Record envelope, standing records and threshold days for Warm Springs Rsvr (USC00359046), Oregon, United States, with 48 years of record.
Key Facts for Warm Springs Rsvr
Warm Springs Rsvr (USC00359046) is a weather station in Oregon, United States at 43.57 latitude and -118.20 longitude, 1,019 m (3,343 ft) above sea level.
The station reports from 1927 to 1974, 48 years of record.
1,464 records set at Warm Springs Rsvr still stand.
Records are tracked for tmax, tmin, prcp, snow, snwd: an element needs 30 years of data to be eligible.
Warm Springs Rsvr tied a daily record high maximum temperature of 36.1 C (97.0 F) on 28 August 1974.
About the Station
Location: Oregon, United States, 43.57 latitude, -118.20 longitude.
Elevation: 1,019 m (3,343 ft).
Period of record: 1927 to 1974, 48 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 Warm Springs Rsvr. 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 Warm Springs Rsvr, with 2026 drawn through them
Month
Highest record high
Lowest record low
2026 highest maximum
2026 lowest minimum
Jan
16.1 C (61.0 F)
-40.0 C (-40.0 F)
n/a
n/a
Feb
20.6 C (69.1 F)
-36.7 C (-34.1 F)
n/a
n/a
Mar
26.7 C (80.1 F)
-17.2 C (1.0 F)
n/a
n/a
Apr
31.1 C (88.0 F)
-10.6 C (12.9 F)
n/a
n/a
May
36.7 C (98.1 F)
-8.3 C (17.1 F)
n/a
n/a
Jun
40.6 C (105.1 F)
-2.8 C (27.0 F)
n/a
n/a
Jul
42.8 C (109.0 F)
1.1 C (34.0 F)
n/a
n/a
Aug
42.2 C (108.0 F)
-1.1 C (30.0 F)
n/a
n/a
Sep
40.6 C (105.1 F)
-7.8 C (18.0 F)
n/a
n/a
Oct
32.2 C (90.0 F)
-13.3 C (8.1 F)
n/a
n/a
Nov
22.8 C (73.0 F)
-26.1 C (-15.0 F)
n/a
n/a
Dec
18.3 C (64.9 F)
-28.3 C (-18.9 F)
n/a
n/a
Which Years Hold Standing Records
1,464 standing records
Year with most
1,464 records at Warm Springs Rsvr still stand. 1934 holds the most, with 66.
Standing records at Warm Springs Rsvr by the year they were set
Year set
Standing records
1927
41
1928
31
1929
46
1930
47
1931
65
1932
55
1933
45
1934
66
1935
31
1936
41
1937
38
1938
26
1939
31
1940
33
1941
24
1942
25
1943
32
1944
19
1945
28
1946
21
1947
26
1948
27
1949
46
1950
49
1951
25
1952
37
1953
40
1954
39
1955
45
1956
29
1957
25
1958
19
1959
24
1960
25
1961
26
1962
27
1963
24
1964
28
1965
34
1966
23
1967
17
1968
13
1969
7
1970
18
1971
13
1972
12
1973
6
1974
15
All-Time Record Progression
1 new records
1 all-time records were set at Warm Springs Rsvr between 22 January 1962 and 22 January 1962. Each dot is a new record.
When Warm Springs Rsvr set new all-time records
Date
Kind
Detail
1962-01-22
Record low maximum temperature
Record low maximum temperature -23.3 C (-9.9 F)
Wettest Day of Each Month
Oct: 33.5 mm (1.3 in)
The wettest day on record for each calendar month at Warm Springs Rsvr. The most was 33.5 mm (1.3 in) on 13 October 1956.
Record daily precipitation for each month at Warm Springs Rsvr
Month
Record daily precipitation (mm)
Date
Jan
24.6 mm (1.0 in)
25 January 1958
Feb
18.3 mm (0.7 in)
12 February 1947
Mar
22.9 mm (0.9 in)
26 March 1928
Apr
23.6 mm (0.9 in)
27 April 1932
May
23.6 mm (0.9 in)
19 May 1953
Jun
29.0 mm (1.1 in)
10 June 1954
Jul
19.1 mm (0.8 in)
12 July 1949
Aug
24.1 mm (0.9 in)
11 August 1941
Sep
27.4 mm (1.1 in)
9 September 1942
Oct
33.5 mm (1.3 in)
13 October 1956
Nov
20.3 mm (0.8 in)
1 November 1948
Dec
30.7 mm (1.2 in)
23 December 1964
Period of Record Coverage
1927 to 1974
Complete yearUnder 90 percent of days
48 years of record at Warm Springs Rsvr, 1927 to 1974. 18 years have data for under 90 percent of days and are left out of rankings: 1927, 1928, 1929, 1958, 1959, 1961, 1962, 1963 and others.
Cooler than the station meanWarmer than the station mean
One stripe for each of 32 complete years at Warm Springs Rsvr, 1931 to 1965. Blue stripes are years cooler than the station's own mean of 9.4 C (49.0 F); red stripes are warmer. The coolest year was 1964, at 8.3 C (46.9 F), and the warmest was 1934, at 11.7 C (53.1 F). The strongest colour marks a difference of 2.3 C (4.1 F).
Annual mean temperature at Warm Springs Rsvr as warming stripes, 1931 to 1965
Year
Annual mean temperature
Difference from the station mean
1931
8.8 C
-0.62 C
1932
8.4 C
-1.06 C
1933
9.2 C
-0.23 C
1934
11.7 C
+2.29 C
1935
8.7 C
-0.71 C
1936
10.1 C
+0.69 C
1937
9.5 C
+0.04 C
1938
10.2 C
+0.74 C
1939
10.6 C
+1.15 C
1940
10.9 C
+1.42 C
1941
9.8 C
+0.31 C
1942
8.9 C
-0.50 C
1943
9.4 C
-0.02 C
1944
8.6 C
-0.89 C
1945
9.1 C
-0.30 C
1946
9.3 C
-0.15 C
1947
9.7 C
+0.30 C
1948
9.0 C
-0.43 C
1950
9.9 C
+0.42 C
1951
9.8 C
+0.31 C
1952
9.1 C
-0.33 C
1953
10.4 C
+0.92 C
1954
10.0 C
+0.57 C
1955
9.1 C
-0.34 C
1956
9.4 C
-0.02 C
1957
8.6 C
-0.86 C
1960
8.9 C
-0.55 C
1961
9.7 C
+0.28 C
1962
9.0 C
-0.49 C
1963
9.3 C
-0.12 C
1964
8.3 C
-1.17 C
1965
8.8 C
-0.62 C
The fitted trend in annual mean temperature here over 1931 to 1965 is -0.2 C (-0.5 to 0.1) per decade. The interval includes zero, so the trend is not clearly different from zero. In Fahrenheit: -0.4 F (-0.8 to 0.1) per decade. The slope is a straight line fitted to 32 complete years; the brackets give its 95 percent interval.
Fitted temperature trends per decade at Warm Springs Rsvr
Measure
Per decade (C)
Per decade (F)
Period
Complete years
Reading
Annual mean temperature
-0.2 C (-0.5 to 0.1) per decade
-0.4 F (-0.8 to 0.1) per decade
1931 to 1965
32
Not clearly different from zero
Mean daily maximum
-0.4 C (-0.6 to -0.1) per decade
-0.7 F (-1.1 to -0.2) per decade
1931 to 1965
32
Fall
Mean daily minimum
-0.04 C (-0.34 to 0.27) per decade
-0.1 F (-0.6 to 0.5) per decade
1931 to 1965
32
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
1927 to 1974
Yearly extremes at Warm Springs Rsvr: 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)
1931
39.4 C (102.9 F)
48
Coldest night (TNn)
-40.0 C (-40.0 F)
1930
-19.1 C (-2.5 F)
48
Wettest day (Rx1day)
33.5 mm (1.3 in)
1956
20.1 mm (0.8 in)
48
Wettest five days (Rx5day)
57.7 mm (2.3 in)
1962
28.1 mm (1.1 in)
48
Longest dry spell (CDD)
174 days
1929
59 days
48
Hottest day (TXx)
The hottest day of the year at Warm Springs Rsvr, 1927 to 1974. The record is 42.8 C (109.0 F) in 1931, marked on the chart; the median year is 39.4 C (102.9 F).
Hottest day (TXx) at Warm Springs Rsvr by year
Year
Hottest day (TXx)
1927
38.3 C (100.9 F)
1928
42.2 C (108.0 F)
1929
39.4 C (102.9 F)
1930
40.6 C (105.1 F)
1931
42.8 C (109.0 F)
1932
40.0 C (104.0 F)
1933
41.1 C (106.0 F)
1934
42.2 C (108.0 F)
1935
41.7 C (107.1 F)
1936
42.2 C (108.0 F)
1937
39.4 C (102.9 F)
1938
39.4 C (102.9 F)
1939
40.6 C (105.1 F)
1940
40.0 C (104.0 F)
1941
37.2 C (99.0 F)
1942
39.4 C (102.9 F)
1943
38.9 C (102.0 F)
1944
36.1 C (97.0 F)
1945
38.9 C (102.0 F)
1946
41.1 C (106.0 F)
1947
37.8 C (100.0 F)
1948
36.7 C (98.1 F)
1949
39.4 C (102.9 F)
1950
40.0 C (104.0 F)
1951
39.4 C (102.9 F)
1952
37.2 C (99.0 F)
1953
40.6 C (105.1 F)
1954
38.9 C (102.0 F)
1955
40.6 C (105.1 F)
1956
39.4 C (102.9 F)
1957
36.7 C (98.1 F)
1958
39.4 C (102.9 F)
1959
40.6 C (105.1 F)
1960
41.1 C (106.0 F)
1961
42.2 C (108.0 F)
1962
38.3 C (100.9 F)
1963
37.8 C (100.0 F)
1964
37.8 C (100.0 F)
1965
36.7 C (98.1 F)
1966
39.4 C (102.9 F)
1967
40.6 C (105.1 F)
1968
40.6 C (105.1 F)
1969
39.4 C (102.9 F)
1970
39.4 C (102.9 F)
1971
39.4 C (102.9 F)
1972
40.6 C (105.1 F)
1973
38.3 C (100.9 F)
1974
39.4 C (102.9 F)
Coldest night (TNn)
The coldest night of the year at Warm Springs Rsvr, 1927 to 1974. The record is -40.0 C (-40.0 F) in 1930, marked on the chart; the median year is -19.1 C (-2.5 F).
Coldest night (TNn) at Warm Springs Rsvr by year
Year
Coldest night (TNn)
1927
-17.8 C (0.0 F)
1928
-24.4 C (-11.9 F)
1929
-26.7 C (-16.1 F)
1930
-40.0 C (-40.0 F)
1931
-26.7 C (-16.1 F)
1932
-28.3 C (-18.9 F)
1933
-36.7 C (-34.1 F)
1934
-14.4 C (6.1 F)
1935
-29.4 C (-20.9 F)
1936
-25.6 C (-14.1 F)
1937
-33.9 C (-29.0 F)
1938
-15.6 C (3.9 F)
1939
-16.7 C (1.9 F)
1940
-17.8 C (0.0 F)
1941
-13.9 C (7.0 F)
1942
-22.8 C (-9.0 F)
1943
-23.9 C (-11.0 F)
1944
-22.8 C (-9.0 F)
1945
-17.8 C (0.0 F)
1946
-17.8 C (0.0 F)
1947
-16.7 C (1.9 F)
1948
-20.0 C (-4.0 F)
1949
-35.0 C (-31.0 F)
1950
-30.6 C (-23.1 F)
1951
-18.9 C (-2.0 F)
1952
-27.8 C (-18.0 F)
1953
-12.2 C (10.0 F)
1954
-18.9 C (-2.0 F)
1955
-26.1 C (-15.0 F)
1956
-30.0 C (-22.0 F)
1957
-37.8 C (-36.0 F)
1958
-14.4 C (6.1 F)
1959
-17.8 C (0.0 F)
1960
-20.0 C (-4.0 F)
1961
-18.9 C (-2.0 F)
1962
-38.3 C (-36.9 F)
1963
-22.2 C (-8.0 F)
1964
-19.4 C (-2.9 F)
1965
-24.4 C (-11.9 F)
1966
-15.0 C (5.0 F)
1967
-5.0 C (23.0 F)
1968
-9.4 C (15.1 F)
1969
-1.7 C (28.9 F)
1970
-9.4 C (15.1 F)
1971
-2.8 C (27.0 F)
1972
-3.9 C (25.0 F)
1973
-2.2 C (28.0 F)
1974
-4.4 C (24.1 F)
Wettest day (Rx1day)
The wettest day of the year at Warm Springs Rsvr, 1927 to 1974. The record is 33.5 mm (1.3 in) in 1956, marked on the chart; the median year is 20.1 mm (0.8 in).
Wettest day (Rx1day) at Warm Springs Rsvr by year
Year
Wettest day (Rx1day)
1927
25.4 mm (1.0 in)
1928
22.9 mm (0.9 in)
1929
20.6 mm (0.8 in)
1930
22.4 mm (0.9 in)
1931
17.5 mm (0.7 in)
1932
23.6 mm (0.9 in)
1933
23.9 mm (0.9 in)
1934
25.4 mm (1.0 in)
1935
13.5 mm (0.5 in)
1936
20.8 mm (0.8 in)
1937
20.6 mm (0.8 in)
1938
16.3 mm (0.6 in)
1939
11.9 mm (0.5 in)
1940
27.9 mm (1.1 in)
1941
24.1 mm (0.9 in)
1942
27.4 mm (1.1 in)
1943
12.2 mm (0.5 in)
1944
21.3 mm (0.8 in)
1945
14.0 mm (0.6 in)
1946
8.4 mm (0.33 in)
1947
18.8 mm (0.7 in)
1948
20.3 mm (0.8 in)
1949
20.3 mm (0.8 in)
1950
17.8 mm (0.7 in)
1951
10.4 mm (0.4 in)
1952
20.3 mm (0.8 in)
1953
23.6 mm (0.9 in)
1954
29.0 mm (1.1 in)
1955
19.1 mm (0.8 in)
1956
33.5 mm (1.3 in)
1957
19.8 mm (0.8 in)
1958
24.6 mm (1.0 in)
1959
20.3 mm (0.8 in)
1960
16.5 mm (0.6 in)
1961
11.2 mm (0.4 in)
1962
20.3 mm (0.8 in)
1963
19.1 mm (0.8 in)
1964
30.7 mm (1.2 in)
1965
19.3 mm (0.8 in)
1966
25.9 mm (1.0 in)
1967
12.7 mm (0.5 in)
1968
8.1 mm (0.32 in)
1969
16.3 mm (0.6 in)
1970
12.7 mm (0.5 in)
1971
13.5 mm (0.5 in)
1972
8.6 mm (0.34 in)
1973
10.7 mm (0.4 in)
1974
11.2 mm (0.4 in)
Wettest five days (Rx5day)
The wettest five days of the year at Warm Springs Rsvr, 1927 to 1974. The record is 57.7 mm (2.3 in) in 1962, marked on the chart; the median year is 28.1 mm (1.1 in).
Wettest five days (Rx5day) at Warm Springs Rsvr by year
Year
Wettest five days (Rx5day)
1927
27.7 mm (1.1 in)
1928
34.8 mm (1.4 in)
1929
37.4 mm (1.5 in)
1930
28.5 mm (1.1 in)
1931
25.7 mm (1.0 in)
1932
34.8 mm (1.4 in)
1933
26.4 mm (1.0 in)
1934
35.3 mm (1.4 in)
1935
27.2 mm (1.1 in)
1936
22.8 mm (0.9 in)
1937
40.2 mm (1.6 in)
1938
35.0 mm (1.4 in)
1939
15.2 mm (0.6 in)
1940
49.0 mm (1.9 in)
1941
28.0 mm (1.1 in)
1942
35.8 mm (1.4 in)
1943
26.8 mm (1.1 in)
1944
27.6 mm (1.1 in)
1945
19.8 mm (0.8 in)
1946
12.6 mm (0.5 in)
1947
33.6 mm (1.3 in)
1948
37.6 mm (1.5 in)
1949
20.6 mm (0.8 in)
1950
31.0 mm (1.2 in)
1951
17.5 mm (0.7 in)
1952
32.3 mm (1.3 in)
1953
34.3 mm (1.4 in)
1954
36.4 mm (1.4 in)
1955
38.2 mm (1.5 in)
1956
53.3 mm (2.1 in)
1957
29.3 mm (1.2 in)
1958
33.2 mm (1.3 in)
1959
28.2 mm (1.1 in)
1960
26.7 mm (1.1 in)
1961
15.8 mm (0.6 in)
1962
57.7 mm (2.3 in)
1963
28.9 mm (1.1 in)
1964
51.5 mm (2.0 in)
1965
35.3 mm (1.4 in)
1966
28.0 mm (1.1 in)
1967
17.2 mm (0.7 in)
1968
12.0 mm (0.5 in)
1969
25.7 mm (1.0 in)
1970
15.8 mm (0.6 in)
1971
22.6 mm (0.9 in)
1972
15.2 mm (0.6 in)
1973
12.5 mm (0.5 in)
1974
19.8 mm (0.8 in)
Longest dry spell (CDD)
The longest dry spell of the year at Warm Springs Rsvr, 1927 to 1974. The record is 174 days in 1929, marked on the chart; the median year is 59 days.
Longest dry spell (CDD) at Warm Springs Rsvr by year
Year
Longest dry spell (CDD)
1927
38 days
1928
95 days
1929
174 days
1930
49 days
1931
93 days
1932
69 days
1933
77 days
1934
102 days
1935
69 days
1936
49 days
1937
34 days
1938
63 days
1939
43 days
1940
31 days
1941
28 days
1942
41 days
1943
81 days
1944
89 days
1945
28 days
1946
33 days
1947
61 days
1948
40 days
1949
58 days
1950
60 days
1951
48 days
1952
63 days
1953
49 days
1954
65 days
1955
48 days
1956
45 days
1957
107 days
1958
31 days
1959
74 days
1960
63 days
1961
38 days
1962
48 days
1963
48 days
1964
60 days
1965
40 days
1966
39 days
1967
81 days
1968
42 days
1969
72 days
1970
59 days
1971
66 days
1972
60 days
1973
31 days
1974
81 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
32 years with a frost
Across 32 years with a frost, the median last spring frost at Warm Springs Rsvr falls on 21 May and the median first autumn frost on 24 September, which leaves a median of 129 days between them.
Fitted over all years, the growing season changes by +8.1 days per decade at this station.
Frost dates and growing season at Warm Springs Rsvr
Measure
Median, all years
Earliest period
Recent period (1933 to 1965)
Recent against earliest
Fitted trend
Last spring frost
21 May
n/a
19 May
n/a
-3.5 days per decade
First autumn frost
24 September
n/a
25 September
n/a
+4.6 days per decade
Growing days
129 days
n/a
131 days
n/a
+8.1 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, 1928 to 1965
A day with at least 20.3 mm (0.8 in) of rain is expected about once in 2 years. A day with at least 32.4 mm (1.3 in) of rain is expected about once in 100 years.
Rainfall return levels at Warm Springs Rsvr: the daily rain expected about once in a given number of years
Expected about once in
A day with at least
Note
2 years
20.3 mm (0.8 in)
5 years
25.1 mm (1.0 in)
10 years
27.6 mm (1.1 in)
25 years
29.9 mm (1.2 in)
50 years
31.3 mm (1.2 in)
Longer than the 38 years of record
100 years
32.4 mm (1.3 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 1928 to 1965.
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: 33.5 mm (1.3 in) in 1956; 30.7 mm (1.2 in) in 1964; 29.0 mm (1.1 in) in 1954.
Download the Data
Data for Warm Springs Rsvr standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Warm Springs Rsvr 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.