Built 2026-10-17 (17 October 2026)

De Bilt Weather Records (NLM00006260)

Record envelope, standing records and threshold days for De Bilt (NLM00006260), Netherlands, with 126 years of record.

Key Facts for De Bilt

  • De Bilt (NLM00006260) is a weather station in Netherlands at 52.10 latitude and 5.18 longitude, 2 m (7 ft) above sea level.
  • The station reports from 1901 to 2026, 126 years of record.
  • 1,464 records set at De Bilt still stand.
  • Records are tracked for tmax, tmin, prcp, snwd: an element needs 30 years of data to be eligible.
  • De Bilt set a daily record high maximum temperature of 35.2 C (95.4 F) on 14 August 2026.

About the Station

  • Location: Netherlands, 52.10 latitude, 5.18 longitude.
  • Elevation: 2 m (7 ft).
  • Period of record: 1901 to 2026, 126 years.
  • Eligible elements: tmax, tmin, prcp, snwd.

Daily Record Envelope and 2026

11 days at or beyond a record
Daily record high and record low at De Bilt, with 2026 drawn through them The band shows the record high and record low for each calendar day at De Bilt. The lines show the 2026 daily maximum and minimum. 11 days in 2026 matched or passed a record. Temperatures are in degrees Celsius. -40-2002040 JanFebMarAprMayJunJulAugSepOctNovDec
The band shows the record high and record low for each calendar day at De Bilt. The lines show the 2026 daily maximum and minimum. 11 days in 2026 matched or passed a record. Temperatures are in degrees Celsius.
Daily record high and record low at De Bilt, with 2026 drawn through them
MonthHighest record highLowest record low2026 highest maximum2026 lowest minimum
Jan15.6 C (60.1 F)-24.8 C (-12.6 F)11.8 C (53.2 F)-9.6 C (14.7 F)
Feb18.9 C (66.0 F)-21.6 C (-6.9 F)17.3 C (63.1 F)-5.2 C (22.6 F)
Mar23.9 C (75.0 F)-14.4 C (6.1 F)17.7 C (63.9 F)-2.2 C (28.0 F)
Apr28.9 C (84.0 F)-6.6 C (20.1 F)21.0 C (69.8 F)0.6 C (33.1 F)
May32.9 C (91.2 F)-3.8 C (25.2 F)31.2 C (88.2 F)0.7 C (33.3 F)
Jun36.8 C (98.2 F)0.2 C (32.4 F)36.8 C (98.2 F)6.1 C (43.0 F)
Jul37.5 C (99.5 F)2.8 C (37.0 F)32.9 C (91.2 F)9.1 C (48.4 F)
Aug35.3 C (95.5 F)3.8 C (38.8 F)35.2 C (95.4 F)6.4 C (43.5 F)
Sep33.5 C (92.3 F)-0.7 C (30.7 F)n/an/a
Oct26.5 C (79.7 F)-7.8 C (18.0 F)n/an/a
Nov19.3 C (66.7 F)-14.4 C (6.1 F)n/an/a
Dec15.9 C (60.6 F)-16.6 C (2.1 F)n/an/a

Which Years Hold Standing Records

1,464 standing records
Standing records at De Bilt by the year they were set 1,464 records at De Bilt still stand. 2018 holds the most, with 27. 01020301901: 81902: 141903: 151904: 71905: 91906: 51907: 81908: 251909: 41910: 71911: 141912: 191913: 41914: 31915: 61916: 91917: 121918: 31919: 241920: 121921: 231922: 241923: 251924: 91925: 191926: 51927: 101928: 61929: 241930: 51931: 101932: 91933: 61934: 51935: 51936: 51937: 61938: 171939: 91940: 81941: 161942: 181943: 61944: 41945: 71946: 81947: 221948: 81949: 121950: 21951: 51952: 81953: 61954: 111955: 91956: 251957: 141958: 101959: 51960: 41961: 91962: 171963: 151964: 101965: 101966: 91967: 81968: 121969: 101970: 41971: 161972: 91973: 71974: 61975: 141976: 121977: 71978: 91979: 141980: 121981: 81982: 61983: 111984: 51985: 171986: 131987: 141988: 61989: 151990: 241991: 121992: 51993: 221994: 131995: 71996: 101997: 121998: 201999: 32000: 142001: 92002: 102003: 132004: 122005: 132006: 192007: 192008: 82009: 62010: 102011: 152012: 102013: 92014: 162015: 262016: 132017: 92018: 272019: 172020: 212021: 92022: 122023: 182024: 252025: 162026: 171901191419271940195319661979199220052018
1,464 records at De Bilt still stand. 2018 holds the most, with 27.
Standing records at De Bilt by the year they were set
Year setStanding records
19018
190214
190315
19047
19059
19065
19078
190825
19094
19107
191114
191219
19134
19143
19156
19169
191712
19183
191924
192012
192123
192224
192325
19249
192519
19265
192710
19286
192924
19305
193110
19329
19336
19345
19355
19365
19376
193817
19399
19408
194116
194218
19436
19444
19457
19468
194722
19488
194912
19502
19515
19528
19536
195411
19559
195625
195714
195810
19595
19604
19619
196217
196315
196410
196510
19669
19678
196812
196910
19704
197116
19729
19737
19746
197514
197612
19777
19789
197914
198012
19818
19826
198311
19845
198517
198613
198714
19886
198915
199024
199112
19925
199322
199413
19957
199610
199712
199820
19993
200014
20019
200210
200313
200412
200513
200619
200719
20088
20096
201010
201115
201210
20139
201416
201526
201613
20179
201827
201917
202021
20219
202212
202318
202425
202516
202617

All-Time Record Progression

11 new records
When De Bilt set new all-time records 11 all-time records were set at De Bilt between 19 December 1938 and 25 July 2019. Each dot is a new record. Record low maximum temperatureRecord low minimum temperatureRecord high maximum temperatureRecord high minimum temperatureRecord daily precipitation19 December 1938: Record low maximum temperature -10.9 C (12.4 F)20 December 1938: Record low maximum temperature -11.4 C (11.5 F)26 January 1942: Record low maximum temperature -11.5 C (11.3 F)26 January 1942: Record low minimum temperature -23.4 C (-10.1 F)27 January 1942: Record low minimum temperature -24.8 C (-12.6 F)27 June 1947: Record high maximum temperature 36.1 C (97.0 F)9 August 2004: Record high minimum temperature 20.8 C (69.4 F)13 October 2013: Record daily precipitation 63.9 mm (2.5 in)27 July 2018: Record high minimum temperature 22.4 C (72.3 F)24 July 2019: Record high maximum temperature 36.4 C (97.5 F)25 July 2019: Record high maximum temperature 37.5 C (99.5 F)19501965198019952010
11 all-time records were set at De Bilt between 19 December 1938 and 25 July 2019. Each dot is a new record.
When De Bilt set new all-time records
DateKindDetail
1938-12-19Record low maximum temperatureRecord low maximum temperature -10.9 C (12.4 F)
1938-12-20Record low maximum temperatureRecord low maximum temperature -11.4 C (11.5 F)
1942-01-26Record low maximum temperatureRecord low maximum temperature -11.5 C (11.3 F)
1942-01-26Record low minimum temperatureRecord low minimum temperature -23.4 C (-10.1 F)
1942-01-27Record low minimum temperatureRecord low minimum temperature -24.8 C (-12.6 F)
1947-06-27Record high maximum temperatureRecord high maximum temperature 36.1 C (97.0 F)
2004-08-09Record high minimum temperatureRecord high minimum temperature 20.8 C (69.4 F)
2013-10-13Record daily precipitationRecord daily precipitation 63.9 mm (2.5 in)
2018-07-27Record high minimum temperatureRecord high minimum temperature 22.4 C (72.3 F)
2019-07-24Record high maximum temperatureRecord high maximum temperature 36.4 C (97.5 F)
2019-07-25Record high maximum temperatureRecord high maximum temperature 37.5 C (99.5 F)

Wettest Day of Each Month

Oct: 63.9 mm (2.5 in)
Record daily precipitation for each month at De Bilt The wettest day on record for each calendar month at De Bilt. The most was 63.9 mm (2.5 in) on 13 October 2013. 020406080 Jan: 40.3 mm (1.6 in), 16 January 1918 Jan Feb: 53.9 mm (2.1 in), 8 February 1946 Feb Mar: 39.1 mm (1.5 in), 22 March 1946 Mar Apr: 33.6 mm (1.3 in), 24 April 2014 Apr May: 55.2 mm (2.2 in), 7 May 1931 May Jun: 52.5 mm (2.1 in), 6 June 1943 Jun Jul: 61.2 mm (2.4 in), 19 July 1966 Jul Aug: 62.3 mm (2.5 in), 1 August 1917 Aug Sep: 53.3 mm (2.1 in), 10 September 2024 Sep Oct: 63.9 mm (2.5 in), 13 October 2013 Oct Nov: 45.5 mm (1.8 in), 27 November 1983 Nov Dec: 39.3 mm (1.5 in), 31 December 2017 Dec
The wettest day on record for each calendar month at De Bilt. The most was 63.9 mm (2.5 in) on 13 October 2013.
Record daily precipitation for each month at De Bilt
MonthRecord daily precipitation (mm)Date
Jan40.3 mm (1.6 in)16 January 1918
Feb53.9 mm (2.1 in)8 February 1946
Mar39.1 mm (1.5 in)22 March 1946
Apr33.6 mm (1.3 in)24 April 2014
May55.2 mm (2.2 in)7 May 1931
Jun52.5 mm (2.1 in)6 June 1943
Jul61.2 mm (2.4 in)19 July 1966
Aug62.3 mm (2.5 in)1 August 1917
Sep53.3 mm (2.1 in)10 September 2024
Oct63.9 mm (2.5 in)13 October 2013
Nov45.5 mm (1.8 in)27 November 1983
Dec39.3 mm (1.5 in)31 December 2017

Period of Record Coverage

1901 to 2026
Days with data per year at De Bilt 126 years of record at De Bilt, 1901 to 2026. 1 years have data for under 90 percent of days and are left out of rankings: 2026. 1901: 365 of 365 days1902: 365 of 365 days1903: 365 of 365 days1904: 366 of 366 days1905: 365 of 365 days1906: 365 of 365 days1907: 365 of 365 days1908: 366 of 366 days1909: 365 of 365 days1910: 365 of 365 days1911: 365 of 365 days1912: 366 of 366 days1913: 365 of 365 days1914: 365 of 365 days1915: 365 of 365 days1916: 366 of 366 days1917: 365 of 365 days1918: 365 of 365 days1919: 365 of 365 days1920: 366 of 366 days1921: 365 of 365 days1922: 365 of 365 days1923: 365 of 365 days1924: 366 of 366 days1925: 365 of 365 days1926: 365 of 365 days1927: 365 of 365 days1928: 366 of 366 days1929: 365 of 365 days1930: 365 of 365 days1931: 365 of 365 days1932: 366 of 366 days1933: 365 of 365 days1934: 365 of 365 days1935: 365 of 365 days1936: 366 of 366 days1937: 365 of 365 days1938: 365 of 365 days1939: 365 of 365 days1940: 366 of 366 days1941: 365 of 365 days1942: 365 of 365 days1943: 365 of 365 days1944: 366 of 366 days1945: 365 of 365 days1946: 365 of 365 days1947: 365 of 365 days1948: 366 of 366 days1949: 365 of 365 days1950: 365 of 365 days1951: 365 of 365 days1952: 366 of 366 days1953: 365 of 365 days1954: 365 of 365 days1955: 365 of 365 days1956: 366 of 366 days1957: 365 of 365 days1958: 365 of 365 days1959: 365 of 365 days1960: 366 of 366 days1961: 365 of 365 days1962: 365 of 365 days1963: 365 of 365 days1964: 366 of 366 days1965: 365 of 365 days1966: 365 of 365 days1967: 365 of 365 days1968: 366 of 366 days1969: 365 of 365 days1970: 365 of 365 days1971: 365 of 365 days1972: 366 of 366 days1973: 365 of 365 days1974: 365 of 365 days1975: 365 of 365 days1976: 366 of 366 days1977: 365 of 365 days1978: 365 of 365 days1979: 365 of 365 days1980: 366 of 366 days1981: 365 of 365 days1982: 365 of 365 days1983: 365 of 365 days1984: 366 of 366 days1985: 365 of 365 days1986: 365 of 365 days1987: 365 of 365 days1988: 366 of 366 days1989: 365 of 365 days1990: 365 of 365 days1991: 365 of 365 days1992: 366 of 366 days1993: 365 of 365 days1994: 365 of 365 days1995: 365 of 365 days1996: 366 of 366 days1997: 365 of 365 days1998: 365 of 365 days1999: 365 of 365 days2000: 366 of 366 days2001: 365 of 365 days2002: 365 of 365 days2003: 365 of 365 days2004: 366 of 366 days2005: 365 of 365 days2006: 365 of 365 days2007: 365 of 365 days2008: 366 of 366 days2009: 365 of 365 days2010: 365 of 365 days2011: 365 of 365 days2012: 366 of 366 days2013: 365 of 365 days2014: 365 of 365 days2015: 365 of 365 days2016: 366 of 366 days2017: 365 of 365 days2018: 365 of 365 days2019: 365 of 365 days2020: 366 of 366 days2021: 365 of 365 days2022: 365 of 365 days2023: 365 of 365 days2024: 366 of 366 days2025: 365 of 365 days2026: 243 of 365 days192019401960198020002020
126 years of record at De Bilt, 1901 to 2026. 1 years have data for under 90 percent of days and are left out of rankings: 2026.
Days with data per year at De Bilt
YearDays with dataShare of yearComplete
1901365100%Yes
1902365100%Yes
1903365100%Yes
1904366100%Yes
1905365100%Yes
1906365100%Yes
1907365100%Yes
1908366100%Yes
1909365100%Yes
1910365100%Yes
1911365100%Yes
1912366100%Yes
1913365100%Yes
1914365100%Yes
1915365100%Yes
1916366100%Yes
1917365100%Yes
1918365100%Yes
1919365100%Yes
1920366100%Yes
1921365100%Yes
1922365100%Yes
1923365100%Yes
1924366100%Yes
1925365100%Yes
1926365100%Yes
1927365100%Yes
1928366100%Yes
1929365100%Yes
1930365100%Yes
1931365100%Yes
1932366100%Yes
1933365100%Yes
1934365100%Yes
1935365100%Yes
1936366100%Yes
1937365100%Yes
1938365100%Yes
1939365100%Yes
1940366100%Yes
1941365100%Yes
1942365100%Yes
1943365100%Yes
1944366100%Yes
1945365100%Yes
1946365100%Yes
1947365100%Yes
1948366100%Yes
1949365100%Yes
1950365100%Yes
1951365100%Yes
1952366100%Yes
1953365100%Yes
1954365100%Yes
1955365100%Yes
1956366100%Yes
1957365100%Yes
1958365100%Yes
1959365100%Yes
1960366100%Yes
1961365100%Yes
1962365100%Yes
1963365100%Yes
1964366100%Yes
1965365100%Yes
1966365100%Yes
1967365100%Yes
1968366100%Yes
1969365100%Yes
1970365100%Yes
1971365100%Yes
1972366100%Yes
1973365100%Yes
1974365100%Yes
1975365100%Yes
1976366100%Yes
1977365100%Yes
1978365100%Yes
1979365100%Yes
1980366100%Yes
1981365100%Yes
1982365100%Yes
1983365100%Yes
1984366100%Yes
1985365100%Yes
1986365100%Yes
1987365100%Yes
1988366100%Yes
1989365100%Yes
1990365100%Yes
1991365100%Yes
1992366100%Yes
1993365100%Yes
1994365100%Yes
1995365100%Yes
1996366100%Yes
1997365100%Yes
1998365100%Yes
1999365100%Yes
2000366100%Yes
2001365100%Yes
2002365100%Yes
2003365100%Yes
2004366100%Yes
2005365100%Yes
2006365100%Yes
2007365100%Yes
2008366100%Yes
2009365100%Yes
2010365100%Yes
2011365100%Yes
2012366100%Yes
2013365100%Yes
2014365100%Yes
2015365100%Yes
2016366100%Yes
2017365100%Yes
2018365100%Yes
2019365100%Yes
2020366100%Yes
2021365100%Yes
2022365100%Yes
2023365100%Yes
2024366100%Yes
2025365100%Yes
202624367%No

Latest Records

20
Latest records at De Bilt
DateStationRecordValueBeat old record byOld record stoodSignificance
14 August 2026De Bilt, NLdaily high max35.2 C (95.4 F)3.0 C (5.4 F)4 years19 of 100 (Routine)
13 August 2026De Bilt, NLdaily high max33.1 C (91.6 F)1.0 C (1.8 F)28 years20 of 100 (Routine)
4 August 2026De Bilt, NLdaily high min17.9 C (64.2 F)0.1 C (0.2 F)32 years19 of 100 (Routine)
29 July 2026De Bilt, NLdaily high max32.9 C (91.2 F)1.4 C (2.5 F)77 years36 of 100 (Notable)
27 June 2026De Bilt, NLdaily high min20.3 C (68.5 F)0.5 C (0.9 F)79 years34 of 100 (Routine)
26 June 2026De Bilt, NLmonthly high max36.8 C (98.2 F)0.7 C (1.3 F)78 years44 of 100 (Notable)
26 June 2026De Bilt, NLdaily high min21.2 C (70.2 F)2.2 C (4.0 F)5 years18 of 100 (Routine)
25 June 2026De Bilt, NLmonthly high min21.3 C (70.3 F)1.5 C (2.7 F)78 years47 of 100 (Notable)
24 June 2026De Bilt, NLdaily high max34.0 C (93.2 F)1.4 C (2.5 F)20 years19 of 100 (Routine)
21 June 2026De Bilt, NLdaily high min18.6 C (65.5 F)0.2 C (0.4 F)89 years36 of 100 (Notable)
20 June 2026De Bilt, NLdaily high min (Tie)18.6 C (65.5 F)tie3 years2 of 100 (Routine)
29 May 2026De Bilt, NLdaily high max31.1 C (88.0 F)0.4 C (0.7 F)8 years12 of 100 (Routine)
26 May 2026De Bilt, NLdaily high max31.2 C (88.2 F)2.1 C (3.8 F)20 years20 of 100 (Routine)
5 March 2026De Bilt, NLdaily high max16.8 C (62.2 F)0.9 C (1.6 F)12 years15 of 100 (Routine)
4 March 2026De Bilt, NLdaily high max16.1 C (61.0 F)1.1 C (2.0 F)87 years38 of 100 (Notable)
3 March 2026De Bilt, NLdaily high max16.7 C (62.1 F)0.8 C (1.4 F)1 year12 of 100 (Routine)
2 March 2026De Bilt, NLdaily high max16.2 C (61.2 F)0.2 C (0.4 F)67 years30 of 100 (Routine)
27 February 2026De Bilt, NLdaily high min8.9 C (48.0 F)0.8 C (1.4 F)114 years41 of 100 (Notable)
10 January 2026De Bilt, NLdaily snow depth15.0 cm (5.9 in)7.0 cm (2.8 in)70 years45 of 100 (Notable)
9 January 2026De Bilt, NLmonthly snow depth17.0 cm (6.7 in)2.0 cm (0.8 in)67 years41 of 100 (Notable)

Climate Trend

125 complete years, 1901 to 2025
Annual mean temperature at De Bilt as warming stripes, 1901 to 2025 One stripe for each of 125 complete years at De Bilt, 1901 to 2025. Blue stripes are years cooler than the station's own mean of 9.5 C (49.1 F); red stripes are warmer. The coolest year was 1963, at 7.7 C (45.9 F), and the warmest was 2024, at 11.7 C (53.0 F). The strongest colour marks a difference of 2.2 C (4.0 F). 1901: 8.7 C, -0.9 C from the station mean1902: 8.1 C, -1.4 C from the station mean1903: 9.0 C, -0.5 C from the station mean1904: 8.7 C, -0.8 C from the station mean1905: 8.6 C, -0.9 C from the station mean1906: 9.1 C, -0.5 C from the station mean1907: 8.5 C, -1.1 C from the station mean1908: 8.4 C, -1.1 C from the station mean1909: 8.2 C, -1.3 C from the station mean1910: 9.3 C, -0.2 C from the station mean1911: 9.6 C, +0.1 C from the station mean1912: 9.0 C, -0.5 C from the station mean1913: 9.5 C, 0.0 C from the station mean1914: 9.5 C, 0.0 C from the station mean1915: 8.7 C, -0.8 C from the station mean1916: 9.1 C, -0.4 C from the station mean1917: 8.2 C, -1.4 C from the station mean1918: 9.1 C, -0.4 C from the station mean1919: 7.9 C, -1.6 C from the station mean1920: 9.2 C, -0.3 C from the station mean1921: 9.7 C, +0.2 C from the station mean1922: 8.0 C, -1.5 C from the station mean1923: 8.5 C, -1.0 C from the station mean1924: 8.4 C, -1.1 C from the station mean1925: 8.9 C, -0.6 C from the station mean1926: 9.5 C, 0.0 C from the station mean1927: 8.8 C, -0.7 C from the station mean1928: 9.1 C, -0.4 C from the station mean1929: 8.1 C, -1.4 C from the station mean1930: 9.6 C, +0.1 C from the station mean1931: 8.6 C, -0.9 C from the station mean1932: 9.2 C, -0.3 C from the station mean1933: 8.8 C, -0.7 C from the station mean1934: 10.0 C, +0.4 C from the station mean1935: 9.5 C, 0.0 C from the station mean1936: 9.3 C, -0.2 C from the station mean1937: 9.3 C, -0.2 C from the station mean1938: 9.4 C, -0.1 C from the station mean1939: 9.4 C, -0.1 C from the station mean1940: 7.9 C, -1.6 C from the station mean1941: 8.5 C, -1.0 C from the station mean1942: 8.0 C, -1.5 C from the station mean1943: 9.4 C, -0.1 C from the station mean1944: 9.3 C, -0.2 C from the station mean1945: 9.7 C, +0.2 C from the station mean1946: 8.9 C, -0.6 C from the station mean1947: 9.3 C, -0.2 C from the station mean1948: 9.6 C, +0.1 C from the station mean1949: 9.9 C, +0.3 C from the station mean1950: 9.1 C, -0.4 C from the station mean1951: 9.5 C, 0.0 C from the station mean1952: 8.8 C, -0.7 C from the station mean1953: 9.7 C, +0.2 C from the station mean1954: 8.9 C, -0.6 C from the station mean1955: 8.7 C, -0.8 C from the station mean1956: 8.1 C, -1.5 C from the station mean1957: 9.9 C, +0.4 C from the station mean1958: 9.4 C, -0.2 C from the station mean1959: 10.0 C, +0.5 C from the station mean1960: 9.7 C, +0.2 C from the station mean1961: 9.9 C, +0.3 C from the station mean1962: 8.0 C, -1.5 C from the station mean1963: 7.7 C, -1.8 C from the station mean1964: 9.0 C, -0.5 C from the station mean1965: 8.7 C, -0.8 C from the station mean1966: 9.4 C, -0.1 C from the station mean1967: 9.8 C, +0.3 C from the station mean1968: 9.1 C, -0.4 C from the station mean1969: 9.2 C, -0.3 C from the station mean1970: 9.1 C, -0.4 C from the station mean1971: 9.4 C, -0.2 C from the station mean1972: 8.8 C, -0.7 C from the station mean1973: 9.2 C, -0.3 C from the station mean1974: 9.6 C, +0.1 C from the station mean1975: 9.8 C, +0.3 C from the station mean1976: 9.9 C, +0.4 C from the station mean1977: 9.8 C, +0.3 C from the station mean1978: 9.0 C, -0.6 C from the station mean1979: 8.4 C, -1.1 C from the station mean1980: 9.2 C, -0.3 C from the station mean1981: 9.1 C, -0.4 C from the station mean1982: 10.0 C, +0.5 C from the station mean1983: 10.1 C, +0.6 C from the station mean1984: 9.5 C, 0.0 C from the station mean1985: 8.5 C, -1.0 C from the station mean1986: 8.9 C, -0.6 C from the station mean1987: 8.8 C, -0.7 C from the station mean1988: 10.3 C, +0.8 C from the station mean1989: 10.7 C, +1.2 C from the station mean1990: 10.8 C, +1.3 C from the station mean1991: 9.4 C, -0.1 C from the station mean1992: 10.5 C, +1.0 C from the station mean1993: 9.5 C, 0.0 C from the station mean1994: 10.5 C, +1.0 C from the station mean1995: 10.4 C, +0.9 C from the station mean1996: 8.4 C, -1.1 C from the station mean1997: 10.2 C, +0.7 C from the station mean1998: 10.4 C, +0.8 C from the station mean1999: 10.8 C, +1.3 C from the station mean2000: 10.8 C, +1.3 C from the station mean2001: 10.3 C, +0.8 C from the station mean2002: 10.6 C, +1.1 C from the station mean2003: 10.2 C, +0.7 C from the station mean2004: 10.2 C, +0.7 C from the station mean2005: 10.6 C, +1.1 C from the station mean2006: 11.1 C, +1.6 C from the station mean2007: 11.1 C, +1.6 C from the station mean2008: 10.5 C, +1.0 C from the station mean2009: 10.4 C, +0.8 C from the station mean2010: 8.9 C, -0.6 C from the station mean2011: 10.8 C, +1.3 C from the station mean2012: 10.2 C, +0.7 C from the station mean2013: 9.6 C, +0.1 C from the station mean2014: 11.6 C, +2.1 C from the station mean2015: 10.6 C, +1.1 C from the station mean2016: 10.6 C, +1.1 C from the station mean2017: 10.8 C, +1.3 C from the station mean2018: 11.2 C, +1.7 C from the station mean2019: 11.0 C, +1.5 C from the station mean2020: 11.5 C, +2.0 C from the station mean2021: 10.3 C, +0.8 C from the station mean2022: 11.2 C, +1.7 C from the station mean2023: 11.6 C, +2.1 C from the station mean2024: 11.7 C, +2.1 C from the station mean2025: 11.2 C, +1.7 C from the station mean1901191019201930194019501960197019801990200020102020
One stripe for each of 125 complete years at De Bilt, 1901 to 2025. Blue stripes are years cooler than the station's own mean of 9.5 C (49.1 F); red stripes are warmer. The coolest year was 1963, at 7.7 C (45.9 F), and the warmest was 2024, at 11.7 C (53.0 F). The strongest colour marks a difference of 2.2 C (4.0 F).
Annual mean temperature at De Bilt as warming stripes, 1901 to 2025
YearAnnual mean temperatureDifference from the station mean
19018.7 C-0.86 C
19028.1 C-1.38 C
19039.0 C-0.50 C
19048.7 C-0.77 C
19058.6 C-0.92 C
19069.1 C-0.46 C
19078.5 C-1.06 C
19088.4 C-1.13 C
19098.2 C-1.31 C
19109.3 C-0.19 C
19119.6 C+0.12 C
19129.0 C-0.48 C
19139.5 C-0.03 C
19149.5 C+0.00 C
19158.7 C-0.83 C
19169.1 C-0.45 C
19178.2 C-1.36 C
19189.1 C-0.38 C
19197.9 C-1.57 C
19209.2 C-0.31 C
19219.7 C+0.20 C
19228.0 C-1.48 C
19238.5 C-1.00 C
19248.4 C-1.10 C
19258.9 C-0.58 C
19269.5 C-0.01 C
19278.8 C-0.74 C
19289.1 C-0.38 C
19298.1 C-1.38 C
19309.6 C+0.11 C
19318.6 C-0.90 C
19329.2 C-0.33 C
19338.8 C-0.73 C
193410.0 C+0.44 C
19359.5 C-0.01 C
19369.3 C-0.24 C
19379.3 C-0.21 C
19389.4 C-0.09 C
19399.4 C-0.10 C
19407.9 C-1.64 C
19418.5 C-1.00 C
19428.0 C-1.47 C
19439.4 C-0.09 C
19449.3 C-0.22 C
19459.7 C+0.21 C
19468.9 C-0.62 C
19479.3 C-0.24 C
19489.6 C+0.13 C
19499.9 C+0.34 C
19509.1 C-0.41 C
19519.5 C+0.02 C
19528.8 C-0.74 C
19539.7 C+0.19 C
19548.9 C-0.61 C
19558.7 C-0.79 C
19568.1 C-1.46 C
19579.9 C+0.37 C
19589.4 C-0.16 C
195910.0 C+0.52 C
19609.7 C+0.15 C
19619.9 C+0.34 C
19628.0 C-1.47 C
19637.7 C-1.80 C
19649.0 C-0.47 C
19658.7 C-0.85 C
19669.4 C-0.15 C
19679.8 C+0.32 C
19689.1 C-0.38 C
19699.2 C-0.32 C
19709.1 C-0.45 C
19719.4 C-0.16 C
19728.8 C-0.68 C
19739.2 C-0.29 C
19749.6 C+0.10 C
19759.8 C+0.32 C
19769.9 C+0.35 C
19779.8 C+0.26 C
19789.0 C-0.56 C
19798.4 C-1.09 C
19809.2 C-0.30 C
19819.1 C-0.38 C
198210.0 C+0.50 C
198310.1 C+0.57 C
19849.5 C-0.03 C
19858.5 C-1.02 C
19868.9 C-0.60 C
19878.8 C-0.71 C
198810.3 C+0.80 C
198910.7 C+1.18 C
199010.8 C+1.26 C
19919.4 C-0.15 C
199210.5 C+0.98 C
19939.5 C+0.02 C
199410.5 C+0.97 C
199510.4 C+0.86 C
19968.4 C-1.07 C
199710.2 C+0.66 C
199810.4 C+0.84 C
199910.8 C+1.30 C
200010.8 C+1.29 C
200110.3 C+0.78 C
200210.6 C+1.11 C
200310.2 C+0.65 C
200410.2 C+0.71 C
200510.6 C+1.08 C
200611.1 C+1.59 C
200711.1 C+1.61 C
200810.5 C+0.96 C
200910.4 C+0.84 C
20108.9 C-0.60 C
201110.8 C+1.32 C
201210.2 C+0.68 C
20139.6 C+0.11 C
201411.6 C+2.10 C
201510.6 C+1.13 C
201610.6 C+1.06 C
201710.8 C+1.25 C
201811.2 C+1.65 C
201911.0 C+1.49 C
202011.5 C+1.95 C
202110.3 C+0.76 C
202211.2 C+1.72 C
202311.6 C+2.10 C
202411.7 C+2.14 C
202511.2 C+1.68 C

The annual mean temperature here has risen by 0.2 C (0.1 to 0.2) per decade over 1901 to 2025. In Fahrenheit: 0.3 F (0.3 to 0.4) per decade. The slope is a straight line fitted to 125 complete years; the brackets give its 95 percent interval.

Fitted temperature trends per decade at De Bilt
MeasurePer decade (C)Per decade (F)PeriodComplete yearsReading
Annual mean temperature0.2 C (0.1 to 0.2) per decade0.3 F (0.3 to 0.4) per decade1901 to 2025125Rise
Mean daily maximum0.2 C (0.2 to 0.2) per decade0.3 F (0.3 to 0.4) per decade1901 to 2025125Rise
Mean daily minimum0.2 C (0.1 to 0.2) per decade0.3 F (0.3 to 0.4) per decade1901 to 2025125Rise

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

1901 to 2026
Yearly extremes at De Bilt: the record and the median year
MeasureRecordYear of the recordMedian yearYears with a value
Hottest day (TXx)37.5 C (99.5 F)201931.7 C (89.0 F)126
Coldest night (TNn)-24.8 C (-12.6 F)1942-10.6 C (12.9 F)126
Wettest day (Rx1day)63.9 mm (2.5 in)201331.2 mm (1.2 in)122
Wettest five days (Rx5day)127.9 mm (5.0 in)201159.8 mm (2.4 in)121
Longest dry spell (CDD)49 days201820 days122

Hottest day (TXx)

Hottest day (TXx) at De Bilt by year The hottest day of the year at De Bilt, 1901 to 2026. The record is 37.5 C (99.5 F) in 2019, marked on the chart; the median year is 31.7 C (89.0 F). 25303540192019401960198020002020Record: 37.5 C (99.5 F) in 2019
The hottest day of the year at De Bilt, 1901 to 2026. The record is 37.5 C (99.5 F) in 2019, marked on the chart; the median year is 31.7 C (89.0 F).
Hottest day (TXx) at De Bilt by year
YearHottest day (TXx)
190131.3 C (88.3 F)
190231.9 C (89.4 F)
190330.1 C (86.2 F)
190431.7 C (89.1 F)
190529.9 C (85.8 F)
190629.6 C (85.3 F)
190729.2 C (84.6 F)
190829.2 C (84.6 F)
190927.8 C (82.0 F)
191030.4 C (86.7 F)
191134.9 C (94.8 F)
191230.8 C (87.4 F)
191328.7 C (83.7 F)
191429.2 C (84.6 F)
191532.6 C (90.7 F)
191629.4 C (84.9 F)
191731.7 C (89.1 F)
191831.5 C (88.7 F)
191931.8 C (89.2 F)
192027.1 C (80.8 F)
192131.4 C (88.5 F)
192232.9 C (91.2 F)
192334.1 C (93.4 F)
192429.7 C (85.5 F)
192533.5 C (92.3 F)
192630.9 C (87.6 F)
192729.3 C (84.7 F)
192831.7 C (89.1 F)
192932.0 C (89.6 F)
193032.1 C (89.8 F)
193129.0 C (84.2 F)
193232.5 C (90.5 F)
193333.3 C (91.9 F)
193430.5 C (86.9 F)
193530.4 C (86.7 F)
193631.4 C (88.5 F)
193732.2 C (90.0 F)
193832.5 C (90.5 F)
193932.1 C (89.8 F)
194028.6 C (83.5 F)
194133.2 C (91.8 F)
194231.5 C (88.7 F)
194329.8 C (85.6 F)
194434.0 C (93.2 F)
194531.4 C (88.5 F)
194632.2 C (90.0 F)
194736.1 C (97.0 F)
194832.3 C (90.1 F)
194933.5 C (92.3 F)
195031.4 C (88.5 F)
195128.6 C (83.5 F)
195230.9 C (87.6 F)
195330.9 C (87.6 F)
195429.2 C (84.6 F)
195530.5 C (86.9 F)
195628.5 C (83.3 F)
195734.2 C (93.6 F)
195828.2 C (82.8 F)
195934.0 C (93.2 F)
196027.7 C (81.9 F)
196132.2 C (90.0 F)
196227.0 C (80.6 F)
196328.7 C (83.7 F)
196431.7 C (89.1 F)
196527.6 C (81.7 F)
196630.9 C (87.6 F)
196731.3 C (88.3 F)
196830.6 C (87.1 F)
196931.1 C (88.0 F)
197029.4 C (84.9 F)
197129.5 C (85.1 F)
197231.4 C (88.5 F)
197331.7 C (89.1 F)
197426.5 C (79.7 F)
197532.9 C (91.2 F)
197634.9 C (94.8 F)
197730.8 C (87.4 F)
197832.1 C (89.8 F)
197929.9 C (85.8 F)
198029.3 C (84.7 F)
198129.2 C (84.6 F)
198232.1 C (89.8 F)
198333.2 C (91.8 F)
198430.5 C (86.9 F)
198530.1 C (86.2 F)
198630.7 C (87.3 F)
198729.4 C (84.9 F)
198828.0 C (82.4 F)
198932.2 C (90.0 F)
199035.3 C (95.5 F)
199132.4 C (90.3 F)
199230.9 C (87.6 F)
199329.0 C (84.2 F)
199434.1 C (93.4 F)
199532.4 C (90.3 F)
199633.9 C (93.0 F)
199732.1 C (89.8 F)
199832.0 C (89.6 F)
199931.4 C (88.5 F)
200033.6 C (92.5 F)
200131.6 C (88.9 F)
200233.3 C (91.9 F)
200335.0 C (95.0 F)
200432.5 C (90.5 F)
200532.8 C (91.0 F)
200635.7 C (96.3 F)
200731.5 C (88.7 F)
200831.2 C (88.2 F)
200933.8 C (92.8 F)
201034.4 C (93.9 F)
201132.2 C (90.0 F)
201233.0 C (91.4 F)
201334.0 C (93.2 F)
201432.9 C (91.2 F)
201533.1 C (91.6 F)
201632.9 C (91.2 F)
201731.9 C (89.4 F)
201835.7 C (96.3 F)
201937.5 C (99.5 F)
202034.6 C (94.3 F)
202130.8 C (87.4 F)
202235.5 C (95.9 F)
202332.2 C (90.0 F)
202430.9 C (87.6 F)
202535.5 C (95.9 F)
202636.8 C (98.2 F)

Coldest night (TNn)

Coldest night (TNn) at De Bilt by year The coldest night of the year at De Bilt, 1901 to 2026. The record is -24.8 C (-12.6 F) in 1942, marked on the chart; the median year is -10.6 C (12.9 F). -30-20-100192019401960198020002020Record: -24.8 C (-12.6 F) in 1942
The coldest night of the year at De Bilt, 1901 to 2026. The record is -24.8 C (-12.6 F) in 1942, marked on the chart; the median year is -10.6 C (12.9 F).
Coldest night (TNn) at De Bilt by year
YearColdest night (TNn)
1901-13.1 C (8.4 F)
1902-14.5 C (5.9 F)
1903-8.2 C (17.2 F)
1904-6.7 C (19.9 F)
1905-12.4 C (9.7 F)
1906-11.1 C (12.0 F)
1907-13.6 C (7.5 F)
1908-15.8 C (3.6 F)
1909-10.3 C (13.5 F)
1910-8.1 C (17.4 F)
1911-9.4 C (15.1 F)
1912-20.1 C (-4.2 F)
1913-8.3 C (17.1 F)
1914-11.6 C (11.1 F)
1915-8.7 C (16.3 F)
1916-4.3 C (24.3 F)
1917-16.5 C (2.3 F)
1918-7.3 C (18.9 F)
1919-13.1 C (8.4 F)
1920-11.2 C (11.8 F)
1921-15.9 C (3.4 F)
1922-14.0 C (6.8 F)
1923-16.6 C (2.1 F)
1924-10.6 C (12.9 F)
1925-15.0 C (5.0 F)
1926-12.9 C (8.8 F)
1927-14.3 C (6.3 F)
1928-6.2 C (20.8 F)
1929-18.9 C (-2.0 F)
1930-5.6 C (21.9 F)
1931-11.2 C (11.8 F)
1932-8.4 C (16.9 F)
1933-13.1 C (8.4 F)
1934-8.4 C (16.9 F)
1935-6.1 C (21.0 F)
1936-10.3 C (13.5 F)
1937-8.3 C (17.1 F)
1938-14.8 C (5.4 F)
1939-10.5 C (13.1 F)
1940-16.7 C (1.9 F)
1941-11.4 C (11.5 F)
1942-24.8 C (-12.6 F)
1943-7.9 C (17.8 F)
1944-9.6 C (14.7 F)
1945-13.4 C (7.9 F)
1946-15.3 C (4.5 F)
1947-13.7 C (7.3 F)
1948-10.3 C (13.5 F)
1949-9.4 C (15.1 F)
1950-13.3 C (8.1 F)
1951-7.4 C (18.7 F)
1952-7.1 C (19.2 F)
1953-8.1 C (17.4 F)
1954-13.0 C (8.6 F)
1955-10.5 C (13.1 F)
1956-21.6 C (-6.9 F)
1957-10.1 C (13.8 F)
1958-11.2 C (11.8 F)
1959-7.6 C (18.3 F)
1960-9.4 C (15.1 F)
1961-11.7 C (10.9 F)
1962-11.5 C (11.3 F)
1963-18.2 C (-0.8 F)
1964-12.7 C (9.1 F)
1965-10.0 C (14.0 F)
1966-11.2 C (11.8 F)
1967-12.4 C (9.7 F)
1968-16.8 C (1.8 F)
1969-16.4 C (2.5 F)
1970-12.0 C (10.4 F)
1971-14.0 C (6.8 F)
1972-11.9 C (10.6 F)
1973-13.4 C (7.9 F)
1974-5.8 C (21.6 F)
1975-7.8 C (18.0 F)
1976-10.6 C (12.9 F)
1977-5.3 C (22.5 F)
1978-13.2 C (8.2 F)
1979-17.7 C (0.1 F)
1980-11.0 C (12.2 F)
1981-12.3 C (9.9 F)
1982-13.6 C (7.5 F)
1983-7.6 C (18.3 F)
1984-8.8 C (16.2 F)
1985-18.3 C (-0.9 F)
1986-14.6 C (5.7 F)
1987-15.2 C (4.6 F)
1988-6.3 C (20.7 F)
1989-6.6 C (20.1 F)
1990-3.8 C (25.2 F)
1991-12.5 C (9.5 F)
1992-9.3 C (15.3 F)
1993-10.3 C (13.5 F)
1994-10.1 C (13.8 F)
1995-12.5 C (9.5 F)
1996-14.1 C (6.6 F)
1997-16.0 C (3.2 F)
1998-10.2 C (13.6 F)
1999-10.3 C (13.5 F)
2000-7.7 C (18.1 F)
2001-9.0 C (15.8 F)
2002-8.7 C (16.3 F)
2003-10.6 C (12.9 F)
2004-7.8 C (18.0 F)
2005-14.4 C (6.1 F)
2006-7.3 C (18.9 F)
2007-6.9 C (19.6 F)
2008-8.7 C (16.3 F)
2009-11.5 C (11.3 F)
2010-11.1 C (12.0 F)
2011-6.4 C (20.5 F)
2012-18.9 C (-2.0 F)
2013-12.9 C (8.8 F)
2014-3.3 C (26.1 F)
2015-5.7 C (21.7 F)
2016-8.0 C (17.6 F)
2017-7.4 C (18.7 F)
2018-8.5 C (16.7 F)
2019-8.1 C (17.4 F)
2020-4.3 C (24.3 F)
2021-10.9 C (12.4 F)
2022-7.7 C (18.1 F)
2023-5.8 C (21.6 F)
2024-7.6 C (18.3 F)
2025-5.5 C (22.1 F)
2026-9.6 C (14.7 F)

Wettest day (Rx1day)

Wettest day (Rx1day) at De Bilt by year The wettest day of the year at De Bilt, 1901 to 2026. The record is 63.9 mm (2.5 in) in 2013, marked on the chart; the median year is 31.2 mm (1.2 in). 020406080192019401960198020002020Record: 63.9 mm (2.5 in) in 2013
The wettest day of the year at De Bilt, 1901 to 2026. The record is 63.9 mm (2.5 in) in 2013, marked on the chart; the median year is 31.2 mm (1.2 in).
Wettest day (Rx1day) at De Bilt by year
YearWettest day (Rx1day)
1901n/a
1902n/a
1903n/a
1904n/a
19050.0 mm (0.00 in)
190636.1 mm (1.4 in)
190719.5 mm (0.8 in)
190825.4 mm (1.0 in)
190929.1 mm (1.1 in)
191030.6 mm (1.2 in)
191124.1 mm (0.9 in)
191233.1 mm (1.3 in)
191331.2 mm (1.2 in)
191427.0 mm (1.1 in)
191528.6 mm (1.1 in)
191621.7 mm (0.9 in)
191762.3 mm (2.5 in)
191840.3 mm (1.6 in)
191924.5 mm (1.0 in)
192031.8 mm (1.3 in)
192125.2 mm (1.0 in)
192224.0 mm (0.9 in)
192322.7 mm (0.9 in)
192433.7 mm (1.3 in)
192526.9 mm (1.1 in)
192624.2 mm (1.0 in)
192729.7 mm (1.2 in)
192836.4 mm (1.4 in)
192932.2 mm (1.3 in)
193047.5 mm (1.9 in)
193155.2 mm (2.2 in)
193242.8 mm (1.7 in)
193321.8 mm (0.9 in)
193437.9 mm (1.5 in)
193527.1 mm (1.1 in)
193633.8 mm (1.3 in)
193722.7 mm (0.9 in)
193828.2 mm (1.1 in)
193930.4 mm (1.2 in)
194034.3 mm (1.4 in)
194129.7 mm (1.2 in)
194253.6 mm (2.1 in)
194352.5 mm (2.1 in)
194430.5 mm (1.2 in)
194528.2 mm (1.1 in)
194653.9 mm (2.1 in)
194737.4 mm (1.5 in)
194845.6 mm (1.8 in)
194929.3 mm (1.2 in)
195034.2 mm (1.3 in)
195130.1 mm (1.2 in)
195252.2 mm (2.1 in)
195346.7 mm (1.8 in)
195428.4 mm (1.1 in)
195527.7 mm (1.1 in)
195637.8 mm (1.5 in)
195731.2 mm (1.2 in)
195824.7 mm (1.0 in)
195922.3 mm (0.9 in)
196055.9 mm (2.2 in)
196149.6 mm (2.0 in)
196228.3 mm (1.1 in)
196325.4 mm (1.0 in)
196442.7 mm (1.7 in)
196531.2 mm (1.2 in)
196661.2 mm (2.4 in)
196734.5 mm (1.4 in)
196830.1 mm (1.2 in)
196931.6 mm (1.2 in)
197032.8 mm (1.3 in)
197121.3 mm (0.8 in)
197225.3 mm (1.0 in)
197334.5 mm (1.4 in)
197433.2 mm (1.3 in)
197532.7 mm (1.3 in)
197628.2 mm (1.1 in)
197728.4 mm (1.1 in)
197825.4 mm (1.0 in)
197935.4 mm (1.4 in)
198026.3 mm (1.0 in)
198126.3 mm (1.0 in)
198232.1 mm (1.3 in)
198345.5 mm (1.8 in)
198430.0 mm (1.2 in)
198535.9 mm (1.4 in)
198632.1 mm (1.3 in)
198736.6 mm (1.4 in)
198823.2 mm (0.9 in)
198927.5 mm (1.1 in)
199024.1 mm (0.9 in)
199128.2 mm (1.1 in)
199229.7 mm (1.2 in)
199334.3 mm (1.4 in)
199437.1 mm (1.5 in)
199537.2 mm (1.5 in)
199623.1 mm (0.9 in)
199731.0 mm (1.2 in)
199848.3 mm (1.9 in)
199929.9 mm (1.2 in)
200027.7 mm (1.1 in)
200129.6 mm (1.2 in)
200226.4 mm (1.0 in)
200327.0 mm (1.1 in)
200430.7 mm (1.2 in)
200542.5 mm (1.7 in)
200625.2 mm (1.0 in)
200740.9 mm (1.6 in)
200837.5 mm (1.5 in)
200925.6 mm (1.0 in)
201050.6 mm (2.0 in)
201158.9 mm (2.3 in)
201222.5 mm (0.9 in)
201363.9 mm (2.5 in)
201443.6 mm (1.7 in)
201541.1 mm (1.6 in)
201649.5 mm (1.9 in)
201739.3 mm (1.5 in)
201827.2 mm (1.1 in)
201940.8 mm (1.6 in)
202031.7 mm (1.2 in)
202125.2 mm (1.0 in)
202242.8 mm (1.7 in)
202340.0 mm (1.6 in)
202453.3 mm (2.1 in)
202535.8 mm (1.4 in)
202623.3 mm (0.9 in)

Wettest five days (Rx5day)

Wettest five days (Rx5day) at De Bilt by year The wettest five days of the year at De Bilt, 1901 to 2026. The record is 127.9 mm (5.0 in) in 2011, marked on the chart; the median year is 59.8 mm (2.4 in). 255075100125150192019401960198020002020Record: 127.9 mm (5.0 in) in 2011
The wettest five days of the year at De Bilt, 1901 to 2026. The record is 127.9 mm (5.0 in) in 2011, marked on the chart; the median year is 59.8 mm (2.4 in).
Wettest five days (Rx5day) at De Bilt by year
YearWettest five days (Rx5day)
1901n/a
1902n/a
1903n/a
1904n/a
1905n/a
190646.1 mm (1.8 in)
190741.2 mm (1.6 in)
190847.0 mm (1.9 in)
190957.0 mm (2.2 in)
191063.8 mm (2.5 in)
191143.2 mm (1.7 in)
191290.0 mm (3.5 in)
191354.3 mm (2.1 in)
191456.0 mm (2.2 in)
191552.9 mm (2.1 in)
191658.9 mm (2.3 in)
191794.6 mm (3.7 in)
191873.6 mm (2.9 in)
191960.9 mm (2.4 in)
192087.2 mm (3.4 in)
192130.5 mm (1.2 in)
192237.1 mm (1.5 in)
192347.9 mm (1.9 in)
192458.4 mm (2.3 in)
192569.0 mm (2.7 in)
192671.5 mm (2.8 in)
192758.3 mm (2.3 in)
192859.6 mm (2.3 in)
192973.7 mm (2.9 in)
193068.3 mm (2.7 in)
193160.7 mm (2.4 in)
193257.3 mm (2.3 in)
193333.7 mm (1.3 in)
193463.8 mm (2.5 in)
193552.9 mm (2.1 in)
193658.4 mm (2.3 in)
193739.1 mm (1.5 in)
193866.1 mm (2.6 in)
193951.9 mm (2.0 in)
194071.3 mm (2.8 in)
194158.4 mm (2.3 in)
194279.8 mm (3.1 in)
194381.6 mm (3.2 in)
194453.6 mm (2.1 in)
194557.9 mm (2.3 in)
194679.4 mm (3.1 in)
194764.1 mm (2.5 in)
194872.8 mm (2.9 in)
194955.3 mm (2.2 in)
195053.2 mm (2.1 in)
195156.3 mm (2.2 in)
195266.4 mm (2.6 in)
195372.3 mm (2.8 in)
195458.9 mm (2.3 in)
195549.8 mm (2.0 in)
195651.5 mm (2.0 in)
195777.7 mm (3.1 in)
195846.3 mm (1.8 in)
195938.7 mm (1.5 in)
1960112.5 mm (4.4 in)
196184.7 mm (3.3 in)
196254.5 mm (2.1 in)
196370.2 mm (2.8 in)
196452.2 mm (2.1 in)
196572.5 mm (2.9 in)
196688.7 mm (3.5 in)
196754.6 mm (2.1 in)
196857.8 mm (2.3 in)
196988.9 mm (3.5 in)
197067.0 mm (2.6 in)
197156.9 mm (2.2 in)
197250.6 mm (2.0 in)
197369.9 mm (2.8 in)
197447.4 mm (1.9 in)
197540.2 mm (1.6 in)
197643.2 mm (1.7 in)
197760.1 mm (2.4 in)
197848.5 mm (1.9 in)
197969.2 mm (2.7 in)
198060.6 mm (2.4 in)
198184.3 mm (3.3 in)
198272.9 mm (2.9 in)
198378.0 mm (3.1 in)
198454.5 mm (2.1 in)
198553.9 mm (2.1 in)
198682.7 mm (3.3 in)
198764.6 mm (2.5 in)
198858.6 mm (2.3 in)
198961.6 mm (2.4 in)
199047.9 mm (1.9 in)
199161.3 mm (2.4 in)
199277.9 mm (3.1 in)
199363.5 mm (2.5 in)
199475.6 mm (3.0 in)
199566.6 mm (2.6 in)
199647.3 mm (1.9 in)
199770.7 mm (2.8 in)
199892.0 mm (3.6 in)
199953.3 mm (2.1 in)
200048.4 mm (1.9 in)
200177.7 mm (3.1 in)
200265.6 mm (2.6 in)
200359.8 mm (2.4 in)
200456.6 mm (2.2 in)
200582.0 mm (3.2 in)
200659.2 mm (2.3 in)
200787.1 mm (3.4 in)
200859.8 mm (2.4 in)
200954.9 mm (2.2 in)
201094.3 mm (3.7 in)
2011127.9 mm (5.0 in)
201252.2 mm (2.1 in)
2013119.6 mm (4.7 in)
201453.2 mm (2.1 in)
201549.5 mm (1.9 in)
201672.9 mm (2.9 in)
201758.3 mm (2.3 in)
201861.7 mm (2.4 in)
201955.0 mm (2.2 in)
202060.7 mm (2.4 in)
202158.8 mm (2.3 in)
202261.6 mm (2.4 in)
202392.6 mm (3.6 in)
202482.7 mm (3.3 in)
202589.7 mm (3.5 in)
202647.2 mm (1.9 in)

Longest dry spell (CDD)

Longest dry spell (CDD) at De Bilt by year The longest dry spell of the year at De Bilt, 1901 to 2026. The record is 49 days in 2018, marked on the chart; the median year is 20 days. 0204060192019401960198020002020Record: 49 days in 2018
The longest dry spell of the year at De Bilt, 1901 to 2026. The record is 49 days in 2018, marked on the chart; the median year is 20 days.
Longest dry spell (CDD) at De Bilt by year
YearLongest dry spell (CDD)
1901n/a
1902n/a
1903n/a
1904n/a
19051 day
190619 days
190718 days
190824 days
190914 days
191019 days
191134 days
191219 days
191318 days
191416 days
191514 days
191628 days
191718 days
191817 days
191931 days
192025 days
192131 days
192224 days
192319 days
192416 days
192515 days
192615 days
192718 days
192821 days
192927 days
193024 days
193122 days
193221 days
193332 days
193425 days
193518 days
193632 days
193718 days
193817 days
193924 days
194020 days
194117 days
194230 days
194331 days
194420 days
194514 days
194615 days
194732 days
194830 days
194920 days
195016 days
195119 days
195217 days
195324 days
195417 days
195515 days
195615 days
195715 days
195818 days
195931 days
196014 days
196117 days
196223 days
196327 days
196418 days
196514 days
196615 days
196714 days
196816 days
196921 days
197025 days
197123 days
197221 days
197324 days
197429 days
197518 days
197622 days
197718 days
197815 days
197910 days
198028 days
198123 days
198217 days
198323 days
198426 days
198527 days
198634 days
198728 days
198817 days
198918 days
199019 days
199126 days
199219 days
199316 days
199416 days
199528 days
199631 days
199720 days
199817 days
199919 days
200016 days
200119 days
200223 days
200328 days
200422 days
200516 days
200616 days
200746 days
200817 days
200914 days
201022 days
201123 days
201232 days
201323 days
201423 days
201517 days
201618 days
201714 days
201849 days
201920 days
202021 days
202117 days
202233 days
202338 days
202412 days
202544 days
202623 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

125 years with a frost

Across 125 years with a frost, the median last spring frost at De Bilt falls on 25 April and the median first autumn frost on 30 October, which leaves a median of 191 days between them.

In 1996 to 2025 the median growing season was 202 days. That is 22 days more than in 1901 to 1930.

Fitted over all years, the growing season changes by +2.4 days per decade at this station.

Frost dates and growing season at De Bilt
MeasureMedian, all yearsEarliest period (1901 to 1930)Recent period (1996 to 2025)Recent against earliestFitted trend
Last spring frost25 April30 April20 April10 days earlier-0.9 days per decade
First autumn frost30 October22 October11 November20 days later+1.4 days per decade
Growing days191 days180 days202 days22 days more+2.4 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

120 years, 1906 to 2025

A day with at least 31.9 mm (1.3 in) of rain is expected about once in 2 years. A day with at least 71.7 mm (2.8 in) of rain is expected about once in 100 years.

Rainfall return levels at De Bilt: the daily rain expected about once in a given number of years
Expected about once inA day with at leastNote
2 years31.9 mm (1.3 in)
5 years40.6 mm (1.6 in)
10 years47.1 mm (1.9 in)
25 years56.2 mm (2.2 in)
50 years63.6 mm (2.5 in)
100 years71.7 mm (2.8 in)

The levels come from a generalised extreme value (GEV) distribution fitted by L-moments to the wettest-day total of each year, 120 years of values from 1906 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: 63.9 mm (2.5 in) in 2013; 62.3 mm (2.5 in) in 1917; 61.2 mm (2.4 in) in 1966.

Station Changes

2 suspected

2 changes were suspected in the annual mean temperature of De Bilt, at 1977 and 2016. Each is measured against neighbouring stations.

  • Relative to 5 neighbouring stations, the station's annual mean temperature from 1977 ran 0.1 C (0.1 F) higher than in the years before (likely change).
  • Relative to 5 neighbouring stations, the station's annual mean temperature from 2016 ran 0.2 C (0.3 F) lower than in the years before (likely change).
Suspected changes in the annual mean temperature at De Bilt, against neighbouring stations
YearShift (C)Shift (F)StrengthNeighbours
1977+0.1+0.1likely5
2016-0.2-0.3likely5

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 1990

Over 2011 to 2025, De Bilt had a mean temperature of 10.9 C (51.7 F) and 873.5 mm (34.4 in) of rain a year. The 3 stations whose 1961 to 1990 climate was closest to that are Seattle Tacoma AP (United States, 7,876 km away), La Grande (United States, 7,934 km away) and Limoges - Bellegarde (France, 752 km away).

Climate twins of De Bilt: stations whose 1961 to 1990 climate is closest to its 2011 to 2025 climate
Twin stationCountryDistance awayMean temperature, 1961-1990Rain a year, 1961-1990Climate difference
Seattle Tacoma APUnited States7,876 km (4,894 mi)11.1 C (52.0 F)945.3 mm (37.2 in)0.80
La GrandeUnited States7,934 km (4,930 mi)10.7 C (51.3 F)957.5 mm (37.7 in)0.80
Limoges - BellegardeFrance752 km (467 mi)10.9 C (51.5 F)1,022.9 mm (40.3 in)0.81

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

  • Data for De Bilt standing records by year: CSV or JSON. Field meanings are on the data page.
  • Data for De Bilt threshold days by year: CSV or JSON. Field meanings are on the data page.

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).