Buttonwillow Weather Records (USC00041244)
Record envelope, standing records and threshold days for Buttonwillow (USC00041244), California, United States, with 87 years of record.
Key Facts for Buttonwillow
- Buttonwillow (USC00041244) is a weather station in California, United States at 35.40 latitude and -119.47 longitude, 69 m (225 ft) above sea level.
- The station reports from 1940 to 2026, 87 years of record.
- 1,464 records set at Buttonwillow still stand.
- Records are tracked for tmax, tmin, prcp, snow, snwd: an element needs 30 years of data to be eligible.
- Buttonwillow tied a daily record high maximum temperature of 41.1 C (106.0 F) on 24 August 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, 35.40 latitude, -119.47 longitude.
- Elevation: 69 m (225 ft).
- Period of record: 1940 to 2026, 87 years.
- Eligible elements: tmax, tmin, prcp, snow, snwd.
Daily Record Envelope and 2026
16 days at or beyond a record| Month | Highest record high | Lowest record low | 2026 highest maximum | 2026 lowest minimum |
|---|---|---|---|---|
| Jan | 26.7 C (80.1 F) | -12.8 C (9.0 F) | 20.6 C (69.1 F) | -1.1 C (30.0 F) |
| Feb | 29.4 C (84.9 F) | -7.2 C (19.0 F) | 28.3 C (82.9 F) | -0.6 C (30.9 F) |
| Mar | 33.9 C (93.0 F) | -3.3 C (26.1 F) | 33.9 C (93.0 F) | 3.3 C (37.9 F) |
| Apr | 37.8 C (100.0 F) | -1.1 C (30.0 F) | 31.7 C (89.1 F) | 5.0 C (41.0 F) |
| May | 43.3 C (109.9 F) | 3.3 C (37.9 F) | 38.3 C (100.9 F) | 9.4 C (48.9 F) |
| Jun | 45.6 C (114.1 F) | 4.4 C (39.9 F) | 40.0 C (104.0 F) | 13.3 C (55.9 F) |
| Jul | 45.6 C (114.1 F) | 3.3 C (37.9 F) | 41.7 C (107.1 F) | 13.9 C (57.0 F) |
| Aug | 45.6 C (114.1 F) | 5.6 C (42.1 F) | 43.9 C (111.0 F) | 12.2 C (54.0 F) |
| Sep | 45.0 C (113.0 F) | 2.8 C (37.0 F) | n/a | n/a |
| Oct | 38.9 C (102.0 F) | -3.9 C (25.0 F) | n/a | n/a |
| Nov | 34.4 C (93.9 F) | -6.1 C (21.0 F) | n/a | n/a |
| Dec | 27.2 C (81.0 F) | -11.1 C (12.0 F) | n/a | n/a |
Which Years Hold Standing Records
1,464 standing records| Year set | Standing records |
|---|---|
| 1940 | 29 |
| 1941 | 30 |
| 1942 | 31 |
| 1943 | 16 |
| 1944 | 38 |
| 1945 | 28 |
| 1946 | 28 |
| 1947 | 24 |
| 1948 | 25 |
| 1949 | 37 |
| 1950 | 40 |
| 1951 | 7 |
| 1952 | 10 |
| 1953 | 22 |
| 1954 | 18 |
| 1955 | 28 |
| 1956 | 10 |
| 1957 | 14 |
| 1958 | 5 |
| 1959 | 14 |
| 1960 | 23 |
| 1961 | 35 |
| 1962 | 15 |
| 1963 | 34 |
| 1964 | 25 |
| 1965 | 29 |
| 1966 | 13 |
| 1967 | 26 |
| 1968 | 11 |
| 1969 | 6 |
| 1970 | 13 |
| 1971 | 28 |
| 1972 | 28 |
| 1973 | 14 |
| 1974 | 8 |
| 1975 | 20 |
| 1976 | 18 |
| 1977 | 20 |
| 1978 | 16 |
| 1979 | 7 |
| 1980 | 17 |
| 1981 | 13 |
| 1982 | 16 |
| 1983 | 13 |
| 1984 | 15 |
| 1985 | 17 |
| 1986 | 22 |
| 1987 | 26 |
| 1988 | 8 |
| 1989 | 17 |
| 1990 | 26 |
| 1991 | 13 |
| 1992 | 12 |
| 1993 | 9 |
| 1994 | 2 |
| 1995 | 15 |
| 1996 | 18 |
| 1997 | 7 |
| 1998 | 13 |
| 1999 | 38 |
| 2000 | 42 |
| 2001 | 9 |
| 2002 | 7 |
| 2003 | 10 |
| 2004 | 11 |
| 2005 | 6 |
| 2006 | 15 |
| 2007 | 10 |
| 2008 | 14 |
| 2009 | 9 |
| 2010 | 14 |
| 2011 | 15 |
| 2012 | 10 |
| 2013 | 7 |
| 2014 | 14 |
| 2015 | 20 |
| 2016 | 7 |
| 2017 | 16 |
| 2018 | 3 |
| 2019 | 7 |
| 2020 | 13 |
| 2021 | 10 |
| 2022 | 1 |
| 2023 | 1 |
| 2025 | 12 |
| 2026 | 21 |
All-Time Record Progression
4 new records| Date | Kind | Detail |
|---|---|---|
| 1977-12-28 | Record daily precipitation | Record daily precipitation 43.9 mm (1.7 in) |
| 1978-02-10 | Record daily precipitation | Record daily precipitation 86.6 mm (3.4 in) |
| 1999-07-13 | Record high minimum temperature | Record high minimum temperature 27.8 C (82.0 F) |
| 2010-12-19 | Record daily precipitation | Record daily precipitation 92.7 mm (3.6 in) |
Wettest Day of Each Month
Dec: 92.7 mm (3.6 in)| Month | Record daily precipitation (mm) | Date |
|---|---|---|
| Jan | 43.2 mm (1.7 in) | 25 January 1999 |
| Feb | 86.6 mm (3.4 in) | 10 February 1978 |
| Mar | 39.4 mm (1.6 in) | 19 March 1991 |
| Apr | 34.3 mm (1.4 in) | 26 April 2002 |
| May | 22.6 mm (0.9 in) | 6 May 2005 |
| Jun | 11.9 mm (0.5 in) | 13 June 1998 |
| Jul | 13.5 mm (0.5 in) | 31 July 1965 |
| Aug | 16.8 mm (0.7 in) | 19 August 1983 |
| Sep | 31.5 mm (1.2 in) | 5 September 1978 |
| Oct | 25.7 mm (1.0 in) | 27 October 2004 |
| Nov | 46.0 mm (1.8 in) | 17 November 2025 |
| Dec | 92.7 mm (3.6 in) | 19 December 2010 |
Period of Record Coverage
1940 to 2026| Year | Days with data | Share of year | Complete |
|---|---|---|---|
| 1940 | 366 | 100% | Yes |
| 1941 | 365 | 100% | Yes |
| 1942 | 362 | 99% | Yes |
| 1943 | 243 | 67% | No |
| 1944 | 360 | 98% | Yes |
| 1945 | 359 | 98% | Yes |
| 1946 | 360 | 99% | Yes |
| 1947 | 363 | 99% | Yes |
| 1948 | 359 | 98% | Yes |
| 1949 | 341 | 93% | Yes |
| 1950 | 335 | 92% | Yes |
| 1951 | 349 | 96% | Yes |
| 1952 | 349 | 95% | Yes |
| 1953 | 360 | 99% | Yes |
| 1954 | 363 | 99% | Yes |
| 1955 | 364 | 100% | Yes |
| 1956 | 357 | 98% | Yes |
| 1957 | 355 | 97% | Yes |
| 1958 | 365 | 100% | Yes |
| 1959 | 354 | 97% | 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 | 364 | 100% | Yes |
| 1982 | 365 | 100% | Yes |
| 1983 | 365 | 100% | Yes |
| 1984 | 366 | 100% | Yes |
| 1985 | 332 | 91% | Yes |
| 1986 | 365 | 100% | Yes |
| 1987 | 365 | 100% | Yes |
| 1988 | 365 | 100% | Yes |
| 1989 | 365 | 100% | Yes |
| 1990 | 365 | 100% | Yes |
| 1991 | 365 | 100% | Yes |
| 1992 | 366 | 100% | Yes |
| 1993 | 365 | 100% | Yes |
| 1994 | 351 | 96% | Yes |
| 1995 | 365 | 100% | Yes |
| 1996 | 366 | 100% | Yes |
| 1997 | 365 | 100% | Yes |
| 1998 | 365 | 100% | Yes |
| 1999 | 364 | 100% | Yes |
| 2000 | 365 | 100% | Yes |
| 2001 | 365 | 100% | Yes |
| 2002 | 364 | 100% | Yes |
| 2003 | 364 | 100% | Yes |
| 2004 | 366 | 100% | Yes |
| 2005 | 363 | 99% | Yes |
| 2006 | 363 | 99% | Yes |
| 2007 | 364 | 100% | Yes |
| 2008 | 340 | 93% | Yes |
| 2009 | 365 | 100% | Yes |
| 2010 | 363 | 99% | Yes |
| 2011 | 365 | 100% | Yes |
| 2012 | 333 | 91% | Yes |
| 2013 | 345 | 95% | Yes |
| 2014 | 363 | 99% | Yes |
| 2015 | 360 | 99% | Yes |
| 2016 | 365 | 100% | Yes |
| 2017 | 352 | 96% | Yes |
| 2018 | 355 | 97% | Yes |
| 2019 | 336 | 92% | Yes |
| 2020 | 334 | 91% | Yes |
| 2021 | 304 | 83% | No |
| 2022 | 63 | 17% | No |
| 2023 | 24 | 7% | No |
| 2024 | 20 | 5% | No |
| 2025 | 229 | 63% | No |
| 2026 | 243 | 67% | No |
Latest Records
20| Date | Station | Record | Value | Beat old record by | Old record stood | Significance |
|---|---|---|---|---|---|---|
| 24 August 2026 | Buttonwillow, US | daily high max (Tie, Provisional) | 41.1 C (106.0 F) | tie | 80 years | 8 of 100 (Routine) |
| 10 August 2026 | Buttonwillow, US | daily high max (Tie) | 42.8 C (109.0 F) | tie | 85 years | 8 of 100 (Routine) |
| 9 August 2026 | Buttonwillow, US | daily high max | 43.9 C (111.0 F) | 1.1 C (2.0 F) | 44 years | 24 of 100 (Routine) |
| 4 August 2026 | Buttonwillow, US | daily high max (Tie) | 42.8 C (109.0 F) | tie | 80 years | 8 of 100 (Routine) |
| 29 May 2026 | Buttonwillow, US | daily low max | 18.3 C (64.9 F) | 1.1 C (2.0 F) | 72 years | 31 of 100 (Routine) |
| 13 May 2026 | Buttonwillow, US | daily high max | 38.3 C (100.9 F) | 0.5 C (0.9 F) | 39 years | 20 of 100 (Routine) |
| 22 April 2026 | Buttonwillow, US | daily rain | 6.9 mm (0.27 in) | 1.8 mm (0.07 in) | 19 years | 16 of 100 (Routine) |
| 29 March 2026 | Buttonwillow, US | daily high max | 31.1 C (88.0 F) | 1.7 C (3.1 F) | 56 years | 29 of 100 (Routine) |
| 25 March 2026 | Buttonwillow, US | daily high max | 31.1 C (88.0 F) | 2.2 C (4.0 F) | 72 years | 34 of 100 (Routine) |
| 24 March 2026 | Buttonwillow, US | daily high max | 31.7 C (89.1 F) | 1.7 C (3.1 F) | 21 years | 18 of 100 (Routine) |
| 23 March 2026 | Buttonwillow, US | daily high min | 12.8 C (55.0 F) | 0.6 C (1.1 F) | 79 years | 32 of 100 (Routine) |
| 23 March 2026 | Buttonwillow, US | daily high max | 32.2 C (90.0 F) | 1.6 C (2.9 F) | 25 years | 18 of 100 (Routine) |
| 22 March 2026 | Buttonwillow, US | daily high min | 13.9 C (57.0 F) | 1.1 C (2.0 F) | 21 years | 17 of 100 (Routine) |
| 21 March 2026 | Buttonwillow, US | daily high min | 15.0 C (59.0 F) | 1.7 C (3.1 F) | 48 years | 27 of 100 (Routine) |
| 21 March 2026 | Buttonwillow, US | monthly high max (Tie) | 33.9 C (93.0 F) | tie | 0 years | 4 of 100 (Routine) |
| 20 March 2026 | Buttonwillow, US | daily high min | 15.0 C (59.0 F) | 1.7 C (3.1 F) | 36 years | 23 of 100 (Routine) |
| 20 March 2026 | Buttonwillow, US | monthly high max (Tie) | 33.9 C (93.0 F) | tie | 0 years | 4 of 100 (Routine) |
| 19 March 2026 | Buttonwillow, US | monthly high max (Tie) | 33.9 C (93.0 F) | tie | 0 years | 4 of 100 (Routine) |
| 19 March 2026 | Buttonwillow, US | daily high min (Tie) | 13.9 C (57.0 F) | tie | 21 years | 3 of 100 (Routine) |
| 18 March 2026 | Buttonwillow, US | monthly high max | 33.9 C (93.0 F) | 0.6 C (1.1 F) | 39 years | 30 of 100 (Routine) |
Climate Trend
72 complete years, 1940 to 2018| Year | Annual mean temperature | Difference from the station mean |
|---|---|---|
| 1940 | 18.0 C | +0.47 C |
| 1941 | 17.4 C | -0.06 C |
| 1942 | 17.1 C | -0.42 C |
| 1944 | 17.3 C | -0.24 C |
| 1945 | 17.5 C | +0.03 C |
| 1946 | 17.5 C | +0.03 C |
| 1947 | 17.4 C | -0.14 C |
| 1948 | 16.8 C | -0.75 C |
| 1949 | 16.9 C | -0.56 C |
| 1950 | 17.9 C | +0.37 C |
| 1951 | 17.4 C | -0.08 C |
| 1952 | 17.2 C | -0.33 C |
| 1953 | 16.7 C | -0.77 C |
| 1954 | 16.9 C | -0.58 C |
| 1955 | 16.6 C | -0.92 C |
| 1956 | 16.7 C | -0.79 C |
| 1957 | 17.1 C | -0.42 C |
| 1958 | 18.0 C | +0.50 C |
| 1959 | 18.1 C | +0.57 C |
| 1960 | 17.7 C | +0.17 C |
| 1961 | 17.3 C | -0.16 C |
| 1962 | 17.0 C | -0.52 C |
| 1963 | 16.7 C | -0.84 C |
| 1964 | 16.9 C | -0.57 C |
| 1965 | 16.9 C | -0.56 C |
| 1966 | 17.7 C | +0.22 C |
| 1967 | 17.5 C | -0.03 C |
| 1968 | 17.3 C | -0.22 C |
| 1969 | 17.0 C | -0.48 C |
| 1970 | 17.5 C | -0.04 C |
| 1971 | 16.2 C | -1.27 C |
| 1972 | 17.1 C | -0.40 C |
| 1973 | 17.3 C | -0.22 C |
| 1974 | 17.3 C | -0.21 C |
| 1975 | 16.3 C | -1.20 C |
| 1976 | 16.7 C | -0.77 C |
| 1977 | 17.3 C | -0.17 C |
| 1978 | 17.3 C | -0.19 C |
| 1979 | 17.7 C | +0.16 C |
| 1980 | 17.3 C | -0.21 C |
| 1981 | 17.9 C | +0.42 C |
| 1982 | 16.8 C | -0.72 C |
| 1983 | 17.4 C | -0.07 C |
| 1984 | 18.0 C | +0.50 C |
| 1986 | 17.5 C | -0.03 C |
| 1987 | 17.1 C | -0.45 C |
| 1988 | 17.1 C | -0.44 C |
| 1989 | 17.0 C | -0.54 C |
| 1990 | 17.3 C | -0.20 C |
| 1991 | 17.6 C | +0.06 C |
| 1992 | 18.1 C | +0.62 C |
| 1993 | 17.5 C | -0.04 C |
| 1995 | 18.0 C | +0.50 C |
| 1996 | 18.1 C | +0.59 C |
| 1997 | 17.9 C | +0.36 C |
| 1998 | 16.9 C | -0.65 C |
| 1999 | 19.1 C | +1.62 C |
| 2000 | 18.7 C | +1.15 C |
| 2001 | 18.4 C | +0.89 C |
| 2002 | 17.8 C | +0.33 C |
| 2003 | 18.3 C | +0.79 C |
| 2004 | 18.0 C | +0.47 C |
| 2005 | 18.1 C | +0.63 C |
| 2006 | 17.8 C | +0.29 C |
| 2007 | 17.8 C | +0.30 C |
| 2009 | 18.0 C | +0.47 C |
| 2010 | 17.5 C | -0.04 C |
| 2011 | 17.3 C | -0.16 C |
| 2014 | 19.2 C | +1.66 C |
| 2016 | 18.7 C | +1.19 C |
| 2017 | 18.5 C | +1.03 C |
| 2018 | 18.5 C | +0.99 C |
The annual mean temperature here has risen by 0.1 C (0.1 to 0.2) per decade over 1940 to 2018. In Fahrenheit: 0.3 F (0.2 to 0.4) per decade. The slope is a straight line fitted to 72 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 | 0.3 F (0.2 to 0.4) per decade | 1940 to 2018 | 72 | Rise |
| Mean daily maximum | -0.02 C (-0.09 to 0.05) per decade | -0.04 F (-0.17 to 0.09) per decade | 1940 to 2018 | 72 | Not clearly different from zero |
| Mean daily minimum | 0.3 C (0.3 to 0.4) per decade | 0.6 F (0.5 to 0.7) per decade | 1940 to 2018 | 72 | 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
1940 to 2026| Measure | Record | Year of the record | Median year | Years with a value |
|---|---|---|---|---|
| Hottest day (TXx) | 45.6 C (114.1 F) | 1942 | 42.2 C (108.0 F) | 87 |
| Coldest night (TNn) | -12.8 C (9.0 F) | 1963 | -5.0 C (23.0 F) | 87 |
| Wettest day (Rx1day) | 92.7 mm (3.6 in) | 2010 | 18.3 mm (0.7 in) | 87 |
| Wettest five days (Rx5day) | 119.8 mm (4.7 in) | 2010 | 29.2 mm (1.1 in) | 87 |
| Longest dry spell (CDD) | 244 days | 2018 | 143 days | 87 |
Hottest day (TXx)
| Year | Hottest day (TXx) |
|---|---|
| 1940 | 44.4 C (111.9 F) |
| 1941 | 43.3 C (109.9 F) |
| 1942 | 45.6 C (114.1 F) |
| 1943 | 44.4 C (111.9 F) |
| 1944 | 45.0 C (113.0 F) |
| 1945 | 45.0 C (113.0 F) |
| 1946 | 45.6 C (114.1 F) |
| 1947 | 41.7 C (107.1 F) |
| 1948 | 42.8 C (109.0 F) |
| 1949 | 44.4 C (111.9 F) |
| 1950 | 45.6 C (114.1 F) |
| 1951 | 41.7 C (107.1 F) |
| 1952 | 41.7 C (107.1 F) |
| 1953 | 42.2 C (108.0 F) |
| 1954 | 44.4 C (111.9 F) |
| 1955 | 45.0 C (113.0 F) |
| 1956 | 42.8 C (109.0 F) |
| 1957 | 43.9 C (111.0 F) |
| 1958 | 42.2 C (108.0 F) |
| 1959 | 44.4 C (111.9 F) |
| 1960 | 44.4 C (111.9 F) |
| 1961 | 45.6 C (114.1 F) |
| 1962 | 41.1 C (106.0 F) |
| 1963 | 41.7 C (107.1 F) |
| 1964 | 42.8 C (109.0 F) |
| 1965 | 38.9 C (102.0 F) |
| 1966 | 42.2 C (108.0 F) |
| 1967 | 43.3 C (109.9 F) |
| 1968 | 41.7 C (107.1 F) |
| 1969 | 40.6 C (105.1 F) |
| 1970 | 43.3 C (109.9 F) |
| 1971 | 42.2 C (108.0 F) |
| 1972 | 45.6 C (114.1 F) |
| 1973 | 42.8 C (109.0 F) |
| 1974 | 41.7 C (107.1 F) |
| 1975 | 41.7 C (107.1 F) |
| 1976 | 41.1 C (106.0 F) |
| 1977 | 42.2 C (108.0 F) |
| 1978 | 41.7 C (107.1 F) |
| 1979 | 42.2 C (108.0 F) |
| 1980 | 42.8 C (109.0 F) |
| 1981 | 42.8 C (109.0 F) |
| 1982 | 40.6 C (105.1 F) |
| 1983 | 41.7 C (107.1 F) |
| 1984 | 41.7 C (107.1 F) |
| 1985 | 41.7 C (107.1 F) |
| 1986 | 41.7 C (107.1 F) |
| 1987 | 40.0 C (104.0 F) |
| 1988 | 41.7 C (107.1 F) |
| 1989 | 41.1 C (106.0 F) |
| 1990 | 42.8 C (109.0 F) |
| 1991 | 42.2 C (108.0 F) |
| 1992 | 41.7 C (107.1 F) |
| 1993 | 41.7 C (107.1 F) |
| 1994 | 41.1 C (106.0 F) |
| 1995 | 41.7 C (107.1 F) |
| 1996 | 41.7 C (107.1 F) |
| 1997 | 41.1 C (106.0 F) |
| 1998 | 42.2 C (108.0 F) |
| 1999 | 42.8 C (109.0 F) |
| 2000 | 43.3 C (109.9 F) |
| 2001 | 42.8 C (109.0 F) |
| 2002 | 42.2 C (108.0 F) |
| 2003 | 41.1 C (106.0 F) |
| 2004 | 40.6 C (105.1 F) |
| 2005 | 41.1 C (106.0 F) |
| 2006 | 43.3 C (109.9 F) |
| 2007 | 43.3 C (109.9 F) |
| 2008 | 43.9 C (111.0 F) |
| 2009 | 42.2 C (108.0 F) |
| 2010 | 43.9 C (111.0 F) |
| 2011 | 40.6 C (105.1 F) |
| 2012 | 41.7 C (107.1 F) |
| 2013 | 42.8 C (109.0 F) |
| 2014 | 42.2 C (108.0 F) |
| 2015 | 41.7 C (107.1 F) |
| 2016 | 41.7 C (107.1 F) |
| 2017 | 42.8 C (109.0 F) |
| 2018 | 42.2 C (108.0 F) |
| 2019 | 41.7 C (107.1 F) |
| 2020 | 41.7 C (107.1 F) |
| 2021 | 44.4 C (111.9 F) |
| 2022 | 35.0 C (95.0 F) |
| 2023 | 20.6 C (69.1 F) |
| 2024 | 22.8 C (73.0 F) |
| 2025 | 41.7 C (107.1 F) |
| 2026 | 43.9 C (111.0 F) |
Coldest night (TNn)
| Year | Coldest night (TNn) |
|---|---|
| 1940 | -7.8 C (18.0 F) |
| 1941 | -6.1 C (21.0 F) |
| 1942 | -6.1 C (21.0 F) |
| 1943 | -10.0 C (14.0 F) |
| 1944 | -4.4 C (24.1 F) |
| 1945 | -5.6 C (21.9 F) |
| 1946 | -6.7 C (19.9 F) |
| 1947 | -7.2 C (19.0 F) |
| 1948 | -9.4 C (15.1 F) |
| 1949 | -10.6 C (12.9 F) |
| 1950 | -9.4 C (15.1 F) |
| 1951 | -6.1 C (21.0 F) |
| 1952 | -6.1 C (21.0 F) |
| 1953 | -6.1 C (21.0 F) |
| 1954 | -6.7 C (19.9 F) |
| 1955 | -4.4 C (24.1 F) |
| 1956 | -7.2 C (19.0 F) |
| 1957 | -5.0 C (23.0 F) |
| 1958 | -3.9 C (25.0 F) |
| 1959 | -6.1 C (21.0 F) |
| 1960 | -7.8 C (18.0 F) |
| 1961 | -4.4 C (24.1 F) |
| 1962 | -8.3 C (17.1 F) |
| 1963 | -12.8 C (9.0 F) |
| 1964 | -4.4 C (24.1 F) |
| 1965 | -6.1 C (21.0 F) |
| 1966 | -4.4 C (24.1 F) |
| 1967 | -5.0 C (23.0 F) |
| 1968 | -8.3 C (17.1 F) |
| 1969 | -6.7 C (19.9 F) |
| 1970 | -8.9 C (16.0 F) |
| 1971 | -7.2 C (19.0 F) |
| 1972 | -7.2 C (19.0 F) |
| 1973 | -6.1 C (21.0 F) |
| 1974 | -6.7 C (19.9 F) |
| 1975 | -6.7 C (19.9 F) |
| 1976 | -7.2 C (19.0 F) |
| 1977 | -2.2 C (28.0 F) |
| 1978 | -7.2 C (19.0 F) |
| 1979 | -6.1 C (21.0 F) |
| 1980 | -7.2 C (19.0 F) |
| 1981 | -2.8 C (27.0 F) |
| 1982 | -6.1 C (21.0 F) |
| 1983 | -5.0 C (23.0 F) |
| 1984 | -2.8 C (27.0 F) |
| 1985 | -6.7 C (19.9 F) |
| 1986 | -2.8 C (27.0 F) |
| 1987 | -7.2 C (19.0 F) |
| 1988 | -5.0 C (23.0 F) |
| 1989 | -5.6 C (21.9 F) |
| 1990 | -11.1 C (12.0 F) |
| 1991 | -5.0 C (23.0 F) |
| 1992 | -3.3 C (26.1 F) |
| 1993 | -4.4 C (24.1 F) |
| 1994 | -3.9 C (25.0 F) |
| 1995 | -2.2 C (28.0 F) |
| 1996 | -1.7 C (28.9 F) |
| 1997 | -4.4 C (24.1 F) |
| 1998 | -7.2 C (19.0 F) |
| 1999 | -1.1 C (30.0 F) |
| 2000 | -3.9 C (25.0 F) |
| 2001 | -6.1 C (21.0 F) |
| 2002 | -3.3 C (26.1 F) |
| 2003 | -2.8 C (27.0 F) |
| 2004 | -5.6 C (21.9 F) |
| 2005 | -2.2 C (28.0 F) |
| 2006 | -4.4 C (24.1 F) |
| 2007 | -8.9 C (16.0 F) |
| 2008 | -3.3 C (26.1 F) |
| 2009 | -3.3 C (26.1 F) |
| 2010 | -4.4 C (24.1 F) |
| 2011 | -4.4 C (24.1 F) |
| 2012 | -3.9 C (25.0 F) |
| 2013 | -6.7 C (19.9 F) |
| 2014 | -1.7 C (28.9 F) |
| 2015 | -5.0 C (23.0 F) |
| 2016 | -5.0 C (23.0 F) |
| 2017 | -5.6 C (21.9 F) |
| 2018 | -2.8 C (27.0 F) |
| 2019 | -4.4 C (24.1 F) |
| 2020 | -3.3 C (26.1 F) |
| 2021 | -2.2 C (28.0 F) |
| 2022 | -1.7 C (28.9 F) |
| 2023 | 0.0 C (32.0 F) |
| 2024 | 0.6 C (33.1 F) |
| 2025 | 1.1 C (34.0 F) |
| 2026 | -1.1 C (30.0 F) |
Wettest day (Rx1day)
| Year | Wettest day (Rx1day) |
|---|---|
| 1940 | 22.4 mm (0.9 in) |
| 1941 | 18.3 mm (0.7 in) |
| 1942 | 17.5 mm (0.7 in) |
| 1943 | 25.7 mm (1.0 in) |
| 1944 | 21.6 mm (0.9 in) |
| 1945 | 13.2 mm (0.5 in) |
| 1946 | 16.8 mm (0.7 in) |
| 1947 | 8.1 mm (0.32 in) |
| 1948 | 10.4 mm (0.4 in) |
| 1949 | 12.2 mm (0.5 in) |
| 1950 | 16.8 mm (0.7 in) |
| 1951 | 13.5 mm (0.5 in) |
| 1952 | 25.9 mm (1.0 in) |
| 1953 | 16.8 mm (0.7 in) |
| 1954 | 24.1 mm (0.9 in) |
| 1955 | 10.4 mm (0.4 in) |
| 1956 | 7.9 mm (0.31 in) |
| 1957 | 14.0 mm (0.6 in) |
| 1958 | 16.8 mm (0.7 in) |
| 1959 | 16.8 mm (0.7 in) |
| 1960 | 31.8 mm (1.3 in) |
| 1961 | 17.3 mm (0.7 in) |
| 1962 | 35.3 mm (1.4 in) |
| 1963 | 15.5 mm (0.6 in) |
| 1964 | 11.2 mm (0.4 in) |
| 1965 | 25.4 mm (1.0 in) |
| 1966 | 18.3 mm (0.7 in) |
| 1967 | 12.7 mm (0.5 in) |
| 1968 | 23.9 mm (0.9 in) |
| 1969 | 22.4 mm (0.9 in) |
| 1970 | 17.3 mm (0.7 in) |
| 1971 | 15.7 mm (0.6 in) |
| 1972 | 10.9 mm (0.4 in) |
| 1973 | 15.7 mm (0.6 in) |
| 1974 | 26.9 mm (1.1 in) |
| 1975 | 11.4 mm (0.4 in) |
| 1976 | 26.4 mm (1.0 in) |
| 1977 | 43.9 mm (1.7 in) |
| 1978 | 86.6 mm (3.4 in) |
| 1979 | 17.5 mm (0.7 in) |
| 1980 | 21.1 mm (0.8 in) |
| 1981 | 17.8 mm (0.7 in) |
| 1982 | 27.2 mm (1.1 in) |
| 1983 | 21.1 mm (0.8 in) |
| 1984 | 15.5 mm (0.6 in) |
| 1985 | 24.4 mm (1.0 in) |
| 1986 | 14.0 mm (0.6 in) |
| 1987 | 39.6 mm (1.6 in) |
| 1988 | 20.3 mm (0.8 in) |
| 1989 | 19.1 mm (0.8 in) |
| 1990 | 7.6 mm (0.30 in) |
| 1991 | 39.4 mm (1.6 in) |
| 1992 | 20.6 mm (0.8 in) |
| 1993 | 17.5 mm (0.7 in) |
| 1994 | 24.1 mm (0.9 in) |
| 1995 | 37.1 mm (1.5 in) |
| 1996 | 20.1 mm (0.8 in) |
| 1997 | 24.4 mm (1.0 in) |
| 1998 | 24.4 mm (1.0 in) |
| 1999 | 43.2 mm (1.7 in) |
| 2000 | 17.8 mm (0.7 in) |
| 2001 | 33.3 mm (1.3 in) |
| 2002 | 34.3 mm (1.4 in) |
| 2003 | 17.0 mm (0.7 in) |
| 2004 | 25.7 mm (1.0 in) |
| 2005 | 22.6 mm (0.9 in) |
| 2006 | 30.5 mm (1.2 in) |
| 2007 | 6.9 mm (0.27 in) |
| 2008 | 10.9 mm (0.4 in) |
| 2009 | 19.6 mm (0.8 in) |
| 2010 | 92.7 mm (3.6 in) |
| 2011 | 19.8 mm (0.8 in) |
| 2012 | 16.5 mm (0.6 in) |
| 2013 | 13.5 mm (0.5 in) |
| 2014 | 15.2 mm (0.6 in) |
| 2015 | 10.7 mm (0.4 in) |
| 2016 | 28.7 mm (1.1 in) |
| 2017 | 23.1 mm (0.9 in) |
| 2018 | 15.0 mm (0.6 in) |
| 2019 | 18.3 mm (0.7 in) |
| 2020 | 14.0 mm (0.6 in) |
| 2021 | 25.4 mm (1.0 in) |
| 2022 | 10.7 mm (0.4 in) |
| 2023 | 58.4 mm (2.3 in) |
| 2024 | 10.9 mm (0.4 in) |
| 2025 | 46.0 mm (1.8 in) |
| 2026 | 24.9 mm (1.0 in) |
Wettest five days (Rx5day)
| Year | Wettest five days (Rx5day) |
|---|---|
| 1940 | 32.1 mm (1.3 in) |
| 1941 | 30.0 mm (1.2 in) |
| 1942 | 26.2 mm (1.0 in) |
| 1943 | 38.1 mm (1.5 in) |
| 1944 | 32.2 mm (1.3 in) |
| 1945 | 20.6 mm (0.8 in) |
| 1946 | 24.0 mm (0.9 in) |
| 1947 | 17.0 mm (0.7 in) |
| 1948 | 11.7 mm (0.5 in) |
| 1949 | 17.8 mm (0.7 in) |
| 1950 | 22.6 mm (0.9 in) |
| 1951 | 19.6 mm (0.8 in) |
| 1952 | 42.1 mm (1.7 in) |
| 1953 | 20.6 mm (0.8 in) |
| 1954 | 25.1 mm (1.0 in) |
| 1955 | 23.8 mm (0.9 in) |
| 1956 | 19.4 mm (0.8 in) |
| 1957 | 15.1 mm (0.6 in) |
| 1958 | 33.4 mm (1.3 in) |
| 1959 | 20.4 mm (0.8 in) |
| 1960 | 48.5 mm (1.9 in) |
| 1961 | 19.1 mm (0.8 in) |
| 1962 | 94.3 mm (3.7 in) |
| 1963 | 31.0 mm (1.2 in) |
| 1964 | 16.0 mm (0.6 in) |
| 1965 | 37.9 mm (1.5 in) |
| 1966 | 23.4 mm (0.9 in) |
| 1967 | 30.7 mm (1.2 in) |
| 1968 | 24.4 mm (1.0 in) |
| 1969 | 40.7 mm (1.6 in) |
| 1970 | 33.5 mm (1.3 in) |
| 1971 | 27.9 mm (1.1 in) |
| 1972 | 19.2 mm (0.8 in) |
| 1973 | 21.0 mm (0.8 in) |
| 1974 | 32.0 mm (1.3 in) |
| 1975 | 21.3 mm (0.8 in) |
| 1976 | 42.9 mm (1.7 in) |
| 1977 | 50.2 mm (2.0 in) |
| 1978 | 115.3 mm (4.5 in) |
| 1979 | 27.1 mm (1.1 in) |
| 1980 | 35.0 mm (1.4 in) |
| 1981 | 27.6 mm (1.1 in) |
| 1982 | 35.0 mm (1.4 in) |
| 1983 | 39.5 mm (1.6 in) |
| 1984 | 29.3 mm (1.2 in) |
| 1985 | 27.4 mm (1.1 in) |
| 1986 | 27.2 mm (1.1 in) |
| 1987 | 51.6 mm (2.0 in) |
| 1988 | 29.2 mm (1.1 in) |
| 1989 | 23.9 mm (0.9 in) |
| 1990 | 14.2 mm (0.6 in) |
| 1991 | 79.6 mm (3.1 in) |
| 1992 | 42.7 mm (1.7 in) |
| 1993 | 33.5 mm (1.3 in) |
| 1994 | 30.2 mm (1.2 in) |
| 1995 | 47.5 mm (1.9 in) |
| 1996 | 32.5 mm (1.3 in) |
| 1997 | 26.5 mm (1.0 in) |
| 1998 | 50.8 mm (2.0 in) |
| 1999 | 66.9 mm (2.6 in) |
| 2000 | 28.2 mm (1.1 in) |
| 2001 | 38.9 mm (1.5 in) |
| 2002 | 34.6 mm (1.4 in) |
| 2003 | 24.7 mm (1.0 in) |
| 2004 | 29.0 mm (1.1 in) |
| 2005 | 32.5 mm (1.3 in) |
| 2006 | 39.9 mm (1.6 in) |
| 2007 | 10.2 mm (0.4 in) |
| 2008 | 16.9 mm (0.7 in) |
| 2009 | 29.7 mm (1.2 in) |
| 2010 | 119.8 mm (4.7 in) |
| 2011 | 33.5 mm (1.3 in) |
| 2012 | 30.9 mm (1.2 in) |
| 2013 | 13.5 mm (0.5 in) |
| 2014 | 39.9 mm (1.6 in) |
| 2015 | 11.0 mm (0.4 in) |
| 2016 | 28.7 mm (1.1 in) |
| 2017 | 35.8 mm (1.4 in) |
| 2018 | 23.3 mm (0.9 in) |
| 2019 | 18.6 mm (0.7 in) |
| 2020 | 16.5 mm (0.6 in) |
| 2021 | 14.7 mm (0.6 in) |
| 2022 | 16.0 mm (0.6 in) |
| 2023 | 59.4 mm (2.3 in) |
| 2024 | 22.6 mm (0.9 in) |
| 2025 | 57.4 mm (2.3 in) |
| 2026 | 36.2 mm (1.4 in) |
Longest dry spell (CDD)
| Year | Longest dry spell (CDD) |
|---|---|
| 1940 | 177 days |
| 1941 | 152 days |
| 1942 | 169 days |
| 1943 | 61 days |
| 1944 | 170 days |
| 1945 | 129 days |
| 1946 | 122 days |
| 1947 | 187 days |
| 1948 | 185 days |
| 1949 | 121 days |
| 1950 | 94 days |
| 1951 | 97 days |
| 1952 | 108 days |
| 1953 | 166 days |
| 1954 | 152 days |
| 1955 | 192 days |
| 1956 | 96 days |
| 1957 | 102 days |
| 1958 | 117 days |
| 1959 | 153 days |
| 1960 | 160 days |
| 1961 | 236 days |
| 1962 | 228 days |
| 1963 | 85 days |
| 1964 | 116 days |
| 1965 | 110 days |
| 1966 | 115 days |
| 1967 | 140 days |
| 1968 | 152 days |
| 1969 | 115 days |
| 1970 | 217 days |
| 1971 | 124 days |
| 1972 | 158 days |
| 1973 | 131 days |
| 1974 | 182 days |
| 1975 | 176 days |
| 1976 | 91 days |
| 1977 | 97 days |
| 1978 | 131 days |
| 1979 | 145 days |
| 1980 | 219 days |
| 1981 | 164 days |
| 1982 | 137 days |
| 1983 | 104 days |
| 1984 | 92 days |
| 1985 | 99 days |
| 1986 | 171 days |
| 1987 | 138 days |
| 1988 | 153 days |
| 1989 | 129 days |
| 1990 | 175 days |
| 1991 | 177 days |
| 1992 | 207 days |
| 1993 | 126 days |
| 1994 | 127 days |
| 1995 | 167 days |
| 1996 | 105 days |
| 1997 | 201 days |
| 1998 | 83 days |
| 1999 | 162 days |
| 2000 | 175 days |
| 2001 | 191 days |
| 2002 | 171 days |
| 2003 | 90 days |
| 2004 | 204 days |
| 2005 | 161 days |
| 2006 | 144 days |
| 2007 | 190 days |
| 2008 | 162 days |
| 2009 | 155 days |
| 2010 | 141 days |
| 2011 | 120 days |
| 2012 | 108 days |
| 2013 | 161 days |
| 2014 | 211 days |
| 2015 | 74 days |
| 2016 | 144 days |
| 2017 | 119 days |
| 2018 | 244 days |
| 2019 | 173 days |
| 2020 | 82 days |
| 2021 | 121 days |
| 2022 | 33 days |
| 2023 | 92 days |
| 2024 | 8 days |
| 2025 | 143 days |
| 2026 | 131 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
69 years with a frostAcross 69 years with a frost, the median last spring frost at Buttonwillow falls on 25 February and the median first autumn frost on 18 November, which leaves a median of 269 days between them.
In 1980 to 2018 the median growing season was 279 days. That is 21 days more than in 1940 to 1970.
Fitted over all years, the growing season changes by +4.9 days per decade at this station.
| Measure | Median, all years | Earliest period (1940 to 1970) | Recent period (1980 to 2018) | Recent against earliest | Fitted trend |
|---|---|---|---|---|---|
| Last spring frost | 25 February | 5 March | 11 February | 22 days earlier | -3.3 days per decade |
| First autumn frost | 18 November | 17 November | 22 November | 5 days later | +1.6 days per decade |
| Growing days | 269 days | 258 days | 279 days | 21 days more | +4.9 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
77 years, 1940 to 2025A day with at least 18.9 mm (0.7 in) of rain is expected about once in 2 years. A day with at least 76.5 mm (3.0 in) of rain is expected about once in 100 years.
| Expected about once in | A day with at least | Note |
|---|---|---|
| 2 years | 18.9 mm (0.7 in) | |
| 5 years | 28.8 mm (1.1 in) | |
| 10 years | 37.0 mm (1.5 in) | |
| 25 years | 50.1 mm (2.0 in) | |
| 50 years | 62.2 mm (2.4 in) | |
| 100 years | 76.5 mm (3.0 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 1940 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: 92.7 mm (3.6 in) in 2010; 86.6 mm (3.4 in) in 1978; 46.0 mm (1.8 in) in 2025.
Station Changes
2 suspected2 changes were suspected in the annual mean temperature of Buttonwillow, at 1986 and 1991. Each is measured against neighbouring stations.
- Relative to 5 neighbouring stations, the station's annual mean temperature from 1986 ran 0.5 C (0.8 F) lower than in the years before (possible change).
- Relative to 5 neighbouring stations, the station's annual mean temperature from 1991 ran 0.3 C (0.6 F) higher than in the years before (possible change).
| Year | Shift (C) | Shift (F) | Strength | Neighbours |
|---|---|---|---|---|
| 1986 | -0.4 | -0.8 | possible | 5 |
| 1991 | +0.3 | +0.6 | 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.
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 2026-10-12 (12 October 2026). Records are computed by this site and are not official.
Data as of . Last revised (2026-10-13).