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)

Precipitation was variable across agro-Manitoba from May 29 - June 4, 2023 with values ranging from 0 to 57.1 mm (Table 1). Isolated storms brought significant rainfall to areas in the Estern region, parts of the Interlake, and parts of the Northwest. Teulon (57.1 mm) recived the most precipitation in the past seven days.  

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
Pilot Mound (42.0 mm)
Several (0 mm)
Eastern
Winnipeg (54.9 mm)
Gardenton (4.3 mm)
Interlake
Teulon (57.1 mm)
Taylor’s Point (0 mm)
Northwest
Ashville (53.6 mm)
Ste. Rose (0.2 mm)
Southwest
Russell (56.5 mm)
Bede (0.4 mm)
 

Percent Normal Precipitation (PDF 2 MB)

Total Accumulated Precipitation (PDF 2 MB)

Climate normals for total accumulated precipitation from May 1 - June 4, 2023 range from 42.5 to 73.0 mm (Table 2), and are based on 30-year historical data. While much of the province received rain the past week, most of the Central and Interlake regions have total precipitation amounts less than 50% of normal. Pockets of the Interlake, Northwest and Southwest have had highter than 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
58.6 → 69.0
0
Pilot Mound (52, 75)
Kane (12, 20)
Eastern
63.6 → 73.0
1
Winnipeg (75, 115)
Gardenton (12, 18)
Interlake
51.6 → 65.5
2
Teulon (72, 111)
Selkirk (11, 17)
Northwest
42.5 → 68.3
4
Ashville (88, 149)
Grandview (10, 16)
Southwest
49.4 → 69.0
7
Waskada (100, 176)
Findlay (5, 9)

 Soil Moisture

1) Soil Moisture 0 -30 cm (PDF 619 KB) shows a regional representation of soil moisture conditions for the top 30 cm on June 4, 2023 relative to field capaciy. Soil moisture levels are variable throughout agro-Manitoba with the majority of the province is showing optimal to wet conditions to the 30cm depth.

2) Soil Moisture 0 - 120 cm (PDF 614 KB) shows a regional representation of soil moisture conditions for the top 120 cm on June 4, 2023 relative to field capacity. The majority of the province is showing wet conditions to the 120 cm depth. 

Growing Degree Days

1) Total Accumulation of Growing Degree Days (PDF 2 MB) shows the accumulated growing degree days (GDD) for the period of May 1 - June 4, 2023. Much of agro-Manitoba has accumulated more than 370 GDD. Central and Eastern regions have accumulated the most GDD. 

2) Percent Normal Accumulated Growing Degree Days (PDF 2 MB) for May 1 - June 4, 2023 represents the variation of accumulated Growing Degree Days (GDD) from the historical record over a 30-year period. All of the agricultural regions in the province have accumulated more than 120% of normal GDD.

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)
Stations Above Normal (%)
Highest GDD Accumulation This Season (GDD, % norm.)
Lowest GDD Accumulation This Season (GDD, % norm.)
Central
240 → 301
28
Emerson (441, 146)
Lakeland (367, 153)
Eastern
234 → 301
20
St. Adolphe (432, 163)
Sprague Lake (345, 143)
Interlake
213 → 274
15
Selkirk (416, 154)
Taylor’s Point (346, 151)
Northwest
174 → 256
22
Alonsa (363, 142)
The Pas (297, 171)
Southwest
205 → 280
42
Glenboro (398, 146)
Wasagaming (308, 140)

Corn Heat Units

1) Total Accumulated Corn Heat Units (PDF 2 MB) for May 1 - June 4, 2023 illustrates the total accumulated Corn Heat Units (CHU) for the growing season to date. Continued warm temperatures led to the accumulation of more than 590 CHU in the Southwest, Interlake, Central and Eastern regions.  

2) Percent Normal Accumulated Corn Heat Units (PDF 2 MB) for May 1 - June 4, 2023 represents the variation of accumulated corn heat units (CHU) from the historical record overa 30-year period. All of agro-Manitoba has accumulated more than 120% of the historical accumulated CHU. 

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
 395 → 497
28
Emerson (679, 136)
Lakeland (583, 148)
Eastern
419 → 497
20
St. Adolphe (675, 149)
Sprague Lake (573, 134)
Interlake
371 → 460
50
Selkirk (649, 144)
Gimli (570, 154)
Northwest
308 → 434
22
Alonsa (588, 135)
The Pas (509, 165)
Southwest
370 → 467
42
Deloraine (638, 137)
Wasagaming (527, 138)

 

Potatp Days

1) Total Accumulated P-Days (PDF 2 MB) for June 1 - 4, 2023 represents the total accumulated physiological days for potatoes (P-Days) since June 1. P-Days accumulation has a different start date (June 1) because accumulation commences at about 50% potato emergence. Other heat accumulation starts from May 1. The Northwest has accumulated the most P-Days to date.

2) Percent of Normal Accumulated P-Days (2 MB) for June 1 - 4, 2023 represents the variation of accumulated physiological days for potatoes (P-Days) from the historical record over a 30-year period. All of agro-Manitoba has accumulated more than 95% of normal P-Days. The Northwest and Interlake have accumulated the highest P-Days when compared to normal.

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.