

 

Corn Heat Units

Total Accumulated Corn Heat Units (PDF 2 MB)

Percent Normal Accumulated Corn Heat Units (PDF 2 MB)

Total Accumulated Corn Heat Units illustrates the total Corn Heat Units (CHU) for the growing season to date. More than 450 CHU have accumulated in the majority of the Southwest, Central, and Eastern regions since May 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 accumulation is below normal for the season. The majority of agricultural regions of the province have accumulated less than 95% 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)
Stations Above Normal (%)
Highest CHU Accumulation This Season (CHU, % norm.)
Lowest CHU Accumulation This Season (CHU, % norm.)
Central
483 → 591
0
Winkler (570, 99%)
Manitou (439, 77%)
Eastern
501 → 591
2
St. Pierre (532, 97%)
Sprague Lake (454, 88%)
Interlake
451 → 546
4
Selkirk (510, 94%)
Fisherton (430, 92%)
Northwest
378 → 517
0
St. Rose (450, 92%)
The Pas (232, 72%)
Southwest
446 → 557
0
Waskada (509, 92%)
Wasagaming (342, 74%)

 

Potato Days

Total Accumulated P-Days (June 1-9) represents the total accumulated physiological days for potatoes (P-Days) since June 1. P-Days accumulation begins at about 50% potato emergence. As a result, accumulation begins on June 1. Other heat accumulation starts from May 1. The majority of agro-Manitoba has accumulated more than 50 P-Days.

Percent Normal Accumulated P-Days (June 1-9) 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.

 

Note: The information on the maps provides regional representation only. 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.