Record envelope, standing records and threshold days for Glenoma (USC00453177), Washington, United States, with 39 years of record.
Key Facts for Glenoma
Glenoma (USC00453177) is a weather station in Washington, United States at 46.52 latitude and -122.14 longitude, 256 m (840 ft) above sea level.
The station reports from 1966 to 2004, 39 years of record.
1,464 records set at Glenoma still stand.
Records are tracked for tmax, tmin, prcp, snow, snwd: an element needs 30 years of data to be eligible.
Glenoma set a daily record precipitation of 27.7 mm (1.1 in) on 28 May 2004.
About the Station
Location: Washington, United States, 46.52 latitude, -122.14 longitude.
Elevation: 256 m (840 ft).
Period of record: 1966 to 2004, 39 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 Glenoma. 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 Glenoma, with 2026 drawn through them
Month
Highest record high
Lowest record low
2026 highest maximum
2026 lowest minimum
Jan
20.0 C (68.0 F)
-15.6 C (3.9 F)
n/a
n/a
Feb
25.6 C (78.1 F)
-16.7 C (1.9 F)
n/a
n/a
Mar
24.4 C (75.9 F)
-11.7 C (10.9 F)
n/a
n/a
Apr
32.2 C (90.0 F)
-4.4 C (24.1 F)
n/a
n/a
May
39.4 C (102.9 F)
-2.2 C (28.0 F)
n/a
n/a
Jun
37.8 C (100.0 F)
-1.7 C (28.9 F)
n/a
n/a
Jul
38.9 C (102.0 F)
2.2 C (36.0 F)
n/a
n/a
Aug
40.0 C (104.0 F)
1.1 C (34.0 F)
n/a
n/a
Sep
42.2 C (108.0 F)
-2.8 C (27.0 F)
n/a
n/a
Oct
37.2 C (99.0 F)
-6.7 C (19.9 F)
n/a
n/a
Nov
25.0 C (77.0 F)
-14.4 C (6.1 F)
n/a
n/a
Dec
18.3 C (64.9 F)
-18.9 C (-2.0 F)
n/a
n/a
Which Years Hold Standing Records
1,464 standing records
Year with most
1,464 records at Glenoma still stand. 1972 holds the most, with 61.
Standing records at Glenoma by the year they were set
Year set
Standing records
1966
57
1967
44
1968
52
1969
50
1970
52
1971
50
1972
61
1973
44
1974
34
1975
42
1976
49
1977
36
1978
38
1979
44
1980
46
1981
42
1982
37
1983
34
1984
33
1985
45
1986
48
1987
52
1988
42
1989
35
1990
39
1991
31
1992
43
1993
26
1994
21
1995
27
1996
54
1997
16
1998
27
1999
20
2000
18
2001
16
2002
32
2003
15
2004
12
Wettest Day of Each Month
Dec: 136.9 mm (5.4 in)
The wettest day on record for each calendar month at Glenoma. The most was 136.9 mm (5.4 in) on 2 December 1977.
Record daily precipitation for each month at Glenoma
Month
Record daily precipitation (mm)
Date
Jan
82.6 mm (3.3 in)
29 January 2004
Feb
92.7 mm (3.6 in)
8 February 1996
Mar
50.5 mm (2.0 in)
28 March 1977
Apr
78.7 mm (3.1 in)
5 April 1991
May
40.1 mm (1.6 in)
8 May 1991
Jun
66.5 mm (2.6 in)
5 June 1974
Jul
39.4 mm (1.6 in)
3 July 1966
Aug
42.2 mm (1.7 in)
24 August 1977
Sep
49.5 mm (1.9 in)
30 September 2000
Oct
73.7 mm (2.9 in)
27 October 1994
Nov
106.4 mm (4.2 in)
24 November 1999
Dec
136.9 mm (5.4 in)
2 December 1977
Period of Record Coverage
1966 to 2004
Complete yearUnder 90 percent of days
39 years of record at Glenoma, 1966 to 2004. 6 years have data for under 90 percent of days and are left out of rankings: 1966, 1967, 1994, 1995, 2003, 2004.
Cooler than the station meanWarmer than the station mean
One stripe for each of 27 complete years at Glenoma, 1968 to 2000. Blue stripes are years cooler than the station's own mean of 10.1 C (50.1 F); red stripes are warmer. The coolest year was 1971, at 9.2 C (48.5 F), and the warmest was 1987, at 11.3 C (52.4 F). The strongest colour marks a difference of 1.3 C (2.3 F).
Annual mean temperature at Glenoma as warming stripes, 1968 to 2000
Year
Annual mean temperature
Difference from the station mean
1968
9.9 C
-0.18 C
1969
9.8 C
-0.23 C
1970
9.8 C
-0.21 C
1971
9.2 C
-0.89 C
1972
9.3 C
-0.73 C
1973
9.9 C
-0.15 C
1974
10.0 C
-0.09 C
1975
9.4 C
-0.68 C
1976
9.9 C
-0.20 C
1977
10.0 C
-0.05 C
1978
10.2 C
+0.18 C
1979
10.5 C
+0.49 C
1980
10.0 C
-0.01 C
1981
10.9 C
+0.87 C
1982
10.0 C
-0.07 C
1983
10.4 C
+0.37 C
1984
9.9 C
-0.17 C
1986
11.1 C
+1.01 C
1987
11.3 C
+1.29 C
1988
10.5 C
+0.40 C
1991
10.2 C
+0.13 C
1992
11.1 C
+1.06 C
1993
9.6 C
-0.46 C
1996
10.0 C
-0.05 C
1997
9.8 C
-0.22 C
1999
9.4 C
-0.69 C
2000
9.4 C
-0.64 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
1966 to 2004
Yearly extremes at Glenoma: the record and the median year
Measure
Record
Year of the record
Median year
Years with a value
Hottest day (TXx)
42.2 C (108.0 F)
1988
35.6 C (96.1 F)
39
Coldest night (TNn)
-18.9 C (-2.0 F)
1972
-9.4 C (15.1 F)
39
Wettest day (Rx1day)
136.9 mm (5.4 in)
1977
61.7 mm (2.4 in)
39
Wettest five days (Rx5day)
259.1 mm (10.2 in)
1996
140.0 mm (5.5 in)
39
Longest dry spell (CDD)
75 days
1998
31 days
39
Hottest day (TXx)
The hottest day of the year at Glenoma, 1966 to 2004. The record is 42.2 C (108.0 F) in 1988, marked on the chart; the median year is 35.6 C (96.1 F).
Hottest day (TXx) at Glenoma by year
Year
Hottest day (TXx)
1966
35.0 C (95.0 F)
1967
38.3 C (100.9 F)
1968
35.0 C (95.0 F)
1969
33.9 C (93.0 F)
1970
35.6 C (96.1 F)
1971
38.3 C (100.9 F)
1972
35.6 C (96.1 F)
1973
34.4 C (93.9 F)
1974
34.4 C (93.9 F)
1975
32.8 C (91.0 F)
1976
31.7 C (89.1 F)
1977
38.3 C (100.9 F)
1978
35.6 C (96.1 F)
1979
37.2 C (99.0 F)
1980
33.3 C (91.9 F)
1981
40.0 C (104.0 F)
1982
37.8 C (100.0 F)
1983
39.4 C (102.9 F)
1984
35.0 C (95.0 F)
1985
37.8 C (100.0 F)
1986
36.1 C (97.0 F)
1987
37.2 C (99.0 F)
1988
42.2 C (108.0 F)
1989
36.1 C (97.0 F)
1990
36.7 C (98.1 F)
1991
35.6 C (96.1 F)
1992
37.8 C (100.0 F)
1993
35.6 C (96.1 F)
1994
37.2 C (99.0 F)
1995
35.6 C (96.1 F)
1996
37.2 C (99.0 F)
1997
34.4 C (93.9 F)
1998
37.8 C (100.0 F)
1999
32.8 C (91.0 F)
2000
33.9 C (93.0 F)
2001
33.9 C (93.0 F)
2002
36.7 C (98.1 F)
2003
36.1 C (97.0 F)
2004
28.9 C (84.0 F)
Coldest night (TNn)
The coldest night of the year at Glenoma, 1966 to 2004. The record is -18.9 C (-2.0 F) in 1972, marked on the chart; the median year is -9.4 C (15.1 F).
Coldest night (TNn) at Glenoma by year
Year
Coldest night (TNn)
1966
-6.7 C (19.9 F)
1967
-8.3 C (17.1 F)
1968
-13.3 C (8.1 F)
1969
-11.1 C (12.0 F)
1970
-6.7 C (19.9 F)
1971
-11.7 C (10.9 F)
1972
-18.9 C (-2.0 F)
1973
-9.4 C (15.1 F)
1974
-12.8 C (9.0 F)
1975
-7.2 C (19.0 F)
1976
-7.8 C (18.0 F)
1977
-10.0 C (14.0 F)
1978
-13.9 C (7.0 F)
1979
-12.8 C (9.0 F)
1980
-13.3 C (8.1 F)
1981
-5.0 C (23.0 F)
1982
-15.6 C (3.9 F)
1983
-15.6 C (3.9 F)
1984
-9.4 C (15.1 F)
1985
-13.9 C (7.0 F)
1986
-5.0 C (23.0 F)
1987
-7.8 C (18.0 F)
1988
-8.3 C (17.1 F)
1989
-16.7 C (1.9 F)
1990
-17.8 C (0.0 F)
1991
-8.3 C (17.1 F)
1992
-6.7 C (19.9 F)
1993
-14.4 C (6.1 F)
1994
-9.4 C (15.1 F)
1995
-6.7 C (19.9 F)
1996
-9.4 C (15.1 F)
1997
-10.0 C (14.0 F)
1998
-13.3 C (8.1 F)
1999
-5.6 C (21.9 F)
2000
-7.8 C (18.0 F)
2001
-7.2 C (19.0 F)
2002
-7.8 C (18.0 F)
2003
-7.2 C (19.0 F)
2004
-10.0 C (14.0 F)
Wettest day (Rx1day)
The wettest day of the year at Glenoma, 1966 to 2004. The record is 136.9 mm (5.4 in) in 1977, marked on the chart; the median year is 61.7 mm (2.4 in).
Wettest day (Rx1day) at Glenoma by year
Year
Wettest day (Rx1day)
1966
41.9 mm (1.6 in)
1967
30.0 mm (1.2 in)
1968
76.5 mm (3.0 in)
1969
48.8 mm (1.9 in)
1970
56.6 mm (2.2 in)
1971
78.0 mm (3.1 in)
1972
60.2 mm (2.4 in)
1973
53.6 mm (2.1 in)
1974
66.5 mm (2.6 in)
1975
88.9 mm (3.5 in)
1976
60.7 mm (2.4 in)
1977
136.9 mm (5.4 in)
1978
39.6 mm (1.6 in)
1979
61.7 mm (2.4 in)
1980
55.9 mm (2.2 in)
1981
57.7 mm (2.3 in)
1982
73.4 mm (2.9 in)
1983
52.8 mm (2.1 in)
1984
71.1 mm (2.8 in)
1985
63.2 mm (2.5 in)
1986
67.8 mm (2.7 in)
1987
79.0 mm (3.1 in)
1988
43.2 mm (1.7 in)
1989
41.9 mm (1.6 in)
1990
85.1 mm (3.4 in)
1991
78.7 mm (3.1 in)
1992
41.9 mm (1.6 in)
1993
50.8 mm (2.0 in)
1994
73.7 mm (2.9 in)
1995
67.3 mm (2.6 in)
1996
92.7 mm (3.6 in)
1997
58.9 mm (2.3 in)
1998
61.7 mm (2.4 in)
1999
106.4 mm (4.2 in)
2000
49.5 mm (1.9 in)
2001
55.6 mm (2.2 in)
2002
49.3 mm (1.9 in)
2003
76.7 mm (3.0 in)
2004
82.6 mm (3.3 in)
Wettest five days (Rx5day)
The wettest five days of the year at Glenoma, 1966 to 2004. The record is 259.1 mm (10.2 in) in 1996, marked on the chart; the median year is 140.0 mm (5.5 in).
Wettest five days (Rx5day) at Glenoma by year
Year
Wettest five days (Rx5day)
1966
94.9 mm (3.7 in)
1967
106.1 mm (4.2 in)
1968
162.4 mm (6.4 in)
1969
139.5 mm (5.5 in)
1970
147.1 mm (5.8 in)
1971
171.8 mm (6.8 in)
1972
156.5 mm (6.2 in)
1973
123.3 mm (4.9 in)
1974
146.6 mm (5.8 in)
1975
231.6 mm (9.1 in)
1976
140.4 mm (5.5 in)
1977
211.9 mm (8.3 in)
1978
109.2 mm (4.3 in)
1979
127.2 mm (5.0 in)
1980
128.9 mm (5.1 in)
1981
139.2 mm (5.5 in)
1982
149.3 mm (5.9 in)
1983
180.9 mm (7.1 in)
1984
170.0 mm (6.7 in)
1985
108.9 mm (4.3 in)
1986
175.5 mm (6.9 in)
1987
141.8 mm (5.6 in)
1988
127.5 mm (5.0 in)
1989
95.3 mm (3.8 in)
1990
185.7 mm (7.3 in)
1991
131.6 mm (5.2 in)
1992
90.2 mm (3.6 in)
1993
111.8 mm (4.4 in)
1994
146.8 mm (5.8 in)
1995
112.3 mm (4.4 in)
1996
259.1 mm (10.2 in)
1997
140.0 mm (5.5 in)
1998
192.5 mm (7.6 in)
1999
182.4 mm (7.2 in)
2000
93.4 mm (3.7 in)
2001
124.5 mm (4.9 in)
2002
108.7 mm (4.3 in)
2003
138.2 mm (5.4 in)
2004
144.2 mm (5.7 in)
Longest dry spell (CDD)
The longest dry spell of the year at Glenoma, 1966 to 2004. The record is 75 days in 1998, marked on the chart; the median year is 31 days.
Longest dry spell (CDD) at Glenoma by year
Year
Longest dry spell (CDD)
1966
37 days
1967
36 days
1968
24 days
1969
24 days
1970
31 days
1971
41 days
1972
32 days
1973
58 days
1974
31 days
1975
20 days
1976
25 days
1977
42 days
1978
24 days
1979
32 days
1980
18 days
1981
25 days
1982
13 days
1983
15 days
1984
58 days
1985
45 days
1986
43 days
1987
31 days
1988
32 days
1989
16 days
1990
39 days
1991
45 days
1992
30 days
1993
18 days
1994
33 days
1995
18 days
1996
28 days
1997
21 days
1998
75 days
1999
18 days
2000
44 days
2001
23 days
2002
62 days
2003
39 days
2004
17 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
27 years with a frost
Across 27 years with a frost, the median last spring frost at Glenoma falls on 7 May and the median first autumn frost on 8 October, which leaves a median of 153 days between them.
Fitted over all years, the growing season changes by +0.8 days per decade at this station.
Frost dates and growing season at Glenoma
Measure
Median, all years
Earliest period
Recent period (1968 to 2000)
Recent against earliest
Fitted trend
Last spring frost
7 May
n/a
7 May
n/a
-1.7 days per decade
First autumn frost
8 October
n/a
8 October
n/a
-1.0 days per decade
Growing days
153 days
n/a
153 days
n/a
+0.8 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
33 years, 1968 to 2002
A day with at least 60.9 mm (2.4 in) of rain is expected about once in 2 years. A day with at least 140.7 mm (5.5 in) of rain is expected about once in 100 years.
Rainfall return levels at Glenoma: the daily rain expected about once in a given number of years
Expected about once in
A day with at least
Note
2 years
60.9 mm (2.4 in)
5 years
78.3 mm (3.1 in)
10 years
91.2 mm (3.6 in)
25 years
109.4 mm (4.3 in)
50 years
124.4 mm (4.9 in)
Longer than the 33 years of record
100 years
140.7 mm (5.5 in)
Longer than the 33 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, 33 years of values from 1968 to 2002.
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: 136.9 mm (5.4 in) in 1977; 106.4 mm (4.2 in) in 1999; 92.7 mm (3.6 in) in 1996.
Download the Data
Data for Glenoma standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Glenoma 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 2026-10-15 (15 October 2026). Records are computed by this site and are not official.