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Built 2026-10-19 (19 October 2026)

Altastenberg Threshold Days by Year (GME00111457)

11 fixed thresholds counted per year at Altastenberg (GME00111457): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Altastenberg Thresholds

  • Altastenberg: days with 10 mm (0.39 in) or more of precipitation in 127 years, most in 1944 with 78.
  • Altastenberg: nights with a minimum temperature at or below 0 C (32 F) in 126 years, most in 1919 with 183.
  • Altastenberg: days with a maximum temperature at or below 0 C (32 F) in 125 years, most in 2010 with 103.
  • Altastenberg: days with 25 mm (0.98 in) or more of precipitation in 125 years, most in 1944 with 17.
  • 11 fixed thresholds have at least one qualifying day at Altastenberg.
20 years with a qualifying day
Days at or above 30 C (86 F) per year at Altastenberg Days per year at Altastenberg with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 4 in 2003. 012341904: 11911: 31922: 11923: 21925: 11928: 11929: 11952: 11957: 21959: 11992: 11994: 12003: 42006: 12015: 12018: 12019: 32022: 22025: 12026: 41904192219251929195719922003201520192025
Days per year at Altastenberg with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 4 in 2003.
Days at or above 30 C (86 F) per year at Altastenberg
YearDaysDecade average
190411
191133
192211.2
192321.2
192511.2
192811.2
192911.2
195211.3
195721.3
195911.3
199211
199411
200342.5
200612.5
201511.7
201811.7
201931.7
202222.3
202512.3
202642.3
First to last qualifying date each year at Altastenberg For each year, a bar from the first to the last day at Altastenberg meeting 30 C (86 F). 1904: 16 July 1904 to 16 July 19041911: 23 July 1911 to 28 July 19111922: 23 May 1922 to 23 May 19221923: 13 July 1923 to 14 July 19231925: 22 July 1925 to 22 July 19251928: 15 July 1928 to 15 July 19281929: 17 July 1929 to 17 July 19291952: 2 July 1952 to 2 July 19521957: 4 July 1957 to 6 July 19571959: 10 July 1959 to 10 July 19591992: 9 August 1992 to 9 August 19921994: 5 August 1994 to 5 August 19942003: 7 August 2003 to 12 August 20032006: 20 July 2006 to 20 July 20062015: 4 July 2015 to 4 July 20152018: 7 August 2018 to 7 August 20182019: 30 June 2019 to 25 July 20192022: 19 July 2022 to 20 July 20222025: 2 July 2025 to 2 July 20252026: 26 June 2026 to 14 August 20261904192319291959200320182025JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Altastenberg meeting 30 C (86 F).
First to last qualifying date each year at Altastenberg
YearFirst dateLast date
19041904-07-161904-07-16
19111911-07-231911-07-28
19221922-05-231922-05-23
19231923-07-131923-07-14
19251925-07-221925-07-22
19281928-07-151928-07-15
19291929-07-171929-07-17
19521952-07-021952-07-02
19571957-07-041957-07-06
19591959-07-101959-07-10
19921992-08-091992-08-09
19941994-08-051994-08-05
20032003-08-072003-08-12
20062006-07-202006-07-20
20152015-07-042015-07-04
20182018-08-072018-08-07
20192019-06-302019-07-25
20222022-07-192022-07-20
20252025-07-022025-07-02
20262026-06-262026-08-14

Every Fixed Threshold

Fixed thresholds at Altastenberg
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days20420034
90 F (32.2 C): Days10n/a1
0 C (32 F): Ice days (max125103201027
0 C (32 F): Frost days (min126183191962
-10 C (14 F): Days with min1144619422
-20 C (-4 F): Days with min11719401
20 C (68 F): Tropical nights (min18319473
10 mm (0.39 in): Days with 10 mm or more rain12778194417
25 mm (0.98 in): Days with 25 mm or more rain1251719441
50 mm (1.97 in): Days with 50 mm or more rain33219091
100 mm (3.94 in): Days with 100 mm or more rain2119981

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1904.

Download the Data

  • Data for Altastenberg 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 (2026-10-17).