Frost Dates for BALLYSHANNON (CATHLEENS FALL), Ireland

Elevation: 14 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. March 21
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. November 25

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 March 31
First Fall Frost November 16

Hard Freeze (−2°C)

Last Spring Hard Freeze February 12
First Fall Hard Freeze December 9
54.50°N, 8.18°W © OpenStreetMap

Growing Season

249 Days March 21 to November 25

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

Learn more

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.

Köppen climate map

Temperature

Avg High Avg Temp Avg Low
Temperature table
Average monthly temperatures (°C)
Month Avg High Avg Temp Avg Low
January7°5°3°
February8°5°3°
March9°7°4°
April12°8°5°
May14°11°8°
June16°13°10°
July18°15°12°
August17°15°12°
September16°13°11°
October13°10°8°
November10°8°5°
December8°5°3°

Precipitation

Precipitation table
Average monthly precipitation (millimeters)
MonthPrecipitation
January109
February97
March97
April84
May89
June91
July107
August114
September97
October122
November122
December124

Sunrise / Sunset

Daylight Longest: 16h 60m · Shortest: 7h 00m
Sunrise and sunset table
Sunrise, sunset, and daylight on the 15th of each month (local solar time)
Month Sunrise Sunset Daylight
January8:12 AM3:48 PM7h 35m
February7:17 AM4:43 PM9h 25m
March6:16 AM5:44 PM11h 28m
April5:06 AM6:54 PM13h 48m
May4:06 AM7:54 PM15h 48m
June3:31 AM8:29 PM16h 57m
July3:46 AM8:14 PM16h 28m
August4:40 AM7:20 PM14h 41m
September5:48 AM6:12 PM12h 25m
October6:55 AM5:05 PM10h 10m
November7:57 AM4:03 PM8h 07m
December8:29 AM3:31 PM7h 02m

Nearby Stations

Lough Navar Forest, United Kingdom May 23 - October 3 CONNAUGHT, Ireland April 1 - November 17 MALIN HEAD, Ireland February 18 - December 20 BELMULLET, Ireland February 12 - December 24 GALWAY, Ireland March 20 - November 21 BIRR, Ireland March 29 - November 21

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