Malham Tarn Weather Records (UKE00105902)
Record envelope, standing records and threshold days for Malham Tarn (UKE00105902), United Kingdom, with 68 years of record.
Key Facts for Malham Tarn
- Malham Tarn (UKE00105902) is a weather station in United Kingdom at 54.10 latitude and -2.16 longitude, 381 m (1,250 ft) above sea level.
- The station reports from 1959 to 2026, 68 years of record.
- 1,464 records set at Malham Tarn still stand.
- Records are tracked for tmax, tmin, prcp: an element needs 30 years of data to be eligible.
- Malham Tarn set a daily record high minimum temperature of 13.6 C (56.5 F) on 28 August 2026 (provisional).
Provisional Records
Records set in the last 60 days are provisional until they clear the revision window.
About the Station
- Location: United Kingdom, 54.10 latitude, -2.16 longitude.
- Elevation: 381 m (1,250 ft).
- Period of record: 1959 to 2026, 68 years.
- Eligible elements: tmax, tmin, prcp.
Daily Record Envelope and 2026
15 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) | -11.5 C (11.3 F) | 7.3 C (45.1 F) | -6.8 C (19.8 F) |
| Feb | 16.4 C (61.5 F) | -13.0 C (8.6 F) | 10.9 C (51.6 F) | -4.9 C (23.2 F) |
| Mar | 19.1 C (66.4 F) | -13.5 C (7.7 F) | 15.1 C (59.2 F) | -2.9 C (26.8 F) |
| Apr | 21.0 C (69.8 F) | -7.5 C (18.5 F) | 19.1 C (66.4 F) | -0.5 C (31.1 F) |
| May | 26.7 C (80.1 F) | -4.2 C (24.4 F) | 26.7 C (80.1 F) | 0.6 C (33.1 F) |
| Jun | 28.7 C (83.7 F) | -1.1 C (30.0 F) | 28.7 C (83.7 F) | 5.5 C (41.9 F) |
| Jul | 32.1 C (89.8 F) | 1.7 C (35.1 F) | 28.3 C (82.9 F) | 7.4 C (45.3 F) |
| Aug | 29.4 C (84.9 F) | 2.1 C (35.8 F) | 29.4 C (84.9 F) | 6.0 C (42.8 F) |
| Sep | 24.4 C (75.9 F) | -1.0 C (30.2 F) | n/a | n/a |
| Oct | 20.1 C (68.2 F) | -4.9 C (23.2 F) | n/a | n/a |
| Nov | 15.8 C (60.4 F) | -9.2 C (15.4 F) | n/a | n/a |
| Dec | 12.9 C (55.2 F) | -17.1 C (1.2 F) | n/a | n/a |
Which Years Hold Standing Records
1,464 standing records| Year set | Standing records |
|---|---|
| 1960 | 18 |
| 1961 | 27 |
| 1962 | 33 |
| 1963 | 37 |
| 1964 | 23 |
| 1965 | 36 |
| 1966 | 27 |
| 1967 | 22 |
| 1968 | 24 |
| 1969 | 26 |
| 1970 | 21 |
| 1971 | 19 |
| 1972 | 16 |
| 1973 | 23 |
| 1974 | 21 |
| 1975 | 27 |
| 1976 | 37 |
| 1977 | 15 |
| 1978 | 23 |
| 1979 | 38 |
| 1980 | 23 |
| 1981 | 31 |
| 1982 | 21 |
| 1983 | 20 |
| 1984 | 7 |
| 1985 | 34 |
| 1986 | 42 |
| 1987 | 38 |
| 1988 | 7 |
| 1989 | 20 |
| 1990 | 29 |
| 1991 | 17 |
| 1992 | 23 |
| 1993 | 26 |
| 1994 | 16 |
| 1995 | 29 |
| 1996 | 12 |
| 1997 | 23 |
| 1998 | 31 |
| 1999 | 12 |
| 2000 | 23 |
| 2001 | 14 |
| 2002 | 10 |
| 2003 | 31 |
| 2004 | 13 |
| 2005 | 26 |
| 2006 | 28 |
| 2007 | 23 |
| 2008 | 32 |
| 2009 | 14 |
| 2010 | 33 |
| 2011 | 30 |
| 2012 | 18 |
| 2013 | 23 |
| 2014 | 17 |
| 2015 | 24 |
| 2016 | 21 |
| 2017 | 16 |
| 2018 | 20 |
| 2019 | 24 |
| 2020 | 8 |
| 2021 | 1 |
| 2022 | 7 |
| 2025 | 10 |
| 2026 | 24 |
All-Time Record Progression
9 new records| Date | Kind | Detail |
|---|---|---|
| 1990-08-02 | Record high maximum temperature | Record high maximum temperature 28.2 C (82.8 F) |
| 1991-12-21 | Record daily precipitation | Record daily precipitation 83.5 mm (3.3 in) |
| 2001-03-05 | Record low minimum temperature | Record low minimum temperature -13.5 C (7.7 F) |
| 2003-08-10 | Record high minimum temperature | Record high minimum temperature 17.1 C (62.8 F) |
| 2010-12-21 | Record low minimum temperature | Record low minimum temperature -17.1 C (1.2 F) |
| 2019-07-24 | Record high maximum temperature | Record high maximum temperature 28.6 C (83.5 F) |
| 2019-07-30 | Record daily precipitation | Record daily precipitation 91.1 mm (3.6 in) |
| 2022-07-18 | Record high maximum temperature | Record high maximum temperature 32.1 C (89.8 F) |
| 2026-06-26 | Record high minimum temperature | Record high minimum temperature 17.6 C (63.7 F) |
Wettest Day of Each Month
Jul: 91.1 mm (3.6 in)| Month | Record daily precipitation (mm) | Date |
|---|---|---|
| Jan | 49.1 mm (1.9 in) | 5 January 1992 |
| Feb | 50.4 mm (2.0 in) | 10 February 2002 |
| Mar | 52.6 mm (2.1 in) | 21 March 1981 |
| Apr | 45.0 mm (1.8 in) | 18 April 1991 |
| May | 52.4 mm (2.1 in) | 13 May 1993 |
| Jun | 67.6 mm (2.7 in) | 3 June 2000 |
| Jul | 91.1 mm (3.6 in) | 30 July 2019 |
| Aug | 78.6 mm (3.1 in) | 10 August 2011 |
| Sep | 72.0 mm (2.8 in) | 24 September 2012 |
| Oct | 55.8 mm (2.2 in) | 30 October 2000 |
| Nov | 65.2 mm (2.6 in) | 1 November 2020 |
| Dec | 83.5 mm (3.3 in) | 21 December 1991 |
Period of Record Coverage
1959 to 2026| Year | Days with data | Share of year | Complete |
|---|---|---|---|
| 1959 | 1 | 0% | No |
| 1960 | 358 | 98% | Yes |
| 1961 | 356 | 98% | Yes |
| 1962 | 357 | 98% | Yes |
| 1963 | 359 | 98% | Yes |
| 1964 | 354 | 97% | Yes |
| 1965 | 359 | 98% | Yes |
| 1966 | 353 | 97% | Yes |
| 1967 | 357 | 98% | Yes |
| 1968 | 354 | 97% | Yes |
| 1969 | 357 | 98% | Yes |
| 1970 | 360 | 99% | Yes |
| 1971 | 323 | 88% | No |
| 1972 | 342 | 93% | Yes |
| 1973 | 353 | 97% | Yes |
| 1974 | 307 | 84% | No |
| 1975 | 349 | 96% | Yes |
| 1976 | 362 | 99% | Yes |
| 1977 | 357 | 98% | Yes |
| 1978 | 355 | 97% | Yes |
| 1979 | 354 | 97% | Yes |
| 1980 | 348 | 95% | Yes |
| 1981 | 359 | 98% | Yes |
| 1982 | 354 | 97% | Yes |
| 1983 | 359 | 98% | Yes |
| 1984 | 357 | 98% | Yes |
| 1985 | 351 | 96% | Yes |
| 1986 | 363 | 99% | Yes |
| 1987 | 355 | 97% | Yes |
| 1988 | 364 | 99% | Yes |
| 1989 | 356 | 98% | Yes |
| 1990 | 358 | 98% | Yes |
| 1991 | 361 | 99% | Yes |
| 1992 | 350 | 96% | Yes |
| 1993 | 358 | 98% | Yes |
| 1994 | 342 | 94% | Yes |
| 1995 | 357 | 98% | Yes |
| 1996 | 360 | 98% | Yes |
| 1997 | 348 | 95% | Yes |
| 1998 | 355 | 97% | Yes |
| 1999 | 354 | 97% | Yes |
| 2000 | 353 | 96% | Yes |
| 2001 | 359 | 98% | Yes |
| 2002 | 355 | 97% | Yes |
| 2003 | 360 | 99% | Yes |
| 2004 | 336 | 92% | Yes |
| 2005 | 346 | 95% | Yes |
| 2006 | 362 | 99% | Yes |
| 2007 | 362 | 99% | Yes |
| 2008 | 361 | 99% | Yes |
| 2009 | 360 | 99% | Yes |
| 2010 | 359 | 98% | Yes |
| 2011 | 362 | 99% | Yes |
| 2012 | 361 | 99% | Yes |
| 2013 | 360 | 99% | Yes |
| 2014 | 358 | 98% | Yes |
| 2015 | 361 | 99% | Yes |
| 2016 | 214 | 58% | No |
| 2017 | 40 | 11% | No |
| 2018 | 325 | 89% | No |
| 2019 | 334 | 92% | Yes |
| 2020 | 178 | 49% | No |
| 2021 | 27 | 7% | No |
| 2022 | 150 | 41% | No |
| 2025 | 131 | 36% | No |
| 2026 | 227 | 62% | No |
Latest Records
20| Date | Station | Record | Value | Beat old record by | Old record stood | Significance |
|---|---|---|---|---|---|---|
| 28 August 2026 | Malham Tarn, GB | daily high min (Provisional) | 13.6 C (56.5 F) | 0.6 C (1.1 F) | 17 years | 13 of 100 (Routine) |
| 26 August 2026 | Malham Tarn, GB | daily high min (Tie, Provisional) | 13.4 C (56.1 F) | tie | 36 years | 4 of 100 (Routine) |
| 12 August 2026 | Malham Tarn, GB | monthly high max | 29.4 C (84.9 F) | 1.2 C (2.2 F) | 36 years | 30 of 100 (Routine) |
| 11 August 2026 | Malham Tarn, GB | daily high max | 26.9 C (80.4 F) | 1.3 C (2.3 F) | 56 years | 27 of 100 (Routine) |
| 25 July 2026 | Malham Tarn, GB | daily rain | 16.2 mm (0.6 in) | 0.8 mm (0.03 in) | 48 years | 20 of 100 (Routine) |
| 11 July 2026 | Malham Tarn, GB | daily high min | 15.6 C (60.1 F) | 0.1 C (0.2 F) | 20 years | 12 of 100 (Routine) |
| 9 July 2026 | Malham Tarn, GB | daily high max | 28.3 C (82.9 F) | 4.6 C (8.3 F) | 20 years | 26 of 100 (Routine) |
| 26 June 2026 | Malham Tarn, GB | all-time high min | 17.6 C (63.7 F) | 0.5 C (0.9 F) | 22 years | 33 of 100 (Routine) |
| 25 June 2026 | Malham Tarn, GB | monthly high max | 28.7 C (83.7 F) | 1.5 C (2.7 F) | 49 years | 34 of 100 (Routine) |
| 25 June 2026 | Malham Tarn, GB | daily high min | 15.5 C (59.9 F) | 1.6 C (2.9 F) | 65 years | 31 of 100 (Routine) |
| 24 June 2026 | Malham Tarn, GB | daily high min | 15.2 C (59.4 F) | 2.5 C (4.5 F) | 49 years | 29 of 100 (Routine) |
| 24 June 2026 | Malham Tarn, GB | daily high max | 25.9 C (78.6 F) | 0.5 C (0.9 F) | 8 years | 9 of 100 (Routine) |
| 23 June 2026 | Malham Tarn, GB | daily high min | 13.8 C (56.8 F) | 0.1 C (0.2 F) | 49 years | 20 of 100 (Routine) |
| 23 June 2026 | Malham Tarn, GB | daily high max | 24.9 C (76.8 F) | 1.4 C (2.5 F) | 16 years | 15 of 100 (Routine) |
| 22 June 2026 | Malham Tarn, GB | daily high max | 25.7 C (78.3 F) | 2.7 C (4.9 F) | 51 years | 29 of 100 (Routine) |
| 21 June 2026 | Malham Tarn, GB | daily high max (Tie) | 22.2 C (72.0 F) | tie | 65 years | 6 of 100 (Routine) |
| 20 June 2026 | Malham Tarn, GB | daily high max | 21.5 C (70.7 F) | 0.4 C (0.7 F) | 65 years | 26 of 100 (Routine) |
| 29 May 2026 | Malham Tarn, GB | daily high min | 11.8 C (53.2 F) | 0.3 C (0.5 F) | 33 years | 17 of 100 (Routine) |
| 26 May 2026 | Malham Tarn, GB | monthly high min | 14.4 C (57.9 F) | 0.1 C (0.2 F) | 14 years | 20 of 100 (Routine) |
| 25 May 2026 | Malham Tarn, GB | daily high max | 26.6 C (79.9 F) | 5.9 C (10.6 F) | 13 years | 27 of 100 (Routine) |
Climate Trend
50 complete years, 1960 to 2018| Year | Annual mean temperature | Difference from the station mean |
|---|---|---|
| 1960 | 7.1 C | -0.07 C |
| 1961 | 7.2 C | +0.02 C |
| 1962 | 6.0 C | -1.16 C |
| 1963 | 5.9 C | -1.25 C |
| 1964 | 6.7 C | -0.47 C |
| 1965 | 6.3 C | -0.86 C |
| 1966 | 6.5 C | -0.69 C |
| 1967 | 6.5 C | -0.60 C |
| 1968 | 6.7 C | -0.42 C |
| 1969 | 6.5 C | -0.67 C |
| 1973 | 7.1 C | -0.06 C |
| 1975 | 7.4 C | +0.27 C |
| 1976 | 7.1 C | -0.01 C |
| 1977 | 6.6 C | -0.50 C |
| 1978 | 6.6 C | -0.57 C |
| 1979 | 6.0 C | -1.19 C |
| 1980 | 6.8 C | -0.36 C |
| 1981 | 6.5 C | -0.67 C |
| 1982 | 7.3 C | +0.13 C |
| 1983 | 7.0 C | -0.11 C |
| 1984 | 7.1 C | -0.09 C |
| 1985 | 5.9 C | -1.21 C |
| 1986 | 5.7 C | -1.41 C |
| 1987 | 6.3 C | -0.87 C |
| 1988 | 7.0 C | -0.15 C |
| 1989 | 7.7 C | +0.54 C |
| 1990 | 7.8 C | +0.70 C |
| 1991 | 7.0 C | -0.19 C |
| 1992 | 7.2 C | +0.08 C |
| 1993 | 6.6 C | -0.59 C |
| 1995 | 7.7 C | +0.51 C |
| 1996 | 6.6 C | -0.55 C |
| 1997 | 8.2 C | +1.02 C |
| 1998 | 7.8 C | +0.69 C |
| 1999 | 8.1 C | +0.94 C |
| 2000 | 7.7 C | +0.54 C |
| 2001 | 7.5 C | +0.33 C |
| 2002 | 8.1 C | +0.97 C |
| 2003 | 8.2 C | +1.08 C |
| 2006 | 8.4 C | +1.25 C |
| 2007 | 8.1 C | +1.00 C |
| 2008 | 7.7 C | +0.53 C |
| 2009 | 7.6 C | +0.48 C |
| 2010 | 6.9 C | -0.25 C |
| 2011 | 8.2 C | +1.05 C |
| 2012 | 7.3 C | +0.19 C |
| 2013 | 7.3 C | +0.13 C |
| 2014 | 8.6 C | +1.48 C |
| 2015 | 7.7 C | +0.54 C |
| 2018 | 7.7 C | +0.60 C |
The annual mean temperature here has risen by 0.3 C (0.2 to 0.4) per decade over 1960 to 2018. In Fahrenheit: 0.5 F (0.4 to 0.7) per decade. The slope is a straight line fitted to 50 complete years; the brackets give its 95 percent interval.
| Measure | Per decade (C) | Per decade (F) | Period | Complete years | Reading |
|---|---|---|---|---|---|
| Annual mean temperature | 0.3 C (0.2 to 0.4) per decade | 0.5 F (0.4 to 0.7) per decade | 1960 to 2018 | 50 | Rise |
| Mean daily maximum | 0.3 C (0.2 to 0.4) per decade | 0.6 F (0.4 to 0.8) per decade | 1960 to 2018 | 50 | Rise |
| Mean daily minimum | 0.3 C (0.2 to 0.3) per decade | 0.5 F (0.3 to 0.6) per decade | 1960 to 2018 | 50 | 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
1959 to 2026| Measure | Record | Year of the record | Median year | Years with a value |
|---|---|---|---|---|
| Hottest day (TXx) | 32.1 C (89.8 F) | 2022 | 24.0 C (75.2 F) | 66 |
| Coldest night (TNn) | -17.1 C (1.2 F) | 2010 | -7.8 C (18.0 F) | 65 |
| Wettest day (Rx1day) | 91.1 mm (3.6 in) | 2019 | 45.6 mm (1.8 in) | 66 |
| Wettest five days (Rx5day) | 175.0 mm (6.9 in) | 1991 | 100.0 mm (3.9 in) | 66 |
| Longest dry spell (CDD) | 48 days | 1980 | 17 days | 66 |
Hottest day (TXx)
| Year | Hottest day (TXx) |
|---|---|
| 1959 | 7.2 C (45.0 F) |
| 1960 | 22.8 C (73.0 F) |
| 1961 | 24.4 C (75.9 F) |
| 1962 | 21.7 C (71.1 F) |
| 1963 | 22.8 C (73.0 F) |
| 1964 | 21.1 C (70.0 F) |
| 1965 | 22.8 C (73.0 F) |
| 1966 | 22.2 C (72.0 F) |
| 1967 | 22.2 C (72.0 F) |
| 1968 | 23.3 C (73.9 F) |
| 1969 | 25.6 C (78.1 F) |
| 1970 | 25.6 C (78.1 F) |
| 1971 | 25.5 C (77.9 F) |
| 1972 | 24.2 C (75.6 F) |
| 1973 | 24.2 C (75.6 F) |
| 1974 | 20.2 C (68.4 F) |
| 1975 | 27.1 C (80.8 F) |
| 1976 | 27.2 C (81.0 F) |
| 1977 | 24.0 C (75.2 F) |
| 1978 | 23.7 C (74.7 F) |
| 1979 | 23.2 C (73.8 F) |
| 1980 | 23.1 C (73.6 F) |
| 1981 | 22.3 C (72.1 F) |
| 1982 | 24.5 C (76.1 F) |
| 1983 | 28.0 C (82.4 F) |
| 1984 | 24.2 C (75.6 F) |
| 1985 | 21.6 C (70.9 F) |
| 1986 | 22.9 C (73.2 F) |
| 1987 | 23.5 C (74.3 F) |
| 1988 | 23.4 C (74.1 F) |
| 1989 | 24.8 C (76.6 F) |
| 1990 | 28.2 C (82.8 F) |
| 1991 | 23.4 C (74.1 F) |
| 1992 | 23.8 C (74.8 F) |
| 1993 | 21.4 C (70.5 F) |
| 1994 | 22.6 C (72.7 F) |
| 1995 | 27.5 C (81.5 F) |
| 1996 | 24.7 C (76.5 F) |
| 1997 | 25.2 C (77.4 F) |
| 1998 | 22.0 C (71.6 F) |
| 1999 | 24.8 C (76.6 F) |
| 2000 | 25.6 C (78.1 F) |
| 2001 | 23.9 C (75.0 F) |
| 2002 | 23.2 C (73.8 F) |
| 2003 | 27.4 C (81.3 F) |
| 2004 | 24.3 C (75.7 F) |
| 2005 | 27.3 C (81.1 F) |
| 2006 | 27.0 C (80.6 F) |
| 2007 | 22.3 C (72.1 F) |
| 2008 | 22.7 C (72.9 F) |
| 2009 | 25.3 C (77.5 F) |
| 2010 | 23.3 C (73.9 F) |
| 2011 | 24.3 C (75.7 F) |
| 2012 | 24.0 C (75.2 F) |
| 2013 | 25.8 C (78.4 F) |
| 2014 | 24.0 C (75.2 F) |
| 2015 | 26.5 C (79.7 F) |
| 2016 | 26.3 C (79.3 F) |
| 2017 | 10.7 C (51.3 F) |
| 2018 | 26.0 C (78.8 F) |
| 2019 | 28.6 C (83.5 F) |
| 2020 | 26.9 C (80.4 F) |
| 2021 | 13.0 C (55.4 F) |
| 2022 | 32.1 C (89.8 F) |
| 2023 | n/a |
| 2024 | n/a |
| 2025 | 23.2 C (73.8 F) |
| 2026 | 29.4 C (84.9 F) |
Coldest night (TNn)
| Year | Coldest night (TNn) |
|---|---|
| 1959 | n/a |
| 1960 | -7.2 C (19.0 F) |
| 1961 | -8.3 C (17.1 F) |
| 1962 | -8.9 C (16.0 F) |
| 1963 | -9.4 C (15.1 F) |
| 1964 | -8.9 C (16.0 F) |
| 1965 | -11.1 C (12.0 F) |
| 1966 | -7.8 C (18.0 F) |
| 1967 | -8.3 C (17.1 F) |
| 1968 | -7.2 C (19.0 F) |
| 1969 | -11.1 C (12.0 F) |
| 1970 | -8.9 C (16.0 F) |
| 1971 | -7.3 C (18.9 F) |
| 1972 | -9.6 C (14.7 F) |
| 1973 | -9.1 C (15.6 F) |
| 1974 | -4.8 C (23.4 F) |
| 1975 | -6.1 C (21.0 F) |
| 1976 | -6.8 C (19.8 F) |
| 1977 | -7.4 C (18.7 F) |
| 1978 | -9.2 C (15.4 F) |
| 1979 | -10.0 C (14.0 F) |
| 1980 | -8.2 C (17.2 F) |
| 1981 | -9.1 C (15.6 F) |
| 1982 | -8.0 C (17.6 F) |
| 1983 | -7.1 C (19.2 F) |
| 1984 | -9.6 C (14.7 F) |
| 1985 | -8.4 C (16.9 F) |
| 1986 | -13.0 C (8.6 F) |
| 1987 | -11.5 C (11.3 F) |
| 1988 | -6.4 C (20.5 F) |
| 1989 | -5.5 C (22.1 F) |
| 1990 | -5.2 C (22.6 F) |
| 1991 | -8.1 C (17.4 F) |
| 1992 | -8.7 C (16.3 F) |
| 1993 | -9.2 C (15.4 F) |
| 1994 | -8.0 C (17.6 F) |
| 1995 | -9.7 C (14.5 F) |
| 1996 | -7.8 C (18.0 F) |
| 1997 | -5.1 C (22.8 F) |
| 1998 | -5.0 C (23.0 F) |
| 1999 | -12.6 C (9.3 F) |
| 2000 | -7.9 C (17.8 F) |
| 2001 | -13.5 C (7.7 F) |
| 2002 | -7.0 C (19.4 F) |
| 2003 | -5.7 C (21.7 F) |
| 2004 | -6.0 C (21.2 F) |
| 2005 | -7.5 C (18.5 F) |
| 2006 | -7.4 C (18.7 F) |
| 2007 | -5.7 C (21.7 F) |
| 2008 | -7.2 C (19.0 F) |
| 2009 | -8.9 C (16.0 F) |
| 2010 | -17.1 C (1.2 F) |
| 2011 | -7.1 C (19.2 F) |
| 2012 | -7.8 C (18.0 F) |
| 2013 | -7.2 C (19.0 F) |
| 2014 | -5.3 C (22.5 F) |
| 2015 | -5.2 C (22.6 F) |
| 2016 | -5.0 C (23.0 F) |
| 2017 | -5.6 C (21.9 F) |
| 2018 | -7.6 C (18.3 F) |
| 2019 | -10.5 C (13.1 F) |
| 2020 | -3.1 C (26.4 F) |
| 2021 | 0.5 C (32.9 F) |
| 2022 | -3.5 C (25.7 F) |
| 2023 | n/a |
| 2024 | n/a |
| 2025 | -4.3 C (24.3 F) |
| 2026 | -6.8 C (19.8 F) |
Wettest day (Rx1day)
| Year | Wettest day (Rx1day) |
|---|---|
| 1959 | n/a |
| 1960 | n/a |
| 1961 | 49.3 mm (1.9 in) |
| 1962 | 45.7 mm (1.8 in) |
| 1963 | 35.1 mm (1.4 in) |
| 1964 | 39.4 mm (1.6 in) |
| 1965 | 38.1 mm (1.5 in) |
| 1966 | 49.5 mm (1.9 in) |
| 1967 | 48.3 mm (1.9 in) |
| 1968 | 46.7 mm (1.8 in) |
| 1969 | 45.6 mm (1.8 in) |
| 1970 | 40.3 mm (1.6 in) |
| 1971 | 43.0 mm (1.7 in) |
| 1972 | 47.3 mm (1.9 in) |
| 1973 | 40.1 mm (1.6 in) |
| 1974 | 40.0 mm (1.6 in) |
| 1975 | 62.0 mm (2.4 in) |
| 1976 | 34.2 mm (1.3 in) |
| 1977 | 35.9 mm (1.4 in) |
| 1978 | 41.1 mm (1.6 in) |
| 1979 | 46.8 mm (1.8 in) |
| 1980 | 52.7 mm (2.1 in) |
| 1981 | 52.6 mm (2.1 in) |
| 1982 | 46.2 mm (1.8 in) |
| 1983 | 50.4 mm (2.0 in) |
| 1984 | 50.1 mm (2.0 in) |
| 1985 | 45.1 mm (1.8 in) |
| 1986 | 42.0 mm (1.7 in) |
| 1987 | 40.9 mm (1.6 in) |
| 1988 | 49.2 mm (1.9 in) |
| 1989 | 36.2 mm (1.4 in) |
| 1990 | 43.7 mm (1.7 in) |
| 1991 | 83.5 mm (3.3 in) |
| 1992 | 49.1 mm (1.9 in) |
| 1993 | 52.4 mm (2.1 in) |
| 1994 | 56.4 mm (2.2 in) |
| 1995 | 43.2 mm (1.7 in) |
| 1996 | 32.0 mm (1.3 in) |
| 1997 | 45.5 mm (1.8 in) |
| 1998 | 38.2 mm (1.5 in) |
| 1999 | 45.6 mm (1.8 in) |
| 2000 | 67.6 mm (2.7 in) |
| 2001 | 57.7 mm (2.3 in) |
| 2002 | 54.7 mm (2.2 in) |
| 2003 | 39.5 mm (1.6 in) |
| 2004 | 64.8 mm (2.6 in) |
| 2005 | 48.7 mm (1.9 in) |
| 2006 | 42.1 mm (1.7 in) |
| 2007 | 36.3 mm (1.4 in) |
| 2008 | 46.8 mm (1.8 in) |
| 2009 | 33.6 mm (1.3 in) |
| 2010 | 37.4 mm (1.5 in) |
| 2011 | 78.6 mm (3.1 in) |
| 2012 | 72.0 mm (2.8 in) |
| 2013 | 44.1 mm (1.7 in) |
| 2014 | 42.3 mm (1.7 in) |
| 2015 | 61.0 mm (2.4 in) |
| 2016 | 38.2 mm (1.5 in) |
| 2017 | 38.5 mm (1.5 in) |
| 2018 | 36.1 mm (1.4 in) |
| 2019 | 91.1 mm (3.6 in) |
| 2020 | 65.2 mm (2.6 in) |
| 2021 | 58.0 mm (2.3 in) |
| 2022 | 28.5 mm (1.1 in) |
| 2023 | 40.4 mm (1.6 in) |
| 2024 | 63.6 mm (2.5 in) |
| 2025 | 43.8 mm (1.7 in) |
| 2026 | 37.6 mm (1.5 in) |
Wettest five days (Rx5day)
| Year | Wettest five days (Rx5day) |
|---|---|
| 1959 | n/a |
| 1960 | n/a |
| 1961 | 79.8 mm (3.1 in) |
| 1962 | 82.8 mm (3.3 in) |
| 1963 | 102.1 mm (4.0 in) |
| 1964 | 105.2 mm (4.1 in) |
| 1965 | 89.8 mm (3.5 in) |
| 1966 | 109.8 mm (4.3 in) |
| 1967 | 99.5 mm (3.9 in) |
| 1968 | 128.1 mm (5.0 in) |
| 1969 | 79.6 mm (3.1 in) |
| 1970 | 80.8 mm (3.2 in) |
| 1971 | 94.6 mm (3.7 in) |
| 1972 | 116.6 mm (4.6 in) |
| 1973 | 79.7 mm (3.1 in) |
| 1974 | 113.3 mm (4.5 in) |
| 1975 | 82.2 mm (3.2 in) |
| 1976 | 87.1 mm (3.4 in) |
| 1977 | 75.8 mm (3.0 in) |
| 1978 | 79.9 mm (3.1 in) |
| 1979 | 93.8 mm (3.7 in) |
| 1980 | 120.2 mm (4.7 in) |
| 1981 | 135.0 mm (5.3 in) |
| 1982 | 94.0 mm (3.7 in) |
| 1983 | 93.2 mm (3.7 in) |
| 1984 | 109.6 mm (4.3 in) |
| 1985 | 101.1 mm (4.0 in) |
| 1986 | 100.4 mm (4.0 in) |
| 1987 | 94.3 mm (3.7 in) |
| 1988 | 103.9 mm (4.1 in) |
| 1989 | 84.9 mm (3.3 in) |
| 1990 | 100.9 mm (4.0 in) |
| 1991 | 175.0 mm (6.9 in) |
| 1992 | 99.1 mm (3.9 in) |
| 1993 | 106.3 mm (4.2 in) |
| 1994 | 93.0 mm (3.7 in) |
| 1995 | 106.9 mm (4.2 in) |
| 1996 | 82.0 mm (3.2 in) |
| 1997 | 86.3 mm (3.4 in) |
| 1998 | 110.4 mm (4.3 in) |
| 1999 | 117.9 mm (4.6 in) |
| 2000 | 170.5 mm (6.7 in) |
| 2001 | 94.9 mm (3.7 in) |
| 2002 | 113.1 mm (4.5 in) |
| 2003 | 73.5 mm (2.9 in) |
| 2004 | 116.4 mm (4.6 in) |
| 2005 | 80.5 mm (3.2 in) |
| 2006 | 105.4 mm (4.1 in) |
| 2007 | 105.9 mm (4.2 in) |
| 2008 | 101.6 mm (4.0 in) |
| 2009 | 105.2 mm (4.1 in) |
| 2010 | 96.1 mm (3.8 in) |
| 2011 | 113.0 mm (4.4 in) |
| 2012 | 115.6 mm (4.6 in) |
| 2013 | 84.3 mm (3.3 in) |
| 2014 | 76.1 mm (3.0 in) |
| 2015 | 129.3 mm (5.1 in) |
| 2016 | 98.5 mm (3.9 in) |
| 2017 | 96.2 mm (3.8 in) |
| 2018 | 76.3 mm (3.0 in) |
| 2019 | 124.1 mm (4.9 in) |
| 2020 | 123.4 mm (4.9 in) |
| 2021 | 98.0 mm (3.9 in) |
| 2022 | 87.0 mm (3.4 in) |
| 2023 | 117.4 mm (4.6 in) |
| 2024 | 113.0 mm (4.4 in) |
| 2025 | 120.6 mm (4.7 in) |
| 2026 | 61.8 mm (2.4 in) |
Longest dry spell (CDD)
| Year | Longest dry spell (CDD) |
|---|---|
| 1959 | n/a |
| 1960 | n/a |
| 1961 | 19 days |
| 1962 | 14 days |
| 1963 | 15 days |
| 1964 | 17 days |
| 1965 | 14 days |
| 1966 | 15 days |
| 1967 | 12 days |
| 1968 | 29 days |
| 1969 | 16 days |
| 1970 | 10 days |
| 1971 | 23 days |
| 1972 | 25 days |
| 1973 | 17 days |
| 1974 | 17 days |
| 1975 | 19 days |
| 1976 | 24 days |
| 1977 | 19 days |
| 1978 | 20 days |
| 1979 | 8 days |
| 1980 | 48 days |
| 1981 | 18 days |
| 1982 | 18 days |
| 1983 | 15 days |
| 1984 | 23 days |
| 1985 | 19 days |
| 1986 | 18 days |
| 1987 | 15 days |
| 1988 | 16 days |
| 1989 | 24 days |
| 1990 | 12 days |
| 1991 | 21 days |
| 1992 | 20 days |
| 1993 | 12 days |
| 1994 | 17 days |
| 1995 | 20 days |
| 1996 | 13 days |
| 1997 | 18 days |
| 1998 | 13 days |
| 1999 | 11 days |
| 2000 | 16 days |
| 2001 | 13 days |
| 2002 | 15 days |
| 2003 | 19 days |
| 2004 | 15 days |
| 2005 | 15 days |
| 2006 | 14 days |
| 2007 | 20 days |
| 2008 | 22 days |
| 2009 | 15 days |
| 2010 | 17 days |
| 2011 | 23 days |
| 2012 | 16 days |
| 2013 | 19 days |
| 2014 | 17 days |
| 2015 | 13 days |
| 2016 | 14 days |
| 2017 | 18 days |
| 2018 | 23 days |
| 2019 | 19 days |
| 2020 | 17 days |
| 2021 | 18 days |
| 2022 | 13 days |
| 2023 | 23 days |
| 2024 | 11 days |
| 2025 | 31 days |
| 2026 | 20 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
50 years with a frostAcross 50 years with a frost, the median last spring frost at Malham Tarn falls on 1 May and the median first autumn frost on 24 October, which leaves a median of 176 days between them.
Fitted over all years, the growing season changes by +5.4 days per decade at this station.
| Measure | Median, all years | Earliest period | Recent period (1984 to 2018) | Recent against earliest | Fitted trend |
|---|---|---|---|---|---|
| Last spring frost | 1 May | n/a | 24 April | n/a | -5.2 days per decade |
| First autumn frost | 24 October | n/a | 23 October | n/a | +0.2 days per decade |
| Growing days | 176 days | n/a | 181 days | n/a | +5.4 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
62 years, 1961 to 2025A day with at least 44.9 mm (1.8 in) of rain is expected about once in 2 years. A day with at least 94.1 mm (3.7 in) of rain is expected about once in 100 years.
| Expected about once in | A day with at least | Note |
|---|---|---|
| 2 years | 44.9 mm (1.8 in) | |
| 5 years | 55.3 mm (2.2 in) | |
| 10 years | 63.1 mm (2.5 in) | |
| 25 years | 74.4 mm (2.9 in) | |
| 50 years | 83.8 mm (3.3 in) | |
| 100 years | 94.1 mm (3.7 in) | Longer than the 62 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, 62 years of values from 1961 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: 91.1 mm (3.6 in) in 2019; 83.5 mm (3.3 in) in 1991; 78.6 mm (3.1 in) in 2011.
Station Changes
2 suspected2 changes were suspected in the annual mean temperature of Malham Tarn, at 1985 and 1997. Each is measured against neighbouring stations.
- Relative to 5 neighbouring stations, the station's annual mean temperature from 1985 ran 0.2 C (0.3 F) lower than in the years before (possible change).
- Relative to 5 neighbouring stations, the station's annual mean temperature from 1997 ran 0.2 C (0.4 F) higher than in the years before (possible change).
| Year | Shift (C) | Shift (F) | Strength | Neighbours |
|---|---|---|---|---|
| 1985 | -0.2 | -0.3 | possible | 5 |
| 1997 | +0.2 | +0.4 | possible | 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
2000 to 2018 against 1961 to 1990Over 2000 to 2018, Malham Tarn had a mean temperature of 7.8 C (46.0 F) and 1,628.4 mm (64.1 in) of rain a year. The 3 stations whose 1961 to 1990 climate was closest to that are Glenlee (United Kingdom, 171 km away), Lough Navar Forest (United Kingdom, 375 km away) and Alert Bay (Canada, 7,292 km away).
| Twin station | Country | Distance away | Mean temperature, 1961-1990 | Rain a year, 1961-1990 | Climate difference |
|---|---|---|---|---|---|
| Glenlee | United Kingdom | 171 km (106 mi) | 8.1 C (46.6 F) | 1,547.1 mm (60.9 in) | 0.51 |
| Lough Navar Forest | United Kingdom | 375 km (233 mi) | 8.1 C (46.6 F) | 1,468.6 mm (57.8 in) | 0.86 |
| Alert Bay | Canada | 7,292 km (4,531 mi) | 8.4 C (47.2 F) | 1,613.6 mm (63.5 in) | 0.92 |
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 2026-10-14 (14 October 2026). Records are computed by this site and are not official.
Data as of . Last revised (2026-10-14).