Del Rio Intl AP Weather Records (USW00022010)
Record envelope, standing records and threshold days for Del Rio Intl AP (USW00022010), Texas, United States, with 76 years of record.
Key Facts for Del Rio Intl AP
- Del Rio Intl AP (USW00022010) is a weather station in Texas, United States at 29.38 latitude and -100.93 longitude, 306 m (1,003 ft) above sea level.
- The station reports from 1951 to 2026, 76 years of record.
- 1,464 records set at Del Rio Intl AP still stand.
- Records are tracked for tmax, tmin, prcp, snow, snwd: an element needs 30 years of data to be eligible.
- Del Rio Intl AP set a daily record high minimum temperature of 26.1 C (79.0 F) on 26 September 2026 (provisional).
Provisional Records
Records set in the last 60 days are provisional until they clear the revision window.
About the Station
- Location: Texas, United States, 29.38 latitude, -100.93 longitude.
- Elevation: 306 m (1,003 ft).
- Period of record: 1951 to 2026, 76 years.
- Eligible elements: tmax, tmin, prcp, snow, snwd.
Daily Record Envelope and 2026
11 days at or beyond a record| Month | Highest record high | Lowest record low | 2026 highest maximum | 2026 lowest minimum |
|---|---|---|---|---|
| Jan | 32.2 C (90.0 F) | -9.4 C (15.1 F) | 30.6 C (87.1 F) | -5.6 C (21.9 F) |
| Feb | 37.2 C (99.0 F) | -11.6 C (11.1 F) | 33.9 C (93.0 F) | -0.6 C (30.9 F) |
| Mar | 38.3 C (100.9 F) | -6.1 C (21.0 F) | 36.7 C (98.1 F) | 2.8 C (37.0 F) |
| Apr | 41.7 C (107.1 F) | 0.6 C (33.1 F) | 33.9 C (93.0 F) | 9.4 C (48.9 F) |
| May | 44.4 C (111.9 F) | 7.2 C (45.0 F) | 36.7 C (98.1 F) | 13.3 C (55.9 F) |
| Jun | 46.1 C (115.0 F) | 12.8 C (55.0 F) | 42.2 C (108.0 F) | 20.6 C (69.1 F) |
| Jul | 44.4 C (111.9 F) | 17.8 C (64.0 F) | 39.4 C (102.9 F) | 20.0 C (68.0 F) |
| Aug | 45.0 C (113.0 F) | 17.8 C (64.0 F) | 40.0 C (104.0 F) | 22.2 C (72.0 F) |
| Sep | 43.3 C (109.9 F) | 8.9 C (48.0 F) | 40.0 C (104.0 F) | 22.2 C (72.0 F) |
| Oct | 41.1 C (106.0 F) | -2.2 C (28.0 F) | 33.3 C (91.9 F) | 17.8 C (64.0 F) |
| Nov | 35.6 C (96.1 F) | -5.6 C (21.9 F) | n/a | n/a |
| Dec | 32.8 C (91.0 F) | -12.2 C (10.0 F) | n/a | n/a |
Which Years Hold Standing Records
1,464 standing records| Year set | Standing records |
|---|---|
| 1951 | 19 |
| 1952 | 15 |
| 1953 | 15 |
| 1954 | 13 |
| 1955 | 19 |
| 1956 | 9 |
| 1957 | 17 |
| 1963 | 5 |
| 1964 | 14 |
| 1965 | 16 |
| 1966 | 24 |
| 1967 | 10 |
| 1968 | 16 |
| 1969 | 19 |
| 1970 | 22 |
| 1971 | 31 |
| 1972 | 18 |
| 1973 | 23 |
| 1974 | 21 |
| 1975 | 20 |
| 1976 | 48 |
| 1977 | 11 |
| 1978 | 4 |
| 1979 | 20 |
| 1980 | 19 |
| 1981 | 10 |
| 1982 | 19 |
| 1983 | 21 |
| 1984 | 16 |
| 1985 | 32 |
| 1986 | 17 |
| 1987 | 19 |
| 1988 | 11 |
| 1989 | 30 |
| 1990 | 17 |
| 1991 | 13 |
| 1992 | 14 |
| 1993 | 13 |
| 1994 | 6 |
| 1995 | 15 |
| 1996 | 21 |
| 1997 | 18 |
| 1998 | 19 |
| 1999 | 11 |
| 2000 | 36 |
| 2001 | 11 |
| 2002 | 19 |
| 2003 | 5 |
| 2004 | 9 |
| 2005 | 20 |
| 2006 | 16 |
| 2007 | 24 |
| 2008 | 11 |
| 2009 | 15 |
| 2010 | 9 |
| 2011 | 26 |
| 2012 | 18 |
| 2013 | 22 |
| 2014 | 15 |
| 2015 | 10 |
| 2016 | 8 |
| 2017 | 15 |
| 2018 | 21 |
| 2019 | 35 |
| 2020 | 52 |
| 2021 | 44 |
| 2022 | 28 |
| 2023 | 90 |
| 2024 | 82 |
| 2025 | 35 |
| 2026 | 18 |
All-Time Record Progression
10 new records| Date | Kind | Detail |
|---|---|---|
| 1988-06-09 | Record high maximum temperature | Record high maximum temperature 44.4 C (111.9 F) |
| 1989-12-22 | Record low maximum temperature | Record low maximum temperature -5.0 C (23.0 F) |
| 1989-12-23 | Record low minimum temperature | Record low minimum temperature -12.2 C (10.0 F) |
| 1998-06-29 | Record high minimum temperature | Record high minimum temperature 28.3 C (82.9 F) |
| 1998-07-13 | Record high minimum temperature | Record high minimum temperature 30.6 C (87.1 F) |
| 1998-08-23 | Record daily precipitation | Record daily precipitation 432.6 mm (17.0 in) |
| 2021-02-18 | Record daily snowfall | Record daily snowfall 28.4 cm (11.2 in) |
| 2021-02-19 | Record snow depth | Record snow depth 25.0 cm (9.8 in) |
| 2023-06-20 | Record high maximum temperature | Record high maximum temperature 45.0 C (113.0 F) |
| 2023-06-21 | Record high maximum temperature | Record high maximum temperature 46.1 C (115.0 F) |
Wettest Day of Each Month
Aug: 432.6 mm (17.0 in)| Month | Record daily precipitation (mm) | Date |
|---|---|---|
| Jan | 46.0 mm (1.8 in) | 21 January 1994 |
| Feb | 65.3 mm (2.6 in) | 5 February 1987 |
| Mar | 74.2 mm (2.9 in) | 10 March 2026 |
| Apr | 128.8 mm (5.1 in) | 2 April 2017 |
| May | 180.8 mm (7.1 in) | 24 May 2010 |
| Jun | 109.5 mm (4.3 in) | 20 June 2014 |
| Jul | 122.9 mm (4.8 in) | 17 July 1975 |
| Aug | 432.6 mm (17.0 in) | 23 August 1998 |
| Sep | 132.3 mm (5.2 in) | 26 September 1970 |
| Oct | 193.0 mm (7.6 in) | 4 October 1969 |
| Nov | 52.6 mm (2.1 in) | 5 November 1978 |
| Dec | 43.2 mm (1.7 in) | 27 December 1994 |
Period of Record Coverage
1951 to 2026| Year | Days with data | Share of year | Complete |
|---|---|---|---|
| 1951 | 245 | 67% | No |
| 1952 | 366 | 100% | Yes |
| 1953 | 365 | 100% | Yes |
| 1954 | 365 | 100% | Yes |
| 1955 | 365 | 100% | Yes |
| 1956 | 366 | 100% | Yes |
| 1957 | 243 | 67% | No |
| 1963 | 306 | 84% | No |
| 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 | 364 | 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 | 365 | 100% | Yes |
| 2014 | 365 | 100% | Yes |
| 2015 | 364 | 100% | Yes |
| 2016 | 365 | 100% | Yes |
| 2017 | 365 | 100% | Yes |
| 2018 | 365 | 100% | Yes |
| 2019 | 365 | 100% | Yes |
| 2020 | 366 | 100% | Yes |
| 2021 | 365 | 100% | Yes |
| 2022 | 363 | 99% | Yes |
| 2023 | 365 | 100% | Yes |
| 2024 | 366 | 100% | Yes |
| 2025 | 365 | 100% | Yes |
| 2026 | 281 | 77% | No |
Latest Records
20| Date | Station | Record | Value | Beat old record by | Old record stood | Significance |
|---|---|---|---|---|---|---|
| 26 September 2026 | Del Rio Intl AP, US | daily high min (Provisional) | 26.1 C (79.0 F) | 0.5 C (0.9 F) | 7 years | 10 of 100 (Routine) |
| 18 September 2026 | Del Rio Intl AP, US | daily high min (Provisional) | 26.7 C (80.1 F) | 1.1 C (2.0 F) | 29 years | 18 of 100 (Routine) |
| 17 September 2026 | Del Rio Intl AP, US | daily high min (Tie, Provisional) | 25.0 C (77.0 F) | tie | 39 years | 4 of 100 (Routine) |
| 13 September 2026 | Del Rio Intl AP, US | daily high min (Provisional) | 26.1 C (79.0 F) | 0.5 C (0.9 F) | 7 years | 10 of 100 (Routine) |
| 12 September 2026 | Del Rio Intl AP, US | daily high min (Provisional) | 26.7 C (80.1 F) | 1.7 C (3.1 F) | 16 years | 16 of 100 (Routine) |
| 9 September 2026 | Del Rio Intl AP, US | daily high min (Provisional) | 26.7 C (80.1 F) | 0.6 C (1.1 F) | 3 years | 8 of 100 (Routine) |
| 8 September 2026 | Del Rio Intl AP, US | daily high min (Provisional) | 26.7 C (80.1 F) | 1.1 C (2.0 F) | 5 years | 11 of 100 (Routine) |
| 24 August 2026 | Del Rio Intl AP, US | daily high max (Tie, Provisional) | 39.4 C (102.9 F) | tie | 73 years | 7 of 100 (Routine) |
| 16 July 2026 | Del Rio Intl AP, US | daily rain | 119.9 mm (4.7 in) | 94.0 mm (3.7 in) | 49 years | 61 of 100 (Major) |
| 14 July 2026 | Del Rio Intl AP, US | daily rain | 41.1 mm (1.6 in) | 5.8 mm (0.23 in) | 32 years | 19 of 100 (Routine) |
| 14 July 2026 | Del Rio Intl AP, US | daily low max (Tie) | 27.2 C (81.0 F) | tie | 36 years | 4 of 100 (Routine) |
| 12 July 2026 | Del Rio Intl AP, US | daily rain | 18.8 mm (0.7 in) | 13.0 mm (0.5 in) | 49 years | 20 of 100 (Routine) |
| 18 May 2026 | Del Rio Intl AP, US | daily high min | 26.1 C (79.0 F) | 1.1 C (2.0 F) | 4 years | 11 of 100 (Routine) |
| 28 April 2026 | Del Rio Intl AP, US | daily high min | 25.0 C (77.0 F) | 2.2 C (4.0 F) | 24 years | 19 of 100 (Routine) |
| 20 April 2026 | Del Rio Intl AP, US | daily low max | 15.0 C (59.0 F) | 1.1 C (2.0 F) | 69 years | 29 of 100 (Routine) |
| 19 April 2026 | Del Rio Intl AP, US | daily low max | 16.7 C (62.1 F) | 2.7 C (4.9 F) | 69 years | 32 of 100 (Routine) |
| 22 March 2026 | Del Rio Intl AP, US | daily high max (Tie) | 35.6 C (96.1 F) | tie | 31 years | 4 of 100 (Routine) |
| 21 March 2026 | Del Rio Intl AP, US | daily high max | 36.7 C (98.1 F) | 3.4 C (6.1 F) | 55 years | 29 of 100 (Routine) |
| 20 March 2026 | Del Rio Intl AP, US | daily high max | 34.4 C (93.9 F) | 0.5 C (0.9 F) | 49 years | 21 of 100 (Routine) |
| 15 March 2026 | Del Rio Intl AP, US | daily high max | 36.1 C (97.0 F) | 3.3 C (5.9 F) | 17 years | 18 of 100 (Routine) |
Climate Trend
67 complete years, 1952 to 2025| Year | Annual mean temperature | Difference from the station mean |
|---|---|---|
| 1952 | 21.4 C | -0.11 C |
| 1953 | 21.9 C | +0.38 C |
| 1954 | 21.7 C | +0.16 C |
| 1955 | 21.2 C | -0.29 C |
| 1956 | 21.8 C | +0.29 C |
| 1964 | 21.0 C | -0.47 C |
| 1965 | 20.9 C | -0.55 C |
| 1966 | 20.2 C | -1.34 C |
| 1967 | 21.1 C | -0.40 C |
| 1968 | 20.0 C | -1.48 C |
| 1969 | 20.8 C | -0.69 C |
| 1970 | 20.0 C | -1.50 C |
| 1971 | 20.9 C | -0.63 C |
| 1972 | 20.9 C | -0.58 C |
| 1973 | 20.5 C | -1.04 C |
| 1974 | 21.0 C | -0.49 C |
| 1975 | 20.6 C | -0.91 C |
| 1976 | 19.7 C | -1.83 C |
| 1977 | 21.2 C | -0.34 C |
| 1978 | 20.7 C | -0.83 C |
| 1979 | 20.4 C | -1.09 C |
| 1980 | 21.6 C | +0.10 C |
| 1981 | 20.9 C | -0.55 C |
| 1982 | 21.0 C | -0.50 C |
| 1983 | 20.7 C | -0.80 C |
| 1984 | 21.4 C | -0.08 C |
| 1985 | 20.6 C | -0.85 C |
| 1986 | 21.4 C | -0.14 C |
| 1987 | 19.9 C | -1.55 C |
| 1988 | 20.8 C | -0.66 C |
| 1989 | 20.9 C | -0.62 C |
| 1990 | 21.2 C | -0.31 C |
| 1991 | 21.5 C | +0.02 C |
| 1992 | 21.0 C | -0.51 C |
| 1993 | 21.3 C | -0.16 C |
| 1994 | 22.0 C | +0.46 C |
| 1995 | 21.8 C | +0.32 C |
| 1996 | 21.8 C | +0.31 C |
| 1997 | 20.5 C | -1.04 C |
| 1998 | 22.4 C | +0.89 C |
| 1999 | 22.1 C | +0.60 C |
| 2000 | 22.4 C | +0.86 C |
| 2001 | 21.9 C | +0.43 C |
| 2002 | 21.5 C | +0.05 C |
| 2003 | 21.3 C | -0.22 C |
| 2004 | 21.0 C | -0.45 C |
| 2005 | 21.5 C | +0.04 C |
| 2006 | 22.5 C | +0.99 C |
| 2007 | 20.6 C | -0.93 C |
| 2008 | 21.5 C | -0.02 C |
| 2009 | 22.0 C | +0.52 C |
| 2010 | 20.9 C | -0.60 C |
| 2011 | 22.5 C | +1.03 C |
| 2012 | 22.9 C | +1.36 C |
| 2013 | 21.9 C | +0.37 C |
| 2014 | 21.6 C | +0.14 C |
| 2015 | 21.5 C | +0.03 C |
| 2016 | 22.1 C | +0.59 C |
| 2017 | 22.1 C | +0.61 C |
| 2018 | 21.8 C | +0.31 C |
| 2019 | 22.3 C | +0.82 C |
| 2020 | 23.4 C | +1.91 C |
| 2021 | 23.4 C | +1.93 C |
| 2022 | 22.7 C | +1.21 C |
| 2023 | 24.1 C | +2.62 C |
| 2024 | 24.6 C | +3.14 C |
| 2025 | 23.5 C | +2.02 C |
The annual mean temperature here has risen by 0.3 C (0.2 to 0.4) per decade over 1952 to 2025. In Fahrenheit: 0.5 F (0.4 to 0.7) 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 | 0.3 C (0.2 to 0.4) per decade | 0.5 F (0.4 to 0.7) per decade | 1952 to 2025 | 67 | Rise |
| Mean daily maximum | 0.3 C (0.2 to 0.4) per decade | 0.5 F (0.3 to 0.7) per decade | 1952 to 2025 | 67 | Rise |
| Mean daily minimum | 0.3 C (0.3 to 0.4) per decade | 0.6 F (0.5 to 0.7) per decade | 1952 to 2025 | 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 2026| Measure | Record | Year of the record | Median year | Years with a value |
|---|---|---|---|---|
| Hottest day (TXx) | 46.1 C (115.0 F) | 2023 | 41.7 C (107.1 F) | 71 |
| Coldest night (TNn) | -12.2 C (10.0 F) | 1989 | -5.0 C (23.0 F) | 71 |
| Wettest day (Rx1day) | 432.6 mm (17.0 in) | 1998 | 64.3 mm (2.5 in) | 71 |
| Wettest five days (Rx5day) | 472.5 mm (18.6 in) | 1998 | 90.2 mm (3.6 in) | 71 |
| Longest dry spell (CDD) | 120 days | 1956 | 50 days | 71 |
Hottest day (TXx)
| Year | Hottest day (TXx) |
|---|---|
| 1951 | 41.7 C (107.1 F) |
| 1952 | 41.1 C (106.0 F) |
| 1953 | 41.7 C (107.1 F) |
| 1954 | 43.3 C (109.9 F) |
| 1955 | 40.6 C (105.1 F) |
| 1956 | 41.7 C (107.1 F) |
| 1957 | 40.6 C (105.1 F) |
| 1963 | 39.4 C (102.9 F) |
| 1964 | 41.7 C (107.1 F) |
| 1965 | 39.4 C (102.9 F) |
| 1966 | 39.4 C (102.9 F) |
| 1967 | 39.4 C (102.9 F) |
| 1968 | 39.4 C (102.9 F) |
| 1969 | 42.8 C (109.0 F) |
| 1970 | 39.4 C (102.9 F) |
| 1971 | 38.3 C (100.9 F) |
| 1972 | 39.4 C (102.9 F) |
| 1973 | 40.6 C (105.1 F) |
| 1974 | 42.2 C (108.0 F) |
| 1975 | 39.4 C (102.9 F) |
| 1976 | 37.2 C (99.0 F) |
| 1977 | 40.6 C (105.1 F) |
| 1978 | 40.6 C (105.1 F) |
| 1979 | 41.1 C (106.0 F) |
| 1980 | 42.2 C (108.0 F) |
| 1981 | 38.9 C (102.0 F) |
| 1982 | 40.6 C (105.1 F) |
| 1983 | 40.6 C (105.1 F) |
| 1984 | 41.1 C (106.0 F) |
| 1985 | 38.9 C (102.0 F) |
| 1986 | 41.1 C (106.0 F) |
| 1987 | 38.3 C (100.9 F) |
| 1988 | 44.4 C (111.9 F) |
| 1989 | 41.7 C (107.1 F) |
| 1990 | 40.0 C (104.0 F) |
| 1991 | 40.0 C (104.0 F) |
| 1992 | 40.6 C (105.1 F) |
| 1993 | 41.7 C (107.1 F) |
| 1994 | 42.2 C (108.0 F) |
| 1995 | 42.2 C (108.0 F) |
| 1996 | 42.2 C (108.0 F) |
| 1997 | 40.0 C (104.0 F) |
| 1998 | 42.2 C (108.0 F) |
| 1999 | 40.6 C (105.1 F) |
| 2000 | 43.3 C (109.9 F) |
| 2001 | 41.1 C (106.0 F) |
| 2002 | 41.7 C (107.1 F) |
| 2003 | 42.2 C (108.0 F) |
| 2004 | 41.7 C (107.1 F) |
| 2005 | 41.7 C (107.1 F) |
| 2006 | 40.6 C (105.1 F) |
| 2007 | 36.7 C (98.1 F) |
| 2008 | 41.7 C (107.1 F) |
| 2009 | 41.7 C (107.1 F) |
| 2010 | 40.0 C (104.0 F) |
| 2011 | 41.7 C (107.1 F) |
| 2012 | 42.8 C (109.0 F) |
| 2013 | 42.2 C (108.0 F) |
| 2014 | 42.2 C (108.0 F) |
| 2015 | 41.1 C (106.0 F) |
| 2016 | 41.7 C (107.1 F) |
| 2017 | 41.7 C (107.1 F) |
| 2018 | 43.3 C (109.9 F) |
| 2019 | 42.8 C (109.0 F) |
| 2020 | 44.4 C (111.9 F) |
| 2021 | 41.1 C (106.0 F) |
| 2022 | 43.3 C (109.9 F) |
| 2023 | 46.1 C (115.0 F) |
| 2024 | 45.0 C (113.0 F) |
| 2025 | 42.8 C (109.0 F) |
| 2026 | 42.2 C (108.0 F) |
Coldest night (TNn)
| Year | Coldest night (TNn) |
|---|---|
| 1951 | -5.0 C (23.0 F) |
| 1952 | -1.1 C (30.0 F) |
| 1953 | -8.3 C (17.1 F) |
| 1954 | -4.4 C (24.1 F) |
| 1955 | -6.1 C (21.0 F) |
| 1956 | -5.0 C (23.0 F) |
| 1957 | -4.4 C (24.1 F) |
| 1963 | -5.0 C (23.0 F) |
| 1964 | -7.2 C (19.0 F) |
| 1965 | -3.9 C (25.0 F) |
| 1966 | -5.0 C (23.0 F) |
| 1967 | -4.4 C (24.1 F) |
| 1968 | -3.9 C (25.0 F) |
| 1969 | -3.3 C (26.1 F) |
| 1970 | -7.8 C (18.0 F) |
| 1971 | -6.1 C (21.0 F) |
| 1972 | -8.3 C (17.1 F) |
| 1973 | -6.7 C (19.9 F) |
| 1974 | -5.6 C (21.9 F) |
| 1975 | -7.2 C (19.0 F) |
| 1976 | -7.2 C (19.0 F) |
| 1977 | -6.7 C (19.9 F) |
| 1978 | -3.9 C (25.0 F) |
| 1979 | -7.8 C (18.0 F) |
| 1980 | -6.1 C (21.0 F) |
| 1981 | -6.1 C (21.0 F) |
| 1982 | -9.4 C (15.1 F) |
| 1983 | -10.6 C (12.9 F) |
| 1984 | -3.3 C (26.1 F) |
| 1985 | -10.0 C (14.0 F) |
| 1986 | -3.9 C (25.0 F) |
| 1987 | -4.4 C (24.1 F) |
| 1988 | -6.1 C (21.0 F) |
| 1989 | -12.2 C (10.0 F) |
| 1990 | -7.2 C (19.0 F) |
| 1991 | -2.2 C (28.0 F) |
| 1992 | -2.8 C (27.0 F) |
| 1993 | -4.4 C (24.1 F) |
| 1994 | -3.3 C (26.1 F) |
| 1995 | -0.6 C (30.9 F) |
| 1996 | -6.7 C (19.9 F) |
| 1997 | -3.9 C (25.0 F) |
| 1998 | -3.9 C (25.0 F) |
| 1999 | -6.7 C (19.9 F) |
| 2000 | -3.3 C (26.1 F) |
| 2001 | -2.2 C (28.0 F) |
| 2002 | -6.7 C (19.9 F) |
| 2003 | -3.3 C (26.1 F) |
| 2004 | -6.1 C (21.0 F) |
| 2005 | -5.0 C (23.0 F) |
| 2006 | -4.4 C (24.1 F) |
| 2007 | -3.3 C (26.1 F) |
| 2008 | -5.0 C (23.0 F) |
| 2009 | -2.8 C (27.0 F) |
| 2010 | -7.8 C (18.0 F) |
| 2011 | -7.2 C (19.0 F) |
| 2012 | -2.8 C (27.0 F) |
| 2013 | -2.8 C (27.0 F) |
| 2014 | -6.0 C (21.2 F) |
| 2015 | -1.0 C (30.2 F) |
| 2016 | -3.2 C (26.2 F) |
| 2017 | -5.5 C (22.1 F) |
| 2018 | -7.1 C (19.2 F) |
| 2019 | -4.3 C (24.3 F) |
| 2020 | -2.1 C (28.2 F) |
| 2021 | -11.6 C (11.1 F) |
| 2022 | -6.6 C (20.1 F) |
| 2023 | -0.5 C (31.1 F) |
| 2024 | -5.5 C (22.1 F) |
| 2025 | -4.3 C (24.3 F) |
| 2026 | -5.6 C (21.9 F) |
Wettest day (Rx1day)
| Year | Wettest day (Rx1day) |
|---|---|
| 1951 | 43.2 mm (1.7 in) |
| 1952 | 64.8 mm (2.6 in) |
| 1953 | 97.8 mm (3.9 in) |
| 1954 | 42.7 mm (1.7 in) |
| 1955 | 30.0 mm (1.2 in) |
| 1956 | 55.4 mm (2.2 in) |
| 1957 | 91.9 mm (3.6 in) |
| 1963 | 33.8 mm (1.3 in) |
| 1964 | 105.2 mm (4.1 in) |
| 1965 | 40.9 mm (1.6 in) |
| 1966 | 68.3 mm (2.7 in) |
| 1967 | 83.3 mm (3.3 in) |
| 1968 | 51.1 mm (2.0 in) |
| 1969 | 193.0 mm (7.6 in) |
| 1970 | 132.3 mm (5.2 in) |
| 1971 | 70.1 mm (2.8 in) |
| 1972 | 47.2 mm (1.9 in) |
| 1973 | 47.5 mm (1.9 in) |
| 1974 | 62.0 mm (2.4 in) |
| 1975 | 122.9 mm (4.8 in) |
| 1976 | 72.6 mm (2.9 in) |
| 1977 | 39.4 mm (1.6 in) |
| 1978 | 52.6 mm (2.1 in) |
| 1979 | 58.2 mm (2.3 in) |
| 1980 | 40.1 mm (1.6 in) |
| 1981 | 124.0 mm (4.9 in) |
| 1982 | 28.2 mm (1.1 in) |
| 1983 | 54.9 mm (2.2 in) |
| 1984 | 39.9 mm (1.6 in) |
| 1985 | 48.0 mm (1.9 in) |
| 1986 | 42.4 mm (1.7 in) |
| 1987 | 65.3 mm (2.6 in) |
| 1988 | 54.4 mm (2.1 in) |
| 1989 | 31.5 mm (1.2 in) |
| 1990 | 70.1 mm (2.8 in) |
| 1991 | 67.3 mm (2.6 in) |
| 1992 | 60.7 mm (2.4 in) |
| 1993 | 67.8 mm (2.7 in) |
| 1994 | 55.6 mm (2.2 in) |
| 1995 | 95.5 mm (3.8 in) |
| 1996 | 59.2 mm (2.3 in) |
| 1997 | 51.1 mm (2.0 in) |
| 1998 | 432.6 mm (17.0 in) |
| 1999 | 61.5 mm (2.4 in) |
| 2000 | 67.3 mm (2.6 in) |
| 2001 | 31.8 mm (1.3 in) |
| 2002 | 64.3 mm (2.5 in) |
| 2003 | 165.9 mm (6.5 in) |
| 2004 | 51.8 mm (2.0 in) |
| 2005 | 192.8 mm (7.6 in) |
| 2006 | 52.3 mm (2.1 in) |
| 2007 | 68.1 mm (2.7 in) |
| 2008 | 154.7 mm (6.1 in) |
| 2009 | 68.1 mm (2.7 in) |
| 2010 | 180.8 mm (7.1 in) |
| 2011 | 113.5 mm (4.5 in) |
| 2012 | 64.5 mm (2.5 in) |
| 2013 | 56.1 mm (2.2 in) |
| 2014 | 109.5 mm (4.3 in) |
| 2015 | 61.0 mm (2.4 in) |
| 2016 | 79.2 mm (3.1 in) |
| 2017 | 128.8 mm (5.1 in) |
| 2018 | 93.0 mm (3.7 in) |
| 2019 | 107.4 mm (4.2 in) |
| 2020 | 39.4 mm (1.6 in) |
| 2021 | 55.1 mm (2.2 in) |
| 2022 | 81.0 mm (3.2 in) |
| 2023 | 40.6 mm (1.6 in) |
| 2024 | 115.8 mm (4.6 in) |
| 2025 | 53.6 mm (2.1 in) |
| 2026 | 119.9 mm (4.7 in) |
Wettest five days (Rx5day)
| Year | Wettest five days (Rx5day) |
|---|---|
| 1951 | 46.3 mm (1.8 in) |
| 1952 | 68.4 mm (2.7 in) |
| 1953 | 114.8 mm (4.5 in) |
| 1954 | 64.6 mm (2.5 in) |
| 1955 | 54.2 mm (2.1 in) |
| 1956 | 55.4 mm (2.2 in) |
| 1957 | 111.7 mm (4.4 in) |
| 1963 | 40.6 mm (1.6 in) |
| 1964 | 288.8 mm (11.4 in) |
| 1965 | 75.0 mm (3.0 in) |
| 1966 | 93.2 mm (3.7 in) |
| 1967 | 95.5 mm (3.8 in) |
| 1968 | 70.1 mm (2.8 in) |
| 1969 | 193.0 mm (7.6 in) |
| 1970 | 203.0 mm (8.0 in) |
| 1971 | 127.3 mm (5.0 in) |
| 1972 | 97.0 mm (3.8 in) |
| 1973 | 84.1 mm (3.3 in) |
| 1974 | 69.2 mm (2.7 in) |
| 1975 | 192.1 mm (7.6 in) |
| 1976 | 107.5 mm (4.2 in) |
| 1977 | 60.2 mm (2.4 in) |
| 1978 | 69.9 mm (2.8 in) |
| 1979 | 103.7 mm (4.1 in) |
| 1980 | 52.1 mm (2.1 in) |
| 1981 | 124.8 mm (4.9 in) |
| 1982 | 40.9 mm (1.6 in) |
| 1983 | 83.2 mm (3.3 in) |
| 1984 | 66.8 mm (2.6 in) |
| 1985 | 48.0 mm (1.9 in) |
| 1986 | 73.9 mm (2.9 in) |
| 1987 | 91.0 mm (3.6 in) |
| 1988 | 90.2 mm (3.6 in) |
| 1989 | 31.5 mm (1.2 in) |
| 1990 | 77.5 mm (3.1 in) |
| 1991 | 97.0 mm (3.8 in) |
| 1992 | 108.7 mm (4.3 in) |
| 1993 | 86.6 mm (3.4 in) |
| 1994 | 73.1 mm (2.9 in) |
| 1995 | 151.5 mm (6.0 in) |
| 1996 | 62.8 mm (2.5 in) |
| 1997 | 62.0 mm (2.4 in) |
| 1998 | 472.5 mm (18.6 in) |
| 1999 | 75.7 mm (3.0 in) |
| 2000 | 75.9 mm (3.0 in) |
| 2001 | 34.8 mm (1.4 in) |
| 2002 | 118.7 mm (4.7 in) |
| 2003 | 175.3 mm (6.9 in) |
| 2004 | 116.9 mm (4.6 in) |
| 2005 | 205.1 mm (8.1 in) |
| 2006 | 52.3 mm (2.1 in) |
| 2007 | 94.5 mm (3.7 in) |
| 2008 | 160.8 mm (6.3 in) |
| 2009 | 68.4 mm (2.7 in) |
| 2010 | 193.5 mm (7.6 in) |
| 2011 | 113.5 mm (4.5 in) |
| 2012 | 69.1 mm (2.7 in) |
| 2013 | 76.4 mm (3.0 in) |
| 2014 | 118.9 mm (4.7 in) |
| 2015 | 106.8 mm (4.2 in) |
| 2016 | 143.5 mm (5.6 in) |
| 2017 | 139.5 mm (5.5 in) |
| 2018 | 104.4 mm (4.1 in) |
| 2019 | 133.1 mm (5.2 in) |
| 2020 | 54.1 mm (2.1 in) |
| 2021 | 71.9 mm (2.8 in) |
| 2022 | 138.2 mm (5.4 in) |
| 2023 | 77.5 mm (3.1 in) |
| 2024 | 184.7 mm (7.3 in) |
| 2025 | 55.4 mm (2.2 in) |
| 2026 | 182.9 mm (7.2 in) |
Longest dry spell (CDD)
| Year | Longest dry spell (CDD) |
|---|---|
| 1951 | 81 days |
| 1952 | 100 days |
| 1953 | 91 days |
| 1954 | 97 days |
| 1955 | 47 days |
| 1956 | 120 days |
| 1957 | 73 days |
| 1963 | 61 days |
| 1964 | 53 days |
| 1965 | 45 days |
| 1966 | 58 days |
| 1967 | 36 days |
| 1968 | 31 days |
| 1969 | 52 days |
| 1970 | 70 days |
| 1971 | 55 days |
| 1972 | 37 days |
| 1973 | 62 days |
| 1974 | 66 days |
| 1975 | 61 days |
| 1976 | 42 days |
| 1977 | 58 days |
| 1978 | 50 days |
| 1979 | 62 days |
| 1980 | 44 days |
| 1981 | 35 days |
| 1982 | 38 days |
| 1983 | 42 days |
| 1984 | 39 days |
| 1985 | 42 days |
| 1986 | 59 days |
| 1987 | 31 days |
| 1988 | 37 days |
| 1989 | 35 days |
| 1990 | 45 days |
| 1991 | 36 days |
| 1992 | 38 days |
| 1993 | 47 days |
| 1994 | 46 days |
| 1995 | 47 days |
| 1996 | 58 days |
| 1997 | 30 days |
| 1998 | 71 days |
| 1999 | 75 days |
| 2000 | 48 days |
| 2001 | 43 days |
| 2002 | 77 days |
| 2003 | 37 days |
| 2004 | 27 days |
| 2005 | 51 days |
| 2006 | 43 days |
| 2007 | 45 days |
| 2008 | 75 days |
| 2009 | 69 days |
| 2010 | 100 days |
| 2011 | 89 days |
| 2012 | 58 days |
| 2013 | 80 days |
| 2014 | 56 days |
| 2015 | 35 days |
| 2016 | 41 days |
| 2017 | 62 days |
| 2018 | 49 days |
| 2019 | 97 days |
| 2020 | 63 days |
| 2021 | 33 days |
| 2022 | 74 days |
| 2023 | 49 days |
| 2024 | 50 days |
| 2025 | 75 days |
| 2026 | 44 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
61 years with a frostAcross 61 years with a frost, the median last spring frost at Del Rio Intl AP falls on 26 February and the median first autumn frost on 1 December, which leaves a median of 285 days between them.
In 1992 to 2024 the median growing season was 290 days. That is 12 days more than in 1952 to 1990.
Fitted over all years, the growing season changes by +4.0 days per decade at this station.
| Measure | Median, all years | Earliest period (1952 to 1990) | Recent period (1992 to 2024) | Recent against earliest | Fitted trend |
|---|---|---|---|---|---|
| Last spring frost | 26 February | 27 February | 20 February | 7 days earlier | -2.4 days per decade |
| First autumn frost | 1 December | 29 November | 6 December | 7 days later | +1.5 days per decade |
| Growing days | 285 days | 278 days | 290 days | 12 days more | +4.0 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, 1952 to 2025A day with at least 63.5 mm (2.5 in) of rain is expected about once in 2 years. A day with at least 325.0 mm (12.8 in) of rain is expected about once in 100 years.
| Expected about once in | A day with at least | Note |
|---|---|---|
| 2 years | 63.5 mm (2.5 in) | |
| 5 years | 99.0 mm (3.9 in) | |
| 10 years | 132.4 mm (5.2 in) | |
| 25 years | 190.5 mm (7.5 in) | |
| 50 years | 249.2 mm (9.8 in) | |
| 100 years | 325.0 mm (12.8 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 1952 to 2025.
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: 432.6 mm (17.0 in) in 1998; 193.0 mm (7.6 in) in 1969; 192.8 mm (7.6 in) in 2005.
Station Changes
3 suspected3 changes were suspected in the annual mean temperature of Del Rio Intl AP, at 1986, 1991 and 2020. Each is measured against neighbouring stations.
- Relative to 5 neighbouring stations, the station's annual mean temperature from 1986 ran 0.5 C (0.9 F) lower than in the years before (possible change).
- Relative to 5 neighbouring stations, the station's annual mean temperature from 1991 ran 0.4 C (0.6 F) higher than in the years before (possible change).
- Relative to 5 neighbouring stations, the station's annual mean temperature from 2020 ran 0.7 C (1.3 F) higher than in the years before (likely change).
| Year | Shift (C) | Shift (F) | Strength | Neighbours |
|---|---|---|---|---|
| 1986 | -0.5 | -0.9 | possible | 5 |
| 1991 | +0.4 | +0.6 | possible | 5 |
| 2020 | +0.7 | +1.3 | likely | 5 |
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
2011 to 2025 against 1961 to 1990Over 2011 to 2025, Del Rio Intl AP had a mean temperature of 22.7 C (72.9 F) and 439.8 mm (17.3 in) of rain a year. The 3 stations whose 1961 to 1990 climate was closest to that are Nuevo Laredo (Mexico, 253 km away), Lampazos (Smn) (Mexico, 261 km away) and Laredo 2 (United States, 249 km away).
| Twin station | Country | Distance away | Mean temperature, 1961-1990 | Rain a year, 1961-1990 | Climate difference |
|---|---|---|---|---|---|
| Nuevo Laredo | Mexico | 253 km (157 mi) | 22.7 C (72.8 F) | 508.3 mm (20.0 in) | 0.65 |
| Lampazos (Smn) | Mexico | 261 km (162 mi) | 22.7 C (72.8 F) | 506.3 mm (19.9 in) | 0.74 |
| Laredo 2 | United States | 249 km (155 mi) | 22.8 C (73.1 F) | 562.7 mm (22.2 in) | 0.85 |
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 2026-10-13 (13 October 2026). Records are computed by this site and are not official.
Data as of . Last revised (2026-10-13).