Record envelope, standing records and threshold days for Parker 6 E (USC00056326), Colorado, United States, with 76 years of record.
Key Facts for Parker 6 E
Parker 6 E (USC00056326) is a weather station in Colorado, United States at 39.53 latitude and -104.66 longitude, 1,923 m (6,310 ft) above sea level.
The station reports from 1922 to 1997, 76 years of record.
1,464 records set at Parker 6 E still stand.
Records are tracked for tmax, tmin, prcp, snow, snwd: an element needs 30 years of data to be eligible.
Parker 6 E set a daily record high minimum temperature of 2.8 C (37.0 F) on 31 December 1997.
About the Station
Location: Colorado, United States, 39.53 latitude, -104.66 longitude.
Elevation: 1,923 m (6,310 ft).
Period of record: 1922 to 1997, 76 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 Parker 6 E. 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 Parker 6 E, with 2026 drawn through them
Month
Highest record high
Lowest record low
2026 highest maximum
2026 lowest minimum
Jan
22.8 C (73.0 F)
-38.9 C (-38.0 F)
n/a
n/a
Feb
22.8 C (73.0 F)
-37.2 C (-35.0 F)
n/a
n/a
Mar
26.7 C (80.1 F)
-30.6 C (-23.1 F)
n/a
n/a
Apr
29.4 C (84.9 F)
-19.4 C (-2.9 F)
n/a
n/a
May
33.3 C (91.9 F)
-8.9 C (16.0 F)
n/a
n/a
Jun
41.7 C (107.1 F)
-2.8 C (27.0 F)
n/a
n/a
Jul
38.3 C (100.9 F)
3.3 C (37.9 F)
n/a
n/a
Aug
37.8 C (100.0 F)
0.0 C (32.0 F)
n/a
n/a
Sep
35.6 C (96.1 F)
-11.7 C (10.9 F)
n/a
n/a
Oct
31.1 C (88.0 F)
-23.3 C (-9.9 F)
n/a
n/a
Nov
25.6 C (78.1 F)
-28.9 C (-20.0 F)
n/a
n/a
Dec
23.3 C (73.9 F)
-35.6 C (-32.1 F)
n/a
n/a
Which Years Hold Standing Records
1,464 standing records
Year with most
1,464 records at Parker 6 E still stand. 1989 holds the most, with 46.
Standing records at Parker 6 E by the year they were set
Year set
Standing records
1930
9
1931
31
1932
21
1933
21
1934
36
1935
18
1936
23
1937
25
1938
29
1939
34
1940
14
1941
13
1942
35
1943
23
1944
18
1945
14
1946
19
1947
28
1948
23
1949
13
1950
27
1951
21
1952
19
1953
19
1954
34
1955
17
1956
27
1957
10
1958
14
1959
23
1960
23
1961
17
1962
28
1963
16
1964
13
1965
27
1966
21
1967
25
1968
18
1969
22
1970
14
1971
26
1972
20
1973
23
1974
21
1975
13
1976
8
1977
18
1978
28
1979
17
1980
27
1981
19
1982
8
1983
29
1984
17
1985
16
1986
16
1987
23
1988
15
1989
46
1990
34
1991
18
1992
22
1993
14
1994
19
1995
31
1996
33
1997
21
All-Time Record Progression
7 new records
7 all-time records were set at Parker 6 E between 12 January 1963 and 26 October 1997. Each dot is a new record.
When Parker 6 E set new all-time records
Date
Kind
Detail
1963-01-12
Record low minimum temperature
Record low minimum temperature -38.9 C (-38.0 F)
1973-05-06
Record daily precipitation
Record daily precipitation 91.4 mm (3.6 in)
1983-12-21
Record low maximum temperature
Record low maximum temperature -22.2 C (-8.0 F)
1989-02-03
Record low maximum temperature
Record low maximum temperature -22.8 C (-9.0 F)
1990-12-21
Record low maximum temperature
Record low maximum temperature -25.6 C (-14.1 F)
1997-10-25
Record daily snowfall
Record daily snowfall 71.1 cm (28.0 in)
1997-10-26
Record snow depth
Record snow depth 91.4 cm (36.0 in)
Wettest Day of Each Month
May: 91.4 mm (3.6 in)
The wettest day on record for each calendar month at Parker 6 E. The most was 91.4 mm (3.6 in) on 6 May 1973.
Record daily precipitation for each month at Parker 6 E
Month
Record daily precipitation (mm)
Date
Jan
26.7 mm (1.1 in)
20 January 1990
Feb
19.3 mm (0.8 in)
7 February 1934
Mar
38.6 mm (1.5 in)
5 March 1983
Apr
48.3 mm (1.9 in)
27 April 1938
May
91.4 mm (3.6 in)
6 May 1973
Jun
73.7 mm (2.9 in)
5 June 1965
Jul
74.7 mm (2.9 in)
3 July 1987
Aug
76.2 mm (3.0 in)
3 August 1951
Sep
48.3 mm (1.9 in)
28 September 1936
Oct
36.8 mm (1.4 in)
18 October 1960
Nov
45.7 mm (1.8 in)
19 November 1930
Dec
41.1 mm (1.6 in)
24 December 1982
Period of Record Coverage
1930 to 1997
Complete yearUnder 90 percent of days
68 years of record at Parker 6 E, 1930 to 1997. 6 years have data for under 90 percent of days and are left out of rankings: 1930, 1940, 1944, 1945, 1995, 1996.
Cooler than the station meanWarmer than the station mean
One stripe for each of 61 complete years at Parker 6 E, 1931 to 1997. Blue stripes are years cooler than the station's own mean of 9.0 C (48.1 F); red stripes are warmer. The coolest year was 1937, at 6.7 C (44.1 F), and the warmest was 1994, at 11.0 C (51.8 F). The strongest colour marks a difference of 2.3 C (4.1 F).
Annual mean temperature at Parker 6 E as warming stripes, 1931 to 1997
Year
Annual mean temperature
Difference from the station mean
1931
8.8 C
-0.21 C
1932
8.3 C
-0.67 C
1933
9.3 C
+0.37 C
1934
10.0 C
+0.99 C
1935
8.0 C
-0.96 C
1936
7.9 C
-1.07 C
1937
6.7 C
-2.22 C
1938
7.3 C
-1.62 C
1939
7.0 C
-1.96 C
1941
7.6 C
-1.39 C
1942
7.0 C
-1.93 C
1943
8.9 C
-0.09 C
1947
8.4 C
-0.54 C
1948
8.3 C
-0.69 C
1949
8.4 C
-0.54 C
1950
9.2 C
+0.21 C
1951
7.8 C
-1.17 C
1952
9.0 C
+0.02 C
1954
10.4 C
+1.48 C
1955
9.0 C
+0.00 C
1956
9.3 C
+0.38 C
1957
8.4 C
-0.60 C
1958
9.0 C
+0.07 C
1959
8.4 C
-0.59 C
1960
7.8 C
-1.17 C
1961
7.8 C
-1.12 C
1962
9.0 C
-0.01 C
1963
9.8 C
+0.82 C
1964
8.5 C
-0.51 C
1965
8.8 C
-0.21 C
1966
9.4 C
+0.43 C
1967
8.7 C
-0.23 C
1968
8.8 C
-0.18 C
1969
8.4 C
-0.54 C
1970
8.8 C
-0.18 C
1971
8.6 C
-0.33 C
1972
8.4 C
-0.55 C
1973
8.0 C
-0.95 C
1974
9.5 C
+0.57 C
1975
9.2 C
+0.26 C
1977
10.0 C
+1.08 C
1978
9.3 C
+0.34 C
1979
8.9 C
-0.03 C
1980
10.0 C
+1.06 C
1981
10.6 C
+1.68 C
1982
9.0 C
+0.08 C
1983
8.4 C
-0.52 C
1984
8.8 C
-0.13 C
1985
8.7 C
-0.31 C
1986
10.4 C
+1.39 C
1987
9.8 C
+0.83 C
1988
9.9 C
+0.95 C
1989
9.8 C
+0.79 C
1990
10.2 C
+1.19 C
1991
10.0 C
+1.08 C
1992
9.9 C
+0.97 C
1993
9.2 C
+0.20 C
1994
11.0 C
+2.06 C
1995
10.4 C
+1.45 C
1996
10.6 C
+1.60 C
1997
9.7 C
+0.72 C
The annual mean temperature here has risen by 0.3 C (0.2 to 0.4) per decade over 1931 to 1997. In Fahrenheit: 0.6 F (0.4 to 0.7) per decade. The slope is a straight line fitted to 61 complete years; the brackets give its 95 percent interval.
Fitted temperature trends per decade at Parker 6 E
Measure
Per decade (C)
Per decade (F)
Period
Complete years
Reading
Annual mean temperature
0.3 C (0.2 to 0.4) per decade
0.6 F (0.4 to 0.7) per decade
1931 to 1997
61
Rise
Mean daily maximum
-0.1 C (-0.2 to 0.1) per decade
-0.1 F (-0.4 to 0.1) per decade
1931 to 1997
61
Not clearly different from zero
Mean daily minimum
0.7 C (0.6 to 0.8) per decade
1.2 F (1.0 to 1.5) per decade
1931 to 1997
61
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
1922 to 1997
Yearly extremes at Parker 6 E: the record and the median year
Measure
Record
Year of the record
Median year
Years with a value
Hottest day (TXx)
41.7 C (107.1 F)
1946
35.6 C (96.1 F)
68
Coldest night (TNn)
-38.9 C (-38.0 F)
1963
-27.2 C (-17.0 F)
68
Wettest day (Rx1day)
91.4 mm (3.6 in)
1973
38.1 mm (1.5 in)
73
Wettest five days (Rx5day)
126.4 mm (5.0 in)
1991
56.0 mm (2.2 in)
73
Longest dry spell (CDD)
78 days
1964
37 days
73
Hottest day (TXx)
The hottest day of the year at Parker 6 E, 1922 to 1997. The record is 41.7 C (107.1 F) in 1946, marked on the chart; the median year is 35.6 C (96.1 F).
Hottest day (TXx) at Parker 6 E by year
Year
Hottest day (TXx)
1922
n/a
1923
n/a
1924
n/a
1925
n/a
1926
n/a
1930
35.6 C (96.1 F)
1931
37.8 C (100.0 F)
1932
36.1 C (97.0 F)
1933
35.6 C (96.1 F)
1934
38.3 C (100.9 F)
1935
36.1 C (97.0 F)
1936
38.3 C (100.9 F)
1937
35.0 C (95.0 F)
1938
37.8 C (100.0 F)
1939
37.8 C (100.0 F)
1940
34.4 C (93.9 F)
1941
36.1 C (97.0 F)
1942
35.6 C (96.1 F)
1943
37.8 C (100.0 F)
1944
35.6 C (96.1 F)
1945
35.0 C (95.0 F)
1946
41.7 C (107.1 F)
1947
35.0 C (95.0 F)
1948
35.0 C (95.0 F)
1949
37.2 C (99.0 F)
1950
33.9 C (93.0 F)
1951
36.7 C (98.1 F)
1952
36.7 C (98.1 F)
1953
36.7 C (98.1 F)
1954
39.4 C (102.9 F)
1955
36.1 C (97.0 F)
1956
36.7 C (98.1 F)
1957
34.4 C (93.9 F)
1958
36.1 C (97.0 F)
1959
35.0 C (95.0 F)
1960
36.1 C (97.0 F)
1961
35.0 C (95.0 F)
1962
37.8 C (100.0 F)
1963
36.1 C (97.0 F)
1964
35.0 C (95.0 F)
1965
33.3 C (91.9 F)
1966
35.0 C (95.0 F)
1967
32.8 C (91.0 F)
1968
35.0 C (95.0 F)
1969
35.6 C (96.1 F)
1970
34.4 C (93.9 F)
1971
36.7 C (98.1 F)
1972
35.0 C (95.0 F)
1973
36.7 C (98.1 F)
1974
33.3 C (91.9 F)
1975
34.4 C (93.9 F)
1976
36.1 C (97.0 F)
1977
36.1 C (97.0 F)
1978
35.0 C (95.0 F)
1979
35.6 C (96.1 F)
1980
36.1 C (97.0 F)
1981
34.4 C (93.9 F)
1982
35.0 C (95.0 F)
1983
33.3 C (91.9 F)
1984
34.4 C (93.9 F)
1985
35.6 C (96.1 F)
1986
35.0 C (95.0 F)
1987
35.0 C (95.0 F)
1988
34.4 C (93.9 F)
1989
36.1 C (97.0 F)
1990
36.1 C (97.0 F)
1991
35.6 C (96.1 F)
1992
35.0 C (95.0 F)
1993
34.4 C (93.9 F)
1994
34.4 C (93.9 F)
1995
35.6 C (96.1 F)
1996
37.2 C (99.0 F)
1997
36.1 C (97.0 F)
Coldest night (TNn)
The coldest night of the year at Parker 6 E, 1922 to 1997. The record is -38.9 C (-38.0 F) in 1963, marked on the chart; the median year is -27.2 C (-17.0 F).
Coldest night (TNn) at Parker 6 E by year
Year
Coldest night (TNn)
1922
n/a
1923
n/a
1924
n/a
1925
n/a
1926
n/a
1930
-25.6 C (-14.1 F)
1931
-24.4 C (-11.9 F)
1932
-33.3 C (-27.9 F)
1933
-33.9 C (-29.0 F)
1934
-22.2 C (-8.0 F)
1935
-30.6 C (-23.1 F)
1936
-37.2 C (-35.0 F)
1937
-34.4 C (-29.9 F)
1938
-26.7 C (-16.1 F)
1939
-28.3 C (-18.9 F)
1940
-33.3 C (-27.9 F)
1941
-27.8 C (-18.0 F)
1942
-33.3 C (-27.9 F)
1943
-31.7 C (-25.1 F)
1944
-25.0 C (-13.0 F)
1945
-25.6 C (-14.1 F)
1946
-25.6 C (-14.1 F)
1947
-26.7 C (-16.1 F)
1948
-30.0 C (-22.0 F)
1949
-31.1 C (-24.0 F)
1950
-27.2 C (-17.0 F)
1951
-36.1 C (-33.0 F)
1952
-25.6 C (-14.1 F)
1953
-26.1 C (-15.0 F)
1954
-24.4 C (-11.9 F)
1955
-28.9 C (-20.0 F)
1956
-23.9 C (-11.0 F)
1957
-22.2 C (-8.0 F)
1958
-25.6 C (-14.1 F)
1959
-28.9 C (-20.0 F)
1960
-28.9 C (-20.0 F)
1961
-30.6 C (-23.1 F)
1962
-37.2 C (-35.0 F)
1963
-38.9 C (-38.0 F)
1964
-26.1 C (-15.0 F)
1965
-25.6 C (-14.1 F)
1966
-28.9 C (-20.0 F)
1967
-28.9 C (-20.0 F)
1968
-27.8 C (-18.0 F)
1969
-27.8 C (-18.0 F)
1970
-28.9 C (-20.0 F)
1971
-30.0 C (-22.0 F)
1972
-35.6 C (-32.1 F)
1973
-27.2 C (-17.0 F)
1974
-26.1 C (-15.0 F)
1975
-22.8 C (-9.0 F)
1976
-23.3 C (-9.9 F)
1977
-22.8 C (-9.0 F)
1978
-27.8 C (-18.0 F)
1979
-26.1 C (-15.0 F)
1980
-23.9 C (-11.0 F)
1981
-26.7 C (-16.1 F)
1982
-30.0 C (-22.0 F)
1983
-31.1 C (-24.0 F)
1984
-28.3 C (-18.9 F)
1985
-26.7 C (-16.1 F)
1986
-21.1 C (-6.0 F)
1987
-20.6 C (-5.1 F)
1988
-22.8 C (-9.0 F)
1989
-33.3 C (-27.9 F)
1990
-32.8 C (-27.0 F)
1991
-22.2 C (-8.0 F)
1992
-22.8 C (-9.0 F)
1993
-23.9 C (-11.0 F)
1994
-19.4 C (-2.9 F)
1995
-20.6 C (-5.1 F)
1996
-27.2 C (-17.0 F)
1997
-25.6 C (-14.1 F)
Wettest day (Rx1day)
The wettest day of the year at Parker 6 E, 1922 to 1997. The record is 91.4 mm (3.6 in) in 1973, marked on the chart; the median year is 38.1 mm (1.5 in).
Wettest day (Rx1day) at Parker 6 E by year
Year
Wettest day (Rx1day)
1922
25.7 mm (1.0 in)
1923
31.8 mm (1.3 in)
1924
27.2 mm (1.1 in)
1925
21.1 mm (0.8 in)
1926
26.9 mm (1.1 in)
1930
45.7 mm (1.8 in)
1931
15.2 mm (0.6 in)
1932
47.5 mm (1.9 in)
1933
46.2 mm (1.8 in)
1934
19.3 mm (0.8 in)
1935
39.4 mm (1.6 in)
1936
48.3 mm (1.9 in)
1937
33.0 mm (1.3 in)
1938
48.3 mm (1.9 in)
1939
10.9 mm (0.4 in)
1940
29.2 mm (1.1 in)
1941
42.2 mm (1.7 in)
1942
41.9 mm (1.6 in)
1943
21.8 mm (0.9 in)
1944
25.9 mm (1.0 in)
1945
33.5 mm (1.3 in)
1946
45.2 mm (1.8 in)
1947
62.5 mm (2.5 in)
1948
48.3 mm (1.9 in)
1949
21.8 mm (0.9 in)
1950
36.8 mm (1.4 in)
1951
76.2 mm (3.0 in)
1952
31.8 mm (1.3 in)
1953
26.7 mm (1.1 in)
1954
17.8 mm (0.7 in)
1955
29.2 mm (1.1 in)
1956
24.1 mm (0.9 in)
1957
50.8 mm (2.0 in)
1958
46.5 mm (1.8 in)
1959
19.1 mm (0.8 in)
1960
36.8 mm (1.4 in)
1961
34.3 mm (1.4 in)
1962
38.1 mm (1.5 in)
1963
36.3 mm (1.4 in)
1964
22.9 mm (0.9 in)
1965
73.7 mm (2.9 in)
1966
21.3 mm (0.8 in)
1967
45.7 mm (1.8 in)
1968
26.2 mm (1.0 in)
1969
40.6 mm (1.6 in)
1970
67.6 mm (2.7 in)
1971
47.0 mm (1.9 in)
1972
42.4 mm (1.7 in)
1973
91.4 mm (3.6 in)
1974
40.1 mm (1.6 in)
1975
48.0 mm (1.9 in)
1976
67.3 mm (2.6 in)
1977
26.7 mm (1.1 in)
1978
29.2 mm (1.1 in)
1979
31.8 mm (1.3 in)
1980
32.0 mm (1.3 in)
1981
23.4 mm (0.9 in)
1982
41.1 mm (1.6 in)
1983
55.9 mm (2.2 in)
1984
31.8 mm (1.3 in)
1985
44.7 mm (1.8 in)
1986
22.9 mm (0.9 in)
1987
74.7 mm (2.9 in)
1988
38.4 mm (1.5 in)
1989
46.5 mm (1.8 in)
1990
26.7 mm (1.1 in)
1991
63.2 mm (2.5 in)
1992
53.3 mm (2.1 in)
1993
43.2 mm (1.7 in)
1994
42.2 mm (1.7 in)
1995
58.4 mm (2.3 in)
1996
35.6 mm (1.4 in)
1997
53.3 mm (2.1 in)
Wettest five days (Rx5day)
The wettest five days of the year at Parker 6 E, 1922 to 1997. The record is 126.4 mm (5.0 in) in 1991, marked on the chart; the median year is 56.0 mm (2.2 in).
Wettest five days (Rx5day) at Parker 6 E by year
Year
Wettest five days (Rx5day)
1922
54.1 mm (2.1 in)
1923
83.1 mm (3.3 in)
1924
69.7 mm (2.7 in)
1925
47.9 mm (1.9 in)
1926
43.9 mm (1.7 in)
1930
48.0 mm (1.9 in)
1931
26.4 mm (1.0 in)
1932
48.3 mm (1.9 in)
1933
71.6 mm (2.8 in)
1934
38.8 mm (1.5 in)
1935
61.7 mm (2.4 in)
1936
73.7 mm (2.9 in)
1937
68.3 mm (2.7 in)
1938
62.9 mm (2.5 in)
1939
14.7 mm (0.6 in)
1940
45.9 mm (1.8 in)
1941
50.8 mm (2.0 in)
1942
72.8 mm (2.9 in)
1943
34.3 mm (1.4 in)
1944
41.9 mm (1.6 in)
1945
65.8 mm (2.6 in)
1946
70.4 mm (2.8 in)
1947
81.3 mm (3.2 in)
1948
53.1 mm (2.1 in)
1949
60.6 mm (2.4 in)
1950
52.0 mm (2.0 in)
1951
81.3 mm (3.2 in)
1952
37.6 mm (1.5 in)
1953
35.3 mm (1.4 in)
1954
26.6 mm (1.0 in)
1955
52.1 mm (2.1 in)
1956
57.8 mm (2.3 in)
1957
72.9 mm (2.9 in)
1958
72.4 mm (2.9 in)
1959
35.3 mm (1.4 in)
1960
49.0 mm (1.9 in)
1961
60.3 mm (2.4 in)
1962
51.6 mm (2.0 in)
1963
83.9 mm (3.3 in)
1964
49.6 mm (2.0 in)
1965
73.7 mm (2.9 in)
1966
32.2 mm (1.3 in)
1967
69.9 mm (2.8 in)
1968
30.0 mm (1.2 in)
1969
102.9 mm (4.1 in)
1970
88.7 mm (3.5 in)
1971
56.1 mm (2.2 in)
1972
48.0 mm (1.9 in)
1973
111.7 mm (4.4 in)
1974
54.9 mm (2.2 in)
1975
63.4 mm (2.5 in)
1976
84.1 mm (3.3 in)
1977
37.4 mm (1.5 in)
1978
44.4 mm (1.7 in)
1979
53.2 mm (2.1 in)
1980
42.2 mm (1.7 in)
1981
48.7 mm (1.9 in)
1982
67.0 mm (2.6 in)
1983
79.3 mm (3.1 in)
1984
61.7 mm (2.4 in)
1985
55.1 mm (2.2 in)
1986
28.2 mm (1.1 in)
1987
93.0 mm (3.7 in)
1988
74.7 mm (2.9 in)
1989
49.0 mm (1.9 in)
1990
36.1 mm (1.4 in)
1991
126.4 mm (5.0 in)
1992
64.2 mm (2.5 in)
1993
47.5 mm (1.9 in)
1994
56.0 mm (2.2 in)
1995
65.3 mm (2.6 in)
1996
65.6 mm (2.6 in)
1997
93.7 mm (3.7 in)
Longest dry spell (CDD)
The longest dry spell of the year at Parker 6 E, 1922 to 1997. The record is 78 days in 1964, marked on the chart; the median year is 37 days.
Longest dry spell (CDD) at Parker 6 E by year
Year
Longest dry spell (CDD)
1922
33 days
1923
33 days
1924
19 days
1925
32 days
1926
16 days
1930
36 days
1931
42 days
1932
47 days
1933
48 days
1934
44 days
1935
53 days
1936
44 days
1937
41 days
1938
41 days
1939
44 days
1940
20 days
1941
20 days
1942
34 days
1943
29 days
1944
34 days
1945
22 days
1946
36 days
1947
46 days
1948
38 days
1949
36 days
1950
38 days
1951
22 days
1952
33 days
1953
37 days
1954
47 days
1955
43 days
1956
60 days
1957
43 days
1958
30 days
1959
31 days
1960
36 days
1961
48 days
1962
33 days
1963
60 days
1964
78 days
1965
37 days
1966
48 days
1967
37 days
1968
29 days
1969
47 days
1970
63 days
1971
56 days
1972
36 days
1973
39 days
1974
37 days
1975
35 days
1976
50 days
1977
48 days
1978
34 days
1979
30 days
1980
43 days
1981
30 days
1982
30 days
1983
31 days
1984
40 days
1985
22 days
1986
30 days
1987
25 days
1988
55 days
1989
52 days
1990
24 days
1991
56 days
1992
47 days
1993
47 days
1994
59 days
1995
31 days
1996
40 days
1997
36 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
61 years with a frost
Across 61 years with a frost, the median last spring frost at Parker 6 E falls on 20 May and the median first autumn frost on 22 September, which leaves a median of 127 days between them.
In 1967 to 1997 the median growing season was 130 days. That is 7 days more than in 1931 to 1965.
Fitted over all years, the growing season changes by +3.5 days per decade at this station.
Frost dates and growing season at Parker 6 E
Measure
Median, all years
Earliest period (1931 to 1965)
Recent period (1967 to 1997)
Recent against earliest
Fitted trend
Last spring frost
20 May
21 May
16 May
5 days earlier
-2.4 days per decade
First autumn frost
22 September
21 September
23 September
2 days later
+1.1 days per decade
Growing days
127 days
123 days
130 days
7 days more
+3.5 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
64 years, 1931 to 1997
A day with at least 38.7 mm (1.5 in) of rain is expected about once in 2 years. A day with at least 87.6 mm (3.4 in) of rain is expected about once in 100 years.
Rainfall return levels at Parker 6 E: the daily rain expected about once in a given number of years
Expected about once in
A day with at least
Note
2 years
38.7 mm (1.5 in)
5 years
53.5 mm (2.1 in)
10 years
62.6 mm (2.5 in)
25 years
73.2 mm (2.9 in)
50 years
80.6 mm (3.2 in)
100 years
87.6 mm (3.4 in)
Longer than the 64 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, 64 years of values from 1931 to 1997.
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: 91.4 mm (3.6 in) in 1973; 76.2 mm (3.0 in) in 1951; 74.7 mm (2.9 in) in 1987.
Station Changes
2 suspected
2 changes were suspected in the annual mean temperature of Parker 6 E, at 1974 and 1993. Each is measured against neighbouring stations.
Relative to 5 neighbouring stations, the station's annual mean temperature from 1974 ran 0.3 C (0.6 F) higher than in the years before (likely change).
Relative to 5 neighbouring stations, the station's annual mean temperature from 1993 ran 0.4 C (0.7 F) higher than in the years before (possible change).
Suspected changes in the annual mean temperature at Parker 6 E, against neighbouring stations
Year
Shift (C)
Shift (F)
Strength
Neighbours
1974
+0.3
+0.6
likely
5
1993
+0.4
+0.7
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 Parker 6 E standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Parker 6 E 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.