Muir Woods Weather Records (USC00046027)

Record envelope, standing records and threshold days for Muir Woods (USC00046027), California, United States, with 87 years of record.

Key Facts for Muir Woods

Muir Woods (USC00046027) is a weather station in California, United States at 37.90 latitude and -122.57 longitude, 67 m (220 ft) above sea level.
The station reports from 1940 to 2026, 87 years of record.
1,460 records set at Muir Woods still stand.
Records are tracked for prcp, snow, snwd: an element needs 30 years of data to be eligible.
Muir Woods set a daily record precipitation of 3.6 mm (0.14 in) on 13 August 2026.

About the Station

Location: California, United States, 37.90 latitude, -122.57 longitude.
Elevation: 67 m (220 ft).
Period of record: 1940 to 2026, 87 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 Muir Woods. 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 Muir Woods, 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)	-2.8 C (27.0 F)	n/a	n/a
Feb	26.1 C (79.0 F)	-0.6 C (30.9 F)	n/a	n/a
Mar	28.3 C (82.9 F)	1.7 C (35.1 F)	n/a	n/a
Apr	32.8 C (91.0 F)	-1.7 C (28.9 F)	n/a	n/a
May	32.8 C (91.0 F)	4.4 C (39.9 F)	n/a	n/a
Jun	38.9 C (102.0 F)	5.0 C (41.0 F)	n/a	n/a
Jul	32.2 C (90.0 F)	4.4 C (39.9 F)	n/a	n/a
Aug	36.1 C (97.0 F)	5.6 C (42.1 F)	n/a	n/a
Sep	39.4 C (102.9 F)	2.8 C (37.0 F)	n/a	n/a
Oct	38.3 C (100.9 F)	4.4 C (39.9 F)	n/a	n/a
Nov	27.2 C (81.0 F)	-1.1 C (30.0 F)	n/a	n/a
Dec	21.7 C (71.1 F)	-3.9 C (25.0 F)	n/a	n/a

Which Years Hold Standing Records

1,460 standing records

1,460 records at Muir Woods still stand. 2013 holds the most, with 360.

All-Time Record Progression

2 new records

2 all-time records were set at Muir Woods between 5 February 1976 and 24 October 2021. Each dot is a new record.

When Muir Woods set new all-time records
Date	Kind	Detail
1976-02-05	Record daily snowfall	Record daily snowfall 0.8 cm (0.3 in)
2021-10-24	Record daily precipitation	Record daily precipitation 180.3 mm (7.1 in)

Wettest Day of Each Month

Oct: 180.3 mm (7.1 in)

The wettest day on record for each calendar month at Muir Woods. The most was 180.3 mm (7.1 in) on 24 October 2021.

Record daily precipitation for each month at Muir Woods
Month	Record daily precipitation (mm)	Date
Jan	158.8 mm (6.3 in)	21 January 1970
Feb	143.5 mm (5.6 in)	9 February 2014
Mar	71.4 mm (2.8 in)	18 March 1989
Apr	97.8 mm (3.9 in)	8 April 2018
May	45.7 mm (1.8 in)	5 May 2009
Jun	56.9 mm (2.2 in)	25 June 2013
Jul	25.4 mm (1.0 in)	8 July 1974
Aug	23.1 mm (0.9 in)	20 August 1997
Sep	52.3 mm (2.1 in)	20 September 1973
Oct	180.3 mm (7.1 in)	24 October 2021
Nov	144.5 mm (5.7 in)	6 November 1994
Dec	127.0 mm (5.0 in)	27 December 1945

Period of Record Coverage

1967 to 2017

7 years of record at Muir Woods, 1967 to 2017. 7 years have data for under 90 percent of days and are left out of rankings: 1967, 2012, 2013, 2014, 2015, 2016, 2017.

Latest Records

Latest records at Muir Woods
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
13 August 2026	Muir Woods, US	daily rain	3.6 mm (0.14 in)	2.6 mm (0.10 in)	44 years	20 of 100 (Routine)
20 April 2026	Muir Woods, US	daily rain	25.1 mm (1.0 in)	5.5 mm (0.22 in)	35 years	22 of 100 (Routine)
24 February 2026	Muir Woods, US	daily rain	34.8 mm (1.4 in)	2.0 mm (0.08 in)	24 years	16 of 100 (Routine)
19 December 2025	Muir Woods, US	daily rain	75.7 mm (3.0 in)	7.6 mm (0.30 in)	23 years	18 of 100 (Routine)
13 November 2025	Muir Woods, US	daily rain	61.7 mm (2.4 in)	3.8 mm (0.15 in)	52 years	25 of 100 (Routine)
30 September 2025	Muir Woods, US	daily rain (Tie)	6.1 mm (0.24 in)	tie	74 years	7 of 100 (Routine)
13 February 2025	Muir Woods, US	daily rain	63.5 mm (2.5 in)	10.2 mm (0.4 in)	25 years	21 of 100 (Routine)
4 February 2025	Muir Woods, US	daily rain	73.9 mm (2.9 in)	6.6 mm (0.26 in)	75 years	33 of 100 (Routine)
22 November 2024	Muir Woods, US	daily rain	70.6 mm (2.8 in)	19.8 mm (0.8 in)	10 years	23 of 100 (Routine)
17 August 2024	Muir Woods, US	daily rain	2.0 mm (0.08 in)	0.2 mm (0.01 in)	28 years	16 of 100 (Routine)
4 May 2024	Muir Woods, US	daily rain	40.4 mm (1.6 in)	12.5 mm (0.5 in)	68 years	42 of 100 (Notable)
13 April 2024	Muir Woods, US	daily rain	28.2 mm (1.1 in)	6.6 mm (0.26 in)	12 years	16 of 100 (Routine)
8 August 2023	Muir Woods, US	daily rain	3.3 mm (0.13 in)	1.3 mm (0.05 in)	9 years	13 of 100 (Routine)
19 March 2023	Muir Woods, US	daily rain	36.6 mm (1.4 in)	6.9 mm (0.27 in)	69 years	33 of 100 (Routine)
9 March 2023	Muir Woods, US	daily rain	53.8 mm (2.1 in)	7.8 mm (0.31 in)	28 years	22 of 100 (Routine)
9 January 2023	Muir Woods, US	daily rain	57.2 mm (2.3 in)	6.4 mm (0.25 in)	4 years	12 of 100 (Routine)
27 July 2022	Muir Woods, US	daily rain (Tie)	0.3 mm (0.01 in)	tie	24 years	3 of 100 (Routine)
2 July 2022	Muir Woods, US	daily rain	1.8 mm (0.07 in)	0.3 mm (0.01 in)	39 years	20 of 100 (Routine)
5 June 2022	Muir Woods, US	daily rain	51.6 mm (2.0 in)	46.5 mm (1.8 in)	11 years	51 of 100 (Notable)
17 April 2022	Muir Woods, US	daily rain	69.9 mm (2.8 in)	54.4 mm (2.1 in)	28 years	56 of 100 (Notable)

Extremes by Year

1940 to 2026

Yearly extremes at Muir Woods: 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)	2015	36.1 C (97.0 F)	7
Coldest night (TNn)	-3.9 C (25.0 F)	2013	-1.1 C (30.0 F)	7
Wettest day (Rx1day)	180.3 mm (7.1 in)	2021	71.1 mm (2.8 in)	87
Wettest five days (Rx5day)	325.0 mm (12.8 in)	2002	141.0 mm (5.6 in)	87
Longest dry spell (CDD)	181 days	2003	84 days	87

Hottest day (TXx)

The hottest day of the year at Muir Woods, 1940 to 2026. The record is 39.4 C (102.9 F) in 2015, marked on the chart; the median year is 36.1 C (97.0 F).

Hottest day (TXx) at Muir Woods by year
Year	Hottest day (TXx)
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	11.7 C (53.1 F)
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	38.9 C (102.0 F)
2013	33.9 C (93.0 F)
2014	36.1 C (97.0 F)
2015	39.4 C (102.9 F)
2016	36.1 C (97.0 F)
2017	27.2 C (81.0 F)
2018	n/a
2019	n/a
2020	n/a
2021	n/a
2022	n/a
2023	n/a
2024	n/a
2025	n/a
2026	n/a

Coldest night (TNn)

The coldest night of the year at Muir Woods, 1940 to 2026. The record is -3.9 C (25.0 F) in 2013, marked on the chart; the median year is -1.1 C (30.0 F).

Coldest night (TNn) at Muir Woods by year
Year	Coldest night (TNn)
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	5.6 C (42.1 F)
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	-1.1 C (30.0 F)
2013	-3.9 C (25.0 F)
2014	0.6 C (33.1 F)
2015	-1.1 C (30.0 F)
2016	-1.1 C (30.0 F)
2017	-1.7 C (28.9 F)
2018	n/a
2019	n/a
2020	n/a
2021	n/a
2022	n/a
2023	n/a
2024	n/a
2025	n/a
2026	n/a

Wettest day (Rx1day)

The wettest day of the year at Muir Woods, 1940 to 2026. The record is 180.3 mm (7.1 in) in 2021, marked on the chart; the median year is 71.1 mm (2.8 in).

Wettest day (Rx1day) at Muir Woods by year
Year	Wettest day (Rx1day)
1940	63.5 mm (2.5 in)
1941	68.6 mm (2.7 in)
1942	89.9 mm (3.5 in)
1943	44.7 mm (1.8 in)
1944	49.3 mm (1.9 in)
1945	127.0 mm (5.0 in)
1946	62.5 mm (2.5 in)
1947	44.2 mm (1.7 in)
1948	62.7 mm (2.5 in)
1949	36.3 mm (1.4 in)
1950	116.3 mm (4.6 in)
1951	101.6 mm (4.0 in)
1952	103.6 mm (4.1 in)
1953	74.7 mm (2.9 in)
1954	69.6 mm (2.7 in)
1955	97.8 mm (3.9 in)
1956	148.3 mm (5.8 in)
1957	74.7 mm (2.9 in)
1958	84.6 mm (3.3 in)
1959	51.6 mm (2.0 in)
1960	45.7 mm (1.8 in)
1961	70.9 mm (2.8 in)
1962	97.8 mm (3.9 in)
1963	78.0 mm (3.1 in)
1964	47.5 mm (1.9 in)
1965	58.4 mm (2.3 in)
1966	90.2 mm (3.6 in)
1967	116.8 mm (4.6 in)
1968	80.8 mm (3.2 in)
1969	58.9 mm (2.3 in)
1970	158.8 mm (6.3 in)
1971	48.3 mm (1.9 in)
1972	57.9 mm (2.3 in)
1973	80.0 mm (3.1 in)
1974	64.8 mm (2.6 in)
1975	55.1 mm (2.2 in)
1976	57.2 mm (2.3 in)
1977	62.5 mm (2.5 in)
1978	57.2 mm (2.3 in)
1979	56.1 mm (2.2 in)
1980	53.6 mm (2.1 in)
1981	55.1 mm (2.2 in)
1982	127.0 mm (5.0 in)
1983	83.6 mm (3.3 in)
1984	71.6 mm (2.8 in)
1985	86.6 mm (3.4 in)
1986	83.3 mm (3.3 in)
1987	19.1 mm (0.8 in)
1988	49.0 mm (1.9 in)
1989	71.4 mm (2.8 in)
1990	45.0 mm (1.8 in)
1991	55.9 mm (2.2 in)
1992	50.8 mm (2.0 in)
1993	81.0 mm (3.2 in)
1994	144.5 mm (5.7 in)
1995	117.9 mm (4.6 in)
1996	81.5 mm (3.2 in)
1997	47.5 mm (1.9 in)
1998	80.8 mm (3.2 in)
1999	104.1 mm (4.1 in)
2000	53.3 mm (2.1 in)
2001	81.3 mm (3.2 in)
2002	111.8 mm (4.4 in)
2003	79.2 mm (3.1 in)
2004	113.0 mm (4.4 in)
2005	92.7 mm (3.6 in)
2006	96.3 mm (3.8 in)
2007	41.1 mm (1.6 in)
2008	71.6 mm (2.8 in)
2009	47.5 mm (1.9 in)
2010	83.8 mm (3.3 in)
2011	50.8 mm (2.0 in)
2012	58.4 mm (2.3 in)
2013	71.1 mm (2.8 in)
2014	143.5 mm (5.6 in)
2015	79.2 mm (3.1 in)
2016	64.5 mm (2.5 in)
2017	69.1 mm (2.7 in)
2018	97.8 mm (3.9 in)
2019	50.3 mm (2.0 in)
2020	57.7 mm (2.3 in)
2021	180.3 mm (7.1 in)
2022	69.9 mm (2.8 in)
2023	57.2 mm (2.3 in)
2024	79.8 mm (3.1 in)
2025	75.7 mm (3.0 in)
2026	35.8 mm (1.4 in)

Wettest five days (Rx5day)

The wettest five days of the year at Muir Woods, 1940 to 2026. The record is 325.0 mm (12.8 in) in 2002, marked on the chart; the median year is 141.0 mm (5.6 in).

Wettest five days (Rx5day) at Muir Woods by year
Year	Wettest five days (Rx5day)
1940	159.0 mm (6.3 in)
1941	149.3 mm (5.9 in)
1942	196.7 mm (7.7 in)
1943	132.1 mm (5.2 in)
1944	128.6 mm (5.1 in)
1945	298.9 mm (11.8 in)
1946	88.7 mm (3.5 in)
1947	75.2 mm (3.0 in)
1948	89.6 mm (3.5 in)
1949	78.0 mm (3.1 in)
1950	216.6 mm (8.5 in)
1951	157.2 mm (6.2 in)
1952	148.8 mm (5.9 in)
1953	129.1 mm (5.1 in)
1954	88.4 mm (3.5 in)
1955	262.7 mm (10.3 in)
1956	267.4 mm (10.5 in)
1957	125.3 mm (4.9 in)
1958	143.0 mm (5.6 in)
1959	125.2 mm (4.9 in)
1960	89.9 mm (3.5 in)
1961	108.2 mm (4.3 in)
1962	252.7 mm (9.9 in)
1963	182.4 mm (7.2 in)
1964	144.0 mm (5.7 in)
1965	131.4 mm (5.2 in)
1966	109.3 mm (4.3 in)
1967	256.5 mm (10.1 in)
1968	138.8 mm (5.5 in)
1969	127.6 mm (5.0 in)
1970	217.6 mm (8.6 in)
1971	99.3 mm (3.9 in)
1972	145.6 mm (5.7 in)
1973	234.8 mm (9.2 in)
1974	106.8 mm (4.2 in)
1975	155.6 mm (6.1 in)
1976	82.1 mm (3.2 in)
1977	128.6 mm (5.1 in)
1978	143.5 mm (5.6 in)
1979	141.0 mm (5.6 in)
1980	146.0 mm (5.7 in)
1981	134.1 mm (5.3 in)
1982	236.7 mm (9.3 in)
1983	143.1 mm (5.6 in)
1984	161.8 mm (6.4 in)
1985	192.6 mm (7.6 in)
1986	206.6 mm (8.1 in)
1987	24.2 mm (1.0 in)
1988	112.3 mm (4.4 in)
1989	136.9 mm (5.4 in)
1990	78.3 mm (3.1 in)
1991	149.9 mm (5.9 in)
1992	122.0 mm (4.8 in)
1993	167.3 mm (6.6 in)
1994	259.4 mm (10.2 in)
1995	131.1 mm (5.2 in)
1996	135.4 mm (5.3 in)
1997	125.4 mm (4.9 in)
1998	221.0 mm (8.7 in)
1999	147.5 mm (5.8 in)
2000	184.6 mm (7.3 in)
2001	180.1 mm (7.1 in)
2002	325.0 mm (12.8 in)
2003	84.8 mm (3.3 in)
2004	288.8 mm (11.4 in)
2005	199.1 mm (7.8 in)
2006	149.1 mm (5.9 in)
2007	98.3 mm (3.9 in)
2008	167.3 mm (6.6 in)
2009	120.6 mm (4.7 in)
2010	155.1 mm (6.1 in)
2011	117.6 mm (4.6 in)
2012	136.3 mm (5.4 in)
2013	79.8 mm (3.1 in)
2014	279.2 mm (11.0 in)
2015	188.0 mm (7.4 in)
2016	129.5 mm (5.1 in)
2017	139.5 mm (5.5 in)
2018	109.2 mm (4.3 in)
2019	71.1 mm (2.8 in)
2020	80.0 mm (3.1 in)
2021	303.5 mm (11.9 in)
2022	93.5 mm (3.7 in)
2023	102.2 mm (4.0 in)
2024	150.9 mm (5.9 in)
2025	185.1 mm (7.3 in)
2026	64.0 mm (2.5 in)

Longest dry spell (CDD)

The longest dry spell of the year at Muir Woods, 1940 to 2026. The record is 181 days in 2003, marked on the chart; the median year is 84 days.

Longest dry spell (CDD) at Muir Woods by year
Year	Longest dry spell (CDD)
1940	15 days
1941	76 days
1942	105 days
1943	138 days
1944	140 days
1945	86 days
1946	113 days
1947	122 days
1948	77 days
1949	73 days
1950	114 days
1951	91 days
1952	72 days
1953	56 days
1954	31 days
1955	128 days
1956	65 days
1957	75 days
1958	105 days
1959	126 days
1960	134 days
1961	56 days
1962	86 days
1963	89 days
1964	138 days
1965	63 days
1966	85 days
1967	90 days
1968	85 days
1969	99 days
1970	130 days
1971	65 days
1972	36 days
1973	64 days
1974	110 days
1975	82 days
1976	49 days
1977	75 days
1978	68 days
1979	100 days
1980	101 days
1981	86 days
1982	83 days
1983	56 days
1984	84 days
1985	41 days
1986	77 days
1987	115 days
1988	74 days
1989	50 days
1990	92 days
1991	69 days
1992	92 days
1993	131 days
1994	108 days
1995	126 days
1996	87 days
1997	76 days
1998	109 days
1999	46 days
2000	85 days
2001	67 days
2002	70 days
2003	181 days
2004	112 days
2005	118 days
2006	132 days
2007	57 days
2008	85 days
2009	100 days
2010	52 days
2011	37 days
2012	25 days
2013	28 days
2014	41 days
2015	36 days
2016	10 days
2017	51 days
2018	83 days
2019	111 days
2020	51 days
2021	140 days
2022	46 days
2023	48 days
2024	92 days
2025	139 days
2026	76 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

71 years, 1941 to 2025

A day with at least 72.3 mm (2.8 in) of rain is expected about once in 2 years. A day with at least 176.3 mm (6.9 in) of rain is expected about once in 100 years.

Rainfall return levels at Muir Woods: the daily rain expected about once in a given number of years
Expected about once in	A day with at least	Note
2 years	72.3 mm (2.8 in)
5 years	97.8 mm (3.9 in)
10 years	115.6 mm (4.6 in)
25 years	139.2 mm (5.5 in)
50 years	157.5 mm (6.2 in)
100 years	176.3 mm (6.9 in)	Longer than the 71 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, 71 years of values from 1941 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: 158.8 mm (6.3 in) in 1970; 148.3 mm (5.8 in) in 1956; 144.5 mm (5.7 in) in 1994.

Download the Data

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

Days with data per year at Muir Woods
Year	Days with data	Share of year	Complete
1967	1	0%	No
2012	97	27%	No
2013	316	87%	No
2014	323	88%	No
2015	308	84%	No
2016	268	73%	No
2017	140	38%	No