Record envelope, standing records and threshold days for Ephrata (USC00452609), Washington, United States, with 69 years of record.
Key Facts for Ephrata
Ephrata (USC00452609) is a weather station in Washington, United States at 47.32 latitude and -119.57 longitude, 415 m (1,362 ft) above sea level.
The station reports from 1903 to 1971, 69 years of record.
1,464 records set at Ephrata still stand.
Records are tracked for tmax, tmin, prcp, snow, snwd: an element needs 30 years of data to be eligible.
Ephrata set a daily record snowfall of 3.0 cm (1.2 in) on 9 March 1971.
About the Station
Location: Washington, United States, 47.32 latitude, -119.57 longitude.
Elevation: 415 m (1,362 ft).
Period of record: 1903 to 1971, 69 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 Ephrata. 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 Ephrata, with 2026 drawn through them
Month
Highest record high
Lowest record low
2026 highest maximum
2026 lowest minimum
Jan
18.3 C (64.9 F)
-27.2 C (-17.0 F)
n/a
n/a
Feb
20.0 C (68.0 F)
-30.6 C (-23.1 F)
n/a
n/a
Mar
25.0 C (77.0 F)
-16.1 C (3.0 F)
n/a
n/a
Apr
33.9 C (93.0 F)
-8.9 C (16.0 F)
n/a
n/a
May
38.3 C (100.9 F)
-2.2 C (28.0 F)
n/a
n/a
Jun
41.1 C (106.0 F)
-0.6 C (30.9 F)
n/a
n/a
Jul
45.0 C (113.0 F)
3.3 C (37.9 F)
n/a
n/a
Aug
43.9 C (111.0 F)
2.8 C (37.0 F)
n/a
n/a
Sep
38.9 C (102.0 F)
-6.7 C (19.9 F)
n/a
n/a
Oct
32.2 C (90.0 F)
-11.1 C (12.0 F)
n/a
n/a
Nov
25.0 C (77.0 F)
-17.8 C (0.0 F)
n/a
n/a
Dec
17.8 C (64.0 F)
-26.1 C (-15.0 F)
n/a
n/a
Which Years Hold Standing Records
1,464 standing records
Year with most
1,464 records at Ephrata still stand. 1934 holds the most, with 48.
Standing records at Ephrata by the year they were set
Year set
Standing records
1903
11
1904
25
1905
27
1906
32
1907
34
1908
12
1909
19
1910
45
1911
28
1912
13
1920
7
1921
20
1922
32
1923
20
1924
38
1925
28
1926
27
1927
22
1928
26
1929
22
1930
21
1931
26
1932
27
1933
37
1934
48
1935
25
1936
43
1937
31
1938
26
1939
32
1940
14
1941
20
1942
15
1943
23
1944
24
1945
17
1946
12
1947
22
1948
16
1949
33
1950
22
1951
7
1952
16
1953
25
1954
12
1955
38
1956
31
1957
20
1958
31
1959
15
1960
27
1961
26
1962
38
1963
20
1964
17
1965
15
1966
18
1967
20
1968
34
1969
12
1970
15
1971
5
All-Time Record Progression
2 new records
2 all-time records were set at Ephrata between 29 December 1968 and 30 December 1968. Each dot is a new record.
When Ephrata set new all-time records
Date
Kind
Detail
1968-12-29
Record low maximum temperature
Record low maximum temperature -23.3 C (-9.9 F)
1968-12-30
Record low maximum temperature
Record low maximum temperature -23.9 C (-11.0 F)
Wettest Day of Each Month
May: 44.5 mm (1.8 in)
The wettest day on record for each calendar month at Ephrata. The most was 44.5 mm (1.8 in) on 20 May 1912.
Record daily precipitation for each month at Ephrata
Month
Record daily precipitation (mm)
Date
Jan
29.2 mm (1.1 in)
23 January 1970
Feb
19.1 mm (0.8 in)
17 February 1940
Mar
17.0 mm (0.7 in)
21 March 1966
Apr
20.6 mm (0.8 in)
3 April 1923
May
44.5 mm (1.8 in)
20 May 1912
Jun
36.6 mm (1.4 in)
11 June 1948
Jul
17.8 mm (0.7 in)
13 July 1920
Aug
30.5 mm (1.2 in)
4 August 1911
Sep
22.9 mm (0.9 in)
11 September 1907
Oct
21.6 mm (0.9 in)
5 October 1905
Nov
25.7 mm (1.0 in)
11 November 1903
Dec
27.9 mm (1.1 in)
27 December 1965
Period of Record Coverage
1903 to 1971
Complete yearUnder 90 percent of days
62 years of record at Ephrata, 1903 to 1971. 13 years have data for under 90 percent of days and are left out of rankings: 1903, 1905, 1906, 1907, 1908, 1909, 1911, 1912 and others.
Cooler than the station meanWarmer than the station mean
One stripe for each of 47 complete years at Ephrata, 1904 to 1970. Blue stripes are years cooler than the station's own mean of 11.2 C (52.2 F); red stripes are warmer. The coolest year was 1955, at 9.6 C (49.2 F), and the warmest was 1934, at 13.4 C (56.0 F). The strongest colour marks a difference of 2.2 C (4.0 F).
Annual mean temperature at Ephrata as warming stripes, 1904 to 1970
Year
Annual mean temperature
Difference from the station mean
1904
11.3 C
+0.07 C
1910
12.0 C
+0.77 C
1911
10.4 C
-0.87 C
1921
10.9 C
-0.37 C
1922
10.2 C
-1.08 C
1923
11.5 C
+0.24 C
1924
11.4 C
+0.21 C
1926
12.1 C
+0.83 C
1927
10.3 C
-0.93 C
1928
11.2 C
+0.00 C
1929
9.9 C
-1.33 C
1930
10.8 C
-0.47 C
1931
11.2 C
-0.03 C
1932
10.6 C
-0.65 C
1933
10.6 C
-0.64 C
1934
13.4 C
+2.12 C
1935
10.7 C
-0.53 C
1936
11.2 C
-0.02 C
1937
10.5 C
-0.72 C
1938
12.6 C
+1.38 C
1939
12.7 C
+1.48 C
1940
12.8 C
+1.55 C
1941
12.4 C
+1.16 C
1942
11.6 C
+0.34 C
1943
11.0 C
-0.28 C
1944
11.7 C
+0.50 C
1945
11.8 C
+0.52 C
1946
11.4 C
+0.17 C
1948
10.0 C
-1.28 C
1949
10.9 C
-0.35 C
1952
11.5 C
+0.31 C
1953
12.4 C
+1.16 C
1954
10.9 C
-0.34 C
1955
9.6 C
-1.67 C
1956
11.0 C
-0.19 C
1957
10.9 C
-0.34 C
1958
13.1 C
+1.83 C
1959
11.0 C
-0.27 C
1960
11.0 C
-0.19 C
1963
11.2 C
-0.01 C
1964
10.3 C
-0.95 C
1965
11.3 C
+0.06 C
1966
11.4 C
+0.13 C
1967
12.1 C
+0.87 C
1968
11.3 C
+0.04 C
1969
10.0 C
-1.22 C
1970
10.1 C
-1.12 C
The fitted trend in annual mean temperature here over 1904 to 1970 is -0.02 C (-0.18 to 0.13) per decade. The interval includes zero, so the trend is not clearly different from zero. In Fahrenheit: -0.04 F (-0.32 to 0.24) 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 Ephrata
Measure
Per decade (C)
Per decade (F)
Period
Complete years
Reading
Annual mean temperature
-0.02 C (-0.18 to 0.13) per decade
-0.04 F (-0.32 to 0.24) per decade
1904 to 1970
47
Not clearly different from zero
Mean daily maximum
-0.1 C (-0.3 to 0.1) per decade
-0.1 F (-0.5 to 0.2) per decade
1904 to 1970
47
Not clearly different from zero
Mean daily minimum
0.04 C (-0.13 to 0.21) per decade
0.1 F (-0.2 to 0.4) per decade
1904 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
1903 to 1971
Yearly extremes at Ephrata: the record and the median year
Measure
Record
Year of the record
Median year
Years with a value
Hottest day (TXx)
45.0 C (113.0 F)
1939
40.6 C (105.1 F)
62
Coldest night (TNn)
-30.6 C (-23.1 F)
1933
-18.0 C (-0.5 F)
62
Wettest day (Rx1day)
44.5 mm (1.8 in)
1912
16.0 mm (0.6 in)
62
Wettest five days (Rx5day)
68.5 mm (2.7 in)
1937
27.1 mm (1.1 in)
62
Longest dry spell (CDD)
122 days
1910
55 days
62
Hottest day (TXx)
The hottest day of the year at Ephrata, 1903 to 1971. The record is 45.0 C (113.0 F) in 1939, marked on the chart; the median year is 40.6 C (105.1 F).
Hottest day (TXx) at Ephrata by year
Year
Hottest day (TXx)
1903
41.7 C (107.1 F)
1904
40.6 C (105.1 F)
1905
42.8 C (109.0 F)
1906
42.8 C (109.0 F)
1907
40.6 C (105.1 F)
1908
41.1 C (106.0 F)
1909
37.2 C (99.0 F)
1910
37.8 C (100.0 F)
1911
41.7 C (107.1 F)
1912
37.8 C (100.0 F)
1920
39.4 C (102.9 F)
1921
37.2 C (99.0 F)
1922
41.7 C (107.1 F)
1923
40.0 C (104.0 F)
1924
42.2 C (108.0 F)
1925
41.1 C (106.0 F)
1926
42.2 C (108.0 F)
1927
40.0 C (104.0 F)
1928
44.4 C (111.9 F)
1929
41.7 C (107.1 F)
1930
41.1 C (106.0 F)
1931
41.1 C (106.0 F)
1932
39.4 C (102.9 F)
1933
40.6 C (105.1 F)
1934
41.7 C (107.1 F)
1935
43.3 C (109.9 F)
1936
41.1 C (106.0 F)
1937
40.6 C (105.1 F)
1938
42.8 C (109.0 F)
1939
45.0 C (113.0 F)
1940
39.4 C (102.9 F)
1941
42.8 C (109.0 F)
1942
41.7 C (107.1 F)
1943
38.3 C (100.9 F)
1944
39.4 C (102.9 F)
1945
38.9 C (102.0 F)
1946
39.4 C (102.9 F)
1947
37.8 C (100.0 F)
1948
37.2 C (99.0 F)
1949
40.6 C (105.1 F)
1950
17.2 C (63.0 F)
1951
36.7 C (98.1 F)
1952
40.6 C (105.1 F)
1953
39.4 C (102.9 F)
1954
37.2 C (99.0 F)
1955
41.1 C (106.0 F)
1956
41.1 C (106.0 F)
1957
36.7 C (98.1 F)
1958
40.6 C (105.1 F)
1959
40.6 C (105.1 F)
1960
42.8 C (109.0 F)
1961
43.9 C (111.0 F)
1962
39.4 C (102.9 F)
1963
37.8 C (100.0 F)
1964
39.4 C (102.9 F)
1965
37.8 C (100.0 F)
1966
38.3 C (100.9 F)
1967
39.4 C (102.9 F)
1968
40.0 C (104.0 F)
1969
36.1 C (97.0 F)
1970
38.3 C (100.9 F)
1971
18.3 C (64.9 F)
Coldest night (TNn)
The coldest night of the year at Ephrata, 1903 to 1971. The record is -30.6 C (-23.1 F) in 1933, marked on the chart; the median year is -18.0 C (-0.5 F).
Coldest night (TNn) at Ephrata by year
Year
Coldest night (TNn)
1903
-11.1 C (12.0 F)
1904
-12.2 C (10.0 F)
1905
-18.3 C (-0.9 F)
1906
-20.0 C (-4.0 F)
1907
-22.8 C (-9.0 F)
1908
-11.1 C (12.0 F)
1909
-24.4 C (-11.9 F)
1910
-19.4 C (-2.9 F)
1911
-18.9 C (-2.0 F)
1912
-21.1 C (-6.0 F)
1920
-9.4 C (15.1 F)
1921
-13.9 C (7.0 F)
1922
-24.4 C (-11.9 F)
1923
-17.8 C (0.0 F)
1924
-21.1 C (-6.0 F)
1925
-15.0 C (5.0 F)
1926
-17.2 C (1.0 F)
1927
-22.8 C (-9.0 F)
1928
-14.4 C (6.1 F)
1929
-27.2 C (-17.0 F)
1930
-24.4 C (-11.9 F)
1931
-21.7 C (-7.1 F)
1932
-20.6 C (-5.1 F)
1933
-30.6 C (-23.1 F)
1934
-7.8 C (18.0 F)
1935
-21.1 C (-6.0 F)
1936
-22.2 C (-8.0 F)
1937
-23.3 C (-9.9 F)
1938
-10.0 C (14.0 F)
1939
-16.7 C (1.9 F)
1940
-11.1 C (12.0 F)
1941
-9.4 C (15.1 F)
1942
-20.0 C (-4.0 F)
1943
-22.8 C (-9.0 F)
1944
-16.1 C (3.0 F)
1945
-11.7 C (10.9 F)
1946
-12.2 C (10.0 F)
1947
-16.7 C (1.9 F)
1948
-18.9 C (-2.0 F)
1949
-22.8 C (-9.0 F)
1950
-27.8 C (-18.0 F)
1951
-17.8 C (0.0 F)
1952
-19.4 C (-2.9 F)
1953
-8.9 C (16.0 F)
1954
-17.8 C (0.0 F)
1955
-17.8 C (0.0 F)
1956
-20.6 C (-5.1 F)
1957
-26.1 C (-15.0 F)
1958
-9.4 C (15.1 F)
1959
-18.9 C (-2.0 F)
1960
-17.2 C (1.0 F)
1961
-16.7 C (1.9 F)
1962
-17.2 C (1.0 F)
1963
-20.0 C (-4.0 F)
1964
-23.3 C (-9.9 F)
1965
-16.7 C (1.9 F)
1966
-13.3 C (8.1 F)
1967
-12.8 C (9.0 F)
1968
-26.1 C (-15.0 F)
1969
-20.0 C (-4.0 F)
1970
-17.2 C (1.0 F)
1971
-16.1 C (3.0 F)
Wettest day (Rx1day)
The wettest day of the year at Ephrata, 1903 to 1971. The record is 44.5 mm (1.8 in) in 1912, marked on the chart; the median year is 16.0 mm (0.6 in).
Wettest day (Rx1day) at Ephrata by year
Year
Wettest day (Rx1day)
1903
25.7 mm (1.0 in)
1904
10.2 mm (0.4 in)
1905
27.9 mm (1.1 in)
1906
16.5 mm (0.6 in)
1907
25.4 mm (1.0 in)
1908
12.7 mm (0.5 in)
1909
20.3 mm (0.8 in)
1910
2.5 mm (0.10 in)
1911
30.5 mm (1.2 in)
1912
44.5 mm (1.8 in)
1920
17.8 mm (0.7 in)
1921
23.1 mm (0.9 in)
1922
15.7 mm (0.6 in)
1923
20.6 mm (0.8 in)
1924
14.2 mm (0.6 in)
1925
36.8 mm (1.4 in)
1926
27.2 mm (1.1 in)
1927
16.0 mm (0.6 in)
1928
17.0 mm (0.7 in)
1929
10.2 mm (0.4 in)
1930
20.6 mm (0.8 in)
1931
17.8 mm (0.7 in)
1932
13.2 mm (0.5 in)
1933
21.1 mm (0.8 in)
1934
14.5 mm (0.6 in)
1935
10.2 mm (0.4 in)
1936
21.8 mm (0.9 in)
1937
29.2 mm (1.1 in)
1938
14.7 mm (0.6 in)
1939
10.2 mm (0.4 in)
1940
19.1 mm (0.8 in)
1941
15.7 mm (0.6 in)
1942
20.6 mm (0.8 in)
1943
23.4 mm (0.9 in)
1944
19.3 mm (0.8 in)
1945
12.7 mm (0.5 in)
1946
12.7 mm (0.5 in)
1947
13.7 mm (0.5 in)
1948
36.6 mm (1.4 in)
1949
17.8 mm (0.7 in)
1950
12.4 mm (0.5 in)
1951
10.2 mm (0.4 in)
1952
11.9 mm (0.5 in)
1953
14.0 mm (0.6 in)
1954
11.4 mm (0.4 in)
1955
14.0 mm (0.6 in)
1956
17.5 mm (0.7 in)
1957
14.0 mm (0.6 in)
1958
15.0 mm (0.6 in)
1959
15.7 mm (0.6 in)
1960
19.8 mm (0.8 in)
1961
10.9 mm (0.4 in)
1962
16.5 mm (0.6 in)
1963
16.0 mm (0.6 in)
1964
14.7 mm (0.6 in)
1965
27.9 mm (1.1 in)
1966
17.0 mm (0.7 in)
1967
12.2 mm (0.5 in)
1968
13.2 mm (0.5 in)
1969
13.2 mm (0.5 in)
1970
29.2 mm (1.1 in)
1971
7.4 mm (0.29 in)
Wettest five days (Rx5day)
The wettest five days of the year at Ephrata, 1903 to 1971. The record is 68.5 mm (2.7 in) in 1937, marked on the chart; the median year is 27.1 mm (1.1 in).
Wettest five days (Rx5day) at Ephrata by year
Year
Wettest five days (Rx5day)
1903
30.8 mm (1.2 in)
1904
20.3 mm (0.8 in)
1905
46.0 mm (1.8 in)
1906
20.3 mm (0.8 in)
1907
25.4 mm (1.0 in)
1908
14.2 mm (0.6 in)
1909
17.8 mm (0.7 in)
1910
6.3 mm (0.25 in)
1911
41.9 mm (1.6 in)
1912
50.8 mm (2.0 in)
1920
30.9 mm (1.2 in)
1921
33.7 mm (1.3 in)
1922
23.8 mm (0.9 in)
1923
29.7 mm (1.2 in)
1924
28.4 mm (1.1 in)
1925
36.8 mm (1.4 in)
1926
27.5 mm (1.1 in)
1927
30.8 mm (1.2 in)
1928
23.6 mm (0.9 in)
1929
14.0 mm (0.6 in)
1930
26.1 mm (1.0 in)
1931
35.0 mm (1.4 in)
1932
28.7 mm (1.1 in)
1933
27.7 mm (1.1 in)
1934
23.6 mm (0.9 in)
1935
15.2 mm (0.6 in)
1936
42.4 mm (1.7 in)
1937
68.5 mm (2.7 in)
1938
28.4 mm (1.1 in)
1939
15.0 mm (0.6 in)
1940
29.3 mm (1.2 in)
1941
30.0 mm (1.2 in)
1942
29.8 mm (1.2 in)
1943
39.9 mm (1.6 in)
1944
29.0 mm (1.1 in)
1945
22.5 mm (0.9 in)
1946
19.0 mm (0.7 in)
1947
15.5 mm (0.6 in)
1948
46.5 mm (1.8 in)
1949
24.9 mm (1.0 in)
1950
18.2 mm (0.7 in)
1951
24.4 mm (1.0 in)
1952
22.8 mm (0.9 in)
1953
26.6 mm (1.0 in)
1954
20.3 mm (0.8 in)
1955
25.5 mm (1.0 in)
1956
29.4 mm (1.2 in)
1957
24.9 mm (1.0 in)
1958
24.7 mm (1.0 in)
1959
27.2 mm (1.1 in)
1960
30.0 mm (1.2 in)
1961
21.9 mm (0.9 in)
1962
22.9 mm (0.9 in)
1963
28.7 mm (1.1 in)
1964
26.0 mm (1.0 in)
1965
53.3 mm (2.1 in)
1966
29.2 mm (1.1 in)
1967
26.9 mm (1.1 in)
1968
29.7 mm (1.2 in)
1969
24.9 mm (1.0 in)
1970
44.7 mm (1.8 in)
1971
12.7 mm (0.5 in)
Longest dry spell (CDD)
The longest dry spell of the year at Ephrata, 1903 to 1971. The record is 122 days in 1910, marked on the chart; the median year is 55 days.
Longest dry spell (CDD) at Ephrata by year
Year
Longest dry spell (CDD)
1903
51 days
1904
45 days
1905
61 days
1906
69 days
1907
96 days
1908
77 days
1909
47 days
1910
122 days
1911
34 days
1912
14 days
1920
42 days
1921
71 days
1922
104 days
1923
35 days
1924
101 days
1925
86 days
1926
47 days
1927
40 days
1928
39 days
1929
96 days
1930
57 days
1931
80 days
1932
69 days
1933
35 days
1934
56 days
1935
68 days
1936
53 days
1937
53 days
1938
77 days
1939
59 days
1940
86 days
1941
27 days
1942
86 days
1943
46 days
1944
49 days
1945
64 days
1946
48 days
1947
29 days
1948
32 days
1949
92 days
1950
8 days
1951
27 days
1952
116 days
1953
51 days
1954
40 days
1955
48 days
1956
44 days
1957
44 days
1958
66 days
1959
84 days
1960
80 days
1961
23 days
1962
46 days
1963
69 days
1964
42 days
1965
71 days
1966
69 days
1967
75 days
1968
38 days
1969
85 days
1970
73 days
1971
32 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 Ephrata falls on 22 April and the median first autumn frost on 16 October, which leaves a median of 176 days between them.
Fitted over all years, the growing season changes by +1.9 days per decade at this station.
Frost dates and growing season at Ephrata
Measure
Median, all years
Earliest period
Recent period (1936 to 1970)
Recent against earliest
Fitted trend
Last spring frost
22 April
n/a
21 April
n/a
-2.1 days per decade
First autumn frost
16 October
n/a
18 October
n/a
-0.3 days per decade
Growing days
176 days
n/a
176 days
n/a
+1.9 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
50 years, 1904 to 1970
A day with at least 16.3 mm (0.6 in) of rain is expected about once in 2 years. A day with at least 42.7 mm (1.7 in) of rain is expected about once in 100 years.
Rainfall return levels at Ephrata: the daily rain expected about once in a given number of years
Expected about once in
A day with at least
Note
2 years
16.3 mm (0.6 in)
5 years
21.7 mm (0.9 in)
10 years
25.8 mm (1.0 in)
25 years
31.9 mm (1.3 in)
50 years
37.0 mm (1.5 in)
100 years
42.7 mm (1.7 in)
Longer than the 50 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, 50 years of values from 1904 to 1970.
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: 36.8 mm (1.4 in) in 1925; 36.6 mm (1.4 in) in 1948; 29.2 mm (1.1 in) in 1937.
Station Changes
2 suspected
2 changes were suspected in the annual mean temperature of Ephrata, at 1934 and 1963. Each is measured against neighbouring stations.
Relative to 5 neighbouring stations, the station's annual mean temperature from 1934 ran 0.3 C (0.5 F) higher than in the years before (possible change).
Relative to 5 neighbouring stations, the station's annual mean temperature from 1963 ran 0.4 C (0.8 F) lower than in the years before (possible change).
Suspected changes in the annual mean temperature at Ephrata, against neighbouring stations
Year
Shift (C)
Shift (F)
Strength
Neighbours
1934
+0.3
+0.5
possible
5
1963
-0.4
-0.8
possible
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 Ephrata standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Ephrata 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.