Frost Dates for Osterville, MA

Based on data from Hyannis weather station, 5 miles away

Elevation: 33 ft

Frost Dates

Last Spring Frost (50%) April 16

First Fall Frost (50%) October 30

30% Probability

Last Spring Frost April 22

First Fall Frost October 24

Hard Freeze (28°F)

Last Spring Hard Freeze April 3

First Fall Hard Freeze November 11

41.63°N, 70.39°W © OpenStreetMap

Growing Season

197 Days April 16 to October 30

USDA Hardiness Zone

Zone 7a

Avg. annual minimum: 0 to 5°F

Learn more

Köppen Climate

Cfb Oceanic (Marine West Coast)

Mild year-round with cool summers and wet winters. Excellent for cool-season crops like brassicas, peas, and root vegetables. Extended harvest seasons but summer heat-loving crops may struggle.

Köppen climate map

Temperature

20° 40° 60° 80°

31°

Jan

32°

Feb

37°

Mar

46°

Apr

55°

May

64°

Jun

71°

Jul

70°

Aug

64°

Sep

54°

Oct

45°

Nov

36°

Dec

32°F

28°F

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
January	39°	31°	22°
February	40°	32°	24°
March	44°	37°	30°
April	54°	46°	38°
May	63°	55°	48°
June	72°	64°	57°
July	78°	71°	64°
August	77°	70°	63°
September	71°	64°	57°
October	61°	54°	46°
November	52°	45°	37°
December	44°	36°	29°

Precipitation

0" 3" 6" 8.3"

6.5"

Jan

7.0"

Feb

8.3"

Mar

6.0"

Apr

5.4"

May

6.2"

Jun

6.2"

Jul

6.8"

Aug

6.4"

Sep

6.5"

Oct

6.9"

Nov

6.7"

Dec

Precipitation table

Average monthly precipitation (inches)
Month	Precipitation
January	6.5
February	7.0
March	8.3
April	6.0
May	5.4
June	6.2
July	6.2
August	6.8
September	6.4
October	6.5
November	6.9
December	6.7

Sunrise / Sunset

Jan: 7:12 AM – 4:29 PM · 9h 18m

Feb: 6:44 AM – 5:07 PM · 10h 23m

Mar: 7:01 AM – 6:41 PM · 11h 40m

Apr: 6:08 AM – 7:15 PM · 13h 08m

May: 5:27 AM – 7:48 PM · 14h 21m

Jun: 5:11 AM – 8:12 PM · 15h 00m

Jul: 5:25 AM – 8:09 PM · 14h 44m

Aug: 5:55 AM – 7:36 PM · 13h 41m

Sep: 6:28 AM – 6:44 PM · 12h 16m

Oct: 7:01 AM – 5:52 PM · 10h 51m

Nov: 6:38 AM – 4:14 PM · 9h 36m

Dec: 7:07 AM – 4:07 PM · 8h 59m

Daylight Eastern Time (ET) Longest: 15h 02m · Shortest: 8h 58m

Sunrise and sunset table

Sunrise, sunset, and daylight on the 15th of each month (Eastern Time (ET))
Month	Sunrise	Sunset	Daylight
January	7:12 AM	4:29 PM	9h 18m
February	6:44 AM	5:07 PM	10h 23m
March	7:01 AM	6:41 PM	11h 40m
April	6:08 AM	7:15 PM	13h 08m
May	5:27 AM	7:48 PM	14h 21m
June	5:11 AM	8:12 PM	15h 00m
July	5:25 AM	8:09 PM	14h 44m
August	5:55 AM	7:36 PM	13h 41m
September	6:28 AM	6:44 PM	12h 16m
October	7:01 AM	5:52 PM	10h 51m
November	6:38 AM	4:14 PM	9h 36m
December	7:07 AM	4:07 PM	8h 59m

Nearby Stations

Hyannis Barnstable Muni AP, MA April 22 - October 28 E Sandwich, MA April 26 - October 26 W Harwich, MA April 13 - November 3 Chatham Muni AP, MA April 13 - November 4 Chatham, MAApril 5 - November 15 E Wareham, MA April 21 - October 24

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