Record envelope, standing records and threshold days for Kathmandu Airport (NP000444540), Nepal, with 55 years of record.
Key Facts for Kathmandu Airport
Kathmandu Airport (NP000444540) is a weather station in Nepal at 27.70 latitude and 85.37 longitude, 1,337 m (4,386 ft) above sea level.
The station reports from 1971 to 2025, 55 years of record.
1,464 records set at Kathmandu Airport still stand.
Records are tracked for tmax, tmin: an element needs 30 years of data to be eligible.
Kathmandu Airport set a daily record high minimum temperature of 21.4 C (70.5 F) on 16 August 2025.
About the Station
Location: Nepal, 27.70 latitude, 85.37 longitude.
Elevation: 1,337 m (4,386 ft).
Period of record: 1971 to 2025, 55 years.
Eligible elements: tmax, tmin.
Daily Record Envelope and 2026
1 days at or beyond a record
Record highRecord low2026 daily maximum2026 daily minimum
The band shows the record high and record low for each calendar day at Kathmandu Airport. 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 Kathmandu Airport, with 2026 drawn through them
Month
Highest record high
Lowest record low
2026 highest maximum
2026 lowest minimum
Jan
26.0 C (78.8 F)
-3.5 C (25.7 F)
21.5 C (70.7 F)
3.7 C (38.7 F)
Feb
29.2 C (84.6 F)
-2.4 C (27.7 F)
24.3 C (75.7 F)
4.3 C (39.7 F)
Mar
31.6 C (88.9 F)
0.5 C (32.9 F)
29.7 C (85.5 F)
8.5 C (47.3 F)
Apr
35.6 C (96.1 F)
3.5 C (38.3 F)
33.5 C (92.3 F)
11.6 C (52.9 F)
May
36.6 C (97.9 F)
8.8 C (47.8 F)
32.2 C (90.0 F)
15.7 C (60.3 F)
Jun
35.3 C (95.5 F)
12.2 C (54.0 F)
32.5 C (90.5 F)
16.5 C (61.7 F)
Jul
34.6 C (94.3 F)
15.3 C (59.5 F)
31.7 C (89.1 F)
20.4 C (68.7 F)
Aug
35.2 C (95.4 F)
16.3 C (61.3 F)
30.5 C (86.9 F)
19.6 C (67.3 F)
Sep
32.6 C (90.7 F)
11.8 C (53.2 F)
n/a
n/a
Oct
31.9 C (89.4 F)
2.3 C (36.1 F)
n/a
n/a
Nov
28.5 C (83.3 F)
1.3 C (34.3 F)
n/a
n/a
Dec
25.2 C (77.4 F)
-2.0 C (28.4 F)
n/a
n/a
Which Years Hold Standing Records
1,464 standing records
Year with most
1,464 records at Kathmandu Airport still stand. 1989 holds the most, with 65.
Standing records at Kathmandu Airport by the year they were set
Year set
Standing records
1971
42
1972
30
1973
43
1974
38
1975
37
1976
37
1977
50
1978
56
1979
43
1980
26
1981
33
1982
34
1983
44
1984
35
1985
20
1986
23
1987
29
1988
28
1989
65
1990
45
1991
21
1992
31
1993
32
1994
25
1995
37
1996
28
1997
27
1998
57
1999
58
2000
20
2001
14
2002
8
2003
5
2004
7
2005
15
2006
21
2007
14
2008
9
2009
13
2010
5
2011
2
2012
9
2015
20
2016
23
2017
21
2018
3
2019
23
2020
9
2021
23
2022
39
2023
25
2024
44
2025
18
Wettest Day of Each Month
Sep: 194.1 mm (7.6 in)
The wettest day on record for each calendar month at Kathmandu Airport. The most was 194.1 mm (7.6 in) on 28 September 2024.
Record daily precipitation for each month at Kathmandu Airport
Month
Record daily precipitation (mm)
Date
Jan
48.0 mm (1.9 in)
17 January 2020
Feb
45.0 mm (1.8 in)
14 February 2007
Mar
39.1 mm (1.5 in)
8 March 1994
Apr
180.1 mm (7.1 in)
23 April 1980
May
65.8 mm (2.6 in)
30 May 2018
Jun
70.1 mm (2.8 in)
30 June 1983
Jul
191.0 mm (7.5 in)
10 July 1994
Aug
104.9 mm (4.1 in)
9 August 2010
Sep
194.1 mm (7.6 in)
28 September 2024
Oct
65.0 mm (2.6 in)
20 October 1999
Nov
38.4 mm (1.5 in)
23 November 2004
Dec
38.1 mm (1.5 in)
27 December 1977
Period of Record Coverage
1971 to 2025
Complete yearUnder 90 percent of days
53 years of record at Kathmandu Airport, 1971 to 2025. 22 years have data for under 90 percent of days and are left out of rankings: 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008 and others.
Cooler than the station meanWarmer than the station mean
One stripe for each of 30 complete years at Kathmandu Airport, 1971 to 2000. Blue stripes are years cooler than the station's own mean of 18.3 C (64.9 F); red stripes are warmer. The coolest year was 1971, at 17.4 C (63.3 F), and the warmest was 1999, at 19.7 C (67.5 F). The strongest colour marks a difference of 1.5 C (2.7 F).
Annual mean temperature at Kathmandu Airport as warming stripes, 1971 to 2000
Year
Annual mean temperature
Difference from the station mean
1971
17.4 C
-0.90 C
1972
17.7 C
-0.57 C
1973
17.9 C
-0.43 C
1974
17.8 C
-0.45 C
1975
17.7 C
-0.58 C
1976
17.7 C
-0.62 C
1977
17.4 C
-0.86 C
1978
17.6 C
-0.71 C
1979
18.4 C
+0.08 C
1980
18.4 C
+0.09 C
1981
18.0 C
-0.32 C
1982
18.1 C
-0.19 C
1983
17.8 C
-0.47 C
1984
18.4 C
+0.08 C
1985
18.6 C
+0.29 C
1986
18.1 C
-0.22 C
1987
18.4 C
+0.08 C
1988
18.9 C
+0.60 C
1989
18.6 C
+0.32 C
1990
18.5 C
+0.21 C
1991
18.3 C
+0.05 C
1992
18.3 C
+0.05 C
1993
18.5 C
+0.23 C
1994
18.7 C
+0.44 C
1995
18.6 C
+0.35 C
1996
18.9 C
+0.56 C
1997
18.0 C
-0.32 C
1998
19.2 C
+0.91 C
1999
19.7 C
+1.42 C
2000
19.1 C
+0.84 C
The annual mean temperature here has risen by 0.5 C (0.4 to 0.7) per decade over 1971 to 2000. In Fahrenheit: 0.9 F (0.7 to 1.2) per decade. The slope is a straight line fitted to 30 complete years; the brackets give its 95 percent interval.
Fitted temperature trends per decade at Kathmandu Airport
Measure
Per decade (C)
Per decade (F)
Period
Complete years
Reading
Annual mean temperature
0.5 C (0.4 to 0.7) per decade
0.9 F (0.7 to 1.2) per decade
1971 to 2000
30
Rise
Mean daily maximum
0.9 C (0.7 to 1.1) per decade
1.6 F (1.3 to 1.9) per decade
1971 to 2000
30
Rise
Mean daily minimum
0.15 C (-0.02 to 0.32) per decade
0.27 F (-0.04 to 0.58) per decade
1971 to 2000
30
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
1971 to 2025
Yearly extremes at Kathmandu Airport: the record and the median year
Measure
Record
Year of the record
Median year
Years with a value
Hottest day (TXx)
36.6 C (97.9 F)
1989
32.7 C (90.9 F)
53
Coldest night (TNn)
-3.5 C (25.7 F)
1978
-1.0 C (30.2 F)
47
Wettest day (Rx1day)
194.1 mm (7.6 in)
2024
59.7 mm (2.4 in)
41
Wettest five days (Rx5day)
344.1 mm (13.5 in)
1994
123.5 mm (4.9 in)
31
Longest dry spell (CDD)
70 days
2022
8 days
40
Hottest day (TXx)
The hottest day of the year at Kathmandu Airport, 1971 to 2025. The record is 36.6 C (97.9 F) in 1989, marked on the chart; the median year is 32.7 C (90.9 F).
Hottest day (TXx) at Kathmandu Airport by year
Year
Hottest day (TXx)
1971
29.6 C (85.3 F)
1972
33.0 C (91.4 F)
1973
31.7 C (89.1 F)
1974
31.7 C (89.1 F)
1975
31.4 C (88.5 F)
1976
29.8 C (85.6 F)
1977
31.4 C (88.5 F)
1978
31.0 C (87.8 F)
1979
34.0 C (93.2 F)
1980
32.3 C (90.1 F)
1981
31.2 C (88.2 F)
1982
32.9 C (91.2 F)
1983
33.7 C (92.7 F)
1984
32.0 C (89.6 F)
1985
31.7 C (89.1 F)
1986
32.0 C (89.6 F)
1987
32.7 C (90.9 F)
1988
32.5 C (90.5 F)
1989
36.6 C (97.9 F)
1990
31.5 C (88.7 F)
1991
32.1 C (89.8 F)
1992
34.6 C (94.3 F)
1993
32.2 C (90.0 F)
1994
35.2 C (95.4 F)
1995
34.4 C (93.9 F)
1996
33.0 C (91.4 F)
1997
32.5 C (90.5 F)
1998
33.0 C (91.4 F)
1999
35.6 C (96.1 F)
2000
32.4 C (90.3 F)
2001
32.7 C (90.9 F)
2002
31.6 C (88.9 F)
2003
33.1 C (91.6 F)
2004
32.7 C (90.9 F)
2005
35.0 C (95.0 F)
2006
32.2 C (90.0 F)
2007
32.3 C (90.1 F)
2008
32.9 C (91.2 F)
2009
33.7 C (92.7 F)
2010
35.2 C (95.4 F)
2011
31.4 C (88.5 F)
2012
35.2 C (95.4 F)
2015
34.6 C (94.3 F)
2016
34.2 C (93.6 F)
2017
32.0 C (89.6 F)
2018
32.6 C (90.7 F)
2019
33.5 C (92.3 F)
2020
32.3 C (90.1 F)
2021
32.7 C (90.9 F)
2022
32.6 C (90.7 F)
2023
33.3 C (91.9 F)
2024
35.3 C (95.5 F)
2025
33.5 C (92.3 F)
Coldest night (TNn)
The coldest night of the year at Kathmandu Airport, 1971 to 2025. The record is -3.5 C (25.7 F) in 1978, marked on the chart; the median year is -1.0 C (30.2 F).
Coldest night (TNn) at Kathmandu Airport by year
Year
Coldest night (TNn)
1971
-1.8 C (28.8 F)
1972
-1.2 C (29.8 F)
1973
-1.6 C (29.1 F)
1974
-2.0 C (28.4 F)
1975
-1.7 C (28.9 F)
1976
-2.0 C (28.4 F)
1977
-2.4 C (27.7 F)
1978
-3.5 C (25.7 F)
1979
-0.8 C (30.6 F)
1980
-1.0 C (30.2 F)
1981
-1.4 C (29.5 F)
1982
-1.0 C (30.2 F)
1983
-2.2 C (28.0 F)
1984
-2.6 C (27.3 F)
1985
-1.2 C (29.8 F)
1986
-0.2 C (31.6 F)
1987
-0.6 C (30.9 F)
1988
-1.0 C (30.2 F)
1989
-1.7 C (28.9 F)
1990
-1.5 C (29.3 F)
1991
-1.2 C (29.8 F)
1992
-2.2 C (28.0 F)
1993
-1.4 C (29.5 F)
1994
-1.7 C (28.9 F)
1995
-2.4 C (27.7 F)
1996
-0.6 C (30.9 F)
1997
-1.0 C (30.2 F)
1998
-3.0 C (26.6 F)
1999
-2.0 C (28.4 F)
2000
-3.0 C (26.6 F)
2001
-1.0 C (30.2 F)
2002
n/a
2003
13.0 C (55.4 F)
2004
n/a
2005
7.0 C (44.6 F)
2006
n/a
2007
21.0 C (69.8 F)
2008
6.4 C (43.5 F)
2009
n/a
2010
n/a
2011
n/a
2012
1.5 C (34.7 F)
2015
0.0 C (32.0 F)
2016
2.5 C (36.5 F)
2017
0.4 C (32.7 F)
2018
0.0 C (32.0 F)
2019
0.9 C (33.6 F)
2020
1.5 C (34.7 F)
2021
1.0 C (33.8 F)
2022
2.0 C (35.6 F)
2023
2.5 C (36.5 F)
2024
2.0 C (35.6 F)
2025
3.7 C (38.7 F)
Wettest day (Rx1day)
The wettest day of the year at Kathmandu Airport, 1971 to 2025. The record is 194.1 mm (7.6 in) in 2024, marked on the chart; the median year is 59.7 mm (2.4 in).
Wettest day (Rx1day) at Kathmandu Airport by year
Year
Wettest day (Rx1day)
1971
n/a
1972
n/a
1973
n/a
1974
n/a
1975
n/a
1976
10.9 mm (0.4 in)
1977
50.0 mm (2.0 in)
1978
70.1 mm (2.8 in)
1979
45.0 mm (1.8 in)
1980
180.1 mm (7.1 in)
1981
23.1 mm (0.9 in)
1982
35.1 mm (1.4 in)
1983
70.1 mm (2.8 in)
1984
n/a
1985
n/a
1986
n/a
1987
n/a
1988
2.0 mm (0.08 in)
1989
0.0 mm (0.00 in)
1990
n/a
1991
n/a
1992
n/a
1993
30.0 mm (1.2 in)
1994
191.0 mm (7.5 in)
1995
64.0 mm (2.5 in)
1996
54.1 mm (2.1 in)
1997
10.9 mm (0.4 in)
1998
98.0 mm (3.9 in)
1999
65.0 mm (2.6 in)
2000
30.0 mm (1.2 in)
2001
14.0 mm (0.6 in)
2002
22.1 mm (0.9 in)
2003
17.3 mm (0.7 in)
2004
99.1 mm (3.9 in)
2005
55.1 mm (2.2 in)
2006
39.4 mm (1.6 in)
2007
45.0 mm (1.8 in)
2008
80.3 mm (3.2 in)
2009
59.7 mm (2.4 in)
2010
104.9 mm (4.1 in)
2011
22.6 mm (0.9 in)
2012
134.6 mm (5.3 in)
2015
102.1 mm (4.0 in)
2016
86.1 mm (3.4 in)
2017
55.1 mm (2.2 in)
2018
69.9 mm (2.8 in)
2019
115.3 mm (4.5 in)
2020
48.0 mm (1.9 in)
2021
121.7 mm (4.8 in)
2022
76.2 mm (3.0 in)
2023
66.3 mm (2.6 in)
2024
194.1 mm (7.6 in)
2025
60.5 mm (2.4 in)
Wettest five days (Rx5day)
The wettest five days of the year at Kathmandu Airport, 1971 to 2025. The record is 344.1 mm (13.5 in) in 1994, marked on the chart; the median year is 123.5 mm (4.9 in).
Wettest five days (Rx5day) at Kathmandu Airport by year
Year
Wettest five days (Rx5day)
1971
n/a
1972
n/a
1973
n/a
1974
n/a
1975
n/a
1976
0.0 mm (0.00 in)
1977
62.9 mm (2.5 in)
1978
237.2 mm (9.3 in)
1979
80.1 mm (3.2 in)
1980
43.4 mm (1.7 in)
1981
47.0 mm (1.9 in)
1982
n/a
1983
n/a
1984
n/a
1985
n/a
1986
n/a
1987
n/a
1988
n/a
1989
n/a
1990
n/a
1991
n/a
1992
n/a
1993
33.0 mm (1.3 in)
1994
344.1 mm (13.5 in)
1995
n/a
1996
30.5 mm (1.2 in)
1997
n/a
1998
24.1 mm (0.9 in)
1999
67.6 mm (2.7 in)
2000
n/a
2001
n/a
2002
n/a
2003
0.0 mm (0.00 in)
2004
184.9 mm (7.3 in)
2005
137.1 mm (5.4 in)
2006
24.6 mm (1.0 in)
2007
85.3 mm (3.4 in)
2008
167.1 mm (6.6 in)
2009
123.5 mm (4.9 in)
2010
46.7 mm (1.8 in)
2011
n/a
2012
226.6 mm (8.9 in)
2015
148.6 mm (5.9 in)
2016
189.7 mm (7.5 in)
2017
98.2 mm (3.9 in)
2018
130.1 mm (5.1 in)
2019
191.2 mm (7.5 in)
2020
80.0 mm (3.1 in)
2021
242.7 mm (9.6 in)
2022
132.1 mm (5.2 in)
2023
157.4 mm (6.2 in)
2024
291.9 mm (11.5 in)
2025
124.3 mm (4.9 in)
Longest dry spell (CDD)
The longest dry spell of the year at Kathmandu Airport, 1971 to 2025. The record is 70 days in 2022, marked on the chart; the median year is 8 days.
Longest dry spell (CDD) at Kathmandu Airport by year
Year
Longest dry spell (CDD)
1971
n/a
1972
n/a
1973
n/a
1974
n/a
1975
n/a
1976
9 days
1977
7 days
1978
12 days
1979
5 days
1980
5 days
1981
5 days
1982
1 day
1983
n/a
1984
n/a
1985
n/a
1986
n/a
1987
n/a
1988
1 day
1989
1 day
1990
n/a
1991
n/a
1992
n/a
1993
1 day
1994
2 days
1995
2 days
1996
3 days
1997
2 days
1998
2 days
1999
2 days
2000
1 day
2001
4 days
2002
1 day
2003
12 days
2004
15 days
2005
25 days
2006
12 days
2007
9 days
2008
9 days
2009
5 days
2010
4 days
2011
2 days
2012
11 days
2015
63 days
2016
38 days
2017
57 days
2018
55 days
2019
14 days
2020
24 days
2021
44 days
2022
70 days
2023
48 days
2024
30 days
2025
59 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 Kathmandu Airport standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Kathmandu Airport 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.