Nantucket Mem AP Weather Records (USW00014756)
Record envelope, standing records and threshold days for Nantucket Mem AP (USW00014756), Massachusetts, United States, with 79 years of record.
Key Facts for Nantucket Mem AP
- Nantucket Mem AP (USW00014756) is a weather station in Massachusetts, United States at 41.25 latitude and -70.06 longitude, 11 m (37 ft) above sea level.
- The station reports from 1948 to 2026, 79 years of record.
- 1,464 records set at Nantucket Mem AP still stand.
- Records are tracked for tmax, tmin, prcp: an element needs 30 years of data to be eligible.
- Nantucket Mem AP set a daily record precipitation of 48.3 mm (1.9 in) on 13 September 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, 41.25 latitude, -70.06 longitude.
- Elevation: 11 m (37 ft).
- Period of record: 1948 to 2026, 79 years.
- Eligible elements: tmax, tmin, prcp.
Daily Record Envelope and 2026
12 days at or beyond a record| Month | Highest record high | Lowest record low | 2026 highest maximum | 2026 lowest minimum |
|---|---|---|---|---|
| Jan | 17.2 C (63.0 F) | -19.4 C (-2.9 F) | 9.4 C (48.9 F) | -12.8 C (9.0 F) |
| Feb | 16.1 C (61.0 F) | -19.3 C (-2.7 F) | 5.6 C (42.1 F) | -11.7 C (10.9 F) |
| Mar | 18.9 C (66.0 F) | -13.9 C (7.0 F) | 12.8 C (55.0 F) | -10.0 C (14.0 F) |
| Apr | 28.3 C (82.9 F) | -6.7 C (19.9 F) | 20.6 C (69.1 F) | -5.6 C (21.9 F) |
| May | 29.4 C (84.9 F) | -2.2 C (28.0 F) | 22.8 C (73.0 F) | 5.0 C (41.0 F) |
| Jun | 33.3 C (91.9 F) | 1.7 C (35.1 F) | 27.8 C (82.0 F) | 4.4 C (39.9 F) |
| Jul | 33.3 C (91.9 F) | 8.3 C (46.9 F) | 31.1 C (88.0 F) | 12.2 C (54.0 F) |
| Aug | 37.8 C (100.0 F) | 3.9 C (39.0 F) | 27.8 C (82.0 F) | 13.3 C (55.9 F) |
| Sep | 30.0 C (86.0 F) | 1.1 C (34.0 F) | 26.1 C (79.0 F) | 8.9 C (48.0 F) |
| Oct | 28.3 C (82.9 F) | -5.6 C (21.9 F) | 22.2 C (72.0 F) | 3.9 C (39.0 F) |
| Nov | 23.3 C (73.9 F) | -8.9 C (16.0 F) | n/a | n/a |
| Dec | 18.9 C (66.0 F) | -19.4 C (-2.9 F) | n/a | n/a |
Which Years Hold Standing Records
1,464 standing records| Year set | Standing records |
|---|---|
| 1948 | 20 |
| 1949 | 23 |
| 1950 | 37 |
| 1951 | 11 |
| 1952 | 9 |
| 1953 | 15 |
| 1954 | 22 |
| 1955 | 21 |
| 1956 | 19 |
| 1957 | 13 |
| 1958 | 20 |
| 1959 | 20 |
| 1960 | 10 |
| 1961 | 15 |
| 1962 | 23 |
| 1963 | 12 |
| 1964 | 23 |
| 1965 | 31 |
| 1966 | 27 |
| 1967 | 38 |
| 1968 | 32 |
| 1969 | 17 |
| 1970 | 18 |
| 1971 | 58 |
| 1972 | 36 |
| 1973 | 31 |
| 1974 | 36 |
| 1975 | 43 |
| 1976 | 32 |
| 1977 | 31 |
| 1978 | 18 |
| 1979 | 39 |
| 1980 | 9 |
| 1981 | 25 |
| 1982 | 19 |
| 1998 | 9 |
| 1999 | 10 |
| 2000 | 19 |
| 2001 | 14 |
| 2002 | 21 |
| 2003 | 11 |
| 2004 | 16 |
| 2005 | 15 |
| 2006 | 14 |
| 2007 | 24 |
| 2008 | 21 |
| 2009 | 19 |
| 2010 | 26 |
| 2011 | 18 |
| 2012 | 26 |
| 2013 | 12 |
| 2014 | 10 |
| 2015 | 38 |
| 2016 | 33 |
| 2017 | 32 |
| 2018 | 21 |
| 2019 | 11 |
| 2020 | 21 |
| 2021 | 54 |
| 2022 | 57 |
| 2023 | 18 |
| 2024 | 17 |
| 2025 | 13 |
| 2026 | 11 |
All-Time Record Progression
1 new records| Date | Kind | Detail |
|---|---|---|
| 2022-08-08 | Record high minimum temperature | Record high minimum temperature 25.0 C (77.0 F) |
Wettest Day of Each Month
May: 164.6 mm (6.5 in)| Month | Record daily precipitation (mm) | Date |
|---|---|---|
| Jan | 68.6 mm (2.7 in) | 9 January 1953 |
| Feb | 56.1 mm (2.2 in) | 8 February 1953 |
| Mar | 138.9 mm (5.5 in) | 2 March 2018 |
| Apr | 80.5 mm (3.2 in) | 7 April 1953 |
| May | 164.6 mm (6.5 in) | 25 May 1967 |
| Jun | 76.5 mm (3.0 in) | 7 June 2006 |
| Jul | 111.0 mm (4.4 in) | 4 July 1978 |
| Aug | 91.2 mm (3.6 in) | 29 August 2009 |
| Sep | 126.5 mm (5.0 in) | 3 September 1972 |
| Oct | 94.7 mm (3.7 in) | 9 October 2016 |
| Nov | 125.2 mm (4.9 in) | 3 November 1966 |
| Dec | 108.0 mm (4.3 in) | 26 December 1969 |
Period of Record Coverage
1948 to 2026| Year | Days with data | Share of year | Complete |
|---|---|---|---|
| 1948 | 364 | 99% | Yes |
| 1949 | 365 | 100% | Yes |
| 1950 | 365 | 100% | Yes |
| 1951 | 365 | 100% | Yes |
| 1952 | 366 | 100% | Yes |
| 1953 | 365 | 100% | Yes |
| 1954 | 365 | 100% | Yes |
| 1955 | 364 | 100% | Yes |
| 1956 | 366 | 100% | Yes |
| 1957 | 365 | 100% | Yes |
| 1958 | 365 | 100% | Yes |
| 1959 | 365 | 100% | Yes |
| 1960 | 366 | 100% | Yes |
| 1961 | 365 | 100% | Yes |
| 1962 | 365 | 100% | Yes |
| 1963 | 365 | 100% | Yes |
| 1964 | 366 | 100% | Yes |
| 1965 | 365 | 100% | Yes |
| 1966 | 365 | 100% | Yes |
| 1967 | 365 | 100% | Yes |
| 1968 | 366 | 100% | Yes |
| 1969 | 365 | 100% | Yes |
| 1970 | 361 | 99% | Yes |
| 1971 | 365 | 100% | Yes |
| 1972 | 366 | 100% | Yes |
| 1973 | 365 | 100% | Yes |
| 1974 | 359 | 98% | Yes |
| 1975 | 359 | 98% | Yes |
| 1976 | 362 | 99% | Yes |
| 1977 | 361 | 99% | Yes |
| 1978 | 353 | 97% | Yes |
| 1979 | 349 | 96% | Yes |
| 1980 | 365 | 100% | Yes |
| 1981 | 365 | 100% | Yes |
| 1982 | 273 | 75% | No |
| 1998 | 361 | 99% | Yes |
| 1999 | 363 | 99% | Yes |
| 2000 | 365 | 100% | Yes |
| 2001 | 342 | 94% | Yes |
| 2002 | 357 | 98% | Yes |
| 2003 | 362 | 99% | Yes |
| 2004 | 366 | 100% | Yes |
| 2005 | 362 | 99% | Yes |
| 2006 | 365 | 100% | Yes |
| 2007 | 365 | 100% | Yes |
| 2008 | 365 | 100% | Yes |
| 2009 | 363 | 99% | Yes |
| 2010 | 365 | 100% | Yes |
| 2011 | 365 | 100% | Yes |
| 2012 | 364 | 99% | Yes |
| 2013 | 363 | 99% | Yes |
| 2014 | 363 | 99% | Yes |
| 2015 | 350 | 96% | Yes |
| 2016 | 365 | 100% | Yes |
| 2017 | 364 | 100% | Yes |
| 2018 | 365 | 100% | Yes |
| 2019 | 361 | 99% | Yes |
| 2020 | 328 | 90% | No |
| 2021 | 322 | 88% | No |
| 2022 | 358 | 98% | Yes |
| 2023 | 362 | 99% | Yes |
| 2024 | 366 | 100% | Yes |
| 2025 | 356 | 98% | Yes |
| 2026 | 283 | 78% | No |
Latest Records
20| Date | Station | Record | Value | Beat old record by | Old record stood | Significance |
|---|---|---|---|---|---|---|
| 13 September 2026 | Nantucket Mem AP, US | daily rain (Provisional) | 48.3 mm (1.9 in) | 1.1 mm (0.04 in) | 60 years | 25 of 100 (Routine) |
| 25 July 2026 | Nantucket Mem AP, US | daily low min (Tie) | 12.8 C (55.0 F) | tie | 72 years | 7 of 100 (Routine) |
| 7 July 2026 | Nantucket Mem AP, US | daily rain | 13.2 mm (0.5 in) | 0.5 mm (0.02 in) | 8 years | 9 of 100 (Routine) |
| 4 July 2026 | Nantucket Mem AP, US | daily high min | 21.7 C (71.1 F) | 1.7 C (3.1 F) | 27 years | 21 of 100 (Routine) |
| 3 July 2026 | Nantucket Mem AP, US | daily high max | 31.1 C (88.0 F) | 0.5 C (0.9 F) | 51 years | 23 of 100 (Routine) |
| 3 July 2026 | Nantucket Mem AP, US | daily high min | 20.0 C (68.0 F) | 0.6 C (1.1 F) | 27 years | 17 of 100 (Routine) |
| 15 June 2026 | Nantucket Mem AP, US | daily high max | 26.1 C (79.0 F) | 1.1 C (2.0 F) | 48 years | 24 of 100 (Routine) |
| 15 June 2026 | Nantucket Mem AP, US | daily high min (Tie) | 17.2 C (63.0 F) | tie | 56 years | 6 of 100 (Routine) |
| 13 June 2026 | Nantucket Mem AP, US | daily high max | 27.8 C (82.0 F) | 1.7 C (3.1 F) | 69 years | 32 of 100 (Routine) |
| 2 June 2026 | Nantucket Mem AP, US | daily low min | 4.4 C (39.9 F) | 2.3 C (4.1 F) | 76 years | 38 of 100 (Notable) |
| 1 June 2026 | Nantucket Mem AP, US | daily low min | 5.6 C (42.1 F) | 0.5 C (0.9 F) | 59 years | 25 of 100 (Routine) |
| 17 May 2026 | Nantucket Mem AP, US | daily high min (Tie) | 12.2 C (54.0 F) | tie | 4 years | 2 of 100 (Routine) |
| 6 May 2026 | Nantucket Mem AP, US | daily high min (Tie) | 11.1 C (52.0 F) | tie | 16 years | 2 of 100 (Routine) |
| 24 April 2026 | Nantucket Mem AP, US | daily low min (Tie) | -0.6 C (30.9 F) | tie | 55 years | 5 of 100 (Routine) |
| 16 April 2026 | Nantucket Mem AP, US | daily high max | 20.0 C (68.0 F) | 2.2 C (4.0 F) | 3 years | 13 of 100 (Routine) |
| 15 April 2026 | Nantucket Mem AP, US | daily high max | 20.6 C (69.1 F) | 2.8 C (5.0 F) | 4 years | 16 of 100 (Routine) |
| 9 April 2026 | Nantucket Mem AP, US | daily low min | -5.6 C (21.9 F) | 0.6 C (1.1 F) | 59 years | 25 of 100 (Routine) |
| 9 March 2026 | Nantucket Mem AP, US | daily high max (Tie) | 12.8 C (55.0 F) | tie | 9 years | 2 of 100 (Routine) |
| 2 March 2026 | Nantucket Mem AP, US | daily low min (Tie) | -10.0 C (14.0 F) | tie | 76 years | 7 of 100 (Routine) |
| 24 February 2026 | Nantucket Mem AP, US | daily low max (Tie) | -1.1 C (30.0 F) | tie | 58 years | 6 of 100 (Routine) |
Climate Trend
56 complete years, 1948 to 2024| Year | Annual mean temperature | Difference from the station mean |
|---|---|---|
| 1948 | 9.4 C | -0.62 C |
| 1949 | 10.8 C | +0.74 C |
| 1950 | 9.6 C | -0.42 C |
| 1951 | 10.5 C | +0.49 C |
| 1952 | 10.3 C | +0.29 C |
| 1953 | 10.6 C | +0.59 C |
| 1954 | 9.8 C | -0.23 C |
| 1955 | 9.2 C | -0.85 C |
| 1956 | 9.4 C | -0.69 C |
| 1957 | 10.1 C | +0.06 C |
| 1958 | 8.9 C | -1.18 C |
| 1959 | 9.6 C | -0.47 C |
| 1960 | 9.4 C | -0.63 C |
| 1961 | 9.4 C | -0.67 C |
| 1962 | 9.2 C | -0.82 C |
| 1963 | 9.5 C | -0.58 C |
| 1964 | 9.5 C | -0.50 C |
| 1965 | 8.7 C | -1.32 C |
| 1966 | 8.8 C | -1.22 C |
| 1967 | 8.6 C | -1.40 C |
| 1968 | 9.4 C | -0.67 C |
| 1969 | 10.2 C | +0.14 C |
| 1970 | 9.8 C | -0.21 C |
| 1971 | 10.5 C | +0.49 C |
| 1972 | 8.7 C | -1.32 C |
| 1973 | 9.4 C | -0.65 C |
| 1974 | 9.5 C | -0.56 C |
| 1975 | 10.7 C | +0.64 C |
| 1976 | 9.5 C | -0.51 C |
| 1977 | 9.9 C | -0.18 C |
| 1979 | 10.4 C | +0.31 C |
| 1980 | 9.7 C | -0.35 C |
| 1981 | 9.4 C | -0.62 C |
| 1998 | 10.6 C | +0.59 C |
| 1999 | 10.8 C | +0.77 C |
| 2000 | 9.7 C | -0.37 C |
| 2002 | 10.6 C | +0.56 C |
| 2003 | 9.6 C | -0.47 C |
| 2004 | 9.6 C | -0.48 C |
| 2005 | 9.9 C | -0.12 C |
| 2006 | 10.8 C | +0.78 C |
| 2007 | 10.0 C | -0.04 C |
| 2008 | 10.3 C | +0.24 C |
| 2009 | 9.8 C | -0.25 C |
| 2010 | 10.8 C | +0.78 C |
| 2011 | 10.9 C | +0.81 C |
| 2012 | 11.7 C | +1.70 C |
| 2013 | 10.5 C | +0.48 C |
| 2014 | 10.2 C | +0.15 C |
| 2016 | 11.5 C | +1.42 C |
| 2017 | 10.8 C | +0.74 C |
| 2018 | 10.5 C | +0.45 C |
| 2019 | 10.3 C | +0.28 C |
| 2022 | 12.5 C | +2.44 C |
| 2023 | 11.5 C | +1.44 C |
| 2024 | 11.2 C | +1.16 C |
The annual mean temperature here has risen by 0.2 C (0.1 to 0.3) per decade over 1948 to 2024. In Fahrenheit: 0.4 F (0.2 to 0.5) per decade. The slope is a straight line fitted to 56 complete years; the brackets give its 95 percent interval.
| Measure | Per decade (C) | Per decade (F) | Period | Complete years | Reading |
|---|---|---|---|---|---|
| Annual mean temperature | 0.2 C (0.1 to 0.3) per decade | 0.4 F (0.2 to 0.5) per decade | 1948 to 2024 | 56 | Rise |
| Mean daily maximum | 0.2 C (0.1 to 0.2) per decade | 0.3 F (0.2 to 0.4) per decade | 1948 to 2024 | 56 | Rise |
| Mean daily minimum | 0.2 C (0.1 to 0.3) per decade | 0.4 F (0.2 to 0.5) per decade | 1948 to 2024 | 56 | Rise |
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
1948 to 2026| Measure | Record | Year of the record | Median year | Years with a value |
|---|---|---|---|---|
| Hottest day (TXx) | 37.8 C (100.0 F) | 1975 | 30.6 C (87.1 F) | 64 |
| Coldest night (TNn) | -19.4 C (-2.9 F) | 1962 | -14.3 C (6.3 F) | 64 |
| Wettest day (Rx1day) | 164.6 mm (6.5 in) | 1967 | 60.2 mm (2.4 in) | 64 |
| Wettest five days (Rx5day) | 216.2 mm (8.5 in) | 2004 | 90.3 mm (3.6 in) | 64 |
| Longest dry spell (CDD) | 46 days | 2021 | 19 days | 64 |
Hottest day (TXx)
| Year | Hottest day (TXx) |
|---|---|
| 1948 | 35.0 C (95.0 F) |
| 1949 | 33.3 C (91.9 F) |
| 1950 | 27.2 C (81.0 F) |
| 1951 | 28.9 C (84.0 F) |
| 1952 | 31.7 C (89.1 F) |
| 1953 | 30.0 C (86.0 F) |
| 1954 | 27.2 C (81.0 F) |
| 1955 | 30.6 C (87.1 F) |
| 1956 | 30.6 C (87.1 F) |
| 1957 | 30.0 C (86.0 F) |
| 1958 | 25.6 C (78.1 F) |
| 1959 | 31.1 C (88.0 F) |
| 1960 | 26.7 C (80.1 F) |
| 1961 | 28.9 C (84.0 F) |
| 1962 | 27.8 C (82.0 F) |
| 1963 | 31.1 C (88.0 F) |
| 1964 | 33.3 C (91.9 F) |
| 1965 | 29.4 C (84.9 F) |
| 1966 | 31.1 C (88.0 F) |
| 1967 | 27.8 C (82.0 F) |
| 1968 | 32.2 C (90.0 F) |
| 1969 | 32.2 C (90.0 F) |
| 1970 | 30.6 C (87.1 F) |
| 1971 | 31.1 C (88.0 F) |
| 1972 | 30.0 C (86.0 F) |
| 1973 | 30.6 C (87.1 F) |
| 1974 | 29.4 C (84.9 F) |
| 1975 | 37.8 C (100.0 F) |
| 1976 | 33.3 C (91.9 F) |
| 1977 | 32.8 C (91.0 F) |
| 1978 | 32.2 C (90.0 F) |
| 1979 | 31.1 C (88.0 F) |
| 1980 | 28.9 C (84.0 F) |
| 1981 | 30.0 C (86.0 F) |
| 1982 | 27.8 C (82.0 F) |
| 1998 | 28.9 C (84.0 F) |
| 1999 | 32.2 C (90.0 F) |
| 2000 | 27.8 C (82.0 F) |
| 2001 | 31.1 C (88.0 F) |
| 2002 | 31.1 C (88.0 F) |
| 2003 | 28.9 C (84.0 F) |
| 2004 | 27.2 C (81.0 F) |
| 2005 | 31.1 C (88.0 F) |
| 2006 | 31.1 C (88.0 F) |
| 2007 | 29.4 C (84.9 F) |
| 2008 | 29.4 C (84.9 F) |
| 2009 | 28.3 C (82.9 F) |
| 2010 | 32.8 C (91.0 F) |
| 2011 | 30.6 C (87.1 F) |
| 2012 | 33.3 C (91.9 F) |
| 2013 | 31.1 C (88.0 F) |
| 2014 | 28.3 C (82.9 F) |
| 2015 | 30.6 C (87.1 F) |
| 2016 | 29.4 C (84.9 F) |
| 2017 | 29.4 C (84.9 F) |
| 2018 | 32.2 C (90.0 F) |
| 2019 | 30.6 C (87.1 F) |
| 2020 | 31.1 C (88.0 F) |
| 2021 | 33.3 C (91.9 F) |
| 2022 | 32.2 C (90.0 F) |
| 2023 | 28.3 C (82.9 F) |
| 2024 | 28.3 C (82.9 F) |
| 2025 | 32.8 C (91.0 F) |
| 2026 | 31.1 C (88.0 F) |
Coldest night (TNn)
| Year | Coldest night (TNn) |
|---|---|
| 1948 | -15.0 C (5.0 F) |
| 1949 | -8.9 C (16.0 F) |
| 1950 | -16.1 C (3.0 F) |
| 1951 | -11.7 C (10.9 F) |
| 1952 | -11.7 C (10.9 F) |
| 1953 | -10.0 C (14.0 F) |
| 1954 | -16.7 C (1.9 F) |
| 1955 | -16.1 C (3.0 F) |
| 1956 | -11.1 C (12.0 F) |
| 1957 | -14.4 C (6.1 F) |
| 1958 | -15.0 C (5.0 F) |
| 1959 | -13.9 C (7.0 F) |
| 1960 | -11.1 C (12.0 F) |
| 1961 | -17.8 C (0.0 F) |
| 1962 | -19.4 C (-2.9 F) |
| 1963 | -15.0 C (5.0 F) |
| 1964 | -9.4 C (15.1 F) |
| 1965 | -12.2 C (10.0 F) |
| 1966 | -12.8 C (9.0 F) |
| 1967 | -15.0 C (5.0 F) |
| 1968 | -16.7 C (1.9 F) |
| 1969 | -10.0 C (14.0 F) |
| 1970 | -18.3 C (-0.9 F) |
| 1971 | -15.6 C (3.9 F) |
| 1972 | -15.0 C (5.0 F) |
| 1973 | -15.0 C (5.0 F) |
| 1974 | -16.1 C (3.0 F) |
| 1975 | -13.3 C (8.1 F) |
| 1976 | -17.2 C (1.0 F) |
| 1977 | -15.6 C (3.9 F) |
| 1978 | -14.4 C (6.1 F) |
| 1979 | -17.8 C (0.0 F) |
| 1980 | -17.2 C (1.0 F) |
| 1981 | -17.2 C (1.0 F) |
| 1982 | -16.7 C (1.9 F) |
| 1998 | -10.6 C (12.9 F) |
| 1999 | -13.3 C (8.1 F) |
| 2000 | -15.0 C (5.0 F) |
| 2001 | -8.9 C (16.0 F) |
| 2002 | -8.9 C (16.0 F) |
| 2003 | -14.4 C (6.1 F) |
| 2004 | -19.4 C (-2.9 F) |
| 2005 | -12.2 C (10.0 F) |
| 2006 | -11.0 C (12.2 F) |
| 2007 | -13.8 C (7.2 F) |
| 2008 | -12.1 C (10.2 F) |
| 2009 | -14.3 C (6.3 F) |
| 2010 | -11.6 C (11.1 F) |
| 2011 | -13.8 C (7.2 F) |
| 2012 | -9.3 C (15.3 F) |
| 2013 | -12.1 C (10.2 F) |
| 2014 | -13.2 C (8.2 F) |
| 2015 | -16.6 C (2.1 F) |
| 2016 | -18.8 C (-1.8 F) |
| 2017 | -14.3 C (6.3 F) |
| 2018 | -16.6 C (2.1 F) |
| 2019 | -14.3 C (6.3 F) |
| 2020 | -8.2 C (17.2 F) |
| 2021 | -11.6 C (11.1 F) |
| 2022 | -11.6 C (11.1 F) |
| 2023 | -19.3 C (-2.7 F) |
| 2024 | -8.2 C (17.2 F) |
| 2025 | -8.9 C (16.0 F) |
| 2026 | -12.8 C (9.0 F) |
Wettest day (Rx1day)
| Year | Wettest day (Rx1day) |
|---|---|
| 1948 | 77.5 mm (3.1 in) |
| 1949 | 33.0 mm (1.3 in) |
| 1950 | 60.2 mm (2.4 in) |
| 1951 | 64.5 mm (2.5 in) |
| 1952 | 55.1 mm (2.2 in) |
| 1953 | 80.5 mm (3.2 in) |
| 1954 | 48.3 mm (1.9 in) |
| 1955 | 67.1 mm (2.6 in) |
| 1956 | 85.6 mm (3.4 in) |
| 1957 | 60.5 mm (2.4 in) |
| 1958 | 78.7 mm (3.1 in) |
| 1959 | 48.5 mm (1.9 in) |
| 1960 | 53.3 mm (2.1 in) |
| 1961 | 67.3 mm (2.6 in) |
| 1962 | 75.9 mm (3.0 in) |
| 1963 | 70.9 mm (2.8 in) |
| 1964 | 64.3 mm (2.5 in) |
| 1965 | 47.2 mm (1.9 in) |
| 1966 | 125.2 mm (4.9 in) |
| 1967 | 164.6 mm (6.5 in) |
| 1968 | 58.4 mm (2.3 in) |
| 1969 | 108.0 mm (4.3 in) |
| 1970 | 51.1 mm (2.0 in) |
| 1971 | 46.2 mm (1.8 in) |
| 1972 | 126.5 mm (5.0 in) |
| 1973 | 56.9 mm (2.2 in) |
| 1974 | 38.1 mm (1.5 in) |
| 1975 | 66.3 mm (2.6 in) |
| 1976 | 58.2 mm (2.3 in) |
| 1977 | 63.5 mm (2.5 in) |
| 1978 | 111.0 mm (4.4 in) |
| 1979 | 52.3 mm (2.1 in) |
| 1980 | 56.4 mm (2.2 in) |
| 1981 | 51.6 mm (2.0 in) |
| 1982 | 32.0 mm (1.3 in) |
| 1998 | 31.5 mm (1.2 in) |
| 1999 | 93.0 mm (3.7 in) |
| 2000 | 41.7 mm (1.6 in) |
| 2001 | 53.8 mm (2.1 in) |
| 2002 | 42.9 mm (1.7 in) |
| 2003 | 88.1 mm (3.5 in) |
| 2004 | 114.0 mm (4.5 in) |
| 2005 | 40.9 mm (1.6 in) |
| 2006 | 76.5 mm (3.0 in) |
| 2007 | 89.7 mm (3.5 in) |
| 2008 | 44.4 mm (1.7 in) |
| 2009 | 91.2 mm (3.6 in) |
| 2010 | 46.7 mm (1.8 in) |
| 2011 | 42.7 mm (1.7 in) |
| 2012 | 50.8 mm (2.0 in) |
| 2013 | 61.0 mm (2.4 in) |
| 2014 | 75.2 mm (3.0 in) |
| 2015 | 45.7 mm (1.8 in) |
| 2016 | 94.7 mm (3.7 in) |
| 2017 | 81.0 mm (3.2 in) |
| 2018 | 138.9 mm (5.5 in) |
| 2019 | 75.9 mm (3.0 in) |
| 2020 | 60.2 mm (2.4 in) |
| 2021 | 29.2 mm (1.1 in) |
| 2022 | 69.6 mm (2.7 in) |
| 2023 | 42.2 mm (1.7 in) |
| 2024 | 56.9 mm (2.2 in) |
| 2025 | 39.4 mm (1.6 in) |
| 2026 | 48.3 mm (1.9 in) |
Wettest five days (Rx5day)
| Year | Wettest five days (Rx5day) |
|---|---|
| 1948 | 150.7 mm (5.9 in) |
| 1949 | 69.4 mm (2.7 in) |
| 1950 | 139.7 mm (5.5 in) |
| 1951 | 82.3 mm (3.2 in) |
| 1952 | 91.4 mm (3.6 in) |
| 1953 | 124.4 mm (4.9 in) |
| 1954 | 67.1 mm (2.6 in) |
| 1955 | 88.2 mm (3.5 in) |
| 1956 | 89.4 mm (3.5 in) |
| 1957 | 76.0 mm (3.0 in) |
| 1958 | 129.6 mm (5.1 in) |
| 1959 | 100.3 mm (3.9 in) |
| 1960 | 97.8 mm (3.9 in) |
| 1961 | 78.3 mm (3.1 in) |
| 1962 | 115.3 mm (4.5 in) |
| 1963 | 101.6 mm (4.0 in) |
| 1964 | 78.0 mm (3.1 in) |
| 1965 | 64.8 mm (2.6 in) |
| 1966 | 148.1 mm (5.8 in) |
| 1967 | 184.5 mm (7.3 in) |
| 1968 | 77.6 mm (3.1 in) |
| 1969 | 136.7 mm (5.4 in) |
| 1970 | 83.8 mm (3.3 in) |
| 1971 | 67.8 mm (2.7 in) |
| 1972 | 127.5 mm (5.0 in) |
| 1973 | 79.0 mm (3.1 in) |
| 1974 | 63.8 mm (2.5 in) |
| 1975 | 78.5 mm (3.1 in) |
| 1976 | 67.9 mm (2.7 in) |
| 1977 | 96.5 mm (3.8 in) |
| 1978 | 112.8 mm (4.4 in) |
| 1979 | 93.6 mm (3.7 in) |
| 1980 | 69.1 mm (2.7 in) |
| 1981 | 75.2 mm (3.0 in) |
| 1982 | 69.5 mm (2.7 in) |
| 1998 | 53.4 mm (2.1 in) |
| 1999 | 136.2 mm (5.4 in) |
| 2000 | 82.1 mm (3.2 in) |
| 2001 | 84.1 mm (3.3 in) |
| 2002 | 96.8 mm (3.8 in) |
| 2003 | 100.6 mm (4.0 in) |
| 2004 | 216.2 mm (8.5 in) |
| 2005 | 81.2 mm (3.2 in) |
| 2006 | 116.1 mm (4.6 in) |
| 2007 | 91.2 mm (3.6 in) |
| 2008 | 103.9 mm (4.1 in) |
| 2009 | 107.1 mm (4.2 in) |
| 2010 | 89.2 mm (3.5 in) |
| 2011 | 62.8 mm (2.5 in) |
| 2012 | 81.8 mm (3.2 in) |
| 2013 | 83.7 mm (3.3 in) |
| 2014 | 108.8 mm (4.3 in) |
| 2015 | 93.4 mm (3.7 in) |
| 2016 | 98.6 mm (3.9 in) |
| 2017 | 164.6 mm (6.5 in) |
| 2018 | 176.0 mm (6.9 in) |
| 2019 | 99.4 mm (3.9 in) |
| 2020 | 65.1 mm (2.6 in) |
| 2021 | 70.9 mm (2.8 in) |
| 2022 | 91.7 mm (3.6 in) |
| 2023 | 46.3 mm (1.8 in) |
| 2024 | 141.2 mm (5.6 in) |
| 2025 | 55.9 mm (2.2 in) |
| 2026 | 74.7 mm (2.9 in) |
Longest dry spell (CDD)
| Year | Longest dry spell (CDD) |
|---|---|
| 1948 | 12 days |
| 1949 | 40 days |
| 1950 | 23 days |
| 1951 | 15 days |
| 1952 | 21 days |
| 1953 | 19 days |
| 1954 | 19 days |
| 1955 | 12 days |
| 1956 | 24 days |
| 1957 | 18 days |
| 1958 | 18 days |
| 1959 | 19 days |
| 1960 | 15 days |
| 1961 | 16 days |
| 1962 | 13 days |
| 1963 | 19 days |
| 1964 | 24 days |
| 1965 | 21 days |
| 1966 | 17 days |
| 1967 | 18 days |
| 1968 | 28 days |
| 1969 | 16 days |
| 1970 | 15 days |
| 1971 | 27 days |
| 1972 | 11 days |
| 1973 | 18 days |
| 1974 | 26 days |
| 1975 | 19 days |
| 1976 | 25 days |
| 1977 | 28 days |
| 1978 | 23 days |
| 1979 | 21 days |
| 1980 | 24 days |
| 1981 | 21 days |
| 1982 | 8 days |
| 1998 | 25 days |
| 1999 | 20 days |
| 2000 | 12 days |
| 2001 | 17 days |
| 2002 | 23 days |
| 2003 | 14 days |
| 2004 | 13 days |
| 2005 | 32 days |
| 2006 | 20 days |
| 2007 | 18 days |
| 2008 | 14 days |
| 2009 | 14 days |
| 2010 | 17 days |
| 2011 | 16 days |
| 2012 | 20 days |
| 2013 | 15 days |
| 2014 | 15 days |
| 2015 | 38 days |
| 2016 | 14 days |
| 2017 | 18 days |
| 2018 | 23 days |
| 2019 | 19 days |
| 2020 | 18 days |
| 2021 | 46 days |
| 2022 | 18 days |
| 2023 | 22 days |
| 2024 | 44 days |
| 2025 | 18 days |
| 2026 | 31 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
56 years with a frostAcross 56 years with a frost, the median last spring frost at Nantucket Mem AP falls on 16 April and the median first autumn frost on 5 November, which leaves a median of 203 days between them.
Fitted over all years, the growing season changes by +1.3 days per decade at this station.
| Measure | Median, all years | Earliest period | Recent period (1974 to 2024) | Recent against earliest | Fitted trend |
|---|---|---|---|---|---|
| Last spring frost | 16 April | n/a | 14 April | n/a | -1.0 days per decade |
| First autumn frost | 5 November | n/a | 4 November | n/a | +0.3 days per decade |
| Growing days | 203 days | n/a | 205 days | n/a | +1.3 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.
Rainfall Return Levels
58 years, 1948 to 2025A day with at least 62.0 mm (2.4 in) of rain is expected about once in 2 years. A day with at least 175.8 mm (6.9 in) of rain is expected about once in 100 years.
| Expected about once in | A day with at least | Note |
|---|---|---|
| 2 years | 62.0 mm (2.4 in) | |
| 5 years | 85.1 mm (3.4 in) | |
| 10 years | 103.0 mm (4.1 in) | |
| 25 years | 129.0 mm (5.1 in) | |
| 50 years | 151.1 mm (5.9 in) | |
| 100 years | 175.8 mm (6.9 in) | Longer than the 58 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, 58 years of values from 1948 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: 164.6 mm (6.5 in) in 1967; 138.9 mm (5.5 in) in 2018; 126.5 mm (5.0 in) in 1972.
Station Changes
No change in the annual mean temperature of this station was found against its neighbours.
Climate Twins
2007 to 2024 against 1961 to 1990Over 2007 to 2024, Nantucket Mem AP had a mean temperature of 10.8 C (51.5 F) and 977.6 mm (38.5 in) of rain a year. The 3 stations whose 1961 to 1990 climate was closest to that are Block Island State AP (United States, 128 km away), Newport Rose (United States, 111 km away) and Ishinomaki (Japan, 10,601 km away).
| Twin station | Country | Distance away | Mean temperature, 1961-1990 | Rain a year, 1961-1990 | Climate difference |
|---|---|---|---|---|---|
| Block Island State AP | United States | 128 km (80 mi) | 10.1 C (50.3 F) | 1,009.8 mm (39.8 in) | 1.04 |
| Newport Rose | United States | 111 km (69 mi) | 10.4 C (50.6 F) | 1,116.1 mm (43.9 in) | 1.26 |
| Ishinomaki | Japan | 10,601 km (6,587 mi) | 11.4 C (52.5 F) | 1,043.7 mm (41.1 in) | 1.29 |
Twins are stations, not cities. A twin is one of the three stations at least 100 km away whose earlier climate is closest to this station's recent one, so a close match does not mean the two places look alike in other ways. A station move or a gap in a record can change that station's averages. The list describes past climate; it is not a forecast and does not say what caused any change. How twins are found, and a search for any station.
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 2026-10-15 (15 October 2026). Records are computed by this site and are not official.
Data as of . Last revised (2026-10-15).