Hellinikon Weather Records (GR000016716)
Record envelope, standing records and threshold days for Hellinikon (GR000016716), Greece, with 71 years of record.
Key Facts for Hellinikon
- Hellinikon (GR000016716) is a weather station in Greece at 37.90 latitude and 23.75 longitude, 10 m (33 ft) above sea level.
- The station reports from 1955 to 2025, 71 years of record.
- 1,464 records set at Hellinikon still stand.
- Records are tracked for tmax, tmin, prcp: an element needs 30 years of data to be eligible.
- Hellinikon set a daily record high minimum temperature of 29.6 C (85.3 F) on 12 August 2025.
About the Station
- Location: Greece, 37.90 latitude, 23.75 longitude.
- Elevation: 10 m (33 ft).
- Period of record: 1955 to 2025, 71 years.
- Eligible elements: tmax, tmin, prcp.
Daily Record Envelope and 2026
20 days at or beyond a record| Month | Highest record high | Lowest record low | 2026 highest maximum | 2026 lowest minimum |
|---|---|---|---|---|
| Jan | 22.4 C (72.3 F) | -2.9 C (26.8 F) | 20.8 C (69.4 F) | 6.0 C (42.8 F) |
| Feb | 24.2 C (75.6 F) | -4.2 C (24.4 F) | 19.6 C (67.3 F) | 1.6 C (34.9 F) |
| Mar | 27.0 C (80.6 F) | -1.8 C (28.8 F) | 25.5 C (77.9 F) | 0.0 C (32.0 F) |
| Apr | 30.9 C (87.6 F) | 0.6 C (33.1 F) | 26.9 C (80.4 F) | 8.4 C (47.1 F) |
| May | 35.6 C (96.1 F) | 8.0 C (46.4 F) | 31.5 C (88.7 F) | 14.8 C (58.6 F) |
| Jun | 39.8 C (103.6 F) | 11.5 C (52.7 F) | 39.8 C (103.6 F) | 17.9 C (64.2 F) |
| Jul | 42.0 C (107.6 F) | 15.5 C (59.9 F) | 41.6 C (106.9 F) | 22.8 C (73.0 F) |
| Aug | 43.0 C (109.4 F) | 16.0 C (60.8 F) | 37.3 C (99.1 F) | 23.0 C (73.4 F) |
| Sep | 37.6 C (99.7 F) | 10.4 C (50.7 F) | n/a | n/a |
| Oct | 33.8 C (92.8 F) | 5.4 C (41.7 F) | n/a | n/a |
| Nov | 28.6 C (83.5 F) | 1.4 C (34.5 F) | n/a | n/a |
| Dec | 22.8 C (73.0 F) | -1.8 C (28.8 F) | n/a | n/a |
Which Years Hold Standing Records
1,464 standing records| Year set | Standing records |
|---|---|
| 1955 | 27 |
| 1956 | 32 |
| 1957 | 40 |
| 1958 | 16 |
| 1959 | 13 |
| 1960 | 24 |
| 1961 | 18 |
| 1962 | 17 |
| 1963 | 24 |
| 1964 | 13 |
| 1965 | 18 |
| 1966 | 28 |
| 1967 | 15 |
| 1968 | 25 |
| 1969 | 20 |
| 1970 | 15 |
| 1971 | 19 |
| 1972 | 16 |
| 1973 | 9 |
| 1974 | 7 |
| 1975 | 11 |
| 1976 | 21 |
| 1977 | 20 |
| 1978 | 15 |
| 1979 | 22 |
| 1980 | 11 |
| 1981 | 28 |
| 1982 | 23 |
| 1983 | 23 |
| 1984 | 39 |
| 1985 | 14 |
| 1986 | 13 |
| 1987 | 53 |
| 1988 | 22 |
| 1989 | 20 |
| 1990 | 21 |
| 1991 | 31 |
| 1992 | 21 |
| 1993 | 19 |
| 1994 | 10 |
| 1995 | 18 |
| 1996 | 10 |
| 1997 | 18 |
| 1998 | 23 |
| 1999 | 9 |
| 2000 | 16 |
| 2001 | 25 |
| 2002 | 10 |
| 2003 | 25 |
| 2004 | 17 |
| 2005 | 12 |
| 2006 | 29 |
| 2007 | 21 |
| 2008 | 19 |
| 2009 | 11 |
| 2010 | 24 |
| 2011 | 29 |
| 2012 | 23 |
| 2013 | 1 |
| 2014 | 2 |
| 2015 | 9 |
| 2016 | 23 |
| 2017 | 18 |
| 2018 | 17 |
| 2019 | 6 |
| 2020 | 19 |
| 2021 | 36 |
| 2022 | 25 |
| 2023 | 36 |
| 2024 | 72 |
| 2025 | 28 |
All-Time Record Progression
9 new records| Date | Kind | Detail |
|---|---|---|
| 1985-01-17 | Record daily precipitation | Record daily precipitation 81.6 mm (3.2 in) |
| 1987-04-01 | Record daily precipitation | Record daily precipitation 92.3 mm (3.6 in) |
| 1988-07-07 | Record high maximum temperature | Record high maximum temperature 42.0 C (107.6 F) |
| 1998-03-26 | Record daily precipitation | Record daily precipitation 142.0 mm (5.6 in) |
| 2004-02-13 | Record low minimum temperature | Record low minimum temperature -3.8 C (25.2 F) |
| 2008-02-18 | Record low minimum temperature | Record low minimum temperature -4.2 C (24.4 F) |
| 2021-08-03 | Record high maximum temperature | Record high maximum temperature 43.0 C (109.4 F) |
| 2024-07-18 | Record high minimum temperature | Record high minimum temperature 31.0 C (87.8 F) |
| 2025-07-26 | Record high minimum temperature | Record high minimum temperature 31.7 C (89.1 F) |
Wettest Day of Each Month
Mar: 142.0 mm (5.6 in)| Month | Record daily precipitation (mm) | Date |
|---|---|---|
| Jan | 81.6 mm (3.2 in) | 17 January 1985 |
| Feb | 83.3 mm (3.3 in) | 4 February 2011 |
| Mar | 142.0 mm (5.6 in) | 26 March 1998 |
| Apr | 92.3 mm (3.6 in) | 1 April 1987 |
| May | 40.0 mm (1.6 in) | 7 May 1994 |
| Jun | 22.6 mm (0.9 in) | 19 June 2019 |
| Jul | 45.9 mm (1.8 in) | 3 July 1983 |
| Aug | 70.2 mm (2.8 in) | 25 August 1972 |
| Sep | 83.1 mm (3.3 in) | 7 September 2023 |
| Oct | 80.9 mm (3.2 in) | 28 October 1978 |
| Nov | 96.8 mm (3.8 in) | 5 November 2001 |
| Dec | 80.2 mm (3.2 in) | 7 December 1991 |
Period of Record Coverage
1955 to 2025| Year | Days with data | Share of year | Complete |
|---|---|---|---|
| 1955 | 365 | 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 | 365 | 100% | Yes |
| 1971 | 365 | 100% | Yes |
| 1972 | 366 | 100% | Yes |
| 1973 | 365 | 100% | Yes |
| 1974 | 365 | 100% | Yes |
| 1975 | 365 | 100% | Yes |
| 1976 | 366 | 100% | Yes |
| 1977 | 365 | 100% | Yes |
| 1978 | 364 | 100% | Yes |
| 1979 | 364 | 100% | Yes |
| 1980 | 366 | 100% | Yes |
| 1981 | 365 | 100% | Yes |
| 1982 | 365 | 100% | Yes |
| 1983 | 365 | 100% | Yes |
| 1984 | 366 | 100% | Yes |
| 1985 | 365 | 100% | Yes |
| 1986 | 365 | 100% | Yes |
| 1987 | 365 | 100% | Yes |
| 1988 | 366 | 100% | Yes |
| 1989 | 365 | 100% | Yes |
| 1990 | 365 | 100% | Yes |
| 1991 | 365 | 100% | Yes |
| 1992 | 366 | 100% | Yes |
| 1993 | 365 | 100% | Yes |
| 1994 | 365 | 100% | Yes |
| 1995 | 365 | 100% | Yes |
| 1996 | 366 | 100% | Yes |
| 1997 | 365 | 100% | Yes |
| 1998 | 365 | 100% | Yes |
| 1999 | 365 | 100% | Yes |
| 2000 | 366 | 100% | Yes |
| 2001 | 276 | 76% | No |
| 2002 | 257 | 70% | No |
| 2003 | 300 | 82% | No |
| 2004 | 343 | 94% | Yes |
| 2005 | 345 | 95% | Yes |
| 2006 | 347 | 95% | Yes |
| 2007 | 354 | 97% | Yes |
| 2008 | 353 | 96% | Yes |
| 2009 | 342 | 94% | Yes |
| 2010 | 353 | 97% | Yes |
| 2011 | 354 | 97% | Yes |
| 2012 | 159 | 43% | No |
| 2013 | 4 | 1% | No |
| 2014 | 35 | 10% | No |
| 2015 | 260 | 71% | No |
| 2016 | 114 | 31% | No |
| 2017 | 109 | 30% | No |
| 2018 | 297 | 81% | No |
| 2019 | 294 | 81% | No |
| 2020 | 325 | 89% | No |
| 2021 | 326 | 89% | No |
| 2022 | 240 | 66% | No |
| 2023 | 179 | 49% | No |
| 2024 | 328 | 90% | No |
| 2025 | 223 | 61% | No |
Latest Records
20| Date | Station | Record | Value | Beat old record by | Old record stood | Significance |
|---|---|---|---|---|---|---|
| 12 August 2025 | Hellinikon, GR | daily high min | 29.6 C (85.3 F) | 1.8 C (3.2 F) | 64 years | 34 of 100 (Routine) |
| 26 July 2025 | Hellinikon, GR | all-time high min | 31.7 C (89.1 F) | 0.7 C (1.3 F) | 1 year | 30 of 100 (Routine) |
| 26 July 2025 | Hellinikon, GR | daily high max | 39.4 C (102.9 F) | 1.4 C (2.5 F) | 18 years | 17 of 100 (Routine) |
| 25 July 2025 | Hellinikon, GR | daily high max | 41.6 C (106.9 F) | 2.4 C (4.3 F) | 24 years | 23 of 100 (Routine) |
| 25 July 2025 | Hellinikon, GR | daily high min (Tie) | 28.4 C (83.1 F) | tie | 38 years | 4 of 100 (Routine) |
| 24 July 2025 | Hellinikon, GR | daily high max | 39.4 C (102.9 F) | 0.4 C (0.7 F) | 38 years | 19 of 100 (Routine) |
| 16 July 2025 | Hellinikon, GR | daily high min | 29.0 C (84.2 F) | 0.4 C (0.7 F) | 15 years | 12 of 100 (Routine) |
| 2 July 2025 | Hellinikon, GR | daily high min | 28.3 C (82.9 F) | 0.3 C (0.5 F) | 8 years | 10 of 100 (Routine) |
| 28 June 2025 | Hellinikon, GR | daily high min | 28.0 C (82.4 F) | 0.8 C (1.4 F) | 18 years | 15 of 100 (Routine) |
| 27 June 2025 | Hellinikon, GR | monthly high max | 39.8 C (103.6 F) | 0.2 C (0.4 F) | 18 years | 22 of 100 (Routine) |
| 27 June 2025 | Hellinikon, GR | monthly high min | 29.7 C (85.5 F) | 0.1 C (0.2 F) | 1 year | 17 of 100 (Routine) |
| 25 June 2025 | Hellinikon, GR | daily high max | 38.1 C (100.6 F) | 0.5 C (0.9 F) | 16 years | 13 of 100 (Routine) |
| 20 June 2025 | Hellinikon, GR | daily high max | 35.9 C (96.6 F) | 0.3 C (0.5 F) | 16 years | 12 of 100 (Routine) |
| 10 June 2025 | Hellinikon, GR | daily high min | 24.7 C (76.5 F) | 0.3 C (0.5 F) | 36 years | 19 of 100 (Routine) |
| 9 June 2025 | Hellinikon, GR | daily high max | 35.4 C (95.7 F) | 0.4 C (0.7 F) | 24 years | 15 of 100 (Routine) |
| 8 May 2025 | Hellinikon, GR | daily high max (Tie) | 31.0 C (87.8 F) | tie | 4 years | 2 of 100 (Routine) |
| 23 April 2025 | Hellinikon, GR | daily high max | 26.4 C (79.5 F) | 1.2 C (2.2 F) | 7 years | 13 of 100 (Routine) |
| 31 March 2025 | Hellinikon, GR | daily low min | 0.0 C (32.0 F) | 4.7 C (8.5 F) | 68 years | 42 of 100 (Notable) |
| 26 March 2025 | Hellinikon, GR | daily high min | 14.3 C (57.7 F) | 0.3 C (0.5 F) | 42 years | 20 of 100 (Routine) |
| 24 March 2025 | Hellinikon, GR | daily high min | 14.7 C (58.5 F) | 0.7 C (1.3 F) | 48 years | 23 of 100 (Routine) |
Climate Trend
56 complete years, 1955 to 2021| Year | Annual mean temperature | Difference from the station mean |
|---|---|---|
| 1955 | 18.8 C | +0.41 C |
| 1956 | 18.1 C | -0.22 C |
| 1957 | 18.4 C | +0.05 C |
| 1958 | 18.8 C | +0.48 C |
| 1959 | 17.9 C | -0.49 C |
| 1960 | 19.0 C | +0.64 C |
| 1961 | 18.7 C | +0.33 C |
| 1962 | 19.1 C | +0.72 C |
| 1963 | 19.0 C | +0.67 C |
| 1964 | 18.1 C | -0.23 C |
| 1965 | 18.5 C | +0.13 C |
| 1966 | 19.4 C | +1.01 C |
| 1967 | 18.6 C | +0.26 C |
| 1968 | 18.2 C | -0.14 C |
| 1969 | 18.0 C | -0.33 C |
| 1970 | 18.3 C | -0.07 C |
| 1971 | 17.7 C | -0.64 C |
| 1972 | 17.7 C | -0.64 C |
| 1973 | 18.2 C | -0.16 C |
| 1974 | 18.1 C | -0.23 C |
| 1975 | 18.1 C | -0.25 C |
| 1976 | 17.4 C | -0.99 C |
| 1977 | 18.5 C | +0.14 C |
| 1978 | 17.8 C | -0.53 C |
| 1979 | 18.2 C | -0.12 C |
| 1980 | 17.8 C | -0.59 C |
| 1981 | 18.0 C | -0.33 C |
| 1982 | 17.4 C | -0.97 C |
| 1983 | 17.2 C | -1.12 C |
| 1984 | 17.5 C | -0.88 C |
| 1985 | 18.0 C | -0.39 C |
| 1986 | 18.2 C | -0.15 C |
| 1987 | 17.7 C | -0.70 C |
| 1988 | 18.1 C | -0.29 C |
| 1989 | 17.7 C | -0.62 C |
| 1990 | 18.6 C | +0.23 C |
| 1991 | 17.4 C | -0.94 C |
| 1992 | 17.5 C | -0.84 C |
| 1993 | 18.1 C | -0.27 C |
| 1994 | 19.0 C | +0.62 C |
| 1995 | 18.5 C | +0.13 C |
| 1996 | 18.2 C | -0.14 C |
| 1997 | 18.0 C | -0.39 C |
| 1998 | 18.6 C | +0.28 C |
| 1999 | 19.4 C | +1.01 C |
| 2000 | 19.0 C | +0.60 C |
| 2004 | 18.3 C | -0.04 C |
| 2005 | 17.8 C | -0.53 C |
| 2008 | 18.8 C | +0.45 C |
| 2009 | 18.7 C | +0.30 C |
| 2010 | 19.5 C | +1.11 C |
| 2011 | 17.9 C | -0.48 C |
| 2018 | 19.8 C | +1.41 C |
| 2019 | 19.4 C | +1.05 C |
| 2020 | 19.5 C | +1.10 C |
| 2021 | 19.8 C | +1.43 C |
The annual mean temperature here has risen by 0.09 C (0.00 to 0.19) per decade over 1955 to 2021. In Fahrenheit: 0.17 F (0.01 to 0.33) 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 | 0.09 C (0.00 to 0.19) per decade | 0.17 F (0.01 to 0.33) per decade | 1955 to 2021 | 56 | Rise |
| Mean daily maximum | 0.14 C (0.04 to 0.24) per decade | 0.3 F (0.1 to 0.4) per decade | 1955 to 2021 | 56 | Rise |
| Mean daily minimum | 0.05 C (-0.04 to 0.14) per decade | 0.1 F (-0.1 to 0.2) per decade | 1955 to 2021 | 56 | 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
1955 to 2025| Measure | Record | Year of the record | Median year | Years with a value |
|---|---|---|---|---|
| Hottest day (TXx) | 43.0 C (109.4 F) | 2021 | 38.0 C (100.4 F) | 71 |
| Coldest night (TNn) | -4.2 C (24.4 F) | 2008 | -0.2 C (31.6 F) | 71 |
| Wettest day (Rx1day) | 142.0 mm (5.6 in) | 1998 | 42.7 mm (1.7 in) | 71 |
| Wettest five days (Rx5day) | 178.8 mm (7.0 in) | 1998 | 65.4 mm (2.6 in) | 70 |
| Longest dry spell (CDD) | 156 days | 1993 | 65 days | 71 |
Hottest day (TXx)
| Year | Hottest day (TXx) |
|---|---|
| 1955 | 35.0 C (95.0 F) |
| 1956 | 39.2 C (102.6 F) |
| 1957 | 41.9 C (107.4 F) |
| 1958 | 40.1 C (104.2 F) |
| 1959 | 36.8 C (98.2 F) |
| 1960 | 36.3 C (97.3 F) |
| 1961 | 36.3 C (97.3 F) |
| 1962 | 38.1 C (100.6 F) |
| 1963 | 39.2 C (102.6 F) |
| 1964 | 35.2 C (95.4 F) |
| 1965 | 37.0 C (98.6 F) |
| 1966 | 39.6 C (103.3 F) |
| 1967 | 37.2 C (99.0 F) |
| 1968 | 39.3 C (102.7 F) |
| 1969 | 34.2 C (93.6 F) |
| 1970 | 35.0 C (95.0 F) |
| 1971 | 37.2 C (99.0 F) |
| 1972 | 36.6 C (97.9 F) |
| 1973 | 39.2 C (102.6 F) |
| 1974 | 38.0 C (100.4 F) |
| 1975 | 35.8 C (96.4 F) |
| 1976 | 32.6 C (90.7 F) |
| 1977 | 37.5 C (99.5 F) |
| 1978 | 37.8 C (100.0 F) |
| 1979 | 38.0 C (100.4 F) |
| 1980 | 38.0 C (100.4 F) |
| 1981 | 36.5 C (97.7 F) |
| 1982 | 37.5 C (99.5 F) |
| 1983 | 34.7 C (94.5 F) |
| 1984 | 35.0 C (95.0 F) |
| 1985 | 37.2 C (99.0 F) |
| 1986 | 35.0 C (95.0 F) |
| 1987 | 41.6 C (106.9 F) |
| 1988 | 42.0 C (107.6 F) |
| 1989 | 34.6 C (94.3 F) |
| 1990 | 36.4 C (97.5 F) |
| 1991 | 34.8 C (94.6 F) |
| 1992 | 35.6 C (96.1 F) |
| 1993 | 40.0 C (104.0 F) |
| 1994 | 38.4 C (101.1 F) |
| 1995 | 36.4 C (97.5 F) |
| 1996 | 37.6 C (99.7 F) |
| 1997 | 37.0 C (98.6 F) |
| 1998 | 39.6 C (103.3 F) |
| 1999 | 40.2 C (104.4 F) |
| 2000 | 40.2 C (104.4 F) |
| 2001 | 39.6 C (103.3 F) |
| 2002 | 38.2 C (100.8 F) |
| 2003 | 38.0 C (100.4 F) |
| 2004 | 37.6 C (99.7 F) |
| 2005 | 39.2 C (102.6 F) |
| 2006 | 39.8 C (103.6 F) |
| 2007 | 41.2 C (106.2 F) |
| 2008 | 38.2 C (100.8 F) |
| 2009 | 38.6 C (101.5 F) |
| 2010 | 40.0 C (104.0 F) |
| 2011 | 38.8 C (101.8 F) |
| 2012 | 40.0 C (104.0 F) |
| 2013 | 23.4 C (74.1 F) |
| 2014 | 34.1 C (93.4 F) |
| 2015 | 37.2 C (99.0 F) |
| 2016 | 32.2 C (90.0 F) |
| 2017 | 40.7 C (105.3 F) |
| 2018 | 36.6 C (97.9 F) |
| 2019 | 38.2 C (100.8 F) |
| 2020 | 38.4 C (101.1 F) |
| 2021 | 43.0 C (109.4 F) |
| 2022 | 37.8 C (100.0 F) |
| 2023 | 41.6 C (106.9 F) |
| 2024 | 39.6 C (103.3 F) |
| 2025 | 41.6 C (106.9 F) |
Coldest night (TNn)
| Year | Coldest night (TNn) |
|---|---|
| 1955 | 0.0 C (32.0 F) |
| 1956 | -2.2 C (28.0 F) |
| 1957 | -1.1 C (30.0 F) |
| 1958 | 0.7 C (33.3 F) |
| 1959 | -0.2 C (31.6 F) |
| 1960 | -1.9 C (28.6 F) |
| 1961 | -0.7 C (30.7 F) |
| 1962 | 1.8 C (35.2 F) |
| 1963 | -2.2 C (28.0 F) |
| 1964 | -1.2 C (29.8 F) |
| 1965 | -1.7 C (28.9 F) |
| 1966 | -1.0 C (30.2 F) |
| 1967 | -1.4 C (29.5 F) |
| 1968 | -2.9 C (26.8 F) |
| 1969 | -1.0 C (30.2 F) |
| 1970 | 1.8 C (35.2 F) |
| 1971 | 0.0 C (32.0 F) |
| 1972 | 0.5 C (32.9 F) |
| 1973 | -1.8 C (28.8 F) |
| 1974 | -0.2 C (31.6 F) |
| 1975 | -0.8 C (30.6 F) |
| 1976 | -1.4 C (29.5 F) |
| 1977 | 0.8 C (33.4 F) |
| 1978 | 0.7 C (33.3 F) |
| 1979 | -2.4 C (27.7 F) |
| 1980 | 0.0 C (32.0 F) |
| 1981 | -0.8 C (30.6 F) |
| 1982 | -0.2 C (31.6 F) |
| 1983 | -3.2 C (26.2 F) |
| 1984 | 1.2 C (34.2 F) |
| 1985 | -1.3 C (29.7 F) |
| 1986 | 0.6 C (33.1 F) |
| 1987 | -1.6 C (29.1 F) |
| 1988 | 2.2 C (36.0 F) |
| 1989 | 0.0 C (32.0 F) |
| 1990 | -0.2 C (31.6 F) |
| 1991 | -1.2 C (29.8 F) |
| 1992 | -1.2 C (29.8 F) |
| 1993 | 1.0 C (33.8 F) |
| 1994 | 2.0 C (35.6 F) |
| 1995 | 0.8 C (33.4 F) |
| 1996 | 0.6 C (33.1 F) |
| 1997 | 1.4 C (34.5 F) |
| 1998 | 0.0 C (32.0 F) |
| 1999 | 1.6 C (34.9 F) |
| 2000 | -0.8 C (30.6 F) |
| 2001 | -1.8 C (28.8 F) |
| 2002 | -2.2 C (28.0 F) |
| 2003 | -0.8 C (30.6 F) |
| 2004 | -3.8 C (25.2 F) |
| 2005 | -1.0 C (30.2 F) |
| 2006 | -2.8 C (27.0 F) |
| 2007 | 0.6 C (33.1 F) |
| 2008 | -4.2 C (24.4 F) |
| 2009 | 0.6 C (33.1 F) |
| 2010 | 0.0 C (32.0 F) |
| 2011 | -1.8 C (28.8 F) |
| 2012 | -2.0 C (28.4 F) |
| 2013 | 6.4 C (43.5 F) |
| 2014 | 2.2 C (36.0 F) |
| 2015 | -0.2 C (31.6 F) |
| 2016 | 0.3 C (32.5 F) |
| 2017 | -1.5 C (29.3 F) |
| 2018 | 2.2 C (36.0 F) |
| 2019 | -1.2 C (29.8 F) |
| 2020 | 2.4 C (36.3 F) |
| 2021 | -0.4 C (31.3 F) |
| 2022 | -0.8 C (30.6 F) |
| 2023 | 0.0 C (32.0 F) |
| 2024 | 3.9 C (39.0 F) |
| 2025 | 0.0 C (32.0 F) |
Wettest day (Rx1day)
| Year | Wettest day (Rx1day) |
|---|---|
| 1955 | 42.7 mm (1.7 in) |
| 1956 | 19.2 mm (0.8 in) |
| 1957 | 80.2 mm (3.2 in) |
| 1958 | 66.8 mm (2.6 in) |
| 1959 | 19.8 mm (0.8 in) |
| 1960 | 27.8 mm (1.1 in) |
| 1961 | 45.6 mm (1.8 in) |
| 1962 | 39.2 mm (1.5 in) |
| 1963 | 32.6 mm (1.3 in) |
| 1964 | 33.9 mm (1.3 in) |
| 1965 | 34.5 mm (1.4 in) |
| 1966 | 39.6 mm (1.6 in) |
| 1967 | 50.7 mm (2.0 in) |
| 1968 | 38.0 mm (1.5 in) |
| 1969 | 42.3 mm (1.7 in) |
| 1970 | 37.1 mm (1.5 in) |
| 1971 | 30.4 mm (1.2 in) |
| 1972 | 70.2 mm (2.8 in) |
| 1973 | 64.3 mm (2.5 in) |
| 1974 | 48.1 mm (1.9 in) |
| 1975 | 50.0 mm (2.0 in) |
| 1976 | 54.5 mm (2.1 in) |
| 1977 | 50.4 mm (2.0 in) |
| 1978 | 80.9 mm (3.2 in) |
| 1979 | 28.5 mm (1.1 in) |
| 1980 | 46.8 mm (1.8 in) |
| 1981 | 28.0 mm (1.1 in) |
| 1982 | 27.4 mm (1.1 in) |
| 1983 | 55.0 mm (2.2 in) |
| 1984 | 43.6 mm (1.7 in) |
| 1985 | 81.6 mm (3.2 in) |
| 1986 | 41.4 mm (1.6 in) |
| 1987 | 92.3 mm (3.6 in) |
| 1988 | 50.5 mm (2.0 in) |
| 1989 | 44.4 mm (1.7 in) |
| 1990 | 24.9 mm (1.0 in) |
| 1991 | 80.2 mm (3.2 in) |
| 1992 | 34.7 mm (1.4 in) |
| 1993 | 79.6 mm (3.1 in) |
| 1994 | 42.7 mm (1.7 in) |
| 1995 | 39.8 mm (1.6 in) |
| 1996 | 24.3 mm (1.0 in) |
| 1997 | 41.5 mm (1.6 in) |
| 1998 | 142.0 mm (5.6 in) |
| 1999 | 98.5 mm (3.9 in) |
| 2000 | 41.0 mm (1.6 in) |
| 2001 | 96.8 mm (3.8 in) |
| 2002 | 59.6 mm (2.3 in) |
| 2003 | 62.0 mm (2.4 in) |
| 2004 | 61.1 mm (2.4 in) |
| 2005 | 88.1 mm (3.5 in) |
| 2006 | 41.4 mm (1.6 in) |
| 2007 | 38.9 mm (1.5 in) |
| 2008 | 36.3 mm (1.4 in) |
| 2009 | 27.7 mm (1.1 in) |
| 2010 | 71.1 mm (2.8 in) |
| 2011 | 83.3 mm (3.3 in) |
| 2012 | 27.9 mm (1.1 in) |
| 2013 | 1.8 mm (0.07 in) |
| 2014 | 69.1 mm (2.7 in) |
| 2015 | 30.2 mm (1.2 in) |
| 2016 | 36.1 mm (1.4 in) |
| 2017 | 57.2 mm (2.3 in) |
| 2018 | 51.8 mm (2.0 in) |
| 2019 | 68.3 mm (2.7 in) |
| 2020 | 20.1 mm (0.8 in) |
| 2021 | 79.2 mm (3.1 in) |
| 2022 | 28.2 mm (1.1 in) |
| 2023 | 83.1 mm (3.3 in) |
| 2024 | 17.0 mm (0.7 in) |
| 2025 | 24.4 mm (1.0 in) |
Wettest five days (Rx5day)
| Year | Wettest five days (Rx5day) |
|---|---|
| 1955 | 111.5 mm (4.4 in) |
| 1956 | 29.2 mm (1.1 in) |
| 1957 | 126.1 mm (5.0 in) |
| 1958 | 77.7 mm (3.1 in) |
| 1959 | 28.3 mm (1.1 in) |
| 1960 | 58.4 mm (2.3 in) |
| 1961 | 72.3 mm (2.8 in) |
| 1962 | 81.3 mm (3.2 in) |
| 1963 | 54.1 mm (2.1 in) |
| 1964 | 55.1 mm (2.2 in) |
| 1965 | 51.6 mm (2.0 in) |
| 1966 | 39.6 mm (1.6 in) |
| 1967 | 95.1 mm (3.7 in) |
| 1968 | 60.4 mm (2.4 in) |
| 1969 | 54.1 mm (2.1 in) |
| 1970 | 47.6 mm (1.9 in) |
| 1971 | 71.7 mm (2.8 in) |
| 1972 | 94.9 mm (3.7 in) |
| 1973 | 74.8 mm (2.9 in) |
| 1974 | 54.2 mm (2.1 in) |
| 1975 | 56.8 mm (2.2 in) |
| 1976 | 78.5 mm (3.1 in) |
| 1977 | 68.0 mm (2.7 in) |
| 1978 | 81.3 mm (3.2 in) |
| 1979 | 50.5 mm (2.0 in) |
| 1980 | 58.3 mm (2.3 in) |
| 1981 | 59.4 mm (2.3 in) |
| 1982 | 66.4 mm (2.6 in) |
| 1983 | 72.8 mm (2.9 in) |
| 1984 | 56.1 mm (2.2 in) |
| 1985 | 87.4 mm (3.4 in) |
| 1986 | 49.8 mm (2.0 in) |
| 1987 | 94.3 mm (3.7 in) |
| 1988 | 80.3 mm (3.2 in) |
| 1989 | 69.2 mm (2.7 in) |
| 1990 | 40.8 mm (1.6 in) |
| 1991 | 83.7 mm (3.3 in) |
| 1992 | 50.9 mm (2.0 in) |
| 1993 | 142.3 mm (5.6 in) |
| 1994 | 64.6 mm (2.5 in) |
| 1995 | 55.1 mm (2.2 in) |
| 1996 | 43.0 mm (1.7 in) |
| 1997 | 54.6 mm (2.1 in) |
| 1998 | 178.8 mm (7.0 in) |
| 1999 | 105.3 mm (4.1 in) |
| 2000 | 50.0 mm (2.0 in) |
| 2001 | 126.2 mm (5.0 in) |
| 2002 | 107.9 mm (4.2 in) |
| 2003 | 62.9 mm (2.5 in) |
| 2004 | 65.1 mm (2.6 in) |
| 2005 | 40.7 mm (1.6 in) |
| 2006 | 65.6 mm (2.6 in) |
| 2007 | 69.7 mm (2.7 in) |
| 2008 | 60.7 mm (2.4 in) |
| 2009 | 38.4 mm (1.5 in) |
| 2010 | 94.2 mm (3.7 in) |
| 2011 | 84.4 mm (3.3 in) |
| 2012 | 26.7 mm (1.1 in) |
| 2013 | n/a |
| 2014 | 134.9 mm (5.3 in) |
| 2015 | 42.2 mm (1.7 in) |
| 2016 | 92.2 mm (3.6 in) |
| 2017 | 79.1 mm (3.1 in) |
| 2018 | 71.8 mm (2.8 in) |
| 2019 | 84.0 mm (3.3 in) |
| 2020 | 61.2 mm (2.4 in) |
| 2021 | 87.3 mm (3.4 in) |
| 2022 | 40.4 mm (1.6 in) |
| 2023 | 84.1 mm (3.3 in) |
| 2024 | 14.0 mm (0.6 in) |
| 2025 | 24.7 mm (1.0 in) |
Longest dry spell (CDD)
| Year | Longest dry spell (CDD) |
|---|---|
| 1955 | 89 days |
| 1956 | 81 days |
| 1957 | 107 days |
| 1958 | 88 days |
| 1959 | 53 days |
| 1960 | 58 days |
| 1961 | 113 days |
| 1962 | 138 days |
| 1963 | 77 days |
| 1964 | 52 days |
| 1965 | 71 days |
| 1966 | 46 days |
| 1967 | 58 days |
| 1968 | 47 days |
| 1969 | 75 days |
| 1970 | 71 days |
| 1971 | 90 days |
| 1972 | 33 days |
| 1973 | 40 days |
| 1974 | 71 days |
| 1975 | 44 days |
| 1976 | 74 days |
| 1977 | 95 days |
| 1978 | 62 days |
| 1979 | 49 days |
| 1980 | 59 days |
| 1981 | 149 days |
| 1982 | 45 days |
| 1983 | 78 days |
| 1984 | 92 days |
| 1985 | 98 days |
| 1986 | 126 days |
| 1987 | 87 days |
| 1988 | 88 days |
| 1989 | 107 days |
| 1990 | 68 days |
| 1991 | 49 days |
| 1992 | 95 days |
| 1993 | 156 days |
| 1994 | 88 days |
| 1995 | 56 days |
| 1996 | 70 days |
| 1997 | 67 days |
| 1998 | 112 days |
| 1999 | 66 days |
| 2000 | 86 days |
| 2001 | 65 days |
| 2002 | 74 days |
| 2003 | 74 days |
| 2004 | 89 days |
| 2005 | 27 days |
| 2006 | 44 days |
| 2007 | 56 days |
| 2008 | 34 days |
| 2009 | 49 days |
| 2010 | 91 days |
| 2011 | 63 days |
| 2012 | 28 days |
| 2013 | 1 day |
| 2014 | 9 days |
| 2015 | 38 days |
| 2016 | 31 days |
| 2017 | 28 days |
| 2018 | 50 days |
| 2019 | 48 days |
| 2020 | 41 days |
| 2021 | 19 days |
| 2022 | 51 days |
| 2023 | 15 days |
| 2024 | 12 days |
| 2025 | 7 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.
Rainfall Return Levels
60 years, 1955 to 2020A day with at least 45.3 mm (1.8 in) of rain is expected about once in 2 years. A day with at least 136.1 mm (5.4 in) of rain is expected about once in 100 years.
| Expected about once in | A day with at least | Note |
|---|---|---|
| 2 years | 45.3 mm (1.8 in) | |
| 5 years | 65.6 mm (2.6 in) | |
| 10 years | 80.6 mm (3.2 in) | |
| 25 years | 101.3 mm (4.0 in) | |
| 50 years | 118.1 mm (4.6 in) | |
| 100 years | 136.1 mm (5.4 in) | Longer than the 60 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, 60 years of values from 1955 to 2020.
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: 142.0 mm (5.6 in) in 1998; 98.5 mm (3.9 in) in 1999; 96.8 mm (3.8 in) in 2001.
Station Changes
1 suspectedOne change was suspected in the annual mean temperature of Hellinikon, at 1968. Each is measured against neighbouring stations.
- Relative to 4 neighbouring stations, the station's annual mean temperature from 1968 ran 0.4 C (0.7 F) lower than in the years before (likely change).
| Year | Shift (C) | Shift (F) | Strength | Neighbours |
|---|---|---|---|---|
| 1968 | -0.4 | -0.7 | likely | 4 |
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.
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 (2025-12-31).