Belfast Weather Records (USC00170480)
Record envelope, standing records and threshold days for Belfast (USC00170480), Maine, United States, with 134 years of record.
Key Facts for Belfast
- Belfast (USC00170480) is a weather station in Maine, United States at 44.40 latitude and -68.99 longitude, 36 m (118 ft) above sea level.
- The station reports from 1893 to 2026, 134 years of record.
- 1,464 records set at Belfast still stand.
- Records are tracked for tmax, tmin, prcp, snow, snwd: an element needs 30 years of data to be eligible.
- Belfast set a daily record precipitation of 39.4 mm (1.6 in) on 30 April 2026.
About the Station
- Location: Maine, United States, 44.40 latitude, -68.99 longitude.
- Elevation: 36 m (118 ft).
- Period of record: 1893 to 2026, 134 years.
- Eligible elements: tmax, tmin, prcp, snow, snwd.
Daily Record Envelope and 2026
0 days at or beyond a record| Month | Highest record high | Lowest record low | 2026 highest maximum | 2026 lowest minimum |
|---|---|---|---|---|
| Jan | 15.0 C (59.0 F) | -33.3 C (-27.9 F) | n/a | n/a |
| Feb | 18.3 C (64.9 F) | -33.3 C (-27.9 F) | n/a | n/a |
| Mar | 27.8 C (82.0 F) | -27.8 C (-18.0 F) | n/a | n/a |
| Apr | 29.4 C (84.9 F) | -12.2 C (10.0 F) | n/a | n/a |
| May | 35.0 C (95.0 F) | -5.6 C (21.9 F) | n/a | n/a |
| Jun | 35.6 C (96.1 F) | 0.6 C (33.1 F) | n/a | n/a |
| Jul | 36.7 C (98.1 F) | 6.1 C (43.0 F) | n/a | n/a |
| Aug | 36.7 C (98.1 F) | 1.7 C (35.1 F) | n/a | n/a |
| Sep | 36.7 C (98.1 F) | -4.4 C (24.1 F) | n/a | n/a |
| Oct | 30.6 C (87.1 F) | -8.3 C (17.1 F) | n/a | n/a |
| Nov | 22.8 C (73.0 F) | -16.7 C (1.9 F) | n/a | n/a |
| Dec | 18.3 C (64.9 F) | -32.8 C (-27.0 F) | n/a | n/a |
Which Years Hold Standing Records
1,464 standing records| Year set | Standing records |
|---|---|
| 1901 | 24 |
| 1902 | 32 |
| 1903 | 36 |
| 1904 | 29 |
| 1945 | 19 |
| 1946 | 31 |
| 1947 | 31 |
| 1948 | 30 |
| 1949 | 25 |
| 1950 | 26 |
| 1951 | 20 |
| 1952 | 9 |
| 1953 | 27 |
| 1954 | 21 |
| 1955 | 18 |
| 1956 | 24 |
| 1957 | 24 |
| 1958 | 11 |
| 1959 | 24 |
| 1960 | 8 |
| 1961 | 16 |
| 1962 | 14 |
| 1963 | 21 |
| 1964 | 18 |
| 1965 | 18 |
| 1966 | 19 |
| 1967 | 16 |
| 1968 | 16 |
| 1969 | 12 |
| 1970 | 7 |
| 1971 | 23 |
| 1972 | 14 |
| 1973 | 24 |
| 1974 | 24 |
| 1975 | 17 |
| 1976 | 24 |
| 1977 | 24 |
| 1978 | 13 |
| 1979 | 32 |
| 1980 | 20 |
| 1981 | 20 |
| 1982 | 27 |
| 1983 | 9 |
| 1984 | 26 |
| 1985 | 9 |
| 1986 | 14 |
| 1987 | 18 |
| 1988 | 7 |
| 1989 | 18 |
| 1990 | 23 |
| 1991 | 17 |
| 1992 | 21 |
| 1993 | 15 |
| 1994 | 12 |
| 1995 | 11 |
| 1996 | 13 |
| 1997 | 6 |
| 1998 | 10 |
| 1999 | 15 |
| 2000 | 8 |
| 2001 | 18 |
| 2002 | 18 |
| 2003 | 15 |
| 2004 | 12 |
| 2005 | 11 |
| 2006 | 10 |
| 2007 | 20 |
| 2008 | 10 |
| 2009 | 17 |
| 2010 | 10 |
| 2011 | 11 |
| 2012 | 9 |
| 2013 | 13 |
| 2014 | 14 |
| 2015 | 23 |
| 2016 | 14 |
| 2017 | 20 |
| 2018 | 22 |
| 2019 | 16 |
| 2020 | 17 |
| 2021 | 13 |
| 2022 | 11 |
All-Time Record Progression
3 new records| Date | Kind | Detail |
|---|---|---|
| 1973-07-08 | Record high minimum temperature | Record high minimum temperature 22.8 C (73.0 F) |
| 2014-01-03 | Record low maximum temperature | Record low maximum temperature -20.6 C (-5.1 F) |
| 2015-10-01 | Record daily precipitation | Record daily precipitation 219.7 mm (8.6 in) |
Wettest Day of Each Month
Oct: 219.7 mm (8.6 in)| Month | Record daily precipitation (mm) | Date |
|---|---|---|
| Jan | 86.4 mm (3.4 in) | 5 January 1992 |
| Feb | 170.2 mm (6.7 in) | 21 February 1898 |
| Mar | 118.1 mm (4.6 in) | 10 March 1903 |
| Apr | 121.2 mm (4.8 in) | 28 April 2005 |
| May | 89.9 mm (3.5 in) | 17 May 1948 |
| Jun | 96.5 mm (3.8 in) | 20 June 2009 |
| Jul | 132.1 mm (5.2 in) | 13 July 1996 |
| Aug | 86.9 mm (3.4 in) | 1 August 1985 |
| Sep | 142.5 mm (5.6 in) | 6 September 1896 |
| Oct | 219.7 mm (8.6 in) | 1 October 2015 |
| Nov | 116.8 mm (4.6 in) | 3 November 1966 |
| Dec | 90.9 mm (3.6 in) | 17 December 1973 |
Period of Record Coverage
1901 to 2022| Year | Days with data | Share of year | Complete |
|---|---|---|---|
| 1901 | 271 | 74% | No |
| 1902 | 359 | 98% | Yes |
| 1903 | 361 | 99% | Yes |
| 1904 | 299 | 82% | No |
| 1945 | 301 | 82% | No |
| 1946 | 364 | 100% | Yes |
| 1947 | 365 | 100% | Yes |
| 1948 | 365 | 100% | Yes |
| 1949 | 365 | 100% | Yes |
| 1950 | 365 | 100% | Yes |
| 1951 | 364 | 100% | Yes |
| 1952 | 365 | 100% | Yes |
| 1953 | 364 | 100% | Yes |
| 1954 | 361 | 99% | Yes |
| 1955 | 362 | 99% | Yes |
| 1956 | 364 | 99% | Yes |
| 1957 | 364 | 100% | Yes |
| 1958 | 365 | 100% | Yes |
| 1959 | 364 | 100% | Yes |
| 1960 | 365 | 100% | Yes |
| 1961 | 363 | 99% | Yes |
| 1962 | 364 | 100% | Yes |
| 1963 | 365 | 100% | Yes |
| 1964 | 366 | 100% | Yes |
| 1965 | 364 | 100% | Yes |
| 1966 | 361 | 99% | Yes |
| 1967 | 359 | 98% | Yes |
| 1968 | 359 | 98% | Yes |
| 1969 | 361 | 99% | Yes |
| 1970 | 361 | 99% | Yes |
| 1971 | 363 | 99% | Yes |
| 1972 | 366 | 100% | Yes |
| 1973 | 364 | 100% | Yes |
| 1974 | 364 | 100% | Yes |
| 1975 | 364 | 100% | Yes |
| 1976 | 365 | 100% | Yes |
| 1977 | 363 | 99% | Yes |
| 1978 | 365 | 100% | Yes |
| 1979 | 365 | 100% | Yes |
| 1980 | 361 | 99% | Yes |
| 1981 | 361 | 99% | Yes |
| 1982 | 336 | 92% | Yes |
| 1983 | 343 | 94% | Yes |
| 1984 | 331 | 90% | Yes |
| 1985 | 327 | 90% | No |
| 1986 | 342 | 94% | Yes |
| 1987 | 353 | 97% | Yes |
| 1988 | 350 | 96% | Yes |
| 1989 | 354 | 97% | Yes |
| 1990 | 355 | 97% | Yes |
| 1991 | 340 | 93% | Yes |
| 1992 | 351 | 96% | Yes |
| 1993 | 354 | 97% | Yes |
| 1994 | 350 | 96% | Yes |
| 1995 | 323 | 88% | No |
| 1996 | 357 | 98% | Yes |
| 1997 | 353 | 97% | Yes |
| 1998 | 355 | 97% | Yes |
| 1999 | 358 | 98% | Yes |
| 2000 | 361 | 99% | Yes |
| 2001 | 347 | 95% | Yes |
| 2002 | 358 | 98% | Yes |
| 2003 | 351 | 96% | Yes |
| 2004 | 354 | 97% | Yes |
| 2005 | 352 | 96% | Yes |
| 2006 | 353 | 97% | Yes |
| 2007 | 355 | 97% | Yes |
| 2008 | 356 | 97% | Yes |
| 2009 | 361 | 99% | Yes |
| 2010 | 365 | 100% | Yes |
| 2011 | 365 | 100% | Yes |
| 2012 | 366 | 100% | Yes |
| 2013 | 365 | 100% | Yes |
| 2014 | 365 | 100% | Yes |
| 2015 | 365 | 100% | Yes |
| 2016 | 366 | 100% | Yes |
| 2017 | 365 | 100% | Yes |
| 2018 | 365 | 100% | Yes |
| 2019 | 365 | 100% | Yes |
| 2020 | 366 | 100% | Yes |
| 2021 | 365 | 100% | Yes |
| 2022 | 303 | 83% | No |
Latest Records
20| Date | Station | Record | Value | Beat old record by | Old record stood | Significance |
|---|---|---|---|---|---|---|
| 30 April 2026 | Belfast, US | daily rain | 39.4 mm (1.6 in) | 0.5 mm (0.02 in) | 45 years | 23 of 100 (Routine) |
| 25 March 2025 | Belfast, US | daily snowfall | 10.2 cm (4.0 in) | 5.1 cm (2.0 in) | 64 years | 36 of 100 (Notable) |
| 16 February 2025 | Belfast, US | daily snowfall | 27.9 cm (11.0 in) | 2.5 cm (1.0 in) | 61 years | 31 of 100 (Routine) |
| 27 October 2022 | Belfast, US | daily rain | 68.6 mm (2.7 in) | 23.6 mm (0.9 in) | 64 years | 42 of 100 (Notable) |
| 27 October 2022 | Belfast, US | daily high min | 13.3 C (55.9 F) | 2.7 C (4.9 F) | 44 years | 28 of 100 (Routine) |
| 15 October 2022 | Belfast, US | daily rain | 90.2 mm (3.6 in) | 40.7 mm (1.6 in) | 44 years | 46 of 100 (Notable) |
| 11 October 2022 | Belfast, US | daily low max (Tie) | 7.8 C (46.0 F) | tie | 43 years | 5 of 100 (Routine) |
| 4 October 2022 | Belfast, US | daily low min (Tie) | -1.1 C (30.0 F) | tie | 76 years | 8 of 100 (Routine) |
| 3 October 2022 | Belfast, US | daily low min | -1.1 C (30.0 F) | 0.5 C (0.9 F) | 72 years | 32 of 100 (Routine) |
| 21 September 2022 | Belfast, US | daily low max (Tie) | 13.9 C (57.0 F) | tie | 35 years | 5 of 100 (Routine) |
| 8 August 2022 | Belfast, US | daily high max (Tie) | 33.9 C (93.0 F) | tie | 20 years | 4 of 100 (Routine) |
| 7 August 2022 | Belfast, US | daily high min (Tie) | 19.4 C (66.9 F) | tie | 33 years | 5 of 100 (Routine) |
| 6 August 2022 | Belfast, US | daily high min | 20.0 C (68.0 F) | 1.7 C (3.1 F) | 33 years | 25 of 100 (Routine) |
| 13 July 2022 | Belfast, US | daily high min (Tie) | 17.8 C (64.0 F) | tie | 24 years | 4 of 100 (Routine) |
| 20 June 2022 | Belfast, US | daily low max | 11.1 C (52.0 F) | 3.3 C (5.9 F) | 12 years | 19 of 100 (Routine) |
| 28 May 2022 | Belfast, US | daily high min | 13.3 C (55.9 F) | 1.1 C (2.0 F) | 56 years | 29 of 100 (Routine) |
| 23 May 2022 | Belfast, US | daily high min (Tie) | 13.3 C (55.9 F) | tie | 120 years | 10 of 100 (Routine) |
| 15 May 2022 | Belfast, US | daily high max | 28.9 C (84.0 F) | 0.6 C (1.1 F) | 71 years | 32 of 100 (Routine) |
| 26 February 2022 | Belfast, US | daily low max | -10.0 C (14.0 F) | 1.7 C (3.1 F) | 19 years | 18 of 100 (Routine) |
| 24 February 2022 | Belfast, US | monthly high max | 18.3 C (64.9 F) | 2.7 C (4.9 F) | 41 years | 37 of 100 (Notable) |
Climate Trend
75 complete years, 1902 to 2021| Year | Annual mean temperature | Difference from the station mean |
|---|---|---|
| 1902 | 6.3 C | -1.05 C |
| 1903 | 6.2 C | -1.12 C |
| 1946 | 7.4 C | +0.08 C |
| 1947 | 7.2 C | -0.14 C |
| 1948 | 6.6 C | -0.74 C |
| 1949 | 8.2 C | +0.79 C |
| 1950 | 7.0 C | -0.35 C |
| 1951 | 7.8 C | +0.40 C |
| 1952 | 7.9 C | +0.53 C |
| 1953 | 8.6 C | +1.20 C |
| 1954 | 7.5 C | +0.18 C |
| 1955 | 7.5 C | +0.13 C |
| 1956 | 6.7 C | -0.67 C |
| 1957 | 7.8 C | +0.41 C |
| 1958 | 7.0 C | -0.41 C |
| 1959 | 7.4 C | +0.04 C |
| 1960 | 7.8 C | +0.44 C |
| 1961 | 7.4 C | +0.02 C |
| 1962 | 6.7 C | -0.68 C |
| 1963 | 7.1 C | -0.24 C |
| 1964 | 7.4 C | +0.06 C |
| 1967 | 7.3 C | -0.11 C |
| 1968 | 7.4 C | +0.02 C |
| 1969 | 8.1 C | +0.71 C |
| 1970 | 7.5 C | +0.16 C |
| 1971 | 7.6 C | +0.19 C |
| 1972 | 7.1 C | -0.26 C |
| 1973 | 8.6 C | +1.26 C |
| 1974 | 7.4 C | +0.04 C |
| 1975 | 7.9 C | +0.55 C |
| 1976 | 7.7 C | +0.36 C |
| 1977 | 7.6 C | +0.27 C |
| 1978 | 7.2 C | -0.21 C |
| 1979 | 8.3 C | +0.95 C |
| 1980 | 6.8 C | -0.56 C |
| 1981 | 7.7 C | +0.37 C |
| 1982 | 7.2 C | -0.18 C |
| 1983 | 7.9 C | +0.55 C |
| 1984 | 8.2 C | +0.85 C |
| 1985 | 7.6 C | +0.20 C |
| 1986 | 6.7 C | -0.65 C |
| 1987 | 7.1 C | -0.31 C |
| 1988 | 7.4 C | +0.03 C |
| 1989 | 6.3 C | -1.09 C |
| 1990 | 8.4 C | +1.02 C |
| 1991 | 8.1 C | +0.77 C |
| 1992 | 6.5 C | -0.90 C |
| 1993 | 6.8 C | -0.58 C |
| 1994 | 7.0 C | -0.36 C |
| 1996 | 6.9 C | -0.44 C |
| 1997 | 6.9 C | -0.45 C |
| 1998 | 8.3 C | +0.95 C |
| 1999 | 8.7 C | +1.36 C |
| 2000 | 7.2 C | -0.14 C |
| 2001 | 8.0 C | +0.61 C |
| 2002 | 7.7 C | +0.31 C |
| 2003 | 6.8 C | -0.60 C |
| 2004 | 6.9 C | -0.49 C |
| 2005 | 7.4 C | +0.05 C |
| 2006 | 8.4 C | +1.07 C |
| 2007 | 7.0 C | -0.39 C |
| 2008 | 7.5 C | +0.15 C |
| 2009 | 6.2 C | -1.20 C |
| 2010 | 8.0 C | +0.66 C |
| 2011 | 7.1 C | -0.28 C |
| 2012 | 7.7 C | +0.36 C |
| 2013 | 6.8 C | -0.60 C |
| 2014 | 6.4 C | -0.92 C |
| 2015 | 6.1 C | -1.28 C |
| 2016 | 7.6 C | +0.24 C |
| 2017 | 7.1 C | -0.30 C |
| 2018 | 6.7 C | -0.65 C |
| 2019 | 6.2 C | -1.16 C |
| 2020 | 7.5 C | +0.18 C |
| 2021 | 8.3 C | +0.95 C |
The fitted trend in annual mean temperature here over 1902 to 2021 is 0.00 C (-0.06 to 0.06) per decade. The interval includes zero, so the trend is not clearly different from zero. In Fahrenheit: 0.00 F (-0.10 to 0.11) per decade. The slope is a straight line fitted to 75 complete years; the brackets give its 95 percent interval.
| Measure | Per decade (C) | Per decade (F) | Period | Complete years | Reading |
|---|---|---|---|---|---|
| Annual mean temperature | 0.00 C (-0.06 to 0.06) per decade | 0.00 F (-0.10 to 0.11) per decade | 1902 to 2021 | 75 | Not clearly different from zero |
| Mean daily maximum | -0.05 C (-0.11 to 0.01) per decade | -0.09 F (-0.20 to 0.02) per decade | 1902 to 2021 | 75 | Not clearly different from zero |
| Mean daily minimum | 0.05 C (-0.01 to 0.12) per decade | 0.09 F (-0.02 to 0.21) per decade | 1902 to 2021 | 75 | Not clearly different from zero |
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
1893 to 2026| Measure | Record | Year of the record | Median year | Years with a value |
|---|---|---|---|---|
| Hottest day (TXx) | 36.7 C (98.1 F) | 1945 | 33.6 C (92.5 F) | 82 |
| Coldest night (TNn) | -33.3 C (-27.9 F) | 1957 | -26.7 C (-16.1 F) | 82 |
| Wettest day (Rx1day) | 219.7 mm (8.6 in) | 2015 | 68.1 mm (2.7 in) | 93 |
| Wettest five days (Rx5day) | 261.9 mm (10.3 in) | 2015 | 100.3 mm (3.9 in) | 92 |
| Longest dry spell (CDD) | 30 days | 1947 | 17 days | 92 |
Hottest day (TXx)
| Year | Hottest day (TXx) |
|---|---|
| 1893 | n/a |
| 1894 | n/a |
| 1895 | n/a |
| 1896 | n/a |
| 1897 | n/a |
| 1898 | n/a |
| 1899 | n/a |
| 1900 | n/a |
| 1901 | 35.6 C (96.1 F) |
| 1902 | 31.7 C (89.1 F) |
| 1903 | 31.1 C (88.0 F) |
| 1904 | 32.8 C (91.0 F) |
| 1945 | 36.7 C (98.1 F) |
| 1946 | 36.7 C (98.1 F) |
| 1947 | 35.6 C (96.1 F) |
| 1948 | 36.7 C (98.1 F) |
| 1949 | 36.1 C (97.0 F) |
| 1950 | 33.3 C (91.9 F) |
| 1951 | 31.7 C (89.1 F) |
| 1952 | 36.1 C (97.0 F) |
| 1953 | 34.4 C (93.9 F) |
| 1954 | 31.7 C (89.1 F) |
| 1955 | 36.7 C (98.1 F) |
| 1956 | 33.9 C (93.0 F) |
| 1957 | 35.0 C (95.0 F) |
| 1958 | 31.7 C (89.1 F) |
| 1959 | 33.9 C (93.0 F) |
| 1960 | 33.9 C (93.0 F) |
| 1961 | 32.8 C (91.0 F) |
| 1962 | 31.7 C (89.1 F) |
| 1963 | 36.1 C (97.0 F) |
| 1964 | 32.8 C (91.0 F) |
| 1965 | 32.8 C (91.0 F) |
| 1966 | 33.3 C (91.9 F) |
| 1967 | 32.8 C (91.0 F) |
| 1968 | 33.9 C (93.0 F) |
| 1969 | 34.4 C (93.9 F) |
| 1970 | 35.6 C (96.1 F) |
| 1971 | 35.0 C (95.0 F) |
| 1972 | 32.2 C (90.0 F) |
| 1973 | 35.6 C (96.1 F) |
| 1974 | 31.7 C (89.1 F) |
| 1975 | 35.6 C (96.1 F) |
| 1976 | 35.6 C (96.1 F) |
| 1977 | 35.6 C (96.1 F) |
| 1978 | 34.4 C (93.9 F) |
| 1979 | 34.4 C (93.9 F) |
| 1980 | 33.3 C (91.9 F) |
| 1981 | 34.4 C (93.9 F) |
| 1982 | 32.8 C (91.0 F) |
| 1983 | 34.4 C (93.9 F) |
| 1984 | 35.6 C (96.1 F) |
| 1985 | 32.2 C (90.0 F) |
| 1986 | 31.1 C (88.0 F) |
| 1987 | 32.8 C (91.0 F) |
| 1988 | 33.9 C (93.0 F) |
| 1989 | 34.4 C (93.9 F) |
| 1990 | 31.7 C (89.1 F) |
| 1991 | 35.6 C (96.1 F) |
| 1992 | 35.0 C (95.0 F) |
| 1993 | 34.4 C (93.9 F) |
| 1994 | 32.2 C (90.0 F) |
| 1995 | 35.0 C (95.0 F) |
| 1996 | 30.0 C (86.0 F) |
| 1997 | 32.2 C (90.0 F) |
| 1998 | 32.2 C (90.0 F) |
| 1999 | 35.0 C (95.0 F) |
| 2000 | 31.7 C (89.1 F) |
| 2001 | 33.9 C (93.0 F) |
| 2002 | 33.9 C (93.0 F) |
| 2003 | 31.1 C (88.0 F) |
| 2004 | 32.8 C (91.0 F) |
| 2005 | 33.9 C (93.0 F) |
| 2006 | 32.8 C (91.0 F) |
| 2007 | 32.8 C (91.0 F) |
| 2008 | 31.1 C (88.0 F) |
| 2009 | 32.2 C (90.0 F) |
| 2010 | 33.9 C (93.0 F) |
| 2011 | 34.4 C (93.9 F) |
| 2012 | 32.8 C (91.0 F) |
| 2013 | 32.8 C (91.0 F) |
| 2014 | 30.6 C (87.1 F) |
| 2015 | 31.7 C (89.1 F) |
| 2016 | 32.8 C (91.0 F) |
| 2017 | 33.3 C (91.9 F) |
| 2018 | 33.3 C (91.9 F) |
| 2019 | 33.3 C (91.9 F) |
| 2020 | 32.8 C (91.0 F) |
| 2021 | 33.9 C (93.0 F) |
| 2022 | 33.9 C (93.0 F) |
| 2024 | n/a |
| 2025 | n/a |
| 2026 | n/a |
Coldest night (TNn)
| Year | Coldest night (TNn) |
|---|---|
| 1893 | n/a |
| 1894 | n/a |
| 1895 | n/a |
| 1896 | n/a |
| 1897 | n/a |
| 1898 | n/a |
| 1899 | n/a |
| 1900 | n/a |
| 1901 | -18.9 C (-2.0 F) |
| 1902 | -27.2 C (-17.0 F) |
| 1903 | -26.1 C (-15.0 F) |
| 1904 | -26.7 C (-16.1 F) |
| 1945 | -22.2 C (-8.0 F) |
| 1946 | -27.8 C (-18.0 F) |
| 1947 | -30.0 C (-22.0 F) |
| 1948 | -32.8 C (-27.0 F) |
| 1949 | -23.9 C (-11.0 F) |
| 1950 | -28.9 C (-20.0 F) |
| 1951 | -27.2 C (-17.0 F) |
| 1952 | -24.4 C (-11.9 F) |
| 1953 | -18.3 C (-0.9 F) |
| 1954 | -23.3 C (-9.9 F) |
| 1955 | -31.1 C (-24.0 F) |
| 1956 | -25.0 C (-13.0 F) |
| 1957 | -33.3 C (-27.9 F) |
| 1958 | -27.8 C (-18.0 F) |
| 1959 | -26.7 C (-16.1 F) |
| 1960 | -25.0 C (-13.0 F) |
| 1961 | -30.6 C (-23.1 F) |
| 1962 | -33.3 C (-27.9 F) |
| 1963 | -30.6 C (-23.1 F) |
| 1964 | -25.0 C (-13.0 F) |
| 1965 | -26.1 C (-15.0 F) |
| 1966 | -28.3 C (-18.9 F) |
| 1967 | -27.8 C (-18.0 F) |
| 1968 | -25.6 C (-14.1 F) |
| 1969 | -27.2 C (-17.0 F) |
| 1970 | -28.3 C (-18.9 F) |
| 1971 | -32.2 C (-26.0 F) |
| 1972 | -30.6 C (-23.1 F) |
| 1973 | -26.7 C (-16.1 F) |
| 1974 | -28.3 C (-18.9 F) |
| 1975 | -28.9 C (-20.0 F) |
| 1976 | -26.1 C (-15.0 F) |
| 1977 | -30.6 C (-23.1 F) |
| 1978 | -26.1 C (-15.0 F) |
| 1979 | -24.4 C (-11.9 F) |
| 1980 | -32.8 C (-27.0 F) |
| 1981 | -32.8 C (-27.0 F) |
| 1982 | -32.8 C (-27.0 F) |
| 1983 | -22.8 C (-9.0 F) |
| 1984 | -32.2 C (-26.0 F) |
| 1985 | -24.4 C (-11.9 F) |
| 1986 | -22.8 C (-9.0 F) |
| 1987 | -25.0 C (-13.0 F) |
| 1988 | -28.9 C (-20.0 F) |
| 1989 | -28.3 C (-18.9 F) |
| 1990 | -25.0 C (-13.0 F) |
| 1991 | -23.3 C (-9.9 F) |
| 1992 | -27.8 C (-18.0 F) |
| 1993 | -31.7 C (-25.1 F) |
| 1994 | -29.4 C (-20.9 F) |
| 1995 | -27.8 C (-18.0 F) |
| 1996 | -27.2 C (-17.0 F) |
| 1997 | -22.2 C (-8.0 F) |
| 1998 | -27.2 C (-17.0 F) |
| 1999 | -25.0 C (-13.0 F) |
| 2000 | -26.1 C (-15.0 F) |
| 2001 | -23.3 C (-9.9 F) |
| 2002 | -21.1 C (-6.0 F) |
| 2003 | -29.4 C (-20.9 F) |
| 2004 | -26.7 C (-16.1 F) |
| 2005 | -28.3 C (-18.9 F) |
| 2006 | -21.1 C (-6.0 F) |
| 2007 | -22.8 C (-9.0 F) |
| 2008 | -25.0 C (-13.0 F) |
| 2009 | -30.6 C (-23.1 F) |
| 2010 | -20.6 C (-5.1 F) |
| 2011 | -24.4 C (-11.9 F) |
| 2012 | -22.2 C (-8.0 F) |
| 2013 | -25.6 C (-14.1 F) |
| 2014 | -27.8 C (-18.0 F) |
| 2015 | -29.4 C (-20.9 F) |
| 2016 | -27.2 C (-17.0 F) |
| 2017 | -27.2 C (-17.0 F) |
| 2018 | -23.9 C (-11.0 F) |
| 2019 | -21.1 C (-6.0 F) |
| 2020 | -22.8 C (-9.0 F) |
| 2021 | -20.6 C (-5.1 F) |
| 2022 | -23.9 C (-11.0 F) |
| 2024 | n/a |
| 2025 | n/a |
| 2026 | n/a |
Wettest day (Rx1day)
| Year | Wettest day (Rx1day) |
|---|---|
| 1893 | 54.6 mm (2.1 in) |
| 1894 | 77.0 mm (3.0 in) |
| 1895 | 65.8 mm (2.6 in) |
| 1896 | 142.5 mm (5.6 in) |
| 1897 | 50.8 mm (2.0 in) |
| 1898 | 170.2 mm (6.7 in) |
| 1899 | 50.5 mm (2.0 in) |
| 1900 | 101.6 mm (4.0 in) |
| 1901 | 79.8 mm (3.1 in) |
| 1902 | 68.1 mm (2.7 in) |
| 1903 | 118.1 mm (4.6 in) |
| 1904 | 63.8 mm (2.5 in) |
| 1945 | 55.6 mm (2.2 in) |
| 1946 | 62.7 mm (2.5 in) |
| 1947 | 51.8 mm (2.0 in) |
| 1948 | 89.9 mm (3.5 in) |
| 1949 | 39.1 mm (1.5 in) |
| 1950 | 78.7 mm (3.1 in) |
| 1951 | 95.0 mm (3.7 in) |
| 1952 | 52.3 mm (2.1 in) |
| 1953 | 68.1 mm (2.7 in) |
| 1954 | 47.8 mm (1.9 in) |
| 1955 | 93.5 mm (3.7 in) |
| 1956 | 39.6 mm (1.6 in) |
| 1957 | 46.7 mm (1.8 in) |
| 1958 | 76.2 mm (3.0 in) |
| 1959 | 106.7 mm (4.2 in) |
| 1960 | 77.5 mm (3.1 in) |
| 1961 | 78.2 mm (3.1 in) |
| 1962 | 58.4 mm (2.3 in) |
| 1963 | 61.0 mm (2.4 in) |
| 1964 | 47.8 mm (1.9 in) |
| 1965 | 40.6 mm (1.6 in) |
| 1966 | 116.8 mm (4.6 in) |
| 1967 | 63.5 mm (2.5 in) |
| 1968 | 58.2 mm (2.3 in) |
| 1969 | 82.6 mm (3.3 in) |
| 1970 | 56.6 mm (2.2 in) |
| 1971 | 40.6 mm (1.6 in) |
| 1972 | 82.6 mm (3.3 in) |
| 1973 | 90.9 mm (3.6 in) |
| 1974 | 65.5 mm (2.6 in) |
| 1975 | 76.2 mm (3.0 in) |
| 1976 | 73.7 mm (2.9 in) |
| 1977 | 83.3 mm (3.3 in) |
| 1978 | 49.5 mm (1.9 in) |
| 1979 | 65.5 mm (2.6 in) |
| 1980 | 53.3 mm (2.1 in) |
| 1981 | 58.4 mm (2.3 in) |
| 1982 | 59.7 mm (2.4 in) |
| 1983 | 104.1 mm (4.1 in) |
| 1984 | 78.7 mm (3.1 in) |
| 1985 | 86.9 mm (3.4 in) |
| 1986 | 71.1 mm (2.8 in) |
| 1987 | 102.6 mm (4.0 in) |
| 1988 | 73.7 mm (2.9 in) |
| 1989 | 69.6 mm (2.7 in) |
| 1990 | 64.3 mm (2.5 in) |
| 1991 | 73.7 mm (2.9 in) |
| 1992 | 86.4 mm (3.4 in) |
| 1993 | 55.9 mm (2.2 in) |
| 1994 | 97.0 mm (3.8 in) |
| 1995 | 57.2 mm (2.3 in) |
| 1996 | 132.1 mm (5.2 in) |
| 1997 | 47.0 mm (1.9 in) |
| 1998 | 53.3 mm (2.1 in) |
| 1999 | 103.4 mm (4.1 in) |
| 2000 | 43.9 mm (1.7 in) |
| 2001 | 32.3 mm (1.3 in) |
| 2002 | 62.7 mm (2.5 in) |
| 2003 | 45.7 mm (1.8 in) |
| 2004 | 59.7 mm (2.4 in) |
| 2005 | 127.8 mm (5.0 in) |
| 2006 | 53.3 mm (2.1 in) |
| 2007 | 104.1 mm (4.1 in) |
| 2008 | 116.8 mm (4.6 in) |
| 2009 | 96.5 mm (3.8 in) |
| 2010 | 87.6 mm (3.4 in) |
| 2011 | 50.8 mm (2.0 in) |
| 2012 | 73.4 mm (2.9 in) |
| 2013 | 79.5 mm (3.1 in) |
| 2014 | 68.6 mm (2.7 in) |
| 2015 | 219.7 mm (8.6 in) |
| 2016 | 51.8 mm (2.0 in) |
| 2017 | 58.4 mm (2.3 in) |
| 2018 | 58.2 mm (2.3 in) |
| 2019 | 57.2 mm (2.3 in) |
| 2020 | 71.1 mm (2.8 in) |
| 2021 | 130.8 mm (5.1 in) |
| 2022 | 90.2 mm (3.6 in) |
| 2024 | 34.8 mm (1.4 in) |
| 2025 | 29.2 mm (1.1 in) |
| 2026 | 39.4 mm (1.6 in) |
Wettest five days (Rx5day)
| Year | Wettest five days (Rx5day) |
|---|---|
| 1893 | 99.3 mm (3.9 in) |
| 1894 | 86.9 mm (3.4 in) |
| 1895 | 94.0 mm (3.7 in) |
| 1896 | 204.2 mm (8.0 in) |
| 1897 | 58.2 mm (2.3 in) |
| 1898 | 170.2 mm (6.7 in) |
| 1899 | 65.0 mm (2.6 in) |
| 1900 | 126.5 mm (5.0 in) |
| 1901 | 85.1 mm (3.4 in) |
| 1902 | 109.2 mm (4.3 in) |
| 1903 | 147.8 mm (5.8 in) |
| 1904 | 82.6 mm (3.3 in) |
| 1945 | 91.2 mm (3.6 in) |
| 1946 | 84.5 mm (3.3 in) |
| 1947 | 86.7 mm (3.4 in) |
| 1948 | 148.1 mm (5.8 in) |
| 1949 | 86.7 mm (3.4 in) |
| 1950 | 118.9 mm (4.7 in) |
| 1951 | 132.1 mm (5.2 in) |
| 1952 | 78.3 mm (3.1 in) |
| 1953 | 115.9 mm (4.6 in) |
| 1954 | 108.0 mm (4.3 in) |
| 1955 | 125.2 mm (4.9 in) |
| 1956 | 74.2 mm (2.9 in) |
| 1957 | 60.4 mm (2.4 in) |
| 1958 | 107.7 mm (4.2 in) |
| 1959 | 125.0 mm (4.9 in) |
| 1960 | 120.7 mm (4.8 in) |
| 1961 | 126.5 mm (5.0 in) |
| 1962 | 107.5 mm (4.2 in) |
| 1963 | 122.7 mm (4.8 in) |
| 1964 | 68.2 mm (2.7 in) |
| 1965 | 58.4 mm (2.3 in) |
| 1966 | 138.2 mm (5.4 in) |
| 1967 | 101.0 mm (4.0 in) |
| 1968 | 75.0 mm (3.0 in) |
| 1969 | 116.4 mm (4.6 in) |
| 1970 | 87.8 mm (3.5 in) |
| 1971 | 61.4 mm (2.4 in) |
| 1972 | 99.7 mm (3.9 in) |
| 1973 | 130.2 mm (5.1 in) |
| 1974 | 80.8 mm (3.2 in) |
| 1975 | 100.3 mm (3.9 in) |
| 1976 | 86.7 mm (3.4 in) |
| 1977 | 100.3 mm (3.9 in) |
| 1978 | 58.0 mm (2.3 in) |
| 1979 | 109.2 mm (4.3 in) |
| 1980 | 88.9 mm (3.5 in) |
| 1981 | 111.2 mm (4.4 in) |
| 1982 | 94.0 mm (3.7 in) |
| 1983 | 151.8 mm (6.0 in) |
| 1984 | 139.7 mm (5.5 in) |
| 1985 | 107.9 mm (4.2 in) |
| 1986 | 96.5 mm (3.8 in) |
| 1987 | 104.2 mm (4.1 in) |
| 1988 | 83.6 mm (3.3 in) |
| 1989 | 109.2 mm (4.3 in) |
| 1990 | 88.2 mm (3.5 in) |
| 1991 | 114.3 mm (4.5 in) |
| 1992 | 86.4 mm (3.4 in) |
| 1993 | 83.5 mm (3.3 in) |
| 1994 | 194.5 mm (7.7 in) |
| 1995 | 94.0 mm (3.7 in) |
| 1996 | 132.1 mm (5.2 in) |
| 1997 | 70.7 mm (2.8 in) |
| 1998 | 98.7 mm (3.9 in) |
| 1999 | 132.9 mm (5.2 in) |
| 2000 | 102.3 mm (4.0 in) |
| 2001 | 53.4 mm (2.1 in) |
| 2002 | 78.8 mm (3.1 in) |
| 2003 | 78.7 mm (3.1 in) |
| 2004 | 110.8 mm (4.4 in) |
| 2005 | 242.1 mm (9.5 in) |
| 2006 | 111.7 mm (4.4 in) |
| 2007 | 113.0 mm (4.4 in) |
| 2008 | 131.5 mm (5.2 in) |
| 2009 | 116.3 mm (4.6 in) |
| 2010 | 121.1 mm (4.8 in) |
| 2011 | 80.8 mm (3.2 in) |
| 2012 | 116.9 mm (4.6 in) |
| 2013 | 98.6 mm (3.9 in) |
| 2014 | 96.5 mm (3.8 in) |
| 2015 | 261.9 mm (10.3 in) |
| 2016 | 65.3 mm (2.6 in) |
| 2017 | 96.1 mm (3.8 in) |
| 2018 | 76.5 mm (3.0 in) |
| 2019 | 73.9 mm (2.9 in) |
| 2020 | 106.1 mm (4.2 in) |
| 2021 | 158.7 mm (6.2 in) |
| 2022 | 130.9 mm (5.2 in) |
| 2024 | 52.0 mm (2.0 in) |
| 2025 | 44.2 mm (1.7 in) |
| 2026 | n/a |
Longest dry spell (CDD)
| Year | Longest dry spell (CDD) |
|---|---|
| 1893 | 17 days |
| 1894 | 16 days |
| 1895 | 14 days |
| 1896 | 12 days |
| 1897 | 14 days |
| 1898 | 18 days |
| 1899 | 18 days |
| 1900 | 14 days |
| 1901 | 17 days |
| 1902 | 14 days |
| 1903 | 20 days |
| 1904 | 15 days |
| 1945 | 16 days |
| 1946 | 15 days |
| 1947 | 30 days |
| 1948 | 16 days |
| 1949 | 19 days |
| 1950 | 19 days |
| 1951 | 16 days |
| 1952 | 22 days |
| 1953 | 16 days |
| 1954 | 14 days |
| 1955 | 20 days |
| 1956 | 15 days |
| 1957 | 16 days |
| 1958 | 14 days |
| 1959 | 11 days |
| 1960 | 13 days |
| 1961 | 23 days |
| 1962 | 17 days |
| 1963 | 17 days |
| 1964 | 14 days |
| 1965 | 28 days |
| 1966 | 18 days |
| 1967 | 14 days |
| 1968 | 26 days |
| 1969 | 18 days |
| 1970 | 21 days |
| 1971 | 17 days |
| 1972 | 14 days |
| 1973 | 15 days |
| 1974 | 19 days |
| 1975 | 18 days |
| 1976 | 22 days |
| 1977 | 18 days |
| 1978 | 21 days |
| 1979 | 23 days |
| 1980 | 24 days |
| 1981 | 25 days |
| 1982 | 17 days |
| 1983 | 25 days |
| 1984 | 16 days |
| 1985 | 24 days |
| 1986 | 14 days |
| 1987 | 19 days |
| 1988 | 16 days |
| 1989 | 16 days |
| 1990 | 18 days |
| 1991 | 20 days |
| 1992 | 28 days |
| 1993 | 16 days |
| 1994 | 21 days |
| 1995 | 14 days |
| 1996 | 12 days |
| 1997 | 19 days |
| 1998 | 17 days |
| 1999 | 25 days |
| 2000 | 12 days |
| 2001 | 21 days |
| 2002 | 19 days |
| 2003 | 22 days |
| 2004 | 14 days |
| 2005 | 15 days |
| 2006 | 17 days |
| 2007 | 15 days |
| 2008 | 18 days |
| 2009 | 16 days |
| 2010 | 20 days |
| 2011 | 10 days |
| 2012 | 17 days |
| 2013 | 13 days |
| 2014 | 16 days |
| 2015 | 15 days |
| 2016 | 18 days |
| 2017 | 16 days |
| 2018 | 13 days |
| 2019 | 15 days |
| 2020 | 21 days |
| 2021 | 16 days |
| 2022 | 10 days |
| 2024 | 17 days |
| 2025 | 9 days |
| 2026 | n/a |
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
75 years with a frostAcross 75 years with a frost, the median last spring frost at Belfast falls on 9 May and the median first autumn frost on 7 October, which leaves a median of 151 days between them.
In 1991 to 2021 the median growing season was 152 days. That is 9 days more than in 1902 to 1975.
Fitted over all years, the growing season changes by +2.0 days per decade at this station.
| Measure | Median, all years | Earliest period (1902 to 1975) | Recent period (1991 to 2021) | Recent against earliest | Fitted trend |
|---|---|---|---|---|---|
| Last spring frost | 9 May | 9 May | 9 May | no change | -0.6 days per decade |
| First autumn frost | 7 October | 3 October | 7 October | 4 days later | +1.5 days per decade |
| Growing days | 151 days | 143 days | 152 days | 9 days more | +2.0 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.
Rainfall Return Levels
86 years, 1893 to 2021A day with at least 68.0 mm (2.7 in) of rain is expected about once in 2 years. A day with at least 188.1 mm (7.4 in) of rain is expected about once in 100 years.
| Expected about once in | A day with at least | Note |
|---|---|---|
| 2 years | 68.0 mm (2.7 in) | |
| 5 years | 92.8 mm (3.7 in) | |
| 10 years | 111.8 mm (4.4 in) | |
| 25 years | 139.3 mm (5.5 in) | |
| 50 years | 162.5 mm (6.4 in) | |
| 100 years | 188.1 mm (7.4 in) | Longer than the 86 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, 86 years of values from 1893 to 2021.
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: 219.7 mm (8.6 in) in 2015; 170.2 mm (6.7 in) in 1898; 142.5 mm (5.6 in) in 1896.
Station Changes
1 suspectedOne change was suspected in the annual mean temperature of Belfast, at 1954. Each is measured against neighbouring stations.
- Relative to 5 neighbouring stations, the station's annual mean temperature from 1954 ran 0.6 C (1.0 F) higher than in the years before (likely change).
| Year | Shift (C) | Shift (F) | Strength | Neighbours |
|---|---|---|---|---|
| 1954 | +0.6 | +1.0 | likely | 5 |
Possible change at the station (a move, a new instrument or a new site); the record is kept as measured. A "likely" change has a larger test statistic than a "possible" one. Neither says why the station differs from its neighbours. How changes are found, and the largest ones.
Climate Twins
2007 to 2021 against 1961 to 1990Over 2007 to 2021, Belfast had a mean temperature of 7.1 C (44.7 F) and 1,316.5 mm (51.8 in) of rain a year. The 3 stations whose 1961 to 1990 climate was closest to that are Little Valley (United States, 829 km away), Cummington Hill (United States, 384 km away) and Norfolk 2 SW (United States, 436 km away).
| Twin station | Country | Distance away | Mean temperature, 1961-1990 | Rain a year, 1961-1990 | Climate difference |
|---|---|---|---|---|---|
| Little Valley | United States | 829 km (515 mi) | 7.0 C (44.5 F) | 1,241.9 mm (48.9 in) | 0.59 |
| Cummington Hill | United States | 384 km (239 mi) | 6.9 C (44.4 F) | 1,199.8 mm (47.2 in) | 0.77 |
| Norfolk 2 SW | United States | 436 km (271 mi) | 6.7 C (44.1 F) | 1,310.9 mm (51.6 in) | 0.78 |
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 2026-10-13 (13 October 2026). Records are computed by this site and are not official.
Data as of . Last revised (2026-10-12).