Frost Dates for CHRISTCHURCH INTL, New Zealand

Elevation: 33 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. September 26
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. May 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 October 7
First Fall Frost May 11

Hard Freeze (−2°C)

Last Spring Hard Freeze August 24
First Fall Hard Freeze June 12
-43.49°N, 172.53°W © OpenStreetMap

Growing Season

235 Days September 26 to May 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 9a

Avg. annual minimum: −7 to −4°C

Learn more

Köppen Climate iThe Köppen climate classification system categorizes climates based on temperature and precipitation patterns.

Cfb Oceanic (Marine West Coast)

Mild year-round with cool summers and wet winters. Excellent for cool-season crops like brassicas, peas, and root vegetables. Extended harvest seasons but summer heat-loving crops may struggle.

Köppen climate map

Temperature

0° 10° 20°
17°
High: 22°C
Avg: 17°C
Low: 12°C
Jan
17°
High: 22°C
Avg: 17°C
Low: 12°C
Feb
15°
High: 20°C
Avg: 15°C
Low: 11°C
Mar
12°
High: 17°C
Avg: 12°C
Low: 8°C
Apr
9°
High: 14°C
Avg: 9°C
Low: 5°C
May
6°
High: 11°C
Avg: 6°C
Low: 3°C
Jun
5°
High: 10°C
Avg: 5°C
Low: 2°C
Jul
7°
High: 12°C
Avg: 7°C
Low: 3°C
Aug
9°
High: 14°C
Avg: 9°C
Low: 5°C
Sep
11°
High: 16°C
Avg: 11°C
Low: 7°C
Oct
13°
High: 18°C
Avg: 13°C
Low: 8°C
Nov
15°
High: 21°C
Avg: 15°C
Low: 11°C
Dec
Avg High Avg Temp Avg Low

Precipitation

0 mm 20 mm 40 mm 60 mm 80 mm
56 mm
55.9 mm
Jan
41 mm
40.6 mm
Feb
41 mm
40.6 mm
Mar
51 mm
50.8 mm
Apr
51 mm
50.8 mm
May
66 mm
66.0 mm
Jun
53 mm
53.3 mm
Jul
48 mm
48.3 mm
Aug
46 mm
45.7 mm
Sep
66 mm
66.0 mm
Oct
58 mm
58.4 mm
Nov
71 mm
71.1 mm
Dec

Sunrise / Sunset

4a7a10a1p4p7p10pNoonJanFebMarAprMayJunJulAugSepOctNovDec15h13.5h12.5h11h9.5h9h9h10h11.5h13h14.5h15h
Jan: 4:33 AM – 7:27 PM · 14h 53m
Feb: 5:08 AM – 6:52 PM · 13h 44m
Mar: 5:49 AM – 6:11 PM · 12h 21m
Apr: 6:36 AM – 5:24 PM · 10h 48m
May: 7:15 AM – 4:45 PM · 9h 29m
Jun: 7:37 AM – 4:23 PM · 8h 47m
Jul: 7:28 AM – 4:32 PM · 9h 04m
Aug: 6:54 AM – 5:06 PM · 10h 12m
Sep: 6:08 AM – 5:52 PM · 11h 43m
Oct: 5:23 AM – 6:37 PM · 13h 14m
Nov: 4:43 AM – 7:17 PM · 14h 34m
Dec: 4:23 AM – 7:37 PM · 15h 13m
Daylight Longest: 15h 14m · Shortest: 8h 46m

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