Altay Weather Records (CHM00051076)
Record envelope, standing records and threshold days for Altay (CHM00051076), China, with 72 years of record.
Key Facts for Altay
- Altay (CHM00051076) is a weather station in China at 47.73 latitude and 88.08 longitude, 737 m (2,418 ft) above sea level.
- The station reports from 1954 to 2025, 72 years of record.
- 1,464 records set at Altay still stand.
- Records are tracked for tmax, tmin, prcp: an element needs 30 years of data to be eligible.
- Altay set a daily record low minimum temperature of 9.3 C (48.7 F) on 5 August 2025.
About the Station
- Location: China, 47.73 latitude, 88.08 longitude.
- Elevation: 737 m (2,418 ft).
- Period of record: 1954 to 2025, 72 years.
- Eligible elements: tmax, tmin, prcp.
Daily Record Envelope and 2026
12 days at or beyond a record| Month | Highest record high | Lowest record low | 2026 highest maximum | 2026 lowest minimum |
|---|---|---|---|---|
| Jan | 5.3 C (41.5 F) | -41.2 C (-42.2 F) | -0.8 C (30.6 F) | -29.9 C (-21.8 F) |
| Feb | 8.3 C (46.9 F) | -41.5 C (-42.7 F) | 2.7 C (36.9 F) | -25.5 C (-13.9 F) |
| Mar | 23.1 C (73.6 F) | -36.4 C (-33.5 F) | 12.4 C (54.3 F) | -20.4 C (-4.7 F) |
| Apr | 31.4 C (88.5 F) | -17.3 C (0.9 F) | 27.5 C (81.5 F) | -3.4 C (25.9 F) |
| May | 35.9 C (96.6 F) | -4.3 C (24.3 F) | 33.9 C (93.0 F) | 1.4 C (34.5 F) |
| Jun | 37.0 C (98.6 F) | 1.9 C (35.4 F) | 35.6 C (96.1 F) | 10.2 C (50.4 F) |
| Jul | 39.5 C (103.1 F) | 6.0 C (42.8 F) | 36.3 C (97.3 F) | 10.4 C (50.7 F) |
| Aug | 37.6 C (99.7 F) | 0.4 C (32.7 F) | 31.5 C (88.7 F) | 8.5 C (47.3 F) |
| Sep | 35.0 C (95.0 F) | -6.2 C (20.8 F) | n/a | n/a |
| Oct | 27.7 C (81.9 F) | -14.9 C (5.2 F) | n/a | n/a |
| Nov | 17.8 C (64.0 F) | -40.8 C (-41.4 F) | n/a | n/a |
| Dec | 6.6 C (43.9 F) | -43.5 C (-46.3 F) | n/a | n/a |
Which Years Hold Standing Records
1,464 standing records| Year set | Standing records |
|---|---|
| 1954 | 39 |
| 1955 | 21 |
| 1956 | 26 |
| 1957 | 33 |
| 1958 | 30 |
| 1959 | 22 |
| 1960 | 23 |
| 1961 | 26 |
| 1962 | 25 |
| 1963 | 15 |
| 1964 | 18 |
| 1965 | 13 |
| 1966 | 47 |
| 1967 | 12 |
| 1968 | 28 |
| 1969 | 54 |
| 1970 | 17 |
| 1971 | 17 |
| 1972 | 19 |
| 1973 | 22 |
| 1974 | 32 |
| 1975 | 15 |
| 1976 | 18 |
| 1977 | 11 |
| 1978 | 15 |
| 1979 | 27 |
| 1980 | 21 |
| 1981 | 15 |
| 1982 | 16 |
| 1983 | 28 |
| 1984 | 32 |
| 1985 | 13 |
| 1986 | 16 |
| 1987 | 24 |
| 1988 | 26 |
| 1989 | 32 |
| 1990 | 12 |
| 1991 | 14 |
| 1992 | 19 |
| 1993 | 16 |
| 1994 | 21 |
| 1995 | 21 |
| 1996 | 19 |
| 1997 | 25 |
| 1998 | 19 |
| 1999 | 26 |
| 2000 | 19 |
| 2001 | 26 |
| 2002 | 21 |
| 2003 | 29 |
| 2004 | 14 |
| 2005 | 12 |
| 2006 | 20 |
| 2007 | 24 |
| 2008 | 33 |
| 2009 | 9 |
| 2010 | 32 |
| 2011 | 17 |
| 2012 | 7 |
| 2013 | 11 |
| 2014 | 12 |
| 2015 | 13 |
| 2016 | 4 |
| 2017 | 5 |
| 2018 | 10 |
| 2019 | 7 |
| 2020 | 18 |
| 2021 | 19 |
| 2022 | 24 |
| 2023 | 19 |
| 2024 | 7 |
| 2025 | 12 |
All-Time Record Progression
4 new records| Date | Kind | Detail |
|---|---|---|
| 1992-07-16 | Record high minimum temperature | Record high minimum temperature 26.7 C (80.1 F) |
| 1993-07-27 | Record daily precipitation | Record daily precipitation 41.2 mm (1.6 in) |
| 2015-07-22 | Record high maximum temperature | Record high maximum temperature 39.5 C (103.1 F) |
| 2020-03-18 | Record daily precipitation | Record daily precipitation 59.9 mm (2.4 in) |
Wettest Day of Each Month
Mar: 59.9 mm (2.4 in)| Month | Record daily precipitation (mm) | Date |
|---|---|---|
| Jan | 22.4 mm (0.9 in) | 9 January 2024 |
| Feb | 21.4 mm (0.8 in) | 20 February 1958 |
| Mar | 59.9 mm (2.4 in) | 18 March 2020 |
| Apr | 22.8 mm (0.9 in) | 8 April 1959 |
| May | 22.5 mm (0.9 in) | 9 May 1966 |
| Jun | 40.5 mm (1.6 in) | 18 June 1957 |
| Jul | 41.2 mm (1.6 in) | 27 July 1993 |
| Aug | 28.4 mm (1.1 in) | 14 August 1973 |
| Sep | 38.8 mm (1.5 in) | 2 September 1957 |
| Oct | 18.5 mm (0.7 in) | 29 October 2023 |
| Nov | 59.9 mm (2.4 in) | 25 November 2021 |
| Dec | 30.0 mm (1.2 in) | 6 December 2019 |
Period of Record Coverage
1954 to 2025| Year | Days with data | Share of year | Complete |
|---|---|---|---|
| 1954 | 365 | 100% | Yes |
| 1955 | 365 | 100% | Yes |
| 1956 | 366 | 100% | Yes |
| 1957 | 365 | 100% | Yes |
| 1958 | 365 | 100% | Yes |
| 1959 | 365 | 100% | Yes |
| 1960 | 366 | 100% | Yes |
| 1961 | 364 | 100% | Yes |
| 1962 | 365 | 100% | Yes |
| 1963 | 365 | 100% | Yes |
| 1964 | 366 | 100% | Yes |
| 1965 | 365 | 100% | Yes |
| 1966 | 365 | 100% | Yes |
| 1967 | 365 | 100% | Yes |
| 1968 | 366 | 100% | Yes |
| 1969 | 365 | 100% | Yes |
| 1970 | 365 | 100% | Yes |
| 1971 | 365 | 100% | Yes |
| 1972 | 366 | 100% | Yes |
| 1973 | 365 | 100% | Yes |
| 1974 | 365 | 100% | Yes |
| 1975 | 365 | 100% | Yes |
| 1976 | 365 | 100% | Yes |
| 1977 | 365 | 100% | 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 | 365 | 100% | Yes |
| 1994 | 365 | 100% | Yes |
| 1995 | 365 | 100% | Yes |
| 1996 | 366 | 100% | Yes |
| 1997 | 365 | 100% | Yes |
| 1998 | 365 | 100% | Yes |
| 1999 | 365 | 100% | Yes |
| 2000 | 366 | 100% | Yes |
| 2001 | 365 | 100% | Yes |
| 2002 | 365 | 100% | Yes |
| 2003 | 365 | 100% | Yes |
| 2004 | 366 | 100% | Yes |
| 2005 | 365 | 100% | Yes |
| 2006 | 365 | 100% | Yes |
| 2007 | 365 | 100% | Yes |
| 2008 | 366 | 100% | Yes |
| 2009 | 365 | 100% | Yes |
| 2010 | 365 | 100% | Yes |
| 2011 | 365 | 100% | Yes |
| 2012 | 366 | 100% | Yes |
| 2013 | 176 | 48% | No |
| 2014 | 355 | 97% | Yes |
| 2015 | 151 | 41% | No |
| 2016 | 2 | 1% | No |
| 2017 | 2 | 1% | No |
| 2018 | 28 | 8% | No |
| 2019 | 69 | 19% | No |
| 2020 | 364 | 99% | Yes |
| 2021 | 358 | 98% | Yes |
| 2022 | 359 | 98% | Yes |
| 2023 | 345 | 95% | Yes |
| 2024 | 342 | 93% | Yes |
| 2025 | 236 | 65% | No |
Latest Records
20| Date | Station | Record | Value | Beat old record by | Old record stood | Significance |
|---|---|---|---|---|---|---|
| 5 August 2025 | Altay, CN | daily low min | 9.3 C (48.7 F) | 0.2 C (0.4 F) | 32 years | 16 of 100 (Routine) |
| 29 July 2025 | Altay, CN | daily high max | 35.9 C (96.6 F) | 0.2 C (0.4 F) | 63 years | 25 of 100 (Routine) |
| 28 July 2025 | Altay, CN | daily high max | 36.3 C (97.3 F) | 0.4 C (0.7 F) | 2 years | 8 of 100 (Routine) |
| 27 July 2025 | Altay, CN | daily high max | 36.3 C (97.3 F) | 0.2 C (0.4 F) | 36 years | 17 of 100 (Routine) |
| 19 July 2025 | Altay, CN | daily high max | 35.1 C (95.2 F) | 0.3 C (0.5 F) | 23 years | 13 of 100 (Routine) |
| 21 June 2025 | Altay, CN | daily high max | 35.6 C (96.1 F) | 1.1 C (2.0 F) | 15 years | 13 of 100 (Routine) |
| 27 May 2025 | Altay, CN | daily rain | 14.5 mm (0.6 in) | 6.9 mm (0.27 in) | 36 years | 20 of 100 (Routine) |
| 27 May 2025 | Altay, CN | daily low min | 1.9 C (35.4 F) | 0.3 C (0.5 F) | 12 years | 10 of 100 (Routine) |
| 26 May 2025 | Altay, CN | daily rain | 6.1 mm (0.24 in) | 0.3 mm (0.01 in) | 12 years | 10 of 100 (Routine) |
| 19 May 2025 | Altay, CN | daily high max | 33.9 C (93.0 F) | 0.4 C (0.7 F) | 20 years | 13 of 100 (Routine) |
| 18 May 2025 | Altay, CN | daily high max | 33.9 C (93.0 F) | 0.2 C (0.4 F) | 20 years | 13 of 100 (Routine) |
| 15 April 2025 | Altay, CN | daily high max | 26.4 C (79.5 F) | 1.6 C (2.9 F) | 14 years | 13 of 100 (Routine) |
| 14 April 2025 | Altay, CN | daily high max | 26.7 C (80.1 F) | 2.4 C (4.3 F) | 14 years | 14 of 100 (Routine) |
| 13 April 2025 | Altay, CN | daily high max | 26.7 C (80.1 F) | 2.0 C (3.6 F) | 12 years | 13 of 100 (Routine) |
| 9 April 2025 | Altay, CN | daily rain | 8.9 mm (0.35 in) | 4.0 mm (0.16 in) | 19 years | 20 of 100 (Routine) |
| 2 April 2025 | Altay, CN | daily rain | 9.9 mm (0.39 in) | 1.7 mm (0.07 in) | 20 years | 18 of 100 (Routine) |
| 1 April 2025 | Altay, CN | daily rain | 9.9 mm (0.39 in) | 3.0 mm (0.12 in) | 62 years | 20 of 100 (Routine) |
| 30 March 2025 | Altay, CN | daily rain | 20.1 mm (0.8 in) | 13.5 mm (0.5 in) | 8 years | 20 of 100 (Routine) |
| 29 March 2025 | Altay, CN | daily rain | 30.0 mm (1.2 in) | 22.3 mm (0.9 in) | 56 years | 64 of 100 (Major) |
| 9 March 2025 | Altay, CN | daily rain | 10.9 mm (0.4 in) | 6.2 mm (0.24 in) | 64 years | 20 of 100 (Routine) |
Climate Trend
64 complete years, 1954 to 2024| Year | Annual mean temperature | Difference from the station mean |
|---|---|---|
| 1954 | 2.1 C | -2.48 C |
| 1955 | 3.9 C | -0.68 C |
| 1956 | 3.1 C | -1.47 C |
| 1957 | 3.7 C | -0.86 C |
| 1958 | 3.3 C | -1.28 C |
| 1959 | 3.5 C | -1.11 C |
| 1960 | 2.9 C | -1.74 C |
| 1961 | 4.2 C | -0.40 C |
| 1962 | 5.9 C | +1.29 C |
| 1963 | 6.1 C | +1.45 C |
| 1964 | 4.5 C | -0.11 C |
| 1965 | 5.2 C | +0.62 C |
| 1966 | 3.0 C | -1.62 C |
| 1967 | 3.6 C | -0.96 C |
| 1968 | 3.6 C | -0.98 C |
| 1969 | 1.9 C | -2.69 C |
| 1970 | 3.7 C | -0.90 C |
| 1971 | 4.5 C | -0.13 C |
| 1972 | 3.3 C | -1.35 C |
| 1973 | 4.6 C | 0.00 C |
| 1974 | 3.4 C | -1.17 C |
| 1975 | 4.5 C | -0.11 C |
| 1976 | 3.6 C | -0.96 C |
| 1977 | 4.8 C | +0.17 C |
| 1978 | 5.4 C | +0.79 C |
| 1979 | 4.0 C | -0.61 C |
| 1980 | 4.4 C | -0.23 C |
| 1981 | 4.7 C | +0.08 C |
| 1982 | 6.1 C | +1.46 C |
| 1983 | 5.8 C | +1.17 C |
| 1984 | 2.3 C | -2.32 C |
| 1985 | 3.5 C | -1.08 C |
| 1986 | 4.7 C | +0.08 C |
| 1987 | 4.0 C | -0.60 C |
| 1988 | 4.1 C | -0.48 C |
| 1989 | 5.7 C | +1.14 C |
| 1990 | 5.6 C | +0.98 C |
| 1991 | 5.4 C | +0.77 C |
| 1992 | 4.7 C | +0.08 C |
| 1993 | 3.8 C | -0.78 C |
| 1994 | 5.1 C | +0.53 C |
| 1995 | 5.9 C | +1.28 C |
| 1996 | 4.3 C | -0.26 C |
| 1997 | 6.2 C | +1.60 C |
| 1998 | 5.0 C | +0.43 C |
| 1999 | 5.5 C | +0.86 C |
| 2000 | 4.7 C | +0.13 C |
| 2001 | 4.7 C | +0.11 C |
| 2002 | 6.0 C | +1.41 C |
| 2003 | 4.6 C | -0.04 C |
| 2004 | 5.4 C | +0.81 C |
| 2005 | 4.7 C | +0.13 C |
| 2006 | 5.7 C | +1.06 C |
| 2007 | 6.7 C | +2.14 C |
| 2008 | 6.0 C | +1.43 C |
| 2009 | 5.1 C | +0.46 C |
| 2010 | 3.7 C | -0.91 C |
| 2011 | 5.0 C | +0.35 C |
| 2012 | 4.4 C | -0.17 C |
| 2020 | 5.9 C | +1.27 C |
| 2021 | 5.5 C | +0.85 C |
| 2022 | 5.8 C | +1.17 C |
| 2023 | 5.9 C | +1.28 C |
| 2024 | 5.9 C | +1.30 C |
The annual mean temperature here has risen by 0.3 C (0.2 to 0.4) per decade over 1954 to 2024. In Fahrenheit: 0.6 F (0.4 to 0.8) per decade. The slope is a straight line fitted to 64 complete years; the brackets give its 95 percent interval.
| Measure | Per decade (C) | Per decade (F) | Period | Complete years | Reading |
|---|---|---|---|---|---|
| Annual mean temperature | 0.3 C (0.2 to 0.4) per decade | 0.6 F (0.4 to 0.8) per decade | 1954 to 2024 | 64 | Rise |
| Mean daily maximum | 0.4 C (0.3 to 0.5) per decade | 0.7 F (0.5 to 0.9) per decade | 1954 to 2024 | 64 | Rise |
| Mean daily minimum | 0.2 C (0.1 to 0.4) per decade | 0.4 F (0.2 to 0.7) per decade | 1954 to 2024 | 64 | Rise |
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
1954 to 2025| Measure | Record | Year of the record | Median year | Years with a value |
|---|---|---|---|---|
| Hottest day (TXx) | 39.5 C (103.1 F) | 2015 | 35.0 C (95.0 F) | 72 |
| Coldest night (TNn) | -43.5 C (-46.3 F) | 1966 | -34.3 C (-29.7 F) | 72 |
| Wettest day (Rx1day) | 59.9 mm (2.4 in) | 2020 | 17.3 mm (0.7 in) | 72 |
| Wettest five days (Rx5day) | 119.8 mm (4.7 in) | 2020 | 26.7 mm (1.1 in) | 72 |
| Longest dry spell (CDD) | 110 days | 1997 | 39 days | 72 |
Hottest day (TXx)
| Year | Hottest day (TXx) |
|---|---|
| 1954 | 34.8 C (94.6 F) |
| 1955 | 35.4 C (95.7 F) |
| 1956 | 33.8 C (92.8 F) |
| 1957 | 35.1 C (95.2 F) |
| 1958 | 33.5 C (92.3 F) |
| 1959 | 35.0 C (95.0 F) |
| 1960 | 33.9 C (93.0 F) |
| 1961 | 33.6 C (92.5 F) |
| 1962 | 37.6 C (99.7 F) |
| 1963 | 35.8 C (96.4 F) |
| 1964 | 35.3 C (95.5 F) |
| 1965 | 36.7 C (98.1 F) |
| 1966 | 33.7 C (92.7 F) |
| 1967 | 34.7 C (94.5 F) |
| 1968 | 36.3 C (97.3 F) |
| 1969 | 34.5 C (94.1 F) |
| 1970 | 32.7 C (90.9 F) |
| 1971 | 33.9 C (93.0 F) |
| 1972 | 36.3 C (97.3 F) |
| 1973 | 34.7 C (94.5 F) |
| 1974 | 36.4 C (97.5 F) |
| 1975 | 35.8 C (96.4 F) |
| 1976 | 32.8 C (91.0 F) |
| 1977 | 35.4 C (95.7 F) |
| 1978 | 34.7 C (94.5 F) |
| 1979 | 36.4 C (97.5 F) |
| 1980 | 36.0 C (96.8 F) |
| 1981 | 32.4 C (90.3 F) |
| 1982 | 34.7 C (94.5 F) |
| 1983 | 33.9 C (93.0 F) |
| 1984 | 33.9 C (93.0 F) |
| 1985 | 32.0 C (89.6 F) |
| 1986 | 34.3 C (93.7 F) |
| 1987 | 35.0 C (95.0 F) |
| 1988 | 34.4 C (93.9 F) |
| 1989 | 36.1 C (97.0 F) |
| 1990 | 34.0 C (93.2 F) |
| 1991 | 35.6 C (96.1 F) |
| 1992 | 37.5 C (99.5 F) |
| 1993 | 31.2 C (88.2 F) |
| 1994 | 32.3 C (90.1 F) |
| 1995 | 37.1 C (98.8 F) |
| 1996 | 35.0 C (95.0 F) |
| 1997 | 34.6 C (94.3 F) |
| 1998 | 35.0 C (95.0 F) |
| 1999 | 36.0 C (96.8 F) |
| 2000 | 35.0 C (95.0 F) |
| 2001 | 34.0 C (93.2 F) |
| 2002 | 37.5 C (99.5 F) |
| 2003 | 33.0 C (91.4 F) |
| 2004 | 37.3 C (99.1 F) |
| 2005 | 35.3 C (95.5 F) |
| 2006 | 36.7 C (98.1 F) |
| 2007 | 36.0 C (96.8 F) |
| 2008 | 36.9 C (98.4 F) |
| 2009 | 33.8 C (92.8 F) |
| 2010 | 37.0 C (98.6 F) |
| 2011 | 36.6 C (97.9 F) |
| 2012 | 36.2 C (97.2 F) |
| 2013 | 32.3 C (90.1 F) |
| 2014 | 35.8 C (96.4 F) |
| 2015 | 39.5 C (103.1 F) |
| 2016 | -5.9 C (21.4 F) |
| 2017 | 0.0 C (32.0 F) |
| 2018 | 30.8 C (87.4 F) |
| 2019 | 17.8 C (64.0 F) |
| 2020 | 34.5 C (94.1 F) |
| 2021 | 36.5 C (97.7 F) |
| 2022 | 36.1 C (97.0 F) |
| 2023 | 36.8 C (98.2 F) |
| 2024 | 34.7 C (94.5 F) |
| 2025 | 36.3 C (97.3 F) |
Coldest night (TNn)
| Year | Coldest night (TNn) |
|---|---|
| 1954 | -39.0 C (-38.2 F) |
| 1955 | -39.9 C (-39.8 F) |
| 1956 | -40.3 C (-40.5 F) |
| 1957 | -38.0 C (-36.4 F) |
| 1958 | -39.2 C (-38.6 F) |
| 1959 | -36.3 C (-33.3 F) |
| 1960 | -35.5 C (-31.9 F) |
| 1961 | -34.3 C (-29.7 F) |
| 1962 | -31.2 C (-24.2 F) |
| 1963 | -28.1 C (-18.6 F) |
| 1964 | -34.5 C (-30.1 F) |
| 1965 | -37.8 C (-36.0 F) |
| 1966 | -43.5 C (-46.3 F) |
| 1967 | -34.3 C (-29.7 F) |
| 1968 | -42.0 C (-43.6 F) |
| 1969 | -41.2 C (-42.2 F) |
| 1970 | -31.6 C (-24.9 F) |
| 1971 | -36.4 C (-33.5 F) |
| 1972 | -39.5 C (-39.1 F) |
| 1973 | -38.2 C (-36.8 F) |
| 1974 | -41.5 C (-42.7 F) |
| 1975 | -33.9 C (-29.0 F) |
| 1976 | -41.6 C (-42.9 F) |
| 1977 | -36.4 C (-33.5 F) |
| 1978 | -33.5 C (-28.3 F) |
| 1979 | -37.3 C (-35.1 F) |
| 1980 | -33.2 C (-27.8 F) |
| 1981 | -34.0 C (-29.2 F) |
| 1982 | -24.1 C (-11.4 F) |
| 1983 | -26.7 C (-16.1 F) |
| 1984 | -37.7 C (-35.9 F) |
| 1985 | -30.3 C (-22.5 F) |
| 1986 | -31.8 C (-25.2 F) |
| 1987 | -40.8 C (-41.4 F) |
| 1988 | -36.8 C (-34.2 F) |
| 1989 | -28.6 C (-19.5 F) |
| 1990 | -33.4 C (-28.1 F) |
| 1991 | -36.2 C (-33.2 F) |
| 1992 | -28.3 C (-18.9 F) |
| 1993 | -30.4 C (-22.7 F) |
| 1994 | -33.0 C (-27.4 F) |
| 1995 | -27.7 C (-17.9 F) |
| 1996 | -34.4 C (-29.9 F) |
| 1997 | -33.7 C (-28.7 F) |
| 1998 | -33.6 C (-28.5 F) |
| 1999 | -30.8 C (-23.4 F) |
| 2000 | -37.1 C (-34.8 F) |
| 2001 | -41.7 C (-43.1 F) |
| 2002 | -29.8 C (-21.6 F) |
| 2003 | -33.7 C (-28.7 F) |
| 2004 | -31.7 C (-25.1 F) |
| 2005 | -38.5 C (-37.3 F) |
| 2006 | -36.8 C (-34.2 F) |
| 2007 | -28.1 C (-18.6 F) |
| 2008 | -34.3 C (-29.7 F) |
| 2009 | -34.5 C (-30.1 F) |
| 2010 | -39.5 C (-39.1 F) |
| 2011 | -38.9 C (-38.0 F) |
| 2012 | -39.1 C (-38.4 F) |
| 2013 | -33.4 C (-28.1 F) |
| 2014 | -33.4 C (-28.1 F) |
| 2015 | -30.7 C (-23.3 F) |
| 2016 | -31.0 C (-23.8 F) |
| 2017 | -28.3 C (-18.9 F) |
| 2018 | -36.8 C (-34.2 F) |
| 2019 | -34.2 C (-29.6 F) |
| 2020 | -29.2 C (-20.6 F) |
| 2021 | -32.1 C (-25.8 F) |
| 2022 | -35.1 C (-31.2 F) |
| 2023 | -33.5 C (-28.3 F) |
| 2024 | -37.5 C (-35.5 F) |
| 2025 | -29.9 C (-21.8 F) |
Wettest day (Rx1day)
| Year | Wettest day (Rx1day) |
|---|---|
| 1954 | 17.8 mm (0.7 in) |
| 1955 | 17.5 mm (0.7 in) |
| 1956 | 16.6 mm (0.7 in) |
| 1957 | 40.5 mm (1.6 in) |
| 1958 | 21.4 mm (0.8 in) |
| 1959 | 22.8 mm (0.9 in) |
| 1960 | 22.1 mm (0.9 in) |
| 1961 | 23.6 mm (0.9 in) |
| 1962 | 8.0 mm (0.31 in) |
| 1963 | 10.4 mm (0.4 in) |
| 1964 | 19.5 mm (0.8 in) |
| 1965 | 15.3 mm (0.6 in) |
| 1966 | 22.5 mm (0.9 in) |
| 1967 | 10.5 mm (0.4 in) |
| 1968 | 19.3 mm (0.8 in) |
| 1969 | 12.7 mm (0.5 in) |
| 1970 | 14.8 mm (0.6 in) |
| 1971 | 17.1 mm (0.7 in) |
| 1972 | 16.9 mm (0.7 in) |
| 1973 | 28.4 mm (1.1 in) |
| 1974 | 9.4 mm (0.37 in) |
| 1975 | 8.5 mm (0.33 in) |
| 1976 | 13.2 mm (0.5 in) |
| 1977 | 10.6 mm (0.4 in) |
| 1978 | 17.0 mm (0.7 in) |
| 1979 | 24.6 mm (1.0 in) |
| 1980 | 18.1 mm (0.7 in) |
| 1981 | 15.2 mm (0.6 in) |
| 1982 | 12.4 mm (0.5 in) |
| 1983 | 11.5 mm (0.5 in) |
| 1984 | 30.9 mm (1.2 in) |
| 1985 | 10.6 mm (0.4 in) |
| 1986 | 16.7 mm (0.7 in) |
| 1987 | 16.9 mm (0.7 in) |
| 1988 | 11.6 mm (0.5 in) |
| 1989 | 12.7 mm (0.5 in) |
| 1990 | 13.9 mm (0.5 in) |
| 1991 | 12.4 mm (0.5 in) |
| 1992 | 17.3 mm (0.7 in) |
| 1993 | 41.2 mm (1.6 in) |
| 1994 | 21.3 mm (0.8 in) |
| 1995 | 17.4 mm (0.7 in) |
| 1996 | 25.2 mm (1.0 in) |
| 1997 | 21.1 mm (0.8 in) |
| 1998 | 16.1 mm (0.6 in) |
| 1999 | 11.0 mm (0.4 in) |
| 2000 | 16.9 mm (0.7 in) |
| 2001 | 35.8 mm (1.4 in) |
| 2002 | 15.8 mm (0.6 in) |
| 2003 | 15.0 mm (0.6 in) |
| 2004 | 17.2 mm (0.7 in) |
| 2005 | 23.1 mm (0.9 in) |
| 2006 | 19.6 mm (0.8 in) |
| 2007 | 25.7 mm (1.0 in) |
| 2008 | 12.1 mm (0.5 in) |
| 2009 | 12.3 mm (0.5 in) |
| 2010 | 20.0 mm (0.8 in) |
| 2011 | 28.1 mm (1.1 in) |
| 2012 | 20.8 mm (0.8 in) |
| 2013 | 11.7 mm (0.5 in) |
| 2014 | 9.7 mm (0.38 in) |
| 2015 | 20.6 mm (0.8 in) |
| 2016 | 11.9 mm (0.5 in) |
| 2017 | 27.9 mm (1.1 in) |
| 2018 | 15.0 mm (0.6 in) |
| 2019 | 30.0 mm (1.2 in) |
| 2020 | 59.9 mm (2.4 in) |
| 2021 | 59.9 mm (2.4 in) |
| 2022 | 20.3 mm (0.8 in) |
| 2023 | 50.0 mm (2.0 in) |
| 2024 | 22.4 mm (0.9 in) |
| 2025 | 30.0 mm (1.2 in) |
Wettest five days (Rx5day)
| Year | Wettest five days (Rx5day) |
|---|---|
| 1954 | 27.5 mm (1.1 in) |
| 1955 | 34.4 mm (1.4 in) |
| 1956 | 23.6 mm (0.9 in) |
| 1957 | 44.0 mm (1.7 in) |
| 1958 | 28.5 mm (1.1 in) |
| 1959 | 23.3 mm (0.9 in) |
| 1960 | 29.7 mm (1.2 in) |
| 1961 | 25.7 mm (1.0 in) |
| 1962 | 13.1 mm (0.5 in) |
| 1963 | 15.0 mm (0.6 in) |
| 1964 | 35.5 mm (1.4 in) |
| 1965 | 23.0 mm (0.9 in) |
| 1966 | 37.9 mm (1.5 in) |
| 1967 | 25.5 mm (1.0 in) |
| 1968 | 29.2 mm (1.1 in) |
| 1969 | 20.6 mm (0.8 in) |
| 1970 | 19.6 mm (0.8 in) |
| 1971 | 23.0 mm (0.9 in) |
| 1972 | 25.1 mm (1.0 in) |
| 1973 | 37.8 mm (1.5 in) |
| 1974 | 18.7 mm (0.7 in) |
| 1975 | 16.1 mm (0.6 in) |
| 1976 | 24.7 mm (1.0 in) |
| 1977 | 12.9 mm (0.5 in) |
| 1978 | 18.3 mm (0.7 in) |
| 1979 | 25.9 mm (1.0 in) |
| 1980 | 33.9 mm (1.3 in) |
| 1981 | 22.4 mm (0.9 in) |
| 1982 | 17.3 mm (0.7 in) |
| 1983 | 22.5 mm (0.9 in) |
| 1984 | 35.1 mm (1.4 in) |
| 1985 | 17.1 mm (0.7 in) |
| 1986 | 21.9 mm (0.9 in) |
| 1987 | 29.8 mm (1.2 in) |
| 1988 | 32.5 mm (1.3 in) |
| 1989 | 16.5 mm (0.6 in) |
| 1990 | 19.9 mm (0.8 in) |
| 1991 | 16.9 mm (0.7 in) |
| 1992 | 34.6 mm (1.4 in) |
| 1993 | 55.9 mm (2.2 in) |
| 1994 | 34.5 mm (1.4 in) |
| 1995 | 23.2 mm (0.9 in) |
| 1996 | 47.4 mm (1.9 in) |
| 1997 | 44.1 mm (1.7 in) |
| 1998 | 27.6 mm (1.1 in) |
| 1999 | 12.8 mm (0.5 in) |
| 2000 | 30.2 mm (1.2 in) |
| 2001 | 45.2 mm (1.8 in) |
| 2002 | 24.9 mm (1.0 in) |
| 2003 | 35.4 mm (1.4 in) |
| 2004 | 30.8 mm (1.2 in) |
| 2005 | 45.3 mm (1.8 in) |
| 2006 | 32.5 mm (1.3 in) |
| 2007 | 49.2 mm (1.9 in) |
| 2008 | 15.5 mm (0.6 in) |
| 2009 | 20.7 mm (0.8 in) |
| 2010 | 38.5 mm (1.5 in) |
| 2011 | 36.6 mm (1.4 in) |
| 2012 | 30.2 mm (1.2 in) |
| 2013 | 23.0 mm (0.9 in) |
| 2014 | 20.1 mm (0.8 in) |
| 2015 | 25.9 mm (1.0 in) |
| 2016 | 29.7 mm (1.2 in) |
| 2017 | 28.5 mm (1.1 in) |
| 2018 | 25.4 mm (1.0 in) |
| 2019 | 21.8 mm (0.9 in) |
| 2020 | 119.8 mm (4.7 in) |
| 2021 | 21.5 mm (0.8 in) |
| 2022 | 37.3 mm (1.5 in) |
| 2023 | 64.9 mm (2.6 in) |
| 2024 | 31.4 mm (1.2 in) |
| 2025 | 79.8 mm (3.1 in) |
Longest dry spell (CDD)
| Year | Longest dry spell (CDD) |
|---|---|
| 1954 | 28 days |
| 1955 | 41 days |
| 1956 | 51 days |
| 1957 | 41 days |
| 1958 | 38 days |
| 1959 | 36 days |
| 1960 | 24 days |
| 1961 | 65 days |
| 1962 | 75 days |
| 1963 | 33 days |
| 1964 | 32 days |
| 1965 | 81 days |
| 1966 | 37 days |
| 1967 | 95 days |
| 1968 | 49 days |
| 1969 | 36 days |
| 1970 | 32 days |
| 1971 | 42 days |
| 1972 | 36 days |
| 1973 | 42 days |
| 1974 | 47 days |
| 1975 | 51 days |
| 1976 | 39 days |
| 1977 | 43 days |
| 1978 | 33 days |
| 1979 | 41 days |
| 1980 | 36 days |
| 1981 | 39 days |
| 1982 | 46 days |
| 1983 | 58 days |
| 1984 | 44 days |
| 1985 | 68 days |
| 1986 | 71 days |
| 1987 | 40 days |
| 1988 | 26 days |
| 1989 | 52 days |
| 1990 | 50 days |
| 1991 | 41 days |
| 1992 | 56 days |
| 1993 | 27 days |
| 1994 | 36 days |
| 1995 | 39 days |
| 1996 | 62 days |
| 1997 | 110 days |
| 1998 | 44 days |
| 1999 | 27 days |
| 2000 | 71 days |
| 2001 | 35 days |
| 2002 | 50 days |
| 2003 | 33 days |
| 2004 | 34 days |
| 2005 | 36 days |
| 2006 | 33 days |
| 2007 | 46 days |
| 2008 | 47 days |
| 2009 | 29 days |
| 2010 | 31 days |
| 2011 | 29 days |
| 2012 | 45 days |
| 2013 | 4 days |
| 2014 | 5 days |
| 2015 | 4 days |
| 2016 | 6 days |
| 2017 | 7 days |
| 2018 | 4 days |
| 2019 | 6 days |
| 2020 | 71 days |
| 2021 | 42 days |
| 2022 | 49 days |
| 2023 | 39 days |
| 2024 | 28 days |
| 2025 | 17 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
64 years with a frostAcross 64 years with a frost, the median last spring frost at Altay falls on 1 May and the median first autumn frost on 28 September, which leaves a median of 151 days between them.
In 1988 to 2024 the median growing season was 152 days. That is 2 days more than in 1954 to 1983.
Fitted over all years, the growing season changes by +1.5 days per decade at this station.
| Measure | Median, all years | Earliest period (1954 to 1983) | Recent period (1988 to 2024) | Recent against earliest | Fitted trend |
|---|---|---|---|---|---|
| Last spring frost | 1 May | 3 May | 2 May | 1 day earlier | -1.0 days per decade |
| First autumn frost | 28 September | 29 September | 27 September | 2 days earlier | +0.4 days per decade |
| Growing days | 151 days | 150 days | 152 days | 2 days more | +1.5 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
60 years, 1954 to 2023A day with at least 16.8 mm (0.7 in) of rain is expected about once in 2 years. A day with at least 49.2 mm (1.9 in) of rain is expected about once in 100 years.
| Expected about once in | A day with at least | Note |
|---|---|---|
| 2 years | 16.8 mm (0.7 in) | |
| 5 years | 23.6 mm (0.9 in) | |
| 10 years | 28.8 mm (1.1 in) | |
| 25 years | 36.2 mm (1.4 in) | |
| 50 years | 42.4 mm (1.7 in) | |
| 100 years | 49.2 mm (1.9 in) | Longer than the 60 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, 60 years of values from 1954 to 2023.
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: 50.0 mm (2.0 in) in 2023; 41.2 mm (1.6 in) in 1993; 40.5 mm (1.6 in) in 1957.
Station Changes
2 suspected2 changes were suspected in the annual mean temperature of Altay, at 1979 and 1997. Each is measured against neighbouring stations.
- Relative to 3 neighbouring stations, the station's annual mean temperature from 1979 ran 0.4 C (0.7 F) lower than in the years before (likely change).
- Relative to 3 neighbouring stations, the station's annual mean temperature from 1997 ran 0.2 C (0.3 F) lower than in the years before (possible change).
| Year | Shift (C) | Shift (F) | Strength | Neighbours |
|---|---|---|---|---|
| 1979 | -0.4 | -0.7 | likely | 3 |
| 1997 | -0.2 | -0.3 | possible | 3 |
Possible change at the station (a move, a new instrument or a new site); the record is kept as measured. A "likely" change has a larger test statistic than a "possible" one. Neither says why the station differs from its neighbours. How changes are found, and the largest ones.
Climate Twins
2003 to 2024 against 1961 to 1990Over 2003 to 2024, Altay had a mean temperature of 5.3 C (41.6 F) and 238.1 mm (9.4 in) of rain a year. The 3 stations whose 1961 to 1990 climate was closest to that are Qitai (China, 429 km away), Jurh (China, 2,027 km away) and Qian Gorlos (China, 2,809 km away).
| Twin station | Country | Distance away | Mean temperature, 1961-1990 | Rain a year, 1961-1990 | Climate difference |
|---|---|---|---|---|---|
| Qitai | China | 429 km (267 mi) | 5.7 C (42.3 F) | 173.6 mm (6.8 in) | 1.08 |
| Jurh | China | 2,027 km (1,260 mi) | 5.1 C (41.1 F) | 210.5 mm (8.3 in) | 1.19 |
| Qian Gorlos | China | 2,809 km (1,745 mi) | 5.2 C (41.3 F) | 435.2 mm (17.1 in) | 1.36 |
Twins are stations, not cities. A twin is one of the three stations at least 100 km away whose earlier climate is closest to this station's recent one, so a close match does not mean the two places look alike in other ways. A station move or a gap in a record can change that station's averages. The list describes past climate; it is not a forecast and does not say what caused any change. How twins are found, and a search for any station.
Download the Data
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 2026-10-16 (16 October 2026). Records are computed by this site and are not official.
Data as of . Last revised (2025-12-31).