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Data as of 2025-12-31
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Built 2026-10-19 (19 October 2026)

Ostenfeld Threshold Days by Year (CA00503B0NE)

14 fixed thresholds counted per year at Ostenfeld (CA00503B0NE): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Ostenfeld Thresholds

  • Ostenfeld: days with 10 mm (0.39 in) or more of precipitation in 10 years, most in 1977 with 19.
  • Ostenfeld: days with 25 mm (0.98 in) or more of precipitation in 10 years, most in 1977 with 5.
  • Ostenfeld: days with 10 cm (3.9 in) or more of snowfall in 7 years, most in 1975 with 4.
  • Ostenfeld: days with 50 mm (1.97 in) or more of precipitation in 4 years, most in 1974 with 1.
  • 14 fixed thresholds have at least one qualifying day at Ostenfeld.
10 years with a qualifying day
Days with 10 mm (0.39 in) or more of precipitation per year at Ostenfeld Days per year at Ostenfeld with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 19 in 1977. 051015201974: 101975: 151976: 131977: 191978: 161979: 181980: 111981: 151982: 151983: 91974197519761977197819791980198119821983
Days per year at Ostenfeld with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 19 in 1977.
Days with 10 mm (0.39 in) or more of precipitation per year at Ostenfeld
YearDaysDecade average
19741015.2
19751515.2
19761315.2
19771915.2
19781615.2
19791815.2
19801112.5
19811512.5
19821512.5
1983912.5
First to last qualifying date each year at Ostenfeld For each year, a bar from the first to the last day at Ostenfeld meeting 10 mm (0.39 in). 1974: 25 January 1974 to 28 August 19741975: 10 January 1975 to 12 December 19751976: 11 January 1976 to 26 August 19761977: 18 January 1977 to 20 November 19771978: 30 March 1978 to 28 December 19781979: 12 March 1979 to 31 October 19791980: 10 January 1980 to 16 October 19801981: 22 May 1981 to 12 October 19811982: 30 March 1982 to 1 December 19821983: 6 March 1983 to 8 September 198319741976197819801982JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Ostenfeld meeting 10 mm (0.39 in).
First to last qualifying date each year at Ostenfeld
YearFirst dateLast date
19741974-01-251974-08-28
19751975-01-101975-12-12
19761976-01-111976-08-26
19771977-01-181977-11-20
19781978-03-301978-12-28
19791979-03-121979-10-31
19801980-01-101980-10-16
19811981-05-221981-10-12
19821982-03-301982-12-01
19831983-03-061983-09-08

Every Fixed Threshold

Fixed thresholds at Ostenfeld
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days234198334
35 C (95 F): Days1319833
90 F (32.2 C): Days113198313
0 C (32 F): Ice days (max21191982112
0 C (32 F): Frost days (min22081983208
-10 C (14 F): Days with min21211982101
-20 C (-4 F): Days with min277198244
-30 C (-22 F): Days with min227198213
-40 C (-40 F): Days with min1219822
20 C (68 F): Tropical nights (min2419834
10 mm (0.39 in): Days with 10 mm or more rain101919779
25 mm (0.98 in): Days with 25 mm or more rain10519771
50 mm (1.97 in): Days with 50 mm or more rain4119741
10 cm (3.9 in): Days with 10 cm or more snowfall7419752

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1982.

Download the Data

  • Data for Ostenfeld 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 2026-10-17 (17 October 2026). Threshold counts are computed by this site.

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