Point Piedras Blanca Weather Records (USC00047024)
Record envelope, standing records and threshold days for Point Piedras Blanca (USC00047024), California, United States, with 38 years of record.
Key Facts for Point Piedras Blanca
- Point Piedras Blanca (USC00047024) is a weather station in California, United States at 35.67 latitude and -121.28 longitude, 18 m (59 ft) above sea level.
- The station reports from 1938 to 1975, 38 years of record.
- 1,464 records set at Point Piedras Blanca still stand.
- Records are tracked for tmax, tmin, prcp: an element needs 30 years of data to be eligible.
- Point Piedras Blanca set a daily record low minimum temperature of 7.8 C (46.0 F) on 3 September 1975.
About the Station
- Location: California, United States, 35.67 latitude, -121.28 longitude.
- Elevation: 18 m (59 ft).
- Period of record: 1938 to 1975, 38 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 | 25.6 C (78.1 F) | -1.7 C (28.9 F) | n/a | n/a |
| Feb | 27.8 C (82.0 F) | -1.7 C (28.9 F) | n/a | n/a |
| Mar | 24.4 C (75.9 F) | 0.6 C (33.1 F) | n/a | n/a |
| Apr | 25.6 C (78.1 F) | 0.0 C (32.0 F) | n/a | n/a |
| May | 26.1 C (79.0 F) | 1.1 C (34.0 F) | n/a | n/a |
| Jun | 26.1 C (79.0 F) | 4.4 C (39.9 F) | n/a | n/a |
| Jul | 26.7 C (80.1 F) | 4.4 C (39.9 F) | n/a | n/a |
| Aug | 25.0 C (77.0 F) | 2.8 C (37.0 F) | n/a | n/a |
| Sep | 28.9 C (84.0 F) | 2.2 C (36.0 F) | n/a | n/a |
| Oct | 32.2 C (90.0 F) | 2.8 C (37.0 F) | n/a | n/a |
| Nov | 29.4 C (84.9 F) | 0.6 C (33.1 F) | n/a | n/a |
| Dec | 27.2 C (81.0 F) | -0.6 C (30.9 F) | n/a | n/a |
Which Years Hold Standing Records
1,464 standing records| Year set | Standing records |
|---|---|
| 1938 | 23 |
| 1939 | 33 |
| 1940 | 34 |
| 1941 | 49 |
| 1942 | 32 |
| 1943 | 39 |
| 1944 | 41 |
| 1945 | 31 |
| 1946 | 49 |
| 1947 | 48 |
| 1948 | 53 |
| 1949 | 76 |
| 1950 | 56 |
| 1951 | 45 |
| 1952 | 34 |
| 1953 | 57 |
| 1954 | 69 |
| 1955 | 45 |
| 1956 | 37 |
| 1957 | 32 |
| 1958 | 48 |
| 1959 | 50 |
| 1960 | 29 |
| 1961 | 35 |
| 1962 | 29 |
| 1963 | 34 |
| 1964 | 57 |
| 1965 | 38 |
| 1966 | 22 |
| 1967 | 33 |
| 1968 | 33 |
| 1969 | 35 |
| 1970 | 23 |
| 1971 | 16 |
| 1972 | 35 |
| 1973 | 9 |
| 1974 | 49 |
| 1975 | 6 |
Wettest Day of Each Month
Jan: 134.1 mm (5.3 in)| Month | Record daily precipitation (mm) | Date |
|---|---|---|
| Jan | 134.1 mm (5.3 in) | 19 January 1969 |
| Feb | 80.5 mm (3.2 in) | 24 February 1969 |
| Mar | 64.8 mm (2.6 in) | 3 March 1949 |
| Apr | 55.1 mm (2.2 in) | 1 April 1974 |
| May | 41.4 mm (1.6 in) | 18 May 1957 |
| Jun | 6.6 mm (0.26 in) | 1 June 1967 |
| Jul | 4.8 mm (0.19 in) | 9 July 1950 |
| Aug | 17.3 mm (0.7 in) | 16 August 1958 |
| Sep | 12.2 mm (0.5 in) | 23 September 1958 |
| Oct | 75.4 mm (3.0 in) | 10 October 1957 |
| Nov | 88.4 mm (3.5 in) | 14 November 1965 |
| Dec | 83.8 mm (3.3 in) | 3 December 1974 |
Period of Record Coverage
1938 to 1975| Year | Days with data | Share of year | Complete |
|---|---|---|---|
| 1938 | 153 | 42% | No |
| 1939 | 151 | 41% | No |
| 1940 | 306 | 84% | No |
| 1941 | 365 | 100% | Yes |
| 1942 | 361 | 99% | Yes |
| 1943 | 365 | 100% | Yes |
| 1944 | 366 | 100% | Yes |
| 1945 | 365 | 100% | Yes |
| 1946 | 364 | 100% | Yes |
| 1947 | 361 | 99% | Yes |
| 1948 | 365 | 100% | Yes |
| 1949 | 351 | 96% | Yes |
| 1950 | 362 | 99% | Yes |
| 1951 | 362 | 99% | Yes |
| 1952 | 360 | 98% | Yes |
| 1953 | 359 | 98% | Yes |
| 1954 | 364 | 100% | Yes |
| 1955 | 362 | 99% | Yes |
| 1956 | 336 | 92% | Yes |
| 1957 | 359 | 98% | Yes |
| 1958 | 363 | 99% | Yes |
| 1959 | 364 | 100% | Yes |
| 1960 | 335 | 92% | Yes |
| 1961 | 361 | 99% | Yes |
| 1962 | 365 | 100% | Yes |
| 1963 | 358 | 98% | Yes |
| 1964 | 304 | 83% | No |
| 1965 | 364 | 100% | Yes |
| 1966 | 365 | 100% | Yes |
| 1967 | 365 | 100% | Yes |
| 1968 | 366 | 100% | Yes |
| 1969 | 365 | 100% | Yes |
| 1970 | 365 | 100% | Yes |
| 1971 | 335 | 92% | Yes |
| 1972 | 366 | 100% | Yes |
| 1973 | 304 | 83% | No |
| 1974 | 363 | 99% | Yes |
| 1975 | 262 | 72% | No |
Latest Records
20| Date | Station | Record | Value | Beat old record by | Old record stood | Significance |
|---|---|---|---|---|---|---|
| 3 September 1975 | Point Piedras Blanca, US | daily low min | 7.8 C (46.0 F) | 0.5 C (0.9 F) | 20 years | 12 of 100 (Routine) |
| 3 August 1975 | Point Piedras Blanca, US | daily high min (Tie) | 12.8 C (55.0 F) | tie | 16 years | 2 of 100 (Routine) |
| 3 July 1975 | Point Piedras Blanca, US | daily low min | 7.8 C (46.0 F) | 0.5 C (0.9 F) | 28 years | 14 of 100 (Routine) |
| 26 June 1975 | Point Piedras Blanca, US | daily high min (Tie) | 11.7 C (53.1 F) | tie | 30 years | 3 of 100 (Routine) |
| 24 June 1975 | Point Piedras Blanca, US | daily high min (Tie) | 11.7 C (53.1 F) | tie | 26 years | 2 of 100 (Routine) |
| 22 May 1975 | Point Piedras Blanca, US | daily low min | 6.1 C (43.0 F) | 0.6 C (1.1 F) | 12 years | 9 of 100 (Routine) |
| 5 May 1975 | Point Piedras Blanca, US | daily low min | 3.9 C (39.0 F) | 1.1 C (2.0 F) | 24 years | 17 of 100 (Routine) |
| 30 April 1975 | Point Piedras Blanca, US | daily high min (Tie) | 10.0 C (50.0 F) | tie | 33 years | 3 of 100 (Routine) |
| 24 April 1975 | Point Piedras Blanca, US | daily rain | 5.3 mm (0.21 in) | 1.0 mm (0.04 in) | 10 years | 6 of 100 (Routine) |
| 17 April 1975 | Point Piedras Blanca, US | daily low min | 3.9 C (39.0 F) | 0.5 C (0.9 F) | 20 years | 11 of 100 (Routine) |
| 16 April 1975 | Point Piedras Blanca, US | daily high min (Tie) | 10.0 C (50.0 F) | tie | 32 years | 3 of 100 (Routine) |
| 6 April 1975 | Point Piedras Blanca, US | daily low min | 4.4 C (39.9 F) | 0.6 C (1.1 F) | 10 years | 9 of 100 (Routine) |
| 5 April 1975 | Point Piedras Blanca, US | daily low max (Tie) | 11.7 C (53.1 F) | tie | 5 years | 1 of 100 (Routine) |
| 22 March 1975 | Point Piedras Blanca, US | daily low min (Tie) | 4.4 C (39.9 F) | tie | 28 years | 2 of 100 (Routine) |
| 21 March 1975 | Point Piedras Blanca, US | daily rain | 17.5 mm (0.7 in) | 2.5 mm (0.10 in) | 16 years | 9 of 100 (Routine) |
| 14 March 1975 | Point Piedras Blanca, US | daily low min (Tie) | 3.3 C (37.9 F) | tie | 30 years | 3 of 100 (Routine) |
| 13 March 1975 | Point Piedras Blanca, US | daily rain | 27.2 mm (1.1 in) | 4.8 mm (0.19 in) | 6 years | 8 of 100 (Routine) |
| 5 March 1975 | Point Piedras Blanca, US | daily rain | 36.6 mm (1.4 in) | 8.2 mm (0.32 in) | 12 years | 12 of 100 (Routine) |
| 28 December 1974 | Point Piedras Blanca, US | daily low max | 10.0 C (50.0 F) | 1.7 C (3.1 F) | 25 years | 17 of 100 (Routine) |
| 25 December 1974 | Point Piedras Blanca, US | daily low min (Tie) | 4.4 C (39.9 F) | tie | 4 years | 1 of 100 (Routine) |
Climate Trend
29 complete years, 1941 to 1974| Year | Annual mean temperature | Difference from the station mean |
|---|---|---|
| 1941 | 13.3 C | +0.77 C |
| 1942 | 12.3 C | -0.27 C |
| 1943 | 12.7 C | +0.18 C |
| 1944 | 12.1 C | -0.39 C |
| 1945 | 12.0 C | -0.52 C |
| 1946 | 11.5 C | -1.03 C |
| 1947 | 12.0 C | -0.53 C |
| 1948 | 11.4 C | -1.15 C |
| 1949 | 11.1 C | -1.39 C |
| 1950 | 11.8 C | -0.69 C |
| 1951 | 12.2 C | -0.30 C |
| 1952 | 11.6 C | -0.98 C |
| 1953 | 11.8 C | -0.76 C |
| 1954 | 11.7 C | -0.82 C |
| 1955 | 11.7 C | -0.86 C |
| 1957 | 12.8 C | +0.22 C |
| 1958 | 13.5 C | +0.92 C |
| 1959 | 13.2 C | +0.68 C |
| 1961 | 13.4 C | +0.84 C |
| 1962 | 12.8 C | +0.25 C |
| 1963 | 13.6 C | +1.06 C |
| 1965 | 13.2 C | +0.62 C |
| 1966 | 13.5 C | +0.95 C |
| 1967 | 13.4 C | +0.90 C |
| 1968 | 13.0 C | +0.49 C |
| 1969 | 13.1 C | +0.52 C |
| 1970 | 12.9 C | +0.37 C |
| 1972 | 13.1 C | +0.53 C |
| 1974 | 12.9 C | +0.38 C |
This station does not have enough complete years (30 are needed) to fit a temperature trend.
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
1938 to 1975| Measure | Record | Year of the record | Median year | Years with a value |
|---|---|---|---|---|
| Hottest day (TXx) | 32.2 C (90.0 F) | 1965 | 25.6 C (78.1 F) | 38 |
| Coldest night (TNn) | -1.7 C (28.9 F) | 1939 | 2.0 C (35.5 F) | 38 |
| Wettest day (Rx1day) | 134.1 mm (5.3 in) | 1969 | 57.2 mm (2.3 in) | 38 |
| Wettest five days (Rx5day) | 255.3 mm (10.1 in) | 1969 | 95.3 mm (3.8 in) | 38 |
| Longest dry spell (CDD) | 190 days | 1952 | 106 days | 38 |
Hottest day (TXx)
| Year | Hottest day (TXx) |
|---|---|
| 1938 | 27.2 C (81.0 F) |
| 1939 | 24.4 C (75.9 F) |
| 1940 | 26.7 C (80.1 F) |
| 1941 | 26.1 C (79.0 F) |
| 1942 | 22.2 C (72.0 F) |
| 1943 | 27.8 C (82.0 F) |
| 1944 | 25.6 C (78.1 F) |
| 1945 | 24.4 C (75.9 F) |
| 1946 | 28.9 C (84.0 F) |
| 1947 | 24.4 C (75.9 F) |
| 1948 | 23.9 C (75.0 F) |
| 1949 | 26.1 C (79.0 F) |
| 1950 | 25.6 C (78.1 F) |
| 1951 | 26.7 C (80.1 F) |
| 1952 | 22.8 C (73.0 F) |
| 1953 | 29.4 C (84.9 F) |
| 1954 | 27.2 C (81.0 F) |
| 1955 | 28.9 C (84.0 F) |
| 1956 | 25.6 C (78.1 F) |
| 1957 | 24.4 C (75.9 F) |
| 1958 | 26.7 C (80.1 F) |
| 1959 | 29.4 C (84.9 F) |
| 1960 | 22.2 C (72.0 F) |
| 1961 | 28.9 C (84.0 F) |
| 1962 | 25.6 C (78.1 F) |
| 1963 | 22.8 C (73.0 F) |
| 1964 | 25.6 C (78.1 F) |
| 1965 | 32.2 C (90.0 F) |
| 1966 | 25.6 C (78.1 F) |
| 1967 | 30.0 C (86.0 F) |
| 1968 | 24.4 C (75.9 F) |
| 1969 | 25.0 C (77.0 F) |
| 1970 | 28.9 C (84.0 F) |
| 1971 | 24.4 C (75.9 F) |
| 1972 | 23.9 C (75.0 F) |
| 1973 | 26.1 C (79.0 F) |
| 1974 | 24.4 C (75.9 F) |
| 1975 | 20.0 C (68.0 F) |
Coldest night (TNn)
| Year | Coldest night (TNn) |
|---|---|
| 1938 | 4.4 C (39.9 F) |
| 1939 | -1.7 C (28.9 F) |
| 1940 | 5.6 C (42.1 F) |
| 1941 | 4.4 C (39.9 F) |
| 1942 | 1.7 C (35.1 F) |
| 1943 | 2.2 C (36.0 F) |
| 1944 | 2.2 C (36.0 F) |
| 1945 | 3.3 C (37.9 F) |
| 1946 | 1.1 C (34.0 F) |
| 1947 | 0.0 C (32.0 F) |
| 1948 | 0.0 C (32.0 F) |
| 1949 | -0.6 C (30.9 F) |
| 1950 | 0.6 C (33.1 F) |
| 1951 | 0.0 C (32.0 F) |
| 1952 | 2.8 C (37.0 F) |
| 1953 | 2.2 C (36.0 F) |
| 1954 | 0.6 C (33.1 F) |
| 1955 | 0.0 C (32.0 F) |
| 1956 | 3.9 C (39.0 F) |
| 1957 | 1.7 C (35.1 F) |
| 1958 | 1.7 C (35.1 F) |
| 1959 | 3.3 C (37.9 F) |
| 1960 | 2.2 C (36.0 F) |
| 1961 | 2.2 C (36.0 F) |
| 1962 | 0.6 C (33.1 F) |
| 1963 | 3.3 C (37.9 F) |
| 1964 | 0.6 C (33.1 F) |
| 1965 | -1.7 C (28.9 F) |
| 1966 | 2.8 C (37.0 F) |
| 1967 | 1.7 C (35.1 F) |
| 1968 | 1.1 C (34.0 F) |
| 1969 | 2.2 C (36.0 F) |
| 1970 | 4.4 C (39.9 F) |
| 1971 | 0.0 C (32.0 F) |
| 1972 | -0.6 C (30.9 F) |
| 1973 | 3.9 C (39.0 F) |
| 1974 | 3.3 C (37.9 F) |
| 1975 | 2.8 C (37.0 F) |
Wettest day (Rx1day)
| Year | Wettest day (Rx1day) |
|---|---|
| 1938 | 9.4 mm (0.37 in) |
| 1939 | 34.5 mm (1.4 in) |
| 1940 | 51.3 mm (2.0 in) |
| 1941 | 78.5 mm (3.1 in) |
| 1942 | 56.9 mm (2.2 in) |
| 1943 | 76.2 mm (3.0 in) |
| 1944 | 53.1 mm (2.1 in) |
| 1945 | 55.6 mm (2.2 in) |
| 1946 | 30.2 mm (1.2 in) |
| 1947 | 30.7 mm (1.2 in) |
| 1948 | 43.9 mm (1.7 in) |
| 1949 | 64.8 mm (2.6 in) |
| 1950 | 77.0 mm (3.0 in) |
| 1951 | 26.4 mm (1.0 in) |
| 1952 | 64.5 mm (2.5 in) |
| 1953 | 52.8 mm (2.1 in) |
| 1954 | 46.0 mm (1.8 in) |
| 1955 | 59.4 mm (2.3 in) |
| 1956 | 58.7 mm (2.3 in) |
| 1957 | 75.4 mm (3.0 in) |
| 1958 | 62.5 mm (2.5 in) |
| 1959 | 38.6 mm (1.5 in) |
| 1960 | 69.6 mm (2.7 in) |
| 1961 | 57.9 mm (2.3 in) |
| 1962 | 76.7 mm (3.0 in) |
| 1963 | 70.4 mm (2.8 in) |
| 1964 | 40.9 mm (1.6 in) |
| 1965 | 88.4 mm (3.5 in) |
| 1966 | 57.4 mm (2.3 in) |
| 1967 | 55.6 mm (2.2 in) |
| 1968 | 50.8 mm (2.0 in) |
| 1969 | 134.1 mm (5.3 in) |
| 1970 | 70.9 mm (2.8 in) |
| 1971 | 37.3 mm (1.5 in) |
| 1972 | 41.4 mm (1.6 in) |
| 1973 | 66.3 mm (2.6 in) |
| 1974 | 83.8 mm (3.3 in) |
| 1975 | 36.6 mm (1.4 in) |
Wettest five days (Rx5day)
| Year | Wettest five days (Rx5day) |
|---|---|
| 1938 | 23.6 mm (0.9 in) |
| 1939 | 60.2 mm (2.4 in) |
| 1940 | 138.2 mm (5.4 in) |
| 1941 | 152.4 mm (6.0 in) |
| 1942 | 71.4 mm (2.8 in) |
| 1943 | 150.4 mm (5.9 in) |
| 1944 | 85.8 mm (3.4 in) |
| 1945 | 122.6 mm (4.8 in) |
| 1946 | 64.6 mm (2.5 in) |
| 1947 | 46.2 mm (1.8 in) |
| 1948 | 64.5 mm (2.5 in) |
| 1949 | 95.3 mm (3.8 in) |
| 1950 | 98.8 mm (3.9 in) |
| 1951 | 64.5 mm (2.5 in) |
| 1952 | 82.0 mm (3.2 in) |
| 1953 | 67.6 mm (2.7 in) |
| 1954 | 68.8 mm (2.7 in) |
| 1955 | 162.7 mm (6.4 in) |
| 1956 | 88.7 mm (3.5 in) |
| 1957 | 90.9 mm (3.6 in) |
| 1958 | 103.1 mm (4.1 in) |
| 1959 | 79.0 mm (3.1 in) |
| 1960 | 87.9 mm (3.5 in) |
| 1961 | 98.1 mm (3.9 in) |
| 1962 | 150.6 mm (5.9 in) |
| 1963 | 182.4 mm (7.2 in) |
| 1964 | 95.3 mm (3.8 in) |
| 1965 | 173.8 mm (6.8 in) |
| 1966 | 158.7 mm (6.2 in) |
| 1967 | 71.3 mm (2.8 in) |
| 1968 | 88.1 mm (3.5 in) |
| 1969 | 255.3 mm (10.1 in) |
| 1970 | 130.5 mm (5.1 in) |
| 1971 | 101.5 mm (4.0 in) |
| 1972 | 118.1 mm (4.6 in) |
| 1973 | 104.5 mm (4.1 in) |
| 1974 | 176.5 mm (6.9 in) |
| 1975 | 62.3 mm (2.5 in) |
Longest dry spell (CDD)
| Year | Longest dry spell (CDD) |
|---|---|
| 1938 | 46 days |
| 1939 | 26 days |
| 1940 | 82 days |
| 1941 | 94 days |
| 1942 | 113 days |
| 1943 | 172 days |
| 1944 | 166 days |
| 1945 | 70 days |
| 1946 | 126 days |
| 1947 | 101 days |
| 1948 | 123 days |
| 1949 | 170 days |
| 1950 | 97 days |
| 1951 | 146 days |
| 1952 | 190 days |
| 1953 | 121 days |
| 1954 | 150 days |
| 1955 | 189 days |
| 1956 | 76 days |
| 1957 | 106 days |
| 1958 | 85 days |
| 1959 | 94 days |
| 1960 | 89 days |
| 1961 | 139 days |
| 1962 | 147 days |
| 1963 | 99 days |
| 1964 | 57 days |
| 1965 | 93 days |
| 1966 | 58 days |
| 1967 | 111 days |
| 1968 | 96 days |
| 1969 | 105 days |
| 1970 | 188 days |
| 1971 | 140 days |
| 1972 | 107 days |
| 1973 | 67 days |
| 1974 | 104 days |
| 1975 | 159 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
32 years, 1941 to 1974A day with at least 58.8 mm (2.3 in) of rain is expected about once in 2 years. A day with at least 115.4 mm (4.5 in) of rain is expected about once in 100 years.
| Expected about once in | A day with at least | Note |
|---|---|---|
| 2 years | 58.8 mm (2.3 in) | |
| 5 years | 76.9 mm (3.0 in) | |
| 10 years | 87.6 mm (3.4 in) | |
| 25 years | 99.8 mm (3.9 in) | |
| 50 years | 107.9 mm (4.2 in) | Longer than the 32 years of record |
| 100 years | 115.4 mm (4.5 in) | Longer than the 32 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, 32 years of values from 1941 to 1974.
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: 134.1 mm (5.3 in) in 1969; 88.4 mm (3.5 in) in 1965; 83.8 mm (3.3 in) in 1974.
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 2026-10-15 (15 October 2026). Records are computed by this site and are not official.
Data as of . Last revised (2025-12-31).