Record envelope, standing records and threshold days for Marietta 3 NNW (USC00455028), Washington, United States, with 46 years of record.
Key Facts for Marietta 3 NNW
Marietta 3 NNW (USC00455028) is a weather station in Washington, United States at 48.83 latitude and -122.60 longitude, 6 m (20 ft) above sea level.
The station reports from 1913 to 1958, 46 years of record.
1,464 records set at Marietta 3 NNW still stand.
Records are tracked for tmax, tmin, prcp: an element needs 30 years of data to be eligible.
Marietta 3 NNW tied a daily record high minimum temperature of 13.9 C (57.0 F) on 10 July 1958.
About the Station
Location: Washington, United States, 48.83 latitude, -122.60 longitude.
Elevation: 6 m (20 ft).
Period of record: 1913 to 1958, 46 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 Marietta 3 NNW. 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 Marietta 3 NNW, with 2026 drawn through them
Month
Highest record high
Lowest record low
2026 highest maximum
2026 lowest minimum
Jan
18.9 C (66.0 F)
-18.3 C (-0.9 F)
n/a
n/a
Feb
20.0 C (68.0 F)
-17.8 C (0.0 F)
n/a
n/a
Mar
25.6 C (78.1 F)
-11.7 C (10.9 F)
n/a
n/a
Apr
28.3 C (82.9 F)
-5.0 C (23.0 F)
n/a
n/a
May
30.0 C (86.0 F)
-3.3 C (26.1 F)
n/a
n/a
Jun
38.3 C (100.9 F)
0.6 C (33.1 F)
n/a
n/a
Jul
33.9 C (93.0 F)
2.2 C (36.0 F)
n/a
n/a
Aug
36.7 C (98.1 F)
0.6 C (33.1 F)
n/a
n/a
Sep
32.8 C (91.0 F)
-2.8 C (27.0 F)
n/a
n/a
Oct
28.3 C (82.9 F)
-5.6 C (21.9 F)
n/a
n/a
Nov
19.4 C (66.9 F)
-14.4 C (6.1 F)
n/a
n/a
Dec
19.4 C (66.9 F)
-14.4 C (6.1 F)
n/a
n/a
Which Years Hold Standing Records
1,464 standing records
Year with most
1,464 records at Marietta 3 NNW still stand. 1914 holds the most, with 69.
Standing records at Marietta 3 NNW by the year they were set
Year set
Standing records
1913
1
1914
69
1915
37
1916
53
1917
40
1918
61
1919
51
1920
36
1921
36
1922
30
1923
29
1924
35
1925
37
1926
56
1927
23
1928
17
1929
30
1930
27
1931
36
1932
20
1933
28
1934
33
1935
35
1936
37
1937
23
1938
15
1939
38
1940
36
1941
31
1942
28
1943
34
1944
28
1945
22
1946
14
1947
28
1948
21
1949
36
1950
51
1951
34
1952
26
1953
18
1954
20
1955
45
1956
29
1957
13
1958
17
Wettest Day of Each Month
Oct: 55.9 mm (2.2 in)
The wettest day on record for each calendar month at Marietta 3 NNW. The most was 55.9 mm (2.2 in) on 26 October 1945.
Record daily precipitation for each month at Marietta 3 NNW
Month
Record daily precipitation (mm)
Date
Jan
53.3 mm (2.1 in)
24 January 1935
Feb
43.2 mm (1.7 in)
10 February 1951
Mar
41.1 mm (1.6 in)
24 March 1930
Apr
27.9 mm (1.1 in)
4 April 1920
May
39.4 mm (1.6 in)
11 May 1951
Jun
34.3 mm (1.4 in)
1 June 1917
Jul
47.5 mm (1.9 in)
10 July 1932
Aug
46.7 mm (1.8 in)
24 August 1921
Sep
45.7 mm (1.8 in)
27 September 1921
Oct
55.9 mm (2.2 in)
26 October 1945
Nov
48.8 mm (1.9 in)
3 November 1955
Dec
51.8 mm (2.0 in)
29 December 1917
Period of Record Coverage
1913 to 1958
Complete yearUnder 90 percent of days
46 years of record at Marietta 3 NNW, 1913 to 1958. 2 years have data for under 90 percent of days and are left out of rankings: 1913, 1958.
Cooler than the station meanWarmer than the station mean
One stripe for each of 40 complete years at Marietta 3 NNW, 1914 to 1957. Blue stripes are years cooler than the station's own mean of 10.0 C (49.9 F); red stripes are warmer. The coolest year was 1955, at 8.5 C (47.2 F), and the warmest was 1926, at 11.5 C (52.7 F). The strongest colour marks a difference of 1.6 C (2.9 F).
Annual mean temperature at Marietta 3 NNW as warming stripes, 1914 to 1957
Year
Annual mean temperature
Difference from the station mean
1914
10.6 C
+0.63 C
1915
11.2 C
+1.23 C
1917
9.5 C
-0.43 C
1918
10.6 C
+0.59 C
1919
9.2 C
-0.76 C
1920
9.6 C
-0.42 C
1921
9.2 C
-0.76 C
1922
8.8 C
-1.15 C
1923
9.9 C
-0.08 C
1925
11.5 C
+1.55 C
1926
11.5 C
+1.55 C
1927
9.5 C
-0.43 C
1928
10.2 C
+0.24 C
1929
9.2 C
-0.79 C
1930
9.3 C
-0.70 C
1931
10.0 C
+0.01 C
1933
9.3 C
-0.67 C
1934
11.0 C
+0.99 C
1935
9.5 C
-0.45 C
1936
9.6 C
-0.36 C
1937
9.4 C
-0.57 C
1938
9.9 C
-0.12 C
1939
10.2 C
+0.22 C
1940
11.1 C
+1.13 C
1941
11.2 C
+1.20 C
1942
10.7 C
+0.70 C
1943
10.2 C
+0.22 C
1944
10.9 C
+0.95 C
1945
10.8 C
+0.87 C
1947
11.1 C
+1.11 C
1948
10.4 C
+0.43 C
1949
9.4 C
-0.53 C
1950
8.7 C
-1.25 C
1951
9.2 C
-0.74 C
1952
9.0 C
-0.97 C
1953
10.4 C
+0.41 C
1954
9.4 C
-0.61 C
1955
8.5 C
-1.51 C
1956
9.5 C
-0.51 C
1957
9.6 C
-0.38 C
The fitted trend in annual mean temperature here over 1914 to 1957 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 (-0.6 to 0.2) 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 Marietta 3 NNW
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 (-0.6 to 0.2) per decade
1914 to 1957
40
Not clearly different from zero
Mean daily maximum
-0.1 C (-0.4 to 0.2) per decade
-0.1 F (-0.7 to 0.4) per decade
1914 to 1957
40
Not clearly different from zero
Mean daily minimum
-0.13 C (-0.31 to 0.05) per decade
-0.2 F (-0.6 to 0.1) per decade
1914 to 1957
40
Not clearly different from zero
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
1913 to 1958
Yearly extremes at Marietta 3 NNW: the record and the median year
Measure
Record
Year of the record
Median year
Years with a value
Hottest day (TXx)
38.3 C (100.9 F)
1918
30.6 C (87.1 F)
46
Coldest night (TNn)
-18.3 C (-0.9 F)
1943
-11.4 C (11.5 F)
46
Wettest day (Rx1day)
55.9 mm (2.2 in)
1945
32.4 mm (1.3 in)
46
Wettest five days (Rx5day)
203.1 mm (8.0 in)
1935
66.6 mm (2.6 in)
46
Longest dry spell (CDD)
80 days
1951
27 days
46
Hottest day (TXx)
The hottest day of the year at Marietta 3 NNW, 1913 to 1958. The record is 38.3 C (100.9 F) in 1918, marked on the chart; the median year is 30.6 C (87.1 F).
Hottest day (TXx) at Marietta 3 NNW by year
Year
Hottest day (TXx)
1913
13.3 C (55.9 F)
1914
31.1 C (88.0 F)
1915
31.1 C (88.0 F)
1916
29.4 C (84.9 F)
1917
28.9 C (84.0 F)
1918
38.3 C (100.9 F)
1919
28.9 C (84.0 F)
1920
30.0 C (86.0 F)
1921
23.9 C (75.0 F)
1922
29.4 C (84.9 F)
1923
29.4 C (84.9 F)
1924
32.2 C (90.0 F)
1925
34.4 C (93.9 F)
1926
30.6 C (87.1 F)
1927
30.6 C (87.1 F)
1928
30.0 C (86.0 F)
1929
29.4 C (84.9 F)
1930
30.6 C (87.1 F)
1931
31.7 C (89.1 F)
1932
30.0 C (86.0 F)
1933
32.2 C (90.0 F)
1934
32.2 C (90.0 F)
1935
32.2 C (90.0 F)
1936
29.4 C (84.9 F)
1937
27.8 C (82.0 F)
1938
28.3 C (82.9 F)
1939
31.7 C (89.1 F)
1940
28.3 C (82.9 F)
1941
33.3 C (91.9 F)
1942
33.3 C (91.9 F)
1943
32.2 C (90.0 F)
1944
36.7 C (98.1 F)
1945
32.2 C (90.0 F)
1946
32.8 C (91.0 F)
1947
30.0 C (86.0 F)
1948
32.2 C (90.0 F)
1949
30.0 C (86.0 F)
1950
28.9 C (84.0 F)
1951
33.9 C (93.0 F)
1952
30.0 C (86.0 F)
1953
31.1 C (88.0 F)
1954
25.6 C (78.1 F)
1955
34.4 C (93.9 F)
1956
31.7 C (89.1 F)
1957
29.4 C (84.9 F)
1958
32.2 C (90.0 F)
Coldest night (TNn)
The coldest night of the year at Marietta 3 NNW, 1913 to 1958. The record is -18.3 C (-0.9 F) in 1943, marked on the chart; the median year is -11.4 C (11.5 F).
Coldest night (TNn) at Marietta 3 NNW by year
Year
Coldest night (TNn)
1913
-5.6 C (21.9 F)
1914
-9.4 C (15.1 F)
1915
-6.7 C (19.9 F)
1916
-15.0 C (5.0 F)
1917
-14.4 C (6.1 F)
1918
-7.8 C (18.0 F)
1919
-14.4 C (6.1 F)
1920
-7.2 C (19.0 F)
1921
-11.1 C (12.0 F)
1922
-13.3 C (8.1 F)
1923
-11.7 C (10.9 F)
1924
-12.8 C (9.0 F)
1925
-5.6 C (21.9 F)
1926
-10.6 C (12.9 F)
1927
-11.7 C (10.9 F)
1928
-7.8 C (18.0 F)
1929
-15.0 C (5.0 F)
1930
-13.3 C (8.1 F)
1931
-8.3 C (17.1 F)
1932
-11.1 C (12.0 F)
1933
-12.8 C (9.0 F)
1934
-5.6 C (21.9 F)
1935
-16.7 C (1.9 F)
1936
-17.8 C (0.0 F)
1937
-17.8 C (0.0 F)
1938
-7.2 C (19.0 F)
1939
-10.0 C (14.0 F)
1940
-7.2 C (19.0 F)
1941
-6.7 C (19.9 F)
1942
-9.4 C (15.1 F)
1943
-18.3 C (-0.9 F)
1944
-10.0 C (14.0 F)
1945
-7.8 C (18.0 F)
1946
-6.7 C (19.9 F)
1947
-12.2 C (10.0 F)
1948
-10.6 C (12.9 F)
1949
-15.0 C (5.0 F)
1950
-17.8 C (0.0 F)
1951
-13.3 C (8.1 F)
1952
-12.8 C (9.0 F)
1953
-5.0 C (23.0 F)
1954
-13.3 C (8.1 F)
1955
-14.4 C (6.1 F)
1956
-14.4 C (6.1 F)
1957
-12.2 C (10.0 F)
1958
-3.9 C (25.0 F)
Wettest day (Rx1day)
The wettest day of the year at Marietta 3 NNW, 1913 to 1958. The record is 55.9 mm (2.2 in) in 1945, marked on the chart; the median year is 32.4 mm (1.3 in).
Wettest day (Rx1day) at Marietta 3 NNW by year
Year
Wettest day (Rx1day)
1913
6.9 mm (0.27 in)
1914
34.5 mm (1.4 in)
1915
24.6 mm (1.0 in)
1916
33.0 mm (1.3 in)
1917
51.8 mm (2.0 in)
1918
40.1 mm (1.6 in)
1919
31.8 mm (1.3 in)
1920
34.5 mm (1.4 in)
1921
48.8 mm (1.9 in)
1922
36.1 mm (1.4 in)
1923
31.8 mm (1.3 in)
1924
31.8 mm (1.3 in)
1925
27.2 mm (1.1 in)
1926
31.2 mm (1.2 in)
1927
41.9 mm (1.6 in)
1928
34.3 mm (1.4 in)
1929
30.5 mm (1.2 in)
1930
41.1 mm (1.6 in)
1931
31.0 mm (1.2 in)
1932
47.5 mm (1.9 in)
1933
47.0 mm (1.9 in)
1934
34.5 mm (1.4 in)
1935
53.3 mm (2.1 in)
1936
37.8 mm (1.5 in)
1937
31.8 mm (1.3 in)
1938
29.5 mm (1.2 in)
1939
21.8 mm (0.9 in)
1940
40.6 mm (1.6 in)
1941
27.4 mm (1.1 in)
1942
27.9 mm (1.1 in)
1943
28.4 mm (1.1 in)
1944
31.8 mm (1.3 in)
1945
55.9 mm (2.2 in)
1946
20.8 mm (0.8 in)
1947
36.8 mm (1.4 in)
1948
27.4 mm (1.1 in)
1949
49.8 mm (2.0 in)
1950
30.2 mm (1.2 in)
1951
43.2 mm (1.7 in)
1952
19.1 mm (0.8 in)
1953
33.8 mm (1.3 in)
1954
29.5 mm (1.2 in)
1955
48.8 mm (1.9 in)
1956
48.3 mm (1.9 in)
1957
22.9 mm (0.9 in)
1958
22.9 mm (0.9 in)
Wettest five days (Rx5day)
The wettest five days of the year at Marietta 3 NNW, 1913 to 1958. The record is 203.1 mm (8.0 in) in 1935, marked on the chart; the median year is 66.6 mm (2.6 in).
Wettest five days (Rx5day) at Marietta 3 NNW by year
Year
Wettest five days (Rx5day)
1913
9.4 mm (0.37 in)
1914
87.6 mm (3.4 in)
1915
52.6 mm (2.1 in)
1916
77.2 mm (3.0 in)
1917
121.4 mm (4.8 in)
1918
101.0 mm (4.0 in)
1919
68.3 mm (2.7 in)
1920
85.9 mm (3.4 in)
1921
103.4 mm (4.1 in)
1922
58.5 mm (2.3 in)
1923
78.0 mm (3.1 in)
1924
62.3 mm (2.5 in)
1925
51.6 mm (2.0 in)
1926
57.9 mm (2.3 in)
1927
69.1 mm (2.7 in)
1928
58.7 mm (2.3 in)
1929
59.2 mm (2.3 in)
1930
67.1 mm (2.6 in)
1931
69.9 mm (2.8 in)
1932
87.4 mm (3.4 in)
1933
91.5 mm (3.6 in)
1934
70.2 mm (2.8 in)
1935
203.1 mm (8.0 in)
1936
69.6 mm (2.7 in)
1937
75.5 mm (3.0 in)
1938
65.0 mm (2.6 in)
1939
60.3 mm (2.4 in)
1940
57.9 mm (2.3 in)
1941
57.1 mm (2.2 in)
1942
51.6 mm (2.0 in)
1943
50.5 mm (2.0 in)
1944
45.1 mm (1.8 in)
1945
112.8 mm (4.4 in)
1946
49.6 mm (2.0 in)
1947
65.2 mm (2.6 in)
1948
58.9 mm (2.3 in)
1949
90.4 mm (3.6 in)
1950
70.9 mm (2.8 in)
1951
109.7 mm (4.3 in)
1952
37.5 mm (1.5 in)
1953
51.8 mm (2.0 in)
1954
84.9 mm (3.3 in)
1955
66.1 mm (2.6 in)
1956
69.1 mm (2.7 in)
1957
45.3 mm (1.8 in)
1958
42.5 mm (1.7 in)
Longest dry spell (CDD)
The longest dry spell of the year at Marietta 3 NNW, 1913 to 1958. The record is 80 days in 1951, marked on the chart; the median year is 27 days.
Longest dry spell (CDD) at Marietta 3 NNW by year
Year
Longest dry spell (CDD)
1913
7 days
1914
71 days
1915
46 days
1916
29 days
1917
22 days
1918
29 days
1919
29 days
1920
36 days
1921
40 days
1922
48 days
1923
42 days
1924
32 days
1925
35 days
1926
58 days
1927
27 days
1928
4 days
1929
17 days
1930
31 days
1931
36 days
1932
15 days
1933
22 days
1934
28 days
1935
25 days
1936
42 days
1937
18 days
1938
2 days
1939
8 days
1940
10 days
1941
17 days
1942
39 days
1943
24 days
1944
31 days
1945
21 days
1946
22 days
1947
29 days
1948
14 days
1949
23 days
1950
26 days
1951
80 days
1952
30 days
1953
19 days
1954
18 days
1955
23 days
1956
27 days
1957
20 days
1958
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
40 years with a frost
Across 40 years with a frost, the median last spring frost at Marietta 3 NNW falls on 26 April and the median first autumn frost on 15 October, which leaves a median of 168 days between them.
Fitted over all years, the growing season changes by -1.4 days per decade at this station.
Frost dates and growing season at Marietta 3 NNW
Measure
Median, all years
Earliest period
Recent period (1926 to 1957)
Recent against earliest
Fitted trend
Last spring frost
26 April
n/a
27 April
n/a
+1.2 days per decade
First autumn frost
15 October
n/a
10 October
n/a
-0.3 days per decade
Growing days
168 days
n/a
165 days
n/a
-1.4 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
35 years, 1914 to 1957
A day with at least 34.5 mm (1.4 in) of rain is expected about once in 2 years. A day with at least 63.4 mm (2.5 in) of rain is expected about once in 100 years.
Rainfall return levels at Marietta 3 NNW: the daily rain expected about once in a given number of years
Expected about once in
A day with at least
Note
2 years
34.5 mm (1.4 in)
5 years
43.2 mm (1.7 in)
10 years
48.6 mm (1.9 in)
25 years
54.9 mm (2.2 in)
50 years
59.3 mm (2.3 in)
Longer than the 35 years of record
100 years
63.4 mm (2.5 in)
Longer than the 35 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, 35 years of values from 1914 to 1957.
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: 55.9 mm (2.2 in) in 1945; 51.8 mm (2.0 in) in 1917; 49.8 mm (2.0 in) in 1949.
Station Changes
No change in the annual mean temperature of this station was found against its neighbours.
Download the Data
Data for Marietta 3 NNW standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Marietta 3 NNW 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.