San Ardo Weather Records (USC00047716)

Record envelope, standing records and threshold days for San Ardo (USC00047716), California, United States, with 85 years of record.

Key Facts for San Ardo

San Ardo (USC00047716) is a weather station in California, United States at 36.03 latitude and -120.90 longitude, 137 m (449 ft) above sea level.
The station reports from 1893 to 1977, 85 years of record.
1,460 records set at San Ardo still stand.
Records are tracked for no element yet: an element needs 30 years of data to be eligible.

About the Station

Location: California, United States, 36.03 latitude, -120.90 longitude.
Elevation: 137 m (449 ft).
Period of record: 1893 to 1977, 85 years.
Eligible elements: none yet.

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 San Ardo. 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 San Ardo, with 2026 drawn through them
Month	Highest record high	Lowest record low	2026 highest maximum	2026 lowest minimum
Jan	23.9 C (75.0 F)	-7.2 C (19.0 F)	n/a	n/a
Feb	21.1 C (70.0 F)	-2.8 C (27.0 F)	n/a	n/a
Mar	28.9 C (84.0 F)	-2.2 C (28.0 F)	n/a	n/a
Apr	30.0 C (86.0 F)	-1.7 C (28.9 F)	n/a	n/a
May	33.3 C (91.9 F)	1.1 C (34.0 F)	n/a	n/a
Jun	40.6 C (105.1 F)	1.7 C (35.1 F)	n/a	n/a
Jul	43.9 C (111.0 F)	3.9 C (39.0 F)	n/a	n/a
Aug	42.8 C (109.0 F)	5.0 C (41.0 F)	n/a	n/a
Sep	36.1 C (97.0 F)	1.7 C (35.1 F)	n/a	n/a
Oct	36.7 C (98.1 F)	0.0 C (32.0 F)	n/a	n/a
Nov	32.8 C (91.0 F)	-3.3 C (26.1 F)	n/a	n/a
Dec	26.7 C (80.1 F)	-1.1 C (30.0 F)	n/a	n/a

Which Years Hold Standing Records

1,460 standing records

1,460 records at San Ardo still stand. 1893 holds the most, with 1,399.

Wettest Day of Each Month

Dec: 61.0 mm (2.4 in)

The wettest day on record for each calendar month at San Ardo. The most was 61.0 mm (2.4 in) on 13 December 1906.

Record daily precipitation for each month at San Ardo
Month	Record daily precipitation (mm)	Date
Jan	58.4 mm (2.3 in)	26 January 1909
Feb	51.3 mm (2.0 in)	10 February 1963
Mar	52.1 mm (2.1 in)	5 March 1907
Apr	30.5 mm (1.2 in)	6 April 1969
May	24.1 mm (0.9 in)	9 May 1977
Jun	17.5 mm (0.7 in)	5 June 1967
Jul	3.8 mm (0.15 in)	30 July 1966
Aug	19.1 mm (0.8 in)	20 August 1976
Sep	44.5 mm (1.8 in)	29 September 1976
Oct	49.5 mm (1.9 in)	10 October 1916
Nov	41.9 mm (1.6 in)	23 November 1965
Dec	61.0 mm (2.4 in)	13 December 1906

Period of Record Coverage

1893 to 1894

2 years of record at San Ardo, 1893 to 1894. 1 years have data for under 90 percent of days and are left out of rankings: 1894.

Latest Records

No records were set at this station in the latest data.

Extremes by Year

1893 to 1977

Yearly extremes at San Ardo: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Hottest day (TXx)	43.9 C (111.0 F)	1893	33.4 C (92.0 F)	2
Coldest night (TNn)	-7.2 C (19.0 F)	1894	-5.2 C (22.6 F)	2
Wettest day (Rx1day)	61.0 mm (2.4 in)	1906	38.3 mm (1.5 in)	30
Wettest five days (Rx5day)	171.0 mm (6.7 in)	1969	68.9 mm (2.7 in)	27
Longest dry spell (CDD)	243 days	1970	116 days	25

Hottest day (TXx)

The hottest day of the year at San Ardo, 1893 to 1977. The record is 43.9 C (111.0 F) in 1893, marked on the chart; the median year is 33.4 C (92.0 F).

Hottest day (TXx) at San Ardo by year
Year	Hottest day (TXx)
1893	43.9 C (111.0 F)
1894	22.8 C (73.0 F)
1906	n/a
1907	n/a
1908	n/a
1909	n/a
1910	n/a
1911	n/a
1915	n/a
1916	n/a
1917	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

Coldest night (TNn)

The coldest night of the year at San Ardo, 1893 to 1977. The record is -7.2 C (19.0 F) in 1894, marked on the chart; the median year is -5.2 C (22.6 F).

Coldest night (TNn) at San Ardo by year
Year	Coldest night (TNn)
1893	-3.3 C (26.1 F)
1894	-7.2 C (19.0 F)
1906	n/a
1907	n/a
1908	n/a
1909	n/a
1910	n/a
1911	n/a
1915	n/a
1916	n/a
1917	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

Wettest day (Rx1day)

The wettest day of the year at San Ardo, 1893 to 1977. The record is 61.0 mm (2.4 in) in 1906, marked on the chart; the median year is 38.3 mm (1.5 in).

Wettest day (Rx1day) at San Ardo by year
Year	Wettest day (Rx1day)
1893	25.4 mm (1.0 in)
1894	15.7 mm (0.6 in)
1906	61.0 mm (2.4 in)
1907	52.1 mm (2.1 in)
1908	26.7 mm (1.1 in)
1909	58.4 mm (2.3 in)
1910	8.6 mm (0.34 in)
1911	0.0 mm (0.00 in)
1915	47.8 mm (1.9 in)
1916	49.5 mm (1.9 in)
1917	33.0 mm (1.3 in)
1959	5.3 mm (0.21 in)
1960	41.7 mm (1.6 in)
1961	48.3 mm (1.9 in)
1962	40.6 mm (1.6 in)
1963	51.3 mm (2.0 in)
1964	31.0 mm (1.2 in)
1965	41.9 mm (1.6 in)
1966	47.0 mm (1.9 in)
1967	31.0 mm (1.2 in)
1968	29.2 mm (1.1 in)
1969	55.9 mm (2.2 in)
1970	41.9 mm (1.6 in)
1971	23.9 mm (0.9 in)
1972	34.8 mm (1.4 in)
1973	29.7 mm (1.2 in)
1974	38.4 mm (1.5 in)
1975	38.1 mm (1.5 in)
1976	44.7 mm (1.8 in)
1977	24.9 mm (1.0 in)

Wettest five days (Rx5day)

The wettest five days of the year at San Ardo, 1893 to 1977. The record is 171.0 mm (6.7 in) in 1969, marked on the chart; the median year is 68.9 mm (2.7 in).

Wettest five days (Rx5day) at San Ardo by year
Year	Wettest five days (Rx5day)
1893	94.0 mm (3.7 in)
1894	22.8 mm (0.9 in)
1906	81.8 mm (3.2 in)
1907	101.0 mm (4.0 in)
1908	85.3 mm (3.4 in)
1909	52.1 mm (2.1 in)
1910	n/a
1911	0.0 mm (0.00 in)
1915	n/a
1916	n/a
1917	59.6 mm (2.3 in)
1959	8.9 mm (0.35 in)
1960	47.6 mm (1.9 in)
1961	52.4 mm (2.1 in)
1962	97.6 mm (3.8 in)
1963	114.0 mm (4.5 in)
1964	41.4 mm (1.6 in)
1965	104.7 mm (4.1 in)
1966	75.9 mm (3.0 in)
1967	60.5 mm (2.4 in)
1968	36.8 mm (1.4 in)
1969	171.0 mm (6.7 in)
1970	74.9 mm (2.9 in)
1971	25.5 mm (1.0 in)
1972	68.9 mm (2.7 in)
1973	55.1 mm (2.2 in)
1974	133.1 mm (5.2 in)
1975	71.7 mm (2.8 in)
1976	91.7 mm (3.6 in)
1977	37.0 mm (1.5 in)

Longest dry spell (CDD)

The longest dry spell of the year at San Ardo, 1893 to 1977. The record is 243 days in 1970, marked on the chart; the median year is 116 days.

Longest dry spell (CDD) at San Ardo by year
Year	Longest dry spell (CDD)
1893	86 days
1894	12 days
1906	22 days
1907	15 days
1908	n/a
1909	n/a
1910	n/a
1911	31 days
1915	n/a
1916	n/a
1917	1 day
1959	84 days
1960	154 days
1961	105 days
1962	204 days
1963	131 days
1964	116 days
1965	122 days
1966	149 days
1967	108 days
1968	120 days
1969	153 days
1970	243 days
1971	166 days
1972	108 days
1973	176 days
1974	160 days
1975	124 days
1976	69 days
1977	66 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 San Ardo standing records by year: CSV or JSON. Field meanings are on the data page.
Data for San Ardo 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).

Year	Days with data	Share of year	Complete
1893	365	100%	Yes
1894	31	8%	No