Record envelope, standing records and threshold days for Mannford 6 NW (USC00345522), Oklahoma, United States, with 72 years of record.
Key Facts for Mannford 6 NW
Mannford 6 NW (USC00345522) is a weather station in Oklahoma, United States at 36.17 latitude and -96.44 longitude, 253 m (830 ft) above sea level.
The station reports from 1943 to 2014, 72 years of record.
1,464 records set at Mannford 6 NW still stand.
Records are tracked for tmax, tmin, prcp, snow, snwd: an element needs 30 years of data to be eligible.
Mannford 6 NW tied a daily record high maximum temperature of 24.4 C (75.9 F) on 29 November 2014.
About the Station
Location: Oklahoma, United States, 36.17 latitude, -96.44 longitude.
Elevation: 253 m (830 ft).
Period of record: 1943 to 2014, 72 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 Mannford 6 NW. 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 Mannford 6 NW, 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)
-23.3 C (-9.9 F)
n/a
n/a
Feb
33.3 C (91.9 F)
-25.6 C (-14.1 F)
n/a
n/a
Mar
35.6 C (96.1 F)
-18.3 C (-0.9 F)
n/a
n/a
Apr
38.9 C (102.0 F)
-5.6 C (21.9 F)
n/a
n/a
May
36.7 C (98.1 F)
-0.6 C (30.9 F)
n/a
n/a
Jun
40.0 C (104.0 F)
5.6 C (42.1 F)
n/a
n/a
Jul
45.0 C (113.0 F)
8.3 C (46.9 F)
n/a
n/a
Aug
45.0 C (113.0 F)
9.4 C (48.9 F)
n/a
n/a
Sep
44.4 C (111.9 F)
-0.6 C (30.9 F)
n/a
n/a
Oct
36.7 C (98.1 F)
-10.6 C (12.9 F)
n/a
n/a
Nov
31.1 C (88.0 F)
-16.1 C (3.0 F)
n/a
n/a
Dec
26.7 C (80.1 F)
-26.7 C (-16.1 F)
n/a
n/a
Which Years Hold Standing Records
1,464 standing records
Year with most
1,464 records at Mannford 6 NW still stand. 2011 holds the most, with 60.
Standing records at Mannford 6 NW by the year they were set
Year set
Standing records
1966
18
1967
39
1968
29
1969
18
1970
36
1971
22
1972
46
1973
19
1974
34
1975
26
1976
45
1977
31
1978
35
1979
35
1980
44
1981
35
1982
32
1983
45
1984
32
1985
26
1986
30
1987
26
1988
22
1989
49
1990
33
1991
26
1992
19
1993
27
1994
17
1995
28
1996
34
1997
20
1998
24
1999
23
2000
31
2001
19
2002
16
2003
21
2004
29
2005
22
2006
37
2007
23
2008
20
2009
37
2010
19
2011
60
2012
40
2013
27
2014
38
All-Time Record Progression
7 new records
7 all-time records were set at Mannford 6 NW between 19 January 1987 and 8 August 2011. Each dot is a new record.
When Mannford 6 NW set new all-time records
Date
Kind
Detail
1987-01-19
Record snow depth
Record snow depth 22.9 cm (9.0 in)
1988-01-07
Record snow depth
Record snow depth 25.4 cm (10.0 in)
1994-03-09
Record daily snowfall
Record daily snowfall 27.9 cm (11.0 in)
2001-07-18
Record high minimum temperature
Record high minimum temperature 29.4 C (84.9 F)
2011-02-02
Record daily snowfall
Record daily snowfall 30.5 cm (12.0 in)
2011-02-02
Record snow depth
Record snow depth 30.5 cm (12.0 in)
2011-08-08
Record high minimum temperature
Record high minimum temperature 30.0 C (86.0 F)
Wettest Day of Each Month
Sep: 188.0 mm (7.4 in)
The wettest day on record for each calendar month at Mannford 6 NW. The most was 188.0 mm (7.4 in) on 5 September 1971.
Record daily precipitation for each month at Mannford 6 NW
Month
Record daily precipitation (mm)
Date
Jan
100.6 mm (4.0 in)
5 January 1946
Feb
98.6 mm (3.9 in)
23 February 1985
Mar
75.7 mm (3.0 in)
20 March 2012
Apr
113.3 mm (4.5 in)
27 April 1998
May
116.8 mm (4.6 in)
6 May 2000
Jun
138.9 mm (5.5 in)
22 June 1948
Jul
88.9 mm (3.5 in)
11 July 1950
Aug
123.2 mm (4.9 in)
10 August 1974
Sep
188.0 mm (7.4 in)
5 September 1971
Oct
105.2 mm (4.1 in)
18 October 1998
Nov
128.5 mm (5.1 in)
3 November 1974
Dec
54.4 mm (2.1 in)
20 December 1991
Period of Record Coverage
1966 to 2014
Complete yearUnder 90 percent of days
49 years of record at Mannford 6 NW, 1966 to 2014. 3 years have data for under 90 percent of days and are left out of rankings: 1966, 2000, 2004.
Cooler than the station meanWarmer than the station mean
One stripe for each of 41 complete years at Mannford 6 NW, 1967 to 2013. Blue stripes are years cooler than the station's own mean of 15.8 C (60.5 F); red stripes are warmer. The coolest year was 1979, at 14.8 C (58.6 F), and the warmest was 2012, at 17.8 C (64.1 F). The strongest colour marks a difference of 2.1 C (3.8 F).
Annual mean temperature at Mannford 6 NW as warming stripes, 1967 to 2013
Year
Annual mean temperature
Difference from the station mean
1967
15.4 C
-0.38 C
1968
14.9 C
-0.90 C
1969
15.4 C
-0.37 C
1970
15.2 C
-0.57 C
1971
15.2 C
-0.66 C
1972
15.1 C
-0.69 C
1973
14.9 C
-0.96 C
1974
15.2 C
-0.60 C
1977
16.3 C
+0.48 C
1978
15.4 C
-0.40 C
1979
14.8 C
-1.02 C
1980
16.7 C
+0.85 C
1981
16.6 C
+0.82 C
1982
15.9 C
+0.12 C
1984
15.8 C
+0.00 C
1985
15.1 C
-0.67 C
1986
16.4 C
+0.58 C
1987
15.9 C
+0.07 C
1988
16.0 C
+0.17 C
1989
15.1 C
-0.72 C
1990
16.9 C
+1.08 C
1991
16.6 C
+0.77 C
1992
15.5 C
-0.29 C
1993
15.0 C
-0.80 C
1994
15.8 C
+0.01 C
1995
15.7 C
-0.07 C
1996
15.5 C
-0.28 C
1997
15.3 C
-0.54 C
1998
16.9 C
+1.04 C
1999
16.7 C
+0.88 C
2001
16.4 C
+0.57 C
2002
15.7 C
-0.14 C
2003
15.8 C
+0.00 C
2006
17.4 C
+1.60 C
2007
16.0 C
+0.15 C
2008
15.6 C
-0.25 C
2009
15.1 C
-0.76 C
2010
15.6 C
-0.26 C
2011
16.5 C
+0.69 C
2012
17.8 C
+2.03 C
2013
15.1 C
-0.70 C
The annual mean temperature here has risen by 0.20 C (0.04 to 0.36) per decade over 1967 to 2013. In Fahrenheit: 0.4 F (0.1 to 0.6) per decade. The slope is a straight line fitted to 41 complete years; the brackets give its 95 percent interval.
Fitted temperature trends per decade at Mannford 6 NW
Measure
Per decade (C)
Per decade (F)
Period
Complete years
Reading
Annual mean temperature
0.20 C (0.04 to 0.36) per decade
0.4 F (0.1 to 0.6) per decade
1967 to 2013
41
Rise
Mean daily maximum
0.05 C (-0.16 to 0.25) per decade
0.1 F (-0.3 to 0.5) per decade
1967 to 2013
41
Not clearly different from zero
Mean daily minimum
0.4 C (0.2 to 0.5) per decade
0.6 F (0.3 to 0.9) per decade
1967 to 2013
41
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
1943 to 2014
Yearly extremes at Mannford 6 NW: 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)
1996
40.6 C (105.1 F)
49
Coldest night (TNn)
-26.7 C (-16.1 F)
1989
-17.2 C (1.0 F)
49
Wettest day (Rx1day)
188.0 mm (7.4 in)
1971
75.6 mm (3.0 in)
72
Wettest five days (Rx5day)
284.5 mm (11.2 in)
1948
109.1 mm (4.3 in)
72
Longest dry spell (CDD)
77 days
1952
29 days
72
Hottest day (TXx)
The hottest day of the year at Mannford 6 NW, 1943 to 2014. The record is 45.0 C (113.0 F) in 1996, marked on the chart; the median year is 40.6 C (105.1 F).
Hottest day (TXx) at Mannford 6 NW by year
Year
Hottest day (TXx)
1943
n/a
1944
n/a
1945
n/a
1946
n/a
1947
n/a
1948
n/a
1949
n/a
1950
n/a
1951
n/a
1952
n/a
1953
n/a
1954
n/a
1955
n/a
1956
n/a
1957
n/a
1958
n/a
1959
n/a
1960
n/a
1961
n/a
1962
n/a
1963
n/a
1964
n/a
1965
n/a
1966
40.6 C (105.1 F)
1967
37.8 C (100.0 F)
1968
40.6 C (105.1 F)
1969
41.7 C (107.1 F)
1970
43.9 C (111.0 F)
1971
41.1 C (106.0 F)
1972
40.6 C (105.1 F)
1973
37.8 C (100.0 F)
1974
44.4 C (111.9 F)
1975
38.3 C (100.9 F)
1976
40.0 C (104.0 F)
1977
42.8 C (109.0 F)
1978
42.2 C (108.0 F)
1979
38.9 C (102.0 F)
1980
43.9 C (111.0 F)
1981
42.8 C (109.0 F)
1982
42.2 C (108.0 F)
1983
42.2 C (108.0 F)
1984
44.4 C (111.9 F)
1985
41.7 C (107.1 F)
1986
44.4 C (111.9 F)
1987
40.6 C (105.1 F)
1988
41.1 C (106.0 F)
1989
38.9 C (102.0 F)
1990
41.1 C (106.0 F)
1991
41.1 C (106.0 F)
1992
34.4 C (93.9 F)
1993
40.6 C (105.1 F)
1994
37.8 C (100.0 F)
1995
38.9 C (102.0 F)
1996
45.0 C (113.0 F)
1997
35.6 C (96.1 F)
1998
41.7 C (107.1 F)
1999
42.8 C (109.0 F)
2000
44.4 C (111.9 F)
2001
40.0 C (104.0 F)
2002
38.9 C (102.0 F)
2003
41.7 C (107.1 F)
2004
37.8 C (100.0 F)
2005
38.9 C (102.0 F)
2006
42.2 C (108.0 F)
2007
38.3 C (100.9 F)
2008
39.4 C (102.9 F)
2009
38.3 C (100.9 F)
2010
40.6 C (105.1 F)
2011
45.0 C (113.0 F)
2012
44.4 C (111.9 F)
2013
39.4 C (102.9 F)
2014
38.9 C (102.0 F)
Coldest night (TNn)
The coldest night of the year at Mannford 6 NW, 1943 to 2014. The record is -26.7 C (-16.1 F) in 1989, marked on the chart; the median year is -17.2 C (1.0 F).
Coldest night (TNn) at Mannford 6 NW by year
Year
Coldest night (TNn)
1943
n/a
1944
n/a
1945
n/a
1946
n/a
1947
n/a
1948
n/a
1949
n/a
1950
n/a
1951
n/a
1952
n/a
1953
n/a
1954
n/a
1955
n/a
1956
n/a
1957
n/a
1958
n/a
1959
n/a
1960
n/a
1961
n/a
1962
n/a
1963
n/a
1964
n/a
1965
n/a
1966
-16.1 C (3.0 F)
1967
-15.6 C (3.9 F)
1968
-18.9 C (-2.0 F)
1969
-16.7 C (1.9 F)
1970
-17.2 C (1.0 F)
1971
-22.2 C (-8.0 F)
1972
-18.9 C (-2.0 F)
1973
-18.9 C (-2.0 F)
1974
-17.2 C (1.0 F)
1975
-17.8 C (0.0 F)
1976
-20.0 C (-4.0 F)
1977
-22.2 C (-8.0 F)
1978
-18.3 C (-0.9 F)
1979
-21.7 C (-7.1 F)
1980
-18.3 C (-0.9 F)
1981
-21.1 C (-6.0 F)
1982
-20.6 C (-5.1 F)
1983
-21.7 C (-7.1 F)
1984
-23.3 C (-9.9 F)
1985
-20.0 C (-4.0 F)
1986
-17.8 C (0.0 F)
1987
-12.2 C (10.0 F)
1988
-21.7 C (-7.1 F)
1989
-26.7 C (-16.1 F)
1990
-17.8 C (0.0 F)
1991
-12.2 C (10.0 F)
1992
-11.7 C (10.9 F)
1993
-16.7 C (1.9 F)
1994
-13.9 C (7.0 F)
1995
-12.8 C (9.0 F)
1996
-25.6 C (-14.1 F)
1997
-16.7 C (1.9 F)
1998
-13.3 C (8.1 F)
1999
-15.0 C (5.0 F)
2000
-16.7 C (1.9 F)
2001
-16.7 C (1.9 F)
2002
-16.1 C (3.0 F)
2003
-13.9 C (7.0 F)
2004
-15.0 C (5.0 F)
2005
-17.8 C (0.0 F)
2006
-12.8 C (9.0 F)
2007
-15.0 C (5.0 F)
2008
-13.9 C (7.0 F)
2009
-15.0 C (5.0 F)
2010
-17.8 C (0.0 F)
2011
-25.6 C (-14.1 F)
2012
-11.1 C (12.0 F)
2013
-13.9 C (7.0 F)
2014
-20.6 C (-5.1 F)
Wettest day (Rx1day)
The wettest day of the year at Mannford 6 NW, 1943 to 2014. The record is 188.0 mm (7.4 in) in 1971, marked on the chart; the median year is 75.6 mm (3.0 in).
Wettest day (Rx1day) at Mannford 6 NW by year
Year
Wettest day (Rx1day)
1943
58.9 mm (2.3 in)
1944
54.4 mm (2.1 in)
1945
96.3 mm (3.8 in)
1946
100.6 mm (4.0 in)
1947
73.7 mm (2.9 in)
1948
138.9 mm (5.5 in)
1949
110.5 mm (4.4 in)
1950
88.9 mm (3.5 in)
1951
68.1 mm (2.7 in)
1952
50.8 mm (2.0 in)
1953
52.8 mm (2.1 in)
1954
46.2 mm (1.8 in)
1955
56.4 mm (2.2 in)
1956
68.6 mm (2.7 in)
1957
65.5 mm (2.6 in)
1958
63.2 mm (2.5 in)
1959
138.4 mm (5.4 in)
1960
65.3 mm (2.6 in)
1961
101.6 mm (4.0 in)
1962
58.9 mm (2.3 in)
1963
54.4 mm (2.1 in)
1964
75.4 mm (3.0 in)
1965
102.6 mm (4.0 in)
1966
43.7 mm (1.7 in)
1967
74.9 mm (2.9 in)
1968
52.1 mm (2.1 in)
1969
81.3 mm (3.2 in)
1970
88.9 mm (3.5 in)
1971
188.0 mm (7.4 in)
1972
99.1 mm (3.9 in)
1973
81.3 mm (3.2 in)
1974
128.5 mm (5.1 in)
1975
58.4 mm (2.3 in)
1976
39.9 mm (1.6 in)
1977
106.4 mm (4.2 in)
1978
56.4 mm (2.2 in)
1979
89.4 mm (3.5 in)
1980
71.1 mm (2.8 in)
1981
65.5 mm (2.6 in)
1982
105.9 mm (4.2 in)
1983
86.4 mm (3.4 in)
1984
53.8 mm (2.1 in)
1985
98.6 mm (3.9 in)
1986
137.7 mm (5.4 in)
1987
55.4 mm (2.2 in)
1988
57.4 mm (2.3 in)
1989
69.1 mm (2.7 in)
1990
94.5 mm (3.7 in)
1991
77.0 mm (3.0 in)
1992
80.5 mm (3.2 in)
1993
98.6 mm (3.9 in)
1994
54.9 mm (2.2 in)
1995
86.9 mm (3.4 in)
1996
86.6 mm (3.4 in)
1997
68.6 mm (2.7 in)
1998
113.3 mm (4.5 in)
1999
68.1 mm (2.7 in)
2000
116.8 mm (4.6 in)
2001
100.6 mm (4.0 in)
2002
83.1 mm (3.3 in)
2003
91.9 mm (3.6 in)
2004
77.5 mm (3.1 in)
2005
53.8 mm (2.1 in)
2006
70.9 mm (2.8 in)
2007
116.3 mm (4.6 in)
2008
79.2 mm (3.1 in)
2009
75.4 mm (3.0 in)
2010
61.2 mm (2.4 in)
2011
124.0 mm (4.9 in)
2012
75.7 mm (3.0 in)
2013
73.2 mm (2.9 in)
2014
47.8 mm (1.9 in)
Wettest five days (Rx5day)
The wettest five days of the year at Mannford 6 NW, 1943 to 2014. The record is 284.5 mm (11.2 in) in 1948, marked on the chart; the median year is 109.1 mm (4.3 in).
Wettest five days (Rx5day) at Mannford 6 NW by year
Year
Wettest five days (Rx5day)
1943
117.3 mm (4.6 in)
1944
71.1 mm (2.8 in)
1945
171.3 mm (6.7 in)
1946
92.5 mm (3.6 in)
1947
25.9 mm (1.0 in)
1948
284.5 mm (11.2 in)
1949
184.7 mm (7.3 in)
1950
96.0 mm (3.8 in)
1951
102.9 mm (4.1 in)
1952
72.3 mm (2.8 in)
1953
78.7 mm (3.1 in)
1954
96.9 mm (3.8 in)
1955
84.5 mm (3.3 in)
1956
68.6 mm (2.7 in)
1957
141.5 mm (5.6 in)
1958
63.2 mm (2.5 in)
1959
177.8 mm (7.0 in)
1960
103.1 mm (4.1 in)
1961
141.1 mm (5.6 in)
1962
111.4 mm (4.4 in)
1963
104.9 mm (4.1 in)
1964
115.8 mm (4.6 in)
1965
145.1 mm (5.7 in)
1966
58.7 mm (2.3 in)
1967
93.5 mm (3.7 in)
1968
98.4 mm (3.9 in)
1969
113.8 mm (4.5 in)
1970
90.4 mm (3.6 in)
1971
250.2 mm (9.9 in)
1972
110.8 mm (4.4 in)
1973
87.7 mm (3.5 in)
1974
204.0 mm (8.0 in)
1975
74.9 mm (2.9 in)
1976
65.8 mm (2.6 in)
1977
106.4 mm (4.2 in)
1978
87.1 mm (3.4 in)
1979
109.9 mm (4.3 in)
1980
119.4 mm (4.7 in)
1981
67.8 mm (2.7 in)
1982
100.4 mm (4.0 in)
1983
157.6 mm (6.2 in)
1984
103.3 mm (4.1 in)
1985
144.1 mm (5.7 in)
1986
229.9 mm (9.1 in)
1987
128.3 mm (5.1 in)
1988
131.6 mm (5.2 in)
1989
87.9 mm (3.5 in)
1990
198.6 mm (7.8 in)
1991
143.6 mm (5.7 in)
1992
125.8 mm (5.0 in)
1993
126.8 mm (5.0 in)
1994
90.9 mm (3.6 in)
1995
157.3 mm (6.2 in)
1996
139.4 mm (5.5 in)
1997
108.2 mm (4.3 in)
1998
147.6 mm (5.8 in)
1999
127.5 mm (5.0 in)
2000
138.4 mm (5.4 in)
2001
139.5 mm (5.5 in)
2002
108.0 mm (4.3 in)
2003
132.8 mm (5.2 in)
2004
131.8 mm (5.2 in)
2005
84.9 mm (3.3 in)
2006
130.6 mm (5.1 in)
2007
164.6 mm (6.5 in)
2008
154.4 mm (6.1 in)
2009
86.8 mm (3.4 in)
2010
105.5 mm (4.2 in)
2011
92.1 mm (3.6 in)
2012
104.9 mm (4.1 in)
2013
97.3 mm (3.8 in)
2014
86.9 mm (3.4 in)
Longest dry spell (CDD)
The longest dry spell of the year at Mannford 6 NW, 1943 to 2014. The record is 77 days in 1952, marked on the chart; the median year is 29 days.
Longest dry spell (CDD) at Mannford 6 NW by year
Year
Longest dry spell (CDD)
1943
37 days
1944
23 days
1945
30 days
1946
39 days
1947
12 days
1948
27 days
1949
40 days
1950
57 days
1951
26 days
1952
77 days
1953
28 days
1954
37 days
1955
56 days
1956
34 days
1957
22 days
1958
29 days
1959
36 days
1960
25 days
1961
21 days
1962
27 days
1963
35 days
1964
29 days
1965
43 days
1966
29 days
1967
25 days
1968
21 days
1969
24 days
1970
36 days
1971
53 days
1972
29 days
1973
24 days
1974
21 days
1975
22 days
1976
35 days
1977
25 days
1978
22 days
1979
32 days
1980
57 days
1981
23 days
1982
21 days
1983
20 days
1984
20 days
1985
19 days
1986
36 days
1987
24 days
1988
30 days
1989
38 days
1990
18 days
1991
28 days
1992
18 days
1993
23 days
1994
24 days
1995
31 days
1996
41 days
1997
23 days
1998
34 days
1999
31 days
2000
36 days
2001
28 days
2002
30 days
2003
36 days
2004
24 days
2005
22 days
2006
22 days
2007
33 days
2008
29 days
2009
26 days
2010
37 days
2011
1 day
2012
34 days
2013
31 days
2014
28 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
41 years with a frost
Across 41 years with a frost, the median last spring frost at Mannford 6 NW falls on 5 April and the median first autumn frost on 24 October, which leaves a median of 201 days between them.
Fitted over all years, the growing season changes by -1.0 days per decade at this station.
Frost dates and growing season at Mannford 6 NW
Measure
Median, all years
Earliest period
Recent period (1980 to 2013)
Recent against earliest
Fitted trend
Last spring frost
5 April
n/a
6 April
n/a
+1.7 days per decade
First autumn frost
24 October
n/a
25 October
n/a
+0.7 days per decade
Growing days
201 days
n/a
203 days
n/a
-1.0 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
66 years, 1948 to 2014
A day with at least 75.7 mm (3.0 in) of rain is expected about once in 2 years. A day with at least 173.9 mm (6.8 in) of rain is expected about once in 100 years.
Rainfall return levels at Mannford 6 NW: the daily rain expected about once in a given number of years
Expected about once in
A day with at least
Note
2 years
75.7 mm (3.0 in)
5 years
99.9 mm (3.9 in)
10 years
116.8 mm (4.6 in)
25 years
139.0 mm (5.5 in)
50 years
156.2 mm (6.1 in)
100 years
173.9 mm (6.8 in)
Longer than the 66 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, 66 years of values from 1948 to 2014.
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: 188.0 mm (7.4 in) in 1971; 138.9 mm (5.5 in) in 1948; 138.4 mm (5.4 in) in 1959.
Station Changes
1 suspected
One change was suspected in the annual mean temperature of Mannford 6 NW, at 2007. Each is measured against neighbouring stations.
Relative to 5 neighbouring stations, the station's annual mean temperature from 2007 ran 0.4 C (0.7 F) lower than in the years before (likely change).
Suspected changes in the annual mean temperature at Mannford 6 NW, against neighbouring stations
Year
Shift (C)
Shift (F)
Strength
Neighbours
2007
-0.4
-0.7
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 Mannford 6 NW standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Mannford 6 NW 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 2026-10-13 (13 October 2026). Records are computed by this site and are not official.