Frost Dates for VALENTIA OBSERVATORY, Ireland

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. February 17
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. December 14
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 March 1
First Fall Frost December 8
51.94°N, -10.22°W © OpenStreetMap

Growing Season

301 Days February 17 to December 14

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 9b

Learn more

Temperature

40° 50° 60° 70°
44°
High: 47°
Avg: 44°
Low: 41°
Jan
44°
High: 47°
Avg: 44°
Low: 41°
Feb
45°
High: 49°
Avg: 45°
Low: 41°
Mar
47°
High: 52°
Avg: 47°
Low: 43°
Apr
51°
High: 56°
Avg: 51°
Low: 47°
May
55°
High: 59°
Avg: 55°
Low: 51°
Jun
58°
High: 61°
Avg: 58°
Low: 54°
Jul
58°
High: 61°
Avg: 58°
Low: 55°
Aug
56°
High: 60°
Avg: 56°
Low: 53°
Sep
52°
High: 55°
Avg: 52°
Low: 49°
Oct
48°
High: 50°
Avg: 48°
Low: 45°
Nov
45°
High: 48°
Avg: 45°
Low: 42°
Dec
Avg High Avg Temp Avg Low

Precipitation

0" 2" 4" 6" 6.2"
5.8"
5.80"
Jan
4.5"
4.50"
Feb
4.0"
4.00"
Mar
3.9"
3.90"
Apr
3.8"
3.80"
May
3.5"
3.50"
Jun
3.7"
3.70"
Jul
4.2"
4.20"
Aug
4.1"
4.10"
Sep
5.1"
5.10"
Oct
6.1"
6.10"
Nov
6.2"
6.20"
Dec

Sunrise / Sunset

4a7a10a1p4p7p10pNoonJanFebMarAprMayJunJulAugSepOctNovDec8h10h12h14h15h16h16h14h12h10h8h8h
Jan: 7:59 AM – 4:01 PM · 8h 02m
Feb: 7:10 AM – 4:50 PM · 9h 40m
Mar: 6:14 AM – 5:46 PM · 11h 31m
Apr: 5:11 AM – 6:49 PM · 13h 38m
May: 4:17 AM – 7:43 PM · 15h 26m
Jun: 3:46 AM – 8:14 PM · 16h 27m
Jul: 3:59 AM – 8:01 PM · 16h 02m
Aug: 4:47 AM – 7:13 PM · 14h 26m
Sep: 5:49 AM – 6:11 PM · 12h 23m
Oct: 6:50 AM – 5:10 PM · 10h 20m
Nov: 7:45 AM – 4:15 PM · 8h 29m
Dec: 8:14 AM – 3:46 PM · 7h 33m
Daylight Longest: 16h 29m · Shortest: 7h 31m

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