Record envelope, standing records and threshold days for Lowell Wwtp (USC00125174), Indiana, United States, with 64 years of record.
Key Facts for Lowell Wwtp
Lowell Wwtp (USC00125174) is a weather station in Indiana, United States at 41.26 latitude and -87.42 longitude, 203 m (665 ft) above sea level.
The station reports from 1963 to 2026, 64 years of record.
1,464 records set at Lowell Wwtp still stand.
Records are tracked for tmax, tmin, prcp, snow, snwd: an element needs 30 years of data to be eligible.
Lowell Wwtp set a daily record precipitation of 42.7 mm (1.7 in) on 28 July 2026.
About the Station
Location: Indiana, United States, 41.26 latitude, -87.42 longitude.
Elevation: 203 m (665 ft).
Period of record: 1963 to 2026, 64 years.
Eligible elements: tmax, tmin, prcp, snow, snwd.
Daily Record Envelope and 2026
7 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 Lowell Wwtp. The lines show the 2026 daily maximum and minimum. 7 days in 2026 matched or passed a record. Temperatures are in degrees Celsius.
Daily record high and record low at Lowell Wwtp, with 2026 drawn through them
Month
Highest record high
Lowest record low
2026 highest maximum
2026 lowest minimum
Jan
18.9 C (66.0 F)
-33.3 C (-27.9 F)
17.2 C (63.0 F)
-21.7 C (-7.1 F)
Feb
22.8 C (73.0 F)
-30.6 C (-23.1 F)
18.9 C (66.0 F)
-20.0 C (-4.0 F)
Mar
29.4 C (84.9 F)
-22.8 C (-9.0 F)
26.7 C (80.1 F)
-8.9 C (16.0 F)
Apr
32.8 C (91.0 F)
-13.9 C (7.0 F)
27.2 C (81.0 F)
-1.7 C (28.9 F)
May
35.6 C (96.1 F)
-4.4 C (24.1 F)
30.0 C (86.0 F)
-1.1 C (30.0 F)
Jun
40.0 C (104.0 F)
0.6 C (33.1 F)
32.2 C (90.0 F)
8.9 C (48.0 F)
Jul
38.3 C (100.9 F)
5.0 C (41.0 F)
34.4 C (93.9 F)
10.0 C (50.0 F)
Aug
40.0 C (104.0 F)
3.3 C (37.9 F)
27.8 C (82.0 F)
18.9 C (66.0 F)
Sep
36.7 C (98.1 F)
-2.2 C (28.0 F)
26.7 C (80.1 F)
7.8 C (46.0 F)
Oct
33.3 C (91.9 F)
-7.8 C (18.0 F)
n/a
n/a
Nov
26.1 C (79.0 F)
-16.7 C (1.9 F)
n/a
n/a
Dec
21.1 C (70.0 F)
-33.9 C (-29.0 F)
n/a
n/a
Which Years Hold Standing Records
1,464 standing records
Year with most
1,464 records at Lowell Wwtp still stand. 1988 holds the most, with 52.
Standing records at Lowell Wwtp by the year they were set
Year set
Standing records
1963
21
1964
32
1965
26
1966
24
1967
30
1968
28
1969
19
1970
28
1971
30
1972
22
1973
20
1974
31
1975
19
1976
31
1977
39
1978
21
1979
36
1980
24
1981
13
1982
35
1983
33
1984
31
1985
17
1986
25
1987
18
1988
52
1989
34
1990
30
1991
41
1992
25
1993
18
1994
17
1995
21
1996
18
1997
25
1998
28
1999
18
2000
26
2001
16
2002
20
2003
7
2004
15
2005
22
2006
19
2007
21
2008
10
2009
11
2010
14
2011
14
2012
33
2013
18
2014
31
2015
23
2016
18
2017
30
2018
25
2019
24
2020
14
2021
13
2022
4
2023
12
2024
17
2025
13
2026
14
All-Time Record Progression
3 new records
3 all-time records were set at Lowell Wwtp between 18 January 1994 and 31 July 1999. Each dot is a new record.
When Lowell Wwtp set new all-time records
Date
Kind
Detail
1994-01-18
Record low maximum temperature
Record low maximum temperature -25.0 C (-13.0 F)
1995-07-14
Record high minimum temperature
Record high minimum temperature 25.6 C (78.1 F)
1999-07-31
Record high minimum temperature
Record high minimum temperature 26.1 C (79.0 F)
Wettest Day of Each Month
Jun: 148.6 mm (5.9 in)
The wettest day on record for each calendar month at Lowell Wwtp. The most was 148.6 mm (5.9 in) on 13 June 1972.
Record daily precipitation for each month at Lowell Wwtp
Month
Record daily precipitation (mm)
Date
Jan
75.9 mm (3.0 in)
11 January 2020
Feb
64.3 mm (2.5 in)
1 February 1968
Mar
55.6 mm (2.2 in)
8 March 2009
Apr
98.6 mm (3.9 in)
14 April 1981
May
73.9 mm (2.9 in)
29 May 1989
Jun
148.6 mm (5.9 in)
13 June 1972
Jul
92.5 mm (3.6 in)
21 July 2003
Aug
134.1 mm (5.3 in)
17 August 1968
Sep
81.3 mm (3.2 in)
9 September 1992
Oct
91.7 mm (3.6 in)
24 October 2021
Nov
130.6 mm (5.1 in)
27 November 1990
Dec
88.9 mm (3.5 in)
24 December 1965
Period of Record Coverage
1963 to 2026
Complete yearUnder 90 percent of days
64 years of record at Lowell Wwtp, 1963 to 2026. 4 years have data for under 90 percent of days and are left out of rankings: 1963, 1976, 2017, 2026.
Cooler than the station meanWarmer than the station mean
One stripe for each of 57 complete years at Lowell Wwtp, 1964 to 2025. Blue stripes are years cooler than the station's own mean of 9.7 C (49.5 F); red stripes are warmer. The coolest year was 1979, at 7.7 C (45.9 F), and the warmest was 1998, at 11.7 C (53.0 F). The strongest colour marks a difference of 2.1 C (3.8 F).
Annual mean temperature at Lowell Wwtp as warming stripes, 1964 to 2025
Year
Annual mean temperature
Difference from the station mean
1964
10.1 C
+0.41 C
1965
10.0 C
+0.28 C
1966
9.5 C
-0.24 C
1967
9.2 C
-0.57 C
1968
9.7 C
+0.00 C
1969
9.0 C
-0.73 C
1970
9.4 C
-0.35 C
1971
9.7 C
+0.00 C
1972
8.5 C
-1.27 C
1973
10.4 C
+0.68 C
1974
9.2 C
-0.50 C
1975
9.9 C
+0.14 C
1977
9.0 C
-0.76 C
1978
7.9 C
-1.88 C
1979
7.7 C
-2.02 C
1980
8.7 C
-1.03 C
1981
9.1 C
-0.63 C
1982
8.7 C
-1.05 C
1983
9.8 C
+0.09 C
1984
9.6 C
-0.11 C
1985
9.2 C
-0.55 C
1986
10.0 C
+0.29 C
1987
10.8 C
+1.05 C
1988
10.0 C
+0.22 C
1989
8.8 C
-0.95 C
1990
10.7 C
+0.94 C
1991
10.9 C
+1.14 C
1992
9.3 C
-0.39 C
1993
9.3 C
-0.46 C
1994
9.6 C
-0.18 C
1995
9.5 C
-0.20 C
1996
8.7 C
-1.00 C
1997
8.9 C
-0.84 C
1998
11.7 C
+1.95 C
1999
10.4 C
+0.62 C
2000
9.4 C
-0.30 C
2001
10.3 C
+0.53 C
2002
10.1 C
+0.40 C
2003
9.2 C
-0.53 C
2004
9.8 C
+0.02 C
2005
10.6 C
+0.86 C
2006
10.8 C
+1.04 C
2007
10.1 C
+0.33 C
2008
8.9 C
-0.79 C
2009
9.0 C
-0.69 C
2010
10.1 C
+0.35 C
2011
10.0 C
+0.25 C
2012
11.3 C
+1.52 C
2013
8.9 C
-0.85 C
2015
9.8 C
+0.02 C
2016
11.1 C
+1.35 C
2018
9.7 C
+0.00 C
2019
9.5 C
-0.24 C
2021
10.4 C
+0.68 C
2023
11.2 C
+1.44 C
2024
11.6 C
+1.91 C
2025
10.3 C
+0.52 C
The annual mean temperature here has risen by 0.2 C (0.1 to 0.3) per decade over 1964 to 2025. In Fahrenheit: 0.4 F (0.1 to 0.6) per decade. The slope is a straight line fitted to 57 complete years; the brackets give its 95 percent interval.
Fitted temperature trends per decade at Lowell Wwtp
Measure
Per decade (C)
Per decade (F)
Period
Complete years
Reading
Annual mean temperature
0.2 C (0.1 to 0.3) per decade
0.4 F (0.1 to 0.6) per decade
1964 to 2025
57
Rise
Mean daily maximum
0.2 C (0.1 to 0.3) per decade
0.3 F (0.1 to 0.6) per decade
1964 to 2025
57
Rise
Mean daily minimum
0.2 C (0.1 to 0.3) per decade
0.4 F (0.1 to 0.6) per decade
1964 to 2025
57
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
1963 to 2026
Yearly extremes at Lowell Wwtp: the record and the median year
Measure
Record
Year of the record
Median year
Years with a value
Hottest day (TXx)
40.0 C (104.0 F)
1988
35.0 C (95.0 F)
64
Coldest night (TNn)
-33.9 C (-29.0 F)
1989
-25.3 C (-13.5 F)
64
Wettest day (Rx1day)
148.6 mm (5.9 in)
1972
65.8 mm (2.6 in)
64
Wettest five days (Rx5day)
211.6 mm (8.3 in)
2007
109.1 mm (4.3 in)
64
Longest dry spell (CDD)
37 days
1964
18 days
64
Hottest day (TXx)
The hottest day of the year at Lowell Wwtp, 1963 to 2026. The record is 40.0 C (104.0 F) in 1988, marked on the chart; the median year is 35.0 C (95.0 F).
Hottest day (TXx) at Lowell Wwtp by year
Year
Hottest day (TXx)
1963
33.3 C (91.9 F)
1964
36.7 C (98.1 F)
1965
35.0 C (95.0 F)
1966
37.8 C (100.0 F)
1967
35.0 C (95.0 F)
1968
35.0 C (95.0 F)
1969
35.0 C (95.0 F)
1970
37.8 C (100.0 F)
1971
36.7 C (98.1 F)
1972
35.0 C (95.0 F)
1973
35.6 C (96.1 F)
1974
37.2 C (99.0 F)
1975
36.7 C (98.1 F)
1976
36.7 C (98.1 F)
1977
36.1 C (97.0 F)
1978
34.4 C (93.9 F)
1979
33.9 C (93.0 F)
1980
38.3 C (100.9 F)
1981
33.3 C (91.9 F)
1982
33.9 C (93.0 F)
1983
37.8 C (100.0 F)
1984
35.0 C (95.0 F)
1985
35.6 C (96.1 F)
1986
35.6 C (96.1 F)
1987
36.1 C (97.0 F)
1988
40.0 C (104.0 F)
1989
35.6 C (96.1 F)
1990
35.6 C (96.1 F)
1991
37.8 C (100.0 F)
1992
35.6 C (96.1 F)
1993
33.9 C (93.0 F)
1994
34.4 C (93.9 F)
1995
38.3 C (100.9 F)
1996
34.4 C (93.9 F)
1997
34.4 C (93.9 F)
1998
35.6 C (96.1 F)
1999
37.2 C (99.0 F)
2000
35.0 C (95.0 F)
2001
34.4 C (93.9 F)
2002
35.6 C (96.1 F)
2003
35.0 C (95.0 F)
2004
33.3 C (91.9 F)
2005
37.2 C (99.0 F)
2006
33.9 C (93.0 F)
2007
33.9 C (93.0 F)
2008
33.9 C (93.0 F)
2009
33.3 C (91.9 F)
2010
33.9 C (93.0 F)
2011
37.8 C (100.0 F)
2012
37.2 C (99.0 F)
2013
36.7 C (98.1 F)
2014
32.8 C (91.0 F)
2015
32.8 C (91.0 F)
2016
35.6 C (96.1 F)
2017
34.4 C (93.9 F)
2018
35.6 C (96.1 F)
2019
34.4 C (93.9 F)
2020
34.4 C (93.9 F)
2021
33.9 C (93.0 F)
2022
36.7 C (98.1 F)
2023
35.0 C (95.0 F)
2024
35.0 C (95.0 F)
2025
34.4 C (93.9 F)
2026
34.4 C (93.9 F)
Coldest night (TNn)
The coldest night of the year at Lowell Wwtp, 1963 to 2026. The record is -33.9 C (-29.0 F) in 1989, marked on the chart; the median year is -25.3 C (-13.5 F).
Coldest night (TNn) at Lowell Wwtp by year
Year
Coldest night (TNn)
1963
-26.7 C (-16.1 F)
1964
-21.7 C (-7.1 F)
1965
-23.9 C (-11.0 F)
1966
-26.7 C (-16.1 F)
1967
-23.9 C (-11.0 F)
1968
-27.8 C (-18.0 F)
1969
-22.2 C (-8.0 F)
1970
-29.4 C (-20.9 F)
1971
-25.6 C (-14.1 F)
1972
-28.9 C (-20.0 F)
1973
-20.6 C (-5.1 F)
1974
-25.6 C (-14.1 F)
1975
-22.8 C (-9.0 F)
1976
-29.4 C (-20.9 F)
1977
-33.3 C (-27.9 F)
1978
-24.4 C (-11.9 F)
1979
-31.1 C (-24.0 F)
1980
-26.7 C (-16.1 F)
1981
-23.9 C (-11.0 F)
1982
-29.4 C (-20.9 F)
1983
-28.9 C (-20.0 F)
1984
-31.1 C (-24.0 F)
1985
-31.7 C (-25.1 F)
1986
-23.3 C (-9.9 F)
1987
-24.4 C (-11.9 F)
1988
-26.1 C (-15.0 F)
1989
-33.9 C (-29.0 F)
1990
-26.1 C (-15.0 F)
1991
-18.3 C (-0.9 F)
1992
-24.4 C (-11.9 F)
1993
-22.2 C (-8.0 F)
1994
-31.1 C (-24.0 F)
1995
-22.8 C (-9.0 F)
1996
-27.2 C (-17.0 F)
1997
-27.2 C (-17.0 F)
1998
-20.0 C (-4.0 F)
1999
-31.7 C (-25.1 F)
2000
-26.7 C (-16.1 F)
2001
-22.2 C (-8.0 F)
2002
-22.8 C (-9.0 F)
2003
-25.0 C (-13.0 F)
2004
-23.9 C (-11.0 F)
2005
-18.9 C (-2.0 F)
2006
-19.4 C (-2.9 F)
2007
-26.1 C (-15.0 F)
2008
-24.4 C (-11.9 F)
2009
-31.7 C (-25.1 F)
2010
-23.9 C (-11.0 F)
2011
-27.2 C (-17.0 F)
2012
-17.2 C (1.0 F)
2013
-22.2 C (-8.0 F)
2014
-30.6 C (-23.1 F)
2015
-25.0 C (-13.0 F)
2016
-27.2 C (-17.0 F)
2017
-25.6 C (-14.1 F)
2018
-27.8 C (-18.0 F)
2019
-30.0 C (-22.0 F)
2020
-13.9 C (7.0 F)
2021
-29.4 C (-20.9 F)
2022
-23.3 C (-9.9 F)
2023
-17.2 C (1.0 F)
2024
-23.3 C (-9.9 F)
2025
-21.7 C (-7.1 F)
2026
-21.7 C (-7.1 F)
Wettest day (Rx1day)
The wettest day of the year at Lowell Wwtp, 1963 to 2026. The record is 148.6 mm (5.9 in) in 1972, marked on the chart; the median year is 65.8 mm (2.6 in).
Wettest day (Rx1day) at Lowell Wwtp by year
Year
Wettest day (Rx1day)
1963
18.5 mm (0.7 in)
1964
59.7 mm (2.4 in)
1965
88.9 mm (3.5 in)
1966
89.4 mm (3.5 in)
1967
49.5 mm (1.9 in)
1968
134.1 mm (5.3 in)
1969
55.1 mm (2.2 in)
1970
57.9 mm (2.3 in)
1971
63.5 mm (2.5 in)
1972
148.6 mm (5.9 in)
1973
62.0 mm (2.4 in)
1974
55.9 mm (2.2 in)
1975
64.8 mm (2.6 in)
1976
67.3 mm (2.6 in)
1977
55.9 mm (2.2 in)
1978
57.2 mm (2.3 in)
1979
50.8 mm (2.0 in)
1980
89.7 mm (3.5 in)
1981
98.6 mm (3.9 in)
1982
62.5 mm (2.5 in)
1983
56.4 mm (2.2 in)
1984
60.5 mm (2.4 in)
1985
83.3 mm (3.3 in)
1986
74.2 mm (2.9 in)
1987
48.3 mm (1.9 in)
1988
48.3 mm (1.9 in)
1989
93.0 mm (3.7 in)
1990
130.6 mm (5.1 in)
1991
66.3 mm (2.6 in)
1992
81.3 mm (3.2 in)
1993
89.2 mm (3.5 in)
1994
65.3 mm (2.6 in)
1995
75.7 mm (3.0 in)
1996
57.2 mm (2.3 in)
1997
97.8 mm (3.9 in)
1998
80.0 mm (3.1 in)
1999
69.9 mm (2.8 in)
2000
79.5 mm (3.1 in)
2001
53.3 mm (2.1 in)
2002
69.1 mm (2.7 in)
2003
92.5 mm (3.6 in)
2004
83.8 mm (3.3 in)
2005
35.6 mm (1.4 in)
2006
65.0 mm (2.6 in)
2007
69.9 mm (2.8 in)
2008
82.6 mm (3.3 in)
2009
62.0 mm (2.4 in)
2010
58.2 mm (2.3 in)
2011
58.4 mm (2.3 in)
2012
94.5 mm (3.7 in)
2013
49.0 mm (1.9 in)
2014
58.4 mm (2.3 in)
2015
63.2 mm (2.5 in)
2016
131.3 mm (5.2 in)
2017
55.9 mm (2.2 in)
2018
62.2 mm (2.4 in)
2019
81.0 mm (3.2 in)
2020
75.9 mm (3.0 in)
2021
91.7 mm (3.6 in)
2022
50.8 mm (2.0 in)
2023
82.3 mm (3.2 in)
2024
71.1 mm (2.8 in)
2025
83.8 mm (3.3 in)
2026
45.7 mm (1.8 in)
Wettest five days (Rx5day)
The wettest five days of the year at Lowell Wwtp, 1963 to 2026. The record is 211.6 mm (8.3 in) in 2007, marked on the chart; the median year is 109.1 mm (4.3 in).
Wettest five days (Rx5day) at Lowell Wwtp by year
Year
Wettest five days (Rx5day)
1963
33.3 mm (1.3 in)
1964
73.1 mm (2.9 in)
1965
115.8 mm (4.6 in)
1966
140.5 mm (5.5 in)
1967
65.0 mm (2.6 in)
1968
145.6 mm (5.7 in)
1969
141.1 mm (5.6 in)
1970
115.1 mm (4.5 in)
1971
73.7 mm (2.9 in)
1972
179.1 mm (7.1 in)
1973
101.6 mm (4.0 in)
1974
89.0 mm (3.5 in)
1975
81.8 mm (3.2 in)
1976
78.4 mm (3.1 in)
1977
108.0 mm (4.3 in)
1978
85.3 mm (3.4 in)
1979
79.0 mm (3.1 in)
1980
123.5 mm (4.9 in)
1981
183.7 mm (7.2 in)
1982
81.6 mm (3.2 in)
1983
119.8 mm (4.7 in)
1984
116.9 mm (4.6 in)
1985
124.1 mm (4.9 in)
1986
128.8 mm (5.1 in)
1987
122.2 mm (4.8 in)
1988
64.0 mm (2.5 in)
1989
176.8 mm (7.0 in)
1990
139.0 mm (5.5 in)
1991
91.7 mm (3.6 in)
1992
109.5 mm (4.3 in)
1993
167.2 mm (6.6 in)
1994
80.5 mm (3.2 in)
1995
102.2 mm (4.0 in)
1996
141.3 mm (5.6 in)
1997
105.5 mm (4.2 in)
1998
94.3 mm (3.7 in)
1999
97.3 mm (3.8 in)
2000
130.5 mm (5.1 in)
2001
93.7 mm (3.7 in)
2002
115.9 mm (4.6 in)
2003
132.1 mm (5.2 in)
2004
120.9 mm (4.8 in)
2005
56.7 mm (2.2 in)
2006
65.3 mm (2.6 in)
2007
211.6 mm (8.3 in)
2008
190.7 mm (7.5 in)
2009
108.7 mm (4.3 in)
2010
89.8 mm (3.5 in)
2011
69.6 mm (2.7 in)
2012
94.5 mm (3.7 in)
2013
72.2 mm (2.8 in)
2014
140.9 mm (5.5 in)
2015
115.1 mm (4.5 in)
2016
175.2 mm (6.9 in)
2017
92.7 mm (3.6 in)
2018
127.3 mm (5.0 in)
2019
106.2 mm (4.2 in)
2020
123.2 mm (4.9 in)
2021
138.2 mm (5.4 in)
2022
56.8 mm (2.2 in)
2023
84.1 mm (3.3 in)
2024
99.6 mm (3.9 in)
2025
126.0 mm (5.0 in)
2026
148.1 mm (5.8 in)
Longest dry spell (CDD)
The longest dry spell of the year at Lowell Wwtp, 1963 to 2026. The record is 37 days in 1964, marked on the chart; the median year is 18 days.
Longest dry spell (CDD) at Lowell Wwtp by year
Year
Longest dry spell (CDD)
1963
18 days
1964
37 days
1965
19 days
1966
26 days
1967
24 days
1968
21 days
1969
28 days
1970
12 days
1971
14 days
1972
14 days
1973
14 days
1974
15 days
1975
15 days
1976
27 days
1977
17 days
1978
15 days
1979
33 days
1980
26 days
1981
25 days
1982
15 days
1983
26 days
1984
16 days
1985
13 days
1986
33 days
1987
19 days
1988
16 days
1989
15 days
1990
16 days
1991
26 days
1992
15 days
1993
19 days
1994
13 days
1995
29 days
1996
19 days
1997
14 days
1998
13 days
1999
25 days
2000
24 days
2001
14 days
2002
20 days
2003
22 days
2004
16 days
2005
24 days
2006
16 days
2007
16 days
2008
21 days
2009
23 days
2010
20 days
2011
12 days
2012
21 days
2013
14 days
2014
13 days
2015
20 days
2016
15 days
2017
20 days
2018
13 days
2019
13 days
2020
17 days
2021
14 days
2022
20 days
2023
19 days
2024
25 days
2025
17 days
2026
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
57 years with a frost
Across 57 years with a frost, the median last spring frost at Lowell Wwtp falls on 30 April and the median first autumn frost on 12 October, which leaves a median of 165 days between them.
Fitted over all years, the growing season changes by +3.2 days per decade at this station.
Frost dates and growing season at Lowell Wwtp
Measure
Median, all years
Earliest period
Recent period (1992 to 2025)
Recent against earliest
Fitted trend
Last spring frost
30 April
n/a
27 April
n/a
-1.3 days per decade
First autumn frost
12 October
n/a
14 October
n/a
+1.8 days per decade
Growing days
165 days
n/a
171 days
n/a
+3.2 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
62 years, 1964 to 2025
A day with at least 68.5 mm (2.7 in) of rain is expected about once in 2 years. A day with at least 153.5 mm (6.0 in) of rain is expected about once in 100 years.
Rainfall return levels at Lowell Wwtp: the daily rain expected about once in a given number of years
Expected about once in
A day with at least
Note
2 years
68.5 mm (2.7 in)
5 years
87.4 mm (3.4 in)
10 years
101.4 mm (4.0 in)
25 years
120.8 mm (4.8 in)
50 years
136.5 mm (5.4 in)
100 years
153.5 mm (6.0 in)
Longer than the 62 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, 62 years of values from 1964 to 2025.
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: 148.6 mm (5.9 in) in 1972; 134.1 mm (5.3 in) in 1968; 131.3 mm (5.2 in) in 2016.
Station Changes
No change in the annual mean temperature of this station was found against its neighbours.
Climate Twins
2007 to 2025 against 1961 to 1990
Over 2007 to 2025, Lowell Wwtp had a mean temperature of 10.1 C (50.2 F) and 1,067.0 mm (42.0 in) of rain a year. The 3 stations whose 1961 to 1990 climate was closest to that are Crawfordsville Pwr Plt (United States, 142 km away), New Castle 3 SW (United States, 229 km away) and Frankfort Disposal (United States, 132 km away).
Climate twins of Lowell Wwtp: stations whose 1961 to 1990 climate is closest to its 2007 to 2025 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 Lowell Wwtp standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Lowell Wwtp 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 2026-10-12 (12 October 2026). Records are computed by this site and are not official.