Record envelope, standing records and threshold days for Whittier (USC00509829), Alaska, United States, with 70 years of record.
Key Facts for Whittier
Whittier (USC00509829) is a weather station in Alaska, United States at 60.78 latitude and -148.69 longitude, 18 m (60 ft) above sea level.
The station reports from 1942 to 2011, 70 years of record.
1,464 records set at Whittier still stand.
Records are tracked for tmax, tmin, prcp, snow, snwd: an element needs 30 years of data to be eligible.
Whittier set a daily record high maximum temperature of 21.1 C (70.0 F) on 28 May 2011.
About the Station
Location: Alaska, United States, 60.78 latitude, -148.69 longitude.
Elevation: 18 m (60 ft).
Period of record: 1942 to 2011, 70 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 Whittier. 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 Whittier, with 2026 drawn through them
Month
Highest record high
Lowest record low
2026 highest maximum
2026 lowest minimum
Jan
12.2 C (54.0 F)
-27.8 C (-18.0 F)
n/a
n/a
Feb
11.7 C (53.1 F)
-26.1 C (-15.0 F)
n/a
n/a
Mar
12.2 C (54.0 F)
-20.6 C (-5.1 F)
n/a
n/a
Apr
18.9 C (66.0 F)
-15.0 C (5.0 F)
n/a
n/a
May
24.4 C (75.9 F)
-9.4 C (15.1 F)
n/a
n/a
Jun
27.8 C (82.0 F)
-3.9 C (25.0 F)
n/a
n/a
Jul
31.1 C (88.0 F)
1.7 C (35.1 F)
n/a
n/a
Aug
30.6 C (87.1 F)
1.1 C (34.0 F)
n/a
n/a
Sep
22.8 C (73.0 F)
-5.0 C (23.0 F)
n/a
n/a
Oct
21.7 C (71.1 F)
-17.8 C (0.0 F)
n/a
n/a
Nov
13.3 C (55.9 F)
-23.3 C (-9.9 F)
n/a
n/a
Dec
8.9 C (48.0 F)
-33.9 C (-29.0 F)
n/a
n/a
Which Years Hold Standing Records
1,464 standing records
Year with most
1,464 records at Whittier still stand. 1943 holds the most, with 91.
Standing records at Whittier by the year they were set
Year set
Standing records
1942
61
1943
91
1944
57
1945
39
1947
18
1948
42
1949
9
1950
10
1951
14
1952
24
1953
24
1954
19
1955
50
1956
51
1957
59
1958
31
1959
25
1960
30
1961
52
1962
54
1963
47
1964
11
1965
40
1966
20
1968
10
1969
11
1970
30
1971
1
1972
1
1973
3
1982
5
1983
26
1984
22
1985
32
1986
32
1987
9
1988
8
1989
33
1990
23
1991
12
1992
13
1993
36
1994
23
1995
28
1996
26
1997
23
1998
8
1999
12
2000
5
2001
6
2002
33
2003
24
2004
16
2005
20
2006
9
2007
11
2008
7
2009
12
2010
14
2011
2
All-Time Record Progression
2 new records
2 all-time records were set at Whittier between 20 September 1995 and 31 January 1998. Each dot is a new record.
When Whittier set new all-time records
Date
Kind
Detail
1995-09-20
Record daily precipitation
Record daily precipitation 277.4 mm (10.9 in)
1998-01-31
Record daily snowfall
Record daily snowfall 120.7 cm (47.5 in)
Wettest Day of Each Month
Sep: 277.4 mm (10.9 in)
The wettest day on record for each calendar month at Whittier. The most was 277.4 mm (10.9 in) on 20 September 1995.
Record daily precipitation for each month at Whittier
Month
Record daily precipitation (mm)
Date
Jan
199.4 mm (7.9 in)
31 January 2000
Feb
220.2 mm (8.7 in)
7 February 1986
Mar
167.4 mm (6.6 in)
20 March 1999
Apr
192.8 mm (7.6 in)
8 April 1959
May
144.0 mm (5.7 in)
16 May 1961
Jun
127.0 mm (5.0 in)
7 June 1965
Jul
99.8 mm (3.9 in)
28 July 1992
Aug
185.9 mm (7.3 in)
19 August 1984
Sep
277.4 mm (10.9 in)
20 September 1995
Oct
196.1 mm (7.7 in)
22 October 1987
Nov
148.3 mm (5.8 in)
18 November 1962
Dec
185.2 mm (7.3 in)
24 December 1987
Period of Record Coverage
1942 to 2011
Complete yearUnder 90 percent of days
60 years of record at Whittier, 1942 to 2011. 32 years have data for under 90 percent of days and are left out of rankings: 1942, 1947, 1949, 1950, 1953, 1954, 1960, 1964 and others.
Cooler than the station meanWarmer than the station mean
One stripe for each of 40 complete years at Whittier, 1943 to 2010. Blue stripes are years cooler than the station's own mean of 4.6 C (40.2 F); red stripes are warmer. The coolest year was 1961, at 1.8 C (35.2 F), and the warmest was 1993, at 6.2 C (43.2 F). The strongest colour marks a difference of 2.8 C (5.0 F).
Annual mean temperature at Whittier as warming stripes, 1943 to 2010
Year
Annual mean temperature
Difference from the station mean
1943
3.6 C
-0.99 C
1944
5.3 C
+0.76 C
1945
3.6 C
-0.98 C
1948
3.8 C
-0.77 C
1951
3.3 C
-1.27 C
1952
3.9 C
-0.65 C
1955
3.1 C
-1.47 C
1956
2.9 C
-1.69 C
1957
5.0 C
+0.45 C
1958
4.4 C
-0.16 C
1959
4.2 C
-0.39 C
1961
1.8 C
-2.77 C
1962
3.0 C
-1.56 C
1963
2.9 C
-1.68 C
1965
3.8 C
-0.77 C
1983
5.7 C
+1.14 C
1984
5.6 C
+0.98 C
1985
4.5 C
-0.03 C
1986
5.4 C
+0.83 C
1987
5.4 C
+0.82 C
1988
5.2 C
+0.66 C
1989
4.9 C
+0.30 C
1990
4.5 C
-0.10 C
1991
4.9 C
+0.34 C
1992
4.5 C
-0.09 C
1993
6.2 C
+1.67 C
1994
4.8 C
+0.26 C
1995
5.2 C
+0.59 C
1996
5.0 C
+0.42 C
1997
6.1 C
+1.53 C
1998
5.0 C
+0.41 C
2001
4.9 C
+0.29 C
2002
5.3 C
+0.76 C
2003
5.4 C
+0.83 C
2004
5.5 C
+0.94 C
2005
5.8 C
+1.24 C
2007
4.5 C
-0.09 C
2008
3.7 C
-0.89 C
2009
4.9 C
+0.28 C
2010
5.3 C
+0.74 C
The annual mean temperature here has risen by 0.3 C (0.2 to 0.4) per decade over 1943 to 2010. In Fahrenheit: 0.5 F (0.3 to 0.7) per decade. The slope is a straight line fitted to 40 complete years; the brackets give its 95 percent interval.
Fitted temperature trends per decade at Whittier
Measure
Per decade (C)
Per decade (F)
Period
Complete years
Reading
Annual mean temperature
0.3 C (0.2 to 0.4) per decade
0.5 F (0.3 to 0.7) per decade
1943 to 2010
40
Rise
Mean daily maximum
0.12 C (-0.02 to 0.26) per decade
0.22 F (-0.03 to 0.47) per decade
1943 to 2010
40
Not clearly different from zero
Mean daily minimum
0.4 C (0.3 to 0.6) per decade
0.8 F (0.6 to 1.0) per decade
1943 to 2010
40
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
1942 to 2011
Yearly extremes at Whittier: the record and the median year
Measure
Record
Year of the record
Median year
Years with a value
Hottest day (TXx)
31.1 C (88.0 F)
1966
24.2 C (75.5 F)
60
Coldest night (TNn)
-33.9 C (-29.0 F)
1942
-16.7 C (1.9 F)
60
Wettest day (Rx1day)
277.4 mm (10.9 in)
1995
132.5 mm (5.2 in)
60
Wettest five days (Rx5day)
615.9 mm (24.2 in)
1985
351.7 mm (13.8 in)
60
Longest dry spell (CDD)
34 days
1948
14 days
60
Hottest day (TXx)
The hottest day of the year at Whittier, 1942 to 2011. The record is 31.1 C (88.0 F) in 1966, marked on the chart; the median year is 24.2 C (75.5 F).
Hottest day (TXx) at Whittier by year
Year
Hottest day (TXx)
1942
24.4 C (75.9 F)
1943
26.1 C (79.0 F)
1944
28.9 C (84.0 F)
1945
24.4 C (75.9 F)
1947
26.1 C (79.0 F)
1948
23.3 C (73.9 F)
1949
24.4 C (75.9 F)
1950
12.2 C (54.0 F)
1951
26.7 C (80.1 F)
1952
25.0 C (77.0 F)
1953
28.3 C (82.9 F)
1954
23.9 C (75.0 F)
1955
25.6 C (78.1 F)
1956
26.7 C (80.1 F)
1957
30.6 C (87.1 F)
1958
22.2 C (72.0 F)
1959
26.1 C (79.0 F)
1960
25.6 C (78.1 F)
1961
22.2 C (72.0 F)
1962
23.9 C (75.0 F)
1963
23.9 C (75.0 F)
1964
4.4 C (39.9 F)
1965
25.6 C (78.1 F)
1966
31.1 C (88.0 F)
1968
26.1 C (79.0 F)
1969
24.4 C (75.9 F)
1970
25.0 C (77.0 F)
1971
23.9 C (75.0 F)
1972
23.9 C (75.0 F)
1973
19.4 C (66.9 F)
1982
15.0 C (59.0 F)
1983
22.2 C (72.0 F)
1984
25.0 C (77.0 F)
1985
23.3 C (73.9 F)
1986
23.9 C (75.0 F)
1987
23.3 C (73.9 F)
1988
20.0 C (68.0 F)
1989
23.9 C (75.0 F)
1990
25.6 C (78.1 F)
1991
22.2 C (72.0 F)
1992
22.2 C (72.0 F)
1993
25.0 C (77.0 F)
1994
22.8 C (73.0 F)
1995
23.9 C (75.0 F)
1996
23.3 C (73.9 F)
1997
26.7 C (80.1 F)
1998
22.2 C (72.0 F)
1999
26.1 C (79.0 F)
2000
22.2 C (72.0 F)
2001
23.9 C (75.0 F)
2002
25.6 C (78.1 F)
2003
24.4 C (75.9 F)
2004
27.2 C (81.0 F)
2005
25.6 C (78.1 F)
2006
23.9 C (75.0 F)
2007
25.6 C (78.1 F)
2008
23.3 C (73.9 F)
2009
26.1 C (79.0 F)
2010
21.1 C (70.0 F)
2011
22.2 C (72.0 F)
Coldest night (TNn)
The coldest night of the year at Whittier, 1942 to 2011. The record is -33.9 C (-29.0 F) in 1942, marked on the chart; the median year is -16.7 C (1.9 F).
Coldest night (TNn) at Whittier by year
Year
Coldest night (TNn)
1942
-33.9 C (-29.0 F)
1943
-26.1 C (-15.0 F)
1944
-20.6 C (-5.1 F)
1945
-20.0 C (-4.0 F)
1947
-7.8 C (18.0 F)
1948
-15.0 C (5.0 F)
1949
-7.2 C (19.0 F)
1950
-14.4 C (6.1 F)
1951
-20.0 C (-4.0 F)
1952
-23.9 C (-11.0 F)
1953
-18.3 C (-0.9 F)
1954
-21.1 C (-6.0 F)
1955
-21.7 C (-7.1 F)
1956
-19.4 C (-2.9 F)
1957
-28.3 C (-18.9 F)
1958
-22.2 C (-8.0 F)
1959
-22.2 C (-8.0 F)
1960
-17.8 C (0.0 F)
1961
-22.2 C (-8.0 F)
1962
-20.6 C (-5.1 F)
1963
-19.4 C (-2.9 F)
1964
-23.3 C (-9.9 F)
1965
-16.7 C (1.9 F)
1966
-20.0 C (-4.0 F)
1968
-23.3 C (-9.9 F)
1969
-17.8 C (0.0 F)
1970
-17.8 C (0.0 F)
1971
2.8 C (37.0 F)
1972
7.2 C (45.0 F)
1973
-4.4 C (24.1 F)
1982
-10.6 C (12.9 F)
1983
-20.0 C (-4.0 F)
1984
-16.7 C (1.9 F)
1985
-14.4 C (6.1 F)
1986
-15.0 C (5.0 F)
1987
-13.3 C (8.1 F)
1988
-14.4 C (6.1 F)
1989
-27.8 C (-18.0 F)
1990
-18.3 C (-0.9 F)
1991
-13.9 C (7.0 F)
1992
-16.1 C (3.0 F)
1993
-17.8 C (0.0 F)
1994
-16.7 C (1.9 F)
1995
-15.0 C (5.0 F)
1996
-13.9 C (7.0 F)
1997
-16.7 C (1.9 F)
1998
-15.0 C (5.0 F)
1999
-22.8 C (-9.0 F)
2000
-15.0 C (5.0 F)
2001
-15.6 C (3.9 F)
2002
-14.4 C (6.1 F)
2003
-15.6 C (3.9 F)
2004
-13.9 C (7.0 F)
2005
-13.3 C (8.1 F)
2006
-16.1 C (3.0 F)
2007
-17.2 C (1.0 F)
2008
-15.0 C (5.0 F)
2009
-16.7 C (1.9 F)
2010
-11.1 C (12.0 F)
2011
-15.6 C (3.9 F)
Wettest day (Rx1day)
The wettest day of the year at Whittier, 1942 to 2011. The record is 277.4 mm (10.9 in) in 1995, marked on the chart; the median year is 132.5 mm (5.2 in).
Wettest day (Rx1day) at Whittier by year
Year
Wettest day (Rx1day)
1942
99.1 mm (3.9 in)
1943
102.6 mm (4.0 in)
1944
117.1 mm (4.6 in)
1945
104.6 mm (4.1 in)
1947
142.0 mm (5.6 in)
1948
190.0 mm (7.5 in)
1949
97.0 mm (3.8 in)
1950
76.2 mm (3.0 in)
1951
91.7 mm (3.6 in)
1952
123.2 mm (4.9 in)
1953
121.9 mm (4.8 in)
1954
101.3 mm (4.0 in)
1955
123.7 mm (4.9 in)
1956
146.1 mm (5.8 in)
1957
172.7 mm (6.8 in)
1958
147.3 mm (5.8 in)
1959
192.8 mm (7.6 in)
1960
124.5 mm (4.9 in)
1961
144.0 mm (5.7 in)
1962
148.3 mm (5.8 in)
1963
123.4 mm (4.9 in)
1964
27.7 mm (1.1 in)
1965
127.0 mm (5.0 in)
1966
156.2 mm (6.1 in)
1968
76.7 mm (3.0 in)
1969
158.8 mm (6.3 in)
1970
111.5 mm (4.4 in)
1971
47.5 mm (1.9 in)
1972
82.6 mm (3.3 in)
1973
42.7 mm (1.7 in)
1982
163.1 mm (6.4 in)
1983
139.2 mm (5.5 in)
1984
185.9 mm (7.3 in)
1985
149.4 mm (5.9 in)
1986
220.2 mm (8.7 in)
1987
196.1 mm (7.7 in)
1988
181.1 mm (7.1 in)
1989
165.4 mm (6.5 in)
1990
119.9 mm (4.7 in)
1991
109.7 mm (4.3 in)
1992
136.4 mm (5.4 in)
1993
173.2 mm (6.8 in)
1994
132.1 mm (5.2 in)
1995
277.4 mm (10.9 in)
1996
94.7 mm (3.7 in)
1997
113.5 mm (4.5 in)
1998
133.4 mm (5.3 in)
1999
167.4 mm (6.6 in)
2000
199.4 mm (7.9 in)
2001
162.1 mm (6.4 in)
2002
161.0 mm (6.3 in)
2003
146.6 mm (5.8 in)
2004
127.0 mm (5.0 in)
2005
116.3 mm (4.6 in)
2006
116.1 mm (4.6 in)
2007
132.8 mm (5.2 in)
2008
179.1 mm (7.1 in)
2009
102.9 mm (4.1 in)
2010
161.3 mm (6.4 in)
2011
112.5 mm (4.4 in)
Wettest five days (Rx5day)
The wettest five days of the year at Whittier, 1942 to 2011. The record is 615.9 mm (24.2 in) in 1985, marked on the chart; the median year is 351.7 mm (13.8 in).
Wettest five days (Rx5day) at Whittier by year
Year
Wettest five days (Rx5day)
1942
288.4 mm (11.4 in)
1943
253.2 mm (10.0 in)
1944
292.5 mm (11.5 in)
1945
360.7 mm (14.2 in)
1947
474.0 mm (18.7 in)
1948
425.7 mm (16.8 in)
1949
189.0 mm (7.4 in)
1950
144.6 mm (5.7 in)
1951
268.5 mm (10.6 in)
1952
367.0 mm (14.4 in)
1953
392.0 mm (15.4 in)
1954
321.0 mm (12.6 in)
1955
261.9 mm (10.3 in)
1956
298.6 mm (11.8 in)
1957
380.5 mm (15.0 in)
1958
283.4 mm (11.2 in)
1959
455.5 mm (17.9 in)
1960
314.3 mm (12.4 in)
1961
473.4 mm (18.6 in)
1962
283.3 mm (11.2 in)
1963
295.7 mm (11.6 in)
1964
39.1 mm (1.5 in)
1965
352.9 mm (13.9 in)
1966
372.5 mm (14.7 in)
1968
198.9 mm (7.8 in)
1969
413.3 mm (16.3 in)
1970
326.1 mm (12.8 in)
1971
134.5 mm (5.3 in)
1972
194.4 mm (7.7 in)
1973
158.8 mm (6.3 in)
1982
515.4 mm (20.3 in)
1983
484.6 mm (19.1 in)
1984
486.1 mm (19.1 in)
1985
615.9 mm (24.2 in)
1986
453.1 mm (17.8 in)
1987
420.6 mm (16.6 in)
1988
360.4 mm (14.2 in)
1989
385.4 mm (15.2 in)
1990
341.6 mm (13.4 in)
1991
326.0 mm (12.8 in)
1992
350.5 mm (13.8 in)
1993
246.8 mm (9.7 in)
1994
378.5 mm (14.9 in)
1995
527.1 mm (20.8 in)
1996
238.6 mm (9.4 in)
1997
350.3 mm (13.8 in)
1998
355.6 mm (14.0 in)
1999
311.4 mm (12.3 in)
2000
413.8 mm (16.3 in)
2001
363.3 mm (14.3 in)
2002
433.7 mm (17.1 in)
2003
367.1 mm (14.5 in)
2004
316.9 mm (12.5 in)
2005
331.0 mm (13.0 in)
2006
323.9 mm (12.8 in)
2007
442.1 mm (17.4 in)
2008
541.9 mm (21.3 in)
2009
359.4 mm (14.1 in)
2010
363.2 mm (14.3 in)
2011
262.4 mm (10.3 in)
Longest dry spell (CDD)
The longest dry spell of the year at Whittier, 1942 to 2011. The record is 34 days in 1948, marked on the chart; the median year is 14 days.
Longest dry spell (CDD) at Whittier by year
Year
Longest dry spell (CDD)
1942
14 days
1943
19 days
1944
11 days
1945
7 days
1947
9 days
1948
34 days
1949
11 days
1950
20 days
1951
17 days
1952
11 days
1953
20 days
1954
29 days
1955
14 days
1956
16 days
1957
13 days
1958
14 days
1959
17 days
1960
10 days
1961
14 days
1962
16 days
1963
15 days
1964
8 days
1965
14 days
1966
13 days
1968
13 days
1969
17 days
1970
14 days
1971
3 days
1972
4 days
1973
6 days
1982
8 days
1983
9 days
1984
12 days
1985
13 days
1986
10 days
1987
19 days
1988
7 days
1989
22 days
1990
12 days
1991
10 days
1992
16 days
1993
13 days
1994
20 days
1995
18 days
1996
24 days
1997
17 days
1998
12 days
1999
12 days
2000
14 days
2001
20 days
2002
21 days
2003
12 days
2004
16 days
2005
16 days
2006
16 days
2007
18 days
2008
13 days
2009
17 days
2010
17 days
2011
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
40 years with a frost
Across 40 years with a frost, the median last spring frost at Whittier falls on 25 April and the median first autumn frost on 11 October, which leaves a median of 164 days between them.
Fitted over all years, the growing season changes by +8.4 days per decade at this station.
Frost dates and growing season at Whittier
Measure
Median, all years
Earliest period
Recent period (1959 to 2010)
Recent against earliest
Fitted trend
Last spring frost
25 April
n/a
21 April
n/a
-6.2 days per decade
First autumn frost
11 October
n/a
12 October
n/a
+2.2 days per decade
Growing days
164 days
n/a
171 days
n/a
+8.4 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
42 years, 1944 to 2010
A day with at least 144.5 mm (5.7 in) of rain is expected about once in 2 years. A day with at least 262.8 mm (10.3 in) of rain is expected about once in 100 years.
Rainfall return levels at Whittier: the daily rain expected about once in a given number of years
Expected about once in
A day with at least
Note
2 years
144.5 mm (5.7 in)
5 years
177.2 mm (7.0 in)
10 years
198.5 mm (7.8 in)
25 years
224.8 mm (8.9 in)
50 years
244.0 mm (9.6 in)
Longer than the 42 years of record
100 years
262.8 mm (10.3 in)
Longer than the 42 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, 42 years of values from 1944 to 2010.
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: 277.4 mm (10.9 in) in 1995; 220.2 mm (8.7 in) in 1986; 199.4 mm (7.9 in) in 2000.
Station Changes
No change in the annual mean temperature of this station was found against its neighbours.
Download the Data
Data for Whittier standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Whittier 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.