Record envelope, standing records and threshold days for Healy (USC00503585), Alaska, United States, with 42 years of record.
Key Facts for Healy
Healy (USC00503585) is a weather station in Alaska, United States at 63.87 latitude and -148.99 longitude, 432 m (1,417 ft) above sea level.
The station reports from 1976 to 2017, 42 years of record.
1,464 records set at Healy still stand.
Records are tracked for tmax, tmin, prcp, snow, snwd: an element needs 30 years of data to be eligible.
Healy set a daily record snowfall of 10.9 cm (4.3 in) on 25 February 2017.
About the Station
Location: Alaska, United States, 63.87 latitude, -148.99 longitude.
Elevation: 432 m (1,417 ft).
Period of record: 1976 to 2017, 42 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 Healy. 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 Healy, with 2026 drawn through them
Month
Highest record high
Lowest record low
2026 highest maximum
2026 lowest minimum
Jan
11.1 C (52.0 F)
-48.9 C (-56.0 F)
n/a
n/a
Feb
15.0 C (59.0 F)
-46.1 C (-51.0 F)
n/a
n/a
Mar
17.8 C (64.0 F)
-40.0 C (-40.0 F)
n/a
n/a
Apr
20.6 C (69.1 F)
-31.7 C (-25.1 F)
n/a
n/a
May
29.4 C (84.9 F)
-15.6 C (3.9 F)
n/a
n/a
Jun
33.9 C (93.0 F)
-2.8 C (27.0 F)
n/a
n/a
Jul
32.2 C (90.0 F)
0.0 C (32.0 F)
n/a
n/a
Aug
32.2 C (90.0 F)
-6.7 C (19.9 F)
n/a
n/a
Sep
23.3 C (73.9 F)
-18.9 C (-2.0 F)
n/a
n/a
Oct
21.7 C (71.1 F)
-28.9 C (-20.0 F)
n/a
n/a
Nov
12.2 C (54.0 F)
-40.6 C (-41.1 F)
n/a
n/a
Dec
10.6 C (51.1 F)
-42.2 C (-44.0 F)
n/a
n/a
Which Years Hold Standing Records
1,464 standing records
Year with most
1,464 records at Healy still stand. 1985 holds the most, with 78.
Standing records at Healy by the year they were set
Year set
Standing records
1976
14
1977
30
1978
3
1979
31
1980
63
1981
65
1982
51
1983
24
1984
38
1985
78
1986
54
1987
22
1988
38
1989
52
1990
61
1991
35
1992
76
1993
41
1994
58
1995
72
1996
35
1997
47
1998
33
1999
47
2000
37
2001
35
2002
70
2003
46
2004
65
2007
1
2009
22
2010
24
2011
47
2012
17
2016
21
2017
11
All-Time Record Progression
1 new records
1 all-time records were set at Healy between 18 January 2017 and 18 January 2017. Each dot is a new record.
When Healy set new all-time records
Date
Kind
Detail
2017-01-18
Record low minimum temperature
Record low minimum temperature -48.9 C (-56.0 F)
Wettest Day of Each Month
Apr: 77.5 mm (3.1 in)
The wettest day on record for each calendar month at Healy. The most was 77.5 mm (3.1 in) on 27 April 2002.
Record daily precipitation for each month at Healy
Month
Record daily precipitation (mm)
Date
Jan
16.0 mm (0.6 in)
22 January 1980
Feb
14.0 mm (0.6 in)
10 February 1996
Mar
11.9 mm (0.5 in)
4 March 1990
Apr
77.5 mm (3.1 in)
27 April 2002
May
21.3 mm (0.8 in)
26 May 2004
Jun
40.1 mm (1.6 in)
2 June 2012
Jul
35.8 mm (1.4 in)
27 July 2003
Aug
57.2 mm (2.3 in)
18 August 1983
Sep
33.5 mm (1.3 in)
30 September 2000
Oct
20.8 mm (0.8 in)
7 October 1983
Nov
28.4 mm (1.1 in)
9 November 1992
Dec
24.9 mm (1.0 in)
28 December 1990
Period of Record Coverage
1976 to 2017
Complete yearUnder 90 percent of days
37 years of record at Healy, 1976 to 2017. 16 years have data for under 90 percent of days and are left out of rankings: 1976, 1977, 1978, 1979, 1981, 1982, 1983, 1984 and others.
Cooler than the station meanWarmer than the station mean
One stripe for each of 20 complete years at Healy, 1980 to 2011. Blue stripes are years cooler than the station's own mean of -1.1 C (30.0 F); red stripes are warmer. The coolest year was 1999, at -3.3 C (26.0 F), and the warmest was 2002, at 1.3 C (34.4 F). The strongest colour marks a difference of 2.5 C (4.5 F).
Annual mean temperature at Healy as warming stripes, 1980 to 2011
Year
Annual mean temperature
Difference from the station mean
1980
-1.8 C
-0.68 C
1986
-1.2 C
-0.08 C
1987
-0.1 C
+0.99 C
1988
-1.5 C
-0.42 C
1990
-2.2 C
-1.09 C
1991
-0.7 C
+0.43 C
1992
-2.9 C
-1.76 C
1993
1.2 C
+2.27 C
1995
-1.0 C
+0.12 C
1996
-3.3 C
-2.14 C
1997
-0.8 C
+0.31 C
1998
-1.1 C
+0.06 C
1999
-3.3 C
-2.21 C
2000
-0.1 C
+1.05 C
2001
-0.7 C
+0.42 C
2002
1.3 C
+2.45 C
2003
-0.2 C
+0.90 C
2004
0.1 C
+1.21 C
2010
-2.1 C
-0.95 C
2011
-2.0 C
-0.91 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 2017
Yearly extremes at Healy: 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)
1991
28.9 C (84.0 F)
37
Coldest night (TNn)
-48.9 C (-56.0 F)
2017
-38.9 C (-38.0 F)
37
Wettest day (Rx1day)
77.5 mm (3.1 in)
2002
24.1 mm (0.9 in)
37
Wettest five days (Rx5day)
87.1 mm (3.4 in)
2002
42.4 mm (1.7 in)
37
Longest dry spell (CDD)
60 days
1998
34 days
37
Hottest day (TXx)
The hottest day of the year at Healy, 1976 to 2017. The record is 33.9 C (93.0 F) in 1991, marked on the chart; the median year is 28.9 C (84.0 F).
Hottest day (TXx) at Healy by year
Year
Hottest day (TXx)
1976
12.2 C (54.0 F)
1977
32.2 C (90.0 F)
1978
20.0 C (68.0 F)
1979
27.2 C (81.0 F)
1980
26.7 C (80.1 F)
1981
26.1 C (79.0 F)
1982
28.9 C (84.0 F)
1983
30.0 C (86.0 F)
1984
26.1 C (79.0 F)
1985
27.8 C (82.0 F)
1986
30.0 C (86.0 F)
1987
31.7 C (89.1 F)
1988
27.2 C (81.0 F)
1989
28.3 C (82.9 F)
1990
31.1 C (88.0 F)
1991
33.9 C (93.0 F)
1992
27.8 C (82.0 F)
1993
29.4 C (84.9 F)
1994
32.2 C (90.0 F)
1995
30.6 C (87.1 F)
1996
27.2 C (81.0 F)
1997
30.6 C (87.1 F)
1998
28.9 C (84.0 F)
1999
30.6 C (87.1 F)
2000
27.8 C (82.0 F)
2001
26.7 C (80.1 F)
2002
29.4 C (84.9 F)
2003
29.4 C (84.9 F)
2004
30.6 C (87.1 F)
2005
3.9 C (39.0 F)
2007
27.8 C (82.0 F)
2009
32.2 C (90.0 F)
2010
28.9 C (84.0 F)
2011
26.1 C (79.0 F)
2012
28.3 C (82.9 F)
2016
30.6 C (87.1 F)
2017
6.7 C (44.1 F)
Coldest night (TNn)
The coldest night of the year at Healy, 1976 to 2017. The record is -48.9 C (-56.0 F) in 2017, marked on the chart; the median year is -38.9 C (-38.0 F).
Coldest night (TNn) at Healy by year
Year
Coldest night (TNn)
1976
-32.8 C (-27.0 F)
1977
-32.2 C (-26.0 F)
1978
-33.3 C (-27.9 F)
1979
-38.9 C (-38.0 F)
1980
-43.9 C (-47.0 F)
1981
-36.1 C (-33.0 F)
1982
-41.7 C (-43.1 F)
1983
-43.9 C (-47.0 F)
1984
-41.1 C (-42.0 F)
1985
-41.1 C (-42.0 F)
1986
-36.7 C (-34.1 F)
1987
-32.8 C (-27.0 F)
1988
-35.0 C (-31.0 F)
1989
-46.7 C (-52.1 F)
1990
-41.7 C (-43.1 F)
1991
-41.1 C (-42.0 F)
1992
-36.1 C (-33.0 F)
1993
-42.8 C (-45.0 F)
1994
-38.3 C (-36.9 F)
1995
-40.0 C (-40.0 F)
1996
-39.4 C (-38.9 F)
1997
-42.8 C (-45.0 F)
1998
-38.3 C (-36.9 F)
1999
-46.1 C (-51.0 F)
2000
-40.0 C (-40.0 F)
2001
-38.9 C (-38.0 F)
2002
-37.2 C (-35.0 F)
2003
-33.3 C (-27.9 F)
2004
-43.3 C (-45.9 F)
2005
-36.1 C (-33.0 F)
2007
-2.8 C (27.0 F)
2009
-33.3 C (-27.9 F)
2010
-37.8 C (-36.0 F)
2011
-36.1 C (-33.0 F)
2012
-40.6 C (-41.1 F)
2016
-39.4 C (-38.9 F)
2017
-48.9 C (-56.0 F)
Wettest day (Rx1day)
The wettest day of the year at Healy, 1976 to 2017. The record is 77.5 mm (3.1 in) in 2002, marked on the chart; the median year is 24.1 mm (0.9 in).
Wettest day (Rx1day) at Healy by year
Year
Wettest day (Rx1day)
1976
2.5 mm (0.10 in)
1977
31.8 mm (1.3 in)
1978
8.4 mm (0.33 in)
1979
25.9 mm (1.0 in)
1980
16.0 mm (0.6 in)
1981
23.4 mm (0.9 in)
1982
33.8 mm (1.3 in)
1983
57.2 mm (2.3 in)
1984
14.0 mm (0.6 in)
1985
21.6 mm (0.9 in)
1986
25.1 mm (1.0 in)
1987
20.6 mm (0.8 in)
1988
27.4 mm (1.1 in)
1989
41.9 mm (1.6 in)
1990
26.7 mm (1.1 in)
1991
24.1 mm (0.9 in)
1992
30.5 mm (1.2 in)
1993
17.8 mm (0.7 in)
1994
23.4 mm (0.9 in)
1995
36.8 mm (1.4 in)
1996
24.9 mm (1.0 in)
1997
22.6 mm (0.9 in)
1998
25.4 mm (1.0 in)
1999
20.8 mm (0.8 in)
2000
33.5 mm (1.3 in)
2001
19.6 mm (0.8 in)
2002
77.5 mm (3.1 in)
2003
35.8 mm (1.4 in)
2004
21.3 mm (0.8 in)
2005
7.6 mm (0.30 in)
2007
18.5 mm (0.7 in)
2009
14.7 mm (0.6 in)
2010
28.2 mm (1.1 in)
2011
19.0 mm (0.7 in)
2012
40.1 mm (1.6 in)
2016
29.2 mm (1.1 in)
2017
6.1 mm (0.24 in)
Wettest five days (Rx5day)
The wettest five days of the year at Healy, 1976 to 2017. The record is 87.1 mm (3.4 in) in 2002, marked on the chart; the median year is 42.4 mm (1.7 in).
Wettest five days (Rx5day) at Healy by year
Year
Wettest five days (Rx5day)
1976
2.5 mm (0.10 in)
1977
50.6 mm (2.0 in)
1978
23.7 mm (0.9 in)
1979
39.9 mm (1.6 in)
1980
29.5 mm (1.2 in)
1981
39.0 mm (1.5 in)
1982
76.4 mm (3.0 in)
1983
44.2 mm (1.7 in)
1984
29.8 mm (1.2 in)
1985
35.2 mm (1.4 in)
1986
35.5 mm (1.4 in)
1987
40.9 mm (1.6 in)
1988
48.8 mm (1.9 in)
1989
64.0 mm (2.5 in)
1990
47.5 mm (1.9 in)
1991
37.0 mm (1.5 in)
1992
54.8 mm (2.2 in)
1993
37.3 mm (1.5 in)
1994
55.2 mm (2.2 in)
1995
38.8 mm (1.5 in)
1996
38.5 mm (1.5 in)
1997
58.3 mm (2.3 in)
1998
50.3 mm (2.0 in)
1999
36.3 mm (1.4 in)
2000
45.5 mm (1.8 in)
2001
55.2 mm (2.2 in)
2002
87.1 mm (3.4 in)
2003
64.3 mm (2.5 in)
2004
43.7 mm (1.7 in)
2005
7.6 mm (0.30 in)
2007
26.4 mm (1.0 in)
2009
28.8 mm (1.1 in)
2010
42.7 mm (1.7 in)
2011
42.4 mm (1.7 in)
2012
51.8 mm (2.0 in)
2016
84.1 mm (3.3 in)
2017
9.4 mm (0.37 in)
Longest dry spell (CDD)
The longest dry spell of the year at Healy, 1976 to 2017. The record is 60 days in 1998, marked on the chart; the median year is 34 days.
Longest dry spell (CDD) at Healy by year
Year
Longest dry spell (CDD)
1976
29 days
1977
31 days
1978
34 days
1979
40 days
1980
37 days
1981
35 days
1982
22 days
1983
22 days
1984
21 days
1985
34 days
1986
28 days
1987
44 days
1988
56 days
1989
40 days
1990
50 days
1991
51 days
1992
30 days
1993
45 days
1994
47 days
1995
38 days
1996
29 days
1997
40 days
1998
60 days
1999
37 days
2000
44 days
2001
48 days
2002
34 days
2003
55 days
2004
26 days
2005
13 days
2007
11 days
2009
30 days
2010
37 days
2011
22 days
2012
20 days
2016
25 days
2017
20 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
20 years with a frost
Across 20 years with a frost, the median last spring frost at Healy falls on 22 May and the median first autumn frost on 31 August, which leaves a median of 101 days between them.
Frost dates and growing season at Healy
Measure
Median, all years
Earliest period
Recent period (1980 to 2011)
Recent against earliest
Fitted trend
Last spring frost
22 May
n/a
22 May
n/a
n/a
First autumn frost
31 August
n/a
31 August
n/a
n/a
Growing days
101 days
n/a
101 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.
Download the Data
Data for Healy standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Healy 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.