Borrego Desert Park Weather Records (USC00040983)
Record envelope, standing records and threshold days for Borrego Desert Park (USC00040983), California, United States, with 85 years of record.
Key Facts for Borrego Desert Park
- Borrego Desert Park (USC00040983) is a weather station in California, United States at 33.26 latitude and -116.40 longitude, 247 m (810 ft) above sea level.
- The station reports from 1942 to 2026, 85 years of record.
- 1,464 records set at Borrego Desert Park still stand.
- Records are tracked for tmax, tmin, prcp, snow, snwd: an element needs 30 years of data to be eligible.
- Borrego Desert Park set a daily record precipitation of 24.4 mm (1.0 in) on 10 October 2026 (provisional).
Provisional Records
Records set in the last 60 days are provisional until they clear the revision window.
About the Station
- Location: California, United States, 33.26 latitude, -116.40 longitude.
- Elevation: 247 m (810 ft).
- Period of record: 1942 to 2026, 85 years.
- Eligible elements: tmax, tmin, prcp, snow, snwd.
Daily Record Envelope and 2026
21 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) | -6.7 C (19.9 F) | 27.8 C (82.0 F) | 4.4 C (39.9 F) |
| Feb | 36.7 C (98.1 F) | -4.4 C (24.1 F) | 36.7 C (98.1 F) | 5.0 C (41.0 F) |
| Mar | 41.1 C (106.0 F) | -2.2 C (28.0 F) | 41.1 C (106.0 F) | 10.0 C (50.0 F) |
| Apr | 43.9 C (111.0 F) | -2.2 C (28.0 F) | 35.6 C (96.1 F) | 9.4 C (48.9 F) |
| May | 45.6 C (114.1 F) | 1.1 C (34.0 F) | 42.2 C (108.0 F) | 10.0 C (50.0 F) |
| Jun | 50.0 C (122.0 F) | 7.2 C (45.0 F) | 43.9 C (111.0 F) | 15.6 C (60.1 F) |
| Jul | 49.4 C (120.9 F) | 13.3 C (55.9 F) | 46.7 C (116.1 F) | 18.3 C (64.9 F) |
| Aug | 48.9 C (120.0 F) | 12.8 C (55.0 F) | 47.8 C (118.0 F) | 24.4 C (75.9 F) |
| Sep | 47.2 C (117.0 F) | 9.4 C (48.9 F) | 43.9 C (111.0 F) | 16.7 C (62.1 F) |
| Oct | 45.0 C (113.0 F) | 0.6 C (33.1 F) | 41.1 C (106.0 F) | 19.4 C (66.9 F) |
| Nov | 36.7 C (98.1 F) | -0.6 C (30.9 F) | n/a | n/a |
| Dec | 30.6 C (87.1 F) | -5.0 C (23.0 F) | n/a | n/a |
Which Years Hold Standing Records
1,464 standing records| Year set | Standing records |
|---|---|
| 1967 | 10 |
| 1968 | 23 |
| 1969 | 24 |
| 1970 | 20 |
| 1971 | 59 |
| 1972 | 42 |
| 1973 | 20 |
| 1974 | 14 |
| 1975 | 21 |
| 1976 | 20 |
| 1977 | 25 |
| 1978 | 23 |
| 1979 | 25 |
| 1980 | 47 |
| 1981 | 19 |
| 1982 | 29 |
| 1983 | 31 |
| 1984 | 22 |
| 1985 | 41 |
| 1986 | 20 |
| 1987 | 29 |
| 1988 | 15 |
| 1989 | 43 |
| 1990 | 45 |
| 1991 | 34 |
| 1992 | 15 |
| 1993 | 17 |
| 1994 | 22 |
| 1995 | 18 |
| 1996 | 24 |
| 1997 | 9 |
| 1998 | 22 |
| 1999 | 26 |
| 2000 | 19 |
| 2001 | 21 |
| 2002 | 18 |
| 2003 | 33 |
| 2004 | 15 |
| 2005 | 13 |
| 2006 | 17 |
| 2007 | 16 |
| 2008 | 19 |
| 2009 | 21 |
| 2010 | 22 |
| 2011 | 40 |
| 2012 | 16 |
| 2013 | 27 |
| 2014 | 17 |
| 2015 | 22 |
| 2016 | 23 |
| 2017 | 28 |
| 2018 | 17 |
| 2019 | 17 |
| 2020 | 36 |
| 2021 | 30 |
| 2022 | 17 |
| 2023 | 22 |
| 2024 | 29 |
| 2025 | 20 |
| 2026 | 35 |
All-Time Record Progression
2 new records| Date | Kind | Detail |
|---|---|---|
| 1977-08-17 | Record daily precipitation | Record daily precipitation 69.3 mm (2.7 in) |
| 2006-07-22 | Record high minimum temperature | Record high minimum temperature 34.4 C (93.9 F) |
Wettest Day of Each Month
Aug: 69.3 mm (2.7 in)| Month | Record daily precipitation (mm) | Date |
|---|---|---|
| Jan | 58.7 mm (2.3 in) | 23 January 1943 |
| Feb | 68.8 mm (2.7 in) | 14 February 2019 |
| Mar | 62.5 mm (2.5 in) | 2 March 1983 |
| Apr | 20.6 mm (0.8 in) | 2 April 1968 |
| May | 26.4 mm (1.0 in) | 2 May 1980 |
| Jun | 7.4 mm (0.29 in) | 25 June 1954 |
| Jul | 50.8 mm (2.0 in) | 22 July 2013 |
| Aug | 69.3 mm (2.7 in) | 17 August 1977 |
| Sep | 53.1 mm (2.1 in) | 11 September 1976 |
| Oct | 48.0 mm (1.9 in) | 17 October 1948 |
| Nov | 42.9 mm (1.7 in) | 23 November 1965 |
| Dec | 53.3 mm (2.1 in) | 29 December 2004 |
Period of Record Coverage
1965 to 2026| Year | Days with data | Share of year | Complete |
|---|---|---|---|
| 1965 | 31 | 8% | No |
| 1967 | 61 | 17% | No |
| 1968 | 366 | 100% | Yes |
| 1969 | 365 | 100% | Yes |
| 1970 | 365 | 100% | Yes |
| 1971 | 365 | 100% | Yes |
| 1972 | 365 | 100% | Yes |
| 1973 | 365 | 100% | Yes |
| 1974 | 365 | 100% | Yes |
| 1975 | 365 | 100% | Yes |
| 1976 | 365 | 100% | Yes |
| 1977 | 364 | 100% | Yes |
| 1978 | 365 | 100% | Yes |
| 1979 | 365 | 100% | Yes |
| 1980 | 365 | 100% | Yes |
| 1981 | 365 | 100% | Yes |
| 1982 | 365 | 100% | Yes |
| 1983 | 365 | 100% | Yes |
| 1984 | 366 | 100% | Yes |
| 1985 | 363 | 99% | Yes |
| 1986 | 362 | 99% | Yes |
| 1987 | 364 | 100% | Yes |
| 1988 | 360 | 98% | Yes |
| 1989 | 363 | 99% | Yes |
| 1990 | 363 | 99% | Yes |
| 1991 | 362 | 99% | Yes |
| 1992 | 365 | 100% | Yes |
| 1993 | 354 | 97% | Yes |
| 1994 | 361 | 99% | Yes |
| 1995 | 365 | 100% | Yes |
| 1996 | 361 | 99% | Yes |
| 1997 | 362 | 99% | Yes |
| 1998 | 360 | 99% | Yes |
| 1999 | 358 | 98% | Yes |
| 2000 | 361 | 99% | Yes |
| 2001 | 355 | 97% | Yes |
| 2002 | 361 | 99% | Yes |
| 2003 | 360 | 99% | Yes |
| 2004 | 348 | 95% | Yes |
| 2005 | 354 | 97% | Yes |
| 2006 | 331 | 91% | Yes |
| 2007 | 357 | 98% | Yes |
| 2008 | 350 | 96% | Yes |
| 2009 | 365 | 100% | Yes |
| 2010 | 365 | 100% | Yes |
| 2011 | 338 | 93% | Yes |
| 2012 | 366 | 100% | Yes |
| 2013 | 365 | 100% | Yes |
| 2014 | 365 | 100% | Yes |
| 2015 | 365 | 100% | Yes |
| 2016 | 358 | 98% | Yes |
| 2017 | 365 | 100% | Yes |
| 2018 | 362 | 99% | Yes |
| 2019 | 364 | 100% | Yes |
| 2020 | 366 | 100% | Yes |
| 2021 | 363 | 99% | Yes |
| 2022 | 358 | 98% | Yes |
| 2023 | 365 | 100% | Yes |
| 2024 | 366 | 100% | Yes |
| 2025 | 363 | 99% | Yes |
| 2026 | 275 | 75% | No |
Latest Records
20| Date | Station | Record | Value | Beat old record by | Old record stood | Significance |
|---|---|---|---|---|---|---|
| 10 October 2026 | Borrego Desert Park, US | daily rain (Provisional) | 24.4 mm (1.0 in) | 0.3 mm (0.01 in) | 40 years | 20 of 100 (Routine) |
| 5 October 2026 | Borrego Desert Park, US | daily high min (Tie, Provisional) | 26.1 C (79.0 F) | tie | 1 year | 1 of 100 (Routine) |
| 4 October 2026 | Borrego Desert Park, US | daily high min (Provisional) | 25.6 C (78.1 F) | 0.6 C (1.1 F) | 1 year | 7 of 100 (Routine) |
| 3 October 2026 | Borrego Desert Park, US | daily high min (Provisional) | 27.2 C (81.0 F) | 1.1 C (2.0 F) | 1 year | 8 of 100 (Routine) |
| 26 September 2026 | Borrego Desert Park, US | daily high min (Provisional) | 28.3 C (82.9 F) | 1.1 C (2.0 F) | 11 years | 11 of 100 (Routine) |
| 11 September 2026 | Borrego Desert Park, US | daily high min (Provisional) | 29.4 C (84.9 F) | 1.6 C (2.9 F) | 55 years | 26 of 100 (Routine) |
| 10 September 2026 | Borrego Desert Park, US | daily high min (Provisional) | 30.0 C (86.0 F) | 1.1 C (2.0 F) | 1 year | 8 of 100 (Routine) |
| 9 September 2026 | Borrego Desert Park, US | daily high min (Tie, Provisional) | 28.9 C (84.0 F) | tie | 27 years | 3 of 100 (Routine) |
| 28 August 2026 | Borrego Desert Park, US | daily high min (Tie, Provisional) | 30.6 C (87.1 F) | tie | 44 years | 4 of 100 (Routine) |
| 27 August 2026 | Borrego Desert Park, US | daily high min (Provisional) | 31.7 C (89.1 F) | 1.1 C (2.0 F) | 15 years | 13 of 100 (Routine) |
| 3 August 2026 | Borrego Desert Park, US | daily high max | 47.2 C (117.0 F) | 0.5 C (0.9 F) | 28 years | 15 of 100 (Routine) |
| 3 August 2026 | Borrego Desert Park, US | daily high min | 30.0 C (86.0 F) | 0.6 C (1.1 F) | 28 years | 15 of 100 (Routine) |
| 2 August 2026 | Borrego Desert Park, US | daily high max | 47.8 C (118.0 F) | 1.7 C (3.1 F) | 53 years | 27 of 100 (Routine) |
| 2 August 2026 | Borrego Desert Park, US | daily high min (Tie) | 30.6 C (87.1 F) | tie | 32 years | 3 of 100 (Routine) |
| 28 June 2026 | Borrego Desert Park, US | daily low max (Tie) | 32.8 C (91.0 F) | tie | 35 years | 4 of 100 (Routine) |
| 13 June 2026 | Borrego Desert Park, US | daily high min (Tie) | 26.7 C (80.1 F) | tie | 47 years | 5 of 100 (Routine) |
| 12 June 2026 | Borrego Desert Park, US | daily high min | 27.8 C (82.0 F) | 1.1 C (2.0 F) | 7 years | 10 of 100 (Routine) |
| 11 May 2026 | Borrego Desert Park, US | daily high max | 42.2 C (108.0 F) | 1.1 C (2.0 F) | 29 years | 16 of 100 (Routine) |
| 10 May 2026 | Borrego Desert Park, US | daily high max (Tie) | 40.6 C (105.1 F) | tie | 41 years | 4 of 100 (Routine) |
| 6 April 2026 | Borrego Desert Park, US | daily high min (Tie) | 20.0 C (68.0 F) | tie | 36 years | 4 of 100 (Routine) |
Climate Trend
55 complete years, 1968 to 2025| Year | Annual mean temperature | Difference from the station mean |
|---|---|---|
| 1968 | 22.7 C | -0.25 C |
| 1969 | 22.6 C | -0.40 C |
| 1970 | 22.4 C | -0.59 C |
| 1971 | 21.7 C | -1.32 C |
| 1972 | 22.5 C | -0.47 C |
| 1973 | 22.2 C | -0.76 C |
| 1974 | 22.7 C | -0.28 C |
| 1975 | 22.1 C | -0.89 C |
| 1976 | 22.3 C | -0.65 C |
| 1977 | 22.9 C | -0.06 C |
| 1978 | 22.3 C | -0.73 C |
| 1979 | 22.3 C | -0.71 C |
| 1980 | 22.7 C | -0.30 C |
| 1981 | 23.6 C | +0.65 C |
| 1982 | 21.6 C | -1.39 C |
| 1983 | 21.5 C | -1.53 C |
| 1984 | 22.5 C | -0.49 C |
| 1985 | 22.0 C | -0.96 C |
| 1986 | 22.7 C | -0.27 C |
| 1987 | 22.7 C | -0.28 C |
| 1988 | 23.5 C | +0.51 C |
| 1989 | 23.9 C | +0.95 C |
| 1990 | 23.4 C | +0.40 C |
| 1991 | 23.0 C | -0.03 C |
| 1992 | 22.7 C | -0.24 C |
| 1993 | 22.0 C | -1.00 C |
| 1994 | 22.4 C | -0.58 C |
| 1995 | 23.3 C | +0.30 C |
| 1996 | 23.9 C | +0.89 C |
| 1997 | 23.3 C | +0.32 C |
| 1998 | 21.6 C | -1.37 C |
| 1999 | 22.7 C | -0.29 C |
| 2000 | 23.3 C | +0.27 C |
| 2001 | 23.4 C | +0.41 C |
| 2002 | 23.2 C | +0.19 C |
| 2003 | 23.5 C | +0.48 C |
| 2005 | 22.6 C | -0.36 C |
| 2007 | 23.2 C | +0.18 C |
| 2008 | 23.3 C | +0.35 C |
| 2009 | 23.0 C | +0.05 C |
| 2010 | 22.2 C | -0.79 C |
| 2012 | 24.0 C | +1.04 C |
| 2013 | 23.3 C | +0.27 C |
| 2014 | 24.5 C | +1.47 C |
| 2015 | 24.0 C | +0.98 C |
| 2016 | 24.2 C | +1.17 C |
| 2017 | 24.2 C | +1.26 C |
| 2018 | 24.2 C | +1.24 C |
| 2019 | 22.5 C | -0.50 C |
| 2020 | 23.9 C | +0.96 C |
| 2021 | 24.2 C | +1.20 C |
| 2022 | 23.8 C | +0.84 C |
| 2023 | 22.5 C | -0.50 C |
| 2024 | 24.0 C | +1.02 C |
| 2025 | 23.8 C | +0.83 C |
The annual mean temperature here has risen by 0.3 C (0.2 to 0.4) per decade over 1968 to 2025. In Fahrenheit: 0.5 F (0.3 to 0.7) per decade. The slope is a straight line fitted to 55 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 (0.3 to 0.7) per decade | 1968 to 2025 | 55 | Rise |
| Mean daily maximum | 0.15 C (0.03 to 0.27) per decade | 0.3 F (0.1 to 0.5) per decade | 1968 to 2025 | 55 | Rise |
| Mean daily minimum | 0.4 C (0.3 to 0.5) per decade | 0.8 F (0.6 to 0.9) per decade | 1968 to 2025 | 55 | 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
1942 to 2026| Measure | Record | Year of the record | Median year | Years with a value |
|---|---|---|---|---|
| Hottest day (TXx) | 50.0 C (122.0 F) | 1990 | 47.2 C (117.0 F) | 61 |
| Coldest night (TNn) | -6.7 C (19.9 F) | 1971 | 0.0 C (32.0 F) | 61 |
| Wettest day (Rx1day) | 69.3 mm (2.7 in) | 1977 | 28.4 mm (1.1 in) | 83 |
| Wettest five days (Rx5day) | 124.2 mm (4.9 in) | 2010 | 34.3 mm (1.4 in) | 83 |
| Longest dry spell (CDD) | 284 days | 2009 | 106 days | 83 |
Hottest day (TXx)
| Year | Hottest day (TXx) |
|---|---|
| 1942 | n/a |
| 1943 | n/a |
| 1946 | n/a |
| 1947 | n/a |
| 1948 | n/a |
| 1949 | n/a |
| 1950 | n/a |
| 1951 | n/a |
| 1952 | n/a |
| 1953 | n/a |
| 1954 | n/a |
| 1955 | n/a |
| 1956 | n/a |
| 1957 | n/a |
| 1958 | n/a |
| 1959 | n/a |
| 1960 | n/a |
| 1961 | n/a |
| 1962 | n/a |
| 1963 | n/a |
| 1964 | n/a |
| 1965 | 46.1 C (115.0 F) |
| 1966 | n/a |
| 1967 | 35.6 C (96.1 F) |
| 1968 | 46.7 C (116.1 F) |
| 1969 | 48.3 C (118.9 F) |
| 1970 | 48.9 C (120.0 F) |
| 1971 | 47.8 C (118.0 F) |
| 1972 | 47.8 C (118.0 F) |
| 1973 | 48.3 C (118.9 F) |
| 1974 | 47.8 C (118.0 F) |
| 1975 | 47.8 C (118.0 F) |
| 1976 | 47.2 C (117.0 F) |
| 1977 | 48.9 C (120.0 F) |
| 1978 | 46.7 C (116.1 F) |
| 1979 | 47.2 C (117.0 F) |
| 1980 | 47.8 C (118.0 F) |
| 1981 | 47.8 C (118.0 F) |
| 1982 | 46.7 C (116.1 F) |
| 1983 | 46.1 C (115.0 F) |
| 1984 | 46.7 C (116.1 F) |
| 1985 | 48.3 C (118.9 F) |
| 1986 | 46.7 C (116.1 F) |
| 1987 | 46.1 C (115.0 F) |
| 1988 | 46.7 C (116.1 F) |
| 1989 | 47.8 C (118.0 F) |
| 1990 | 50.0 C (122.0 F) |
| 1991 | 48.9 C (120.0 F) |
| 1992 | 45.6 C (114.1 F) |
| 1993 | 47.2 C (117.0 F) |
| 1994 | 47.2 C (117.0 F) |
| 1995 | 49.4 C (120.9 F) |
| 1996 | 47.8 C (118.0 F) |
| 1997 | 47.2 C (117.0 F) |
| 1998 | 48.3 C (118.9 F) |
| 1999 | 45.6 C (114.1 F) |
| 2000 | 47.2 C (117.0 F) |
| 2001 | 47.2 C (117.0 F) |
| 2002 | 46.1 C (115.0 F) |
| 2003 | 48.3 C (118.9 F) |
| 2004 | 45.6 C (114.1 F) |
| 2005 | 48.9 C (120.0 F) |
| 2006 | 47.8 C (118.0 F) |
| 2007 | 46.1 C (115.0 F) |
| 2008 | 46.7 C (116.1 F) |
| 2009 | 47.2 C (117.0 F) |
| 2010 | 45.6 C (114.1 F) |
| 2011 | 47.2 C (117.0 F) |
| 2012 | 46.7 C (116.1 F) |
| 2013 | 48.9 C (120.0 F) |
| 2014 | 47.2 C (117.0 F) |
| 2015 | 47.2 C (117.0 F) |
| 2016 | 50.0 C (122.0 F) |
| 2017 | 49.4 C (120.9 F) |
| 2018 | 48.3 C (118.9 F) |
| 2019 | 47.8 C (118.0 F) |
| 2020 | 49.4 C (120.9 F) |
| 2021 | 48.3 C (118.9 F) |
| 2022 | 45.6 C (114.1 F) |
| 2023 | 47.2 C (117.0 F) |
| 2024 | 49.4 C (120.9 F) |
| 2025 | 46.7 C (116.1 F) |
| 2026 | 47.8 C (118.0 F) |
Coldest night (TNn)
| Year | Coldest night (TNn) |
|---|---|
| 1942 | n/a |
| 1943 | n/a |
| 1946 | n/a |
| 1947 | n/a |
| 1948 | n/a |
| 1949 | n/a |
| 1950 | n/a |
| 1951 | n/a |
| 1952 | n/a |
| 1953 | n/a |
| 1954 | n/a |
| 1955 | n/a |
| 1956 | n/a |
| 1957 | n/a |
| 1958 | n/a |
| 1959 | n/a |
| 1960 | n/a |
| 1961 | n/a |
| 1962 | n/a |
| 1963 | n/a |
| 1964 | n/a |
| 1965 | 20.6 C (69.1 F) |
| 1966 | n/a |
| 1967 | -0.6 C (30.9 F) |
| 1968 | -1.7 C (28.9 F) |
| 1969 | 0.0 C (32.0 F) |
| 1970 | -3.3 C (26.1 F) |
| 1971 | -6.7 C (19.9 F) |
| 1972 | -3.9 C (25.0 F) |
| 1973 | -1.1 C (30.0 F) |
| 1974 | -3.9 C (25.0 F) |
| 1975 | 0.0 C (32.0 F) |
| 1976 | -1.7 C (28.9 F) |
| 1977 | -2.2 C (28.0 F) |
| 1978 | -2.8 C (27.0 F) |
| 1979 | -1.7 C (28.9 F) |
| 1980 | 2.8 C (37.0 F) |
| 1981 | 2.2 C (36.0 F) |
| 1982 | -0.6 C (30.9 F) |
| 1983 | 0.6 C (33.1 F) |
| 1984 | 0.6 C (33.1 F) |
| 1985 | -3.3 C (26.1 F) |
| 1986 | 0.6 C (33.1 F) |
| 1987 | -2.2 C (28.0 F) |
| 1988 | -2.2 C (28.0 F) |
| 1989 | -2.8 C (27.0 F) |
| 1990 | -5.0 C (23.0 F) |
| 1991 | 0.0 C (32.0 F) |
| 1992 | -0.6 C (30.9 F) |
| 1993 | -0.6 C (30.9 F) |
| 1994 | 0.0 C (32.0 F) |
| 1995 | 2.2 C (36.0 F) |
| 1996 | 1.7 C (35.1 F) |
| 1997 | 0.6 C (33.1 F) |
| 1998 | -1.7 C (28.9 F) |
| 1999 | -4.4 C (24.1 F) |
| 2000 | 2.8 C (37.0 F) |
| 2001 | 0.0 C (32.0 F) |
| 2002 | -2.2 C (28.0 F) |
| 2003 | 0.0 C (32.0 F) |
| 2004 | 0.0 C (32.0 F) |
| 2005 | 1.7 C (35.1 F) |
| 2006 | -0.6 C (30.9 F) |
| 2007 | -4.4 C (24.1 F) |
| 2008 | 0.0 C (32.0 F) |
| 2009 | 0.6 C (33.1 F) |
| 2010 | -0.6 C (30.9 F) |
| 2011 | -4.4 C (24.1 F) |
| 2012 | 0.6 C (33.1 F) |
| 2013 | -2.8 C (27.0 F) |
| 2014 | 2.2 C (36.0 F) |
| 2015 | 0.0 C (32.0 F) |
| 2016 | 1.1 C (34.0 F) |
| 2017 | 2.2 C (36.0 F) |
| 2018 | 0.0 C (32.0 F) |
| 2019 | 1.1 C (34.0 F) |
| 2020 | 1.1 C (34.0 F) |
| 2021 | 2.8 C (37.0 F) |
| 2022 | 2.2 C (36.0 F) |
| 2023 | 2.8 C (37.0 F) |
| 2024 | 2.8 C (37.0 F) |
| 2025 | 2.8 C (37.0 F) |
| 2026 | 4.4 C (39.9 F) |
Wettest day (Rx1day)
| Year | Wettest day (Rx1day) |
|---|---|
| 1942 | 10.4 mm (0.4 in) |
| 1943 | 58.7 mm (2.3 in) |
| 1946 | 8.4 mm (0.33 in) |
| 1947 | 21.3 mm (0.8 in) |
| 1948 | 48.0 mm (1.9 in) |
| 1949 | 24.6 mm (1.0 in) |
| 1950 | 16.3 mm (0.6 in) |
| 1951 | 27.9 mm (1.1 in) |
| 1952 | 38.4 mm (1.5 in) |
| 1953 | 14.2 mm (0.6 in) |
| 1954 | 23.9 mm (0.9 in) |
| 1955 | 46.2 mm (1.8 in) |
| 1956 | 3.8 mm (0.15 in) |
| 1957 | 25.9 mm (1.0 in) |
| 1958 | 39.1 mm (1.5 in) |
| 1959 | 30.5 mm (1.2 in) |
| 1960 | 16.0 mm (0.6 in) |
| 1961 | 12.7 mm (0.5 in) |
| 1962 | 17.8 mm (0.7 in) |
| 1963 | 28.7 mm (1.1 in) |
| 1964 | 28.4 mm (1.1 in) |
| 1965 | 42.9 mm (1.7 in) |
| 1966 | 32.0 mm (1.3 in) |
| 1967 | 21.6 mm (0.9 in) |
| 1968 | 20.6 mm (0.8 in) |
| 1969 | 27.4 mm (1.1 in) |
| 1970 | 24.6 mm (1.0 in) |
| 1971 | 6.9 mm (0.27 in) |
| 1972 | 16.0 mm (0.6 in) |
| 1973 | 14.7 mm (0.6 in) |
| 1974 | 45.2 mm (1.8 in) |
| 1975 | 20.6 mm (0.8 in) |
| 1976 | 53.1 mm (2.1 in) |
| 1977 | 69.3 mm (2.7 in) |
| 1978 | 38.1 mm (1.5 in) |
| 1979 | 35.1 mm (1.4 in) |
| 1980 | 43.9 mm (1.7 in) |
| 1981 | 20.8 mm (0.8 in) |
| 1982 | 28.4 mm (1.1 in) |
| 1983 | 62.5 mm (2.5 in) |
| 1984 | 29.2 mm (1.1 in) |
| 1985 | 35.6 mm (1.4 in) |
| 1986 | 27.9 mm (1.1 in) |
| 1987 | 21.6 mm (0.9 in) |
| 1988 | 33.0 mm (1.3 in) |
| 1989 | 17.0 mm (0.7 in) |
| 1990 | 24.1 mm (0.9 in) |
| 1991 | 61.5 mm (2.4 in) |
| 1992 | 47.0 mm (1.9 in) |
| 1993 | 44.5 mm (1.8 in) |
| 1994 | 15.7 mm (0.6 in) |
| 1995 | 51.3 mm (2.0 in) |
| 1996 | 12.7 mm (0.5 in) |
| 1997 | 34.5 mm (1.4 in) |
| 1998 | 26.4 mm (1.0 in) |
| 1999 | 21.6 mm (0.9 in) |
| 2000 | 26.7 mm (1.1 in) |
| 2001 | 28.7 mm (1.1 in) |
| 2002 | 8.9 mm (0.35 in) |
| 2003 | 16.8 mm (0.7 in) |
| 2004 | 53.3 mm (2.1 in) |
| 2005 | 38.4 mm (1.5 in) |
| 2006 | 7.1 mm (0.28 in) |
| 2007 | 19.8 mm (0.8 in) |
| 2008 | 42.9 mm (1.7 in) |
| 2009 | 33.8 mm (1.3 in) |
| 2010 | 53.3 mm (2.1 in) |
| 2011 | 39.9 mm (1.6 in) |
| 2012 | 19.0 mm (0.7 in) |
| 2013 | 50.8 mm (2.0 in) |
| 2014 | 17.0 mm (0.7 in) |
| 2015 | 7.9 mm (0.31 in) |
| 2016 | 32.8 mm (1.3 in) |
| 2017 | 37.3 mm (1.5 in) |
| 2018 | 16.0 mm (0.6 in) |
| 2019 | 68.8 mm (2.7 in) |
| 2020 | 35.8 mm (1.4 in) |
| 2021 | 13.5 mm (0.5 in) |
| 2022 | 45.0 mm (1.8 in) |
| 2023 | 52.6 mm (2.1 in) |
| 2024 | 25.4 mm (1.0 in) |
| 2025 | 48.0 mm (1.9 in) |
| 2026 | 41.4 mm (1.6 in) |
Wettest five days (Rx5day)
| Year | Wettest five days (Rx5day) |
|---|---|
| 1942 | 10.4 mm (0.4 in) |
| 1943 | 68.6 mm (2.7 in) |
| 1946 | 17.8 mm (0.7 in) |
| 1947 | 27.1 mm (1.1 in) |
| 1948 | 52.3 mm (2.1 in) |
| 1949 | 51.6 mm (2.0 in) |
| 1950 | 16.3 mm (0.6 in) |
| 1951 | 32.9 mm (1.3 in) |
| 1952 | 47.0 mm (1.9 in) |
| 1953 | 16.3 mm (0.6 in) |
| 1954 | 32.1 mm (1.3 in) |
| 1955 | 47.7 mm (1.9 in) |
| 1956 | 4.1 mm (0.16 in) |
| 1957 | 30.7 mm (1.2 in) |
| 1958 | 45.7 mm (1.8 in) |
| 1959 | 32.3 mm (1.3 in) |
| 1960 | 26.9 mm (1.1 in) |
| 1961 | 18.0 mm (0.7 in) |
| 1962 | 29.0 mm (1.1 in) |
| 1963 | 50.3 mm (2.0 in) |
| 1964 | 28.8 mm (1.1 in) |
| 1965 | 60.7 mm (2.4 in) |
| 1966 | 32.0 mm (1.3 in) |
| 1967 | 30.6 mm (1.2 in) |
| 1968 | 20.6 mm (0.8 in) |
| 1969 | 28.7 mm (1.1 in) |
| 1970 | 36.3 mm (1.4 in) |
| 1971 | 9.4 mm (0.37 in) |
| 1972 | 34.3 mm (1.4 in) |
| 1973 | 24.4 mm (1.0 in) |
| 1974 | 85.6 mm (3.4 in) |
| 1975 | 33.8 mm (1.3 in) |
| 1976 | 79.2 mm (3.1 in) |
| 1977 | 91.6 mm (3.6 in) |
| 1978 | 67.3 mm (2.6 in) |
| 1979 | 65.2 mm (2.6 in) |
| 1980 | 112.0 mm (4.4 in) |
| 1981 | 42.7 mm (1.7 in) |
| 1982 | 60.5 mm (2.4 in) |
| 1983 | 97.8 mm (3.9 in) |
| 1984 | 38.4 mm (1.5 in) |
| 1985 | 56.1 mm (2.2 in) |
| 1986 | 33.0 mm (1.3 in) |
| 1987 | 29.2 mm (1.1 in) |
| 1988 | 33.5 mm (1.3 in) |
| 1989 | 20.0 mm (0.8 in) |
| 1990 | 24.4 mm (1.0 in) |
| 1991 | 108.2 mm (4.3 in) |
| 1992 | 43.5 mm (1.7 in) |
| 1993 | 100.9 mm (4.0 in) |
| 1994 | 34.7 mm (1.4 in) |
| 1995 | 59.0 mm (2.3 in) |
| 1996 | 16.5 mm (0.6 in) |
| 1997 | 26.0 mm (1.0 in) |
| 1998 | 46.0 mm (1.8 in) |
| 1999 | 24.4 mm (1.0 in) |
| 2000 | 26.7 mm (1.1 in) |
| 2001 | 62.1 mm (2.4 in) |
| 2002 | 18.6 mm (0.7 in) |
| 2003 | 22.9 mm (0.9 in) |
| 2004 | 53.6 mm (2.1 in) |
| 2005 | 54.1 mm (2.1 in) |
| 2006 | 9.6 mm (0.38 in) |
| 2007 | 22.3 mm (0.9 in) |
| 2008 | 66.3 mm (2.6 in) |
| 2009 | 34.1 mm (1.3 in) |
| 2010 | 124.2 mm (4.9 in) |
| 2011 | 47.8 mm (1.9 in) |
| 2012 | 25.9 mm (1.0 in) |
| 2013 | 50.8 mm (2.0 in) |
| 2014 | 17.0 mm (0.7 in) |
| 2015 | 17.0 mm (0.7 in) |
| 2016 | 50.1 mm (2.0 in) |
| 2017 | 42.2 mm (1.7 in) |
| 2018 | 27.0 mm (1.1 in) |
| 2019 | 75.2 mm (3.0 in) |
| 2020 | 66.3 mm (2.6 in) |
| 2021 | 19.9 mm (0.8 in) |
| 2022 | 45.0 mm (1.8 in) |
| 2023 | 55.9 mm (2.2 in) |
| 2024 | 30.0 mm (1.2 in) |
| 2025 | 48.3 mm (1.9 in) |
| 2026 | 43.4 mm (1.7 in) |
Longest dry spell (CDD)
| Year | Longest dry spell (CDD) |
|---|---|
| 1942 | 177 days |
| 1943 | 21 days |
| 1946 | 72 days |
| 1947 | 93 days |
| 1948 | 118 days |
| 1949 | 152 days |
| 1950 | 47 days |
| 1951 | 71 days |
| 1952 | 193 days |
| 1953 | 120 days |
| 1954 | 91 days |
| 1955 | 121 days |
| 1956 | 203 days |
| 1957 | 214 days |
| 1958 | 90 days |
| 1959 | 128 days |
| 1960 | 120 days |
| 1961 | 97 days |
| 1962 | 159 days |
| 1963 | 102 days |
| 1964 | 96 days |
| 1965 | 98 days |
| 1966 | 126 days |
| 1967 | 79 days |
| 1968 | 78 days |
| 1969 | 80 days |
| 1970 | 93 days |
| 1971 | 64 days |
| 1972 | 110 days |
| 1973 | 126 days |
| 1974 | 73 days |
| 1975 | 107 days |
| 1976 | 75 days |
| 1977 | 72 days |
| 1978 | 140 days |
| 1979 | 84 days |
| 1980 | 76 days |
| 1981 | 80 days |
| 1982 | 113 days |
| 1983 | 97 days |
| 1984 | 134 days |
| 1985 | 137 days |
| 1986 | 99 days |
| 1987 | 86 days |
| 1988 | 118 days |
| 1989 | 156 days |
| 1990 | 80 days |
| 1991 | 101 days |
| 1992 | 58 days |
| 1993 | 102 days |
| 1994 | 92 days |
| 1995 | 115 days |
| 1996 | 136 days |
| 1997 | 44 days |
| 1998 | 91 days |
| 1999 | 78 days |
| 2000 | 154 days |
| 2001 | 140 days |
| 2002 | 135 days |
| 2003 | 105 days |
| 2004 | 159 days |
| 2005 | 122 days |
| 2006 | 157 days |
| 2007 | 155 days |
| 2008 | 99 days |
| 2009 | 284 days |
| 2010 | 84 days |
| 2011 | 94 days |
| 2012 | 106 days |
| 2013 | 135 days |
| 2014 | 91 days |
| 2015 | 73 days |
| 2016 | 173 days |
| 2017 | 115 days |
| 2018 | 178 days |
| 2019 | 132 days |
| 2020 | 209 days |
| 2021 | 94 days |
| 2022 | 60 days |
| 2023 | 141 days |
| 2024 | 269 days |
| 2025 | 162 days |
| 2026 | 199 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.
Rainfall Return Levels
77 years, 1947 to 2025A day with at least 28.9 mm (1.1 in) of rain is expected about once in 2 years. A day with at least 74.9 mm (2.9 in) of rain is expected about once in 100 years.
| Expected about once in | A day with at least | Note |
|---|---|---|
| 2 years | 28.9 mm (1.1 in) | |
| 5 years | 42.7 mm (1.7 in) | |
| 10 years | 51.3 mm (2.0 in) | |
| 25 years | 61.4 mm (2.4 in) | |
| 50 years | 68.4 mm (2.7 in) | |
| 100 years | 74.9 mm (2.9 in) | Longer than the 77 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, 77 years of values from 1947 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: 69.3 mm (2.7 in) in 1977; 68.8 mm (2.7 in) in 2019; 62.5 mm (2.5 in) in 1983.
Station Changes
2 suspected2 changes were suspected in the annual mean temperature of Borrego Desert Park, at 1987 and 1992. Each is measured against neighbouring stations.
- Relative to 5 neighbouring stations, the station's annual mean temperature from 1987 ran 0.6 C (1.0 F) higher than in the years before (likely change).
- Relative to 5 neighbouring stations, the station's annual mean temperature from 1992 ran 0.7 C (1.3 F) lower than in the years before (possible change).
| Year | Shift (C) | Shift (F) | Strength | Neighbours |
|---|---|---|---|---|
| 1987 | +0.6 | +1.0 | likely | 5 |
| 1992 | -0.7 | -1.3 | possible | 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
2010 to 2025 against 1961 to 1990Over 2010 to 2025, Borrego Desert Park had a mean temperature of 23.7 C (74.6 F) and 123.4 mm (4.9 in) of rain a year. The 3 stations whose 1961 to 1990 climate was closest to that are Gold Rock Rch (United States, 149 km away), Yuma WSO AP (United States, 181 km away) and Delta (Mexico, 152 km away).
| Twin station | Country | Distance away | Mean temperature, 1961-1990 | Rain a year, 1961-1990 | Climate difference |
|---|---|---|---|---|---|
| Gold Rock Rch | United States | 149 km (93 mi) | 23.4 C (74.0 F) | 96.3 mm (3.8 in) | 0.56 |
| Yuma WSO AP | United States | 181 km (112 mi) | 23.4 C (74.1 F) | 80.7 mm (3.2 in) | 0.62 |
| Delta | Mexico | 152 km (94 mi) | 23.1 C (73.6 F) | 49.7 mm (2.0 in) | 0.73 |
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 2026-10-14 (14 October 2026). Records are computed by this site and are not official.
Data as of . Last revised (2026-10-14).