Frost Dates for Carlisle Wtp, PA

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. April 23
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. October 18
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 April 30
First Fall Frost October 11

Hard Freeze (28°F / -2°C)

Last Spring Hard Freeze April 10
First Fall Hard Freeze November 1
40.23°N, -77.19°W © OpenStreetMap

Growing Season

178 Days April 23 to October 18

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 6b

Learn more

Temperature

20° 40° 60° 80°
29°
High: 38°
Avg: 29°
Low: 21°
Jan
31°
High: 41°
Avg: 31°
Low: 22°
Feb
39°
High: 50°
Avg: 39°
Low: 29°
Mar
51°
High: 63°
Avg: 51°
Low: 39°
Apr
61°
High: 73°
Avg: 61°
Low: 49°
May
70°
High: 81°
Avg: 70°
Low: 59°
Jun
74°
High: 86°
Avg: 74°
Low: 63°
Jul
72°
High: 84°
Avg: 72°
Low: 61°
Aug
65°
High: 77°
Avg: 65°
Low: 53°
Sep
54°
High: 66°
Avg: 54°
Low: 42°
Oct
43°
High: 54°
Avg: 43°
Low: 32°
Nov
34°
High: 42°
Avg: 34°
Low: 25°
Dec
32°F
28°F
Avg High Avg Temp Avg Low Light Frost (32°F) Hard Frost (28°F)

Precipitation

0" 2" 4" 6" 7.7"
6.2"
6.17"
Jan
5.1"
5.08"
Feb
5.3"
5.35"
Mar
5.8"
5.75"
Apr
6.7"
6.65"
May
5.9"
5.91"
Jun
7.4"
7.42"
Jul
5.5"
5.51"
Aug
5.8"
5.82"
Sep
6.1"
6.14"
Oct
6.4"
6.44"
Nov
7.7"
7.67"
Dec

Sunrise / Sunset

4a7a10a1p4p7p10pNoonJanFebMarAprMayJunJulAugSepOctNovDec9h10h12h13h14h15h15h14h12h11h10h9h
Jan: 7:17 AM – 4:43 PM · 9h 26m
Feb: 6:46 AM – 5:14 PM · 10h 28m
Mar: 6:10 AM – 5:50 PM · 11h 41m
Apr: 5:28 AM – 6:32 PM · 13h 05m
May: 4:53 AM – 7:07 PM · 14h 14m
Jun: 4:34 AM – 7:26 PM · 14h 51m
Jul: 4:42 AM – 7:18 PM · 14h 36m
Aug: 5:12 AM – 6:48 PM · 13h 36m
Sep: 5:52 AM – 6:08 PM · 12h 15m
Oct: 6:33 AM – 5:27 PM · 10h 54m
Nov: 7:08 AM – 4:52 PM · 9h 43m
Dec: 7:26 AM – 4:34 PM · 9h 09m
Daylight Longest: 14h 52m · Shortest: 9h 08m

Nearby Stations

Bloserville 1 N, PA April 18 - October 26 Harrisburg 1 Ne, PA April 15 - October 23 Harrisburg Cptl Cy AP, PA April 9 - November 1 Biglerville, PA April 15 - October 27 Shippensburg, PA April 19 - October 24 Middletown Harrisburg Intl AP, PA April 9 - November 2

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