Record envelope, standing records and threshold days for Bellingham 3 SSW (USC00450587), Washington, United States, with 40 years of record.
Key Facts for Bellingham 3 SSW
Bellingham 3 SSW (USC00450587) is a weather station in Washington, United States at 48.72 latitude and -122.51 longitude, 10 m (32 ft) above sea level.
The station reports from 1985 to 2024, 40 years of record.
1,464 records set at Bellingham 3 SSW still stand.
Records are tracked for tmax, tmin, prcp: an element needs 30 years of data to be eligible.
Bellingham 3 SSW set a daily record precipitation of 6.6 mm (0.26 in) on 23 August 2024.
About the Station
Location: Washington, United States, 48.72 latitude, -122.51 longitude.
Elevation: 10 m (32 ft).
Period of record: 1985 to 2024, 40 years.
Eligible elements: tmax, tmin, prcp.
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 Bellingham 3 SSW. 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 Bellingham 3 SSW, with 2026 drawn through them
Month
Highest record high
Lowest record low
2026 highest maximum
2026 lowest minimum
Jan
18.3 C (64.9 F)
-12.8 C (9.0 F)
n/a
n/a
Feb
18.9 C (66.0 F)
-15.0 C (5.0 F)
n/a
n/a
Mar
25.6 C (78.1 F)
-8.3 C (17.1 F)
n/a
n/a
Apr
26.1 C (79.0 F)
-4.4 C (24.1 F)
n/a
n/a
May
30.0 C (86.0 F)
-1.1 C (30.0 F)
n/a
n/a
Jun
30.0 C (86.0 F)
2.8 C (37.0 F)
n/a
n/a
Jul
33.3 C (91.9 F)
5.0 C (41.0 F)
n/a
n/a
Aug
32.8 C (91.0 F)
6.1 C (43.0 F)
n/a
n/a
Sep
29.4 C (84.9 F)
2.2 C (36.0 F)
n/a
n/a
Oct
23.9 C (75.0 F)
-5.0 C (23.0 F)
n/a
n/a
Nov
23.9 C (75.0 F)
-15.6 C (3.9 F)
n/a
n/a
Dec
19.4 C (66.9 F)
-16.1 C (3.0 F)
n/a
n/a
Which Years Hold Standing Records
1,464 standing records
Year with most
1,464 records at Bellingham 3 SSW still stand. 1986 holds the most, with 68.
Standing records at Bellingham 3 SSW by the year they were set
Year set
Standing records
1985
43
1986
68
1987
31
1988
36
1989
36
1990
38
1991
34
1992
58
1993
42
1994
37
1995
37
1996
53
1997
28
1998
28
1999
26
2000
18
2001
24
2002
50
2003
27
2004
35
2005
38
2006
33
2007
28
2008
39
2009
38
2010
35
2011
38
2012
36
2013
25
2014
43
2015
44
2016
38
2017
37
2018
34
2019
32
2020
35
2021
55
2022
23
2023
64
All-Time Record Progression
2 new records
2 all-time records were set at Bellingham 3 SSW between 15 November 2021 and 27 December 2021. Each dot is a new record.
When Bellingham 3 SSW set new all-time records
Date
Kind
Detail
2021-11-15
Record daily precipitation
Record daily precipitation 82.8 mm (3.3 in)
2021-12-27
Record low minimum temperature
Record low minimum temperature -16.1 C (3.0 F)
Wettest Day of Each Month
Nov: 82.8 mm (3.3 in)
The wettest day on record for each calendar month at Bellingham 3 SSW. The most was 82.8 mm (3.3 in) on 15 November 2021.
Record daily precipitation for each month at Bellingham 3 SSW
Month
Record daily precipitation (mm)
Date
Jan
65.8 mm (2.6 in)
5 January 2015
Feb
49.0 mm (1.9 in)
15 February 2016
Mar
45.7 mm (1.8 in)
30 March 1999
Apr
38.6 mm (1.5 in)
14 April 2000
May
40.4 mm (1.6 in)
28 May 2010
Jun
31.2 mm (1.2 in)
10 June 1988
Jul
38.4 mm (1.5 in)
5 July 1992
Aug
47.5 mm (1.9 in)
21 August 1989
Sep
58.9 mm (2.3 in)
16 September 1987
Oct
69.9 mm (2.8 in)
17 October 2009
Nov
82.8 mm (3.3 in)
15 November 2021
Dec
55.9 mm (2.2 in)
12 December 2010
Period of Record Coverage
1985 to 2023
Complete yearUnder 90 percent of days
39 years of record at Bellingham 3 SSW, 1985 to 2023. 2 years have data for under 90 percent of days and are left out of rankings: 1985, 2023.
Cooler than the station meanWarmer than the station mean
One stripe for each of 36 complete years at Bellingham 3 SSW, 1986 to 2022. Blue stripes are years cooler than the station's own mean of 11.0 C (51.7 F); red stripes are warmer. The coolest year was 2008, at 10.0 C (50.1 F), and the warmest was 2016, at 12.0 C (53.6 F). The strongest colour marks a difference of 1.1 C (2.0 F).
Annual mean temperature at Bellingham 3 SSW as warming stripes, 1986 to 2022
Year
Annual mean temperature
Difference from the station mean
1986
11.0 C
+0.06 C
1987
11.3 C
+0.32 C
1988
10.8 C
-0.20 C
1989
10.5 C
-0.49 C
1990
10.8 C
-0.15 C
1991
10.9 C
-0.11 C
1992
12.0 C
+0.99 C
1993
11.3 C
+0.30 C
1994
11.6 C
+0.63 C
1995
11.5 C
+0.56 C
1996
10.3 C
-0.71 C
1997
11.5 C
+0.49 C
1998
11.7 C
+0.71 C
1999
10.7 C
-0.31 C
2000
10.6 C
-0.36 C
2001
10.6 C
-0.33 C
2002
10.8 C
-0.18 C
2003
11.5 C
+0.53 C
2004
11.8 C
+0.81 C
2005
11.4 C
+0.38 C
2006
11.1 C
+0.11 C
2007
10.7 C
-0.30 C
2008
10.0 C
-0.94 C
2009
10.4 C
-0.56 C
2010
11.1 C
+0.11 C
2012
10.4 C
-0.55 C
2013
10.5 C
-0.44 C
2014
11.4 C
+0.44 C
2015
11.8 C
+0.84 C
2016
12.0 C
+1.03 C
2017
10.9 C
-0.11 C
2018
11.5 C
+0.55 C
2019
10.4 C
-0.58 C
2020
10.2 C
-0.80 C
2021
10.1 C
-0.91 C
2022
10.1 C
-0.84 C
The fitted trend in annual mean temperature here over 1986 to 2022 is -0.1 C (-0.3 to 0.1) per decade. The interval includes zero, so the trend is not clearly different from zero. In Fahrenheit: -0.2 F (-0.5 to 0.1) per decade. The slope is a straight line fitted to 36 complete years; the brackets give its 95 percent interval.
Fitted temperature trends per decade at Bellingham 3 SSW
Measure
Per decade (C)
Per decade (F)
Period
Complete years
Reading
Annual mean temperature
-0.1 C (-0.3 to 0.1) per decade
-0.2 F (-0.5 to 0.1) per decade
1986 to 2022
36
Not clearly different from zero
Mean daily maximum
0.02 C (-0.18 to 0.23) per decade
0.04 F (-0.33 to 0.41) per decade
1986 to 2022
36
Not clearly different from zero
Mean daily minimum
-0.3 C (-0.4 to -0.1) per decade
-0.5 F (-0.8 to -0.2) per decade
1986 to 2022
36
Fall
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
1985 to 2024
Yearly extremes at Bellingham 3 SSW: 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)
2009
29.4 C (84.9 F)
39
Coldest night (TNn)
-16.1 C (3.0 F)
2021
-9.4 C (15.1 F)
39
Wettest day (Rx1day)
82.8 mm (3.3 in)
2021
38.9 mm (1.5 in)
40
Wettest five days (Rx5day)
163.9 mm (6.5 in)
2021
80.4 mm (3.2 in)
40
Longest dry spell (CDD)
79 days
2017
28 days
40
Hottest day (TXx)
The hottest day of the year at Bellingham 3 SSW, 1985 to 2024. The record is 33.3 C (91.9 F) in 2009, marked on the chart; the median year is 29.4 C (84.9 F).
Hottest day (TXx) at Bellingham 3 SSW by year
Year
Hottest day (TXx)
1985
28.9 C (84.0 F)
1986
28.9 C (84.0 F)
1987
28.3 C (82.9 F)
1988
32.2 C (90.0 F)
1989
28.3 C (82.9 F)
1990
32.8 C (91.0 F)
1991
27.8 C (82.0 F)
1992
26.7 C (80.1 F)
1993
29.4 C (84.9 F)
1994
28.9 C (84.0 F)
1995
28.9 C (84.0 F)
1996
28.9 C (84.0 F)
1997
29.4 C (84.9 F)
1998
32.2 C (90.0 F)
1999
26.7 C (80.1 F)
2000
27.8 C (82.0 F)
2001
27.8 C (82.0 F)
2002
30.0 C (86.0 F)
2003
29.4 C (84.9 F)
2004
32.2 C (90.0 F)
2005
30.0 C (86.0 F)
2006
29.4 C (84.9 F)
2007
28.9 C (84.0 F)
2008
28.3 C (82.9 F)
2009
33.3 C (91.9 F)
2010
30.6 C (87.1 F)
2011
26.1 C (79.0 F)
2012
31.1 C (88.0 F)
2013
30.0 C (86.0 F)
2014
28.9 C (84.0 F)
2015
30.0 C (86.0 F)
2016
30.6 C (87.1 F)
2017
29.4 C (84.9 F)
2018
31.1 C (88.0 F)
2019
27.2 C (81.0 F)
2020
29.4 C (84.9 F)
2021
30.0 C (86.0 F)
2022
29.4 C (84.9 F)
2023
23.9 C (75.0 F)
2024
n/a
Coldest night (TNn)
The coldest night of the year at Bellingham 3 SSW, 1985 to 2024. The record is -16.1 C (3.0 F) in 2021, marked on the chart; the median year is -9.4 C (15.1 F).
Coldest night (TNn) at Bellingham 3 SSW by year
Year
Coldest night (TNn)
1985
-15.6 C (3.9 F)
1986
-10.6 C (12.9 F)
1987
-5.0 C (23.0 F)
1988
-7.8 C (18.0 F)
1989
-15.0 C (5.0 F)
1990
-14.4 C (6.1 F)
1991
-7.2 C (19.0 F)
1992
-7.2 C (19.0 F)
1993
-8.3 C (17.1 F)
1994
-7.8 C (18.0 F)
1995
-6.7 C (19.9 F)
1996
-12.8 C (9.0 F)
1997
-8.3 C (17.1 F)
1998
-10.0 C (14.0 F)
1999
-3.3 C (26.1 F)
2000
-6.1 C (21.0 F)
2001
-4.4 C (24.1 F)
2002
-7.2 C (19.0 F)
2003
-5.6 C (21.9 F)
2004
-12.2 C (10.0 F)
2005
-9.4 C (15.1 F)
2006
-11.7 C (10.9 F)
2007
-9.4 C (15.1 F)
2008
-14.4 C (6.1 F)
2009
-8.3 C (17.1 F)
2010
-10.6 C (12.9 F)
2011
-9.4 C (15.1 F)
2012
-10.6 C (12.9 F)
2013
-11.1 C (12.0 F)
2014
-11.7 C (10.9 F)
2015
-6.7 C (19.9 F)
2016
-9.4 C (15.1 F)
2017
-9.4 C (15.1 F)
2018
-6.1 C (21.0 F)
2019
-10.0 C (14.0 F)
2020
-9.4 C (15.1 F)
2021
-16.1 C (3.0 F)
2022
-12.2 C (10.0 F)
2023
-8.3 C (17.1 F)
2024
n/a
Wettest day (Rx1day)
The wettest day of the year at Bellingham 3 SSW, 1985 to 2024. The record is 82.8 mm (3.3 in) in 2021, marked on the chart; the median year is 38.9 mm (1.5 in).
Wettest day (Rx1day) at Bellingham 3 SSW by year
Year
Wettest day (Rx1day)
1985
47.5 mm (1.9 in)
1986
45.5 mm (1.8 in)
1987
58.9 mm (2.3 in)
1988
38.4 mm (1.5 in)
1989
51.6 mm (2.0 in)
1990
69.3 mm (2.7 in)
1991
37.1 mm (1.5 in)
1992
48.5 mm (1.9 in)
1993
27.4 mm (1.1 in)
1994
27.2 mm (1.1 in)
1995
35.3 mm (1.4 in)
1996
38.9 mm (1.5 in)
1997
24.9 mm (1.0 in)
1998
33.8 mm (1.3 in)
1999
45.7 mm (1.8 in)
2000
38.6 mm (1.5 in)
2001
32.0 mm (1.3 in)
2002
29.2 mm (1.1 in)
2003
67.1 mm (2.6 in)
2004
51.3 mm (2.0 in)
2005
28.4 mm (1.1 in)
2006
58.4 mm (2.3 in)
2007
45.5 mm (1.8 in)
2008
25.7 mm (1.0 in)
2009
69.9 mm (2.8 in)
2010
55.9 mm (2.2 in)
2011
38.9 mm (1.5 in)
2012
39.4 mm (1.6 in)
2013
29.2 mm (1.1 in)
2014
36.6 mm (1.4 in)
2015
65.8 mm (2.6 in)
2016
49.0 mm (1.9 in)
2017
36.1 mm (1.4 in)
2018
39.1 mm (1.5 in)
2019
32.8 mm (1.3 in)
2020
35.6 mm (1.4 in)
2021
82.8 mm (3.3 in)
2022
50.8 mm (2.0 in)
2023
33.5 mm (1.3 in)
2024
22.4 mm (0.9 in)
Wettest five days (Rx5day)
The wettest five days of the year at Bellingham 3 SSW, 1985 to 2024. The record is 163.9 mm (6.5 in) in 2021, marked on the chart; the median year is 80.4 mm (3.2 in).
Wettest five days (Rx5day) at Bellingham 3 SSW by year
Year
Wettest five days (Rx5day)
1985
89.4 mm (3.5 in)
1986
79.6 mm (3.1 in)
1987
70.6 mm (2.8 in)
1988
89.0 mm (3.5 in)
1989
103.5 mm (4.1 in)
1990
150.2 mm (5.9 in)
1991
64.8 mm (2.6 in)
1992
58.9 mm (2.3 in)
1993
44.7 mm (1.8 in)
1994
51.6 mm (2.0 in)
1995
94.2 mm (3.7 in)
1996
79.5 mm (3.1 in)
1997
69.0 mm (2.7 in)
1998
90.4 mm (3.6 in)
1999
75.7 mm (3.0 in)
2000
52.3 mm (2.1 in)
2001
89.5 mm (3.5 in)
2002
73.6 mm (2.9 in)
2003
128.0 mm (5.0 in)
2004
97.2 mm (3.8 in)
2005
92.0 mm (3.6 in)
2006
112.0 mm (4.4 in)
2007
91.0 mm (3.6 in)
2008
69.1 mm (2.7 in)
2009
102.7 mm (4.0 in)
2010
101.5 mm (4.0 in)
2011
58.2 mm (2.3 in)
2012
80.7 mm (3.2 in)
2013
63.0 mm (2.5 in)
2014
83.3 mm (3.3 in)
2015
129.7 mm (5.1 in)
2016
91.2 mm (3.6 in)
2017
71.9 mm (2.8 in)
2018
73.2 mm (2.9 in)
2019
66.8 mm (2.6 in)
2020
80.1 mm (3.2 in)
2021
163.9 mm (6.5 in)
2022
92.1 mm (3.6 in)
2023
76.3 mm (3.0 in)
2024
42.3 mm (1.7 in)
Longest dry spell (CDD)
The longest dry spell of the year at Bellingham 3 SSW, 1985 to 2024. The record is 79 days in 2017, marked on the chart; the median year is 28 days.
Longest dry spell (CDD) at Bellingham 3 SSW by year
Year
Longest dry spell (CDD)
1985
27 days
1986
52 days
1987
34 days
1988
33 days
1989
34 days
1990
46 days
1991
32 days
1992
15 days
1993
20 days
1994
40 days
1995
29 days
1996
24 days
1997
41 days
1998
32 days
1999
19 days
2000
14 days
2001
17 days
2002
28 days
2003
28 days
2004
30 days
2005
17 days
2006
28 days
2007
26 days
2008
28 days
2009
24 days
2010
32 days
2011
21 days
2012
32 days
2013
19 days
2014
19 days
2015
22 days
2016
28 days
2017
79 days
2018
52 days
2019
21 days
2020
27 days
2021
50 days
2022
43 days
2023
35 days
2024
14 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
36 years with a frost
Across 36 years with a frost, the median last spring frost at Bellingham 3 SSW falls on 2 April and the median first autumn frost on 5 November, which leaves a median of 218 days between them.
Fitted over all years, the growing season changes by -5.4 days per decade at this station.
Frost dates and growing season at Bellingham 3 SSW
Measure
Median, all years
Earliest period
Recent period (1992 to 2022)
Recent against earliest
Fitted trend
Last spring frost
2 April
n/a
3 April
n/a
+0.7 days per decade
First autumn frost
5 November
n/a
4 November
n/a
-4.7 days per decade
Growing days
218 days
n/a
218 days
n/a
-5.4 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
38 years, 1986 to 2023
A day with at least 40.5 mm (1.6 in) of rain is expected about once in 2 years. A day with at least 94.7 mm (3.7 in) of rain is expected about once in 100 years.
Rainfall return levels at Bellingham 3 SSW: the daily rain expected about once in a given number of years
Expected about once in
A day with at least
Note
2 years
40.5 mm (1.6 in)
5 years
53.4 mm (2.1 in)
10 years
62.5 mm (2.5 in)
25 years
74.9 mm (2.9 in)
50 years
84.6 mm (3.3 in)
Longer than the 38 years of record
100 years
94.7 mm (3.7 in)
Longer than the 38 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, 38 years of values from 1986 to 2023.
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: 82.8 mm (3.3 in) in 2021; 69.9 mm (2.8 in) in 2009; 69.3 mm (2.7 in) in 1990.
Download the Data
Data for Bellingham 3 SSW standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Bellingham 3 SSW 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.