Record envelope, standing records and threshold days for Cascade Locks (USC00351407), Oregon, United States, with 133 years of record.
Key Facts for Cascade Locks
Cascade Locks (USC00351407) is a weather station in Oregon, United States at 45.68 latitude and -121.87 longitude, 43 m (142 ft) above sea level.
The station reports from 1894 to 2026, 133 years of record.
1,464 records set at Cascade Locks still stand.
Records are tracked for tmax, tmin, prcp, snow: an element needs 30 years of data to be eligible.
Cascade Locks tied a daily record high minimum temperature of 18.9 C (66.0 F) on 23 July 2026.
About the Station
Location: Oregon, United States, 45.68 latitude, -121.87 longitude.
Elevation: 43 m (142 ft).
Period of record: 1894 to 2026, 133 years.
Eligible elements: tmax, tmin, prcp, snow.
Daily Record Envelope and 2026
6 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 Cascade Locks. The lines show the 2026 daily maximum and minimum. 6 days in 2026 matched or passed a record. Temperatures are in degrees Celsius.
Daily record high and record low at Cascade Locks, with 2026 drawn through them
Month
Highest record high
Lowest record low
2026 highest maximum
2026 lowest minimum
Jan
17.2 C (63.0 F)
-19.4 C (-2.9 F)
12.2 C (54.0 F)
-3.3 C (26.1 F)
Feb
20.0 C (68.0 F)
-18.9 C (-2.0 F)
13.9 C (57.0 F)
-1.1 C (30.0 F)
Mar
28.9 C (84.0 F)
-10.6 C (12.9 F)
22.8 C (73.0 F)
-1.7 C (28.9 F)
Apr
32.2 C (90.0 F)
-2.8 C (27.0 F)
26.1 C (79.0 F)
1.7 C (35.1 F)
May
35.0 C (95.0 F)
-3.3 C (26.1 F)
32.2 C (90.0 F)
6.7 C (44.1 F)
Jun
42.8 C (109.0 F)
2.2 C (36.0 F)
34.4 C (93.9 F)
6.1 C (43.0 F)
Jul
42.2 C (108.0 F)
4.4 C (39.9 F)
36.1 C (97.0 F)
9.4 C (48.9 F)
Aug
41.7 C (107.1 F)
5.0 C (41.0 F)
35.0 C (95.0 F)
9.4 C (48.9 F)
Sep
36.1 C (97.0 F)
-1.1 C (30.0 F)
31.1 C (88.0 F)
8.9 C (48.0 F)
Oct
31.1 C (88.0 F)
-4.4 C (24.1 F)
n/a
n/a
Nov
21.7 C (71.1 F)
-12.2 C (10.0 F)
n/a
n/a
Dec
18.9 C (66.0 F)
-16.7 C (1.9 F)
n/a
n/a
Which Years Hold Standing Records
1,464 standing records
Year with most
1,464 records at Cascade Locks still stand. 1899 holds the most, with 45.
Standing records at Cascade Locks by the year they were set
Year set
Standing records
1894
11
1895
20
1896
27
1897
27
1898
18
1899
45
1900
21
1901
41
1902
23
1903
8
1904
19
1905
25
1906
35
1907
20
1908
17
1909
38
1910
15
1911
25
1912
15
1913
16
1914
13
1915
9
1916
28
1917
26
1918
26
1919
27
1920
22
1921
21
1922
15
1923
17
1924
40
1925
19
1926
24
1927
18
1928
17
1929
20
1930
21
1931
24
1932
15
1933
22
1934
33
1935
31
1936
26
1937
12
1938
14
1939
15
1940
11
1941
16
1942
7
1943
11
1944
13
1945
12
1946
7
1947
15
1948
7
1949
19
1950
22
1951
10
1952
23
1953
25
1954
10
2013
4
2014
15
2015
26
2016
19
2017
11
2018
16
2019
23
2020
9
2021
27
2022
25
2023
21
2024
10
2025
22
2026
7
All-Time Record Progression
5 new records
5 all-time records were set at Cascade Locks between 10 July 1926 and 29 June 2021. Each dot is a new record.
When Cascade Locks set new all-time records
Date
Kind
Detail
1926-07-10
Record high maximum temperature
Record high maximum temperature 41.7 C (107.1 F)
1941-07-15
Record high maximum temperature
Record high maximum temperature 42.2 C (108.0 F)
1950-01-30
Record low minimum temperature
Record low minimum temperature -19.4 C (-2.9 F)
1950-02-03
Record low maximum temperature
Record low maximum temperature -15.0 C (5.0 F)
2021-06-29
Record high maximum temperature
Record high maximum temperature 42.8 C (109.0 F)
Wettest Day of Each Month
Jan: 141.2 mm (5.6 in)
The wettest day on record for each calendar month at Cascade Locks. The most was 141.2 mm (5.6 in) on 6 January 1923.
Record daily precipitation for each month at Cascade Locks
Month
Record daily precipitation (mm)
Date
Jan
141.2 mm (5.6 in)
6 January 1923
Feb
79.5 mm (3.1 in)
15 February 1901
Mar
114.8 mm (4.5 in)
16 March 1921
Apr
71.4 mm (2.8 in)
13 April 1937
May
69.3 mm (2.7 in)
1 May 1949
Jun
73.2 mm (2.9 in)
8 June 1933
Jul
35.6 mm (1.4 in)
1 July 1916
Aug
66.0 mm (2.6 in)
31 August 1912
Sep
66.0 mm (2.6 in)
27 September 1940
Oct
118.4 mm (4.7 in)
22 October 2017
Nov
131.3 mm (5.2 in)
5 November 2022
Dec
130.3 mm (5.1 in)
19 December 2025
Period of Record Coverage
1894 to 2026
Complete yearUnder 90 percent of days
75 years of record at Cascade Locks, 1894 to 2026. 7 years have data for under 90 percent of days and are left out of rankings: 1894, 1897, 1904, 1908, 1954, 2013, 2026.
Cooler than the station meanWarmer than the station mean
One stripe for each of 67 complete years at Cascade Locks, 1895 to 2025. Blue stripes are years cooler than the station's own mean of 11.4 C (52.5 F); red stripes are warmer. The coolest year was 1916, at 9.6 C (49.2 F), and the warmest was 1934, at 13.4 C (56.1 F). The strongest colour marks a difference of 2.1 C (3.8 F).
Annual mean temperature at Cascade Locks as warming stripes, 1895 to 2025
Year
Annual mean temperature
Difference from the station mean
1895
11.3 C
-0.15 C
1896
11.4 C
+0.01 C
1898
11.2 C
-0.21 C
1899
10.7 C
-0.69 C
1900
12.1 C
+0.68 C
1901
12.9 C
+1.53 C
1902
10.8 C
-0.64 C
1903
10.9 C
-0.54 C
1906
12.0 C
+0.62 C
1907
11.0 C
-0.36 C
1908
10.8 C
-0.62 C
1909
9.9 C
-1.46 C
1910
10.9 C
-0.46 C
1911
10.5 C
-0.94 C
1912
10.7 C
-0.73 C
1913
10.5 C
-0.92 C
1914
11.2 C
-0.23 C
1915
11.3 C
-0.06 C
1916
9.6 C
-1.83 C
1917
11.5 C
+0.10 C
1918
12.0 C
+0.63 C
1919
10.8 C
-0.57 C
1920
10.9 C
-0.47 C
1921
10.9 C
-0.53 C
1922
10.2 C
-1.18 C
1923
11.5 C
+0.10 C
1924
11.0 C
-0.39 C
1925
12.2 C
+0.81 C
1926
12.6 C
+1.19 C
1927
11.2 C
-0.21 C
1928
11.1 C
-0.27 C
1929
10.6 C
-0.78 C
1930
10.9 C
-0.51 C
1931
11.5 C
+0.11 C
1932
11.4 C
-0.03 C
1933
11.1 C
-0.27 C
1934
13.4 C
+2.01 C
1935
11.3 C
-0.11 C
1936
11.6 C
+0.22 C
1937
11.2 C
-0.20 C
1938
12.0 C
+0.55 C
1939
12.5 C
+1.08 C
1940
12.5 C
+1.11 C
1941
12.3 C
+0.93 C
1942
11.4 C
+0.00 C
1943
11.0 C
-0.43 C
1944
11.5 C
+0.09 C
1945
11.4 C
+0.00 C
1946
11.3 C
-0.14 C
1947
11.9 C
+0.52 C
1948
10.6 C
-0.77 C
1950
10.3 C
-1.14 C
1951
11.2 C
-0.23 C
1952
11.1 C
-0.35 C
1953
11.8 C
+0.40 C
2014
12.2 C
+0.81 C
2015
13.0 C
+1.57 C
2016
12.1 C
+0.70 C
2017
11.0 C
-0.40 C
2018
12.0 C
+0.64 C
2019
11.0 C
-0.41 C
2020
11.7 C
+0.33 C
2021
12.1 C
+0.69 C
2022
11.2 C
-0.25 C
2023
11.9 C
+0.52 C
2024
11.7 C
+0.30 C
2025
12.5 C
+1.09 C
The annual mean temperature here has risen by 0.06 C (0.02 to 0.11) per decade over 1895 to 2025. In Fahrenheit: 0.11 F (0.03 to 0.19) per decade. The slope is a straight line fitted to 67 complete years; the brackets give its 95 percent interval.
Fitted temperature trends per decade at Cascade Locks
Measure
Per decade (C)
Per decade (F)
Period
Complete years
Reading
Annual mean temperature
0.06 C (0.02 to 0.11) per decade
0.11 F (0.03 to 0.19) per decade
1895 to 2025
67
Rise
Mean daily maximum
0.09 C (0.04 to 0.15) per decade
0.2 F (0.1 to 0.3) per decade
1895 to 2025
67
Rise
Mean daily minimum
0.03 C (-0.01 to 0.07) per decade
0.05 F (-0.03 to 0.13) per decade
1895 to 2025
67
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
1894 to 2026
Yearly extremes at Cascade Locks: the record and the median year
Measure
Record
Year of the record
Median year
Years with a value
Hottest day (TXx)
42.8 C (109.0 F)
2021
37.2 C (99.0 F)
75
Coldest night (TNn)
-19.4 C (-2.9 F)
1950
-10.0 C (14.0 F)
75
Wettest day (Rx1day)
141.2 mm (5.6 in)
1923
77.5 mm (3.1 in)
75
Wettest five days (Rx5day)
323.8 mm (12.7 in)
1923
191.7 mm (7.5 in)
75
Longest dry spell (CDD)
75 days
1922
40 days
75
Hottest day (TXx)
The hottest day of the year at Cascade Locks, 1894 to 2026. The record is 42.8 C (109.0 F) in 2021, marked on the chart; the median year is 37.2 C (99.0 F).
Hottest day (TXx) at Cascade Locks by year
Year
Hottest day (TXx)
1894
31.7 C (89.1 F)
1895
37.8 C (100.0 F)
1896
34.4 C (93.9 F)
1897
38.9 C (102.0 F)
1898
35.6 C (96.1 F)
1899
35.6 C (96.1 F)
1900
35.0 C (95.0 F)
1901
40.0 C (104.0 F)
1902
36.7 C (98.1 F)
1903
35.0 C (95.0 F)
1904
38.9 C (102.0 F)
1905
36.1 C (97.0 F)
1906
38.9 C (102.0 F)
1907
38.9 C (102.0 F)
1908
36.1 C (97.0 F)
1909
32.2 C (90.0 F)
1910
36.7 C (98.1 F)
1911
36.7 C (98.1 F)
1912
34.4 C (93.9 F)
1913
35.6 C (96.1 F)
1914
34.4 C (93.9 F)
1915
35.6 C (96.1 F)
1916
37.2 C (99.0 F)
1917
37.8 C (100.0 F)
1918
34.4 C (93.9 F)
1919
36.1 C (97.0 F)
1920
37.8 C (100.0 F)
1921
34.4 C (93.9 F)
1922
37.8 C (100.0 F)
1923
37.8 C (100.0 F)
1924
36.7 C (98.1 F)
1925
37.2 C (99.0 F)
1926
41.7 C (107.1 F)
1927
39.4 C (102.9 F)
1928
37.8 C (100.0 F)
1929
36.1 C (97.0 F)
1930
37.8 C (100.0 F)
1931
38.3 C (100.9 F)
1932
39.4 C (102.9 F)
1933
39.4 C (102.9 F)
1934
37.8 C (100.0 F)
1935
40.0 C (104.0 F)
1936
35.6 C (96.1 F)
1937
35.6 C (96.1 F)
1938
40.6 C (105.1 F)
1939
37.8 C (100.0 F)
1940
38.3 C (100.9 F)
1941
42.2 C (108.0 F)
1942
38.3 C (100.9 F)
1943
32.2 C (90.0 F)
1944
38.3 C (100.9 F)
1945
36.7 C (98.1 F)
1946
39.4 C (102.9 F)
1947
33.3 C (91.9 F)
1948
34.4 C (93.9 F)
1949
34.4 C (93.9 F)
1950
36.1 C (97.0 F)
1951
36.1 C (97.0 F)
1952
37.8 C (100.0 F)
1953
37.2 C (99.0 F)
1954
30.0 C (86.0 F)
2013
23.3 C (73.9 F)
2014
37.8 C (100.0 F)
2015
40.6 C (105.1 F)
2016
38.3 C (100.9 F)
2017
38.3 C (100.9 F)
2018
38.3 C (100.9 F)
2019
35.0 C (95.0 F)
2020
36.7 C (98.1 F)
2021
42.8 C (109.0 F)
2022
37.8 C (100.0 F)
2023
41.7 C (107.1 F)
2024
37.8 C (100.0 F)
2025
38.3 C (100.9 F)
2026
36.1 C (97.0 F)
Coldest night (TNn)
The coldest night of the year at Cascade Locks, 1894 to 2026. The record is -19.4 C (-2.9 F) in 1950, marked on the chart; the median year is -10.0 C (14.0 F).
Coldest night (TNn) at Cascade Locks by year
Year
Coldest night (TNn)
1894
-3.3 C (26.1 F)
1895
-6.7 C (19.9 F)
1896
-12.2 C (10.0 F)
1897
-7.8 C (18.0 F)
1898
-9.4 C (15.1 F)
1899
-15.6 C (3.9 F)
1900
-8.9 C (16.0 F)
1901
-2.8 C (27.0 F)
1902
-13.3 C (8.1 F)
1903
-7.8 C (18.0 F)
1904
-2.2 C (28.0 F)
1905
-11.7 C (10.9 F)
1906
-10.6 C (12.9 F)
1907
-15.0 C (5.0 F)
1908
-6.7 C (19.9 F)
1909
-18.9 C (-2.0 F)
1910
-11.7 C (10.9 F)
1911
-7.2 C (19.0 F)
1912
-13.9 C (7.0 F)
1913
-7.8 C (18.0 F)
1914
-10.0 C (14.0 F)
1915
-7.8 C (18.0 F)
1916
-17.8 C (0.0 F)
1917
-10.6 C (12.9 F)
1918
-7.2 C (19.0 F)
1919
-13.9 C (7.0 F)
1920
-7.2 C (19.0 F)
1921
-8.9 C (16.0 F)
1922
-15.0 C (5.0 F)
1923
-12.8 C (9.0 F)
1924
-16.7 C (1.9 F)
1925
-1.7 C (28.9 F)
1926
-12.8 C (9.0 F)
1927
-16.1 C (3.0 F)
1928
-12.8 C (9.0 F)
1929
-15.6 C (3.9 F)
1930
-17.2 C (1.0 F)
1931
-9.4 C (15.1 F)
1932
-12.8 C (9.0 F)
1933
-14.4 C (6.1 F)
1934
-0.6 C (30.9 F)
1935
-13.3 C (8.1 F)
1936
-12.8 C (9.0 F)
1937
-15.6 C (3.9 F)
1938
-6.1 C (21.0 F)
1939
-7.2 C (19.0 F)
1940
-5.6 C (21.9 F)
1941
-4.4 C (24.1 F)
1942
-11.1 C (12.0 F)
1943
-16.1 C (3.0 F)
1944
-4.4 C (24.1 F)
1945
-5.0 C (23.0 F)
1946
-5.0 C (23.0 F)
1947
-9.4 C (15.1 F)
1948
-9.4 C (15.1 F)
1949
-13.9 C (7.0 F)
1950
-19.4 C (-2.9 F)
1951
-10.0 C (14.0 F)
1952
-10.0 C (14.0 F)
1953
-2.8 C (27.0 F)
1954
-12.8 C (9.0 F)
2013
-13.3 C (8.1 F)
2014
-10.6 C (12.9 F)
2015
-6.1 C (21.0 F)
2016
-8.3 C (17.1 F)
2017
-11.7 C (10.9 F)
2018
-8.3 C (17.1 F)
2019
-6.7 C (19.9 F)
2020
-6.1 C (21.0 F)
2021
-6.7 C (19.9 F)
2022
-10.6 C (12.9 F)
2023
-8.3 C (17.1 F)
2024
-13.3 C (8.1 F)
2025
-6.1 C (21.0 F)
2026
-3.3 C (26.1 F)
Wettest day (Rx1day)
The wettest day of the year at Cascade Locks, 1894 to 2026. The record is 141.2 mm (5.6 in) in 1923, marked on the chart; the median year is 77.5 mm (3.1 in).
Wettest day (Rx1day) at Cascade Locks by year
Year
Wettest day (Rx1day)
1894
42.4 mm (1.7 in)
1895
68.6 mm (2.7 in)
1896
80.8 mm (3.2 in)
1897
50.8 mm (2.0 in)
1898
62.5 mm (2.5 in)
1899
67.6 mm (2.7 in)
1900
102.1 mm (4.0 in)
1901
115.6 mm (4.6 in)
1902
68.6 mm (2.7 in)
1903
108.5 mm (4.3 in)
1904
76.2 mm (3.0 in)
1905
47.5 mm (1.9 in)
1906
50.8 mm (2.0 in)
1907
88.9 mm (3.5 in)
1908
87.1 mm (3.4 in)
1909
107.4 mm (4.2 in)
1910
77.5 mm (3.1 in)
1911
92.2 mm (3.6 in)
1912
106.2 mm (4.2 in)
1913
70.6 mm (2.8 in)
1914
78.7 mm (3.1 in)
1915
90.4 mm (3.6 in)
1916
60.2 mm (2.4 in)
1917
114.6 mm (4.5 in)
1918
62.5 mm (2.5 in)
1919
57.2 mm (2.3 in)
1920
85.1 mm (3.4 in)
1921
114.8 mm (4.5 in)
1922
57.7 mm (2.3 in)
1923
141.2 mm (5.6 in)
1924
75.4 mm (3.0 in)
1925
68.3 mm (2.7 in)
1926
80.0 mm (3.1 in)
1927
101.6 mm (4.0 in)
1928
102.9 mm (4.1 in)
1929
67.1 mm (2.6 in)
1930
70.4 mm (2.8 in)
1931
101.6 mm (4.0 in)
1932
67.3 mm (2.6 in)
1933
127.3 mm (5.0 in)
1934
72.4 mm (2.9 in)
1935
66.8 mm (2.6 in)
1936
71.1 mm (2.8 in)
1937
83.8 mm (3.3 in)
1938
70.9 mm (2.8 in)
1939
57.7 mm (2.3 in)
1940
78.2 mm (3.1 in)
1941
90.2 mm (3.6 in)
1942
116.3 mm (4.6 in)
1943
70.1 mm (2.8 in)
1944
48.0 mm (1.9 in)
1945
90.9 mm (3.6 in)
1946
94.5 mm (3.7 in)
1947
62.0 mm (2.4 in)
1948
79.5 mm (3.1 in)
1949
78.2 mm (3.1 in)
1950
89.9 mm (3.5 in)
1951
64.3 mm (2.5 in)
1952
41.7 mm (1.6 in)
1953
94.2 mm (3.7 in)
1954
56.6 mm (2.2 in)
2013
101.1 mm (4.0 in)
2014
94.0 mm (3.7 in)
2015
75.7 mm (3.0 in)
2016
75.9 mm (3.0 in)
2017
118.4 mm (4.7 in)
2018
68.1 mm (2.7 in)
2019
55.9 mm (2.2 in)
2020
76.7 mm (3.0 in)
2021
106.2 mm (4.2 in)
2022
131.3 mm (5.2 in)
2023
69.3 mm (2.7 in)
2024
62.2 mm (2.4 in)
2025
130.3 mm (5.1 in)
2026
79.0 mm (3.1 in)
Wettest five days (Rx5day)
The wettest five days of the year at Cascade Locks, 1894 to 2026. The record is 323.8 mm (12.7 in) in 1923, marked on the chart; the median year is 191.7 mm (7.5 in).
Wettest five days (Rx5day) at Cascade Locks by year
Year
Wettest five days (Rx5day)
1894
142.9 mm (5.6 in)
1895
142.8 mm (5.6 in)
1896
271.3 mm (10.7 in)
1897
160.5 mm (6.3 in)
1898
145.3 mm (5.7 in)
1899
216.7 mm (8.5 in)
1900
164.3 mm (6.5 in)
1901
210.1 mm (8.3 in)
1902
182.5 mm (7.2 in)
1903
203.5 mm (8.0 in)
1904
156.7 mm (6.2 in)
1905
137.1 mm (5.4 in)
1906
200.9 mm (7.9 in)
1907
190.8 mm (7.5 in)
1908
185.9 mm (7.3 in)
1909
220.9 mm (8.7 in)
1910
213.4 mm (8.4 in)
1911
189.0 mm (7.4 in)
1912
240.3 mm (9.5 in)
1913
172.8 mm (6.8 in)
1914
156.2 mm (6.1 in)
1915
213.1 mm (8.4 in)
1916
159.5 mm (6.3 in)
1917
263.2 mm (10.4 in)
1918
197.8 mm (7.8 in)
1919
221.7 mm (8.7 in)
1920
212.1 mm (8.4 in)
1921
210.4 mm (8.3 in)
1922
162.3 mm (6.4 in)
1923
323.8 mm (12.7 in)
1924
191.7 mm (7.5 in)
1925
166.4 mm (6.6 in)
1926
175.3 mm (6.9 in)
1927
240.8 mm (9.5 in)
1928
192.0 mm (7.6 in)
1929
232.2 mm (9.1 in)
1930
112.2 mm (4.4 in)
1931
185.9 mm (7.3 in)
1932
140.1 mm (5.5 in)
1933
285.8 mm (11.3 in)
1934
219.2 mm (8.6 in)
1935
101.5 mm (4.0 in)
1936
208.0 mm (8.2 in)
1937
216.6 mm (8.5 in)
1938
167.6 mm (6.6 in)
1939
160.8 mm (6.3 in)
1940
186.4 mm (7.3 in)
1941
206.2 mm (8.1 in)
1942
239.8 mm (9.4 in)
1943
216.9 mm (8.5 in)
1944
104.2 mm (4.1 in)
1945
169.7 mm (6.7 in)
1946
310.4 mm (12.2 in)
1947
243.5 mm (9.6 in)
1948
213.9 mm (8.4 in)
1949
217.1 mm (8.5 in)
1950
209.0 mm (8.2 in)
1951
191.3 mm (7.5 in)
1952
159.0 mm (6.3 in)
1953
270.0 mm (10.6 in)
1954
111.8 mm (4.4 in)
2013
148.9 mm (5.9 in)
2014
166.0 mm (6.5 in)
2015
238.5 mm (9.4 in)
2016
177.5 mm (7.0 in)
2017
217.5 mm (8.6 in)
2018
130.2 mm (5.1 in)
2019
141.1 mm (5.6 in)
2020
158.7 mm (6.2 in)
2021
204.3 mm (8.0 in)
2022
233.6 mm (9.2 in)
2023
221.9 mm (8.7 in)
2024
138.0 mm (5.4 in)
2025
229.1 mm (9.0 in)
2026
159.5 mm (6.3 in)
Longest dry spell (CDD)
The longest dry spell of the year at Cascade Locks, 1894 to 2026. The record is 75 days in 1922, marked on the chart; the median year is 40 days.
Longest dry spell (CDD) at Cascade Locks by year
Year
Longest dry spell (CDD)
1894
14 days
1895
22 days
1896
51 days
1897
53 days
1898
24 days
1899
23 days
1900
34 days
1901
53 days
1902
22 days
1903
48 days
1904
30 days
1905
47 days
1906
43 days
1907
33 days
1908
15 days
1909
27 days
1910
45 days
1911
38 days
1912
21 days
1913
31 days
1914
52 days
1915
46 days
1916
30 days
1917
40 days
1918
23 days
1919
59 days
1920
36 days
1921
46 days
1922
75 days
1923
42 days
1924
60 days
1925
62 days
1926
58 days
1927
48 days
1928
68 days
1929
29 days
1930
72 days
1931
57 days
1932
40 days
1933
23 days
1934
37 days
1935
25 days
1936
42 days
1937
24 days
1938
35 days
1939
40 days
1940
49 days
1941
39 days
1942
66 days
1943
27 days
1944
73 days
1945
36 days
1946
44 days
1947
28 days
1948
19 days
1949
20 days
1950
25 days
1951
52 days
1952
55 days
1953
29 days
1954
12 days
2013
15 days
2014
23 days
2015
48 days
2016
53 days
2017
56 days
2018
47 days
2019
22 days
2020
51 days
2021
69 days
2022
56 days
2023
35 days
2024
41 days
2025
44 days
2026
48 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
67 years with a frost
Across 67 years with a frost, the median last spring frost at Cascade Locks falls on 6 April and the median first autumn frost on 12 November, which leaves a median of 220 days between them.
In 1935 to 2025 the median growing season was 224 days. That is 16 days more than in 1895 to 1927.
Fitted over all years, the growing season changes by +1.0 days per decade at this station.
Frost dates and growing season at Cascade Locks
Measure
Median, all years
Earliest period (1895 to 1927)
Recent period (1935 to 2025)
Recent against earliest
Fitted trend
Last spring frost
6 April
13 April
4 April
9 days earlier
-0.1 days per decade
First autumn frost
12 November
9 November
12 November
3 days later
+0.9 days per decade
Growing days
220 days
208 days
224 days
16 days more
+1.0 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
68 years, 1896 to 2025
A day with at least 79.4 mm (3.1 in) of rain is expected about once in 2 years. A day with at least 151.3 mm (6.0 in) of rain is expected about once in 100 years.
Rainfall return levels at Cascade Locks: the daily rain expected about once in a given number of years
Expected about once in
A day with at least
Note
2 years
79.4 mm (3.1 in)
5 years
100.2 mm (3.9 in)
10 years
113.4 mm (4.5 in)
25 years
129.2 mm (5.1 in)
50 years
140.5 mm (5.5 in)
100 years
151.3 mm (6.0 in)
Longer than the 68 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, 68 years of values from 1896 to 2025.
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: 141.2 mm (5.6 in) in 1923; 131.3 mm (5.2 in) in 2022; 130.3 mm (5.1 in) in 2025.
Station Changes
No change in the annual mean temperature of this station was found against its neighbours.
Download the Data
Data for Cascade Locks standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Cascade Locks 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 2026-10-12 (12 October 2026). Records are computed by this site and are not official.