Patna Weather Records (IN004102500)

Record envelope, standing records and threshold days for Patna (IN004102500), India, with 80 years of record.

Key Facts for Patna

Patna (IN004102500) is a weather station in India at 25.60 latitude and 85.10 longitude, 60 m (197 ft) above sea level.
The station reports from 1946 to 2025, 80 years of record.
1,464 records set at Patna still stand.
Records are tracked for tmax, tmin, prcp: an element needs 30 years of data to be eligible.
Patna set a daily record high minimum temperature of 28.7 C (83.7 F) on 16 August 2025.

About the Station

Location: India, 25.60 latitude, 85.10 longitude.
Elevation: 60 m (197 ft).
Period of record: 1946 to 2025, 80 years.
Eligible elements: tmax, tmin, prcp.

Daily Record Envelope and 2026

1 days at or beyond a record

The band shows the record high and record low for each calendar day at Patna. The lines show the 2026 daily maximum and minimum. 1 days in 2026 matched or passed a record. Temperatures are in degrees Celsius.

Daily record high and record low at Patna, with 2026 drawn through them
Month	Highest record high	Lowest record low	2026 highest maximum	2026 lowest minimum
Jan	29.3 C (84.7 F)	0.0 C (32.0 F)	n/a	10.0 C (50.0 F)
Feb	39.0 C (102.2 F)	3.0 C (37.4 F)	27.2 C (81.0 F)	12.5 C (54.5 F)
Mar	41.4 C (106.5 F)	8.0 C (46.4 F)	n/a	15.0 C (59.0 F)
Apr	45.0 C (113.0 F)	15.1 C (59.2 F)	n/a	20.5 C (68.9 F)
May	45.6 C (114.1 F)	18.0 C (64.4 F)	34.7 C (94.5 F)	21.6 C (70.9 F)
Jun	46.1 C (115.0 F)	19.3 C (66.7 F)	n/a	26.6 C (79.9 F)
Jul	42.2 C (108.0 F)	20.0 C (68.0 F)	33.9 C (93.0 F)	25.6 C (78.1 F)
Aug	39.9 C (103.8 F)	21.6 C (70.9 F)	34.8 C (94.6 F)	25.0 C (77.0 F)
Sep	39.0 C (102.2 F)	20.2 C (68.4 F)	n/a	n/a
Oct	39.2 C (102.6 F)	13.7 C (56.7 F)	n/a	n/a
Nov	35.1 C (95.2 F)	8.0 C (46.4 F)	n/a	n/a
Dec	33.9 C (93.0 F)	4.0 C (39.2 F)	n/a	n/a

Which Years Hold Standing Records

1,464 standing records

1,464 records at Patna still stand. 2024 holds the most, with 70.

Standing records at Patna by the year they were set
Year set	Standing records
1961	3
1962	18
1973	23
1974	31
1975	26
1976	28
1977	29
1978	28
1979	44
1980	39
1981	26
1982	30
1983	51
1984	31
1985	22
1986	27
1987	29
1988	24
1989	29
1990	32
1991	21
1992	28
1993	30
1994	25
1995	46
1996	20
1997	30
1998	43
1999	22
2000	24
2001	23
2002	23
2003	28
2004	31
2005	41
2006	30
2007	26
2008	28
2009	33
2010	41
2011	21
2012	29
2013	25
2014	18
2015	51
2016	11
2017	7
2018	7
2019	10
2020	7
2021	4
2022	7
2023	16
2024	70
2025	18

All-Time Record Progression

6 new records

6 all-time records were set at Patna between 11 July 1989 and 26 May 2024. Each dot is a new record.

When Patna set new all-time records
Date	Kind	Detail
1989-07-11	Record daily precipitation	Record daily precipitation 418.1 mm (16.5 in)
1991-09-04	Record daily precipitation	Record daily precipitation 462.0 mm (18.2 in)
2004-01-01	Record low maximum temperature	Record low maximum temperature 11.5 C (52.7 F)
2013-01-07	Record low maximum temperature	Record low maximum temperature 9.7 C (49.5 F)
2023-06-16	Record high minimum temperature	Record high minimum temperature 31.7 C (89.1 F)
2024-05-26	Record high minimum temperature	Record high minimum temperature 32.1 C (89.8 F)

Wettest Day of Each Month

Sep: 462.0 mm (18.2 in)

The wettest day on record for each calendar month at Patna. The most was 462.0 mm (18.2 in) on 4 September 1991.

Record daily precipitation for each month at Patna
Month	Record daily precipitation (mm)	Date
Jan	51.8 mm (2.0 in)	10 January 1957
Feb	50.0 mm (2.0 in)	20 February 1994
Mar	99.3 mm (3.9 in)	18 March 1982
Apr	51.1 mm (2.0 in)	26 April 1994
May	91.9 mm (3.6 in)	31 May 2013
Jun	205.0 mm (8.1 in)	30 June 1997
Jul	418.1 mm (16.5 in)	11 July 1989
Aug	389.9 mm (15.4 in)	27 August 1974
Sep	462.0 mm (18.2 in)	4 September 1991
Oct	162.6 mm (6.4 in)	6 October 1946
Nov	200.2 mm (7.9 in)	22 November 1993
Dec	41.9 mm (1.6 in)	22 December 1996

Period of Record Coverage

1961 to 2025

55 years of record at Patna, 1961 to 2025. 50 years have data for under 90 percent of days and are left out of rankings: 1961, 1962, 1973, 1974, 1975, 1976, 1977, 1978 and others.

Days with data per year at Patna
Year	Days with data	Share of year	Complete
1961	1	0%	No
1962	66	18%	No
1973	155	42%	No
1974	184	50%	No
1975	219	60%	No
1976	244	67%	No
1977	284	78%	No
1978	317	87%	No
1979	326	89%	No
1980	338	92%	Yes
1981	322	88%	No
1982	296	81%	No
1983	290	79%	No
1984	276	75%	No
1985	264	72%	No
1986	295	81%	No
1987	311	85%	No
1988	263	72%	No
1989	239	65%	No
1990	290	79%	No
1991	271	74%	No
1992	312	85%	No
1993	330	90%	Yes
1994	325	89%	No
1995	340	93%	Yes
1996	318	87%	No
1997	300	82%	No
1998	310	85%	No
1999	306	84%	No
2000	285	78%	No
2001	282	77%	No
2002	297	81%	No
2003	279	76%	No
2004	291	80%	No
2005	315	86%	No
2006	340	93%	Yes
2007	342	94%	Yes
2008	325	89%	No
2009	311	85%	No
2010	304	83%	No
2011	288	79%	No
2012	276	75%	No
2013	301	82%	No
2014	275	75%	No
2015	298	82%	No
2016	17	5%	No
2017	2	1%	No
2018	10	3%	No
2019	1	0%	No
2020	6	2%	No
2021	7	2%	No
2022	132	36%	No
2023	11	3%	No
2024	4	1%	No
2025	5	1%	No

Latest Records

Latest records at Patna
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
16 August 2025	Patna, IN	daily high min	28.7 C (83.7 F)	0.1 C (0.2 F)	0 years	6 of 100 (Routine)
15 August 2025	Patna, IN	daily high min (Tie)	27.9 C (82.2 F)	tie	0 years	1 of 100 (Routine)
14 June 2025	Patna, IN	monthly high min	31.9 C (89.4 F)	0.2 C (0.4 F)	1 year	17 of 100 (Routine)
13 June 2025	Patna, IN	daily high min	31.6 C (88.9 F)	1.2 C (2.2 F)	38 years	24 of 100 (Routine)
12 June 2025	Patna, IN	daily high min	31.6 C (88.9 F)	0.6 C (1.1 F)	50 years	24 of 100 (Routine)
11 June 2025	Patna, IN	daily high min	31.4 C (88.5 F)	0.4 C (0.7 F)	0 years	8 of 100 (Routine)
10 June 2025	Patna, IN	daily high min	31.0 C (87.8 F)	0.3 C (0.5 F)	30 years	16 of 100 (Routine)
11 May 2025	Patna, IN	daily high min	29.4 C (84.9 F)	2.4 C (4.3 F)	50 years	32 of 100 (Routine)
9 May 2025	Patna, IN	daily high min	27.6 C (81.7 F)	0.3 C (0.5 F)	30 years	16 of 100 (Routine)
6 May 2025	Patna, IN	daily rain	65.0 mm (2.6 in)	50.0 mm (2.0 in)	78 years	65 of 100 (Major)
22 April 2025	Patna, IN	daily high min	28.2 C (82.8 F)	0.6 C (1.1 F)	26 years	15 of 100 (Routine)
21 April 2025	Patna, IN	monthly high min	28.6 C (83.5 F)	0.6 C (1.1 F)	45 years	31 of 100 (Routine)
20 April 2025	Patna, IN	daily high min	26.6 C (79.9 F)	0.1 C (0.2 F)	22 years	12 of 100 (Routine)
11 April 2025	Patna, IN	daily rain	42.9 mm (1.7 in)	25.9 mm (1.0 in)	28 years	43 of 100 (Notable)
8 April 2025	Patna, IN	daily high min	26.8 C (80.2 F)	0.4 C (0.7 F)	23 years	13 of 100 (Routine)
7 April 2025	Patna, IN	daily high min	25.8 C (78.4 F)	0.4 C (0.7 F)	23 years	13 of 100 (Routine)
4 April 2025	Patna, IN	daily high min	24.2 C (75.6 F)	0.2 C (0.4 F)	8 years	8 of 100 (Routine)
28 March 2025	Patna, IN	monthly high min	24.9 C (76.8 F)	0.6 C (1.1 F)	32 years	27 of 100 (Routine)
2 March 2025	Patna, IN	daily high min (Tie)	18.0 C (64.4 F)	tie	52 years	5 of 100 (Routine)
28 February 2025	Patna, IN	daily high min	18.9 C (66.0 F)	0.3 C (0.5 F)	19 years	12 of 100 (Routine)

Climate Trend

16 complete years, 1980 to 2008

One stripe for each of 16 complete years at Patna, 1980 to 2008. Blue stripes are years cooler than the station's own mean of 25.6 C (78.1 F); red stripes are warmer. The coolest year was 1981, at 25.0 C (77.0 F), and the warmest was 2006, at 26.2 C (79.1 F). The strongest colour marks a difference of 0.6 C (1.1 F).

Annual mean temperature at Patna as warming stripes, 1980 to 2008
Year	Annual mean temperature	Difference from the station mean
1980	25.8 C	+0.22 C
1981	25.0 C	-0.58 C
1987	25.7 C	+0.05 C
1992	25.3 C	-0.29 C
1993	25.2 C	-0.36 C
1994	25.5 C	-0.07 C
1995	25.9 C	+0.26 C
1997	25.2 C	-0.38 C
1998	25.8 C	+0.18 C
1999	25.7 C	+0.08 C
2002	25.7 C	+0.07 C
2004	25.4 C	-0.16 C
2005	26.1 C	+0.53 C
2006	26.2 C	+0.56 C
2007	25.5 C	-0.09 C
2008	25.6 C	-0.01 C

This station does not have enough complete years (30 are needed) to fit a temperature trend.

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

1946 to 2025

Yearly extremes at Patna: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Hottest day (TXx)	46.1 C (115.0 F)	1995	43.0 C (109.4 F)	55
Coldest night (TNn)	0.0 C (32.0 F)	1975	5.3 C (41.5 F)	55
Wettest day (Rx1day)	462.0 mm (18.2 in)	1991	108.0 mm (4.3 in)	77
Wettest five days (Rx5day)	492.5 mm (19.4 in)	1991	189.4 mm (7.5 in)	75
Longest dry spell (CDD)	117 days	1961	24 days	77

Hottest day (TXx)

The hottest day of the year at Patna, 1946 to 2025. The record is 46.1 C (115.0 F) in 1995, marked on the chart; the median year is 43.0 C (109.4 F).

Hottest day (TXx) at Patna by year
Year	Hottest day (TXx)
1946	n/a
1947	n/a
1948	n/a
1949	n/a
1950	n/a
1952	n/a
1953	n/a
1954	n/a
1955	n/a
1956	n/a
1957	n/a
1958	n/a
1959	n/a
1960	n/a
1961	32.8 C (91.0 F)
1962	42.8 C (109.0 F)
1963	n/a
1964	n/a
1965	n/a
1966	n/a
1967	n/a
1968	n/a
1969	n/a
1970	n/a
1973	44.0 C (111.2 F)
1974	44.0 C (111.2 F)
1975	44.0 C (111.2 F)
1976	41.0 C (105.8 F)
1977	44.0 C (111.2 F)
1978	44.0 C (111.2 F)
1979	43.0 C (109.4 F)
1980	45.0 C (113.0 F)
1981	43.0 C (109.4 F)
1982	43.0 C (109.4 F)
1983	44.6 C (112.3 F)
1984	44.0 C (111.2 F)
1985	42.2 C (108.0 F)
1986	42.4 C (108.3 F)
1987	43.0 C (109.4 F)
1988	41.5 C (106.7 F)
1989	42.4 C (108.3 F)
1990	41.8 C (107.2 F)
1991	42.4 C (108.3 F)
1992	43.1 C (109.6 F)
1993	43.5 C (110.3 F)
1994	43.0 C (109.4 F)
1995	46.1 C (115.0 F)
1996	44.0 C (111.2 F)
1997	43.0 C (109.4 F)
1998	45.2 C (113.4 F)
1999	43.0 C (109.4 F)
2000	42.9 C (109.2 F)
2001	41.6 C (106.9 F)
2002	42.0 C (107.6 F)
2003	43.4 C (110.1 F)
2004	44.7 C (112.5 F)
2005	45.6 C (114.1 F)
2006	42.2 C (108.0 F)
2007	43.2 C (109.8 F)
2008	42.0 C (107.6 F)
2009	43.2 C (109.8 F)
2010	44.3 C (111.7 F)
2011	41.3 C (106.3 F)
2012	45.5 C (113.9 F)
2013	42.4 C (108.3 F)
2014	43.5 C (110.3 F)
2015	44.7 C (112.5 F)
2016	43.0 C (109.4 F)
2017	37.8 C (100.0 F)
2018	38.4 C (101.1 F)
2019	20.3 C (68.5 F)
2020	36.4 C (97.5 F)
2021	34.2 C (93.6 F)
2022	43.0 C (109.4 F)
2023	43.8 C (110.8 F)
2024	42.2 C (108.0 F)
2025	34.8 C (94.6 F)

Coldest night (TNn)

The coldest night of the year at Patna, 1946 to 2025. The record is 0.0 C (32.0 F) in 1975, marked on the chart; the median year is 5.3 C (41.5 F).

Coldest night (TNn) at Patna by year
Year	Coldest night (TNn)
1946	n/a
1947	n/a
1948	n/a
1949	n/a
1950	n/a
1952	n/a
1953	n/a
1954	n/a
1955	n/a
1956	n/a
1957	n/a
1958	n/a
1959	n/a
1960	n/a
1961	5.0 C (41.0 F)
1962	6.1 C (43.0 F)
1963	n/a
1964	n/a
1965	n/a
1966	n/a
1967	n/a
1968	n/a
1969	n/a
1970	n/a
1973	4.0 C (39.2 F)
1974	3.0 C (37.4 F)
1975	0.0 C (32.0 F)
1976	7.0 C (44.6 F)
1977	1.0 C (33.8 F)
1978	5.0 C (41.0 F)
1979	6.0 C (42.8 F)
1980	6.0 C (42.8 F)
1981	6.0 C (42.8 F)
1982	6.2 C (43.2 F)
1983	3.9 C (39.0 F)
1984	5.4 C (41.7 F)
1985	7.4 C (45.3 F)
1986	5.3 C (41.5 F)
1987	4.5 C (40.1 F)
1988	5.8 C (42.4 F)
1989	4.4 C (39.9 F)
1990	3.8 C (38.8 F)
1991	4.6 C (40.3 F)
1992	5.4 C (41.7 F)
1993	4.5 C (40.1 F)
1994	6.0 C (42.8 F)
1995	3.7 C (38.7 F)
1996	6.2 C (43.2 F)
1997	5.7 C (42.3 F)
1998	4.0 C (39.2 F)
1999	4.8 C (40.6 F)
2000	6.2 C (43.2 F)
2001	3.4 C (38.1 F)
2002	5.4 C (41.7 F)
2003	2.3 C (36.1 F)
2004	4.2 C (39.6 F)
2005	5.8 C (42.4 F)
2006	4.0 C (39.2 F)
2007	4.6 C (40.3 F)
2008	5.3 C (41.5 F)
2009	6.4 C (43.5 F)
2010	4.8 C (40.6 F)
2011	3.7 C (38.7 F)
2012	4.4 C (39.9 F)
2013	1.1 C (34.0 F)
2014	8.4 C (47.1 F)
2015	6.1 C (43.0 F)
2016	6.0 C (42.8 F)
2017	4.8 C (40.6 F)
2018	5.0 C (41.0 F)
2019	4.8 C (40.6 F)
2020	5.8 C (42.4 F)
2021	6.6 C (43.9 F)
2022	7.0 C (44.6 F)
2023	5.5 C (41.9 F)
2024	5.5 C (41.9 F)
2025	10.0 C (50.0 F)

Wettest day (Rx1day)

The wettest day of the year at Patna, 1946 to 2025. The record is 462.0 mm (18.2 in) in 1991, marked on the chart; the median year is 108.0 mm (4.3 in).

Wettest day (Rx1day) at Patna by year
Year	Wettest day (Rx1day)
1946	162.6 mm (6.4 in)
1947	101.1 mm (4.0 in)
1948	160.0 mm (6.3 in)
1949	134.6 mm (5.3 in)
1950	93.2 mm (3.7 in)
1952	81.8 mm (3.2 in)
1953	109.2 mm (4.3 in)
1954	87.1 mm (3.4 in)
1955	142.7 mm (5.6 in)
1956	83.6 mm (3.3 in)
1957	130.6 mm (5.1 in)
1958	90.6 mm (3.6 in)
1959	127.3 mm (5.0 in)
1960	251.6 mm (9.9 in)
1961	51.3 mm (2.0 in)
1962	90.5 mm (3.6 in)
1963	129.0 mm (5.1 in)
1964	126.8 mm (5.0 in)
1965	126.4 mm (5.0 in)
1966	77.1 mm (3.0 in)
1967	273.5 mm (10.8 in)
1968	83.0 mm (3.3 in)
1969	128.0 mm (5.0 in)
1970	154.9 mm (6.1 in)
1973	160.0 mm (6.3 in)
1974	389.9 mm (15.4 in)
1975	0.0 mm (0.00 in)
1976	9.9 mm (0.39 in)
1977	80.0 mm (3.1 in)
1978	260.1 mm (10.2 in)
1979	130.0 mm (5.1 in)
1980	140.0 mm (5.5 in)
1981	59.9 mm (2.4 in)
1982	99.3 mm (3.9 in)
1983	82.0 mm (3.2 in)
1984	97.0 mm (3.8 in)
1985	90.9 mm (3.6 in)
1986	108.0 mm (4.3 in)
1987	251.0 mm (9.9 in)
1988	118.1 mm (4.6 in)
1989	418.1 mm (16.5 in)
1990	129.8 mm (5.1 in)
1991	462.0 mm (18.2 in)
1992	71.1 mm (2.8 in)
1993	200.2 mm (7.9 in)
1994	197.1 mm (7.8 in)
1995	402.3 mm (15.8 in)
1996	79.8 mm (3.1 in)
1997	205.0 mm (8.1 in)
1998	74.9 mm (2.9 in)
1999	95.0 mm (3.7 in)
2000	117.1 mm (4.6 in)
2001	103.1 mm (4.1 in)
2002	158.0 mm (6.2 in)
2003	99.1 mm (3.9 in)
2004	96.0 mm (3.8 in)
2005	71.1 mm (2.8 in)
2006	157.0 mm (6.2 in)
2007	119.9 mm (4.7 in)
2008	104.9 mm (4.1 in)
2009	64.0 mm (2.5 in)
2010	83.1 mm (3.3 in)
2011	85.1 mm (3.4 in)
2012	98.0 mm (3.9 in)
2013	158.0 mm (6.2 in)
2014	18.0 mm (0.7 in)
2015	99.1 mm (3.9 in)
2016	18.0 mm (0.7 in)
2017	106.9 mm (4.2 in)
2018	132.1 mm (5.2 in)
2019	151.9 mm (6.0 in)
2020	83.1 mm (3.3 in)
2021	146.1 mm (5.8 in)
2022	112.0 mm (4.4 in)
2023	143.0 mm (5.6 in)
2024	89.9 mm (3.5 in)
2025	65.0 mm (2.6 in)

Wettest five days (Rx5day)

The wettest five days of the year at Patna, 1946 to 2025. The record is 492.5 mm (19.4 in) in 1991, marked on the chart; the median year is 189.4 mm (7.5 in).

Wettest five days (Rx5day) at Patna by year
Year	Wettest five days (Rx5day)
1946	227.4 mm (9.0 in)
1947	193.1 mm (7.6 in)
1948	274.0 mm (10.8 in)
1949	224.0 mm (8.8 in)
1950	200.9 mm (7.9 in)
1952	132.8 mm (5.2 in)
1953	284.0 mm (11.2 in)
1954	135.9 mm (5.4 in)
1955	211.8 mm (8.3 in)
1956	226.6 mm (8.9 in)
1957	188.2 mm (7.4 in)
1958	161.4 mm (6.4 in)
1959	262.8 mm (10.3 in)
1960	270.0 mm (10.6 in)
1961	143.1 mm (5.6 in)
1962	154.3 mm (6.1 in)
1963	209.5 mm (8.2 in)
1964	283.8 mm (11.2 in)
1965	172.9 mm (6.8 in)
1966	151.8 mm (6.0 in)
1967	442.7 mm (17.4 in)
1968	139.1 mm (5.5 in)
1969	198.6 mm (7.8 in)
1970	245.3 mm (9.7 in)
1973	93.9 mm (3.7 in)
1974	206.0 mm (8.1 in)
1975	0.0 mm (0.00 in)
1976	9.9 mm (0.39 in)
1977	180.8 mm (7.1 in)
1978	290.1 mm (11.4 in)
1979	257.0 mm (10.1 in)
1980	196.1 mm (7.7 in)
1981	128.8 mm (5.1 in)
1982	104.7 mm (4.1 in)
1983	125.0 mm (4.9 in)
1984	149.1 mm (5.9 in)
1985	151.2 mm (6.0 in)
1986	253.7 mm (10.0 in)
1987	280.5 mm (11.0 in)
1988	150.0 mm (5.9 in)
1989	434.6 mm (17.1 in)
1990	355.4 mm (14.0 in)
1991	492.5 mm (19.4 in)
1992	134.8 mm (5.3 in)
1993	236.4 mm (9.3 in)
1994	179.6 mm (7.1 in)
1995	466.6 mm (18.4 in)
1996	123.2 mm (4.9 in)
1997	349.0 mm (13.7 in)
1998	126.7 mm (5.0 in)
1999	172.5 mm (6.8 in)
2000	108.2 mm (4.3 in)
2001	289.0 mm (11.4 in)
2002	172.5 mm (6.8 in)
2003	184.9 mm (7.3 in)
2004	242.0 mm (9.5 in)
2005	187.2 mm (7.4 in)
2006	318.9 mm (12.6 in)
2007	272.8 mm (10.7 in)
2008	232.7 mm (9.2 in)
2009	87.1 mm (3.4 in)
2010	161.1 mm (6.3 in)
2011	140.0 mm (5.5 in)
2012	202.1 mm (8.0 in)
2013	221.5 mm (8.7 in)
2014	n/a
2015	161.3 mm (6.4 in)
2016	n/a
2017	114.8 mm (4.5 in)
2018	213.9 mm (8.4 in)
2019	371.7 mm (14.6 in)
2020	130.0 mm (5.1 in)
2021	189.4 mm (7.5 in)
2022	137.9 mm (5.4 in)
2023	230.1 mm (9.1 in)
2024	121.9 mm (4.8 in)
2025	140.0 mm (5.5 in)

Longest dry spell (CDD)

The longest dry spell of the year at Patna, 1946 to 2025. The record is 117 days in 1961, marked on the chart; the median year is 24 days.

Longest dry spell (CDD) at Patna by year
Year	Longest dry spell (CDD)
1946	40 days
1947	85 days
1948	78 days
1949	57 days
1950	94 days
1952	93 days
1953	89 days
1954	91 days
1955	80 days
1956	57 days
1957	83 days
1958	80 days
1959	61 days
1960	89 days
1961	117 days
1962	61 days
1963	51 days
1964	82 days
1965	81 days
1966	82 days
1967	73 days
1968	81 days
1969	50 days
1970	84 days
1973	10 days
1974	11 days
1975	3 days
1976	4 days
1977	19 days
1978	15 days
1979	22 days
1980	21 days
1981	24 days
1982	17 days
1983	30 days
1984	28 days
1985	23 days
1986	18 days
1987	20 days
1988	32 days
1989	26 days
1990	23 days
1991	20 days
1992	30 days
1993	23 days
1994	38 days
1995	52 days
1996	76 days
1997	38 days
1998	24 days
1999	34 days
2000	12 days
2001	2 days
2002	30 days
2003	60 days
2004	77 days
2005	28 days
2006	2 days
2007	3 days
2008	3 days
2009	2 days
2010	4 days
2011	3 days
2012	5 days
2013	5 days
2014	2 days
2015	6 days
2016	2 days
2017	6 days
2018	5 days
2019	3 days
2020	5 days
2021	4 days
2022	3 days
2023	6 days
2024	3 days
2025	4 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 Patna standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Patna 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 2026-10-14 (14 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).