Frost Dates for Ten Hills, MD

Based on data from Md Sci Ctr Baltimore 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. March 24
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 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 March 29
First Fall Frost November 15

Hard Freeze (28°F)

Last Spring Hard Freeze March 11
First Fall Hard Freeze December 5
39.28°N, -76.70°W © OpenStreetMap

Growing Season

242 Days March 24 to November 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 8a

Avg. annual minimum: 10 to 15°F (−12 to −9°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

30° 50° 70° 90°
37°
High: 44°F
Avg: 37°F
Low: 30°F
Jan
39°
High: 47°F
Avg: 39°F
Low: 32°F
Feb
47°
High: 55°F
Avg: 47°F
Low: 39°F
Mar
58°
High: 67°F
Avg: 58°F
Low: 48°F
Apr
67°
High: 76°F
Avg: 67°F
Low: 58°F
May
77°
High: 85°F
Avg: 77°F
Low: 68°F
Jun
82°
High: 90°F
Avg: 82°F
Low: 73°F
Jul
79°
High: 87°F
Avg: 79°F
Low: 71°F
Aug
73°
High: 80°F
Avg: 73°F
Low: 65°F
Sep
61°
High: 69°F
Avg: 61°F
Low: 53°F
Oct
50°
High: 58°F
Avg: 50°F
Low: 43°F
Nov
41°
High: 48°F
Avg: 41°F
Low: 35°F
Dec
32°F
Avg High Avg Temp Avg Low Light Frost (32°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 42m
Apr: 5:29 AM – 6:31 PM · 13h 02m
May: 4:55 AM – 7:05 PM · 14h 09m
Jun: 4:37 AM – 7:23 PM · 14h 45m
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 15m
Daylight Longest: 14h 46m · Shortest: 9h 14m

Nearby Stations

Cylburn, MDApril 2 - November 7 Baltimore Wash Intl AP, MD April 10 - October 31 Annapolis Police Brks, MD March 27 - November 13 Laurel 3 W, MD April 5 - November 9 Annapolis Naf, MD March 23 - November 20 Glenn Dale Bell Stn, MD April 22 - October 22

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