Climate averages 1991–2020
Hirosaki weather
in December.
A cold, wet month: the 10th warmest and the 6th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
December is a cold month in Hirosaki: daytime highs average 2.3°C and nights cool to about -4.2°C. By daytime temperature it is the 10th warmest of the 12 months.
Expect about 106 mm of rain on roughly 18 days, which makes December a wet month (the 6th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 9 h 20 min on an average December day.
The nearest other city in this atlas is Aomori (33 km away). In December its highs average 2.6°C, about as warm as Hirosaki, with 82 mm of rain.
Among the 303 cities listed in Japan, Hirosaki ranks joint 289th of 303 for the warmest December highs and 266th of 303 for the driest December (rainfall, lowest first). The mean December high of those 303 cities is 9.5°C; Hirosaki is 7.2°C cooler than that mean.
From December to January, average highs fall by 2.6°C to -0.3°C, and monthly precipitation falls from 106 mm to 82 mm.
The annual picture
December in context
Monthly precipitation
Average total · mmAverages from hourly ERA5 reanalysis data. Actual weather varies from year to year. How these numbers are calculated
Every month, side by side
Hirosaki climate table
| Month | Average highHigh / low | Average low | Precipitation mm/month | Wet days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | -0.3°C-6.6°C | -6.6°C | 82 | 17.0 | 9.610 h |
| February | 0.7°C-6.1°C | -6.1°C | 81 | 15.7 | 10.611 h |
| March | 4.4°C-3.6°C | -3.6°C | 101 | 16.7 | 11.912 h |
| April | 12.0°C1.7°C | 1.7°C | 98 | 13.7 | 13.313 h |
| May | 18.7°C8.0°C | 8.0°C | 104 | 13.1 | 14.414 h |
| June | 22.7°C13.2°C | 13.2°C | 109 | 13.1 | 15.015 h |
| July | 25.6°C18.0°C | 18.0°C | 163 | 16.4 | 14.815 h |
| August | 26.7°C19.1°C | 19.1°C | 176 | 16.0 | 13.814 h |
| September | 22.7°C14.9°C | 14.9°C | 154 | 14.2 | 12.513 h |
| October | 16.4°C8.1°C | 8.1°C | 129 | 13.8 | 11.211 h |
| November | 9.2°C1.9°C | 1.9°C | 112 | 16.2 | 10.010 h |
| December, selected | 2.3°C-4.2°C | -4.2°C | 106 | 18.0 | 9.39 h |
Precipitation (rain or snow, as water) is the average of the 30 separate monthly totals. A wet day is a local calendar day with at least 1 mm of precipitation. Daylight is the calculated sunrise-to-sunset length, not measured sunshine.
Compare places
December in nearby cities
- Aomori in DecemberJapan · 33 kmHigh 2.6°C · Low -3.4°C · 82 mm rain
- Hachinohe in DecemberJapan · 87 kmHigh 3.9°C · Low -2.5°C · 50 mm rain
- Akita in DecemberJapan · 102 kmHigh 4.6°C · Low 0.3°C · 199 mm rain
- Morioka in DecemberJapan · 115 kmHigh 2.3°C · Low -4.5°C · 77 mm rain
- Daisen in DecemberJapan · 128 kmHigh 3.7°C · Low -2.7°C · 130 mm rain
- Hakodate in DecemberJapan · 133 kmHigh 2.1°C · Low -2.2°C · 70 mm rain
- Yurihonjō in DecemberJapan · 138 kmHigh 4.9°C · Low 0.4°C · 250 mm rain
- Yokote in DecemberJapan · 142 kmHigh 3.6°C · Low -2.9°C · 133 mm rain
Read the numbers correctly
Climate, not a promise.
These patterns help compare months. They cannot tell you the weather on a specific day of your trip.
Sources, method and limitsHow these numbers are made (what the highs, lows and rain days mean, the sources and the model cell used for Hirosaki) is explained once on the Hirosaki year overview and on the Sources, method and limits page.