Oakland Weather Records (USC00046332)
Record envelope, standing records and threshold days for Oakland (USC00046332), California, United States, with 65 years of record.
Key Facts for Oakland
- Oakland (USC00046332) is a weather station in California, United States at 37.78 latitude and -122.17 longitude, 134 m (440 ft) above sea level.
- The station reports from 1894 to 1958, 65 years of record.
- 1,464 records set at Oakland still stand.
- Records are tracked for tmax, tmin, prcp: an element needs 30 years of data to be eligible.
- Oakland set a daily record precipitation of 0.5 mm (0.02 in) on 16 July 1958.
About the Station
- Location: California, United States, 37.78 latitude, -122.17 longitude.
- Elevation: 134 m (440 ft).
- Period of record: 1894 to 1958, 65 years.
- Eligible elements: tmax, tmin, prcp.
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 | 25.0 C (77.0 F) | -4.4 C (24.1 F) | n/a | n/a |
| Feb | 25.6 C (78.1 F) | -2.2 C (28.0 F) | n/a | n/a |
| Mar | 30.6 C (87.1 F) | -1.1 C (30.0 F) | n/a | n/a |
| Apr | 32.2 C (90.0 F) | 1.7 C (35.1 F) | n/a | n/a |
| May | 36.1 C (97.0 F) | 3.3 C (37.9 F) | n/a | n/a |
| Jun | 40.0 C (104.0 F) | 5.0 C (41.0 F) | n/a | n/a |
| Jul | 38.9 C (102.0 F) | 8.3 C (46.9 F) | n/a | n/a |
| Aug | 37.2 C (99.0 F) | 6.7 C (44.1 F) | n/a | n/a |
| Sep | 39.4 C (102.9 F) | 5.6 C (42.1 F) | n/a | n/a |
| Oct | 36.7 C (98.1 F) | 2.2 C (36.0 F) | n/a | n/a |
| Nov | 28.9 C (84.0 F) | -1.1 C (30.0 F) | n/a | n/a |
| Dec | 22.8 C (73.0 F) | -3.9 C (25.0 F) | n/a | n/a |
Which Years Hold Standing Records
1,464 standing records| Year set | Standing records |
|---|---|
| 1895 | 4 |
| 1896 | 4 |
| 1897 | 22 |
| 1898 | 14 |
| 1899 | 24 |
| 1900 | 5 |
| 1901 | 19 |
| 1902 | 7 |
| 1903 | 14 |
| 1904 | 18 |
| 1905 | 8 |
| 1906 | 15 |
| 1907 | 9 |
| 1908 | 8 |
| 1909 | 13 |
| 1910 | 16 |
| 1911 | 21 |
| 1912 | 12 |
| 1913 | 22 |
| 1914 | 19 |
| 1915 | 12 |
| 1916 | 29 |
| 1917 | 44 |
| 1918 | 15 |
| 1919 | 28 |
| 1920 | 29 |
| 1921 | 37 |
| 1922 | 36 |
| 1923 | 30 |
| 1924 | 33 |
| 1925 | 20 |
| 1926 | 29 |
| 1927 | 20 |
| 1928 | 15 |
| 1929 | 28 |
| 1930 | 18 |
| 1931 | 29 |
| 1932 | 26 |
| 1933 | 23 |
| 1934 | 19 |
| 1935 | 26 |
| 1936 | 20 |
| 1937 | 30 |
| 1938 | 9 |
| 1939 | 30 |
| 1940 | 4 |
| 1942 | 19 |
| 1943 | 26 |
| 1944 | 36 |
| 1945 | 41 |
| 1946 | 33 |
| 1947 | 27 |
| 1948 | 24 |
| 1949 | 41 |
| 1950 | 41 |
| 1951 | 22 |
| 1952 | 28 |
| 1953 | 46 |
| 1954 | 33 |
| 1955 | 63 |
| 1956 | 43 |
| 1957 | 23 |
| 1958 | 5 |
All-Time Record Progression
6 new records| Date | Kind | Detail |
|---|---|---|
| 1932-12-11 | Record low maximum temperature | Record low maximum temperature 1.1 C (34.0 F) |
| 1932-12-11 | Record low minimum temperature | Record low minimum temperature -3.9 C (25.0 F) |
| 1944-09-09 | Record high maximum temperature | Record high maximum temperature 38.9 C (102.0 F) |
| 1949-01-05 | Record low minimum temperature | Record low minimum temperature -4.4 C (24.1 F) |
| 1950-09-02 | Record high maximum temperature | Record high maximum temperature 39.4 C (102.9 F) |
| 1957-06-24 | Record high maximum temperature | Record high maximum temperature 40.0 C (104.0 F) |
Wettest Day of Each Month
Feb: 108.5 mm (4.3 in)| Month | Record daily precipitation (mm) | Date |
|---|---|---|
| Jan | 84.8 mm (3.3 in) | 3 January 1916 |
| Feb | 108.5 mm (4.3 in) | 12 February 1904 |
| Mar | 93.2 mm (3.7 in) | 22 March 1899 |
| Apr | 57.4 mm (2.3 in) | 1 April 1927 |
| May | 38.9 mm (1.5 in) | 31 May 1899 |
| Jun | 28.7 mm (1.1 in) | 15 June 1929 |
| Jul | 2.3 mm (0.09 in) | 9 July 1919 |
| Aug | 19.6 mm (0.8 in) | 28 August 1916 |
| Sep | 71.9 mm (2.8 in) | 23 September 1904 |
| Oct | 74.7 mm (2.9 in) | 21 October 1899 |
| Nov | 103.6 mm (4.1 in) | 17 November 1942 |
| Dec | 84.3 mm (3.3 in) | 27 December 1931 |
Period of Record Coverage
1894 to 1958| Year | Days with data | Share of year | Complete |
|---|---|---|---|
| 1894 | 1 | 0% | No |
| 1895 | 10 | 3% | No |
| 1896 | 14 | 4% | No |
| 1897 | 277 | 76% | No |
| 1898 | 273 | 75% | No |
| 1899 | 309 | 85% | No |
| 1900 | 365 | 100% | Yes |
| 1901 | 364 | 100% | Yes |
| 1902 | 365 | 100% | Yes |
| 1903 | 364 | 100% | Yes |
| 1904 | 366 | 100% | Yes |
| 1905 | 364 | 100% | Yes |
| 1906 | 334 | 92% | Yes |
| 1907 | 364 | 100% | Yes |
| 1908 | 366 | 100% | Yes |
| 1909 | 365 | 100% | Yes |
| 1910 | 365 | 100% | Yes |
| 1911 | 365 | 100% | Yes |
| 1912 | 357 | 98% | Yes |
| 1913 | 365 | 100% | Yes |
| 1914 | 334 | 92% | Yes |
| 1915 | 365 | 100% | Yes |
| 1916 | 362 | 99% | Yes |
| 1917 | 365 | 100% | Yes |
| 1918 | 347 | 95% | Yes |
| 1919 | 365 | 100% | Yes |
| 1920 | 365 | 100% | Yes |
| 1921 | 365 | 100% | Yes |
| 1922 | 364 | 100% | Yes |
| 1923 | 364 | 100% | Yes |
| 1924 | 365 | 100% | Yes |
| 1925 | 365 | 100% | Yes |
| 1926 | 365 | 100% | Yes |
| 1927 | 365 | 100% | Yes |
| 1928 | 366 | 100% | Yes |
| 1929 | 364 | 100% | Yes |
| 1930 | 334 | 92% | Yes |
| 1931 | 365 | 100% | Yes |
| 1932 | 365 | 100% | Yes |
| 1933 | 364 | 100% | Yes |
| 1934 | 364 | 100% | Yes |
| 1935 | 364 | 100% | Yes |
| 1936 | 366 | 100% | Yes |
| 1937 | 365 | 100% | Yes |
| 1938 | 365 | 100% | Yes |
| 1939 | 365 | 100% | Yes |
| 1940 | 182 | 50% | No |
| 1942 | 364 | 100% | Yes |
| 1943 | 362 | 99% | Yes |
| 1944 | 366 | 100% | Yes |
| 1945 | 363 | 99% | Yes |
| 1946 | 365 | 100% | Yes |
| 1947 | 361 | 99% | Yes |
| 1948 | 362 | 99% | Yes |
| 1949 | 360 | 99% | Yes |
| 1950 | 365 | 100% | Yes |
| 1951 | 364 | 100% | Yes |
| 1952 | 365 | 100% | Yes |
| 1953 | 365 | 100% | Yes |
| 1954 | 364 | 100% | Yes |
| 1955 | 361 | 99% | Yes |
| 1956 | 366 | 100% | Yes |
| 1957 | 322 | 88% | No |
| 1958 | 202 | 55% | No |
Latest Records
20| Date | Station | Record | Value | Beat old record by | Old record stood | Significance |
|---|---|---|---|---|---|---|
| 16 July 1958 | Oakland, US | daily rain | 0.5 mm (0.02 in) | 0.5 mm (0.02 in) | 61 years | 20 of 100 (Routine) |
| 15 July 1958 | Oakland, US | daily low max | 16.1 C (61.0 F) | 1.7 C (3.1 F) | 35 years | 20 of 100 (Routine) |
| 10 July 1958 | Oakland, US | daily low min (Tie) | 9.4 C (48.9 F) | tie | 13 years | 2 of 100 (Routine) |
| 14 June 1958 | Oakland, US | daily high max (Tie) | 30.0 C (86.0 F) | tie | 11 years | 2 of 100 (Routine) |
| 2 June 1958 | Oakland, US | daily rain | 6.6 mm (0.26 in) | 4.3 mm (0.17 in) | 13 years | 18 of 100 (Routine) |
| 22 May 1958 | Oakland, US | daily rain | 11.4 mm (0.4 in) | 6.8 mm (0.27 in) | 45 years | 20 of 100 (Routine) |
| 15 May 1958 | Oakland, US | daily high max | 34.4 C (93.9 F) | 1.6 C (2.9 F) | 1 year | 10 of 100 (Routine) |
| 11 May 1958 | Oakland, US | daily low max (Tie) | 13.9 C (57.0 F) | tie | 16 years | 2 of 100 (Routine) |
| 24 April 1958 | Oakland, US | daily low min (Tie) | 4.4 C (39.9 F) | tie | 13 years | 2 of 100 (Routine) |
| 21 April 1958 | Oakland, US | daily high max | 28.3 C (82.9 F) | 1.1 C (2.0 F) | 4 years | 9 of 100 (Routine) |
| 6 April 1958 | Oakland, US | daily rain | 16.5 mm (0.6 in) | 7.6 mm (0.30 in) | 8 years | 17 of 100 (Routine) |
| 5 April 1958 | Oakland, US | daily low max (Tie) | 12.2 C (54.0 F) | tie | 25 years | 3 of 100 (Routine) |
| 2 April 1958 | Oakland, US | daily rain | 53.1 mm (2.1 in) | 28.2 mm (1.1 in) | 29 years | 47 of 100 (Notable) |
| 20 March 1958 | Oakland, US | daily rain | 10.7 mm (0.4 in) | 1.8 mm (0.07 in) | 12 years | 10 of 100 (Routine) |
| 9 March 1958 | Oakland, US | daily low min | 1.7 C (35.1 F) | 0.5 C (0.9 F) | 23 years | 13 of 100 (Routine) |
| 18 February 1958 | Oakland, US | daily rain | 29.2 mm (1.1 in) | 6.3 mm (0.25 in) | 31 years | 20 of 100 (Routine) |
| 16 February 1958 | Oakland, US | daily high max | 22.8 C (73.0 F) | 0.6 C (1.1 F) | 28 years | 16 of 100 (Routine) |
| 7 February 1958 | Oakland, US | daily rain | 36.6 mm (1.4 in) | 10.2 mm (0.4 in) | 43 years | 26 of 100 (Routine) |
| 24 January 1958 | Oakland, US | daily rain | 51.1 mm (2.0 in) | 5.1 mm (0.20 in) | 47 years | 24 of 100 (Routine) |
| 18 January 1958 | Oakland, US | daily high max (Tie) | 20.6 C (69.1 F) | tie | 38 years | 4 of 100 (Routine) |
Climate Trend
51 complete years, 1900 to 1956| Year | Annual mean temperature | Difference from the station mean |
|---|---|---|
| 1900 | 14.6 C | +0.70 C |
| 1901 | 14.1 C | +0.17 C |
| 1902 | 14.0 C | +0.10 C |
| 1903 | 13.9 C | -0.04 C |
| 1904 | 14.4 C | +0.45 C |
| 1905 | 14.3 C | +0.38 C |
| 1907 | 14.2 C | +0.30 C |
| 1908 | 13.5 C | -0.40 C |
| 1909 | 13.7 C | -0.21 C |
| 1910 | 13.6 C | -0.36 C |
| 1911 | 13.2 C | -0.73 C |
| 1912 | 13.9 C | 0.00 C |
| 1913 | 14.1 C | +0.16 C |
| 1915 | 14.3 C | +0.40 C |
| 1916 | 13.3 C | -0.60 C |
| 1917 | 13.6 C | -0.30 C |
| 1919 | 13.1 C | -0.82 C |
| 1920 | 13.1 C | -0.87 C |
| 1921 | 13.6 C | -0.37 C |
| 1922 | 12.6 C | -1.38 C |
| 1923 | 13.5 C | -0.44 C |
| 1924 | 13.6 C | -0.31 C |
| 1925 | 13.9 C | -0.03 C |
| 1926 | 14.6 C | +0.71 C |
| 1927 | 13.6 C | -0.35 C |
| 1928 | 13.6 C | -0.30 C |
| 1929 | 13.8 C | -0.14 C |
| 1931 | 14.6 C | +0.62 C |
| 1932 | 13.8 C | -0.16 C |
| 1933 | 13.5 C | -0.48 C |
| 1934 | 14.9 C | +0.94 C |
| 1935 | 13.7 C | -0.20 C |
| 1936 | 14.9 C | +1.00 C |
| 1937 | 14.0 C | +0.05 C |
| 1938 | 14.1 C | +0.15 C |
| 1939 | 14.4 C | +0.49 C |
| 1942 | 13.8 C | -0.16 C |
| 1943 | 14.4 C | +0.51 C |
| 1944 | 13.5 C | -0.44 C |
| 1945 | 13.7 C | -0.24 C |
| 1946 | 13.3 C | -0.65 C |
| 1947 | 14.0 C | +0.11 C |
| 1948 | 13.2 C | -0.69 C |
| 1949 | 14.1 C | +0.16 C |
| 1950 | 14.7 C | +0.73 C |
| 1951 | 13.8 C | -0.10 C |
| 1952 | 14.4 C | +0.42 C |
| 1953 | 14.9 C | +1.00 C |
| 1954 | 14.7 C | +0.76 C |
| 1955 | 14.0 C | +0.09 C |
| 1956 | 14.5 C | +0.56 C |
The fitted trend in annual mean temperature here over 1900 to 1956 is 0.06 C (-0.02 to 0.15) per decade. The interval includes zero, so the trend is not clearly different from zero. In Fahrenheit: 0.11 F (-0.05 to 0.27) per decade. The slope is a straight line fitted to 51 complete years; the brackets give its 95 percent interval.
| Measure | Per decade (C) | Per decade (F) | Period | Complete years | Reading |
|---|---|---|---|---|---|
| Annual mean temperature | 0.06 C (-0.02 to 0.15) per decade | 0.11 F (-0.05 to 0.27) per decade | 1900 to 1956 | 51 | Not clearly different from zero |
| Mean daily maximum | 0.4 C (0.2 to 0.5) per decade | 0.7 F (0.4 to 1.0) per decade | 1900 to 1956 | 51 | Rise |
| Mean daily minimum | -0.3 C (-0.4 to -0.1) per decade | -0.5 F (-0.7 to -0.2) per decade | 1900 to 1956 | 51 | Fall |
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
1894 to 1958| Measure | Record | Year of the record | Median year | Years with a value |
|---|---|---|---|---|
| Hottest day (TXx) | 40.0 C (104.0 F) | 1957 | 33.9 C (93.0 F) | 64 |
| Coldest night (TNn) | -4.4 C (24.1 F) | 1949 | 0.0 C (32.0 F) | 63 |
| Wettest day (Rx1day) | 108.5 mm (4.3 in) | 1904 | 46.9 mm (1.8 in) | 64 |
| Wettest five days (Rx5day) | 184.6 mm (7.3 in) | 1931 | 93.5 mm (3.7 in) | 64 |
| Longest dry spell (CDD) | 198 days | 1905 | 108 days | 64 |
Hottest day (TXx)
| Year | Hottest day (TXx) |
|---|---|
| 1894 | 28.9 C (84.0 F) |
| 1895 | 33.3 C (91.9 F) |
| 1896 | 31.1 C (88.0 F) |
| 1897 | 33.3 C (91.9 F) |
| 1898 | 33.9 C (93.0 F) |
| 1899 | 34.4 C (93.9 F) |
| 1900 | 33.9 C (93.0 F) |
| 1901 | 32.2 C (90.0 F) |
| 1902 | 30.0 C (86.0 F) |
| 1903 | 36.7 C (98.1 F) |
| 1904 | 37.2 C (99.0 F) |
| 1905 | 37.8 C (100.0 F) |
| 1906 | 31.7 C (89.1 F) |
| 1907 | 30.0 C (86.0 F) |
| 1908 | 31.7 C (89.1 F) |
| 1909 | 35.6 C (96.1 F) |
| 1910 | 33.9 C (93.0 F) |
| 1911 | 29.4 C (84.9 F) |
| 1912 | 32.8 C (91.0 F) |
| 1913 | 36.1 C (97.0 F) |
| 1914 | 30.0 C (86.0 F) |
| 1915 | 29.4 C (84.9 F) |
| 1916 | 32.8 C (91.0 F) |
| 1917 | 35.0 C (95.0 F) |
| 1918 | 30.6 C (87.1 F) |
| 1919 | 33.9 C (93.0 F) |
| 1920 | 32.8 C (91.0 F) |
| 1921 | 34.4 C (93.9 F) |
| 1922 | 31.1 C (88.0 F) |
| 1923 | 31.1 C (88.0 F) |
| 1924 | 32.2 C (90.0 F) |
| 1925 | 35.0 C (95.0 F) |
| 1926 | 32.2 C (90.0 F) |
| 1927 | 31.7 C (89.1 F) |
| 1928 | 33.9 C (93.0 F) |
| 1929 | 33.3 C (91.9 F) |
| 1930 | 30.6 C (87.1 F) |
| 1931 | 36.7 C (98.1 F) |
| 1932 | 33.9 C (93.0 F) |
| 1933 | 31.1 C (88.0 F) |
| 1934 | 34.4 C (93.9 F) |
| 1935 | 32.2 C (90.0 F) |
| 1936 | 32.8 C (91.0 F) |
| 1937 | 32.8 C (91.0 F) |
| 1938 | 30.0 C (86.0 F) |
| 1939 | 37.8 C (100.0 F) |
| 1940 | 28.3 C (82.9 F) |
| 1941 | n/a |
| 1942 | 35.0 C (95.0 F) |
| 1943 | 36.7 C (98.1 F) |
| 1944 | 38.9 C (102.0 F) |
| 1945 | 35.0 C (95.0 F) |
| 1946 | 37.2 C (99.0 F) |
| 1947 | 35.6 C (96.1 F) |
| 1948 | 35.6 C (96.1 F) |
| 1949 | 37.2 C (99.0 F) |
| 1950 | 39.4 C (102.9 F) |
| 1951 | 35.6 C (96.1 F) |
| 1952 | 37.8 C (100.0 F) |
| 1953 | 37.2 C (99.0 F) |
| 1954 | 38.9 C (102.0 F) |
| 1955 | 37.2 C (99.0 F) |
| 1956 | 36.1 C (97.0 F) |
| 1957 | 40.0 C (104.0 F) |
| 1958 | 34.4 C (93.9 F) |
Coldest night (TNn)
| Year | Coldest night (TNn) |
|---|---|
| 1894 | n/a |
| 1895 | 0.0 C (32.0 F) |
| 1896 | 0.6 C (33.1 F) |
| 1897 | 0.0 C (32.0 F) |
| 1898 | -0.6 C (30.9 F) |
| 1899 | -0.6 C (30.9 F) |
| 1900 | 0.6 C (33.1 F) |
| 1901 | 0.0 C (32.0 F) |
| 1902 | 0.0 C (32.0 F) |
| 1903 | 0.0 C (32.0 F) |
| 1904 | 0.6 C (33.1 F) |
| 1905 | 0.6 C (33.1 F) |
| 1906 | 2.2 C (36.0 F) |
| 1907 | 1.1 C (34.0 F) |
| 1908 | 0.0 C (32.0 F) |
| 1909 | 0.6 C (33.1 F) |
| 1910 | -1.1 C (30.0 F) |
| 1911 | 0.0 C (32.0 F) |
| 1912 | 0.0 C (32.0 F) |
| 1913 | -1.1 C (30.0 F) |
| 1914 | 1.7 C (35.1 F) |
| 1915 | -1.1 C (30.0 F) |
| 1916 | -1.1 C (30.0 F) |
| 1917 | -1.1 C (30.0 F) |
| 1918 | 1.1 C (34.0 F) |
| 1919 | -0.6 C (30.9 F) |
| 1920 | 2.2 C (36.0 F) |
| 1921 | 1.1 C (34.0 F) |
| 1922 | -1.7 C (28.9 F) |
| 1923 | -1.1 C (30.0 F) |
| 1924 | -0.6 C (30.9 F) |
| 1925 | 3.3 C (37.9 F) |
| 1926 | 0.6 C (33.1 F) |
| 1927 | 2.8 C (37.0 F) |
| 1928 | 1.1 C (34.0 F) |
| 1929 | 0.0 C (32.0 F) |
| 1930 | 0.6 C (33.1 F) |
| 1931 | 1.7 C (35.1 F) |
| 1932 | -3.9 C (25.0 F) |
| 1933 | 0.0 C (32.0 F) |
| 1934 | 3.9 C (39.0 F) |
| 1935 | 1.1 C (34.0 F) |
| 1936 | 2.8 C (37.0 F) |
| 1937 | -3.9 C (25.0 F) |
| 1938 | 2.8 C (37.0 F) |
| 1939 | 1.1 C (34.0 F) |
| 1940 | 1.1 C (34.0 F) |
| 1941 | n/a |
| 1942 | -0.6 C (30.9 F) |
| 1943 | -2.2 C (28.0 F) |
| 1944 | 1.1 C (34.0 F) |
| 1945 | 0.0 C (32.0 F) |
| 1946 | -1.1 C (30.0 F) |
| 1947 | -1.1 C (30.0 F) |
| 1948 | -1.7 C (28.9 F) |
| 1949 | -4.4 C (24.1 F) |
| 1950 | -2.2 C (28.0 F) |
| 1951 | -0.6 C (30.9 F) |
| 1952 | -1.1 C (30.0 F) |
| 1953 | -1.1 C (30.0 F) |
| 1954 | -1.1 C (30.0 F) |
| 1955 | -0.6 C (30.9 F) |
| 1956 | -1.1 C (30.0 F) |
| 1957 | -2.2 C (28.0 F) |
| 1958 | 1.7 C (35.1 F) |
Wettest day (Rx1day)
| Year | Wettest day (Rx1day) |
|---|---|
| 1894 | n/a |
| 1895 | 0.0 mm (0.00 in) |
| 1896 | 0.0 mm (0.00 in) |
| 1897 | 70.6 mm (2.8 in) |
| 1898 | 23.9 mm (0.9 in) |
| 1899 | 93.2 mm (3.7 in) |
| 1900 | 44.5 mm (1.8 in) |
| 1901 | 53.3 mm (2.1 in) |
| 1902 | 43.9 mm (1.7 in) |
| 1903 | 63.0 mm (2.5 in) |
| 1904 | 108.5 mm (4.3 in) |
| 1905 | 43.9 mm (1.7 in) |
| 1906 | 33.8 mm (1.3 in) |
| 1907 | 46.7 mm (1.8 in) |
| 1908 | 36.3 mm (1.4 in) |
| 1909 | 37.6 mm (1.5 in) |
| 1910 | 31.2 mm (1.2 in) |
| 1911 | 54.9 mm (2.2 in) |
| 1912 | 32.3 mm (1.3 in) |
| 1913 | 32.0 mm (1.3 in) |
| 1914 | 46.2 mm (1.8 in) |
| 1915 | 83.1 mm (3.3 in) |
| 1916 | 84.8 mm (3.3 in) |
| 1917 | 41.4 mm (1.6 in) |
| 1918 | 69.1 mm (2.7 in) |
| 1919 | 73.7 mm (2.9 in) |
| 1920 | 29.5 mm (1.2 in) |
| 1921 | 47.5 mm (1.9 in) |
| 1922 | 44.7 mm (1.8 in) |
| 1923 | 34.0 mm (1.3 in) |
| 1924 | 47.0 mm (1.9 in) |
| 1925 | 55.9 mm (2.2 in) |
| 1926 | 63.0 mm (2.5 in) |
| 1927 | 57.4 mm (2.3 in) |
| 1928 | 67.6 mm (2.7 in) |
| 1929 | 41.4 mm (1.6 in) |
| 1930 | 29.5 mm (1.2 in) |
| 1931 | 84.3 mm (3.3 in) |
| 1932 | 33.5 mm (1.3 in) |
| 1933 | 35.8 mm (1.4 in) |
| 1934 | 44.5 mm (1.8 in) |
| 1935 | 41.7 mm (1.6 in) |
| 1936 | 47.8 mm (1.9 in) |
| 1937 | 64.5 mm (2.5 in) |
| 1938 | 40.6 mm (1.6 in) |
| 1939 | 64.8 mm (2.6 in) |
| 1940 | 82.6 mm (3.3 in) |
| 1941 | 73.7 mm (2.9 in) |
| 1942 | 103.6 mm (4.1 in) |
| 1943 | 62.0 mm (2.4 in) |
| 1944 | 41.1 mm (1.6 in) |
| 1945 | 62.0 mm (2.4 in) |
| 1946 | 41.1 mm (1.6 in) |
| 1947 | 36.8 mm (1.4 in) |
| 1948 | 38.4 mm (1.5 in) |
| 1949 | 37.6 mm (1.5 in) |
| 1950 | 78.2 mm (3.1 in) |
| 1951 | 57.9 mm (2.3 in) |
| 1952 | 56.4 mm (2.2 in) |
| 1953 | 39.4 mm (1.6 in) |
| 1954 | 47.8 mm (1.9 in) |
| 1955 | 56.9 mm (2.2 in) |
| 1956 | 53.6 mm (2.1 in) |
| 1957 | 39.4 mm (1.6 in) |
| 1958 | 53.1 mm (2.1 in) |
Wettest five days (Rx5day)
| Year | Wettest five days (Rx5day) |
|---|---|
| 1894 | n/a |
| 1895 | 0.0 mm (0.00 in) |
| 1896 | 0.0 mm (0.00 in) |
| 1897 | 82.5 mm (3.2 in) |
| 1898 | 46.2 mm (1.8 in) |
| 1899 | 93.7 mm (3.7 in) |
| 1900 | 116.9 mm (4.6 in) |
| 1901 | 111.3 mm (4.4 in) |
| 1902 | 131.7 mm (5.2 in) |
| 1903 | 84.9 mm (3.3 in) |
| 1904 | 133.0 mm (5.2 in) |
| 1905 | 78.0 mm (3.1 in) |
| 1906 | 82.1 mm (3.2 in) |
| 1907 | 108.5 mm (4.3 in) |
| 1908 | 64.8 mm (2.6 in) |
| 1909 | 97.8 mm (3.9 in) |
| 1910 | 55.9 mm (2.2 in) |
| 1911 | 151.1 mm (5.9 in) |
| 1912 | 53.7 mm (2.1 in) |
| 1913 | 66.0 mm (2.6 in) |
| 1914 | 93.2 mm (3.7 in) |
| 1915 | 90.5 mm (3.6 in) |
| 1916 | 132.6 mm (5.2 in) |
| 1917 | 93.7 mm (3.7 in) |
| 1918 | 111.8 mm (4.4 in) |
| 1919 | 181.7 mm (7.2 in) |
| 1920 | 62.8 mm (2.5 in) |
| 1921 | 94.8 mm (3.7 in) |
| 1922 | 98.7 mm (3.9 in) |
| 1923 | 103.5 mm (4.1 in) |
| 1924 | 87.7 mm (3.5 in) |
| 1925 | 125.0 mm (4.9 in) |
| 1926 | 127.8 mm (5.0 in) |
| 1927 | 82.6 mm (3.3 in) |
| 1928 | 114.7 mm (4.5 in) |
| 1929 | 79.0 mm (3.1 in) |
| 1930 | 66.5 mm (2.6 in) |
| 1931 | 184.6 mm (7.3 in) |
| 1932 | 67.1 mm (2.6 in) |
| 1933 | 58.9 mm (2.3 in) |
| 1934 | 81.5 mm (3.2 in) |
| 1935 | 73.8 mm (2.9 in) |
| 1936 | 125.8 mm (5.0 in) |
| 1937 | 110.0 mm (4.3 in) |
| 1938 | 103.1 mm (4.1 in) |
| 1939 | 85.6 mm (3.4 in) |
| 1940 | 166.4 mm (6.6 in) |
| 1941 | 110.0 mm (4.3 in) |
| 1942 | 139.6 mm (5.5 in) |
| 1943 | 132.1 mm (5.2 in) |
| 1944 | 73.5 mm (2.9 in) |
| 1945 | 104.4 mm (4.1 in) |
| 1946 | 72.0 mm (2.8 in) |
| 1947 | 64.2 mm (2.5 in) |
| 1948 | 55.2 mm (2.2 in) |
| 1949 | 52.8 mm (2.1 in) |
| 1950 | 136.2 mm (5.4 in) |
| 1951 | 92.8 mm (3.7 in) |
| 1952 | 128.5 mm (5.1 in) |
| 1953 | 57.2 mm (2.3 in) |
| 1954 | 65.2 mm (2.6 in) |
| 1955 | 175.0 mm (6.9 in) |
| 1956 | 99.8 mm (3.9 in) |
| 1957 | 68.9 mm (2.7 in) |
| 1958 | 129.3 mm (5.1 in) |
Longest dry spell (CDD)
| Year | Longest dry spell (CDD) |
|---|---|
| 1894 | n/a |
| 1895 | 31 days |
| 1896 | 61 days |
| 1897 | 72 days |
| 1898 | 29 days |
| 1899 | 110 days |
| 1900 | 109 days |
| 1901 | 119 days |
| 1902 | 134 days |
| 1903 | 176 days |
| 1904 | 143 days |
| 1905 | 198 days |
| 1906 | 97 days |
| 1907 | 130 days |
| 1908 | 120 days |
| 1909 | 179 days |
| 1910 | 174 days |
| 1911 | 116 days |
| 1912 | 68 days |
| 1913 | 100 days |
| 1914 | 74 days |
| 1915 | 75 days |
| 1916 | 43 days |
| 1917 | 22 days |
| 1918 | 52 days |
| 1919 | 68 days |
| 1920 | 18 days |
| 1921 | 25 days |
| 1922 | 25 days |
| 1923 | 66 days |
| 1924 | 65 days |
| 1925 | 60 days |
| 1926 | 146 days |
| 1927 | 89 days |
| 1928 | 173 days |
| 1929 | 113 days |
| 1930 | 118 days |
| 1931 | 93 days |
| 1932 | 154 days |
| 1933 | 126 days |
| 1934 | 102 days |
| 1935 | 118 days |
| 1936 | 112 days |
| 1937 | 107 days |
| 1938 | 149 days |
| 1939 | 113 days |
| 1940 | 95 days |
| 1941 | 108 days |
| 1942 | 105 days |
| 1943 | 137 days |
| 1944 | 65 days |
| 1945 | 145 days |
| 1946 | 112 days |
| 1947 | 120 days |
| 1948 | 133 days |
| 1949 | 71 days |
| 1950 | 172 days |
| 1951 | 107 days |
| 1952 | 72 days |
| 1953 | 83 days |
| 1954 | 77 days |
| 1955 | 170 days |
| 1956 | 133 days |
| 1957 | 109 days |
| 1958 | 50 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
47 years, 1899 to 1957A day with at least 49.0 mm (1.9 in) of rain is expected about once in 2 years. A day with at least 125.0 mm (4.9 in) of rain is expected about once in 100 years.
| Expected about once in | A day with at least | Note |
|---|---|---|
| 2 years | 49.0 mm (1.9 in) | |
| 5 years | 65.2 mm (2.6 in) | |
| 10 years | 77.5 mm (3.1 in) | |
| 25 years | 94.8 mm (3.7 in) | |
| 50 years | 109.2 mm (4.3 in) | Longer than the 47 years of record |
| 100 years | 125.0 mm (4.9 in) | Longer than the 47 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, 47 years of values from 1899 to 1957.
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: 108.5 mm (4.3 in) in 1904; 103.6 mm (4.1 in) in 1942; 93.2 mm (3.7 in) in 1899.
Station Changes
2 suspected2 changes were suspected in the annual mean temperature of Oakland, at 1916 and 1952. Each is measured against neighbouring stations.
- Relative to 5 neighbouring stations, the station's annual mean temperature from 1916 ran 0.5 C (0.8 F) lower than in the years before (likely change).
- Relative to 5 neighbouring stations, the station's annual mean temperature from 1952 ran 0.4 C (0.7 F) higher than in the years before (possible change).
| Year | Shift (C) | Shift (F) | Strength | Neighbours |
|---|---|---|---|---|
| 1916 | -0.5 | -0.8 | likely | 5 |
| 1952 | +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).