Frost Dates for Windsor, PA

Based on data from York 3 Ssw Pump Stn weather station, 9 miles away

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 26
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 19
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 2
First Fall Frost October 13

Hard Freeze (28°F)

Last Spring Hard Freeze April 8
First Fall Hard Freeze October 31
39.92°N, -76.58°W © OpenStreetMap

Growing Season

176 Days April 26 to October 19

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

Avg. annual minimum: −5 to 0°F (−21 to −18°C)

Learn more

Köppen Climate iThe Köppen climate classification system categorizes climates based on temperature and precipitation patterns.

Dfa Hot-Summer Continental

Hot summers and cold winters with year-round precipitation. Moderate growing season supports warm-season crops like tomatoes, peppers, and corn. Winter protection extends the harvest.

Köppen climate map

Temperature

20° 40° 60° 80°
31°
High: 41°F
Avg: 31°F
Low: 21°F
Jan
34°
High: 45°F
Avg: 34°F
Low: 23°F
Feb
42°
High: 55°F
Avg: 42°F
Low: 30°F
Mar
54°
High: 67°F
Avg: 54°F
Low: 40°F
Apr
63°
High: 77°F
Avg: 63°F
Low: 50°F
May
71°
High: 84°F
Avg: 71°F
Low: 59°F
Jun
75°
High: 88°F
Avg: 75°F
Low: 63°F
Jul
74°
High: 86°F
Avg: 74°F
Low: 62°F
Aug
67°
High: 80°F
Avg: 67°F
Low: 55°F
Sep
56°
High: 68°F
Avg: 56°F
Low: 43°F
Oct
44°
High: 56°F
Avg: 44°F
Low: 33°F
Nov
36°
High: 45°F
Avg: 36°F
Low: 26°F
Dec
32°F
28°F
Avg High Avg Temp Avg Low Light Frost (32°F) Hard Frost (28°F)

Precipitation

0" 2" 4" 6" 6.9"
4.7"
4.68"
Jan
4.1"
4.12"
Feb
5.2"
5.23"
Mar
4.6"
4.63"
Apr
4.6"
4.62"
May
4.0"
4.04"
Jun
5.5"
5.55"
Jul
6.0"
5.95"
Aug
6.8"
6.76"
Sep
6.9"
6.88"
Oct
5.0"
4.97"
Nov
5.6"
5.62"
Dec

Sunrise / Sunset

4a7a10a1p4p7p10pNoonJanFebMarAprMayJunJulAugSepOctNovDec9.5h10.5h11.5h13h14h15h14.5h13.5h12h11h9.5h9h
Jan: 7:16 AM – 4:44 PM · 9h 28m
Feb: 6:46 AM – 5:14 PM · 10h 29m
Mar: 6:09 AM – 5:51 PM · 11h 41m
Apr: 5:28 AM – 6:32 PM · 13h 04m
May: 4:54 AM – 7:06 PM · 14h 12m
Jun: 4:35 AM – 7:25 PM · 14h 49m
Jul: 4:43 AM – 7:17 PM · 14h 34m
Aug: 5:13 AM – 6:47 PM · 13h 35m
Sep: 5:53 AM – 6:07 PM · 12h 15m
Oct: 6:33 AM – 5:27 PM · 10h 55m
Nov: 7:08 AM – 4:52 PM · 9h 45m
Dec: 7:25 AM – 4:35 PM · 9h 11m
Daylight Longest: 14h 50m · Shortest: 9h 10m

Nearby Stations

York AP, PAApril 27 - October 18 Millers 4 Ne, MD April 19 - October 25 Hanover 4 Sw, PA April 24 - October 20 Safe Harbor Dam, PA April 1 - November 10 Middletown Harrisburg Intl AP, PA April 9 - November 2 Harrisburg Cptl Cy AP, PA April 9 - November 1

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