Frost Dates for ONAHAMA, Japan

Elevation: 3 m

Frost Dates

Last Spring Frost (50%) iA 50% chance that the last spring frost has already passed by this date. Most gardeners use this as their primary planting guide. March 5
First Fall Frost (50%) iA 50% chance that the first fall frost has occurred by this date. Plan to harvest or protect tender plants before this date. December 19
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

30% Probability iOnly 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 March 11
First Fall Frost December 15
36.95°N, 140.90°W © OpenStreetMap

Growing Season

289 Days March 5 to December 19

USDA Hardiness Zone iHardiness 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

Learn more

Köppen Climate iThe 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.

Köppen climate map

Temperature

0° 10° 20° 30°
4°
High: 7°C
Avg: 4°C
Low: 2°C
Jan
4°
High: 8°C
Avg: 4°C
Low: 2°C
Feb
7°
High: 11°C
Avg: 7°C
Low: 4°C
Mar
12°
High: 15°C
Avg: 12°C
Low: 9°C
Apr
16°
High: 19°C
Avg: 16°C
Low: 13°C
May
19°
High: 22°C
Avg: 19°C
Low: 17°C
Jun
23°
High: 25°C
Avg: 23°C
Low: 21°C
Jul
24°
High: 27°C
Avg: 24°C
Low: 22°C
Aug
22°
High: 24°C
Avg: 22°C
Low: 20°C
Sep
17°
High: 19°C
Avg: 17°C
Low: 15°C
Oct
12°
High: 15°C
Avg: 12°C
Low: 9°C
Nov
7°
High: 10°C
Avg: 7°C
Low: 4°C
Dec
Avg High Avg Temp Avg Low

Precipitation

0 mm 50 mm 100 mm 150 mm 200 mm
66 mm
66.0 mm
Jan
66 mm
66.0 mm
Feb
112 mm
111.8 mm
Mar
124 mm
124.5 mm
Apr
135 mm
134.6 mm
May
145 mm
144.8 mm
Jun
185 mm
185.4 mm
Jul
147 mm
147.3 mm
Aug
193 mm
193.0 mm
Sep
183 mm
182.9 mm
Oct
94 mm
94.0 mm
Nov
64 mm
63.5 mm
Dec

Sunrise / Sunset

4a7a10a1p4p7p10pNoonJanFebMarAprMayJunJulAugSepOctNovDec9.5h10.5h11.5h13h14h14.5h14.5h13.5h12h11h10h9.5h
Jan: 7:08 AM – 4:52 PM · 9h 44m
Feb: 6:41 AM – 5:19 PM · 10h 38m
Mar: 6:08 AM – 5:52 PM · 11h 43m
Apr: 5:31 AM – 6:29 PM · 12h 57m
May: 5:01 AM – 6:59 PM · 13h 59m
Jun: 4:44 AM – 7:16 PM · 14h 31m
Jul: 4:51 AM – 7:09 PM · 14h 18m
Aug: 5:17 AM – 6:43 PM · 13h 25m
Sep: 5:53 AM – 6:07 PM · 12h 13m
Oct: 6:29 AM – 5:31 PM · 11h 02m
Nov: 7:01 AM – 4:59 PM · 9h 59m
Dec: 7:16 AM – 4:44 PM · 9h 29m
Daylight Longest: 14h 32m · Shortest: 9h 28m

Nearby Stations

FUKUSHIMA ARPT, Japan April 8 - November 18 SHIRAKAWA, Japan April 7 - November 19 MITO, JapanMarch 11 - December 16 UTSUNOMIYA, Japan April 4 - November 24 WAKAMATSU, Japan April 10 - November 26 NIKKO, JapanApril 30 - October 31

Plan Your Garden with Planter

Now that you know your frost dates, use Planter to plan your veggie garden! Planter is an easy drag-and-drop garden planner with personalized planting schedules.

Try Planter For Free

Available everywhere: iOS, Android, web, and more!

Planter app garden planner preview