Groveland Rs Weather Records (USC00043672)

Record envelope, standing records and threshold days for Groveland Rs (USC00043672), California, United States, with 54 years of record.

Key Facts for Groveland Rs

Groveland Rs (USC00043672) is a weather station in California, United States at 37.82 latitude and -120.10 longitude, 959 m (3,145 ft) above sea level.
The station reports from 1955 to 2008, 54 years of record.
932 records set at Groveland Rs still stand.
Records are tracked for prcp, snow, snwd: an element needs 30 years of data to be eligible.
Groveland Rs set a daily record precipitation of 104.6 mm (4.1 in) on 29 January 2008.

About the Station

Location: California, United States, 37.82 latitude, -120.10 longitude.
Elevation: 959 m (3,145 ft).
Period of record: 1955 to 2008, 54 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 Groveland Rs. 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 Groveland Rs, with 2026 drawn through them
Month	Highest record high	Lowest record low	2026 highest maximum	2026 lowest minimum
Jan	21.1 C (70.0 F)	-3.9 C (25.0 F)	n/a	n/a
Feb	n/a	n/a	n/a	n/a
Mar	n/a	n/a	n/a	n/a
Apr	n/a	n/a	n/a	n/a
May	n/a	n/a	n/a	n/a
Jun	35.6 C (96.1 F)	7.8 C (46.0 F)	n/a	n/a
Jul	39.4 C (102.9 F)	5.6 C (42.1 F)	n/a	n/a
Aug	37.8 C (100.0 F)	5.6 C (42.1 F)	n/a	n/a
Sep	36.1 C (97.0 F)	4.4 C (39.9 F)	n/a	n/a
Oct	28.9 C (84.0 F)	-3.3 C (26.1 F)	n/a	n/a
Nov	26.1 C (79.0 F)	-6.7 C (19.9 F)	n/a	n/a
Dec	25.6 C (78.1 F)	-8.3 C (17.1 F)	n/a	n/a

Which Years Hold Standing Records

932 standing records

932 records at Groveland Rs still stand. 1981 holds the most, with 393.

All-Time Record Progression

1 new records

1 all-time records were set at Groveland Rs between 4 February 1989 and 4 February 1989. Each dot is a new record.

Wettest Day of Each Month

Dec: 160.0 mm (6.3 in)

The wettest day on record for each calendar month at Groveland Rs. The most was 160.0 mm (6.3 in) on 23 December 1955.

Record daily precipitation for each month at Groveland Rs
Month	Record daily precipitation (mm)	Date
Jan	140.5 mm (5.5 in)	19 January 1969
Feb	152.4 mm (6.0 in)	1 February 1963
Mar	119.4 mm (4.7 in)	12 March 1995
Apr	89.7 mm (3.5 in)	3 April 1958
May	74.2 mm (2.9 in)	19 May 1957
Jun	37.1 mm (1.5 in)	9 June 1970
Jul	37.1 mm (1.5 in)	12 July 1992
Aug	46.7 mm (1.8 in)	2 August 2003
Sep	126.7 mm (5.0 in)	19 September 1959
Oct	85.1 mm (3.4 in)	18 October 2004
Nov	112.3 mm (4.4 in)	19 November 1982
Dec	160.0 mm (6.3 in)	23 December 1955

Period of Record Coverage

1977 to 1981

4 years of record at Groveland Rs, 1977 to 1981. 4 years have data for under 90 percent of days and are left out of rankings: 1977, 1979, 1980, 1981.

Latest Records

Latest records at Groveland Rs
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
29 January 2008	Groveland Rs, US	daily rain	104.6 mm (4.1 in)	45.7 mm (1.8 in)	26 years	32 of 100 (Routine)
13 October 2007	Groveland Rs, US	daily rain	14.5 mm (0.6 in)	4.3 mm (0.17 in)	38 years	18 of 100 (Routine)
23 April 2007	Groveland Rs, US	daily rain	38.1 mm (1.5 in)	9.1 mm (0.36 in)	16 years	16 of 100 (Routine)
11 February 2007	Groveland Rs, US	daily rain	51.3 mm (2.0 in)	2.0 mm (0.08 in)	44 years	18 of 100 (Routine)
5 October 2006	Groveland Rs, US	daily rain	34.8 mm (1.4 in)	6.6 mm (0.26 in)	12 years	11 of 100 (Routine)
15 September 2006	Groveland Rs, US	daily rain	3.8 mm (0.15 in)	3.8 mm (0.15 in)	51 years	20 of 100 (Routine)
22 May 2006	Groveland Rs, US	daily rain	46.0 mm (1.8 in)	44.0 mm (1.7 in)	19 years	50 of 100 (Notable)
17 April 2006	Groveland Rs, US	daily rain	43.9 mm (1.7 in)	15.2 mm (0.6 in)	5 years	17 of 100 (Routine)
5 April 2006	Groveland Rs, US	daily rain	37.1 mm (1.5 in)	7.4 mm (0.29 in)	31 years	19 of 100 (Routine)
4 April 2006	Groveland Rs, US	daily rain (Tie)	49.3 mm (1.9 in)	tie	48 years	4 of 100 (Routine)
18 March 2006	Groveland Rs, US	daily snowfall (Tie)	7.6 cm (3.0 in)	tie	43 years	4 of 100 (Routine)
15 March 2006	Groveland Rs, US	daily snowfall (Tie)	10.2 cm (4.0 in)	tie	43 years	4 of 100 (Routine)
14 March 2006	Groveland Rs, US	daily snowfall	5.1 cm (2.0 in)	4.3 cm (1.7 in)	4 years	11 of 100 (Routine)
13 March 2006	Groveland Rs, US	daily snowfall	10.2 cm (4.0 in)	3.8 cm (1.5 in)	48 years	23 of 100 (Routine)
9 March 2006	Groveland Rs, US	daily snowfall	5.1 cm (2.0 in)	5.1 cm (2.0 in)	49 years	25 of 100 (Routine)
21 December 2005	Groveland Rs, US	daily rain	38.9 mm (1.5 in)	0.5 mm (0.02 in)	16 years	10 of 100 (Routine)
19 December 2005	Groveland Rs, US	daily rain	74.2 mm (2.9 in)	17.6 mm (0.7 in)	50 years	28 of 100 (Routine)
2 December 2005	Groveland Rs, US	daily rain	79.8 mm (3.1 in)	12.5 mm (0.5 in)	20 years	16 of 100 (Routine)
21 September 2005	Groveland Rs, US	daily rain	16.3 mm (0.6 in)	13.3 mm (0.5 in)	44 years	20 of 100 (Routine)
16 August 2005	Groveland Rs, US	daily rain	2.0 mm (0.08 in)	2.0 mm (0.08 in)	50 years	20 of 100 (Routine)

Extremes by Year

1955 to 2008

Yearly extremes at Groveland Rs: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Hottest day (TXx)	39.4 C (102.9 F)	1980	37.0 C (98.5 F)	4
Coldest night (TNn)	-8.3 C (17.1 F)	1980	-0.6 C (31.0 F)	4
Wettest day (Rx1day)	160.0 mm (6.3 in)	1955	75.8 mm (3.0 in)	54
Wettest five days (Rx5day)	405.2 mm (16.0 in)	1963	150.5 mm (5.9 in)	54
Longest dry spell (CDD)	162 days	1979	82 days	54

Hottest day (TXx)

The hottest day of the year at Groveland Rs, 1955 to 2008. The record is 39.4 C (102.9 F) in 1980, marked on the chart; the median year is 37.0 C (98.5 F).

Hottest day (TXx) at Groveland Rs by year
Year	Hottest day (TXx)
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	36.1 C (97.0 F)
1978	n/a
1979	37.8 C (100.0 F)
1980	39.4 C (102.9 F)
1981	34.4 C (93.9 F)
1982	n/a
1983	n/a
1984	n/a
1985	n/a
1986	n/a
1987	n/a
1988	n/a
1989	n/a
1990	n/a
1991	n/a
1992	n/a
1993	n/a
1994	n/a
1995	n/a
1996	n/a
1997	n/a
1998	n/a
1999	n/a
2000	n/a
2001	n/a
2002	n/a
2003	n/a
2004	n/a
2005	n/a
2006	n/a
2007	n/a
2008	n/a

Coldest night (TNn)

The coldest night of the year at Groveland Rs, 1955 to 2008. The record is -8.3 C (17.1 F) in 1980, marked on the chart; the median year is -0.6 C (31.0 F).

Coldest night (TNn) at Groveland Rs by year
Year	Coldest night (TNn)
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	5.6 C (42.1 F)
1978	n/a
1979	5.6 C (42.1 F)
1980	-8.3 C (17.1 F)
1981	-6.7 C (19.9 F)
1982	n/a
1983	n/a
1984	n/a
1985	n/a
1986	n/a
1987	n/a
1988	n/a
1989	n/a
1990	n/a
1991	n/a
1992	n/a
1993	n/a
1994	n/a
1995	n/a
1996	n/a
1997	n/a
1998	n/a
1999	n/a
2000	n/a
2001	n/a
2002	n/a
2003	n/a
2004	n/a
2005	n/a
2006	n/a
2007	n/a
2008	n/a

Wettest day (Rx1day)

The wettest day of the year at Groveland Rs, 1955 to 2008. The record is 160.0 mm (6.3 in) in 1955, marked on the chart; the median year is 75.8 mm (3.0 in).

Wettest day (Rx1day) at Groveland Rs by year
Year	Wettest day (Rx1day)
1955	160.0 mm (6.3 in)
1956	49.3 mm (1.9 in)
1957	74.2 mm (2.9 in)
1958	89.7 mm (3.5 in)
1959	126.7 mm (5.0 in)
1960	86.6 mm (3.4 in)
1961	50.8 mm (2.0 in)
1962	98.8 mm (3.9 in)
1963	152.4 mm (6.0 in)
1964	63.8 mm (2.5 in)
1965	66.0 mm (2.6 in)
1966	63.2 mm (2.5 in)
1967	50.0 mm (2.0 in)
1968	50.8 mm (2.0 in)
1969	140.5 mm (5.5 in)
1970	72.4 mm (2.9 in)
1971	62.7 mm (2.5 in)
1972	57.7 mm (2.3 in)
1973	67.1 mm (2.6 in)
1974	50.8 mm (2.0 in)
1975	94.5 mm (3.7 in)
1976	43.2 mm (1.7 in)
1977	69.1 mm (2.7 in)
1978	77.0 mm (3.0 in)
1979	79.8 mm (3.1 in)
1980	80.0 mm (3.1 in)
1981	61.0 mm (2.4 in)
1982	112.3 mm (4.4 in)
1983	103.9 mm (4.1 in)
1984	44.5 mm (1.8 in)
1985	67.3 mm (2.6 in)
1986	107.4 mm (4.2 in)
1987	102.9 mm (4.1 in)
1988	89.4 mm (3.5 in)
1989	83.6 mm (3.3 in)
1990	42.2 mm (1.7 in)
1991	71.6 mm (2.8 in)
1992	74.2 mm (2.9 in)
1993	56.9 mm (2.2 in)
1994	73.7 mm (2.9 in)
1995	119.4 mm (4.7 in)
1996	107.7 mm (4.2 in)
1997	71.1 mm (2.8 in)
1998	90.7 mm (3.6 in)
1999	76.7 mm (3.0 in)
2000	110.2 mm (4.3 in)
2001	82.8 mm (3.3 in)
2002	74.9 mm (2.9 in)
2003	94.0 mm (3.7 in)
2004	85.1 mm (3.4 in)
2005	79.8 mm (3.1 in)
2006	64.0 mm (2.5 in)
2007	51.3 mm (2.0 in)
2008	104.6 mm (4.1 in)

Wettest five days (Rx5day)

The wettest five days of the year at Groveland Rs, 1955 to 2008. The record is 405.2 mm (16.0 in) in 1963, marked on the chart; the median year is 150.5 mm (5.9 in).

Wettest five days (Rx5day) at Groveland Rs by year
Year	Wettest five days (Rx5day)
1955	373.7 mm (14.7 in)
1956	103.7 mm (4.1 in)
1957	134.6 mm (5.3 in)
1958	225.6 mm (8.9 in)
1959	175.5 mm (6.9 in)
1960	152.6 mm (6.0 in)
1961	110.9 mm (4.4 in)
1962	257.6 mm (10.1 in)
1963	405.2 mm (16.0 in)
1964	167.5 mm (6.6 in)
1965	191.0 mm (7.5 in)
1966	183.6 mm (7.2 in)
1967	83.8 mm (3.3 in)
1968	93.9 mm (3.7 in)
1969	322.4 mm (12.7 in)
1970	154.2 mm (6.1 in)
1971	117.5 mm (4.6 in)
1972	103.5 mm (4.1 in)
1973	106.5 mm (4.2 in)
1974	76.8 mm (3.0 in)
1975	198.4 mm (7.8 in)
1976	66.8 mm (2.6 in)
1977	125.9 mm (5.0 in)
1978	194.1 mm (7.6 in)
1979	168.9 mm (6.6 in)
1980	284.5 mm (11.2 in)
1981	179.0 mm (7.0 in)
1982	176.6 mm (7.0 in)
1983	212.9 mm (8.4 in)
1984	62.6 mm (2.5 in)
1985	95.3 mm (3.8 in)
1986	358.7 mm (14.1 in)
1987	72.9 mm (2.9 in)
1988	110.1 mm (4.3 in)
1989	123.3 mm (4.9 in)
1990	76.5 mm (3.0 in)
1991	140.7 mm (5.5 in)
1992	136.7 mm (5.4 in)
1993	145.3 mm (5.7 in)
1994	120.4 mm (4.7 in)
1995	273.1 mm (10.8 in)
1996	177.1 mm (7.0 in)
1997	260.0 mm (10.2 in)
1998	172.6 mm (6.8 in)
1999	139.2 mm (5.5 in)
2000	191.5 mm (7.5 in)
2001	113.6 mm (4.5 in)
2002	148.4 mm (5.8 in)
2003	108.2 mm (4.3 in)
2004	195.5 mm (7.7 in)
2005	181.6 mm (7.1 in)
2006	190.0 mm (7.5 in)
2007	85.9 mm (3.4 in)
2008	140.5 mm (5.5 in)

Longest dry spell (CDD)

The longest dry spell of the year at Groveland Rs, 1955 to 2008. The record is 162 days in 1979, marked on the chart; the median year is 82 days.

Longest dry spell (CDD) at Groveland Rs by year
Year	Longest dry spell (CDD)
1955	109 days
1956	68 days
1957	71 days
1958	87 days
1959	136 days
1960	121 days
1961	106 days
1962	75 days
1963	82 days
1964	82 days
1965	81 days
1966	53 days
1967	81 days
1968	66 days
1969	88 days
1970	115 days
1971	70 days
1972	86 days
1973	113 days
1974	66 days
1975	41 days
1976	119 days
1977	100 days
1978	62 days
1979	162 days
1980	106 days
1981	120 days
1982	47 days
1983	80 days
1984	46 days
1985	74 days
1986	76 days
1987	125 days
1988	104 days
1989	60 days
1990	111 days
1991	48 days
1992	97 days
1993	111 days
1994	115 days
1995	162 days
1996	77 days
1997	49 days
1998	31 days
1999	146 days
2000	52 days
2001	79 days
2002	106 days
2003	82 days
2004	114 days
2005	46 days
2006	114 days
2007	137 days
2008	38 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

46 years, 1956 to 2006

A day with at least 76.4 mm (3.0 in) of rain is expected about once in 2 years. A day with at least 160.7 mm (6.3 in) of rain is expected about once in 100 years.

Rainfall return levels at Groveland Rs: the daily rain expected about once in a given number of years
Expected about once in	A day with at least	Note
2 years	76.4 mm (3.0 in)
5 years	99.7 mm (3.9 in)
10 years	114.8 mm (4.5 in)
25 years	133.6 mm (5.3 in)
50 years	147.3 mm (5.8 in)	Longer than the 46 years of record
100 years	160.7 mm (6.3 in)	Longer than the 46 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, 46 years of values from 1956 to 2006.

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: 152.4 mm (6.0 in) in 1963; 140.5 mm (5.5 in) in 1969; 126.7 mm (5.0 in) in 1959.

Download the Data

Data for Groveland Rs standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Groveland Rs 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).