Frost Dates for CHRISTCHURCH INTL, New Zealand
Elevation: 33 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.
September 26
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.
May 19
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
October 7
First Fall Frost
May 11
Hard Freeze (−2°C)
Last Spring Hard Freeze
August 24
First Fall Hard Freeze
June 12
Growing Season
235 Days
September 26 to May 19
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 9a
Avg. annual minimum: −7 to −4°C
Köppen Climate
The 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.
Temperature
0°
10°
20°
Avg High
Avg Temp
Avg Low
Temperature table
| Month | Avg High | Avg Temp | Avg Low |
|---|---|---|---|
| January | 22° | 17° | 12° |
| February | 22° | 17° | 12° |
| March | 20° | 15° | 11° |
| April | 17° | 12° | 8° |
| May | 14° | 9° | 5° |
| June | 11° | 6° | 3° |
| July | 10° | 5° | 2° |
| August | 12° | 7° | 3° |
| September | 14° | 9° | 5° |
| October | 16° | 11° | 7° |
| November | 18° | 13° | 8° |
| December | 21° | 15° | 11° |
Precipitation
0 mm
20 mm
40 mm
60 mm
80 mm
Precipitation table
| Month | Precipitation |
|---|---|
| January | 56 |
| February | 41 |
| March | 41 |
| April | 51 |
| May | 51 |
| June | 66 |
| July | 53 |
| August | 48 |
| September | 46 |
| October | 66 |
| November | 58 |
| December | 71 |
Sunrise / Sunset
Daylight
Longest: 15h 14m · Shortest: 8h 46m
Sunrise and sunset table
| Month | Sunrise | Sunset | Daylight |
|---|---|---|---|
| January | 4:33 AM | 7:27 PM | 14h 53m |
| February | 5:08 AM | 6:52 PM | 13h 44m |
| March | 5:49 AM | 6:11 PM | 12h 21m |
| April | 6:36 AM | 5:24 PM | 10h 48m |
| May | 7:15 AM | 4:45 PM | 9h 29m |
| June | 7:37 AM | 4:23 PM | 8h 47m |
| July | 7:28 AM | 4:32 PM | 9h 04m |
| August | 6:54 AM | 5:06 PM | 10h 12m |
| September | 6:08 AM | 5:52 PM | 11h 43m |
| October | 5:23 AM | 6:37 PM | 13h 14m |
| November | 4:43 AM | 7:17 PM | 14h 34m |
| December | 4:23 AM | 7:37 PM | 15h 13m |
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.
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