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

Zima Threshold Days by Year (RSM00030603)

11 fixed thresholds counted per year at Zima (RSM00030603): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Zima Thresholds

  • Zima: days with 10 mm (0.39 in) or more of precipitation in 85 years, most in 1944 with 18.
  • Zima: days with 25 mm (0.98 in) or more of precipitation in 53 years, most in 2019 with 6.
  • Zima: days with a maximum temperature at or below 0 C (32 F) in 26 years, most in 1969 with 134.
  • Zima: days with a maximum temperature at or above 30 C (86 F) in 23 years, most in 2015 with 19.
  • 11 fixed thresholds have at least one qualifying day at Zima.
23 years with a qualifying day
Days at or above 30 C (86 F) per year at Zima Days per year at Zima with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 19 in 2015. 051015201969: 171970: 71978: 41980: 71981: 32002: 132003: 62004: 92005: 82010: 102011: 92012: 32013: 22014: 102015: 192017: 152018: 92020: 102021: 82022: 42023: 42024: 142025: 1019691980200320102013201720212024
Days per year at Zima 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 Zima
YearDaysDecade average
19691717
197075.5
197845.5
198075
198135
2002139
200369
200499
200589
2010109.6
201199.6
201239.6
201329.6
2014109.6
2015199.6
2017159.6
201899.6
2020108.3
202188.3
202248.3
202348.3
2024148.3
2025108.3
First to last qualifying date each year at Zima For each year, a bar from the first to the last day at Zima meeting 30 C (86 F). 1969: 15 June 1969 to 10 September 19691970: 11 June 1970 to 26 July 19701978: 15 June 1978 to 30 July 19781980: 18 June 1980 to 12 July 19801981: 19 May 1981 to 4 June 19812002: 23 May 2002 to 22 August 20022003: 31 May 2003 to 23 July 20032004: 21 May 2004 to 16 August 20042005: 12 June 2005 to 6 August 20052010: 29 May 2010 to 19 July 20102011: 13 June 2011 to 20 August 20112012: 14 June 2012 to 28 June 20122013: 20 June 2013 to 21 June 20132014: 26 June 2014 to 15 August 20142015: 17 June 2015 to 22 August 20152017: 24 May 2017 to 12 August 20172018: 29 May 2018 to 24 July 20182020: 14 June 2020 to 14 July 20202021: 4 June 2021 to 27 July 20212022: 20 May 2022 to 1 July 20222023: 9 June 2023 to 29 August 20232024: 6 May 2024 to 11 August 20242025: 24 May 2025 to 3 August 202519691980200320102013201720212024JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Zima meeting 30 C (86 F).
First to last qualifying date each year at Zima
YearFirst dateLast date
19691969-06-151969-09-10
19701970-06-111970-07-26
19781978-06-151978-07-30
19801980-06-181980-07-12
19811981-05-191981-06-04
20022002-05-232002-08-22
20032003-05-312003-07-23
20042004-05-212004-08-16
20052005-06-122005-08-06
20102010-05-292010-07-19
20112011-06-132011-08-20
20122012-06-142012-06-28
20132013-06-202013-06-21
20142014-06-262014-08-15
20152015-06-172015-08-22
20172017-05-242017-08-12
20182018-05-292018-07-24
20202020-06-142020-07-14
20212021-06-042021-07-27
20222022-05-202022-07-01
20232023-06-092023-08-29
20242024-05-062024-08-11
20252025-05-242025-08-03

Every Fixed Threshold

Fixed thresholds at Zima
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days2319201510
35 C (95 F): Days5120023
90 F (32.2 C): Days18920155
0 C (32 F): Ice days (max26134196964
0 C (32 F): Frost days (min10n/a76
-10 C (14 F): Days with min10n/a49
-20 C (-4 F): Days with min10n/a26
-30 C (-22 F): Days with min10n/a6
10 mm (0.39 in): Days with 10 mm or more rain851819441
25 mm (0.98 in): Days with 25 mm or more rain53620194
50 mm (1.97 in): Days with 50 mm or more rain5220192

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1969.

Download the Data

  • Data for Zima 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).