Iburi region | JMA weather station "Tomakomai"
When does it snow in Tomakomai? Snow depth and snowfall normals
The station is at an elevation of 6 m. All figures are normals from the Japan Meteorological Agency (JMA): 30-year averages for 1991–2020.
Snow in Tomakomai 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
- 145cm39th of 41 places
- Deepest snow
- 31cmFebruary max normal: 28cm
- Snowiest month
- January42cm in the month
- Ice days (year)
- 30.9 daysDays with a high below 0℃
When the snow starts and ends in Tomakomai
| First snow of the season | Nov 2 |
|---|---|
| First day with 1 cm+ snow cover | Nov 30 |
| Lasting snow cover begins | Dec 29 |
| Deepest day (daily normals) | Feb 5（16cm） |
| Lasting snow cover ends | Mar 11 |
| Last day with 1 cm+ snow cover | Mar 31 |
| Last snow of the season | Apr 19 |
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 Tomakomai (October to May)
Daily snow depth normals. Tap a month for details.
- OctoberSnowfall 0cmMax depth 0cmMean 11.5℃
- NovemberSnowfall 4cmMax depth 3cmMean 4.9℃
- DecemberSnowfall 29cmMax depth 14cmMean -1.2℃
- JanuarySnowfall 42cmMax depth 23cmMean -3.6℃
- FebruarySnowfall 42cmMax depth 28cmMean -3.2℃
- MarchSnowfall 26cmMax depth 19cmMean 0.5℃
- AprilSnowfall 2cmMax depth 2cmMean 5.3℃
- MaySnowfall 0cmMax depth 0cmMean 10.0℃
Monthly snowfall in Tomakomai
Monthly snow and temperature normals in Tomakomai
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Year | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Snowfall (monthly total) | 42cm | 42cm | 26cm | 2cm | 0cm | 0cm | 0cm | 0cm | 0cm | 0cm | 4cm | 29cm | 145cm |
| Max snow depth | 23cm | 28cm | 19cm | 2cm | 0cm | 0cm | 0cm | 0cm | 0cm | 0cm | 3cm | 14cm | 31cm |
| Days with 10 cm+ snow cover | 14.5 days | 19.8 days | 8.1 days | 0.0 days | 0.0 days | 0.0 days | 0.0 days | 0.0 days | 0.0 days | 0.0 days | 0.2 days | 4.3 days | 47.0 days |
| Days with snowfall | 23.3 days | 21.1 days | 20.3 days | 6.4 days | 0.0 days | 0.0 days | 0.0 days | 0.0 days | 0.0 days | 1.2 days | 9.7 days | 20.8 days | 103.5 days |
| Mean temperature | -3.6℃ | -3.2℃ | 0.5℃ | 5.3℃ | 10.0℃ | 14.0℃ | 18.2℃ | 20.4℃ | 17.8℃ | 11.5℃ | 4.9℃ | -1.2℃ | 7.9℃ |
| Mean daily high | 0.5℃ | 0.9℃ | 4.4℃ | 9.6℃ | 14.1℃ | 17.3℃ | 21.0℃ | 23.4℃ | 21.7℃ | 16.2℃ | 9.2℃ | 2.8℃ | 11.8℃ |
| Mean daily low | -8.1℃ | -7.9℃ | -3.7℃ | 1.3℃ | 6.6℃ | 11.5℃ | 16.1℃ | 18.0℃ | 13.8℃ | 6.4℃ | 0.2℃ | -5.4℃ | 4.1℃ |
| Ice days (high below 0℃) | 12.5 days | 9.7 days | 2.0 days | 0.0 days | 0.0 days | 0.0 days | 0.0 days | 0.0 days | 0.0 days | 0.0 days | 0.2 days | 6.5 days | 30.9 days |
| Precipitation | 38.7mm | 37.5mm | 53.5mm | 75.7mm | 130.8mm | 111.6mm | 163.5mm | 197.5mm | 174.9mm | 113.2mm | 85.7mm | 56.6mm | 1239.2mm |
June to September link to the Hokkaido-wide summer pages. "Year" for max snow depth is the normal for the whole winter.
Temperature in Tomakomai (12 months)
HighMeanLow
Location and nearby places
- Chitoseabout 21 km · 227cm of snow a year
- Eniwa (Shimamatsu)about 34 km · 534cm of snow a year
- Noboribetsuabout 39 km · 454cm of snow a year
- Koganeyu (Jozankei)about 46 km · 808cm of snow a year
Sources
- Japan Meteorological Agency (JMA), Climatological Normals 1991–2020 (in Japanese); Normals for Tomakomai (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)