Oakville 1 WNW Weather Records (USC00046351)

Record envelope, standing records and threshold days for Oakville 1 WNW (USC00046351), California, United States, with 76 years of record.

Key Facts for Oakville 1 WNW

Oakville 1 WNW (USC00046351) is a weather station in California, United States at 38.45 latitude and -122.42 longitude, 49 m (161 ft) above sea level.
The station reports from 1906 to 1981, 76 years of record.
1,464 records set at Oakville 1 WNW still stand.
Records are tracked for prcp: an element needs 30 years of data to be eligible.
Oakville 1 WNW set a daily record precipitation of 45.7 mm (1.8 in) on 28 January 1981.

About the Station

Location: California, United States, 38.45 latitude, -122.42 longitude.
Elevation: 49 m (161 ft).
Period of record: 1906 to 1981, 76 years.
Eligible elements: prcp.

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 Oakville 1 WNW. 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 Oakville 1 WNW, with 2026 drawn through them
Month	Highest record high	Lowest record low	2026 highest maximum	2026 lowest minimum
Jan	25.0 C (77.0 F)	-8.3 C (17.1 F)	n/a	n/a
Feb	23.3 C (73.9 F)	-7.8 C (18.0 F)	n/a	n/a
Mar	35.0 C (95.0 F)	-7.2 C (19.0 F)	n/a	n/a
Apr	33.9 C (93.0 F)	-5.0 C (23.0 F)	n/a	n/a
May	41.1 C (106.0 F)	-2.2 C (28.0 F)	n/a	n/a
Jun	42.8 C (109.0 F)	-0.6 C (30.9 F)	n/a	n/a
Jul	41.1 C (106.0 F)	3.9 C (39.0 F)	n/a	n/a
Aug	40.6 C (105.1 F)	1.1 C (34.0 F)	n/a	n/a
Sep	40.6 C (105.1 F)	-1.1 C (30.0 F)	n/a	n/a
Oct	36.7 C (98.1 F)	-2.8 C (27.0 F)	n/a	n/a
Nov	28.9 C (84.0 F)	-6.1 C (21.0 F)	n/a	n/a
Dec	23.3 C (73.9 F)	-8.3 C (17.1 F)	n/a	n/a

Which Years Hold Standing Records

1,464 standing records

1,464 records at Oakville 1 WNW still stand. 1913 holds the most, with 274.

Wettest Day of Each Month

Dec: 166.4 mm (6.6 in)

The wettest day on record for each calendar month at Oakville 1 WNW. The most was 166.4 mm (6.6 in) on 19 December 1955.

Record daily precipitation for each month at Oakville 1 WNW
Month	Record daily precipitation (mm)	Date
Jan	133.4 mm (5.3 in)	11 January 1979
Feb	115.6 mm (4.6 in)	8 February 1960
Mar	102.6 mm (4.0 in)	21 March 1907
Apr	67.8 mm (2.7 in)	27 April 1953
May	20.3 mm (0.8 in)	18 May 1957
Jun	29.2 mm (1.1 in)	11 June 1958
Jul	30.0 mm (1.2 in)	8 July 1974
Aug	8.1 mm (0.32 in)	22 August 1976
Sep	68.6 mm (2.7 in)	18 September 1959
Oct	126.5 mm (5.0 in)	12 October 1962
Nov	100.8 mm (4.0 in)	28 November 1970
Dec	166.4 mm (6.6 in)	19 December 1955

Period of Record Coverage

1906 to 1914

9 years of record at Oakville 1 WNW, 1906 to 1914. 2 years have data for under 90 percent of days and are left out of rankings: 1906, 1914.

Days with data per year at Oakville 1 WNW
Year	Days with data	Share of year	Complete
1906	244	67%	No
1907	359	98%	Yes
1908	352	96%	Yes
1909	364	100%	Yes
1910	365	100%	Yes
1911	364	100%	Yes
1912	366	100%	Yes
1913	363	99%	Yes
1914	150	41%	No

Latest Records

Latest records at Oakville 1 WNW
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
28 January 1981	Oakville 1 WNW, US	daily rain	45.7 mm (1.8 in)	3.0 mm (0.12 in)	70 years	29 of 100 (Routine)
27 January 1981	Oakville 1 WNW, US	daily rain	52.6 mm (2.1 in)	22.6 mm (0.9 in)	74 years	40 of 100 (Notable)
3 December 1980	Oakville 1 WNW, US	daily rain	90.2 mm (3.6 in)	56.7 mm (2.2 in)	6 years	35 of 100 (Notable)
2 July 1980	Oakville 1 WNW, US	daily rain	5.6 mm (0.22 in)	5.6 mm (0.22 in)	70 years	20 of 100 (Routine)
4 June 1980	Oakville 1 WNW, US	daily rain	3.0 mm (0.12 in)	3.0 mm (0.12 in)	73 years	20 of 100 (Routine)
24 December 1979	Oakville 1 WNW, US	daily rain	56.1 mm (2.2 in)	9.1 mm (0.36 in)	9 years	13 of 100 (Routine)
25 October 1979	Oakville 1 WNW, US	daily rain	76.7 mm (3.0 in)	38.1 mm (1.5 in)	28 years	36 of 100 (Notable)
20 October 1979	Oakville 1 WNW, US	daily rain	9.1 mm (0.36 in)	6.6 mm (0.26 in)	8 years	12 of 100 (Routine)
19 October 1979	Oakville 1 WNW, US	daily rain	43.9 mm (1.7 in)	30.7 mm (1.2 in)	69 years	44 of 100 (Notable)
7 May 1979	Oakville 1 WNW, US	daily rain	3.6 mm (0.14 in)	3.1 mm (0.12 in)	16 years	17 of 100 (Routine)
6 May 1979	Oakville 1 WNW, US	daily rain	1.8 mm (0.07 in)	0.8 mm (0.03 in)	17 years	13 of 100 (Routine)
5 May 1979	Oakville 1 WNW, US	daily rain	7.6 mm (0.30 in)	5.1 mm (0.20 in)	22 years	20 of 100 (Routine)
24 April 1979	Oakville 1 WNW, US	daily rain	19.1 mm (0.8 in)	7.4 mm (0.29 in)	4 years	14 of 100 (Routine)
16 April 1979	Oakville 1 WNW, US	daily rain	4.8 mm (0.19 in)	1.0 mm (0.04 in)	0 years	7 of 100 (Routine)
27 March 1979	Oakville 1 WNW, US	daily rain	39.9 mm (1.6 in)	23.4 mm (0.9 in)	4 years	23 of 100 (Routine)
13 February 1979	Oakville 1 WNW, US	daily rain	63.5 mm (2.5 in)	7.4 mm (0.29 in)	16 years	16 of 100 (Routine)
11 January 1979	Oakville 1 WNW, US	monthly rain	133.4 mm (5.3 in)	36.9 mm (1.5 in)	20 years	42 of 100 (Notable)
7 January 1979	Oakville 1 WNW, US	daily rain	54.1 mm (2.1 in)	14.2 mm (0.6 in)	25 years	21 of 100 (Routine)
10 September 1978	Oakville 1 WNW, US	daily rain	0.8 mm (0.03 in)	0.8 mm (0.03 in)	69 years	20 of 100 (Routine)
9 September 1978	Oakville 1 WNW, US	daily rain	15.7 mm (0.6 in)	15.7 mm (0.6 in)	69 years	20 of 100 (Routine)

Extremes by Year

1906 to 1981

Yearly extremes at Oakville 1 WNW: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Hottest day (TXx)	42.8 C (109.0 F)	1909	38.9 C (102.0 F)	9
Coldest night (TNn)	-8.3 C (17.1 F)	1912	-5.6 C (21.9 F)	9
Wettest day (Rx1day)	166.4 mm (6.6 in)	1955	74.2 mm (2.9 in)	43
Wettest five days (Rx5day)	409.0 mm (16.1 in)	1955	160.1 mm (6.3 in)	43
Longest dry spell (CDD)	173 days	1969	101 days	43

Hottest day (TXx)

The hottest day of the year at Oakville 1 WNW, 1906 to 1981. The record is 42.8 C (109.0 F) in 1909, marked on the chart; the median year is 38.9 C (102.0 F).

Hottest day (TXx) at Oakville 1 WNW by year
Year	Hottest day (TXx)
1906	40.0 C (104.0 F)
1907	36.7 C (98.1 F)
1908	38.3 C (100.9 F)
1909	42.8 C (109.0 F)
1910	41.1 C (106.0 F)
1911	35.6 C (96.1 F)
1912	38.3 C (100.9 F)
1913	41.1 C (106.0 F)
1914	38.9 C (102.0 F)
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

Coldest night (TNn)

The coldest night of the year at Oakville 1 WNW, 1906 to 1981. The record is -8.3 C (17.1 F) in 1912, marked on the chart; the median year is -5.6 C (21.9 F).

Coldest night (TNn) at Oakville 1 WNW by year
Year	Coldest night (TNn)
1906	-4.4 C (24.1 F)
1907	-5.6 C (21.9 F)
1908	-6.7 C (19.9 F)
1909	-5.0 C (23.0 F)
1910	-4.4 C (24.1 F)
1911	-6.7 C (19.9 F)
1912	-8.3 C (17.1 F)
1913	-8.3 C (17.1 F)
1914	-2.2 C (28.0 F)
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

Wettest day (Rx1day)

The wettest day of the year at Oakville 1 WNW, 1906 to 1981. The record is 166.4 mm (6.6 in) in 1955, marked on the chart; the median year is 74.2 mm (2.9 in).

Wettest day (Rx1day) at Oakville 1 WNW by year
Year	Wettest day (Rx1day)
1906	95.3 mm (3.8 in)
1907	102.6 mm (4.0 in)
1908	36.6 mm (1.4 in)
1909	74.2 mm (2.9 in)
1910	66.5 mm (2.6 in)
1911	99.1 mm (3.9 in)
1912	50.8 mm (2.0 in)
1913	146.1 mm (5.8 in)
1914	71.1 mm (2.8 in)
1948	29.7 mm (1.2 in)
1949	50.3 mm (2.0 in)
1950	17.8 mm (0.7 in)
1951	53.3 mm (2.1 in)
1952	71.4 mm (2.8 in)
1953	74.9 mm (2.9 in)
1954	26.7 mm (1.1 in)
1955	166.4 mm (6.6 in)
1956	105.7 mm (4.2 in)
1957	74.4 mm (2.9 in)
1958	71.6 mm (2.8 in)
1959	96.5 mm (3.8 in)
1960	115.6 mm (4.6 in)
1961	98.6 mm (3.9 in)
1962	126.5 mm (5.0 in)
1963	40.6 mm (1.6 in)
1964	55.9 mm (2.2 in)
1965	80.0 mm (3.1 in)
1966	78.7 mm (3.1 in)
1967	31.2 mm (1.2 in)
1968	94.0 mm (3.7 in)
1969	79.8 mm (3.1 in)
1970	100.8 mm (4.0 in)
1971	51.3 mm (2.0 in)
1972	43.4 mm (1.7 in)
1973	72.9 mm (2.9 in)
1974	48.5 mm (1.9 in)
1975	51.1 mm (2.0 in)
1976	39.4 mm (1.6 in)
1977	77.0 mm (3.0 in)
1978	83.8 mm (3.3 in)
1979	133.4 mm (5.3 in)
1980	90.2 mm (3.6 in)
1981	52.6 mm (2.1 in)

Wettest five days (Rx5day)

The wettest five days of the year at Oakville 1 WNW, 1906 to 1981. The record is 409.0 mm (16.1 in) in 1955, marked on the chart; the median year is 160.1 mm (6.3 in).

Wettest five days (Rx5day) at Oakville 1 WNW by year
Year	Wettest five days (Rx5day)
1906	137.2 mm (5.4 in)
1907	258.6 mm (10.2 in)
1908	82.3 mm (3.2 in)
1909	186.7 mm (7.4 in)
1910	84.6 mm (3.3 in)
1911	227.2 mm (8.9 in)
1912	90.3 mm (3.6 in)
1913	161.1 mm (6.3 in)
1914	227.1 mm (8.9 in)
1948	56.4 mm (2.2 in)
1949	112.8 mm (4.4 in)
1950	15.7 mm (0.6 in)
1951	53.3 mm (2.1 in)
1952	91.4 mm (3.6 in)
1953	90.7 mm (3.6 in)
1954	14.5 mm (0.6 in)
1955	409.0 mm (16.1 in)
1956	235.7 mm (9.3 in)
1957	166.1 mm (6.5 in)
1958	196.3 mm (7.7 in)
1959	205.1 mm (8.1 in)
1960	171.3 mm (6.7 in)
1961	172.2 mm (6.8 in)
1962	281.4 mm (11.1 in)
1963	67.3 mm (2.6 in)
1964	160.1 mm (6.3 in)
1965	180.6 mm (7.1 in)
1966	130.6 mm (5.1 in)
1967	67.2 mm (2.6 in)
1968	161.6 mm (6.4 in)
1969	169.5 mm (6.7 in)
1970	195.8 mm (7.7 in)
1971	101.9 mm (4.0 in)
1972	117.3 mm (4.6 in)
1973	195.0 mm (7.7 in)
1974	113.0 mm (4.4 in)
1975	141.3 mm (5.6 in)
1976	56.2 mm (2.2 in)
1977	115.1 mm (4.5 in)
1978	202.9 mm (8.0 in)
1979	209.6 mm (8.3 in)
1980	238.7 mm (9.4 in)
1981	123.7 mm (4.9 in)

Longest dry spell (CDD)

The longest dry spell of the year at Oakville 1 WNW, 1906 to 1981. The record is 173 days in 1969, marked on the chart; the median year is 101 days.

Longest dry spell (CDD) at Oakville 1 WNW by year
Year	Longest dry spell (CDD)
1906	8 days
1907	36 days
1908	43 days
1909	30 days
1910	155 days
1911	149 days
1912	73 days
1913	126 days
1914	32 days
1948	77 days
1949	110 days
1950	154 days
1951	147 days
1952	99 days
1953	83 days
1954	25 days
1955	140 days
1956	71 days
1957	108 days
1958	81 days
1959	117 days
1960	133 days
1961	70 days
1962	123 days
1963	113 days
1964	34 days
1965	27 days
1966	47 days
1967	13 days
1968	86 days
1969	173 days
1970	130 days
1971	124 days
1972	108 days
1973	118 days
1974	109 days
1975	81 days
1976	66 days
1977	112 days
1978	135 days
1979	154 days
1980	101 days
1981	72 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.

Download the Data

Data for Oakville 1 WNW standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Oakville 1 WNW 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 2026-10-17 (17 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).