Ivolginsk Threshold Days by Year (RSE00151025)

15 fixed thresholds counted per year at Ivolginsk (RSE00151025): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Ivolginsk Thresholds

Ivolginsk: days with a maximum temperature at or below 0 C (32 F) in 49 years, most in 1976 with 159.
Ivolginsk: nights with a minimum temperature at or below 0 C (32 F) in 49 years, most in 1974 with 232.
Ivolginsk: nights with a minimum temperature at or below -10 C (14 F) in 49 years, most in 1976 with 168.
Ivolginsk: nights with a minimum temperature at or below -20 C (-4 F) in 49 years, most in 1974 with 116.
15 fixed thresholds have at least one qualifying day at Ivolginsk.

Days at or above 30 C (86 F)

48 years with a qualifying day

Days per year at Ivolginsk with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 36 in 2015.

Days at or above 30 C (86 F) per year at Ivolginsk
Year	Days	Decade average
1966	2	2
1971	8	11.3
1972	1	11.3
1973	7	11.3
1974	23	11.3
1975	8	11.3
1976	12	11.3
1977	14	11.3
1978	11	11.3
1979	18	11.3
1980	21	8.7
1981	6	8.7
1982	5	8.7
1983	1	8.7
1984	7	8.7
1986	13	8.7
1987	13	8.7
1988	4	8.7
1989	8	8.7
1990	10	11.7
1991	11	11.7
1992	15	11.7
1993	8	11.7
1994	15	11.7
1995	10	11.7
1996	9	11.7
1997	18	11.7
1998	7	11.7
1999	14	11.7
2000	22	19
2001	23	19
2002	24	19
2003	14	19
2004	23	19
2005	13	19
2006	15	19
2007	26	19
2008	18	19
2009	12	19
2010	23	21.6
2011	26	21.6
2012	10	21.6
2013	7	21.6
2014	24	21.6
2015	36	21.6
2016	18	21.6
2017	33	21.6
2018	17	21.6

For each year, a bar from the first to the last day at Ivolginsk meeting 30 C (86 F).

First to last qualifying date each year at Ivolginsk
Year	First date	Last date
1966	1966-06-26	1966-08-24
1971	1971-05-19	1971-07-02
1972	1972-06-09	1972-06-09
1973	1973-06-04	1973-06-27
1974	1974-05-25	1974-08-29
1975	1975-05-23	1975-07-14
1976	1976-06-11	1976-07-17
1977	1977-06-22	1977-08-27
1978	1978-06-16	1978-08-13
1979	1979-05-20	1979-07-04
1980	1980-06-06	1980-08-18
1981	1981-05-31	1981-07-08
1982	1982-06-06	1982-08-21
1983	1983-07-04	1983-07-04
1984	1984-06-20	1984-07-24
1986	1986-06-16	1986-08-20
1987	1987-05-30	1987-08-19
1988	1988-06-01	1988-08-07
1989	1989-05-28	1989-07-19
1990	1990-05-16	1990-07-21
1991	1991-05-15	1991-08-07
1992	1992-05-22	1992-07-14
1993	1993-06-17	1993-08-01
1994	1994-06-08	1994-07-16
1995	1995-06-18	1995-08-02
1996	1996-05-21	1996-08-12
1997	1997-06-11	1997-08-20
1998	1998-07-01	1998-07-13
1999	1999-05-26	1999-07-25
2000	2000-06-02	2000-08-12
2001	2001-05-11	2001-08-28
2002	2002-06-03	2002-08-17
2003	2003-05-31	2003-07-24
2004	2004-05-22	2004-08-16
2005	2005-06-02	2005-08-22
2006	2006-06-23	2006-08-01
2007	2007-06-05	2007-09-06
2008	2008-06-10	2008-08-19
2009	2009-05-22	2009-08-12
2010	2010-05-30	2010-09-09
2011	2011-05-16	2011-08-21
2012	2012-05-07	2012-08-04
2013	2013-06-11	2013-07-30
2014	2014-05-30	2014-08-17
2015	2015-05-22	2015-08-27
2016	2016-06-01	2016-07-31
2017	2017-05-16	2017-08-13
2018	2018-05-29	2018-08-23

Every Fixed Threshold

Fixed thresholds at Ivolginsk
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	48	36	2015	17
35 C (95 F): Days	21	8	2015	5
40 C (104 F): Days	1	1	2010	1
90 F (32.2 C): Days	43	22	2015	4
100 F (37.8 C): Days	5	2	2004	1
0 C (32 F): Ice days (max	49	159	1976	133
0 C (32 F): Frost days (min	49	232	1974	207
-10 C (14 F): Days with min	49	168	1976	135
-20 C (-4 F): Days with min	49	116	1974	88
-30 C (-22 F): Days with min	49	43	1977	17
-40 C (-40 F): Days with min	9	7	2001	1
20 C (68 F): Tropical nights (min	6	2	2015	2
10 mm (0.39 in): Days with 10 mm or more rain	49	12	1988	7
25 mm (0.98 in): Days with 25 mm or more rain	29	4	1990	2
50 mm (1.97 in): Days with 50 mm or more rain	5	1	1985	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1966.

Download the Data

Data for Ivolginsk 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 2025-12-31. Last revised 31 December 2025 (2025-12-31).

Ivolginsk Threshold Days by Year (RSE00151025)

Key Facts for Ivolginsk Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

Related