Yan An Weather Records (CHM00053845)
Record envelope, standing records and threshold days for Yan An (CHM00053845), China, with 75 years of record.
Key Facts for Yan An
- Yan An (CHM00053845) is a weather station in China at 36.60 latitude and 109.50 longitude, 959 m (3,146 ft) above sea level.
- The station reports from 1951 to 2025, 75 years of record.
- 1,464 records set at Yan An still stand.
- Records are tracked for tmax, tmin, prcp: an element needs 30 years of data to be eligible.
- Yan An set a daily record high maximum temperature of 33.8 C (92.8 F) on 20 August 2025.
About the Station
- Location: China, 36.60 latitude, 109.50 longitude.
- Elevation: 959 m (3,146 ft).
- Period of record: 1951 to 2025, 75 years.
- Eligible elements: tmax, tmin, prcp.
Daily Record Envelope and 2026
18 days at or beyond a record| Month | Highest record high | Lowest record low | 2026 highest maximum | 2026 lowest minimum |
|---|---|---|---|---|
| Jan | 17.3 C (63.1 F) | -25.4 C (-13.7 F) | 11.5 C (52.7 F) | -21.2 C (-6.2 F) |
| Feb | 23.8 C (74.8 F) | -20.8 C (-5.4 F) | 17.5 C (63.5 F) | -18.9 C (-2.0 F) |
| Mar | 29.4 C (84.9 F) | -18.4 C (-1.1 F) | 25.7 C (78.3 F) | -8.1 C (17.4 F) |
| Apr | 36.7 C (98.1 F) | -8.8 C (16.2 F) | 30.2 C (86.4 F) | -3.2 C (26.2 F) |
| May | 36.5 C (97.7 F) | -3.4 C (25.9 F) | 35.7 C (96.3 F) | 2.3 C (36.1 F) |
| Jun | 39.3 C (102.7 F) | 4.8 C (40.6 F) | 34.5 C (94.1 F) | 7.7 C (45.9 F) |
| Jul | 39.7 C (103.5 F) | 8.8 C (47.8 F) | 35.3 C (95.5 F) | 15.0 C (59.0 F) |
| Aug | 36.9 C (98.4 F) | 5.3 C (41.5 F) | 33.9 C (93.0 F) | 12.7 C (54.9 F) |
| Sep | 37.5 C (99.5 F) | -3.0 C (26.6 F) | n/a | n/a |
| Oct | 29.7 C (85.5 F) | -8.5 C (16.7 F) | n/a | n/a |
| Nov | 25.7 C (78.3 F) | -17.0 C (1.4 F) | n/a | n/a |
| Dec | 19.9 C (67.8 F) | -24.1 C (-11.4 F) | n/a | n/a |
Which Years Hold Standing Records
1,464 standing records| Year set | Standing records |
|---|---|
| 1951 | 35 |
| 1952 | 50 |
| 1953 | 26 |
| 1954 | 28 |
| 1955 | 37 |
| 1956 | 27 |
| 1957 | 35 |
| 1958 | 19 |
| 1959 | 8 |
| 1960 | 27 |
| 1961 | 12 |
| 1962 | 26 |
| 1963 | 9 |
| 1964 | 23 |
| 1965 | 17 |
| 1966 | 24 |
| 1967 | 24 |
| 1968 | 17 |
| 1969 | 14 |
| 1970 | 20 |
| 1971 | 7 |
| 1972 | 23 |
| 1973 | 13 |
| 1974 | 9 |
| 1975 | 21 |
| 1976 | 16 |
| 1977 | 14 |
| 1978 | 21 |
| 1979 | 20 |
| 1980 | 19 |
| 1981 | 20 |
| 1982 | 16 |
| 1983 | 8 |
| 1984 | 22 |
| 1985 | 16 |
| 1986 | 19 |
| 1987 | 29 |
| 1988 | 15 |
| 1989 | 15 |
| 1990 | 15 |
| 1991 | 15 |
| 1992 | 6 |
| 1993 | 15 |
| 1994 | 10 |
| 1995 | 15 |
| 1996 | 18 |
| 1997 | 27 |
| 1998 | 39 |
| 1999 | 17 |
| 2000 | 22 |
| 2001 | 22 |
| 2002 | 33 |
| 2003 | 27 |
| 2004 | 20 |
| 2005 | 16 |
| 2006 | 32 |
| 2007 | 29 |
| 2008 | 21 |
| 2009 | 37 |
| 2010 | 39 |
| 2011 | 25 |
| 2012 | 6 |
| 2013 | 10 |
| 2014 | 20 |
| 2015 | 3 |
| 2016 | 4 |
| 2017 | 1 |
| 2018 | 7 |
| 2019 | 5 |
| 2020 | 15 |
| 2021 | 20 |
| 2022 | 18 |
| 2023 | 26 |
| 2024 | 9 |
| 2025 | 19 |
All-Time Record Progression
3 new records| Date | Kind | Detail |
|---|---|---|
| 1981-08-15 | Record daily precipitation | Record daily precipitation 139.9 mm (5.5 in) |
| 1995-07-29 | Record high minimum temperature | Record high minimum temperature 25.0 C (77.0 F) |
| 2003-07-30 | Record high minimum temperature | Record high minimum temperature 25.4 C (77.7 F) |
Wettest Day of Each Month
Aug: 139.9 mm (5.5 in)| Month | Record daily precipitation (mm) | Date |
|---|---|---|
| Jan | 10.4 mm (0.4 in) | 19 January 1956 |
| Feb | 30.0 mm (1.2 in) | 14 February 2016 |
| Mar | 24.5 mm (1.0 in) | 23 March 1981 |
| Apr | 42.1 mm (1.7 in) | 22 April 1952 |
| May | 54.8 mm (2.2 in) | 24 May 1991 |
| Jun | 78.4 mm (3.1 in) | 9 June 2002 |
| Jul | 102.1 mm (4.0 in) | 18 July 2016 |
| Aug | 139.9 mm (5.5 in) | 15 August 1981 |
| Sep | 93.7 mm (3.7 in) | 3 September 2021 |
| Oct | 78.5 mm (3.1 in) | 4 October 2021 |
| Nov | 34.6 mm (1.4 in) | 10 November 2009 |
| Dec | 39.9 mm (1.6 in) | 15 December 2015 |
Period of Record Coverage
1951 to 2025| Year | Days with data | Share of year | Complete |
|---|---|---|---|
| 1951 | 363 | 99% | Yes |
| 1952 | 366 | 100% | Yes |
| 1953 | 365 | 100% | Yes |
| 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 | 365 | 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 | 366 | 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 | 184 | 50% | No |
| 2014 | 355 | 97% | Yes |
| 2015 | 98 | 27% | No |
| 2016 | 1 | 0% | No |
| 2017 | 2 | 1% | No |
| 2018 | 31 | 8% | No |
| 2019 | 72 | 20% | No |
| 2020 | 361 | 99% | Yes |
| 2021 | 359 | 98% | Yes |
| 2022 | 361 | 99% | Yes |
| 2023 | 340 | 93% | Yes |
| 2024 | 343 | 94% | Yes |
| 2025 | 227 | 62% | No |
Latest Records
20| Date | Station | Record | Value | Beat old record by | Old record stood | Significance |
|---|---|---|---|---|---|---|
| 20 August 2025 | Yan An, CN | daily high max | 33.8 C (92.8 F) | 0.1 C (0.2 F) | 18 years | 12 of 100 (Routine) |
| 9 June 2025 | Yan An, CN | daily high max | 34.5 C (94.1 F) | 0.1 C (0.2 F) | 74 years | 29 of 100 (Routine) |
| 26 May 2025 | Yan An, CN | daily low min | 5.1 C (41.2 F) | 0.3 C (0.5 F) | 44 years | 20 of 100 (Routine) |
| 24 May 2025 | Yan An, CN | daily low min | 4.4 C (39.9 F) | 0.4 C (0.7 F) | 8 years | 10 of 100 (Routine) |
| 21 May 2025 | Yan An, CN | daily high max (Tie) | 35.5 C (95.9 F) | tie | 24 years | 3 of 100 (Routine) |
| 20 May 2025 | Yan An, CN | daily high max | 35.7 C (96.3 F) | 0.7 C (1.3 F) | 24 years | 15 of 100 (Routine) |
| 19 May 2025 | Yan An, CN | daily high max | 35.7 C (96.3 F) | 2.6 C (4.7 F) | 68 years | 32 of 100 (Routine) |
| 17 May 2025 | Yan An, CN | daily high max | 33.2 C (91.8 F) | 0.2 C (0.4 F) | 0 years | 7 of 100 (Routine) |
| 16 May 2025 | Yan An, CN | daily high max | 33.2 C (91.8 F) | 0.8 C (1.4 F) | 39 years | 19 of 100 (Routine) |
| 14 May 2025 | Yan An, CN | daily high max | 32.1 C (89.8 F) | 0.5 C (0.9 F) | 18 years | 13 of 100 (Routine) |
| 30 March 2025 | Yan An, CN | daily low min | -5.5 C (22.1 F) | 0.7 C (1.3 F) | 40 years | 20 of 100 (Routine) |
| 28 March 2025 | Yan An, CN | daily low max | 5.3 C (41.5 F) | 2.0 C (3.6 F) | 34 years | 20 of 100 (Routine) |
| 25 March 2025 | Yan An, CN | daily high min | 6.5 C (43.7 F) | 0.1 C (0.2 F) | 67 years | 27 of 100 (Routine) |
| 25 March 2025 | Yan An, CN | daily high max | 25.7 C (78.3 F) | 0.2 C (0.4 F) | 56 years | 23 of 100 (Routine) |
| 24 March 2025 | Yan An, CN | daily high max | 24.7 C (76.5 F) | 1.2 C (2.2 F) | 66 years | 28 of 100 (Routine) |
| 2 March 2025 | Yan An, CN | daily rain | 17.0 mm (0.7 in) | 9.0 mm (0.35 in) | 64 years | 20 of 100 (Routine) |
| 8 February 2025 | Yan An, CN | daily low min | -18.9 C (-2.0 F) | 0.9 C (1.6 F) | 57 years | 25 of 100 (Routine) |
| 7 February 2025 | Yan An, CN | daily low min | -18.5 C (-1.3 F) | 0.3 C (0.5 F) | 45 years | 20 of 100 (Routine) |
| 28 January 2025 | Yan An, CN | daily low min | -20.8 C (-5.4 F) | 1.5 C (2.7 F) | 59 years | 27 of 100 (Routine) |
| 27 January 2025 | Yan An, CN | daily low min | -21.2 C (-6.2 F) | 2.2 C (4.0 F) | 25 years | 19 of 100 (Routine) |
Climate Trend
67 complete years, 1951 to 2024| Year | Annual mean temperature | Difference from the station mean |
|---|---|---|
| 1951 | 9.8 C | -0.96 C |
| 1952 | 10.0 C | -0.84 C |
| 1953 | 10.6 C | -0.22 C |
| 1954 | 9.8 C | -1.04 C |
| 1955 | 10.8 C | -0.04 C |
| 1956 | 9.8 C | -0.98 C |
| 1957 | 10.0 C | -0.79 C |
| 1958 | 10.2 C | -0.56 C |
| 1959 | 10.5 C | -0.31 C |
| 1960 | 10.5 C | -0.28 C |
| 1961 | 10.7 C | -0.06 C |
| 1962 | 10.0 C | -0.78 C |
| 1963 | 10.2 C | -0.62 C |
| 1964 | 10.0 C | -0.75 C |
| 1965 | 10.5 C | -0.26 C |
| 1966 | 10.8 C | +0.01 C |
| 1967 | 9.4 C | -1.35 C |
| 1968 | 10.1 C | -0.71 C |
| 1969 | 10.2 C | -0.58 C |
| 1970 | 10.2 C | -0.63 C |
| 1971 | 10.5 C | -0.29 C |
| 1972 | 10.4 C | -0.36 C |
| 1973 | 11.1 C | +0.28 C |
| 1974 | 10.5 C | -0.29 C |
| 1975 | 10.5 C | -0.33 C |
| 1976 | 9.9 C | -0.94 C |
| 1977 | 10.7 C | -0.09 C |
| 1978 | 11.0 C | +0.19 C |
| 1979 | 11.0 C | +0.21 C |
| 1980 | 10.6 C | -0.24 C |
| 1981 | 10.4 C | -0.42 C |
| 1982 | 10.7 C | -0.10 C |
| 1983 | 10.2 C | -0.60 C |
| 1984 | 9.6 C | -1.17 C |
| 1985 | 10.2 C | -0.63 C |
| 1986 | 9.9 C | -0.93 C |
| 1987 | 11.3 C | +0.48 C |
| 1988 | 10.3 C | -0.53 C |
| 1989 | 10.5 C | -0.29 C |
| 1990 | 11.1 C | +0.27 C |
| 1991 | 11.0 C | +0.23 C |
| 1992 | 10.5 C | -0.29 C |
| 1993 | 10.3 C | -0.49 C |
| 1994 | 11.2 C | +0.39 C |
| 1995 | 11.1 C | +0.34 C |
| 1996 | 10.6 C | -0.16 C |
| 1997 | 11.8 C | +1.03 C |
| 1998 | 12.4 C | +1.58 C |
| 1999 | 12.3 C | +1.46 C |
| 2000 | 11.8 C | +0.96 C |
| 2001 | 11.9 C | +1.14 C |
| 2002 | 12.1 C | +1.32 C |
| 2003 | 11.5 C | +0.68 C |
| 2004 | 11.9 C | +1.06 C |
| 2005 | 11.6 C | +0.76 C |
| 2006 | 12.3 C | +1.52 C |
| 2007 | 12.0 C | +1.19 C |
| 2008 | 11.3 C | +0.49 C |
| 2009 | 12.1 C | +1.33 C |
| 2010 | 12.0 C | +1.25 C |
| 2011 | 11.2 C | +0.39 C |
| 2012 | 11.1 C | +0.35 C |
| 2020 | 10.4 C | -0.40 C |
| 2021 | 11.1 C | +0.30 C |
| 2022 | 10.8 C | +0.05 C |
| 2023 | 10.9 C | +0.14 C |
| 2024 | 11.6 C | +0.84 C |
The annual mean temperature here has risen by 0.2 C (0.2 to 0.3) per decade over 1951 to 2024. In Fahrenheit: 0.4 F (0.3 to 0.6) per decade. The slope is a straight line fitted to 67 complete years; the brackets give its 95 percent interval.
| Measure | Per decade (C) | Per decade (F) | Period | Complete years | Reading |
|---|---|---|---|---|---|
| Annual mean temperature | 0.2 C (0.2 to 0.3) per decade | 0.4 F (0.3 to 0.6) per decade | 1951 to 2024 | 67 | Rise |
| Mean daily maximum | 0.2 C (0.1 to 0.3) per decade | 0.4 F (0.2 to 0.5) per decade | 1951 to 2024 | 67 | Rise |
| Mean daily minimum | 0.3 C (0.2 to 0.4) per decade | 0.5 F (0.3 to 0.7) per decade | 1951 to 2024 | 67 | 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
1951 to 2025| Measure | Record | Year of the record | Median year | Years with a value |
|---|---|---|---|---|
| Hottest day (TXx) | 39.7 C (103.5 F) | 1952 | 35.8 C (96.4 F) | 75 |
| Coldest night (TNn) | -25.4 C (-13.7 F) | 1956 | -19.2 C (-2.6 F) | 75 |
| Wettest day (Rx1day) | 139.9 mm (5.5 in) | 1981 | 54.8 mm (2.2 in) | 75 |
| Wettest five days (Rx5day) | 242.7 mm (9.6 in) | 2013 | 88.4 mm (3.5 in) | 75 |
| Longest dry spell (CDD) | 80 days | 1983 | 45 days | 75 |
Hottest day (TXx)
| Year | Hottest day (TXx) |
|---|---|
| 1951 | 36.7 C (98.1 F) |
| 1952 | 39.7 C (103.5 F) |
| 1953 | 36.4 C (97.5 F) |
| 1954 | 34.5 C (94.1 F) |
| 1955 | 36.8 C (98.2 F) |
| 1956 | 35.2 C (95.4 F) |
| 1957 | 36.5 C (97.7 F) |
| 1958 | 35.8 C (96.4 F) |
| 1959 | 34.5 C (94.1 F) |
| 1960 | 36.3 C (97.3 F) |
| 1961 | 37.0 C (98.6 F) |
| 1962 | 36.7 C (98.1 F) |
| 1963 | 34.9 C (94.8 F) |
| 1964 | 32.5 C (90.5 F) |
| 1965 | 35.6 C (96.1 F) |
| 1966 | 38.0 C (100.4 F) |
| 1967 | 35.8 C (96.4 F) |
| 1968 | 35.8 C (96.4 F) |
| 1969 | 35.7 C (96.3 F) |
| 1970 | 35.3 C (95.5 F) |
| 1971 | 35.0 C (95.0 F) |
| 1972 | 36.4 C (97.5 F) |
| 1973 | 36.9 C (98.4 F) |
| 1974 | 37.4 C (99.3 F) |
| 1975 | 34.4 C (93.9 F) |
| 1976 | 36.0 C (96.8 F) |
| 1977 | 35.1 C (95.2 F) |
| 1978 | 37.3 C (99.1 F) |
| 1979 | 35.7 C (96.3 F) |
| 1980 | 36.6 C (97.9 F) |
| 1981 | 36.2 C (97.2 F) |
| 1982 | 35.2 C (95.4 F) |
| 1983 | 34.2 C (93.6 F) |
| 1984 | 33.9 C (93.0 F) |
| 1985 | 34.5 C (94.1 F) |
| 1986 | 34.4 C (93.9 F) |
| 1987 | 36.2 C (97.2 F) |
| 1988 | 34.4 C (93.9 F) |
| 1989 | 33.5 C (92.3 F) |
| 1990 | 35.1 C (95.2 F) |
| 1991 | 35.9 C (96.6 F) |
| 1992 | 35.8 C (96.4 F) |
| 1993 | 34.2 C (93.6 F) |
| 1994 | 36.0 C (96.8 F) |
| 1995 | 36.7 C (98.1 F) |
| 1996 | 35.4 C (95.7 F) |
| 1997 | 37.5 C (99.5 F) |
| 1998 | 37.5 C (99.5 F) |
| 1999 | 36.8 C (98.2 F) |
| 2000 | 38.3 C (100.9 F) |
| 2001 | 38.5 C (101.3 F) |
| 2002 | 37.5 C (99.5 F) |
| 2003 | 35.7 C (96.3 F) |
| 2004 | 35.8 C (96.4 F) |
| 2005 | 39.3 C (102.7 F) |
| 2006 | 38.4 C (101.1 F) |
| 2007 | 35.6 C (96.1 F) |
| 2008 | 34.5 C (94.1 F) |
| 2009 | 37.5 C (99.5 F) |
| 2010 | 36.5 C (97.7 F) |
| 2011 | 36.6 C (97.9 F) |
| 2012 | 35.7 C (96.3 F) |
| 2013 | 33.2 C (91.8 F) |
| 2014 | 34.2 C (93.6 F) |
| 2015 | 35.0 C (95.0 F) |
| 2016 | 3.5 C (38.3 F) |
| 2017 | 10.5 C (50.9 F) |
| 2018 | 30.7 C (87.3 F) |
| 2019 | 27.7 C (81.9 F) |
| 2020 | 35.1 C (95.2 F) |
| 2021 | 37.0 C (98.6 F) |
| 2022 | 35.2 C (95.4 F) |
| 2023 | 35.2 C (95.4 F) |
| 2024 | 36.7 C (98.1 F) |
| 2025 | 35.7 C (96.3 F) |
Coldest night (TNn)
| Year | Coldest night (TNn) |
|---|---|
| 1951 | -23.6 C (-10.5 F) |
| 1952 | -20.8 C (-5.4 F) |
| 1953 | -20.8 C (-5.4 F) |
| 1954 | -24.1 C (-11.4 F) |
| 1955 | -24.8 C (-12.6 F) |
| 1956 | -25.4 C (-13.7 F) |
| 1957 | -19.1 C (-2.4 F) |
| 1958 | -23.5 C (-10.3 F) |
| 1959 | -19.9 C (-3.8 F) |
| 1960 | -20.2 C (-4.4 F) |
| 1961 | -20.6 C (-5.1 F) |
| 1962 | -19.7 C (-3.5 F) |
| 1963 | -19.0 C (-2.2 F) |
| 1964 | -18.6 C (-1.5 F) |
| 1965 | -18.3 C (-0.9 F) |
| 1966 | -20.5 C (-4.9 F) |
| 1967 | -21.7 C (-7.1 F) |
| 1968 | -19.5 C (-3.1 F) |
| 1969 | -19.9 C (-3.8 F) |
| 1970 | -21.1 C (-6.0 F) |
| 1971 | -21.3 C (-6.3 F) |
| 1972 | -17.9 C (-0.2 F) |
| 1973 | -19.2 C (-2.6 F) |
| 1974 | -15.7 C (3.7 F) |
| 1975 | -20.8 C (-5.4 F) |
| 1976 | -19.2 C (-2.6 F) |
| 1977 | -18.6 C (-1.5 F) |
| 1978 | -18.3 C (-0.9 F) |
| 1979 | -16.0 C (3.2 F) |
| 1980 | -19.8 C (-3.6 F) |
| 1981 | -16.2 C (2.8 F) |
| 1982 | -17.0 C (1.4 F) |
| 1983 | -19.5 C (-3.1 F) |
| 1984 | -22.9 C (-9.2 F) |
| 1985 | -17.0 C (1.4 F) |
| 1986 | -18.1 C (-0.6 F) |
| 1987 | -17.0 C (1.4 F) |
| 1988 | -18.2 C (-0.8 F) |
| 1989 | -20.9 C (-5.6 F) |
| 1990 | -18.2 C (-0.8 F) |
| 1991 | -23.0 C (-9.4 F) |
| 1992 | -17.4 C (0.7 F) |
| 1993 | -20.5 C (-4.9 F) |
| 1994 | -16.9 C (1.6 F) |
| 1995 | -14.7 C (5.5 F) |
| 1996 | -17.4 C (0.7 F) |
| 1997 | -16.1 C (3.0 F) |
| 1998 | -21.4 C (-6.5 F) |
| 1999 | -18.1 C (-0.6 F) |
| 2000 | -19.0 C (-2.2 F) |
| 2001 | -14.5 C (5.9 F) |
| 2002 | -22.8 C (-9.0 F) |
| 2003 | -20.3 C (-4.5 F) |
| 2004 | -17.5 C (0.5 F) |
| 2005 | -18.3 C (-0.9 F) |
| 2006 | -18.8 C (-1.8 F) |
| 2007 | -14.7 C (5.5 F) |
| 2008 | -20.0 C (-4.0 F) |
| 2009 | -20.6 C (-5.1 F) |
| 2010 | -17.0 C (1.4 F) |
| 2011 | -18.9 C (-2.0 F) |
| 2012 | -18.4 C (-1.1 F) |
| 2013 | -20.4 C (-4.7 F) |
| 2014 | -18.7 C (-1.7 F) |
| 2015 | -16.9 C (1.6 F) |
| 2016 | -21.4 C (-6.5 F) |
| 2017 | -18.3 C (-0.9 F) |
| 2018 | -19.9 C (-3.8 F) |
| 2019 | -17.4 C (0.7 F) |
| 2020 | -21.6 C (-6.9 F) |
| 2021 | -22.9 C (-9.2 F) |
| 2022 | -17.7 C (0.1 F) |
| 2023 | -20.0 C (-4.0 F) |
| 2024 | -21.9 C (-7.4 F) |
| 2025 | -21.2 C (-6.2 F) |
Wettest day (Rx1day)
| Year | Wettest day (Rx1day) |
|---|---|
| 1951 | 49.5 mm (1.9 in) |
| 1952 | 42.1 mm (1.7 in) |
| 1953 | 49.4 mm (1.9 in) |
| 1954 | 31.5 mm (1.2 in) |
| 1955 | 44.6 mm (1.8 in) |
| 1956 | 36.0 mm (1.4 in) |
| 1957 | 52.2 mm (2.1 in) |
| 1958 | 98.1 mm (3.9 in) |
| 1959 | 49.5 mm (1.9 in) |
| 1960 | 55.1 mm (2.2 in) |
| 1961 | 74.1 mm (2.9 in) |
| 1962 | 55.4 mm (2.2 in) |
| 1963 | 84.1 mm (3.3 in) |
| 1964 | 47.1 mm (1.9 in) |
| 1965 | 46.3 mm (1.8 in) |
| 1966 | 60.5 mm (2.4 in) |
| 1967 | 44.5 mm (1.8 in) |
| 1968 | 59.5 mm (2.3 in) |
| 1969 | 51.4 mm (2.0 in) |
| 1970 | 68.4 mm (2.7 in) |
| 1971 | 59.4 mm (2.3 in) |
| 1972 | 43.8 mm (1.7 in) |
| 1973 | 88.4 mm (3.5 in) |
| 1974 | 21.8 mm (0.9 in) |
| 1975 | 59.3 mm (2.3 in) |
| 1976 | 46.3 mm (1.8 in) |
| 1977 | 39.8 mm (1.6 in) |
| 1978 | 49.0 mm (1.9 in) |
| 1979 | 79.9 mm (3.1 in) |
| 1980 | 39.4 mm (1.6 in) |
| 1981 | 139.9 mm (5.5 in) |
| 1982 | 71.8 mm (2.8 in) |
| 1983 | 49.7 mm (2.0 in) |
| 1984 | 84.0 mm (3.3 in) |
| 1985 | 44.1 mm (1.7 in) |
| 1986 | 40.5 mm (1.6 in) |
| 1987 | 81.3 mm (3.2 in) |
| 1988 | 73.8 mm (2.9 in) |
| 1989 | 60.0 mm (2.4 in) |
| 1990 | 68.1 mm (2.7 in) |
| 1991 | 54.8 mm (2.2 in) |
| 1992 | 33.7 mm (1.3 in) |
| 1993 | 95.5 mm (3.8 in) |
| 1994 | 72.2 mm (2.8 in) |
| 1995 | 50.7 mm (2.0 in) |
| 1996 | 37.5 mm (1.5 in) |
| 1997 | 48.6 mm (1.9 in) |
| 1998 | 60.9 mm (2.4 in) |
| 1999 | 39.5 mm (1.6 in) |
| 2000 | 27.2 mm (1.1 in) |
| 2001 | 51.2 mm (2.0 in) |
| 2002 | 78.4 mm (3.1 in) |
| 2003 | 44.1 mm (1.7 in) |
| 2004 | 59.5 mm (2.3 in) |
| 2005 | 57.2 mm (2.3 in) |
| 2006 | 55.8 mm (2.2 in) |
| 2007 | 50.0 mm (2.0 in) |
| 2008 | 28.3 mm (1.1 in) |
| 2009 | 64.3 mm (2.5 in) |
| 2010 | 71.0 mm (2.8 in) |
| 2011 | 52.7 mm (2.1 in) |
| 2012 | 41.0 mm (1.6 in) |
| 2013 | 92.5 mm (3.6 in) |
| 2014 | 78.5 mm (3.1 in) |
| 2015 | 39.9 mm (1.6 in) |
| 2016 | 102.1 mm (4.0 in) |
| 2017 | 63.0 mm (2.5 in) |
| 2018 | 40.9 mm (1.6 in) |
| 2019 | 88.6 mm (3.5 in) |
| 2020 | 62.2 mm (2.4 in) |
| 2021 | 93.7 mm (3.7 in) |
| 2022 | 82.8 mm (3.3 in) |
| 2023 | 45.5 mm (1.8 in) |
| 2024 | 60.2 mm (2.4 in) |
| 2025 | 51.3 mm (2.0 in) |
Wettest five days (Rx5day)
| Year | Wettest five days (Rx5day) |
|---|---|
| 1951 | 66.4 mm (2.6 in) |
| 1952 | 69.6 mm (2.7 in) |
| 1953 | 65.8 mm (2.6 in) |
| 1954 | 51.9 mm (2.0 in) |
| 1955 | 87.0 mm (3.4 in) |
| 1956 | 67.3 mm (2.6 in) |
| 1957 | 63.1 mm (2.5 in) |
| 1958 | 149.1 mm (5.9 in) |
| 1959 | 73.4 mm (2.9 in) |
| 1960 | 111.1 mm (4.4 in) |
| 1961 | 117.6 mm (4.6 in) |
| 1962 | 147.8 mm (5.8 in) |
| 1963 | 123.9 mm (4.9 in) |
| 1964 | 114.3 mm (4.5 in) |
| 1965 | 66.7 mm (2.6 in) |
| 1966 | 77.2 mm (3.0 in) |
| 1967 | 79.4 mm (3.1 in) |
| 1968 | 101.1 mm (4.0 in) |
| 1969 | 103.5 mm (4.1 in) |
| 1970 | 83.9 mm (3.3 in) |
| 1971 | 97.0 mm (3.8 in) |
| 1972 | 55.7 mm (2.2 in) |
| 1973 | 101.2 mm (4.0 in) |
| 1974 | 41.7 mm (1.6 in) |
| 1975 | 91.7 mm (3.6 in) |
| 1976 | 89.9 mm (3.5 in) |
| 1977 | 85.9 mm (3.4 in) |
| 1978 | 120.4 mm (4.7 in) |
| 1979 | 99.5 mm (3.9 in) |
| 1980 | 71.0 mm (2.8 in) |
| 1981 | 217.0 mm (8.5 in) |
| 1982 | 129.1 mm (5.1 in) |
| 1983 | 97.1 mm (3.8 in) |
| 1984 | 88.8 mm (3.5 in) |
| 1985 | 88.0 mm (3.5 in) |
| 1986 | 59.0 mm (2.3 in) |
| 1987 | 88.4 mm (3.5 in) |
| 1988 | 103.1 mm (4.1 in) |
| 1989 | 97.5 mm (3.8 in) |
| 1990 | 96.3 mm (3.8 in) |
| 1991 | 62.8 mm (2.5 in) |
| 1992 | 58.2 mm (2.3 in) |
| 1993 | 127.0 mm (5.0 in) |
| 1994 | 104.2 mm (4.1 in) |
| 1995 | 72.6 mm (2.9 in) |
| 1996 | 54.6 mm (2.1 in) |
| 1997 | 54.1 mm (2.1 in) |
| 1998 | 81.3 mm (3.2 in) |
| 1999 | 50.0 mm (2.0 in) |
| 2000 | 54.5 mm (2.1 in) |
| 2001 | 96.4 mm (3.8 in) |
| 2002 | 96.7 mm (3.8 in) |
| 2003 | 107.3 mm (4.2 in) |
| 2004 | 68.4 mm (2.7 in) |
| 2005 | 79.9 mm (3.1 in) |
| 2006 | 63.8 mm (2.5 in) |
| 2007 | 113.6 mm (4.5 in) |
| 2008 | 68.6 mm (2.7 in) |
| 2009 | 117.5 mm (4.6 in) |
| 2010 | 138.3 mm (5.4 in) |
| 2011 | 81.8 mm (3.2 in) |
| 2012 | 63.9 mm (2.5 in) |
| 2013 | 242.7 mm (9.6 in) |
| 2014 | 70.9 mm (2.8 in) |
| 2015 | 60.0 mm (2.4 in) |
| 2016 | 69.7 mm (2.7 in) |
| 2017 | 111.0 mm (4.4 in) |
| 2018 | 91.2 mm (3.6 in) |
| 2019 | 97.5 mm (3.8 in) |
| 2020 | 127.3 mm (5.0 in) |
| 2021 | 183.9 mm (7.2 in) |
| 2022 | 117.9 mm (4.6 in) |
| 2023 | 65.0 mm (2.6 in) |
| 2024 | 155.0 mm (6.1 in) |
| 2025 | 51.3 mm (2.0 in) |
Longest dry spell (CDD)
| Year | Longest dry spell (CDD) |
|---|---|
| 1951 | 26 days |
| 1952 | 36 days |
| 1953 | 79 days |
| 1954 | 28 days |
| 1955 | 45 days |
| 1956 | 54 days |
| 1957 | 47 days |
| 1958 | 60 days |
| 1959 | 56 days |
| 1960 | 66 days |
| 1961 | 35 days |
| 1962 | 40 days |
| 1963 | 66 days |
| 1964 | 30 days |
| 1965 | 54 days |
| 1966 | 49 days |
| 1967 | 35 days |
| 1968 | 35 days |
| 1969 | 58 days |
| 1970 | 68 days |
| 1971 | 46 days |
| 1972 | 39 days |
| 1973 | 58 days |
| 1974 | 27 days |
| 1975 | 27 days |
| 1976 | 41 days |
| 1977 | 43 days |
| 1978 | 46 days |
| 1979 | 52 days |
| 1980 | 65 days |
| 1981 | 58 days |
| 1982 | 52 days |
| 1983 | 80 days |
| 1984 | 72 days |
| 1985 | 73 days |
| 1986 | 46 days |
| 1987 | 47 days |
| 1988 | 66 days |
| 1989 | 51 days |
| 1990 | 21 days |
| 1991 | 64 days |
| 1992 | 61 days |
| 1993 | 42 days |
| 1994 | 33 days |
| 1995 | 66 days |
| 1996 | 45 days |
| 1997 | 37 days |
| 1998 | 79 days |
| 1999 | 76 days |
| 2000 | 43 days |
| 2001 | 54 days |
| 2002 | 35 days |
| 2003 | 43 days |
| 2004 | 50 days |
| 2005 | 66 days |
| 2006 | 37 days |
| 2007 | 59 days |
| 2008 | 70 days |
| 2009 | 38 days |
| 2010 | 59 days |
| 2011 | 37 days |
| 2012 | 54 days |
| 2013 | 3 days |
| 2014 | 5 days |
| 2015 | 6 days |
| 2016 | 4 days |
| 2017 | 3 days |
| 2018 | 3 days |
| 2019 | 29 days |
| 2020 | 30 days |
| 2021 | 23 days |
| 2022 | 44 days |
| 2023 | 39 days |
| 2024 | 20 days |
| 2025 | 36 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
67 years with a frostAcross 67 years with a frost, the median last spring frost at Yan An falls on 13 April and the median first autumn frost on 17 October, which leaves a median of 190 days between them.
In 1988 to 2024 the median growing season was 197 days. That is 14 days more than in 1951 to 1980.
Fitted over all years, the growing season changes by +2.4 days per decade at this station.
| Measure | Median, all years | Earliest period (1951 to 1980) | Recent period (1988 to 2024) | Recent against earliest | Fitted trend |
|---|---|---|---|---|---|
| Last spring frost | 13 April | 16 April | 12 April | 4 days earlier | -0.9 days per decade |
| First autumn frost | 17 October | 15 October | 22 October | 7 days later | +1.5 days per decade |
| Growing days | 190 days | 183 days | 197 days | 14 days more | +2.4 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
67 years, 1951 to 2024A day with at least 54.0 mm (2.1 in) of rain is expected about once in 2 years. A day with at least 122.3 mm (4.8 in) of rain is expected about once in 100 years.
| Expected about once in | A day with at least | Note |
|---|---|---|
| 2 years | 54.0 mm (2.1 in) | |
| 5 years | 71.4 mm (2.8 in) | |
| 10 years | 83.3 mm (3.3 in) | |
| 25 years | 98.7 mm (3.9 in) | |
| 50 years | 110.4 mm (4.3 in) | |
| 100 years | 122.3 mm (4.8 in) | Longer than the 67 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, 67 years of values from 1951 to 2024.
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: 139.9 mm (5.5 in) in 1981; 98.1 mm (3.9 in) in 1958; 95.5 mm (3.8 in) in 1993.
Station Changes
2 suspected2 changes were suspected in the annual mean temperature of Yan An, at 2003 and 2020. Each is measured against neighbouring stations.
- Relative to 4 neighbouring stations, the station's annual mean temperature from 2003 ran 0.5 C (0.9 F) higher than in the years before (likely change).
- Relative to 4 neighbouring stations, the station's annual mean temperature from 2020 ran 1.9 C (3.4 F) lower than in the years before (likely change).
| Year | Shift (C) | Shift (F) | Strength | Neighbours |
|---|---|---|---|---|
| 2003 | +0.5 | +0.9 | likely | 4 |
| 2020 | -1.9 | -3.4 | likely | 4 |
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, Yan An had a mean temperature of 11.5 C (52.6 F) and 544.4 mm (21.4 in) of rain a year. The 3 stations whose 1961 to 1990 climate was closest to that are Jiexiu (China, 220 km away), Alma (United States, 10,991 km away) and Beaver City (United States, 10,972 km away).
| Twin station | Country | Distance away | Mean temperature, 1961-1990 | Rain a year, 1961-1990 | Climate difference |
|---|---|---|---|---|---|
| Jiexiu | China | 220 km (137 mi) | 10.8 C (51.5 F) | 495.8 mm (19.5 in) | 0.97 |
| Alma | United States | 10,991 km (6,829 mi) | 11.7 C (53.0 F) | 569.7 mm (22.4 in) | 1.22 |
| Beaver City | United States | 10,972 km (6,818 mi) | 11.6 C (52.9 F) | 608.5 mm (24.0 in) | 1.29 |
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 2026-10-15 (15 October 2026). Records are computed by this site and are not official.
Data as of . Last revised (2025-12-31).