Record envelope, standing records and threshold days for Chulitna Rvr (USC00501926), Alaska, United States, with 52 years of record.
Key Facts for Chulitna Rvr
Chulitna Rvr (USC00501926) is a weather station in Alaska, United States at 62.83 latitude and -149.91 longitude, 413 m (1,354 ft) above sea level.
The station reports from 1971 to 2022, 52 years of record.
1,464 records set at Chulitna Rvr still stand.
Records are tracked for tmax, tmin, prcp, snow, snwd: an element needs 30 years of data to be eligible.
Chulitna Rvr set a daily record low minimum temperature of -11.1 C (12.0 F) on 29 April 2022.
About the Station
Location: Alaska, United States, 62.83 latitude, -149.91 longitude.
Elevation: 413 m (1,354 ft).
Period of record: 1971 to 2022, 52 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 Chulitna Rvr. 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 Chulitna Rvr, 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)
-36.7 C (-34.1 F)
n/a
n/a
Feb
10.0 C (50.0 F)
-33.9 C (-29.0 F)
n/a
n/a
Mar
11.1 C (52.0 F)
-32.8 C (-27.0 F)
n/a
n/a
Apr
18.3 C (64.9 F)
-23.3 C (-9.9 F)
n/a
n/a
May
28.9 C (84.0 F)
-14.4 C (6.1 F)
n/a
n/a
Jun
33.3 C (91.9 F)
-8.9 C (16.0 F)
n/a
n/a
Jul
32.2 C (90.0 F)
-3.3 C (26.1 F)
n/a
n/a
Aug
30.6 C (87.1 F)
-2.8 C (27.0 F)
n/a
n/a
Sep
23.9 C (75.0 F)
-19.4 C (-2.9 F)
n/a
n/a
Oct
18.3 C (64.9 F)
-22.8 C (-9.0 F)
n/a
n/a
Nov
9.4 C (48.9 F)
-28.3 C (-18.9 F)
n/a
n/a
Dec
7.2 C (45.0 F)
-37.8 C (-36.0 F)
n/a
n/a
Which Years Hold Standing Records
1,464 standing records
Year with most
1,464 records at Chulitna Rvr still stand. 1981 holds the most, with 68.
Standing records at Chulitna Rvr by the year they were set
Year set
Standing records
1971
7
1972
49
1973
24
1974
35
1975
10
1976
3
1977
30
1978
28
1979
29
1980
35
1981
68
1982
35
1983
33
1984
39
1985
53
1986
51
1987
18
1988
22
1989
41
1990
50
1991
29
1992
45
1993
35
1994
35
1996
8
1997
23
1998
12
1999
37
2000
11
2001
35
2002
46
2003
25
2004
36
2005
15
2006
28
2007
26
2008
14
2009
24
2010
28
2011
35
2012
25
2013
28
2014
31
2015
24
2016
20
2017
27
2018
32
2019
34
2020
19
2021
13
2022
4
All-Time Record Progression
4 new records
4 all-time records were set at Chulitna Rvr between 16 June 2013 and 22 February 2022. Each dot is a new record.
When Chulitna Rvr set new all-time records
Date
Kind
Detail
2013-06-16
Record high maximum temperature
Record high maximum temperature 31.7 C (89.1 F)
2013-06-17
Record high maximum temperature
Record high maximum temperature 32.8 C (91.0 F)
2013-06-26
Record high maximum temperature
Record high maximum temperature 33.3 C (91.9 F)
2022-02-22
Record snow depth
Record snow depth 302.3 cm (119.0 in)
Wettest Day of Each Month
Oct: 102.4 mm (4.0 in)
The wettest day on record for each calendar month at Chulitna Rvr. The most was 102.4 mm (4.0 in) on 10 October 1986.
Record daily precipitation for each month at Chulitna Rvr
Month
Record daily precipitation (mm)
Date
Jan
52.1 mm (2.1 in)
11 January 2007
Feb
50.8 mm (2.0 in)
12 February 2001
Mar
43.2 mm (1.7 in)
2 March 1990
Apr
33.3 mm (1.3 in)
19 April 2002
May
30.2 mm (1.2 in)
3 May 2013
Jun
46.2 mm (1.8 in)
25 June 1979
Jul
71.4 mm (2.8 in)
16 July 2003
Aug
92.7 mm (3.6 in)
18 August 2006
Sep
71.9 mm (2.8 in)
19 September 2012
Oct
102.4 mm (4.0 in)
10 October 1986
Nov
78.0 mm (3.1 in)
24 November 2015
Dec
88.9 mm (3.5 in)
9 December 2012
Period of Record Coverage
1971 to 2022
Complete yearUnder 90 percent of days
51 years of record at Chulitna Rvr, 1971 to 2022. 29 years have data for under 90 percent of days and are left out of rankings: 1971, 1973, 1974, 1975, 1976, 1977, 1978, 1982 and others.
Cooler than the station meanWarmer than the station mean
One stripe for each of 23 complete years at Chulitna Rvr, 1972 to 2021. Blue stripes are years cooler than the station's own mean of 0.2 C (32.4 F); red stripes are warmer. The coolest year was 1972, at -1.6 C (29.0 F), and the warmest was 1981, at 1.8 C (35.3 F). The strongest colour marks a difference of 1.9 C (3.4 F).
Annual mean temperature at Chulitna Rvr as warming stripes, 1972 to 2021
Year
Annual mean temperature
Difference from the station mean
1972
-1.6 C
-1.84 C
1973
-0.8 C
-0.98 C
1979
0.9 C
+0.69 C
1980
0.1 C
-0.14 C
1981
1.8 C
+1.64 C
1984
1.2 C
+0.99 C
1985
0.0 C
-0.23 C
1986
1.0 C
+0.84 C
1987
1.4 C
+1.24 C
1988
1.0 C
+0.79 C
1990
-0.3 C
-0.46 C
1997
1.0 C
+0.81 C
1998
0.3 C
+0.10 C
2000
0.2 C
-0.03 C
2001
-0.2 C
-0.42 C
2002
1.0 C
+0.77 C
2007
0.8 C
+0.56 C
2008
-0.6 C
-0.82 C
2010
0.4 C
+0.16 C
2011
-0.3 C
-0.46 C
2012
-1.0 C
-1.17 C
2020
-1.0 C
-1.20 C
2021
-0.7 C
-0.90 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
1971 to 2022
Yearly extremes at Chulitna Rvr: the record and the median year
Measure
Record
Year of the record
Median year
Years with a value
Hottest day (TXx)
33.3 C (91.9 F)
2013
27.8 C (82.0 F)
51
Coldest night (TNn)
-37.8 C (-36.0 F)
2001
-27.2 C (-17.0 F)
51
Wettest day (Rx1day)
102.4 mm (4.0 in)
1986
50.8 mm (2.0 in)
51
Wettest five days (Rx5day)
213.9 mm (8.4 in)
1986
98.2 mm (3.9 in)
51
Longest dry spell (CDD)
59 days
1993
25 days
51
Hottest day (TXx)
The hottest day of the year at Chulitna Rvr, 1971 to 2022. The record is 33.3 C (91.9 F) in 2013, marked on the chart; the median year is 27.8 C (82.0 F).
Hottest day (TXx) at Chulitna Rvr by year
Year
Hottest day (TXx)
1971
21.1 C (70.0 F)
1972
30.6 C (87.1 F)
1973
25.0 C (77.0 F)
1974
26.7 C (80.1 F)
1975
30.0 C (86.0 F)
1976
2.8 C (37.0 F)
1977
30.6 C (87.1 F)
1978
28.9 C (84.0 F)
1979
29.4 C (84.9 F)
1980
27.8 C (82.0 F)
1981
27.8 C (82.0 F)
1982
28.9 C (84.0 F)
1983
26.7 C (80.1 F)
1984
24.4 C (75.9 F)
1985
27.2 C (81.0 F)
1986
28.9 C (84.0 F)
1987
30.0 C (86.0 F)
1988
26.1 C (79.0 F)
1989
26.1 C (79.0 F)
1990
28.3 C (82.9 F)
1991
29.4 C (84.9 F)
1992
25.6 C (78.1 F)
1993
27.2 C (81.0 F)
1994
27.2 C (81.0 F)
1996
20.6 C (69.1 F)
1997
27.8 C (82.0 F)
1998
26.7 C (80.1 F)
1999
30.0 C (86.0 F)
2000
25.6 C (78.1 F)
2001
26.7 C (80.1 F)
2002
28.3 C (82.9 F)
2003
27.8 C (82.0 F)
2004
30.0 C (86.0 F)
2005
29.4 C (84.9 F)
2006
25.6 C (78.1 F)
2007
28.3 C (82.9 F)
2008
26.1 C (79.0 F)
2009
30.0 C (86.0 F)
2010
25.0 C (77.0 F)
2011
28.9 C (84.0 F)
2012
26.7 C (80.1 F)
2013
33.3 C (91.9 F)
2014
27.8 C (82.0 F)
2015
28.9 C (84.0 F)
2016
27.8 C (82.0 F)
2017
27.2 C (81.0 F)
2018
26.1 C (79.0 F)
2019
32.2 C (90.0 F)
2020
25.6 C (78.1 F)
2021
27.2 C (81.0 F)
2022
12.8 C (55.0 F)
Coldest night (TNn)
The coldest night of the year at Chulitna Rvr, 1971 to 2022. The record is -37.8 C (-36.0 F) in 2001, marked on the chart; the median year is -27.2 C (-17.0 F).
Coldest night (TNn) at Chulitna Rvr by year
Year
Coldest night (TNn)
1971
-28.3 C (-18.9 F)
1972
-31.7 C (-25.1 F)
1973
-31.7 C (-25.1 F)
1974
-32.8 C (-27.0 F)
1975
0.0 C (32.0 F)
1976
-23.3 C (-9.9 F)
1977
-22.8 C (-9.0 F)
1978
-22.8 C (-9.0 F)
1979
-27.2 C (-17.0 F)
1980
-31.1 C (-24.0 F)
1981
-23.9 C (-11.0 F)
1982
-27.2 C (-17.0 F)
1983
-26.7 C (-16.1 F)
1984
-28.3 C (-18.9 F)
1985
-27.2 C (-17.0 F)
1986
-23.3 C (-9.9 F)
1987
-25.6 C (-14.1 F)
1988
-27.8 C (-18.0 F)
1989
-36.7 C (-34.1 F)
1990
-27.2 C (-17.0 F)
1991
-28.3 C (-18.9 F)
1992
-27.8 C (-18.0 F)
1993
-30.0 C (-22.0 F)
1994
-24.4 C (-11.9 F)
1996
-21.1 C (-6.0 F)
1997
-28.3 C (-18.9 F)
1998
-22.2 C (-8.0 F)
1999
-33.9 C (-29.0 F)
2000
-29.4 C (-20.9 F)
2001
-37.8 C (-36.0 F)
2002
-25.6 C (-14.1 F)
2003
-31.1 C (-24.0 F)
2004
-27.8 C (-18.0 F)
2005
-28.3 C (-18.9 F)
2006
-33.3 C (-27.9 F)
2007
-27.8 C (-18.0 F)
2008
-26.7 C (-16.1 F)
2009
-32.2 C (-26.0 F)
2010
-21.7 C (-7.1 F)
2011
-27.8 C (-18.0 F)
2012
-29.4 C (-20.9 F)
2013
-26.7 C (-16.1 F)
2014
-21.7 C (-7.1 F)
2015
-27.2 C (-17.0 F)
2016
-22.2 C (-8.0 F)
2017
-27.2 C (-17.0 F)
2018
-22.2 C (-8.0 F)
2019
-31.1 C (-24.0 F)
2020
-31.1 C (-24.0 F)
2021
-25.0 C (-13.0 F)
2022
-17.8 C (0.0 F)
Wettest day (Rx1day)
The wettest day of the year at Chulitna Rvr, 1971 to 2022. The record is 102.4 mm (4.0 in) in 1986, marked on the chart; the median year is 50.8 mm (2.0 in).
Wettest day (Rx1day) at Chulitna Rvr by year
Year
Wettest day (Rx1day)
1971
20.8 mm (0.8 in)
1972
37.3 mm (1.5 in)
1973
54.6 mm (2.1 in)
1974
81.3 mm (3.2 in)
1975
33.0 mm (1.3 in)
1976
24.9 mm (1.0 in)
1977
52.1 mm (2.1 in)
1978
37.8 mm (1.5 in)
1979
57.2 mm (2.3 in)
1980
58.9 mm (2.3 in)
1981
56.9 mm (2.2 in)
1982
49.5 mm (1.9 in)
1983
61.7 mm (2.4 in)
1984
32.3 mm (1.3 in)
1985
52.3 mm (2.1 in)
1986
102.4 mm (4.0 in)
1987
49.5 mm (1.9 in)
1988
59.9 mm (2.4 in)
1989
40.6 mm (1.6 in)
1990
58.4 mm (2.3 in)
1991
37.1 mm (1.5 in)
1992
41.9 mm (1.6 in)
1993
28.4 mm (1.1 in)
1994
29.0 mm (1.1 in)
1996
42.9 mm (1.7 in)
1997
40.1 mm (1.6 in)
1998
62.5 mm (2.5 in)
1999
54.9 mm (2.2 in)
2000
58.4 mm (2.3 in)
2001
50.8 mm (2.0 in)
2002
50.8 mm (2.0 in)
2003
71.4 mm (2.8 in)
2004
53.3 mm (2.1 in)
2005
40.1 mm (1.6 in)
2006
92.7 mm (3.6 in)
2007
52.1 mm (2.1 in)
2008
23.4 mm (0.9 in)
2009
43.7 mm (1.7 in)
2010
37.1 mm (1.5 in)
2011
39.9 mm (1.6 in)
2012
88.9 mm (3.5 in)
2013
50.8 mm (2.0 in)
2014
33.5 mm (1.3 in)
2015
78.0 mm (3.1 in)
2016
50.8 mm (2.0 in)
2017
34.0 mm (1.3 in)
2018
61.0 mm (2.4 in)
2019
85.3 mm (3.4 in)
2020
50.8 mm (2.0 in)
2021
33.0 mm (1.3 in)
2022
22.9 mm (0.9 in)
Wettest five days (Rx5day)
The wettest five days of the year at Chulitna Rvr, 1971 to 2022. The record is 213.9 mm (8.4 in) in 1986, marked on the chart; the median year is 98.2 mm (3.9 in).
Wettest five days (Rx5day) at Chulitna Rvr by year
Year
Wettest five days (Rx5day)
1971
46.2 mm (1.8 in)
1972
97.1 mm (3.8 in)
1973
98.3 mm (3.9 in)
1974
101.6 mm (4.0 in)
1975
97.8 mm (3.9 in)
1976
38.1 mm (1.5 in)
1977
136.4 mm (5.4 in)
1978
64.3 mm (2.5 in)
1979
140.1 mm (5.5 in)
1980
138.1 mm (5.4 in)
1981
159.3 mm (6.3 in)
1982
106.6 mm (4.2 in)
1983
122.5 mm (4.8 in)
1984
77.3 mm (3.0 in)
1985
90.1 mm (3.5 in)
1986
213.9 mm (8.4 in)
1987
164.4 mm (6.5 in)
1988
82.5 mm (3.2 in)
1989
82.7 mm (3.3 in)
1990
164.1 mm (6.5 in)
1991
60.2 mm (2.4 in)
1992
64.0 mm (2.5 in)
1993
105.4 mm (4.1 in)
1994
57.1 mm (2.2 in)
1996
91.7 mm (3.6 in)
1997
76.3 mm (3.0 in)
1998
117.1 mm (4.6 in)
1999
129.3 mm (5.1 in)
2000
87.3 mm (3.4 in)
2001
83.9 mm (3.3 in)
2002
126.4 mm (5.0 in)
2003
126.0 mm (5.0 in)
2004
111.0 mm (4.4 in)
2005
123.3 mm (4.9 in)
2006
173.0 mm (6.8 in)
2007
106.7 mm (4.2 in)
2008
58.8 mm (2.3 in)
2009
92.0 mm (3.6 in)
2010
70.1 mm (2.8 in)
2011
114.4 mm (4.5 in)
2012
201.9 mm (7.9 in)
2013
98.2 mm (3.9 in)
2014
59.2 mm (2.3 in)
2015
189.5 mm (7.5 in)
2016
94.0 mm (3.7 in)
2017
58.9 mm (2.3 in)
2018
94.0 mm (3.7 in)
2019
115.9 mm (4.6 in)
2020
122.2 mm (4.8 in)
2021
63.5 mm (2.5 in)
2022
51.3 mm (2.0 in)
Longest dry spell (CDD)
The longest dry spell of the year at Chulitna Rvr, 1971 to 2022. The record is 59 days in 1993, marked on the chart; the median year is 25 days.
Longest dry spell (CDD) at Chulitna Rvr by year
Year
Longest dry spell (CDD)
1971
15 days
1972
40 days
1973
25 days
1974
35 days
1975
7 days
1976
7 days
1977
13 days
1978
29 days
1979
30 days
1980
38 days
1981
28 days
1982
22 days
1983
20 days
1984
16 days
1985
24 days
1986
35 days
1987
22 days
1988
21 days
1989
24 days
1990
24 days
1991
18 days
1992
26 days
1993
59 days
1994
29 days
1996
17 days
1997
30 days
1998
29 days
1999
26 days
2000
51 days
2001
20 days
2002
25 days
2003
21 days
2004
21 days
2005
26 days
2006
21 days
2007
22 days
2008
18 days
2009
38 days
2010
31 days
2011
17 days
2012
35 days
2013
21 days
2014
33 days
2015
21 days
2016
34 days
2017
29 days
2018
25 days
2019
15 days
2020
18 days
2021
26 days
2022
25 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
23 years with a frost
Across 23 years with a frost, the median last spring frost at Chulitna Rvr falls on 26 May and the median first autumn frost on 6 September, which leaves a median of 98 days between them.
Frost dates and growing season at Chulitna Rvr
Measure
Median, all years
Earliest period
Recent period (1972 to 2021)
Recent against earliest
Fitted trend
Last spring frost
26 May
n/a
26 May
n/a
n/a
First autumn frost
6 September
n/a
6 September
n/a
n/a
Growing days
98 days
n/a
98 days
n/a
n/a
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, 1972 to 2021
A day with at least 50.4 mm (2.0 in) of rain is expected about once in 2 years. A day with at least 94.8 mm (3.7 in) of rain is expected about once in 100 years.
Rainfall return levels at Chulitna Rvr: the daily rain expected about once in a given number of years
Expected about once in
A day with at least
Note
2 years
50.4 mm (2.0 in)
5 years
63.6 mm (2.5 in)
10 years
71.8 mm (2.8 in)
25 years
81.6 mm (3.2 in)
50 years
88.4 mm (3.5 in)
Longer than the 32 years of record
100 years
94.8 mm (3.7 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 1972 to 2021.
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: 102.4 mm (4.0 in) in 1986; 88.9 mm (3.5 in) in 2012; 71.4 mm (2.8 in) in 2003.
Download the Data
Data for Chulitna Rvr standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Chulitna Rvr 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.