Spreckels Hwy Brg Weather Records (USC00048446)

Record envelope, standing records and threshold days for Spreckels Hwy Brg (USC00048446), California, United States, with 82 years of record.

Key Facts for Spreckels Hwy Brg

Spreckels Hwy Brg (USC00048446) is a weather station in California, United States at 36.63 latitude and -121.67 longitude, 6 m (21 ft) above sea level.
The station reports from 1907 to 1988, 82 years of record.
1,464 records set at Spreckels Hwy Brg still stand.
Records are tracked for tmax, tmin, prcp, snow, snwd: an element needs 30 years of data to be eligible.
Spreckels Hwy Brg set a daily record precipitation of 35.6 mm (1.4 in) on 13 February 1987.

About the Station

Location: California, United States, 36.63 latitude, -121.67 longitude.
Elevation: 6 m (21 ft).
Period of record: 1907 to 1988, 82 years.
Eligible elements: tmax, tmin, prcp, snow, snwd.

Daily Record Envelope and 2026

0 days at or beyond a record

The band shows the record high and record low for each calendar day at Spreckels Hwy Brg. The lines show the 2026 daily maximum and minimum. 0 days in 2026 matched or passed a record. Temperatures are in degrees Celsius.

Daily record high and record low at Spreckels Hwy Brg, with 2026 drawn through them
Month	Highest record high	Lowest record low	2026 highest maximum	2026 lowest minimum
Jan	27.8 C (82.0 F)	-7.8 C (18.0 F)	n/a	n/a
Feb	32.2 C (90.0 F)	-5.6 C (21.9 F)	n/a	n/a
Mar	33.9 C (93.0 F)	-3.9 C (25.0 F)	n/a	n/a
Apr	36.1 C (97.0 F)	-2.2 C (28.0 F)	n/a	n/a
May	37.8 C (100.0 F)	-1.7 C (28.9 F)	n/a	n/a
Jun	40.6 C (105.1 F)	0.0 C (32.0 F)	n/a	n/a
Jul	38.9 C (102.0 F)	1.7 C (35.1 F)	n/a	n/a
Aug	35.0 C (95.0 F)	1.7 C (35.1 F)	n/a	n/a
Sep	41.7 C (107.1 F)	0.0 C (32.0 F)	n/a	n/a
Oct	40.6 C (105.1 F)	-3.3 C (26.1 F)	n/a	n/a
Nov	32.8 C (91.0 F)	-6.7 C (19.9 F)	n/a	n/a
Dec	28.9 C (84.0 F)	-7.2 C (19.0 F)	n/a	n/a

Which Years Hold Standing Records

1,464 standing records

1,464 records at Spreckels Hwy Brg still stand. 1916 holds the most, with 94.

Standing records at Spreckels Hwy Brg by the year they were set
Year set	Standing records
1908	42
1909	66
1910	39
1911	56
1912	47
1913	60
1914	45
1915	37
1916	94
1917	80
1918	60
1919	61
1920	32
1921	52
1922	33
1923	39
1924	55
1925	44
1926	44
1927	22
1928	24
1929	34
1930	21
1931	31
1932	35
1933	43
1934	26
1935	32
1936	20
1937	26
1938	14
1939	25
1940	32
1941	29
1942	18
1943	34
1944	12

All-Time Record Progression

2 new records

2 all-time records were set at Spreckels Hwy Brg between 22 September 1939 and 3 January 1977. Each dot is a new record.

When Spreckels Hwy Brg set new all-time records
Date	Kind	Detail
1939-09-22	Record high minimum temperature	Record high minimum temperature 20.6 C (69.1 F)
1977-01-03	Record daily snowfall	Record daily snowfall 2.5 cm (1.0 in)

Wettest Day of Each Month

Sep: 81.3 mm (3.2 in)

The wettest day on record for each calendar month at Spreckels Hwy Brg. The most was 81.3 mm (3.2 in) on 13 September 1918.

Record daily precipitation for each month at Spreckels Hwy Brg
Month	Record daily precipitation (mm)	Date
Jan	47.0 mm (1.9 in)	18 January 1921
Feb	40.1 mm (1.6 in)	11 February 1973
Mar	55.6 mm (2.2 in)	28 March 1974
Apr	35.1 mm (1.4 in)	5 April 1941
May	43.4 mm (1.7 in)	25 May 1931
Jun	15.0 mm (0.6 in)	8 June 1929
Jul	12.4 mm (0.5 in)	31 July 1966
Aug	13.7 mm (0.5 in)	20 August 1976
Sep	81.3 mm (3.2 in)	13 September 1918
Oct	30.5 mm (1.2 in)	21 October 1985
Nov	43.2 mm (1.7 in)	20 November 1946
Dec	67.8 mm (2.7 in)	24 December 1921

Period of Record Coverage

1908 to 1944

37 years of record at Spreckels Hwy Brg, 1908 to 1944. Every year has data for at least 90 percent of its days.

Days with data per year at Spreckels Hwy Brg
Year	Days with data	Share of year	Complete
1908	366	100%	Yes
1909	362	99%	Yes
1910	365	100%	Yes
1911	364	100%	Yes
1912	366	100%	Yes
1913	350	96%	Yes
1914	365	100%	Yes
1915	364	100%	Yes
1916	340	93%	Yes
1917	344	94%	Yes
1918	365	100%	Yes
1919	365	100%	Yes
1920	366	100%	Yes
1921	360	99%	Yes
1922	359	98%	Yes
1923	364	100%	Yes
1924	342	93%	Yes
1925	355	97%	Yes
1926	345	95%	Yes
1927	359	98%	Yes
1928	363	99%	Yes
1929	363	99%	Yes
1930	354	97%	Yes
1931	355	97%	Yes
1932	352	96%	Yes
1933	355	97%	Yes
1934	345	95%	Yes
1935	350	96%	Yes
1936	359	98%	Yes
1937	342	94%	Yes
1938	362	99%	Yes
1939	363	99%	Yes
1940	366	100%	Yes
1941	357	98%	Yes
1942	362	99%	Yes
1943	356	98%	Yes
1944	354	97%	Yes

Latest Records

Latest records at Spreckels Hwy Brg
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
13 February 1987	Spreckels Hwy Brg, US	daily rain	35.6 mm (1.4 in)	9.9 mm (0.39 in)	8 years	24 of 100 (Routine)
27 September 1986	Spreckels Hwy Brg, US	daily rain	10.9 mm (0.4 in)	9.4 mm (0.37 in)	15 years	19 of 100 (Routine)
23 September 1986	Spreckels Hwy Brg, US	daily rain	7.9 mm (0.31 in)	2.8 mm (0.11 in)	28 years	17 of 100 (Routine)
21 August 1986	Spreckels Hwy Brg, US	daily rain	0.5 mm (0.02 in)	0.5 mm (0.02 in)	77 years	20 of 100 (Routine)
23 July 1986	Spreckels Hwy Brg, US	daily rain	0.5 mm (0.02 in)	0.5 mm (0.02 in)	76 years	20 of 100 (Routine)
8 March 1986	Spreckels Hwy Brg, US	daily rain	29.5 mm (1.2 in)	16.3 mm (0.6 in)	11 years	32 of 100 (Routine)
25 November 1985	Spreckels Hwy Brg, US	daily rain	27.7 mm (1.1 in)	1.0 mm (0.04 in)	76 years	31 of 100 (Routine)
10 November 1985	Spreckels Hwy Brg, US	daily rain	21.6 mm (0.9 in)	6.6 mm (0.26 in)	3 years	15 of 100 (Routine)
21 October 1985	Spreckels Hwy Brg, US	monthly rain	30.5 mm (1.2 in)	1.0 mm (0.04 in)	57 years	35 of 100 (Notable)
9 September 1985	Spreckels Hwy Brg, US	daily rain	1.3 mm (0.05 in)	1.0 mm (0.04 in)	28 years	15 of 100 (Routine)
20 July 1985	Spreckels Hwy Brg, US	daily rain	1.0 mm (0.04 in)	1.0 mm (0.04 in)	75 years	20 of 100 (Routine)
16 November 1984	Spreckels Hwy Brg, US	daily rain	19.1 mm (0.8 in)	4.4 mm (0.17 in)	64 years	20 of 100 (Routine)
8 November 1984	Spreckels Hwy Brg, US	daily rain	23.9 mm (0.9 in)	17.5 mm (0.7 in)	62 years	20 of 100 (Routine)
14 August 1984	Spreckels Hwy Brg, US	daily rain (Tie)	0.3 mm (0.01 in)	tie	31 years	4 of 100 (Routine)
1 October 1983	Spreckels Hwy Brg, US	daily rain	8.9 mm (0.35 in)	1.8 mm (0.07 in)	64 years	20 of 100 (Routine)
30 September 1983	Spreckels Hwy Brg, US	daily rain	29.2 mm (1.1 in)	18.0 mm (0.7 in)	64 years	42 of 100 (Notable)
31 August 1983	Spreckels Hwy Brg, US	daily rain	1.5 mm (0.06 in)	1.5 mm (0.06 in)	74 years	20 of 100 (Routine)
28 April 1983	Spreckels Hwy Brg, US	daily rain	24.4 mm (1.0 in)	8.4 mm (0.33 in)	40 years	20 of 100 (Routine)
18 March 1983	Spreckels Hwy Brg, US	daily rain	22.6 mm (0.9 in)	9.9 mm (0.39 in)	40 years	20 of 100 (Routine)
1 March 1983	Spreckels Hwy Brg, US	daily rain	34.0 mm (1.3 in)	11.6 mm (0.5 in)	12 years	25 of 100 (Routine)

Climate Trend

31 complete years, 1908 to 1943

One stripe for each of 31 complete years at Spreckels Hwy Brg, 1908 to 1943. Blue stripes are years cooler than the station's own mean of 13.4 C (56.2 F); red stripes are warmer. The coolest year was 1919, at 12.5 C (54.5 F), and the warmest was 1940, at 14.8 C (58.6 F). The strongest colour marks a difference of 1.4 C (2.5 F).

Annual mean temperature at Spreckels Hwy Brg as warming stripes, 1908 to 1943
Year	Annual mean temperature	Difference from the station mean
1908	13.0 C	-0.45 C
1909	12.8 C	-0.63 C
1910	13.0 C	-0.42 C
1911	13.6 C	+0.14 C
1912	14.0 C	+0.58 C
1914	14.5 C	+1.06 C
1915	13.8 C	+0.33 C
1918	13.1 C	-0.33 C
1919	12.5 C	-0.91 C
1920	12.7 C	-0.74 C
1921	13.2 C	-0.26 C
1922	13.3 C	-0.08 C
1923	13.2 C	-0.26 C
1924	12.8 C	-0.66 C
1925	14.2 C	+0.79 C
1926	14.0 C	+0.56 C
1927	12.9 C	-0.53 C
1928	13.0 C	-0.44 C
1929	13.0 C	-0.38 C
1930	13.4 C	+0.01 C
1931	13.4 C	-0.04 C
1932	12.8 C	-0.61 C
1933	12.6 C	-0.84 C
1934	13.9 C	+0.44 C
1935	12.9 C	-0.49 C
1938	13.5 C	+0.05 C
1939	13.8 C	+0.42 C
1940	14.8 C	+1.35 C
1941	14.7 C	+1.28 C
1942	13.5 C	+0.06 C
1943	14.3 C	+0.91 C

The fitted trend in annual mean temperature here over 1908 to 1943 is 0.19 C (-0.03 to 0.41) per decade. The interval includes zero, so the trend is not clearly different from zero. In Fahrenheit: 0.34 F (-0.05 to 0.73) per decade. The slope is a straight line fitted to 31 complete years; the brackets give its 95 percent interval.

Fitted temperature trends per decade at Spreckels Hwy Brg
Measure	Per decade (C)	Per decade (F)	Period	Complete years	Reading
Annual mean temperature	0.19 C (-0.03 to 0.41) per decade	0.34 F (-0.05 to 0.73) per decade	1908 to 1943	31	Not clearly different from zero
Mean daily maximum	0.24 C (0.01 to 0.47) per decade	0.43 F (0.01 to 0.85) per decade	1908 to 1943	31	Rise
Mean daily minimum	0.1 C (-0.2 to 0.4) per decade	0.3 F (-0.3 to 0.8) per decade	1908 to 1943	31	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

1907 to 1988

Yearly extremes at Spreckels Hwy Brg: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Hottest day (TXx)	41.7 C (107.1 F)	1913	36.1 C (97.0 F)	37
Coldest night (TNn)	-7.8 C (18.0 F)	1913	-4.4 C (24.1 F)	37
Wettest day (Rx1day)	81.3 mm (3.2 in)	1918	30.2 mm (1.2 in)	81
Wettest five days (Rx5day)	123.7 mm (4.9 in)	1921	56.6 mm (2.2 in)	81
Longest dry spell (CDD)	193 days	1932	100 days	81

Hottest day (TXx)

The hottest day of the year at Spreckels Hwy Brg, 1907 to 1988. The record is 41.7 C (107.1 F) in 1913, marked on the chart; the median year is 36.1 C (97.0 F).

Hottest day (TXx) at Spreckels Hwy Brg by year
Year	Hottest day (TXx)
1907	n/a
1908	33.9 C (93.0 F)
1909	38.9 C (102.0 F)
1910	36.7 C (98.1 F)
1911	35.6 C (96.1 F)
1912	37.2 C (99.0 F)
1913	41.7 C (107.1 F)
1914	35.6 C (96.1 F)
1915	32.2 C (90.0 F)
1916	33.9 C (93.0 F)
1917	40.6 C (105.1 F)
1918	37.2 C (99.0 F)
1919	35.6 C (96.1 F)
1920	40.6 C (105.1 F)
1921	40.0 C (104.0 F)
1922	37.2 C (99.0 F)
1923	35.6 C (96.1 F)
1924	36.1 C (97.0 F)
1925	37.8 C (100.0 F)
1926	36.1 C (97.0 F)
1927	35.6 C (96.1 F)
1928	39.4 C (102.9 F)
1929	36.7 C (98.1 F)
1930	36.1 C (97.0 F)
1931	34.4 C (93.9 F)
1932	35.6 C (96.1 F)
1933	36.1 C (97.0 F)
1934	37.2 C (99.0 F)
1935	35.0 C (95.0 F)
1936	36.7 C (98.1 F)
1937	35.6 C (96.1 F)
1938	30.0 C (86.0 F)
1939	40.0 C (104.0 F)
1940	34.4 C (93.9 F)
1941	33.9 C (93.0 F)
1942	37.8 C (100.0 F)
1943	37.8 C (100.0 F)
1944	33.9 C (93.0 F)
1945	n/a
1946	n/a
1947	n/a
1948	n/a
1949	n/a
1950	n/a
1951	n/a
1952	n/a
1953	n/a
1954	n/a
1955	n/a
1956	n/a
1957	n/a
1958	n/a
1959	n/a
1960	n/a
1961	n/a
1962	n/a
1963	n/a
1964	n/a
1965	n/a
1966	n/a
1967	n/a
1968	n/a
1969	n/a
1970	n/a
1971	n/a
1972	n/a
1973	n/a
1974	n/a
1975	n/a
1976	n/a
1977	n/a
1978	n/a
1979	n/a
1980	n/a
1981	n/a
1982	n/a
1983	n/a
1984	n/a
1985	n/a
1986	n/a
1987	n/a
1988	n/a

Coldest night (TNn)

The coldest night of the year at Spreckels Hwy Brg, 1907 to 1988. The record is -7.8 C (18.0 F) in 1913, marked on the chart; the median year is -4.4 C (24.1 F).

Coldest night (TNn) at Spreckels Hwy Brg by year
Year	Coldest night (TNn)
1907	n/a
1908	-4.4 C (24.1 F)
1909	-4.4 C (24.1 F)
1910	-4.4 C (24.1 F)
1911	-5.6 C (21.9 F)
1912	-5.6 C (21.9 F)
1913	-7.8 C (18.0 F)
1914	-2.2 C (28.0 F)
1915	-7.2 C (19.0 F)
1916	-6.1 C (21.0 F)
1917	-6.1 C (21.0 F)
1918	-6.1 C (21.0 F)
1919	-6.7 C (19.9 F)
1920	-4.4 C (24.1 F)
1921	-3.9 C (25.0 F)
1922	-4.4 C (24.1 F)
1923	-6.1 C (21.0 F)
1924	-5.6 C (21.9 F)
1925	-2.2 C (28.0 F)
1926	-3.9 C (25.0 F)
1927	-3.3 C (26.1 F)
1928	-6.7 C (19.9 F)
1929	-5.6 C (21.9 F)
1930	-5.6 C (21.9 F)
1931	-5.6 C (21.9 F)
1932	-5.0 C (23.0 F)
1933	-2.2 C (28.0 F)
1934	-2.8 C (27.0 F)
1935	-4.4 C (24.1 F)
1936	-1.7 C (28.9 F)
1937	-7.2 C (19.0 F)
1938	-3.9 C (25.0 F)
1939	-3.3 C (26.1 F)
1940	-3.3 C (26.1 F)
1941	-1.7 C (28.9 F)
1942	-1.7 C (28.9 F)
1943	-7.2 C (19.0 F)
1944	-1.1 C (30.0 F)
1945	n/a
1946	n/a
1947	n/a
1948	n/a
1949	n/a
1950	n/a
1951	n/a
1952	n/a
1953	n/a
1954	n/a
1955	n/a
1956	n/a
1957	n/a
1958	n/a
1959	n/a
1960	n/a
1961	n/a
1962	n/a
1963	n/a
1964	n/a
1965	n/a
1966	n/a
1967	n/a
1968	n/a
1969	n/a
1970	n/a
1971	n/a
1972	n/a
1973	n/a
1974	n/a
1975	n/a
1976	n/a
1977	n/a
1978	n/a
1979	n/a
1980	n/a
1981	n/a
1982	n/a
1983	n/a
1984	n/a
1985	n/a
1986	n/a
1987	n/a
1988	n/a

Wettest day (Rx1day)

The wettest day of the year at Spreckels Hwy Brg, 1907 to 1988. The record is 81.3 mm (3.2 in) in 1918, marked on the chart; the median year is 30.2 mm (1.2 in).

Wettest day (Rx1day) at Spreckels Hwy Brg by year
Year	Wettest day (Rx1day)
1907	n/a
1908	27.9 mm (1.1 in)
1909	44.2 mm (1.7 in)
1910	44.5 mm (1.8 in)
1911	51.1 mm (2.0 in)
1912	26.7 mm (1.1 in)
1913	24.6 mm (1.0 in)
1914	24.1 mm (0.9 in)
1915	35.6 mm (1.4 in)
1916	37.1 mm (1.5 in)
1917	14.0 mm (0.6 in)
1918	81.3 mm (3.2 in)
1919	40.9 mm (1.6 in)
1920	24.4 mm (1.0 in)
1921	67.8 mm (2.7 in)
1922	38.1 mm (1.5 in)
1923	16.0 mm (0.6 in)
1924	22.1 mm (0.9 in)
1925	33.8 mm (1.3 in)
1926	20.8 mm (0.8 in)
1927	29.5 mm (1.2 in)
1928	24.9 mm (1.0 in)
1929	15.7 mm (0.6 in)
1930	31.0 mm (1.2 in)
1931	43.4 mm (1.7 in)
1932	27.2 mm (1.1 in)
1933	27.4 mm (1.1 in)
1934	22.9 mm (0.9 in)
1935	25.9 mm (1.0 in)
1936	23.9 mm (0.9 in)
1937	48.3 mm (1.9 in)
1938	32.0 mm (1.3 in)
1939	34.0 mm (1.3 in)
1940	38.1 mm (1.5 in)
1941	35.1 mm (1.4 in)
1942	24.1 mm (0.9 in)
1943	20.8 mm (0.8 in)
1944	30.2 mm (1.2 in)
1945	24.9 mm (1.0 in)
1946	43.2 mm (1.7 in)
1947	14.5 mm (0.6 in)
1948	30.5 mm (1.2 in)
1949	18.0 mm (0.7 in)
1950	35.6 mm (1.4 in)
1951	47.0 mm (1.9 in)
1952	35.8 mm (1.4 in)
1953	25.9 mm (1.0 in)
1954	24.6 mm (1.0 in)
1955	66.0 mm (2.6 in)
1956	19.3 mm (0.8 in)
1957	35.6 mm (1.4 in)
1958	26.9 mm (1.1 in)
1959	29.0 mm (1.1 in)
1960	19.8 mm (0.8 in)
1961	23.1 mm (0.9 in)
1962	31.0 mm (1.2 in)
1963	42.4 mm (1.7 in)
1964	22.6 mm (0.9 in)
1965	32.0 mm (1.3 in)
1966	46.7 mm (1.8 in)
1967	23.6 mm (0.9 in)
1968	27.4 mm (1.1 in)
1969	44.7 mm (1.8 in)
1970	40.4 mm (1.6 in)
1971	23.9 mm (0.9 in)
1972	30.2 mm (1.2 in)
1973	40.1 mm (1.6 in)
1974	55.6 mm (2.2 in)
1975	27.7 mm (1.1 in)
1976	29.0 mm (1.1 in)
1977	43.9 mm (1.7 in)
1978	32.3 mm (1.3 in)
1979	21.8 mm (0.9 in)
1980	22.6 mm (0.9 in)
1981	34.8 mm (1.4 in)
1982	32.0 mm (1.3 in)
1983	34.0 mm (1.3 in)
1984	24.4 mm (1.0 in)
1985	30.5 mm (1.2 in)
1986	29.5 mm (1.2 in)
1987	35.6 mm (1.4 in)
1988	0.0 mm (0.00 in)

Wettest five days (Rx5day)

The wettest five days of the year at Spreckels Hwy Brg, 1907 to 1988. The record is 123.7 mm (4.9 in) in 1921, marked on the chart; the median year is 56.6 mm (2.2 in).

Wettest five days (Rx5day) at Spreckels Hwy Brg by year
Year	Wettest five days (Rx5day)
1907	n/a
1908	53.9 mm (2.1 in)
1909	72.8 mm (2.9 in)
1910	99.6 mm (3.9 in)
1911	87.2 mm (3.4 in)
1912	66.4 mm (2.6 in)
1913	35.9 mm (1.4 in)
1914	61.9 mm (2.4 in)
1915	86.3 mm (3.4 in)
1916	57.7 mm (2.3 in)
1917	34.2 mm (1.3 in)
1918	38.0 mm (1.5 in)
1919	66.3 mm (2.6 in)
1920	37.9 mm (1.5 in)
1921	123.7 mm (4.9 in)
1922	66.1 mm (2.6 in)
1923	35.6 mm (1.4 in)
1924	35.2 mm (1.4 in)
1925	37.1 mm (1.5 in)
1926	47.5 mm (1.9 in)
1927	35.0 mm (1.4 in)
1928	42.4 mm (1.7 in)
1929	23.6 mm (0.9 in)
1930	58.4 mm (2.3 in)
1931	77.2 mm (3.0 in)
1932	55.3 mm (2.2 in)
1933	53.1 mm (2.1 in)
1934	39.4 mm (1.6 in)
1935	55.1 mm (2.2 in)
1936	64.6 mm (2.5 in)
1937	86.4 mm (3.4 in)
1938	64.5 mm (2.5 in)
1939	36.1 mm (1.4 in)
1940	70.1 mm (2.8 in)
1941	86.9 mm (3.4 in)
1942	66.1 mm (2.6 in)
1943	43.3 mm (1.7 in)
1944	51.4 mm (2.0 in)
1945	53.6 mm (2.1 in)
1946	43.7 mm (1.7 in)
1947	23.3 mm (0.9 in)
1948	42.2 mm (1.7 in)
1949	33.0 mm (1.3 in)
1950	50.1 mm (2.0 in)
1951	79.8 mm (3.1 in)
1952	79.8 mm (3.1 in)
1953	29.7 mm (1.2 in)
1954	49.4 mm (1.9 in)
1955	118.1 mm (4.6 in)
1956	53.9 mm (2.1 in)
1957	35.8 mm (1.4 in)
1958	71.6 mm (2.8 in)
1959	63.2 mm (2.5 in)
1960	45.2 mm (1.8 in)
1961	27.2 mm (1.1 in)
1962	53.3 mm (2.1 in)
1963	64.8 mm (2.6 in)
1964	56.9 mm (2.2 in)
1965	67.9 mm (2.7 in)
1966	73.4 mm (2.9 in)
1967	54.8 mm (2.2 in)
1968	56.6 mm (2.2 in)
1969	110.5 mm (4.4 in)
1970	80.8 mm (3.2 in)
1971	42.7 mm (1.7 in)
1972	74.2 mm (2.9 in)
1973	68.5 mm (2.7 in)
1974	69.5 mm (2.7 in)
1975	58.7 mm (2.3 in)
1976	45.5 mm (1.8 in)
1977	68.1 mm (2.7 in)
1978	68.0 mm (2.7 in)
1979	46.7 mm (1.8 in)
1980	73.5 mm (2.9 in)
1981	82.6 mm (3.3 in)
1982	82.4 mm (3.2 in)
1983	72.3 mm (2.8 in)
1984	40.9 mm (1.6 in)
1985	49.3 mm (1.9 in)
1986	64.6 mm (2.5 in)
1987	39.4 mm (1.6 in)
1988	0.0 mm (0.00 in)

Longest dry spell (CDD)

The longest dry spell of the year at Spreckels Hwy Brg, 1907 to 1988. The record is 193 days in 1932, marked on the chart; the median year is 100 days.

Longest dry spell (CDD) at Spreckels Hwy Brg by year
Year	Longest dry spell (CDD)
1907	n/a
1908	46 days
1909	30 days
1910	110 days
1911	117 days
1912	74 days
1913	91 days
1914	92 days
1915	70 days
1916	80 days
1917	39 days
1918	30 days
1919	35 days
1920	57 days
1921	18 days
1922	25 days
1923	43 days
1924	35 days
1925	49 days
1926	135 days
1927	140 days
1928	178 days
1929	177 days
1930	142 days
1931	159 days
1932	193 days
1933	126 days
1934	109 days
1935	118 days
1936	99 days
1937	106 days
1938	138 days
1939	88 days
1940	135 days
1941	160 days
1942	137 days
1943	172 days
1944	113 days
1945	30 days
1946	126 days
1947	135 days
1948	132 days
1949	100 days
1950	123 days
1951	173 days
1952	83 days
1953	126 days
1954	152 days
1955	189 days
1956	130 days
1957	109 days
1958	85 days
1959	127 days
1960	128 days
1961	85 days
1962	121 days
1963	124 days
1964	57 days
1965	81 days
1966	65 days
1967	100 days
1968	96 days
1969	89 days
1970	133 days
1971	88 days
1972	143 days
1973	175 days
1974	83 days
1975	81 days
1976	55 days
1977	101 days
1978	133 days
1979	83 days
1980	99 days
1981	141 days
1982	84 days
1983	49 days
1984	126 days
1985	50 days
1986	84 days
1987	19 days
1988	31 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

30 years with a frost

Across 30 years with a frost, the median last spring frost at Spreckels Hwy Brg falls on 27 March and the median first autumn frost on 3 November, which leaves a median of 212 days between them.

Fitted over all years, the growing season changes by +14.5 days per decade at this station.

Frost dates and growing season at Spreckels Hwy Brg
Measure	Median, all years	Earliest period	Recent period (1908 to 1943)	Recent against earliest	Fitted trend
Last spring frost	27 March	n/a	27 March	n/a	-8.2 days per decade
First autumn frost	3 November	n/a	3 November	n/a	+6.3 days per decade
Growing days	212 days	n/a	212 days	n/a	+14.5 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

61 years, 1910 to 1985

A day with at least 29.7 mm (1.2 in) of rain is expected about once in 2 years. A day with at least 65.3 mm (2.6 in) of rain is expected about once in 100 years.

Rainfall return levels at Spreckels Hwy Brg: the daily rain expected about once in a given number of years
Expected about once in	A day with at least	Note
2 years	29.7 mm (1.2 in)
5 years	38.7 mm (1.5 in)
10 years	44.9 mm (1.8 in)
25 years	52.9 mm (2.1 in)
50 years	59.1 mm (2.3 in)
100 years	65.3 mm (2.6 in)	Longer than the 61 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, 61 years of values from 1910 to 1985.

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: 66.0 mm (2.6 in) in 1955; 55.6 mm (2.2 in) in 1974; 51.1 mm (2.0 in) in 1911.

Download the Data

Data for Spreckels Hwy Brg standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Spreckels Hwy Brg threshold days by year: CSV or JSON. Field meanings are on the data page.

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 2026-10-14 (14 October 2026). Records are computed by this site and are not official.

Data as of 2025-12-31. Last revised 31 December 2025 (2025-12-31).