Record envelope, standing records and threshold days for McCarthy 3 SW (USC00505757), Alaska, United States, with 31 years of record.
Key Facts for McCarthy 3 SW
McCarthy 3 SW (USC00505757) is a weather station in Alaska, United States at 61.42 latitude and -143.00 longitude, 381 m (1,250 ft) above sea level.
The station reports from 1984 to 2014, 31 years of record.
1,464 records set at McCarthy 3 SW still stand.
Records are tracked for tmax, tmin, prcp, snow, snwd: an element needs 30 years of data to be eligible.
McCarthy 3 SW tied a daily record high minimum temperature of 8.3 C (46.9 F) on 18 August 2014.
About the Station
Location: Alaska, United States, 61.42 latitude, -143.00 longitude.
Elevation: 381 m (1,250 ft).
Period of record: 1984 to 2014, 31 years.
Eligible elements: tmax, tmin, prcp, snow, snwd.
Daily Record Envelope and 2026
0 days at or beyond a record
Record highRecord low2026 daily maximum2026 daily minimum
The band shows the record high and record low for each calendar day at McCarthy 3 SW. 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 McCarthy 3 SW, 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)
-48.3 C (-54.9 F)
n/a
n/a
Feb
8.9 C (48.0 F)
-45.0 C (-49.0 F)
n/a
n/a
Mar
13.3 C (55.9 F)
-40.6 C (-41.1 F)
n/a
n/a
Apr
21.7 C (71.1 F)
-29.4 C (-20.9 F)
n/a
n/a
May
27.8 C (82.0 F)
-18.3 C (-0.9 F)
n/a
n/a
Jun
32.2 C (90.0 F)
-4.4 C (24.1 F)
n/a
n/a
Jul
31.1 C (88.0 F)
-2.2 C (28.0 F)
n/a
n/a
Aug
30.0 C (86.0 F)
-7.8 C (18.0 F)
n/a
n/a
Sep
22.2 C (72.0 F)
-14.4 C (6.1 F)
n/a
n/a
Oct
23.9 C (75.0 F)
-30.0 C (-22.0 F)
n/a
n/a
Nov
6.7 C (44.1 F)
-43.3 C (-45.9 F)
n/a
n/a
Dec
13.3 C (55.9 F)
-45.6 C (-50.1 F)
n/a
n/a
Which Years Hold Standing Records
1,464 standing records
Year with most
1,464 records at McCarthy 3 SW still stand. 1985 holds the most, with 91.
Standing records at McCarthy 3 SW by the year they were set
Year set
Standing records
1984
57
1985
91
1986
63
1987
38
1988
43
1989
61
1990
34
1991
40
1992
72
1993
45
1994
53
1995
53
1996
71
1997
45
1998
48
1999
47
2000
49
2001
41
2002
47
2003
52
2004
51
2005
73
2006
21
2007
48
2008
29
2009
40
2010
28
2011
27
2012
35
2013
52
2014
10
Wettest Day of Each Month
Dec: 63.8 mm (2.5 in)
The wettest day on record for each calendar month at McCarthy 3 SW. The most was 63.8 mm (2.5 in) on 16 December 1988.
Record daily precipitation for each month at McCarthy 3 SW
Month
Record daily precipitation (mm)
Date
Jan
35.6 mm (1.4 in)
7 January 2001
Feb
31.8 mm (1.3 in)
27 February 2001
Mar
15.7 mm (0.6 in)
6 March 2009
Apr
14.7 mm (0.6 in)
2 April 2004
May
25.4 mm (1.0 in)
15 May 2002
Jun
26.2 mm (1.0 in)
23 June 1992
Jul
43.9 mm (1.7 in)
20 July 1992
Aug
59.2 mm (2.3 in)
13 August 1985
Sep
35.6 mm (1.4 in)
17 September 2000
Oct
63.5 mm (2.5 in)
10 October 2006
Nov
47.2 mm (1.9 in)
1 November 1999
Dec
63.8 mm (2.5 in)
16 December 1988
Period of Record Coverage
1984 to 2014
Complete yearUnder 90 percent of days
31 years of record at McCarthy 3 SW, 1984 to 2014. 12 years have data for under 90 percent of days and are left out of rankings: 1989, 1990, 1992, 2002, 2003, 2006, 2008, 2009 and others.
Cooler than the station meanWarmer than the station mean
One stripe for each of 14 complete years at McCarthy 3 SW, 1985 to 2007. Blue stripes are years cooler than the station's own mean of -1.2 C (29.8 F); red stripes are warmer. The coolest year was 1999, at -2.5 C (27.4 F), and the warmest was 2005, at -0.1 C (31.9 F). The strongest colour marks a difference of 1.3 C (2.3 F).
Annual mean temperature at McCarthy 3 SW as warming stripes, 1985 to 2007
Year
Annual mean temperature
Difference from the station mean
1985
-2.2 C
-0.92 C
1986
-1.3 C
-0.11 C
1987
-0.3 C
+0.98 C
1988
-1.4 C
-0.12 C
1993
-0.3 C
+0.94 C
1995
-2.1 C
-0.86 C
1997
-1.2 C
+0.04 C
1998
-1.9 C
-0.70 C
1999
-2.5 C
-1.29 C
2000
-0.8 C
+0.45 C
2001
-1.4 C
-0.18 C
2004
-0.5 C
+0.72 C
2005
-0.1 C
+1.16 C
2007
-1.3 C
-0.08 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
1984 to 2014
Yearly extremes at McCarthy 3 SW: the record and the median year
Measure
Record
Year of the record
Median year
Years with a value
Hottest day (TXx)
32.2 C (90.0 F)
2013
28.3 C (82.9 F)
31
Coldest night (TNn)
-48.3 C (-54.9 F)
1993
-42.8 C (-45.0 F)
31
Wettest day (Rx1day)
63.8 mm (2.5 in)
1988
29.0 mm (1.1 in)
31
Wettest five days (Rx5day)
119.4 mm (4.7 in)
1985
50.6 mm (2.0 in)
31
Longest dry spell (CDD)
69 days
1998
37 days
31
Hottest day (TXx)
The hottest day of the year at McCarthy 3 SW, 1984 to 2014. The record is 32.2 C (90.0 F) in 2013, marked on the chart; the median year is 28.3 C (82.9 F).
Hottest day (TXx) at McCarthy 3 SW by year
Year
Hottest day (TXx)
1984
27.2 C (81.0 F)
1985
27.8 C (82.0 F)
1986
27.8 C (82.0 F)
1987
28.9 C (84.0 F)
1988
26.7 C (80.1 F)
1989
30.0 C (86.0 F)
1990
28.9 C (84.0 F)
1991
30.6 C (87.1 F)
1992
28.9 C (84.0 F)
1993
30.6 C (87.1 F)
1994
27.8 C (82.0 F)
1995
27.8 C (82.0 F)
1996
26.7 C (80.1 F)
1997
28.9 C (84.0 F)
1998
29.4 C (84.9 F)
1999
29.4 C (84.9 F)
2000
26.7 C (80.1 F)
2001
27.2 C (81.0 F)
2002
27.8 C (82.0 F)
2003
28.3 C (82.9 F)
2004
31.7 C (89.1 F)
2005
28.9 C (84.0 F)
2006
27.2 C (81.0 F)
2007
27.8 C (82.0 F)
2008
27.2 C (81.0 F)
2009
31.1 C (88.0 F)
2010
27.8 C (82.0 F)
2011
27.8 C (82.0 F)
2012
28.3 C (82.9 F)
2013
32.2 C (90.0 F)
2014
28.3 C (82.9 F)
Coldest night (TNn)
The coldest night of the year at McCarthy 3 SW, 1984 to 2014. The record is -48.3 C (-54.9 F) in 1993, marked on the chart; the median year is -42.8 C (-45.0 F).
Coldest night (TNn) at McCarthy 3 SW by year
Year
Coldest night (TNn)
1984
-46.1 C (-51.0 F)
1985
-43.3 C (-45.9 F)
1986
-41.7 C (-43.1 F)
1987
-40.6 C (-41.1 F)
1988
-40.0 C (-40.0 F)
1989
-45.0 C (-49.0 F)
1990
-44.4 C (-47.9 F)
1991
-43.9 C (-47.0 F)
1992
-41.7 C (-43.1 F)
1993
-48.3 C (-54.9 F)
1994
-40.6 C (-41.1 F)
1995
-43.3 C (-45.9 F)
1996
-47.8 C (-54.0 F)
1997
-44.4 C (-47.9 F)
1998
-42.8 C (-45.0 F)
1999
-45.6 C (-50.1 F)
2000
-41.1 C (-42.0 F)
2001
-45.6 C (-50.1 F)
2002
-40.6 C (-41.1 F)
2003
-36.7 C (-34.1 F)
2004
-44.4 C (-47.9 F)
2005
-42.8 C (-45.0 F)
2006
-35.0 C (-31.0 F)
2007
-41.1 C (-42.0 F)
2008
-42.8 C (-45.0 F)
2009
-45.0 C (-49.0 F)
2010
-41.7 C (-43.1 F)
2011
-36.7 C (-34.1 F)
2012
-42.2 C (-44.0 F)
2013
-31.1 C (-24.0 F)
2014
-6.1 C (21.0 F)
Wettest day (Rx1day)
The wettest day of the year at McCarthy 3 SW, 1984 to 2014. The record is 63.8 mm (2.5 in) in 1988, marked on the chart; the median year is 29.0 mm (1.1 in).
Wettest day (Rx1day) at McCarthy 3 SW by year
Year
Wettest day (Rx1day)
1984
20.8 mm (0.8 in)
1985
59.2 mm (2.3 in)
1986
38.9 mm (1.5 in)
1987
21.1 mm (0.8 in)
1988
63.8 mm (2.5 in)
1989
27.4 mm (1.1 in)
1990
24.6 mm (1.0 in)
1991
34.5 mm (1.4 in)
1992
43.9 mm (1.7 in)
1993
42.7 mm (1.7 in)
1994
22.9 mm (0.9 in)
1995
35.3 mm (1.4 in)
1996
25.4 mm (1.0 in)
1997
29.0 mm (1.1 in)
1998
23.9 mm (0.9 in)
1999
47.2 mm (1.9 in)
2000
35.6 mm (1.4 in)
2001
35.6 mm (1.4 in)
2002
34.0 mm (1.3 in)
2003
25.4 mm (1.0 in)
2004
28.7 mm (1.1 in)
2005
37.8 mm (1.5 in)
2006
63.5 mm (2.5 in)
2007
28.4 mm (1.1 in)
2008
29.2 mm (1.1 in)
2009
19.1 mm (0.8 in)
2010
19.1 mm (0.8 in)
2011
20.3 mm (0.8 in)
2012
25.7 mm (1.0 in)
2013
29.0 mm (1.1 in)
2014
23.4 mm (0.9 in)
Wettest five days (Rx5day)
The wettest five days of the year at McCarthy 3 SW, 1984 to 2014. The record is 119.4 mm (4.7 in) in 1985, marked on the chart; the median year is 50.6 mm (2.0 in).
Wettest five days (Rx5day) at McCarthy 3 SW by year
Year
Wettest five days (Rx5day)
1984
34.2 mm (1.3 in)
1985
119.4 mm (4.7 in)
1986
41.3 mm (1.6 in)
1987
34.6 mm (1.4 in)
1988
87.0 mm (3.4 in)
1989
38.3 mm (1.5 in)
1990
50.6 mm (2.0 in)
1991
42.9 mm (1.7 in)
1992
62.8 mm (2.5 in)
1993
59.0 mm (2.3 in)
1994
23.4 mm (0.9 in)
1995
65.8 mm (2.6 in)
1996
41.1 mm (1.6 in)
1997
57.7 mm (2.3 in)
1998
44.7 mm (1.8 in)
1999
77.7 mm (3.1 in)
2000
117.6 mm (4.6 in)
2001
47.0 mm (1.9 in)
2002
55.7 mm (2.2 in)
2003
30.2 mm (1.2 in)
2004
63.7 mm (2.5 in)
2005
94.7 mm (3.7 in)
2006
87.4 mm (3.4 in)
2007
52.3 mm (2.1 in)
2008
61.4 mm (2.4 in)
2009
43.1 mm (1.7 in)
2010
35.6 mm (1.4 in)
2011
35.6 mm (1.4 in)
2012
33.1 mm (1.3 in)
2013
62.5 mm (2.5 in)
2014
39.9 mm (1.6 in)
Longest dry spell (CDD)
The longest dry spell of the year at McCarthy 3 SW, 1984 to 2014. The record is 69 days in 1998, marked on the chart; the median year is 37 days.
Longest dry spell (CDD) at McCarthy 3 SW by year
Year
Longest dry spell (CDD)
1984
49 days
1985
24 days
1986
49 days
1987
34 days
1988
46 days
1989
40 days
1990
22 days
1991
28 days
1992
25 days
1993
60 days
1994
55 days
1995
37 days
1996
68 days
1997
16 days
1998
69 days
1999
29 days
2000
38 days
2001
29 days
2002
26 days
2003
44 days
2004
20 days
2005
37 days
2006
35 days
2007
50 days
2008
30 days
2009
21 days
2010
40 days
2011
37 days
2012
45 days
2013
32 days
2014
22 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 McCarthy 3 SW standing records by year: CSV or JSON. Field meanings are on the data page.
Data for McCarthy 3 SW 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.