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
- Agro-Manitoba Weather Extremes of 2022 (PDF 1 MB)
- Agro-Manitoba Weather Extremes of 2021 (PDF 1 MB)
- Agro-Manitoba Weather Extremes of 2020 (PDF 1 MB)
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)
Table 1. Range of measurements of four-day accumulated precipitation in Manitoba's Agricultural Regions.
Region |
Wettest Location last four days |
Driest Location last four days |
Central |
Cypress River (10.7 mm) |
Several (0 mm) |
Eastern |
Kleefeld (1.5 mm) |
Several (0 mm) |
Interlake |
Riverton (3.2 mm) |
Taylor’s Point (0 mm) |
Northwest |
San Clara (2.7 mm) |
Several (0 mm) |
Southwest |
Boissevain (12.5 mm) |
Several (0 mm) |
Percent Normal Precipitation (PDF 2 MB)
Percent Total Precipitation (PDF 2 MB)
Climate normals for total accumulated precipitation from May 1 to May 11 range from 13.8 mm to 24.3 mm (Table 2) and are based on 30-year historical data. All of agro-Manitoba has accumulated less than 20 mm of precipitation since May 1. Accumulations in most areas are far below normal (less than 50%) precipitation 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 |
16.8 → 24.3 |
0 |
Cypress River (10.7, 50%) |
Several (0, 0%) |
Eastern |
14.1 → 22.8 |
0 |
Gardenton (5.0, 25%) |
Several (0, 0%) |
Interlake |
14.3 → 20.1 |
0 |
Riverton (3.2, 20%) |
Taylor’s Point (0, 0%) |
Northwest |
14.1 → 19.4 |
0 |
Keld (3.4, 20%) |
Several (0, 0%) |
Southwest |
13.8 → 22.6 |
0 |
Virden (12.7, 67%) |
Oakburn (0.1, 1%) |
Soil Moisture
Soil Moisture 30cm (2 MB)
Soil Moisture 120cm (2 MB)
Growing Degree Days
Total Accumulation of Growing Degree Days (2 MB)
Percent Normal Accumulated Growing Degree Days (2 MB)
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 |
44 → 56 |
100 |
Winkler (117, 218%) |
Lakeland (81, 178%) |
Eastern |
43 → 55 |
100 |
St. Adolphe (107, 203%) |
Sprague Lake (71, 156%) |
Interlake |
37 → 51 |
100 |
Selkirk (94, 188%) |
Fisher Branch (62, 158%) |
Northwest |
27 → 45 |
100 |
Ashville (95, 235%) |
The Pas (58, 214%) |
Southwest |
27 → 53 |
100 |
Deloraine (116, 241%) |
Wasagaming (73, 267%) |
Corn Heat Units
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 |
69 → 88 |
100 |
Winkler (182, 214%) |
Lakeland (140, 197%) |
Eastern |
68 → 87 |
100 |
St. Adolphe (172, 207%) |
Sprague Lake (140, 194%) |
Interlake |
57 → 80 |
100 |
Selkirk (157, 200%) |
Fisher Branch (121, 200%) |
Northwest |
42 → 70 |
100 |
Keld (167, 271%) |
The Pas (107, 255%) |
Southwest |
41 → 84 |
100 |
Deloraine (187, 247%) |
Shoal Lake (137, 231%) |
Seasonal Maps
First Fall Frost
- 10% Risk* Date of the First Fall Frost at 0°C (PDF 579 KB)
- 25% Risk* Date of the First Fall Frost at 0°C (PDF 576 KB)
- Average* Date of the First Fall Frost at 0°C (PDF 575 KB)
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.