Record envelope, standing records and threshold days for Lennep 5 SW (USC00244954), Montana, United States, with 61 years of record.
Key Facts for Lennep 5 SW
Lennep 5 SW (USC00244954) is a weather station in Montana, United States at 46.36 latitude and -110.60 longitude, 1,707 m (5,600 ft) above sea level.
The station reports from 1959 to 2019, 61 years of record.
1,464 records set at Lennep 5 SW still stand.
Records are tracked for tmax, tmin, prcp, snow, snwd: an element needs 30 years of data to be eligible.
Lennep 5 SW set a daily record snowfall of 8.1 cm (3.2 in) on 7 November 2018.
About the Station
Location: Montana, United States, 46.36 latitude, -110.60 longitude.
Elevation: 1,707 m (5,600 ft).
Period of record: 1959 to 2019, 61 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 Lennep 5 SW. 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 Lennep 5 SW, with 2026 drawn through them
Month
Highest record high
Lowest record low
2026 highest maximum
2026 lowest minimum
Jan
15.0 C (59.0 F)
-38.9 C (-38.0 F)
n/a
n/a
Feb
15.0 C (59.0 F)
-42.2 C (-44.0 F)
n/a
n/a
Mar
21.1 C (70.0 F)
-34.4 C (-29.9 F)
n/a
n/a
Apr
26.1 C (79.0 F)
-23.3 C (-9.9 F)
n/a
n/a
May
28.3 C (82.9 F)
-11.7 C (10.9 F)
n/a
n/a
Jun
32.2 C (90.0 F)
-7.8 C (18.0 F)
n/a
n/a
Jul
37.2 C (99.0 F)
-2.2 C (28.0 F)
n/a
n/a
Aug
35.6 C (96.1 F)
-6.7 C (19.9 F)
n/a
n/a
Sep
35.0 C (95.0 F)
-12.2 C (10.0 F)
n/a
n/a
Oct
28.3 C (82.9 F)
-26.1 C (-15.0 F)
n/a
n/a
Nov
20.6 C (69.1 F)
-35.6 C (-32.1 F)
n/a
n/a
Dec
16.7 C (62.1 F)
-40.0 C (-40.0 F)
n/a
n/a
Which Years Hold Standing Records
1,464 standing records
Year with most
1,464 records at Lennep 5 SW still stand. 1972 holds the most, with 45.
Standing records at Lennep 5 SW by the year they were set
Year set
Standing records
1959
19
1960
36
1961
32
1962
41
1963
36
1964
26
1965
38
1966
30
1967
20
1968
26
1969
38
1970
11
1971
27
1972
45
1973
31
1974
26
1975
22
1976
14
1977
9
1978
23
1979
17
1980
27
1981
25
1982
17
1983
33
1984
22
1985
39
1986
20
1987
36
1988
29
1989
26
1990
20
1991
26
1992
28
1993
20
1994
21
1995
28
1996
27
1997
25
1998
13
1999
25
2000
22
2001
12
2002
35
2003
27
2004
17
2005
28
2006
20
2007
19
2008
28
2009
27
2010
13
2011
13
2012
21
2013
17
2014
21
2015
28
2016
13
2017
11
2018
18
All-Time Record Progression
1 new records
1 all-time records were set at Lennep 5 SW between 23 May 2008 and 23 May 2008. Each dot is a new record.
When Lennep 5 SW set new all-time records
Date
Kind
Detail
2008-05-23
Record daily precipitation
Record daily precipitation 65.0 mm (2.6 in)
Wettest Day of Each Month
May: 65.0 mm (2.6 in)
The wettest day on record for each calendar month at Lennep 5 SW. The most was 65.0 mm (2.6 in) on 23 May 2008.
Record daily precipitation for each month at Lennep 5 SW
Month
Record daily precipitation (mm)
Date
Jan
21.6 mm (0.9 in)
20 January 1970
Feb
18.0 mm (0.7 in)
27 February 1970
Mar
31.2 mm (1.2 in)
11 March 2014
Apr
41.9 mm (1.6 in)
27 April 1976
May
65.0 mm (2.6 in)
23 May 2008
Jun
45.7 mm (1.8 in)
15 June 1980
Jul
34.8 mm (1.4 in)
5 July 1978
Aug
48.5 mm (1.9 in)
20 August 1974
Sep
37.1 mm (1.5 in)
8 September 1970
Oct
33.8 mm (1.3 in)
21 October 1975
Nov
25.1 mm (1.0 in)
1 November 2017
Dec
25.4 mm (1.0 in)
1 December 1977
Period of Record Coverage
1959 to 2019
Complete yearUnder 90 percent of days
61 years of record at Lennep 5 SW, 1959 to 2019. 4 years have data for under 90 percent of days and are left out of rankings: 1959, 2014, 2017, 2019.
Cooler than the station meanWarmer than the station mean
One stripe for each of 54 complete years at Lennep 5 SW, 1960 to 2018. Blue stripes are years cooler than the station's own mean of 4.0 C (39.1 F); red stripes are warmer. The coolest year was 1975, at 2.4 C (36.3 F), and the warmest was 1987, at 5.4 C (41.8 F). The strongest colour marks a difference of 1.6 C (2.9 F).
Annual mean temperature at Lennep 5 SW as warming stripes, 1960 to 2018
Year
Annual mean temperature
Difference from the station mean
1960
3.4 C
-0.58 C
1961
4.6 C
+0.64 C
1962
3.8 C
-0.17 C
1963
4.3 C
+0.35 C
1964
3.3 C
-0.63 C
1966
4.1 C
+0.13 C
1967
3.9 C
-0.12 C
1968
3.7 C
-0.30 C
1969
4.0 C
+0.02 C
1970
3.6 C
-0.39 C
1971
3.6 C
-0.36 C
1972
3.5 C
-0.44 C
1973
4.1 C
+0.16 C
1974
4.8 C
+0.82 C
1975
2.4 C
-1.56 C
1976
4.3 C
+0.37 C
1977
4.0 C
+0.05 C
1978
3.0 C
-0.93 C
1980
4.0 C
+0.02 C
1981
5.1 C
+1.17 C
1982
2.8 C
-1.14 C
1983
4.0 C
+0.04 C
1984
3.9 C
-0.05 C
1985
2.8 C
-1.14 C
1986
4.5 C
+0.57 C
1987
5.4 C
+1.46 C
1988
5.1 C
+1.09 C
1989
3.7 C
-0.24 C
1990
4.4 C
+0.46 C
1991
4.8 C
+0.85 C
1992
5.2 C
+1.18 C
1993
3.0 C
-0.99 C
1994
4.5 C
+0.55 C
1995
4.2 C
+0.27 C
1996
3.0 C
-1.01 C
1997
3.9 C
-0.05 C
1998
4.5 C
+0.52 C
2000
4.1 C
+0.13 C
2001
4.8 C
+0.81 C
2002
3.0 C
-0.97 C
2003
4.4 C
+0.42 C
2004
4.1 C
+0.09 C
2005
4.0 C
-0.01 C
2006
4.4 C
+0.40 C
2007
4.4 C
+0.41 C
2008
3.0 C
-1.02 C
2009
2.8 C
-1.13 C
2010
3.4 C
-0.58 C
2011
3.2 C
-0.73 C
2012
4.8 C
+0.80 C
2013
3.9 C
-0.05 C
2015
4.9 C
+0.92 C
2016
4.8 C
+0.82 C
2018
3.1 C
-0.84 C
The fitted trend in annual mean temperature here over 1960 to 2018 is 0.03 C (-0.09 to 0.14) per decade. The interval includes zero, so the trend is not clearly different from zero. In Fahrenheit: 0.05 F (-0.17 to 0.26) per decade. The slope is a straight line fitted to 54 complete years; the brackets give its 95 percent interval.
Fitted temperature trends per decade at Lennep 5 SW
Measure
Per decade (C)
Per decade (F)
Period
Complete years
Reading
Annual mean temperature
0.03 C (-0.09 to 0.14) per decade
0.05 F (-0.17 to 0.26) per decade
1960 to 2018
54
Not clearly different from zero
Mean daily maximum
0.01 C (-0.15 to 0.18) per decade
0.02 F (-0.27 to 0.32) per decade
1960 to 2018
54
Not clearly different from zero
Mean daily minimum
0.04 C (-0.08 to 0.16) per decade
0.1 F (-0.2 to 0.3) per decade
1960 to 2018
54
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
1959 to 2019
Yearly extremes at Lennep 5 SW: the record and the median year
Measure
Record
Year of the record
Median year
Years with a value
Hottest day (TXx)
37.2 C (99.0 F)
1988
32.2 C (90.0 F)
61
Coldest night (TNn)
-42.2 C (-44.0 F)
1989
-32.2 C (-26.0 F)
61
Wettest day (Rx1day)
65.0 mm (2.6 in)
2008
27.9 mm (1.1 in)
61
Wettest five days (Rx5day)
113.5 mm (4.5 in)
2008
44.0 mm (1.7 in)
61
Longest dry spell (CDD)
49 days
2005
27 days
61
Hottest day (TXx)
The hottest day of the year at Lennep 5 SW, 1959 to 2019. The record is 37.2 C (99.0 F) in 1988, marked on the chart; the median year is 32.2 C (90.0 F).
Hottest day (TXx) at Lennep 5 SW by year
Year
Hottest day (TXx)
1959
35.0 C (95.0 F)
1960
36.7 C (98.1 F)
1961
35.6 C (96.1 F)
1962
32.8 C (91.0 F)
1963
33.9 C (93.0 F)
1964
34.4 C (93.9 F)
1965
30.6 C (87.1 F)
1966
32.2 C (90.0 F)
1967
31.1 C (88.0 F)
1968
28.9 C (84.0 F)
1969
32.8 C (91.0 F)
1970
30.6 C (87.1 F)
1971
30.6 C (87.1 F)
1972
30.6 C (87.1 F)
1973
31.7 C (89.1 F)
1974
31.1 C (88.0 F)
1975
30.6 C (87.1 F)
1976
30.6 C (87.1 F)
1977
28.9 C (84.0 F)
1978
28.9 C (84.0 F)
1979
31.7 C (89.1 F)
1980
29.4 C (84.9 F)
1981
31.7 C (89.1 F)
1982
29.4 C (84.9 F)
1983
33.3 C (91.9 F)
1984
31.1 C (88.0 F)
1985
32.2 C (90.0 F)
1986
31.1 C (88.0 F)
1987
30.0 C (86.0 F)
1988
37.2 C (99.0 F)
1989
32.2 C (90.0 F)
1990
32.2 C (90.0 F)
1991
31.7 C (89.1 F)
1992
29.4 C (84.9 F)
1993
28.3 C (82.9 F)
1994
32.2 C (90.0 F)
1995
32.8 C (91.0 F)
1996
33.3 C (91.9 F)
1997
30.6 C (87.1 F)
1998
32.8 C (91.0 F)
1999
32.2 C (90.0 F)
2000
33.9 C (93.0 F)
2001
34.4 C (93.9 F)
2002
35.6 C (96.1 F)
2003
34.4 C (93.9 F)
2004
32.2 C (90.0 F)
2005
32.2 C (90.0 F)
2006
33.3 C (91.9 F)
2007
36.1 C (97.0 F)
2008
32.2 C (90.0 F)
2009
31.1 C (88.0 F)
2010
31.1 C (88.0 F)
2011
32.2 C (90.0 F)
2012
32.8 C (91.0 F)
2013
31.7 C (89.1 F)
2014
28.9 C (84.0 F)
2015
32.2 C (90.0 F)
2016
32.2 C (90.0 F)
2017
31.7 C (89.1 F)
2018
34.4 C (93.9 F)
2019
5.6 C (42.1 F)
Coldest night (TNn)
The coldest night of the year at Lennep 5 SW, 1959 to 2019. The record is -42.2 C (-44.0 F) in 1989, marked on the chart; the median year is -32.2 C (-26.0 F).
Coldest night (TNn) at Lennep 5 SW by year
Year
Coldest night (TNn)
1959
-35.6 C (-32.1 F)
1960
-36.1 C (-33.0 F)
1961
-34.4 C (-29.9 F)
1962
-38.9 C (-38.0 F)
1963
-36.7 C (-34.1 F)
1964
-36.7 C (-34.1 F)
1965
-34.4 C (-29.9 F)
1966
-32.2 C (-26.0 F)
1967
-29.4 C (-20.9 F)
1968
-34.4 C (-29.9 F)
1969
-31.1 C (-24.0 F)
1970
-27.8 C (-18.0 F)
1971
-29.4 C (-20.9 F)
1972
-36.7 C (-34.1 F)
1973
-32.2 C (-26.0 F)
1974
-32.2 C (-26.0 F)
1975
-34.4 C (-29.9 F)
1976
-34.4 C (-29.9 F)
1977
-31.7 C (-25.1 F)
1978
-37.2 C (-35.0 F)
1979
-31.7 C (-25.1 F)
1980
-35.6 C (-32.1 F)
1981
-37.8 C (-36.0 F)
1982
-35.6 C (-32.1 F)
1983
-40.0 C (-40.0 F)
1984
-28.9 C (-20.0 F)
1985
-31.7 C (-25.1 F)
1986
-30.0 C (-22.0 F)
1987
-25.0 C (-13.0 F)
1988
-28.9 C (-20.0 F)
1989
-42.2 C (-44.0 F)
1990
-37.2 C (-35.0 F)
1991
-31.1 C (-24.0 F)
1992
-28.9 C (-20.0 F)
1993
-32.2 C (-26.0 F)
1994
-31.7 C (-25.1 F)
1995
-27.8 C (-18.0 F)
1996
-34.4 C (-29.9 F)
1997
-33.9 C (-29.0 F)
1998
-30.0 C (-22.0 F)
1999
-23.3 C (-9.9 F)
2000
-32.2 C (-26.0 F)
2001
-27.8 C (-18.0 F)
2002
-26.1 C (-15.0 F)
2003
-28.3 C (-18.9 F)
2004
-33.3 C (-27.9 F)
2005
-31.7 C (-25.1 F)
2006
-33.3 C (-27.9 F)
2007
-28.3 C (-18.9 F)
2008
-34.4 C (-29.9 F)
2009
-34.4 C (-29.9 F)
2010
-27.8 C (-18.0 F)
2011
-35.6 C (-32.1 F)
2012
-24.4 C (-11.9 F)
2013
-35.6 C (-32.1 F)
2014
-38.3 C (-36.9 F)
2015
-25.0 C (-13.0 F)
2016
-26.7 C (-16.1 F)
2017
-30.6 C (-23.1 F)
2018
-31.1 C (-24.0 F)
2019
-23.9 C (-11.0 F)
Wettest day (Rx1day)
The wettest day of the year at Lennep 5 SW, 1959 to 2019. The record is 65.0 mm (2.6 in) in 2008, marked on the chart; the median year is 27.9 mm (1.1 in).
Wettest day (Rx1day) at Lennep 5 SW by year
Year
Wettest day (Rx1day)
1959
20.3 mm (0.8 in)
1960
14.2 mm (0.6 in)
1961
14.7 mm (0.6 in)
1962
27.2 mm (1.1 in)
1963
25.4 mm (1.0 in)
1964
20.1 mm (0.8 in)
1965
27.9 mm (1.1 in)
1966
18.3 mm (0.7 in)
1967
27.9 mm (1.1 in)
1968
24.1 mm (0.9 in)
1969
31.8 mm (1.3 in)
1970
37.1 mm (1.5 in)
1971
37.6 mm (1.5 in)
1972
35.6 mm (1.4 in)
1973
30.0 mm (1.2 in)
1974
48.5 mm (1.9 in)
1975
33.8 mm (1.3 in)
1976
41.9 mm (1.6 in)
1977
25.4 mm (1.0 in)
1978
41.9 mm (1.6 in)
1979
42.4 mm (1.7 in)
1980
45.7 mm (1.8 in)
1981
22.9 mm (0.9 in)
1982
25.4 mm (1.0 in)
1983
25.4 mm (1.0 in)
1984
35.6 mm (1.4 in)
1985
16.8 mm (0.7 in)
1986
33.0 mm (1.3 in)
1987
16.8 mm (0.7 in)
1988
16.3 mm (0.6 in)
1989
15.0 mm (0.6 in)
1990
27.2 mm (1.1 in)
1991
19.1 mm (0.8 in)
1992
39.1 mm (1.5 in)
1993
22.4 mm (0.9 in)
1994
27.9 mm (1.1 in)
1995
33.0 mm (1.3 in)
1996
39.4 mm (1.6 in)
1997
41.9 mm (1.6 in)
1998
23.4 mm (0.9 in)
1999
26.7 mm (1.1 in)
2000
14.5 mm (0.6 in)
2001
30.2 mm (1.2 in)
2002
25.7 mm (1.0 in)
2003
18.3 mm (0.7 in)
2004
22.1 mm (0.9 in)
2005
42.7 mm (1.7 in)
2006
37.1 mm (1.5 in)
2007
21.1 mm (0.8 in)
2008
65.0 mm (2.6 in)
2009
37.1 mm (1.5 in)
2010
31.0 mm (1.2 in)
2011
39.4 mm (1.6 in)
2012
18.8 mm (0.7 in)
2013
25.4 mm (1.0 in)
2014
31.2 mm (1.2 in)
2015
23.1 mm (0.9 in)
2016
29.0 mm (1.1 in)
2017
29.2 mm (1.1 in)
2018
29.7 mm (1.2 in)
2019
7.1 mm (0.28 in)
Wettest five days (Rx5day)
The wettest five days of the year at Lennep 5 SW, 1959 to 2019. The record is 113.5 mm (4.5 in) in 2008, marked on the chart; the median year is 44.0 mm (1.7 in).
Wettest five days (Rx5day) at Lennep 5 SW by year
Year
Wettest five days (Rx5day)
1959
33.0 mm (1.3 in)
1960
29.7 mm (1.2 in)
1961
32.6 mm (1.3 in)
1962
51.6 mm (2.0 in)
1963
67.8 mm (2.7 in)
1964
55.4 mm (2.2 in)
1965
59.0 mm (2.3 in)
1966
35.4 mm (1.4 in)
1967
43.6 mm (1.7 in)
1968
41.4 mm (1.6 in)
1969
40.1 mm (1.6 in)
1970
37.1 mm (1.5 in)
1971
41.9 mm (1.6 in)
1972
40.4 mm (1.6 in)
1973
34.6 mm (1.4 in)
1974
51.0 mm (2.0 in)
1975
52.3 mm (2.1 in)
1976
62.5 mm (2.5 in)
1977
38.9 mm (1.5 in)
1978
66.6 mm (2.6 in)
1979
82.0 mm (3.2 in)
1980
45.7 mm (1.8 in)
1981
41.6 mm (1.6 in)
1982
50.8 mm (2.0 in)
1983
38.1 mm (1.5 in)
1984
42.4 mm (1.7 in)
1985
36.6 mm (1.4 in)
1986
56.6 mm (2.2 in)
1987
49.4 mm (1.9 in)
1988
32.0 mm (1.3 in)
1989
26.7 mm (1.1 in)
1990
44.0 mm (1.7 in)
1991
44.0 mm (1.7 in)
1992
77.2 mm (3.0 in)
1993
43.3 mm (1.7 in)
1994
40.2 mm (1.6 in)
1995
49.0 mm (1.9 in)
1996
66.8 mm (2.6 in)
1997
70.3 mm (2.8 in)
1998
55.3 mm (2.2 in)
1999
39.9 mm (1.6 in)
2000
29.2 mm (1.1 in)
2001
51.3 mm (2.0 in)
2002
35.8 mm (1.4 in)
2003
30.4 mm (1.2 in)
2004
46.5 mm (1.8 in)
2005
100.8 mm (4.0 in)
2006
58.4 mm (2.3 in)
2007
36.6 mm (1.4 in)
2008
113.5 mm (4.5 in)
2009
47.0 mm (1.9 in)
2010
54.0 mm (2.1 in)
2011
57.1 mm (2.2 in)
2012
27.1 mm (1.1 in)
2013
49.5 mm (1.9 in)
2014
40.9 mm (1.6 in)
2015
41.7 mm (1.6 in)
2016
36.2 mm (1.4 in)
2017
64.0 mm (2.5 in)
2018
69.6 mm (2.7 in)
2019
12.2 mm (0.5 in)
Longest dry spell (CDD)
The longest dry spell of the year at Lennep 5 SW, 1959 to 2019. The record is 49 days in 2005, marked on the chart; the median year is 27 days.
Longest dry spell (CDD) at Lennep 5 SW by year
Year
Longest dry spell (CDD)
1959
35 days
1960
32 days
1961
27 days
1962
33 days
1963
32 days
1964
37 days
1965
35 days
1966
30 days
1967
31 days
1968
43 days
1969
37 days
1970
25 days
1971
31 days
1972
17 days
1973
33 days
1974
28 days
1975
20 days
1976
41 days
1977
28 days
1978
27 days
1979
34 days
1980
26 days
1981
27 days
1982
28 days
1983
30 days
1984
19 days
1985
24 days
1986
24 days
1987
34 days
1988
29 days
1989
20 days
1990
36 days
1991
22 days
1992
26 days
1993
33 days
1994
27 days
1995
24 days
1996
30 days
1997
16 days
1998
27 days
1999
27 days
2000
22 days
2001
25 days
2002
15 days
2003
26 days
2004
19 days
2005
49 days
2006
21 days
2007
35 days
2008
21 days
2009
12 days
2010
20 days
2011
33 days
2012
21 days
2013
21 days
2014
12 days
2015
20 days
2016
23 days
2017
33 days
2018
19 days
2019
9 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
54 years with a frost
Across 54 years with a frost, the median last spring frost at Lennep 5 SW falls on 20 June and the median first autumn frost on 17 August, which leaves a median of 57 days between them.
Fitted over all years, the growing season changes by +5.8 days per decade at this station.
Frost dates and growing season at Lennep 5 SW
Measure
Median, all years
Earliest period
Recent period (1986 to 2018)
Recent against earliest
Fitted trend
Last spring frost
20 June
n/a
20 June
n/a
-0.8 days per decade
First autumn frost
17 August
n/a
23 August
n/a
+5.0 days per decade
Growing days
57 days
n/a
66 days
n/a
+5.8 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
59 years, 1960 to 2018
A day with at least 28.2 mm (1.1 in) of rain is expected about once in 2 years. A day with at least 57.5 mm (2.3 in) of rain is expected about once in 100 years.
Rainfall return levels at Lennep 5 SW: the daily rain expected about once in a given number of years
Expected about once in
A day with at least
Note
2 years
28.2 mm (1.1 in)
5 years
37.1 mm (1.5 in)
10 years
42.6 mm (1.7 in)
25 years
49.0 mm (1.9 in)
50 years
53.4 mm (2.1 in)
100 years
57.5 mm (2.3 in)
Longer than the 59 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, 59 years of values from 1960 to 2018.
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: 65.0 mm (2.6 in) in 2008; 48.5 mm (1.9 in) in 1974; 45.7 mm (1.8 in) in 1980.
Station Changes
No change in the annual mean temperature of this station was found against its neighbours.
Climate Twins
2002 to 2018 against 1961 to 1990
Over 2002 to 2018, Lennep 5 SW had a mean temperature of 3.9 C (39.0 F) and 466.2 mm (18.4 in) of rain a year. The 3 stations whose 1961 to 1990 climate was closest to that are Grant (United States, 865 km away), Sunshine 3NE (United States, 285 km away) and Red Feather Lakes 2 SE (United States, 741 km away).
Climate twins of Lennep 5 SW: stations whose 1961 to 1990 climate is closest to its 2002 to 2018 climate
Twins are stations, not cities. A twin is one of the three stations at least 100 km away whose earlier climate is closest to this station's recent one, so a close match does not mean the two places look alike in other ways. A station move or a gap in a record can change that station's averages. The list describes past climate; it is not a forecast and does not say what caused any change. How twins are found, and a search for any station.
Download the Data
Data for Lennep 5 SW standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Lennep 5 SW 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 2026-10-17 (17 October 2026). Records are computed by this site and are not official.