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Data as of 2026-10-17
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Built 2026-10-19 (19 October 2026)

Hallum_A Threshold Days by Year (SWE00138446)

9 fixed thresholds counted per year at Hallum_A (SWE00138446): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Hallum_A Thresholds

  • Hallum_A: days with a maximum temperature at or below 0 C (32 F) in 31 years, most in 2010 with 98.
  • Hallum_A: nights with a minimum temperature at or below 0 C (32 F) in 31 years, most in 2010 with 160.
  • Hallum_A: days with 10 mm (0.39 in) or more of precipitation in 31 years, most in 2023 with 20.
  • Hallum_A: nights with a minimum temperature at or below -10 C (14 F) in 30 years, most in 2010 with 73.
  • 9 fixed thresholds have at least one qualifying day at Hallum_A.
15 years with a qualifying day
Days at or above 30 C (86 F) per year at Hallum_A Days per year at Hallum_A with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 8 in 2018. 024682001: 32005: 32006: 22007: 12008: 22010: 22013: 12014: 32018: 82019: 12020: 22021: 22022: 62025: 22026: 620012006200820132018202020222026
Days per year at Hallum_A with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 8 in 2018.
Days at or above 30 C (86 F) per year at Hallum_A
YearDaysDecade average
200132.2
200532.2
200622.2
200712.2
200822.2
201023
201313
201433
201883
201913
202023.6
202123.6
202263.6
202523.6
202663.6
First to last qualifying date each year at Hallum_A For each year, a bar from the first to the last day at Hallum_A meeting 30 C (86 F). 2001: 7 July 2001 to 16 August 20012005: 9 July 2005 to 11 July 20052006: 6 July 2006 to 27 July 20062007: 9 June 2007 to 9 June 20072008: 27 July 2008 to 28 July 20082010: 3 July 2010 to 11 July 20102013: 3 August 2013 to 3 August 20132014: 24 July 2014 to 26 July 20142018: 17 July 2018 to 8 August 20182019: 26 July 2019 to 26 July 20192020: 26 June 2020 to 7 August 20202021: 19 June 2021 to 14 July 20212022: 25 June 2022 to 14 August 20222025: 19 July 2025 to 20 July 20252026: 27 June 2026 to 14 August 202620012006200820132018202020222026JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Hallum_A meeting 30 C (86 F).
First to last qualifying date each year at Hallum_A
YearFirst dateLast date
20012001-07-072001-08-16
20052005-07-092005-07-11
20062006-07-062006-07-27
20072007-06-092007-06-09
20082008-07-272008-07-28
20102010-07-032010-07-11
20132013-08-032013-08-03
20142014-07-242014-07-26
20182018-07-172018-08-08
20192019-07-262019-07-26
20202020-06-262020-08-07
20212021-06-192021-07-14
20222022-06-252022-08-14
20252025-07-192025-07-20
20262026-06-272026-08-14

Every Fixed Threshold

Fixed thresholds at Hallum_A
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days15820186
90 F (32.2 C): Days4320181
0 C (32 F): Ice days (max3198201043
0 C (32 F): Frost days (min31160201081
-10 C (14 F): Days with min3073201018
-20 C (-4 F): Days with min171720104
10 mm (0.39 in): Days with 10 mm or more rain312020234
25 mm (0.98 in): Days with 25 mm or more rain20420101
50 mm (1.97 in): Days with 50 mm or more rain2120081

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 2001.

Download the Data

  • Data for Hallum_A 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).