Frost Dates for Westfield, MD

Based on data from Cylburn weather station, 5 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 2
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. November 7
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 6
First Fall Frost November 2

Hard Freeze (28°F)

Last Spring Hard Freeze March 22
First Fall Hard Freeze November 20
39.36°N, -76.55°W © OpenStreetMap

Growing Season

219 Days April 2 to November 7

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 7a

Avg. annual minimum: 0 to 5°F (−18 to −15°C)

Learn more

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

Cfa Humid Subtropical

Hot, humid summers and mild winters with rain year-round. Long growing seasons support a wide variety of vegetables, fruits, and ornamentals. The most common climate in the eastern US.

Köppen climate map

Temperature

20° 40° 60° 80°
35°
High: 42°F
Avg: 35°F
Low: 27°F
Jan
37°
High: 46°F
Avg: 37°F
Low: 28°F
Feb
44°
High: 54°F
Avg: 44°F
Low: 34°F
Mar
55°
High: 66°F
Avg: 55°F
Low: 45°F
Apr
64°
High: 73°F
Avg: 64°F
Low: 55°F
May
73°
High: 82°F
Avg: 73°F
Low: 64°F
Jun
78°
High: 87°F
Avg: 78°F
Low: 69°F
Jul
76°
High: 84°F
Avg: 76°F
Low: 67°F
Aug
68°
High: 77°F
Avg: 68°F
Low: 60°F
Sep
57°
High: 66°F
Avg: 57°F
Low: 49°F
Oct
48°
High: 56°F
Avg: 48°F
Low: 39°F
Nov
39°
High: 46°F
Avg: 39°F
Low: 32°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" 7.2"
4.4"
4.37"
Jan
3.7"
3.74"
Feb
4.5"
4.49"
Mar
4.0"
4.04"
Apr
4.7"
4.66"
May
4.9"
4.89"
Jun
6.7"
6.71"
Jul
7.2"
7.21"
Aug
5.1"
5.10"
Sep
5.1"
5.12"
Oct
5.3"
5.31"
Nov
6.0"
5.99"
Dec

Sunrise / Sunset

4a7a10a1p4p7p10pNoonJanFebMarAprMayJunJulAugSepOctNovDec9.5h10.5h11.5h13h14h15h14.5h13.5h12h11h10h9h
Jan: 7:14 AM – 4:46 PM · 9h 31m
Feb: 6:45 AM – 5:15 PM · 10h 31m
Mar: 6:09 AM – 5:51 PM · 11h 41m
Apr: 5:29 AM – 6:31 PM · 13h 03m
May: 4:55 AM – 7:05 PM · 14h 10m
Jun: 4:37 AM – 7:23 PM · 14h 46m
Jul: 4:45 AM – 7:15 PM · 14h 31m
Aug: 5:14 AM – 6:46 PM · 13h 33m
Sep: 5:53 AM – 6:07 PM · 12h 15m
Oct: 6:32 AM – 5:28 PM · 10h 56m
Nov: 7:06 AM – 4:54 PM · 9h 48m
Dec: 7:23 AM – 4:37 PM · 9h 14m
Daylight Longest: 14h 47m · Shortest: 9h 13m

Nearby Stations

Md Sci Ctr Baltimore, MD March 24 - November 21 Baltimore Wash Intl AP, MD April 10 - October 31 Laurel 3 W, MD April 5 - November 9 Annapolis Police Brks, MD March 27 - November 13 Millers 4 Ne, MD April 19 - October 25 Beltsville, MD April 10 - November 1

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