Willow Creek 1 NW Weather Records (USC00049694)

Record envelope, standing records and threshold days for Willow Creek 1 NW (USC00049694), California, United States, with 56 years of record.

Key Facts for Willow Creek 1 NW

Willow Creek 1 NW (USC00049694) is a weather station in California, United States at 40.95 latitude and -123.64 longitude, 141 m (464 ft) above sea level.
The station reports from 1968 to 2023, 56 years of record.
1,464 records set at Willow Creek 1 NW still stand.
Records are tracked for tmax, tmin, prcp, snow, snwd: an element needs 30 years of data to be eligible.
Willow Creek 1 NW tied a daily record high minimum temperature of 15.6 C (60.1 F) on 6 June 2023.

About the Station

Location: California, United States, 40.95 latitude, -123.64 longitude.
Elevation: 141 m (464 ft).
Period of record: 1968 to 2023, 56 years.
Eligible elements: tmax, tmin, 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 Willow Creek 1 NW. 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 Willow Creek 1 NW, 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)	-8.3 C (17.1 F)	n/a	n/a
Feb	24.4 C (75.9 F)	-10.6 C (12.9 F)	n/a	n/a
Mar	29.4 C (84.9 F)	-5.6 C (21.9 F)	n/a	n/a
Apr	35.6 C (96.1 F)	-4.4 C (24.1 F)	n/a	n/a
May	40.6 C (105.1 F)	-2.8 C (27.0 F)	n/a	n/a
Jun	44.4 C (111.9 F)	-1.7 C (28.9 F)	n/a	n/a
Jul	48.3 C (118.9 F)	1.1 C (34.0 F)	n/a	n/a
Aug	46.1 C (115.0 F)	3.9 C (39.0 F)	n/a	n/a
Sep	42.2 C (108.0 F)	0.0 C (32.0 F)	n/a	n/a
Oct	37.2 C (99.0 F)	-5.6 C (21.9 F)	n/a	n/a
Nov	26.7 C (80.1 F)	-7.2 C (19.0 F)	n/a	n/a
Dec	18.3 C (64.9 F)	-15.0 C (5.0 F)	n/a	n/a

Which Years Hold Standing Records

1,464 standing records

1,464 records at Willow Creek 1 NW still stand. 1976 holds the most, with 81.

Standing records at Willow Creek 1 NW by the year they were set
Year set	Standing records
1968	5
1969	47
1970	41
1971	40
1972	53
1973	36
1974	40
1975	66
1976	81
1977	39
1978	34
1979	32
1980	23
1981	33
1982	28
1983	26
1984	19
1985	31
1986	35
1987	44
1988	30
1989	22
1990	41
1991	42
1992	32
1993	28
1994	15
1995	26
1996	39
1997	20
1998	19
1999	19
2000	22
2001	40
2002	19
2003	18
2004	12
2005	18
2006	15
2007	12
2008	18
2009	9
2010	22
2011	14
2012	17
2013	14
2014	22
2015	24
2016	16
2017	13
2018	8
2019	14
2020	2
2021	5
2022	14
2023	10

Wettest Day of Each Month

Jan: 190.5 mm (7.5 in)

The wettest day on record for each calendar month at Willow Creek 1 NW. The most was 190.5 mm (7.5 in) on 16 January 1996.

Record daily precipitation for each month at Willow Creek 1 NW
Month	Record daily precipitation (mm)	Date
Jan	190.5 mm (7.5 in)	16 January 1996
Feb	79.5 mm (3.1 in)	14 February 2000
Mar	139.2 mm (5.5 in)	18 March 1975
Apr	57.2 mm (2.3 in)	8 April 2005
May	57.4 mm (2.3 in)	18 May 2005
Jun	37.3 mm (1.5 in)	1 June 1988
Jul	39.6 mm (1.6 in)	18 July 2007
Aug	68.6 mm (2.7 in)	30 August 1983
Sep	53.3 mm (2.1 in)	26 September 1986
Oct	63.0 mm (2.5 in)	19 October 2007
Nov	85.9 mm (3.4 in)	18 November 1996
Dec	114.3 mm (4.5 in)	8 December 2004

Period of Record Coverage

1968 to 2023

56 years of record at Willow Creek 1 NW, 1968 to 2023. 40 years have data for under 90 percent of days and are left out of rankings: 1968, 1978, 1979, 1980, 1985, 1986, 1987, 1988 and others.

Days with data per year at Willow Creek 1 NW
Year	Days with data	Share of year	Complete
1968	34	9%	No
1969	365	100%	Yes
1970	341	93%	Yes
1971	333	91%	Yes
1972	339	93%	Yes
1973	360	99%	Yes
1974	345	95%	Yes
1975	339	93%	Yes
1976	358	98%	Yes
1977	336	92%	Yes
1978	295	81%	No
1979	289	79%	No
1980	239	65%	No
1981	356	98%	Yes
1982	352	96%	Yes
1983	341	93%	Yes
1984	330	90%	Yes
1985	316	87%	No
1986	296	81%	No
1987	314	86%	No
1988	311	85%	No
1989	304	83%	No
1990	322	88%	No
1991	302	83%	No
1992	302	83%	No
1993	287	79%	No
1994	311	85%	No
1995	301	82%	No
1996	346	95%	Yes
1997	341	93%	Yes
1998	323	88%	No
1999	332	91%	Yes
2000	273	75%	No
2001	272	75%	No
2002	217	59%	No
2003	205	56%	No
2004	227	62%	No
2005	235	64%	No
2006	194	53%	No
2007	223	61%	No
2008	206	56%	No
2009	204	56%	No
2010	223	61%	No
2011	229	63%	No
2012	207	57%	No
2013	196	54%	No
2014	207	57%	No
2015	229	63%	No
2016	187	51%	No
2017	193	53%	No
2018	199	55%	No
2019	187	51%	No
2020	69	19%	No
2021	67	18%	No
2022	200	55%	No
2023	113	31%	No

Latest Records

Latest records at Willow Creek 1 NW
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
6 June 2023	Willow Creek 1 NW, US	daily high min (Tie)	15.6 C (60.1 F)	tie	37 years	4 of 100 (Routine)
5 May 2023	Willow Creek 1 NW, US	daily low max	14.4 C (57.9 F)	0.6 C (1.1 F)	49 years	19 of 100 (Routine)
1 May 2023	Willow Creek 1 NW, US	daily low max	11.7 C (53.1 F)	2.7 C (4.9 F)	36 years	19 of 100 (Routine)
28 April 2023	Willow Creek 1 NW, US	daily high min	12.2 C (54.0 F)	2.8 C (5.0 F)	44 years	27 of 100 (Routine)
28 March 2023	Willow Creek 1 NW, US	daily rain	39.9 mm (1.6 in)	1.5 mm (0.06 in)	37 years	16 of 100 (Routine)
14 March 2023	Willow Creek 1 NW, US	daily low max (Tie)	10.0 C (50.0 F)	tie	42 years	4 of 100 (Routine)
10 March 2023	Willow Creek 1 NW, US	daily rain	48.3 mm (1.9 in)	28.0 mm (1.1 in)	16 years	28 of 100 (Routine)
8 March 2023	Willow Creek 1 NW, US	daily low max (Tie)	8.9 C (48.0 F)	tie	12 years	2 of 100 (Routine)
7 March 2023	Willow Creek 1 NW, US	daily low max (Tie)	6.7 C (44.1 F)	tie	12 years	2 of 100 (Routine)
27 February 2023	Willow Creek 1 NW, US	daily low max	2.8 C (37.0 F)	5.5 C (9.9 F)	5 years	19 of 100 (Routine)
23 February 2023	Willow Creek 1 NW, US	daily low max	4.4 C (39.9 F)	1.2 C (2.2 F)	51 years	23 of 100 (Routine)
22 February 2023	Willow Creek 1 NW, US	daily low max	5.6 C (42.1 F)	1.1 C (2.0 F)	29 years	15 of 100 (Routine)
21 February 2023	Willow Creek 1 NW, US	daily low max	7.8 C (46.0 F)	1.1 C (2.0 F)	53 years	23 of 100 (Routine)
14 February 2023	Willow Creek 1 NW, US	daily low max	6.7 C (44.1 F)	0.5 C (0.9 F)	32 years	15 of 100 (Routine)
13 February 2023	Willow Creek 1 NW, US	daily low min	-4.4 C (24.1 F)	1.6 C (2.9 F)	21 years	15 of 100 (Routine)
13 January 2023	Willow Creek 1 NW, US	daily high max (Tie)	15.6 C (60.1 F)	tie	36 years	4 of 100 (Routine)
5 January 2023	Willow Creek 1 NW, US	daily high min	8.3 C (46.9 F)	1.1 C (2.0 F)	27 years	16 of 100 (Routine)
5 January 2023	Willow Creek 1 NW, US	daily rain	41.9 mm (1.6 in)	10.4 mm (0.4 in)	7 years	12 of 100 (Routine)
2 December 2022	Willow Creek 1 NW, US	daily low max (Tie)	6.7 C (44.1 F)	tie	52 years	5 of 100 (Routine)
8 November 2022	Willow Creek 1 NW, US	daily low max	7.2 C (45.0 F)	3.4 C (6.1 F)	47 years	27 of 100 (Routine)

Climate Trend

11 complete years, 1969 to 1999

One stripe for each of 11 complete years at Willow Creek 1 NW, 1969 to 1999. Blue stripes are years cooler than the station's own mean of 13.9 C (57.0 F); red stripes are warmer. The coolest year was 1976, at 12.9 C (55.3 F), and the warmest was 1996, at 15.0 C (58.9 F). The strongest colour marks a difference of 1.1 C (2.0 F).

Annual mean temperature at Willow Creek 1 NW as warming stripes, 1969 to 1999
Year	Annual mean temperature	Difference from the station mean
1969	13.9 C	-0.03 C
1973	14.4 C	+0.51 C
1974	13.8 C	-0.07 C
1976	12.9 C	-0.96 C
1977	14.2 C	+0.28 C
1981	14.1 C	+0.18 C
1982	13.1 C	-0.82 C
1983	13.9 C	+0.01 C
1996	15.0 C	+1.08 C
1997	14.3 C	+0.45 C
1999	13.2 C	-0.65 C

This station does not have enough complete years (30 are needed) to fit a temperature trend.

A year is complete when all 12 months have at least 20 days of both daily maximum and daily minimum readings. The annual mean is the mean of the monthly means. The trend describes this one station over this period; it does not say what caused the change.

Extremes by Year

1968 to 2023

Yearly extremes at Willow Creek 1 NW: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Hottest day (TXx)	48.3 C (118.9 F)	1972	42.5 C (108.5 F)	56
Coldest night (TNn)	-15.0 C (5.0 F)	1972	-4.4 C (24.1 F)	56
Wettest day (Rx1day)	190.5 mm (7.5 in)	1996	66.4 mm (2.6 in)	56
Wettest five days (Rx5day)	306.1 mm (12.1 in)	1996	111.4 mm (4.4 in)	56
Longest dry spell (CDD)	147 days	1998	61 days	56

Hottest day (TXx)

The hottest day of the year at Willow Creek 1 NW, 1968 to 2023. The record is 48.3 C (118.9 F) in 1972, marked on the chart; the median year is 42.5 C (108.5 F).

Hottest day (TXx) at Willow Creek 1 NW by year
Year	Hottest day (TXx)
1968	34.4 C (93.9 F)
1969	43.9 C (111.0 F)
1970	42.8 C (109.0 F)
1971	42.2 C (108.0 F)
1972	48.3 C (118.9 F)
1973	44.4 C (111.9 F)
1974	44.4 C (111.9 F)
1975	43.3 C (109.9 F)
1976	40.6 C (105.1 F)
1977	43.9 C (111.0 F)
1978	46.1 C (115.0 F)
1979	42.8 C (109.0 F)
1980	43.9 C (111.0 F)
1981	46.1 C (115.0 F)
1982	41.7 C (107.1 F)
1983	41.1 C (106.0 F)
1984	43.3 C (109.9 F)
1985	43.9 C (111.0 F)
1986	42.8 C (109.0 F)
1987	45.6 C (114.1 F)
1988	44.4 C (111.9 F)
1989	40.0 C (104.0 F)
1990	42.8 C (109.0 F)
1991	45.6 C (114.1 F)
1992	44.4 C (111.9 F)
1993	43.9 C (111.0 F)
1994	42.2 C (108.0 F)
1995	42.2 C (108.0 F)
1996	44.4 C (111.9 F)
1997	43.3 C (109.9 F)
1998	45.6 C (114.1 F)
1999	43.3 C (109.9 F)
2000	42.2 C (108.0 F)
2001	42.2 C (108.0 F)
2002	42.2 C (108.0 F)
2003	42.8 C (109.0 F)
2004	41.1 C (106.0 F)
2005	41.1 C (106.0 F)
2006	42.8 C (109.0 F)
2007	39.4 C (102.9 F)
2008	40.0 C (104.0 F)
2009	41.7 C (107.1 F)
2010	40.6 C (105.1 F)
2011	38.9 C (102.0 F)
2012	41.1 C (106.0 F)
2013	41.1 C (106.0 F)
2014	41.1 C (106.0 F)
2015	42.8 C (109.0 F)
2016	42.2 C (108.0 F)
2017	42.8 C (109.0 F)
2018	40.6 C (105.1 F)
2019	40.6 C (105.1 F)
2020	41.1 C (106.0 F)
2021	35.6 C (96.1 F)
2022	41.7 C (107.1 F)
2023	41.7 C (107.1 F)

Coldest night (TNn)

The coldest night of the year at Willow Creek 1 NW, 1968 to 2023. The record is -15.0 C (5.0 F) in 1972, marked on the chart; the median year is -4.4 C (24.1 F).

Coldest night (TNn) at Willow Creek 1 NW by year
Year	Coldest night (TNn)
1968	-2.8 C (27.0 F)
1969	-2.8 C (27.0 F)
1970	-5.0 C (23.0 F)
1971	-5.6 C (21.9 F)
1972	-15.0 C (5.0 F)
1973	-2.8 C (27.0 F)
1974	-5.0 C (23.0 F)
1975	-6.7 C (19.9 F)
1976	-10.6 C (12.9 F)
1977	-7.2 C (19.0 F)
1978	-7.2 C (19.0 F)
1979	-8.3 C (17.1 F)
1980	-7.2 C (19.0 F)
1981	-1.1 C (30.0 F)
1982	-5.0 C (23.0 F)
1983	-2.8 C (27.0 F)
1984	-2.8 C (27.0 F)
1985	-4.4 C (24.1 F)
1986	-2.2 C (28.0 F)
1987	-5.6 C (21.9 F)
1988	-5.0 C (23.0 F)
1989	-9.4 C (15.1 F)
1990	-10.0 C (14.0 F)
1991	-7.8 C (18.0 F)
1992	-1.1 C (30.0 F)
1993	-4.4 C (24.1 F)
1994	-3.9 C (25.0 F)
1995	-1.7 C (28.9 F)
1996	-1.1 C (30.0 F)
1997	-6.7 C (19.9 F)
1998	-8.3 C (17.1 F)
1999	-2.2 C (28.0 F)
2000	-5.0 C (23.0 F)
2001	-7.2 C (19.0 F)
2002	-4.4 C (24.1 F)
2003	-3.3 C (26.1 F)
2004	-2.8 C (27.0 F)
2005	-2.2 C (28.0 F)
2006	-3.9 C (25.0 F)
2007	-3.3 C (26.1 F)
2008	-2.2 C (28.0 F)
2009	-7.8 C (18.0 F)
2010	-1.7 C (28.9 F)
2011	-4.4 C (24.1 F)
2012	-5.0 C (23.0 F)
2013	-9.4 C (15.1 F)
2014	-2.8 C (27.0 F)
2015	-5.6 C (21.9 F)
2016	-2.2 C (28.0 F)
2017	-3.3 C (26.1 F)
2018	-3.9 C (25.0 F)
2019	-3.3 C (26.1 F)
2020	-2.2 C (28.0 F)
2021	-0.6 C (30.9 F)
2022	-3.3 C (26.1 F)
2023	-5.0 C (23.0 F)

Wettest day (Rx1day)

The wettest day of the year at Willow Creek 1 NW, 1968 to 2023. The record is 190.5 mm (7.5 in) in 1996, marked on the chart; the median year is 66.4 mm (2.6 in).

Wettest day (Rx1day) at Willow Creek 1 NW by year
Year	Wettest day (Rx1day)
1968	61.0 mm (2.4 in)
1969	48.5 mm (1.9 in)
1970	75.2 mm (3.0 in)
1971	58.4 mm (2.3 in)
1972	98.6 mm (3.9 in)
1973	59.2 mm (2.3 in)
1974	73.7 mm (2.9 in)
1975	139.2 mm (5.5 in)
1976	35.6 mm (1.4 in)
1977	81.3 mm (3.2 in)
1978	61.0 mm (2.4 in)
1979	121.9 mm (4.8 in)
1980	83.1 mm (3.3 in)
1981	87.6 mm (3.4 in)
1982	76.2 mm (3.0 in)
1983	75.2 mm (3.0 in)
1984	45.7 mm (1.8 in)
1985	75.4 mm (3.0 in)
1986	69.9 mm (2.8 in)
1987	88.1 mm (3.5 in)
1988	79.2 mm (3.1 in)
1989	74.2 mm (2.9 in)
1990	41.1 mm (1.6 in)
1991	61.2 mm (2.4 in)
1992	84.3 mm (3.3 in)
1993	62.5 mm (2.5 in)
1994	78.7 mm (3.1 in)
1995	90.7 mm (3.6 in)
1996	190.5 mm (7.5 in)
1997	31.0 mm (1.2 in)
1998	41.1 mm (1.6 in)
1999	81.3 mm (3.2 in)
2000	79.5 mm (3.1 in)
2001	81.3 mm (3.2 in)
2002	112.5 mm (4.4 in)
2003	73.7 mm (2.9 in)
2004	114.3 mm (4.5 in)
2005	79.5 mm (3.1 in)
2006	69.1 mm (2.7 in)
2007	63.0 mm (2.5 in)
2008	73.7 mm (2.9 in)
2009	36.1 mm (1.4 in)
2010	63.8 mm (2.5 in)
2011	45.7 mm (1.8 in)
2012	58.7 mm (2.3 in)
2013	45.2 mm (1.8 in)
2014	60.2 mm (2.4 in)
2015	50.3 mm (2.0 in)
2016	57.2 mm (2.3 in)
2017	51.6 mm (2.0 in)
2018	51.8 mm (2.0 in)
2019	54.6 mm (2.1 in)
2020	29.2 mm (1.1 in)
2021	36.8 mm (1.4 in)
2022	47.0 mm (1.9 in)
2023	48.3 mm (1.9 in)

Wettest five days (Rx5day)

The wettest five days of the year at Willow Creek 1 NW, 1968 to 2023. The record is 306.1 mm (12.1 in) in 1996, marked on the chart; the median year is 111.4 mm (4.4 in).

Wettest five days (Rx5day) at Willow Creek 1 NW by year
Year	Wettest five days (Rx5day)
1968	52.6 mm (2.1 in)
1969	89.1 mm (3.5 in)
1970	93.5 mm (3.7 in)
1971	168.0 mm (6.6 in)
1972	205.0 mm (8.1 in)
1973	148.9 mm (5.9 in)
1974	131.1 mm (5.2 in)
1975	115.6 mm (4.6 in)
1976	81.4 mm (3.2 in)
1977	235.5 mm (9.3 in)
1978	76.1 mm (3.0 in)
1979	180.8 mm (7.1 in)
1980	197.5 mm (7.8 in)
1981	193.3 mm (7.6 in)
1982	166.6 mm (6.6 in)
1983	159.3 mm (6.3 in)
1984	119.6 mm (4.7 in)
1985	141.3 mm (5.6 in)
1986	128.9 mm (5.1 in)
1987	201.6 mm (7.9 in)
1988	204.6 mm (8.1 in)
1989	123.4 mm (4.9 in)
1990	110.0 mm (4.3 in)
1991	67.8 mm (2.7 in)
1992	54.9 mm (2.2 in)
1993	61.5 mm (2.4 in)
1994	106.0 mm (4.2 in)
1995	218.2 mm (8.6 in)
1996	306.1 mm (12.1 in)
1997	47.5 mm (1.9 in)
1998	114.5 mm (4.5 in)
1999	86.1 mm (3.4 in)
2000	129.7 mm (5.1 in)
2001	126.3 mm (5.0 in)
2002	132.8 mm (5.2 in)
2003	144.9 mm (5.7 in)
2004	112.8 mm (4.4 in)
2005	173.8 mm (6.8 in)
2006	115.5 mm (4.5 in)
2007	138.2 mm (5.4 in)
2008	57.8 mm (2.3 in)
2009	28.5 mm (1.1 in)
2010	103.6 mm (4.1 in)
2011	106.7 mm (4.2 in)
2012	108.7 mm (4.3 in)
2013	40.1 mm (1.6 in)
2014	34.0 mm (1.3 in)
2015	74.9 mm (2.9 in)
2016	87.7 mm (3.5 in)
2017	53.5 mm (2.1 in)
2018	55.4 mm (2.2 in)
2019	32.8 mm (1.3 in)
2020	0.0 mm (0.00 in)
2021	0.0 mm (0.00 in)
2022	24.9 mm (1.0 in)
2023	24.2 mm (1.0 in)

Longest dry spell (CDD)

The longest dry spell of the year at Willow Creek 1 NW, 1968 to 2023. The record is 147 days in 1998, marked on the chart; the median year is 61 days.

Longest dry spell (CDD) at Willow Creek 1 NW by year
Year	Longest dry spell (CDD)
1968	3 days
1969	55 days
1970	83 days
1971	60 days
1972	65 days
1973	94 days
1974	82 days
1975	63 days
1976	39 days
1977	90 days
1978	61 days
1979	41 days
1980	31 days
1981	103 days
1982	56 days
1983	32 days
1984	83 days
1985	71 days
1986	88 days
1987	92 days
1988	116 days
1989	53 days
1990	42 days
1991	54 days
1992	66 days
1993	74 days
1994	128 days
1995	66 days
1996	71 days
1997	49 days
1998	147 days
1999	143 days
2000	53 days
2001	55 days
2002	129 days
2003	34 days
2004	84 days
2005	102 days
2006	94 days
2007	77 days
2008	107 days
2009	62 days
2010	98 days
2011	12 days
2012	5 days
2013	6 days
2014	5 days
2015	5 days
2016	5 days
2017	5 days
2018	5 days
2019	5 days
2020	5 days
2021	12 days
2022	24 days
2023	52 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 Willow Creek 1 NW standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Willow Creek 1 NW 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).