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Built 2026-10-16 (16 October 2026)

Herzberg Threshold Days by Year

12 fixed thresholds counted per year at Herzberg (GME00123718): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Herzberg Thresholds

  • Herzberg: days with 10 mm (0.39 in) or more of precipitation in 82 years, most in 1993 with 40.
  • Herzberg: days with 25 mm (0.98 in) or more of precipitation in 72 years, most in 1981 with 6.
  • Herzberg: days with a maximum temperature at or below 0 C (32 F) in 23 years, most in 1996 with 53.
  • Herzberg: nights with a minimum temperature at or below 0 C (32 F) in 23 years, most in 1996 with 107.
  • 12 fixed thresholds have at least one qualifying day at Herzberg.
22 years with a qualifying day
Days at or above 30 C (86 F) per year at Herzberg Days per year at Herzberg with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 21 in 2018. 01020301992: 81994: 181995: 111996: 21997: 31998: 72011: 12012: 42013: 92014: 42015: 162016: 102017: 52018: 212019: 152020: 92021: 32022: 152023: 42024: 62025: 52026: 1819921996201120142017202020232026
Days per year at Herzberg with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 21 in 2018.
Days at or above 30 C (86 F) per year at Herzberg
YearDaysDecade average
199288.2
1994188.2
1995118.2
199628.2
199738.2
199878.2
201119.4
201249.4
201399.4
201449.4
2015169.4
2016109.4
201759.4
2018219.4
2019159.4
202098.6
202138.6
2022158.6
202348.6
202468.6
202558.6
2026188.6
First to last qualifying date each year at Herzberg For each year, a bar from the first to the last day at Herzberg meeting 30 C (86 F). 1992: 20 July 1992 to 28 August 19921994: 28 June 1994 to 5 August 19941995: 9 July 1995 to 23 August 19951996: 7 June 1996 to 8 June 19961997: 13 August 1997 to 25 August 19971998: 6 June 1998 to 12 August 19982011: 26 August 2011 to 26 August 20112012: 25 July 2012 to 20 August 20122013: 18 June 2013 to 3 August 20132014: 8 June 2014 to 20 July 20142015: 5 June 2015 to 31 August 20152016: 23 June 2016 to 13 September 20162017: 29 May 2017 to 30 August 20172018: 29 May 2018 to 18 September 20182019: 5 June 2019 to 31 August 20192020: 1 August 2020 to 15 September 20202021: 17 June 2021 to 19 June 20212022: 18 June 2022 to 24 August 20222023: 8 July 2023 to 19 August 20232024: 21 July 2024 to 6 September 20242025: 22 June 2025 to 14 August 20252026: 19 June 2026 to 15 August 202619921996201120142017202020232026JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Herzberg meeting 30 C (86 F).
First to last qualifying date each year at Herzberg
YearFirst dateLast date
19921992-07-201992-08-28
19941994-06-281994-08-05
19951995-07-091995-08-23
19961996-06-071996-06-08
19971997-08-131997-08-25
19981998-06-061998-08-12
20112011-08-262011-08-26
20122012-07-252012-08-20
20132013-06-182013-08-03
20142014-06-082014-07-20
20152015-06-052015-08-31
20162016-06-232016-09-13
20172017-05-292017-08-30
20182018-05-292018-09-18
20192019-06-052019-08-31
20202020-08-012020-09-15
20212021-06-172021-06-19
20222022-06-182022-08-24
20232023-07-082023-08-19
20242024-07-212024-09-06
20252025-06-222025-08-14
20262026-06-192026-08-15

Every Fixed Threshold

Fixed thresholds at Herzberg
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days2221201818
35 C (95 F): Days9320182
90 F (32.2 C): Days1812201811
100 F (37.8 C): Days1120221
0 C (32 F): Ice days (max2353199616
0 C (32 F): Frost days (min23107199654
-10 C (14 F): Days with min202319962
-20 C (-4 F): Days with min1420214
20 C (68 F): Tropical nights (min7219941
10 mm (0.39 in): Days with 10 mm or more rain8240199313
25 mm (0.98 in): Days with 25 mm or more rain72619813
50 mm (1.97 in): Days with 50 mm or more rain9119341

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1992.

Download the Data

  • Data for Herzberg 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). Threshold counts are computed by this site.

Data as of . Last revised (2026-10-12).