Blythe ASOS Weather Records (USW00023158)
Record envelope, standing records and threshold days for Blythe ASOS (USW00023158), California, United States, with 79 years of record.
Key Facts for Blythe ASOS
- Blythe ASOS (USW00023158) is a weather station in California, United States at 33.62 latitude and -114.71 longitude, 120 m (395 ft) above sea level.
- The station reports from 1948 to 2026, 79 years of record.
- 1,464 records set at Blythe ASOS still stand.
- Records are tracked for tmax, tmin, prcp, snow, snwd: an element needs 30 years of data to be eligible.
- Blythe ASOS set a daily record low maximum temperature of 24.4 C (75.9 F) on 13 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, 33.62 latitude, -114.71 longitude.
- Elevation: 120 m (395 ft).
- Period of record: 1948 to 2026, 79 years.
- Eligible elements: tmax, tmin, prcp, snow, snwd.
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 | 31.7 C (89.1 F) | -6.7 C (19.9 F) | 27.2 C (81.0 F) | 0.6 C (33.1 F) |
| Feb | 35.0 C (95.0 F) | -5.6 C (21.9 F) | 35.0 C (95.0 F) | 2.8 C (37.0 F) |
| Mar | 40.0 C (104.0 F) | -1.1 C (30.0 F) | 40.0 C (104.0 F) | 10.6 C (51.1 F) |
| Apr | 41.7 C (107.1 F) | 3.3 C (37.9 F) | 36.7 C (98.1 F) | 9.4 C (48.9 F) |
| May | 46.1 C (115.0 F) | 6.1 C (43.0 F) | 42.8 C (109.0 F) | 11.7 C (53.1 F) |
| Jun | 51.1 C (124.0 F) | 7.8 C (46.0 F) | 45.6 C (114.1 F) | 17.8 C (64.0 F) |
| Jul | 50.6 C (123.1 F) | 16.7 C (62.1 F) | 47.8 C (118.0 F) | 22.8 C (73.0 F) |
| Aug | 49.4 C (120.9 F) | 16.7 C (62.1 F) | 47.8 C (118.0 F) | 25.6 C (78.1 F) |
| Sep | 49.4 C (120.9 F) | 11.7 C (53.1 F) | 45.0 C (113.0 F) | 17.2 C (63.0 F) |
| Oct | 44.4 C (111.9 F) | -2.8 C (27.0 F) | 40.6 C (105.1 F) | 13.9 C (57.0 F) |
| Nov | 35.6 C (96.1 F) | -3.3 C (26.1 F) | n/a | n/a |
| Dec | 30.6 C (87.1 F) | -4.4 C (24.1 F) | n/a | n/a |
Which Years Hold Standing Records
1,464 standing records| Year set | Standing records |
|---|---|
| 1948 | 8 |
| 1949 | 38 |
| 1950 | 33 |
| 1951 | 20 |
| 1952 | 15 |
| 1953 | 11 |
| 1954 | 12 |
| 1955 | 16 |
| 1956 | 18 |
| 1957 | 20 |
| 1958 | 25 |
| 1959 | 20 |
| 1960 | 26 |
| 1961 | 11 |
| 1962 | 45 |
| 1963 | 22 |
| 1964 | 27 |
| 1965 | 26 |
| 1966 | 25 |
| 1967 | 19 |
| 1968 | 22 |
| 1969 | 15 |
| 1970 | 14 |
| 1971 | 64 |
| 1972 | 23 |
| 1973 | 10 |
| 1974 | 9 |
| 1975 | 25 |
| 1976 | 32 |
| 1977 | 13 |
| 1978 | 18 |
| 1979 | 13 |
| 1980 | 31 |
| 1981 | 23 |
| 1982 | 15 |
| 1983 | 18 |
| 1984 | 7 |
| 1985 | 25 |
| 1986 | 19 |
| 1987 | 23 |
| 1988 | 14 |
| 1989 | 18 |
| 1990 | 11 |
| 1991 | 18 |
| 1992 | 13 |
| 1993 | 10 |
| 1994 | 15 |
| 1995 | 23 |
| 1996 | 28 |
| 1997 | 21 |
| 1998 | 19 |
| 1999 | 17 |
| 2000 | 12 |
| 2001 | 11 |
| 2002 | 15 |
| 2003 | 14 |
| 2004 | 12 |
| 2005 | 11 |
| 2006 | 13 |
| 2007 | 15 |
| 2008 | 14 |
| 2009 | 17 |
| 2010 | 17 |
| 2011 | 13 |
| 2012 | 11 |
| 2013 | 13 |
| 2014 | 8 |
| 2015 | 21 |
| 2016 | 12 |
| 2017 | 22 |
| 2018 | 13 |
| 2019 | 12 |
| 2020 | 34 |
| 2021 | 16 |
| 2022 | 14 |
| 2023 | 6 |
| 2024 | 28 |
| 2025 | 9 |
| 2026 | 18 |
All-Time Record Progression
2 new records| Date | Kind | Detail |
|---|---|---|
| 1994-06-28 | Record high maximum temperature | Record high maximum temperature 50.6 C (123.1 F) |
| 2016-06-20 | Record high maximum temperature | Record high maximum temperature 51.1 C (124.0 F) |
Wettest Day of Each Month
Aug: 76.2 mm (3.0 in)| Month | Record daily precipitation (mm) | Date |
|---|---|---|
| Jan | 41.7 mm (1.6 in) | 25 January 1995 |
| Feb | 42.2 mm (1.7 in) | 8 February 1993 |
| Mar | 38.6 mm (1.5 in) | 6 March 2001 |
| Apr | 67.8 mm (2.7 in) | 3 April 1965 |
| May | 12.7 mm (0.5 in) | 9 May 2017 |
| Jun | 23.1 mm (0.9 in) | 2 June 1952 |
| Jul | 35.6 mm (1.4 in) | 16 July 1987 |
| Aug | 76.2 mm (3.0 in) | 26 August 1951 |
| Sep | 48.3 mm (1.9 in) | 25 September 1997 |
| Oct | 40.9 mm (1.6 in) | 6 October 1972 |
| Nov | 26.4 mm (1.0 in) | 30 November 2007 |
| Dec | 36.1 mm (1.4 in) | 11 December 1984 |
Period of Record Coverage
1948 to 2026| Year | Days with data | Share of year | Complete |
|---|---|---|---|
| 1948 | 184 | 50% | No |
| 1949 | 364 | 100% | Yes |
| 1950 | 365 | 100% | Yes |
| 1951 | 360 | 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 | 364 | 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 | 304 | 83% | No |
| 1982 | 365 | 100% | Yes |
| 1983 | 365 | 100% | Yes |
| 1984 | 365 | 100% | Yes |
| 1985 | 365 | 100% | Yes |
| 1986 | 365 | 100% | Yes |
| 1987 | 364 | 100% | Yes |
| 1988 | 366 | 100% | Yes |
| 1989 | 365 | 100% | Yes |
| 1990 | 334 | 92% | Yes |
| 1991 | 334 | 92% | Yes |
| 1992 | 366 | 100% | Yes |
| 1993 | 365 | 100% | Yes |
| 1994 | 365 | 100% | Yes |
| 1995 | 334 | 92% | Yes |
| 1996 | 366 | 100% | Yes |
| 1997 | 365 | 100% | Yes |
| 1998 | 365 | 100% | Yes |
| 1999 | 365 | 100% | Yes |
| 2000 | 364 | 99% | Yes |
| 2001 | 362 | 99% | 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 | 364 | 100% | Yes |
| 2012 | 366 | 100% | Yes |
| 2013 | 363 | 99% | Yes |
| 2014 | 356 | 98% | Yes |
| 2015 | 365 | 100% | Yes |
| 2016 | 366 | 100% | Yes |
| 2017 | 365 | 100% | Yes |
| 2018 | 356 | 98% | Yes |
| 2019 | 365 | 100% | Yes |
| 2020 | 366 | 100% | Yes |
| 2021 | 363 | 99% | Yes |
| 2022 | 364 | 100% | Yes |
| 2023 | 364 | 100% | Yes |
| 2024 | 364 | 99% | Yes |
| 2025 | 355 | 97% | Yes |
| 2026 | 270 | 74% | No |
Latest Records
20| Date | Station | Record | Value | Beat old record by | Old record stood | Significance |
|---|---|---|---|---|---|---|
| 13 October 2026 | Blythe ASOS, US | daily low max (Provisional) | 24.4 C (75.9 F) | 0.6 C (1.1 F) | 17 years | 13 of 100 (Routine) |
| 11 October 2026 | Blythe ASOS, US | monthly rain (Provisional) | 53.1 mm (2.1 in) | 12.2 mm (0.5 in) | 54 years | 49 of 100 (Notable) |
| 10 October 2026 | Blythe ASOS, US | daily rain (Provisional) | 18.0 mm (0.7 in) | 1.2 mm (0.05 in) | 40 years | 20 of 100 (Routine) |
| 9 October 2026 | Blythe ASOS, US | daily high min (Provisional) | 23.9 C (75.0 F) | 0.6 C (1.1 F) | 48 years | 22 of 100 (Routine) |
| 4 October 2026 | Blythe ASOS, US | daily high min (Provisional) | 25.0 C (77.0 F) | 1.1 C (2.0 F) | 63 years | 27 of 100 (Routine) |
| 28 September 2026 | Blythe ASOS, US | daily rain (Provisional) | 9.1 mm (0.36 in) | 7.1 mm (0.28 in) | 73 years | 20 of 100 (Routine) |
| 28 September 2026 | Blythe ASOS, US | daily low max (Provisional) | 28.9 C (84.0 F) | 0.5 C (0.9 F) | 44 years | 21 of 100 (Routine) |
| 11 September 2026 | Blythe ASOS, US | daily high min (Provisional) | 31.1 C (88.0 F) | 1.1 C (2.0 F) | 65 years | 28 of 100 (Routine) |
| 10 September 2026 | Blythe ASOS, US | daily high min (Provisional) | 31.7 C (89.1 F) | 1.7 C (3.1 F) | 65 years | 30 of 100 (Routine) |
| 9 September 2026 | Blythe ASOS, US | daily high min (Provisional) | 32.2 C (90.0 F) | 2.2 C (4.0 F) | 28 years | 20 of 100 (Routine) |
| 30 August 2026 | Blythe ASOS, US | daily high min (Provisional) | 32.2 C (90.0 F) | 0.5 C (0.9 F) | 44 years | 21 of 100 (Routine) |
| 26 August 2026 | Blythe ASOS, US | daily high min (Tie, Provisional) | 31.7 C (89.1 F) | tie | 64 years | 6 of 100 (Routine) |
| 24 August 2026 | Blythe ASOS, US | daily high min (Provisional) | 32.2 C (90.0 F) | 0.5 C (0.9 F) | 56 years | 25 of 100 (Routine) |
| 23 August 2026 | Blythe ASOS, US | daily high min (Provisional) | 32.8 C (91.0 F) | 0.6 C (1.1 F) | 28 years | 17 of 100 (Routine) |
| 22 August 2026 | Blythe ASOS, US | daily high max (Provisional) | 47.2 C (117.0 F) | 0.5 C (0.9 F) | 56 years | 25 of 100 (Routine) |
| 20 August 2026 | Blythe ASOS, US | daily high min (Tie, Provisional) | 32.2 C (90.0 F) | tie | 5 years | 2 of 100 (Routine) |
| 8 August 2026 | Blythe ASOS, US | daily rain | 6.9 mm (0.27 in) | 3.1 mm (0.12 in) | 4 years | 10 of 100 (Routine) |
| 3 August 2026 | Blythe ASOS, US | daily high max (Tie) | 47.8 C (118.0 F) | tie | 31 years | 4 of 100 (Routine) |
| 2 August 2026 | Blythe ASOS, US | daily high max (Tie) | 47.8 C (118.0 F) | tie | 31 years | 4 of 100 (Routine) |
| 2 August 2026 | Blythe ASOS, US | daily high min (Tie) | 32.8 C (91.0 F) | tie | 8 years | 2 of 100 (Routine) |
Climate Trend
73 complete years, 1949 to 2025| Year | Annual mean temperature | Difference from the station mean |
|---|---|---|
| 1949 | 22.4 C | -0.86 C |
| 1950 | 23.6 C | +0.35 C |
| 1951 | 22.7 C | -0.58 C |
| 1952 | 22.9 C | -0.39 C |
| 1953 | 23.1 C | -0.22 C |
| 1954 | 23.8 C | +0.49 C |
| 1955 | 22.6 C | -0.64 C |
| 1956 | 23.0 C | -0.33 C |
| 1957 | 23.2 C | -0.13 C |
| 1958 | 23.9 C | +0.59 C |
| 1959 | 23.7 C | +0.43 C |
| 1960 | 23.6 C | +0.29 C |
| 1961 | 23.3 C | +0.01 C |
| 1962 | 23.8 C | +0.49 C |
| 1963 | 23.0 C | -0.24 C |
| 1964 | 22.4 C | -0.92 C |
| 1965 | 22.8 C | -0.48 C |
| 1966 | 23.3 C | +0.01 C |
| 1967 | 22.9 C | -0.41 C |
| 1968 | 22.9 C | -0.42 C |
| 1969 | 23.4 C | +0.12 C |
| 1970 | 22.4 C | -0.90 C |
| 1971 | 21.3 C | -2.03 C |
| 1972 | 22.9 C | -0.36 C |
| 1973 | 22.9 C | -0.39 C |
| 1974 | 23.3 C | +0.04 C |
| 1975 | 21.9 C | -1.34 C |
| 1976 | 22.2 C | -1.12 C |
| 1977 | 23.1 C | -0.21 C |
| 1978 | 22.9 C | -0.39 C |
| 1979 | 22.4 C | -0.84 C |
| 1980 | 23.8 C | +0.47 C |
| 1982 | 22.5 C | -0.81 C |
| 1983 | 23.2 C | -0.13 C |
| 1984 | 23.2 C | -0.06 C |
| 1985 | 22.9 C | -0.35 C |
| 1986 | 23.5 C | +0.17 C |
| 1987 | 23.3 C | 0.00 C |
| 1988 | 23.0 C | -0.24 C |
| 1989 | 23.3 C | +0.06 C |
| 1992 | 23.3 C | +0.05 C |
| 1993 | 22.9 C | -0.39 C |
| 1994 | 23.2 C | -0.05 C |
| 1996 | 24.0 C | +0.75 C |
| 1997 | 24.1 C | +0.86 C |
| 1998 | 22.6 C | -0.71 C |
| 1999 | 23.5 C | +0.19 C |
| 2000 | 23.9 C | +0.59 C |
| 2001 | 23.6 C | +0.28 C |
| 2002 | 23.2 C | -0.06 C |
| 2003 | 23.9 C | +0.58 C |
| 2004 | 23.2 C | -0.06 C |
| 2005 | 23.2 C | -0.11 C |
| 2006 | 23.3 C | +0.01 C |
| 2007 | 23.4 C | +0.15 C |
| 2008 | 23.5 C | +0.17 C |
| 2009 | 23.6 C | +0.34 C |
| 2010 | 23.1 C | -0.21 C |
| 2011 | 23.0 C | -0.26 C |
| 2012 | 23.8 C | +0.54 C |
| 2013 | 23.3 C | +0.05 C |
| 2014 | 24.3 C | +1.00 C |
| 2015 | 24.1 C | +0.85 C |
| 2016 | 24.4 C | +1.07 C |
| 2017 | 24.4 C | +1.08 C |
| 2018 | 24.1 C | +0.79 C |
| 2019 | 22.9 C | -0.36 C |
| 2020 | 24.1 C | +0.77 C |
| 2021 | 24.2 C | +0.92 C |
| 2022 | 24.0 C | +0.69 C |
| 2023 | 23.3 C | +0.04 C |
| 2024 | 24.4 C | +1.08 C |
| 2025 | 24.2 C | +0.87 C |
The annual mean temperature here has risen by 0.1 C (0.1 to 0.2) per decade over 1949 to 2025. In Fahrenheit: 0.2 F (0.1 to 0.3) per decade. The slope is a straight line fitted to 73 complete years; the brackets give its 95 percent interval.
| Measure | Per decade (C) | Per decade (F) | Period | Complete years | Reading |
|---|---|---|---|---|---|
| Annual mean temperature | 0.1 C (0.1 to 0.2) per decade | 0.2 F (0.1 to 0.3) per decade | 1949 to 2025 | 73 | Rise |
| Mean daily maximum | 0.1 C (0.1 to 0.2) per decade | 0.3 F (0.1 to 0.4) per decade | 1949 to 2025 | 73 | Rise |
| Mean daily minimum | 0.1 C (0.1 to 0.2) per decade | 0.2 F (0.1 to 0.3) per decade | 1949 to 2025 | 73 | 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
1948 to 2026| Measure | Record | Year of the record | Median year | Years with a value |
|---|---|---|---|---|
| Hottest day (TXx) | 51.1 C (124.0 F) | 2016 | 47.8 C (118.0 F) | 79 |
| Coldest night (TNn) | -6.7 C (19.9 F) | 1971 | -1.6 C (29.1 F) | 79 |
| Wettest day (Rx1day) | 76.2 mm (3.0 in) | 1951 | 21.6 mm (0.9 in) | 79 |
| Wettest five days (Rx5day) | 113.8 mm (4.5 in) | 1951 | 27.7 mm (1.1 in) | 79 |
| Longest dry spell (CDD) | 276 days | 2024 | 127 days | 79 |
Hottest day (TXx)
| Year | Hottest day (TXx) |
|---|---|
| 1948 | 47.8 C (118.0 F) |
| 1949 | 47.2 C (117.0 F) |
| 1950 | 49.4 C (120.9 F) |
| 1951 | 46.1 C (115.0 F) |
| 1952 | 46.1 C (115.0 F) |
| 1953 | 46.7 C (116.1 F) |
| 1954 | 47.2 C (117.0 F) |
| 1955 | 47.8 C (118.0 F) |
| 1956 | 46.7 C (116.1 F) |
| 1957 | 48.9 C (120.0 F) |
| 1958 | 47.8 C (118.0 F) |
| 1959 | 46.7 C (116.1 F) |
| 1960 | 48.3 C (118.9 F) |
| 1961 | 48.9 C (120.0 F) |
| 1962 | 47.2 C (117.0 F) |
| 1963 | 47.2 C (117.0 F) |
| 1964 | 47.2 C (117.0 F) |
| 1965 | 47.2 C (117.0 F) |
| 1966 | 47.2 C (117.0 F) |
| 1967 | 47.8 C (118.0 F) |
| 1968 | 46.7 C (116.1 F) |
| 1969 | 47.8 C (118.0 F) |
| 1970 | 50.0 C (122.0 F) |
| 1971 | 47.2 C (117.0 F) |
| 1972 | 48.9 C (120.0 F) |
| 1973 | 49.4 C (120.9 F) |
| 1974 | 48.3 C (118.9 F) |
| 1975 | 46.7 C (116.1 F) |
| 1976 | 46.1 C (115.0 F) |
| 1977 | 47.2 C (117.0 F) |
| 1978 | 47.8 C (118.0 F) |
| 1979 | 47.8 C (118.0 F) |
| 1980 | 48.9 C (120.0 F) |
| 1981 | 47.8 C (118.0 F) |
| 1982 | 45.6 C (114.1 F) |
| 1983 | 47.2 C (117.0 F) |
| 1984 | 46.1 C (115.0 F) |
| 1985 | 48.3 C (118.9 F) |
| 1986 | 46.7 C (116.1 F) |
| 1987 | 47.8 C (118.0 F) |
| 1988 | 45.6 C (114.1 F) |
| 1989 | 49.4 C (120.9 F) |
| 1990 | 50.0 C (122.0 F) |
| 1991 | 45.6 C (114.1 F) |
| 1992 | 46.7 C (116.1 F) |
| 1993 | 48.3 C (118.9 F) |
| 1994 | 50.6 C (123.1 F) |
| 1995 | 50.6 C (123.1 F) |
| 1996 | 48.3 C (118.9 F) |
| 1997 | 46.7 C (116.1 F) |
| 1998 | 48.9 C (120.0 F) |
| 1999 | 46.7 C (116.1 F) |
| 2000 | 47.8 C (118.0 F) |
| 2001 | 48.3 C (118.9 F) |
| 2002 | 46.1 C (115.0 F) |
| 2003 | 47.8 C (118.0 F) |
| 2004 | 46.1 C (115.0 F) |
| 2005 | 49.4 C (120.9 F) |
| 2006 | 48.9 C (120.0 F) |
| 2007 | 47.2 C (117.0 F) |
| 2008 | 46.7 C (116.1 F) |
| 2009 | 47.2 C (117.0 F) |
| 2010 | 47.2 C (117.0 F) |
| 2011 | 47.2 C (117.0 F) |
| 2012 | 47.2 C (117.0 F) |
| 2013 | 48.9 C (120.0 F) |
| 2014 | 46.7 C (116.1 F) |
| 2015 | 48.3 C (118.9 F) |
| 2016 | 51.1 C (124.0 F) |
| 2017 | 50.0 C (122.0 F) |
| 2018 | 48.9 C (120.0 F) |
| 2019 | 47.2 C (117.0 F) |
| 2020 | 49.4 C (120.9 F) |
| 2021 | 49.4 C (120.9 F) |
| 2022 | 46.7 C (116.1 F) |
| 2023 | 48.9 C (120.0 F) |
| 2024 | 50.6 C (123.1 F) |
| 2025 | 48.9 C (120.0 F) |
| 2026 | 47.8 C (118.0 F) |
Coldest night (TNn)
| Year | Coldest night (TNn) |
|---|---|
| 1948 | 0.0 C (32.0 F) |
| 1949 | -3.9 C (25.0 F) |
| 1950 | -5.6 C (21.9 F) |
| 1951 | -0.6 C (30.9 F) |
| 1952 | -2.2 C (28.0 F) |
| 1953 | -1.1 C (30.0 F) |
| 1954 | -1.7 C (28.9 F) |
| 1955 | 0.0 C (32.0 F) |
| 1956 | -2.8 C (27.0 F) |
| 1957 | 0.6 C (33.1 F) |
| 1958 | 1.1 C (34.0 F) |
| 1959 | 0.6 C (33.1 F) |
| 1960 | -2.2 C (28.0 F) |
| 1961 | -1.1 C (30.0 F) |
| 1962 | -3.3 C (26.1 F) |
| 1963 | -2.8 C (27.0 F) |
| 1964 | -3.3 C (26.1 F) |
| 1965 | -1.7 C (28.9 F) |
| 1966 | -1.1 C (30.0 F) |
| 1967 | -1.7 C (28.9 F) |
| 1968 | -4.4 C (24.1 F) |
| 1969 | -1.7 C (28.9 F) |
| 1970 | -3.9 C (25.0 F) |
| 1971 | -6.7 C (19.9 F) |
| 1972 | -5.6 C (21.9 F) |
| 1973 | -2.2 C (28.0 F) |
| 1974 | -6.1 C (21.0 F) |
| 1975 | -1.7 C (28.9 F) |
| 1976 | -4.4 C (24.1 F) |
| 1977 | -1.1 C (30.0 F) |
| 1978 | -3.3 C (26.1 F) |
| 1979 | -2.2 C (28.0 F) |
| 1980 | 1.7 C (35.1 F) |
| 1981 | 1.1 C (34.0 F) |
| 1982 | -1.1 C (30.0 F) |
| 1983 | -1.1 C (30.0 F) |
| 1984 | 1.1 C (34.0 F) |
| 1985 | -1.1 C (30.0 F) |
| 1986 | 0.0 C (32.0 F) |
| 1987 | -3.9 C (25.0 F) |
| 1988 | -3.3 C (26.1 F) |
| 1989 | -1.1 C (30.0 F) |
| 1990 | -5.6 C (21.9 F) |
| 1991 | -1.1 C (30.0 F) |
| 1992 | -1.1 C (30.0 F) |
| 1993 | 0.0 C (32.0 F) |
| 1994 | -2.8 C (27.0 F) |
| 1995 | 0.6 C (33.1 F) |
| 1996 | -1.7 C (28.9 F) |
| 1997 | 0.6 C (33.1 F) |
| 1998 | 0.6 C (33.1 F) |
| 1999 | 1.7 C (35.1 F) |
| 2000 | 0.0 C (32.0 F) |
| 2001 | -1.7 C (28.9 F) |
| 2002 | -2.2 C (28.0 F) |
| 2003 | -2.2 C (28.0 F) |
| 2004 | 0.0 C (32.0 F) |
| 2005 | -3.3 C (26.1 F) |
| 2006 | -1.7 C (28.9 F) |
| 2007 | -3.9 C (25.0 F) |
| 2008 | -1.1 C (30.0 F) |
| 2009 | -0.6 C (30.9 F) |
| 2010 | -3.3 C (26.1 F) |
| 2011 | -4.4 C (24.1 F) |
| 2012 | 0.6 C (33.1 F) |
| 2013 | -3.9 C (25.0 F) |
| 2014 | -1.6 C (29.1 F) |
| 2015 | -3.2 C (26.2 F) |
| 2016 | 0.6 C (33.1 F) |
| 2017 | -0.5 C (31.1 F) |
| 2018 | -2.1 C (28.2 F) |
| 2019 | -2.1 C (28.2 F) |
| 2020 | 0.6 C (33.1 F) |
| 2021 | -1.0 C (30.2 F) |
| 2022 | -1.0 C (30.2 F) |
| 2023 | 0.0 C (32.0 F) |
| 2024 | -1.0 C (30.2 F) |
| 2025 | 0.0 C (32.0 F) |
| 2026 | 0.6 C (33.1 F) |
Wettest day (Rx1day)
| Year | Wettest day (Rx1day) |
|---|---|
| 1948 | 21.8 mm (0.9 in) |
| 1949 | 32.8 mm (1.3 in) |
| 1950 | 5.1 mm (0.20 in) |
| 1951 | 76.2 mm (3.0 in) |
| 1952 | 23.1 mm (0.9 in) |
| 1953 | 6.6 mm (0.26 in) |
| 1954 | 13.2 mm (0.5 in) |
| 1955 | 22.9 mm (0.9 in) |
| 1956 | 21.6 mm (0.9 in) |
| 1957 | 19.1 mm (0.8 in) |
| 1958 | 18.8 mm (0.7 in) |
| 1959 | 26.9 mm (1.1 in) |
| 1960 | 26.2 mm (1.0 in) |
| 1961 | 13.5 mm (0.5 in) |
| 1962 | 19.1 mm (0.8 in) |
| 1963 | 26.9 mm (1.1 in) |
| 1964 | 7.6 mm (0.30 in) |
| 1965 | 67.8 mm (2.7 in) |
| 1966 | 15.2 mm (0.6 in) |
| 1967 | 20.8 mm (0.8 in) |
| 1968 | 8.1 mm (0.32 in) |
| 1969 | 24.1 mm (0.9 in) |
| 1970 | 20.6 mm (0.8 in) |
| 1971 | 24.6 mm (1.0 in) |
| 1972 | 40.9 mm (1.6 in) |
| 1973 | 15.2 mm (0.6 in) |
| 1974 | 22.6 mm (0.9 in) |
| 1975 | 19.3 mm (0.8 in) |
| 1976 | 26.2 mm (1.0 in) |
| 1977 | 19.6 mm (0.8 in) |
| 1978 | 25.1 mm (1.0 in) |
| 1979 | 40.6 mm (1.6 in) |
| 1980 | 18.3 mm (0.7 in) |
| 1981 | 45.0 mm (1.8 in) |
| 1982 | 31.8 mm (1.3 in) |
| 1983 | 37.3 mm (1.5 in) |
| 1984 | 36.1 mm (1.4 in) |
| 1985 | 24.1 mm (0.9 in) |
| 1986 | 16.8 mm (0.7 in) |
| 1987 | 35.6 mm (1.4 in) |
| 1988 | 14.7 mm (0.6 in) |
| 1989 | 13.2 mm (0.5 in) |
| 1990 | 32.0 mm (1.3 in) |
| 1991 | 38.6 mm (1.5 in) |
| 1992 | 32.5 mm (1.3 in) |
| 1993 | 42.2 mm (1.7 in) |
| 1994 | 23.6 mm (0.9 in) |
| 1995 | 41.7 mm (1.6 in) |
| 1996 | 19.3 mm (0.8 in) |
| 1997 | 48.3 mm (1.9 in) |
| 1998 | 34.5 mm (1.4 in) |
| 1999 | 20.3 mm (0.8 in) |
| 2000 | 16.3 mm (0.6 in) |
| 2001 | 38.6 mm (1.5 in) |
| 2002 | 10.9 mm (0.4 in) |
| 2003 | 10.4 mm (0.4 in) |
| 2004 | 18.0 mm (0.7 in) |
| 2005 | 31.2 mm (1.2 in) |
| 2006 | 37.1 mm (1.5 in) |
| 2007 | 26.4 mm (1.0 in) |
| 2008 | 16.5 mm (0.6 in) |
| 2009 | 21.3 mm (0.8 in) |
| 2010 | 37.1 mm (1.5 in) |
| 2011 | 33.0 mm (1.3 in) |
| 2012 | 19.1 mm (0.8 in) |
| 2013 | 13.2 mm (0.5 in) |
| 2014 | 9.9 mm (0.39 in) |
| 2015 | 18.8 mm (0.7 in) |
| 2016 | 19.1 mm (0.8 in) |
| 2017 | 20.3 mm (0.8 in) |
| 2018 | 20.1 mm (0.8 in) |
| 2019 | 17.8 mm (0.7 in) |
| 2020 | 20.8 mm (0.8 in) |
| 2021 | 16.3 mm (0.6 in) |
| 2022 | 19.6 mm (0.8 in) |
| 2023 | 14.7 mm (0.6 in) |
| 2024 | 22.9 mm (0.9 in) |
| 2025 | 22.4 mm (0.9 in) |
| 2026 | 53.1 mm (2.1 in) |
Wettest five days (Rx5day)
| Year | Wettest five days (Rx5day) |
|---|---|
| 1948 | 33.8 mm (1.3 in) |
| 1949 | 39.6 mm (1.6 in) |
| 1950 | 5.6 mm (0.22 in) |
| 1951 | 113.8 mm (4.5 in) |
| 1952 | 36.1 mm (1.4 in) |
| 1953 | 6.6 mm (0.26 in) |
| 1954 | 19.3 mm (0.8 in) |
| 1955 | 22.9 mm (0.9 in) |
| 1956 | 26.2 mm (1.0 in) |
| 1957 | 34.8 mm (1.4 in) |
| 1958 | 19.3 mm (0.8 in) |
| 1959 | 28.5 mm (1.1 in) |
| 1960 | 28.5 mm (1.1 in) |
| 1961 | 18.6 mm (0.7 in) |
| 1962 | 19.6 mm (0.8 in) |
| 1963 | 29.7 mm (1.2 in) |
| 1964 | 9.4 mm (0.37 in) |
| 1965 | 74.5 mm (2.9 in) |
| 1966 | 27.7 mm (1.1 in) |
| 1967 | 24.3 mm (1.0 in) |
| 1968 | 9.6 mm (0.38 in) |
| 1969 | 26.6 mm (1.0 in) |
| 1970 | 30.8 mm (1.2 in) |
| 1971 | 24.6 mm (1.0 in) |
| 1972 | 40.9 mm (1.6 in) |
| 1973 | 18.6 mm (0.7 in) |
| 1974 | 22.6 mm (0.9 in) |
| 1975 | 19.3 mm (0.8 in) |
| 1976 | 41.7 mm (1.6 in) |
| 1977 | 23.7 mm (0.9 in) |
| 1978 | 35.9 mm (1.4 in) |
| 1979 | 50.8 mm (2.0 in) |
| 1980 | 32.3 mm (1.3 in) |
| 1981 | 45.0 mm (1.8 in) |
| 1982 | 31.8 mm (1.3 in) |
| 1983 | 43.5 mm (1.7 in) |
| 1984 | 50.4 mm (2.0 in) |
| 1985 | 39.1 mm (1.5 in) |
| 1986 | 17.8 mm (0.7 in) |
| 1987 | 35.6 mm (1.4 in) |
| 1988 | 15.5 mm (0.6 in) |
| 1989 | 26.2 mm (1.0 in) |
| 1990 | 35.8 mm (1.4 in) |
| 1991 | 38.6 mm (1.5 in) |
| 1992 | 39.2 mm (1.5 in) |
| 1993 | 42.5 mm (1.7 in) |
| 1994 | 29.7 mm (1.2 in) |
| 1995 | 42.2 mm (1.7 in) |
| 1996 | 21.6 mm (0.9 in) |
| 1997 | 51.6 mm (2.0 in) |
| 1998 | 34.5 mm (1.4 in) |
| 1999 | 27.0 mm (1.1 in) |
| 2000 | 17.6 mm (0.7 in) |
| 2001 | 38.9 mm (1.5 in) |
| 2002 | 17.5 mm (0.7 in) |
| 2003 | 17.0 mm (0.7 in) |
| 2004 | 20.5 mm (0.8 in) |
| 2005 | 32.7 mm (1.3 in) |
| 2006 | 37.1 mm (1.5 in) |
| 2007 | 26.4 mm (1.0 in) |
| 2008 | 16.5 mm (0.6 in) |
| 2009 | 21.3 mm (0.8 in) |
| 2010 | 53.9 mm (2.1 in) |
| 2011 | 41.7 mm (1.6 in) |
| 2012 | 37.5 mm (1.5 in) |
| 2013 | 19.6 mm (0.8 in) |
| 2014 | 17.0 mm (0.7 in) |
| 2015 | 25.2 mm (1.0 in) |
| 2016 | 43.8 mm (1.7 in) |
| 2017 | 20.3 mm (0.8 in) |
| 2018 | 20.1 mm (0.8 in) |
| 2019 | 27.5 mm (1.1 in) |
| 2020 | 37.6 mm (1.5 in) |
| 2021 | 18.8 mm (0.7 in) |
| 2022 | 28.5 mm (1.1 in) |
| 2023 | 19.5 mm (0.8 in) |
| 2024 | 24.7 mm (1.0 in) |
| 2025 | 24.2 mm (1.0 in) |
| 2026 | 71.1 mm (2.8 in) |
Longest dry spell (CDD)
| Year | Longest dry spell (CDD) |
|---|---|
| 1948 | 59 days |
| 1949 | 193 days |
| 1950 | 177 days |
| 1951 | 64 days |
| 1952 | 51 days |
| 1953 | 133 days |
| 1954 | 111 days |
| 1955 | 198 days |
| 1956 | 159 days |
| 1957 | 81 days |
| 1958 | 127 days |
| 1959 | 158 days |
| 1960 | 119 days |
| 1961 | 157 days |
| 1962 | 150 days |
| 1963 | 142 days |
| 1964 | 114 days |
| 1965 | 125 days |
| 1966 | 124 days |
| 1967 | 129 days |
| 1968 | 84 days |
| 1969 | 172 days |
| 1970 | 154 days |
| 1971 | 212 days |
| 1972 | 158 days |
| 1973 | 128 days |
| 1974 | 135 days |
| 1975 | 115 days |
| 1976 | 99 days |
| 1977 | 79 days |
| 1978 | 83 days |
| 1979 | 66 days |
| 1980 | 113 days |
| 1981 | 82 days |
| 1982 | 82 days |
| 1983 | 138 days |
| 1984 | 197 days |
| 1985 | 137 days |
| 1986 | 132 days |
| 1987 | 115 days |
| 1988 | 121 days |
| 1989 | 146 days |
| 1990 | 100 days |
| 1991 | 136 days |
| 1992 | 123 days |
| 1993 | 193 days |
| 1994 | 76 days |
| 1995 | 120 days |
| 1996 | 117 days |
| 1997 | 109 days |
| 1998 | 117 days |
| 1999 | 99 days |
| 2000 | 147 days |
| 2001 | 155 days |
| 2002 | 170 days |
| 2003 | 93 days |
| 2004 | 158 days |
| 2005 | 154 days |
| 2006 | 108 days |
| 2007 | 182 days |
| 2008 | 116 days |
| 2009 | 157 days |
| 2010 | 226 days |
| 2011 | 105 days |
| 2012 | 77 days |
| 2013 | 165 days |
| 2014 | 147 days |
| 2015 | 64 days |
| 2016 | 93 days |
| 2017 | 113 days |
| 2018 | 189 days |
| 2019 | 216 days |
| 2020 | 264 days |
| 2021 | 148 days |
| 2022 | 96 days |
| 2023 | 110 days |
| 2024 | 276 days |
| 2025 | 105 days |
| 2026 | 196 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
34 years with a frostAcross 34 years with a frost, the median last spring frost at Blythe ASOS falls on 2 February and the median first autumn frost on 14 December, which leaves a median of 310 days between them.
Fitted over all years, the growing season changes by +1.7 days per decade at this station.
| Measure | Median, all years | Earliest period | Recent period (1953 to 2022) | Recent against earliest | Fitted trend |
|---|---|---|---|---|---|
| Last spring frost | 2 February | n/a | 2 February | n/a | -1.1 days per decade |
| First autumn frost | 14 December | n/a | 14 December | n/a | +0.6 days per decade |
| Growing days | 310 days | n/a | 312 days | n/a | +1.7 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
76 years, 1949 to 2025A day with at least 22.0 mm (0.9 in) of rain is expected about once in 2 years. A day with at least 66.7 mm (2.6 in) of rain is expected about once in 100 years.
| Expected about once in | A day with at least | Note |
|---|---|---|
| 2 years | 22.0 mm (0.9 in) | |
| 5 years | 32.4 mm (1.3 in) | |
| 10 years | 39.8 mm (1.6 in) | |
| 25 years | 50.0 mm (2.0 in) | |
| 50 years | 58.1 mm (2.3 in) | |
| 100 years | 66.7 mm (2.6 in) | Longer than the 76 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, 76 years of values from 1949 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: 76.2 mm (3.0 in) in 1951; 67.8 mm (2.7 in) in 1965; 48.3 mm (1.9 in) in 1997.
Station Changes
3 suspected3 changes were suspected in the annual mean temperature of Blythe ASOS, at 1979, 1988 and 2001. Each is measured against neighbouring stations.
- Relative to 5 neighbouring stations, the station's annual mean temperature from 1979 ran 0.3 C (0.6 F) higher than in the years before (likely change).
- Relative to 5 neighbouring stations, the station's annual mean temperature from 1988 ran 0.5 C (0.9 F) lower than in the years before (likely change).
- Relative to 5 neighbouring stations, the station's annual mean temperature from 2001 ran 0.2 C (0.4 F) lower than in the years before (possible change).
| Year | Shift (C) | Shift (F) | Strength | Neighbours |
|---|---|---|---|---|
| 1979 | +0.3 | +0.6 | likely | 5 |
| 1988 | -0.5 | -0.9 | likely | 5 |
| 2001 | -0.2 | -0.4 | 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
2011 to 2025 against 1961 to 1990Over 2011 to 2025, Blythe ASOS had a mean temperature of 23.9 C (75.0 F) and 78.1 mm (3.1 in) of rain a year. The 3 stations whose 1961 to 1990 climate was closest to that are Yuma WSO AP (United States, 106 km away), Phoenix City (United States, 245 km away) and Needles AP (United States, 128 km away).
| Twin station | Country | Distance away | Mean temperature, 1961-1990 | Rain a year, 1961-1990 | Climate difference |
|---|---|---|---|---|---|
| Yuma WSO AP | United States | 106 km (66 mi) | 23.4 C (74.1 F) | 80.7 mm (3.2 in) | 1.02 |
| Phoenix City | United States | 245 km (152 mi) | 23.1 C (73.7 F) | 195.5 mm (7.7 in) | 1.17 |
| Needles AP | United States | 128 km (80 mi) | 22.8 C (73.1 F) | 116.5 mm (4.6 in) | 1.23 |
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 (2026-10-16).