Record envelope, standing records and threshold days for Tidewater (USC00358481), Oregon, United States, with 63 years of record.
Key Facts for Tidewater
Tidewater (USC00358481) is a weather station in Oregon, United States at 44.41 latitude and -123.90 longitude, 15 m (50 ft) above sea level.
The station reports from 1940 to 2002, 63 years of record.
1,464 records set at Tidewater still stand.
Records are tracked for tmax, tmin, prcp, snow, snwd: an element needs 30 years of data to be eligible.
Tidewater set a daily record low minimum temperature of 5.0 C (41.0 F) on 31 August 2002.
About the Station
Location: Oregon, United States, 44.41 latitude, -123.90 longitude.
Elevation: 15 m (50 ft).
Period of record: 1940 to 2002, 63 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 Tidewater. 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 Tidewater, 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)
-13.3 C (8.1 F)
n/a
n/a
Feb
26.7 C (80.1 F)
-12.2 C (10.0 F)
n/a
n/a
Mar
29.4 C (84.9 F)
-5.0 C (23.0 F)
n/a
n/a
Apr
33.3 C (91.9 F)
-3.3 C (26.1 F)
n/a
n/a
May
35.0 C (95.0 F)
-1.1 C (30.0 F)
n/a
n/a
Jun
37.8 C (100.0 F)
1.7 C (35.1 F)
n/a
n/a
Jul
40.6 C (105.1 F)
3.3 C (37.9 F)
n/a
n/a
Aug
41.1 C (106.0 F)
4.4 C (39.9 F)
n/a
n/a
Sep
37.8 C (100.0 F)
-1.7 C (28.9 F)
n/a
n/a
Oct
33.9 C (93.0 F)
-3.9 C (25.0 F)
n/a
n/a
Nov
26.7 C (80.1 F)
-8.3 C (17.1 F)
n/a
n/a
Dec
19.4 C (66.9 F)
-15.0 C (5.0 F)
n/a
n/a
Which Years Hold Standing Records
1,464 standing records
Year with most
1,464 records at Tidewater still stand. 1955 holds the most, with 54.
Standing records at Tidewater by the year they were set
Year set
Standing records
1940
42
1941
28
1942
14
1943
7
1944
12
1945
32
1946
14
1947
26
1948
30
1949
31
1950
45
1951
32
1952
51
1953
42
1954
12
1955
54
1956
28
1957
17
1958
27
1959
21
1960
24
1961
20
1962
38
1963
28
1964
19
1965
17
1966
20
1967
13
1968
30
1969
23
1970
24
1971
24
1972
39
1973
25
1974
21
1975
21
1976
15
1977
18
1978
23
1979
21
1980
25
1981
13
1982
17
1983
39
1984
29
1985
54
1986
20
1987
20
1988
15
1989
22
1990
21
1991
32
1992
21
1993
21
1994
21
1995
21
1998
2
1999
16
2000
8
2002
19
All-Time Record Progression
7 new records
7 all-time records were set at Tidewater between 11 January 1972 and 13 August 2002. Each dot is a new record.
When Tidewater set new all-time records
Date
Kind
Detail
1972-01-11
Record daily precipitation
Record daily precipitation 146.3 mm (5.8 in)
1972-12-07
Record low maximum temperature
Record low maximum temperature -2.2 C (28.0 F)
1972-12-08
Record low minimum temperature
Record low minimum temperature -15.0 C (5.0 F)
1983-07-11
Record high minimum temperature
Record high minimum temperature 21.7 C (71.1 F)
1983-07-30
Record high minimum temperature
Record high minimum temperature 23.9 C (75.0 F)
1990-12-21
Record low maximum temperature
Record low maximum temperature -3.9 C (25.0 F)
2002-08-13
Record high maximum temperature
Record high maximum temperature 41.1 C (106.0 F)
Wettest Day of Each Month
Jan: 146.3 mm (5.8 in)
The wettest day on record for each calendar month at Tidewater. The most was 146.3 mm (5.8 in) on 11 January 1972.
Record daily precipitation for each month at Tidewater
Month
Record daily precipitation (mm)
Date
Jan
146.3 mm (5.8 in)
11 January 1972
Feb
105.7 mm (4.2 in)
17 February 1949
Mar
101.6 mm (4.0 in)
31 March 1943
Apr
81.3 mm (3.2 in)
27 April 1962
May
78.2 mm (3.1 in)
1 May 1949
Jun
61.0 mm (2.4 in)
6 June 1985
Jul
43.7 mm (1.7 in)
23 July 1993
Aug
38.1 mm (1.5 in)
23 August 1968
Sep
82.6 mm (3.3 in)
12 September 1941
Oct
78.7 mm (3.1 in)
23 October 1951
Nov
118.1 mm (4.6 in)
15 November 1973
Dec
105.4 mm (4.1 in)
2 December 1980
Period of Record Coverage
1940 to 2002
Complete yearUnder 90 percent of days
60 years of record at Tidewater, 1940 to 2002. 9 years have data for under 90 percent of days and are left out of rankings: 1940, 1942, 1943, 1960, 1995, 1998, 1999, 2000 and others.
Cooler than the station meanWarmer than the station mean
One stripe for each of 44 complete years at Tidewater, 1941 to 1994. Blue stripes are years cooler than the station's own mean of 11.8 C (53.2 F); red stripes are warmer. The coolest year was 1955, at 10.1 C (50.3 F), and the warmest was 1992, at 13.3 C (56.0 F). The strongest colour marks a difference of 1.7 C (3.1 F).
Annual mean temperature at Tidewater as warming stripes, 1941 to 1994
Year
Annual mean temperature
Difference from the station mean
1941
12.9 C
+1.13 C
1944
11.3 C
-0.41 C
1945
11.3 C
-0.47 C
1946
11.2 C
-0.51 C
1947
11.8 C
+0.03 C
1949
11.1 C
-0.69 C
1950
11.1 C
-0.64 C
1951
11.0 C
-0.78 C
1952
10.5 C
-1.21 C
1955
10.1 C
-1.61 C
1956
10.8 C
-0.97 C
1957
11.6 C
-0.14 C
1958
12.9 C
+1.14 C
1961
11.7 C
-0.02 C
1962
11.4 C
-0.33 C
1964
11.1 C
-0.68 C
1966
12.1 C
+0.34 C
1967
12.2 C
+0.40 C
1968
12.1 C
+0.35 C
1969
11.6 C
-0.14 C
1970
11.6 C
-0.20 C
1971
11.0 C
-0.79 C
1972
11.5 C
-0.25 C
1973
11.7 C
-0.03 C
1974
11.8 C
+0.01 C
1975
11.4 C
-0.35 C
1976
11.6 C
-0.17 C
1977
12.0 C
+0.23 C
1978
12.3 C
+0.54 C
1979
12.3 C
+0.56 C
1980
12.0 C
+0.22 C
1981
12.5 C
+0.77 C
1982
11.4 C
-0.34 C
1984
11.6 C
-0.11 C
1985
10.3 C
-1.47 C
1986
12.9 C
+1.19 C
1987
12.7 C
+0.96 C
1988
12.1 C
+0.31 C
1989
12.0 C
+0.21 C
1990
12.0 C
+0.27 C
1991
11.9 C
+0.14 C
1992
13.3 C
+1.57 C
1993
12.7 C
+0.93 C
1994
13.0 C
+1.22 C
The annual mean temperature here has risen by 0.2 C (0.1 to 0.3) per decade over 1941 to 1994. In Fahrenheit: 0.4 F (0.2 to 0.6) per decade. The slope is a straight line fitted to 44 complete years; the brackets give its 95 percent interval.
Fitted temperature trends per decade at Tidewater
Measure
Per decade (C)
Per decade (F)
Period
Complete years
Reading
Annual mean temperature
0.2 C (0.1 to 0.3) per decade
0.4 F (0.2 to 0.6) per decade
1941 to 1994
44
Rise
Mean daily maximum
0.3 C (0.2 to 0.5) per decade
0.6 F (0.3 to 0.9) per decade
1941 to 1994
44
Rise
Mean daily minimum
0.10 C (-0.02 to 0.21) per decade
0.17 F (-0.04 to 0.38) per decade
1941 to 1994
44
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
1940 to 2002
Yearly extremes at Tidewater: the record and the median year
Measure
Record
Year of the record
Median year
Years with a value
Hottest day (TXx)
41.1 C (106.0 F)
2002
35.0 C (95.0 F)
60
Coldest night (TNn)
-15.0 C (5.0 F)
1972
-6.1 C (21.0 F)
60
Wettest day (Rx1day)
146.3 mm (5.8 in)
1972
81.9 mm (3.2 in)
60
Wettest five days (Rx5day)
348.2 mm (13.7 in)
1974
208.6 mm (8.2 in)
60
Longest dry spell (CDD)
79 days
1967
33 days
60
Hottest day (TXx)
The hottest day of the year at Tidewater, 1940 to 2002. The record is 41.1 C (106.0 F) in 2002, marked on the chart; the median year is 35.0 C (95.0 F).
Hottest day (TXx) at Tidewater by year
Year
Hottest day (TXx)
1940
36.1 C (97.0 F)
1941
34.4 C (93.9 F)
1942
40.6 C (105.1 F)
1943
35.0 C (95.0 F)
1944
35.6 C (96.1 F)
1945
33.3 C (91.9 F)
1946
34.4 C (93.9 F)
1947
33.3 C (91.9 F)
1948
35.0 C (95.0 F)
1949
35.0 C (95.0 F)
1950
35.0 C (95.0 F)
1951
36.1 C (97.0 F)
1952
33.3 C (91.9 F)
1953
33.9 C (93.0 F)
1954
28.9 C (84.0 F)
1955
36.1 C (97.0 F)
1956
35.0 C (95.0 F)
1957
35.6 C (96.1 F)
1958
37.8 C (100.0 F)
1959
33.3 C (91.9 F)
1960
32.2 C (90.0 F)
1961
32.2 C (90.0 F)
1962
35.0 C (95.0 F)
1963
33.3 C (91.9 F)
1964
30.0 C (86.0 F)
1965
32.2 C (90.0 F)
1966
34.4 C (93.9 F)
1967
35.6 C (96.1 F)
1968
35.0 C (95.0 F)
1969
32.8 C (91.0 F)
1970
35.6 C (96.1 F)
1971
31.7 C (89.1 F)
1972
36.1 C (97.0 F)
1973
37.2 C (99.0 F)
1974
33.3 C (91.9 F)
1975
33.3 C (91.9 F)
1976
33.9 C (93.0 F)
1977
39.4 C (102.9 F)
1978
38.3 C (100.9 F)
1979
34.4 C (93.9 F)
1980
33.9 C (93.0 F)
1981
40.0 C (104.0 F)
1982
33.3 C (91.9 F)
1983
35.0 C (95.0 F)
1984
31.1 C (88.0 F)
1985
36.7 C (98.1 F)
1986
33.3 C (91.9 F)
1987
35.0 C (95.0 F)
1988
38.3 C (100.9 F)
1989
35.0 C (95.0 F)
1990
36.1 C (97.0 F)
1991
36.7 C (98.1 F)
1992
37.2 C (99.0 F)
1993
35.0 C (95.0 F)
1994
36.7 C (98.1 F)
1995
37.2 C (99.0 F)
1998
31.1 C (88.0 F)
1999
35.0 C (95.0 F)
2000
33.3 C (91.9 F)
2002
41.1 C (106.0 F)
Coldest night (TNn)
The coldest night of the year at Tidewater, 1940 to 2002. The record is -15.0 C (5.0 F) in 1972, marked on the chart; the median year is -6.1 C (21.0 F).
Coldest night (TNn) at Tidewater by year
Year
Coldest night (TNn)
1940
-6.1 C (21.0 F)
1941
-2.2 C (28.0 F)
1942
-6.7 C (19.9 F)
1943
0.0 C (32.0 F)
1944
-3.9 C (25.0 F)
1945
-4.4 C (24.1 F)
1946
-6.1 C (21.0 F)
1947
-6.1 C (21.0 F)
1948
-6.1 C (21.0 F)
1949
-11.1 C (12.0 F)
1950
-13.3 C (8.1 F)
1951
-8.9 C (16.0 F)
1952
-8.3 C (17.1 F)
1953
0.0 C (32.0 F)
1954
-3.9 C (25.0 F)
1955
-7.2 C (19.0 F)
1956
-8.9 C (16.0 F)
1957
-10.6 C (12.9 F)
1958
-3.9 C (25.0 F)
1959
-5.6 C (21.9 F)
1960
-6.7 C (19.9 F)
1961
-6.1 C (21.0 F)
1962
-10.0 C (14.0 F)
1963
-11.7 C (10.9 F)
1964
-8.3 C (17.1 F)
1965
-5.6 C (21.9 F)
1966
-2.2 C (28.0 F)
1967
-4.4 C (24.1 F)
1968
-3.3 C (26.1 F)
1969
-6.7 C (19.9 F)
1970
-3.3 C (26.1 F)
1971
-5.0 C (23.0 F)
1972
-15.0 C (5.0 F)
1973
-5.6 C (21.9 F)
1974
-9.4 C (15.1 F)
1975
-1.7 C (28.9 F)
1976
-3.9 C (25.0 F)
1977
-6.7 C (19.9 F)
1978
-11.1 C (12.0 F)
1979
-11.1 C (12.0 F)
1980
-11.7 C (10.9 F)
1981
-2.2 C (28.0 F)
1982
-6.1 C (21.0 F)
1983
-12.8 C (9.0 F)
1984
-7.2 C (19.0 F)
1985
-7.8 C (18.0 F)
1986
-3.3 C (26.1 F)
1987
-3.9 C (25.0 F)
1988
-4.4 C (24.1 F)
1989
-12.2 C (10.0 F)
1990
-13.3 C (8.1 F)
1991
-9.4 C (15.1 F)
1992
-2.2 C (28.0 F)
1993
-5.6 C (21.9 F)
1994
-4.4 C (24.1 F)
1995
-1.1 C (30.0 F)
1998
-9.4 C (15.1 F)
1999
-3.3 C (26.1 F)
2000
-1.7 C (28.9 F)
2002
2.8 C (37.0 F)
Wettest day (Rx1day)
The wettest day of the year at Tidewater, 1940 to 2002. The record is 146.3 mm (5.8 in) in 1972, marked on the chart; the median year is 81.9 mm (3.2 in).
Wettest day (Rx1day) at Tidewater by year
Year
Wettest day (Rx1day)
1940
56.6 mm (2.2 in)
1941
85.3 mm (3.4 in)
1942
50.8 mm (2.0 in)
1943
101.6 mm (4.0 in)
1944
65.5 mm (2.6 in)
1945
97.8 mm (3.9 in)
1946
96.8 mm (3.8 in)
1947
71.4 mm (2.8 in)
1948
85.9 mm (3.4 in)
1949
105.7 mm (4.2 in)
1950
84.3 mm (3.3 in)
1951
78.7 mm (3.1 in)
1952
74.7 mm (2.9 in)
1953
86.4 mm (3.4 in)
1954
91.4 mm (3.6 in)
1955
81.8 mm (3.2 in)
1956
86.4 mm (3.4 in)
1957
95.5 mm (3.8 in)
1958
73.7 mm (2.9 in)
1959
86.4 mm (3.4 in)
1960
97.8 mm (3.9 in)
1961
102.9 mm (4.1 in)
1962
100.3 mm (3.9 in)
1963
64.3 mm (2.5 in)
1964
94.0 mm (3.7 in)
1965
81.8 mm (3.2 in)
1966
87.1 mm (3.4 in)
1967
93.5 mm (3.7 in)
1968
96.3 mm (3.8 in)
1969
79.2 mm (3.1 in)
1970
88.9 mm (3.5 in)
1971
81.3 mm (3.2 in)
1972
146.3 mm (5.8 in)
1973
118.1 mm (4.6 in)
1974
118.9 mm (4.7 in)
1975
98.8 mm (3.9 in)
1976
77.5 mm (3.1 in)
1977
74.4 mm (2.9 in)
1978
62.7 mm (2.5 in)
1979
66.0 mm (2.6 in)
1980
105.4 mm (4.1 in)
1981
73.7 mm (2.9 in)
1982
80.3 mm (3.2 in)
1983
92.7 mm (3.6 in)
1984
86.4 mm (3.4 in)
1985
61.0 mm (2.4 in)
1986
59.9 mm (2.4 in)
1987
65.3 mm (2.6 in)
1988
61.5 mm (2.4 in)
1989
79.2 mm (3.1 in)
1990
71.1 mm (2.8 in)
1991
57.2 mm (2.3 in)
1992
57.9 mm (2.3 in)
1993
55.9 mm (2.2 in)
1994
61.0 mm (2.4 in)
1995
61.0 mm (2.4 in)
1998
88.6 mm (3.5 in)
1999
112.8 mm (4.4 in)
2000
82.0 mm (3.2 in)
2002
73.7 mm (2.9 in)
Wettest five days (Rx5day)
The wettest five days of the year at Tidewater, 1940 to 2002. The record is 348.2 mm (13.7 in) in 1974, marked on the chart; the median year is 208.6 mm (8.2 in).
Wettest five days (Rx5day) at Tidewater by year
Year
Wettest five days (Rx5day)
1940
116.3 mm (4.6 in)
1941
211.8 mm (8.3 in)
1942
143.2 mm (5.6 in)
1943
262.6 mm (10.3 in)
1944
158.0 mm (6.2 in)
1945
262.1 mm (10.3 in)
1946
313.0 mm (12.3 in)
1947
288.3 mm (11.4 in)
1948
199.6 mm (7.9 in)
1949
242.4 mm (9.5 in)
1950
249.1 mm (9.8 in)
1951
195.3 mm (7.7 in)
1952
200.4 mm (7.9 in)
1953
217.5 mm (8.6 in)
1954
180.9 mm (7.1 in)
1955
213.9 mm (8.4 in)
1956
230.9 mm (9.1 in)
1957
243.2 mm (9.6 in)
1958
183.0 mm (7.2 in)
1959
237.9 mm (9.4 in)
1960
238.3 mm (9.4 in)
1961
265.2 mm (10.4 in)
1962
171.4 mm (6.7 in)
1963
195.8 mm (7.7 in)
1964
268.2 mm (10.6 in)
1965
233.7 mm (9.2 in)
1966
209.3 mm (8.2 in)
1967
240.4 mm (9.5 in)
1968
189.0 mm (7.4 in)
1969
186.9 mm (7.4 in)
1970
222.5 mm (8.8 in)
1971
210.2 mm (8.3 in)
1972
242.4 mm (9.5 in)
1973
286.5 mm (11.3 in)
1974
348.2 mm (13.7 in)
1975
308.7 mm (12.2 in)
1976
180.4 mm (7.1 in)
1977
194.0 mm (7.6 in)
1978
140.4 mm (5.5 in)
1979
147.8 mm (5.8 in)
1980
240.6 mm (9.5 in)
1981
184.2 mm (7.3 in)
1982
222.1 mm (8.7 in)
1983
207.8 mm (8.2 in)
1984
171.9 mm (6.8 in)
1985
162.6 mm (6.4 in)
1986
169.4 mm (6.7 in)
1987
220.9 mm (8.7 in)
1988
154.5 mm (6.1 in)
1989
157.8 mm (6.2 in)
1990
228.1 mm (9.0 in)
1991
135.6 mm (5.3 in)
1992
150.1 mm (5.9 in)
1993
175.0 mm (6.9 in)
1994
146.1 mm (5.8 in)
1995
215.1 mm (8.5 in)
1998
167.6 mm (6.6 in)
1999
219.5 mm (8.6 in)
2000
142.9 mm (5.6 in)
2002
134.6 mm (5.3 in)
Longest dry spell (CDD)
The longest dry spell of the year at Tidewater, 1940 to 2002. The record is 79 days in 1967, marked on the chart; the median year is 33 days.
Longest dry spell (CDD) at Tidewater by year
Year
Longest dry spell (CDD)
1940
42 days
1941
58 days
1942
13 days
1943
27 days
1944
30 days
1945
37 days
1946
48 days
1947
28 days
1948
20 days
1949
19 days
1950
31 days
1951
52 days
1952
56 days
1953
23 days
1954
28 days
1955
47 days
1956
26 days
1957
40 days
1958
33 days
1959
27 days
1960
57 days
1961
29 days
1962
22 days
1963
19 days
1964
19 days
1965
31 days
1966
38 days
1967
79 days
1968
24 days
1969
23 days
1970
79 days
1971
40 days
1972
35 days
1973
58 days
1974
43 days
1975
33 days
1976
26 days
1977
45 days
1978
26 days
1979
34 days
1980
44 days
1981
70 days
1982
33 days
1983
31 days
1984
36 days
1985
52 days
1986
43 days
1987
35 days
1988
33 days
1989
23 days
1990
29 days
1991
45 days
1992
33 days
1993
26 days
1994
32 days
1995
18 days
1998
26 days
1999
28 days
2000
26 days
2002
36 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
44 years with a frost
Across 44 years with a frost, the median last spring frost at Tidewater falls on 8 April and the median first autumn frost on 15 November, which leaves a median of 222 days between them.
Fitted over all years, the growing season changes by -1.8 days per decade at this station.
Frost dates and growing season at Tidewater
Measure
Median, all years
Earliest period
Recent period (1962 to 1994)
Recent against earliest
Fitted trend
Last spring frost
8 April
n/a
16 April
n/a
+1.1 days per decade
First autumn frost
15 November
n/a
16 November
n/a
-0.7 days per decade
Growing days
222 days
n/a
221 days
n/a
-1.8 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
52 years, 1941 to 1994
A day with at least 81.9 mm (3.2 in) of rain is expected about once in 2 years. A day with at least 131.7 mm (5.2 in) of rain is expected about once in 100 years.
Rainfall return levels at Tidewater: the daily rain expected about once in a given number of years
Expected about once in
A day with at least
Note
2 years
81.9 mm (3.2 in)
5 years
97.8 mm (3.9 in)
10 years
107.2 mm (4.2 in)
25 years
117.9 mm (4.6 in)
50 years
125.1 mm (4.9 in)
100 years
131.7 mm (5.2 in)
Longer than the 52 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, 52 years of values from 1941 to 1994.
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: 146.3 mm (5.8 in) in 1972; 118.9 mm (4.7 in) in 1974; 118.1 mm (4.6 in) in 1973.
Station Changes
No change in the annual mean temperature of this station was found against its neighbours.
Download the Data
Data for Tidewater standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Tidewater 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 2026-10-13 (13 October 2026). Records are computed by this site and are not official.