Okhotsk region | JMA weather station "Omu"
When does it snow in Omu? Snow depth and snowfall normals
The station is at an elevation of 14 m. All figures are normals from the Japan Meteorological Agency (JMA): 30-year averages for 1991–2020.
Snow in Omu now
- Snow depth now
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- Snowfall, past 24 hours
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- Normal depth for today
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The snow falling in this box matches the past 24 hours of snowfall (it may not be snowing right now). Snow depth now at 41 places →
- Annual snowfall
- 343cm28th of 41 places
- Deepest snow
- 73cmFebruary max normal: 66cm
- Snowiest month
- January84cm in the month
- Ice days (year)
- 75.1 daysDays with a high below 0℃
When the snow starts and ends in Omu
| First snow of the season | Oct 27 |
|---|---|
| First day with 1 cm+ snow cover | Nov 7 |
| Lasting snow cover begins | Dec 1 |
| Deepest day (daily normals) | Feb 20（53cm） |
| Lasting snow cover ends | Apr 4 |
| Last day with 1 cm+ snow cover | Apr 22 |
| Last snow of the season | May 7 |
JMA normals for the first and last snow, the first and last snow cover, and lasting snow cover (snow on the ground for 30 days or more in a row). First/last snow dates and days with snowfall were recalculated by JMA in 2024, when snow observation switched from human observers to instruments.
Snow depth in Omu (October to May)
Daily snow depth normals. Tap a month for details.
- OctoberSnowfall 1cmMax depth 1cmMean 9.8℃
- NovemberSnowfall 31cmMax depth 13cmMean 2.9℃
- DecemberSnowfall 83cmMax depth 36cmMean -3.3℃
- JanuarySnowfall 84cmMax depth 54cmMean -5.9℃
- FebruarySnowfall 71cmMax depth 66cmMean -6.1℃
- MarchSnowfall 59cmMax depth 63cmMean -1.7℃
- AprilSnowfall 17cmMax depth 22cmMean 4.1℃
- MaySnowfall 2cmMax depth 1cmMean 9.0℃
Monthly snowfall in Omu
Monthly snow and temperature normals in Omu
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Year | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Snowfall (monthly total) | 84cm | 71cm | 59cm | 17cm | 2cm | 0cm | 0cm | 0cm | 0cm | 1cm | 31cm | 83cm | 343cm |
| Max snow depth | 54cm | 66cm | 63cm | 22cm | 1cm | 0cm | 0cm | 0cm | 0cm | 1cm | 13cm | 36cm | 73cm |
| Days with 10 cm+ snow cover | 30.5 days | 28.3 days | 28.4 days | 4.7 days | 0.1 days | 0.0 days | 0.0 days | 0.0 days | 0.0 days | 0.0 days | 2.0 days | 20.3 days | 113.7 days |
| Days with snowfall | 29.0 days | 25.9 days | 24.5 days | 12.6 days | 1.9 days | 0.0 days | 0.0 days | 0.0 days | 0.0 days | 2.4 days | 16.4 days | 28.4 days | 140.7 days |
| Mean temperature | -5.9℃ | -6.1℃ | -1.7℃ | 4.1℃ | 9.0℃ | 12.3℃ | 16.5℃ | 18.8℃ | 16.0℃ | 9.8℃ | 2.9℃ | -3.3℃ | 6.0℃ |
| Mean daily high | -2.5℃ | -2.1℃ | 2.1℃ | 8.6℃ | 13.8℃ | 16.2℃ | 20.1℃ | 22.5℃ | 20.5℃ | 14.6℃ | 6.7℃ | 0.0℃ | 10.0℃ |
| Mean daily low | -10.9℃ | -11.7℃ | -6.4℃ | -0.7℃ | 4.0℃ | 8.4℃ | 13.2℃ | 15.2℃ | 11.2℃ | 4.6℃ | -1.4℃ | -7.7℃ | 1.5℃ |
| Ice days (high below 0℃) | 24.9 days | 20.9 days | 10.4 days | 0.4 days | 0.0 days | 0.0 days | 0.0 days | 0.0 days | 0.0 days | 0.0 days | 2.4 days | 16.1 days | 75.1 days |
| Precipitation | 43.3mm | 36.0mm | 39.0mm | 44.6mm | 61.1mm | 74.8mm | 115.1mm | 133.8mm | 137.2mm | 92.3mm | 77.4mm | 62.1mm | 916.5mm |
June to September link to the Hokkaido-wide summer pages. "Year" for max snow depth is the normal for the whole winter.
Temperature in Omu (12 months)
HighMeanLow
Location and nearby places
- Mombetsuabout 40 km · 338cm of snow a year
- Nayoroabout 46 km · 829cm of snow a year
- Esashi (Kitami-Esashi)about 50 km · 562cm of snow a year
- Sounkyoabout 92 km · 907cm of snow a year
Sources
- Japan Meteorological Agency (JMA), Climatological Normals 1991–2020 (in Japanese); Normals for Omu (JMA, in Japanese)
- JMA, Recalculated normals for snow days and first/last snow dates, 2024 (PDF, in Japanese)
- Station locations: JMA, List of AMeDAS stations (in Japanese)
- Current snow and 24-hour snowfall: JMA AMeDAS
- Map: National Land Numerical Information, Administrative Boundaries (MLIT) (processed)