Willow West Weather Records (USC00509861)

Record envelope, standing records and threshold days for Willow West (USC00509861), Alaska, United States, with 52 years of record.

Key Facts for Willow West

Willow West (USC00509861) is a weather station in Alaska, United States at 61.75 latitude and -150.05 longitude, 63 m (205 ft) above sea level.
The station reports from 1960 to 2011, 52 years of record.
1,464 records set at Willow West still stand.
Records are tracked for no element yet: an element needs 30 years of data to be eligible.

About the Station

Location: Alaska, United States, 61.75 latitude, -150.05 longitude.
Elevation: 63 m (205 ft).
Period of record: 1960 to 2011, 52 years.
Eligible elements: none yet.

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 West. 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 West, with 2026 drawn through them
Month	Highest record high	Lowest record low	2026 highest maximum	2026 lowest minimum
Jan	6.7 C (44.1 F)	-48.9 C (-56.0 F)	n/a	n/a
Feb	8.3 C (46.9 F)	-45.6 C (-50.1 F)	n/a	n/a
Mar	11.7 C (53.1 F)	-46.7 C (-52.1 F)	n/a	n/a
Apr	21.7 C (71.1 F)	-27.2 C (-17.0 F)	n/a	n/a
May	27.8 C (82.0 F)	-13.3 C (8.1 F)	n/a	n/a
Jun	32.2 C (90.0 F)	-2.2 C (28.0 F)	n/a	n/a
Jul	35.6 C (96.1 F)	1.1 C (34.0 F)	n/a	n/a
Aug	30.6 C (87.1 F)	-5.6 C (21.9 F)	n/a	n/a
Sep	22.2 C (72.0 F)	-12.2 C (10.0 F)	n/a	n/a
Oct	22.2 C (72.0 F)	-28.3 C (-18.9 F)	n/a	n/a
Nov	11.1 C (52.0 F)	-38.3 C (-36.9 F)	n/a	n/a
Dec	9.4 C (48.9 F)	-44.4 C (-47.9 F)	n/a	n/a

Which Years Hold Standing Records

1,464 standing records

1,464 records at Willow West still stand. 1964 holds the most, with 89.

Standing records at Willow West by the year they were set
Year set	Standing records
1960	28
1961	17
1962	38
1963	42
1964	89
1965	78
1966	50
1967	51
1968	55
1969	80
1970	69
1971	57
1989	3
1990	55
1991	20
1992	63
1993	23
1994	32
1995	43
1996	41
1997	40
1998	27
1999	56
2000	37
2001	54
2002	56
2003	44
2004	39
2005	42
2006	17
2007	24
2008	20
2009	44
2010	23
2011	7

Wettest Day of Each Month

Nov: 137.2 mm (5.4 in)

The wettest day on record for each calendar month at Willow West. The most was 137.2 mm (5.4 in) on 5 November 1996.

Record daily precipitation for each month at Willow West
Month	Record daily precipitation (mm)	Date
Jan	76.2 mm (3.0 in)	29 January 1997
Feb	88.9 mm (3.5 in)	12 February 2008
Mar	43.2 mm (1.7 in)	3 March 1967
Apr	116.8 mm (4.6 in)	14 April 2010
May	87.6 mm (3.4 in)	16 May 1964
Jun	114.3 mm (4.5 in)	27 June 2010
Jul	36.1 mm (1.4 in)	17 July 1963
Aug	104.1 mm (4.1 in)	24 August 1995
Sep	99.1 mm (3.9 in)	2 September 1995
Oct	96.5 mm (3.8 in)	31 October 1996
Nov	137.2 mm (5.4 in)	5 November 1996
Dec	51.8 mm (2.0 in)	23 December 1970

Period of Record Coverage

1960 to 2011

35 years of record at Willow West, 1960 to 2011. 27 years have data for under 90 percent of days and are left out of rankings: 1960, 1961, 1962, 1963, 1966, 1968, 1971, 1989 and others.

Days with data per year at Willow West
Year	Days with data	Share of year	Complete
1960	159	43%	No
1961	106	29%	No
1962	176	48%	No
1963	254	70%	No
1964	341	93%	Yes
1965	348	95%	Yes
1966	286	78%	No
1967	347	95%	Yes
1968	317	87%	No
1969	361	99%	Yes
1970	353	97%	Yes
1971	138	38%	No
1989	28	8%	No
1990	299	82%	No
1991	288	79%	No
1992	280	77%	No
1993	198	54%	No
1994	289	79%	No
1995	238	65%	No
1996	252	69%	No
1997	233	64%	No
1998	348	95%	Yes
1999	345	95%	Yes
2000	330	90%	Yes
2001	322	88%	No
2002	311	85%	No
2003	272	75%	No
2004	235	64%	No
2005	255	70%	No
2006	192	53%	No
2007	160	44%	No
2008	168	46%	No
2009	280	77%	No
2010	227	62%	No
2011	166	45%	No

Latest Records

No records were set at this station in the latest data.

Climate Trend

10 complete years, 1964 to 2002

One stripe for each of 10 complete years at Willow West, 1964 to 2002. Blue stripes are years cooler than the station's own mean of 0.0 C (32.1 F); red stripes are warmer. The coolest year was 1999, at -1.3 C (29.7 F), and the warmest was 2002, at 1.9 C (35.4 F). The strongest colour marks a difference of 1.9 C (3.4 F).

Annual mean temperature at Willow West as warming stripes, 1964 to 2002
Year	Annual mean temperature	Difference from the station mean
1964	-1.2 C	-1.21 C
1965	-1.2 C	-1.26 C
1967	-0.5 C	-0.54 C
1969	0.8 C	+0.79 C
1970	-0.2 C	-0.19 C
1998	0.2 C	+0.14 C
1999	-1.3 C	-1.33 C
2000	0.9 C	+0.90 C
2001	0.9 C	+0.83 C
2002	1.9 C	+1.88 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

1960 to 2011

Yearly extremes at Willow West: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Hottest day (TXx)	35.6 C (96.1 F)	2009	27.8 C (82.0 F)	35
Coldest night (TNn)	-48.9 C (-56.0 F)	1971	-38.3 C (-36.9 F)	35
Wettest day (Rx1day)	137.2 mm (5.4 in)	1996	43.7 mm (1.7 in)	35
Wettest five days (Rx5day)	391.2 mm (15.4 in)	1995	66.5 mm (2.6 in)	35
Longest dry spell (CDD)	68 days	1996	23 days	35

Hottest day (TXx)

The hottest day of the year at Willow West, 1960 to 2011. The record is 35.6 C (96.1 F) in 2009, marked on the chart; the median year is 27.8 C (82.0 F).

Hottest day (TXx) at Willow West by year
Year	Hottest day (TXx)
1960	28.9 C (84.0 F)
1961	26.7 C (80.1 F)
1962	28.9 C (84.0 F)
1963	26.7 C (80.1 F)
1964	27.8 C (82.0 F)
1965	26.1 C (79.0 F)
1966	29.4 C (84.9 F)
1967	28.9 C (84.0 F)
1968	27.8 C (82.0 F)
1969	32.2 C (90.0 F)
1970	28.9 C (84.0 F)
1971	13.3 C (55.9 F)
1989	3.3 C (37.9 F)
1990	28.3 C (82.9 F)
1991	27.8 C (82.0 F)
1992	27.2 C (81.0 F)
1993	26.1 C (79.0 F)
1994	25.0 C (77.0 F)
1995	23.9 C (75.0 F)
1996	26.1 C (79.0 F)
1997	28.9 C (84.0 F)
1998	25.0 C (77.0 F)
1999	30.0 C (86.0 F)
2000	24.4 C (75.9 F)
2001	28.9 C (84.0 F)
2002	28.3 C (82.9 F)
2003	28.9 C (84.0 F)
2004	30.6 C (87.1 F)
2005	30.6 C (87.1 F)
2006	26.1 C (79.0 F)
2007	30.0 C (86.0 F)
2008	16.7 C (62.1 F)
2009	35.6 C (96.1 F)
2010	25.0 C (77.0 F)
2011	27.2 C (81.0 F)

Coldest night (TNn)

The coldest night of the year at Willow West, 1960 to 2011. The record is -48.9 C (-56.0 F) in 1971, marked on the chart; the median year is -38.3 C (-36.9 F).

Coldest night (TNn) at Willow West by year
Year	Coldest night (TNn)
1960	-12.8 C (9.0 F)
1961	-3.3 C (26.1 F)
1962	-19.4 C (-2.9 F)
1963	-34.4 C (-29.9 F)
1964	-44.4 C (-47.9 F)
1965	-41.1 C (-42.0 F)
1966	-35.6 C (-32.1 F)
1967	-37.8 C (-36.0 F)
1968	-41.7 C (-43.1 F)
1969	-38.3 C (-36.9 F)
1970	-44.4 C (-47.9 F)
1971	-48.9 C (-56.0 F)
1989	-38.3 C (-36.9 F)
1990	-42.2 C (-44.0 F)
1991	-35.0 C (-31.0 F)
1992	-36.7 C (-34.1 F)
1993	-41.1 C (-42.0 F)
1994	-38.3 C (-36.9 F)
1995	-36.1 C (-33.0 F)
1996	-37.8 C (-36.0 F)
1997	-41.1 C (-42.0 F)
1998	-35.6 C (-32.1 F)
1999	-45.6 C (-50.1 F)
2000	-36.1 C (-33.0 F)
2001	-38.9 C (-38.0 F)
2002	-35.0 C (-31.0 F)
2003	-38.3 C (-36.9 F)
2004	-41.1 C (-42.0 F)
2005	-36.1 C (-33.0 F)
2006	-40.6 C (-41.1 F)
2007	-34.4 C (-29.9 F)
2008	-38.3 C (-36.9 F)
2009	-40.0 C (-40.0 F)
2010	-25.6 C (-14.1 F)
2011	-28.9 C (-20.0 F)

Wettest day (Rx1day)

The wettest day of the year at Willow West, 1960 to 2011. The record is 137.2 mm (5.4 in) in 1996, marked on the chart; the median year is 43.7 mm (1.7 in).

Wettest day (Rx1day) at Willow West by year
Year	Wettest day (Rx1day)
1960	34.0 mm (1.3 in)
1961	35.1 mm (1.4 in)
1962	26.4 mm (1.0 in)
1963	48.3 mm (1.9 in)
1964	87.6 mm (3.4 in)
1965	40.6 mm (1.6 in)
1966	22.9 mm (0.9 in)
1967	43.7 mm (1.7 in)
1968	30.5 mm (1.2 in)
1969	20.8 mm (0.8 in)
1970	51.8 mm (2.0 in)
1971	14.0 mm (0.6 in)
1989	19.6 mm (0.8 in)
1990	34.5 mm (1.4 in)
1991	30.5 mm (1.2 in)
1992	53.3 mm (2.1 in)
1993	29.5 mm (1.2 in)
1994	58.4 mm (2.3 in)
1995	104.1 mm (4.1 in)
1996	137.2 mm (5.4 in)
1997	76.2 mm (3.0 in)
1998	27.9 mm (1.1 in)
1999	56.4 mm (2.2 in)
2000	45.7 mm (1.8 in)
2001	35.6 mm (1.4 in)
2002	48.3 mm (1.9 in)
2003	73.7 mm (2.9 in)
2004	33.0 mm (1.3 in)
2005	46.5 mm (1.8 in)
2006	69.1 mm (2.7 in)
2007	33.0 mm (1.3 in)
2008	88.9 mm (3.5 in)
2009	63.5 mm (2.5 in)
2010	116.8 mm (4.6 in)
2011	30.5 mm (1.2 in)

Wettest five days (Rx5day)

The wettest five days of the year at Willow West, 1960 to 2011. The record is 391.2 mm (15.4 in) in 1995, marked on the chart; the median year is 66.5 mm (2.6 in).

Wettest five days (Rx5day) at Willow West by year
Year	Wettest five days (Rx5day)
1960	52.3 mm (2.1 in)
1961	80.6 mm (3.2 in)
1962	44.9 mm (1.8 in)
1963	61.0 mm (2.4 in)
1964	88.9 mm (3.5 in)
1965	82.5 mm (3.2 in)
1966	42.2 mm (1.7 in)
1967	86.4 mm (3.4 in)
1968	63.6 mm (2.5 in)
1969	48.1 mm (1.9 in)
1970	47.2 mm (1.9 in)
1971	23.2 mm (0.9 in)
1989	30.8 mm (1.2 in)
1990	82.3 mm (3.2 in)
1991	42.7 mm (1.7 in)
1992	54.1 mm (2.1 in)
1993	58.9 mm (2.3 in)
1994	101.6 mm (4.0 in)
1995	391.2 mm (15.4 in)
1996	139.7 mm (5.5 in)
1997	127.0 mm (5.0 in)
1998	39.6 mm (1.6 in)
1999	68.9 mm (2.7 in)
2000	62.9 mm (2.5 in)
2001	46.3 mm (1.8 in)
2002	79.5 mm (3.1 in)
2003	90.7 mm (3.6 in)
2004	48.5 mm (1.9 in)
2005	84.0 mm (3.3 in)
2006	125.8 mm (5.0 in)
2007	83.6 mm (3.3 in)
2008	94.5 mm (3.7 in)
2009	66.5 mm (2.6 in)
2010	127.0 mm (5.0 in)
2011	43.2 mm (1.7 in)

Longest dry spell (CDD)

The longest dry spell of the year at Willow West, 1960 to 2011. The record is 68 days in 1996, marked on the chart; the median year is 23 days.

Longest dry spell (CDD) at Willow West by year
Year	Longest dry spell (CDD)
1960	16 days
1961	7 days
1962	18 days
1963	38 days
1964	20 days
1965	30 days
1966	21 days
1967	26 days
1968	40 days
1969	43 days
1970	25 days
1971	37 days
1989	4 days
1990	19 days
1991	18 days
1992	28 days
1993	47 days
1994	24 days
1995	22 days
1996	68 days
1997	28 days
1998	24 days
1999	23 days
2000	47 days
2001	23 days
2002	22 days
2003	10 days
2004	17 days
2005	22 days
2006	32 days
2007	9 days
2008	17 days
2009	17 days
2010	26 days
2011	13 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 West standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Willow West 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 2026-10-15 (15 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).