Alturas Weather Records (USC00040161)
Record envelope, standing records and threshold days for Alturas (USC00040161), California, United States, with 119 years of record.
Key Facts for Alturas
- Alturas (USC00040161) is a weather station in California, United States at 41.49 latitude and -120.54 longitude, 1,333 m (4,373 ft) above sea level.
- The station reports from 1905 to 2023, 119 years of record.
- 1,464 records set at Alturas still stand.
- Records are tracked for tmax, tmin, prcp, snow, snwd: an element needs 30 years of data to be eligible.
- Alturas set a daily record snow depth of 12.7 cm (5.0 in) on 8 March 2023.
About the Station
- Location: California, United States, 41.49 latitude, -120.54 longitude.
- Elevation: 1,333 m (4,373 ft).
- Period of record: 1905 to 2023, 119 years.
- Eligible elements: tmax, tmin, prcp, snow, snwd.
Daily Record Envelope and 2026
0 days at or beyond a record| Month | Highest record high | Lowest record low | 2026 highest maximum | 2026 lowest minimum |
|---|---|---|---|---|
| Jan | 20.6 C (69.1 F) | -35.6 C (-32.1 F) | n/a | n/a |
| Feb | 23.9 C (75.0 F) | -36.1 C (-33.0 F) | n/a | n/a |
| Mar | 27.8 C (82.0 F) | -31.7 C (-25.1 F) | n/a | n/a |
| Apr | 30.6 C (87.1 F) | -13.9 C (7.0 F) | n/a | n/a |
| May | 36.7 C (98.1 F) | -11.7 C (10.9 F) | n/a | n/a |
| Jun | 38.9 C (102.0 F) | -6.1 C (21.0 F) | n/a | n/a |
| Jul | 42.2 C (108.0 F) | -2.2 C (28.0 F) | n/a | n/a |
| Aug | 42.2 C (108.0 F) | -4.4 C (24.1 F) | n/a | n/a |
| Sep | 41.1 C (106.0 F) | -9.4 C (15.1 F) | n/a | n/a |
| Oct | 33.9 C (93.0 F) | -17.2 C (1.0 F) | n/a | n/a |
| Nov | 28.3 C (82.9 F) | -27.2 C (-17.0 F) | n/a | n/a |
| Dec | 21.7 C (71.1 F) | -36.7 C (-34.1 F) | n/a | n/a |
Which Years Hold Standing Records
1,464 standing records| Year set | Standing records |
|---|---|
| 1905 | 11 |
| 1906 | 10 |
| 1907 | 20 |
| 1908 | 21 |
| 1909 | 16 |
| 1910 | 24 |
| 1911 | 15 |
| 1912 | 12 |
| 1913 | 25 |
| 1914 | 16 |
| 1915 | 14 |
| 1916 | 32 |
| 1917 | 53 |
| 1918 | 13 |
| 1919 | 23 |
| 1931 | 20 |
| 1932 | 25 |
| 1933 | 20 |
| 1934 | 39 |
| 1935 | 9 |
| 1936 | 15 |
| 1937 | 15 |
| 1938 | 12 |
| 1939 | 9 |
| 1940 | 7 |
| 1941 | 12 |
| 1942 | 3 |
| 1943 | 9 |
| 1944 | 7 |
| 1945 | 10 |
| 1946 | 8 |
| 1947 | 8 |
| 1948 | 15 |
| 1949 | 26 |
| 1950 | 19 |
| 1951 | 4 |
| 1952 | 11 |
| 1953 | 4 |
| 1954 | 11 |
| 1955 | 19 |
| 1956 | 9 |
| 1957 | 5 |
| 1958 | 12 |
| 1959 | 22 |
| 1960 | 20 |
| 1961 | 35 |
| 1962 | 22 |
| 1963 | 19 |
| 1964 | 12 |
| 1965 | 8 |
| 1966 | 21 |
| 1967 | 17 |
| 1968 | 17 |
| 1969 | 9 |
| 1970 | 12 |
| 1971 | 16 |
| 1972 | 22 |
| 1973 | 12 |
| 1974 | 20 |
| 1975 | 20 |
| 1976 | 18 |
| 1977 | 25 |
| 1978 | 14 |
| 1979 | 11 |
| 1980 | 5 |
| 1981 | 8 |
| 1982 | 13 |
| 1983 | 14 |
| 1984 | 6 |
| 1985 | 33 |
| 1986 | 17 |
| 1987 | 17 |
| 1988 | 13 |
| 1989 | 18 |
| 1990 | 12 |
| 1991 | 8 |
| 1992 | 13 |
| 1993 | 16 |
| 1994 | 8 |
| 1995 | 21 |
| 1996 | 22 |
| 1997 | 10 |
| 1998 | 10 |
| 1999 | 10 |
| 2000 | 5 |
| 2001 | 11 |
| 2002 | 19 |
| 2003 | 15 |
| 2004 | 7 |
| 2005 | 7 |
| 2006 | 5 |
| 2007 | 11 |
| 2008 | 12 |
| 2009 | 7 |
| 2010 | 4 |
| 2011 | 2 |
| 2012 | 4 |
| 2013 | 6 |
| 2014 | 6 |
| 2015 | 7 |
| 2016 | 3 |
| 2017 | 11 |
| 2018 | 2 |
| 2019 | 1 |
| 2022 | 5 |
All-Time Record Progression
5 new records| Date | Kind | Detail |
|---|---|---|
| 1963-04-20 | Record daily snowfall | Record daily snowfall 35.6 cm (14.0 in) |
| 1972-12-09 | Record low minimum temperature | Record low minimum temperature -36.7 C (-34.1 F) |
| 1982-03-17 | Record daily snowfall | Record daily snowfall 38.1 cm (15.0 in) |
| 1990-12-22 | Record low maximum temperature | Record low maximum temperature -18.3 C (-0.9 F) |
| 2007-07-08 | Record high maximum temperature | Record high maximum temperature 42.2 C (108.0 F) |
Wettest Day of Each Month
Dec: 89.2 mm (3.5 in)| Month | Record daily precipitation (mm) | Date |
|---|---|---|
| Jan | 54.4 mm (2.1 in) | 15 January 1936 |
| Feb | 32.5 mm (1.3 in) | 18 February 1986 |
| Mar | 50.5 mm (2.0 in) | 8 March 1986 |
| Apr | 40.6 mm (1.6 in) | 29 April 1995 |
| May | 39.6 mm (1.6 in) | 17 May 1945 |
| Jun | 35.1 mm (1.4 in) | 6 June 1934 |
| Jul | 50.8 mm (2.0 in) | 23 July 1913 |
| Aug | 26.7 mm (1.1 in) | 2 August 1965 |
| Sep | 25.4 mm (1.0 in) | 26 September 1998 |
| Oct | 44.5 mm (1.8 in) | 13 October 1962 |
| Nov | 33.8 mm (1.3 in) | 19 November 1946 |
| Dec | 89.2 mm (3.5 in) | 11 December 1937 |
Period of Record Coverage
1905 to 2023| Year | Days with data | Share of year | Complete |
|---|---|---|---|
| 1905 | 243 | 67% | No |
| 1906 | 333 | 91% | Yes |
| 1907 | 364 | 100% | Yes |
| 1908 | 364 | 99% | Yes |
| 1909 | 365 | 100% | Yes |
| 1910 | 365 | 100% | Yes |
| 1911 | 365 | 100% | Yes |
| 1912 | 366 | 100% | Yes |
| 1913 | 365 | 100% | Yes |
| 1914 | 365 | 100% | Yes |
| 1915 | 365 | 100% | Yes |
| 1916 | 366 | 100% | Yes |
| 1917 | 365 | 100% | Yes |
| 1918 | 365 | 100% | Yes |
| 1919 | 334 | 92% | Yes |
| 1931 | 199 | 55% | No |
| 1932 | 361 | 99% | Yes |
| 1933 | 362 | 99% | Yes |
| 1934 | 307 | 84% | No |
| 1935 | 347 | 95% | Yes |
| 1936 | 338 | 92% | Yes |
| 1937 | 328 | 90% | No |
| 1938 | 364 | 100% | Yes |
| 1939 | 365 | 100% | Yes |
| 1940 | 332 | 91% | Yes |
| 1941 | 281 | 77% | No |
| 1942 | 314 | 86% | No |
| 1943 | 357 | 98% | Yes |
| 1944 | 366 | 100% | Yes |
| 1945 | 365 | 100% | Yes |
| 1946 | 360 | 99% | Yes |
| 1947 | 364 | 100% | Yes |
| 1948 | 366 | 100% | Yes |
| 1949 | 361 | 99% | Yes |
| 1950 | 359 | 98% | Yes |
| 1951 | 355 | 97% | Yes |
| 1952 | 340 | 93% | Yes |
| 1953 | 309 | 85% | No |
| 1954 | 352 | 96% | Yes |
| 1955 | 339 | 93% | Yes |
| 1956 | 356 | 97% | Yes |
| 1957 | 361 | 99% | Yes |
| 1958 | 365 | 100% | Yes |
| 1959 | 365 | 100% | Yes |
| 1960 | 364 | 99% | Yes |
| 1961 | 364 | 100% | Yes |
| 1962 | 365 | 100% | Yes |
| 1963 | 365 | 100% | Yes |
| 1964 | 366 | 100% | Yes |
| 1965 | 355 | 97% | Yes |
| 1966 | 347 | 95% | Yes |
| 1967 | 361 | 99% | Yes |
| 1968 | 366 | 100% | Yes |
| 1969 | 365 | 100% | Yes |
| 1970 | 365 | 100% | Yes |
| 1971 | 363 | 99% | Yes |
| 1972 | 352 | 96% | Yes |
| 1973 | 345 | 95% | Yes |
| 1974 | 319 | 87% | No |
| 1975 | 361 | 99% | Yes |
| 1976 | 349 | 95% | Yes |
| 1977 | 362 | 99% | Yes |
| 1978 | 364 | 100% | Yes |
| 1979 | 354 | 97% | Yes |
| 1980 | 353 | 96% | Yes |
| 1981 | 358 | 98% | Yes |
| 1982 | 363 | 99% | Yes |
| 1983 | 363 | 99% | Yes |
| 1984 | 366 | 100% | Yes |
| 1985 | 364 | 100% | Yes |
| 1986 | 365 | 100% | Yes |
| 1987 | 363 | 99% | Yes |
| 1988 | 365 | 100% | Yes |
| 1989 | 362 | 99% | Yes |
| 1990 | 365 | 100% | Yes |
| 1991 | 365 | 100% | Yes |
| 1992 | 366 | 100% | Yes |
| 1993 | 365 | 100% | Yes |
| 1994 | 365 | 100% | Yes |
| 1995 | 341 | 93% | Yes |
| 1996 | 351 | 96% | Yes |
| 1997 | 357 | 98% | Yes |
| 1998 | 357 | 98% | Yes |
| 1999 | 362 | 99% | Yes |
| 2000 | 354 | 97% | Yes |
| 2001 | 363 | 99% | Yes |
| 2002 | 363 | 99% | Yes |
| 2003 | 289 | 79% | No |
| 2004 | 321 | 88% | No |
| 2005 | 294 | 81% | No |
| 2006 | 253 | 69% | No |
| 2007 | 241 | 66% | No |
| 2008 | 204 | 56% | No |
| 2009 | 236 | 65% | No |
| 2010 | 245 | 67% | No |
| 2011 | 251 | 69% | No |
| 2012 | 254 | 69% | No |
| 2013 | 226 | 62% | No |
| 2014 | 237 | 65% | No |
| 2015 | 225 | 62% | No |
| 2016 | 189 | 52% | No |
| 2017 | 234 | 64% | No |
| 2018 | 65 | 18% | No |
| 2019 | 14 | 4% | No |
| 2022 | 38 | 10% | No |
| 2023 | 16 | 4% | No |
Latest Records
20| Date | Station | Record | Value | Beat old record by | Old record stood | Significance |
|---|---|---|---|---|---|---|
| 8 March 2023 | Alturas, US | daily snow depth | 12.7 cm (5.0 in) | 2.5 cm (1.0 in) | 84 years | 39 of 100 (Notable) |
| 6 March 2023 | Alturas, US | daily snow depth | 7.6 cm (3.0 in) | 2.5 cm (1.0 in) | 84 years | 20 of 100 (Routine) |
| 1 March 2023 | Alturas, US | daily snow depth | 10.2 cm (4.0 in) | 7.7 cm (3.0 in) | 68 years | 44 of 100 (Notable) |
| 27 February 2023 | Alturas, US | daily snowfall | 5.8 cm (2.3 in) | 0.7 cm (0.3 in) | 80 years | 35 of 100 (Notable) |
| 27 February 2023 | Alturas, US | daily snow depth (Tie) | 7.6 cm (3.0 in) | tie | 67 years | 7 of 100 (Routine) |
| 9 December 2022 | Alturas, US | daily snowfall | 10.7 cm (4.2 in) | 0.5 cm (0.2 in) | 59 years | 28 of 100 (Routine) |
| 3 November 2022 | Alturas, US | daily snow depth (Tie) | 2.5 cm (1.0 in) | tie | 28 years | 4 of 100 (Routine) |
| 2 November 2022 | Alturas, US | daily rain | 13.5 mm (0.5 in) | 3.3 mm (0.13 in) | 81 years | 20 of 100 (Routine) |
| 2 November 2022 | Alturas, US | daily low max | 2.8 C (37.0 F) | 1.6 C (2.9 F) | 87 years | 38 of 100 (Notable) |
| 2 November 2022 | Alturas, US | daily snow depth | 5.1 cm (2.0 in) | 2.6 cm (1.0 in) | 28 years | 20 of 100 (Routine) |
| 2 November 2022 | Alturas, US | daily snowfall | 6.4 cm (2.5 in) | 1.3 cm (0.5 in) | 28 years | 20 of 100 (Routine) |
| 1 November 2022 | Alturas, US | daily snow depth | 2.5 cm (1.0 in) | 2.5 cm (1.0 in) | 91 years | 20 of 100 (Routine) |
| 20 October 2022 | Alturas, US | daily high max | 30.0 C (86.0 F) | 0.6 C (1.1 F) | 107 years | 40 of 100 (Notable) |
| 1 August 2022 | Alturas, US | all-time high max (Tie) | 42.2 C (108.0 F) | tie | 15 years | 8 of 100 (Routine) |
| 27 July 2022 | Alturas, US | daily high max | 40.6 C (105.1 F) | 1.7 C (3.1 F) | 88 years | 40 of 100 (Notable) |
| 29 June 2022 | Alturas, US | daily high max | 36.7 C (98.1 F) | 1.1 C (2.0 F) | 19 years | 16 of 100 (Routine) |
| 7 November 2019 | Alturas, US | daily high max | 23.9 C (75.0 F) | 0.6 C (1.1 F) | 69 years | 31 of 100 (Routine) |
| 21 March 2018 | Alturas, US | daily high min (Tie) | 2.8 C (37.0 F) | tie | 0 years | 2 of 100 (Routine) |
| 23 February 2018 | Alturas, US | daily low max | -0.6 C (30.9 F) | 0.6 C (1.1 F) | 44 years | 24 of 100 (Routine) |
| 22 February 2018 | Alturas, US | daily low max | -0.6 C (30.9 F) | 0.6 C (1.1 F) | 76 years | 33 of 100 (Routine) |
Climate Trend
76 complete years, 1907 to 2004| Year | Annual mean temperature | Difference from the station mean |
|---|---|---|
| 1907 | 8.7 C | +0.61 C |
| 1908 | 8.4 C | +0.30 C |
| 1909 | 8.2 C | +0.06 C |
| 1910 | 8.7 C | +0.57 C |
| 1911 | 7.0 C | -1.11 C |
| 1912 | 7.9 C | -0.23 C |
| 1913 | 7.7 C | -0.43 C |
| 1914 | 9.4 C | +1.26 C |
| 1915 | 9.1 C | +1.02 C |
| 1916 | 7.7 C | -0.45 C |
| 1917 | 7.3 C | -0.80 C |
| 1918 | 8.7 C | +0.57 C |
| 1932 | 6.5 C | -1.65 C |
| 1933 | 7.6 C | -0.52 C |
| 1935 | 8.0 C | -0.08 C |
| 1936 | 8.9 C | +0.75 C |
| 1938 | 8.2 C | +0.07 C |
| 1939 | 8.5 C | +0.40 C |
| 1943 | 7.8 C | -0.31 C |
| 1944 | 7.3 C | -0.85 C |
| 1945 | 8.2 C | +0.05 C |
| 1946 | 8.0 C | -0.15 C |
| 1947 | 8.5 C | +0.34 C |
| 1948 | 6.6 C | -1.52 C |
| 1949 | 7.0 C | -1.13 C |
| 1950 | 8.9 C | +0.74 C |
| 1951 | 8.4 C | +0.25 C |
| 1952 | 8.1 C | -0.06 C |
| 1953 | 8.4 C | +0.28 C |
| 1954 | 8.8 C | +0.65 C |
| 1955 | 7.5 C | -0.65 C |
| 1956 | 8.4 C | +0.27 C |
| 1957 | 8.2 C | +0.11 C |
| 1958 | 9.9 C | +1.83 C |
| 1959 | 8.8 C | +0.67 C |
| 1960 | 8.8 C | +0.68 C |
| 1961 | 9.2 C | +1.06 C |
| 1962 | 8.6 C | +0.45 C |
| 1963 | 8.8 C | +0.65 C |
| 1964 | 7.5 C | -0.62 C |
| 1965 | 8.1 C | +0.02 C |
| 1966 | 9.0 C | +0.85 C |
| 1967 | 8.4 C | +0.25 C |
| 1968 | 8.5 C | +0.39 C |
| 1969 | 8.4 C | +0.25 C |
| 1970 | 7.9 C | -0.22 C |
| 1971 | 6.9 C | -1.18 C |
| 1972 | 7.4 C | -0.72 C |
| 1975 | 6.6 C | -1.53 C |
| 1977 | 7.1 C | -1.03 C |
| 1978 | 7.5 C | -0.62 C |
| 1979 | 7.7 C | -0.44 C |
| 1980 | 8.2 C | +0.10 C |
| 1981 | 8.7 C | +0.61 C |
| 1982 | 6.6 C | -1.55 C |
| 1983 | 7.9 C | -0.25 C |
| 1984 | 7.4 C | -0.70 C |
| 1985 | 6.8 C | -1.31 C |
| 1986 | 8.9 C | +0.81 C |
| 1987 | 8.6 C | +0.53 C |
| 1988 | 8.3 C | +0.17 C |
| 1989 | 6.9 C | -1.25 C |
| 1990 | 7.6 C | -0.53 C |
| 1991 | 7.9 C | -0.23 C |
| 1992 | 9.0 C | +0.88 C |
| 1993 | 6.9 C | -1.20 C |
| 1994 | 8.0 C | -0.11 C |
| 1995 | 8.9 C | +0.76 C |
| 1996 | 9.1 C | +1.01 C |
| 1997 | 8.5 C | +0.35 C |
| 1998 | 8.1 C | +0.03 C |
| 1999 | 8.1 C | +0.00 C |
| 2000 | 8.6 C | +0.49 C |
| 2001 | 8.8 C | +0.67 C |
| 2002 | 8.9 C | +0.78 C |
| 2004 | 8.6 C | +0.46 C |
The fitted trend in annual mean temperature here over 1907 to 2004 is 0.00 C (-0.06 to 0.06) per decade. The interval includes zero, so the trend is not clearly different from zero. In Fahrenheit: 0.00 F (-0.11 to 0.11) per decade. The slope is a straight line fitted to 76 complete years; the brackets give its 95 percent interval.
| Measure | Per decade (C) | Per decade (F) | Period | Complete years | Reading |
|---|---|---|---|---|---|
| Annual mean temperature | 0.00 C (-0.06 to 0.06) per decade | 0.00 F (-0.11 to 0.11) per decade | 1907 to 2004 | 76 | Not clearly different from zero |
| Mean daily maximum | -0.01 C (-0.10 to 0.08) per decade | -0.02 F (-0.18 to 0.14) per decade | 1907 to 2004 | 76 | Not clearly different from zero |
| Mean daily minimum | 0.01 C (-0.06 to 0.07) per decade | 0.01 F (-0.11 to 0.13) per decade | 1907 to 2004 | 76 | Not clearly different from zero |
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
1905 to 2023| Measure | Record | Year of the record | Median year | Years with a value |
|---|---|---|---|---|
| Hottest day (TXx) | 42.2 C (108.0 F) | 2007 | 37.8 C (100.0 F) | 106 |
| Coldest night (TNn) | -36.7 C (-34.1 F) | 1972 | -22.8 C (-9.0 F) | 106 |
| Wettest day (Rx1day) | 89.2 mm (3.5 in) | 1937 | 23.1 mm (0.9 in) | 106 |
| Wettest five days (Rx5day) | 146.6 mm (5.8 in) | 1962 | 37.7 mm (1.5 in) | 104 |
| Longest dry spell (CDD) | 148 days | 1994 | 52 days | 106 |
Hottest day (TXx)
| Year | Hottest day (TXx) |
|---|---|
| 1905 | 41.7 C (107.1 F) |
| 1906 | 36.7 C (98.1 F) |
| 1907 | 35.6 C (96.1 F) |
| 1908 | 40.6 C (105.1 F) |
| 1909 | 37.8 C (100.0 F) |
| 1910 | 37.8 C (100.0 F) |
| 1911 | 38.3 C (100.9 F) |
| 1912 | 37.2 C (99.0 F) |
| 1913 | 36.1 C (97.0 F) |
| 1914 | 38.9 C (102.0 F) |
| 1915 | 39.4 C (102.9 F) |
| 1916 | 37.2 C (99.0 F) |
| 1917 | 40.0 C (104.0 F) |
| 1918 | 36.7 C (98.1 F) |
| 1919 | 39.4 C (102.9 F) |
| 1931 | 38.9 C (102.0 F) |
| 1932 | 36.1 C (97.0 F) |
| 1933 | 38.9 C (102.0 F) |
| 1934 | 38.9 C (102.0 F) |
| 1935 | 38.9 C (102.0 F) |
| 1936 | 38.3 C (100.9 F) |
| 1937 | 37.8 C (100.0 F) |
| 1938 | 36.1 C (97.0 F) |
| 1939 | 37.2 C (99.0 F) |
| 1940 | 36.1 C (97.0 F) |
| 1941 | 34.4 C (93.9 F) |
| 1942 | 35.6 C (96.1 F) |
| 1943 | 33.9 C (93.0 F) |
| 1944 | 34.4 C (93.9 F) |
| 1945 | 37.2 C (99.0 F) |
| 1946 | 38.9 C (102.0 F) |
| 1947 | 34.4 C (93.9 F) |
| 1948 | 33.3 C (91.9 F) |
| 1949 | 35.0 C (95.0 F) |
| 1950 | 37.8 C (100.0 F) |
| 1951 | 37.2 C (99.0 F) |
| 1952 | 37.2 C (99.0 F) |
| 1953 | 36.1 C (97.0 F) |
| 1954 | 37.8 C (100.0 F) |
| 1955 | 41.1 C (106.0 F) |
| 1956 | 37.8 C (100.0 F) |
| 1957 | 36.1 C (97.0 F) |
| 1958 | 37.8 C (100.0 F) |
| 1959 | 38.9 C (102.0 F) |
| 1960 | 41.7 C (107.1 F) |
| 1961 | 41.1 C (106.0 F) |
| 1962 | 38.3 C (100.9 F) |
| 1963 | 37.2 C (99.0 F) |
| 1964 | 37.8 C (100.0 F) |
| 1965 | 35.6 C (96.1 F) |
| 1966 | 40.0 C (104.0 F) |
| 1967 | 40.6 C (105.1 F) |
| 1968 | 40.0 C (104.0 F) |
| 1969 | 38.3 C (100.9 F) |
| 1970 | 36.1 C (97.0 F) |
| 1971 | 38.3 C (100.9 F) |
| 1972 | 40.0 C (104.0 F) |
| 1973 | 36.7 C (98.1 F) |
| 1974 | 36.1 C (97.0 F) |
| 1975 | 38.3 C (100.9 F) |
| 1976 | 36.1 C (97.0 F) |
| 1977 | 37.2 C (99.0 F) |
| 1978 | 38.3 C (100.9 F) |
| 1979 | 37.8 C (100.0 F) |
| 1980 | 38.3 C (100.9 F) |
| 1981 | 39.4 C (102.9 F) |
| 1982 | 35.6 C (96.1 F) |
| 1983 | 40.0 C (104.0 F) |
| 1984 | 37.8 C (100.0 F) |
| 1985 | 37.8 C (100.0 F) |
| 1986 | 36.1 C (97.0 F) |
| 1987 | 37.8 C (100.0 F) |
| 1988 | 40.0 C (104.0 F) |
| 1989 | 35.6 C (96.1 F) |
| 1990 | 38.3 C (100.9 F) |
| 1991 | 36.1 C (97.0 F) |
| 1992 | 40.0 C (104.0 F) |
| 1993 | 36.1 C (97.0 F) |
| 1994 | 38.3 C (100.9 F) |
| 1995 | 35.0 C (95.0 F) |
| 1996 | 37.8 C (100.0 F) |
| 1997 | 38.3 C (100.9 F) |
| 1998 | 38.9 C (102.0 F) |
| 1999 | 38.3 C (100.9 F) |
| 2000 | 37.2 C (99.0 F) |
| 2001 | 38.3 C (100.9 F) |
| 2002 | 41.7 C (107.1 F) |
| 2003 | 40.6 C (105.1 F) |
| 2004 | 37.2 C (99.0 F) |
| 2005 | 38.9 C (102.0 F) |
| 2006 | 39.4 C (102.9 F) |
| 2007 | 42.2 C (108.0 F) |
| 2008 | 38.9 C (102.0 F) |
| 2009 | 38.3 C (100.9 F) |
| 2010 | 36.7 C (98.1 F) |
| 2011 | 35.0 C (95.0 F) |
| 2012 | 36.7 C (98.1 F) |
| 2013 | 36.1 C (97.0 F) |
| 2014 | 39.4 C (102.9 F) |
| 2015 | 38.3 C (100.9 F) |
| 2016 | 38.3 C (100.9 F) |
| 2017 | 37.8 C (100.0 F) |
| 2018 | 20.0 C (68.0 F) |
| 2019 | 23.9 C (75.0 F) |
| 2022 | 42.2 C (108.0 F) |
| 2023 | 10.0 C (50.0 F) |
Coldest night (TNn)
| Year | Coldest night (TNn) |
|---|---|
| 1905 | -22.8 C (-9.0 F) |
| 1906 | -21.7 C (-7.1 F) |
| 1907 | -22.2 C (-8.0 F) |
| 1908 | -30.6 C (-23.1 F) |
| 1909 | -29.4 C (-20.9 F) |
| 1910 | -34.4 C (-29.9 F) |
| 1911 | -29.4 C (-20.9 F) |
| 1912 | -32.2 C (-26.0 F) |
| 1913 | -29.4 C (-20.9 F) |
| 1914 | -22.8 C (-9.0 F) |
| 1915 | -23.3 C (-9.9 F) |
| 1916 | -27.8 C (-18.0 F) |
| 1917 | -35.6 C (-32.1 F) |
| 1918 | -26.1 C (-15.0 F) |
| 1919 | -27.8 C (-18.0 F) |
| 1931 | -21.1 C (-6.0 F) |
| 1932 | -31.7 C (-25.1 F) |
| 1933 | -30.0 C (-22.0 F) |
| 1934 | -16.1 C (3.0 F) |
| 1935 | -17.2 C (1.0 F) |
| 1936 | -16.7 C (1.9 F) |
| 1937 | -35.6 C (-32.1 F) |
| 1938 | -27.2 C (-17.0 F) |
| 1939 | -25.6 C (-14.1 F) |
| 1940 | -13.9 C (7.0 F) |
| 1941 | -22.2 C (-8.0 F) |
| 1942 | -25.0 C (-13.0 F) |
| 1943 | -19.4 C (-2.9 F) |
| 1944 | -20.6 C (-5.1 F) |
| 1945 | -20.6 C (-5.1 F) |
| 1946 | -20.6 C (-5.1 F) |
| 1947 | -21.7 C (-7.1 F) |
| 1948 | -26.1 C (-15.0 F) |
| 1949 | -35.0 C (-31.0 F) |
| 1950 | -26.7 C (-16.1 F) |
| 1951 | -20.6 C (-5.1 F) |
| 1952 | -26.7 C (-16.1 F) |
| 1953 | -12.8 C (9.0 F) |
| 1954 | -18.9 C (-2.0 F) |
| 1955 | -23.3 C (-9.9 F) |
| 1956 | -27.8 C (-18.0 F) |
| 1957 | -29.4 C (-20.9 F) |
| 1958 | -18.3 C (-0.9 F) |
| 1959 | -23.3 C (-9.9 F) |
| 1960 | -26.1 C (-15.0 F) |
| 1961 | -19.4 C (-2.9 F) |
| 1962 | -31.1 C (-24.0 F) |
| 1963 | -22.8 C (-9.0 F) |
| 1964 | -18.9 C (-2.0 F) |
| 1965 | -23.3 C (-9.9 F) |
| 1966 | -20.6 C (-5.1 F) |
| 1967 | -26.7 C (-16.1 F) |
| 1968 | -28.9 C (-20.0 F) |
| 1969 | -21.7 C (-7.1 F) |
| 1970 | -24.4 C (-11.9 F) |
| 1971 | -22.8 C (-9.0 F) |
| 1972 | -36.7 C (-34.1 F) |
| 1973 | -21.7 C (-7.1 F) |
| 1974 | -29.4 C (-20.9 F) |
| 1975 | -21.7 C (-7.1 F) |
| 1976 | -20.6 C (-5.1 F) |
| 1977 | -31.7 C (-25.1 F) |
| 1978 | -25.6 C (-14.1 F) |
| 1979 | -26.7 C (-16.1 F) |
| 1980 | -18.3 C (-0.9 F) |
| 1981 | -19.4 C (-2.9 F) |
| 1982 | -21.7 C (-7.1 F) |
| 1983 | -21.1 C (-6.0 F) |
| 1984 | -17.8 C (0.0 F) |
| 1985 | -30.6 C (-23.1 F) |
| 1986 | -12.2 C (10.0 F) |
| 1987 | -22.2 C (-8.0 F) |
| 1988 | -27.2 C (-17.0 F) |
| 1989 | -36.1 C (-33.0 F) |
| 1990 | -31.7 C (-25.1 F) |
| 1991 | -22.8 C (-9.0 F) |
| 1992 | -22.8 C (-9.0 F) |
| 1993 | -24.4 C (-11.9 F) |
| 1994 | -21.1 C (-6.0 F) |
| 1995 | -21.1 C (-6.0 F) |
| 1996 | -19.4 C (-2.9 F) |
| 1997 | -22.8 C (-9.0 F) |
| 1998 | -26.1 C (-15.0 F) |
| 1999 | -18.9 C (-2.0 F) |
| 2000 | -17.8 C (0.0 F) |
| 2001 | -19.4 C (-2.9 F) |
| 2002 | -20.0 C (-4.0 F) |
| 2003 | -15.0 C (5.0 F) |
| 2004 | -21.1 C (-6.0 F) |
| 2005 | -24.4 C (-11.9 F) |
| 2006 | -20.6 C (-5.1 F) |
| 2007 | -23.3 C (-9.9 F) |
| 2008 | -25.6 C (-14.1 F) |
| 2009 | -22.8 C (-9.0 F) |
| 2010 | -21.1 C (-6.0 F) |
| 2011 | -19.4 C (-2.9 F) |
| 2012 | -19.4 C (-2.9 F) |
| 2013 | -26.1 C (-15.0 F) |
| 2014 | -15.6 C (3.9 F) |
| 2015 | -15.0 C (5.0 F) |
| 2016 | -15.6 C (3.9 F) |
| 2017 | -29.4 C (-20.9 F) |
| 2018 | -16.7 C (1.9 F) |
| 2019 | -6.7 C (19.9 F) |
| 2022 | -16.7 C (1.9 F) |
| 2023 | -20.6 C (-5.1 F) |
Wettest day (Rx1day)
| Year | Wettest day (Rx1day) |
|---|---|
| 1905 | 11.2 mm (0.4 in) |
| 1906 | 23.9 mm (0.9 in) |
| 1907 | 23.1 mm (0.9 in) |
| 1908 | 18.8 mm (0.7 in) |
| 1909 | 24.1 mm (0.9 in) |
| 1910 | 47.8 mm (1.9 in) |
| 1911 | 21.8 mm (0.9 in) |
| 1912 | 15.2 mm (0.6 in) |
| 1913 | 50.8 mm (2.0 in) |
| 1914 | 14.2 mm (0.6 in) |
| 1915 | 13.7 mm (0.5 in) |
| 1916 | 36.6 mm (1.4 in) |
| 1917 | 19.8 mm (0.8 in) |
| 1918 | 26.7 mm (1.1 in) |
| 1919 | 24.6 mm (1.0 in) |
| 1931 | 33.0 mm (1.3 in) |
| 1932 | 16.5 mm (0.6 in) |
| 1933 | 17.8 mm (0.7 in) |
| 1934 | 35.1 mm (1.4 in) |
| 1935 | 33.0 mm (1.3 in) |
| 1936 | 54.4 mm (2.1 in) |
| 1937 | 89.2 mm (3.5 in) |
| 1938 | 26.7 mm (1.1 in) |
| 1939 | 21.8 mm (0.9 in) |
| 1940 | 16.5 mm (0.6 in) |
| 1941 | 26.7 mm (1.1 in) |
| 1942 | 15.7 mm (0.6 in) |
| 1943 | 51.3 mm (2.0 in) |
| 1944 | 23.9 mm (0.9 in) |
| 1945 | 39.6 mm (1.6 in) |
| 1946 | 33.8 mm (1.3 in) |
| 1947 | 16.8 mm (0.7 in) |
| 1948 | 23.6 mm (0.9 in) |
| 1949 | 32.3 mm (1.3 in) |
| 1950 | 23.6 mm (0.9 in) |
| 1951 | 15.2 mm (0.6 in) |
| 1952 | 32.3 mm (1.3 in) |
| 1953 | 17.5 mm (0.7 in) |
| 1954 | 15.2 mm (0.6 in) |
| 1955 | 20.3 mm (0.8 in) |
| 1956 | 25.4 mm (1.0 in) |
| 1957 | 33.5 mm (1.3 in) |
| 1958 | 25.9 mm (1.0 in) |
| 1959 | 16.3 mm (0.6 in) |
| 1960 | 18.8 mm (0.7 in) |
| 1961 | 17.8 mm (0.7 in) |
| 1962 | 44.5 mm (1.8 in) |
| 1963 | 17.0 mm (0.7 in) |
| 1964 | 27.7 mm (1.1 in) |
| 1965 | 26.7 mm (1.1 in) |
| 1966 | 16.0 mm (0.6 in) |
| 1967 | 46.0 mm (1.8 in) |
| 1968 | 23.1 mm (0.9 in) |
| 1969 | 22.9 mm (0.9 in) |
| 1970 | 29.5 mm (1.2 in) |
| 1971 | 25.4 mm (1.0 in) |
| 1972 | 23.1 mm (0.9 in) |
| 1973 | 20.1 mm (0.8 in) |
| 1974 | 16.0 mm (0.6 in) |
| 1975 | 21.6 mm (0.9 in) |
| 1976 | 25.4 mm (1.0 in) |
| 1977 | 22.1 mm (0.9 in) |
| 1978 | 26.4 mm (1.0 in) |
| 1979 | 28.4 mm (1.1 in) |
| 1980 | 30.5 mm (1.2 in) |
| 1981 | 27.4 mm (1.1 in) |
| 1982 | 21.6 mm (0.9 in) |
| 1983 | 22.6 mm (0.9 in) |
| 1984 | 20.6 mm (0.8 in) |
| 1985 | 23.1 mm (0.9 in) |
| 1986 | 50.5 mm (2.0 in) |
| 1987 | 18.5 mm (0.7 in) |
| 1988 | 27.2 mm (1.1 in) |
| 1989 | 25.4 mm (1.0 in) |
| 1990 | 21.8 mm (0.9 in) |
| 1991 | 27.7 mm (1.1 in) |
| 1992 | 31.0 mm (1.2 in) |
| 1993 | 29.0 mm (1.1 in) |
| 1994 | 19.1 mm (0.8 in) |
| 1995 | 40.6 mm (1.6 in) |
| 1996 | 30.2 mm (1.2 in) |
| 1997 | 25.1 mm (1.0 in) |
| 1998 | 26.2 mm (1.0 in) |
| 1999 | 28.7 mm (1.1 in) |
| 2000 | 19.1 mm (0.8 in) |
| 2001 | 15.7 mm (0.6 in) |
| 2002 | 23.6 mm (0.9 in) |
| 2003 | 25.9 mm (1.0 in) |
| 2004 | 21.6 mm (0.9 in) |
| 2005 | 15.0 mm (0.6 in) |
| 2006 | 15.7 mm (0.6 in) |
| 2007 | 15.5 mm (0.6 in) |
| 2008 | 30.5 mm (1.2 in) |
| 2009 | 19.1 mm (0.8 in) |
| 2010 | 18.8 mm (0.7 in) |
| 2011 | 23.1 mm (0.9 in) |
| 2012 | 13.0 mm (0.5 in) |
| 2013 | 16.5 mm (0.6 in) |
| 2014 | 13.0 mm (0.5 in) |
| 2015 | 14.7 mm (0.6 in) |
| 2016 | 13.7 mm (0.5 in) |
| 2017 | 25.4 mm (1.0 in) |
| 2018 | 3.3 mm (0.13 in) |
| 2019 | 1.3 mm (0.05 in) |
| 2022 | 13.5 mm (0.5 in) |
| 2023 | 4.1 mm (0.16 in) |
Wettest five days (Rx5day)
| Year | Wettest five days (Rx5day) |
|---|---|
| 1905 | 18.8 mm (0.7 in) |
| 1906 | 64.5 mm (2.5 in) |
| 1907 | 42.5 mm (1.7 in) |
| 1908 | 29.3 mm (1.2 in) |
| 1909 | 54.3 mm (2.1 in) |
| 1910 | 48.3 mm (1.9 in) |
| 1911 | 46.1 mm (1.8 in) |
| 1912 | 26.2 mm (1.0 in) |
| 1913 | 61.0 mm (2.4 in) |
| 1914 | 41.1 mm (1.6 in) |
| 1915 | 26.4 mm (1.0 in) |
| 1916 | 39.7 mm (1.6 in) |
| 1917 | 59.0 mm (2.3 in) |
| 1918 | 39.1 mm (1.5 in) |
| 1919 | 43.9 mm (1.7 in) |
| 1931 | 88.3 mm (3.5 in) |
| 1932 | 30.4 mm (1.2 in) |
| 1933 | 42.9 mm (1.7 in) |
| 1934 | 43.2 mm (1.7 in) |
| 1935 | 46.7 mm (1.8 in) |
| 1936 | 30.5 mm (1.2 in) |
| 1937 | 133.2 mm (5.2 in) |
| 1938 | 53.6 mm (2.1 in) |
| 1939 | 23.6 mm (0.9 in) |
| 1940 | 34.4 mm (1.4 in) |
| 1941 | 37.6 mm (1.5 in) |
| 1942 | 38.2 mm (1.5 in) |
| 1943 | 78.4 mm (3.1 in) |
| 1944 | 37.8 mm (1.5 in) |
| 1945 | 57.9 mm (2.3 in) |
| 1946 | 41.7 mm (1.6 in) |
| 1947 | 28.4 mm (1.1 in) |
| 1948 | 38.5 mm (1.5 in) |
| 1949 | 36.9 mm (1.5 in) |
| 1950 | 33.5 mm (1.3 in) |
| 1951 | 31.7 mm (1.2 in) |
| 1952 | 43.1 mm (1.7 in) |
| 1953 | 37.1 mm (1.5 in) |
| 1954 | 25.5 mm (1.0 in) |
| 1955 | 50.9 mm (2.0 in) |
| 1956 | 31.3 mm (1.2 in) |
| 1957 | 51.3 mm (2.0 in) |
| 1958 | 28.2 mm (1.1 in) |
| 1959 | 22.9 mm (0.9 in) |
| 1960 | 36.8 mm (1.4 in) |
| 1961 | 29.2 mm (1.1 in) |
| 1962 | 146.6 mm (5.8 in) |
| 1963 | 41.3 mm (1.6 in) |
| 1964 | 57.7 mm (2.3 in) |
| 1965 | 52.5 mm (2.1 in) |
| 1966 | 25.9 mm (1.0 in) |
| 1967 | 50.0 mm (2.0 in) |
| 1968 | 43.2 mm (1.7 in) |
| 1969 | 56.9 mm (2.2 in) |
| 1970 | 43.5 mm (1.7 in) |
| 1971 | 62.5 mm (2.5 in) |
| 1972 | 41.4 mm (1.6 in) |
| 1973 | 24.4 mm (1.0 in) |
| 1974 | 28.7 mm (1.1 in) |
| 1975 | 30.3 mm (1.2 in) |
| 1976 | 49.8 mm (2.0 in) |
| 1977 | 34.5 mm (1.4 in) |
| 1978 | 31.5 mm (1.2 in) |
| 1979 | 33.5 mm (1.3 in) |
| 1980 | 73.6 mm (2.9 in) |
| 1981 | 50.8 mm (2.0 in) |
| 1982 | 33.9 mm (1.3 in) |
| 1983 | 34.2 mm (1.3 in) |
| 1984 | 23.8 mm (0.9 in) |
| 1985 | 41.6 mm (1.6 in) |
| 1986 | 112.3 mm (4.4 in) |
| 1987 | 30.5 mm (1.2 in) |
| 1988 | 37.3 mm (1.5 in) |
| 1989 | 29.2 mm (1.1 in) |
| 1990 | 31.2 mm (1.2 in) |
| 1991 | 56.9 mm (2.2 in) |
| 1992 | 52.9 mm (2.1 in) |
| 1993 | 39.1 mm (1.5 in) |
| 1994 | 31.5 mm (1.2 in) |
| 1995 | 70.3 mm (2.8 in) |
| 1996 | 54.5 mm (2.1 in) |
| 1997 | 56.9 mm (2.2 in) |
| 1998 | 42.0 mm (1.7 in) |
| 1999 | 37.6 mm (1.5 in) |
| 2000 | 33.3 mm (1.3 in) |
| 2001 | 44.1 mm (1.7 in) |
| 2002 | 32.8 mm (1.3 in) |
| 2003 | 29.4 mm (1.2 in) |
| 2004 | 42.4 mm (1.7 in) |
| 2005 | 36.8 mm (1.4 in) |
| 2006 | 39.0 mm (1.5 in) |
| 2007 | 28.9 mm (1.1 in) |
| 2008 | 42.5 mm (1.7 in) |
| 2009 | 28.4 mm (1.1 in) |
| 2010 | 26.2 mm (1.0 in) |
| 2011 | 16.0 mm (0.6 in) |
| 2012 | 19.7 mm (0.8 in) |
| 2013 | 20.6 mm (0.8 in) |
| 2014 | 24.9 mm (1.0 in) |
| 2015 | 37.3 mm (1.5 in) |
| 2016 | 16.0 mm (0.6 in) |
| 2017 | 25.4 mm (1.0 in) |
| 2018 | 4.8 mm (0.19 in) |
| 2019 | n/a |
| 2022 | 0.0 mm (0.00 in) |
| 2023 | n/a |
Longest dry spell (CDD)
| Year | Longest dry spell (CDD) |
|---|---|
| 1905 | 114 days |
| 1906 | 44 days |
| 1907 | 45 days |
| 1908 | 37 days |
| 1909 | 56 days |
| 1910 | 57 days |
| 1911 | 48 days |
| 1912 | 45 days |
| 1913 | 28 days |
| 1914 | 42 days |
| 1915 | 39 days |
| 1916 | 34 days |
| 1917 | 67 days |
| 1918 | 68 days |
| 1919 | 133 days |
| 1931 | 80 days |
| 1932 | 133 days |
| 1933 | 39 days |
| 1934 | 75 days |
| 1935 | 52 days |
| 1936 | 93 days |
| 1937 | 57 days |
| 1938 | 41 days |
| 1939 | 45 days |
| 1940 | 93 days |
| 1941 | 26 days |
| 1942 | 61 days |
| 1943 | 72 days |
| 1944 | 56 days |
| 1945 | 73 days |
| 1946 | 36 days |
| 1947 | 65 days |
| 1948 | 79 days |
| 1949 | 30 days |
| 1950 | 41 days |
| 1951 | 79 days |
| 1952 | 40 days |
| 1953 | 50 days |
| 1954 | 35 days |
| 1955 | 61 days |
| 1956 | 32 days |
| 1957 | 110 days |
| 1958 | 24 days |
| 1959 | 51 days |
| 1960 | 45 days |
| 1961 | 54 days |
| 1962 | 67 days |
| 1963 | 29 days |
| 1964 | 48 days |
| 1965 | 43 days |
| 1966 | 47 days |
| 1967 | 39 days |
| 1968 | 56 days |
| 1969 | 83 days |
| 1970 | 82 days |
| 1971 | 47 days |
| 1972 | 52 days |
| 1973 | 117 days |
| 1974 | 72 days |
| 1975 | 45 days |
| 1976 | 58 days |
| 1977 | 48 days |
| 1978 | 47 days |
| 1979 | 45 days |
| 1980 | 42 days |
| 1981 | 103 days |
| 1982 | 47 days |
| 1983 | 68 days |
| 1984 | 69 days |
| 1985 | 43 days |
| 1986 | 52 days |
| 1987 | 98 days |
| 1988 | 94 days |
| 1989 | 63 days |
| 1990 | 59 days |
| 1991 | 67 days |
| 1992 | 92 days |
| 1993 | 46 days |
| 1994 | 148 days |
| 1995 | 67 days |
| 1996 | 33 days |
| 1997 | 20 days |
| 1998 | 40 days |
| 1999 | 37 days |
| 2000 | 57 days |
| 2001 | 62 days |
| 2002 | 129 days |
| 2003 | 54 days |
| 2004 | 46 days |
| 2005 | 92 days |
| 2006 | 54 days |
| 2007 | 40 days |
| 2008 | 57 days |
| 2009 | 67 days |
| 2010 | 62 days |
| 2011 | 73 days |
| 2012 | 61 days |
| 2013 | 54 days |
| 2014 | 36 days |
| 2015 | 13 days |
| 2016 | 5 days |
| 2017 | 25 days |
| 2018 | 14 days |
| 2019 | 4 days |
| 2022 | 5 days |
| 2023 | 2 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
76 years with a frostAcross 76 years with a frost, the median last spring frost at Alturas falls on 18 June and the median first autumn frost on 22 August, which leaves a median of 68 days between them.
In 1971 to 2004 the median growing season was 57 days. That is 18 days fewer than in 1907 to 1954.
Fitted over all years, the growing season changes by -1.2 days per decade at this station.
| Measure | Median, all years | Earliest period (1907 to 1954) | Recent period (1971 to 2004) | Recent against earliest | Fitted trend |
|---|---|---|---|---|---|
| Last spring frost | 18 June | 18 June | 21 June | 3 days later | -0.1 days per decade |
| First autumn frost | 22 August | 25 August | 17 August | 8 days earlier | -1.3 days per decade |
| Growing days | 68 days | 75 days | 57 days | 18 days fewer | -1.2 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
90 years, 1906 to 2013A day with at least 23.2 mm (0.9 in) of rain is expected about once in 2 years. A day with at least 69.9 mm (2.8 in) of rain is expected about once in 100 years.
| Expected about once in | A day with at least | Note |
|---|---|---|
| 2 years | 23.2 mm (0.9 in) | |
| 5 years | 31.8 mm (1.3 in) | |
| 10 years | 38.8 mm (1.5 in) | |
| 25 years | 49.5 mm (1.9 in) | |
| 50 years | 58.9 mm (2.3 in) | |
| 100 years | 69.9 mm (2.8 in) | Longer than the 90 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, 90 years of values from 1906 to 2013.
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: 89.2 mm (3.5 in) in 1937; 54.4 mm (2.1 in) in 1936; 51.3 mm (2.0 in) in 1943.
Station Changes
2 suspected2 changes were suspected in the annual mean temperature of Alturas, at 1970 and 1995. Each is measured against neighbouring stations.
- Relative to 5 neighbouring stations, the station's annual mean temperature from 1970 ran 0.7 C (1.2 F) lower than in the years before (likely change).
- Relative to 5 neighbouring stations, the station's annual mean temperature from 1995 ran 0.4 C (0.7 F) higher than in the years before (possible change).
| Year | Shift (C) | Shift (F) | Strength | Neighbours |
|---|---|---|---|---|
| 1970 | -0.6 | -1.2 | likely | 5 |
| 1995 | +0.4 | +0.7 | 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 2026-10-17 (17 October 2026). Records are computed by this site and are not official.
Data as of . Last revised (2025-12-31).