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

Ust-Umalta Threshold Days by Year (RSM00031474)

14 fixed thresholds counted per year at Ust-Umalta (RSM00031474): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Ust-Umalta Thresholds

  • Ust-Umalta: days with 10 mm (0.39 in) or more of precipitation in 65 years, most in 1972 with 39.
  • Ust-Umalta: days with 25 mm (0.98 in) or more of precipitation in 64 years, most in 2021 with 13.
  • Ust-Umalta: days with a maximum temperature at or above 30 C (86 F) in 36 years, most in 1998 with 20.
  • Ust-Umalta: days with a maximum temperature at or below 0 C (32 F) in 36 years, most in 1970 with 150.
  • 14 fixed thresholds have at least one qualifying day at Ust-Umalta.
36 years with a qualifying day
Days at or above 30 C (86 F) per year at Ust-Umalta Days per year at Ust-Umalta with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 20 in 1998. 051015201963: 81969: 71970: 111973: 111975: 101976: 41977: 61978: 41979: 41981: 41982: 61983: 31985: 11986: 151988: 191989: 81990: 121991: 61993: 131996: 141997: 21998: 202000: 82001: 72002: 32004: 72005: 122006: 52007: 182008: 132009: 32010: 92011: 202012: 172020: 62021: 10196319751979198519901997200220072011
Days per year at Ust-Umalta with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 20 in 1998.
Days at or above 30 C (86 F) per year at Ust-Umalta
YearDaysDecade average
196387.5
196977.5
1970117.1
1973117.1
1975107.1
197647.1
197767.1
197847.1
197947.1
198148
198268
198338
198518
1986158
1988198
198988
19901211.2
1991611.2
19931311.2
19961411.2
1997211.2
19982011.2
200088.4
200178.4
200238.4
200478.4
2005128.4
200658.4
2007188.4
2008138.4
200938.4
2010915.3
20112015.3
20121715.3
202068
2021108
First to last qualifying date each year at Ust-Umalta For each year, a bar from the first to the last day at Ust-Umalta meeting 30 C (86 F). 1963: 3 July 1963 to 26 July 19631969: 19 June 1969 to 15 July 19691970: 2 July 1970 to 16 August 19701973: 7 June 1973 to 2 August 19731975: 27 May 1975 to 21 August 19751976: 7 July 1976 to 19 July 19761977: 17 June 1977 to 23 July 19771978: 20 May 1978 to 1 July 19781979: 24 May 1979 to 10 August 19791981: 20 May 1981 to 13 July 19811982: 27 June 1982 to 31 July 19821983: 4 July 1983 to 6 July 19831985: 1 July 1985 to 1 July 19851986: 4 June 1986 to 23 August 19861988: 24 June 1988 to 2 August 19881989: 4 July 1989 to 6 August 19891990: 29 June 1990 to 21 July 19901991: 27 June 1991 to 17 July 19911993: 14 July 1993 to 7 August 19931996: 19 June 1996 to 24 July 19961997: 20 June 1997 to 27 July 19971998: 16 May 1998 to 4 August 19982000: 23 June 2000 to 12 August 20002001: 12 May 2001 to 14 August 20012002: 6 July 2002 to 9 July 20022004: 17 June 2004 to 28 July 20042005: 14 June 2005 to 11 August 20052006: 16 July 2006 to 9 August 20062007: 31 May 2007 to 9 August 20072008: 17 June 2008 to 27 July 20082009: 5 July 2009 to 10 August 20092010: 11 June 2010 to 1 July 20102011: 15 July 2011 to 9 August 20112012: 22 May 2012 to 8 August 20122020: 13 July 2020 to 31 July 20202021: 22 May 2021 to 24 July 202119631976198219891997200420092021JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Ust-Umalta meeting 30 C (86 F).
First to last qualifying date each year at Ust-Umalta
YearFirst dateLast date
19631963-07-031963-07-26
19691969-06-191969-07-15
19701970-07-021970-08-16
19731973-06-071973-08-02
19751975-05-271975-08-21
19761976-07-071976-07-19
19771977-06-171977-07-23
19781978-05-201978-07-01
19791979-05-241979-08-10
19811981-05-201981-07-13
19821982-06-271982-07-31
19831983-07-041983-07-06
19851985-07-011985-07-01
19861986-06-041986-08-23
19881988-06-241988-08-02
19891989-07-041989-08-06
19901990-06-291990-07-21
19911991-06-271991-07-17
19931993-07-141993-08-07
19961996-06-191996-07-24
19971997-06-201997-07-27
19981998-05-161998-08-04
20002000-06-232000-08-12
20012001-05-122001-08-14
20022002-07-062002-07-09
20042004-06-172004-07-28
20052005-06-142005-08-11
20062006-07-162006-08-09
20072007-05-312007-08-09
20082008-06-172008-07-27
20092009-07-052009-08-10
20102010-06-112010-07-01
20112011-07-152011-08-09
20122012-05-222012-08-08
20202020-07-132020-07-31
20212021-05-222021-07-24

Every Fixed Threshold

Fixed thresholds at Ust-Umalta
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days3620199810
35 C (95 F): Days6220101
90 F (32.2 C): Days261120112
0 C (32 F): Ice days (max361501970112
0 C (32 F): Frost days (min82411969205
-10 C (14 F): Days with min81691970141
-20 C (-4 F): Days with min81341982101
-30 C (-22 F): Days with min8103196959
-40 C (-40 F): Days with min86919694
20 C (68 F): Tropical nights (min1119771
10 mm (0.39 in): Days with 10 mm or more rain6539197228
25 mm (0.98 in): Days with 25 mm or more rain6413202113
50 mm (1.97 in): Days with 50 mm or more rain29420214
100 mm (3.94 in): Days with 100 mm or more rain1120211

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1963.

Download the Data

  • Data for Ust-Umalta 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).