Record envelope, standing records and threshold days for East Park Rsvr (USC00042640), California, United States, with 94 years of record.
Key Facts for East Park Rsvr
East Park Rsvr (USC00042640) is a weather station in California, United States at 39.36 latitude and -122.52 longitude, 367 m (1,205 ft) above sea level.
The station reports from 1910 to 2003, 94 years of record.
1,464 records set at East Park Rsvr still stand.
Records are tracked for tmax, tmin, prcp, snow, snwd: an element needs 30 years of data to be eligible.
East Park Rsvr tied a daily record low maximum temperature of 24.4 C (75.9 F) on 23 August 2003.
About the Station
Location: California, United States, 39.36 latitude, -122.52 longitude.
Elevation: 367 m (1,205 ft).
Period of record: 1910 to 2003, 94 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 East Park Rsvr. 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 East Park Rsvr, with 2026 drawn through them
Month
Highest record high
Lowest record low
2026 highest maximum
2026 lowest minimum
Jan
26.7 C (80.1 F)
-12.2 C (10.0 F)
n/a
n/a
Feb
27.2 C (81.0 F)
-8.9 C (16.0 F)
n/a
n/a
Mar
33.3 C (91.9 F)
-6.7 C (19.9 F)
n/a
n/a
Apr
35.0 C (95.0 F)
-6.7 C (19.9 F)
n/a
n/a
May
40.0 C (104.0 F)
-3.3 C (26.1 F)
n/a
n/a
Jun
44.4 C (111.9 F)
-0.6 C (30.9 F)
n/a
n/a
Jul
46.1 C (115.0 F)
4.4 C (39.9 F)
n/a
n/a
Aug
45.6 C (114.1 F)
5.0 C (41.0 F)
n/a
n/a
Sep
43.3 C (109.9 F)
1.7 C (35.1 F)
n/a
n/a
Oct
38.9 C (102.0 F)
-4.4 C (24.1 F)
n/a
n/a
Nov
31.7 C (89.1 F)
-8.3 C (17.1 F)
n/a
n/a
Dec
26.7 C (80.1 F)
-16.1 C (3.0 F)
n/a
n/a
Which Years Hold Standing Records
1,464 standing records
Year with most
1,464 records at East Park Rsvr still stand. 1917 holds the most, with 39.
Standing records at East Park Rsvr by the year they were set
Year set
Standing records
1910
10
1911
27
1912
20
1913
33
1914
12
1915
10
1916
28
1917
39
1918
19
1919
22
1920
38
1921
9
1922
23
1923
15
1924
35
1925
16
1926
13
1927
13
1928
5
1929
27
1930
24
1931
22
1932
28
1933
22
1934
22
1935
13
1936
18
1937
21
1938
9
1939
16
1940
14
1941
9
1942
11
1943
17
1944
7
1945
22
1946
11
1947
15
1948
19
1949
12
1950
24
1951
11
1952
24
1953
16
1954
10
1955
20
1956
11
1957
9
1958
12
1959
14
1960
14
1961
22
1962
14
1963
14
1964
20
1965
8
1966
12
1967
22
1968
12
1969
7
1970
10
1971
18
1972
22
1973
10
1974
17
1975
20
1976
17
1977
13
1978
17
1979
5
1980
8
1981
5
1982
14
1983
10
1984
12
1985
9
1986
7
1987
12
1988
22
1989
16
1990
15
1991
13
1992
18
1993
10
1994
10
1995
10
1996
18
1997
6
1998
16
1999
10
2000
12
2001
5
2002
9
2003
6
All-Time Record Progression
4 new records
4 all-time records were set at East Park Rsvr between 5 August 1961 and 20 July 1988. Each dot is a new record.
When East Park Rsvr set new all-time records
Date
Kind
Detail
1961-08-05
Record high minimum temperature
Record high minimum temperature 25.6 C (78.1 F)
1981-08-08
Record high maximum temperature
Record high maximum temperature 45.0 C (113.0 F)
1982-01-04
Record daily precipitation
Record daily precipitation 114.3 mm (4.5 in)
1988-07-20
Record high maximum temperature
Record high maximum temperature 46.1 C (115.0 F)
Wettest Day of Each Month
Jan: 114.3 mm (4.5 in)
The wettest day on record for each calendar month at East Park Rsvr. The most was 114.3 mm (4.5 in) on 4 January 1982.
Record daily precipitation for each month at East Park Rsvr
Month
Record daily precipitation (mm)
Date
Jan
114.3 mm (4.5 in)
4 January 1982
Feb
92.7 mm (3.6 in)
3 February 1998
Mar
77.0 mm (3.0 in)
8 March 1995
Apr
44.5 mm (1.8 in)
26 April 1944
May
45.2 mm (1.8 in)
12 May 1925
Jun
29.0 mm (1.1 in)
2 June 1967
Jul
13.5 mm (0.5 in)
8 July 1974
Aug
21.3 mm (0.8 in)
21 August 1968
Sep
53.1 mm (2.1 in)
16 September 1989
Oct
75.4 mm (3.0 in)
10 October 1957
Nov
64.5 mm (2.5 in)
28 November 1970
Dec
85.9 mm (3.4 in)
12 December 1995
Period of Record Coverage
1910 to 2003
Complete yearUnder 90 percent of days
94 years of record at East Park Rsvr, 1910 to 2003. 4 years have data for under 90 percent of days and are left out of rankings: 1910, 1937, 1938, 2003.
Cooler than the station meanWarmer than the station mean
One stripe for each of 81 complete years at East Park Rsvr, 1911 to 2002. Blue stripes are years cooler than the station's own mean of 14.8 C (58.6 F); red stripes are warmer. The coolest year was 1982, at 13.2 C (55.7 F), and the warmest was 1936, at 15.9 C (60.7 F). The strongest colour marks a difference of 1.7 C (3.1 F).
Annual mean temperature at East Park Rsvr as warming stripes, 1911 to 2002
Year
Annual mean temperature
Difference from the station mean
1911
14.7 C
-0.09 C
1912
14.3 C
-0.49 C
1913
14.8 C
-0.03 C
1915
14.9 C
+0.05 C
1916
14.3 C
-0.52 C
1917
15.0 C
+0.21 C
1918
15.0 C
+0.15 C
1919
14.8 C
+0.04 C
1920
14.5 C
-0.34 C
1921
14.8 C
-0.01 C
1922
13.9 C
-0.92 C
1923
13.9 C
-0.87 C
1924
14.4 C
-0.40 C
1925
14.5 C
-0.34 C
1928
15.2 C
+0.39 C
1929
15.0 C
+0.18 C
1930
14.6 C
-0.23 C
1931
14.8 C
+0.04 C
1933
14.9 C
+0.10 C
1934
15.8 C
+0.99 C
1935
14.9 C
+0.07 C
1936
15.9 C
+1.14 C
1940
15.8 C
+1.01 C
1941
15.2 C
+0.41 C
1942
14.7 C
-0.12 C
1943
15.3 C
+0.51 C
1944
15.0 C
+0.17 C
1945
15.4 C
+0.58 C
1946
14.5 C
-0.31 C
1947
15.1 C
+0.33 C
1948
13.9 C
-0.90 C
1950
15.6 C
+0.78 C
1951
15.2 C
+0.44 C
1952
14.8 C
-0.03 C
1953
15.0 C
+0.17 C
1954
14.7 C
-0.15 C
1955
14.1 C
-0.68 C
1956
14.6 C
-0.16 C
1957
14.5 C
-0.30 C
1958
15.7 C
+0.87 C
1959
15.8 C
+0.98 C
1960
15.2 C
+0.43 C
1961
15.1 C
+0.26 C
1962
14.7 C
-0.09 C
1963
14.0 C
-0.76 C
1964
14.3 C
-0.47 C
1965
14.3 C
-0.52 C
1966
15.1 C
+0.30 C
1967
15.0 C
+0.20 C
1968
14.7 C
-0.13 C
1969
14.6 C
-0.16 C
1970
15.0 C
+0.16 C
1971
14.0 C
-0.76 C
1972
14.3 C
-0.48 C
1973
14.8 C
-0.05 C
1974
14.4 C
-0.38 C
1975
14.1 C
-0.72 C
1976
14.9 C
+0.06 C
1977
14.7 C
-0.12 C
1978
14.6 C
-0.17 C
1979
14.4 C
-0.44 C
1980
14.6 C
-0.22 C
1981
15.6 C
+0.79 C
1982
13.2 C
-1.63 C
1986
15.0 C
+0.23 C
1987
15.2 C
+0.42 C
1988
15.4 C
+0.57 C
1989
14.3 C
-0.49 C
1990
15.1 C
+0.27 C
1991
15.1 C
+0.31 C
1992
15.9 C
+1.12 C
1993
14.6 C
-0.17 C
1994
14.5 C
-0.29 C
1995
15.1 C
+0.25 C
1996
15.3 C
+0.47 C
1997
15.1 C
+0.28 C
1998
13.9 C
-0.92 C
1999
14.4 C
-0.37 C
2000
14.3 C
-0.51 C
2001
15.2 C
+0.39 C
2002
15.1 C
+0.29 C
The fitted trend in annual mean temperature here over 1911 to 2002 is 0.00 C (-0.04 to 0.05) per decade. The interval includes zero, so the trend is not clearly different from zero. In Fahrenheit: 0.00 F (-0.08 to 0.08) per decade. The slope is a straight line fitted to 81 complete years; the brackets give its 95 percent interval.
Fitted temperature trends per decade at East Park Rsvr
Measure
Per decade (C)
Per decade (F)
Period
Complete years
Reading
Annual mean temperature
0.00 C (-0.04 to 0.05) per decade
0.00 F (-0.08 to 0.08) per decade
1911 to 2002
81
Not clearly different from zero
Mean daily maximum
-0.09 C (-0.15 to -0.03) per decade
-0.2 F (-0.3 to -0.1) per decade
1911 to 2002
81
Fall
Mean daily minimum
0.10 C (0.04 to 0.15) per decade
0.2 F (0.1 to 0.3) per decade
1911 to 2002
81
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
1910 to 2003
Yearly extremes at East Park Rsvr: the record and the median year
Measure
Record
Year of the record
Median year
Years with a value
Hottest day (TXx)
46.1 C (115.0 F)
1988
42.2 C (108.0 F)
94
Coldest night (TNn)
-16.1 C (3.0 F)
1932
-7.2 C (19.0 F)
94
Wettest day (Rx1day)
114.3 mm (4.5 in)
1982
47.7 mm (1.9 in)
94
Wettest five days (Rx5day)
213.3 mm (8.4 in)
1995
90.4 mm (3.6 in)
94
Longest dry spell (CDD)
181 days
1929
102 days
94
Hottest day (TXx)
The hottest day of the year at East Park Rsvr, 1910 to 2003. The record is 46.1 C (115.0 F) in 1988, marked on the chart; the median year is 42.2 C (108.0 F).
Hottest day (TXx) at East Park Rsvr by year
Year
Hottest day (TXx)
1910
31.1 C (88.0 F)
1911
43.9 C (111.0 F)
1912
43.3 C (109.9 F)
1913
42.8 C (109.0 F)
1914
41.7 C (107.1 F)
1915
42.8 C (109.0 F)
1916
42.8 C (109.0 F)
1917
43.9 C (111.0 F)
1918
43.3 C (109.9 F)
1919
43.3 C (109.9 F)
1920
43.9 C (111.0 F)
1921
41.1 C (106.0 F)
1922
44.4 C (111.9 F)
1923
44.4 C (111.9 F)
1924
41.7 C (107.1 F)
1925
44.4 C (111.9 F)
1926
43.3 C (109.9 F)
1927
41.7 C (107.1 F)
1928
42.2 C (108.0 F)
1929
43.9 C (111.0 F)
1930
41.7 C (107.1 F)
1931
43.9 C (111.0 F)
1932
42.2 C (108.0 F)
1933
44.4 C (111.9 F)
1934
44.4 C (111.9 F)
1935
43.9 C (111.0 F)
1936
42.2 C (108.0 F)
1937
42.2 C (108.0 F)
1938
44.4 C (111.9 F)
1939
42.2 C (108.0 F)
1940
40.6 C (105.1 F)
1941
41.1 C (106.0 F)
1942
43.3 C (109.9 F)
1943
42.2 C (108.0 F)
1944
42.2 C (108.0 F)
1945
41.7 C (107.1 F)
1946
42.2 C (108.0 F)
1947
38.9 C (102.0 F)
1948
41.1 C (106.0 F)
1949
38.9 C (102.0 F)
1950
43.9 C (111.0 F)
1951
41.1 C (106.0 F)
1952
42.2 C (108.0 F)
1953
41.1 C (106.0 F)
1954
40.0 C (104.0 F)
1955
43.3 C (109.9 F)
1956
41.7 C (107.1 F)
1957
40.6 C (105.1 F)
1958
40.0 C (104.0 F)
1959
42.2 C (108.0 F)
1960
42.2 C (108.0 F)
1961
43.9 C (111.0 F)
1962
40.0 C (104.0 F)
1963
38.9 C (102.0 F)
1964
40.6 C (105.1 F)
1965
39.4 C (102.9 F)
1966
41.1 C (106.0 F)
1967
40.6 C (105.1 F)
1968
40.6 C (105.1 F)
1969
40.6 C (105.1 F)
1970
40.6 C (105.1 F)
1971
42.8 C (109.0 F)
1972
44.4 C (111.9 F)
1973
40.6 C (105.1 F)
1974
40.6 C (105.1 F)
1975
43.3 C (109.9 F)
1976
40.0 C (104.0 F)
1977
41.7 C (107.1 F)
1978
44.4 C (111.9 F)
1979
41.1 C (106.0 F)
1980
42.8 C (109.0 F)
1981
45.0 C (113.0 F)
1982
39.4 C (102.9 F)
1983
40.6 C (105.1 F)
1984
42.2 C (108.0 F)
1985
40.6 C (105.1 F)
1986
40.0 C (104.0 F)
1987
41.1 C (106.0 F)
1988
46.1 C (115.0 F)
1989
40.0 C (104.0 F)
1990
45.6 C (114.1 F)
1991
43.3 C (109.9 F)
1992
40.6 C (105.1 F)
1993
41.7 C (107.1 F)
1994
39.4 C (102.9 F)
1995
40.0 C (104.0 F)
1996
42.2 C (108.0 F)
1997
40.6 C (105.1 F)
1998
42.8 C (109.0 F)
1999
42.2 C (108.0 F)
2000
40.6 C (105.1 F)
2001
40.6 C (105.1 F)
2002
42.8 C (109.0 F)
2003
46.1 C (115.0 F)
Coldest night (TNn)
The coldest night of the year at East Park Rsvr, 1910 to 2003. The record is -16.1 C (3.0 F) in 1932, marked on the chart; the median year is -7.2 C (19.0 F).
Coldest night (TNn) at East Park Rsvr by year
Year
Coldest night (TNn)
1910
-2.8 C (27.0 F)
1911
-9.4 C (15.1 F)
1912
-7.8 C (18.0 F)
1913
-8.3 C (17.1 F)
1914
-7.2 C (19.0 F)
1915
-8.3 C (17.1 F)
1916
-12.2 C (10.0 F)
1917
-8.9 C (16.0 F)
1918
-6.1 C (21.0 F)
1919
-8.9 C (16.0 F)
1920
-6.7 C (19.9 F)
1921
-7.8 C (18.0 F)
1922
-9.4 C (15.1 F)
1923
-8.3 C (17.1 F)
1924
-12.2 C (10.0 F)
1925
-5.0 C (23.0 F)
1926
-7.2 C (19.0 F)
1927
-7.2 C (19.0 F)
1928
-8.3 C (17.1 F)
1929
-8.3 C (17.1 F)
1930
-11.1 C (12.0 F)
1931
-13.3 C (8.1 F)
1932
-16.1 C (3.0 F)
1933
-10.6 C (12.9 F)
1934
-3.9 C (25.0 F)
1935
-6.7 C (19.9 F)
1936
-7.2 C (19.0 F)
1937
-11.7 C (10.9 F)
1938
-7.2 C (19.0 F)
1939
-6.7 C (19.9 F)
1940
-9.4 C (15.1 F)
1941
-5.6 C (21.9 F)
1942
-7.2 C (19.0 F)
1943
-8.3 C (17.1 F)
1944
-5.6 C (21.9 F)
1945
-7.8 C (18.0 F)
1946
-7.2 C (19.0 F)
1947
-8.3 C (17.1 F)
1948
-10.0 C (14.0 F)
1949
-10.0 C (14.0 F)
1950
-8.3 C (17.1 F)
1951
-4.4 C (24.1 F)
1952
-6.7 C (19.9 F)
1953
-3.9 C (25.0 F)
1954
-6.7 C (19.9 F)
1955
-5.6 C (21.9 F)
1956
-8.3 C (17.1 F)
1957
-7.8 C (18.0 F)
1958
-5.6 C (21.9 F)
1959
-7.2 C (19.0 F)
1960
-8.3 C (17.1 F)
1961
-6.7 C (19.9 F)
1962
-7.2 C (19.0 F)
1963
-7.2 C (19.0 F)
1964
-6.1 C (21.0 F)
1965
-7.8 C (18.0 F)
1966
-6.1 C (21.0 F)
1967
-6.7 C (19.9 F)
1968
-9.4 C (15.1 F)
1969
-6.1 C (21.0 F)
1970
-6.7 C (19.9 F)
1971
-7.8 C (18.0 F)
1972
-11.1 C (12.0 F)
1973
-7.2 C (19.0 F)
1974
-12.2 C (10.0 F)
1975
-8.3 C (17.1 F)
1976
-7.8 C (18.0 F)
1977
-8.3 C (17.1 F)
1978
-8.9 C (16.0 F)
1979
-7.8 C (18.0 F)
1980
-7.2 C (19.0 F)
1981
-3.3 C (26.1 F)
1982
-6.1 C (21.0 F)
1983
-5.6 C (21.9 F)
1984
-5.0 C (23.0 F)
1985
-6.1 C (21.0 F)
1986
-5.6 C (21.9 F)
1987
-7.2 C (19.0 F)
1988
-7.8 C (18.0 F)
1989
-8.9 C (16.0 F)
1990
-11.1 C (12.0 F)
1991
-10.0 C (14.0 F)
1992
-6.7 C (19.9 F)
1993
-7.8 C (18.0 F)
1994
-7.8 C (18.0 F)
1995
-3.9 C (25.0 F)
1996
-6.7 C (19.9 F)
1997
-8.3 C (17.1 F)
1998
-10.6 C (12.9 F)
1999
-6.1 C (21.0 F)
2000
-6.7 C (19.9 F)
2001
-5.6 C (21.9 F)
2002
-6.7 C (19.9 F)
2003
-5.0 C (23.0 F)
Wettest day (Rx1day)
The wettest day of the year at East Park Rsvr, 1910 to 2003. The record is 114.3 mm (4.5 in) in 1982, marked on the chart; the median year is 47.7 mm (1.9 in).
Wettest day (Rx1day) at East Park Rsvr by year
Year
Wettest day (Rx1day)
1910
18.0 mm (0.7 in)
1911
57.9 mm (2.3 in)
1912
38.6 mm (1.5 in)
1913
72.1 mm (2.8 in)
1914
38.9 mm (1.5 in)
1915
75.7 mm (3.0 in)
1916
33.3 mm (1.3 in)
1917
47.5 mm (1.9 in)
1918
49.5 mm (1.9 in)
1919
27.9 mm (1.1 in)
1920
57.7 mm (2.3 in)
1921
43.4 mm (1.7 in)
1922
38.4 mm (1.5 in)
1923
38.1 mm (1.5 in)
1924
52.1 mm (2.1 in)
1925
67.8 mm (2.7 in)
1926
62.5 mm (2.5 in)
1927
49.5 mm (1.9 in)
1928
30.5 mm (1.2 in)
1929
29.2 mm (1.1 in)
1930
55.1 mm (2.2 in)
1931
38.1 mm (1.5 in)
1932
30.7 mm (1.2 in)
1933
48.3 mm (1.9 in)
1934
35.6 mm (1.4 in)
1935
43.7 mm (1.7 in)
1936
37.3 mm (1.5 in)
1937
56.9 mm (2.2 in)
1938
41.1 mm (1.6 in)
1939
24.1 mm (0.9 in)
1940
57.2 mm (2.3 in)
1941
46.5 mm (1.8 in)
1942
41.1 mm (1.6 in)
1943
54.1 mm (2.1 in)
1944
44.5 mm (1.8 in)
1945
70.1 mm (2.8 in)
1946
30.5 mm (1.2 in)
1947
26.7 mm (1.1 in)
1948
61.0 mm (2.4 in)
1949
57.2 mm (2.3 in)
1950
71.6 mm (2.8 in)
1951
43.2 mm (1.7 in)
1952
50.8 mm (2.0 in)
1953
49.8 mm (2.0 in)
1954
66.0 mm (2.6 in)
1955
67.3 mm (2.6 in)
1956
41.9 mm (1.6 in)
1957
75.4 mm (3.0 in)
1958
50.8 mm (2.0 in)
1959
74.2 mm (2.9 in)
1960
54.6 mm (2.1 in)
1961
47.0 mm (1.9 in)
1962
67.3 mm (2.6 in)
1963
46.2 mm (1.8 in)
1964
46.7 mm (1.8 in)
1965
47.5 mm (1.9 in)
1966
46.5 mm (1.8 in)
1967
47.0 mm (1.9 in)
1968
48.8 mm (1.9 in)
1969
49.0 mm (1.9 in)
1970
64.5 mm (2.5 in)
1971
50.8 mm (2.0 in)
1972
55.9 mm (2.2 in)
1973
57.2 mm (2.3 in)
1974
39.1 mm (1.5 in)
1975
43.2 mm (1.7 in)
1976
16.8 mm (0.7 in)
1977
38.1 mm (1.5 in)
1978
44.5 mm (1.8 in)
1979
59.4 mm (2.3 in)
1980
47.8 mm (1.9 in)
1981
43.2 mm (1.7 in)
1982
114.3 mm (4.5 in)
1983
76.2 mm (3.0 in)
1984
38.1 mm (1.5 in)
1985
46.7 mm (1.8 in)
1986
75.7 mm (3.0 in)
1987
40.1 mm (1.6 in)
1988
71.1 mm (2.8 in)
1989
63.5 mm (2.5 in)
1990
48.8 mm (1.9 in)
1991
40.6 mm (1.6 in)
1992
54.9 mm (2.2 in)
1993
45.7 mm (1.8 in)
1994
50.8 mm (2.0 in)
1995
91.4 mm (3.6 in)
1996
38.1 mm (1.5 in)
1997
57.2 mm (2.3 in)
1998
92.7 mm (3.6 in)
1999
37.3 mm (1.5 in)
2000
30.0 mm (1.2 in)
2001
35.6 mm (1.4 in)
2002
51.3 mm (2.0 in)
2003
41.7 mm (1.6 in)
Wettest five days (Rx5day)
The wettest five days of the year at East Park Rsvr, 1910 to 2003. The record is 213.3 mm (8.4 in) in 1995, marked on the chart; the median year is 90.4 mm (3.6 in).
Wettest five days (Rx5day) at East Park Rsvr by year
Year
Wettest five days (Rx5day)
1910
20.0 mm (0.8 in)
1911
150.3 mm (5.9 in)
1912
50.6 mm (2.0 in)
1913
125.5 mm (4.9 in)
1914
97.6 mm (3.8 in)
1915
147.1 mm (5.8 in)
1916
80.5 mm (3.2 in)
1917
83.4 mm (3.3 in)
1918
68.1 mm (2.7 in)
1919
57.2 mm (2.3 in)
1920
84.0 mm (3.3 in)
1921
90.3 mm (3.6 in)
1922
96.9 mm (3.8 in)
1923
65.7 mm (2.6 in)
1924
64.2 mm (2.5 in)
1925
101.0 mm (4.0 in)
1926
124.2 mm (4.9 in)
1927
119.1 mm (4.7 in)
1928
64.6 mm (2.5 in)
1929
62.6 mm (2.5 in)
1930
81.8 mm (3.2 in)
1931
91.7 mm (3.6 in)
1932
49.1 mm (1.9 in)
1933
89.0 mm (3.5 in)
1934
115.7 mm (4.6 in)
1935
68.4 mm (2.7 in)
1936
75.4 mm (3.0 in)
1937
113.5 mm (4.5 in)
1938
82.1 mm (3.2 in)
1939
27.7 mm (1.1 in)
1940
148.3 mm (5.8 in)
1941
119.4 mm (4.7 in)
1942
94.4 mm (3.7 in)
1943
133.9 mm (5.3 in)
1944
76.2 mm (3.0 in)
1945
117.7 mm (4.6 in)
1946
62.8 mm (2.5 in)
1947
69.1 mm (2.7 in)
1948
111.5 mm (4.4 in)
1949
131.5 mm (5.2 in)
1950
98.0 mm (3.9 in)
1951
77.4 mm (3.0 in)
1952
88.9 mm (3.5 in)
1953
63.3 mm (2.5 in)
1954
90.4 mm (3.6 in)
1955
154.7 mm (6.1 in)
1956
89.4 mm (3.5 in)
1957
119.4 mm (4.7 in)
1958
84.5 mm (3.3 in)
1959
143.5 mm (5.6 in)
1960
80.8 mm (3.2 in)
1961
101.7 mm (4.0 in)
1962
139.1 mm (5.5 in)
1963
122.7 mm (4.8 in)
1964
89.7 mm (3.5 in)
1965
96.0 mm (3.8 in)
1966
70.6 mm (2.8 in)
1967
95.5 mm (3.8 in)
1968
104.4 mm (4.1 in)
1969
92.2 mm (3.6 in)
1970
133.5 mm (5.3 in)
1971
75.2 mm (3.0 in)
1972
94.2 mm (3.7 in)
1973
108.3 mm (4.3 in)
1974
81.0 mm (3.2 in)
1975
76.0 mm (3.0 in)
1976
22.1 mm (0.9 in)
1977
57.4 mm (2.3 in)
1978
156.6 mm (6.2 in)
1979
105.2 mm (4.1 in)
1980
166.2 mm (6.5 in)
1981
79.3 mm (3.1 in)
1982
128.0 mm (5.0 in)
1983
147.2 mm (5.8 in)
1984
71.1 mm (2.8 in)
1985
54.1 mm (2.1 in)
1986
197.1 mm (7.8 in)
1987
76.0 mm (3.0 in)
1988
119.8 mm (4.7 in)
1989
75.0 mm (3.0 in)
1990
82.8 mm (3.3 in)
1991
111.7 mm (4.4 in)
1992
107.5 mm (4.2 in)
1993
98.6 mm (3.9 in)
1994
69.8 mm (2.7 in)
1995
213.3 mm (8.4 in)
1996
76.5 mm (3.0 in)
1997
129.3 mm (5.1 in)
1998
188.0 mm (7.4 in)
1999
47.3 mm (1.9 in)
2000
62.2 mm (2.4 in)
2001
87.4 mm (3.4 in)
2002
147.8 mm (5.8 in)
2003
63.9 mm (2.5 in)
Longest dry spell (CDD)
The longest dry spell of the year at East Park Rsvr, 1910 to 2003. The record is 181 days in 1929, marked on the chart; the median year is 102 days.
Longest dry spell (CDD) at East Park Rsvr by year
Year
Longest dry spell (CDD)
1910
21 days
1911
109 days
1912
73 days
1913
126 days
1914
146 days
1915
38 days
1916
64 days
1917
31 days
1918
28 days
1919
29 days
1920
24 days
1921
40 days
1922
62 days
1923
52 days
1924
29 days
1925
67 days
1926
55 days
1927
140 days
1928
167 days
1929
181 days
1930
102 days
1931
84 days
1932
159 days
1933
171 days
1934
121 days
1935
83 days
1936
87 days
1937
69 days
1938
122 days
1939
102 days
1940
144 days
1941
62 days
1942
105 days
1943
108 days
1944
119 days
1945
103 days
1946
67 days
1947
120 days
1948
76 days
1949
161 days
1950
97 days
1951
148 days
1952
110 days
1953
84 days
1954
75 days
1955
134 days
1956
94 days
1957
120 days
1958
58 days
1959
115 days
1960
134 days
1961
57 days
1962
104 days
1963
86 days
1964
138 days
1965
87 days
1966
112 days
1967
73 days
1968
74 days
1969
117 days
1970
110 days
1971
93 days
1972
107 days
1973
121 days
1974
111 days
1975
79 days
1976
57 days
1977
78 days
1978
127 days
1979
116 days
1980
92 days
1981
121 days
1982
65 days
1983
81 days
1984
107 days
1985
121 days
1986
133 days
1987
108 days
1988
155 days
1989
101 days
1990
71 days
1991
118 days
1992
94 days
1993
125 days
1994
139 days
1995
141 days
1996
77 days
1997
76 days
1998
106 days
1999
81 days
2000
84 days
2001
88 days
2002
170 days
2003
86 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
81 years with a frost
Across 81 years with a frost, the median last spring frost at East Park Rsvr falls on 19 April and the median first autumn frost on 4 November, which leaves a median of 201 days between them.
In 1970 to 2002 the median growing season was 198 days. The two periods have the same number of growing days.
Fitted over all years, the growing season changes by +2.1 days per decade at this station.
Frost dates and growing season at East Park Rsvr
Measure
Median, all years
Earliest period (1911 to 1947)
Recent period (1970 to 2002)
Recent against earliest
Fitted trend
Last spring frost
19 April
16 April
18 April
2 days later
-0.8 days per decade
First autumn frost
4 November
29 October
3 November
5 days later
+1.3 days per decade
Growing days
201 days
198 days
198 days
no change
+2.1 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
76 years, 1911 to 2002
A day with at least 49.0 mm (1.9 in) of rain is expected about once in 2 years. A day with at least 101.3 mm (4.0 in) of rain is expected about once in 100 years.
Rainfall return levels at East Park Rsvr: the daily rain expected about once in a given number of years
Expected about once in
A day with at least
Note
2 years
49.0 mm (1.9 in)
5 years
63.2 mm (2.5 in)
10 years
72.5 mm (2.9 in)
25 years
84.2 mm (3.3 in)
50 years
92.8 mm (3.7 in)
100 years
101.3 mm (4.0 in)
Longer than the 76 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, 76 years of values from 1911 to 2002.
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: 114.3 mm (4.5 in) in 1982; 92.7 mm (3.6 in) in 1998; 91.4 mm (3.6 in) in 1995.
Station Changes
1 suspected
One change was suspected in the annual mean temperature of East Park Rsvr, at 1958. Each is measured against neighbouring stations.
Relative to 5 neighbouring stations, the station's annual mean temperature from 1958 ran 0.3 C (0.5 F) lower than in the years before (likely change).
Suspected changes in the annual mean temperature at East Park Rsvr, against neighbouring stations
Year
Shift (C)
Shift (F)
Strength
Neighbours
1958
-0.3
-0.5
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 East Park Rsvr standing records by year: CSV or JSON. Field meanings are on the data page.
Data for East Park Rsvr 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.