Record envelope, standing records and threshold days for Hancock (USC00184030), Maryland, United States, with 53 years of record.
Key Facts for Hancock
Hancock (USC00184030) is a weather station in Maryland, United States at 39.70 latitude and -78.18 longitude, 117 m (384 ft) above sea level.
The station reports from 1946 to 1998, 53 years of record.
1,464 records set at Hancock still stand.
Records are tracked for tmax, tmin, prcp, snow, snwd: an element needs 30 years of data to be eligible.
Hancock set a monthly record high maximum temperature of 32.2 C (90.0 F) on 30 March 1998.
About the Station
Location: Maryland, United States, 39.70 latitude, -78.18 longitude.
Elevation: 117 m (384 ft).
Period of record: 1946 to 1998, 53 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 Hancock. 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 Hancock, with 2026 drawn through them
Month
Highest record high
Lowest record low
2026 highest maximum
2026 lowest minimum
Jan
24.4 C (75.9 F)
-32.8 C (-27.0 F)
n/a
n/a
Feb
27.2 C (81.0 F)
-25.6 C (-14.1 F)
n/a
n/a
Mar
32.2 C (90.0 F)
-20.0 C (-4.0 F)
n/a
n/a
Apr
34.4 C (93.9 F)
-9.4 C (15.1 F)
n/a
n/a
May
37.8 C (100.0 F)
-6.1 C (21.0 F)
n/a
n/a
Jun
36.7 C (98.1 F)
0.6 C (33.1 F)
n/a
n/a
Jul
40.6 C (105.1 F)
4.4 C (39.9 F)
n/a
n/a
Aug
38.9 C (102.0 F)
0.6 C (33.1 F)
n/a
n/a
Sep
39.4 C (102.9 F)
-4.4 C (24.1 F)
n/a
n/a
Oct
36.7 C (98.1 F)
-8.9 C (16.0 F)
n/a
n/a
Nov
30.0 C (86.0 F)
-13.3 C (8.1 F)
n/a
n/a
Dec
25.0 C (77.0 F)
-28.3 C (-18.9 F)
n/a
n/a
Which Years Hold Standing Records
1,464 standing records
Year with most
1,464 records at Hancock still stand. 1951 holds the most, with 45.
Standing records at Hancock by the year they were set
Year set
Standing records
1946
23
1947
32
1948
13
1949
39
1950
33
1951
45
1952
34
1953
34
1954
31
1955
20
1956
42
1957
29
1958
26
1959
33
1960
36
1961
25
1962
29
1963
43
1964
40
1965
24
1966
31
1967
39
1968
37
1969
27
1970
27
1971
33
1972
32
1973
23
1974
25
1975
24
1976
36
1977
36
1978
24
1979
43
1980
16
1981
17
1982
23
1983
20
1984
35
1985
17
1986
24
1987
21
1988
40
1989
26
1990
29
1991
36
1992
11
1993
12
1994
22
1995
13
1996
17
1997
9
1998
8
All-Time Record Progression
4 new records
4 all-time records were set at Hancock between 11 February 1983 and 21 January 1994. Each dot is a new record.
When Hancock set new all-time records
Date
Kind
Detail
1983-02-11
Record daily snowfall
Record daily snowfall 52.1 cm (20.5 in)
1994-01-18
Record low minimum temperature
Record low minimum temperature -29.4 C (-20.9 F)
1994-01-19
Record low maximum temperature
Record low maximum temperature -14.4 C (6.1 F)
1994-01-21
Record low minimum temperature
Record low minimum temperature -32.8 C (-27.0 F)
Wettest Day of Each Month
Oct: 141.5 mm (5.6 in)
The wettest day on record for each calendar month at Hancock. The most was 141.5 mm (5.6 in) on 29 October 1973.
Record daily precipitation for each month at Hancock
Month
Record daily precipitation (mm)
Date
Jan
48.3 mm (1.9 in)
1 January 1971
Feb
75.4 mm (3.0 in)
14 February 1984
Mar
56.4 mm (2.2 in)
31 March 1951
Apr
68.1 mm (2.7 in)
4 April 1987
May
66.5 mm (2.6 in)
31 May 1953
Jun
98.0 mm (3.9 in)
22 June 1972
Jul
91.9 mm (3.6 in)
14 July 1987
Aug
94.0 mm (3.7 in)
17 August 1994
Sep
109.2 mm (4.3 in)
1 September 1952
Oct
141.5 mm (5.6 in)
29 October 1973
Nov
100.6 mm (4.0 in)
28 November 1993
Dec
68.3 mm (2.7 in)
2 December 1974
Period of Record Coverage
1946 to 1998
Complete yearUnder 90 percent of days
53 years of record at Hancock, 1946 to 1998. 6 years have data for under 90 percent of days and are left out of rankings: 1946, 1948, 1994, 1996, 1997, 1998.
Cooler than the station meanWarmer than the station mean
One stripe for each of 46 complete years at Hancock, 1947 to 1996. Blue stripes are years cooler than the station's own mean of 11.0 C (51.8 F); red stripes are warmer. The coolest year was 1978, at 10.0 C (50.0 F), and the warmest was 1991, at 12.4 C (54.3 F). The strongest colour marks a difference of 1.4 C (2.5 F).
Annual mean temperature at Hancock as warming stripes, 1947 to 1996
Year
Annual mean temperature
Difference from the station mean
1947
10.9 C
-0.13 C
1949
11.7 C
+0.72 C
1950
10.3 C
-0.77 C
1951
10.7 C
-0.35 C
1952
11.3 C
+0.28 C
1953
11.7 C
+0.71 C
1954
11.0 C
-0.03 C
1955
11.2 C
+0.13 C
1956
10.9 C
-0.15 C
1957
11.3 C
+0.26 C
1958
10.0 C
-0.99 C
1959
11.7 C
+0.67 C
1960
10.5 C
-0.57 C
1961
10.9 C
-0.17 C
1962
10.3 C
-0.76 C
1963
10.2 C
-0.82 C
1964
11.1 C
+0.06 C
1965
11.3 C
+0.31 C
1966
10.5 C
-0.48 C
1967
10.5 C
-0.56 C
1968
10.9 C
-0.13 C
1969
10.9 C
-0.15 C
1970
11.0 C
-0.01 C
1971
11.0 C
-0.04 C
1972
10.6 C
-0.39 C
1973
11.5 C
+0.45 C
1974
10.9 C
-0.10 C
1975
11.3 C
+0.27 C
1976
10.3 C
-0.68 C
1977
11.0 C
-0.06 C
1978
10.0 C
-1.00 C
1979
10.3 C
-0.73 C
1980
10.3 C
-0.73 C
1981
11.0 C
+0.01 C
1982
11.3 C
+0.23 C
1983
11.7 C
+0.69 C
1984
11.8 C
+0.78 C
1985
11.8 C
+0.82 C
1986
11.9 C
+0.87 C
1987
12.1 C
+1.08 C
1988
11.2 C
+0.20 C
1989
10.7 C
-0.28 C
1991
12.4 C
+1.37 C
1993
11.4 C
+0.33 C
1995
11.1 C
+0.03 C
1996
11.0 C
-0.04 C
The fitted trend in annual mean temperature here over 1947 to 1996 is 0.11 C (-0.01 to 0.23) per decade. The interval includes zero, so the trend is not clearly different from zero. In Fahrenheit: 0.19 F (-0.02 to 0.41) per decade. The slope is a straight line fitted to 46 complete years; the brackets give its 95 percent interval.
Fitted temperature trends per decade at Hancock
Measure
Per decade (C)
Per decade (F)
Period
Complete years
Reading
Annual mean temperature
0.11 C (-0.01 to 0.23) per decade
0.19 F (-0.02 to 0.41) per decade
1947 to 1996
46
Not clearly different from zero
Mean daily maximum
0.04 C (-0.16 to 0.23) per decade
0.1 F (-0.3 to 0.4) per decade
1947 to 1996
46
Not clearly different from zero
Mean daily minimum
0.18 C (0.05 to 0.31) per decade
0.3 F (0.1 to 0.6) per decade
1947 to 1996
46
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
1946 to 1998
Yearly extremes at Hancock: 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)
1954
35.6 C (96.1 F)
53
Coldest night (TNn)
-32.8 C (-27.0 F)
1994
-20.0 C (-4.0 F)
53
Wettest day (Rx1day)
141.5 mm (5.6 in)
1973
54.4 mm (2.1 in)
53
Wettest five days (Rx5day)
183.3 mm (7.2 in)
1972
83.6 mm (3.3 in)
53
Longest dry spell (CDD)
31 days
1981
18 days
53
Hottest day (TXx)
The hottest day of the year at Hancock, 1946 to 1998. The record is 40.6 C (105.1 F) in 1954, marked on the chart; the median year is 35.6 C (96.1 F).
Hottest day (TXx) at Hancock by year
Year
Hottest day (TXx)
1946
36.1 C (97.0 F)
1947
35.6 C (96.1 F)
1948
38.9 C (102.0 F)
1949
36.7 C (98.1 F)
1950
35.0 C (95.0 F)
1951
36.1 C (97.0 F)
1952
38.3 C (100.9 F)
1953
39.4 C (102.9 F)
1954
40.6 C (105.1 F)
1955
37.2 C (99.0 F)
1956
35.0 C (95.0 F)
1957
37.2 C (99.0 F)
1958
34.4 C (93.9 F)
1959
36.7 C (98.1 F)
1960
34.4 C (93.9 F)
1961
35.0 C (95.0 F)
1962
38.9 C (102.0 F)
1963
35.0 C (95.0 F)
1964
36.7 C (98.1 F)
1965
35.6 C (96.1 F)
1966
39.4 C (102.9 F)
1967
35.0 C (95.0 F)
1968
36.1 C (97.0 F)
1969
36.7 C (98.1 F)
1970
34.4 C (93.9 F)
1971
33.3 C (91.9 F)
1972
33.9 C (93.0 F)
1973
35.0 C (95.0 F)
1974
32.8 C (91.0 F)
1975
35.0 C (95.0 F)
1976
33.3 C (91.9 F)
1977
37.2 C (99.0 F)
1978
35.0 C (95.0 F)
1979
32.8 C (91.0 F)
1980
37.2 C (99.0 F)
1981
33.9 C (93.0 F)
1982
34.4 C (93.9 F)
1983
38.9 C (102.0 F)
1984
34.4 C (93.9 F)
1985
34.4 C (93.9 F)
1986
35.0 C (95.0 F)
1987
36.7 C (98.1 F)
1988
38.9 C (102.0 F)
1989
34.4 C (93.9 F)
1990
37.8 C (100.0 F)
1991
38.9 C (102.0 F)
1992
34.4 C (93.9 F)
1993
36.7 C (98.1 F)
1994
36.7 C (98.1 F)
1995
35.0 C (95.0 F)
1996
37.8 C (100.0 F)
1997
36.7 C (98.1 F)
1998
32.2 C (90.0 F)
Coldest night (TNn)
The coldest night of the year at Hancock, 1946 to 1998. The record is -32.8 C (-27.0 F) in 1994, marked on the chart; the median year is -20.0 C (-4.0 F).
Coldest night (TNn) at Hancock by year
Year
Coldest night (TNn)
1946
-12.2 C (10.0 F)
1947
-16.7 C (1.9 F)
1948
-18.3 C (-0.9 F)
1949
-21.1 C (-6.0 F)
1950
-22.2 C (-8.0 F)
1951
-27.8 C (-18.0 F)
1952
-15.0 C (5.0 F)
1953
-13.9 C (7.0 F)
1954
-19.4 C (-2.9 F)
1955
-20.0 C (-4.0 F)
1956
-15.0 C (5.0 F)
1957
-20.6 C (-5.1 F)
1958
-18.9 C (-2.0 F)
1959
-21.1 C (-6.0 F)
1960
-28.3 C (-18.9 F)
1961
-25.6 C (-14.1 F)
1962
-22.2 C (-8.0 F)
1963
-27.2 C (-17.0 F)
1964
-21.7 C (-7.1 F)
1965
-20.0 C (-4.0 F)
1966
-18.9 C (-2.0 F)
1967
-22.8 C (-9.0 F)
1968
-27.2 C (-17.0 F)
1969
-18.9 C (-2.0 F)
1970
-19.4 C (-2.9 F)
1971
-16.1 C (3.0 F)
1972
-18.9 C (-2.0 F)
1973
-16.7 C (1.9 F)
1974
-18.3 C (-0.9 F)
1975
-18.9 C (-2.0 F)
1976
-18.3 C (-0.9 F)
1977
-23.3 C (-9.9 F)
1978
-22.8 C (-9.0 F)
1979
-25.0 C (-13.0 F)
1980
-16.7 C (1.9 F)
1981
-20.6 C (-5.1 F)
1982
-23.9 C (-11.0 F)
1983
-22.2 C (-8.0 F)
1984
-25.6 C (-14.1 F)
1985
-24.4 C (-11.9 F)
1986
-17.2 C (1.0 F)
1987
-23.9 C (-11.0 F)
1988
-21.1 C (-6.0 F)
1989
-22.8 C (-9.0 F)
1990
-15.0 C (5.0 F)
1991
-14.4 C (6.1 F)
1992
-16.1 C (3.0 F)
1993
-19.4 C (-2.9 F)
1994
-32.8 C (-27.0 F)
1995
-16.1 C (3.0 F)
1996
-22.2 C (-8.0 F)
1997
-20.0 C (-4.0 F)
1998
-11.1 C (12.0 F)
Wettest day (Rx1day)
The wettest day of the year at Hancock, 1946 to 1998. The record is 141.5 mm (5.6 in) in 1973, marked on the chart; the median year is 54.4 mm (2.1 in).
Wettest day (Rx1day) at Hancock by year
Year
Wettest day (Rx1day)
1946
50.3 mm (2.0 in)
1947
47.8 mm (1.9 in)
1948
40.1 mm (1.6 in)
1949
44.5 mm (1.8 in)
1950
51.3 mm (2.0 in)
1951
56.4 mm (2.2 in)
1952
109.2 mm (4.3 in)
1953
79.2 mm (3.1 in)
1954
47.8 mm (1.9 in)
1955
73.2 mm (2.9 in)
1956
69.3 mm (2.7 in)
1957
40.4 mm (1.6 in)
1958
46.5 mm (1.8 in)
1959
47.2 mm (1.9 in)
1960
53.6 mm (2.1 in)
1961
50.5 mm (2.0 in)
1962
53.8 mm (2.1 in)
1963
62.5 mm (2.5 in)
1964
57.2 mm (2.3 in)
1965
50.8 mm (2.0 in)
1966
46.7 mm (1.8 in)
1967
51.6 mm (2.0 in)
1968
49.5 mm (1.9 in)
1969
34.0 mm (1.3 in)
1970
82.6 mm (3.3 in)
1971
54.4 mm (2.1 in)
1972
98.0 mm (3.9 in)
1973
141.5 mm (5.6 in)
1974
68.3 mm (2.7 in)
1975
51.8 mm (2.0 in)
1976
76.2 mm (3.0 in)
1977
87.6 mm (3.4 in)
1978
58.2 mm (2.3 in)
1979
72.4 mm (2.9 in)
1980
38.6 mm (1.5 in)
1981
53.3 mm (2.1 in)
1982
46.7 mm (1.8 in)
1983
56.1 mm (2.2 in)
1984
75.4 mm (3.0 in)
1985
54.9 mm (2.2 in)
1986
31.5 mm (1.2 in)
1987
91.9 mm (3.6 in)
1988
41.4 mm (1.6 in)
1989
63.5 mm (2.5 in)
1990
53.1 mm (2.1 in)
1991
33.8 mm (1.3 in)
1992
54.9 mm (2.2 in)
1993
100.6 mm (4.0 in)
1994
94.0 mm (3.7 in)
1995
89.7 mm (3.5 in)
1996
74.2 mm (2.9 in)
1997
54.6 mm (2.1 in)
1998
46.2 mm (1.8 in)
Wettest five days (Rx5day)
The wettest five days of the year at Hancock, 1946 to 1998. The record is 183.3 mm (7.2 in) in 1972, marked on the chart; the median year is 83.6 mm (3.3 in).
Wettest five days (Rx5day) at Hancock by year
Year
Wettest five days (Rx5day)
1946
78.3 mm (3.1 in)
1947
75.7 mm (3.0 in)
1948
70.1 mm (2.8 in)
1949
88.9 mm (3.5 in)
1950
97.9 mm (3.9 in)
1951
86.4 mm (3.4 in)
1952
131.8 mm (5.2 in)
1953
81.7 mm (3.2 in)
1954
76.7 mm (3.0 in)
1955
78.4 mm (3.1 in)
1956
101.8 mm (4.0 in)
1957
46.0 mm (1.8 in)
1958
79.5 mm (3.1 in)
1959
53.3 mm (2.1 in)
1960
102.4 mm (4.0 in)
1961
76.7 mm (3.0 in)
1962
66.1 mm (2.6 in)
1963
74.4 mm (2.9 in)
1964
75.2 mm (3.0 in)
1965
64.3 mm (2.5 in)
1966
65.0 mm (2.6 in)
1967
88.4 mm (3.5 in)
1968
83.6 mm (3.3 in)
1969
48.0 mm (1.9 in)
1970
97.0 mm (3.8 in)
1971
109.0 mm (4.3 in)
1972
183.3 mm (7.2 in)
1973
154.7 mm (6.1 in)
1974
75.1 mm (3.0 in)
1975
131.5 mm (5.2 in)
1976
103.9 mm (4.1 in)
1977
94.7 mm (3.7 in)
1978
114.8 mm (4.5 in)
1979
88.2 mm (3.5 in)
1980
74.2 mm (2.9 in)
1981
89.6 mm (3.5 in)
1982
57.6 mm (2.3 in)
1983
62.4 mm (2.5 in)
1984
87.3 mm (3.4 in)
1985
96.5 mm (3.8 in)
1986
62.9 mm (2.5 in)
1987
126.7 mm (5.0 in)
1988
126.7 mm (5.0 in)
1989
76.2 mm (3.0 in)
1990
111.0 mm (4.4 in)
1991
43.4 mm (1.7 in)
1992
77.3 mm (3.0 in)
1993
103.4 mm (4.1 in)
1994
111.8 mm (4.4 in)
1995
89.7 mm (3.5 in)
1996
85.3 mm (3.4 in)
1997
51.5 mm (2.0 in)
1998
52.6 mm (2.1 in)
Longest dry spell (CDD)
The longest dry spell of the year at Hancock, 1946 to 1998. The record is 31 days in 1981, marked on the chart; the median year is 18 days.
Longest dry spell (CDD) at Hancock by year
Year
Longest dry spell (CDD)
1946
10 days
1947
25 days
1948
10 days
1949
19 days
1950
15 days
1951
22 days
1952
29 days
1953
23 days
1954
13 days
1955
25 days
1956
16 days
1957
15 days
1958
24 days
1959
14 days
1960
19 days
1961
15 days
1962
17 days
1963
27 days
1964
26 days
1965
18 days
1966
23 days
1967
14 days
1968
25 days
1969
17 days
1970
15 days
1971
18 days
1972
14 days
1973
18 days
1974
23 days
1975
14 days
1976
20 days
1977
25 days
1978
16 days
1979
12 days
1980
15 days
1981
31 days
1982
18 days
1983
22 days
1984
18 days
1985
18 days
1986
20 days
1987
19 days
1988
21 days
1989
17 days
1990
13 days
1991
25 days
1992
20 days
1993
15 days
1994
17 days
1995
21 days
1996
11 days
1997
8 days
1998
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
46 years with a frost
Across 46 years with a frost, the median last spring frost at Hancock falls on 8 May and the median first autumn frost on 5 October, which leaves a median of 152 days between them.
Fitted over all years, the growing season changes by +3.8 days per decade at this station.
Frost dates and growing season at Hancock
Measure
Median, all years
Earliest period
Recent period (1964 to 1996)
Recent against earliest
Fitted trend
Last spring frost
8 May
n/a
5 May
n/a
-1.8 days per decade
First autumn frost
5 October
n/a
7 October
n/a
+2.0 days per decade
Growing days
152 days
n/a
156 days
n/a
+3.8 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
48 years, 1947 to 1996
A day with at least 56.7 mm (2.2 in) of rain is expected about once in 2 years. A day with at least 144.5 mm (5.7 in) of rain is expected about once in 100 years.
Rainfall return levels at Hancock: the daily rain expected about once in a given number of years
Expected about once in
A day with at least
Note
2 years
56.7 mm (2.2 in)
5 years
75.1 mm (3.0 in)
10 years
89.1 mm (3.5 in)
25 years
109.2 mm (4.3 in)
50 years
126.0 mm (5.0 in)
Longer than the 48 years of record
100 years
144.5 mm (5.7 in)
Longer than the 48 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, 48 years of values from 1947 to 1996.
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: 141.5 mm (5.6 in) in 1973; 109.2 mm (4.3 in) in 1952; 100.6 mm (4.0 in) in 1993.
Station Changes
1 suspected
One change was suspected in the annual mean temperature of Hancock, at 1981. Each is measured against neighbouring stations.
Relative to 5 neighbouring stations, the station's annual mean temperature from 1981 ran 0.2 C (0.4 F) higher than in the years before (possible change).
Suspected changes in the annual mean temperature at Hancock, against neighbouring stations
Year
Shift (C)
Shift (F)
Strength
Neighbours
1981
+0.2
+0.4
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 Hancock standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Hancock 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.