Rotterdam Weather Records (NLE00152490)
Record envelope, standing records and threshold days for Rotterdam (NLE00152490), Netherlands, with 71 years of record.
Key Facts for Rotterdam
- Rotterdam (NLE00152490) is a weather station in Netherlands at 51.96 latitude and 4.45 longitude, -4 m (-13 ft) above sea level.
- The station reports from 1956 to 2026, 71 years of record.
- 1,464 records set at Rotterdam still stand.
- Records are tracked for tmax, tmin, prcp: an element needs 30 years of data to be eligible.
- Rotterdam set a monthly record high maximum temperature of 35.3 C (95.5 F) on 14 August 2026.
About the Station
- Location: Netherlands, 51.96 latitude, 4.45 longitude.
- Elevation: -4 m (-13 ft).
- Period of record: 1956 to 2026, 71 years.
- Eligible elements: tmax, tmin, prcp.
Daily Record Envelope and 2026
17 days at or beyond a record| Month | Highest record high | Lowest record low | 2026 highest maximum | 2026 lowest minimum |
|---|---|---|---|---|
| Jan | 14.6 C (58.3 F) | -17.1 C (1.2 F) | 11.9 C (53.4 F) | -4.7 C (23.5 F) |
| Feb | 18.7 C (65.7 F) | -16.5 C (2.3 F) | 18.2 C (64.8 F) | -3.3 C (26.1 F) |
| Mar | 23.8 C (74.8 F) | -13.4 C (7.9 F) | 17.9 C (64.2 F) | 0.0 C (32.0 F) |
| Apr | 27.5 C (81.5 F) | -6.0 C (21.2 F) | 21.9 C (71.4 F) | 1.1 C (34.0 F) |
| May | 31.3 C (88.3 F) | -1.4 C (29.5 F) | 30.8 C (87.4 F) | 2.7 C (36.9 F) |
| Jun | 36.6 C (97.9 F) | 0.5 C (32.9 F) | 36.6 C (97.9 F) | 8.4 C (47.1 F) |
| Jul | 37.2 C (99.0 F) | 3.6 C (38.5 F) | 33.7 C (92.7 F) | 9.7 C (49.5 F) |
| Aug | 35.3 C (95.5 F) | 4.6 C (40.3 F) | 35.3 C (95.5 F) | 8.4 C (47.1 F) |
| Sep | 32.2 C (90.0 F) | 0.4 C (32.7 F) | n/a | n/a |
| Oct | 26.0 C (78.8 F) | -5.1 C (22.8 F) | n/a | n/a |
| Nov | 19.3 C (66.7 F) | -9.0 C (15.8 F) | n/a | n/a |
| Dec | 15.1 C (59.2 F) | -13.3 C (8.1 F) | n/a | n/a |
Which Years Hold Standing Records
1,464 standing records| Year set | Standing records |
|---|---|
| 1956 | 5 |
| 1957 | 25 |
| 1958 | 22 |
| 1959 | 12 |
| 1960 | 14 |
| 1961 | 21 |
| 1962 | 35 |
| 1963 | 42 |
| 1964 | 14 |
| 1965 | 15 |
| 1966 | 14 |
| 1967 | 10 |
| 1968 | 24 |
| 1969 | 23 |
| 1970 | 10 |
| 1971 | 27 |
| 1972 | 14 |
| 1973 | 6 |
| 1974 | 17 |
| 1975 | 16 |
| 1976 | 21 |
| 1977 | 19 |
| 1978 | 24 |
| 1979 | 31 |
| 1980 | 23 |
| 1981 | 27 |
| 1982 | 7 |
| 1983 | 14 |
| 1984 | 14 |
| 1985 | 34 |
| 1986 | 37 |
| 1987 | 32 |
| 1988 | 8 |
| 1989 | 20 |
| 1990 | 29 |
| 1991 | 25 |
| 1992 | 9 |
| 1993 | 30 |
| 1994 | 21 |
| 1995 | 18 |
| 1996 | 22 |
| 1997 | 28 |
| 1998 | 19 |
| 1999 | 8 |
| 2000 | 25 |
| 2001 | 15 |
| 2002 | 16 |
| 2003 | 18 |
| 2004 | 16 |
| 2005 | 30 |
| 2006 | 24 |
| 2007 | 19 |
| 2008 | 11 |
| 2009 | 8 |
| 2010 | 22 |
| 2011 | 23 |
| 2012 | 16 |
| 2013 | 31 |
| 2014 | 21 |
| 2015 | 34 |
| 2016 | 20 |
| 2017 | 11 |
| 2018 | 38 |
| 2019 | 17 |
| 2020 | 24 |
| 2021 | 12 |
| 2022 | 21 |
| 2023 | 22 |
| 2024 | 32 |
| 2025 | 23 |
| 2026 | 29 |
All-Time Record Progression
8 new records| Date | Kind | Detail |
|---|---|---|
| 1987-01-14 | Record low maximum temperature | Record low maximum temperature -9.7 C (14.5 F) |
| 1990-08-04 | Record high maximum temperature | Record high maximum temperature 34.9 C (94.8 F) |
| 2004-08-09 | Record high minimum temperature | Record high minimum temperature 20.9 C (69.6 F) |
| 2010-07-09 | Record high maximum temperature | Record high maximum temperature 35.0 C (95.0 F) |
| 2018-07-26 | Record high maximum temperature | Record high maximum temperature 36.1 C (97.0 F) |
| 2019-07-25 | Record high maximum temperature | Record high maximum temperature 37.2 C (99.0 F) |
| 2026-06-25 | Record high minimum temperature | Record high minimum temperature 21.6 C (70.9 F) |
| 2026-06-26 | Record high minimum temperature | Record high minimum temperature 22.0 C (71.6 F) |
Wettest Day of Each Month
Jun: 101.4 mm (4.0 in)| Month | Record daily precipitation (mm) | Date |
|---|---|---|
| Jan | 35.2 mm (1.4 in) | 12 January 2023 |
| Feb | 30.5 mm (1.2 in) | 20 February 2015 |
| Mar | 27.5 mm (1.1 in) | 6 March 1998 |
| Apr | 33.8 mm (1.3 in) | 30 April 2004 |
| May | 44.9 mm (1.8 in) | 21 May 1981 |
| Jun | 101.4 mm (4.0 in) | 23 June 1975 |
| Jul | 75.3 mm (3.0 in) | 14 July 2011 |
| Aug | 54.7 mm (2.2 in) | 10 August 1999 |
| Sep | 58.3 mm (2.3 in) | 19 September 2001 |
| Oct | 46.1 mm (1.8 in) | 4 October 1999 |
| Nov | 38.1 mm (1.5 in) | 27 November 1983 |
| Dec | 38.5 mm (1.5 in) | 30 December 1993 |
Period of Record Coverage
1956 to 2026| Year | Days with data | Share of year | Complete |
|---|---|---|---|
| 1956 | 91 | 25% | No |
| 1957 | 365 | 100% | Yes |
| 1958 | 365 | 100% | Yes |
| 1959 | 365 | 100% | Yes |
| 1960 | 365 | 100% | Yes |
| 1961 | 293 | 80% | No |
| 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 | 365 | 100% | Yes |
| 2000 | 366 | 100% | Yes |
| 2001 | 365 | 100% | Yes |
| 2002 | 365 | 100% | Yes |
| 2003 | 365 | 100% | Yes |
| 2004 | 366 | 100% | Yes |
| 2005 | 365 | 100% | Yes |
| 2006 | 365 | 100% | 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 | 365 | 100% | Yes |
| 2017 | 365 | 100% | Yes |
| 2018 | 365 | 100% | Yes |
| 2019 | 364 | 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 |
|---|---|---|---|---|---|---|
| 14 August 2026 | Rotterdam, NL | monthly high max | 35.3 C (95.5 F) | 0.4 C (0.7 F) | 36 years | 28 of 100 (Routine) |
| 13 August 2026 | Rotterdam, NL | daily high max | 33.8 C (92.8 F) | 1.9 C (3.4 F) | 4 years | 13 of 100 (Routine) |
| 5 August 2026 | Rotterdam, NL | daily high min | 19.1 C (66.4 F) | 1.9 C (3.4 F) | 44 years | 27 of 100 (Routine) |
| 4 August 2026 | Rotterdam, NL | daily high min | 18.0 C (64.4 F) | 0.1 C (0.2 F) | 4 years | 8 of 100 (Routine) |
| 29 July 2026 | Rotterdam, NL | daily high max | 33.7 C (92.7 F) | 3.1 C (5.6 F) | 24 years | 21 of 100 (Routine) |
| 15 July 2026 | Rotterdam, NL | daily high min | 18.3 C (64.9 F) | 0.9 C (1.6 F) | 23 years | 16 of 100 (Routine) |
| 6 July 2026 | Rotterdam, NL | daily high min | 17.9 C (64.2 F) | 0.2 C (0.4 F) | 24 years | 14 of 100 (Routine) |
| 28 June 2026 | Rotterdam, NL | daily high min | 19.4 C (66.9 F) | 0.7 C (1.3 F) | 15 years | 13 of 100 (Routine) |
| 27 June 2026 | Rotterdam, NL | daily high min | 19.8 C (67.6 F) | 2.1 C (3.8 F) | 5 years | 15 of 100 (Routine) |
| 26 June 2026 | Rotterdam, NL | all-time high min | 22.0 C (71.6 F) | 0.4 C (0.7 F) | 0 years | 28 of 100 (Routine) |
| 26 June 2026 | Rotterdam, NL | monthly high max | 36.6 C (97.9 F) | 1.3 C (2.3 F) | 0 years | 20 of 100 (Routine) |
| 25 June 2026 | Rotterdam, NL | all-time high min | 21.6 C (70.9 F) | 0.7 C (1.3 F) | 21 years | 35 of 100 (Notable) |
| 24 June 2026 | Rotterdam, NL | monthly high max | 35.3 C (95.5 F) | 1.6 C (2.9 F) | 0 years | 20 of 100 (Routine) |
| 24 June 2026 | Rotterdam, NL | daily high min | 20.4 C (68.7 F) | 0.7 C (1.3 F) | 7 years | 11 of 100 (Routine) |
| 21 June 2026 | Rotterdam, NL | daily high min | 19.0 C (66.2 F) | 2.5 C (4.5 F) | 25 years | 22 of 100 (Routine) |
| 19 June 2026 | Rotterdam, NL | monthly high max | 33.7 C (92.7 F) | 0.7 C (1.3 F) | 68 years | 38 of 100 (Notable) |
| 29 May 2026 | Rotterdam, NL | daily high max | 30.8 C (87.4 F) | 1.0 C (1.8 F) | 8 years | 11 of 100 (Routine) |
| 26 May 2026 | Rotterdam, NL | daily high max | 30.5 C (86.9 F) | 1.8 C (3.2 F) | 8 years | 13 of 100 (Routine) |
| 25 May 2026 | Rotterdam, NL | daily high max | 29.1 C (84.4 F) | 0.9 C (1.6 F) | 36 years | 20 of 100 (Routine) |
| 23 May 2026 | Rotterdam, NL | daily high max | 28.7 C (83.7 F) | 1.0 C (1.8 F) | 33 years | 19 of 100 (Routine) |
Climate Trend
68 complete years, 1957 to 2025| Year | Annual mean temperature | Difference from the station mean |
|---|---|---|
| 1957 | 10.2 C | 0.00 C |
| 1958 | 9.6 C | -0.51 C |
| 1959 | 10.2 C | +0.02 C |
| 1960 | 9.9 C | -0.25 C |
| 1962 | 8.3 C | -1.87 C |
| 1963 | 8.0 C | -2.16 C |
| 1964 | 9.5 C | -0.63 C |
| 1965 | 9.0 C | -1.15 C |
| 1966 | 9.8 C | -0.34 C |
| 1967 | 10.2 C | +0.05 C |
| 1968 | 9.3 C | -0.82 C |
| 1969 | 9.5 C | -0.62 C |
| 1970 | 9.6 C | -0.56 C |
| 1971 | 9.5 C | -0.61 C |
| 1972 | 9.2 C | -0.97 C |
| 1973 | 9.6 C | -0.59 C |
| 1974 | 9.8 C | -0.36 C |
| 1975 | 10.1 C | -0.07 C |
| 1976 | 9.9 C | -0.26 C |
| 1977 | 9.7 C | -0.44 C |
| 1978 | 9.0 C | -1.18 C |
| 1979 | 8.7 C | -1.49 C |
| 1980 | 9.3 C | -0.85 C |
| 1981 | 9.4 C | -0.79 C |
| 1982 | 10.1 C | -0.04 C |
| 1983 | 10.1 C | -0.06 C |
| 1984 | 9.6 C | -0.54 C |
| 1985 | 8.6 C | -1.58 C |
| 1986 | 8.8 C | -1.34 C |
| 1987 | 8.9 C | -1.24 C |
| 1988 | 10.5 C | +0.39 C |
| 1989 | 10.8 C | +0.64 C |
| 1990 | 10.8 C | +0.63 C |
| 1991 | 9.4 C | -0.75 C |
| 1992 | 10.6 C | +0.41 C |
| 1993 | 9.8 C | -0.40 C |
| 1994 | 10.6 C | +0.45 C |
| 1995 | 10.4 C | +0.25 C |
| 1996 | 8.6 C | -1.57 C |
| 1997 | 10.2 C | +0.05 C |
| 1998 | 10.5 C | +0.39 C |
| 1999 | 11.0 C | +0.82 C |
| 2000 | 11.0 C | +0.81 C |
| 2001 | 10.4 C | +0.25 C |
| 2002 | 10.9 C | +0.71 C |
| 2003 | 10.5 C | +0.33 C |
| 2004 | 10.4 C | +0.20 C |
| 2005 | 10.7 C | +0.52 C |
| 2006 | 11.2 C | +1.05 C |
| 2007 | 11.2 C | +1.08 C |
| 2008 | 10.5 C | +0.30 C |
| 2009 | 10.6 C | +0.41 C |
| 2010 | 9.0 C | -1.13 C |
| 2011 | 11.1 C | +0.90 C |
| 2012 | 10.3 C | +0.18 C |
| 2013 | 9.7 C | -0.46 C |
| 2014 | 11.7 C | +1.58 C |
| 2015 | 10.9 C | +0.74 C |
| 2016 | 10.9 C | +0.73 C |
| 2017 | 11.0 C | +0.88 C |
| 2018 | 11.3 C | +1.16 C |
| 2019 | 11.2 C | +1.06 C |
| 2020 | 11.8 C | +1.61 C |
| 2021 | 10.6 C | +0.47 C |
| 2022 | 11.7 C | +1.57 C |
| 2023 | 11.9 C | +1.77 C |
| 2024 | 12.0 C | +1.82 C |
| 2025 | 11.6 C | +1.44 C |
The annual mean temperature here has risen by 0.3 C (0.2 to 0.4) per decade over 1957 to 2025. In Fahrenheit: 0.6 F (0.4 to 0.7) per decade. The slope is a straight line fitted to 68 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 | 0.6 F (0.4 to 0.7) per decade | 1957 to 2025 | 68 | Rise |
| Mean daily maximum | 0.4 C (0.3 to 0.5) per decade | 0.7 F (0.6 to 0.9) per decade | 1957 to 2025 | 68 | Rise |
| Mean daily minimum | 0.3 C (0.2 to 0.3) per decade | 0.5 F (0.3 to 0.6) per decade | 1957 to 2025 | 68 | 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
1956 to 2026| Measure | Record | Year of the record | Median year | Years with a value |
|---|---|---|---|---|
| Hottest day (TXx) | 37.2 C (99.0 F) | 2019 | 31.3 C (88.3 F) | 71 |
| Coldest night (TNn) | -17.1 C (1.2 F) | 1985 | -9.6 C (14.7 F) | 71 |
| Wettest day (Rx1day) | 101.4 mm (4.0 in) | 1975 | 35.2 mm (1.4 in) | 53 |
| Wettest five days (Rx5day) | 117.4 mm (4.6 in) | 1975 | 67.6 mm (2.7 in) | 53 |
| Longest dry spell (CDD) | 48 days | 2007 | 22 days | 53 |
Hottest day (TXx)
| Year | Hottest day (TXx) |
|---|---|
| 1956 | 17.3 C (63.1 F) |
| 1957 | 33.0 C (91.4 F) |
| 1958 | 28.8 C (83.8 F) |
| 1959 | 34.2 C (93.6 F) |
| 1960 | 28.7 C (83.7 F) |
| 1961 | 28.8 C (83.8 F) |
| 1962 | 28.1 C (82.6 F) |
| 1963 | 28.2 C (82.8 F) |
| 1964 | 31.5 C (88.7 F) |
| 1965 | 26.7 C (80.1 F) |
| 1966 | 30.5 C (86.9 F) |
| 1967 | 30.8 C (87.4 F) |
| 1968 | 32.8 C (91.0 F) |
| 1969 | 30.5 C (86.9 F) |
| 1970 | 29.5 C (85.1 F) |
| 1971 | 28.2 C (82.8 F) |
| 1972 | 30.9 C (87.6 F) |
| 1973 | 30.5 C (86.9 F) |
| 1974 | 25.2 C (77.4 F) |
| 1975 | 32.3 C (90.1 F) |
| 1976 | 32.2 C (90.0 F) |
| 1977 | 29.5 C (85.1 F) |
| 1978 | 31.5 C (88.7 F) |
| 1979 | 27.6 C (81.7 F) |
| 1980 | 28.5 C (83.3 F) |
| 1981 | 28.0 C (82.4 F) |
| 1982 | 31.1 C (88.0 F) |
| 1983 | 32.2 C (90.0 F) |
| 1984 | 30.8 C (87.4 F) |
| 1985 | 29.8 C (85.6 F) |
| 1986 | 30.2 C (86.4 F) |
| 1987 | 29.1 C (84.4 F) |
| 1988 | 27.8 C (82.0 F) |
| 1989 | 31.3 C (88.3 F) |
| 1990 | 34.9 C (94.8 F) |
| 1991 | 32.3 C (90.1 F) |
| 1992 | 30.1 C (86.2 F) |
| 1993 | 28.7 C (83.7 F) |
| 1994 | 33.9 C (93.0 F) |
| 1995 | 32.2 C (90.0 F) |
| 1996 | 32.8 C (91.0 F) |
| 1997 | 31.3 C (88.3 F) |
| 1998 | 30.6 C (87.1 F) |
| 1999 | 31.2 C (88.2 F) |
| 2000 | 32.3 C (90.1 F) |
| 2001 | 31.7 C (89.1 F) |
| 2002 | 32.0 C (89.6 F) |
| 2003 | 33.3 C (91.9 F) |
| 2004 | 31.1 C (88.0 F) |
| 2005 | 33.0 C (91.4 F) |
| 2006 | 34.7 C (94.5 F) |
| 2007 | 28.9 C (84.0 F) |
| 2008 | 29.9 C (85.8 F) |
| 2009 | 32.6 C (90.7 F) |
| 2010 | 35.0 C (95.0 F) |
| 2011 | 32.2 C (90.0 F) |
| 2012 | 33.3 C (91.9 F) |
| 2013 | 33.2 C (91.8 F) |
| 2014 | 34.5 C (94.1 F) |
| 2015 | 34.4 C (93.9 F) |
| 2016 | 33.4 C (92.1 F) |
| 2017 | 31.3 C (88.3 F) |
| 2018 | 36.1 C (97.0 F) |
| 2019 | 37.2 C (99.0 F) |
| 2020 | 33.8 C (92.8 F) |
| 2021 | 29.8 C (85.6 F) |
| 2022 | 37.1 C (98.8 F) |
| 2023 | 32.9 C (91.2 F) |
| 2024 | 31.7 C (89.1 F) |
| 2025 | 36.6 C (97.9 F) |
| 2026 | 36.6 C (97.9 F) |
Coldest night (TNn)
| Year | Coldest night (TNn) |
|---|---|
| 1956 | -6.3 C (20.7 F) |
| 1957 | -7.9 C (17.8 F) |
| 1958 | -12.6 C (9.3 F) |
| 1959 | -6.2 C (20.8 F) |
| 1960 | -10.5 C (13.1 F) |
| 1961 | -12.2 C (10.0 F) |
| 1962 | -12.7 C (9.1 F) |
| 1963 | -16.3 C (2.7 F) |
| 1964 | -9.3 C (15.3 F) |
| 1965 | -10.8 C (12.6 F) |
| 1966 | -11.7 C (10.9 F) |
| 1967 | -11.4 C (11.5 F) |
| 1968 | -12.8 C (9.0 F) |
| 1969 | -12.8 C (9.0 F) |
| 1970 | -12.3 C (9.9 F) |
| 1971 | -12.7 C (9.1 F) |
| 1972 | -10.7 C (12.7 F) |
| 1973 | -13.3 C (8.1 F) |
| 1974 | -3.5 C (25.7 F) |
| 1975 | -8.7 C (16.3 F) |
| 1976 | -9.6 C (14.7 F) |
| 1977 | -5.7 C (21.7 F) |
| 1978 | -12.6 C (9.3 F) |
| 1979 | -15.4 C (4.3 F) |
| 1980 | -10.1 C (13.8 F) |
| 1981 | -10.8 C (12.6 F) |
| 1982 | -11.7 C (10.9 F) |
| 1983 | -7.5 C (18.5 F) |
| 1984 | -7.9 C (17.8 F) |
| 1985 | -17.1 C (1.2 F) |
| 1986 | -13.8 C (7.2 F) |
| 1987 | -13.8 C (7.2 F) |
| 1988 | -7.1 C (19.2 F) |
| 1989 | -7.4 C (18.7 F) |
| 1990 | -4.1 C (24.6 F) |
| 1991 | -12.9 C (8.8 F) |
| 1992 | -7.9 C (17.8 F) |
| 1993 | -9.6 C (14.7 F) |
| 1994 | -9.4 C (15.1 F) |
| 1995 | -10.7 C (12.7 F) |
| 1996 | -11.1 C (12.0 F) |
| 1997 | -14.4 C (6.1 F) |
| 1998 | -9.4 C (15.1 F) |
| 1999 | -11.5 C (11.3 F) |
| 2000 | -5.8 C (21.6 F) |
| 2001 | -8.6 C (16.5 F) |
| 2002 | -7.7 C (18.1 F) |
| 2003 | -9.1 C (15.6 F) |
| 2004 | -10.4 C (13.3 F) |
| 2005 | -13.4 C (7.9 F) |
| 2006 | -6.2 C (20.8 F) |
| 2007 | -7.5 C (18.5 F) |
| 2008 | -8.2 C (17.2 F) |
| 2009 | -9.7 C (14.5 F) |
| 2010 | -11.2 C (11.8 F) |
| 2011 | -5.9 C (21.4 F) |
| 2012 | -16.5 C (2.3 F) |
| 2013 | -13.4 C (7.9 F) |
| 2014 | -3.9 C (25.0 F) |
| 2015 | -5.2 C (22.6 F) |
| 2016 | -6.8 C (19.8 F) |
| 2017 | -6.7 C (19.9 F) |
| 2018 | -8.0 C (17.6 F) |
| 2019 | -7.4 C (18.7 F) |
| 2020 | -3.0 C (26.6 F) |
| 2021 | -10.5 C (13.1 F) |
| 2022 | -7.9 C (17.8 F) |
| 2023 | -5.4 C (22.3 F) |
| 2024 | -7.1 C (19.2 F) |
| 2025 | -5.8 C (21.6 F) |
| 2026 | -4.7 C (23.5 F) |
Wettest day (Rx1day)
| Year | Wettest day (Rx1day) |
|---|---|
| 1956 | n/a |
| 1957 | n/a |
| 1958 | n/a |
| 1959 | n/a |
| 1960 | n/a |
| 1961 | n/a |
| 1962 | n/a |
| 1963 | n/a |
| 1964 | n/a |
| 1965 | n/a |
| 1966 | n/a |
| 1967 | n/a |
| 1968 | n/a |
| 1969 | n/a |
| 1970 | n/a |
| 1971 | n/a |
| 1972 | n/a |
| 1973 | n/a |
| 1974 | 37.5 mm (1.5 in) |
| 1975 | 101.4 mm (4.0 in) |
| 1976 | 19.3 mm (0.8 in) |
| 1977 | 51.1 mm (2.0 in) |
| 1978 | 38.0 mm (1.5 in) |
| 1979 | 22.9 mm (0.9 in) |
| 1980 | 22.9 mm (0.9 in) |
| 1981 | 44.9 mm (1.8 in) |
| 1982 | 45.9 mm (1.8 in) |
| 1983 | 38.1 mm (1.5 in) |
| 1984 | 31.9 mm (1.3 in) |
| 1985 | 35.6 mm (1.4 in) |
| 1986 | 30.0 mm (1.2 in) |
| 1987 | 48.6 mm (1.9 in) |
| 1988 | 26.3 mm (1.0 in) |
| 1989 | 24.4 mm (1.0 in) |
| 1990 | 26.2 mm (1.0 in) |
| 1991 | 29.4 mm (1.2 in) |
| 1992 | 33.1 mm (1.3 in) |
| 1993 | 38.5 mm (1.5 in) |
| 1994 | 40.6 mm (1.6 in) |
| 1995 | 25.7 mm (1.0 in) |
| 1996 | 24.3 mm (1.0 in) |
| 1997 | 21.9 mm (0.9 in) |
| 1998 | 52.3 mm (2.1 in) |
| 1999 | 54.7 mm (2.2 in) |
| 2000 | 32.6 mm (1.3 in) |
| 2001 | 58.3 mm (2.3 in) |
| 2002 | 48.1 mm (1.9 in) |
| 2003 | 33.2 mm (1.3 in) |
| 2004 | 44.6 mm (1.8 in) |
| 2005 | 51.0 mm (2.0 in) |
| 2006 | 47.2 mm (1.9 in) |
| 2007 | 35.1 mm (1.4 in) |
| 2008 | 44.9 mm (1.8 in) |
| 2009 | 28.5 mm (1.1 in) |
| 2010 | 26.5 mm (1.0 in) |
| 2011 | 75.3 mm (3.0 in) |
| 2012 | 22.4 mm (0.9 in) |
| 2013 | 38.2 mm (1.5 in) |
| 2014 | 35.4 mm (1.4 in) |
| 2015 | 30.5 mm (1.2 in) |
| 2016 | 36.8 mm (1.4 in) |
| 2017 | 42.9 mm (1.7 in) |
| 2018 | 41.2 mm (1.6 in) |
| 2019 | 28.8 mm (1.1 in) |
| 2020 | 30.6 mm (1.2 in) |
| 2021 | 32.3 mm (1.3 in) |
| 2022 | 24.4 mm (1.0 in) |
| 2023 | 35.2 mm (1.4 in) |
| 2024 | 42.9 mm (1.7 in) |
| 2025 | 29.2 mm (1.1 in) |
| 2026 | 13.6 mm (0.5 in) |
Wettest five days (Rx5day)
| Year | Wettest five days (Rx5day) |
|---|---|
| 1956 | n/a |
| 1957 | n/a |
| 1958 | n/a |
| 1959 | n/a |
| 1960 | n/a |
| 1961 | n/a |
| 1962 | n/a |
| 1963 | n/a |
| 1964 | n/a |
| 1965 | n/a |
| 1966 | n/a |
| 1967 | n/a |
| 1968 | n/a |
| 1969 | n/a |
| 1970 | n/a |
| 1971 | n/a |
| 1972 | n/a |
| 1973 | n/a |
| 1974 | 73.4 mm (2.9 in) |
| 1975 | 117.4 mm (4.6 in) |
| 1976 | 38.8 mm (1.5 in) |
| 1977 | 77.7 mm (3.1 in) |
| 1978 | 62.8 mm (2.5 in) |
| 1979 | 60.0 mm (2.4 in) |
| 1980 | 52.2 mm (2.1 in) |
| 1981 | 83.0 mm (3.3 in) |
| 1982 | 114.5 mm (4.5 in) |
| 1983 | 81.9 mm (3.2 in) |
| 1984 | 79.9 mm (3.1 in) |
| 1985 | 60.0 mm (2.4 in) |
| 1986 | 72.0 mm (2.8 in) |
| 1987 | 74.2 mm (2.9 in) |
| 1988 | 69.1 mm (2.7 in) |
| 1989 | 51.3 mm (2.0 in) |
| 1990 | 52.1 mm (2.1 in) |
| 1991 | 66.1 mm (2.6 in) |
| 1992 | 69.6 mm (2.7 in) |
| 1993 | 60.9 mm (2.4 in) |
| 1994 | 91.2 mm (3.6 in) |
| 1995 | 66.2 mm (2.6 in) |
| 1996 | 43.0 mm (1.7 in) |
| 1997 | 47.2 mm (1.9 in) |
| 1998 | 101.8 mm (4.0 in) |
| 1999 | 85.9 mm (3.4 in) |
| 2000 | 77.9 mm (3.1 in) |
| 2001 | 102.2 mm (4.0 in) |
| 2002 | 63.5 mm (2.5 in) |
| 2003 | 47.4 mm (1.9 in) |
| 2004 | 76.3 mm (3.0 in) |
| 2005 | 67.6 mm (2.7 in) |
| 2006 | 105.8 mm (4.2 in) |
| 2007 | 56.4 mm (2.2 in) |
| 2008 | 65.1 mm (2.6 in) |
| 2009 | 53.0 mm (2.1 in) |
| 2010 | 67.0 mm (2.6 in) |
| 2011 | 110.6 mm (4.4 in) |
| 2012 | 50.7 mm (2.0 in) |
| 2013 | 105.9 mm (4.2 in) |
| 2014 | 74.4 mm (2.9 in) |
| 2015 | 54.5 mm (2.1 in) |
| 2016 | 72.2 mm (2.8 in) |
| 2017 | 88.3 mm (3.5 in) |
| 2018 | 63.1 mm (2.5 in) |
| 2019 | 55.1 mm (2.2 in) |
| 2020 | 69.2 mm (2.7 in) |
| 2021 | 61.1 mm (2.4 in) |
| 2022 | 65.7 mm (2.6 in) |
| 2023 | 74.8 mm (2.9 in) |
| 2024 | 72.2 mm (2.8 in) |
| 2025 | 60.1 mm (2.4 in) |
| 2026 | 40.3 mm (1.6 in) |
Longest dry spell (CDD)
| Year | Longest dry spell (CDD) |
|---|---|
| 1956 | n/a |
| 1957 | n/a |
| 1958 | n/a |
| 1959 | n/a |
| 1960 | n/a |
| 1961 | n/a |
| 1962 | n/a |
| 1963 | n/a |
| 1964 | n/a |
| 1965 | n/a |
| 1966 | n/a |
| 1967 | n/a |
| 1968 | n/a |
| 1969 | n/a |
| 1970 | n/a |
| 1971 | n/a |
| 1972 | n/a |
| 1973 | n/a |
| 1974 | 18 days |
| 1975 | 18 days |
| 1976 | 25 days |
| 1977 | 18 days |
| 1978 | 24 days |
| 1979 | 15 days |
| 1980 | 32 days |
| 1981 | 23 days |
| 1982 | 18 days |
| 1983 | 24 days |
| 1984 | 21 days |
| 1985 | 19 days |
| 1986 | 34 days |
| 1987 | 29 days |
| 1988 | 20 days |
| 1989 | 18 days |
| 1990 | 17 days |
| 1991 | 26 days |
| 1992 | 20 days |
| 1993 | 20 days |
| 1994 | 16 days |
| 1995 | 28 days |
| 1996 | 30 days |
| 1997 | 23 days |
| 1998 | 17 days |
| 1999 | 25 days |
| 2000 | 15 days |
| 2001 | 13 days |
| 2002 | 23 days |
| 2003 | 28 days |
| 2004 | 22 days |
| 2005 | 16 days |
| 2006 | 18 days |
| 2007 | 48 days |
| 2008 | 18 days |
| 2009 | 19 days |
| 2010 | 20 days |
| 2011 | 27 days |
| 2012 | 27 days |
| 2013 | 22 days |
| 2014 | 23 days |
| 2015 | 19 days |
| 2016 | 16 days |
| 2017 | 25 days |
| 2018 | 47 days |
| 2019 | 20 days |
| 2020 | 34 days |
| 2021 | 31 days |
| 2022 | 28 days |
| 2023 | 38 days |
| 2024 | 17 days |
| 2025 | 29 days |
| 2026 | 29 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
68 years with a frostAcross 68 years with a frost, the median last spring frost at Rotterdam falls on 17 April and the median first autumn frost on 11 November, which leaves a median of 209 days between them.
In 1996 to 2025 the median growing season was 218 days. That is 14 days more than in 1957 to 1987.
Fitted over all years, the growing season changes by +4.5 days per decade at this station.
| Measure | Median, all years | Earliest period (1957 to 1987) | Recent period (1996 to 2025) | Recent against earliest | Fitted trend |
|---|---|---|---|---|---|
| Last spring frost | 17 April | 24 April | 12 April | 12 days earlier | -3.0 days per decade |
| First autumn frost | 11 November | 9 November | 15 November | 6 days later | +1.5 days per decade |
| Growing days | 209 days | 204 days | 218 days | 14 days more | +4.5 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
52 years, 1974 to 2025A day with at least 34.6 mm (1.4 in) of rain is expected about once in 2 years. A day with at least 87.5 mm (3.4 in) of rain is expected about once in 100 years.
| Expected about once in | A day with at least | Note |
|---|---|---|
| 2 years | 34.6 mm (1.4 in) | |
| 5 years | 46.2 mm (1.8 in) | |
| 10 years | 54.8 mm (2.2 in) | |
| 25 years | 66.9 mm (2.6 in) | |
| 50 years | 76.8 mm (3.0 in) | |
| 100 years | 87.5 mm (3.4 in) | Longer than the 52 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, 52 years of values from 1974 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: 101.4 mm (4.0 in) in 1975; 75.3 mm (3.0 in) in 2011; 58.3 mm (2.3 in) in 2001.
Station Changes
2 suspected2 changes were suspected in the annual mean temperature of Rotterdam, at 1971 and 2021. Each is measured against neighbouring stations.
- Relative to 5 neighbouring stations, the station's annual mean temperature from 1971 ran 0.2 C (0.3 F) lower than in the years before (likely change).
- Relative to 5 neighbouring stations, the station's annual mean temperature from 2021 ran 0.1 C (0.2 F) higher than in the years before (possible change).
| Year | Shift (C) | Shift (F) | Strength | Neighbours |
|---|---|---|---|---|
| 1971 | -0.2 | -0.3 | likely | 5 |
| 2021 | +0.1 | +0.2 | 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
2011 to 2025 against 1961 to 1990Over 2011 to 2025, Rotterdam had a mean temperature of 11.2 C (52.1 F) and 879.0 mm (34.6 in) of rain a year. The 3 stations whose 1961 to 1990 climate was closest to that are Tacoma City Hall (United States, 7,883 km away), Vitoria Aerodromo (Spain, 1,144 km away) and Seattle Tacoma AP (United States, 7,860 km away).
| Twin station | Country | Distance away | Mean temperature, 1961-1990 | Rain a year, 1961-1990 | Climate difference |
|---|---|---|---|---|---|
| Tacoma City Hall | United States | 7,883 km (4,898 mi) | 11.4 C (52.4 F) | 941.9 mm (37.1 in) | 0.71 |
| Vitoria Aerodromo | Spain | 1,144 km (711 mi) | 11.1 C (52.0 F) | 947.4 mm (37.3 in) | 0.75 |
| Seattle Tacoma AP | United States | 7,860 km (4,884 mi) | 11.1 C (52.0 F) | 945.3 mm (37.2 in) | 0.77 |
Twins are stations, not cities. A twin is one of the three stations at least 100 km away whose earlier climate is closest to this station's recent one, so a close match does not mean the two places look alike in other ways. A station move or a gap in a record can change that station's averages. The list describes past climate; it is not a forecast and does not say what caused any change. How twins are found, and a search for any station.
Download the Data
Source: NOAA National Centers for Environmental Information, Global Historical Climatology Network Daily (GHCN-Daily). Records are computed by World Extreme Weather Monitor and are not official NOAA products. (US Government open data (NOAA NCEI)) Data as of 2026-10-15 (15 October 2026). Records are computed by this site and are not official.
Data as of . Last revised (2026-10-13).