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. 

• Current Conditions by Station
• Current Weather Conditions - Interactive Map
• Current Conditions Summary - Central, Eastern & Interlake
• Current Conditions Summary - Northwest & Southwest
• Hourly Summary
• Daily Summary
• Seasonal Summary
• Current Soil Temperature
• Current Winter Wheat Soil Temperature   

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.

• Crop Weather Report (PDF 39KB)
• Archived Crop Weather Reports

Special Weather Report

•  Special Crop Weather Report -Hourly Precipitation September 16 & 17 2024 (PDF 45KB)

Higher resolution maps are available upon request.

Precipitation

Seven-Day Accumulated Precipitation (PDF 2MB) 

Percent Normal Precipitation (PDF 1 MB)

Total Accumulated Precipitation (PDF 2 MB) 

Soil Moisture

Soil Moisture 0-30 cm  (PDF 2 MB)

Soil Moisture 0-120 cm  (PDF 2 MB)

1. Soil Moisture 0 - 30 cm shows a regional representation of soil moisture conditions for the top 30 cm on October 20, 2024 relative to field capacity. Soil moisture is variable across agro-Manitoba with the majority showing optimal to very dry soil moisture conditions at the surface depths.
2. Soil Moisture 0 - 120 cm shows a regional representation of soil moisture conditions for the top 120 cm on October 20, 2024 relative to field capacity. The majority of the province is showing optimal or wet conditions at the 0 to 120 cm depth. Some localized regions are showing dry or very dry conditions.

Growing Degree Days

Total Accumulated Growing Degree Days (PDF 2MB)

Percent Normal Accumulated Growing Degree Days (PDF 2 MB)

1. Total Accumulation of Growing Degree Days shows the accumulated growing degree days (GDD) for the period of May 1 – October 20, 2024. Much of the East, Central and Southwest regions have accumulated more than 1800 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 – October 20, 2024. GDD Accumulation is between 105% and 115% 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.

Corn Heat Units

Total Accumulated Corn Heat Units (PDF 2 MB)

Percent Normal Accumulated Corn Heat Units (PDF 2 MB)

1. Total Accumulated Corn Heat Units illustrates the total accumulated Corn Heat Units (CHU) for the growing season to date. More than 2900 CHU have accumulated in the majority of the Southwest, Central, Interlake, 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. CHU accumulation is near or above normal for the season. The majority of agricultural regions in Manitoba have accumulated more than 110% 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 Region.

Potato Days

Total Accumulated P-Days (PDF 2 MB)

Percent Normal Accumulated P-Days  (PDF 1 MB)

1. Total Accumulated P-Days (June 1 – October 20) 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 950 P-Days.
2. Percent of Normal Accumulated P-Days (June 1 – October 20) 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 115% 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.

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)

Monthly Precipitation 2021

• Percent of Normal Precipitation - May (PDF 488 KB)
• Total Accumulated Precipitation - May (PDF 488 KB)
• Percent of Normal Precipitation - June (PDF 488 KB)
• Total Accumulated Precipitation - June (PDF 490 KB)
• Percent of Normal Precipitation - July (PDF 482 KB)
• Total Accumulated Precipitation - July (PDF 487 KB)
• Percent of Normal Precipitation - August (PDF 488 KB)
• Total Accumulated Precipitation - August (PDF 499 KB)
• Percent of Normal Precipitation - September (PDF 477 KB)
• Total Accumulated Precipitation - September (PDF 478 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.