College 5 NW Weather Records (USC00502112)

Record envelope, standing records and threshold days for College 5 NW (USC00502112), Alaska, United States, with 38 years of record.

Key Facts for College 5 NW

College 5 NW (USC00502112) is a weather station in Alaska, United States at 64.92 latitude and -147.88 longitude, 298 m (978 ft) above sea level.
The station reports from 1976 to 2013, 38 years of record.
1,464 records set at College 5 NW still stand.
Records are tracked for tmax, tmin, prcp, snow, snwd: an element needs 30 years of data to be eligible.
College 5 NW set a daily record precipitation of 6.1 mm (0.24 in) on 28 November 2013.

About the Station

Location: Alaska, United States, 64.92 latitude, -147.88 longitude.
Elevation: 298 m (978 ft).
Period of record: 1976 to 2013, 38 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 College 5 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 College 5 NW, with 2026 drawn through them
Month	Highest record high	Lowest record low	2026 highest maximum	2026 lowest minimum
Jan	10.6 C (51.1 F)	-48.3 C (-54.9 F)	n/a	n/a
Feb	12.2 C (54.0 F)	-44.4 C (-47.9 F)	n/a	n/a
Mar	13.3 C (55.9 F)	-35.0 C (-31.0 F)	n/a	n/a
Apr	22.2 C (72.0 F)	-27.2 C (-17.0 F)	n/a	n/a
May	29.4 C (84.9 F)	-12.8 C (9.0 F)	n/a	n/a
Jun	33.9 C (93.0 F)	-2.8 C (27.0 F)	n/a	n/a
Jul	32.8 C (91.0 F)	2.2 C (36.0 F)	n/a	n/a
Aug	32.2 C (90.0 F)	-3.3 C (26.1 F)	n/a	n/a
Sep	25.0 C (77.0 F)	-13.9 C (7.0 F)	n/a	n/a
Oct	21.7 C (71.1 F)	-27.8 C (-18.0 F)	n/a	n/a
Nov	10.6 C (51.1 F)	-40.0 C (-40.0 F)	n/a	n/a
Dec	8.3 C (46.9 F)	-41.7 C (-43.1 F)	n/a	n/a

Which Years Hold Standing Records

1,464 standing records

1,464 records at College 5 NW still stand. 1992 holds the most, with 83.

Standing records at College 5 NW by the year they were set
Year set	Standing records
1976	25
1977	51
1978	41
1979	40
1980	58
1981	63
1982	38
1983	36
1984	28
1985	55
1986	54
1987	25
1988	22
1989	50
1990	47
1991	24
1992	83
1993	26
1994	52
1995	57
1996	32
1997	39
1998	20
1999	41
2000	25
2001	26
2002	66
2003	44
2004	40
2005	27
2006	17
2007	27
2008	21
2009	31
2010	21
2011	27
2012	23
2013	62

All-Time Record Progression

1 new records

1 all-time records were set at College 5 NW between 19 December 2012 and 19 December 2012. Each dot is a new record.

Wettest Day of Each Month

Jun: 58.7 mm (2.3 in)

The wettest day on record for each calendar month at College 5 NW. The most was 58.7 mm (2.3 in) on 16 June 1988.

Record daily precipitation for each month at College 5 NW
Month	Record daily precipitation (mm)	Date
Jan	23.1 mm (0.9 in)	14 January 1993
Feb	15.2 mm (0.6 in)	2 February 1980
Mar	21.6 mm (0.9 in)	25 March 1991
Apr	16.5 mm (0.6 in)	26 April 2002
May	21.1 mm (0.8 in)	18 May 2005
Jun	58.7 mm (2.3 in)	16 June 1988
Jul	41.7 mm (1.6 in)	20 July 1986
Aug	30.7 mm (1.2 in)	26 August 1990
Sep	26.4 mm (1.0 in)	6 September 1990
Oct	24.1 mm (0.9 in)	11 October 1986
Nov	17.3 mm (0.7 in)	14 November 2013
Dec	27.4 mm (1.1 in)	19 December 2012

Period of Record Coverage

1976 to 2013

38 years of record at College 5 NW, 1976 to 2013. 5 years have data for under 90 percent of days and are left out of rankings: 1976, 2006, 2007, 2008, 2013.

Days with data per year at College 5 NW
Year	Days with data	Share of year	Complete
1976	146	40%	No
1977	359	98%	Yes
1978	362	99%	Yes
1979	348	95%	Yes
1980	365	100%	Yes
1981	362	99%	Yes
1982	362	99%	Yes
1983	340	93%	Yes
1984	362	99%	Yes
1985	364	100%	Yes
1986	362	99%	Yes
1987	361	99%	Yes
1988	365	100%	Yes
1989	361	99%	Yes
1990	360	99%	Yes
1991	361	99%	Yes
1992	360	98%	Yes
1993	361	99%	Yes
1994	362	99%	Yes
1995	365	100%	Yes
1996	365	100%	Yes
1997	359	98%	Yes
1998	361	99%	Yes
1999	358	98%	Yes
2000	364	99%	Yes
2001	363	99%	Yes
2002	363	99%	Yes
2003	351	96%	Yes
2004	366	100%	Yes
2005	337	92%	Yes
2006	289	79%	No
2007	309	85%	No
2008	327	89%	No
2009	347	95%	Yes
2010	331	91%	Yes
2011	365	100%	Yes
2012	353	96%	Yes
2013	309	85%	No

Latest Records

Latest records at College 5 NW
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
28 November 2013	College 5 NW, US	daily rain	6.1 mm (0.24 in)	3.1 mm (0.12 in)	32 years	20 of 100 (Routine)
28 November 2013	College 5 NW, US	daily snowfall	7.1 cm (2.8 in)	0.7 cm (0.3 in)	16 years	9 of 100 (Routine)
21 November 2013	College 5 NW, US	daily low max	-25.6 C (-14.1 F)	1.7 C (3.1 F)	2 years	5 of 100 (Routine)
14 November 2013	College 5 NW, US	monthly rain	17.3 mm (0.7 in)	0.3 mm (0.01 in)	31 years	20 of 100 (Routine)
10 November 2013	College 5 NW, US	daily rain	13.2 mm (0.5 in)	10.2 mm (0.4 in)	19 years	20 of 100 (Routine)
10 November 2013	College 5 NW, US	daily snowfall	15.5 cm (6.1 in)	8.4 cm (3.3 in)	10 years	32 of 100 (Routine)
29 October 2013	College 5 NW, US	daily high max	12.2 C (54.0 F)	5.5 C (9.9 F)	11 years	14 of 100 (Routine)
29 October 2013	College 5 NW, US	daily high min	0.6 C (33.1 F)	3.9 C (7.0 F)	11 years	12 of 100 (Routine)
28 October 2013	College 5 NW, US	daily high min	2.8 C (37.0 F)	5.6 C (10.1 F)	11 years	14 of 100 (Routine)
28 October 2013	College 5 NW, US	daily high max	6.7 C (44.1 F)	2.8 C (5.0 F)	20 years	13 of 100 (Routine)
21 October 2013	College 5 NW, US	daily high min	0.0 C (32.0 F)	0.6 C (1.1 F)	32 years	12 of 100 (Routine)
20 October 2013	College 5 NW, US	daily high max	11.7 C (53.1 F)	2.8 C (5.0 F)	36 years	18 of 100 (Routine)
19 October 2013	College 5 NW, US	daily high max	11.7 C (53.1 F)	3.4 C (6.1 F)	32 years	17 of 100 (Routine)
19 October 2013	College 5 NW, US	daily high min	3.9 C (39.0 F)	2.8 C (5.0 F)	32 years	16 of 100 (Routine)
18 October 2013	College 5 NW, US	daily high min	5.6 C (42.1 F)	6.2 C (11.2 F)	36 years	23 of 100 (Routine)
18 October 2013	College 5 NW, US	daily high max	12.8 C (55.0 F)	2.8 C (5.0 F)	36 years	18 of 100 (Routine)
17 October 2013	College 5 NW, US	daily high min	6.1 C (43.0 F)	2.8 C (5.0 F)	36 years	18 of 100 (Routine)
17 October 2013	College 5 NW, US	daily high max	11.1 C (52.0 F)	3.3 C (5.9 F)	34 years	17 of 100 (Routine)
16 October 2013	College 5 NW, US	daily high min	2.8 C (37.0 F)	3.4 C (6.1 F)	32 years	17 of 100 (Routine)
13 October 2013	College 5 NW, US	daily high min	3.9 C (39.0 F)	2.8 C (5.0 F)	34 years	17 of 100 (Routine)

Climate Trend

28 complete years, 1977 to 2012

One stripe for each of 28 complete years at College 5 NW, 1977 to 2012. Blue stripes are years cooler than the station's own mean of -1.0 C (30.2 F); red stripes are warmer. The coolest year was 1999, at -3.1 C (26.3 F), and the warmest was 1981, at 1.1 C (34.1 F). The strongest colour marks a difference of 2.2 C (4.0 F).

Annual mean temperature at College 5 NW as warming stripes, 1977 to 2012
Year	Annual mean temperature	Difference from the station mean
1977	-0.4 C	+0.60 C
1978	1.1 C	+2.03 C
1980	-1.0 C	-0.02 C
1981	1.1 C	+2.12 C
1982	-1.9 C	-0.97 C
1984	-2.2 C	-1.26 C
1985	-1.3 C	-0.31 C
1986	-0.6 C	+0.33 C
1987	-0.1 C	+0.91 C
1988	-0.6 C	+0.36 C
1989	-1.9 C	-0.92 C
1990	-2.4 C	-1.39 C
1991	-1.2 C	-0.18 C
1992	-2.7 C	-1.70 C
1993	0.6 C	+1.55 C
1994	-1.6 C	-0.58 C
1995	-0.7 C	+0.23 C
1996	-3.0 C	-2.05 C
1997	-0.6 C	+0.33 C
1998	-0.3 C	+0.68 C
1999	-3.1 C	-2.16 C
2000	-0.6 C	+0.42 C
2001	-0.5 C	+0.47 C
2002	0.5 C	+1.51 C
2004	-0.1 C	+0.90 C
2005	0.1 C	+1.04 C
2011	-1.2 C	-0.20 C
2012	-2.7 C	-1.68 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

1976 to 2013

Yearly extremes at College 5 NW: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Hottest day (TXx)	33.9 C (93.0 F)	1983	29.7 C (85.5 F)	38
Coldest night (TNn)	-48.3 C (-54.9 F)	1989	-37.8 C (-36.0 F)	38
Wettest day (Rx1day)	58.7 mm (2.3 in)	1988	22.4 mm (0.9 in)	38
Wettest five days (Rx5day)	87.9 mm (3.5 in)	1990	38.3 mm (1.5 in)	38
Longest dry spell (CDD)	131 days	1987	42 days	38

Hottest day (TXx)

The hottest day of the year at College 5 NW, 1976 to 2013. The record is 33.9 C (93.0 F) in 1983, marked on the chart; the median year is 29.7 C (85.5 F).

Hottest day (TXx) at College 5 NW by year
Year	Hottest day (TXx)
1976	30.0 C (86.0 F)
1977	32.8 C (91.0 F)
1978	31.7 C (89.1 F)
1979	28.3 C (82.9 F)
1980	28.3 C (82.9 F)
1981	28.3 C (82.9 F)
1982	31.7 C (89.1 F)
1983	33.9 C (93.0 F)
1984	26.7 C (80.1 F)
1985	27.8 C (82.0 F)
1986	31.1 C (88.0 F)
1987	33.3 C (91.9 F)
1988	27.2 C (81.0 F)
1989	28.3 C (82.9 F)
1990	31.1 C (88.0 F)
1991	31.7 C (89.1 F)
1992	31.1 C (88.0 F)
1993	31.7 C (89.1 F)
1994	31.7 C (89.1 F)
1995	28.9 C (84.0 F)
1996	27.2 C (81.0 F)
1997	29.4 C (84.9 F)
1998	30.0 C (86.0 F)
1999	31.7 C (89.1 F)
2000	27.8 C (82.0 F)
2001	26.7 C (80.1 F)
2002	29.4 C (84.9 F)
2003	30.0 C (86.0 F)
2004	31.1 C (88.0 F)
2005	28.3 C (82.9 F)
2006	26.7 C (80.1 F)
2007	27.8 C (82.0 F)
2008	27.8 C (82.0 F)
2009	31.1 C (88.0 F)
2010	32.2 C (90.0 F)
2011	29.4 C (84.9 F)
2012	28.9 C (84.0 F)
2013	32.2 C (90.0 F)

Coldest night (TNn)

The coldest night of the year at College 5 NW, 1976 to 2013. The record is -48.3 C (-54.9 F) in 1989, marked on the chart; the median year is -37.8 C (-36.0 F).

Coldest night (TNn) at College 5 NW by year
Year	Coldest night (TNn)
1976	-30.0 C (-22.0 F)
1977	-37.8 C (-36.0 F)
1978	-30.6 C (-23.1 F)
1979	-36.1 C (-33.0 F)
1980	-41.7 C (-43.1 F)
1981	-35.6 C (-32.1 F)
1982	-36.7 C (-34.1 F)
1983	-45.0 C (-49.0 F)
1984	-41.1 C (-42.0 F)
1985	-37.2 C (-35.0 F)
1986	-33.3 C (-27.9 F)
1987	-32.8 C (-27.0 F)
1988	-32.8 C (-27.0 F)
1989	-48.3 C (-54.9 F)
1990	-40.6 C (-41.1 F)
1991	-40.0 C (-40.0 F)
1992	-33.9 C (-29.0 F)
1993	-42.2 C (-44.0 F)
1994	-36.7 C (-34.1 F)
1995	-38.3 C (-36.9 F)
1996	-38.3 C (-36.9 F)
1997	-43.9 C (-47.0 F)
1998	-37.8 C (-36.0 F)
1999	-44.4 C (-47.9 F)
2000	-45.0 C (-49.0 F)
2001	-36.7 C (-34.1 F)
2002	-35.6 C (-32.1 F)
2003	-33.9 C (-29.0 F)
2004	-40.6 C (-41.1 F)
2005	-38.3 C (-36.9 F)
2006	-42.2 C (-44.0 F)
2007	-35.6 C (-32.1 F)
2008	-37.2 C (-35.0 F)
2009	-40.6 C (-41.1 F)
2010	-32.8 C (-27.0 F)
2011	-36.7 C (-34.1 F)
2012	-38.3 C (-36.9 F)
2013	-38.9 C (-38.0 F)

Wettest day (Rx1day)

The wettest day of the year at College 5 NW, 1976 to 2013. The record is 58.7 mm (2.3 in) in 1988, marked on the chart; the median year is 22.4 mm (0.9 in).

Wettest day (Rx1day) at College 5 NW by year
Year	Wettest day (Rx1day)
1976	13.5 mm (0.5 in)
1977	18.3 mm (0.7 in)
1978	21.3 mm (0.8 in)
1979	17.0 mm (0.7 in)
1980	15.2 mm (0.6 in)
1981	20.1 mm (0.8 in)
1982	20.8 mm (0.8 in)
1983	26.7 mm (1.1 in)
1984	24.9 mm (1.0 in)
1985	21.8 mm (0.9 in)
1986	41.7 mm (1.6 in)
1987	26.4 mm (1.0 in)
1988	58.7 mm (2.3 in)
1989	37.1 mm (1.5 in)
1990	32.3 mm (1.3 in)
1991	24.9 mm (1.0 in)
1992	17.8 mm (0.7 in)
1993	24.1 mm (0.9 in)
1994	27.4 mm (1.1 in)
1995	22.1 mm (0.9 in)
1996	27.7 mm (1.1 in)
1997	22.6 mm (0.9 in)
1998	23.6 mm (0.9 in)
1999	17.0 mm (0.7 in)
2000	29.0 mm (1.1 in)
2001	17.8 mm (0.7 in)
2002	28.7 mm (1.1 in)
2003	36.3 mm (1.4 in)
2004	19.1 mm (0.8 in)
2005	26.2 mm (1.0 in)
2006	15.2 mm (0.6 in)
2007	20.6 mm (0.8 in)
2008	10.4 mm (0.4 in)
2009	38.6 mm (1.5 in)
2010	14.7 mm (0.6 in)
2011	17.8 mm (0.7 in)
2012	27.4 mm (1.1 in)
2013	19.3 mm (0.8 in)

Wettest five days (Rx5day)

The wettest five days of the year at College 5 NW, 1976 to 2013. The record is 87.9 mm (3.5 in) in 1990, marked on the chart; the median year is 38.3 mm (1.5 in).

Wettest five days (Rx5day) at College 5 NW by year
Year	Wettest five days (Rx5day)
1976	15.3 mm (0.6 in)
1977	33.6 mm (1.3 in)
1978	24.4 mm (1.0 in)
1979	28.7 mm (1.1 in)
1980	34.0 mm (1.3 in)
1981	39.1 mm (1.5 in)
1982	31.1 mm (1.2 in)
1983	43.0 mm (1.7 in)
1984	40.9 mm (1.6 in)
1985	32.9 mm (1.3 in)
1986	48.8 mm (1.9 in)
1987	38.4 mm (1.5 in)
1988	77.0 mm (3.0 in)
1989	68.5 mm (2.7 in)
1990	87.9 mm (3.5 in)
1991	51.8 mm (2.0 in)
1992	32.0 mm (1.3 in)
1993	40.9 mm (1.6 in)
1994	52.1 mm (2.1 in)
1995	42.4 mm (1.7 in)
1996	45.3 mm (1.8 in)
1997	36.8 mm (1.4 in)
1998	43.7 mm (1.7 in)
1999	32.7 mm (1.3 in)
2000	50.4 mm (2.0 in)
2001	30.3 mm (1.2 in)
2002	58.7 mm (2.3 in)
2003	76.2 mm (3.0 in)
2004	24.7 mm (1.0 in)
2005	50.6 mm (2.0 in)
2006	30.7 mm (1.2 in)
2007	27.2 mm (1.1 in)
2008	15.5 mm (0.6 in)
2009	59.5 mm (2.3 in)
2010	22.2 mm (0.9 in)
2011	33.3 mm (1.3 in)
2012	38.1 mm (1.5 in)
2013	31.8 mm (1.3 in)

Longest dry spell (CDD)

The longest dry spell of the year at College 5 NW, 1976 to 2013. The record is 131 days in 1987, marked on the chart; the median year is 42 days.

Longest dry spell (CDD) at College 5 NW by year
Year	Longest dry spell (CDD)
1976	29 days
1977	32 days
1978	38 days
1979	37 days
1980	53 days
1981	55 days
1982	27 days
1983	52 days
1984	58 days
1985	28 days
1986	45 days
1987	131 days
1988	42 days
1989	60 days
1990	76 days
1991	50 days
1992	21 days
1993	37 days
1994	37 days
1995	59 days
1996	24 days
1997	65 days
1998	42 days
1999	28 days
2000	61 days
2001	50 days
2002	53 days
2003	40 days
2004	36 days
2005	41 days
2006	32 days
2007	41 days
2008	58 days
2009	26 days
2010	48 days
2011	30 days
2012	65 days
2013	31 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 College 5 NW falls on 17 May and the median first autumn frost on 9 September, which leaves a median of 115 days between them.

Fitted over all years, the growing season changes by +6.9 days per decade at this station.

Frost dates and growing season at College 5 NW
Measure	Median, all years	Earliest period	Recent period (1977 to 2012)	Recent against earliest	Fitted trend
Last spring frost	17 May	n/a	17 May	n/a	-3.1 days per decade
First autumn frost	9 September	n/a	9 September	n/a	+3.7 days per decade
Growing days	115 days	n/a	115 days	n/a	+6.9 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.

Rainfall Return Levels

32 years, 1977 to 2012

A day with at least 23.7 mm (0.9 in) of rain is expected about once in 2 years. A day with at least 60.7 mm (2.4 in) of rain is expected about once in 100 years.

Rainfall return levels at College 5 NW: the daily rain expected about once in a given number of years
Expected about once in	A day with at least	Note
2 years	23.7 mm (0.9 in)
5 years	31.1 mm (1.2 in)
10 years	36.8 mm (1.4 in)
25 years	45.3 mm (1.8 in)
50 years	52.6 mm (2.1 in)	Longer than the 32 years of record
100 years	60.7 mm (2.4 in)	Longer than the 32 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, 32 years of values from 1977 to 2012.

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: 58.7 mm (2.3 in) in 1988; 41.7 mm (1.6 in) in 1986; 38.6 mm (1.5 in) in 2009.

Download the Data

Data for College 5 NW standing records by year: CSV or JSON. Field meanings are on the data page.
Data for College 5 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 2026-10-17 (17 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).