Frost Dates for AJIRO, Japan

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. February 25
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 24
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 4
First Fall Frost December 21
35.05°N, 139.10°W © OpenStreetMap

Growing Season

303 Days February 25 to December 24

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°
6°
High: 9°C
Avg: 6°C
Low: 3°C
Jan
6°
High: 10°C
Avg: 6°C
Low: 3°C
Feb
9°
High: 13°C
Avg: 9°C
Low: 6°C
Mar
14°
High: 17°C
Avg: 14°C
Low: 10°C
Apr
18°
High: 21°C
Avg: 18°C
Low: 15°C
May
21°
High: 24°C
Avg: 21°C
Low: 19°C
Jun
25°
High: 28°C
Avg: 25°C
Low: 23°C
Jul
26°
High: 29°C
Avg: 26°C
Low: 24°C
Aug
23°
High: 26°C
Avg: 23°C
Low: 21°C
Sep
18°
High: 21°C
Avg: 18°C
Low: 16°C
Oct
13°
High: 16°C
Avg: 13°C
Low: 11°C
Nov
9°
High: 12°C
Avg: 9°C
Low: 6°C
Dec
Avg High Avg Temp Avg Low

Precipitation

0 mm 75 mm 150 mm 225 mm
94 mm
94.0 mm
Jan
107 mm
106.7 mm
Feb
178 mm
177.8 mm
Mar
170 mm
170.2 mm
Apr
180 mm
180.3 mm
May
249 mm
248.9 mm
Jun
234 mm
233.7 mm
Jul
155 mm
154.9 mm
Aug
241 mm
241.3 mm
Sep
246 mm
246.4 mm
Oct
132 mm
132.1 mm
Nov
79 mm
78.7 mm
Dec

Sunrise / Sunset

4a7a10a1p4p7p10pNoonJanFebMarAprMayJunJulAugSepOctNovDec10h10.5h11.5h13h14h14.5h14h13.5h12h11h10h9.5h
Jan: 7:03 AM – 4:57 PM · 9h 53m
Feb: 6:38 AM – 5:22 PM · 10h 44m
Mar: 6:08 AM – 5:52 PM · 11h 44m
Apr: 5:33 AM – 6:27 PM · 12h 53m
May: 5:05 AM – 6:55 PM · 13h 50m
Jun: 4:50 AM – 7:10 PM · 14h 21m
Jul: 4:56 AM – 7:04 PM · 14h 08m
Aug: 5:20 AM – 6:40 PM · 13h 19m
Sep: 5:54 AM – 6:06 PM · 12h 12m
Oct: 6:27 AM – 5:33 PM · 11h 05m
Nov: 6:56 AM – 5:04 PM · 10h 07m
Dec: 7:10 AM – 4:50 PM · 9h 39m
Daylight Longest: 14h 22m · Shortest: 9h 38m

Nearby Stations

MISHIMA, Japan February 23 - December 24 OSHIMA, Japan ATSUGI, Japan March 11 - December 17 IROZAKI, Japan YOKOSUKA, Japan OPPAMA, Japan

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