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

Arka Threshold Days by Year (RSM00024988)

13 fixed thresholds counted per year at Arka (RSM00024988): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Arka Thresholds

  • Arka: days with 10 mm (0.39 in) or more of precipitation in 55 years, most in 1977 with 27.
  • Arka: days with 25 mm (0.98 in) or more of precipitation in 43 years, most in 1977 with 8.
  • Arka: days with a maximum temperature at or below 0 C (32 F) in 42 years, most in 1970 with 178.
  • Arka: days with a maximum temperature at or above 30 C (86 F) in 34 years, most in 2021 with 7.
  • 13 fixed thresholds have at least one qualifying day at Arka.
34 years with a qualifying day
Days at or above 30 C (86 F) per year at Arka Days per year at Arka with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 7 in 2021. 024681970: 61973: 11974: 11975: 31976: 41977: 11980: 21981: 11982: 51983: 11986: 11987: 11988: 21989: 21991: 51992: 12000: 32001: 22002: 12004: 22006: 32007: 12009: 22011: 52012: 22013: 12014: 12017: 32018: 12020: 52021: 72022: 72023: 42025: 2197019761982198820002006201220182023
Days per year at Arka with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 7 in 2021.
Days at or above 30 C (86 F) per year at Arka
YearDaysDecade average
197062.7
197312.7
197412.7
197532.7
197642.7
197712.7
198021.9
198111.9
198251.9
198311.9
198611.9
198711.9
198821.9
198921.9
199153
199213
200032
200122
200212
200422
200632
200712
200922
201152.2
201222.2
201312.2
201412.2
201732.2
201812.2
202055
202175
202275
202345
202525
First to last qualifying date each year at Arka For each year, a bar from the first to the last day at Arka meeting 30 C (86 F). 1970: 29 June 1970 to 19 July 19701973: 21 July 1973 to 21 July 19731974: 15 July 1974 to 15 July 19741975: 29 June 1975 to 6 August 19751976: 17 June 1976 to 19 July 19761977: 21 June 1977 to 21 June 19771980: 10 July 1980 to 15 August 19801981: 21 July 1981 to 21 July 19811982: 26 June 1982 to 29 July 19821983: 18 July 1983 to 18 July 19831986: 24 June 1986 to 24 June 19861987: 13 June 1987 to 13 June 19871988: 27 July 1988 to 28 July 19881989: 2 July 1989 to 31 July 19891991: 17 June 1991 to 16 August 19911992: 17 June 1992 to 17 June 19922000: 9 June 2000 to 20 July 20002001: 16 July 2001 to 27 July 20012002: 22 June 2002 to 22 June 20022004: 5 July 2004 to 6 July 20042006: 16 July 2006 to 5 August 20062007: 3 August 2007 to 3 August 20072009: 6 June 2009 to 15 July 20092011: 25 June 2011 to 27 July 20112012: 12 June 2012 to 13 June 20122013: 27 June 2013 to 27 June 20132014: 12 June 2014 to 12 June 20142017: 28 June 2017 to 13 August 20172018: 9 July 2018 to 9 July 20182020: 12 July 2020 to 29 July 20202021: 19 June 2021 to 12 August 20212022: 5 June 2022 to 15 July 20222023: 23 June 2023 to 19 July 20232025: 12 June 2025 to 18 July 20251970197719861992200620132021JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Arka meeting 30 C (86 F).
First to last qualifying date each year at Arka
YearFirst dateLast date
19701970-06-291970-07-19
19731973-07-211973-07-21
19741974-07-151974-07-15
19751975-06-291975-08-06
19761976-06-171976-07-19
19771977-06-211977-06-21
19801980-07-101980-08-15
19811981-07-211981-07-21
19821982-06-261982-07-29
19831983-07-181983-07-18
19861986-06-241986-06-24
19871987-06-131987-06-13
19881988-07-271988-07-28
19891989-07-021989-07-31
19911991-06-171991-08-16
19921992-06-171992-06-17
20002000-06-092000-07-20
20012001-07-162001-07-27
20022002-06-222002-06-22
20042004-07-052004-07-06
20062006-07-162006-08-05
20072007-08-032007-08-03
20092009-06-062009-07-15
20112011-06-252011-07-27
20122012-06-122012-06-13
20132013-06-272013-06-27
20142014-06-122014-06-12
20172017-06-282017-08-13
20182018-07-092018-07-09
20202020-07-122020-07-29
20212021-06-192021-08-12
20222022-06-052022-07-15
20232023-06-232023-07-19
20252025-06-122025-07-18

Every Fixed Threshold

Fixed thresholds at Arka
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days34720212
35 C (95 F): Days4119701
90 F (32.2 C): Days13420211
0 C (32 F): Ice days (max42178197088
0 C (32 F): Frost days (min152631969126
-10 C (14 F): Days with min15191197676
-20 C (-4 F): Days with min15155197064
-30 C (-22 F): Days with min1595197035
-40 C (-40 F): Days with min143219697
10 mm (0.39 in): Days with 10 mm or more rain5527197713
25 mm (0.98 in): Days with 25 mm or more rain43819773
50 mm (1.97 in): Days with 50 mm or more rain8220181
100 mm (3.94 in): Days with 100 mm or more rain10n/a1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1970.

Download the Data

  • Data for Arka 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).