Seldovia AP Weather Records (USW00025516)

Record envelope, standing records and threshold days for Seldovia AP (USW00025516), Alaska, United States, with 30 years of record.

Key Facts for Seldovia AP

Seldovia AP (USW00025516) is a weather station in Alaska, United States at 59.45 latitude and -151.71 longitude, 9 m (28 ft) above sea level.
The station reports from 1997 to 2026, 30 years of record.
1,464 records set at Seldovia AP 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, 59.45 latitude, -151.71 longitude.
Elevation: 9 m (28 ft).
Period of record: 1997 to 2026, 30 years.
Eligible elements: none yet.

Daily Record Envelope and 2026

24 days at or beyond a record

The band shows the record high and record low for each calendar day at Seldovia AP. The lines show the 2026 daily maximum and minimum. 24 days in 2026 matched or passed a record. Temperatures are in degrees Celsius.

Daily record high and record low at Seldovia AP, with 2026 drawn through them
Month	Highest record high	Lowest record low	2026 highest maximum	2026 lowest minimum
Jan	15.0 C (59.0 F)	-21.6 C (-6.9 F)	7.2 C (45.0 F)	-12.7 C (9.1 F)
Feb	12.2 C (54.0 F)	-20.0 C (-4.0 F)	6.7 C (44.1 F)	-11.0 C (12.2 F)
Mar	16.7 C (62.1 F)	-17.7 C (0.1 F)	8.3 C (46.9 F)	-8.8 C (16.2 F)
Apr	18.9 C (66.0 F)	-14.4 C (6.1 F)	12.2 C (54.0 F)	-2.7 C (27.1 F)
May	21.7 C (71.1 F)	-4.4 C (24.1 F)	16.7 C (62.1 F)	0.0 C (32.0 F)
Jun	25.0 C (77.0 F)	1.1 C (34.0 F)	20.0 C (68.0 F)	2.8 C (37.0 F)
Jul	27.8 C (82.0 F)	2.8 C (37.0 F)	23.9 C (75.0 F)	6.7 C (44.1 F)
Aug	27.8 C (82.0 F)	0.6 C (33.1 F)	20.6 C (69.1 F)	5.6 C (42.1 F)
Sep	19.4 C (66.9 F)	-2.7 C (27.1 F)	19.4 C (66.9 F)	1.1 C (34.0 F)
Oct	20.6 C (69.1 F)	-8.8 C (16.2 F)	15.6 C (60.1 F)	-3.9 C (25.0 F)
Nov	15.0 C (59.0 F)	-17.1 C (1.2 F)	5.0 C (41.0 F)	-7.2 C (19.0 F)
Dec	15.0 C (59.0 F)	-17.2 C (1.0 F)	6.7 C (44.1 F)	-13.9 C (7.0 F)

Which Years Hold Standing Records

1,464 standing records

1,464 records at Seldovia AP still stand. 2019 holds the most, with 99.

Standing records at Seldovia AP by the year they were set
Year set	Standing records
1997	36
1998	57
1999	83
2000	52
2001	57
2002	68
2003	84
2004	70
2005	49
2006	46
2007	66
2008	56
2009	44
2010	21
2011	29
2012	53
2013	58
2014	57
2015	49
2016	81
2017	22
2018	19
2019	99
2020	31
2021	53
2022	27
2023	23
2024	39
2025	35

Wettest Day of Each Month

Oct: 80.5 mm (3.2 in)

The wettest day on record for each calendar month at Seldovia AP. The most was 80.5 mm (3.2 in) on 30 October 2021.

Record daily precipitation for each month at Seldovia AP
Month	Record daily precipitation (mm)	Date
Jan	55.4 mm (2.2 in)	4 January 2016
Feb	53.3 mm (2.1 in)	4 February 2003
Mar	58.2 mm (2.3 in)	10 March 2005
Apr	39.1 mm (1.5 in)	24 April 2018
May	31.0 mm (1.2 in)	4 May 2018
Jun	35.6 mm (1.4 in)	3 June 2025
Jul	39.6 mm (1.6 in)	19 July 2020
Aug	66.5 mm (2.6 in)	6 August 2024
Sep	49.5 mm (1.9 in)	20 September 2016
Oct	80.5 mm (3.2 in)	30 October 2021
Nov	69.1 mm (2.7 in)	5 November 2002
Dec	79.5 mm (3.1 in)	9 December 2019

Period of Record Coverage

1997 to 2025

29 years of record at Seldovia AP, 1997 to 2025. 1 years have data for under 90 percent of days and are left out of rankings: 1997.

Days with data per year at Seldovia AP
Year	Days with data	Share of year	Complete
1997	210	58%	No
1998	357	98%	Yes
1999	356	98%	Yes
2000	366	100%	Yes
2001	364	100%	Yes
2002	364	100%	Yes
2003	362	99%	Yes
2004	356	97%	Yes
2005	361	99%	Yes
2006	364	100%	Yes
2007	361	99%	Yes
2008	366	100%	Yes
2009	362	99%	Yes
2010	360	99%	Yes
2011	360	99%	Yes
2012	360	98%	Yes
2013	361	99%	Yes
2014	357	98%	Yes
2015	357	98%	Yes
2016	354	97%	Yes
2017	363	99%	Yes
2018	362	99%	Yes
2019	360	99%	Yes
2020	356	97%	Yes
2021	359	98%	Yes
2022	365	100%	Yes
2023	365	100%	Yes
2024	358	98%	Yes
2025	359	98%	Yes

Latest Records

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

Climate Trend

28 complete years, 1998 to 2025

One stripe for each of 28 complete years at Seldovia AP, 1998 to 2025. Blue stripes are years cooler than the station's own mean of 4.4 C (39.8 F); red stripes are warmer. The coolest year was 1999, at 2.3 C (36.1 F), and the warmest was 2019, at 6.6 C (43.9 F). The strongest colour marks a difference of 2.3 C (4.1 F).

Annual mean temperature at Seldovia AP as warming stripes, 1998 to 2025
Year	Annual mean temperature	Difference from the station mean
1998	3.8 C	-0.57 C
1999	2.3 C	-2.07 C
2000	4.2 C	-0.15 C
2001	4.2 C	-0.19 C
2002	4.8 C	+0.47 C
2003	5.1 C	+0.69 C
2004	5.0 C	+0.63 C
2005	4.7 C	+0.36 C
2006	3.3 C	-1.04 C
2007	3.5 C	-0.88 C
2008	2.6 C	-1.72 C
2009	3.4 C	-0.92 C
2010	3.8 C	-0.55 C
2011	3.5 C	-0.84 C
2012	2.8 C	-1.53 C
2013	4.4 C	+0.02 C
2014	5.1 C	+0.74 C
2015	5.5 C	+1.10 C
2016	6.4 C	+2.05 C
2017	4.0 C	-0.32 C
2018	5.1 C	+0.74 C
2019	6.6 C	+2.23 C
2020	4.4 C	+0.01 C
2021	3.6 C	-0.76 C
2022	4.9 C	+0.58 C
2023	4.7 C	+0.38 C
2024	5.2 C	+0.79 C
2025	5.0 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

1997 to 2026

Yearly extremes at Seldovia AP: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Hottest day (TXx)	27.8 C (82.0 F)	2004	23.3 C (73.9 F)	30
Coldest night (TNn)	-21.6 C (-6.9 F)	2009	-16.7 C (1.9 F)	30
Wettest day (Rx1day)	80.5 mm (3.2 in)	2021	50.8 mm (2.0 in)	29
Wettest five days (Rx5day)	166.6 mm (6.6 in)	2019	101.0 mm (4.0 in)	29
Longest dry spell (CDD)	71 days	1999	22 days	29

Hottest day (TXx)

The hottest day of the year at Seldovia AP, 1997 to 2026. The record is 27.8 C (82.0 F) in 2004, marked on the chart; the median year is 23.3 C (73.9 F).

Hottest day (TXx) at Seldovia AP by year
Year	Hottest day (TXx)
1997	23.9 C (75.0 F)
1998	22.8 C (73.0 F)
1999	21.7 C (71.1 F)
2000	23.9 C (75.0 F)
2001	21.7 C (71.1 F)
2002	22.2 C (72.0 F)
2003	23.3 C (73.9 F)
2004	27.8 C (82.0 F)
2005	23.9 C (75.0 F)
2006	20.6 C (69.1 F)
2007	23.3 C (73.9 F)
2008	21.1 C (70.0 F)
2009	23.3 C (73.9 F)
2010	20.0 C (68.0 F)
2011	20.0 C (68.0 F)
2012	21.1 C (70.0 F)
2013	25.0 C (77.0 F)
2014	21.7 C (71.1 F)
2015	25.0 C (77.0 F)
2016	25.6 C (78.1 F)
2017	22.2 C (72.0 F)
2018	23.3 C (73.9 F)
2019	26.7 C (80.1 F)
2020	25.0 C (77.0 F)
2021	22.8 C (73.0 F)
2022	23.9 C (75.0 F)
2023	22.2 C (72.0 F)
2024	27.8 C (82.0 F)
2025	23.9 C (75.0 F)
2026	23.3 C (73.9 F)

Coldest night (TNn)

The coldest night of the year at Seldovia AP, 1997 to 2026. The record is -21.6 C (-6.9 F) in 2009, marked on the chart; the median year is -16.7 C (1.9 F).

Coldest night (TNn) at Seldovia AP by year
Year	Coldest night (TNn)
1997	-16.7 C (1.9 F)
1998	-18.9 C (-2.0 F)
1999	-21.1 C (-6.0 F)
2000	-17.8 C (0.0 F)
2001	-17.2 C (1.0 F)
2002	-16.7 C (1.9 F)
2003	-15.6 C (3.9 F)
2004	-18.3 C (-0.9 F)
2005	-15.0 C (5.0 F)
2006	-17.7 C (0.1 F)
2007	-19.9 C (-3.8 F)
2008	-17.7 C (0.1 F)
2009	-21.6 C (-6.9 F)
2010	-17.7 C (0.1 F)
2011	-16.0 C (3.2 F)
2012	-19.3 C (-2.7 F)
2013	-16.6 C (2.1 F)
2014	-15.5 C (4.1 F)
2015	-12.1 C (10.2 F)
2016	-12.7 C (9.1 F)
2017	-16.6 C (2.1 F)
2018	-12.1 C (10.2 F)
2019	-12.1 C (10.2 F)
2020	-17.7 C (0.1 F)
2021	-17.1 C (1.2 F)
2022	-17.7 C (0.1 F)
2023	-14.9 C (5.2 F)
2024	-16.6 C (2.1 F)
2025	-13.9 C (7.0 F)
2026	-16.7 C (1.9 F)

Wettest day (Rx1day)

The wettest day of the year at Seldovia AP, 1997 to 2026. The record is 80.5 mm (3.2 in) in 2021, marked on the chart; the median year is 50.8 mm (2.0 in).

Wettest day (Rx1day) at Seldovia AP by year
Year	Wettest day (Rx1day)
1997	n/a
1998	45.0 mm (1.8 in)
1999	58.7 mm (2.3 in)
2000	47.5 mm (1.9 in)
2001	53.8 mm (2.1 in)
2002	69.1 mm (2.7 in)
2003	53.3 mm (2.1 in)
2004	40.9 mm (1.6 in)
2005	58.2 mm (2.3 in)
2006	50.0 mm (2.0 in)
2007	57.1 mm (2.2 in)
2008	32.0 mm (1.3 in)
2009	49.5 mm (1.9 in)
2010	47.0 mm (1.9 in)
2011	56.4 mm (2.2 in)
2012	41.7 mm (1.6 in)
2013	34.3 mm (1.4 in)
2014	55.1 mm (2.2 in)
2015	50.8 mm (2.0 in)
2016	55.4 mm (2.2 in)
2017	52.8 mm (2.1 in)
2018	53.8 mm (2.1 in)
2019	79.5 mm (3.1 in)
2020	39.6 mm (1.6 in)
2021	80.5 mm (3.2 in)
2022	39.6 mm (1.6 in)
2023	25.1 mm (1.0 in)
2024	66.5 mm (2.6 in)
2025	48.8 mm (1.9 in)
2026	36.1 mm (1.4 in)

Wettest five days (Rx5day)

The wettest five days of the year at Seldovia AP, 1997 to 2026. The record is 166.6 mm (6.6 in) in 2019, marked on the chart; the median year is 101.0 mm (4.0 in).

Wettest five days (Rx5day) at Seldovia AP by year
Year	Wettest five days (Rx5day)
1997	n/a
1998	68.3 mm (2.7 in)
1999	103.9 mm (4.1 in)
2000	106.4 mm (4.2 in)
2001	130.5 mm (5.1 in)
2002	159.8 mm (6.3 in)
2003	96.3 mm (3.8 in)
2004	78.5 mm (3.1 in)
2005	101.7 mm (4.0 in)
2006	65.1 mm (2.6 in)
2007	77.9 mm (3.1 in)
2008	70.1 mm (2.8 in)
2009	93.0 mm (3.7 in)
2010	136.4 mm (5.4 in)
2011	105.5 mm (4.2 in)
2012	125.7 mm (4.9 in)
2013	92.4 mm (3.6 in)
2014	127.9 mm (5.0 in)
2015	101.0 mm (4.0 in)
2016	120.9 mm (4.8 in)
2017	120.2 mm (4.7 in)
2018	82.7 mm (3.3 in)
2019	166.6 mm (6.6 in)
2020	85.8 mm (3.4 in)
2021	112.6 mm (4.4 in)
2022	66.8 mm (2.6 in)
2023	66.4 mm (2.6 in)
2024	116.3 mm (4.6 in)
2025	101.0 mm (4.0 in)
2026	61.1 mm (2.4 in)

Longest dry spell (CDD)

The longest dry spell of the year at Seldovia AP, 1997 to 2026. The record is 71 days in 1999, marked on the chart; the median year is 22 days.

Longest dry spell (CDD) at Seldovia AP by year
Year	Longest dry spell (CDD)
1997	n/a
1998	62 days
1999	71 days
2000	22 days
2001	37 days
2002	27 days
2003	18 days
2004	27 days
2005	17 days
2006	19 days
2007	44 days
2008	24 days
2009	38 days
2010	18 days
2011	11 days
2012	22 days
2013	25 days
2014	20 days
2015	15 days
2016	14 days
2017	39 days
2018	18 days
2019	23 days
2020	33 days
2021	16 days
2022	22 days
2023	33 days
2024	17 days
2025	26 days
2026	19 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.

Frost Dates and Growing Season

28 years with a frost

Across 28 years with a frost, the median last spring frost at Seldovia AP falls on 15 May and the median first autumn frost on 29 September, which leaves a median of 141 days between them.

Fitted over all years, the growing season changes by +7.9 days per decade at this station.

Frost dates and growing season at Seldovia AP
Measure	Median, all years	Earliest period	Recent period (1998 to 2025)	Recent against earliest	Fitted trend
Last spring frost	15 May	n/a	15 May	n/a	-3.5 days per decade
First autumn frost	29 September	n/a	29 September	n/a	+4.4 days per decade
Growing days	141 days	n/a	141 days	n/a	+7.9 days per decade

A frost day is a day with a daily minimum at or below 0 C (32 F). The last spring frost and the first autumn frost are the last and first such days of the cold season, and growing days are the days between them. A negative trend for the last spring frost means it comes earlier.

Download the Data

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