Frost Dates for Mary'S Harbour, NL
Elevation: 12 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.
June 4
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.
September 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
June 9
First Fall Frost
September 22
Hard Freeze (−2°C)
Last Spring Hard Freeze
May 17
First Fall Hard Freeze
October 13
Growing Season
115 Days
June 4 to September 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 5a
Avg. annual minimum: −29 to −26°C
Köppen Climate
The Köppen climate classification system categorizes climates based on temperature and precipitation patterns.
Dfc
Subarctic
Short, cool summers and long, very cold winters. Growing seasons of 3–4 months require fast-maturing varieties. Root vegetables, potatoes, and cold-hardy greens are the most reliable.
Temperature
-20°
-10°
0°
10°
20°
Avg High
Avg Temp
Avg Low
Light Frost (0°C)
Hard Frost (−2°C)
Temperature table
| Month | Avg High | Avg Temp | Avg Low |
|---|---|---|---|
| January | -6° | -11° | -16° |
| February | -5° | -11° | -16° |
| March | -2° | -7° | -11° |
| April | 3° | -1° | -4° |
| May | 9° | 4° | 0° |
| June | 15° | 10° | 4° |
| July | 19° | 14° | 9° |
| August | 19° | 14° | 9° |
| September | 15° | 11° | 6° |
| October | 8° | 4° | 1° |
| November | 3° | -1° | -5° |
| December | -3° | -7° | -11° |
Precipitation
0 mm
30 mm
60 mm
90 mm
Precipitation table
| Month | Precipitation |
|---|---|
| January | 36 |
| February | 43 |
| March | 33 |
| April | 43 |
| May | 61 |
| June | 61 |
| July | 79 |
| August | 58 |
| September | 74 |
| October | 99 |
| November | 84 |
| December | 58 |
Sunrise / Sunset
Daylight
Longest: 16h 33m · Shortest: 7h 27m
Sunrise and sunset table
| Month | Sunrise | Sunset | Daylight |
|---|---|---|---|
| January | 8:01 AM | 3:59 PM | 7h 58m |
| February | 7:11 AM | 4:49 PM | 9h 38m |
| March | 6:15 AM | 5:45 PM | 11h 31m |
| April | 5:10 AM | 6:50 PM | 13h 39m |
| May | 4:16 AM | 7:44 PM | 15h 29m |
| June | 3:44 AM | 8:16 PM | 16h 31m |
| July | 3:57 AM | 8:03 PM | 16h 05m |
| August | 4:46 AM | 7:14 PM | 14h 28m |
| September | 5:49 AM | 6:11 PM | 12h 23m |
| October | 6:51 AM | 5:09 PM | 10h 19m |
| November | 7:47 AM | 4:13 PM | 8h 26m |
| December | 8:16 AM | 3:44 PM | 7h 29m |
Nearby Stations
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