Frost Dates for Franklin, PA

Elevation: 309 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. May 2
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. October 23

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 May 9
First Fall Frost October 17

Hard Freeze (28°F)

Last Spring Hard Freeze April 21
First Fall Hard Freeze November 3
41.40°N, 79.83°W © OpenStreetMap

Growing Season

174 Days May 2 to October 23

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 6b

Avg. annual minimum: −5 to 0°F

Learn more

Köppen Climate

The Köppen climate classification system categorizes climates based on temperature and precipitation patterns.
Dfb Warm-Summer Continental

Warm summers and cold, snowy winters. A shorter growing season than hot-summer continental. Hardy vegetables, root crops, and cool-season greens do well. Season extension is valuable.

Köppen climate map

Temperature

Avg High Avg Temp Avg Low Light Frost (32°F) Hard Frost (28°F)
Temperature table
Average monthly temperatures (°F)
Month Avg High Avg Temp Avg Low
January34°26°18°
February36°28°19°
March46°36°25°
April60°48°35°
May71°59°46°
June79°67°56°
July83°71°60°
August81°70°58°
September74°63°52°
October61°51°41°
November49°40°32°
December38°31°24°

Precipitation

Precipitation table
Average monthly precipitation (inches)
MonthPrecipitation
January2.7
February2.5
March3.9
April4.9
May4.7
June5.3
July6.8
August5.8
September4.8
October4.0
November3.5
December2.8

Sunrise / Sunset

Daylight Eastern Time (ET) Longest: 14h 60m · Shortest: 9h 00m
Sunrise and sunset table
Sunrise, sunset, and daylight on the 15th of each month (Eastern Time (ET))
Month Sunrise Sunset Daylight
January7:49 AM5:08 PM9h 19m
February7:22 AM5:46 PM10h 24m
March7:39 AM7:19 PM11h 40m
April6:46 AM7:53 PM13h 07m
May6:06 AM8:25 PM14h 20m
June5:50 AM8:49 PM14h 59m
July6:04 AM8:46 PM14h 43m
August6:34 AM8:13 PM13h 40m
September7:06 AM7:22 PM12h 16m
October7:39 AM6:30 PM10h 51m
November7:16 AM4:53 PM9h 37m
December7:45 AM4:46 PM9h 01m

Nearby Stations

Titusville Wtr Wks, PA May 12 - October 10 Tionesta 2 Se Lake, PA May 1 - October 25 Mercer, PAMay 15 - October 3 Clarion 3 Sw, PA May 9 - October 11 Port Meadville AP, PA April 30 - October 23 Slippery Rock 1 Ssw, PA May 7 - October 14

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