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Built 2026-10-18 (18 October 2026)

Chicopee Falls Westover Fld Weather Records (USW00014703)

Record envelope, standing records and threshold days for Chicopee Falls Westover Fld (USW00014703), Massachusetts, United States, with 85 years of record.

Key Facts for Chicopee Falls Westover Fld

  • Chicopee Falls Westover Fld (USW00014703) is a weather station in Massachusetts, United States at 42.20 latitude and -72.53 longitude, 75 m (246 ft) above sea level.
  • The station reports from 1942 to 2026, 85 years of record.
  • 1,464 records set at Chicopee Falls Westover Fld still stand.
  • Records are tracked for tmax, tmin: an element needs 30 years of data to be eligible.
  • Chicopee Falls Westover Fld set a daily record high minimum temperature of 17.8 C (64.0 F) on 2 October 2026 (provisional).

Provisional Records

Records set in the last 60 days are provisional until they clear the revision window.

About the Station

  • Location: Massachusetts, United States, 42.20 latitude, -72.53 longitude.
  • Elevation: 75 m (246 ft).
  • Period of record: 1942 to 2026, 85 years.
  • Eligible elements: tmax, tmin.

Daily Record Envelope and 2026

22 days at or beyond a record
Daily record high and record low at Chicopee Falls Westover Fld, with 2026 drawn through them The band shows the record high and record low for each calendar day at Chicopee Falls Westover Fld. The lines show the 2026 daily maximum and minimum. 22 days in 2026 matched or passed a record. Temperatures are in degrees Celsius. -40-2002040 JanFebMarAprMayJunJulAugSepOctNovDec
The band shows the record high and record low for each calendar day at Chicopee Falls Westover Fld. The lines show the 2026 daily maximum and minimum. 22 days in 2026 matched or passed a record. Temperatures are in degrees Celsius.
Daily record high and record low at Chicopee Falls Westover Fld, with 2026 drawn through them
MonthHighest record highLowest record low2026 highest maximum2026 lowest minimum
Jan18.3 C (64.9 F)-30.0 C (-22.0 F)8.7 C (47.7 F)-26.0 C (-14.8 F)
Feb18.3 C (64.9 F)-28.9 C (-20.0 F)9.9 C (49.8 F)-22.8 C (-9.0 F)
Mar30.0 C (86.0 F)-25.0 C (-13.0 F)25.3 C (77.5 F)-13.7 C (7.3 F)
Apr32.2 C (90.0 F)-13.3 C (8.1 F)31.7 C (89.1 F)-4.5 C (23.9 F)
May38.3 C (100.9 F)-3.9 C (25.0 F)36.0 C (96.8 F)1.1 C (34.0 F)
Jun38.9 C (102.0 F)0.0 C (32.0 F)34.7 C (94.5 F)4.4 C (39.9 F)
Jul38.3 C (100.9 F)5.6 C (42.1 F)36.9 C (98.4 F)10.4 C (50.7 F)
Aug37.8 C (100.0 F)-1.1 C (30.0 F)33.5 C (92.3 F)11.3 C (52.3 F)
Sep38.3 C (100.9 F)-3.9 C (25.0 F)30.4 C (86.7 F)5.0 C (41.0 F)
Oct31.7 C (89.1 F)-8.3 C (17.1 F)30.6 C (87.1 F)-0.5 C (31.1 F)
Nov27.2 C (81.0 F)-13.3 C (8.1 F)n/an/a
Dec17.8 C (64.0 F)-26.7 C (-16.1 F)n/an/a

Which Years Hold Standing Records

1,464 standing records
Standing records at Chicopee Falls Westover Fld by the year they were set 1,464 records at Chicopee Falls Westover Fld still stand. 1964 holds the most, with 72. 0204060801942: 281943: 471944: 291945: 531946: 581947: 561948: 501949: 631950: 501951: 491952: 321953: 561954: 521955: 381956: 431957: 511958: 261959: 651960: 291961: 451962: 451963: 651964: 721965: 561966: 391967: 501968: 461969: 281970: 452025: 552026: 4319421946195019541958196219661970
1,464 records at Chicopee Falls Westover Fld still stand. 1964 holds the most, with 72.
Standing records at Chicopee Falls Westover Fld by the year they were set
Year setStanding records
194228
194347
194429
194553
194658
194756
194850
194963
195050
195149
195232
195356
195452
195538
195643
195751
195826
195965
196029
196145
196245
196365
196472
196556
196639
196750
196846
196928
197045
202555
202643

Wettest Day of Each Month

Aug: 191.8 mm (7.6 in)
Record daily precipitation for each month at Chicopee Falls Westover Fld The wettest day on record for each calendar month at Chicopee Falls Westover Fld. The most was 191.8 mm (7.6 in) on 19 August 1955. 050100150200 Jan: 48.3 mm (1.9 in), 6 January 1962 Jan Feb: 82.6 mm (3.3 in), 7 February 1951 Feb Mar: 42.7 mm (1.7 in), 9 March 1942 Mar Apr: 90.4 mm (3.6 in), 25 April 1945 Apr May: 55.6 mm (2.2 in), 20 May 1949 May Jun: 59.9 mm (2.4 in), 4 June 1960 Jun Jul: 61.2 mm (2.4 in), 15 July 1945 Jul Aug: 191.8 mm (7.6 in), 19 August 1955 Aug Sep: 98.3 mm (3.9 in), 12 September 1960 Sep Oct: 85.6 mm (3.4 in), 24 October 1959 Oct Nov: 66.8 mm (2.6 in), 3 November 1951 Nov Dec: 54.1 mm (2.1 in), 10 December 1957 Dec
The wettest day on record for each calendar month at Chicopee Falls Westover Fld. The most was 191.8 mm (7.6 in) on 19 August 1955.
Record daily precipitation for each month at Chicopee Falls Westover Fld
MonthRecord daily precipitation (mm)Date
Jan48.3 mm (1.9 in)6 January 1962
Feb82.6 mm (3.3 in)7 February 1951
Mar42.7 mm (1.7 in)9 March 1942
Apr90.4 mm (3.6 in)25 April 1945
May55.6 mm (2.2 in)20 May 1949
Jun59.9 mm (2.4 in)4 June 1960
Jul61.2 mm (2.4 in)15 July 1945
Aug191.8 mm (7.6 in)19 August 1955
Sep98.3 mm (3.9 in)12 September 1960
Oct85.6 mm (3.4 in)24 October 1959
Nov66.8 mm (2.6 in)3 November 1951
Dec54.1 mm (2.1 in)10 December 1957

Period of Record Coverage

1942 to 2026
Days with data per year at Chicopee Falls Westover Fld 31 years of record at Chicopee Falls Westover Fld, 1942 to 2026. 3 years have data for under 90 percent of days and are left out of rankings: 1942, 1946, 2026. 1942: 318 of 365 days1943: 333 of 365 days1944: 360 of 366 days1945: 363 of 365 days1946: 302 of 365 days1947: 364 of 365 days1948: 365 of 366 days1949: 362 of 365 days1950: 362 of 365 days1951: 363 of 365 days1952: 365 of 366 days1953: 363 of 365 days1954: 352 of 365 days1955: 355 of 365 days1956: 349 of 366 days1957: 349 of 365 days1958: 365 of 365 days1959: 364 of 365 days1960: 364 of 366 days1961: 363 of 365 days1962: 364 of 365 days1963: 365 of 365 days1964: 365 of 366 days1965: 363 of 365 days1966: 363 of 365 days1967: 363 of 365 days1968: 361 of 366 days1969: 333 of 365 days1970: 363 of 365 days2025: 357 of 365 days2026: 276 of 365 days1945195019551960196519702025
31 years of record at Chicopee Falls Westover Fld, 1942 to 2026. 3 years have data for under 90 percent of days and are left out of rankings: 1942, 1946, 2026.
Days with data per year at Chicopee Falls Westover Fld
YearDays with dataShare of yearComplete
194231887%No
194333391%Yes
194436098%Yes
194536399%Yes
194630283%No
1947364100%Yes
1948365100%Yes
194936299%Yes
195036299%Yes
195136399%Yes
1952365100%Yes
195336399%Yes
195435296%Yes
195535597%Yes
195634995%Yes
195734996%Yes
1958365100%Yes
1959364100%Yes
196036499%Yes
196136399%Yes
1962364100%Yes
1963365100%Yes
1964365100%Yes
196536399%Yes
196636399%Yes
196736399%Yes
196836199%Yes
196933391%Yes
197036399%Yes
202535798%Yes
202627676%No

Latest Records

20
Latest records at Chicopee Falls Westover Fld
DateStationRecordValueBeat old record byOld record stoodSignificance
2 October 2026Chicopee Falls Westover Fld, USdaily high min (Provisional)17.8 C (64.0 F)2.2 C (4.0 F)72 years33 of 100 (Routine)
2 October 2026Chicopee Falls Westover Fld, USdaily high max (Provisional)30.6 C (87.1 F)2.3 C (4.1 F)72 years33 of 100 (Routine)
18 September 2026Chicopee Falls Westover Fld, USdaily high min (Provisional)17.1 C (62.8 F)0.4 C (0.7 F)84 years33 of 100 (Routine)
10 September 2026Chicopee Falls Westover Fld, USdaily high min (Provisional)19.7 C (67.5 F)0.3 C (0.5 F)80 years32 of 100 (Routine)
28 August 2026Chicopee Falls Westover Fld, USdaily high min (Provisional)20.2 C (68.4 F)0.8 C (1.4 F)67 years29 of 100 (Routine)
8 August 2026Chicopee Falls Westover Fld, USdaily high min21.0 C (69.8 F)0.4 C (0.7 F)56 years25 of 100 (Routine)
7 August 2026Chicopee Falls Westover Fld, USdaily high max33.5 C (92.3 F)0.2 C (0.4 F)71 years29 of 100 (Routine)
6 August 2026Chicopee Falls Westover Fld, USdaily high min21.8 C (71.2 F)0.7 C (1.3 F)81 years33 of 100 (Routine)
3 August 2026Chicopee Falls Westover Fld, USdaily high min22.2 C (72.0 F)1.1 C (2.0 F)83 years34 of 100 (Routine)
15 July 2026Chicopee Falls Westover Fld, USdaily high min23.4 C (74.1 F)1.7 C (3.1 F)83 years36 of 100 (Notable)
10 July 2026Chicopee Falls Westover Fld, USdaily high min21.1 C (70.0 F)0.5 C (0.9 F)71 years30 of 100 (Routine)
4 July 2026Chicopee Falls Westover Fld, USdaily high min23.0 C (73.4 F)2.4 C (4.3 F)73 years36 of 100 (Notable)
3 July 2026Chicopee Falls Westover Fld, USdaily high min21.8 C (71.2 F)1.8 C (3.2 F)76 years35 of 100 (Notable)
2 July 2026Chicopee Falls Westover Fld, USdaily high max36.9 C (98.4 F)1.3 C (2.3 F)60 years29 of 100 (Routine)
13 June 2026Chicopee Falls Westover Fld, USdaily high min21.0 C (69.8 F)1.0 C (1.8 F)84 years35 of 100 (Notable)
12 June 2026Chicopee Falls Westover Fld, USdaily high min22.7 C (72.9 F)1.6 C (2.9 F)84 years36 of 100 (Notable)
12 June 2026Chicopee Falls Westover Fld, USdaily high max34.6 C (94.3 F)0.2 C (0.4 F)76 years31 of 100 (Routine)
11 June 2026Chicopee Falls Westover Fld, USdaily high min20.0 C (68.0 F)1.1 C (2.0 F)84 years35 of 100 (Notable)
11 June 2026Chicopee Falls Westover Fld, USdaily high max34.7 C (94.5 F)2.5 C (4.5 F)56 years29 of 100 (Routine)
2 June 2026Chicopee Falls Westover Fld, USdaily low min4.4 C (39.9 F)0.6 C (1.1 F)80 years33 of 100 (Routine)

Climate Trend

27 complete years, 1943 to 2025
Annual mean temperature at Chicopee Falls Westover Fld as warming stripes, 1943 to 2025 One stripe for each of 27 complete years at Chicopee Falls Westover Fld, 1943 to 2025. Blue stripes are years cooler than the station's own mean of 9.2 C (48.6 F); red stripes are warmer. The coolest year was 1962, at 7.8 C (46.0 F), and the warmest was 1953, at 10.9 C (51.6 F). The strongest colour marks a difference of 1.7 C (3.1 F). 1943: 8.7 C, -0.5 C from the station mean1944: 9.0 C, -0.2 C from the station mean1945: 8.9 C, -0.3 C from the station mean1947: 9.2 C, 0.0 C from the station mean1948: 8.7 C, -0.5 C from the station mean1949: 10.6 C, +1.4 C from the station mean1950: 9.2 C, 0.0 C from the station mean1951: 9.8 C, +0.6 C from the station mean1952: 10.1 C, +0.9 C from the station mean1953: 10.9 C, +1.7 C from the station mean1954: 9.8 C, +0.5 C from the station mean1955: 10.0 C, +0.8 C from the station mean1956: 9.2 C, 0.0 C from the station mean1957: 10.5 C, +1.2 C from the station mean1958: 8.6 C, -0.6 C from the station mean1959: 10.0 C, +0.8 C from the station mean1960: 9.4 C, +0.2 C from the station mean1961: 9.3 C, +0.1 C from the station mean1962: 7.8 C, -1.4 C from the station mean1963: 7.9 C, -1.4 C from the station mean1964: 8.4 C, -0.8 C from the station mean1965: 8.0 C, -1.2 C from the station mean1966: 8.8 C, -0.4 C from the station mean1967: 8.3 C, -0.9 C from the station mean1968: 8.5 C, -0.7 C from the station mean1970: 8.4 C, -0.8 C from the station mean2025: 10.6 C, +1.4 C from the station mean194319501960197019801990200020102020
One stripe for each of 27 complete years at Chicopee Falls Westover Fld, 1943 to 2025. Blue stripes are years cooler than the station's own mean of 9.2 C (48.6 F); red stripes are warmer. The coolest year was 1962, at 7.8 C (46.0 F), and the warmest was 1953, at 10.9 C (51.6 F). The strongest colour marks a difference of 1.7 C (3.1 F).
Annual mean temperature at Chicopee Falls Westover Fld as warming stripes, 1943 to 2025
YearAnnual mean temperatureDifference from the station mean
19438.7 C-0.48 C
19449.0 C-0.18 C
19458.9 C-0.34 C
19479.2 C-0.03 C
19488.7 C-0.47 C
194910.6 C+1.40 C
19509.2 C+0.03 C
19519.8 C+0.60 C
195210.1 C+0.90 C
195310.9 C+1.68 C
19549.8 C+0.55 C
195510.0 C+0.82 C
19569.2 C0.00 C
195710.5 C+1.25 C
19588.6 C-0.58 C
195910.0 C+0.76 C
19609.4 C+0.23 C
19619.3 C+0.09 C
19627.8 C-1.41 C
19637.9 C-1.35 C
19648.4 C-0.79 C
19658.0 C-1.18 C
19668.8 C-0.43 C
19678.3 C-0.93 C
19688.5 C-0.72 C
19708.4 C-0.77 C
202510.6 C+1.40 C

This station does not have enough complete years (30 are needed) to fit a temperature trend.

A year is complete when all 12 months have at least 20 days of both daily maximum and daily minimum readings. The annual mean is the mean of the monthly means. The trend describes this one station over this period; it does not say what caused the change.

Extremes by Year

1942 to 2026
Yearly extremes at Chicopee Falls Westover Fld: the record and the median year
MeasureRecordYear of the recordMedian yearYears with a value
Hottest day (TXx)38.9 C (102.0 F)195235.0 C (95.0 F)31
Coldest night (TNn)-30.0 C (-22.0 F)1961-24.4 C (-11.9 F)31
Wettest day (Rx1day)191.8 mm (7.6 in)195559.8 mm (2.4 in)30
Wettest five days (Rx5day)348.5 mm (13.7 in)195593.2 mm (3.7 in)30
Longest dry spell (CDD)36 days194718 days30

Hottest day (TXx)

Hottest day (TXx) at Chicopee Falls Westover Fld by year The hottest day of the year at Chicopee Falls Westover Fld, 1942 to 2026. The record is 38.9 C (102.0 F) in 1952, marked on the chart; the median year is 35.0 C (95.0 F). 32343638401960198020002020Record: 38.9 C (102.0 F) in 1952
The hottest day of the year at Chicopee Falls Westover Fld, 1942 to 2026. The record is 38.9 C (102.0 F) in 1952, marked on the chart; the median year is 35.0 C (95.0 F).
Hottest day (TXx) at Chicopee Falls Westover Fld by year
YearHottest day (TXx)
194233.9 C (93.0 F)
194335.6 C (96.1 F)
194437.2 C (99.0 F)
194535.0 C (95.0 F)
194635.6 C (96.1 F)
194736.1 C (97.0 F)
194837.2 C (99.0 F)
194937.2 C (99.0 F)
195032.8 C (91.0 F)
195133.3 C (91.9 F)
195238.9 C (102.0 F)
195338.3 C (100.9 F)
195435.0 C (95.0 F)
195537.8 C (100.0 F)
195635.0 C (95.0 F)
195735.0 C (95.0 F)
195833.9 C (93.0 F)
195934.4 C (93.9 F)
196033.3 C (91.9 F)
196133.9 C (93.0 F)
196233.3 C (91.9 F)
196334.4 C (93.9 F)
196438.3 C (100.9 F)
196535.0 C (95.0 F)
196638.3 C (100.9 F)
196735.6 C (96.1 F)
196835.0 C (95.0 F)
196933.9 C (93.0 F)
197033.9 C (93.0 F)
202537.5 C (99.5 F)
202636.9 C (98.4 F)

Coldest night (TNn)

Coldest night (TNn) at Chicopee Falls Westover Fld by year The coldest night of the year at Chicopee Falls Westover Fld, 1942 to 2026. The record is -30.0 C (-22.0 F) in 1961, marked on the chart; the median year is -24.4 C (-11.9 F). -30-25-20-15-101960198020002020Record: -30.0 C (-22.0 F) in 1961
The coldest night of the year at Chicopee Falls Westover Fld, 1942 to 2026. The record is -30.0 C (-22.0 F) in 1961, marked on the chart; the median year is -24.4 C (-11.9 F).
Coldest night (TNn) at Chicopee Falls Westover Fld by year
YearColdest night (TNn)
1942-24.4 C (-11.9 F)
1943-27.8 C (-18.0 F)
1944-22.8 C (-9.0 F)
1945-23.3 C (-9.9 F)
1946-23.9 C (-11.0 F)
1947-21.1 C (-6.0 F)
1948-29.4 C (-20.9 F)
1949-18.3 C (-0.9 F)
1950-23.3 C (-9.9 F)
1951-24.4 C (-11.9 F)
1952-19.4 C (-2.9 F)
1953-12.8 C (9.0 F)
1954-26.1 C (-15.0 F)
1955-22.2 C (-8.0 F)
1956-18.9 C (-2.0 F)
1957-28.9 C (-20.0 F)
1958-22.8 C (-9.0 F)
1959-18.3 C (-0.9 F)
1960-18.9 C (-2.0 F)
1961-30.0 C (-22.0 F)
1962-25.0 C (-13.0 F)
1963-26.7 C (-16.1 F)
1964-25.6 C (-14.1 F)
1965-27.2 C (-17.0 F)
1966-24.4 C (-11.9 F)
1967-28.9 C (-20.0 F)
1968-28.9 C (-20.0 F)
1969-23.9 C (-11.0 F)
1970-27.2 C (-17.0 F)
2025-24.1 C (-11.4 F)
2026-26.0 C (-14.8 F)

Wettest day (Rx1day)

Wettest day (Rx1day) at Chicopee Falls Westover Fld by year The wettest day of the year at Chicopee Falls Westover Fld, 1942 to 2026. The record is 191.8 mm (7.6 in) in 1955, marked on the chart; the median year is 59.8 mm (2.4 in). 0501001502001960198020002020Record: 191.8 mm (7.6 in) in 1955
The wettest day of the year at Chicopee Falls Westover Fld, 1942 to 2026. The record is 191.8 mm (7.6 in) in 1955, marked on the chart; the median year is 59.8 mm (2.4 in).
Wettest day (Rx1day) at Chicopee Falls Westover Fld by year
YearWettest day (Rx1day)
194253.1 mm (2.1 in)
194355.1 mm (2.2 in)
194483.1 mm (3.3 in)
194590.4 mm (3.6 in)
194659.4 mm (2.3 in)
194761.7 mm (2.4 in)
194857.9 mm (2.3 in)
194983.3 mm (3.3 in)
195074.2 mm (2.9 in)
195182.6 mm (3.3 in)
195264.5 mm (2.5 in)
195341.4 mm (1.6 in)
195464.0 mm (2.5 in)
1955191.8 mm (7.6 in)
195672.4 mm (2.9 in)
195754.1 mm (2.1 in)
195852.6 mm (2.1 in)
195985.6 mm (3.4 in)
196098.3 mm (3.9 in)
196148.3 mm (1.9 in)
196248.3 mm (1.9 in)
196360.2 mm (2.4 in)
196431.0 mm (1.2 in)
196529.7 mm (1.2 in)
196638.9 mm (1.5 in)
196751.3 mm (2.0 in)
196846.7 mm (1.8 in)
196962.0 mm (2.4 in)
197053.1 mm (2.1 in)
2025n/a
202685.5 mm (3.4 in)

Wettest five days (Rx5day)

Wettest five days (Rx5day) at Chicopee Falls Westover Fld by year The wettest five days of the year at Chicopee Falls Westover Fld, 1942 to 2026. The record is 348.5 mm (13.7 in) in 1955, marked on the chart; the median year is 93.2 mm (3.7 in). 01002003004001960198020002020Record: 348.5 mm (13.7 in) in 1955
The wettest five days of the year at Chicopee Falls Westover Fld, 1942 to 2026. The record is 348.5 mm (13.7 in) in 1955, marked on the chart; the median year is 93.2 mm (3.7 in).
Wettest five days (Rx5day) at Chicopee Falls Westover Fld by year
YearWettest five days (Rx5day)
1942100.4 mm (4.0 in)
194396.3 mm (3.8 in)
1944130.4 mm (5.1 in)
194594.0 mm (3.7 in)
1946108.5 mm (4.3 in)
1947111.5 mm (4.4 in)
194894.3 mm (3.7 in)
1949120.6 mm (4.7 in)
1950102.1 mm (4.0 in)
1951115.2 mm (4.5 in)
195268.6 mm (2.7 in)
195397.0 mm (3.8 in)
195471.1 mm (2.8 in)
1955348.5 mm (13.7 in)
195675.4 mm (3.0 in)
195786.9 mm (3.4 in)
195892.4 mm (3.6 in)
1959114.6 mm (4.5 in)
1960117.1 mm (4.6 in)
196156.4 mm (2.2 in)
196279.1 mm (3.1 in)
196361.2 mm (2.4 in)
196446.2 mm (1.8 in)
196548.2 mm (1.9 in)
196662.0 mm (2.4 in)
196769.1 mm (2.7 in)
196859.0 mm (2.3 in)
196995.6 mm (3.8 in)
197086.4 mm (3.4 in)
2025n/a
202642.5 mm (1.7 in)

Longest dry spell (CDD)

Longest dry spell (CDD) at Chicopee Falls Westover Fld by year The longest dry spell of the year at Chicopee Falls Westover Fld, 1942 to 2026. The record is 36 days in 1947, marked on the chart; the median year is 18 days. 0102030401960198020002020Record: 36 days in 1947
The longest dry spell of the year at Chicopee Falls Westover Fld, 1942 to 2026. The record is 36 days in 1947, marked on the chart; the median year is 18 days.
Longest dry spell (CDD) at Chicopee Falls Westover Fld by year
YearLongest dry spell (CDD)
194224 days
194318 days
194419 days
194515 days
194615 days
194736 days
194826 days
194925 days
195020 days
195116 days
195224 days
195328 days
195414 days
195517 days
195615 days
195717 days
195814 days
195914 days
196018 days
196119 days
196214 days
196324 days
196418 days
196514 days
196627 days
196715 days
196822 days
196917 days
197017 days
2025n/a
20262 days

Each chart shows one value per year; the dot marks the record year. TXx is the hottest daily maximum, TNn the coldest daily minimum, Rx1day and Rx5day the largest one-day and five-day rain totals, and CDD the longest run of days with less than 1 mm of rain. A year with missing days can understate an extreme.

Frost Dates and Growing Season

27 years with a frost

Across 27 years with a frost, the median last spring frost at Chicopee Falls Westover Fld falls on 11 May and the median first autumn frost on 1 October, which leaves a median of 143 days between them.

Fitted over all years, the growing season changes by +1.0 days per decade at this station.

Frost dates and growing season at Chicopee Falls Westover Fld
MeasureMedian, all yearsEarliest periodRecent period (1943 to 2025)Recent against earliestFitted trend
Last spring frost11 Mayn/a11 Mayn/a-0.8 days per decade
First autumn frost1 Octobern/a1 Octobern/a+0.2 days per decade
Growing days143 daysn/a143 daysn/a+1.0 days per decade

A frost day is a day with a daily minimum at or below 0 C (32 F). The last spring frost and the first autumn frost are the last and first such days of the cold season, and growing days are the days between them. A negative trend for the last spring frost means it comes earlier.

Download the Data

  • Data for Chicopee Falls Westover Fld standing records by year: CSV or JSON. Field meanings are on the data page.
  • Data for Chicopee Falls Westover Fld threshold days by year: CSV or JSON. Field meanings are on the data page.

Source: NOAA National Centers for Environmental Information, Global Historical Climatology Network Daily (GHCN-Daily). Records are computed by World Extreme Weather Monitor and are not official NOAA products. (US Government open data (NOAA NCEI)) Data as of 2026-10-16 (16 October 2026). Records are computed by this site and are not official.

Data as of . Last revised (2026-10-16).