Frost Dates for INVERCARGILL AIRPOR, New Zealand
Elevation: 1 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 14
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 27
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
September 26
First Fall Frost
May 17
Hard Freeze (−2°C)
Last Spring Hard Freeze
August 7
First Fall Hard Freeze
June 12
Growing Season
255 Days
September 14 to May 27
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.
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°
5°
10°
15°
20°
Avg High
Avg Temp
Avg Low
Temperature table
| Month | Avg High | Avg Temp | Avg Low |
|---|---|---|---|
| January | 18° | 14° | 11° |
| February | 18° | 14° | 11° |
| March | 16° | 13° | 10° |
| April | 14° | 11° | 8° |
| May | 12° | 9° | 6° |
| June | 9° | 6° | 4° |
| July | 9° | 6° | 3° |
| August | 10° | 7° | 4° |
| September | 12° | 8° | 5° |
| October | 13° | 10° | 7° |
| November | 15° | 11° | 8° |
| December | 17° | 13° | 10° |
Precipitation
0 mm
50 mm
100 mm
Precipitation table
| Month | Precipitation |
|---|---|
| January | 109 |
| February | 81 |
| March | 84 |
| April | 79 |
| May | 86 |
| June | 79 |
| July | 76 |
| August | 79 |
| September | 76 |
| October | 107 |
| November | 91 |
| December | 97 |
Sunrise / Sunset
Daylight
Longest: 15h 37m · Shortest: 8h 23m
Sunrise and sunset table
| Month | Sunrise | Sunset | Daylight |
|---|---|---|---|
| January | 4:23 AM | 7:37 PM | 15h 13m |
| February | 5:03 AM | 6:57 PM | 13h 55m |
| March | 5:48 AM | 6:12 PM | 12h 24m |
| April | 6:40 AM | 5:20 PM | 10h 40m |
| May | 7:24 AM | 4:36 PM | 9h 12m |
| June | 7:48 AM | 4:12 PM | 8h 25m |
| July | 7:38 AM | 4:22 PM | 8h 44m |
| August | 6:60 AM | 5:00 PM | 10h 01m |
| September | 6:09 AM | 5:51 PM | 11h 41m |
| October | 5:19 AM | 6:41 PM | 13h 22m |
| November | 4:34 AM | 7:26 PM | 14h 51m |
| December | 4:12 AM | 7:48 PM | 15h 36m |
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