Record envelope, standing records and threshold days for Hamlin (USC00463846), West Virginia, United States, with 116 years of record.
Key Facts for Hamlin
Hamlin (USC00463846) is a weather station in West Virginia, United States at 38.28 latitude and -82.11 longitude, 207 m (680 ft) above sea level.
The station reports from 1899 to 2014, 116 years of record.
1,464 records set at Hamlin still stand.
Records are tracked for tmax, tmin, prcp, snow, snwd: an element needs 30 years of data to be eligible.
Hamlin tied a daily record low maximum temperature of 22.2 C (72.0 F) on 29 July 2014.
About the Station
Location: West Virginia, United States, 38.28 latitude, -82.11 longitude.
Elevation: 207 m (680 ft).
Period of record: 1899 to 2014, 116 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 Hamlin. 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 Hamlin, 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)
-33.3 C (-27.9 F)
n/a
n/a
Feb
27.8 C (82.0 F)
-32.8 C (-27.0 F)
n/a
n/a
Mar
32.2 C (90.0 F)
-22.2 C (-8.0 F)
n/a
n/a
Apr
34.4 C (93.9 F)
-11.7 C (10.9 F)
n/a
n/a
May
35.6 C (96.1 F)
-4.4 C (24.1 F)
n/a
n/a
Jun
40.0 C (104.0 F)
0.6 C (33.1 F)
n/a
n/a
Jul
39.4 C (102.9 F)
3.9 C (39.0 F)
n/a
n/a
Aug
40.6 C (105.1 F)
3.9 C (39.0 F)
n/a
n/a
Sep
38.9 C (102.0 F)
-1.7 C (28.9 F)
n/a
n/a
Oct
36.7 C (98.1 F)
-11.7 C (10.9 F)
n/a
n/a
Nov
31.1 C (88.0 F)
-15.0 C (5.0 F)
n/a
n/a
Dec
27.8 C (82.0 F)
-27.2 C (-17.0 F)
n/a
n/a
Which Years Hold Standing Records
1,464 standing records
Year with most
1,464 records at Hamlin still stand. 1899 holds the most, with 50.
Standing records at Hamlin by the year they were set
Year set
Standing records
1899
50
1900
7
1904
17
1941
17
1942
8
1943
20
1944
24
1945
19
1946
23
1947
22
1948
16
1949
20
1950
30
1951
22
1952
33
1953
30
1954
24
1955
11
1956
19
1957
13
1958
20
1959
18
1960
19
1961
15
1962
24
1963
31
1964
33
1965
18
1966
17
1967
31
1968
14
1969
10
1970
13
1971
16
1972
22
1973
13
1974
21
1975
7
1976
25
1977
28
1978
15
1979
18
1980
12
1981
11
1982
22
1983
18
1984
27
1985
19
1986
20
1987
12
1988
28
1989
23
1990
10
1991
35
1992
10
1993
6
1994
10
1995
8
1996
28
1997
5
1998
19
1999
19
2000
12
2001
17
2002
32
2003
8
2004
12
2005
15
2006
24
2007
37
2008
12
2009
13
2010
17
2011
20
2012
25
2013
13
2014
12
All-Time Record Progression
6 new records
6 all-time records were set at Hamlin between 7 August 1978 and 17 August 2007. Each dot is a new record.
When Hamlin set new all-time records
Date
Kind
Detail
1978-08-07
Record daily precipitation
Record daily precipitation 103.9 mm (4.1 in)
1985-01-21
Record low maximum temperature
Record low maximum temperature -21.7 C (-7.1 F)
1988-07-16
Record high maximum temperature
Record high maximum temperature 39.4 C (102.9 F)
1994-01-19
Record low minimum temperature
Record low minimum temperature -33.3 C (-27.9 F)
1996-06-20
Record high maximum temperature
Record high maximum temperature 40.0 C (104.0 F)
2007-08-17
Record high maximum temperature
Record high maximum temperature 40.6 C (105.1 F)
Wettest Day of Each Month
Aug: 103.9 mm (4.1 in)
The wettest day on record for each calendar month at Hamlin. The most was 103.9 mm (4.1 in) on 7 August 1978.
Record daily precipitation for each month at Hamlin
Month
Record daily precipitation (mm)
Date
Jan
50.8 mm (2.0 in)
1 January 1945
Feb
67.1 mm (2.6 in)
27 February 1962
Mar
78.7 mm (3.1 in)
27 March 1899
Apr
71.1 mm (2.8 in)
13 April 1948
May
85.9 mm (3.4 in)
30 May 1982
Jun
78.0 mm (3.1 in)
8 June 1947
Jul
93.7 mm (3.7 in)
21 July 2010
Aug
103.9 mm (4.1 in)
7 August 1978
Sep
80.0 mm (3.1 in)
20 September 1954
Oct
59.2 mm (2.3 in)
11 October 2002
Nov
90.4 mm (3.6 in)
13 November 2003
Dec
57.9 mm (2.3 in)
3 December 1991
Period of Record Coverage
1899 to 2014
Complete yearUnder 90 percent of days
77 years of record at Hamlin, 1899 to 2014. 8 years have data for under 90 percent of days and are left out of rankings: 1899, 1900, 1904, 1941, 1942, 1943, 1981, 2014.
Cooler than the station meanWarmer than the station mean
One stripe for each of 64 complete years at Hamlin, 1944 to 2013. Blue stripes are years cooler than the station's own mean of 12.3 C (54.1 F); red stripes are warmer. The coolest year was 1976, at 10.8 C (51.4 F), and the warmest was 1998, at 14.0 C (57.3 F). The strongest colour marks a difference of 1.8 C (3.2 F).
Annual mean temperature at Hamlin as warming stripes, 1944 to 2013
Year
Annual mean temperature
Difference from the station mean
1944
12.5 C
+0.20 C
1945
12.5 C
+0.24 C
1946
13.2 C
+0.92 C
1947
12.5 C
+0.25 C
1948
12.4 C
+0.10 C
1949
13.1 C
+0.79 C
1950
12.0 C
-0.29 C
1951
12.4 C
+0.14 C
1952
12.5 C
+0.18 C
1953
12.8 C
+0.51 C
1954
12.4 C
+0.13 C
1956
12.6 C
+0.31 C
1957
12.7 C
+0.40 C
1958
11.1 C
-1.21 C
1959
12.8 C
+0.46 C
1960
11.5 C
-0.75 C
1961
12.0 C
-0.34 C
1962
11.9 C
-0.37 C
1963
10.8 C
-1.47 C
1964
11.6 C
-0.65 C
1965
11.9 C
-0.36 C
1967
11.5 C
-0.83 C
1968
11.4 C
-0.94 C
1969
11.4 C
-0.91 C
1970
12.3 C
+0.00 C
1971
12.1 C
-0.23 C
1972
11.8 C
-0.47 C
1973
12.8 C
+0.48 C
1974
11.9 C
-0.41 C
1975
12.3 C
+0.01 C
1976
10.8 C
-1.52 C
1977
11.6 C
-0.72 C
1978
11.0 C
-1.25 C
1979
11.0 C
-1.26 C
1980
11.1 C
-1.22 C
1983
12.0 C
-0.25 C
1984
11.9 C
-0.40 C
1985
11.9 C
-0.42 C
1986
12.5 C
+0.22 C
1987
12.4 C
+0.09 C
1988
11.8 C
-0.52 C
1989
11.7 C
-0.56 C
1990
12.7 C
+0.40 C
1991
13.1 C
+0.78 C
1992
11.5 C
-0.76 C
1993
12.5 C
+0.20 C
1994
12.4 C
+0.07 C
1995
12.5 C
+0.18 C
1996
11.7 C
-0.58 C
1997
12.1 C
-0.17 C
1998
14.0 C
+1.75 C
1999
12.7 C
+0.41 C
2002
13.3 C
+1.01 C
2003
12.6 C
+0.29 C
2004
13.2 C
+0.92 C
2005
13.2 C
+0.92 C
2006
13.2 C
+0.95 C
2007
13.7 C
+1.38 C
2008
12.5 C
+0.17 C
2009
12.7 C
+0.38 C
2010
13.0 C
+0.75 C
2011
13.7 C
+1.37 C
2012
13.8 C
+1.54 C
2013
12.2 C
-0.12 C
The annual mean temperature here has risen by 0.11 C (0.03 to 0.20) per decade over 1944 to 2013. In Fahrenheit: 0.20 F (0.05 to 0.36) per decade. The slope is a straight line fitted to 64 complete years; the brackets give its 95 percent interval.
Fitted temperature trends per decade at Hamlin
Measure
Per decade (C)
Per decade (F)
Period
Complete years
Reading
Annual mean temperature
0.11 C (0.03 to 0.20) per decade
0.20 F (0.05 to 0.36) per decade
1944 to 2013
64
Rise
Mean daily maximum
0.07 C (-0.05 to 0.19) per decade
0.1 F (-0.1 to 0.3) per decade
1944 to 2013
64
Not clearly different from zero
Mean daily minimum
0.2 C (0.1 to 0.2) per decade
0.3 F (0.1 to 0.4) per decade
1944 to 2013
64
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
1899 to 2014
Yearly extremes at Hamlin: the record and the median year
Measure
Record
Year of the record
Median year
Years with a value
Hottest day (TXx)
40.6 C (105.1 F)
2007
35.6 C (96.1 F)
77
Coldest night (TNn)
-33.3 C (-27.9 F)
1994
-20.0 C (-4.0 F)
77
Wettest day (Rx1day)
103.9 mm (4.1 in)
1978
54.4 mm (2.1 in)
77
Wettest five days (Rx5day)
152.9 mm (6.0 in)
1954
89.4 mm (3.5 in)
77
Longest dry spell (CDD)
29 days
1952
16 days
77
Hottest day (TXx)
The hottest day of the year at Hamlin, 1899 to 2014. The record is 40.6 C (105.1 F) in 2007, marked on the chart; the median year is 35.6 C (96.1 F).
Hottest day (TXx) at Hamlin by year
Year
Hottest day (TXx)
1899
36.7 C (98.1 F)
1900
17.8 C (64.0 F)
1904
34.4 C (93.9 F)
1941
35.6 C (96.1 F)
1942
35.6 C (96.1 F)
1943
36.7 C (98.1 F)
1944
37.8 C (100.0 F)
1945
36.7 C (98.1 F)
1946
33.9 C (93.0 F)
1947
35.0 C (95.0 F)
1948
37.8 C (100.0 F)
1949
36.1 C (97.0 F)
1950
35.0 C (95.0 F)
1951
36.1 C (97.0 F)
1952
38.3 C (100.9 F)
1953
38.9 C (102.0 F)
1954
38.3 C (100.9 F)
1955
36.7 C (98.1 F)
1956
35.0 C (95.0 F)
1957
36.7 C (98.1 F)
1958
34.4 C (93.9 F)
1959
36.7 C (98.1 F)
1960
34.4 C (93.9 F)
1961
33.9 C (93.0 F)
1962
35.6 C (96.1 F)
1963
34.4 C (93.9 F)
1964
36.1 C (97.0 F)
1965
35.0 C (95.0 F)
1966
36.7 C (98.1 F)
1967
34.4 C (93.9 F)
1968
35.0 C (95.0 F)
1969
35.0 C (95.0 F)
1970
37.2 C (99.0 F)
1971
35.0 C (95.0 F)
1972
35.0 C (95.0 F)
1973
36.1 C (97.0 F)
1974
32.2 C (90.0 F)
1975
35.0 C (95.0 F)
1976
37.2 C (99.0 F)
1977
36.7 C (98.1 F)
1978
34.4 C (93.9 F)
1979
33.9 C (93.0 F)
1980
35.6 C (96.1 F)
1981
33.9 C (93.0 F)
1982
32.8 C (91.0 F)
1983
37.2 C (99.0 F)
1984
32.8 C (91.0 F)
1985
32.8 C (91.0 F)
1986
35.0 C (95.0 F)
1987
36.1 C (97.0 F)
1988
39.4 C (102.9 F)
1989
34.4 C (93.9 F)
1990
35.6 C (96.1 F)
1991
36.1 C (97.0 F)
1992
34.4 C (93.9 F)
1993
36.7 C (98.1 F)
1994
36.1 C (97.0 F)
1995
36.7 C (98.1 F)
1996
40.0 C (104.0 F)
1997
35.0 C (95.0 F)
1998
37.8 C (100.0 F)
1999
37.8 C (100.0 F)
2000
35.0 C (95.0 F)
2001
34.4 C (93.9 F)
2002
37.8 C (100.0 F)
2003
34.4 C (93.9 F)
2004
35.0 C (95.0 F)
2005
37.2 C (99.0 F)
2006
37.2 C (99.0 F)
2007
40.6 C (105.1 F)
2008
36.7 C (98.1 F)
2009
34.4 C (93.9 F)
2010
37.2 C (99.0 F)
2011
38.9 C (102.0 F)
2012
38.3 C (100.9 F)
2013
33.9 C (93.0 F)
2014
34.4 C (93.9 F)
Coldest night (TNn)
The coldest night of the year at Hamlin, 1899 to 2014. The record is -33.3 C (-27.9 F) in 1994, marked on the chart; the median year is -20.0 C (-4.0 F).
Coldest night (TNn) at Hamlin by year
Year
Coldest night (TNn)
1899
-32.8 C (-27.0 F)
1900
-13.9 C (7.0 F)
1904
-20.0 C (-4.0 F)
1941
-12.2 C (10.0 F)
1942
-25.6 C (-14.1 F)
1943
-17.8 C (0.0 F)
1944
-20.0 C (-4.0 F)
1945
-21.7 C (-7.1 F)
1946
-20.6 C (-5.1 F)
1947
-16.1 C (3.0 F)
1948
-23.3 C (-9.9 F)
1949
-15.0 C (5.0 F)
1950
-15.6 C (3.9 F)
1951
-19.4 C (-2.9 F)
1952
-17.8 C (0.0 F)
1953
-18.3 C (-0.9 F)
1954
-24.4 C (-11.9 F)
1955
-25.6 C (-14.1 F)
1956
-16.7 C (1.9 F)
1957
-22.8 C (-9.0 F)
1958
-18.3 C (-0.9 F)
1959
-18.9 C (-2.0 F)
1960
-20.0 C (-4.0 F)
1961
-25.6 C (-14.1 F)
1962
-25.0 C (-13.0 F)
1963
-28.9 C (-20.0 F)
1964
-20.6 C (-5.1 F)
1965
-21.7 C (-7.1 F)
1966
-20.6 C (-5.1 F)
1967
-21.7 C (-7.1 F)
1968
-20.6 C (-5.1 F)
1969
-18.3 C (-0.9 F)
1970
-22.8 C (-9.0 F)
1971
-20.6 C (-5.1 F)
1972
-21.1 C (-6.0 F)
1973
-16.1 C (3.0 F)
1974
-11.7 C (10.9 F)
1975
-16.1 C (3.0 F)
1976
-17.8 C (0.0 F)
1977
-26.1 C (-15.0 F)
1978
-22.2 C (-8.0 F)
1979
-22.2 C (-8.0 F)
1980
-20.6 C (-5.1 F)
1981
-22.2 C (-8.0 F)
1982
-28.9 C (-20.0 F)
1983
-22.2 C (-8.0 F)
1984
-28.3 C (-18.9 F)
1985
-26.1 C (-15.0 F)
1986
-19.4 C (-2.9 F)
1987
-20.6 C (-5.1 F)
1988
-18.3 C (-0.9 F)
1989
-27.2 C (-17.0 F)
1990
-13.9 C (7.0 F)
1991
-15.0 C (5.0 F)
1992
-16.1 C (3.0 F)
1993
-22.2 C (-8.0 F)
1994
-33.3 C (-27.9 F)
1995
-19.4 C (-2.9 F)
1996
-28.3 C (-18.9 F)
1997
-16.7 C (1.9 F)
1998
-13.9 C (7.0 F)
1999
-14.4 C (6.1 F)
2000
-19.4 C (-2.9 F)
2001
-17.8 C (0.0 F)
2002
-15.0 C (5.0 F)
2003
-16.7 C (1.9 F)
2004
-18.9 C (-2.0 F)
2005
-17.8 C (0.0 F)
2006
-16.1 C (3.0 F)
2007
-20.0 C (-4.0 F)
2008
-16.7 C (1.9 F)
2009
-20.0 C (-4.0 F)
2010
-18.3 C (-0.9 F)
2011
-15.0 C (5.0 F)
2012
-11.1 C (12.0 F)
2013
-13.9 C (7.0 F)
2014
-22.2 C (-8.0 F)
Wettest day (Rx1day)
The wettest day of the year at Hamlin, 1899 to 2014. The record is 103.9 mm (4.1 in) in 1978, marked on the chart; the median year is 54.4 mm (2.1 in).
Wettest day (Rx1day) at Hamlin by year
Year
Wettest day (Rx1day)
1899
78.7 mm (3.1 in)
1900
22.4 mm (0.9 in)
1904
25.4 mm (1.0 in)
1941
23.1 mm (0.9 in)
1942
76.2 mm (3.0 in)
1943
51.3 mm (2.0 in)
1944
46.0 mm (1.8 in)
1945
50.8 mm (2.0 in)
1946
48.3 mm (1.9 in)
1947
78.0 mm (3.1 in)
1948
71.1 mm (2.8 in)
1949
69.1 mm (2.7 in)
1950
57.2 mm (2.3 in)
1951
53.3 mm (2.1 in)
1952
49.5 mm (1.9 in)
1953
53.3 mm (2.1 in)
1954
82.3 mm (3.2 in)
1955
46.7 mm (1.8 in)
1956
52.1 mm (2.1 in)
1957
43.9 mm (1.7 in)
1958
54.9 mm (2.2 in)
1959
38.4 mm (1.5 in)
1960
47.8 mm (1.9 in)
1961
36.6 mm (1.4 in)
1962
67.1 mm (2.6 in)
1963
41.1 mm (1.6 in)
1964
88.9 mm (3.5 in)
1965
44.2 mm (1.7 in)
1966
81.3 mm (3.2 in)
1967
55.4 mm (2.2 in)
1968
61.5 mm (2.4 in)
1969
70.9 mm (2.8 in)
1970
54.4 mm (2.1 in)
1971
61.0 mm (2.4 in)
1972
47.5 mm (1.9 in)
1973
61.0 mm (2.4 in)
1974
48.5 mm (1.9 in)
1975
62.7 mm (2.5 in)
1976
45.7 mm (1.8 in)
1977
43.2 mm (1.7 in)
1978
103.9 mm (4.1 in)
1979
52.1 mm (2.1 in)
1980
59.7 mm (2.4 in)
1981
59.7 mm (2.4 in)
1982
85.9 mm (3.4 in)
1983
41.9 mm (1.6 in)
1984
41.4 mm (1.6 in)
1985
48.0 mm (1.9 in)
1986
67.1 mm (2.6 in)
1987
56.6 mm (2.2 in)
1988
62.5 mm (2.5 in)
1989
49.5 mm (1.9 in)
1990
51.3 mm (2.0 in)
1991
57.9 mm (2.3 in)
1992
45.0 mm (1.8 in)
1993
70.1 mm (2.8 in)
1994
53.1 mm (2.1 in)
1995
58.7 mm (2.3 in)
1996
79.8 mm (3.1 in)
1997
64.0 mm (2.5 in)
1998
53.3 mm (2.1 in)
1999
71.6 mm (2.8 in)
2000
60.2 mm (2.4 in)
2001
50.5 mm (2.0 in)
2002
59.2 mm (2.3 in)
2003
90.4 mm (3.6 in)
2004
50.3 mm (2.0 in)
2005
59.4 mm (2.3 in)
2006
69.9 mm (2.8 in)
2007
47.5 mm (1.9 in)
2008
48.3 mm (1.9 in)
2009
61.0 mm (2.4 in)
2010
93.7 mm (3.7 in)
2011
44.2 mm (1.7 in)
2012
54.4 mm (2.1 in)
2013
46.5 mm (1.8 in)
2014
47.5 mm (1.9 in)
Wettest five days (Rx5day)
The wettest five days of the year at Hamlin, 1899 to 2014. The record is 152.9 mm (6.0 in) in 1954, marked on the chart; the median year is 89.4 mm (3.5 in).
Wettest five days (Rx5day) at Hamlin by year
Year
Wettest five days (Rx5day)
1899
95.0 mm (3.7 in)
1900
39.2 mm (1.5 in)
1904
43.7 mm (1.7 in)
1941
29.4 mm (1.2 in)
1942
93.2 mm (3.7 in)
1943
68.9 mm (2.7 in)
1944
60.5 mm (2.4 in)
1945
123.2 mm (4.9 in)
1946
70.4 mm (2.8 in)
1947
82.5 mm (3.2 in)
1948
117.6 mm (4.6 in)
1949
130.6 mm (5.1 in)
1950
116.6 mm (4.6 in)
1951
78.5 mm (3.1 in)
1952
73.1 mm (2.9 in)
1953
62.0 mm (2.4 in)
1954
152.9 mm (6.0 in)
1955
74.6 mm (2.9 in)
1956
108.0 mm (4.3 in)
1957
89.6 mm (3.5 in)
1958
73.4 mm (2.9 in)
1959
61.5 mm (2.4 in)
1960
75.8 mm (3.0 in)
1961
62.2 mm (2.4 in)
1962
127.0 mm (5.0 in)
1963
62.3 mm (2.5 in)
1964
103.4 mm (4.1 in)
1965
74.4 mm (2.9 in)
1966
109.5 mm (4.3 in)
1967
97.8 mm (3.9 in)
1968
125.5 mm (4.9 in)
1969
91.1 mm (3.6 in)
1970
89.2 mm (3.5 in)
1971
89.6 mm (3.5 in)
1972
85.2 mm (3.4 in)
1973
89.4 mm (3.5 in)
1974
85.4 mm (3.4 in)
1975
93.2 mm (3.7 in)
1976
69.0 mm (2.7 in)
1977
71.4 mm (2.8 in)
1978
129.8 mm (5.1 in)
1979
81.1 mm (3.2 in)
1980
140.0 mm (5.5 in)
1981
69.9 mm (2.8 in)
1982
99.7 mm (3.9 in)
1983
102.2 mm (4.0 in)
1984
81.3 mm (3.2 in)
1985
77.5 mm (3.1 in)
1986
106.5 mm (4.2 in)
1987
83.2 mm (3.3 in)
1988
96.8 mm (3.8 in)
1989
110.0 mm (4.3 in)
1990
77.6 mm (3.1 in)
1991
87.4 mm (3.4 in)
1992
81.4 mm (3.2 in)
1993
81.5 mm (3.2 in)
1994
104.4 mm (4.1 in)
1995
101.6 mm (4.0 in)
1996
97.8 mm (3.9 in)
1997
141.7 mm (5.6 in)
1998
87.4 mm (3.4 in)
1999
72.4 mm (2.9 in)
2000
90.9 mm (3.6 in)
2001
151.6 mm (6.0 in)
2002
77.5 mm (3.1 in)
2003
127.5 mm (5.0 in)
2004
112.1 mm (4.4 in)
2005
108.9 mm (4.3 in)
2006
115.9 mm (4.6 in)
2007
71.2 mm (2.8 in)
2008
62.0 mm (2.4 in)
2009
99.3 mm (3.9 in)
2010
116.5 mm (4.6 in)
2011
77.0 mm (3.0 in)
2012
136.1 mm (5.4 in)
2013
99.1 mm (3.9 in)
2014
66.9 mm (2.6 in)
Longest dry spell (CDD)
The longest dry spell of the year at Hamlin, 1899 to 2014. The record is 29 days in 1952, marked on the chart; the median year is 16 days.
Longest dry spell (CDD) at Hamlin by year
Year
Longest dry spell (CDD)
1899
20 days
1900
1 day
1904
22 days
1941
19 days
1942
16 days
1943
18 days
1944
14 days
1945
15 days
1946
17 days
1947
9 days
1948
17 days
1949
15 days
1950
11 days
1951
13 days
1952
29 days
1953
24 days
1954
14 days
1955
21 days
1956
16 days
1957
17 days
1958
11 days
1959
18 days
1960
12 days
1961
13 days
1962
15 days
1963
28 days
1964
19 days
1965
23 days
1966
18 days
1967
23 days
1968
12 days
1969
12 days
1970
13 days
1971
12 days
1972
14 days
1973
14 days
1974
17 days
1975
11 days
1976
14 days
1977
23 days
1978
20 days
1979
13 days
1980
15 days
1981
16 days
1982
13 days
1983
17 days
1984
13 days
1985
23 days
1986
18 days
1987
20 days
1988
18 days
1989
14 days
1990
13 days
1991
24 days
1992
12 days
1993
17 days
1994
13 days
1995
16 days
1996
15 days
1997
15 days
1998
19 days
1999
21 days
2000
12 days
2001
17 days
2002
17 days
2003
11 days
2004
22 days
2005
15 days
2006
19 days
2007
16 days
2008
21 days
2009
16 days
2010
14 days
2011
13 days
2012
23 days
2013
11 days
2014
8 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
64 years with a frost
Across 64 years with a frost, the median last spring frost at Hamlin falls on 30 April and the median first autumn frost on 11 October, which leaves a median of 164 days between them.
In 1980 to 2013 the median growing season was 169 days. That is 11 days more than in 1944 to 1975.
Fitted over all years, the growing season changes by +2.8 days per decade at this station.
Frost dates and growing season at Hamlin
Measure
Median, all years
Earliest period (1944 to 1975)
Recent period (1980 to 2013)
Recent against earliest
Fitted trend
Last spring frost
30 April
30 April
30 April
no change
-0.9 days per decade
First autumn frost
11 October
7 October
15 October
8 days later
+1.9 days per decade
Growing days
164 days
158 days
169 days
11 days more
+2.8 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
70 years, 1944 to 2013
A day with at least 55.2 mm (2.2 in) of rain is expected about once in 2 years. A day with at least 109.5 mm (4.3 in) of rain is expected about once in 100 years.
Rainfall return levels at Hamlin: the daily rain expected about once in a given number of years
Expected about once in
A day with at least
Note
2 years
55.2 mm (2.2 in)
5 years
67.7 mm (2.7 in)
10 years
76.8 mm (3.0 in)
25 years
89.1 mm (3.5 in)
50 years
99.0 mm (3.9 in)
100 years
109.5 mm (4.3 in)
Longer than the 70 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, 70 years of values from 1944 to 2013.
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: 103.9 mm (4.1 in) in 1978; 93.7 mm (3.7 in) in 2010; 90.4 mm (3.6 in) in 2003.
Station Changes
1 suspected
One change was suspected in the annual mean temperature of Hamlin, at 1956. Each is measured against neighbouring stations.
Relative to 5 neighbouring stations, the station's annual mean temperature from 1956 ran 0.5 C (0.8 F) higher than in the years before (possible change).
Suspected changes in the annual mean temperature at Hamlin, against neighbouring stations
Year
Shift (C)
Shift (F)
Strength
Neighbours
1956
+0.5
+0.8
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 Hamlin standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Hamlin 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 2026-10-14 (14 October 2026). Records are computed by this site and are not official.