Climate averages 1991–2020
Hannō weather
in February.
A cool, moderately wet month: the 11th warmest and the 2nd driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
February is a cool month in Hannō: daytime highs average 8.5°C and nights cool to about -1.4°C. By daytime temperature it is the 11th warmest of the 12 months.
Expect about 76 mm of rain on roughly 10 days, which makes February a moderately wet month (the 2nd driest of the 12 months). Daylight, from sunrise to sunset, lasts about 10 h 51 min on an average February day.
The nearest other city in this atlas is Iruma (6 km away). In February its highs average 8.1°C, about as warm as Hannō, with 76 mm of rain.
Among the 303 cities listed in Japan, Hannō ranks joint 175th of 303 for the warmest February highs and joint 179th of 303 for the driest February (rainfall, lowest first). The mean February high of those 303 cities is 7.9°C; Hannō is 0.6°C warmer than that mean.
From February to March, average highs rise by 3.7°C to 12.2°C, and monthly rainfall rises from 76 mm to 139 mm.
The annual picture
February in context
Monthly rainfall
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
Hannō climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 7.5°C-2.0°C | -2.0°C | 77 | 8.5 | 10.010 h |
| February, selected | 8.5°C-1.4°C | -1.4°C | 76 | 9.7 | 10.911 h |
| March | 12.2°C2.0°C | 2.0°C | 139 | 15.2 | 11.912 h |
| April | 17.4°C7.3°C | 7.3°C | 146 | 14.6 | 13.113 h |
| May | 21.9°C12.8°C | 12.8°C | 166 | 15.6 | 14.014 h |
| June | 24.5°C17.3°C | 17.3°C | 222 | 19.5 | 14.515 h |
| July | 28.1°C21.5°C | 21.5°C | 243 | 21.8 | 14.314 h |
| August | 29.3°C22.7°C | 22.7°C | 205 | 21.0 | 13.514 h |
| September | 25.5°C19.2°C | 19.2°C | 249 | 18.2 | 12.412 h |
| October | 20.1°C13.2°C | 13.2°C | 242 | 16.2 | 11.311 h |
| November | 15.1°C6.9°C | 6.9°C | 101 | 11.3 | 10.310 h |
| December | 10.1°C1.2°C | 1.2°C | 68 | 8.3 | 9.810 h |
Rainfall is the average of the 30 separate monthly totals. A rain 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
February in nearby cities
- Iruma in FebruaryJapan · 6 kmHigh 8.1°C · Low -2.0°C · 76 mm rain
- Sayama in FebruaryJapan · 8 kmHigh 8.5°C · Low -1.8°C · 66 mm rain
- Ōme in FebruaryJapan · 10 kmHigh 8.2°C · Low -1.6°C · 76 mm rain
- Sakado in FebruaryJapan · 13 kmHigh 8.8°C · Low -1.1°C · 54 mm rain
- Tokorozawa in FebruaryJapan · 15 kmHigh 8.3°C · Low -1.7°C · 66 mm rain
- Akiruno in FebruaryJapan · 16 kmHigh 8.5°C · Low -1.2°C · 76 mm rain
- Kawagoe in FebruaryJapan · 16 kmHigh 8.7°C · Low -1.6°C · 54 mm rain
- Hino in FebruaryJapan · 21 kmHigh 8.5°C · Low -1.4°C · 66 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 Hannō) is explained once on the Hannō year overview and on the Sources, method and limits page.
Hachiōji, Iruma and Ōme lie in the same rainfall cell, so their rainfall figures are identical to these; temperatures differ because they come from smaller 0.1° cells.