Record envelope, standing records and threshold days for Chiloquin 1 E (USC00351571), Oregon, United States, with 67 years of record.
Key Facts for Chiloquin 1 E
Chiloquin 1 E (USC00351571) is a weather station in Oregon, United States at 42.58 latitude and -121.87 longitude, 1,278 m (4,193 ft) above sea level.
The station reports from 1913 to 1979, 67 years of record.
1,464 records set at Chiloquin 1 E still stand.
Records are tracked for tmax, tmin, prcp, snow, snwd: an element needs 30 years of data to be eligible.
Chiloquin 1 E tied a daily record high maximum temperature of 11.1 C (52.0 F) on 20 December 1979.
About the Station
Location: Oregon, United States, 42.58 latitude, -121.87 longitude.
Elevation: 1,278 m (4,193 ft).
Period of record: 1913 to 1979, 67 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 Chiloquin 1 E. 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 Chiloquin 1 E, with 2026 drawn through them
Month
Highest record high
Lowest record low
2026 highest maximum
2026 lowest minimum
Jan
19.4 C (66.9 F)
-33.3 C (-27.9 F)
n/a
n/a
Feb
17.2 C (63.0 F)
-27.2 C (-17.0 F)
n/a
n/a
Mar
23.9 C (75.0 F)
-24.4 C (-11.9 F)
n/a
n/a
Apr
30.0 C (86.0 F)
-16.7 C (1.9 F)
n/a
n/a
May
31.7 C (89.1 F)
-12.2 C (10.0 F)
n/a
n/a
Jun
37.8 C (100.0 F)
-7.2 C (19.0 F)
n/a
n/a
Jul
39.4 C (102.9 F)
-5.0 C (23.0 F)
n/a
n/a
Aug
38.9 C (102.0 F)
-6.7 C (19.9 F)
n/a
n/a
Sep
36.7 C (98.1 F)
-11.7 C (10.9 F)
n/a
n/a
Oct
30.6 C (87.1 F)
-15.0 C (5.0 F)
n/a
n/a
Nov
23.9 C (75.0 F)
-26.1 C (-15.0 F)
n/a
n/a
Dec
15.0 C (59.0 F)
-30.0 C (-22.0 F)
n/a
n/a
Which Years Hold Standing Records
1,464 standing records
Year with most
1,464 records at Chiloquin 1 E still stand. 1924 holds the most, with 54.
Standing records at Chiloquin 1 E by the year they were set
Year set
Standing records
1913
10
1914
23
1915
19
1916
39
1917
43
1918
39
1919
40
1920
23
1921
17
1922
33
1923
14
1924
54
1925
20
1926
26
1927
17
1928
11
1929
30
1930
27
1931
27
1932
29
1933
32
1934
24
1935
26
1936
30
1937
28
1938
21
1939
14
1940
9
1941
13
1942
21
1943
18
1944
19
1945
31
1946
16
1947
29
1948
14
1949
25
1950
24
1951
11
1952
54
1953
13
1954
22
1955
24
1956
24
1957
22
1958
13
1959
20
1960
27
1961
18
1962
25
1963
15
1964
23
1965
15
1966
22
1967
10
1968
13
1969
14
1970
18
1971
29
1972
16
1973
8
1974
20
1975
15
1976
16
1977
5
1978
6
1979
11
All-Time Record Progression
6 new records
6 all-time records were set at Chiloquin 1 E between 21 July 1946 and 20 June 1967. Each dot is a new record.
When Chiloquin 1 E set new all-time records
Date
Kind
Detail
1946-07-21
Record high maximum temperature
Record high maximum temperature 39.4 C (102.9 F)
1946-07-25
Record high minimum temperature
Record high minimum temperature 15.6 C (60.1 F)
1952-07-08
Record high minimum temperature
Record high minimum temperature 16.1 C (61.0 F)
1952-07-09
Record high minimum temperature
Record high minimum temperature 16.7 C (62.1 F)
1953-11-22
Record daily precipitation
Record daily precipitation 65.8 mm (2.6 in)
1967-06-20
Record daily precipitation
Record daily precipitation 71.1 mm (2.8 in)
Wettest Day of Each Month
Jun: 71.1 mm (2.8 in)
The wettest day on record for each calendar month at Chiloquin 1 E. The most was 71.1 mm (2.8 in) on 20 June 1967.
Record daily precipitation for each month at Chiloquin 1 E
Month
Record daily precipitation (mm)
Date
Jan
55.9 mm (2.2 in)
22 January 1972
Feb
43.2 mm (1.7 in)
21 February 1956
Mar
55.6 mm (2.2 in)
2 March 1972
Apr
28.4 mm (1.1 in)
13 April 1937
May
29.0 mm (1.1 in)
20 May 1925
Jun
71.1 mm (2.8 in)
20 June 1967
Jul
25.1 mm (1.0 in)
24 July 1913
Aug
27.4 mm (1.1 in)
29 August 1953
Sep
32.3 mm (1.3 in)
27 September 1957
Oct
34.0 mm (1.3 in)
30 October 1956
Nov
65.8 mm (2.6 in)
22 November 1953
Dec
65.5 mm (2.6 in)
22 December 1964
Period of Record Coverage
1913 to 1979
Complete yearUnder 90 percent of days
67 years of record at Chiloquin 1 E, 1913 to 1979. 21 years have data for under 90 percent of days and are left out of rankings: 1913, 1934, 1940, 1941, 1948, 1949, 1950, 1951 and others.
Cooler than the station meanWarmer than the station mean
One stripe for each of 47 complete years at Chiloquin 1 E, 1914 to 1970. Blue stripes are years cooler than the station's own mean of 6.4 C (43.5 F); red stripes are warmer. The coolest year was 1922, at 4.9 C (40.7 F), and the warmest was 1945, at 7.9 C (46.2 F). The strongest colour marks a difference of 1.6 C (2.9 F).
Annual mean temperature at Chiloquin 1 E as warming stripes, 1914 to 1970
Year
Annual mean temperature
Difference from the station mean
1914
5.9 C
-0.44 C
1915
6.1 C
-0.25 C
1916
5.1 C
-1.29 C
1917
5.5 C
-0.89 C
1918
6.3 C
-0.04 C
1919
5.6 C
-0.75 C
1920
5.7 C
-0.69 C
1921
6.0 C
-0.40 C
1922
4.9 C
-1.51 C
1923
5.7 C
-0.63 C
1924
5.9 C
-0.47 C
1925
6.7 C
+0.35 C
1926
7.2 C
+0.82 C
1927
5.6 C
-0.74 C
1928
6.2 C
-0.12 C
1929
5.9 C
-0.45 C
1930
6.2 C
-0.21 C
1931
6.9 C
+0.54 C
1932
5.8 C
-0.52 C
1933
5.9 C
-0.46 C
1935
5.9 C
-0.50 C
1936
7.1 C
+0.70 C
1937
5.7 C
-0.64 C
1938
6.6 C
+0.19 C
1939
6.8 C
+0.45 C
1942
7.4 C
+1.08 C
1943
7.9 C
+1.52 C
1944
7.3 C
+0.97 C
1945
7.9 C
+1.52 C
1946
6.9 C
+0.58 C
1947
7.7 C
+1.30 C
1952
7.4 C
+1.08 C
1953
7.1 C
+0.69 C
1954
6.8 C
+0.41 C
1955
5.8 C
-0.52 C
1957
5.8 C
-0.55 C
1958
7.5 C
+1.14 C
1959
6.2 C
-0.14 C
1960
6.5 C
+0.15 C
1961
6.7 C
+0.29 C
1962
6.2 C
-0.21 C
1963
6.3 C
-0.11 C
1964
5.2 C
-1.21 C
1965
6.4 C
-0.01 C
1966
6.6 C
+0.19 C
1967
6.3 C
-0.10 C
1970
6.5 C
+0.09 C
The annual mean temperature here has risen by 0.14 C (0.02 to 0.27) per decade over 1914 to 1970. In Fahrenheit: 0.26 F (0.04 to 0.48) per decade. The slope is a straight line fitted to 47 complete years; the brackets give its 95 percent interval.
Fitted temperature trends per decade at Chiloquin 1 E
Measure
Per decade (C)
Per decade (F)
Period
Complete years
Reading
Annual mean temperature
0.14 C (0.02 to 0.27) per decade
0.26 F (0.04 to 0.48) per decade
1914 to 1970
47
Rise
Mean daily maximum
0.3 C (0.1 to 0.4) per decade
0.5 F (0.2 to 0.7) per decade
1914 to 1970
47
Rise
Mean daily minimum
0.04 C (-0.11 to 0.19) per decade
0.1 F (-0.2 to 0.3) per decade
1914 to 1970
47
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 1979
Yearly extremes at Chiloquin 1 E: the record and the median year
Measure
Record
Year of the record
Median year
Years with a value
Hottest day (TXx)
39.4 C (102.9 F)
1946
35.0 C (95.0 F)
67
Coldest night (TNn)
-33.3 C (-27.9 F)
1937
-22.2 C (-8.0 F)
67
Wettest day (Rx1day)
71.1 mm (2.8 in)
1967
28.4 mm (1.1 in)
67
Wettest five days (Rx5day)
165.4 mm (6.5 in)
1964
57.9 mm (2.3 in)
67
Longest dry spell (CDD)
118 days
1970
55 days
67
Hottest day (TXx)
The hottest day of the year at Chiloquin 1 E, 1913 to 1979. The record is 39.4 C (102.9 F) in 1946, marked on the chart; the median year is 35.0 C (95.0 F).
Hottest day (TXx) at Chiloquin 1 E by year
Year
Hottest day (TXx)
1913
34.4 C (93.9 F)
1914
33.9 C (93.0 F)
1915
35.0 C (95.0 F)
1916
33.9 C (93.0 F)
1917
34.4 C (93.9 F)
1918
33.9 C (93.0 F)
1919
35.0 C (95.0 F)
1920
37.2 C (99.0 F)
1921
33.9 C (93.0 F)
1922
35.0 C (95.0 F)
1923
33.9 C (93.0 F)
1924
36.1 C (97.0 F)
1925
35.0 C (95.0 F)
1926
34.4 C (93.9 F)
1927
31.1 C (88.0 F)
1928
36.1 C (97.0 F)
1929
35.0 C (95.0 F)
1930
33.3 C (91.9 F)
1931
36.7 C (98.1 F)
1932
35.0 C (95.0 F)
1933
37.2 C (99.0 F)
1934
35.6 C (96.1 F)
1935
38.9 C (102.0 F)
1936
36.1 C (97.0 F)
1937
36.7 C (98.1 F)
1938
36.1 C (97.0 F)
1939
37.2 C (99.0 F)
1940
35.6 C (96.1 F)
1941
22.2 C (72.0 F)
1942
37.8 C (100.0 F)
1943
34.4 C (93.9 F)
1944
36.1 C (97.0 F)
1945
36.7 C (98.1 F)
1946
39.4 C (102.9 F)
1947
32.2 C (90.0 F)
1948
33.9 C (93.0 F)
1949
35.0 C (95.0 F)
1950
35.6 C (96.1 F)
1951
35.0 C (95.0 F)
1952
35.6 C (96.1 F)
1953
33.9 C (93.0 F)
1954
35.0 C (95.0 F)
1955
37.8 C (100.0 F)
1956
35.0 C (95.0 F)
1957
32.8 C (91.0 F)
1958
35.0 C (95.0 F)
1959
36.7 C (98.1 F)
1960
37.2 C (99.0 F)
1961
38.9 C (102.0 F)
1962
33.3 C (91.9 F)
1963
33.3 C (91.9 F)
1964
35.0 C (95.0 F)
1965
35.6 C (96.1 F)
1966
34.4 C (93.9 F)
1967
36.1 C (97.0 F)
1968
36.1 C (97.0 F)
1969
33.9 C (93.0 F)
1970
34.4 C (93.9 F)
1971
37.2 C (99.0 F)
1972
37.8 C (100.0 F)
1973
27.2 C (81.0 F)
1974
33.3 C (91.9 F)
1975
35.0 C (95.0 F)
1976
32.2 C (90.0 F)
1977
32.2 C (90.0 F)
1978
36.1 C (97.0 F)
1979
37.2 C (99.0 F)
Coldest night (TNn)
The coldest night of the year at Chiloquin 1 E, 1913 to 1979. The record is -33.3 C (-27.9 F) in 1937, marked on the chart; the median year is -22.2 C (-8.0 F).
Coldest night (TNn) at Chiloquin 1 E by year
Year
Coldest night (TNn)
1913
-14.4 C (6.1 F)
1914
-22.8 C (-9.0 F)
1915
-23.3 C (-9.9 F)
1916
-21.7 C (-7.1 F)
1917
-27.2 C (-17.0 F)
1918
-24.4 C (-11.9 F)
1919
-30.0 C (-22.0 F)
1920
-18.9 C (-2.0 F)
1921
-20.6 C (-5.1 F)
1922
-31.1 C (-24.0 F)
1923
-25.6 C (-14.1 F)
1924
-28.9 C (-20.0 F)
1925
-17.2 C (1.0 F)
1926
-23.3 C (-9.9 F)
1927
-25.6 C (-14.1 F)
1928
-20.0 C (-4.0 F)
1929
-22.2 C (-8.0 F)
1930
-26.7 C (-16.1 F)
1931
-22.2 C (-8.0 F)
1932
-28.3 C (-18.9 F)
1933
-27.2 C (-17.0 F)
1934
-14.4 C (6.1 F)
1935
-26.1 C (-15.0 F)
1936
-18.9 C (-2.0 F)
1937
-33.3 C (-27.9 F)
1938
-22.2 C (-8.0 F)
1939
-20.0 C (-4.0 F)
1940
-15.0 C (5.0 F)
1941
-16.1 C (3.0 F)
1942
-23.3 C (-9.9 F)
1943
-22.2 C (-8.0 F)
1944
-18.3 C (-0.9 F)
1945
-18.9 C (-2.0 F)
1946
-19.4 C (-2.9 F)
1947
-21.7 C (-7.1 F)
1948
-21.7 C (-7.1 F)
1949
-25.6 C (-14.1 F)
1950
-29.4 C (-20.9 F)
1951
-22.2 C (-8.0 F)
1952
-22.8 C (-9.0 F)
1953
-16.1 C (3.0 F)
1954
-22.2 C (-8.0 F)
1955
-25.6 C (-14.1 F)
1956
-24.4 C (-11.9 F)
1957
-31.1 C (-24.0 F)
1958
-17.2 C (1.0 F)
1959
-19.4 C (-2.9 F)
1960
-22.2 C (-8.0 F)
1961
-19.4 C (-2.9 F)
1962
-31.1 C (-24.0 F)
1963
-23.3 C (-9.9 F)
1964
-18.9 C (-2.0 F)
1965
-21.1 C (-6.0 F)
1966
-19.4 C (-2.9 F)
1967
-22.8 C (-9.0 F)
1968
-19.4 C (-2.9 F)
1969
-17.8 C (0.0 F)
1970
-21.1 C (-6.0 F)
1971
-22.8 C (-9.0 F)
1972
-22.2 C (-8.0 F)
1973
-19.4 C (-2.9 F)
1974
-23.3 C (-9.9 F)
1975
-22.2 C (-8.0 F)
1976
-18.9 C (-2.0 F)
1977
-24.4 C (-11.9 F)
1978
-24.4 C (-11.9 F)
1979
-21.7 C (-7.1 F)
Wettest day (Rx1day)
The wettest day of the year at Chiloquin 1 E, 1913 to 1979. The record is 71.1 mm (2.8 in) in 1967, marked on the chart; the median year is 28.4 mm (1.1 in).
Wettest day (Rx1day) at Chiloquin 1 E by year
Year
Wettest day (Rx1day)
1913
29.0 mm (1.1 in)
1914
26.2 mm (1.0 in)
1915
34.8 mm (1.4 in)
1916
26.7 mm (1.1 in)
1917
33.0 mm (1.3 in)
1918
23.1 mm (0.9 in)
1919
34.3 mm (1.4 in)
1920
39.4 mm (1.6 in)
1921
27.9 mm (1.1 in)
1922
21.6 mm (0.9 in)
1923
24.1 mm (0.9 in)
1924
31.8 mm (1.3 in)
1925
29.0 mm (1.1 in)
1926
33.0 mm (1.3 in)
1927
20.3 mm (0.8 in)
1928
35.1 mm (1.4 in)
1929
28.4 mm (1.1 in)
1930
25.9 mm (1.0 in)
1931
21.6 mm (0.9 in)
1932
21.1 mm (0.8 in)
1933
19.6 mm (0.8 in)
1934
18.0 mm (0.7 in)
1935
17.8 mm (0.7 in)
1936
46.7 mm (1.8 in)
1937
39.9 mm (1.6 in)
1938
33.0 mm (1.3 in)
1939
49.3 mm (1.9 in)
1940
24.9 mm (1.0 in)
1941
36.3 mm (1.4 in)
1942
30.7 mm (1.2 in)
1943
39.4 mm (1.6 in)
1944
16.5 mm (0.6 in)
1945
33.0 mm (1.3 in)
1946
23.4 mm (0.9 in)
1947
19.8 mm (0.8 in)
1948
15.7 mm (0.6 in)
1949
15.5 mm (0.6 in)
1950
44.7 mm (1.8 in)
1951
47.2 mm (1.9 in)
1952
24.1 mm (0.9 in)
1953
65.8 mm (2.6 in)
1954
21.3 mm (0.8 in)
1955
25.4 mm (1.0 in)
1956
43.2 mm (1.7 in)
1957
32.3 mm (1.3 in)
1958
29.5 mm (1.2 in)
1959
18.5 mm (0.7 in)
1960
31.0 mm (1.2 in)
1961
48.0 mm (1.9 in)
1962
33.5 mm (1.3 in)
1963
22.9 mm (0.9 in)
1964
65.5 mm (2.6 in)
1965
23.4 mm (0.9 in)
1966
23.4 mm (0.9 in)
1967
71.1 mm (2.8 in)
1968
22.4 mm (0.9 in)
1969
34.3 mm (1.4 in)
1970
31.8 mm (1.3 in)
1971
22.4 mm (0.9 in)
1972
55.9 mm (2.2 in)
1973
28.4 mm (1.1 in)
1974
26.4 mm (1.0 in)
1975
31.0 mm (1.2 in)
1976
17.5 mm (0.7 in)
1977
24.4 mm (1.0 in)
1978
16.5 mm (0.6 in)
1979
54.6 mm (2.1 in)
Wettest five days (Rx5day)
The wettest five days of the year at Chiloquin 1 E, 1913 to 1979. The record is 165.4 mm (6.5 in) in 1964, marked on the chart; the median year is 57.9 mm (2.3 in).
Wettest five days (Rx5day) at Chiloquin 1 E by year
Year
Wettest five days (Rx5day)
1913
52.3 mm (2.1 in)
1914
73.9 mm (2.9 in)
1915
53.6 mm (2.1 in)
1916
43.7 mm (1.7 in)
1917
66.5 mm (2.6 in)
1918
40.4 mm (1.6 in)
1919
38.4 mm (1.5 in)
1920
68.9 mm (2.7 in)
1921
50.3 mm (2.0 in)
1922
41.9 mm (1.6 in)
1923
41.6 mm (1.6 in)
1924
57.9 mm (2.3 in)
1925
46.8 mm (1.8 in)
1926
83.3 mm (3.3 in)
1927
35.0 mm (1.4 in)
1928
48.8 mm (1.9 in)
1929
77.9 mm (3.1 in)
1930
51.1 mm (2.0 in)
1931
39.6 mm (1.6 in)
1932
33.0 mm (1.3 in)
1933
45.2 mm (1.8 in)
1934
38.5 mm (1.5 in)
1935
36.4 mm (1.4 in)
1936
66.5 mm (2.6 in)
1937
73.5 mm (2.9 in)
1938
61.5 mm (2.4 in)
1939
87.7 mm (3.5 in)
1940
63.3 mm (2.5 in)
1941
66.5 mm (2.6 in)
1942
56.1 mm (2.2 in)
1943
84.9 mm (3.3 in)
1944
44.6 mm (1.8 in)
1945
73.4 mm (2.9 in)
1946
43.5 mm (1.7 in)
1947
32.2 mm (1.3 in)
1948
39.8 mm (1.6 in)
1949
22.8 mm (0.9 in)
1950
73.6 mm (2.9 in)
1951
67.6 mm (2.7 in)
1952
34.0 mm (1.3 in)
1953
111.2 mm (4.4 in)
1954
40.1 mm (1.6 in)
1955
65.7 mm (2.6 in)
1956
54.9 mm (2.2 in)
1957
65.6 mm (2.6 in)
1958
74.3 mm (2.9 in)
1959
28.0 mm (1.1 in)
1960
74.4 mm (2.9 in)
1961
92.5 mm (3.6 in)
1962
103.2 mm (4.1 in)
1963
61.0 mm (2.4 in)
1964
165.4 mm (6.5 in)
1965
43.7 mm (1.7 in)
1966
49.8 mm (2.0 in)
1967
75.4 mm (3.0 in)
1968
58.5 mm (2.3 in)
1969
86.9 mm (3.4 in)
1970
69.1 mm (2.7 in)
1971
60.2 mm (2.4 in)
1972
103.6 mm (4.1 in)
1973
72.1 mm (2.8 in)
1974
57.9 mm (2.3 in)
1975
52.4 mm (2.1 in)
1976
30.2 mm (1.2 in)
1977
41.9 mm (1.6 in)
1978
28.7 mm (1.1 in)
1979
88.9 mm (3.5 in)
Longest dry spell (CDD)
The longest dry spell of the year at Chiloquin 1 E, 1913 to 1979. The record is 118 days in 1970, marked on the chart; the median year is 55 days.
Longest dry spell (CDD) at Chiloquin 1 E by year
Year
Longest dry spell (CDD)
1913
30 days
1914
46 days
1915
39 days
1916
61 days
1917
89 days
1918
40 days
1919
68 days
1920
59 days
1921
79 days
1922
39 days
1923
48 days
1924
65 days
1925
27 days
1926
59 days
1927
27 days
1928
70 days
1929
102 days
1930
88 days
1931
70 days
1932
94 days
1933
47 days
1934
51 days
1935
33 days
1936
92 days
1937
81 days
1938
83 days
1939
47 days
1940
65 days
1941
27 days
1942
52 days
1943
32 days
1944
50 days
1945
71 days
1946
38 days
1947
48 days
1948
28 days
1949
60 days
1950
47 days
1951
56 days
1952
72 days
1953
78 days
1954
34 days
1955
57 days
1956
32 days
1957
66 days
1958
24 days
1959
54 days
1960
61 days
1961
61 days
1962
72 days
1963
31 days
1964
40 days
1965
39 days
1966
48 days
1967
88 days
1968
55 days
1969
73 days
1970
118 days
1971
51 days
1972
86 days
1973
12 days
1974
82 days
1975
38 days
1976
36 days
1977
28 days
1978
74 days
1979
56 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
47 years with a frost
Across 47 years with a frost, the median last spring frost at Chiloquin 1 E falls on 27 June and the median first autumn frost on 6 July, which leaves a median of 15 days between them.
Fitted over all years, the growing season changes by -0.6 days per decade at this station.
Frost dates and growing season at Chiloquin 1 E
Measure
Median, all years
Earliest period
Recent period (1931 to 1970)
Recent against earliest
Fitted trend
Last spring frost
27 June
n/a
28 June
n/a
+0.3 days per decade
First autumn frost
6 July
n/a
5 July
n/a
-0.4 days per decade
Growing days
15 days
n/a
12 days
n/a
-0.6 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
55 years, 1914 to 1979
A day with at least 29.0 mm (1.1 in) of rain is expected about once in 2 years. A day with at least 82.2 mm (3.2 in) of rain is expected about once in 100 years.
Rainfall return levels at Chiloquin 1 E: the daily rain expected about once in a given number of years
Expected about once in
A day with at least
Note
2 years
29.0 mm (1.1 in)
5 years
39.8 mm (1.6 in)
10 years
48.2 mm (1.9 in)
25 years
60.4 mm (2.4 in)
50 years
70.7 mm (2.8 in)
100 years
82.2 mm (3.2 in)
Longer than the 55 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, 55 years of values from 1914 to 1979.
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: 71.1 mm (2.8 in) in 1967; 65.8 mm (2.6 in) in 1953; 65.5 mm (2.6 in) in 1964.
Station Changes
2 suspected
2 changes were suspected in the annual mean temperature of Chiloquin 1 E, at 1938 and 1957. Each is measured against neighbouring stations.
Relative to 5 neighbouring stations, the station's annual mean temperature from 1938 ran 0.9 C (1.6 F) higher than in the years before (likely change).
Relative to 5 neighbouring stations, the station's annual mean temperature from 1957 ran 0.8 C (1.4 F) lower than in the years before (likely change).
Suspected changes in the annual mean temperature at Chiloquin 1 E, against neighbouring stations
Year
Shift (C)
Shift (F)
Strength
Neighbours
1938
+0.9
+1.6
likely
5
1957
-0.8
-1.4
likely
5
Possible change at the station (a move, a new instrument or a new site); the record is kept as measured. A "likely" change has a larger test statistic than a "possible" one. Neither says why the station differs from its neighbours. How changes are found, and the largest ones.
Download the Data
Data for Chiloquin 1 E standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Chiloquin 1 E 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.