Sidorovsk Weather Records (RSM00023365)

Record envelope, standing records and threshold days for Sidorovsk (RSM00023365), Russia, with 39 years of record.

Key Facts for Sidorovsk

Sidorovsk (RSM00023365) is a weather station in Russia at 66.60 latitude and 82.30 longitude, 34 m (112 ft) above sea level.
The station reports from 1959 to 1997, 39 years of record.
1,464 records set at Sidorovsk still stand.
Records are tracked for tmax, tmin, prcp: an element needs 30 years of data to be eligible.
Sidorovsk set a daily record precipitation of 11.2 mm (0.4 in) on 7 July 1997.

About the Station

Location: Russia, 66.60 latitude, 82.30 longitude.
Elevation: 34 m (112 ft).
Period of record: 1959 to 1997, 39 years.
Eligible elements: tmax, tmin, prcp.

Daily Record Envelope and 2026

0 days at or beyond a record

The band shows the record high and record low for each calendar day at Sidorovsk. The lines show the 2026 daily maximum and minimum. 0 days in 2026 matched or passed a record. Temperatures are in degrees Celsius.

Daily record high and record low at Sidorovsk, with 2026 drawn through them
Month	Highest record high	Lowest record low	2026 highest maximum	2026 lowest minimum
Jan	0.4 C (32.7 F)	-53.7 C (-64.7 F)	n/a	n/a
Feb	0.6 C (33.1 F)	-52.3 C (-62.1 F)	n/a	n/a
Mar	6.2 C (43.2 F)	-46.0 C (-50.8 F)	n/a	n/a
Apr	9.4 C (48.9 F)	-40.5 C (-40.9 F)	n/a	n/a
May	21.1 C (70.0 F)	-26.9 C (-16.4 F)	n/a	n/a
Jun	32.8 C (91.0 F)	-8.9 C (16.0 F)	n/a	n/a
Jul	34.3 C (93.7 F)	0.5 C (32.9 F)	n/a	n/a
Aug	29.5 C (85.1 F)	-3.6 C (25.5 F)	n/a	n/a
Sep	24.2 C (75.6 F)	-14.3 C (6.3 F)	n/a	n/a
Oct	12.2 C (54.0 F)	-36.5 C (-33.7 F)	n/a	n/a
Nov	1.8 C (35.2 F)	-48.4 C (-55.1 F)	n/a	n/a
Dec	0.9 C (33.6 F)	-55.0 C (-67.0 F)	n/a	n/a

Which Years Hold Standing Records

1,464 standing records

1,464 records at Sidorovsk still stand. 1992 holds the most, with 65.

Standing records at Sidorovsk by the year they were set
Year set	Standing records
1959	36
1960	42
1961	29
1962	43
1963	30
1964	43
1965	20
1966	50
1967	54
1968	45
1969	40
1970	52
1971	44
1972	29
1973	41
1974	42
1975	15
1976	37
1978	27
1979	39
1980	23
1981	56
1982	45
1983	45
1984	62
1985	33
1986	40
1987	40
1988	34
1989	32
1990	28
1991	47
1992	65
1993	34
1994	39
1995	45
1996	38

All-Time Record Progression

1 new records

1 all-time records were set at Sidorovsk between 2 July 1994 and 2 July 1994. Each dot is a new record.

Wettest Day of Each Month

Aug: 44.3 mm (1.7 in)

The wettest day on record for each calendar month at Sidorovsk. The most was 44.3 mm (1.7 in) on 4 August 1985.

Record daily precipitation for each month at Sidorovsk
Month	Record daily precipitation (mm)	Date
Jan	7.5 mm (0.30 in)	4 January 1995
Feb	6.7 mm (0.26 in)	28 February 1997
Mar	8.7 mm (0.34 in)	10 March 1969
Apr	14.5 mm (0.6 in)	17 April 1975
May	16.2 mm (0.6 in)	29 May 1995
Jun	41.9 mm (1.6 in)	1 June 1997
Jul	30.0 mm (1.2 in)	24 July 1969
Aug	44.3 mm (1.7 in)	4 August 1985
Sep	27.2 mm (1.1 in)	14 September 1995
Oct	15.4 mm (0.6 in)	16 October 1993
Nov	12.6 mm (0.5 in)	1 November 1988
Dec	13.5 mm (0.5 in)	28 December 1988

Period of Record Coverage

1959 to 1996

37 years of record at Sidorovsk, 1959 to 1996. 3 years have data for under 90 percent of days and are left out of rankings: 1975, 1993, 1996.

Days with data per year at Sidorovsk
Year	Days with data	Share of year	Complete
1959	365	100%	Yes
1960	364	99%	Yes
1961	365	100%	Yes
1962	365	100%	Yes
1963	365	100%	Yes
1964	366	100%	Yes
1965	365	100%	Yes
1966	359	98%	Yes
1967	365	100%	Yes
1968	365	100%	Yes
1969	365	100%	Yes
1970	363	99%	Yes
1971	365	100%	Yes
1972	366	100%	Yes
1973	362	99%	Yes
1974	362	99%	Yes
1975	242	66%	No
1976	363	99%	Yes
1978	365	100%	Yes
1979	365	100%	Yes
1980	366	100%	Yes
1981	365	100%	Yes
1982	365	100%	Yes
1983	365	100%	Yes
1984	366	100%	Yes
1985	365	100%	Yes
1986	365	100%	Yes
1987	365	100%	Yes
1988	366	100%	Yes
1989	365	100%	Yes
1990	365	100%	Yes
1991	365	100%	Yes
1992	366	100%	Yes
1993	315	86%	No
1994	365	100%	Yes
1995	365	100%	Yes
1996	305	83%	No

Latest Records

Latest records at Sidorovsk
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
7 July 1997	Sidorovsk, RU	daily rain	11.2 mm (0.4 in)	6.2 mm (0.24 in)	16 years	20 of 100 (Routine)
28 June 1997	Sidorovsk, RU	daily rain	24.1 mm (0.9 in)	7.5 mm (0.30 in)	28 years	20 of 100 (Routine)
1 June 1997	Sidorovsk, RU	monthly rain	41.9 mm (1.6 in)	15.4 mm (0.6 in)	33 years	57 of 100 (Notable)
27 May 1997	Sidorovsk, RU	daily rain	10.4 mm (0.4 in)	1.8 mm (0.07 in)	7 years	13 of 100 (Routine)
14 May 1997	Sidorovsk, RU	daily rain	8.1 mm (0.32 in)	2.9 mm (0.11 in)	16 years	20 of 100 (Routine)
30 April 1997	Sidorovsk, RU	daily rain	8.2 mm (0.32 in)	2.3 mm (0.09 in)	7 years	16 of 100 (Routine)
28 April 1997	Sidorovsk, RU	daily rain	7.7 mm (0.30 in)	1.1 mm (0.04 in)	14 years	12 of 100 (Routine)
31 March 1997	Sidorovsk, RU	daily rain	4.3 mm (0.17 in)	1.3 mm (0.05 in)	36 years	19 of 100 (Routine)
28 February 1997	Sidorovsk, RU	monthly rain	6.7 mm (0.26 in)	0.7 mm (0.03 in)	1 year	16 of 100 (Routine)
14 February 1997	Sidorovsk, RU	daily rain (Tie)	2.4 mm (0.09 in)	tie	27 years	2 of 100 (Routine)
20 January 1997	Sidorovsk, RU	daily rain (Tie)	3.1 mm (0.12 in)	tie	11 years	1 of 100 (Routine)
7 December 1996	Sidorovsk, RU	daily rain	6.9 mm (0.27 in)	2.7 mm (0.11 in)	4 years	17 of 100 (Routine)
5 December 1996	Sidorovsk, RU	daily rain	11.8 mm (0.5 in)	7.0 mm (0.28 in)	15 years	20 of 100 (Routine)
3 December 1996	Sidorovsk, RU	daily rain	5.9 mm (0.23 in)	3.1 mm (0.12 in)	18 years	20 of 100 (Routine)
25 November 1996	Sidorovsk, RU	daily rain	6.8 mm (0.27 in)	1.8 mm (0.07 in)	20 years	18 of 100 (Routine)
16 November 1996	Sidorovsk, RU	daily rain	6.8 mm (0.27 in)	1.9 mm (0.07 in)	5 years	13 of 100 (Routine)
15 November 1996	Sidorovsk, RU	daily rain	5.4 mm (0.21 in)	0.4 mm (0.02 in)	3 years	5 of 100 (Routine)
29 October 1996	Sidorovsk, RU	daily rain	5.3 mm (0.21 in)	1.0 mm (0.04 in)	10 years	10 of 100 (Routine)
14 October 1996	Sidorovsk, RU	daily high max	7.0 C (44.6 F)	1.7 C (3.1 F)	2 years	5 of 100 (Routine)
14 October 1996	Sidorovsk, RU	daily high min	2.1 C (35.8 F)	1.0 C (1.8 F)	2 years	4 of 100 (Routine)

Climate Trend

34 complete years, 1959 to 1995

One stripe for each of 34 complete years at Sidorovsk, 1959 to 1995. Blue stripes are years cooler than the station's own mean of -7.9 C (17.8 F); red stripes are warmer. The coolest year was 1974, at -10.9 C (12.3 F), and the warmest was 1995, at -4.9 C (23.2 F). The strongest colour marks a difference of 3.1 C (5.6 F).

Annual mean temperature at Sidorovsk as warming stripes, 1959 to 1995
Year	Annual mean temperature	Difference from the station mean
1959	-7.3 C	+0.60 C
1960	-10.0 C	-2.13 C
1961	-7.6 C	+0.33 C
1962	-5.7 C	+2.23 C
1963	-8.1 C	-0.22 C
1964	-8.9 C	-1.00 C
1965	-8.6 C	-0.71 C
1966	-10.6 C	-2.75 C
1967	-5.4 C	+2.49 C
1968	-9.5 C	-1.60 C
1969	-9.7 C	-1.77 C
1970	-9.0 C	-1.15 C
1971	-7.8 C	+0.14 C
1972	-9.1 C	-1.25 C
1973	-7.0 C	+0.91 C
1974	-10.9 C	-3.05 C
1976	-7.9 C	+0.04 C
1978	-8.0 C	-0.14 C
1979	-10.0 C	-2.07 C
1980	-7.9 C	+0.01 C
1981	-5.8 C	+2.05 C
1982	-7.2 C	+0.73 C
1983	-5.7 C	+2.21 C
1984	-7.5 C	+0.42 C
1985	-7.9 C	-0.05 C
1986	-7.0 C	+0.93 C
1987	-8.5 C	-0.59 C
1988	-7.0 C	+0.92 C
1989	-7.4 C	+0.54 C
1990	-7.7 C	+0.23 C
1991	-6.9 C	+1.00 C
1992	-8.5 C	-0.56 C
1994	-7.7 C	+0.24 C
1995	-4.9 C	+2.99 C

The fitted trend in annual mean temperature here over 1959 to 1995 is 0.44 C (-0.02 to 0.89) per decade. The interval includes zero, so the trend is not clearly different from zero. In Fahrenheit: 0.79 F (-0.03 to 1.61) per decade. The slope is a straight line fitted to 34 complete years; the brackets give its 95 percent interval.

Fitted temperature trends per decade at Sidorovsk
Measure	Per decade (C)	Per decade (F)	Period	Complete years	Reading
Annual mean temperature	0.44 C (-0.02 to 0.89) per decade	0.79 F (-0.03 to 1.61) per decade	1959 to 1995	34	Not clearly different from zero
Mean daily maximum	0.45 C (-0.02 to 0.92) per decade	0.81 F (-0.04 to 1.65) per decade	1959 to 1995	34	Not clearly different from zero
Mean daily minimum	0.43 C (-0.02 to 0.88) per decade	0.77 F (-0.04 to 1.58) per decade	1959 to 1995	34	Not clearly different from zero

A year is complete when all 12 months have at least 20 days of both daily maximum and daily minimum readings. The annual mean is the mean of the monthly means. The trend describes this one station over this period; it does not say what caused the change.

Extremes by Year

1959 to 1997

Yearly extremes at Sidorovsk: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Hottest day (TXx)	34.3 C (93.7 F)	1969	29.9 C (85.8 F)	37
Coldest night (TNn)	-55.0 C (-67.0 F)	1984	-49.8 C (-57.6 F)	37
Wettest day (Rx1day)	44.3 mm (1.7 in)	1985	21.3 mm (0.8 in)	38
Wettest five days (Rx5day)	77.8 mm (3.1 in)	1978	36.0 mm (1.4 in)	38
Longest dry spell (CDD)	52 days	1960	21 days	38

Hottest day (TXx)

The hottest day of the year at Sidorovsk, 1959 to 1997. The record is 34.3 C (93.7 F) in 1969, marked on the chart; the median year is 29.9 C (85.8 F).

Hottest day (TXx) at Sidorovsk by year
Year	Hottest day (TXx)
1959	28.0 C (82.4 F)
1960	25.3 C (77.5 F)
1961	26.6 C (79.9 F)
1962	29.3 C (84.7 F)
1963	31.6 C (88.9 F)
1964	31.5 C (88.7 F)
1965	28.4 C (83.1 F)
1966	28.9 C (84.0 F)
1967	32.8 C (91.0 F)
1968	32.9 C (91.2 F)
1969	34.3 C (93.7 F)
1970	29.2 C (84.6 F)
1971	28.9 C (84.0 F)
1972	29.9 C (85.8 F)
1973	32.4 C (90.3 F)
1974	27.9 C (82.2 F)
1975	21.0 C (69.8 F)
1976	28.7 C (83.7 F)
1978	29.0 C (84.2 F)
1979	28.2 C (82.8 F)
1980	27.7 C (81.9 F)
1981	31.2 C (88.2 F)
1982	30.2 C (86.4 F)
1983	32.8 C (91.0 F)
1984	30.3 C (86.5 F)
1985	29.9 C (85.8 F)
1986	29.2 C (84.6 F)
1987	32.5 C (90.5 F)
1988	28.0 C (82.4 F)
1989	31.6 C (88.9 F)
1990	33.3 C (91.9 F)
1991	30.5 C (86.9 F)
1992	30.2 C (86.4 F)
1993	30.4 C (86.7 F)
1994	31.0 C (87.8 F)
1995	27.3 C (81.1 F)
1996	31.9 C (89.4 F)
1997	n/a

Coldest night (TNn)

The coldest night of the year at Sidorovsk, 1959 to 1997. The record is -55.0 C (-67.0 F) in 1984, marked on the chart; the median year is -49.8 C (-57.6 F).

Coldest night (TNn) at Sidorovsk by year
Year	Coldest night (TNn)
1959	-49.6 C (-57.3 F)
1960	-52.0 C (-61.6 F)
1961	-48.6 C (-55.5 F)
1962	-47.6 C (-53.7 F)
1963	-47.2 C (-53.0 F)
1964	-49.8 C (-57.6 F)
1965	-47.9 C (-54.2 F)
1966	-52.3 C (-62.1 F)
1967	-52.3 C (-62.1 F)
1968	-47.8 C (-54.0 F)
1969	-51.0 C (-59.8 F)
1970	-50.1 C (-58.2 F)
1971	-48.6 C (-55.5 F)
1972	-51.9 C (-61.4 F)
1973	-53.7 C (-64.7 F)
1974	-48.2 C (-54.8 F)
1975	-45.5 C (-49.9 F)
1976	-49.8 C (-57.6 F)
1978	-50.8 C (-59.4 F)
1979	-53.1 C (-63.6 F)
1980	-44.4 C (-47.9 F)
1981	-42.0 C (-43.6 F)
1982	-49.9 C (-57.8 F)
1983	-43.0 C (-45.4 F)
1984	-55.0 C (-67.0 F)
1985	-52.1 C (-61.8 F)
1986	-52.6 C (-62.7 F)
1987	-52.5 C (-62.5 F)
1988	-51.9 C (-61.4 F)
1989	-47.5 C (-53.5 F)
1990	-46.4 C (-51.5 F)
1991	-51.5 C (-60.7 F)
1992	-48.4 C (-55.1 F)
1993	-48.5 C (-55.3 F)
1994	-50.5 C (-58.9 F)
1995	-42.4 C (-44.3 F)
1996	-47.6 C (-53.7 F)
1997	n/a

Wettest day (Rx1day)

The wettest day of the year at Sidorovsk, 1959 to 1997. The record is 44.3 mm (1.7 in) in 1985, marked on the chart; the median year is 21.3 mm (0.8 in).

Wettest day (Rx1day) at Sidorovsk by year
Year	Wettest day (Rx1day)
1959	25.3 mm (1.0 in)
1960	24.7 mm (1.0 in)
1961	20.0 mm (0.8 in)
1962	11.4 mm (0.4 in)
1963	26.5 mm (1.0 in)
1964	24.5 mm (1.0 in)
1965	18.2 mm (0.7 in)
1966	24.6 mm (1.0 in)
1967	27.1 mm (1.1 in)
1968	19.4 mm (0.8 in)
1969	30.0 mm (1.2 in)
1970	16.0 mm (0.6 in)
1971	22.9 mm (0.9 in)
1972	11.0 mm (0.4 in)
1973	23.8 mm (0.9 in)
1974	18.3 mm (0.7 in)
1975	21.1 mm (0.8 in)
1976	23.3 mm (0.9 in)
1978	42.9 mm (1.7 in)
1979	19.7 mm (0.8 in)
1980	28.0 mm (1.1 in)
1981	20.7 mm (0.8 in)
1982	30.3 mm (1.2 in)
1983	18.0 mm (0.7 in)
1984	14.9 mm (0.6 in)
1985	44.3 mm (1.7 in)
1986	19.1 mm (0.8 in)
1987	26.1 mm (1.0 in)
1988	24.5 mm (1.0 in)
1989	21.5 mm (0.8 in)
1990	18.1 mm (0.7 in)
1991	12.2 mm (0.5 in)
1992	21.0 mm (0.8 in)
1993	15.4 mm (0.6 in)
1994	17.8 mm (0.7 in)
1995	27.2 mm (1.1 in)
1996	19.3 mm (0.8 in)
1997	41.9 mm (1.6 in)

Wettest five days (Rx5day)

The wettest five days of the year at Sidorovsk, 1959 to 1997. The record is 77.8 mm (3.1 in) in 1978, marked on the chart; the median year is 36.0 mm (1.4 in).

Wettest five days (Rx5day) at Sidorovsk by year
Year	Wettest five days (Rx5day)
1959	30.9 mm (1.2 in)
1960	30.0 mm (1.2 in)
1961	49.5 mm (1.9 in)
1962	21.2 mm (0.8 in)
1963	43.6 mm (1.7 in)
1964	50.1 mm (2.0 in)
1965	33.2 mm (1.3 in)
1966	53.8 mm (2.1 in)
1967	36.6 mm (1.4 in)
1968	49.4 mm (1.9 in)
1969	55.0 mm (2.2 in)
1970	45.5 mm (1.8 in)
1971	52.1 mm (2.1 in)
1972	26.8 mm (1.1 in)
1973	30.7 mm (1.2 in)
1974	25.7 mm (1.0 in)
1975	35.4 mm (1.4 in)
1976	47.0 mm (1.9 in)
1978	77.8 mm (3.1 in)
1979	32.5 mm (1.3 in)
1980	37.8 mm (1.5 in)
1981	34.0 mm (1.3 in)
1982	57.7 mm (2.3 in)
1983	32.4 mm (1.3 in)
1984	24.0 mm (0.9 in)
1985	66.4 mm (2.6 in)
1986	34.7 mm (1.4 in)
1987	31.9 mm (1.3 in)
1988	62.7 mm (2.5 in)
1989	34.1 mm (1.3 in)
1990	32.6 mm (1.3 in)
1991	34.8 mm (1.4 in)
1992	37.3 mm (1.5 in)
1993	25.2 mm (1.0 in)
1994	30.0 mm (1.2 in)
1995	39.4 mm (1.6 in)
1996	41.9 mm (1.6 in)
1997	49.3 mm (1.9 in)

Longest dry spell (CDD)

The longest dry spell of the year at Sidorovsk, 1959 to 1997. The record is 52 days in 1960, marked on the chart; the median year is 21 days.

Longest dry spell (CDD) at Sidorovsk by year
Year	Longest dry spell (CDD)
1959	30 days
1960	52 days
1961	21 days
1962	17 days
1963	20 days
1964	38 days
1965	20 days
1966	22 days
1967	15 days
1968	21 days
1969	27 days
1970	25 days
1971	18 days
1972	18 days
1973	24 days
1974	31 days
1975	14 days
1976	23 days
1978	24 days
1979	23 days
1980	14 days
1981	32 days
1982	32 days
1983	13 days
1984	25 days
1985	21 days
1986	28 days
1987	34 days
1988	23 days
1989	17 days
1990	32 days
1991	20 days
1992	16 days
1993	21 days
1994	15 days
1995	17 days
1996	14 days
1997	8 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.

Frost Dates and Growing Season

34 years with a frost

Across 34 years with a frost, the median last spring frost at Sidorovsk falls on 12 June and the median first autumn frost on 5 September, which leaves a median of 86 days between them.

Fitted over all years, the growing season changes by -0.8 days per decade at this station.

Frost dates and growing season at Sidorovsk
Measure	Median, all years	Earliest period	Recent period (1963 to 1995)	Recent against earliest	Fitted trend
Last spring frost	12 June	n/a	12 June	n/a	-0.7 days per decade
First autumn frost	5 September	n/a	4 September	n/a	-1.5 days per decade
Growing days	86 days	n/a	85 days	n/a	-0.8 days per decade

A frost day is a day with a daily minimum at or below 0 C (32 F). The last spring frost and the first autumn frost are the last and first such days of the cold season, and growing days are the days between them. A negative trend for the last spring frost means it comes earlier.

Rainfall Return Levels

37 years, 1959 to 1996

A day with at least 21.4 mm (0.8 in) of rain is expected about once in 2 years. A day with at least 43.5 mm (1.7 in) of rain is expected about once in 100 years.

Rainfall return levels at Sidorovsk: the daily rain expected about once in a given number of years
Expected about once in	A day with at least	Note
2 years	21.4 mm (0.8 in)
5 years	27.5 mm (1.1 in)
10 years	31.5 mm (1.2 in)
25 years	36.4 mm (1.4 in)
50 years	40.0 mm (1.6 in)	Longer than the 37 years of record
100 years	43.5 mm (1.7 in)	Longer than the 37 years of record

The levels come from a generalised extreme value (GEV) distribution fitted by L-moments to the wettest-day total of each year, 37 years of values from 1959 to 1996.

A return level is an estimate. It is least reliable for the long periods, 50 and 100 years, and for any period longer than the record behind the fit, where the fit has to reach past the largest day actually observed. It is not a forecast.

The largest wettest-day totals in the fit: 44.3 mm (1.7 in) in 1985; 42.9 mm (1.7 in) in 1978; 30.3 mm (1.2 in) in 1982.

Download the Data

Data for Sidorovsk standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Sidorovsk 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 2025-12-31. Last revised 31 December 2025 (2025-12-31).