Imnaviat Creek Weather Records (USS0049T01S)

Record envelope, standing records and threshold days for Imnaviat Creek (USS0049T01S), Alaska, United States, with 46 years of record.

Key Facts for Imnaviat Creek

Imnaviat Creek (USS0049T01S) is a weather station in Alaska, United States at 68.62 latitude and -149.30 longitude, 930 m (3,050 ft) above sea level.
The station reports from 1981 to 2026, 46 years of record.
1,464 records set at Imnaviat Creek still stand.
Records are tracked for prcp: an element needs 30 years of data to be eligible.
Imnaviat Creek tied a daily record precipitation of 2.5 mm (0.10 in) on 28 September 2026 (provisional).

Provisional Records

Records set in the last 60 days are provisional until they clear the revision window.

About the Station

Location: Alaska, United States, 68.62 latitude, -149.30 longitude.
Elevation: 930 m (3,050 ft).
Period of record: 1981 to 2026, 46 years.
Eligible elements: prcp.

Daily Record Envelope and 2026

43 days at or beyond a record

The band shows the record high and record low for each calendar day at Imnaviat Creek. The lines show the 2026 daily maximum and minimum. 43 days in 2026 matched or passed a record. Temperatures are in degrees Celsius.

Daily record high and record low at Imnaviat Creek, with 2026 drawn through them
Month	Highest record high	Lowest record low	2026 highest maximum	2026 lowest minimum
Jan	9.2 C (48.6 F)	-41.2 C (-42.2 F)	5.6 C (42.1 F)	-40.6 C (-41.1 F)
Feb	7.7 C (45.9 F)	-43.2 C (-45.8 F)	-5.0 C (23.0 F)	-38.9 C (-38.0 F)
Mar	8.3 C (46.9 F)	-39.4 C (-38.9 F)	-6.7 C (19.9 F)	-37.2 C (-35.0 F)
Apr	13.9 C (57.0 F)	-37.8 C (-36.0 F)	5.6 C (42.1 F)	-31.7 C (-25.1 F)
May	21.1 C (70.0 F)	-24.8 C (-12.6 F)	10.0 C (50.0 F)	-16.7 C (1.9 F)
Jun	25.4 C (77.7 F)	-10.8 C (12.6 F)	20.0 C (68.0 F)	-8.3 C (17.1 F)
Jul	25.6 C (78.1 F)	-3.9 C (25.0 F)	21.1 C (70.0 F)	-3.9 C (25.0 F)
Aug	25.6 C (78.1 F)	-8.1 C (17.4 F)	20.0 C (68.0 F)	-4.4 C (24.1 F)
Sep	17.2 C (63.0 F)	-15.6 C (3.9 F)	12.2 C (54.0 F)	-10.6 C (12.9 F)
Oct	14.1 C (57.4 F)	-22.7 C (-8.9 F)	3.3 C (37.9 F)	-17.8 C (0.0 F)
Nov	9.3 C (48.7 F)	-38.9 C (-38.0 F)	n/a	n/a
Dec	10.2 C (50.4 F)	-37.8 C (-36.0 F)	n/a	n/a

Which Years Hold Standing Records

1,464 standing records

1,464 records at Imnaviat Creek still stand. 2014 holds the most, with 108.

Standing records at Imnaviat Creek by the year they were set
Year set	Standing records
2006	7
2007	89
2008	74
2009	94
2010	68
2011	43
2012	93
2013	98
2014	108
2015	66
2016	66
2017	65
2018	57
2019	77
2020	82
2021	88
2022	46
2023	33
2024	64
2025	84
2026	62

All-Time Record Progression

2 new records

2 all-time records were set at Imnaviat Creek between 8 July 2023 and 11 August 2025. Each dot is a new record.

When Imnaviat Creek set new all-time records
Date	Kind	Detail
2023-07-08	Record daily precipitation	Record daily precipitation 63.5 mm (2.5 in)
2025-08-11	Record daily precipitation	Record daily precipitation 88.9 mm (3.5 in)

Wettest Day of Each Month

Aug: 88.9 mm (3.5 in)

The wettest day on record for each calendar month at Imnaviat Creek. The most was 88.9 mm (3.5 in) on 11 August 2025.

Record daily precipitation for each month at Imnaviat Creek
Month	Record daily precipitation (mm)	Date
Jan	10.2 mm (0.4 in)	3 January 2017
Feb	20.3 mm (0.8 in)	27 February 2011
Mar	22.9 mm (0.9 in)	6 March 1983
Apr	15.2 mm (0.6 in)	25 April 2003
May	27.9 mm (1.1 in)	17 May 2018
Jun	53.3 mm (2.1 in)	25 June 2008
Jul	63.5 mm (2.5 in)	8 July 2023
Aug	88.9 mm (3.5 in)	11 August 2025
Sep	33.0 mm (1.3 in)	3 September 1996
Oct	10.2 mm (0.4 in)	1 October 1995
Nov	12.7 mm (0.5 in)	24 November 1992
Dec	15.2 mm (0.6 in)	16 December 2008

Period of Record Coverage

2006 to 2026

21 years of record at Imnaviat Creek, 2006 to 2026. 3 years have data for under 90 percent of days and are left out of rankings: 2006, 2023, 2026.

Days with data per year at Imnaviat Creek
Year	Days with data	Share of year	Complete
2006	86	24%	No
2007	352	96%	Yes
2008	360	98%	Yes
2009	362	99%	Yes
2010	346	95%	Yes
2011	342	94%	Yes
2012	366	100%	Yes
2013	365	100%	Yes
2014	364	100%	Yes
2015	360	99%	Yes
2016	366	100%	Yes
2017	365	100%	Yes
2018	365	100%	Yes
2019	364	100%	Yes
2020	366	100%	Yes
2021	364	100%	Yes
2022	364	100%	Yes
2023	271	74%	No
2024	366	100%	Yes
2025	363	99%	Yes
2026	285	78%	No

Latest Records

Latest records at Imnaviat Creek
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
28 September 2026	Imnaviat Creek, US	daily rain (Tie, Provisional)	2.5 mm (0.10 in)	tie	17 years	2 of 100 (Routine)
19 September 2026	Imnaviat Creek, US	daily rain (Provisional)	5.1 mm (0.20 in)	2.6 mm (0.10 in)	27 years	19 of 100 (Routine)
11 September 2026	Imnaviat Creek, US	daily rain (Tie, Provisional)	5.1 mm (0.20 in)	tie	29 years	3 of 100 (Routine)
28 August 2026	Imnaviat Creek, US	daily rain (Tie, Provisional)	5.1 mm (0.20 in)	tie	39 years	3 of 100 (Routine)
25 August 2026	Imnaviat Creek, US	daily rain (Provisional)	20.3 mm (0.8 in)	2.5 mm (0.10 in)	29 years	15 of 100 (Routine)
15 July 2026	Imnaviat Creek, US	daily rain (Tie)	15.2 mm (0.6 in)	tie	15 years	2 of 100 (Routine)
15 June 2026	Imnaviat Creek, US	daily rain	12.7 mm (0.5 in)	2.5 mm (0.10 in)	28 years	16 of 100 (Routine)
5 May 2026	Imnaviat Creek, US	daily rain (Tie)	2.5 mm (0.10 in)	tie	33 years	3 of 100 (Routine)
20 April 2026	Imnaviat Creek, US	daily rain (Tie)	2.5 mm (0.10 in)	tie	5 years	1 of 100 (Routine)
10 April 2026	Imnaviat Creek, US	daily rain (Tie)	2.5 mm (0.10 in)	tie	17 years	2 of 100 (Routine)
21 March 2026	Imnaviat Creek, US	daily rain (Tie)	2.5 mm (0.10 in)	tie	24 years	2 of 100 (Routine)
18 March 2026	Imnaviat Creek, US	daily rain (Tie)	2.5 mm (0.10 in)	tie	8 years	1 of 100 (Routine)
2 March 2026	Imnaviat Creek, US	daily rain (Tie)	2.5 mm (0.10 in)	tie	44 years	4 of 100 (Routine)
21 February 2026	Imnaviat Creek, US	daily rain (Tie)	5.1 mm (0.20 in)	tie	4 years	1 of 100 (Routine)
11 February 2026	Imnaviat Creek, US	daily rain (Tie)	2.5 mm (0.10 in)	tie	36 years	3 of 100 (Routine)
28 January 2026	Imnaviat Creek, US	daily rain (Tie)	5.1 mm (0.20 in)	tie	30 years	3 of 100 (Routine)
16 January 2026	Imnaviat Creek, US	monthly rain (Tie)	10.2 mm (0.4 in)	tie	9 years	4 of 100 (Routine)
11 January 2026	Imnaviat Creek, US	daily rain (Tie)	2.5 mm (0.10 in)	tie	23 years	2 of 100 (Routine)
28 December 2025	Imnaviat Creek, US	daily rain (Tie)	2.5 mm (0.10 in)	tie	32 years	3 of 100 (Routine)
18 December 2025	Imnaviat Creek, US	daily rain (Tie)	2.5 mm (0.10 in)	tie	30 years	3 of 100 (Routine)

Climate Trend

17 complete years, 2007 to 2025

One stripe for each of 17 complete years at Imnaviat Creek, 2007 to 2025. Blue stripes are years cooler than the station's own mean of -5.9 C (21.4 F); red stripes are warmer. The coolest year was 2021, at -8.1 C (17.4 F), and the warmest was 2007, at -3.9 C (24.9 F). The strongest colour marks a difference of 2.3 C (4.1 F).

Annual mean temperature at Imnaviat Creek as warming stripes, 2007 to 2025
Year	Annual mean temperature	Difference from the station mean
2007	-3.9 C	+1.99 C
2008	-6.7 C	-0.81 C
2009	-5.5 C	+0.40 C
2010	-4.8 C	+1.15 C
2012	-7.9 C	-2.04 C
2013	-7.3 C	-1.41 C
2014	-5.4 C	+0.47 C
2015	-5.7 C	+0.19 C
2016	-4.6 C	+1.32 C
2017	-5.1 C	+0.78 C
2018	-5.2 C	+0.73 C
2019	-4.3 C	+1.62 C
2020	-6.6 C	-0.72 C
2021	-8.1 C	-2.22 C
2022	-6.4 C	-0.46 C
2024	-6.9 C	-0.96 C
2025	-6.0 C	-0.06 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

1981 to 2026

Yearly extremes at Imnaviat Creek: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Hottest day (TXx)	25.6 C (78.1 F)	2025	23.2 C (73.8 F)	21
Coldest night (TNn)	-43.2 C (-45.8 F)	2013	-37.5 C (-35.5 F)	21
Wettest day (Rx1day)	88.9 mm (3.5 in)	2025	22.9 mm (0.9 in)	46
Wettest five days (Rx5day)	101.6 mm (4.0 in)	2000	41.9 mm (1.6 in)	46
Longest dry spell (CDD)	56 days	1990	34 days	46

Hottest day (TXx)

The hottest day of the year at Imnaviat Creek, 1981 to 2026. The record is 25.6 C (78.1 F) in 2025, marked on the chart; the median year is 23.2 C (73.8 F).

Hottest day (TXx) at Imnaviat Creek by year
Year	Hottest day (TXx)
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	9.9 C (49.8 F)
2007	25.4 C (77.7 F)
2008	21.6 C (70.9 F)
2009	24.4 C (75.9 F)
2010	23.3 C (73.9 F)
2011	23.2 C (73.8 F)
2012	22.1 C (71.8 F)
2013	24.8 C (76.6 F)
2014	20.9 C (69.6 F)
2015	24.8 C (76.6 F)
2016	24.8 C (76.6 F)
2017	23.6 C (74.5 F)
2018	21.2 C (70.2 F)
2019	22.7 C (72.9 F)
2020	18.9 C (66.0 F)
2021	22.8 C (73.0 F)
2022	23.3 C (73.9 F)
2023	22.8 C (73.0 F)
2024	24.4 C (75.9 F)
2025	25.6 C (78.1 F)
2026	21.1 C (70.0 F)

Coldest night (TNn)

The coldest night of the year at Imnaviat Creek, 1981 to 2026. The record is -43.2 C (-45.8 F) in 2013, marked on the chart; the median year is -37.5 C (-35.5 F).

Coldest night (TNn) at Imnaviat Creek by year
Year	Coldest night (TNn)
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	-28.8 C (-19.8 F)
2007	-37.6 C (-35.7 F)
2008	-36.9 C (-34.4 F)
2009	-37.5 C (-35.5 F)
2010	-35.7 C (-32.3 F)
2011	-36.8 C (-34.2 F)
2012	-41.2 C (-42.2 F)
2013	-43.2 C (-45.8 F)
2014	-40.2 C (-40.4 F)
2015	-36.7 C (-34.1 F)
2016	-34.3 C (-29.7 F)
2017	-37.3 C (-35.1 F)
2018	-35.1 C (-31.2 F)
2019	-40.3 C (-40.5 F)
2020	-41.1 C (-42.0 F)
2021	-39.4 C (-38.9 F)
2022	-40.0 C (-40.0 F)
2023	-35.0 C (-31.0 F)
2024	-37.8 C (-36.0 F)
2025	-35.6 C (-32.1 F)
2026	-40.6 C (-41.1 F)

Wettest day (Rx1day)

The wettest day of the year at Imnaviat Creek, 1981 to 2026. The record is 88.9 mm (3.5 in) in 2025, marked on the chart; the median year is 22.9 mm (0.9 in).

Wettest day (Rx1day) at Imnaviat Creek by year
Year	Wettest day (Rx1day)
1981	10.2 mm (0.4 in)
1982	12.7 mm (0.5 in)
1983	22.9 mm (0.9 in)
1984	33.0 mm (1.3 in)
1985	25.4 mm (1.0 in)
1986	15.2 mm (0.6 in)
1987	12.7 mm (0.5 in)
1988	15.2 mm (0.6 in)
1989	17.8 mm (0.7 in)
1990	15.2 mm (0.6 in)
1991	35.6 mm (1.4 in)
1992	38.1 mm (1.5 in)
1993	40.6 mm (1.6 in)
1994	35.6 mm (1.4 in)
1995	10.2 mm (0.4 in)
1996	33.0 mm (1.3 in)
1997	30.5 mm (1.2 in)
1998	22.9 mm (0.9 in)
1999	58.4 mm (2.3 in)
2000	55.9 mm (2.2 in)
2001	22.9 mm (0.9 in)
2002	45.7 mm (1.8 in)
2003	30.5 mm (1.2 in)
2004	7.6 mm (0.30 in)
2005	10.2 mm (0.4 in)
2006	10.2 mm (0.4 in)
2007	7.6 mm (0.30 in)
2008	53.3 mm (2.1 in)
2009	35.6 mm (1.4 in)
2010	20.3 mm (0.8 in)
2011	20.3 mm (0.8 in)
2012	17.8 mm (0.7 in)
2013	15.2 mm (0.6 in)
2014	22.9 mm (0.9 in)
2015	20.3 mm (0.8 in)
2016	7.6 mm (0.30 in)
2017	25.4 mm (1.0 in)
2018	27.9 mm (1.1 in)
2019	43.2 mm (1.7 in)
2020	17.8 mm (0.7 in)
2021	22.9 mm (0.9 in)
2022	27.9 mm (1.1 in)
2023	63.5 mm (2.5 in)
2024	33.0 mm (1.3 in)
2025	88.9 mm (3.5 in)
2026	20.3 mm (0.8 in)

Wettest five days (Rx5day)

The wettest five days of the year at Imnaviat Creek, 1981 to 2026. The record is 101.6 mm (4.0 in) in 2000, marked on the chart; the median year is 41.9 mm (1.6 in).

Wettest five days (Rx5day) at Imnaviat Creek by year
Year	Wettest five days (Rx5day)
1981	20.2 mm (0.8 in)
1982	25.3 mm (1.0 in)
1983	40.6 mm (1.6 in)
1984	71.1 mm (2.8 in)
1985	73.7 mm (2.9 in)
1986	43.1 mm (1.7 in)
1987	48.4 mm (1.9 in)
1988	30.5 mm (1.2 in)
1989	30.5 mm (1.2 in)
1990	35.5 mm (1.4 in)
1991	66.1 mm (2.6 in)
1992	63.4 mm (2.5 in)
1993	66.0 mm (2.6 in)
1994	38.1 mm (1.5 in)
1995	20.4 mm (0.8 in)
1996	45.7 mm (1.8 in)
1997	43.2 mm (1.7 in)
1998	30.5 mm (1.2 in)
1999	88.9 mm (3.5 in)
2000	101.6 mm (4.0 in)
2001	35.6 mm (1.4 in)
2002	81.2 mm (3.2 in)
2003	45.8 mm (1.8 in)
2004	10.1 mm (0.4 in)
2005	25.5 mm (1.0 in)
2006	25.4 mm (1.0 in)
2007	22.8 mm (0.9 in)
2008	53.3 mm (2.1 in)
2009	48.3 mm (1.9 in)
2010	33.0 mm (1.3 in)
2011	30.5 mm (1.2 in)
2012	40.7 mm (1.6 in)
2013	45.7 mm (1.8 in)
2014	35.6 mm (1.4 in)
2015	50.9 mm (2.0 in)
2016	7.6 mm (0.30 in)
2017	50.8 mm (2.0 in)
2018	60.9 mm (2.4 in)
2019	71.1 mm (2.8 in)
2020	25.4 mm (1.0 in)
2021	40.6 mm (1.6 in)
2022	38.2 mm (1.5 in)
2023	76.2 mm (3.0 in)
2024	50.8 mm (2.0 in)
2025	101.6 mm (4.0 in)
2026	40.6 mm (1.6 in)

Longest dry spell (CDD)

The longest dry spell of the year at Imnaviat Creek, 1981 to 2026. The record is 56 days in 1990, marked on the chart; the median year is 34 days.

Longest dry spell (CDD) at Imnaviat Creek by year
Year	Longest dry spell (CDD)
1981	14 days
1982	36 days
1983	49 days
1984	46 days
1985	34 days
1986	42 days
1987	22 days
1988	50 days
1989	42 days
1990	56 days
1991	23 days
1992	37 days
1993	44 days
1994	43 days
1995	26 days
1996	32 days
1997	30 days
1998	48 days
1999	43 days
2000	40 days
2001	34 days
2002	42 days
2003	42 days
2004	35 days
2005	24 days
2006	49 days
2007	37 days
2008	26 days
2009	33 days
2010	23 days
2011	32 days
2012	45 days
2013	18 days
2014	39 days
2015	33 days
2016	31 days
2017	42 days
2018	26 days
2019	24 days
2020	27 days
2021	41 days
2022	31 days
2023	23 days
2024	22 days
2025	31 days
2026	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.

Rainfall Return Levels

36 years, 1984 to 2025

A day with at least 26.3 mm (1.0 in) of rain is expected about once in 2 years. A day with at least 95.5 mm (3.8 in) of rain is expected about once in 100 years.

Rainfall return levels at Imnaviat Creek: the daily rain expected about once in a given number of years
Expected about once in	A day with at least	Note
2 years	26.3 mm (1.0 in)
5 years	41.2 mm (1.6 in)
10 years	52.4 mm (2.1 in)
25 years	68.3 mm (2.7 in)
50 years	81.3 mm (3.2 in)	Longer than the 36 years of record
100 years	95.5 mm (3.8 in)	Longer than the 36 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, 36 years of values from 1984 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: 88.9 mm (3.5 in) in 2025; 63.5 mm (2.5 in) in 2023; 58.4 mm (2.3 in) in 1999.

Download the Data

Data for Imnaviat Creek standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Imnaviat Creek 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 2026-10-16 (16 October 2026). Records are computed by this site and are not official.

Data as of 2026-10-16. Last revised 16 October 2026 (2026-10-16).