Record envelope, standing records and threshold days for Clayton Lake (USC00171472), Maine, United States, with 64 years of record.
Key Facts for Clayton Lake
Clayton Lake (USC00171472) is a weather station in Maine, United States at 46.61 latitude and -69.52 longitude, 305 m (1,000 ft) above sea level.
The station reports from 1948 to 2011, 64 years of record.
1,464 records set at Clayton Lake still stand.
Records are tracked for prcp: an element needs 30 years of data to be eligible.
Clayton Lake set a daily record precipitation of 12.7 mm (0.5 in) on 7 March 2011.
About the Station
Location: Maine, United States, 46.61 latitude, -69.52 longitude.
Elevation: 305 m (1,000 ft).
Period of record: 1948 to 2011, 64 years.
Eligible elements: prcp.
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 Clayton Lake. 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 Clayton Lake, with 2026 drawn through them
Month
Highest record high
Lowest record low
2026 highest maximum
2026 lowest minimum
Jan
11.7 C (53.1 F)
-41.1 C (-42.0 F)
n/a
n/a
Feb
15.0 C (59.0 F)
-41.7 C (-43.1 F)
n/a
n/a
Mar
21.7 C (71.1 F)
-37.2 C (-35.0 F)
n/a
n/a
Apr
27.2 C (81.0 F)
-22.8 C (-9.0 F)
n/a
n/a
May
31.7 C (89.1 F)
-6.7 C (19.9 F)
n/a
n/a
Jun
33.3 C (91.9 F)
-2.8 C (27.0 F)
n/a
n/a
Jul
33.9 C (93.0 F)
1.1 C (34.0 F)
n/a
n/a
Aug
32.8 C (91.0 F)
-2.2 C (28.0 F)
n/a
n/a
Sep
33.9 C (93.0 F)
-6.1 C (21.0 F)
n/a
n/a
Oct
28.3 C (82.9 F)
-15.0 C (5.0 F)
n/a
n/a
Nov
18.9 C (66.0 F)
-26.7 C (-16.1 F)
n/a
n/a
Dec
14.4 C (57.9 F)
-37.8 C (-36.0 F)
n/a
n/a
Which Years Hold Standing Records
1,464 standing records
Year with most
1,464 records at Clayton Lake still stand. 2003 holds the most, with 80.
Standing records at Clayton Lake by the year they were set
Year set
Standing records
1961
1
1962
61
1963
6
1985
47
1986
54
1987
73
1988
57
1989
49
1990
64
1991
44
1992
65
1993
67
1994
51
1995
69
1996
63
1997
52
1998
47
1999
70
2000
52
2001
43
2002
62
2003
80
2004
36
2005
42
2006
40
2007
53
2008
51
2009
33
2010
25
2011
7
Wettest Day of Each Month
Sep: 91.9 mm (3.6 in)
The wettest day on record for each calendar month at Clayton Lake. The most was 91.9 mm (3.6 in) on 15 September 1996.
Record daily precipitation for each month at Clayton Lake
Month
Record daily precipitation (mm)
Date
Jan
57.4 mm (2.3 in)
23 January 1987
Feb
33.8 mm (1.3 in)
15 February 2000
Mar
43.2 mm (1.7 in)
18 March 2007
Apr
49.0 mm (1.9 in)
24 April 2000
May
45.5 mm (1.8 in)
17 May 1997
Jun
46.5 mm (1.8 in)
23 June 1993
Jul
66.5 mm (2.6 in)
28 July 2006
Aug
88.9 mm (3.5 in)
14 August 1990
Sep
91.9 mm (3.6 in)
15 September 1996
Oct
68.6 mm (2.7 in)
1 October 2010
Nov
45.7 mm (1.8 in)
11 November 1962
Dec
43.2 mm (1.7 in)
18 December 2000
Period of Record Coverage
1961 to 2011
Complete yearUnder 90 percent of days
30 years of record at Clayton Lake, 1961 to 2011. 10 years have data for under 90 percent of days and are left out of rankings: 1961, 1963, 1985, 1989, 1991, 1994, 2006, 2008 and others.
Cooler than the station meanWarmer than the station mean
One stripe for each of 18 complete years at Clayton Lake, 1986 to 2009. Blue stripes are years cooler than the station's own mean of 3.0 C (37.5 F); red stripes are warmer. The coolest year was 1997, at 1.8 C (35.2 F), and the warmest was 1987, at 4.2 C (39.5 F). The strongest colour marks a difference of 1.3 C (2.3 F).
Annual mean temperature at Clayton Lake as warming stripes, 1986 to 2009
Year
Annual mean temperature
Difference from the station mean
1986
3.1 C
+0.08 C
1987
4.2 C
+1.14 C
1988
3.9 C
+0.87 C
1990
3.6 C
+0.52 C
1992
2.3 C
-0.74 C
1993
2.0 C
-1.04 C
1995
2.7 C
-0.39 C
1996
3.0 C
-0.08 C
1997
1.8 C
-1.27 C
1998
4.2 C
+1.13 C
1999
4.2 C
+1.13 C
2000
2.8 C
-0.28 C
2001
3.7 C
+0.61 C
2002
3.0 C
-0.06 C
2003
2.3 C
-0.76 C
2004
2.5 C
-0.58 C
2005
3.3 C
+0.29 C
2009
2.4 C
-0.62 C
This station does not have enough complete years (30 are needed) to fit a temperature trend.
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
1948 to 2011
Yearly extremes at Clayton Lake: the record and the median year
Measure
Record
Year of the record
Median year
Years with a value
Hottest day (TXx)
33.9 C (93.0 F)
2002
31.7 C (89.1 F)
30
Coldest night (TNn)
-41.7 C (-43.1 F)
1962
-34.7 C (-30.5 F)
30
Wettest day (Rx1day)
91.9 mm (3.6 in)
1996
48.1 mm (1.9 in)
34
Wettest five days (Rx5day)
132.9 mm (5.2 in)
1999
67.9 mm (2.7 in)
34
Longest dry spell (CDD)
43 days
2002
15 days
34
Hottest day (TXx)
The hottest day of the year at Clayton Lake, 1948 to 2011. The record is 33.9 C (93.0 F) in 2002, marked on the chart; the median year is 31.7 C (89.1 F).
Hottest day (TXx) at Clayton Lake by year
Year
Hottest day (TXx)
1948
n/a
1949
n/a
1950
n/a
1951
n/a
1961
16.1 C (61.0 F)
1962
30.6 C (87.1 F)
1963
2.8 C (37.0 F)
1985
30.6 C (87.1 F)
1986
30.0 C (86.0 F)
1987
32.8 C (91.0 F)
1988
32.8 C (91.0 F)
1989
32.8 C (91.0 F)
1990
31.7 C (89.1 F)
1991
32.8 C (91.0 F)
1992
31.7 C (89.1 F)
1993
33.3 C (91.9 F)
1994
31.1 C (88.0 F)
1995
32.8 C (91.0 F)
1996
30.6 C (87.1 F)
1997
30.6 C (87.1 F)
1998
32.2 C (90.0 F)
1999
32.2 C (90.0 F)
2000
28.9 C (84.0 F)
2001
32.8 C (91.0 F)
2002
33.9 C (93.0 F)
2003
33.3 C (91.9 F)
2004
28.9 C (84.0 F)
2005
32.2 C (90.0 F)
2006
32.2 C (90.0 F)
2007
31.1 C (88.0 F)
2008
30.6 C (87.1 F)
2009
30.6 C (87.1 F)
2010
32.2 C (90.0 F)
2011
7.2 C (45.0 F)
Coldest night (TNn)
The coldest night of the year at Clayton Lake, 1948 to 2011. The record is -41.7 C (-43.1 F) in 1962, marked on the chart; the median year is -34.7 C (-30.5 F).
Coldest night (TNn) at Clayton Lake by year
Year
Coldest night (TNn)
1948
n/a
1949
n/a
1950
n/a
1951
n/a
1961
-25.0 C (-13.0 F)
1962
-41.7 C (-43.1 F)
1963
-35.6 C (-32.1 F)
1985
-32.2 C (-26.0 F)
1986
-31.7 C (-25.1 F)
1987
-36.1 C (-33.0 F)
1988
-32.8 C (-27.0 F)
1989
-36.7 C (-34.1 F)
1990
-32.8 C (-27.0 F)
1991
-34.4 C (-29.9 F)
1992
-32.2 C (-26.0 F)
1993
-39.4 C (-38.9 F)
1994
-40.0 C (-40.0 F)
1995
-39.4 C (-38.9 F)
1996
-35.0 C (-31.0 F)
1997
-39.4 C (-38.9 F)
1998
-34.4 C (-29.9 F)
1999
-37.8 C (-36.0 F)
2000
-37.8 C (-36.0 F)
2001
-37.2 C (-35.0 F)
2002
-31.7 C (-25.1 F)
2003
-34.4 C (-29.9 F)
2004
-36.1 C (-33.0 F)
2005
-32.8 C (-27.0 F)
2006
-29.4 C (-20.9 F)
2007
-31.7 C (-25.1 F)
2008
-37.8 C (-36.0 F)
2009
-41.1 C (-42.0 F)
2010
-27.2 C (-17.0 F)
2011
-30.6 C (-23.1 F)
Wettest day (Rx1day)
The wettest day of the year at Clayton Lake, 1948 to 2011. The record is 91.9 mm (3.6 in) in 1996, marked on the chart; the median year is 48.1 mm (1.9 in).
Wettest day (Rx1day) at Clayton Lake by year
Year
Wettest day (Rx1day)
1948
32.3 mm (1.3 in)
1949
34.3 mm (1.4 in)
1950
30.5 mm (1.2 in)
1951
30.7 mm (1.2 in)
1961
22.4 mm (0.9 in)
1962
54.6 mm (2.1 in)
1963
16.3 mm (0.6 in)
1985
57.2 mm (2.3 in)
1986
43.2 mm (1.7 in)
1987
57.4 mm (2.3 in)
1988
54.9 mm (2.2 in)
1989
36.6 mm (1.4 in)
1990
88.9 mm (3.5 in)
1991
45.5 mm (1.8 in)
1992
41.1 mm (1.6 in)
1993
46.5 mm (1.8 in)
1994
38.6 mm (1.5 in)
1995
52.1 mm (2.1 in)
1996
91.9 mm (3.6 in)
1997
45.5 mm (1.8 in)
1998
53.3 mm (2.1 in)
1999
57.7 mm (2.3 in)
2000
49.0 mm (1.9 in)
2001
57.2 mm (2.3 in)
2002
60.5 mm (2.4 in)
2003
47.0 mm (1.9 in)
2004
81.3 mm (3.2 in)
2005
71.1 mm (2.8 in)
2006
66.5 mm (2.6 in)
2007
50.8 mm (2.0 in)
2008
39.9 mm (1.6 in)
2009
47.2 mm (1.9 in)
2010
68.6 mm (2.7 in)
2011
30.7 mm (1.2 in)
Wettest five days (Rx5day)
The wettest five days of the year at Clayton Lake, 1948 to 2011. The record is 132.9 mm (5.2 in) in 1999, marked on the chart; the median year is 67.9 mm (2.7 in).
Wettest five days (Rx5day) at Clayton Lake by year
Year
Wettest five days (Rx5day)
1948
55.4 mm (2.2 in)
1949
53.8 mm (2.1 in)
1950
64.6 mm (2.5 in)
1951
57.6 mm (2.3 in)
1961
26.7 mm (1.1 in)
1962
89.2 mm (3.5 in)
1963
49.8 mm (2.0 in)
1985
70.4 mm (2.8 in)
1986
79.3 mm (3.1 in)
1987
66.6 mm (2.6 in)
1988
59.7 mm (2.4 in)
1989
61.5 mm (2.4 in)
1990
102.9 mm (4.1 in)
1991
55.1 mm (2.2 in)
1992
64.8 mm (2.6 in)
1993
65.0 mm (2.6 in)
1994
60.4 mm (2.4 in)
1995
80.1 mm (3.2 in)
1996
101.3 mm (4.0 in)
1997
69.3 mm (2.7 in)
1998
100.0 mm (3.9 in)
1999
132.9 mm (5.2 in)
2000
81.4 mm (3.2 in)
2001
80.6 mm (3.2 in)
2002
112.4 mm (4.4 in)
2003
103.4 mm (4.1 in)
2004
129.6 mm (5.1 in)
2005
99.5 mm (3.9 in)
2006
85.4 mm (3.4 in)
2007
81.9 mm (3.2 in)
2008
59.7 mm (2.4 in)
2009
64.5 mm (2.5 in)
2010
31.6 mm (1.2 in)
2011
43.4 mm (1.7 in)
Longest dry spell (CDD)
The longest dry spell of the year at Clayton Lake, 1948 to 2011. The record is 43 days in 2002, marked on the chart; the median year is 15 days.
Longest dry spell (CDD) at Clayton Lake by year
Year
Longest dry spell (CDD)
1948
16 days
1949
10 days
1950
18 days
1951
14 days
1961
6 days
1962
17 days
1963
10 days
1985
14 days
1986
12 days
1987
20 days
1988
23 days
1989
13 days
1990
14 days
1991
12 days
1992
14 days
1993
16 days
1994
11 days
1995
14 days
1996
12 days
1997
20 days
1998
18 days
1999
19 days
2000
12 days
2001
19 days
2002
43 days
2003
14 days
2004
16 days
2005
20 days
2006
12 days
2007
16 days
2008
38 days
2009
17 days
2010
16 days
2011
6 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.
Download the Data
Data for Clayton Lake standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Clayton Lake 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 2026-10-16 (16 October 2026). Records are computed by this site and are not official.