Record envelope, standing records and threshold days for Tok (USC00509313), Alaska, United States, with 64 years of record.
Key Facts for Tok
Tok (USC00509313) is a weather station in Alaska, United States at 63.33 latitude and -143.04 longitude, 495 m (1,625 ft) above sea level.
The station reports from 1954 to 2017, 64 years of record.
1,464 records set at Tok still stand.
Records are tracked for tmax, tmin, prcp, snow, snwd: an element needs 30 years of data to be eligible.
Tok set a daily record precipitation of 14.5 mm (0.6 in) on 26 August 2017.
About the Station
Location: Alaska, United States, 63.33 latitude, -143.04 longitude.
Elevation: 495 m (1,625 ft).
Period of record: 1954 to 2017, 64 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 Tok. 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 Tok, with 2026 drawn through them
Month
Highest record high
Lowest record low
2026 highest maximum
2026 lowest minimum
Jan
6.1 C (43.0 F)
-57.2 C (-71.0 F)
n/a
n/a
Feb
6.1 C (43.0 F)
-55.0 C (-67.0 F)
n/a
n/a
Mar
20.6 C (69.1 F)
-49.4 C (-56.9 F)
n/a
n/a
Apr
23.3 C (73.9 F)
-36.1 C (-33.0 F)
n/a
n/a
May
31.1 C (88.0 F)
-16.1 C (3.0 F)
n/a
n/a
Jun
35.6 C (96.1 F)
-8.9 C (16.0 F)
n/a
n/a
Jul
35.0 C (95.0 F)
-12.2 C (10.0 F)
n/a
n/a
Aug
33.9 C (93.0 F)
-10.6 C (12.9 F)
n/a
n/a
Sep
28.3 C (82.9 F)
-25.0 C (-13.0 F)
n/a
n/a
Oct
19.4 C (66.9 F)
-40.6 C (-41.1 F)
n/a
n/a
Nov
9.4 C (48.9 F)
-50.6 C (-59.1 F)
n/a
n/a
Dec
4.4 C (39.9 F)
-56.7 C (-70.1 F)
n/a
n/a
Which Years Hold Standing Records
1,464 standing records
Year with most
1,464 records at Tok still stand. 1964 holds the most, with 80.
Standing records at Tok by the year they were set
Year set
Standing records
1954
18
1955
25
1956
38
1957
26
1958
18
1959
18
1960
28
1961
25
1962
21
1963
30
1964
80
1965
38
1967
7
1968
26
1969
31
1970
36
1971
35
1972
41
1973
10
1974
24
1975
46
1976
17
1977
21
1978
4
1979
35
1980
21
1981
17
1982
19
1983
9
1984
17
1985
36
1986
32
1987
18
1988
26
1989
43
1990
20
1991
10
1992
32
1993
23
1994
25
1995
16
1996
22
1997
11
1998
10
1999
21
2000
14
2001
9
2002
29
2003
27
2004
30
2005
26
2006
20
2007
9
2008
13
2009
27
2010
13
2011
8
2012
23
2013
32
2014
15
2015
16
2016
20
2017
7
All-Time Record Progression
4 new records
4 all-time records were set at Tok between 16 June 1988 and 11 November 2013. Each dot is a new record.
When Tok set new all-time records
Date
Kind
Detail
1988-06-16
Record high minimum temperature
Record high minimum temperature 16.7 C (62.1 F)
1988-07-17
Record high minimum temperature
Record high minimum temperature 20.6 C (69.1 F)
1999-12-28
Record snow depth
Record snow depth 78.7 cm (31.0 in)
2013-11-11
Record daily snowfall
Record daily snowfall 40.6 cm (16.0 in)
Wettest Day of Each Month
Jul: 57.2 mm (2.3 in)
The wettest day on record for each calendar month at Tok. The most was 57.2 mm (2.3 in) on 31 July 1985.
Record daily precipitation for each month at Tok
Month
Record daily precipitation (mm)
Date
Jan
26.7 mm (1.1 in)
5 January 2005
Feb
26.7 mm (1.1 in)
20 February 1964
Mar
12.7 mm (0.5 in)
29 March 1982
Apr
17.0 mm (0.7 in)
22 April 2012
May
26.7 mm (1.1 in)
25 May 1994
Jun
53.6 mm (2.1 in)
25 June 1993
Jul
57.2 mm (2.3 in)
31 July 1985
Aug
35.6 mm (1.4 in)
7 August 1958
Sep
37.1 mm (1.5 in)
9 September 2010
Oct
45.7 mm (1.8 in)
6 October 2012
Nov
50.8 mm (2.0 in)
9 November 1982
Dec
33.0 mm (1.3 in)
23 December 1998
Period of Record Coverage
1954 to 2017
Complete yearUnder 90 percent of days
64 years of record at Tok, 1954 to 2017. 22 years have data for under 90 percent of days and are left out of rankings: 1954, 1955, 1958, 1963, 1964, 1965, 1966, 1967 and others.
Cooler than the station meanWarmer than the station mean
One stripe for each of 35 complete years at Tok, 1956 to 2016. Blue stripes are years cooler than the station's own mean of -4.3 C (24.3 F); red stripes are warmer. The coolest year was 1956, at -7.2 C (19.1 F), and the warmest was 1993, at -2.1 C (28.3 F). The strongest colour marks a difference of 2.9 C (5.2 F).
Annual mean temperature at Tok as warming stripes, 1956 to 2016
Year
Annual mean temperature
Difference from the station mean
1956
-7.2 C
-2.89 C
1959
-5.4 C
-1.14 C
1960
-4.2 C
+0.07 C
1961
-6.6 C
-2.31 C
1962
-3.7 C
+0.61 C
1968
-5.4 C
-1.12 C
1969
-5.7 C
-1.41 C
1970
-5.2 C
-0.88 C
1971
-7.2 C
-2.87 C
1982
-6.4 C
-2.09 C
1983
-5.2 C
-0.87 C
1984
-3.9 C
+0.34 C
1985
-4.4 C
-0.07 C
1986
-3.8 C
+0.49 C
1987
-2.4 C
+1.88 C
1988
-3.3 C
+0.95 C
1989
-4.2 C
+0.07 C
1993
-2.1 C
+2.22 C
1997
-3.9 C
+0.35 C
1998
-3.7 C
+0.60 C
1999
-5.1 C
-0.83 C
2000
-3.4 C
+0.87 C
2001
-3.0 C
+1.31 C
2002
-2.5 C
+1.78 C
2003
-3.3 C
+0.97 C
2004
-3.4 C
+0.88 C
2005
-2.9 C
+1.35 C
2006
-5.4 C
-1.12 C
2007
-4.5 C
-0.17 C
2009
-4.2 C
+0.12 C
2010
-2.8 C
+1.44 C
2011
-4.6 C
-0.33 C
2012
-5.7 C
-1.45 C
2015
-3.1 C
+1.20 C
2016
-2.1 C
+2.19 C
The annual mean temperature here has risen by 0.4 C (0.2 to 0.6) per decade over 1956 to 2016. In Fahrenheit: 0.8 F (0.4 to 1.2) per decade. The slope is a straight line fitted to 35 complete years; the brackets give its 95 percent interval.
Fitted temperature trends per decade at Tok
Measure
Per decade (C)
Per decade (F)
Period
Complete years
Reading
Annual mean temperature
0.4 C (0.2 to 0.6) per decade
0.8 F (0.4 to 1.2) per decade
1956 to 2016
35
Rise
Mean daily maximum
0.3 C (0.1 to 0.6) per decade
0.6 F (0.2 to 1.0) per decade
1956 to 2016
35
Rise
Mean daily minimum
0.5 C (0.3 to 0.8) per decade
0.9 F (0.5 to 1.4) per decade
1956 to 2016
35
Rise
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
1954 to 2017
Yearly extremes at Tok: 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)
1969
30.0 C (86.0 F)
64
Coldest night (TNn)
-57.2 C (-71.0 F)
1965
-49.7 C (-57.5 F)
64
Wettest day (Rx1day)
57.2 mm (2.3 in)
1985
23.1 mm (0.9 in)
61
Wettest five days (Rx5day)
94.2 mm (3.7 in)
1997
34.5 mm (1.4 in)
61
Longest dry spell (CDD)
142 days
1993
48 days
61
Hottest day (TXx)
The hottest day of the year at Tok, 1954 to 2017. The record is 35.6 C (96.1 F) in 1969, marked on the chart; the median year is 30.0 C (86.0 F).
Hottest day (TXx) at Tok by year
Year
Hottest day (TXx)
1954
30.0 C (86.0 F)
1955
33.3 C (91.9 F)
1956
28.3 C (82.9 F)
1957
30.0 C (86.0 F)
1958
32.8 C (91.0 F)
1959
29.4 C (84.9 F)
1960
31.1 C (88.0 F)
1961
30.0 C (86.0 F)
1962
31.1 C (88.0 F)
1963
29.4 C (84.9 F)
1964
28.3 C (82.9 F)
1965
21.7 C (71.1 F)
1966
-16.1 C (3.0 F)
1967
19.4 C (66.9 F)
1968
30.0 C (86.0 F)
1969
35.6 C (96.1 F)
1970
28.3 C (82.9 F)
1971
30.0 C (86.0 F)
1972
32.2 C (90.0 F)
1973
28.9 C (84.0 F)
1974
28.9 C (84.0 F)
1975
26.1 C (79.0 F)
1976
32.2 C (90.0 F)
1977
32.8 C (91.0 F)
1978
30.6 C (87.1 F)
1979
27.2 C (81.0 F)
1980
30.0 C (86.0 F)
1981
28.9 C (84.0 F)
1982
31.1 C (88.0 F)
1983
32.2 C (90.0 F)
1984
27.8 C (82.0 F)
1985
28.3 C (82.9 F)
1986
33.9 C (93.0 F)
1987
31.1 C (88.0 F)
1988
27.2 C (81.0 F)
1989
32.2 C (90.0 F)
1990
31.7 C (89.1 F)
1991
22.8 C (73.0 F)
1992
31.7 C (89.1 F)
1993
35.0 C (95.0 F)
1994
33.9 C (93.0 F)
1995
27.8 C (82.0 F)
1996
28.3 C (82.9 F)
1997
30.0 C (86.0 F)
1998
32.8 C (91.0 F)
1999
32.8 C (91.0 F)
2000
30.0 C (86.0 F)
2001
32.2 C (90.0 F)
2002
31.1 C (88.0 F)
2003
32.8 C (91.0 F)
2004
35.6 C (96.1 F)
2005
29.4 C (84.9 F)
2006
27.2 C (81.0 F)
2007
27.2 C (81.0 F)
2008
27.8 C (82.0 F)
2009
31.7 C (89.1 F)
2010
31.1 C (88.0 F)
2011
29.4 C (84.9 F)
2012
27.8 C (82.0 F)
2013
33.3 C (91.9 F)
2014
27.2 C (81.0 F)
2015
31.1 C (88.0 F)
2016
30.0 C (86.0 F)
2017
32.8 C (91.0 F)
Coldest night (TNn)
The coldest night of the year at Tok, 1954 to 2017. The record is -57.2 C (-71.0 F) in 1965, marked on the chart; the median year is -49.7 C (-57.5 F).
Coldest night (TNn) at Tok by year
Year
Coldest night (TNn)
1954
-51.1 C (-60.0 F)
1955
-50.6 C (-59.1 F)
1956
-54.4 C (-65.9 F)
1957
-48.3 C (-54.9 F)
1958
-43.3 C (-45.9 F)
1959
-51.7 C (-61.1 F)
1960
-46.7 C (-52.1 F)
1961
-53.9 C (-65.0 F)
1962
-56.1 C (-69.0 F)
1963
-51.1 C (-60.0 F)
1964
-56.7 C (-70.1 F)
1965
-57.2 C (-71.0 F)
1966
-49.4 C (-56.9 F)
1967
-42.2 C (-44.0 F)
1968
-55.0 C (-67.0 F)
1969
-53.3 C (-63.9 F)
1970
-52.8 C (-63.0 F)
1971
-56.7 C (-70.1 F)
1972
-51.1 C (-60.0 F)
1973
-55.6 C (-68.1 F)
1974
-50.0 C (-58.0 F)
1975
-56.7 C (-70.1 F)
1976
-48.3 C (-54.9 F)
1977
-49.4 C (-56.9 F)
1978
-42.8 C (-45.0 F)
1979
-54.4 C (-65.9 F)
1980
-55.6 C (-68.1 F)
1981
-48.3 C (-54.9 F)
1982
-52.8 C (-63.0 F)
1983
-51.7 C (-61.1 F)
1984
-50.6 C (-59.1 F)
1985
-47.2 C (-53.0 F)
1986
-44.4 C (-47.9 F)
1987
-45.6 C (-50.1 F)
1988
-42.2 C (-44.0 F)
1989
-52.8 C (-63.0 F)
1990
-49.4 C (-56.9 F)
1991
-43.9 C (-47.0 F)
1992
-43.9 C (-47.0 F)
1993
-51.1 C (-60.0 F)
1994
-47.8 C (-54.0 F)
1995
-48.9 C (-56.0 F)
1996
-51.1 C (-60.0 F)
1997
-51.7 C (-61.1 F)
1998
-50.6 C (-59.1 F)
1999
-50.0 C (-58.0 F)
2000
-51.1 C (-60.0 F)
2001
-42.8 C (-45.0 F)
2002
-38.9 C (-38.0 F)
2003
-42.2 C (-44.0 F)
2004
-49.4 C (-56.9 F)
2005
-52.8 C (-63.0 F)
2006
-47.8 C (-54.0 F)
2007
-47.8 C (-54.0 F)
2008
-51.1 C (-60.0 F)
2009
-52.8 C (-63.0 F)
2010
-41.1 C (-42.0 F)
2011
-46.1 C (-51.0 F)
2012
-49.4 C (-56.9 F)
2013
-48.3 C (-54.9 F)
2014
-42.2 C (-44.0 F)
2015
-48.3 C (-54.9 F)
2016
-40.6 C (-41.1 F)
2017
-42.2 C (-44.0 F)
Wettest day (Rx1day)
The wettest day of the year at Tok, 1954 to 2017. The record is 57.2 mm (2.3 in) in 1985, marked on the chart; the median year is 23.1 mm (0.9 in).
Wettest day (Rx1day) at Tok by year
Year
Wettest day (Rx1day)
1954
17.8 mm (0.7 in)
1955
0.0 mm (0.00 in)
1956
22.9 mm (0.9 in)
1957
n/a
1958
35.6 mm (1.4 in)
1959
22.9 mm (0.9 in)
1960
20.8 mm (0.8 in)
1961
24.1 mm (0.9 in)
1962
20.3 mm (0.8 in)
1963
12.7 mm (0.5 in)
1964
31.0 mm (1.2 in)
1965
n/a
1966
n/a
1967
5.3 mm (0.21 in)
1968
24.6 mm (1.0 in)
1969
29.7 mm (1.2 in)
1970
23.6 mm (0.9 in)
1971
18.0 mm (0.7 in)
1972
17.8 mm (0.7 in)
1973
21.8 mm (0.9 in)
1974
21.1 mm (0.8 in)
1975
6.6 mm (0.26 in)
1976
15.2 mm (0.6 in)
1977
36.8 mm (1.4 in)
1978
13.2 mm (0.5 in)
1979
13.2 mm (0.5 in)
1980
11.7 mm (0.5 in)
1981
28.7 mm (1.1 in)
1982
50.8 mm (2.0 in)
1983
22.4 mm (0.9 in)
1984
51.1 mm (2.0 in)
1985
57.2 mm (2.3 in)
1986
23.1 mm (0.9 in)
1987
25.4 mm (1.0 in)
1988
26.2 mm (1.0 in)
1989
30.0 mm (1.2 in)
1990
17.8 mm (0.7 in)
1991
10.4 mm (0.4 in)
1992
21.3 mm (0.8 in)
1993
53.6 mm (2.1 in)
1994
26.7 mm (1.1 in)
1995
13.2 mm (0.5 in)
1996
10.2 mm (0.4 in)
1997
41.9 mm (1.6 in)
1998
33.0 mm (1.3 in)
1999
30.0 mm (1.2 in)
2000
25.9 mm (1.0 in)
2001
50.0 mm (2.0 in)
2002
23.1 mm (0.9 in)
2003
15.7 mm (0.6 in)
2004
12.7 mm (0.5 in)
2005
26.7 mm (1.1 in)
2006
23.9 mm (0.9 in)
2007
33.3 mm (1.3 in)
2008
16.8 mm (0.7 in)
2009
23.6 mm (0.9 in)
2010
53.6 mm (2.1 in)
2011
19.1 mm (0.8 in)
2012
45.7 mm (1.8 in)
2013
35.6 mm (1.4 in)
2014
38.1 mm (1.5 in)
2015
15.5 mm (0.6 in)
2016
20.6 mm (0.8 in)
2017
17.0 mm (0.7 in)
Wettest five days (Rx5day)
The wettest five days of the year at Tok, 1954 to 2017. The record is 94.2 mm (3.7 in) in 1997, marked on the chart; the median year is 34.5 mm (1.4 in).
Wettest five days (Rx5day) at Tok by year
Year
Wettest five days (Rx5day)
1954
25.7 mm (1.0 in)
1955
0.0 mm (0.00 in)
1956
34.3 mm (1.4 in)
1957
n/a
1958
54.6 mm (2.1 in)
1959
33.6 mm (1.3 in)
1960
44.8 mm (1.8 in)
1961
37.8 mm (1.5 in)
1962
41.4 mm (1.6 in)
1963
12.7 mm (0.5 in)
1964
31.8 mm (1.3 in)
1965
n/a
1966
n/a
1967
6.4 mm (0.25 in)
1968
39.9 mm (1.6 in)
1969
42.4 mm (1.7 in)
1970
42.1 mm (1.7 in)
1971
30.7 mm (1.2 in)
1972
49.5 mm (1.9 in)
1973
35.6 mm (1.4 in)
1974
30.0 mm (1.2 in)
1975
6.6 mm (0.26 in)
1976
23.7 mm (0.9 in)
1977
52.0 mm (2.0 in)
1978
13.2 mm (0.5 in)
1979
13.2 mm (0.5 in)
1980
11.7 mm (0.5 in)
1981
28.7 mm (1.1 in)
1982
53.3 mm (2.1 in)
1983
35.6 mm (1.4 in)
1984
73.9 mm (2.9 in)
1985
77.1 mm (3.0 in)
1986
34.1 mm (1.3 in)
1987
29.5 mm (1.2 in)
1988
54.4 mm (2.1 in)
1989
31.8 mm (1.3 in)
1990
19.8 mm (0.8 in)
1991
22.6 mm (0.9 in)
1992
38.4 mm (1.5 in)
1993
62.7 mm (2.5 in)
1994
46.6 mm (1.8 in)
1995
17.2 mm (0.7 in)
1996
18.8 mm (0.7 in)
1997
94.2 mm (3.7 in)
1998
34.5 mm (1.4 in)
1999
40.4 mm (1.6 in)
2000
76.5 mm (3.0 in)
2001
55.6 mm (2.2 in)
2002
34.0 mm (1.3 in)
2003
24.6 mm (1.0 in)
2004
22.4 mm (0.9 in)
2005
56.6 mm (2.2 in)
2006
38.1 mm (1.5 in)
2007
41.0 mm (1.6 in)
2008
25.5 mm (1.0 in)
2009
41.9 mm (1.6 in)
2010
68.3 mm (2.7 in)
2011
33.0 mm (1.3 in)
2012
55.6 mm (2.2 in)
2013
40.2 mm (1.6 in)
2014
38.1 mm (1.5 in)
2015
26.4 mm (1.0 in)
2016
24.3 mm (1.0 in)
2017
25.9 mm (1.0 in)
Longest dry spell (CDD)
The longest dry spell of the year at Tok, 1954 to 2017. The record is 142 days in 1993, marked on the chart; the median year is 48 days.
Longest dry spell (CDD) at Tok by year
Year
Longest dry spell (CDD)
1954
28 days
1955
13 days
1956
21 days
1957
n/a
1958
20 days
1959
39 days
1960
57 days
1961
20 days
1962
25 days
1963
48 days
1964
32 days
1965
n/a
1966
n/a
1967
24 days
1968
33 days
1969
49 days
1970
48 days
1971
52 days
1972
106 days
1973
93 days
1974
41 days
1975
59 days
1976
24 days
1977
40 days
1978
52 days
1979
41 days
1980
135 days
1981
74 days
1982
42 days
1983
75 days
1984
95 days
1985
46 days
1986
56 days
1987
102 days
1988
61 days
1989
90 days
1990
124 days
1991
44 days
1992
41 days
1993
142 days
1994
69 days
1995
59 days
1996
36 days
1997
47 days
1998
52 days
1999
86 days
2000
58 days
2001
60 days
2002
48 days
2003
62 days
2004
37 days
2005
59 days
2006
36 days
2007
34 days
2008
32 days
2009
30 days
2010
35 days
2011
46 days
2012
49 days
2013
30 days
2014
69 days
2015
51 days
2016
58 days
2017
48 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
35 years with a frost
Across 35 years with a frost, the median last spring frost at Tok falls on 14 June and the median first autumn frost on 3 August, which leaves a median of 52 days between them.
Fitted over all years, the growing season changes by +1.4 days per decade at this station.
Frost dates and growing season at Tok
Measure
Median, all years
Earliest period
Recent period (1968 to 2016)
Recent against earliest
Fitted trend
Last spring frost
14 June
n/a
15 June
n/a
-0.5 days per decade
First autumn frost
3 August
n/a
1 August
n/a
+0.9 days per decade
Growing days
52 days
n/a
50 days
n/a
+1.4 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
41 years, 1959 to 2016
A day with at least 25.9 mm (1.0 in) of rain is expected about once in 2 years. A day with at least 72.3 mm (2.8 in) of rain is expected about once in 100 years.
Rainfall return levels at Tok: the daily rain expected about once in a given number of years
Expected about once in
A day with at least
Note
2 years
25.9 mm (1.0 in)
5 years
35.8 mm (1.4 in)
10 years
43.2 mm (1.7 in)
25 years
53.8 mm (2.1 in)
50 years
62.6 mm (2.5 in)
Longer than the 41 years of record
100 years
72.3 mm (2.8 in)
Longer than the 41 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, 41 years of values from 1959 to 2016.
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: 53.6 mm (2.1 in) in 1993; 53.6 mm (2.1 in) in 2010; 51.1 mm (2.0 in) in 1984.
Download the Data
Data for Tok standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Tok 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 2026-10-13 (13 October 2026). Records are computed by this site and are not official.