Record envelope, standing records and threshold days for Oroville 3 NW (USC00456188), Washington, United States, with 52 years of record.
Key Facts for Oroville 3 NW
Oroville 3 NW (USC00456188) is a weather station in Washington, United States at 48.97 latitude and -119.50 longitude, 323 m (1,060 ft) above sea level.
The station reports from 1909 to 1960, 52 years of record.
1,464 records set at Oroville 3 NW still stand.
Records are tracked for tmax, tmin, prcp: an element needs 30 years of data to be eligible.
Oroville 3 NW set a daily record low maximum temperature of 11.1 C (52.0 F) on 23 April 1960.
About the Station
Location: Washington, United States, 48.97 latitude, -119.50 longitude.
Elevation: 323 m (1,060 ft).
Period of record: 1909 to 1960, 52 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 Oroville 3 NW. 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 Oroville 3 NW, with 2026 drawn through them
Month
Highest record high
Lowest record low
2026 highest maximum
2026 lowest minimum
Jan
15.0 C (59.0 F)
-26.1 C (-15.0 F)
n/a
n/a
Feb
16.7 C (62.1 F)
-28.3 C (-18.9 F)
n/a
n/a
Mar
25.6 C (78.1 F)
-18.3 C (-0.9 F)
n/a
n/a
Apr
33.3 C (91.9 F)
-8.9 C (16.0 F)
n/a
n/a
May
37.8 C (100.0 F)
-3.3 C (26.1 F)
n/a
n/a
Jun
41.7 C (107.1 F)
0.6 C (33.1 F)
n/a
n/a
Jul
43.9 C (111.0 F)
4.4 C (39.9 F)
n/a
n/a
Aug
40.0 C (104.0 F)
3.3 C (37.9 F)
n/a
n/a
Sep
36.7 C (98.1 F)
-6.7 C (19.9 F)
n/a
n/a
Oct
28.9 C (84.0 F)
-11.1 C (12.0 F)
n/a
n/a
Nov
17.2 C (63.0 F)
-17.8 C (0.0 F)
n/a
n/a
Dec
16.7 C (62.1 F)
-23.9 C (-11.0 F)
n/a
n/a
Which Years Hold Standing Records
1,464 standing records
Year with most
1,464 records at Oroville 3 NW still stand. 1926 holds the most, with 62.
Standing records at Oroville 3 NW by the year they were set
Year set
Standing records
1909
31
1910
24
1911
17
1912
37
1913
33
1914
15
1915
3
1916
19
1917
37
1918
30
1919
39
1920
25
1921
20
1922
28
1923
32
1924
53
1925
44
1926
62
1927
10
1928
17
1929
31
1930
28
1931
36
1932
33
1933
35
1934
38
1935
44
1936
51
1937
27
1938
11
1939
28
1940
14
1941
25
1942
16
1943
27
1944
20
1945
23
1946
22
1947
24
1948
13
1949
35
1950
47
1951
26
1952
20
1953
28
1954
35
1955
48
1956
12
1957
18
1958
47
1959
13
1960
13
All-Time Record Progression
2 new records
2 all-time records were set at Oroville 3 NW between 3 January 1950 and 15 January 1950. Each dot is a new record.
When Oroville 3 NW set new all-time records
Date
Kind
Detail
1950-01-03
Record low maximum temperature
Record low maximum temperature -17.8 C (0.0 F)
1950-01-15
Record low maximum temperature
Record low maximum temperature -18.3 C (-0.9 F)
Wettest Day of Each Month
Jun: 47.2 mm (1.9 in)
The wettest day on record for each calendar month at Oroville 3 NW. The most was 47.2 mm (1.9 in) on 2 June 1936.
Record daily precipitation for each month at Oroville 3 NW
Month
Record daily precipitation (mm)
Date
Jan
40.6 mm (1.6 in)
8 January 1959
Feb
25.4 mm (1.0 in)
19 February 1919
Mar
25.4 mm (1.0 in)
23 March 1910
Apr
35.1 mm (1.4 in)
6 April 1950
May
35.6 mm (1.4 in)
10 May 1910
Jun
47.2 mm (1.9 in)
2 June 1936
Jul
45.7 mm (1.8 in)
10 July 1918
Aug
39.9 mm (1.6 in)
20 August 1923
Sep
36.3 mm (1.4 in)
10 September 1941
Oct
28.2 mm (1.1 in)
2 October 1957
Nov
41.9 mm (1.6 in)
16 November 1950
Dec
38.1 mm (1.5 in)
6 December 1917
Period of Record Coverage
1909 to 1960
Complete yearUnder 90 percent of days
52 years of record at Oroville 3 NW, 1909 to 1960. 12 years have data for under 90 percent of days and are left out of rankings: 1909, 1910, 1911, 1912, 1914, 1915, 1916, 1927 and others.
Cooler than the station meanWarmer than the station mean
One stripe for each of 39 complete years at Oroville 3 NW, 1917 to 1959. 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 1929, at 8.3 C (46.9 F), and the warmest was 1958, at 11.9 C (53.5 F). The strongest colour marks a difference of 2.0 C (3.6 F).
Annual mean temperature at Oroville 3 NW as warming stripes, 1917 to 1959
Year
Annual mean temperature
Difference from the station mean
1917
9.6 C
-0.40 C
1918
10.6 C
+0.59 C
1919
9.6 C
-0.33 C
1920
10.0 C
+0.03 C
1921
9.5 C
-0.43 C
1922
9.5 C
-0.50 C
1923
10.9 C
+0.89 C
1924
10.3 C
+0.31 C
1925
11.8 C
+1.83 C
1926
11.6 C
+1.65 C
1929
8.3 C
-1.69 C
1930
9.3 C
-0.70 C
1931
10.0 C
+0.00 C
1932
8.9 C
-1.05 C
1933
8.8 C
-1.16 C
1934
10.9 C
+0.88 C
1935
8.9 C
-1.08 C
1936
9.3 C
-0.66 C
1937
8.7 C
-1.30 C
1938
10.2 C
+0.27 C
1939
10.5 C
+0.48 C
1940
11.2 C
+1.18 C
1941
10.9 C
+0.89 C
1942
10.0 C
+0.03 C
1943
9.5 C
-0.51 C
1945
10.6 C
+0.64 C
1946
10.2 C
+0.19 C
1947
10.7 C
+0.76 C
1949
9.5 C
-0.50 C
1950
9.1 C
-0.85 C
1951
9.4 C
-0.54 C
1952
10.3 C
+0.30 C
1953
11.0 C
+1.00 C
1954
9.6 C
-0.39 C
1955
8.7 C
-1.28 C
1956
9.9 C
-0.10 C
1957
9.8 C
-0.20 C
1958
11.9 C
+1.96 C
1959
9.7 C
-0.32 C
The fitted trend in annual mean temperature here over 1917 to 1959 is 0.01 C (-0.22 to 0.23) per decade. The interval includes zero, so the trend is not clearly different from zero. In Fahrenheit: 0.01 F (-0.40 to 0.42) per decade. The slope is a straight line fitted to 39 complete years; the brackets give its 95 percent interval.
Fitted temperature trends per decade at Oroville 3 NW
Measure
Per decade (C)
Per decade (F)
Period
Complete years
Reading
Annual mean temperature
0.01 C (-0.22 to 0.23) per decade
0.01 F (-0.40 to 0.42) per decade
1917 to 1959
39
Not clearly different from zero
Mean daily maximum
-0.24 C (-0.46 to -0.01) per decade
-0.43 F (-0.83 to -0.03) per decade
1917 to 1959
39
Fall
Mean daily minimum
0.25 C (-0.01 to 0.51) per decade
0.44 F (-0.02 to 0.91) per decade
1917 to 1959
39
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
1909 to 1960
Yearly extremes at Oroville 3 NW: the record and the median year
Measure
Record
Year of the record
Median year
Years with a value
Hottest day (TXx)
43.9 C (111.0 F)
1924
38.9 C (102.0 F)
52
Coldest night (TNn)
-28.3 C (-18.9 F)
1933
-19.4 C (-2.9 F)
52
Wettest day (Rx1day)
47.2 mm (1.9 in)
1936
22.1 mm (0.9 in)
52
Wettest five days (Rx5day)
83.0 mm (3.3 in)
1959
35.4 mm (1.4 in)
51
Longest dry spell (CDD)
98 days
1924
35 days
52
Hottest day (TXx)
The hottest day of the year at Oroville 3 NW, 1909 to 1960. The record is 43.9 C (111.0 F) in 1924, marked on the chart; the median year is 38.9 C (102.0 F).
Hottest day (TXx) at Oroville 3 NW by year
Year
Hottest day (TXx)
1909
38.9 C (102.0 F)
1910
32.8 C (91.0 F)
1911
41.7 C (107.1 F)
1912
40.0 C (104.0 F)
1913
39.4 C (102.9 F)
1914
31.7 C (89.1 F)
1915
14.4 C (57.9 F)
1916
36.7 C (98.1 F)
1917
40.6 C (105.1 F)
1918
40.0 C (104.0 F)
1919
40.6 C (105.1 F)
1920
40.0 C (104.0 F)
1921
38.3 C (100.9 F)
1922
40.6 C (105.1 F)
1923
40.6 C (105.1 F)
1924
43.9 C (111.0 F)
1925
41.7 C (107.1 F)
1926
41.7 C (107.1 F)
1927
41.7 C (107.1 F)
1928
39.4 C (102.9 F)
1929
36.7 C (98.1 F)
1930
38.9 C (102.0 F)
1931
37.8 C (100.0 F)
1932
39.4 C (102.9 F)
1933
38.3 C (100.9 F)
1934
42.2 C (108.0 F)
1935
38.3 C (100.9 F)
1936
37.2 C (99.0 F)
1937
36.7 C (98.1 F)
1938
38.3 C (100.9 F)
1939
40.0 C (104.0 F)
1940
38.9 C (102.0 F)
1941
42.2 C (108.0 F)
1942
40.6 C (105.1 F)
1943
37.8 C (100.0 F)
1944
36.1 C (97.0 F)
1945
40.0 C (104.0 F)
1946
38.3 C (100.9 F)
1947
38.3 C (100.9 F)
1948
34.4 C (93.9 F)
1949
38.9 C (102.0 F)
1950
37.8 C (100.0 F)
1951
37.8 C (100.0 F)
1952
38.9 C (102.0 F)
1953
37.8 C (100.0 F)
1954
35.6 C (96.1 F)
1955
39.4 C (102.9 F)
1956
40.0 C (104.0 F)
1957
35.0 C (95.0 F)
1958
40.6 C (105.1 F)
1959
39.4 C (102.9 F)
1960
25.0 C (77.0 F)
Coldest night (TNn)
The coldest night of the year at Oroville 3 NW, 1909 to 1960. The record is -28.3 C (-18.9 F) in 1933, marked on the chart; the median year is -19.4 C (-2.9 F).
Coldest night (TNn) at Oroville 3 NW by year
Year
Coldest night (TNn)
1909
-16.7 C (1.9 F)
1910
-20.6 C (-5.1 F)
1911
-6.1 C (21.0 F)
1912
-7.8 C (18.0 F)
1913
-19.4 C (-2.9 F)
1914
-17.2 C (1.0 F)
1915
-6.7 C (19.9 F)
1916
-23.9 C (-11.0 F)
1917
-21.7 C (-7.1 F)
1918
-15.0 C (5.0 F)
1919
-20.0 C (-4.0 F)
1920
-16.7 C (1.9 F)
1921
-17.2 C (1.0 F)
1922
-23.9 C (-11.0 F)
1923
-21.7 C (-7.1 F)
1924
-20.6 C (-5.1 F)
1925
-17.8 C (0.0 F)
1926
-16.7 C (1.9 F)
1927
-1.1 C (30.0 F)
1928
-12.8 C (9.0 F)
1929
-22.8 C (-9.0 F)
1930
-21.1 C (-6.0 F)
1931
-19.4 C (-2.9 F)
1932
-21.7 C (-7.1 F)
1933
-28.3 C (-18.9 F)
1934
-14.4 C (6.1 F)
1935
-24.4 C (-11.9 F)
1936
-26.7 C (-16.1 F)
1937
-24.4 C (-11.9 F)
1938
-16.1 C (3.0 F)
1939
-20.0 C (-4.0 F)
1940
-12.8 C (9.0 F)
1941
-11.7 C (10.9 F)
1942
-16.7 C (1.9 F)
1943
-23.9 C (-11.0 F)
1944
-16.7 C (1.9 F)
1945
-11.7 C (10.9 F)
1946
-15.0 C (5.0 F)
1947
-19.4 C (-2.9 F)
1948
-20.6 C (-5.1 F)
1949
-23.3 C (-9.9 F)
1950
-26.1 C (-15.0 F)
1951
-21.1 C (-6.0 F)
1952
-21.1 C (-6.0 F)
1953
-8.3 C (17.1 F)
1954
-21.7 C (-7.1 F)
1955
-18.3 C (-0.9 F)
1956
-20.6 C (-5.1 F)
1957
-21.1 C (-6.0 F)
1958
-11.7 C (10.9 F)
1959
-20.6 C (-5.1 F)
1960
-15.6 C (3.9 F)
Wettest day (Rx1day)
The wettest day of the year at Oroville 3 NW, 1909 to 1960. The record is 47.2 mm (1.9 in) in 1936, marked on the chart; the median year is 22.1 mm (0.9 in).
Wettest day (Rx1day) at Oroville 3 NW by year
Year
Wettest day (Rx1day)
1909
35.6 mm (1.4 in)
1910
35.6 mm (1.4 in)
1911
27.9 mm (1.1 in)
1912
20.3 mm (0.8 in)
1913
35.6 mm (1.4 in)
1914
15.2 mm (0.6 in)
1915
9.9 mm (0.39 in)
1916
12.7 mm (0.5 in)
1917
38.1 mm (1.5 in)
1918
45.7 mm (1.8 in)
1919
30.0 mm (1.2 in)
1920
17.8 mm (0.7 in)
1921
19.8 mm (0.8 in)
1922
27.9 mm (1.1 in)
1923
39.9 mm (1.6 in)
1924
15.2 mm (0.6 in)
1925
14.7 mm (0.6 in)
1926
18.8 mm (0.7 in)
1927
17.8 mm (0.7 in)
1928
17.5 mm (0.7 in)
1929
24.9 mm (1.0 in)
1930
25.7 mm (1.0 in)
1931
17.0 mm (0.7 in)
1932
17.8 mm (0.7 in)
1933
14.5 mm (0.6 in)
1934
15.0 mm (0.6 in)
1935
16.8 mm (0.7 in)
1936
47.2 mm (1.9 in)
1937
21.6 mm (0.9 in)
1938
20.8 mm (0.8 in)
1939
9.9 mm (0.39 in)
1940
23.1 mm (0.9 in)
1941
37.1 mm (1.5 in)
1942
28.2 mm (1.1 in)
1943
21.1 mm (0.8 in)
1944
25.4 mm (1.0 in)
1945
16.5 mm (0.6 in)
1946
16.3 mm (0.6 in)
1947
32.3 mm (1.3 in)
1948
22.6 mm (0.9 in)
1949
14.5 mm (0.6 in)
1950
41.9 mm (1.6 in)
1951
38.6 mm (1.5 in)
1952
18.0 mm (0.7 in)
1953
36.3 mm (1.4 in)
1954
33.0 mm (1.3 in)
1955
23.4 mm (0.9 in)
1956
19.8 mm (0.8 in)
1957
28.2 mm (1.1 in)
1958
29.0 mm (1.1 in)
1959
40.6 mm (1.6 in)
1960
7.6 mm (0.30 in)
Wettest five days (Rx5day)
The wettest five days of the year at Oroville 3 NW, 1909 to 1960. The record is 83.0 mm (3.3 in) in 1959, marked on the chart; the median year is 35.4 mm (1.4 in).
Wettest five days (Rx5day) at Oroville 3 NW by year
Year
Wettest five days (Rx5day)
1909
64.8 mm (2.6 in)
1910
37.7 mm (1.5 in)
1911
33.2 mm (1.3 in)
1912
43.2 mm (1.7 in)
1913
48.3 mm (1.9 in)
1914
15.2 mm (0.6 in)
1915
13.7 mm (0.5 in)
1916
12.7 mm (0.5 in)
1917
38.1 mm (1.5 in)
1918
45.7 mm (1.8 in)
1919
35.5 mm (1.4 in)
1920
36.1 mm (1.4 in)
1921
39.3 mm (1.5 in)
1922
28.0 mm (1.1 in)
1923
39.9 mm (1.6 in)
1924
35.4 mm (1.4 in)
1925
24.1 mm (0.9 in)
1926
33.5 mm (1.3 in)
1927
n/a
1928
40.9 mm (1.6 in)
1929
37.5 mm (1.5 in)
1930
34.6 mm (1.4 in)
1931
27.7 mm (1.1 in)
1932
29.5 mm (1.2 in)
1933
32.5 mm (1.3 in)
1934
31.2 mm (1.2 in)
1935
27.0 mm (1.1 in)
1936
49.7 mm (2.0 in)
1937
31.0 mm (1.2 in)
1938
27.7 mm (1.1 in)
1939
29.2 mm (1.1 in)
1940
27.2 mm (1.1 in)
1941
50.2 mm (2.0 in)
1942
30.2 mm (1.2 in)
1943
31.3 mm (1.2 in)
1944
38.8 mm (1.5 in)
1945
35.6 mm (1.4 in)
1946
24.4 mm (1.0 in)
1947
38.9 mm (1.5 in)
1948
43.2 mm (1.7 in)
1949
23.1 mm (0.9 in)
1950
50.8 mm (2.0 in)
1951
45.0 mm (1.8 in)
1952
45.5 mm (1.8 in)
1953
36.3 mm (1.4 in)
1954
34.5 mm (1.4 in)
1955
29.3 mm (1.2 in)
1956
33.2 mm (1.3 in)
1957
48.4 mm (1.9 in)
1958
42.2 mm (1.7 in)
1959
83.0 mm (3.3 in)
1960
17.3 mm (0.7 in)
Longest dry spell (CDD)
The longest dry spell of the year at Oroville 3 NW, 1909 to 1960. The record is 98 days in 1924, marked on the chart; the median year is 35 days.
Longest dry spell (CDD) at Oroville 3 NW by year
Year
Longest dry spell (CDD)
1909
65 days
1910
18 days
1911
23 days
1912
41 days
1913
70 days
1914
19 days
1915
19 days
1916
50 days
1917
52 days
1918
37 days
1919
48 days
1920
27 days
1921
60 days
1922
78 days
1923
29 days
1924
98 days
1925
72 days
1926
42 days
1927
2 days
1928
29 days
1929
53 days
1930
30 days
1931
54 days
1932
35 days
1933
33 days
1934
38 days
1935
29 days
1936
57 days
1937
34 days
1938
23 days
1939
31 days
1940
39 days
1941
24 days
1942
60 days
1943
48 days
1944
25 days
1945
38 days
1946
52 days
1947
40 days
1948
34 days
1949
33 days
1950
31 days
1951
35 days
1952
64 days
1953
35 days
1954
32 days
1955
41 days
1956
30 days
1957
23 days
1958
35 days
1959
28 days
1960
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
39 years with a frost
Across 39 years with a frost, the median last spring frost at Oroville 3 NW falls on 30 April and the median first autumn frost on 13 October, which leaves a median of 170 days between them.
Fitted over all years, the growing season changes by +10.8 days per decade at this station.
Frost dates and growing season at Oroville 3 NW
Measure
Median, all years
Earliest period
Recent period (1926 to 1959)
Recent against earliest
Fitted trend
Last spring frost
30 April
n/a
26 April
n/a
-6.5 days per decade
First autumn frost
13 October
n/a
13 October
n/a
+4.3 days per decade
Growing days
170 days
n/a
173 days
n/a
+10.8 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
33 years, 1917 to 1959
A day with at least 24.1 mm (0.9 in) of rain is expected about once in 2 years. A day with at least 61.3 mm (2.4 in) of rain is expected about once in 100 years.
Rainfall return levels at Oroville 3 NW: the daily rain expected about once in a given number of years
Expected about once in
A day with at least
Note
2 years
24.1 mm (0.9 in)
5 years
33.3 mm (1.3 in)
10 years
39.7 mm (1.6 in)
25 years
48.2 mm (1.9 in)
50 years
54.7 mm (2.2 in)
Longer than the 33 years of record
100 years
61.3 mm (2.4 in)
Longer than the 33 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, 33 years of values from 1917 to 1959.
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: 47.2 mm (1.9 in) in 1936; 45.7 mm (1.8 in) in 1918; 41.9 mm (1.6 in) in 1950.
Download the Data
Data for Oroville 3 NW standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Oroville 3 NW 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.