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 41KB)
• Archived Crop Weather Reports

Higher resolution maps are available upon request.

Precipitation

Seven-Day Accumulated Precipitation (PDF 2MB)

Agro-Manitoba received variable amounts of precipitation over the past seven days. Precipitation for the past seven ranged from 0.6 mm to 77.8 mm (Table 1) with areas of theNorthwest and Southwest accumulating the largest amounts of precipitation. Minitonas (77.8 mm) received the most precipitation.

Table 1. Range of measurements of seven-day accumulated precipitation in Manitoba's Agricultural Regions.   

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 August 25, 2024 relative to field capacity. Soil moisture is variable across agro-Manitoba with the majority showing optimal or wet soil moisture conditions at the surface depths.  Norhern areas of the Eastern region are showing dry to very dry conditions.
2. Soil Moisture 0 - 120 cm shows a regional representation of soil moisture conditions for the top 120 cm on August 25, 2024 relative to field capacity. The majority of the province is showing optimal or wet conditions at the 0 to 120 cm depth.

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 – August 25, 2024. Much of the East and Central regions have accumulated more than 1300 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 – August 25, 2024. GDD Accumulation is between 95% and 105% 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.

Region	Range of Normals (GDD)	Number of Stations Above Normal	Highest GDD Accumulation This Season (GDD, % norm.)	Lowest GDD Accumulation This Season (GDD, % norm.)
Central	1284 → 1456	14	Winkler (1483, 103%)	Windygates (1256, 87%)
Eastern	1255 → 1449	16	Steinbach (1432, 107%)	Sprague Lake (1204, 95%)
Interlake	1216 → 1390	14	Selkirk (1404, 101%)	Narcisse (1282, 103%)
Northwest	1125 → 1324	13	Amaranth (1333, 103%)	San Clara (1120, 93%)
Southwest	1143 → 1345	18	Boissevain (1358, 98%)	Oakburn (1110, 91%)

 

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 2100 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 100% 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.

 

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.