Record envelope, standing records and threshold days for Ephrata (USC00362662), Pennsylvania, United States, with 86 years of record.
Key Facts for Ephrata
Ephrata (USC00362662) is a weather station in Pennsylvania, United States at 40.17 latitude and -76.17 longitude, 155 m (510 ft) above sea level.
The station reports from 1899 to 1984, 86 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 high maximum temperature of 26.7 C (80.1 F) on 28 October 1984.
About the Station
Location: Pennsylvania, United States, 40.17 latitude, -76.17 longitude.
Elevation: 155 m (510 ft).
Period of record: 1899 to 1984, 86 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
25.0 C (77.0 F)
-29.4 C (-20.9 F)
n/a
n/a
Feb
25.0 C (77.0 F)
-25.6 C (-14.1 F)
n/a
n/a
Mar
30.6 C (87.1 F)
-17.8 C (0.0 F)
n/a
n/a
Apr
33.9 C (93.0 F)
-12.2 C (10.0 F)
n/a
n/a
May
36.7 C (98.1 F)
-2.2 C (28.0 F)
n/a
n/a
Jun
38.3 C (100.9 F)
2.2 C (36.0 F)
n/a
n/a
Jul
41.1 C (106.0 F)
7.8 C (46.0 F)
n/a
n/a
Aug
39.4 C (102.9 F)
5.0 C (41.0 F)
n/a
n/a
Sep
38.9 C (102.0 F)
-1.1 C (30.0 F)
n/a
n/a
Oct
35.6 C (96.1 F)
-6.1 C (21.0 F)
n/a
n/a
Nov
28.9 C (84.0 F)
-15.6 C (3.9 F)
n/a
n/a
Dec
21.1 C (70.0 F)
-22.2 C (-8.0 F)
n/a
n/a
Which Years Hold Standing Records
1,464 standing records
Year with most
1,464 records at Ephrata still stand. 1930 holds the most, with 39.
Standing records at Ephrata by the year they were set
Year set
Standing records
1899
5
1900
29
1901
20
1902
14
1903
24
1904
25
1905
24
1906
24
1907
25
1908
25
1909
23
1910
18
1911
17
1912
20
1913
20
1914
27
1915
13
1916
19
1917
32
1918
23
1919
14
1920
1
1921
6
1922
11
1923
19
1924
9
1925
16
1926
22
1927
16
1928
22
1929
27
1930
39
1931
14
1932
30
1933
20
1934
27
1935
20
1936
29
1937
25
1938
26
1939
20
1940
21
1941
25
1942
32
1943
17
1944
5
1945
23
1946
15
1947
20
1948
13
1949
20
1950
17
1951
16
1952
14
1953
14
1954
10
1955
9
1956
10
1957
15
1958
7
1959
7
1960
10
1961
5
1962
15
1963
12
1964
12
1965
12
1966
19
1967
12
1968
6
1969
4
1970
9
1971
8
1972
17
1973
16
1974
15
1975
9
1976
23
1977
13
1978
13
1979
18
1980
11
1981
6
1982
15
1983
14
1984
20
All-Time Record Progression
11 new records
11 all-time records were set at Ephrata between 2 August 1933 and 19 February 1979. Each dot is a new record.
When Ephrata set new all-time records
Date
Kind
Detail
1933-08-02
Record high minimum temperature
Record high minimum temperature 25.0 C (77.0 F)
1936-07-09
Record high maximum temperature
Record high maximum temperature 41.1 C (106.0 F)
1942-08-17
Record daily precipitation
Record daily precipitation 115.8 mm (4.6 in)
1947-08-15
Record high minimum temperature
Record high minimum temperature 28.3 C (82.9 F)
1958-02-16
Record daily snowfall
Record daily snowfall 38.1 cm (15.0 in)
1958-03-20
Record daily snowfall
Record daily snowfall 53.3 cm (21.0 in)
1972-06-22
Record daily precipitation
Record daily precipitation 147.1 mm (5.8 in)
1978-01-20
Record snow depth
Record snow depth 45.7 cm (18.0 in)
1978-02-06
Record snow depth
Record snow depth 50.8 cm (20.0 in)
1978-02-07
Record snow depth
Record snow depth 55.9 cm (22.0 in)
1979-02-19
Record snow depth
Record snow depth 61.0 cm (24.0 in)
Wettest Day of Each Month
Jun: 147.1 mm (5.8 in)
The wettest day on record for each calendar month at Ephrata. The most was 147.1 mm (5.8 in) on 22 June 1972.
Record daily precipitation for each month at Ephrata
Month
Record daily precipitation (mm)
Date
Jan
48.8 mm (1.9 in)
12 January 1915
Feb
86.4 mm (3.4 in)
22 February 1902
Mar
70.4 mm (2.8 in)
27 March 1913
Apr
57.7 mm (2.3 in)
8 April 1940
May
111.0 mm (4.4 in)
19 May 1900
Jun
147.1 mm (5.8 in)
22 June 1972
Jul
128.3 mm (5.1 in)
21 July 1979
Aug
115.8 mm (4.6 in)
17 August 1942
Sep
122.7 mm (4.8 in)
6 September 1979
Oct
96.0 mm (3.8 in)
6 October 1932
Nov
95.3 mm (3.8 in)
25 November 1950
Dec
60.2 mm (2.4 in)
12 December 1983
Period of Record Coverage
1899 to 1984
Complete yearUnder 90 percent of days
86 years of record at Ephrata, 1899 to 1984. 8 years have data for under 90 percent of days and are left out of rankings: 1899, 1919, 1920, 1921, 1925, 1944, 1977, 1984.
Cooler than the station meanWarmer than the station mean
One stripe for each of 73 complete years at Ephrata, 1900 to 1983. Blue stripes are years cooler than the station's own mean of 11.3 C (52.4 F); red stripes are warmer. The coolest year was 1904, at 9.3 C (48.7 F), and the warmest was 1949, at 13.3 C (55.9 F). The strongest colour marks a difference of 2.1 C (3.8 F).
Annual mean temperature at Ephrata as warming stripes, 1900 to 1983
Year
Annual mean temperature
Difference from the station mean
1900
12.3 C
+0.97 C
1901
11.0 C
-0.37 C
1902
11.0 C
-0.36 C
1903
10.8 C
-0.60 C
1904
9.3 C
-2.06 C
1905
10.5 C
-0.87 C
1906
11.4 C
+0.04 C
1907
9.5 C
-1.81 C
1909
10.5 C
-0.85 C
1910
10.4 C
-0.99 C
1911
10.9 C
-0.49 C
1912
10.3 C
-1.06 C
1913
11.8 C
+0.47 C
1914
10.2 C
-1.15 C
1915
11.1 C
-0.29 C
1916
10.6 C
-0.71 C
1917
9.6 C
-1.78 C
1918
10.8 C
-0.52 C
1922
11.9 C
+0.50 C
1923
11.6 C
+0.28 C
1926
10.3 C
-1.08 C
1927
11.3 C
-0.10 C
1928
11.3 C
-0.06 C
1929
11.4 C
+0.00 C
1930
11.8 C
+0.44 C
1931
12.6 C
+1.25 C
1932
12.5 C
+1.19 C
1933
12.4 C
+1.06 C
1934
11.6 C
+0.28 C
1935
11.6 C
+0.25 C
1936
11.9 C
+0.55 C
1937
12.3 C
+0.92 C
1938
12.7 C
+1.34 C
1939
12.6 C
+1.20 C
1940
10.9 C
-0.47 C
1941
12.4 C
+1.05 C
1942
12.1 C
+0.73 C
1943
11.8 C
+0.46 C
1945
11.9 C
+0.58 C
1946
12.6 C
+1.25 C
1947
12.0 C
+0.64 C
1948
11.8 C
+0.45 C
1949
13.3 C
+1.93 C
1950
11.7 C
+0.37 C
1951
12.2 C
+0.84 C
1952
12.3 C
+0.98 C
1953
12.6 C
+1.21 C
1954
11.6 C
+0.26 C
1955
11.0 C
-0.35 C
1956
11.1 C
-0.23 C
1957
11.5 C
+0.17 C
1958
9.9 C
-1.47 C
1959
11.6 C
+0.25 C
1960
11.0 C
-0.31 C
1961
11.2 C
-0.17 C
1962
10.7 C
-0.70 C
1963
11.1 C
-0.23 C
1964
11.6 C
+0.27 C
1965
11.3 C
-0.10 C
1966
11.2 C
-0.11 C
1967
10.8 C
-0.56 C
1968
11.3 C
-0.06 C
1969
11.2 C
-0.20 C
1972
10.6 C
-0.74 C
1973
12.0 C
+0.62 C
1974
11.5 C
+0.18 C
1975
11.6 C
+0.28 C
1976
10.9 C
-0.44 C
1978
10.4 C
-0.97 C
1979
10.9 C
-0.50 C
1980
11.0 C
-0.40 C
1981
10.9 C
-0.48 C
1983
11.4 C
+0.04 C
The fitted trend in annual mean temperature here over 1900 to 1983 is 0.06 C (-0.02 to 0.14) per decade. The interval includes zero, so the trend is not clearly different from zero. In Fahrenheit: 0.10 F (-0.04 to 0.24) per decade. The slope is a straight line fitted to 73 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
0.06 C (-0.02 to 0.14) per decade
0.10 F (-0.04 to 0.24) per decade
1900 to 1983
73
Not clearly different from zero
Mean daily maximum
-0.02 C (-0.12 to 0.07) per decade
-0.04 F (-0.22 to 0.13) per decade
1900 to 1983
73
Not clearly different from zero
Mean daily minimum
0.1 C (0.1 to 0.2) per decade
0.2 F (0.1 to 0.4) per decade
1900 to 1983
73
Rise
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
1899 to 1984
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)
41.1 C (106.0 F)
1936
35.6 C (96.1 F)
86
Coldest night (TNn)
-29.4 C (-20.9 F)
1912
-17.8 C (0.0 F)
86
Wettest day (Rx1day)
147.1 mm (5.8 in)
1972
65.9 mm (2.6 in)
86
Wettest five days (Rx5day)
234.6 mm (9.2 in)
1975
99.8 mm (3.9 in)
86
Longest dry spell (CDD)
36 days
1924
18 days
86
Hottest day (TXx)
The hottest day of the year at Ephrata, 1899 to 1984. The record is 41.1 C (106.0 F) in 1936, marked on the chart; the median year is 35.6 C (96.1 F).
Hottest day (TXx) at Ephrata by year
Year
Hottest day (TXx)
1899
33.3 C (91.9 F)
1900
39.4 C (102.9 F)
1901
38.9 C (102.0 F)
1902
34.4 C (93.9 F)
1903
35.0 C (95.0 F)
1904
35.0 C (95.0 F)
1905
36.7 C (98.1 F)
1906
35.0 C (95.0 F)
1907
32.8 C (91.0 F)
1908
37.8 C (100.0 F)
1909
36.7 C (98.1 F)
1910
34.4 C (93.9 F)
1911
38.3 C (100.9 F)
1912
36.1 C (97.0 F)
1913
36.1 C (97.0 F)
1914
34.4 C (93.9 F)
1915
33.3 C (91.9 F)
1916
35.6 C (96.1 F)
1917
36.1 C (97.0 F)
1918
38.9 C (102.0 F)
1919
33.9 C (93.0 F)
1920
37.2 C (99.0 F)
1921
35.0 C (95.0 F)
1922
33.3 C (91.9 F)
1923
36.7 C (98.1 F)
1924
35.6 C (96.1 F)
1925
35.0 C (95.0 F)
1926
36.7 C (98.1 F)
1927
35.6 C (96.1 F)
1928
33.9 C (93.0 F)
1929
34.4 C (93.9 F)
1930
38.3 C (100.9 F)
1931
35.6 C (96.1 F)
1932
37.8 C (100.0 F)
1933
38.9 C (102.0 F)
1934
38.3 C (100.9 F)
1935
37.2 C (99.0 F)
1936
41.1 C (106.0 F)
1937
38.3 C (100.9 F)
1938
37.8 C (100.0 F)
1939
37.8 C (100.0 F)
1940
38.9 C (102.0 F)
1941
38.9 C (102.0 F)
1942
36.7 C (98.1 F)
1943
37.2 C (99.0 F)
1944
33.3 C (91.9 F)
1945
36.1 C (97.0 F)
1946
35.6 C (96.1 F)
1947
35.6 C (96.1 F)
1948
37.8 C (100.0 F)
1949
38.3 C (100.9 F)
1950
35.0 C (95.0 F)
1951
35.6 C (96.1 F)
1952
37.8 C (100.0 F)
1953
38.9 C (102.0 F)
1954
38.9 C (102.0 F)
1955
39.4 C (102.9 F)
1956
35.0 C (95.0 F)
1957
37.2 C (99.0 F)
1958
32.8 C (91.0 F)
1959
35.6 C (96.1 F)
1960
31.7 C (89.1 F)
1961
32.8 C (91.0 F)
1962
35.6 C (96.1 F)
1963
36.7 C (98.1 F)
1964
36.7 C (98.1 F)
1965
34.4 C (93.9 F)
1966
40.6 C (105.1 F)
1967
33.9 C (93.0 F)
1968
35.0 C (95.0 F)
1969
35.6 C (96.1 F)
1970
33.3 C (91.9 F)
1971
32.8 C (91.0 F)
1972
32.2 C (90.0 F)
1973
35.6 C (96.1 F)
1974
33.3 C (91.9 F)
1975
33.3 C (91.9 F)
1976
33.9 C (93.0 F)
1977
35.0 C (95.0 F)
1978
33.9 C (93.0 F)
1979
31.7 C (89.1 F)
1980
35.6 C (96.1 F)
1981
33.3 C (91.9 F)
1982
32.2 C (90.0 F)
1983
36.7 C (98.1 F)
1984
33.3 C (91.9 F)
Coldest night (TNn)
The coldest night of the year at Ephrata, 1899 to 1984. The record is -29.4 C (-20.9 F) in 1912, marked on the chart; the median year is -17.8 C (0.0 F).
Coldest night (TNn) at Ephrata by year
Year
Coldest night (TNn)
1899
-15.6 C (3.9 F)
1900
-17.8 C (0.0 F)
1901
-15.0 C (5.0 F)
1902
-16.7 C (1.9 F)
1903
-20.6 C (-5.1 F)
1904
-26.1 C (-15.0 F)
1905
-21.1 C (-6.0 F)
1906
-17.8 C (0.0 F)
1907
-22.2 C (-8.0 F)
1908
-20.6 C (-5.1 F)
1909
-18.3 C (-0.9 F)
1910
-19.4 C (-2.9 F)
1911
-17.2 C (1.0 F)
1912
-29.4 C (-20.9 F)
1913
-14.4 C (6.1 F)
1914
-21.7 C (-7.1 F)
1915
-13.3 C (8.1 F)
1916
-18.9 C (-2.0 F)
1917
-22.2 C (-8.0 F)
1918
-22.8 C (-9.0 F)
1919
-15.0 C (5.0 F)
1920
9.4 C (48.9 F)
1921
-13.3 C (8.1 F)
1922
-18.3 C (-0.9 F)
1923
-15.0 C (5.0 F)
1924
-16.1 C (3.0 F)
1925
-25.6 C (-14.1 F)
1926
-15.6 C (3.9 F)
1927
-16.7 C (1.9 F)
1928
-20.0 C (-4.0 F)
1929
-14.4 C (6.1 F)
1930
-24.4 C (-11.9 F)
1931
-11.1 C (12.0 F)
1932
-18.3 C (-0.9 F)
1933
-18.3 C (-0.9 F)
1934
-25.6 C (-14.1 F)
1935
-25.0 C (-13.0 F)
1936
-20.6 C (-5.1 F)
1937
-11.7 C (10.9 F)
1938
-15.6 C (3.9 F)
1939
-16.7 C (1.9 F)
1940
-16.7 C (1.9 F)
1941
-11.7 C (10.9 F)
1942
-23.3 C (-9.9 F)
1943
-17.2 C (1.0 F)
1944
-16.7 C (1.9 F)
1945
-18.3 C (-0.9 F)
1946
-13.3 C (8.1 F)
1947
-15.6 C (3.9 F)
1948
-18.3 C (-0.9 F)
1949
-15.0 C (5.0 F)
1950
-16.1 C (3.0 F)
1951
-17.8 C (0.0 F)
1952
-13.9 C (7.0 F)
1953
-12.2 C (10.0 F)
1954
-18.3 C (-0.9 F)
1955
-20.6 C (-5.1 F)
1956
-11.1 C (12.0 F)
1957
-18.3 C (-0.9 F)
1958
-17.8 C (0.0 F)
1959
-16.1 C (3.0 F)
1960
-17.8 C (0.0 F)
1961
-22.8 C (-9.0 F)
1962
-20.6 C (-5.1 F)
1963
-21.1 C (-6.0 F)
1964
-14.4 C (6.1 F)
1965
-18.3 C (-0.9 F)
1966
-18.3 C (-0.9 F)
1967
-17.8 C (0.0 F)
1968
-18.9 C (-2.0 F)
1969
-15.0 C (5.0 F)
1970
-19.4 C (-2.9 F)
1971
-15.6 C (3.9 F)
1972
-17.8 C (0.0 F)
1973
-15.6 C (3.9 F)
1974
-12.8 C (9.0 F)
1975
-14.4 C (6.1 F)
1976
-16.1 C (3.0 F)
1977
-21.7 C (-7.1 F)
1978
-16.7 C (1.9 F)
1979
-21.1 C (-6.0 F)
1980
-19.4 C (-2.9 F)
1981
-19.4 C (-2.9 F)
1982
-24.4 C (-11.9 F)
1983
-20.6 C (-5.1 F)
1984
-22.8 C (-9.0 F)
Wettest day (Rx1day)
The wettest day of the year at Ephrata, 1899 to 1984. The record is 147.1 mm (5.8 in) in 1972, marked on the chart; the median year is 65.9 mm (2.6 in).
Wettest day (Rx1day) at Ephrata by year
Year
Wettest day (Rx1day)
1899
54.6 mm (2.1 in)
1900
111.0 mm (4.4 in)
1901
64.5 mm (2.5 in)
1902
114.8 mm (4.5 in)
1903
67.6 mm (2.7 in)
1904
63.8 mm (2.5 in)
1905
87.4 mm (3.4 in)
1906
86.4 mm (3.4 in)
1907
51.1 mm (2.0 in)
1908
109.0 mm (4.3 in)
1909
62.7 mm (2.5 in)
1910
69.6 mm (2.7 in)
1911
70.1 mm (2.8 in)
1912
55.6 mm (2.2 in)
1913
70.4 mm (2.8 in)
1914
37.8 mm (1.5 in)
1915
76.7 mm (3.0 in)
1916
83.6 mm (3.3 in)
1917
50.8 mm (2.0 in)
1918
58.7 mm (2.3 in)
1919
67.3 mm (2.6 in)
1920
28.7 mm (1.1 in)
1921
62.2 mm (2.4 in)
1922
54.6 mm (2.1 in)
1923
46.2 mm (1.8 in)
1924
80.0 mm (3.1 in)
1925
41.4 mm (1.6 in)
1926
78.7 mm (3.1 in)
1927
82.8 mm (3.3 in)
1928
44.7 mm (1.8 in)
1929
62.7 mm (2.5 in)
1930
41.1 mm (1.6 in)
1931
53.1 mm (2.1 in)
1932
96.0 mm (3.8 in)
1933
82.8 mm (3.3 in)
1934
67.8 mm (2.7 in)
1935
74.2 mm (2.9 in)
1936
45.7 mm (1.8 in)
1937
68.3 mm (2.7 in)
1938
90.4 mm (3.6 in)
1939
102.1 mm (4.0 in)
1940
87.1 mm (3.4 in)
1941
43.4 mm (1.7 in)
1942
115.8 mm (4.6 in)
1943
72.9 mm (2.9 in)
1944
63.5 mm (2.5 in)
1945
77.7 mm (3.1 in)
1946
86.6 mm (3.4 in)
1947
59.2 mm (2.3 in)
1948
50.0 mm (2.0 in)
1949
47.2 mm (1.9 in)
1950
95.3 mm (3.8 in)
1951
62.2 mm (2.4 in)
1952
74.9 mm (2.9 in)
1953
51.6 mm (2.0 in)
1954
56.1 mm (2.2 in)
1955
106.7 mm (4.2 in)
1956
45.7 mm (1.8 in)
1957
38.6 mm (1.5 in)
1958
95.3 mm (3.8 in)
1959
74.9 mm (2.9 in)
1960
111.8 mm (4.4 in)
1961
62.2 mm (2.4 in)
1962
48.8 mm (1.9 in)
1963
53.3 mm (2.1 in)
1964
42.7 mm (1.7 in)
1965
59.9 mm (2.4 in)
1966
78.7 mm (3.1 in)
1967
91.9 mm (3.6 in)
1968
50.8 mm (2.0 in)
1969
73.7 mm (2.9 in)
1970
58.4 mm (2.3 in)
1971
68.1 mm (2.7 in)
1972
147.1 mm (5.8 in)
1973
101.1 mm (4.0 in)
1974
42.4 mm (1.7 in)
1975
88.6 mm (3.5 in)
1976
111.8 mm (4.4 in)
1977
62.7 mm (2.5 in)
1978
63.5 mm (2.5 in)
1979
128.3 mm (5.1 in)
1980
42.2 mm (1.7 in)
1981
33.3 mm (1.3 in)
1982
56.4 mm (2.2 in)
1983
60.2 mm (2.4 in)
1984
91.4 mm (3.6 in)
Wettest five days (Rx5day)
The wettest five days of the year at Ephrata, 1899 to 1984. The record is 234.6 mm (9.2 in) in 1975, marked on the chart; the median year is 99.8 mm (3.9 in).
Wettest five days (Rx5day) at Ephrata by year
Year
Wettest five days (Rx5day)
1899
104.2 mm (4.1 in)
1900
111.5 mm (4.4 in)
1901
76.2 mm (3.0 in)
1902
114.8 mm (4.5 in)
1903
86.6 mm (3.4 in)
1904
74.1 mm (2.9 in)
1905
94.2 mm (3.7 in)
1906
93.5 mm (3.7 in)
1907
78.1 mm (3.1 in)
1908
174.6 mm (6.9 in)
1909
89.4 mm (3.5 in)
1910
96.5 mm (3.8 in)
1911
122.4 mm (4.8 in)
1912
99.5 mm (3.9 in)
1913
92.5 mm (3.6 in)
1914
68.8 mm (2.7 in)
1915
125.0 mm (4.9 in)
1916
184.5 mm (7.3 in)
1917
70.9 mm (2.8 in)
1918
83.6 mm (3.3 in)
1919
116.3 mm (4.6 in)
1920
66.5 mm (2.6 in)
1921
89.7 mm (3.5 in)
1922
66.3 mm (2.6 in)
1923
74.9 mm (2.9 in)
1924
112.8 mm (4.4 in)
1925
79.5 mm (3.1 in)
1926
151.8 mm (6.0 in)
1927
93.2 mm (3.7 in)
1928
95.8 mm (3.8 in)
1929
106.7 mm (4.2 in)
1930
53.8 mm (2.1 in)
1931
119.9 mm (4.7 in)
1932
106.7 mm (4.2 in)
1933
172.9 mm (6.8 in)
1934
97.5 mm (3.8 in)
1935
101.1 mm (4.0 in)
1936
77.2 mm (3.0 in)
1937
144.5 mm (5.7 in)
1938
128.8 mm (5.1 in)
1939
109.8 mm (4.3 in)
1940
90.9 mm (3.6 in)
1941
139.5 mm (5.5 in)
1942
166.6 mm (6.6 in)
1943
117.3 mm (4.6 in)
1944
114.8 mm (4.5 in)
1945
138.7 mm (5.5 in)
1946
87.9 mm (3.5 in)
1947
100.4 mm (4.0 in)
1948
78.2 mm (3.1 in)
1949
72.9 mm (2.9 in)
1950
106.7 mm (4.2 in)
1951
93.5 mm (3.7 in)
1952
122.1 mm (4.8 in)
1953
91.5 mm (3.6 in)
1954
70.8 mm (2.8 in)
1955
165.8 mm (6.5 in)
1956
71.8 mm (2.8 in)
1957
82.3 mm (3.2 in)
1958
220.5 mm (8.7 in)
1959
155.3 mm (6.1 in)
1960
172.5 mm (6.8 in)
1961
104.2 mm (4.1 in)
1962
80.6 mm (3.2 in)
1963
94.0 mm (3.7 in)
1964
82.3 mm (3.2 in)
1965
59.9 mm (2.4 in)
1966
89.6 mm (3.5 in)
1967
184.9 mm (7.3 in)
1968
71.1 mm (2.8 in)
1969
81.3 mm (3.2 in)
1970
105.4 mm (4.1 in)
1971
148.6 mm (5.9 in)
1972
194.1 mm (7.6 in)
1973
103.9 mm (4.1 in)
1974
61.8 mm (2.4 in)
1975
234.6 mm (9.2 in)
1976
132.6 mm (5.2 in)
1977
100.1 mm (3.9 in)
1978
88.6 mm (3.5 in)
1979
134.4 mm (5.3 in)
1980
74.5 mm (2.9 in)
1981
63.4 mm (2.5 in)
1982
128.6 mm (5.1 in)
1983
104.2 mm (4.1 in)
1984
114.0 mm (4.5 in)
Longest dry spell (CDD)
The longest dry spell of the year at Ephrata, 1899 to 1984. The record is 36 days in 1924, marked on the chart; the median year is 18 days.
Longest dry spell (CDD) at Ephrata by year
Year
Longest dry spell (CDD)
1899
11 days
1900
19 days
1901
27 days
1902
21 days
1903
32 days
1904
20 days
1905
21 days
1906
17 days
1907
18 days
1908
22 days
1909
25 days
1910
32 days
1911
26 days
1912
14 days
1913
14 days
1914
28 days
1915
26 days
1916
17 days
1917
21 days
1918
29 days
1919
13 days
1920
7 days
1921
19 days
1922
24 days
1923
21 days
1924
36 days
1925
16 days
1926
15 days
1927
17 days
1928
11 days
1929
17 days
1930
27 days
1931
18 days
1932
21 days
1933
19 days
1934
16 days
1935
18 days
1936
15 days
1937
16 days
1938
13 days
1939
26 days
1940
16 days
1941
22 days
1942
17 days
1943
27 days
1944
18 days
1945
15 days
1946
21 days
1947
35 days
1948
11 days
1949
19 days
1950
16 days
1951
14 days
1952
16 days
1953
18 days
1954
17 days
1955
22 days
1956
14 days
1957
15 days
1958
19 days
1959
13 days
1960
13 days
1961
18 days
1962
20 days
1963
31 days
1964
27 days
1965
15 days
1966
19 days
1967
17 days
1968
27 days
1969
16 days
1970
17 days
1971
20 days
1972
15 days
1973
17 days
1974
14 days
1975
14 days
1976
23 days
1977
18 days
1978
19 days
1979
10 days
1980
24 days
1981
18 days
1982
16 days
1983
16 days
1984
17 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
73 years with a frost
Across 73 years with a frost, the median last spring frost at Ephrata falls on 22 April and the median first autumn frost on 19 October, which leaves a median of 180 days between them.
In 1950 to 1983 the median growing season was 187 days. That is 12 days more than in 1900 to 1935.
Fitted over all years, the growing season changes by +2.2 days per decade at this station.
Frost dates and growing season at Ephrata
Measure
Median, all years
Earliest period (1900 to 1935)
Recent period (1950 to 1983)
Recent against earliest
Fitted trend
Last spring frost
22 April
26 April
16 April
10 days earlier
-1.5 days per decade
First autumn frost
19 October
19 October
21 October
2 days later
+0.7 days per decade
Growing days
180 days
175 days
187 days
12 days more
+2.2 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
78 years, 1900 to 1983
A day with at least 67.8 mm (2.7 in) of rain is expected about once in 2 years. A day with at least 146.4 mm (5.8 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
67.8 mm (2.7 in)
5 years
89.5 mm (3.5 in)
10 years
103.6 mm (4.1 in)
25 years
121.1 mm (4.8 in)
50 years
133.9 mm (5.3 in)
100 years
146.4 mm (5.8 in)
Longer than the 78 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, 78 years of values from 1900 to 1983.
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: 147.1 mm (5.8 in) in 1972; 128.3 mm (5.1 in) in 1979; 115.8 mm (4.6 in) in 1942.
Station Changes
No change in the annual mean temperature of this station was found against its neighbours.
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 2026-10-16 (16 October 2026). Records are computed by this site and are not official.