Slatteroy Fyr Weather Records (NOE00110725)
Record envelope, standing records and threshold days for Slatteroy Fyr (NOE00110725), Norway, with 74 years of record.
Key Facts for Slatteroy Fyr
- Slatteroy Fyr (NOE00110725) is a weather station in Norway at 59.91 latitude and 5.07 longitude, 25 m (82 ft) above sea level.
- The station reports from 1953 to 2026, 74 years of record.
- 1,464 records set at Slatteroy Fyr still stand.
- Records are tracked for tmax, tmin, prcp: an element needs 30 years of data to be eligible.
- Slatteroy Fyr set a daily record high maximum temperature of 22.3 C (72.1 F) on 27 August 2026 (provisional).
Provisional Records
Records set in the last 60 days are provisional until they clear the revision window.
About the Station
- Location: Norway, 59.91 latitude, 5.07 longitude.
- Elevation: 25 m (82 ft).
- Period of record: 1953 to 2026, 74 years.
- Eligible elements: tmax, tmin, prcp.
Daily Record Envelope and 2026
4 days at or beyond a record| Month | Highest record high | Lowest record low | 2026 highest maximum | 2026 lowest minimum |
|---|---|---|---|---|
| Jan | 12.5 C (54.5 F) | -12.6 C (9.3 F) | 7.9 C (46.2 F) | -5.0 C (23.0 F) |
| Feb | 11.2 C (52.2 F) | -10.0 C (14.0 F) | 7.7 C (45.9 F) | -4.6 C (23.7 F) |
| Mar | 15.1 C (59.2 F) | -8.3 C (17.1 F) | 11.1 C (52.0 F) | 0.9 C (33.6 F) |
| Apr | 22.9 C (73.2 F) | -3.6 C (25.5 F) | 13.3 C (55.9 F) | 1.9 C (35.4 F) |
| May | 26.4 C (79.5 F) | -3.1 C (26.4 F) | 17.9 C (64.2 F) | 2.3 C (36.1 F) |
| Jun | 28.0 C (82.4 F) | 3.6 C (38.5 F) | 22.8 C (73.0 F) | 9.2 C (48.6 F) |
| Jul | 30.9 C (87.6 F) | 7.0 C (44.6 F) | 17.6 C (63.7 F) | 9.3 C (48.7 F) |
| Aug | 29.6 C (85.3 F) | 8.0 C (46.4 F) | 22.3 C (72.1 F) | 9.8 C (49.6 F) |
| Sep | 25.7 C (78.3 F) | 4.4 C (39.9 F) | n/a | n/a |
| Oct | 21.4 C (70.5 F) | 0.3 C (32.5 F) | n/a | n/a |
| Nov | 16.7 C (62.1 F) | -5.7 C (21.7 F) | n/a | n/a |
| Dec | 12.6 C (54.7 F) | -10.2 C (13.6 F) | n/a | n/a |
Which Years Hold Standing Records
1,464 standing records| Year set | Standing records |
|---|---|
| 1954 | 7 |
| 1955 | 41 |
| 1956 | 24 |
| 1957 | 5 |
| 1958 | 43 |
| 1959 | 21 |
| 1960 | 15 |
| 1961 | 11 |
| 1962 | 22 |
| 1963 | 12 |
| 1964 | 22 |
| 1965 | 27 |
| 1966 | 33 |
| 1967 | 11 |
| 1968 | 33 |
| 1969 | 25 |
| 1970 | 15 |
| 1971 | 21 |
| 1972 | 12 |
| 1973 | 29 |
| 1974 | 7 |
| 1975 | 8 |
| 1976 | 13 |
| 1977 | 30 |
| 1978 | 25 |
| 1979 | 27 |
| 1980 | 7 |
| 1981 | 31 |
| 1982 | 24 |
| 1983 | 8 |
| 1984 | 26 |
| 1985 | 16 |
| 1986 | 32 |
| 1987 | 26 |
| 1988 | 6 |
| 1989 | 17 |
| 1990 | 30 |
| 1991 | 7 |
| 1992 | 20 |
| 1993 | 14 |
| 1994 | 19 |
| 1995 | 20 |
| 1996 | 13 |
| 1997 | 20 |
| 1998 | 17 |
| 1999 | 12 |
| 2000 | 20 |
| 2001 | 11 |
| 2002 | 30 |
| 2003 | 13 |
| 2004 | 13 |
| 2005 | 14 |
| 2006 | 26 |
| 2007 | 21 |
| 2008 | 13 |
| 2009 | 15 |
| 2010 | 30 |
| 2011 | 18 |
| 2012 | 12 |
| 2013 | 12 |
| 2014 | 25 |
| 2015 | 17 |
| 2016 | 28 |
| 2017 | 12 |
| 2018 | 27 |
| 2019 | 40 |
| 2020 | 30 |
| 2021 | 11 |
| 2022 | 23 |
| 2023 | 14 |
| 2024 | 40 |
| 2025 | 42 |
| 2026 | 3 |
All-Time Record Progression
6 new records| Date | Kind | Detail |
|---|---|---|
| 1987-01-10 | Record low minimum temperature | Record low minimum temperature -12.0 C (10.4 F) |
| 1987-01-11 | Record low minimum temperature | Record low minimum temperature -12.6 C (9.3 F) |
| 1998-11-22 | Record daily precipitation | Record daily precipitation 69.1 mm (2.7 in) |
| 2002-08-20 | Record daily precipitation | Record daily precipitation 84.5 mm (3.3 in) |
| 2018-07-27 | Record high maximum temperature | Record high maximum temperature 30.2 C (86.4 F) |
| 2019-07-26 | Record high maximum temperature | Record high maximum temperature 30.9 C (87.6 F) |
Wettest Day of Each Month
Aug: 84.5 mm (3.3 in)| Month | Record daily precipitation (mm) | Date |
|---|---|---|
| Jan | 57.0 mm (2.2 in) | 31 January 1981 |
| Feb | 38.7 mm (1.5 in) | 8 February 1998 |
| Mar | 40.0 mm (1.6 in) | 22 March 1986 |
| Apr | 28.0 mm (1.1 in) | 2 April 1990 |
| May | 44.3 mm (1.7 in) | 29 May 1971 |
| Jun | 52.0 mm (2.0 in) | 22 June 2002 |
| Jul | 45.6 mm (1.8 in) | 21 July 1970 |
| Aug | 84.5 mm (3.3 in) | 20 August 2002 |
| Sep | 52.5 mm (2.1 in) | 10 September 1982 |
| Oct | 56.7 mm (2.2 in) | 3 October 1996 |
| Nov | 69.1 mm (2.7 in) | 22 November 1998 |
| Dec | 41.5 mm (1.6 in) | 24 December 1984 |
Period of Record Coverage
1955 to 2026| Year | Days with data | Share of year | Complete |
|---|---|---|---|
| 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 | 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 | 365 | 100% | Yes |
| 1979 | 365 | 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 | 274 | 75% | No |
| 2000 | 329 | 90% | No |
| 2001 | 365 | 100% | Yes |
| 2002 | 365 | 100% | Yes |
| 2003 | 365 | 100% | Yes |
| 2004 | 360 | 98% | Yes |
| 2005 | 313 | 86% | No |
| 2006 | 332 | 91% | Yes |
| 2007 | 365 | 100% | Yes |
| 2008 | 366 | 100% | Yes |
| 2009 | 365 | 100% | 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 | 365 | 100% | Yes |
| 2023 | 365 | 100% | Yes |
| 2024 | 366 | 100% | Yes |
| 2025 | 365 | 100% | Yes |
| 2026 | 243 | 67% | No |
Latest Records
20| Date | Station | Record | Value | Beat old record by | Old record stood | Significance |
|---|---|---|---|---|---|---|
| 27 August 2026 | Slatteroy Fyr, NO | daily high max (Provisional) | 22.3 C (72.1 F) | 0.7 C (1.3 F) | 7 years | 11 of 100 (Routine) |
| 12 August 2026 | Slatteroy Fyr, NO | daily low min (Tie) | 9.8 C (49.6 F) | tie | 27 years | 3 of 100 (Routine) |
| 9 April 2026 | Slatteroy Fyr, NO | daily high min | 8.2 C (46.8 F) | 1.1 C (2.0 F) | 1 year | 11 of 100 (Routine) |
| 5 March 2026 | Slatteroy Fyr, NO | daily high max (Tie) | 11.1 C (52.0 F) | tie | 1 year | 1 of 100 (Routine) |
| 27 February 2026 | Slatteroy Fyr, NO | daily high min | 6.4 C (43.5 F) | 0.6 C (1.1 F) | 48 years | 23 of 100 (Routine) |
| 4 January 2026 | Slatteroy Fyr, NO | daily low min | -4.9 C (23.2 F) | 0.2 C (0.4 F) | 2 years | 7 of 100 (Routine) |
| 4 January 2026 | Slatteroy Fyr, NO | daily low max (Tie) | -2.2 C (28.0 F) | tie | 44 years | 5 of 100 (Routine) |
| 18 December 2025 | Slatteroy Fyr, NO | daily high max | 10.6 C (51.1 F) | 0.5 C (0.9 F) | 10 years | 11 of 100 (Routine) |
| 15 December 2025 | Slatteroy Fyr, NO | daily high max (Tie) | 10.6 C (51.1 F) | tie | 52 years | 5 of 100 (Routine) |
| 15 December 2025 | Slatteroy Fyr, NO | daily high min (Tie) | 8.5 C (47.3 F) | tie | 4 years | 2 of 100 (Routine) |
| 14 December 2025 | Slatteroy Fyr, NO | daily high min | 8.6 C (47.5 F) | 0.8 C (1.4 F) | 52 years | 24 of 100 (Routine) |
| 14 December 2025 | Slatteroy Fyr, NO | daily high max | 10.9 C (51.6 F) | 1.3 C (2.3 F) | 34 years | 21 of 100 (Routine) |
| 12 December 2025 | Slatteroy Fyr, NO | daily high min | 8.6 C (47.5 F) | 1.2 C (2.2 F) | 44 years | 24 of 100 (Routine) |
| 11 December 2025 | Slatteroy Fyr, NO | daily high max | 11.0 C (51.8 F) | 0.5 C (0.9 F) | 20 years | 14 of 100 (Routine) |
| 11 December 2025 | Slatteroy Fyr, NO | daily high min | 8.9 C (48.0 F) | 0.4 C (0.7 F) | 20 years | 14 of 100 (Routine) |
| 10 December 2025 | Slatteroy Fyr, NO | daily high max | 11.1 C (52.0 F) | 0.7 C (1.3 F) | 20 years | 15 of 100 (Routine) |
| 28 November 2025 | Slatteroy Fyr, NO | daily high max | 11.4 C (52.5 F) | 1.1 C (2.0 F) | 39 years | 22 of 100 (Routine) |
| 28 November 2025 | Slatteroy Fyr, NO | daily high min | 9.9 C (49.8 F) | 0.8 C (1.4 F) | 39 years | 20 of 100 (Routine) |
| 9 November 2025 | Slatteroy Fyr, NO | daily high min | 9.9 C (49.8 F) | 0.5 C (0.9 F) | 40 years | 20 of 100 (Routine) |
| 8 November 2025 | Slatteroy Fyr, NO | daily high min | 9.9 C (49.8 F) | 0.2 C (0.4 F) | 24 years | 14 of 100 (Routine) |
Climate Trend
67 complete years, 1955 to 2025| Year | Annual mean temperature | Difference from the station mean |
|---|---|---|
| 1955 | 7.4 C | -0.73 C |
| 1956 | 7.4 C | -0.78 C |
| 1957 | 7.9 C | -0.23 C |
| 1958 | 7.8 C | -0.35 C |
| 1959 | 8.7 C | +0.59 C |
| 1960 | 8.1 C | -0.04 C |
| 1961 | 8.3 C | +0.16 C |
| 1962 | 7.2 C | -0.99 C |
| 1963 | 7.4 C | -0.79 C |
| 1964 | 7.7 C | -0.48 C |
| 1965 | 7.5 C | -0.68 C |
| 1966 | 7.0 C | -1.15 C |
| 1967 | 7.9 C | -0.22 C |
| 1968 | 7.5 C | -0.61 C |
| 1969 | 7.4 C | -0.77 C |
| 1970 | 7.1 C | -1.07 C |
| 1971 | 7.9 C | -0.24 C |
| 1972 | 7.8 C | -0.32 C |
| 1973 | 7.8 C | -0.37 C |
| 1974 | 8.6 C | +0.41 C |
| 1975 | 8.3 C | +0.15 C |
| 1976 | 7.5 C | -0.64 C |
| 1977 | 7.2 C | -0.98 C |
| 1978 | 7.4 C | -0.77 C |
| 1979 | 6.6 C | -1.59 C |
| 1980 | 7.6 C | -0.56 C |
| 1981 | 7.1 C | -1.04 C |
| 1982 | 8.0 C | -0.16 C |
| 1983 | 7.9 C | -0.21 C |
| 1984 | 7.8 C | -0.31 C |
| 1985 | 7.0 C | -1.13 C |
| 1986 | 7.2 C | -0.98 C |
| 1987 | 7.3 C | -0.82 C |
| 1988 | 8.4 C | +0.24 C |
| 1989 | 8.7 C | +0.53 C |
| 1990 | 9.1 C | +0.96 C |
| 1991 | 8.3 C | +0.20 C |
| 1992 | 8.8 C | +0.66 C |
| 1993 | 7.7 C | -0.49 C |
| 1994 | 8.0 C | -0.14 C |
| 1995 | 7.9 C | -0.20 C |
| 1996 | 7.5 C | -0.60 C |
| 1997 | 8.8 C | +0.61 C |
| 1998 | 8.0 C | -0.13 C |
| 2001 | 8.0 C | -0.12 C |
| 2002 | 9.2 C | +1.06 C |
| 2003 | 8.9 C | +0.78 C |
| 2004 | 8.8 C | +0.70 C |
| 2007 | 8.6 C | +0.50 C |
| 2008 | 9.3 C | +1.11 C |
| 2009 | 8.8 C | +0.69 C |
| 2010 | 7.1 C | -1.04 C |
| 2011 | 8.8 C | +0.70 C |
| 2012 | 8.0 C | -0.10 C |
| 2013 | 8.2 C | +0.02 C |
| 2014 | 9.9 C | +1.77 C |
| 2015 | 9.1 C | +0.96 C |
| 2016 | 8.9 C | +0.78 C |
| 2017 | 8.9 C | +0.75 C |
| 2018 | 8.6 C | +0.47 C |
| 2019 | 9.1 C | +0.93 C |
| 2020 | 9.5 C | +1.34 C |
| 2021 | 8.6 C | +0.46 C |
| 2022 | 9.2 C | +1.02 C |
| 2023 | 8.6 C | +0.50 C |
| 2024 | 9.5 C | +1.32 C |
| 2025 | 9.7 C | +1.58 C |
The annual mean temperature here has risen by 0.2 C (0.2 to 0.3) per decade over 1955 to 2025. In Fahrenheit: 0.4 F (0.3 to 0.6) per decade. The slope is a straight line fitted to 67 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 (0.2 to 0.3) per decade | 0.4 F (0.3 to 0.6) per decade | 1955 to 2025 | 67 | Rise |
| Mean daily maximum | 0.3 C (0.2 to 0.3) per decade | 0.5 F (0.3 to 0.6) per decade | 1955 to 2025 | 67 | Rise |
| Mean daily minimum | 0.2 C (0.2 to 0.3) per decade | 0.4 F (0.3 to 0.5) per decade | 1955 to 2025 | 67 | 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
1953 to 2026| Measure | Record | Year of the record | Median year | Years with a value |
|---|---|---|---|---|
| Hottest day (TXx) | 30.9 C (87.6 F) | 2019 | 25.0 C (76.9 F) | 72 |
| Coldest night (TNn) | -12.6 C (9.3 F) | 1987 | -4.6 C (23.7 F) | 73 |
| Wettest day (Rx1day) | 84.5 mm (3.3 in) | 2002 | 38.5 mm (1.5 in) | 54 |
| Wettest five days (Rx5day) | 134.0 mm (5.3 in) | 1998 | 79.4 mm (3.1 in) | 53 |
| Longest dry spell (CDD) | 246 days | 2004 | 19 days | 53 |
Hottest day (TXx)
| Year | Hottest day (TXx) |
|---|---|
| 1953 | n/a |
| 1954 | n/a |
| 1955 | 27.0 C (80.6 F) |
| 1956 | 22.0 C (71.6 F) |
| 1957 | 20.3 C (68.5 F) |
| 1958 | 27.4 C (81.3 F) |
| 1959 | 25.5 C (77.9 F) |
| 1960 | 23.9 C (75.0 F) |
| 1961 | 21.0 C (69.8 F) |
| 1962 | 18.5 C (65.3 F) |
| 1963 | 21.0 C (69.8 F) |
| 1964 | 23.0 C (73.4 F) |
| 1965 | 24.3 C (75.7 F) |
| 1966 | 28.0 C (82.4 F) |
| 1967 | 21.2 C (70.2 F) |
| 1968 | 26.8 C (80.2 F) |
| 1969 | 29.6 C (85.3 F) |
| 1970 | 25.8 C (78.4 F) |
| 1971 | 20.3 C (68.5 F) |
| 1972 | 20.5 C (68.9 F) |
| 1973 | 25.5 C (77.9 F) |
| 1974 | 24.7 C (76.5 F) |
| 1975 | 29.0 C (84.2 F) |
| 1976 | 23.0 C (73.4 F) |
| 1977 | 23.8 C (74.8 F) |
| 1978 | 28.4 C (83.1 F) |
| 1979 | 20.1 C (68.2 F) |
| 1980 | 25.6 C (78.1 F) |
| 1981 | 22.8 C (73.0 F) |
| 1982 | 26.2 C (79.2 F) |
| 1983 | 25.5 C (77.9 F) |
| 1984 | 24.5 C (76.1 F) |
| 1985 | 23.0 C (73.4 F) |
| 1986 | 21.9 C (71.4 F) |
| 1987 | 23.7 C (74.7 F) |
| 1988 | 21.2 C (70.2 F) |
| 1989 | 24.1 C (75.4 F) |
| 1990 | 23.1 C (73.6 F) |
| 1991 | 24.7 C (76.5 F) |
| 1992 | 26.1 C (79.0 F) |
| 1993 | 22.8 C (73.0 F) |
| 1994 | 28.1 C (82.6 F) |
| 1995 | 25.3 C (77.5 F) |
| 1996 | 28.4 C (83.1 F) |
| 1997 | 26.3 C (79.3 F) |
| 1998 | 23.4 C (74.1 F) |
| 1999 | 24.5 C (76.1 F) |
| 2000 | 22.9 C (73.2 F) |
| 2001 | 22.4 C (72.3 F) |
| 2002 | 27.8 C (82.0 F) |
| 2003 | 26.4 C (79.5 F) |
| 2004 | 28.1 C (82.6 F) |
| 2005 | 23.2 C (73.8 F) |
| 2006 | 25.6 C (78.1 F) |
| 2007 | 26.2 C (79.2 F) |
| 2008 | 28.2 C (82.8 F) |
| 2009 | 27.2 C (81.0 F) |
| 2010 | 22.7 C (72.9 F) |
| 2011 | 23.6 C (74.5 F) |
| 2012 | 22.7 C (72.9 F) |
| 2013 | 26.9 C (80.4 F) |
| 2014 | 27.4 C (81.3 F) |
| 2015 | 27.9 C (82.2 F) |
| 2016 | 25.7 C (78.3 F) |
| 2017 | 26.1 C (79.0 F) |
| 2018 | 30.2 C (86.4 F) |
| 2019 | 30.9 C (87.6 F) |
| 2020 | 27.5 C (81.5 F) |
| 2021 | 24.2 C (75.6 F) |
| 2022 | 25.2 C (77.4 F) |
| 2023 | 23.1 C (73.6 F) |
| 2024 | 26.8 C (80.2 F) |
| 2025 | 27.0 C (80.6 F) |
| 2026 | 22.8 C (73.0 F) |
Coldest night (TNn)
| Year | Coldest night (TNn) |
|---|---|
| 1953 | n/a |
| 1954 | -7.2 C (19.0 F) |
| 1955 | -7.6 C (18.3 F) |
| 1956 | -9.8 C (14.4 F) |
| 1957 | -3.0 C (26.6 F) |
| 1958 | -8.4 C (16.9 F) |
| 1959 | -4.8 C (23.4 F) |
| 1960 | -7.0 C (19.4 F) |
| 1961 | -4.2 C (24.4 F) |
| 1962 | -6.3 C (20.7 F) |
| 1963 | -7.4 C (18.7 F) |
| 1964 | -4.5 C (23.9 F) |
| 1965 | -5.0 C (23.0 F) |
| 1966 | -6.4 C (20.5 F) |
| 1967 | -4.8 C (23.4 F) |
| 1968 | -6.6 C (20.1 F) |
| 1969 | -8.6 C (16.5 F) |
| 1970 | -5.4 C (22.3 F) |
| 1971 | -4.5 C (23.9 F) |
| 1972 | -5.0 C (23.0 F) |
| 1973 | -4.0 C (24.8 F) |
| 1974 | -2.0 C (28.4 F) |
| 1975 | -2.0 C (28.4 F) |
| 1976 | -5.0 C (23.0 F) |
| 1977 | -3.9 C (25.0 F) |
| 1978 | -10.2 C (13.6 F) |
| 1979 | -11.0 C (12.2 F) |
| 1980 | -5.4 C (22.3 F) |
| 1981 | -5.6 C (21.9 F) |
| 1982 | -9.0 C (15.8 F) |
| 1983 | -3.2 C (26.2 F) |
| 1984 | -5.4 C (22.3 F) |
| 1985 | -6.6 C (20.1 F) |
| 1986 | -6.5 C (20.3 F) |
| 1987 | -12.6 C (9.3 F) |
| 1988 | -2.7 C (27.1 F) |
| 1989 | -2.2 C (28.0 F) |
| 1990 | -0.8 C (30.6 F) |
| 1991 | -4.6 C (23.7 F) |
| 1992 | -4.3 C (24.3 F) |
| 1993 | -3.0 C (26.6 F) |
| 1994 | -4.5 C (23.9 F) |
| 1995 | -5.0 C (23.0 F) |
| 1996 | -4.4 C (24.1 F) |
| 1997 | -4.4 C (24.1 F) |
| 1998 | -4.0 C (24.8 F) |
| 1999 | -4.1 C (24.6 F) |
| 2000 | -2.0 C (28.4 F) |
| 2001 | -10.0 C (14.0 F) |
| 2002 | -4.3 C (24.3 F) |
| 2003 | -4.1 C (24.6 F) |
| 2004 | -3.7 C (25.3 F) |
| 2005 | -4.4 C (24.1 F) |
| 2006 | -5.3 C (22.5 F) |
| 2007 | -3.8 C (25.2 F) |
| 2008 | -3.3 C (26.1 F) |
| 2009 | -5.1 C (22.8 F) |
| 2010 | -7.2 C (19.0 F) |
| 2011 | -4.4 C (24.1 F) |
| 2012 | -4.6 C (23.7 F) |
| 2013 | -4.9 C (23.2 F) |
| 2014 | -1.4 C (29.5 F) |
| 2015 | -0.6 C (30.9 F) |
| 2016 | -3.9 C (25.0 F) |
| 2017 | -4.1 C (24.6 F) |
| 2018 | -9.5 C (14.9 F) |
| 2019 | -2.1 C (28.2 F) |
| 2020 | -1.1 C (30.0 F) |
| 2021 | -5.9 C (21.4 F) |
| 2022 | -3.0 C (26.6 F) |
| 2023 | -3.9 C (25.0 F) |
| 2024 | -4.9 C (23.2 F) |
| 2025 | -3.6 C (25.5 F) |
| 2026 | -5.0 C (23.0 F) |
Wettest day (Rx1day)
| Year | Wettest day (Rx1day) |
|---|---|
| 1953 | 3.0 mm (0.12 in) |
| 1954 | 39.0 mm (1.5 in) |
| 1955 | 31.6 mm (1.2 in) |
| 1956 | 38.0 mm (1.5 in) |
| 1957 | 31.1 mm (1.2 in) |
| 1958 | 52.0 mm (2.0 in) |
| 1959 | 34.8 mm (1.4 in) |
| 1960 | 24.5 mm (1.0 in) |
| 1961 | 38.4 mm (1.5 in) |
| 1962 | 54.2 mm (2.1 in) |
| 1963 | 38.6 mm (1.5 in) |
| 1964 | 38.2 mm (1.5 in) |
| 1965 | 31.9 mm (1.3 in) |
| 1966 | 33.7 mm (1.3 in) |
| 1967 | 35.3 mm (1.4 in) |
| 1968 | 32.2 mm (1.3 in) |
| 1969 | 39.1 mm (1.5 in) |
| 1970 | 45.6 mm (1.8 in) |
| 1971 | 44.3 mm (1.7 in) |
| 1972 | 42.9 mm (1.7 in) |
| 1973 | 31.8 mm (1.3 in) |
| 1974 | 41.7 mm (1.6 in) |
| 1975 | 39.7 mm (1.6 in) |
| 1976 | 33.0 mm (1.3 in) |
| 1977 | 35.2 mm (1.4 in) |
| 1978 | 32.8 mm (1.3 in) |
| 1979 | 35.8 mm (1.4 in) |
| 1980 | 66.6 mm (2.6 in) |
| 1981 | 57.0 mm (2.2 in) |
| 1982 | 52.5 mm (2.1 in) |
| 1983 | 47.6 mm (1.9 in) |
| 1984 | 48.2 mm (1.9 in) |
| 1985 | 42.7 mm (1.7 in) |
| 1986 | 40.0 mm (1.6 in) |
| 1987 | 28.2 mm (1.1 in) |
| 1988 | 28.2 mm (1.1 in) |
| 1989 | 55.4 mm (2.2 in) |
| 1990 | 38.2 mm (1.5 in) |
| 1991 | 43.7 mm (1.7 in) |
| 1992 | 43.5 mm (1.7 in) |
| 1993 | 23.8 mm (0.9 in) |
| 1994 | 31.4 mm (1.2 in) |
| 1995 | 41.3 mm (1.6 in) |
| 1996 | 56.7 mm (2.2 in) |
| 1997 | 41.3 mm (1.6 in) |
| 1998 | 69.1 mm (2.7 in) |
| 1999 | 43.0 mm (1.7 in) |
| 2000 | 42.6 mm (1.7 in) |
| 2001 | 28.8 mm (1.1 in) |
| 2002 | 84.5 mm (3.3 in) |
| 2003 | 35.2 mm (1.4 in) |
| 2004 | 0.0 mm (0.00 in) |
| 2005 | 0.0 mm (0.00 in) |
| 2006 | n/a |
| 2007 | n/a |
| 2008 | n/a |
| 2009 | n/a |
| 2010 | n/a |
| 2011 | n/a |
| 2012 | n/a |
| 2013 | n/a |
| 2014 | 0.0 mm (0.00 in) |
| 2015 | n/a |
| 2016 | n/a |
| 2017 | n/a |
| 2018 | n/a |
| 2019 | n/a |
| 2020 | n/a |
| 2021 | n/a |
| 2022 | n/a |
| 2023 | n/a |
| 2024 | n/a |
| 2025 | n/a |
| 2026 | n/a |
Wettest five days (Rx5day)
| Year | Wettest five days (Rx5day) |
|---|---|
| 1953 | n/a |
| 1954 | 78.6 mm (3.1 in) |
| 1955 | 82.6 mm (3.3 in) |
| 1956 | 72.1 mm (2.8 in) |
| 1957 | 72.5 mm (2.9 in) |
| 1958 | 84.5 mm (3.3 in) |
| 1959 | 54.7 mm (2.2 in) |
| 1960 | 65.4 mm (2.6 in) |
| 1961 | 102.1 mm (4.0 in) |
| 1962 | 86.7 mm (3.4 in) |
| 1963 | 106.5 mm (4.2 in) |
| 1964 | 78.8 mm (3.1 in) |
| 1965 | 65.8 mm (2.6 in) |
| 1966 | 74.7 mm (2.9 in) |
| 1967 | 93.7 mm (3.7 in) |
| 1968 | 79.0 mm (3.1 in) |
| 1969 | 83.8 mm (3.3 in) |
| 1970 | 63.0 mm (2.5 in) |
| 1971 | 85.1 mm (3.4 in) |
| 1972 | 79.1 mm (3.1 in) |
| 1973 | 73.9 mm (2.9 in) |
| 1974 | 90.3 mm (3.6 in) |
| 1975 | 99.5 mm (3.9 in) |
| 1976 | 49.6 mm (2.0 in) |
| 1977 | 74.2 mm (2.9 in) |
| 1978 | 65.7 mm (2.6 in) |
| 1979 | 67.9 mm (2.7 in) |
| 1980 | 96.1 mm (3.8 in) |
| 1981 | 107.4 mm (4.2 in) |
| 1982 | 94.7 mm (3.7 in) |
| 1983 | 77.9 mm (3.1 in) |
| 1984 | 82.8 mm (3.3 in) |
| 1985 | 90.3 mm (3.6 in) |
| 1986 | 100.9 mm (4.0 in) |
| 1987 | 76.8 mm (3.0 in) |
| 1988 | 64.6 mm (2.5 in) |
| 1989 | 100.6 mm (4.0 in) |
| 1990 | 86.8 mm (3.4 in) |
| 1991 | 80.8 mm (3.2 in) |
| 1992 | 103.5 mm (4.1 in) |
| 1993 | 56.5 mm (2.2 in) |
| 1994 | 72.8 mm (2.9 in) |
| 1995 | 101.7 mm (4.0 in) |
| 1996 | 111.3 mm (4.4 in) |
| 1997 | 68.8 mm (2.7 in) |
| 1998 | 134.0 mm (5.3 in) |
| 1999 | 82.8 mm (3.3 in) |
| 2000 | 86.1 mm (3.4 in) |
| 2001 | 58.2 mm (2.3 in) |
| 2002 | 107.0 mm (4.2 in) |
| 2003 | 79.4 mm (3.1 in) |
| 2004 | 0.0 mm (0.00 in) |
| 2005 | 0.0 mm (0.00 in) |
| 2006 | n/a |
| 2007 | n/a |
| 2008 | n/a |
| 2009 | n/a |
| 2010 | n/a |
| 2011 | n/a |
| 2012 | n/a |
| 2013 | n/a |
| 2014 | 0.0 mm (0.00 in) |
| 2015 | n/a |
| 2016 | n/a |
| 2017 | n/a |
| 2018 | n/a |
| 2019 | n/a |
| 2020 | n/a |
| 2021 | n/a |
| 2022 | n/a |
| 2023 | n/a |
| 2024 | n/a |
| 2025 | n/a |
| 2026 | n/a |
Longest dry spell (CDD)
| Year | Longest dry spell (CDD) |
|---|---|
| 1953 | n/a |
| 1954 | 16 days |
| 1955 | 22 days |
| 1956 | 15 days |
| 1957 | 13 days |
| 1958 | 32 days |
| 1959 | 22 days |
| 1960 | 22 days |
| 1961 | 14 days |
| 1962 | 16 days |
| 1963 | 19 days |
| 1964 | 26 days |
| 1965 | 21 days |
| 1966 | 17 days |
| 1967 | 10 days |
| 1968 | 45 days |
| 1969 | 36 days |
| 1970 | 22 days |
| 1971 | 13 days |
| 1972 | 19 days |
| 1973 | 14 days |
| 1974 | 23 days |
| 1975 | 15 days |
| 1976 | 23 days |
| 1977 | 19 days |
| 1978 | 16 days |
| 1979 | 14 days |
| 1980 | 27 days |
| 1981 | 17 days |
| 1982 | 33 days |
| 1983 | 13 days |
| 1984 | 28 days |
| 1985 | 18 days |
| 1986 | 33 days |
| 1987 | 17 days |
| 1988 | 22 days |
| 1989 | 12 days |
| 1990 | 20 days |
| 1991 | 18 days |
| 1992 | 30 days |
| 1993 | 18 days |
| 1994 | 19 days |
| 1995 | 11 days |
| 1996 | 27 days |
| 1997 | 16 days |
| 1998 | 12 days |
| 1999 | 19 days |
| 2000 | 14 days |
| 2001 | 15 days |
| 2002 | 18 days |
| 2003 | 30 days |
| 2004 | 246 days |
| 2005 | 29 days |
| 2006 | n/a |
| 2007 | n/a |
| 2008 | n/a |
| 2009 | n/a |
| 2010 | n/a |
| 2011 | n/a |
| 2012 | n/a |
| 2013 | n/a |
| 2014 | 100 days |
| 2015 | n/a |
| 2016 | n/a |
| 2017 | n/a |
| 2018 | n/a |
| 2019 | n/a |
| 2020 | n/a |
| 2021 | n/a |
| 2022 | n/a |
| 2023 | n/a |
| 2024 | n/a |
| 2025 | n/a |
| 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
60 years with a frostAcross 60 years with a frost, the median last spring frost at Slatteroy Fyr falls on 29 March and the median first autumn frost on 28 November, which leaves a median of 244 days between them.
In 1985 to 2025 the median growing season was 252 days. That is 9 days more than in 1955 to 1984.
Fitted over all years, the growing season changes by +3.2 days per decade at this station.
| Measure | Median, all years | Earliest period (1955 to 1984) | Recent period (1985 to 2025) | Recent against earliest | Fitted trend |
|---|---|---|---|---|---|
| Last spring frost | 29 March | 3 April | 28 March | 6 days earlier | -3.7 days per decade |
| First autumn frost | 28 November | 5 December | 28 November | 7 days earlier | -0.6 days per decade |
| Growing days | 244 days | 243 days | 252 days | 9 days more | +3.2 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
49 years, 1954 to 2002A day with at least 39.0 mm (1.5 in) of rain is expected about once in 2 years. A day with at least 82.3 mm (3.2 in) of rain is expected about once in 100 years.
| Expected about once in | A day with at least | Note |
|---|---|---|
| 2 years | 39.0 mm (1.5 in) | |
| 5 years | 49.0 mm (1.9 in) | |
| 10 years | 56.2 mm (2.2 in) | |
| 25 years | 66.1 mm (2.6 in) | |
| 50 years | 74.0 mm (2.9 in) | Longer than the 49 years of record |
| 100 years | 82.3 mm (3.2 in) | Longer than the 49 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, 49 years of values from 1954 to 2002.
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: 84.5 mm (3.3 in) in 2002; 69.1 mm (2.7 in) in 1998; 66.6 mm (2.6 in) in 1980.
Station Changes
2 suspected2 changes were suspected in the annual mean temperature of Slatteroy Fyr, at 1960 and 2016. Each is measured against neighbouring stations.
- Relative to 5 neighbouring stations, the station's annual mean temperature from 1960 ran 0.1 C (0.3 F) lower than in the years before (possible change).
- Relative to 5 neighbouring stations, the station's annual mean temperature from 2016 ran 0.1 C (0.2 F) lower than in the years before (likely change).
| Year | Shift (C) | Shift (F) | Strength | Neighbours |
|---|---|---|---|---|
| 1960 | -0.1 | -0.3 | possible | 5 |
| 2016 | -0.1 | -0.2 | 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.
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 2026-10-17 (17 October 2026). Records are computed by this site and are not official.
Data as of . Last revised (2026-10-17).