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)
Special Maps and Report
- Special Hourly Precipitation Report September 14-16, 2025 (134 KB)
- Special Precipitation Map September 11-12, 2025 (1 MB)
- Special Hourly Precipitation Report September 11 - 12, 2025 (130 MB)
- Frost Report September 7, 2025 (130 KB)
- Frost Map September 7, 2025 (1 MB)
- Frost Report September 4, 2025 (130 KB)
- Special Precipitation Map August 20-21, 2025 (1 MB)
- Special Hourly Precipitation Report August 20-21, 2025 (142 KB)
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.
- Crop Weather Report (PDF 155 KB)
- Archived Crop Weather Reports
Higher resolution maps are available upon request.
Precipitation
Seven-Day Accumulated Precipitation (PDF 2 MB)
Seven-Day Accumulated Precipitation (October 20 - 26)
Small amounts of precipitation fell in the western portions of agro-Manitoba. Precipitation accumulations between 15 mm and 30 mm fell in the Eastern and Interlake regions (Table 1). The highest accumulations of rainfall were observed in the Eastern region with Sprague Lake accumulating 27.9 mm.
Table 1. Range of measurements of seven-day accumulated precipitation in Manitoba’s Agricultural Regions. (October 20 - 26, 2025)
Region |
Wettest Location last seven days |
Driest Location last seven days |
Central |
Emerson (19.5 mm) |
Cypress River, Gladstone, Bagot (1.5 mm) |
Eastern |
Sprague Lake (27.9 mm) |
Stead (15.2 mm) |
Interlake |
Selkirk (22.7 mm) |
Taylor’s Point (10.4 mm) |
Northwest |
Birch River (8.2 mm) |
Roblin, San Clara (0 mm) |
Southwest |
Wasagaming (7.0 mm) |
Several (0 mm) |
Percent Normal Precipitation (PDF 1 MB)
Total Accumulated Precipitation (PDF 2 MB)
Climate normals for total accumulated precipitation from May 1 to October 26 range from 278.8 mm to 443.2 mm (Table 2) and are based on 30-year historical data. Most of agro-Manitoba has accumulated more than 220 mm of precipitation this growing season with the exception of the Interlake and a small part of the Northwest region. Total precipitation accumulations this season remain below 80% compared to the 30-year average in the Interlake and parts of the Northwest. Large areas of the Southwest, Central, and Eastern regions have accumulated more than 90% of normal precipitation levels since May 1.
Table 2. Summary of measurement of total accumulated precipitation in Manitoba’s Agricultural Regions (May 1 – October 26, 2025)
Region |
Range of Normals (mm) |
Percent of Stations Above Normal (%) |
Wettest Location this Season (mm, % normal) |
Driest Location this Season (mm, % normal) |
Central |
308.5 → 435.1 |
22 |
Starbuck (447, 112%) |
Austin (262, 78%) |
Eastern |
356.2 → 443.2 |
25 |
Sprague Lake (435, 112%) |
Elma (272, 67%) |
Interlake |
298.5 → 416.1 |
0 |
Stonewall (331, 79%) |
Poplarfield (178, 56%) |
Northwest |
316.0 → 386.1 |
27 |
Ethelbert (470, 122%) |
Laurier (177, 55%) |
Southwest |
278.8 → 366.4 |
30 |
Neepawa (429, 121%) |
Shoal Lake (211, 67%) |
Soil Moisture
Soil Moisture 30cm (1 MB)
Soil Moisture 120cm (1 MB)
- Soil Moisture 0 - 30 cm shows a regional representation of soil moisture conditions for the top 30 cm on October 26, 2025 relative to field capacity. The majority of agro-Manitoba is showing wet soil moisture conditions. Most of the Interlake is showing optimal conditions on October 26.
- Soil Moisture 0 - 120 cm shows a regional representation of soil moisture conditions for the top 120 cm on October 26, 2025 relative to field capacity. Most of the Interlake and Northwest is showing optimal conditions. Most of the remaining regions are showing wet or optimal conditions at the 0 to 120 cm depth.
Growing Degree Days
Total Accumulation of Growing Degree Days (2 MB)
Percent Normal Accumulated Growing Degree Days (2 MB)
- Total Accumulation of Growing Degree Days shows the accumulated growing degree days (GDD) for the period of May 1 – October 26, 2025. Much of the Central, Eastern, and Southwest regions have accumulated more than 1850 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 – October 26, 2025. GDD Accumulations are between 105% and 120% 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 (May 1 – October 26, 2025)
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 |
1587 → 1817 |
100 |
Winkler (2127, 118%) |
Pilot Mound (1775, 111%) |
Eastern |
1625 → 1797 |
100 |
St. Adolphe (2016, 114%) |
Sprague Lake (1692, 103%) |
Interlake |
1540 → 1795 |
100 |
Selkirk (2003, 114%) |
Fisherton (1745, 113%) |
Northwest |
1335 → 1676 |
100 |
Amaranth (1863, 111%) |
San Clara (1560, 117%) |
Southwest |
1278 → 1768 |
100 |
Deloraine (1951, 116%) |
Wasagaming (1524, 119%) |
Corn Heat Units
Total Accumulation of Corn Heat Units (2 MB)
Percent Normal Accumulation Corn Heat Units (2 MB)
- Total Accumulated Corn Heat Units illustrates the total accumulated Corn Heat Units (CHU) for the growing season to from May 1 – October 26. More than 2900 CHU have accumulated in most of the Southwest, Interlake, 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 for the period of May 1 – October 26. CHU accumulations are between 110% and 120% of normal for most regions.
Table 4. Summary of total accumulated corn heat units (CHU) and percent deviation from normal in Manitoba’s Agricultural Regions (May 1 – October 26, 2025)
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 |
2561 → 2904 |
100 |
Winkler (3372, 116%) |
Pilot Mound (2901, 113%) |
Eastern |
2625 → 2885 |
100 |
St. Adolphe (3262, 116%) |
Sprague Lake (2883, 108%) |
Interlake |
2478 → 2868 |
100 |
Selkirk (3241, 116%) |
Fisherton (2888, 117%) |
Northwest |
2164 → 2723 |
100 |
Amaranth (3069, 113%) |
San Clara (2620, 121%) |
Southwest |
2061 → 2805 |
100 |
Deloraine (3195, 119%) |
Wasagaming (2601, 126%) |
P-Days
Percent Normal P-Days (2 MB)
Total Accumulated P-Days (2 MB)
- Total Accumulated P-Days (June 1 – October 26) 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 southern regions of agro-Manitoba have accumulated more than 960 P-Days this season.
- Percent of Normal Accumulated P-Days (June 1 – October 26) 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 105% 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
- 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.

