Frost Dates for OITA, Japan
Elevation: 8 m
Frost Dates
Last Spring Frost (50%) A 50% chance that the last spring frost has already passed by this date. Most gardeners use this as their primary planting guide.
February 7
First Fall Frost (50%) A 50% chance that the first fall frost has occurred by this date. Plan to harvest or protect tender plants before this date.
December 20
30% Probability
Only a 30% chance of frost remaining by this date. Use these dates for a safer planting window, especially for tender plants sensitive to cold.
Last Spring Frost
February 14
First Fall Frost
December 15
Growing Season
317 Days
February 7 to December 20
USDA Hardiness Zone
Hardiness zones indicate which perennial plants can survive winter in your area. For annual vegetables, frost dates and growing season length matter more than hardiness zone.Zone 9b
Avg. annual minimum: −4 to −1°C
Köppen Climate
The Köppen climate classification system categorizes climates based on temperature and precipitation patterns.
Cfa
Humid Subtropical
Hot, humid summers and mild winters with rain year-round. Long growing seasons support a wide variety of vegetables, fruits, and ornamentals. The most common climate in the eastern US.
Temperature
0°
10°
20°
30°
Avg High
Avg Temp
Avg Low
Temperature table
| Month | Avg High | Avg Temp | Avg Low |
|---|---|---|---|
| January | 9° | 6° | 3° |
| February | 11° | 7° | 4° |
| March | 14° | 10° | 6° |
| April | 19° | 14° | 10° |
| May | 23° | 19° | 15° |
| June | 26° | 22° | 20° |
| July | 30° | 26° | 24° |
| August | 30° | 27° | 24° |
| September | 27° | 24° | 21° |
| October | 22° | 18° | 16° |
| November | 17° | 13° | 10° |
| December | 12° | 8° | 5° |
Precipitation
0 mm
75 mm
150 mm
225 mm
300 mm
Precipitation table
| Month | Precipitation |
|---|---|
| January | 53 |
| February | 71 |
| March | 102 |
| April | 117 |
| May | 132 |
| June | 287 |
| July | 208 |
| August | 188 |
| September | 213 |
| October | 132 |
| November | 76 |
| December | 58 |
Sunrise / Sunset
Daylight
Longest: 14h 12m · Shortest: 9h 48m
Sunrise and sunset table
| Month | Sunrise | Sunset | Daylight |
|---|---|---|---|
| January | 6:59 AM | 5:01 PM | 10h 02m |
| February | 6:36 AM | 5:24 PM | 10h 49m |
| March | 6:07 AM | 5:53 PM | 11h 45m |
| April | 5:35 AM | 6:25 PM | 12h 50m |
| May | 5:08 AM | 6:52 PM | 13h 43m |
| June | 4:54 AM | 7:06 PM | 14h 11m |
| July | 5:00 AM | 6:60 PM | 13h 60m |
| August | 5:23 AM | 6:37 PM | 13h 14m |
| September | 5:54 AM | 6:06 PM | 12h 12m |
| October | 6:25 AM | 5:35 PM | 11h 09m |
| November | 6:53 AM | 5:07 PM | 10h 15m |
| December | 7:06 AM | 4:54 PM | 9h 49m |
Nearby Stations
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