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Built 2026-10-18 (18 October 2026)

Tann/Rhon Threshold Days by Year

11 fixed thresholds counted per year at Tann/Rhon (GME00129166): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Tann/Rhon Thresholds

  • Tann/Rhon: days with 10 mm (0.39 in) or more of precipitation in 91 years, most in 1941 with 32.
  • Tann/Rhon: days with 25 mm (0.98 in) or more of precipitation in 79 years, most in 1941 with 8.
  • Tann/Rhon: nights with a minimum temperature at or below 0 C (32 F) in 38 years, most in 1996 with 122.
  • Tann/Rhon: days with a maximum temperature at or below 0 C (32 F) in 37 years, most in 2010 with 63.
  • 11 fixed thresholds have at least one qualifying day at Tann/Rhon.
35 years with a qualifying day
Days at or above 30 C (86 F) per year at Tann/Rhon Days per year at Tann/Rhon with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 19 in 2015. 01020301986: 11987: 11989: 21990: 51991: 51992: 31994: 121995: 41996: 21997: 11998: 71999: 12003: 162005: 22006: 102007: 22008: 72009: 12010: 82011: 42012: 52013: 102014: 42015: 192016: 92017: 32018: 172019: 162020: 102021: 32022: 142023: 62024: 72025: 82026: 21198619911996200320082012201620202024
Days per year at Tann/Rhon with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 19 in 2015.
Days at or above 30 C (86 F) per year at Tann/Rhon
YearDaysDecade average
198611.3
198711.3
198921.3
199054.4
199154.4
199234.4
1994124.4
199544.4
199624.4
199714.4
199874.4
199914.4
2003166.3
200526.3
2006106.3
200726.3
200876.3
200916.3
201089.5
201149.5
201259.5
2013109.5
201449.5
2015199.5
201699.5
201739.5
2018179.5
2019169.5
2020109.9
202139.9
2022149.9
202369.9
202479.9
202589.9
2026219.9
First to last qualifying date each year at Tann/Rhon For each year, a bar from the first to the last day at Tann/Rhon meeting 30 C (86 F). 1986: 3 August 1986 to 3 August 19861987: 30 June 1987 to 30 June 19871989: 16 August 1989 to 21 August 19891990: 31 July 1990 to 12 August 19901991: 7 July 1991 to 7 August 19911992: 21 July 1992 to 9 August 19921994: 25 June 1994 to 5 August 19941995: 9 July 1995 to 21 July 19951996: 7 June 1996 to 8 June 19961997: 25 August 1997 to 25 August 19971998: 6 June 1998 to 12 August 19981999: 3 July 1999 to 3 July 19992003: 15 July 2003 to 13 August 20032005: 28 May 2005 to 28 July 20052006: 5 July 2006 to 27 July 20062007: 15 July 2007 to 16 July 20072008: 29 May 2008 to 7 August 20082009: 20 August 2009 to 20 August 20092010: 2 July 2010 to 21 July 20102011: 5 June 2011 to 26 August 20112012: 25 July 2012 to 21 August 20122013: 18 June 2013 to 6 August 20132014: 8 June 2014 to 19 July 20142015: 5 June 2015 to 31 August 20152016: 23 June 2016 to 13 September 20162017: 29 May 2017 to 19 July 20172018: 24 July 2018 to 23 August 20182019: 5 June 2019 to 31 August 20192020: 31 July 2020 to 21 August 20202021: 17 June 2021 to 19 June 20212022: 18 June 2022 to 25 August 20222023: 22 June 2023 to 19 August 20232024: 26 June 2024 to 5 September 20242025: 14 June 2025 to 15 August 20252026: 18 June 2026 to 15 August 20261986199219982007201220172022JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Tann/Rhon meeting 30 C (86 F).
First to last qualifying date each year at Tann/Rhon
YearFirst dateLast date
19861986-08-031986-08-03
19871987-06-301987-06-30
19891989-08-161989-08-21
19901990-07-311990-08-12
19911991-07-071991-08-07
19921992-07-211992-08-09
19941994-06-251994-08-05
19951995-07-091995-07-21
19961996-06-071996-06-08
19971997-08-251997-08-25
19981998-06-061998-08-12
19991999-07-031999-07-03
20032003-07-152003-08-13
20052005-05-282005-07-28
20062006-07-052006-07-27
20072007-07-152007-07-16
20082008-05-292008-08-07
20092009-08-202009-08-20
20102010-07-022010-07-21
20112011-06-052011-08-26
20122012-07-252012-08-21
20132013-06-182013-08-06
20142014-06-082014-07-19
20152015-06-052015-08-31
20162016-06-232016-09-13
20172017-05-292017-07-19
20182018-07-242018-08-23
20192019-06-052019-08-31
20202020-07-312020-08-21
20212021-06-172021-06-19
20222022-06-182022-08-25
20232023-06-222023-08-19
20242024-06-262024-09-05
20252025-06-142025-08-15
20262026-06-182026-08-15

Every Fixed Threshold

Fixed thresholds at Tann/Rhon
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days3519201521
35 C (95 F): Days7320034
90 F (32.2 C): Days2712200313
0 C (32 F): Ice days (max376320109
0 C (32 F): Frost days (min38122199667
-10 C (14 F): Days with min343819875
-20 C (-4 F): Days with min4319861
20 C (68 F): Tropical nights (min2120153
10 mm (0.39 in): Days with 10 mm or more rain9132194110
25 mm (0.98 in): Days with 25 mm or more rain79819412
50 mm (1.97 in): Days with 50 mm or more rain18119341

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1986.

Download the Data

  • Data for Tann/Rhon 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 (2026-10-14).