Record envelope, standing records and threshold days for Bumping Lake (USC00450969), Washington, United States, with 58 years of record.
Key Facts for Bumping Lake
Bumping Lake (USC00450969) is a weather station in Washington, United States at 46.87 latitude and -121.30 longitude, 1,049 m (3,442 ft) above sea level.
The station reports from 1910 to 1967, 58 years of record.
1,464 records set at Bumping Lake still stand.
Records are tracked for tmax, tmin, prcp, snow, snwd: an element needs 30 years of data to be eligible.
Bumping Lake set a daily record high minimum temperature of 11.1 C (52.0 F) on 27 June 1967.
About the Station
Location: Washington, United States, 46.87 latitude, -121.30 longitude.
Elevation: 1,049 m (3,442 ft).
Period of record: 1910 to 1967, 58 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 Bumping Lake. 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 Bumping Lake, with 2026 drawn through them
Month
Highest record high
Lowest record low
2026 highest maximum
2026 lowest minimum
Jan
12.8 C (55.0 F)
-38.9 C (-38.0 F)
n/a
n/a
Feb
15.6 C (60.1 F)
-37.2 C (-35.0 F)
n/a
n/a
Mar
22.8 C (73.0 F)
-27.8 C (-18.0 F)
n/a
n/a
Apr
26.7 C (80.1 F)
-19.4 C (-2.9 F)
n/a
n/a
May
31.7 C (89.1 F)
-10.6 C (12.9 F)
n/a
n/a
Jun
34.4 C (93.9 F)
-5.6 C (21.9 F)
n/a
n/a
Jul
38.3 C (100.9 F)
-2.8 C (27.0 F)
n/a
n/a
Aug
36.7 C (98.1 F)
-5.0 C (23.0 F)
n/a
n/a
Sep
34.4 C (93.9 F)
-8.3 C (17.1 F)
n/a
n/a
Oct
29.4 C (84.9 F)
-20.6 C (-5.1 F)
n/a
n/a
Nov
18.9 C (66.0 F)
-24.4 C (-11.9 F)
n/a
n/a
Dec
16.1 C (61.0 F)
-33.3 C (-27.9 F)
n/a
n/a
Which Years Hold Standing Records
1,464 standing records
Year with most
1,464 records at Bumping Lake still stand. 1950 holds the most, with 82.
Standing records at Bumping Lake by the year they were set
Year set
Standing records
1910
27
1911
13
1912
27
1913
23
1914
26
1915
22
1916
37
1917
44
1918
41
1919
26
1920
28
1921
25
1922
28
1923
18
1924
33
1925
16
1926
24
1927
29
1928
28
1929
23
1930
27
1931
26
1932
29
1933
36
1934
43
1935
43
1936
37
1937
27
1938
29
1939
33
1940
13
1941
18
1942
19
1943
12
1944
23
1945
27
1946
10
1947
23
1948
29
1949
53
1950
82
1951
20
1952
27
1953
23
1954
15
1955
37
1956
21
1957
18
1958
18
1959
9
1960
17
1961
16
1962
16
1963
13
1964
13
1965
8
1966
14
1967
2
All-Time Record Progression
2 new records
2 all-time records were set at Bumping Lake between 29 January 1950 and 31 January 1950. Each dot is a new record.
When Bumping Lake set new all-time records
Date
Kind
Detail
1950-01-29
Record low minimum temperature
Record low minimum temperature -37.8 C (-36.0 F)
1950-01-31
Record low minimum temperature
Record low minimum temperature -38.9 C (-38.0 F)
Wettest Day of Each Month
Dec: 99.6 mm (3.9 in)
The wettest day on record for each calendar month at Bumping Lake. The most was 99.6 mm (3.9 in) on 5 December 1933.
Record daily precipitation for each month at Bumping Lake
Month
Record daily precipitation (mm)
Date
Jan
94.0 mm (3.7 in)
22 January 1919
Feb
97.8 mm (3.9 in)
3 February 1963
Mar
61.5 mm (2.4 in)
17 March 1921
Apr
76.2 mm (3.0 in)
1 April 1910
May
41.7 mm (1.6 in)
11 May 1951
Jun
37.1 mm (1.5 in)
8 June 1933
Jul
39.1 mm (1.5 in)
2 July 1916
Aug
42.7 mm (1.7 in)
22 August 1923
Sep
33.8 mm (1.3 in)
30 September 1951
Oct
87.6 mm (3.4 in)
24 October 1934
Nov
70.6 mm (2.8 in)
24 November 1927
Dec
99.6 mm (3.9 in)
5 December 1933
Period of Record Coverage
1910 to 1967
Complete yearUnder 90 percent of days
58 years of record at Bumping Lake, 1910 to 1967. 5 years have data for under 90 percent of days and are left out of rankings: 1910, 1911, 1926, 1950, 1967.
Cooler than the station meanWarmer than the station mean
One stripe for each of 49 complete years at Bumping Lake, 1912 to 1965. Blue stripes are years cooler than the station's own mean of 4.9 C (40.8 F); red stripes are warmer. The coolest year was 1955, at 3.3 C (38.0 F), and the warmest was 1934, at 6.7 C (44.0 F). The strongest colour marks a difference of 1.9 C (3.4 F).
Annual mean temperature at Bumping Lake as warming stripes, 1912 to 1965
Year
Annual mean temperature
Difference from the station mean
1912
4.9 C
+0.03 C
1913
4.5 C
-0.42 C
1914
5.7 C
+0.82 C
1916
3.4 C
-1.44 C
1917
5.5 C
+0.60 C
1918
6.3 C
+1.41 C
1919
5.1 C
+0.22 C
1920
5.5 C
+0.64 C
1921
5.1 C
+0.22 C
1922
4.5 C
-0.38 C
1923
5.4 C
+0.55 C
1924
4.7 C
-0.17 C
1925
5.6 C
+0.69 C
1928
4.5 C
-0.35 C
1929
4.1 C
-0.77 C
1930
4.4 C
-0.45 C
1931
4.9 C
+0.06 C
1932
4.2 C
-0.71 C
1933
4.1 C
-0.79 C
1934
6.7 C
+1.80 C
1935
4.0 C
-0.86 C
1936
4.4 C
-0.50 C
1937
4.1 C
-0.79 C
1938
5.3 C
+0.41 C
1939
6.0 C
+1.13 C
1940
6.1 C
+1.21 C
1941
6.1 C
+1.20 C
1942
4.9 C
+0.07 C
1943
4.3 C
-0.53 C
1944
4.3 C
-0.59 C
1945
4.3 C
-0.56 C
1946
4.0 C
-0.84 C
1947
5.6 C
+0.75 C
1948
3.5 C
-1.36 C
1949
3.5 C
-1.38 C
1951
4.5 C
-0.33 C
1952
5.0 C
+0.16 C
1953
5.8 C
+0.96 C
1954
4.4 C
-0.45 C
1955
3.3 C
-1.53 C
1956
4.6 C
-0.26 C
1957
5.0 C
+0.10 C
1958
6.5 C
+1.62 C
1959
4.9 C
+0.05 C
1961
5.1 C
+0.25 C
1962
5.0 C
+0.12 C
1963
5.6 C
+0.72 C
1964
3.8 C
-1.09 C
1965
5.5 C
+0.59 C
The fitted trend in annual mean temperature here over 1912 to 1965 is -0.03 C (-0.18 to 0.12) per decade. The interval includes zero, so the trend is not clearly different from zero. In Fahrenheit: -0.1 F (-0.3 to 0.2) per decade. The slope is a straight line fitted to 49 complete years; the brackets give its 95 percent interval.
Fitted temperature trends per decade at Bumping Lake
Measure
Per decade (C)
Per decade (F)
Period
Complete years
Reading
Annual mean temperature
-0.03 C (-0.18 to 0.12) per decade
-0.1 F (-0.3 to 0.2) per decade
1912 to 1965
49
Not clearly different from zero
Mean daily maximum
0.02 C (-0.14 to 0.19) per decade
0.04 F (-0.26 to 0.34) per decade
1912 to 1965
49
Not clearly different from zero
Mean daily minimum
-0.1 C (-0.3 to 0.1) per decade
-0.2 F (-0.5 to 0.2) per decade
1912 to 1965
49
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
1910 to 1967
Yearly extremes at Bumping Lake: the record and the median year
Measure
Record
Year of the record
Median year
Years with a value
Hottest day (TXx)
38.3 C (100.9 F)
1939
33.3 C (91.9 F)
58
Coldest night (TNn)
-38.9 C (-38.0 F)
1950
-24.4 C (-11.9 F)
58
Wettest day (Rx1day)
99.6 mm (3.9 in)
1933
59.4 mm (2.3 in)
58
Wettest five days (Rx5day)
275.6 mm (10.9 in)
1933
139.2 mm (5.5 in)
58
Longest dry spell (CDD)
76 days
1922
31 days
58
Hottest day (TXx)
The hottest day of the year at Bumping Lake, 1910 to 1967. The record is 38.3 C (100.9 F) in 1939, marked on the chart; the median year is 33.3 C (91.9 F).
Hottest day (TXx) at Bumping Lake by year
Year
Hottest day (TXx)
1910
33.9 C (93.0 F)
1911
34.4 C (93.9 F)
1912
32.2 C (90.0 F)
1913
34.4 C (93.9 F)
1914
32.8 C (91.0 F)
1915
34.4 C (93.9 F)
1916
32.8 C (91.0 F)
1917
33.3 C (91.9 F)
1918
33.3 C (91.9 F)
1919
32.8 C (91.0 F)
1920
33.3 C (91.9 F)
1921
31.7 C (89.1 F)
1922
33.3 C (91.9 F)
1923
32.2 C (90.0 F)
1924
33.9 C (93.0 F)
1925
35.6 C (96.1 F)
1926
35.0 C (95.0 F)
1927
33.9 C (93.0 F)
1928
33.9 C (93.0 F)
1929
33.3 C (91.9 F)
1930
32.8 C (91.0 F)
1931
33.3 C (91.9 F)
1932
31.7 C (89.1 F)
1933
35.0 C (95.0 F)
1934
35.6 C (96.1 F)
1935
35.6 C (96.1 F)
1936
31.7 C (89.1 F)
1937
32.8 C (91.0 F)
1938
35.6 C (96.1 F)
1939
38.3 C (100.9 F)
1940
36.1 C (97.0 F)
1941
37.2 C (99.0 F)
1942
35.0 C (95.0 F)
1943
33.3 C (91.9 F)
1944
34.4 C (93.9 F)
1945
34.4 C (93.9 F)
1946
36.1 C (97.0 F)
1947
32.2 C (90.0 F)
1948
31.1 C (88.0 F)
1949
33.3 C (91.9 F)
1950
32.2 C (90.0 F)
1951
33.3 C (91.9 F)
1952
36.7 C (98.1 F)
1953
33.3 C (91.9 F)
1954
28.9 C (84.0 F)
1955
34.4 C (93.9 F)
1956
33.9 C (93.0 F)
1957
31.1 C (88.0 F)
1958
35.0 C (95.0 F)
1959
34.4 C (93.9 F)
1960
35.6 C (96.1 F)
1961
36.7 C (98.1 F)
1962
32.8 C (91.0 F)
1963
33.3 C (91.9 F)
1964
32.2 C (90.0 F)
1965
33.9 C (93.0 F)
1966
32.2 C (90.0 F)
1967
30.6 C (87.1 F)
Coldest night (TNn)
The coldest night of the year at Bumping Lake, 1910 to 1967. The record is -38.9 C (-38.0 F) in 1950, marked on the chart; the median year is -24.4 C (-11.9 F).
Coldest night (TNn) at Bumping Lake by year
Year
Coldest night (TNn)
1910
-17.2 C (1.0 F)
1911
-23.3 C (-9.9 F)
1912
-23.3 C (-9.9 F)
1913
-25.6 C (-14.1 F)
1914
-22.2 C (-8.0 F)
1915
-25.6 C (-14.1 F)
1916
-27.8 C (-18.0 F)
1917
-22.8 C (-9.0 F)
1918
-22.8 C (-9.0 F)
1919
-33.3 C (-27.9 F)
1920
-16.1 C (3.0 F)
1921
-23.3 C (-9.9 F)
1922
-30.0 C (-22.0 F)
1923
-27.2 C (-17.0 F)
1924
-29.4 C (-20.9 F)
1925
-20.0 C (-4.0 F)
1926
-12.2 C (10.0 F)
1927
-35.0 C (-31.0 F)
1928
-20.0 C (-4.0 F)
1929
-30.6 C (-23.1 F)
1930
-31.7 C (-25.1 F)
1931
-22.2 C (-8.0 F)
1932
-24.4 C (-11.9 F)
1933
-35.6 C (-32.1 F)
1934
-15.0 C (5.0 F)
1935
-33.3 C (-27.9 F)
1936
-28.9 C (-20.0 F)
1937
-31.7 C (-25.1 F)
1938
-20.6 C (-5.1 F)
1939
-19.4 C (-2.9 F)
1940
-17.8 C (0.0 F)
1941
-17.8 C (0.0 F)
1942
-23.3 C (-9.9 F)
1943
-31.7 C (-25.1 F)
1944
-24.4 C (-11.9 F)
1945
-20.6 C (-5.1 F)
1946
-19.4 C (-2.9 F)
1947
-23.9 C (-11.0 F)
1948
-27.2 C (-17.0 F)
1949
-33.3 C (-27.9 F)
1950
-38.9 C (-38.0 F)
1951
-26.7 C (-16.1 F)
1952
-30.0 C (-22.0 F)
1953
-17.8 C (0.0 F)
1954
-31.7 C (-25.1 F)
1955
-27.8 C (-18.0 F)
1956
-30.6 C (-23.1 F)
1957
-33.3 C (-27.9 F)
1958
-18.3 C (-0.9 F)
1959
-24.4 C (-11.9 F)
1960
-24.4 C (-11.9 F)
1961
-23.9 C (-11.0 F)
1962
-27.8 C (-18.0 F)
1963
-22.8 C (-9.0 F)
1964
-30.6 C (-23.1 F)
1965
-16.7 C (1.9 F)
1966
-20.6 C (-5.1 F)
1967
1.1 C (34.0 F)
Wettest day (Rx1day)
The wettest day of the year at Bumping Lake, 1910 to 1967. The record is 99.6 mm (3.9 in) in 1933, marked on the chart; the median year is 59.4 mm (2.3 in).
Wettest day (Rx1day) at Bumping Lake by year
Year
Wettest day (Rx1day)
1910
76.2 mm (3.0 in)
1911
78.2 mm (3.1 in)
1912
30.5 mm (1.2 in)
1913
41.9 mm (1.6 in)
1914
53.3 mm (2.1 in)
1915
56.1 mm (2.2 in)
1916
57.4 mm (2.3 in)
1917
77.7 mm (3.1 in)
1918
62.2 mm (2.4 in)
1919
94.0 mm (3.7 in)
1920
60.5 mm (2.4 in)
1921
70.4 mm (2.8 in)
1922
47.0 mm (1.9 in)
1923
70.6 mm (2.8 in)
1924
42.9 mm (1.7 in)
1925
42.4 mm (1.7 in)
1926
47.2 mm (1.9 in)
1927
70.6 mm (2.8 in)
1928
47.8 mm (1.9 in)
1929
67.1 mm (2.6 in)
1930
38.9 mm (1.5 in)
1931
53.6 mm (2.1 in)
1932
84.6 mm (3.3 in)
1933
99.6 mm (3.9 in)
1934
87.6 mm (3.4 in)
1935
83.8 mm (3.3 in)
1936
56.4 mm (2.2 in)
1937
59.4 mm (2.3 in)
1938
32.5 mm (1.3 in)
1939
48.8 mm (1.9 in)
1940
46.7 mm (1.8 in)
1941
59.4 mm (2.3 in)
1942
62.0 mm (2.4 in)
1943
36.6 mm (1.4 in)
1944
41.7 mm (1.6 in)
1945
64.8 mm (2.6 in)
1946
83.1 mm (3.3 in)
1947
38.6 mm (1.5 in)
1948
61.0 mm (2.4 in)
1949
58.2 mm (2.3 in)
1950
84.1 mm (3.3 in)
1951
53.3 mm (2.1 in)
1952
48.0 mm (1.9 in)
1953
55.9 mm (2.2 in)
1954
86.1 mm (3.4 in)
1955
72.1 mm (2.8 in)
1956
65.8 mm (2.6 in)
1957
49.0 mm (1.9 in)
1958
59.2 mm (2.3 in)
1959
78.7 mm (3.1 in)
1960
58.4 mm (2.3 in)
1961
69.6 mm (2.7 in)
1962
63.5 mm (2.5 in)
1963
97.8 mm (3.9 in)
1964
78.7 mm (3.1 in)
1965
63.5 mm (2.5 in)
1966
54.6 mm (2.1 in)
1967
21.8 mm (0.9 in)
Wettest five days (Rx5day)
The wettest five days of the year at Bumping Lake, 1910 to 1967. The record is 275.6 mm (10.9 in) in 1933, marked on the chart; the median year is 139.2 mm (5.5 in).
Wettest five days (Rx5day) at Bumping Lake by year
Year
Wettest five days (Rx5day)
1910
118.1 mm (4.6 in)
1911
63.3 mm (2.5 in)
1912
80.0 mm (3.1 in)
1913
106.7 mm (4.2 in)
1914
159.8 mm (6.3 in)
1915
154.4 mm (6.1 in)
1916
134.4 mm (5.3 in)
1917
238.5 mm (9.4 in)
1918
138.4 mm (5.4 in)
1919
188.4 mm (7.4 in)
1920
140.0 mm (5.5 in)
1921
166.5 mm (6.6 in)
1922
133.7 mm (5.3 in)
1923
195.0 mm (7.7 in)
1924
131.3 mm (5.2 in)
1925
100.9 mm (4.0 in)
1926
86.7 mm (3.4 in)
1927
106.6 mm (4.2 in)
1928
97.3 mm (3.8 in)
1929
167.1 mm (6.6 in)
1930
90.7 mm (3.6 in)
1931
118.9 mm (4.7 in)
1932
119.1 mm (4.7 in)
1933
275.6 mm (10.9 in)
1934
196.1 mm (7.7 in)
1935
169.4 mm (6.7 in)
1936
140.7 mm (5.5 in)
1937
217.4 mm (8.6 in)
1938
83.9 mm (3.3 in)
1939
129.1 mm (5.1 in)
1940
89.1 mm (3.5 in)
1941
126.1 mm (5.0 in)
1942
129.3 mm (5.1 in)
1943
90.5 mm (3.6 in)
1944
68.9 mm (2.7 in)
1945
158.6 mm (6.2 in)
1946
208.8 mm (8.2 in)
1947
140.7 mm (5.5 in)
1948
152.2 mm (6.0 in)
1949
156.8 mm (6.2 in)
1950
165.9 mm (6.5 in)
1951
173.2 mm (6.8 in)
1952
112.3 mm (4.4 in)
1953
156.2 mm (6.1 in)
1954
130.6 mm (5.1 in)
1955
149.6 mm (5.9 in)
1956
132.8 mm (5.2 in)
1957
160.7 mm (6.3 in)
1958
147.0 mm (5.8 in)
1959
158.5 mm (6.2 in)
1960
180.0 mm (7.1 in)
1961
122.9 mm (4.8 in)
1962
85.4 mm (3.4 in)
1963
179.4 mm (7.1 in)
1964
198.1 mm (7.8 in)
1965
130.3 mm (5.1 in)
1966
140.7 mm (5.5 in)
1967
26.7 mm (1.1 in)
Longest dry spell (CDD)
The longest dry spell of the year at Bumping Lake, 1910 to 1967. The record is 76 days in 1922, marked on the chart; the median year is 31 days.
Longest dry spell (CDD) at Bumping Lake by year
Year
Longest dry spell (CDD)
1910
57 days
1911
27 days
1912
60 days
1913
26 days
1914
56 days
1915
23 days
1916
26 days
1917
40 days
1918
45 days
1919
50 days
1920
37 days
1921
45 days
1922
76 days
1923
39 days
1924
29 days
1925
75 days
1926
47 days
1927
37 days
1928
27 days
1929
18 days
1930
31 days
1931
29 days
1932
26 days
1933
24 days
1934
37 days
1935
28 days
1936
43 days
1937
28 days
1938
36 days
1939
37 days
1940
41 days
1941
22 days
1942
22 days
1943
26 days
1944
43 days
1945
37 days
1946
45 days
1947
32 days
1948
18 days
1949
30 days
1950
31 days
1951
56 days
1952
40 days
1953
29 days
1954
23 days
1955
48 days
1956
28 days
1957
29 days
1958
34 days
1959
24 days
1960
36 days
1961
29 days
1962
24 days
1963
24 days
1964
13 days
1965
24 days
1966
32 days
1967
7 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
49 years with a frost
Across 49 years with a frost, the median last spring frost at Bumping Lake falls on 19 June and the median first autumn frost on 26 August, which leaves a median of 70 days between them.
Fitted over all years, the growing season changes by +1.2 days per decade at this station.
Frost dates and growing season at Bumping Lake
Measure
Median, all years
Earliest period
Recent period (1934 to 1965)
Recent against earliest
Fitted trend
Last spring frost
19 June
n/a
19 June
n/a
-0.9 days per decade
First autumn frost
26 August
n/a
24 August
n/a
+0.2 days per decade
Growing days
70 days
n/a
72 days
n/a
+1.2 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
49 years, 1912 to 1966
A day with at least 61.0 mm (2.4 in) of rain is expected about once in 2 years. A day with at least 108.0 mm (4.3 in) of rain is expected about once in 100 years.
Rainfall return levels at Bumping Lake: the daily rain expected about once in a given number of years
Expected about once in
A day with at least
Note
2 years
61.0 mm (2.4 in)
5 years
76.5 mm (3.0 in)
10 years
85.4 mm (3.4 in)
25 years
95.5 mm (3.8 in)
50 years
102.1 mm (4.0 in)
Longer than the 49 years of record
100 years
108.0 mm (4.3 in)
Longer than the 49 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, 49 years of values from 1912 to 1966.
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: 99.6 mm (3.9 in) in 1933; 97.8 mm (3.9 in) in 1963; 94.0 mm (3.7 in) in 1919.
Station Changes
No change in the annual mean temperature of this station was found against its neighbours.
Download the Data
Data for Bumping Lake standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Bumping Lake 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.