Springfield, Massachusetts climate: NOAA's gridded normals for the city, beside the nearest station records

NOAA's gridded 1991-2020 normals put Springfield's center at January lows of 17°F and July highs of 85°F, a yearly mean of 50.0°F and 44.7 inches of precipitation. No NOAA station keeps a record under the city's name. The nearest station record, Hartford (14 miles SW, 190 ft), has January lows of 19°F and July highs of 85°F.

154,888 people (Census Bureau 2024). Distances and directions are from the city's center.

  1. Jan 35° 17°
  2. Feb 39° 19°
  3. Mar 47° 27°
  4. Apr 60° 36°
  5. May 71° 47°
  6. Jun 80° 56°
  7. Jul 85° 62°
  8. Aug 83° 60°
  9. Sep 75° 52°
  10. Oct 63° 41°
  11. Nov 51° 32°
  12. Dec 40° 23°

Each month: normal high (large) and low, °F. Fill: the month's normal mean, colder blue to hotter red.

The months above are NOAA's gridded normals at Springfield's center.

What is each month like in Springfield?

NOAA's grid estimates the normals every 5 km or so from the stations around each point, terrain included. It smooths between stations, so night lows at the heart of a large city can run warmer than the grid shows: at five big-city airports we compared, the grid's highs were within about 1°F of the station and its lows 1-6°F cooler. The nearest record's high and low are beside each month.

Springfield: NOAA gridded 1991-2020 normals by month, and the nearest record (Hartford) (°F, inches)
MonthHighLowMeanPrecip.Hartford highHartford low
January35°F17°F26.2°F3.0835°F19°F
February39°F19°F28.8°F2.6939°F21°F
March47°F27°F36.8°F3.5647°F28°F
April60°F36°F48.2°F3.6761°F38°F
May71°F47°F59.1°F3.4672°F48°F
June80°F56°F67.7°F4.2580°F58°F
July85°F62°F73.1°F4.0285°F63°F
August83°F60°F71.4°F4.1183°F62°F
September75°F52°F63.8°F4.1576°F54°F
October63°F41°F51.8°F4.3764°F42°F
November51°F32°F41.5°F3.3852°F33°F
December40°F23°F31.7°F3.9241°F25°F
Springfield: normal daily high and low by month (NOAA gridded normals)

In metric: a yearly mean of 10.0°C, January lows of −8°C, July highs of 29°C and 1,135 mm of precipitation a year.

Source: NOAA NCEI U.S. Monthly Gridded Climate Normals 1991-2020 (nClimGrid, accession 0245564); NOAA NCEI 1991-2020 station normals. The grid cell holding the city's Census center point.

What do the station records around Springfield say?

Each row is a NOAA station's own 1991-2020 normals, with the snow and frost dates the grid does not give. A record downhill or nearer the coast than the city can run warmer, one uphill cooler: compare the elevations.

The nearest NOAA station records to Springfield: 1991-2020 normals (°F, inches)
RecordWhereElevationYearJan lowJul highPrecip.SnowLast frost
HartfordHartford-Bradley International Airport14 mi SW190 ft51.0°F19°F85°F47.052April 21
WestfieldWestfield-Barnes Regional Airport9 mi W271 ft49.4°F16°F85°F45.2–May 3
Belchertown15 mi NE550 ft47.7°F15°F82°F47.548May 3

Source: NOAA NCEI 1991-2020 U.S. Climate Normals; place center and population: Census Bureau 2024. Last frost: the median last spring date of 32°F.

How much snow, how late a frost, what zone and how much sun in Springfield?

NOAA's grid gives no snow, frost dates or records, so these come from the nearest station record, Hartford (14 miles SW, 190 ft). It gets 52 inches of snow in a normal year. The last spring frost (32°F) comes after April 21 in half of years and the first autumn frost before October 16. Its record high is 103°F (2011) and its record low −26°F (1961), on the National Weather Service's long record for the area (kept since 1905).

The USDA's 2023 Plant Hardiness Zone Map puts Springfield in zones 6a to 6b across its 11 ZIP code areas.

Over a year 73% of the sunlight that would reach the ground under clear skies gets through the clouds in the area (3.9 kWh per square metre a day, NASA POWER 2001-2020); July is the sunniest month (79%) and December the cloudiest (67%).

Hartford's page has its months, frost probabilities, records by month and recent years. NOAA's grid has monthly figures only, so there are no day-by-day month pages for Springfield; the nearest record's month pages have them.

Source: NOAA NCEI 1991-2020 normals, station USW00014740; records: ACIS; USDA 2023 Plant Hardiness Zone Map, ZIP listings: PRISM Group, Oregon State University, https://prism.oregonstate.edu, accessed October 8, 2026; sunshine: NASA POWER.

How does the climate vary across Springfield, ZIP code by ZIP code?

11 ZIP code areas lie wholly or partly in Springfield. On NOAA's grid 01103 is the warmest (50.3°F a year) and 01129 the coolest (49.8°F), a spread of 0.5°F. Each row also names the nearest station record and its frost dates.

Springfield ZIP code areas: USDA 2023 hardiness zone, NOAA gridded normals and the nearest station record
ZIP codeZoneYearJan lowJul highPrecip.Nearest recordLast frostFirst frost
011036b50.3°F17°F85°F45.5Westfield (7 mi)May 3October 8
011046a49.9°F17°F85°F45.0Westfield (8 mi)May 3October 8
011056b50.1°F17°F85°F45.3Westfield (8 mi)May 3October 8
011076b50.3°F17°F85°F45.5Westfield (6 mi)May 3October 8
011086b50.3°F17°F85°F45.1Westfield (10 mi)May 3October 8
011096a50.1°F17°F85°F45.3Westfield (9 mi)May 3October 8
011186b50.0°F17°F85°F44.7Westfield (11 mi)May 3October 8
011196a50.0°F17°F85°F44.7Westfield (11 mi)May 3October 8
011286a49.8°F17°F84°F44.6Westfield (12 mi)May 3October 8
011296a49.8°F17°F84°F44.6Westfield (12 mi)May 3October 8
011516a49.9°F17°F85°F44.5Westfield (11 mi)May 3October 8

Source: Census Bureau 2020 ZCTA-to-place relationship file and ZCTA centers; NOAA NCEI gridded and station normals, 1991-2020. A ZIP area counts when at least a tenth of its land (and 0.5 km²) is in the city; its figures are the grid cell at its center; frost dates are the nearest record's medians of 32°F.

Where next: each record in full, the state and the frost tool