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

Kos-Istek Weather Records (KZ000035234)

Record envelope, standing records and threshold days for Kos-Istek (KZ000035234), Kazakhstan, with 68 years of record.

Key Facts for Kos-Istek

  • Kos-Istek (KZ000035234) is a weather station in Kazakhstan at 50.73 latitude and 57.90 longitude, 340 m (1,115 ft) above sea level.
  • The station reports from 1959 to 2026, 68 years of record.
  • 1,464 records set at Kos-Istek still stand.
  • Records are tracked for no element yet: an element needs 30 years of data to be eligible.

About the Station

  • Location: Kazakhstan, 50.73 latitude, 57.90 longitude.
  • Elevation: 340 m (1,115 ft).
  • Period of record: 1959 to 2026, 68 years.
  • Eligible elements: none yet.

Daily Record Envelope and 2026

74 days at or beyond a record
Daily record high and record low at Kos-Istek, with 2026 drawn through them The band shows the record high and record low for each calendar day at Kos-Istek. The lines show the 2026 daily maximum and minimum. 74 days in 2026 matched or passed a record. Temperatures are in degrees Celsius. -60-40-200204060 JanFebMarAprMayJunJulAugSepOctNovDec
The band shows the record high and record low for each calendar day at Kos-Istek. The lines show the 2026 daily maximum and minimum. 74 days in 2026 matched or passed a record. Temperatures are in degrees Celsius.
Daily record high and record low at Kos-Istek, with 2026 drawn through them
MonthHighest record highLowest record low2026 highest maximum2026 lowest minimum
Jan1.2 C (34.2 F)-41.5 C (-42.7 F)0.6 C (33.1 F)-32.4 C (-26.3 F)
Feb5.3 C (41.5 F)-35.1 C (-31.2 F)-0.2 C (31.6 F)-30.2 C (-22.4 F)
Mar15.4 C (59.7 F)-31.1 C (-24.0 F)14.3 C (57.7 F)-26.8 C (-16.2 F)
Apr27.3 C (81.1 F)-14.9 C (5.2 F)23.9 C (75.0 F)-4.7 C (23.5 F)
May36.4 C (97.5 F)-6.9 C (19.6 F)30.0 C (86.0 F)1.5 C (34.7 F)
Jun39.2 C (102.6 F)-1.4 C (29.5 F)32.8 C (91.0 F)7.4 C (45.3 F)
Jul40.6 C (105.1 F)1.0 C (33.8 F)33.7 C (92.7 F)9.1 C (48.4 F)
Aug40.0 C (104.0 F)0.4 C (32.7 F)33.3 C (91.9 F)4.8 C (40.6 F)
Sep35.7 C (96.3 F)-9.5 C (14.9 F)32.4 C (90.3 F)-9.5 C (14.9 F)
Oct26.1 C (79.0 F)-11.6 C (11.1 F)17.4 C (63.3 F)-10.8 C (12.6 F)
Nov15.3 C (59.5 F)-25.9 C (-14.6 F)11.4 C (52.5 F)-12.8 C (9.0 F)
Dec5.0 C (41.0 F)-33.1 C (-27.6 F)4.3 C (39.7 F)-28.5 C (-19.3 F)

Which Years Hold Standing Records

1,464 standing records
Standing records at Kos-Istek by the year they were set 1,464 records at Kos-Istek still stand. 2025 holds the most, with 229. 01002003001959: 11969: 31970: 31974: 51975: 91976: 71977: 81978: 141979: 11980: 41981: 182018: 1202019: 1702020: 1722021: 2092022: 1532023: 1922024: 1462025: 2291959197019751977197919812019202120232025
1,464 records at Kos-Istek still stand. 2025 holds the most, with 229.
Standing records at Kos-Istek by the year they were set
Year setStanding records
19591
19693
19703
19745
19759
19767
19778
197814
19791
19804
198118
2018120
2019170
2020172
2021209
2022153
2023192
2024146
2025229

Wettest Day of Each Month

Jun: 57.2 mm (2.3 in)
Record daily precipitation for each month at Kos-Istek The wettest day on record for each calendar month at Kos-Istek. The most was 57.2 mm (2.3 in) on 20 June 1983. 0204060 Jan: 16.7 mm (0.7 in), 6 January 1982 Jan Feb: 14.7 mm (0.6 in), 13 February 1985 Feb Mar: 14.9 mm (0.6 in), 23 March 1975 Mar Apr: 31.5 mm (1.2 in), 26 April 1972 Apr May: 33.5 mm (1.3 in), 30 May 1984 May Jun: 57.2 mm (2.3 in), 20 June 1983 Jun Jul: 38.5 mm (1.5 in), 15 July 1974 Jul Aug: 42.6 mm (1.7 in), 18 August 1981 Aug Sep: 49.3 mm (1.9 in), 8 September 1973 Sep Oct: 26.1 mm (1.0 in), 15 October 1984 Oct Nov: 35.6 mm (1.4 in), 2 November 1979 Nov Dec: 14.5 mm (0.6 in), 31 December 1978 Dec
The wettest day on record for each calendar month at Kos-Istek. The most was 57.2 mm (2.3 in) on 20 June 1983.
Record daily precipitation for each month at Kos-Istek
MonthRecord daily precipitation (mm)Date
Jan16.7 mm (0.7 in)6 January 1982
Feb14.7 mm (0.6 in)13 February 1985
Mar14.9 mm (0.6 in)23 March 1975
Apr31.5 mm (1.2 in)26 April 1972
May33.5 mm (1.3 in)30 May 1984
Jun57.2 mm (2.3 in)20 June 1983
Jul38.5 mm (1.5 in)15 July 1974
Aug42.6 mm (1.7 in)18 August 1981
Sep49.3 mm (1.9 in)8 September 1973
Oct26.1 mm (1.0 in)15 October 1984
Nov35.6 mm (1.4 in)2 November 1979
Dec14.5 mm (0.6 in)31 December 1978

Period of Record Coverage

1969 to 2025
Days with data per year at Kos-Istek 18 years of record at Kos-Istek, 1969 to 2025. 16 years have data for under 90 percent of days and are left out of rankings: 1969, 1970, 1974, 1975, 1976, 1977, 1978, 1979 and others. 1969: 14 of 365 days1970: 12 of 365 days1974: 14 of 365 days1975: 38 of 365 days1976: 11 of 366 days1977: 25 of 365 days1978: 66 of 365 days1979: 6 of 365 days1980: 23 of 366 days1981: 51 of 365 days2018: 207 of 365 days2019: 319 of 365 days2020: 322 of 366 days2021: 319 of 365 days2022: 329 of 365 days2023: 322 of 365 days2024: 313 of 366 days2025: 343 of 365 days19701975198020202025
18 years of record at Kos-Istek, 1969 to 2025. 16 years have data for under 90 percent of days and are left out of rankings: 1969, 1970, 1974, 1975, 1976, 1977, 1978, 1979 and others.
Days with data per year at Kos-Istek
YearDays with dataShare of yearComplete
1969144%No
1970123%No
1974144%No
19753810%No
1976113%No
1977257%No
19786618%No
197962%No
1980236%No
19815114%No
201820757%No
201931987%No
202032288%No
202131987%No
202232990%Yes
202332288%No
202431386%No
202534394%Yes

Latest Records

0

No records were set at this station in the latest data.

Extremes by Year

1959 to 2026
Yearly extremes at Kos-Istek: the record and the median year
MeasureRecordYear of the recordMedian yearYears with a value
Hottest day (TXx)40.6 C (105.1 F)202335.7 C (96.3 F)19
Coldest night (TNn)-41.5 C (-42.7 F)2023-28.2 C (-18.8 F)16
Wettest day (Rx1day)57.2 mm (2.3 in)198329.6 mm (1.2 in)27
Wettest five days (Rx5day)94.5 mm (3.7 in)197341.2 mm (1.6 in)26
Longest dry spell (CDD)118 days197530 days27

Hottest day (TXx)

Hottest day (TXx) at Kos-Istek by year The hottest day of the year at Kos-Istek, 1959 to 2026. The record is 40.6 C (105.1 F) in 2023, marked on the chart; the median year is 35.7 C (96.3 F). 010203040501960198020002020Record: 40.6 C (105.1 F) in 2023
The hottest day of the year at Kos-Istek, 1959 to 2026. The record is 40.6 C (105.1 F) in 2023, marked on the chart; the median year is 35.7 C (96.3 F).
Hottest day (TXx) at Kos-Istek by year
YearHottest day (TXx)
1959n/a
1966n/a
1967n/a
1968n/a
19697.8 C (46.0 F)
19706.1 C (43.0 F)
1971n/a
1972n/a
1973n/a
197420.0 C (68.0 F)
197534.0 C (93.2 F)
197640.0 C (104.0 F)
197732.0 C (89.6 F)
197837.0 C (98.6 F)
197929.0 C (84.2 F)
198029.0 C (84.2 F)
198131.0 C (87.8 F)
1982n/a
1983n/a
1984n/a
1985n/a
1986n/a
1987n/a
1988n/a
1989n/a
1990n/a
1991n/a
201836.1 C (97.0 F)
201939.7 C (103.5 F)
202037.9 C (100.2 F)
202139.5 C (103.1 F)
202236.4 C (97.5 F)
202340.6 C (105.1 F)
202435.7 C (96.3 F)
202533.7 C (92.7 F)
202636.2 C (97.2 F)

Coldest night (TNn)

Coldest night (TNn) at Kos-Istek by year The coldest night of the year at Kos-Istek, 1959 to 2026. The record is -41.5 C (-42.7 F) in 2023, marked on the chart; the median year is -28.2 C (-18.8 F). -60-40-2001960198020002020Record: -41.5 C (-42.7 F) in 2023
The coldest night of the year at Kos-Istek, 1959 to 2026. The record is -41.5 C (-42.7 F) in 2023, marked on the chart; the median year is -28.2 C (-18.8 F).
Coldest night (TNn) at Kos-Istek by year
YearColdest night (TNn)
1959-6.1 C (21.0 F)
1966n/a
1967n/a
1968n/a
1969-1.1 C (30.0 F)
1970n/a
1971n/a
1972n/a
1973n/a
1974-12.0 C (10.4 F)
1975-25.0 C (-13.0 F)
1976n/a
1977-5.0 C (23.0 F)
1978-4.0 C (24.8 F)
1979n/a
1980n/a
1981-25.0 C (-13.0 F)
1982n/a
1983n/a
1984n/a
1985n/a
1986n/a
1987n/a
1988n/a
1989n/a
1990n/a
1991n/a
2018-27.1 C (-16.8 F)
2019-31.2 C (-24.2 F)
2020-32.3 C (-26.1 F)
2021-33.1 C (-27.6 F)
2022-29.4 C (-20.9 F)
2023-41.5 C (-42.7 F)
2024-35.1 C (-31.2 F)
2025-32.4 C (-26.3 F)
2026-29.9 C (-21.8 F)

Wettest day (Rx1day)

Wettest day (Rx1day) at Kos-Istek by year The wettest day of the year at Kos-Istek, 1959 to 2026. The record is 57.2 mm (2.3 in) in 1983, marked on the chart; the median year is 29.6 mm (1.2 in). 02040601960198020002020Record: 57.2 mm (2.3 in) in 1983
The wettest day of the year at Kos-Istek, 1959 to 2026. The record is 57.2 mm (2.3 in) in 1983, marked on the chart; the median year is 29.6 mm (1.2 in).
Wettest day (Rx1day) at Kos-Istek by year
YearWettest day (Rx1day)
1959n/a
196626.5 mm (1.0 in)
196729.9 mm (1.2 in)
196833.1 mm (1.3 in)
196927.2 mm (1.1 in)
197028.1 mm (1.1 in)
197129.1 mm (1.1 in)
197231.5 mm (1.2 in)
197349.3 mm (1.9 in)
197438.5 mm (1.5 in)
197521.3 mm (0.8 in)
197626.8 mm (1.1 in)
197730.4 mm (1.2 in)
197829.6 mm (1.2 in)
197935.6 mm (1.4 in)
198031.2 mm (1.2 in)
198142.6 mm (1.7 in)
198229.2 mm (1.1 in)
198357.2 mm (2.3 in)
198433.5 mm (1.3 in)
198515.9 mm (0.6 in)
198617.6 mm (0.7 in)
198748.2 mm (1.9 in)
198816.9 mm (0.7 in)
198930.9 mm (1.2 in)
199020.9 mm (0.8 in)
199113.5 mm (0.5 in)
2018n/a
2019n/a
2020n/a
2021n/a
2022n/a
2023n/a
2024n/a
2025n/a
20264.0 mm (0.16 in)

Wettest five days (Rx5day)

Wettest five days (Rx5day) at Kos-Istek by year The wettest five days of the year at Kos-Istek, 1959 to 2026. The record is 94.5 mm (3.7 in) in 1973, marked on the chart; the median year is 41.2 mm (1.6 in). 204060801001960198020002020Record: 94.5 mm (3.7 in) in 1973
The wettest five days of the year at Kos-Istek, 1959 to 2026. The record is 94.5 mm (3.7 in) in 1973, marked on the chart; the median year is 41.2 mm (1.6 in).
Wettest five days (Rx5day) at Kos-Istek by year
YearWettest five days (Rx5day)
1959n/a
196636.4 mm (1.4 in)
196767.0 mm (2.6 in)
196845.4 mm (1.8 in)
196936.4 mm (1.4 in)
197054.5 mm (2.1 in)
197133.7 mm (1.3 in)
197232.4 mm (1.3 in)
197394.5 mm (3.7 in)
197467.6 mm (2.7 in)
197533.7 mm (1.3 in)
197633.0 mm (1.3 in)
197748.1 mm (1.9 in)
197831.8 mm (1.3 in)
197945.4 mm (1.8 in)
198048.9 mm (1.9 in)
198167.6 mm (2.7 in)
198244.6 mm (1.8 in)
198366.9 mm (2.6 in)
198437.5 mm (1.5 in)
198526.8 mm (1.1 in)
198631.6 mm (1.2 in)
198749.4 mm (1.9 in)
198822.9 mm (0.9 in)
198945.3 mm (1.8 in)
199037.8 mm (1.5 in)
199123.9 mm (0.9 in)
2018n/a
2019n/a
2020n/a
2021n/a
2022n/a
2023n/a
2024n/a
2025n/a
2026n/a

Longest dry spell (CDD)

Longest dry spell (CDD) at Kos-Istek by year The longest dry spell of the year at Kos-Istek, 1959 to 2026. The record is 118 days in 1975, marked on the chart; the median year is 30 days. 0501001501960198020002020Record: 118 days in 1975
The longest dry spell of the year at Kos-Istek, 1959 to 2026. The record is 118 days in 1975, marked on the chart; the median year is 30 days.
Longest dry spell (CDD) at Kos-Istek by year
YearLongest dry spell (CDD)
1959n/a
196621 days
196740 days
196823 days
196927 days
197035 days
197141 days
197225 days
197326 days
197451 days
1975118 days
197633 days
197724 days
197839 days
197930 days
198030 days
198124 days
198227 days
198331 days
198437 days
198536 days
198626 days
198729 days
198829 days
198930 days
199018 days
199145 days
2018n/a
2019n/a
2020n/a
2021n/a
2022n/a
2023n/a
2024n/a
2025n/a
20262 days

Each chart shows one value per year; the dot marks the record year. TXx is the hottest daily maximum, TNn the coldest daily minimum, Rx1day and Rx5day the largest one-day and five-day rain totals, and CDD the longest run of days with less than 1 mm of rain. A year with missing days can understate an extreme.

Download the Data

  • Data for Kos-Istek standing records by year: CSV or JSON. Field meanings are on the data page.
  • Data for Kos-Istek 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). Records are computed by this site and are not official.

Data as of . Last revised (2025-12-31).