Belchertown Weather Records (USC00190562)
Record envelope, standing records and threshold days for Belchertown (USC00190562), Massachusetts, United States, with 85 years of record.
Key Facts for Belchertown
- Belchertown (USC00190562) is a weather station in Massachusetts, United States at 42.28 latitude and -72.35 longitude, 168 m (550 ft) above sea level.
- The station reports from 1942 to 2026, 85 years of record.
- 1,464 records set at Belchertown still stand.
- Records are tracked for prcp, snow, snwd: an element needs 30 years of data to be eligible.
- Belchertown set a daily record precipitation of 45.5 mm (1.8 in) on 12 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, 42.28 latitude, -72.35 longitude.
- Elevation: 168 m (550 ft).
- Period of record: 1942 to 2026, 85 years.
- Eligible elements: prcp, snow, snwd.
Daily Record Envelope and 2026
23 days at or beyond a record| Month | Highest record high | Lowest record low | 2026 highest maximum | 2026 lowest minimum |
|---|---|---|---|---|
| Jan | 19.4 C (66.9 F) | -27.8 C (-18.0 F) | 8.3 C (46.9 F) | -21.7 C (-7.1 F) |
| Feb | 22.8 C (73.0 F) | -30.6 C (-23.1 F) | 6.7 C (44.1 F) | -21.1 C (-6.0 F) |
| Mar | 29.4 C (84.9 F) | -22.8 C (-9.0 F) | 23.9 C (75.0 F) | -12.8 C (9.0 F) |
| Apr | 33.3 C (91.9 F) | -10.0 C (14.0 F) | 30.0 C (86.0 F) | -5.6 C (21.9 F) |
| May | 35.0 C (95.0 F) | -2.8 C (27.0 F) | 35.0 C (95.0 F) | 1.1 C (34.0 F) |
| Jun | 36.7 C (98.1 F) | 1.1 C (34.0 F) | 33.9 C (93.0 F) | 3.9 C (39.0 F) |
| Jul | 37.2 C (99.0 F) | 5.6 C (42.1 F) | 35.6 C (96.1 F) | 10.0 C (50.0 F) |
| Aug | 38.3 C (100.9 F) | 2.2 C (36.0 F) | 32.8 C (91.0 F) | 11.7 C (53.1 F) |
| Sep | 34.4 C (93.9 F) | -2.8 C (27.0 F) | 28.9 C (84.0 F) | 6.1 C (43.0 F) |
| Oct | 31.1 C (88.0 F) | -7.8 C (18.0 F) | 28.9 C (84.0 F) | 3.9 C (39.0 F) |
| Nov | 25.6 C (78.1 F) | -15.0 C (5.0 F) | n/a | n/a |
| Dec | 17.8 C (64.0 F) | -27.2 C (-17.0 F) | n/a | n/a |
Which Years Hold Standing Records
1,464 standing records| Year set | Standing records |
|---|---|
| 1942 | 73 |
| 1943 | 79 |
| 1944 | 59 |
| 1945 | 73 |
| 1946 | 76 |
| 1947 | 81 |
| 1948 | 46 |
| 1950 | 5 |
| 1968 | 5 |
| 1972 | 5 |
| 1974 | 12 |
| 1975 | 3 |
| 1976 | 18 |
| 1977 | 20 |
| 1978 | 3 |
| 1980 | 12 |
| 1981 | 13 |
| 2008 | 16 |
| 2009 | 46 |
| 2010 | 58 |
| 2011 | 50 |
| 2012 | 53 |
| 2013 | 48 |
| 2014 | 42 |
| 2015 | 62 |
| 2016 | 46 |
| 2017 | 70 |
| 2018 | 64 |
| 2019 | 37 |
| 2020 | 55 |
| 2021 | 35 |
| 2022 | 46 |
| 2023 | 43 |
| 2024 | 39 |
| 2025 | 41 |
| 2026 | 30 |
All-Time Record Progression
3 new records| Date | Kind | Detail |
|---|---|---|
| 1996-12-08 | Record daily snowfall | Record daily snowfall 45.7 cm (18.0 in) |
| 2001-02-06 | Record daily snowfall | Record daily snowfall 50.8 cm (20.0 in) |
| 2003-03-14 | Record snow depth | Record snow depth 48.3 cm (19.0 in) |
Wettest Day of Each Month
Aug: 311.2 mm (12.3 in)| Month | Record daily precipitation (mm) | Date |
|---|---|---|
| Jan | 61.2 mm (2.4 in) | 6 January 1949 |
| Feb | 56.9 mm (2.2 in) | 4 February 1970 |
| Mar | 56.9 mm (2.2 in) | 30 March 2014 |
| Apr | 71.1 mm (2.8 in) | 20 April 1983 |
| May | 91.4 mm (3.6 in) | 30 May 1984 |
| Jun | 134.6 mm (5.3 in) | 24 June 1944 |
| Jul | 94.7 mm (3.7 in) | 18 July 2018 |
| Aug | 311.2 mm (12.3 in) | 19 August 1955 |
| Sep | 138.7 mm (5.5 in) | 7 September 2008 |
| Oct | 159.5 mm (6.3 in) | 9 October 2005 |
| Nov | 67.6 mm (2.7 in) | 8 November 1943 |
| Dec | 88.9 mm (3.5 in) | 12 December 2008 |
Period of Record Coverage
1942 to 2026| Year | Days with data | Share of year | Complete |
|---|---|---|---|
| 1942 | 339 | 93% | Yes |
| 1943 | 330 | 90% | Yes |
| 1944 | 363 | 99% | Yes |
| 1945 | 365 | 100% | Yes |
| 1946 | 365 | 100% | Yes |
| 1947 | 363 | 99% | Yes |
| 1948 | 213 | 58% | No |
| 1950 | 30 | 8% | No |
| 1958 | 2 | 1% | No |
| 1968 | 31 | 8% | No |
| 1972 | 31 | 8% | No |
| 1974 | 60 | 16% | No |
| 1975 | 30 | 8% | No |
| 1976 | 59 | 16% | No |
| 1977 | 90 | 25% | No |
| 1978 | 28 | 8% | No |
| 1980 | 57 | 16% | No |
| 1981 | 60 | 16% | No |
| 2008 | 153 | 42% | No |
| 2009 | 364 | 100% | Yes |
| 2010 | 365 | 100% | Yes |
| 2011 | 365 | 100% | Yes |
| 2012 | 366 | 100% | Yes |
| 2013 | 365 | 100% | Yes |
| 2014 | 364 | 100% | Yes |
| 2015 | 364 | 100% | Yes |
| 2016 | 362 | 99% | Yes |
| 2017 | 365 | 100% | Yes |
| 2018 | 364 | 100% | Yes |
| 2019 | 365 | 100% | Yes |
| 2020 | 366 | 100% | Yes |
| 2021 | 365 | 100% | Yes |
| 2022 | 365 | 100% | Yes |
| 2023 | 365 | 100% | Yes |
| 2024 | 366 | 100% | Yes |
| 2025 | 365 | 100% | Yes |
| 2026 | 284 | 78% | No |
Latest Records
20| Date | Station | Record | Value | Beat old record by | Old record stood | Significance |
|---|---|---|---|---|---|---|
| 12 October 2026 | Belchertown, US | daily rain (Provisional) | 45.5 mm (1.8 in) | 0.8 mm (0.03 in) | 51 years | 23 of 100 (Routine) |
| 3 August 2026 | Belchertown, US | daily rain | 78.2 mm (3.1 in) | 49.2 mm (1.9 in) | 83 years | 59 of 100 (Notable) |
| 30 July 2026 | Belchertown, US | daily rain | 73.9 mm (2.9 in) | 34.5 mm (1.4 in) | 40 years | 47 of 100 (Notable) |
| 4 March 2026 | Belchertown, US | daily snow depth | 27.9 cm (11.0 in) | 5.0 cm (2.0 in) | 20 years | 17 of 100 (Routine) |
| 3 March 2026 | Belchertown, US | daily snow depth (Tie) | 25.4 cm (10.0 in) | tie | 20 years | 3 of 100 (Routine) |
| 28 February 2026 | Belchertown, US | daily snow depth | 27.9 cm (11.0 in) | 7.6 cm (3.0 in) | 19 years | 25 of 100 (Routine) |
| 27 February 2026 | Belchertown, US | daily snow depth | 27.9 cm (11.0 in) | 7.6 cm (3.0 in) | 19 years | 25 of 100 (Routine) |
| 26 February 2026 | Belchertown, US | daily snow depth | 30.5 cm (12.0 in) | 15.3 cm (6.0 in) | 36 years | 43 of 100 (Notable) |
| 25 February 2026 | Belchertown, US | daily snow depth | 27.9 cm (11.0 in) | 15.2 cm (6.0 in) | 67 years | 53 of 100 (Notable) |
| 24 February 2026 | Belchertown, US | daily snow depth | 27.9 cm (11.0 in) | 12.7 cm (5.0 in) | 19 years | 33 of 100 (Routine) |
| 23 February 2026 | Belchertown, US | daily snow depth | 22.9 cm (9.0 in) | 7.7 cm (3.0 in) | 19 years | 25 of 100 (Routine) |
| 23 February 2026 | Belchertown, US | daily snowfall (Tie) | 12.7 cm (5.0 in) | tie | 18 years | 3 of 100 (Routine) |
| 21 February 2026 | Belchertown, US | daily snow depth | 22.9 cm (9.0 in) | 5.1 cm (2.0 in) | 19 years | 21 of 100 (Routine) |
| 20 February 2026 | Belchertown, US | daily snow depth | 25.4 cm (10.0 in) | 5.1 cm (2.0 in) | 19 years | 21 of 100 (Routine) |
| 19 February 2026 | Belchertown, US | daily snow depth | 27.9 cm (11.0 in) | 7.6 cm (3.0 in) | 19 years | 25 of 100 (Routine) |
| 18 February 2026 | Belchertown, US | daily snow depth | 30.5 cm (12.0 in) | 10.2 cm (4.0 in) | 19 years | 29 of 100 (Routine) |
| 17 February 2026 | Belchertown, US | daily snow depth | 33.0 cm (13.0 in) | 12.7 cm (5.0 in) | 19 years | 33 of 100 (Routine) |
| 16 February 2026 | Belchertown, US | daily snow depth | 33.0 cm (13.0 in) | 12.7 cm (5.0 in) | 19 years | 33 of 100 (Routine) |
| 15 February 2026 | Belchertown, US | daily snow depth | 35.6 cm (14.0 in) | 10.2 cm (4.0 in) | 8 years | 26 of 100 (Routine) |
| 14 February 2026 | Belchertown, US | daily snow depth | 35.6 cm (14.0 in) | 10.2 cm (4.0 in) | 8 years | 26 of 100 (Routine) |
Climate Trend
21 complete years, 1944 to 2025| Year | Annual mean temperature | Difference from the station mean |
|---|---|---|
| 1944 | 8.6 C | -0.67 C |
| 1945 | 8.6 C | -0.65 C |
| 1946 | 9.3 C | +0.02 C |
| 1947 | 8.8 C | -0.45 C |
| 2009 | 8.3 C | -0.94 C |
| 2010 | 10.0 C | +0.72 C |
| 2011 | 9.5 C | +0.18 C |
| 2012 | 10.3 C | +0.99 C |
| 2013 | 8.9 C | -0.42 C |
| 2014 | 8.1 C | -1.20 C |
| 2015 | 8.5 C | -0.76 C |
| 2016 | 9.9 C | +0.62 C |
| 2017 | 9.1 C | -0.20 C |
| 2018 | 9.1 C | -0.14 C |
| 2019 | 8.7 C | -0.59 C |
| 2020 | 10.1 C | +0.86 C |
| 2021 | 9.7 C | +0.42 C |
| 2022 | 9.6 C | +0.29 C |
| 2023 | 10.3 C | +1.04 C |
| 2024 | 10.3 C | +0.97 C |
| 2025 | 9.2 C | -0.11 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| Measure | Record | Year of the record | Median year | Years with a value |
|---|---|---|---|---|
| Hottest day (TXx) | 38.3 C (100.9 F) | 1948 | 34.4 C (93.9 F) | 37 |
| Coldest night (TNn) | -30.6 C (-23.1 F) | 1943 | -21.1 C (-6.0 F) | 37 |
| Wettest day (Rx1day) | 311.2 mm (12.3 in) | 1955 | 62.7 mm (2.5 in) | 85 |
| Wettest five days (Rx5day) | 381.3 mm (15.0 in) | 1955 | 96.1 mm (3.8 in) | 85 |
| Longest dry spell (CDD) | 31 days | 1952 | 15 days | 85 |
Hottest day (TXx)
| Year | Hottest day (TXx) |
|---|---|
| 1942 | 35.0 C (95.0 F) |
| 1943 | 35.0 C (95.0 F) |
| 1944 | 37.8 C (100.0 F) |
| 1945 | 33.9 C (93.0 F) |
| 1946 | 35.6 C (96.1 F) |
| 1947 | 35.0 C (95.0 F) |
| 1948 | 38.3 C (100.9 F) |
| 1949 | n/a |
| 1950 | 33.9 C (93.0 F) |
| 1951 | n/a |
| 1952 | n/a |
| 1953 | n/a |
| 1954 | n/a |
| 1955 | n/a |
| 1956 | n/a |
| 1957 | n/a |
| 1958 | 2.2 C (36.0 F) |
| 1959 | n/a |
| 1960 | n/a |
| 1961 | n/a |
| 1962 | n/a |
| 1963 | n/a |
| 1964 | n/a |
| 1965 | n/a |
| 1966 | n/a |
| 1967 | n/a |
| 1968 | 8.3 C (46.9 F) |
| 1969 | n/a |
| 1970 | n/a |
| 1971 | n/a |
| 1972 | 29.4 C (84.9 F) |
| 1973 | n/a |
| 1974 | 24.4 C (75.9 F) |
| 1975 | 22.2 C (72.0 F) |
| 1976 | 32.2 C (90.0 F) |
| 1977 | 35.0 C (95.0 F) |
| 1978 | 3.3 C (37.9 F) |
| 1979 | n/a |
| 1980 | 34.4 C (93.9 F) |
| 1981 | 18.9 C (66.0 F) |
| 1982 | n/a |
| 1983 | n/a |
| 1984 | n/a |
| 1985 | n/a |
| 1986 | n/a |
| 1987 | n/a |
| 1988 | n/a |
| 1989 | n/a |
| 1990 | n/a |
| 1991 | n/a |
| 1992 | n/a |
| 1993 | n/a |
| 1994 | n/a |
| 1995 | n/a |
| 1996 | n/a |
| 1997 | n/a |
| 1998 | n/a |
| 1999 | n/a |
| 2000 | n/a |
| 2001 | n/a |
| 2002 | n/a |
| 2003 | n/a |
| 2004 | n/a |
| 2005 | n/a |
| 2006 | n/a |
| 2007 | n/a |
| 2008 | 30.0 C (86.0 F) |
| 2009 | 33.3 C (91.9 F) |
| 2010 | 35.6 C (96.1 F) |
| 2011 | 37.2 C (99.0 F) |
| 2012 | 34.4 C (93.9 F) |
| 2013 | 34.4 C (93.9 F) |
| 2014 | 31.1 C (88.0 F) |
| 2015 | 33.9 C (93.0 F) |
| 2016 | 35.0 C (95.0 F) |
| 2017 | 34.4 C (93.9 F) |
| 2018 | 35.6 C (96.1 F) |
| 2019 | 34.4 C (93.9 F) |
| 2020 | 35.6 C (96.1 F) |
| 2021 | 35.6 C (96.1 F) |
| 2022 | 34.4 C (93.9 F) |
| 2023 | 33.3 C (91.9 F) |
| 2024 | 33.3 C (91.9 F) |
| 2025 | 36.7 C (98.1 F) |
| 2026 | 35.6 C (96.1 F) |
Coldest night (TNn)
| Year | Coldest night (TNn) |
|---|---|
| 1942 | -27.2 C (-17.0 F) |
| 1943 | -30.6 C (-23.1 F) |
| 1944 | -21.1 C (-6.0 F) |
| 1945 | -23.9 C (-11.0 F) |
| 1946 | -23.3 C (-9.9 F) |
| 1947 | -19.4 C (-2.9 F) |
| 1948 | -26.1 C (-15.0 F) |
| 1949 | n/a |
| 1950 | 2.8 C (37.0 F) |
| 1951 | n/a |
| 1952 | n/a |
| 1953 | n/a |
| 1954 | n/a |
| 1955 | n/a |
| 1956 | n/a |
| 1957 | n/a |
| 1958 | -11.1 C (12.0 F) |
| 1959 | n/a |
| 1960 | n/a |
| 1961 | n/a |
| 1962 | n/a |
| 1963 | n/a |
| 1964 | n/a |
| 1965 | n/a |
| 1966 | n/a |
| 1967 | n/a |
| 1968 | -27.8 C (-18.0 F) |
| 1969 | n/a |
| 1970 | n/a |
| 1971 | n/a |
| 1972 | 0.0 C (32.0 F) |
| 1973 | n/a |
| 1974 | -10.0 C (14.0 F) |
| 1975 | -3.9 C (25.0 F) |
| 1976 | -7.8 C (18.0 F) |
| 1977 | -20.0 C (-4.0 F) |
| 1978 | -21.1 C (-6.0 F) |
| 1979 | n/a |
| 1980 | -3.9 C (25.0 F) |
| 1981 | -24.4 C (-11.9 F) |
| 1982 | n/a |
| 1983 | n/a |
| 1984 | n/a |
| 1985 | n/a |
| 1986 | n/a |
| 1987 | n/a |
| 1988 | n/a |
| 1989 | n/a |
| 1990 | n/a |
| 1991 | n/a |
| 1992 | n/a |
| 1993 | n/a |
| 1994 | n/a |
| 1995 | n/a |
| 1996 | n/a |
| 1997 | n/a |
| 1998 | n/a |
| 1999 | n/a |
| 2000 | n/a |
| 2001 | n/a |
| 2002 | n/a |
| 2003 | n/a |
| 2004 | n/a |
| 2005 | n/a |
| 2006 | n/a |
| 2007 | n/a |
| 2008 | -15.6 C (3.9 F) |
| 2009 | -22.2 C (-8.0 F) |
| 2010 | -17.8 C (0.0 F) |
| 2011 | -25.6 C (-14.1 F) |
| 2012 | -20.0 C (-4.0 F) |
| 2013 | -21.1 C (-6.0 F) |
| 2014 | -23.3 C (-9.9 F) |
| 2015 | -24.4 C (-11.9 F) |
| 2016 | -26.1 C (-15.0 F) |
| 2017 | -20.0 C (-4.0 F) |
| 2018 | -25.0 C (-13.0 F) |
| 2019 | -23.3 C (-9.9 F) |
| 2020 | -16.7 C (1.9 F) |
| 2021 | -18.3 C (-0.9 F) |
| 2022 | -21.1 C (-6.0 F) |
| 2023 | -25.0 C (-13.0 F) |
| 2024 | -18.9 C (-2.0 F) |
| 2025 | -22.8 C (-9.0 F) |
| 2026 | -21.7 C (-7.1 F) |
Wettest day (Rx1day)
| Year | Wettest day (Rx1day) |
|---|---|
| 1942 | 54.9 mm (2.2 in) |
| 1943 | 67.6 mm (2.7 in) |
| 1944 | 134.6 mm (5.3 in) |
| 1945 | 63.0 mm (2.5 in) |
| 1946 | 53.1 mm (2.1 in) |
| 1947 | 38.1 mm (1.5 in) |
| 1948 | 62.2 mm (2.4 in) |
| 1949 | 61.2 mm (2.4 in) |
| 1950 | 63.5 mm (2.5 in) |
| 1951 | 64.8 mm (2.6 in) |
| 1952 | 68.6 mm (2.7 in) |
| 1953 | 50.5 mm (2.0 in) |
| 1954 | 52.3 mm (2.1 in) |
| 1955 | 311.2 mm (12.3 in) |
| 1956 | 78.7 mm (3.1 in) |
| 1957 | 43.2 mm (1.7 in) |
| 1958 | 50.3 mm (2.0 in) |
| 1959 | 82.0 mm (3.2 in) |
| 1960 | 82.3 mm (3.2 in) |
| 1961 | 43.4 mm (1.7 in) |
| 1962 | 47.5 mm (1.9 in) |
| 1963 | 92.7 mm (3.6 in) |
| 1964 | 28.7 mm (1.1 in) |
| 1965 | 33.0 mm (1.3 in) |
| 1966 | 54.4 mm (2.1 in) |
| 1967 | 54.1 mm (2.1 in) |
| 1968 | 51.3 mm (2.0 in) |
| 1969 | 81.8 mm (3.2 in) |
| 1970 | 56.9 mm (2.2 in) |
| 1971 | 75.2 mm (3.0 in) |
| 1972 | 53.3 mm (2.1 in) |
| 1973 | 52.3 mm (2.1 in) |
| 1974 | 63.5 mm (2.5 in) |
| 1975 | 82.6 mm (3.3 in) |
| 1976 | 48.3 mm (1.9 in) |
| 1977 | 62.2 mm (2.4 in) |
| 1978 | 81.5 mm (3.2 in) |
| 1979 | 56.6 mm (2.2 in) |
| 1980 | 59.7 mm (2.4 in) |
| 1981 | 39.9 mm (1.6 in) |
| 1982 | 68.1 mm (2.7 in) |
| 1983 | 71.1 mm (2.8 in) |
| 1984 | 91.4 mm (3.6 in) |
| 1985 | 90.2 mm (3.6 in) |
| 1986 | 100.1 mm (3.9 in) |
| 1987 | 49.5 mm (1.9 in) |
| 1988 | 61.5 mm (2.4 in) |
| 1989 | 83.8 mm (3.3 in) |
| 1990 | 59.7 mm (2.4 in) |
| 1991 | 80.5 mm (3.2 in) |
| 1992 | 45.7 mm (1.8 in) |
| 1993 | 56.6 mm (2.2 in) |
| 1994 | 89.2 mm (3.5 in) |
| 1995 | 89.7 mm (3.5 in) |
| 1996 | 68.1 mm (2.7 in) |
| 1997 | 59.2 mm (2.3 in) |
| 1998 | 62.5 mm (2.5 in) |
| 1999 | 102.4 mm (4.0 in) |
| 2000 | 146.1 mm (5.8 in) |
| 2001 | 106.9 mm (4.2 in) |
| 2002 | 45.7 mm (1.8 in) |
| 2003 | 48.8 mm (1.9 in) |
| 2004 | 69.1 mm (2.7 in) |
| 2005 | 159.5 mm (6.3 in) |
| 2006 | 35.6 mm (1.4 in) |
| 2007 | 62.7 mm (2.5 in) |
| 2008 | 138.7 mm (5.5 in) |
| 2009 | 64.3 mm (2.5 in) |
| 2010 | 48.8 mm (1.9 in) |
| 2011 | 64.5 mm (2.5 in) |
| 2012 | 39.4 mm (1.6 in) |
| 2013 | 66.3 mm (2.6 in) |
| 2014 | 56.9 mm (2.2 in) |
| 2015 | 45.0 mm (1.8 in) |
| 2016 | 43.7 mm (1.7 in) |
| 2017 | 97.0 mm (3.8 in) |
| 2018 | 94.7 mm (3.7 in) |
| 2019 | 72.6 mm (2.9 in) |
| 2020 | 60.2 mm (2.4 in) |
| 2021 | 107.7 mm (4.2 in) |
| 2022 | 61.0 mm (2.4 in) |
| 2023 | 72.6 mm (2.9 in) |
| 2024 | 63.2 mm (2.5 in) |
| 2025 | 51.8 mm (2.0 in) |
| 2026 | 78.2 mm (3.1 in) |
Wettest five days (Rx5day)
| Year | Wettest five days (Rx5day) |
|---|---|
| 1942 | 90.8 mm (3.6 in) |
| 1943 | 90.2 mm (3.6 in) |
| 1944 | 159.8 mm (6.3 in) |
| 1945 | 81.1 mm (3.2 in) |
| 1946 | 82.2 mm (3.2 in) |
| 1947 | 106.7 mm (4.2 in) |
| 1948 | 77.7 mm (3.1 in) |
| 1949 | 65.3 mm (2.6 in) |
| 1950 | 67.8 mm (2.7 in) |
| 1951 | 87.0 mm (3.4 in) |
| 1952 | 82.1 mm (3.2 in) |
| 1953 | 125.8 mm (5.0 in) |
| 1954 | 93.7 mm (3.7 in) |
| 1955 | 381.3 mm (15.0 in) |
| 1956 | 82.0 mm (3.2 in) |
| 1957 | 75.3 mm (3.0 in) |
| 1958 | 90.9 mm (3.6 in) |
| 1959 | 108.7 mm (4.3 in) |
| 1960 | 117.9 mm (4.6 in) |
| 1961 | 53.9 mm (2.1 in) |
| 1962 | 74.5 mm (2.9 in) |
| 1963 | 115.1 mm (4.5 in) |
| 1964 | 48.1 mm (1.9 in) |
| 1965 | 45.3 mm (1.8 in) |
| 1966 | 58.4 mm (2.3 in) |
| 1967 | 83.3 mm (3.3 in) |
| 1968 | 78.8 mm (3.1 in) |
| 1969 | 106.7 mm (4.2 in) |
| 1970 | 92.6 mm (3.6 in) |
| 1971 | 84.0 mm (3.3 in) |
| 1972 | 80.5 mm (3.2 in) |
| 1973 | 104.3 mm (4.1 in) |
| 1974 | 91.7 mm (3.6 in) |
| 1975 | 176.6 mm (7.0 in) |
| 1976 | 99.9 mm (3.9 in) |
| 1977 | 81.6 mm (3.2 in) |
| 1978 | 130.1 mm (5.1 in) |
| 1979 | 117.6 mm (4.6 in) |
| 1980 | 83.6 mm (3.3 in) |
| 1981 | 72.4 mm (2.9 in) |
| 1982 | 123.9 mm (4.9 in) |
| 1983 | 108.2 mm (4.3 in) |
| 1984 | 219.6 mm (8.6 in) |
| 1985 | 95.6 mm (3.8 in) |
| 1986 | 147.8 mm (5.8 in) |
| 1987 | 92.0 mm (3.6 in) |
| 1988 | 71.9 mm (2.8 in) |
| 1989 | 137.9 mm (5.4 in) |
| 1990 | 145.3 mm (5.7 in) |
| 1991 | 131.3 mm (5.2 in) |
| 1992 | 76.3 mm (3.0 in) |
| 1993 | 70.3 mm (2.8 in) |
| 1994 | 140.8 mm (5.5 in) |
| 1995 | 110.8 mm (4.4 in) |
| 1996 | 98.2 mm (3.9 in) |
| 1997 | 65.3 mm (2.6 in) |
| 1998 | 95.0 mm (3.7 in) |
| 1999 | 135.3 mm (5.3 in) |
| 2000 | 154.8 mm (6.1 in) |
| 2001 | 111.0 mm (4.4 in) |
| 2002 | 63.2 mm (2.5 in) |
| 2003 | 90.2 mm (3.6 in) |
| 2004 | 104.7 mm (4.1 in) |
| 2005 | 194.3 mm (7.6 in) |
| 2006 | 62.8 mm (2.5 in) |
| 2007 | 98.5 mm (3.9 in) |
| 2008 | 174.2 mm (6.9 in) |
| 2009 | 101.9 mm (4.0 in) |
| 2010 | 96.1 mm (3.8 in) |
| 2011 | 128.5 mm (5.1 in) |
| 2012 | 95.3 mm (3.8 in) |
| 2013 | 108.3 mm (4.3 in) |
| 2014 | 107.2 mm (4.2 in) |
| 2015 | 81.5 mm (3.2 in) |
| 2016 | 57.2 mm (2.3 in) |
| 2017 | 140.4 mm (5.5 in) |
| 2018 | 98.0 mm (3.9 in) |
| 2019 | 94.9 mm (3.7 in) |
| 2020 | 92.7 mm (3.6 in) |
| 2021 | 115.3 mm (4.5 in) |
| 2022 | 108.5 mm (4.3 in) |
| 2023 | 112.0 mm (4.4 in) |
| 2024 | 99.1 mm (3.9 in) |
| 2025 | 99.6 mm (3.9 in) |
| 2026 | 152.6 mm (6.0 in) |
Longest dry spell (CDD)
| Year | Longest dry spell (CDD) |
|---|---|
| 1942 | 13 days |
| 1943 | 19 days |
| 1944 | 18 days |
| 1945 | 14 days |
| 1946 | 15 days |
| 1947 | 25 days |
| 1948 | 25 days |
| 1949 | 15 days |
| 1950 | 24 days |
| 1951 | 14 days |
| 1952 | 31 days |
| 1953 | 16 days |
| 1954 | 10 days |
| 1955 | 24 days |
| 1956 | 15 days |
| 1957 | 14 days |
| 1958 | 14 days |
| 1959 | 11 days |
| 1960 | 19 days |
| 1961 | 18 days |
| 1962 | 18 days |
| 1963 | 23 days |
| 1964 | 14 days |
| 1965 | 15 days |
| 1966 | 13 days |
| 1967 | 12 days |
| 1968 | 21 days |
| 1969 | 15 days |
| 1970 | 17 days |
| 1971 | 17 days |
| 1972 | 9 days |
| 1973 | 15 days |
| 1974 | 12 days |
| 1975 | 15 days |
| 1976 | 17 days |
| 1977 | 14 days |
| 1978 | 15 days |
| 1979 | 13 days |
| 1980 | 23 days |
| 1981 | 18 days |
| 1982 | 19 days |
| 1983 | 19 days |
| 1984 | 18 days |
| 1985 | 13 days |
| 1986 | 14 days |
| 1987 | 19 days |
| 1988 | 14 days |
| 1989 | 12 days |
| 1990 | 14 days |
| 1991 | 18 days |
| 1992 | 11 days |
| 1993 | 13 days |
| 1994 | 10 days |
| 1995 | 24 days |
| 1996 | 13 days |
| 1997 | 18 days |
| 1998 | 13 days |
| 1999 | 18 days |
| 2000 | 11 days |
| 2001 | 20 days |
| 2002 | 13 days |
| 2003 | 17 days |
| 2004 | 25 days |
| 2005 | 13 days |
| 2006 | 17 days |
| 2007 | 22 days |
| 2008 | 10 days |
| 2009 | 13 days |
| 2010 | 17 days |
| 2011 | 11 days |
| 2012 | 19 days |
| 2013 | 13 days |
| 2014 | 18 days |
| 2015 | 25 days |
| 2016 | 17 days |
| 2017 | 14 days |
| 2018 | 15 days |
| 2019 | 11 days |
| 2020 | 19 days |
| 2021 | 17 days |
| 2022 | 10 days |
| 2023 | 13 days |
| 2024 | 26 days |
| 2025 | 15 days |
| 2026 | 10 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
21 years with a frostAcross 21 years with a frost, the median last spring frost at Belchertown falls on 30 April and the median first autumn frost on 15 October, which leaves a median of 170 days between them.
| Measure | Median, all years | Earliest period | Recent period (1944 to 2025) | Recent against earliest | Fitted trend |
|---|---|---|---|---|---|
| Last spring frost | 30 April | n/a | 30 April | n/a | n/a |
| First autumn frost | 15 October | n/a | 15 October | n/a | n/a |
| Growing days | 170 days | n/a | 170 days | n/a | n/a |
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.
Rainfall Return Levels
84 years, 1942 to 2025A day with at least 61.8 mm (2.4 in) of rain is expected about once in 2 years. A day with at least 204.9 mm (8.1 in) of rain is expected about once in 100 years.
| Expected about once in | A day with at least | Note |
|---|---|---|
| 2 years | 61.8 mm (2.4 in) | |
| 5 years | 85.5 mm (3.4 in) | |
| 10 years | 105.8 mm (4.2 in) | |
| 25 years | 138.3 mm (5.4 in) | |
| 50 years | 168.5 mm (6.6 in) | |
| 100 years | 204.9 mm (8.1 in) | Longer than the 84 years of record |
The levels come from a generalised extreme value (GEV) distribution fitted by L-moments to the wettest-day total of each year, 84 years of values from 1942 to 2025.
A return level is an estimate. It is least reliable for the long periods, 50 and 100 years, and for any period longer than the record behind the fit, where the fit has to reach past the largest day actually observed. It is not a forecast.
The largest wettest-day totals in the fit: 311.2 mm (12.3 in) in 1955; 159.5 mm (6.3 in) in 2005; 146.1 mm (5.8 in) in 2000.
Download the Data
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).