Mariposa Weather Records (USC00045346)

Record envelope, standing records and threshold days for Mariposa (USC00045346), California, United States, with 92 years of record.

Key Facts for Mariposa

Mariposa (USC00045346) is a weather station in California, United States at 37.48 latitude and -119.97 longitude, 613 m (2,011 ft) above sea level.
The station reports from 1893 to 1984, 92 years of record.
1,452 records set at Mariposa still stand.
Records are tracked for prcp, snow, snwd: an element needs 30 years of data to be eligible.
Mariposa set a daily record precipitation of 42.2 mm (1.7 in) on 26 December 1983.

About the Station

Location: California, United States, 37.48 latitude, -119.97 longitude.
Elevation: 613 m (2,011 ft).
Period of record: 1893 to 1984, 92 years.
Eligible elements: 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 Mariposa. 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 Mariposa, with 2026 drawn through them
Month	Highest record high	Lowest record low	2026 highest maximum	2026 lowest minimum
Jan	20.0 C (68.0 F)	-5.6 C (21.9 F)	n/a	n/a
Feb	21.1 C (70.0 F)	0.0 C (32.0 F)	n/a	n/a
Mar	26.1 C (79.0 F)	-3.3 C (26.1 F)	n/a	n/a
Apr	28.9 C (84.0 F)	2.8 C (37.0 F)	n/a	n/a
May	31.1 C (88.0 F)	7.2 C (45.0 F)	n/a	n/a
Jun	35.0 C (95.0 F)	10.6 C (51.1 F)	n/a	n/a
Jul	40.0 C (104.0 F)	15.6 C (60.1 F)	n/a	n/a
Aug	39.4 C (102.9 F)	17.2 C (63.0 F)	n/a	n/a
Sep	33.3 C (91.9 F)	7.8 C (46.0 F)	n/a	n/a
Oct	32.2 C (90.0 F)	3.3 C (37.9 F)	n/a	n/a
Nov	26.1 C (79.0 F)	1.7 C (35.1 F)	n/a	n/a
Dec	22.2 C (72.0 F)	-1.7 C (28.9 F)	n/a	n/a

Which Years Hold Standing Records

1,452 standing records

1,452 records at Mariposa still stand. 1893 holds the most, with 748.

All-Time Record Progression

1 new records

1 all-time records were set at Mariposa between 19 November 1950 and 19 November 1950. Each dot is a new record.

Wettest Day of Each Month

Nov: 185.4 mm (7.3 in)

The wettest day on record for each calendar month at Mariposa. The most was 185.4 mm (7.3 in) on 19 November 1950.

Record daily precipitation for each month at Mariposa
Month	Record daily precipitation (mm)	Date
Jan	122.7 mm (4.8 in)	19 January 1969
Feb	117.3 mm (4.6 in)	1 February 1963
Mar	73.9 mm (2.9 in)	23 March 1928
Apr	71.9 mm (2.8 in)	2 April 1974
May	57.7 mm (2.3 in)	19 May 1957
Jun	40.6 mm (1.6 in)	9 June 1970
Jul	18.8 mm (0.7 in)	10 July 1974
Aug	17.8 mm (0.7 in)	15 August 1976
Sep	133.1 mm (5.2 in)	19 September 1959
Oct	70.9 mm (2.8 in)	14 October 1962
Nov	185.4 mm (7.3 in)	19 November 1950
Dec	165.1 mm (6.5 in)	23 December 1955

Period of Record Coverage

1893 to 1895

3 years of record at Mariposa, 1893 to 1895. 3 years have data for under 90 percent of days and are left out of rankings: 1893, 1894, 1895.

Latest Records

Latest records at Mariposa
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
26 December 1983	Mariposa, US	daily rain	42.2 mm (1.7 in)	9.9 mm (0.39 in)	14 years	18 of 100 (Routine)
25 December 1983	Mariposa, US	daily rain	54.9 mm (2.2 in)	1.6 mm (0.06 in)	52 years	24 of 100 (Routine)
31 August 1983	Mariposa, US	daily rain	1.3 mm (0.05 in)	1.3 mm (0.05 in)	72 years	20 of 100 (Routine)
11 June 1983	Mariposa, US	daily rain	0.5 mm (0.02 in)	0.5 mm (0.02 in)	89 years	20 of 100 (Routine)
24 April 1983	Mariposa, US	daily rain	32.8 mm (1.3 in)	12.2 mm (0.5 in)	22 years	24 of 100 (Routine)
21 March 1983	Mariposa, US	daily rain	43.9 mm (1.7 in)	13.9 mm (0.5 in)	62 years	37 of 100 (Notable)
1 March 1983	Mariposa, US	daily rain	53.8 mm (2.1 in)	6.3 mm (0.25 in)	44 years	26 of 100 (Routine)
7 February 1983	Mariposa, US	daily rain	66.0 mm (2.6 in)	22.3 mm (0.9 in)	64 years	40 of 100 (Notable)
27 January 1983	Mariposa, US	daily rain	61.0 mm (2.4 in)	10.7 mm (0.4 in)	1 year	14 of 100 (Routine)
22 December 1982	Mariposa, US	daily rain	87.9 mm (3.5 in)	21.9 mm (0.9 in)	27 years	29 of 100 (Routine)
30 November 1982	Mariposa, US	daily rain	54.9 mm (2.2 in)	19.1 mm (0.8 in)	12 years	22 of 100 (Routine)
26 October 1982	Mariposa, US	daily rain	40.1 mm (1.6 in)	11.1 mm (0.4 in)	55 years	33 of 100 (Routine)
22 October 1982	Mariposa, US	daily rain	10.9 mm (0.4 in)	5.8 mm (0.23 in)	48 years	20 of 100 (Routine)
26 September 1982	Mariposa, US	daily rain	47.2 mm (1.9 in)	44.9 mm (1.8 in)	51 years	54 of 100 (Notable)
16 September 1982	Mariposa, US	daily rain	1.8 mm (0.07 in)	1.0 mm (0.04 in)	72 years	20 of 100 (Routine)
1 July 1982	Mariposa, US	daily rain	7.1 mm (0.28 in)	6.8 mm (0.27 in)	65 years	20 of 100 (Routine)
30 June 1982	Mariposa, US	daily rain	4.1 mm (0.16 in)	4.1 mm (0.16 in)	88 years	20 of 100 (Routine)
29 June 1982	Mariposa, US	daily rain	13.5 mm (0.5 in)	11.5 mm (0.5 in)	41 years	20 of 100 (Routine)
11 April 1982	Mariposa, US	daily rain	61.7 mm (2.4 in)	27.2 mm (1.1 in)	16 years	34 of 100 (Routine)
1 April 1982	Mariposa, US	daily rain	50.5 mm (2.0 in)	10.9 mm (0.4 in)	24 years	24 of 100 (Routine)

Extremes by Year

1893 to 1984

Yearly extremes at Mariposa: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Hottest day (TXx)	40.0 C (104.0 F)	1893	32.2 C (90.0 F)	3
Coldest night (TNn)	-5.6 C (21.9 F)	1894	-3.9 C (25.0 F)	3
Wettest day (Rx1day)	185.4 mm (7.3 in)	1950	62.4 mm (2.5 in)	80
Wettest five days (Rx5day)	362.2 mm (14.3 in)	1955	136.5 mm (5.4 in)	80
Longest dry spell (CDD)	211 days	1928	100 days	80

Hottest day (TXx)

The hottest day of the year at Mariposa, 1893 to 1984. The record is 40.0 C (104.0 F) in 1893, marked on the chart; the median year is 32.2 C (90.0 F).

Hottest day (TXx) at Mariposa by year
Year	Hottest day (TXx)
1893	40.0 C (104.0 F)
1894	32.2 C (90.0 F)
1895	31.1 C (88.0 F)
1908	n/a
1909	n/a
1910	n/a
1911	n/a
1912	n/a
1913	n/a
1914	n/a
1915	n/a
1916	n/a
1917	n/a
1918	n/a
1919	n/a
1920	n/a
1921	n/a
1922	n/a
1923	n/a
1924	n/a
1925	n/a
1926	n/a
1927	n/a
1928	n/a
1929	n/a
1930	n/a
1931	n/a
1932	n/a
1933	n/a
1934	n/a
1935	n/a
1936	n/a
1937	n/a
1938	n/a
1939	n/a
1940	n/a
1941	n/a
1942	n/a
1943	n/a
1944	n/a
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

Coldest night (TNn)

The coldest night of the year at Mariposa, 1893 to 1984. The record is -5.6 C (21.9 F) in 1894, marked on the chart; the median year is -3.9 C (25.0 F).

Coldest night (TNn) at Mariposa by year
Year	Coldest night (TNn)
1893	-3.3 C (26.1 F)
1894	-5.6 C (21.9 F)
1895	-3.9 C (25.0 F)
1908	n/a
1909	n/a
1910	n/a
1911	n/a
1912	n/a
1913	n/a
1914	n/a
1915	n/a
1916	n/a
1917	n/a
1918	n/a
1919	n/a
1920	n/a
1921	n/a
1922	n/a
1923	n/a
1924	n/a
1925	n/a
1926	n/a
1927	n/a
1928	n/a
1929	n/a
1930	n/a
1931	n/a
1932	n/a
1933	n/a
1934	n/a
1935	n/a
1936	n/a
1937	n/a
1938	n/a
1939	n/a
1940	n/a
1941	n/a
1942	n/a
1943	n/a
1944	n/a
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

Wettest day (Rx1day)

The wettest day of the year at Mariposa, 1893 to 1984. The record is 185.4 mm (7.3 in) in 1950, marked on the chart; the median year is 62.4 mm (2.5 in).

Wettest day (Rx1day) at Mariposa by year
Year	Wettest day (Rx1day)
1893	61.5 mm (2.4 in)
1894	80.0 mm (3.1 in)
1895	94.7 mm (3.7 in)
1908	32.8 mm (1.3 in)
1909	101.6 mm (4.0 in)
1910	53.3 mm (2.1 in)
1911	81.0 mm (3.2 in)
1912	47.8 mm (1.9 in)
1913	54.6 mm (2.1 in)
1914	74.9 mm (2.9 in)
1915	66.8 mm (2.6 in)
1916	60.2 mm (2.4 in)
1917	78.2 mm (3.1 in)
1918	61.5 mm (2.4 in)
1919	54.6 mm (2.1 in)
1920	39.1 mm (1.5 in)
1921	79.8 mm (3.1 in)
1922	74.4 mm (2.9 in)
1923	67.3 mm (2.6 in)
1924	101.6 mm (4.0 in)
1925	50.8 mm (2.0 in)
1926	77.2 mm (3.0 in)
1927	52.3 mm (2.1 in)
1928	73.9 mm (2.9 in)
1929	50.8 mm (2.0 in)
1930	53.6 mm (2.1 in)
1931	93.0 mm (3.7 in)
1932	43.2 mm (1.7 in)
1933	51.8 mm (2.0 in)
1934	52.8 mm (2.1 in)
1935	50.8 mm (2.0 in)
1936	60.5 mm (2.4 in)
1937	119.9 mm (4.7 in)
1938	92.7 mm (3.6 in)
1939	41.9 mm (1.6 in)
1940	92.7 mm (3.6 in)
1941	81.5 mm (3.2 in)
1942	71.1 mm (2.8 in)
1943	78.7 mm (3.1 in)
1944	58.4 mm (2.3 in)
1945	87.6 mm (3.4 in)
1946	76.5 mm (3.0 in)
1947	28.2 mm (1.1 in)
1948	43.7 mm (1.7 in)
1949	57.7 mm (2.3 in)
1950	185.4 mm (7.3 in)
1951	55.4 mm (2.2 in)
1952	62.0 mm (2.4 in)
1953	60.7 mm (2.4 in)
1954	66.3 mm (2.6 in)
1955	165.1 mm (6.5 in)
1956	50.3 mm (2.0 in)
1957	57.7 mm (2.3 in)
1958	67.6 mm (2.7 in)
1959	133.1 mm (5.2 in)
1960	62.5 mm (2.5 in)
1961	46.7 mm (1.8 in)
1962	80.3 mm (3.2 in)
1963	117.3 mm (4.6 in)
1964	87.1 mm (3.4 in)
1965	64.8 mm (2.6 in)
1966	62.2 mm (2.4 in)
1967	64.0 mm (2.5 in)
1968	50.5 mm (2.0 in)
1969	122.7 mm (4.8 in)
1970	94.0 mm (3.7 in)
1971	34.5 mm (1.4 in)
1972	50.8 mm (2.0 in)
1973	51.6 mm (2.0 in)
1974	77.0 mm (3.0 in)
1975	61.0 mm (2.4 in)
1976	43.9 mm (1.7 in)
1977	60.7 mm (2.4 in)
1978	68.3 mm (2.7 in)
1979	50.0 mm (2.0 in)
1980	43.9 mm (1.7 in)
1981	63.8 mm (2.5 in)
1982	119.6 mm (4.7 in)
1983	66.0 mm (2.6 in)
1984	23.4 mm (0.9 in)

Wettest five days (Rx5day)

The wettest five days of the year at Mariposa, 1893 to 1984. The record is 362.2 mm (14.3 in) in 1955, marked on the chart; the median year is 136.5 mm (5.4 in).

Wettest five days (Rx5day) at Mariposa by year
Year	Wettest five days (Rx5day)
1893	146.4 mm (5.8 in)
1894	130.3 mm (5.1 in)
1895	143.7 mm (5.7 in)
1908	50.1 mm (2.0 in)
1909	204.9 mm (8.1 in)
1910	138.6 mm (5.5 in)
1911	178.3 mm (7.0 in)
1912	71.2 mm (2.8 in)
1913	126.5 mm (5.0 in)
1914	199.6 mm (7.9 in)
1915	97.4 mm (3.8 in)
1916	136.4 mm (5.4 in)
1917	233.4 mm (9.2 in)
1918	158.8 mm (6.3 in)
1919	107.8 mm (4.2 in)
1920	77.0 mm (3.0 in)
1921	192.3 mm (7.6 in)
1922	136.5 mm (5.4 in)
1923	98.4 mm (3.9 in)
1924	116.6 mm (4.6 in)
1925	92.9 mm (3.7 in)
1926	178.0 mm (7.0 in)
1927	114.3 mm (4.5 in)
1928	191.2 mm (7.5 in)
1929	77.8 mm (3.1 in)
1930	101.4 mm (4.0 in)
1931	201.2 mm (7.9 in)
1932	125.2 mm (4.9 in)
1933	124.5 mm (4.9 in)
1934	85.3 mm (3.4 in)
1935	104.9 mm (4.1 in)
1936	208.6 mm (8.2 in)
1937	209.8 mm (8.3 in)
1938	163.3 mm (6.4 in)
1939	81.9 mm (3.2 in)
1940	171.7 mm (6.8 in)
1941	162.3 mm (6.4 in)
1942	164.5 mm (6.5 in)
1943	175.7 mm (6.9 in)
1944	117.5 mm (4.6 in)
1945	246.9 mm (9.7 in)
1946	171.0 mm (6.7 in)
1947	54.1 mm (2.1 in)
1948	96.4 mm (3.8 in)
1949	87.3 mm (3.4 in)
1950	292.2 mm (11.5 in)
1951	131.1 mm (5.2 in)
1952	142.5 mm (5.6 in)
1953	74.2 mm (2.9 in)
1954	108.7 mm (4.3 in)
1955	362.2 mm (14.3 in)
1956	124.2 mm (4.9 in)
1957	104.1 mm (4.1 in)
1958	164.1 mm (6.5 in)
1959	139.0 mm (5.5 in)
1960	110.7 mm (4.4 in)
1961	84.2 mm (3.3 in)
1962	244.1 mm (9.6 in)
1963	308.1 mm (12.1 in)
1964	196.8 mm (7.7 in)
1965	186.3 mm (7.3 in)
1966	167.2 mm (6.6 in)
1967	138.6 mm (5.5 in)
1968	82.9 mm (3.3 in)
1969	219.5 mm (8.6 in)
1970	157.8 mm (6.2 in)
1971	86.1 mm (3.4 in)
1972	108.8 mm (4.3 in)
1973	129.8 mm (5.1 in)
1974	106.7 mm (4.2 in)
1975	161.2 mm (6.3 in)
1976	89.8 mm (3.5 in)
1977	107.9 mm (4.2 in)
1978	178.3 mm (7.0 in)
1979	134.1 mm (5.3 in)
1980	156.5 mm (6.2 in)
1981	140.2 mm (5.5 in)
1982	201.5 mm (7.9 in)
1983	133.9 mm (5.3 in)
1984	38.8 mm (1.5 in)

Longest dry spell (CDD)

The longest dry spell of the year at Mariposa, 1893 to 1984. The record is 211 days in 1928, marked on the chart; the median year is 100 days.

Longest dry spell (CDD) at Mariposa by year
Year	Longest dry spell (CDD)
1893	50 days
1894	45 days
1895	27 days
1908	20 days
1909	17 days
1910	68 days
1911	61 days
1912	81 days
1913	101 days
1914	101 days
1915	69 days
1916	95 days
1917	128 days
1918	42 days
1919	34 days
1920	58 days
1921	103 days
1922	109 days
1923	96 days
1924	165 days
1925	124 days
1926	149 days
1927	87 days
1928	211 days
1929	81 days
1930	98 days
1931	100 days
1932	180 days
1933	146 days
1934	109 days
1935	140 days
1936	92 days
1937	156 days
1938	147 days
1939	112 days
1940	56 days
1941	58 days
1942	106 days
1943	137 days
1944	97 days
1945	75 days
1946	65 days
1947	99 days
1948	133 days
1949	162 days
1950	135 days
1951	125 days
1952	47 days
1953	124 days
1954	148 days
1955	163 days
1956	113 days
1957	98 days
1958	106 days
1959	136 days
1960	121 days
1961	75 days
1962	75 days
1963	90 days
1964	82 days
1965	120 days
1966	131 days
1967	103 days
1968	151 days
1969	77 days
1970	129 days
1971	100 days
1972	100 days
1973	42 days
1974	83 days
1975	54 days
1976	90 days
1977	101 days
1978	69 days
1979	48 days
1980	48 days
1981	128 days
1982	57 days
1983	116 days
1984	56 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

65 years, 1910 to 1983

A day with at least 65.3 mm (2.6 in) of rain is expected about once in 2 years. A day with at least 184.5 mm (7.3 in) of rain is expected about once in 100 years.

Rainfall return levels at Mariposa: the daily rain expected about once in a given number of years
Expected about once in	A day with at least	Note
2 years	65.3 mm (2.6 in)
5 years	87.9 mm (3.5 in)
10 years	106.0 mm (4.2 in)
25 years	133.2 mm (5.2 in)
50 years	157.1 mm (6.2 in)
100 years	184.5 mm (7.3 in)	Longer than the 65 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, 65 years of values from 1910 to 1983.

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: 185.4 mm (7.3 in) in 1950; 165.1 mm (6.5 in) in 1955; 133.1 mm (5.2 in) in 1959.

Download the Data

Data for Mariposa standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Mariposa 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 2026-10-13 (13 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).