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Den Helder Weather Records (NLE00100514)

Record envelope, standing records and threshold days for Den Helder (NLE00100514), Netherlands, with 67 years of record.

Key Facts for Den Helder

  • Den Helder (NLE00100514) is a weather station in Netherlands at 52.96 latitude and 4.75 longitude, 4 m (13 ft) above sea level.
  • The station reports from 1906 to 1972, 67 years of record.
  • 1,464 records set at Den Helder still stand.
  • Records are tracked for tmax, tmin: an element needs 30 years of data to be eligible.
  • Den Helder set a daily record high minimum temperature of 8.0 C (46.4 F) on 2 April 1972.

About the Station

  • Location: Netherlands, 52.96 latitude, 4.75 longitude.
  • Elevation: 4 m (13 ft).
  • Period of record: 1906 to 1972, 67 years.
  • Eligible elements: tmax, tmin.

Daily Record Envelope and 2026

0 days at or beyond a record
Daily record high and record low at Den Helder, with 2026 drawn through them The band shows the record high and record low for each calendar day at Den Helder. The lines show the 2026 daily maximum and minimum. 0 days in 2026 matched or passed a record. Temperatures are in degrees Celsius. -2002040 JanFebMarAprMayJunJulAugSepOctNovDec
The band shows the record high and record low for each calendar day at Den Helder. The lines show the 2026 daily maximum and minimum. 0 days in 2026 matched or passed a record. Temperatures are in degrees Celsius.
Daily record high and record low at Den Helder, with 2026 drawn through them
MonthHighest record highLowest record low2026 highest maximum2026 lowest minimum
Jan12.4 C (54.3 F)-14.1 C (6.6 F)n/an/a
Feb14.9 C (58.8 F)-18.5 C (-1.3 F)n/an/a
Mar19.9 C (67.8 F)-14.5 C (5.9 F)n/an/a
Apr23.6 C (74.5 F)-3.6 C (25.5 F)n/an/a
May28.9 C (84.0 F)-2.1 C (28.2 F)n/an/a
Jun31.0 C (87.8 F)2.0 C (35.6 F)n/an/a
Jul33.9 C (93.0 F)6.8 C (44.2 F)n/an/a
Aug30.8 C (87.4 F)6.4 C (43.5 F)n/an/a
Sep32.6 C (90.7 F)3.0 C (37.4 F)n/an/a
Oct24.8 C (76.6 F)-4.6 C (23.7 F)n/an/a
Nov17.3 C (63.1 F)-10.8 C (12.6 F)n/an/a
Dec13.0 C (55.4 F)-12.3 C (9.9 F)n/an/a

Which Years Hold Standing Records

1,464 standing records
Standing records at Den Helder by the year they were set 1,464 records at Den Helder still stand. 1947 holds the most, with 61. 0204060801906: 211907: 221908: 341909: 201910: 171911: 191912: 461913: 381914: 81915: 201916: 231917: 261918: 131919: 431920: 351921: 361922: 311923: 471924: 231925: 411926: 201927: 201928: 331929: 361930: 221931: 241932: 231933: 131934: 151935: 161936: 211937: 101938: 371939: 171940: 131941: 251942: 391943: 121944: 71945: 121946: 161947: 611948: 291949: 181950: 101951: 91952: 171953: 221954: 151955: 161956: 191957: 251958: 191959: 191960: 161961: 271962: 51963: 231964: 121965: 101966: 151967: 91968: 211969: 241970: 101971: 161972: 31906191319201927193419411948195519621969
1,464 records at Den Helder still stand. 1947 holds the most, with 61.
Standing records at Den Helder by the year they were set
Year setStanding records
190621
190722
190834
190920
191017
191119
191246
191338
19148
191520
191623
191726
191813
191943
192035
192136
192231
192347
192423
192541
192620
192720
192833
192936
193022
193124
193223
193313
193415
193516
193621
193710
193837
193917
194013
194125
194239
194312
19447
194512
194616
194761
194829
194918
195010
19519
195217
195322
195415
195516
195619
195725
195819
195919
196016
196127
19625
196323
196412
196510
196615
19679
196821
196924
197010
197116
19723

All-Time Record Progression

2 new records
When Den Helder set new all-time records 2 all-time records were set at Den Helder between 20 December 1938 and 16 February 1956. Each dot is a new record. Record low maximum temperatureRecord low minimum temperature20 December 1938: Record low maximum temperature -10.6 C (12.9 F)16 February 1956: Record low minimum temperature -18.5 C (-1.3 F)1940194519501955
2 all-time records were set at Den Helder between 20 December 1938 and 16 February 1956. Each dot is a new record.
When Den Helder set new all-time records
DateKindDetail
1938-12-20Record low maximum temperatureRecord low maximum temperature -10.6 C (12.9 F)
1956-02-16Record low minimum temperatureRecord low minimum temperature -18.5 C (-1.3 F)

Period of Record Coverage

1906 to 1972
Days with data per year at Den Helder 67 years of record at Den Helder, 1906 to 1972. 3 years have data for under 90 percent of days and are left out of rankings: 1944, 1945, 1972. 1906: 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: 365 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: 244 of 366 days1945: 214 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: 213 of 366 days1910192019301940195019601970
67 years of record at Den Helder, 1906 to 1972. 3 years have data for under 90 percent of days and are left out of rankings: 1944, 1945, 1972.
Days with data per year at Den Helder
YearDays with dataShare of yearComplete
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
1932365100%Yes
1933365100%Yes
1934365100%Yes
1935365100%Yes
1936366100%Yes
1937365100%Yes
1938365100%Yes
1939365100%Yes
1940366100%Yes
1941365100%Yes
1942365100%Yes
1943365100%Yes
194424467%No
194521459%No
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
197221358%No

Latest Records

20
Latest records at Den Helder
DateStationRecordValueBeat old record byOld record stoodSignificance
2 April 1972Den Helder, NLdaily high min8.0 C (46.4 F)1.4 C (2.5 F)34 years21 of 100 (Routine)
25 March 1972Den Helder, NLdaily high max16.1 C (61.0 F)0.2 C (0.4 F)49 years20 of 100 (Routine)
15 March 1972Den Helder, NLdaily high max18.1 C (64.6 F)5.8 C (10.4 F)60 years41 of 100 (Notable)
21 December 1971Den Helder, NLdaily high min8.0 C (46.4 F)0.2 C (0.4 F)64 years25 of 100 (Routine)
21 December 1971Den Helder, NLdaily high max11.1 C (52.0 F)1.5 C (2.7 F)38 years21 of 100 (Routine)
20 December 1971Den Helder, NLdaily high min8.0 C (46.4 F)0.1 C (0.2 F)46 years20 of 100 (Routine)
5 November 1971Den Helder, NLdaily high max13.8 C (56.8 F)0.2 C (0.4 F)32 years15 of 100 (Routine)
24 October 1971Den Helder, NLdaily high max (Tie)17.4 C (63.3 F)tie25 years3 of 100 (Routine)
22 October 1971Den Helder, NLdaily high min13.9 C (57.0 F)0.9 C (1.6 F)45 years21 of 100 (Routine)
11 October 1971Den Helder, NLdaily high min15.6 C (60.1 F)1.4 C (2.5 F)4 years11 of 100 (Routine)
10 October 1971Den Helder, NLdaily high min14.4 C (57.9 F)0.2 C (0.4 F)29 years14 of 100 (Routine)
16 September 1971Den Helder, NLdaily low min6.0 C (42.8 F)0.1 C (0.2 F)45 years19 of 100 (Routine)
5 July 1971Den Helder, NLdaily high min17.7 C (63.9 F)0.2 C (0.4 F)12 years9 of 100 (Routine)
7 May 1971Den Helder, NLdaily high max22.4 C (72.3 F)0.5 C (0.9 F)0 years7 of 100 (Routine)
23 April 1971Den Helder, NLdaily high min12.0 C (53.6 F)1.9 C (3.4 F)58 years30 of 100 (Routine)
7 March 1971Den Helder, NLdaily low min-7.0 C (19.4 F)0.3 C (0.5 F)53 years23 of 100 (Routine)
4 March 1971Den Helder, NLdaily low max-2.2 C (28.0 F)1.2 C (2.2 F)24 years16 of 100 (Routine)
3 March 1971Den Helder, NLdaily low max-0.9 C (30.4 F)0.6 C (1.1 F)6 years9 of 100 (Routine)
5 January 1971Den Helder, NLdaily low min-8.2 C (17.2 F)0.3 C (0.5 F)24 years13 of 100 (Routine)
1 January 1971Den Helder, NLdaily low min-9.6 C (14.7 F)0.6 C (1.1 F)8 years9 of 100 (Routine)

Climate Trend

64 complete years, 1906 to 1971
Annual mean temperature at Den Helder as warming stripes, 1906 to 1971 One stripe for each of 64 complete years at Den Helder, 1906 to 1971. Blue stripes are years cooler than the station's own mean of 9.3 C (48.8 F); red stripes are warmer. The coolest year was 1963, at 7.8 C (46.1 F), and the warmest was 1959, at 10.5 C (50.9 F). The strongest colour marks a difference of 1.5 C (2.7 F). 1906: 9.6 C, +0.3 C from the station mean1907: 9.1 C, -0.3 C from the station mean1908: 8.7 C, -0.6 C from the station mean1909: 8.3 C, -1.0 C from the station mean1910: 9.4 C, +0.1 C from the station mean1911: 9.8 C, +0.5 C from the station mean1912: 9.3 C, 0.0 C from the station mean1913: 9.7 C, +0.4 C from the station mean1914: 9.9 C, +0.5 C from the station mean1915: 8.8 C, -0.5 C from the station mean1916: 9.2 C, -0.1 C from the station mean1917: 8.4 C, -0.9 C from the station mean1918: 9.4 C, 0.0 C from the station mean1919: 8.0 C, -1.3 C from the station mean1920: 9.5 C, +0.1 C from the station mean1921: 10.0 C, +0.7 C from the station mean1922: 8.4 C, -0.9 C from the station mean1923: 8.8 C, -0.5 C from the station mean1924: 8.6 C, -0.7 C from the station mean1925: 9.3 C, 0.0 C from the station mean1926: 9.6 C, +0.2 C from the station mean1927: 9.0 C, -0.3 C from the station mean1928: 9.5 C, +0.2 C from the station mean1929: 8.3 C, -1.1 C from the station mean1930: 9.7 C, +0.4 C from the station mean1931: 9.1 C, -0.2 C from the station mean1932: 9.6 C, +0.3 C from the station mean1933: 9.5 C, +0.2 C from the station mean1934: 10.2 C, +0.9 C from the station mean1935: 9.9 C, +0.6 C from the station mean1936: 9.6 C, +0.3 C from the station mean1937: 9.5 C, +0.2 C from the station mean1938: 9.9 C, +0.6 C from the station mean1939: 9.7 C, +0.4 C from the station mean1940: 8.1 C, -1.2 C from the station mean1941: 8.5 C, -0.8 C from the station mean1942: 8.3 C, -1.0 C from the station mean1943: 10.0 C, +0.7 C from the station mean1946: 9.2 C, -0.1 C from the station mean1947: 9.2 C, -0.1 C from the station mean1948: 10.0 C, +0.7 C from the station mean1949: 10.3 C, +1.0 C from the station mean1950: 9.6 C, +0.3 C from the station mean1951: 9.6 C, +0.3 C from the station mean1952: 9.3 C, 0.0 C from the station mean1953: 10.0 C, +0.6 C from the station mean1954: 9.0 C, -0.3 C from the station mean1955: 9.1 C, -0.2 C from the station mean1956: 8.4 C, -1.0 C from the station mean1957: 10.1 C, +0.8 C from the station mean1958: 9.6 C, +0.2 C from the station mean1959: 10.5 C, +1.2 C from the station mean1960: 9.8 C, +0.5 C from the station mean1961: 10.0 C, +0.7 C from the station mean1962: 8.5 C, -0.8 C from the station mean1963: 7.8 C, -1.5 C from the station mean1964: 9.3 C, -0.1 C from the station mean1965: 9.0 C, -0.4 C from the station mean1966: 9.4 C, +0.1 C from the station mean1967: 10.2 C, +0.9 C from the station mean1968: 9.3 C, 0.0 C from the station mean1969: 9.3 C, 0.0 C from the station mean1970: 9.3 C, 0.0 C from the station mean1971: 10.0 C, +0.7 C from the station mean19061910192019301940195019601970
One stripe for each of 64 complete years at Den Helder, 1906 to 1971. Blue stripes are years cooler than the station's own mean of 9.3 C (48.8 F); red stripes are warmer. The coolest year was 1963, at 7.8 C (46.1 F), and the warmest was 1959, at 10.5 C (50.9 F). The strongest colour marks a difference of 1.5 C (2.7 F).
Annual mean temperature at Den Helder as warming stripes, 1906 to 1971
YearAnnual mean temperatureDifference from the station mean
19069.6 C+0.31 C
19079.1 C-0.26 C
19088.7 C-0.62 C
19098.3 C-1.03 C
19109.4 C+0.09 C
19119.8 C+0.50 C
19129.3 C-0.01 C
19139.7 C+0.37 C
19149.9 C+0.54 C
19158.8 C-0.48 C
19169.2 C-0.07 C
19178.4 C-0.90 C
19189.4 C+0.05 C
19198.0 C-1.28 C
19209.5 C+0.15 C
192110.0 C+0.73 C
19228.4 C-0.94 C
19238.8 C-0.53 C
19248.6 C-0.74 C
19259.3 C-0.02 C
19269.6 C+0.25 C
19279.0 C-0.28 C
19289.5 C+0.17 C
19298.3 C-1.06 C
19309.7 C+0.43 C
19319.1 C-0.24 C
19329.6 C+0.28 C
19339.5 C+0.19 C
193410.2 C+0.89 C
19359.9 C+0.57 C
19369.6 C+0.33 C
19379.5 C+0.22 C
19389.9 C+0.61 C
19399.7 C+0.39 C
19408.1 C-1.17 C
19418.5 C-0.82 C
19428.3 C-1.03 C
194310.0 C+0.69 C
19469.2 C-0.13 C
19479.2 C-0.08 C
194810.0 C+0.69 C
194910.3 C+1.03 C
19509.6 C+0.30 C
19519.6 C+0.31 C
19529.3 C-0.04 C
195310.0 C+0.64 C
19549.0 C-0.28 C
19559.1 C-0.19 C
19568.4 C-0.95 C
195710.1 C+0.83 C
19589.6 C+0.24 C
195910.5 C+1.17 C
19609.8 C+0.49 C
196110.0 C+0.68 C
19628.5 C-0.80 C
19637.8 C-1.48 C
19649.3 C-0.06 C
19659.0 C-0.35 C
19669.4 C+0.10 C
196710.2 C+0.93 C
19689.3 C0.00 C
19699.3 C0.00 C
19709.3 C0.00 C
197110.0 C+0.68 C

The fitted trend in annual mean temperature here over 1906 to 1971 is 0.06 C (-0.02 to 0.14) per decade. The interval includes zero, so the trend is not clearly different from zero. In Fahrenheit: 0.10 F (-0.04 to 0.25) per decade. The slope is a straight line fitted to 64 complete years; the brackets give its 95 percent interval.

Fitted temperature trends per decade at Den Helder
MeasurePer decade (C)Per decade (F)PeriodComplete yearsReading
Annual mean temperature0.06 C (-0.02 to 0.14) per decade0.10 F (-0.04 to 0.25) per decade1906 to 197164Not clearly different from zero
Mean daily maximum0.06 C (-0.03 to 0.14) per decade0.11 F (-0.05 to 0.26) per decade1906 to 197164Not clearly different from zero
Mean daily minimum0.06 C (-0.02 to 0.14) per decade0.10 F (-0.04 to 0.24) per decade1906 to 197164Not clearly different from zero

A year is complete when all 12 months have at least 20 days of both daily maximum and daily minimum readings. The annual mean is the mean of the monthly means. The trend describes this one station over this period; it does not say what caused the change.

Extremes by Year

1906 to 1972
Yearly extremes at Den Helder: the record and the median year
MeasureRecordYear of the recordMedian yearYears with a value
Hottest day (TXx)33.9 C (93.0 F)192328.1 C (82.6 F)67
Coldest night (TNn)-18.5 C (-1.3 F)1956-7.7 C (18.1 F)67

Hottest day (TXx)

Hottest day (TXx) at Den Helder by year The hottest day of the year at Den Helder, 1906 to 1972. The record is 33.9 C (93.0 F) in 1923, marked on the chart; the median year is 28.1 C (82.6 F). 22.52527.53032.535192019401960Record: 33.9 C (93.0 F) in 1923
The hottest day of the year at Den Helder, 1906 to 1972. The record is 33.9 C (93.0 F) in 1923, marked on the chart; the median year is 28.1 C (82.6 F).
Hottest day (TXx) at Den Helder by year
YearHottest day (TXx)
190629.8 C (85.6 F)
190728.9 C (84.0 F)
190827.2 C (81.0 F)
190927.0 C (80.6 F)
191023.9 C (75.0 F)
191132.2 C (90.0 F)
191230.5 C (86.9 F)
191326.4 C (79.5 F)
191428.3 C (82.9 F)
191531.0 C (87.8 F)
191624.2 C (75.6 F)
191728.8 C (83.8 F)
191827.0 C (80.6 F)
191930.1 C (86.2 F)
192027.5 C (81.5 F)
192127.0 C (80.6 F)
192227.9 C (82.2 F)
192333.9 C (93.0 F)
192428.0 C (82.4 F)
192531.9 C (89.4 F)
192627.4 C (81.3 F)
192727.0 C (80.6 F)
192826.7 C (80.1 F)
192929.2 C (84.6 F)
193029.2 C (84.6 F)
193126.9 C (80.4 F)
193230.8 C (87.4 F)
193329.7 C (85.5 F)
193428.1 C (82.6 F)
193528.9 C (84.0 F)
193629.2 C (84.6 F)
193727.6 C (81.7 F)
193826.8 C (80.2 F)
193927.6 C (81.7 F)
194024.3 C (75.7 F)
194128.4 C (83.1 F)
194229.0 C (84.2 F)
194327.8 C (82.0 F)
194429.6 C (85.3 F)
194530.9 C (87.6 F)
194630.0 C (86.0 F)
194730.7 C (87.3 F)
194827.0 C (80.6 F)
194932.6 C (90.7 F)
195026.9 C (80.4 F)
195126.8 C (80.2 F)
195227.5 C (81.5 F)
195330.0 C (86.0 F)
195426.6 C (79.9 F)
195525.5 C (77.9 F)
195624.0 C (75.2 F)
195728.8 C (83.8 F)
195827.3 C (81.1 F)
195931.1 C (88.0 F)
196028.1 C (82.6 F)
196129.6 C (85.3 F)
196225.5 C (77.9 F)
196324.3 C (75.7 F)
196430.2 C (86.4 F)
196525.4 C (77.7 F)
196625.1 C (77.2 F)
196728.5 C (83.3 F)
196830.3 C (86.5 F)
196930.6 C (87.1 F)
197028.3 C (82.9 F)
197127.2 C (81.0 F)
197225.6 C (78.1 F)

Coldest night (TNn)

Coldest night (TNn) at Den Helder by year The coldest night of the year at Den Helder, 1906 to 1972. The record is -18.5 C (-1.3 F) in 1956, marked on the chart; the median year is -7.7 C (18.1 F). -20-15-10-50192019401960Record: -18.5 C (-1.3 F) in 1956
The coldest night of the year at Den Helder, 1906 to 1972. The record is -18.5 C (-1.3 F) in 1956, marked on the chart; the median year is -7.7 C (18.1 F).
Coldest night (TNn) at Den Helder by year
YearColdest night (TNn)
1906-10.9 C (12.4 F)
1907-11.7 C (10.9 F)
1908-12.3 C (9.9 F)
1909-7.8 C (18.0 F)
1910-4.0 C (24.8 F)
1911-4.8 C (23.4 F)
1912-11.6 C (11.1 F)
1913-4.4 C (24.1 F)
1914-8.0 C (17.6 F)
1915-10.8 C (12.6 F)
1916-3.7 C (25.3 F)
1917-10.1 C (13.8 F)
1918-4.2 C (24.4 F)
1919-8.5 C (16.7 F)
1920-6.4 C (20.5 F)
1921-9.9 C (14.2 F)
1922-11.4 C (11.5 F)
1923-9.9 C (14.2 F)
1924-7.7 C (18.1 F)
1925-11.3 C (11.7 F)
1926-13.3 C (8.1 F)
1927-10.5 C (13.1 F)
1928-5.1 C (22.8 F)
1929-16.1 C (3.0 F)
1930-4.7 C (23.5 F)
1931-7.5 C (18.5 F)
1932-7.5 C (18.5 F)
1933-7.3 C (18.9 F)
1934-6.9 C (19.6 F)
1935-3.8 C (25.2 F)
1936-7.7 C (18.1 F)
1937-6.9 C (19.6 F)
1938-12.3 C (9.9 F)
1939-6.3 C (20.7 F)
1940-12.3 C (9.9 F)
1941-9.8 C (14.4 F)
1942-14.1 C (6.6 F)
1943-5.8 C (21.6 F)
1944-2.8 C (27.0 F)
1945-5.7 C (21.7 F)
1946-12.2 C (10.0 F)
1947-15.0 C (5.0 F)
1948-7.1 C (19.2 F)
1949-5.8 C (21.6 F)
1950-8.1 C (17.4 F)
1951-4.1 C (24.6 F)
1952-4.1 C (24.6 F)
1953-6.6 C (20.1 F)
1954-10.7 C (12.7 F)
1955-6.8 C (19.8 F)
1956-18.5 C (-1.3 F)
1957-7.4 C (18.7 F)
1958-7.0 C (19.4 F)
1959-4.7 C (23.5 F)
1960-5.4 C (22.3 F)
1961-10.3 C (13.5 F)
1962-7.6 C (18.3 F)
1963-14.3 C (6.3 F)
1964-6.0 C (21.2 F)
1965-7.1 C (19.2 F)
1966-7.7 C (18.1 F)
1967-6.9 C (19.6 F)
1968-12.7 C (9.1 F)
1969-8.0 C (17.6 F)
1970-7.5 C (18.5 F)
1971-9.6 C (14.7 F)
1972-10.5 C (13.1 F)

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

64 years with a frost

Across 64 years with a frost, the median last spring frost at Den Helder falls on 29 March and the median first autumn frost on 17 November, which leaves a median of 233 days between them.

In 1940 to 1971 the median growing season was 241 days. That is 15 days more than in 1906 to 1935.

Fitted over all years, the growing season changes by +4.6 days per decade at this station.

Frost dates and growing season at Den Helder
MeasureMedian, all yearsEarliest period (1906 to 1935)Recent period (1940 to 1971)Recent against earliestFitted trend
Last spring frost29 March3 April28 March6 days earlier-2.8 days per decade
First autumn frost17 November15 November19 November4 days later+1.8 days per decade
Growing days233 days226 days241 days15 days more+4.6 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.

Station Changes

No change in the annual mean temperature of this station was found against its neighbours.

Download the Data

  • Data for Den Helder standing records by year: CSV or JSON. Field meanings are on the data page.
  • Data for Den Helder 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 2026-10-14 (14 October 2026). Records are computed by this site and are not official.

Data as of . Last revised (2025-12-31).