Worcester, MA

Climate overview — based on NOAA 1991-2020 normals from WORCESTER RGNL AP, MA US.

Dfb Warm-summer humid continental climate 7a USDA hardiness Zone 7a

Year-round temperatures (°F)

10° 30° 50° 70° J F M A M J J A S O N D
Avg high Avg low

Climate summary

Worcester has an annual average temperature of 48.1°F with about 48.3 inches of precipitation per year and 72.9 inches of snow. The warmest month is July (average high 79.8°F), and the coldest is January (average low 17.1°F). October is typically the wettest month (4.84 in) and February the driest (3.26 in). Snow typically falls from October through April.

Pleasant months
4 / 12
avg high 65–80°F, low ≥ 50°F
Annual swing
46.1°F
warmest to coldest month
Heating need
6,384
Cooling need
309

Best time to visit Worcester

Full guide →

Climate change signal

All-time records →

62 of 366 (16.9%) of Worcester's all-time daily heat records have been set since 2015. If records were spread evenly across the station's history, only about 5% would fall in any given decade.

1940s
25
1950s
54
1960s
35
1970s
34
1980s
43
1990s
45
2000s
39
2010s
45
2020s
46

Bars: number of all-time daily heat records still standing that were set in each decade.

Monthly averages

Month Avg High Avg Low Avg Temp Precipitation Snow Rainy days
January 32.3°F 17.1°F 24.7°F 3.52 in 18.2 in 12
February 35.1°F 18.9°F 27.0°F 3.26 in 21.2 in 11
March 43.0°F 26.0°F 34.5°F 4.19 in 13.7 in 12
April 55.7°F 36.5°F 46.1°F 4.08 in 1.9 in 13
May 66.6°F 46.8°F 56.7°F 3.56 in 13
June 74.5°F 55.9°F 65.2°F 4.22 in 12
July 79.8°F 61.7°F 70.8°F 3.93 in 11
August 78.1°F 60.5°F 69.3°F 4.14 in 10
September 70.7°F 53.2°F 61.9°F 4.24 in 10
October 58.9°F 42.2°F 50.6°F 4.84 in 1.1 in 12
November 47.9°F 32.5°F 40.2°F 4.00 in 1.9 in 11
December 37.5°F 23.4°F 30.5°F 4.28 in 14.9 in 12

Climate twins of Worcester

Why these? →

The most climatically similar US cities at least 140 miles away (by monthly temperature + precipitation pattern).

Frost dates
Last spring / first fall frost
All-time records
Hottest, coldest, wettest
Planting calendar
What to plant, and when

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