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.
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 (June 8 - 14)
Unprecedented weather events occurred over several regions of agro-Manitoba over the past week. Following a stormy weekend, severe, long-lived, thunderstorms swept along the Southern and Interlake regions of the province on June 9 and 10. These storms brought strong winds, hail, intense lightning, extreme rain, and tornadoes. Two tornadoes were confirmed on June 9: one near Ste. Anne and one near Dufrost. Record-setting precipitation fell on parts of the southern Interlake and Eastern regions. Infrastructure and roads were damaged, rivers swelled, basements flooded, there were wide-spread power outages, and overland flooding caused extensive flooding of cropping areas. These storms compounded impacts from the severe weather that occurred during the previous week. States of emergency were declared in more than 10 municipalities due to damage and flooding. Areas hit hardest with rainfall include Stonewall, Petersfield, Teulon, Woodlands, Dugald, and Elie. Areas that missed the heavy rainfall activity experienced significant wind speeds with several areas in the Southwest reporting maximum wind gusts over 80 km/hr.
For further details on the recent storm events:
| Event | Station | Time of Event | Measurement |
| Maximum Wind Gust |
Argue | June 9 at 10:43 pm | 114 km/hr |
| Most Rainfall in 15 min. | Petersfield | June 9 from 8:45 pm to 9:00 pm | 28.5 mm |
| Most Rainfall in 1 hr | Stonewall | June 9 from 9:00 pm to 10:00 pm | 69.1 mm |
| Most Rainfall in 24 hrs | Stonewall | June 9 | 233.8 mm |
Table 1. Range of measurements of seven-day accumulated precipitation in Manitoba’s Agricultural Regions (June 8 - 14, 2026)
Region |
Wettest location last week |
Driest location last week |
Central |
Elie (91.2 mm) |
Cypress River (8.0 mm) |
Eastern |
Dugald (105.6 mm) |
Zhoda (29.2 mm) |
Interlake |
Stonewall (266.9 mm) |
Taylor's Point (16.9 mm) |
Northwest |
Rorketon (54.4 mm) |
Amaranth (7.4 mm) |
Southwest |
Birtle (41.9 mm) |
Wawanesa (2.4 mm) |
Percent Normal Precipitation (PDF 1.6 MB)
Total Accumulated Precipitation (PDF 1.6 MB)
Climate normals for total accumulated precipitation from May 1 to June 14 range from 69.2 mm to 133.0 mm (Table 2) and are based on 30-year historical data. Since May 1, the large portions of the Northwest, Interlake, and Eastern regions have accumulated more than 80 mm of precipitation. Recent precipitation events have brought seasonal accumulations well above normal for the Interlake and Northwest regions. Areas of the Northwest have accumulated more that 150% of normal precipitation while areas of the southern Interlake near Stonewall have accumulated more than 250% of normal precipitation. Areas south of Riding Mountain National Park and the Red River Valley are near or slightly above normal precipitation accumulations since May 1. The majority Southwest is still below normal at under 70% of the 30-year average precipitation so far this season.
Table 2. Summary of measurement of total accumulated precipitation in Manitoba’s Agricultural Regions. (May 1 to June 14, 2026)
Region |
Range of Normals (mm) |
Stations Above Normal (%) |
Wettest Location this Season (mm, % norm.) |
Driest Location this Season (mm, % norm.) |
Central |
92.4→ 120.8 |
15 |
Elie (154, 151) |
Cypress River (44, 43) |
Eastern |
87.9 → 133.1 |
30 |
Stead (159, 180) |
Saint Labre (57, 520) |
Interlake |
79.0 → 109.5 |
76 |
Stonewall (312, 285) |
Riverton (68, 78) |
Northwest |
69.3 → 108.2 |
71 |
Minitonas (224, 272) |
Laurier (68, 79) |
Southwest |
81.1 → 112.1 |
11 |
Forrest (124, 134) |
Ninette (28, 27) |
Soil Moisture
Soil Moisture 30cm (1.3 MB)
Soil Moisture 0 - 30 cm shows a regional representation of soil moisture conditions for the top 30 cm on June 14, 2026 relative to field capacity. Most areas are showing wet or very wet conditions. Areas of the Northwest and Interlake are showing very wet conditions due to recent extensive rains. Large portions of the Southwest region are showing optimal to dry conditions.
Soil Moisture 120 cm (1.3 MB)
Soil Moisture 0 - 120 cm shows a regional representation of soil moisture conditions for the top 120 cm on June 14, 2026 relative to field capacity. The majority of agricultural regions are showing wet or very wet to conditions at the 0-120 cm depths.
Growing Degree Days
Total Accumulated Growing Degree Days (PDF 1.6MB)
Total Accumulation of Growing Degree Days shows the accumulated growing degree days (GDD) for the period of May 1 – June 14, 2026. GDD accumulations ranged between 304 and 449 GDD so far this growing season. Warm temperatures early this week contributed to further increases in GDD. Most of Southern Manitoba has accumulated more than 350 GDD.
Percent Normal Accumulated Growing Degree Days (PDF 1.7 KB)
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 – June 14, 2026. GDD Accumulations are above normal for the all of agro-Manitoba. Most of the Southwest and Interlake regions have accumulated more than 115% of normal GDD.
Table 3. Summary of total accumulated growing degree days (GDD) and percent deviation from normal in Manitoba's Agricultural Regions (May 1- June 14, 2026)
Region |
Range of Normals (mm) |
Stations Above Normal (%) |
Highest GDD accumulation this season (GDD, % norm.) |
Lowest GDD accumulation this season (GDD, % norm.) |
Central |
324 → 386 |
100 |
Winkler (449, 119) |
Lakeland (377, 111) |
Eastern |
317 → 377 |
95 |
St. Adolphe (412, 112) |
Sprague Lake (320, 97) |
Interlake |
296 → 366 |
100 |
Selkirk (404, 114) |
Gimli (345, 110) |
Northwest |
253 → 328 |
100 |
Ste. Rose (367, 116) |
Pipe Lake (309, 111) |
Southwest |
232 → 365 |
100 |
Dand (438, 123) |
Wasagaming (304, 131) |
Corn Heat Units
Total Accumulated Corn Heat Units (PDF 1.6 KB)
Total Accumulated Corn Heat Units illustrates the total accumulated Corn Heat Units (CHU) for the growing season to from May 1 – June 14. More than 600 CHU have accumulated in much of the Southwest, Central, and Eastern regions since May 1.
Percent Normal Accumulated Corn Heat Units (PDF 1.6 KB)
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 – June 14. Above average CHU accumulations were observed throughout the province. The Northwest and Southwest regions saw accumulations above 120% of the 30-year normals.
Table 4. Summary of total accumulated corn heat units (CHU) and percent deviation from normal in Manitoba's Agricultural Regions (May 1 - June 14, 2026)
Region |
Range of Normals (mm) |
Stations Above Normal (%) |
Highest CHU accumulation this season (CHU, % norm.) |
Lowest CHU accumulation this season (CHU, % norm.) |
Central |
522 → 622 |
100 |
Winkler (727, 121) |
Lakeland (623, 114) |
Eastern |
511 → 610 |
100 |
Steinbach (675, 120) |
Sprague Lake (548, 102) |
Interlake |
473 → 586 |
100 |
Selkirk (652, 114) |
Gimli (577, 116) |
Northwest |
405 → 528 |
100 |
Ste. Rose (618, 122) |
The Pas (508, 125) |
Southwest |
369 → 589 |
100 |
Dand (720, 126) |
Wasagaming (549, 149) |
P-Days
Total Accumulated P-Days (June 1-14, 2026) 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 104 P-Days so far this season.
Percent of Normal Accumulated P-Days (June 1-14, 2026) 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 PDay accumulations to over 110% of normal so far this season.
First Fall Frost
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.
