Juncal Dam Weather Records (USC00044422)

Record envelope, standing records and threshold days for Juncal Dam (USC00044422), California, United States, with 86 years of record.

Key Facts for Juncal Dam

Juncal Dam (USC00044422) is a weather station in California, United States at 34.49 latitude and -119.51 longitude, 689 m (2,260 ft) above sea level.
The station reports from 1941 to 2026, 86 years of record.
1,464 records set at Juncal Dam still stand.
Records are tracked for prcp, snow, snwd: an element needs 30 years of data to be eligible.
Juncal Dam set a daily record precipitation of 64.8 mm (2.6 in) on 4 January 2026.

About the Station

Location: California, United States, 34.49 latitude, -119.51 longitude.
Elevation: 689 m (2,260 ft).
Period of record: 1941 to 2026, 86 years.
Eligible elements: prcp, snow, snwd.

Daily Record Envelope and 2026

168 days at or beyond a record

The band shows the record high and record low for each calendar day at Juncal Dam. The lines show the 2026 daily maximum and minimum. 168 days in 2026 matched or passed a record. Temperatures are in degrees Celsius.

Daily record high and record low at Juncal Dam, with 2026 drawn through them
Month	Highest record high	Lowest record low	2026 highest maximum	2026 lowest minimum
Jan	27.2 C (81.0 F)	-1.1 C (30.0 F)	27.2 C (81.0 F)	0.6 C (33.1 F)
Feb	32.2 C (90.0 F)	-1.1 C (30.0 F)	32.2 C (90.0 F)	0.6 C (33.1 F)
Mar	35.6 C (96.1 F)	0.6 C (33.1 F)	35.6 C (96.1 F)	4.4 C (39.9 F)
Apr	32.2 C (90.0 F)	0.6 C (33.1 F)	29.4 C (84.9 F)	3.3 C (37.9 F)
May	35.6 C (96.1 F)	3.9 C (39.0 F)	33.3 C (91.9 F)	6.1 C (43.0 F)
Jun	37.8 C (100.0 F)	6.7 C (44.1 F)	35.6 C (96.1 F)	7.8 C (46.0 F)
Jul	45.0 C (113.0 F)	8.9 C (48.0 F)	40.0 C (104.0 F)	8.9 C (48.0 F)
Aug	41.7 C (107.1 F)	8.9 C (48.0 F)	41.7 C (107.1 F)	12.2 C (54.0 F)
Sep	43.3 C (109.9 F)	7.8 C (46.0 F)	32.2 C (90.0 F)	7.2 C (45.0 F)
Oct	42.2 C (108.0 F)	3.9 C (39.0 F)	n/a	n/a
Nov	32.8 C (91.0 F)	1.1 C (34.0 F)	n/a	n/a
Dec	30.0 C (86.0 F)	1.1 C (34.0 F)	n/a	n/a

Which Years Hold Standing Records

1,464 standing records

1,464 records at Juncal Dam still stand. 2024 holds the most, with 550.

Wettest Day of Each Month

Jan: 406.4 mm (16.0 in)

The wettest day on record for each calendar month at Juncal Dam. The most was 406.4 mm (16.0 in) on 25 January 1969.

Record daily precipitation for each month at Juncal Dam
Month	Record daily precipitation (mm)	Date
Jan	406.4 mm (16.0 in)	25 January 1969
Feb	255.5 mm (10.1 in)	10 February 1978
Mar	213.9 mm (8.4 in)	11 March 1995
Apr	128.0 mm (5.0 in)	4 April 2006
May	108.0 mm (4.3 in)	6 May 1998
Jun	16.5 mm (0.6 in)	5 June 1993
Jul	35.3 mm (1.4 in)	20 July 2015
Aug	10.7 mm (0.4 in)	21 August 2023
Sep	90.2 mm (3.6 in)	29 September 1976
Oct	166.1 mm (6.5 in)	14 October 2009
Nov	165.1 mm (6.5 in)	29 November 1970
Dec	206.8 mm (8.1 in)	29 December 1965

Period of Record Coverage

2023 to 2026

4 years of record at Juncal Dam, 2023 to 2026. 2 years have data for under 90 percent of days and are left out of rankings: 2023, 2026.

Latest Records

Latest records at Juncal Dam
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
4 January 2026	Juncal Dam, US	daily rain	64.8 mm (2.6 in)	7.6 mm (0.30 in)	52 years	24 of 100 (Routine)
26 December 2025	Juncal Dam, US	daily rain	175.8 mm (6.9 in)	106.2 mm (4.2 in)	54 years	56 of 100 (Notable)
24 December 2025	Juncal Dam, US	daily rain	121.7 mm (4.8 in)	17.8 mm (0.7 in)	42 years	25 of 100 (Routine)
28 September 2025	Juncal Dam, US	daily rain (Tie)	4.1 mm (0.16 in)	tie	58 years	6 of 100 (Routine)
24 September 2025	Juncal Dam, US	daily rain	5.1 mm (0.20 in)	3.3 mm (0.13 in)	31 years	19 of 100 (Routine)
3 September 2025	Juncal Dam, US	daily rain	0.3 mm (0.01 in)	0.3 mm (0.01 in)	83 years	20 of 100 (Routine)
13 March 2025	Juncal Dam, US	daily rain	71.1 mm (2.8 in)	19.3 mm (0.8 in)	19 years	19 of 100 (Routine)
14 February 2025	Juncal Dam, US	daily rain	94.0 mm (3.7 in)	14.5 mm (0.6 in)	30 years	20 of 100 (Routine)
13 July 2024	Juncal Dam, US	daily rain (Tie)	0.5 mm (0.02 in)	tie	32 years	4 of 100 (Routine)
5 May 2024	Juncal Dam, US	daily rain	3.0 mm (0.12 in)	3.0 mm (0.12 in)	82 years	20 of 100 (Routine)
5 February 2024	Juncal Dam, US	daily rain	157.7 mm (6.2 in)	106.6 mm (4.2 in)	76 years	57 of 100 (Notable)
1 February 2024	Juncal Dam, US	daily rain	74.7 mm (2.9 in)	22.1 mm (0.9 in)	44 years	26 of 100 (Routine)
21 August 2023	Juncal Dam, US	monthly rain	10.7 mm (0.4 in)	0.5 mm (0.02 in)	46 years	20 of 100 (Routine)
11 August 2023	Juncal Dam, US	daily rain	4.3 mm (0.17 in)	4.3 mm (0.17 in)	80 years	20 of 100 (Routine)
10 August 2023	Juncal Dam, US	daily rain	8.1 mm (0.32 in)	7.6 mm (0.30 in)	80 years	20 of 100 (Routine)
7 June 2023	Juncal Dam, US	daily rain	3.8 mm (0.15 in)	3.0 mm (0.12 in)	24 years	20 of 100 (Routine)
4 May 2023	Juncal Dam, US	daily rain	16.8 mm (0.7 in)	6.1 mm (0.24 in)	20 years	17 of 100 (Routine)
10 January 2023	Juncal Dam, US	daily rain	307.3 mm (12.1 in)	18.8 mm (0.7 in)	28 years	19 of 100 (Routine)
1 January 2023	Juncal Dam, US	daily rain	92.7 mm (3.6 in)	45.2 mm (1.8 in)	16 years	22 of 100 (Routine)
11 December 2022	Juncal Dam, US	daily rain	165.4 mm (6.5 in)	96.6 mm (3.8 in)	25 years	44 of 100 (Notable)

Extremes by Year

1941 to 2026

Yearly extremes at Juncal Dam: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Hottest day (TXx)	45.0 C (113.0 F)	2024	40.9 C (105.5 F)	4
Coldest night (TNn)	-1.1 C (30.0 F)	2025	0.6 C (33.1 F)	4
Wettest day (Rx1day)	406.4 mm (16.0 in)	1969	113.4 mm (4.5 in)	86
Wettest five days (Rx5day)	727.3 mm (28.6 in)	1969	180.1 mm (7.1 in)	86
Longest dry spell (CDD)	244 days	1970	139 days	86

Hottest day (TXx)

The hottest day of the year at Juncal Dam, 1941 to 2026. The record is 45.0 C (113.0 F) in 2024, marked on the chart; the median year is 40.9 C (105.5 F).

Hottest day (TXx) at Juncal Dam by year
Year	Hottest day (TXx)
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
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
2009	n/a
2010	n/a
2011	n/a
2012	n/a
2013	n/a
2014	n/a
2015	n/a
2016	n/a
2017	n/a
2018	n/a
2019	n/a
2020	n/a
2021	n/a
2022	n/a
2023	36.7 C (98.1 F)
2024	45.0 C (113.0 F)
2025	40.0 C (104.0 F)
2026	41.7 C (107.1 F)

Coldest night (TNn)

The coldest night of the year at Juncal Dam, 1941 to 2026. The record is -1.1 C (30.0 F) in 2025, marked on the chart; the median year is 0.6 C (33.1 F).

Coldest night (TNn) at Juncal Dam by year
Year	Coldest night (TNn)
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
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
2009	n/a
2010	n/a
2011	n/a
2012	n/a
2013	n/a
2014	n/a
2015	n/a
2016	n/a
2017	n/a
2018	n/a
2019	n/a
2020	n/a
2021	n/a
2022	n/a
2023	2.8 C (37.0 F)
2024	0.6 C (33.1 F)
2025	-1.1 C (30.0 F)
2026	0.6 C (33.1 F)

Wettest day (Rx1day)

The wettest day of the year at Juncal Dam, 1941 to 2026. The record is 406.4 mm (16.0 in) in 1969, marked on the chart; the median year is 113.4 mm (4.5 in).

Wettest day (Rx1day) at Juncal Dam by year
Year	Wettest day (Rx1day)
1941	81.0 mm (3.2 in)
1942	47.5 mm (1.9 in)
1943	290.6 mm (11.4 in)
1944	128.3 mm (5.1 in)
1945	155.4 mm (6.1 in)
1946	136.7 mm (5.4 in)
1947	40.4 mm (1.6 in)
1948	68.6 mm (2.7 in)
1949	70.6 mm (2.8 in)
1950	55.6 mm (2.2 in)
1951	54.1 mm (2.1 in)
1952	335.5 mm (13.2 in)
1953	100.3 mm (3.9 in)
1954	103.1 mm (4.1 in)
1955	85.1 mm (3.4 in)
1956	92.7 mm (3.6 in)
1957	99.8 mm (3.9 in)
1958	124.0 mm (4.9 in)
1959	149.4 mm (5.9 in)
1960	80.0 mm (3.1 in)
1961	96.0 mm (3.8 in)
1962	160.0 mm (6.3 in)
1963	101.3 mm (4.0 in)
1964	86.9 mm (3.4 in)
1965	206.8 mm (8.1 in)
1966	158.5 mm (6.2 in)
1967	121.7 mm (4.8 in)
1968	45.0 mm (1.8 in)
1969	406.4 mm (16.0 in)
1970	165.1 mm (6.5 in)
1971	89.9 mm (3.5 in)
1972	71.6 mm (2.8 in)
1973	196.3 mm (7.7 in)
1974	206.5 mm (8.1 in)
1975	111.3 mm (4.4 in)
1976	90.2 mm (3.6 in)
1977	158.5 mm (6.2 in)
1978	255.5 mm (10.1 in)
1979	87.9 mm (3.5 in)
1980	177.8 mm (7.0 in)
1981	83.8 mm (3.3 in)
1982	62.7 mm (2.5 in)
1983	133.4 mm (5.3 in)
1984	64.5 mm (2.5 in)
1985	56.4 mm (2.2 in)
1986	89.9 mm (3.5 in)
1987	53.3 mm (2.1 in)
1988	80.0 mm (3.1 in)
1989	61.0 mm (2.4 in)
1990	86.9 mm (3.4 in)
1991	137.2 mm (5.4 in)
1992	128.5 mm (5.1 in)
1993	157.5 mm (6.2 in)
1994	84.6 mm (3.3 in)
1995	288.5 mm (11.4 in)
1996	117.6 mm (4.6 in)
1997	160.0 mm (6.3 in)
1998	184.2 mm (7.3 in)
1999	49.8 mm (2.0 in)
2000	96.5 mm (3.8 in)
2001	128.3 mm (5.1 in)
2002	113.0 mm (4.4 in)
2003	120.7 mm (4.8 in)
2004	177.8 mm (7.0 in)
2005	279.4 mm (11.0 in)
2006	183.4 mm (7.2 in)
2007	116.8 mm (4.6 in)
2008	204.5 mm (8.1 in)
2009	166.1 mm (6.5 in)
2010	109.7 mm (4.3 in)
2011	119.4 mm (4.7 in)
2012	52.3 mm (2.1 in)
2013	33.8 mm (1.3 in)
2014	80.0 mm (3.1 in)
2015	35.3 mm (1.4 in)
2016	79.2 mm (3.1 in)
2017	184.9 mm (7.3 in)
2018	68.6 mm (2.7 in)
2019	154.4 mm (6.1 in)
2020	113.8 mm (4.5 in)
2021	141.2 mm (5.6 in)
2022	165.4 mm (6.5 in)
2023	307.3 mm (12.1 in)
2024	157.7 mm (6.2 in)
2025	175.8 mm (6.9 in)
2026	64.8 mm (2.6 in)

Wettest five days (Rx5day)

The wettest five days of the year at Juncal Dam, 1941 to 2026. The record is 727.3 mm (28.6 in) in 1969, marked on the chart; the median year is 180.1 mm (7.1 in).

Wettest five days (Rx5day) at Juncal Dam by year
Year	Wettest five days (Rx5day)
1941	126.8 mm (5.0 in)
1942	118.8 mm (4.7 in)
1943	588.0 mm (23.1 in)
1944	309.1 mm (12.2 in)
1945	268.3 mm (10.6 in)
1946	207.6 mm (8.2 in)
1947	45.7 mm (1.8 in)
1948	84.9 mm (3.3 in)
1949	89.4 mm (3.5 in)
1950	101.6 mm (4.0 in)
1951	95.0 mm (3.7 in)
1952	598.9 mm (23.6 in)
1953	100.3 mm (3.9 in)
1954	123.7 mm (4.9 in)
1955	130.1 mm (5.1 in)
1956	158.8 mm (6.3 in)
1957	250.9 mm (9.9 in)
1958	253.8 mm (10.0 in)
1959	198.5 mm (7.8 in)
1960	131.8 mm (5.2 in)
1961	96.0 mm (3.8 in)
1962	531.2 mm (20.9 in)
1963	166.8 mm (6.6 in)
1964	154.5 mm (6.1 in)
1965	269.3 mm (10.6 in)
1966	315.2 mm (12.4 in)
1967	233.0 mm (9.2 in)
1968	86.9 mm (3.4 in)
1969	727.3 mm (28.6 in)
1970	244.1 mm (9.6 in)
1971	276.1 mm (10.9 in)
1972	169.1 mm (6.7 in)
1973	317.7 mm (12.5 in)
1974	316.8 mm (12.5 in)
1975	237.0 mm (9.3 in)
1976	309.0 mm (12.2 in)
1977	210.6 mm (8.3 in)
1978	387.8 mm (15.3 in)
1979	163.9 mm (6.5 in)
1980	387.4 mm (15.3 in)
1981	148.3 mm (5.8 in)
1982	88.1 mm (3.5 in)
1983	357.5 mm (14.1 in)
1984	131.5 mm (5.2 in)
1985	95.7 mm (3.8 in)
1986	217.2 mm (8.6 in)
1987	73.6 mm (2.9 in)
1988	146.2 mm (5.8 in)
1989	104.7 mm (4.1 in)
1990	155.5 mm (6.1 in)
1991	342.9 mm (13.5 in)
1992	383.0 mm (15.1 in)
1993	300.8 mm (11.8 in)
1994	143.1 mm (5.6 in)
1995	598.6 mm (23.6 in)
1996	183.6 mm (7.2 in)
1997	238.8 mm (9.4 in)
1998	356.7 mm (14.0 in)
1999	68.9 mm (2.7 in)
2000	126.7 mm (5.0 in)
2001	261.1 mm (10.3 in)
2002	123.7 mm (4.9 in)
2003	120.7 mm (4.8 in)
2004	406.5 mm (16.0 in)
2005	549.4 mm (21.6 in)
2006	251.7 mm (9.9 in)
2007	116.8 mm (4.6 in)
2008	244.1 mm (9.6 in)
2009	176.7 mm (7.0 in)
2010	304.4 mm (12.0 in)
2011	210.3 mm (8.3 in)
2012	88.4 mm (3.5 in)
2013	37.8 mm (1.5 in)
2014	128.6 mm (5.1 in)
2015	35.3 mm (1.4 in)
2016	100.4 mm (4.0 in)
2017	200.8 mm (7.9 in)
2018	18.3 mm (0.7 in)
2019	209.6 mm (8.3 in)
2020	139.9 mm (5.5 in)
2021	158.2 mm (6.2 in)
2022	176.4 mm (6.9 in)
2023	446.4 mm (17.6 in)
2024	242.6 mm (9.6 in)
2025	365.3 mm (14.4 in)
2026	141.8 mm (5.6 in)

Longest dry spell (CDD)

The longest dry spell of the year at Juncal Dam, 1941 to 2026. The record is 244 days in 1970, marked on the chart; the median year is 139 days.

Longest dry spell (CDD) at Juncal Dam by year
Year	Longest dry spell (CDD)
1941	61 days
1942	171 days
1943	192 days
1944	190 days
1945	187 days
1946	181 days
1947	154 days
1948	130 days
1949	139 days
1950	90 days
1951	178 days
1952	107 days
1953	139 days
1954	196 days
1955	100 days
1956	139 days
1957	142 days
1958	107 days
1959	138 days
1960	96 days
1961	147 days
1962	152 days
1963	83 days
1964	139 days
1965	116 days
1966	148 days
1967	114 days
1968	94 days
1969	97 days
1970	244 days
1971	140 days
1972	147 days
1973	199 days
1974	186 days
1975	168 days
1976	87 days
1977	84 days
1978	132 days
1979	183 days
1980	143 days
1981	142 days
1982	82 days
1983	109 days
1984	119 days
1985	170 days
1986	184 days
1987	214 days
1988	189 days
1989	129 days
1990	115 days
1991	119 days
1992	109 days
1993	127 days
1994	126 days
1995	136 days
1996	107 days
1997	161 days
1998	83 days
1999	154 days
2000	171 days
2001	191 days
2002	110 days
2003	180 days
2004	228 days
2005	141 days
2006	132 days
2007	151 days
2008	82 days
2009	128 days
2010	31 days
2011	119 days
2012	169 days
2013	157 days
2014	88 days
2015	57 days
2016	174 days
2017	116 days
2018	5 days
2019	33 days
2020	164 days
2021	203 days
2022	140 days
2023	86 days
2024	181 days
2025	143 days
2026	98 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

78 years, 1942 to 2025

A day with at least 111.2 mm (4.4 in) of rain is expected about once in 2 years. A day with at least 342.1 mm (13.5 in) of rain is expected about once in 100 years.

Rainfall return levels at Juncal Dam: the daily rain expected about once in a given number of years
Expected about once in	A day with at least	Note
2 years	111.2 mm (4.4 in)
5 years	167.7 mm (6.6 in)
10 years	207.1 mm (8.2 in)
25 years	259.4 mm (10.2 in)
50 years	300.1 mm (11.8 in)
100 years	342.1 mm (13.5 in)	Longer than the 78 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, 78 years of values from 1942 to 2025.

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: 335.5 mm (13.2 in) in 1952; 307.3 mm (12.1 in) in 2023; 290.6 mm (11.4 in) in 1943.

Download the Data

Data for Juncal Dam standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Juncal Dam 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 2026-10-12. Last revised 12 October 2026 (2026-10-12).

Year	Days with data	Share of year	Complete
2023	122	33%	No
2024	366	100%	Yes
2025	363	99%	Yes
2026	248	68%	No