Frost Dates for Johnstown Cambria Co AP, 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 29
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 21
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 May 5
First Fall Frost October 14

Hard Freeze (28°F / -2°C)

Last Spring Hard Freeze April 17
First Fall Hard Freeze November 2
40.32°N, -78.83°W © OpenStreetMap

Growing Season

175 Days April 29 to October 21

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

10° 30° 50° 70°
26°
High: 33°
Avg: 26°
Low: 19°
Jan
29°
High: 36°
Avg: 29°
Low: 21°
Feb
36°
High: 45°
Avg: 36°
Low: 28°
Mar
48°
High: 58°
Avg: 48°
Low: 38°
Apr
59°
High: 68°
Avg: 59°
Low: 49°
May
66°
High: 75°
Avg: 66°
Low: 57°
Jun
70°
High: 79°
Avg: 70°
Low: 61°
Jul
69°
High: 77°
Avg: 69°
Low: 60°
Aug
62°
High: 71°
Avg: 62°
Low: 53°
Sep
51°
High: 59°
Avg: 51°
Low: 43°
Oct
40°
High: 47°
Avg: 40°
Low: 33°
Nov
31°
High: 38°
Avg: 31°
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" 5.1"
2.2"
2.17"
Jan
2.2"
2.21"
Feb
3.2"
3.24"
Mar
4.3"
4.29"
Apr
4.5"
4.47"
May
5.1"
5.06"
Jun
5.0"
5.02"
Jul
4.6"
4.59"
Aug
3.5"
3.50"
Sep
3.2"
3.24"
Oct
2.8"
2.75"
Nov
2.7"
2.67"
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 52m
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: 7:09 AM – 4:51 PM · 9h 43m
Dec: 7:26 AM – 4:34 PM · 9h 08m
Daylight Longest: 14h 53m · Shortest: 9h 07m

Nearby Stations

Ebensburg Sewage Plt, PA May 17 - October 2 Laurel Summit, PA May 6 - October 12 Laurel Mtn, PA April 26 - October 17 Shawnee Sp, PAMay 4 - October 10 Altoona 7 Sw, PA April 25 - October 20 Altoona 3 W, PA April 25 - October 21

Plan Your Garden with Planter

Now that you know your frost dates, use Planter to plan your veggie garden! Planter is an easy drag-and-drop garden planner with personalized planting schedules.

Try Planter For Free

Available everywhere: iOS, Android, web, and more!

Planter app garden planner preview