Frost Dates for Westfield 3 Sw, MA

Elevation: 131 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. April 28
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 17

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 3
First Fall Frost October 11

Hard Freeze (28°F)

Last Spring Hard Freeze April 15
First Fall Hard Freeze October 30
42.09°N, 72.80°W © OpenStreetMap

Growing Season

172 Days April 28 to October 17

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 5b

Avg. annual minimum: −15 to −10°F

Learn more

Köppen Climate

The 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

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
January33°25°16°
February37°27°17°
March45°35°25°
April58°47°35°
May70°58°46°
June78°67°56°
July84°72°61°
August82°70°59°
September75°63°52°
October62°51°40°
November49°40°31°
December38°30°22°

Precipitation

Precipitation table
Average monthly precipitation (inches)
MonthPrecipitation
January6.4
February6.8
March5.8
April4.3
May4.7
June6.0
July6.9
August6.6
September6.3
October5.5
November5.5
December6.9

Sunrise / Sunset

Daylight Eastern Time (ET) Longest: 15h 05m · Shortest: 8h 55m
Sunrise and sunset table
Sunrise, sunset, and daylight on the 15th of each month (Eastern Time (ET))
Month Sunrise Sunset Daylight
January7:23 AM4:38 PM9h 15m
February6:55 AM5:17 PM10h 21m
March7:11 AM6:51 PM11h 40m
April6:17 AM7:26 PM13h 09m
May5:36 AM7:59 PM14h 23m
June5:20 AM8:23 PM15h 03m
July5:33 AM8:20 PM14h 47m
August6:04 AM7:47 PM13h 42m
September6:38 AM6:54 PM12h 16m
October7:12 AM6:01 PM10h 50m
November6:49 AM4:23 PM9h 34m
December7:19 AM4:15 PM8h 57m

Nearby Stations

Westfield Barnes Muni AP, MA May 3 - October 8 Hartford Bradley Intl AP, CT April 21 - October 16 Barkhamsted, CT April 30 - October 17 Bakersville, CTMay 8 - October 5 Worthington, MAMay 13 - October 2 Burlington, CT April 25 - October 18

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