Record envelope, standing records and threshold days for Hagerstown (USC00183975), Maryland, United States, with 99 years of record.
Key Facts for Hagerstown
Hagerstown (USC00183975) is a weather station in Maryland, United States at 39.65 latitude and -77.73 longitude, 201 m (660 ft) above sea level.
The station reports from 1895 to 1993, 99 years of record.
1,464 records set at Hagerstown still stand.
Records are tracked for tmax, tmin, prcp, snow, snwd: an element needs 30 years of data to be eligible.
Hagerstown set a daily record precipitation of 19.3 mm (0.8 in) on 12 October 1993.
About the Station
Location: Maryland, United States, 39.65 latitude, -77.73 longitude.
Elevation: 201 m (660 ft).
Period of record: 1895 to 1993, 99 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 Hagerstown. 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 Hagerstown, with 2026 drawn through them
Month
Highest record high
Lowest record low
2026 highest maximum
2026 lowest minimum
Jan
25.6 C (78.1 F)
-27.2 C (-17.0 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)
-17.8 C (0.0 F)
n/a
n/a
Apr
35.0 C (95.0 F)
-7.8 C (18.0 F)
n/a
n/a
May
37.2 C (99.0 F)
-1.1 C (30.0 F)
n/a
n/a
Jun
37.2 C (99.0 F)
2.8 C (37.0 F)
n/a
n/a
Jul
40.6 C (105.1 F)
5.6 C (42.1 F)
n/a
n/a
Aug
39.4 C (102.9 F)
4.4 C (39.9 F)
n/a
n/a
Sep
37.2 C (99.0 F)
-1.7 C (28.9 F)
n/a
n/a
Oct
33.9 C (93.0 F)
-7.8 C (18.0 F)
n/a
n/a
Nov
28.9 C (84.0 F)
-14.4 C (6.1 F)
n/a
n/a
Dec
25.6 C (78.1 F)
-21.1 C (-6.0 F)
n/a
n/a
Which Years Hold Standing Records
1,464 standing records
Year with most
1,464 records at Hagerstown still stand. 1900 holds the most, with 50.
Standing records at Hagerstown by the year they were set
Year set
Standing records
1895
33
1896
45
1897
16
1898
21
1899
21
1900
50
1901
25
1947
9
1948
29
1949
35
1950
34
1951
34
1952
28
1953
21
1954
30
1955
24
1956
30
1957
29
1958
25
1959
28
1960
44
1961
31
1962
13
1963
30
1964
34
1965
23
1966
25
1967
35
1968
24
1969
22
1970
36
1971
14
1972
24
1973
19
1974
37
1975
24
1976
31
1977
34
1978
18
1979
27
1980
16
1981
17
1982
25
1983
26
1984
36
1985
23
1986
26
1987
19
1988
33
1989
29
1990
31
1991
37
1992
12
1993
22
All-Time Record Progression
6 new records
6 all-time records were set at Hagerstown between 17 January 1977 and 19 September 1991. Each dot is a new record.
When Hagerstown set new all-time records
Date
Kind
Detail
1977-01-17
Record low minimum temperature
Record low minimum temperature -27.2 C (-17.0 F)
1983-02-11
Record daily snowfall
Record daily snowfall 53.3 cm (21.0 in)
1983-02-11
Record snow depth
Record snow depth 53.3 cm (21.0 in)
1983-02-12
Record snow depth
Record snow depth 66.0 cm (26.0 in)
1989-07-11
Record high minimum temperature
Record high minimum temperature 26.7 C (80.1 F)
1991-09-19
Record daily precipitation
Record daily precipitation 179.6 mm (7.1 in)
Wettest Day of Each Month
Sep: 179.6 mm (7.1 in)
The wettest day on record for each calendar month at Hagerstown. The most was 179.6 mm (7.1 in) on 19 September 1991.
Record daily precipitation for each month at Hagerstown
Month
Record daily precipitation (mm)
Date
Jan
57.2 mm (2.3 in)
1 January 1948
Feb
74.9 mm (2.9 in)
14 February 1984
Mar
78.7 mm (3.1 in)
29 March 1984
Apr
87.6 mm (3.4 in)
22 April 1992
May
63.5 mm (2.5 in)
22 May 1901
Jun
80.3 mm (3.2 in)
22 June 1972
Jul
122.2 mm (4.8 in)
20 July 1956
Aug
89.7 mm (3.5 in)
11 August 1984
Sep
179.6 mm (7.1 in)
19 September 1991
Oct
112.0 mm (4.4 in)
13 October 1990
Nov
64.3 mm (2.5 in)
21 November 1952
Dec
62.2 mm (2.4 in)
11 December 1992
Period of Record Coverage
1895 to 1993
Complete yearUnder 90 percent of days
54 years of record at Hagerstown, 1895 to 1993. 11 years have data for under 90 percent of days and are left out of rankings: 1895, 1898, 1899, 1901, 1947, 1987, 1988, 1989 and others.
Cooler than the station meanWarmer than the station mean
One stripe for each of 40 complete years at Hagerstown, 1896 to 1992. Blue stripes are years cooler than the station's own mean of 12.1 C (53.8 F); red stripes are warmer. The coolest year was 1961, at 11.0 C (51.8 F), and the warmest was 1949, at 13.3 C (56.0 F). The strongest colour marks a difference of 1.3 C (2.3 F).
Annual mean temperature at Hagerstown as warming stripes, 1896 to 1992
Year
Annual mean temperature
Difference from the station mean
1896
12.7 C
+0.57 C
1900
13.1 C
+1.00 C
1948
12.1 C
+0.04 C
1949
13.3 C
+1.25 C
1950
11.8 C
-0.27 C
1951
12.2 C
+0.13 C
1952
12.6 C
+0.53 C
1953
13.2 C
+1.13 C
1954
12.3 C
+0.18 C
1955
12.0 C
-0.09 C
1957
12.5 C
+0.36 C
1958
11.1 C
-0.99 C
1959
12.4 C
+0.34 C
1961
11.0 C
-1.11 C
1962
11.6 C
-0.49 C
1963
11.7 C
-0.35 C
1964
12.3 C
+0.23 C
1965
12.3 C
+0.25 C
1966
11.9 C
-0.23 C
1967
11.5 C
-0.59 C
1968
12.0 C
-0.05 C
1969
11.8 C
-0.29 C
1970
12.1 C
+0.03 C
1971
12.1 C
0.00 C
1972
11.6 C
-0.45 C
1973
12.8 C
+0.74 C
1974
12.5 C
+0.40 C
1975
12.3 C
+0.21 C
1976
11.3 C
-0.75 C
1977
11.7 C
-0.35 C
1978
11.2 C
-0.89 C
1979
11.7 C
-0.42 C
1980
11.9 C
-0.15 C
1981
11.8 C
-0.31 C
1982
12.2 C
+0.07 C
1983
12.4 C
+0.32 C
1984
12.3 C
+0.23 C
1985
12.7 C
+0.56 C
1988
12.3 C
+0.18 C
1992
11.2 C
-0.85 C
The annual mean temperature here has fallen by 0.11 C (0.02 to 0.20) per decade over 1896 to 1992. In Fahrenheit: 0.20 F (0.04 to 0.35) per decade. The slope is a straight line fitted to 40 complete years; the brackets give its 95 percent interval.
Fitted temperature trends per decade at Hagerstown
Measure
Per decade (C)
Per decade (F)
Period
Complete years
Reading
Annual mean temperature
-0.11 C (-0.20 to -0.02) per decade
-0.20 F (-0.35 to -0.04) per decade
1896 to 1992
40
Fall
Mean daily maximum
-0.1 C (-0.2 to -0.1) per decade
-0.3 F (-0.4 to -0.1) per decade
1896 to 1992
40
Fall
Mean daily minimum
-0.07 C (-0.18 to 0.03) per decade
-0.1 F (-0.3 to 0.1) per decade
1896 to 1992
40
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
1895 to 1993
Yearly extremes at Hagerstown: 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)
1900
36.1 C (97.0 F)
54
Coldest night (TNn)
-27.2 C (-17.0 F)
1977
-17.2 C (1.0 F)
54
Wettest day (Rx1day)
179.6 mm (7.1 in)
1991
55.3 mm (2.2 in)
54
Wettest five days (Rx5day)
188.2 mm (7.4 in)
1975
77.4 mm (3.0 in)
54
Longest dry spell (CDD)
29 days
1952
18 days
54
Hottest day (TXx)
The hottest day of the year at Hagerstown, 1895 to 1993. The record is 40.6 C (105.1 F) in 1900, marked on the chart; the median year is 36.1 C (97.0 F).
Hottest day (TXx) at Hagerstown by year
Year
Hottest day (TXx)
1895
37.8 C (100.0 F)
1896
36.1 C (97.0 F)
1897
36.1 C (97.0 F)
1898
33.3 C (91.9 F)
1899
29.4 C (84.9 F)
1900
40.6 C (105.1 F)
1901
38.9 C (102.0 F)
1947
31.1 C (88.0 F)
1948
37.8 C (100.0 F)
1949
37.8 C (100.0 F)
1950
35.6 C (96.1 F)
1951
35.0 C (95.0 F)
1952
36.1 C (97.0 F)
1953
37.8 C (100.0 F)
1954
40.0 C (104.0 F)
1955
37.8 C (100.0 F)
1956
35.6 C (96.1 F)
1957
37.8 C (100.0 F)
1958
33.9 C (93.0 F)
1959
37.2 C (99.0 F)
1960
35.0 C (95.0 F)
1961
35.0 C (95.0 F)
1962
37.8 C (100.0 F)
1963
36.1 C (97.0 F)
1964
36.7 C (98.1 F)
1965
36.7 C (98.1 F)
1966
38.3 C (100.9 F)
1967
33.9 C (93.0 F)
1968
36.1 C (97.0 F)
1969
36.7 C (98.1 F)
1970
34.4 C (93.9 F)
1971
34.4 C (93.9 F)
1972
35.0 C (95.0 F)
1973
35.6 C (96.1 F)
1974
33.3 C (91.9 F)
1975
35.0 C (95.0 F)
1976
33.3 C (91.9 F)
1977
38.3 C (100.9 F)
1978
35.0 C (95.0 F)
1979
34.4 C (93.9 F)
1980
38.3 C (100.9 F)
1981
35.0 C (95.0 F)
1982
34.4 C (93.9 F)
1983
39.4 C (102.9 F)
1984
37.2 C (99.0 F)
1985
35.6 C (96.1 F)
1986
37.2 C (99.0 F)
1987
36.7 C (98.1 F)
1988
40.0 C (104.0 F)
1989
34.4 C (93.9 F)
1990
37.2 C (99.0 F)
1991
38.3 C (100.9 F)
1992
35.0 C (95.0 F)
1993
38.3 C (100.9 F)
Coldest night (TNn)
The coldest night of the year at Hagerstown, 1895 to 1993. The record is -27.2 C (-17.0 F) in 1977, marked on the chart; the median year is -17.2 C (1.0 F).
Coldest night (TNn) at Hagerstown by year
Year
Coldest night (TNn)
1895
-17.2 C (1.0 F)
1896
-17.2 C (1.0 F)
1897
-15.6 C (3.9 F)
1898
-16.1 C (3.0 F)
1899
-25.6 C (-14.1 F)
1900
-17.8 C (0.0 F)
1901
-14.4 C (6.1 F)
1947
-9.4 C (15.1 F)
1948
-20.6 C (-5.1 F)
1949
-12.2 C (10.0 F)
1950
-17.2 C (1.0 F)
1951
-16.7 C (1.9 F)
1952
-13.9 C (7.0 F)
1953
-10.0 C (14.0 F)
1954
-15.0 C (5.0 F)
1955
-17.8 C (0.0 F)
1956
-11.7 C (10.9 F)
1957
-17.8 C (0.0 F)
1958
-17.2 C (1.0 F)
1959
-15.0 C (5.0 F)
1960
-20.0 C (-4.0 F)
1961
-22.8 C (-9.0 F)
1962
-17.8 C (0.0 F)
1963
-20.6 C (-5.1 F)
1964
-16.7 C (1.9 F)
1965
-17.2 C (1.0 F)
1966
-17.8 C (0.0 F)
1967
-17.2 C (1.0 F)
1968
-21.7 C (-7.1 F)
1969
-15.6 C (3.9 F)
1970
-20.0 C (-4.0 F)
1971
-17.2 C (1.0 F)
1972
-20.0 C (-4.0 F)
1973
-15.6 C (3.9 F)
1974
-12.2 C (10.0 F)
1975
-16.7 C (1.9 F)
1976
-17.2 C (1.0 F)
1977
-27.2 C (-17.0 F)
1978
-17.8 C (0.0 F)
1979
-20.6 C (-5.1 F)
1980
-15.6 C (3.9 F)
1981
-17.8 C (0.0 F)
1982
-24.4 C (-11.9 F)
1983
-21.1 C (-6.0 F)
1984
-22.2 C (-8.0 F)
1985
-24.4 C (-11.9 F)
1986
-15.0 C (5.0 F)
1987
-18.3 C (-0.9 F)
1988
-17.8 C (0.0 F)
1989
-18.9 C (-2.0 F)
1990
-13.9 C (7.0 F)
1991
-11.7 C (10.9 F)
1992
-13.3 C (8.1 F)
1993
-17.2 C (1.0 F)
Wettest day (Rx1day)
The wettest day of the year at Hagerstown, 1895 to 1993. The record is 179.6 mm (7.1 in) in 1991, marked on the chart; the median year is 55.3 mm (2.2 in).
Wettest day (Rx1day) at Hagerstown by year
Year
Wettest day (Rx1day)
1895
46.7 mm (1.8 in)
1896
55.9 mm (2.2 in)
1897
53.8 mm (2.1 in)
1898
34.3 mm (1.4 in)
1899
34.8 mm (1.4 in)
1900
54.6 mm (2.1 in)
1901
65.0 mm (2.6 in)
1947
20.1 mm (0.8 in)
1948
57.2 mm (2.3 in)
1949
86.4 mm (3.4 in)
1950
52.1 mm (2.1 in)
1951
51.1 mm (2.0 in)
1952
74.2 mm (2.9 in)
1953
48.5 mm (1.9 in)
1954
47.5 mm (1.9 in)
1955
70.4 mm (2.8 in)
1956
122.2 mm (4.8 in)
1957
42.2 mm (1.7 in)
1958
41.7 mm (1.6 in)
1959
49.8 mm (2.0 in)
1960
46.5 mm (1.8 in)
1961
41.9 mm (1.6 in)
1962
60.2 mm (2.4 in)
1963
48.0 mm (1.9 in)
1964
38.6 mm (1.5 in)
1965
62.2 mm (2.4 in)
1966
110.0 mm (4.3 in)
1967
57.2 mm (2.3 in)
1968
57.9 mm (2.3 in)
1969
57.2 mm (2.3 in)
1970
70.1 mm (2.8 in)
1971
85.6 mm (3.4 in)
1972
80.3 mm (3.2 in)
1973
89.9 mm (3.5 in)
1974
56.6 mm (2.2 in)
1975
79.5 mm (3.1 in)
1976
95.3 mm (3.8 in)
1977
39.6 mm (1.6 in)
1978
53.8 mm (2.1 in)
1979
43.2 mm (1.7 in)
1980
54.6 mm (2.1 in)
1981
45.2 mm (1.8 in)
1982
46.5 mm (1.8 in)
1983
63.5 mm (2.5 in)
1984
89.7 mm (3.5 in)
1985
41.7 mm (1.6 in)
1986
48.8 mm (1.9 in)
1987
33.8 mm (1.3 in)
1988
83.6 mm (3.3 in)
1989
59.4 mm (2.3 in)
1990
112.0 mm (4.4 in)
1991
179.6 mm (7.1 in)
1992
87.6 mm (3.4 in)
1993
52.6 mm (2.1 in)
Wettest five days (Rx5day)
The wettest five days of the year at Hagerstown, 1895 to 1993. The record is 188.2 mm (7.4 in) in 1975, marked on the chart; the median year is 77.4 mm (3.0 in).
Wettest five days (Rx5day) at Hagerstown by year
Year
Wettest five days (Rx5day)
1895
72.0 mm (2.8 in)
1896
89.5 mm (3.5 in)
1897
74.9 mm (2.9 in)
1898
61.3 mm (2.4 in)
1899
60.9 mm (2.4 in)
1900
68.6 mm (2.7 in)
1901
78.0 mm (3.1 in)
1947
57.0 mm (2.2 in)
1948
63.6 mm (2.5 in)
1949
116.1 mm (4.6 in)
1950
73.6 mm (2.9 in)
1951
93.0 mm (3.7 in)
1952
135.5 mm (5.3 in)
1953
67.6 mm (2.7 in)
1954
77.2 mm (3.0 in)
1955
93.2 mm (3.7 in)
1956
146.1 mm (5.8 in)
1957
66.7 mm (2.6 in)
1958
66.0 mm (2.6 in)
1959
73.4 mm (2.9 in)
1960
67.8 mm (2.7 in)
1961
56.3 mm (2.2 in)
1962
61.5 mm (2.4 in)
1963
72.6 mm (2.9 in)
1964
70.5 mm (2.8 in)
1965
65.3 mm (2.6 in)
1966
120.2 mm (4.7 in)
1967
80.9 mm (3.2 in)
1968
77.5 mm (3.1 in)
1969
62.0 mm (2.4 in)
1970
102.3 mm (4.0 in)
1971
102.1 mm (4.0 in)
1972
165.4 mm (6.5 in)
1973
102.3 mm (4.0 in)
1974
65.0 mm (2.6 in)
1975
188.2 mm (7.4 in)
1976
139.0 mm (5.5 in)
1977
67.6 mm (2.7 in)
1978
99.5 mm (3.9 in)
1979
86.4 mm (3.4 in)
1980
67.0 mm (2.6 in)
1981
72.1 mm (2.8 in)
1982
83.3 mm (3.3 in)
1983
83.3 mm (3.3 in)
1984
115.9 mm (4.6 in)
1985
71.2 mm (2.8 in)
1986
59.0 mm (2.3 in)
1987
77.5 mm (3.1 in)
1988
102.9 mm (4.1 in)
1989
106.6 mm (4.2 in)
1990
155.7 mm (6.1 in)
1991
182.2 mm (7.2 in)
1992
95.5 mm (3.8 in)
1993
55.6 mm (2.2 in)
Longest dry spell (CDD)
The longest dry spell of the year at Hagerstown, 1895 to 1993. The record is 29 days in 1952, marked on the chart; the median year is 18 days.
Longest dry spell (CDD) at Hagerstown by year
Year
Longest dry spell (CDD)
1895
20 days
1896
18 days
1897
26 days
1898
23 days
1899
23 days
1900
18 days
1901
11 days
1947
27 days
1948
13 days
1949
20 days
1950
16 days
1951
19 days
1952
29 days
1953
23 days
1954
12 days
1955
22 days
1956
15 days
1957
17 days
1958
16 days
1959
14 days
1960
13 days
1961
14 days
1962
20 days
1963
27 days
1964
27 days
1965
19 days
1966
18 days
1967
12 days
1968
26 days
1969
17 days
1970
17 days
1971
13 days
1972
14 days
1973
26 days
1974
19 days
1975
12 days
1976
21 days
1977
20 days
1978
16 days
1979
16 days
1980
15 days
1981
19 days
1982
15 days
1983
18 days
1984
17 days
1985
15 days
1986
21 days
1987
23 days
1988
29 days
1989
15 days
1990
16 days
1991
28 days
1992
20 days
1993
18 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
40 years with a frost
Across 40 years with a frost, the median last spring frost at Hagerstown falls on 14 April and the median first autumn frost on 20 October, which leaves a median of 189 days between them.
Fitted over all years, the growing season changes by +1.3 days per decade at this station.
Frost dates and growing season at Hagerstown
Measure
Median, all years
Earliest period
Recent period (1957 to 1992)
Recent against earliest
Fitted trend
Last spring frost
14 April
n/a
14 April
n/a
-0.2 days per decade
First autumn frost
20 October
n/a
22 October
n/a
+1.1 days per decade
Growing days
189 days
n/a
190 days
n/a
+1.3 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
46 years, 1896 to 1992
A day with at least 58.5 mm (2.3 in) of rain is expected about once in 2 years. A day with at least 179.4 mm (7.1 in) of rain is expected about once in 100 years.
Rainfall return levels at Hagerstown: the daily rain expected about once in a given number of years
Expected about once in
A day with at least
Note
2 years
58.5 mm (2.3 in)
5 years
79.3 mm (3.1 in)
10 years
96.8 mm (3.8 in)
25 years
124.3 mm (4.9 in)
50 years
149.5 mm (5.9 in)
Longer than the 46 years of record
100 years
179.4 mm (7.1 in)
Longer than the 46 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, 46 years of values from 1896 to 1992.
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: 179.6 mm (7.1 in) in 1991; 122.2 mm (4.8 in) in 1956; 112.0 mm (4.4 in) in 1990.
Station Changes
2 suspected
2 changes were suspected in the annual mean temperature of Hagerstown, at 1962 and 1967. Each is measured against neighbouring stations.
Relative to 5 neighbouring stations, the station's annual mean temperature from 1962 ran 0.4 C (0.8 F) higher than in the years before (possible change).
Relative to 5 neighbouring stations, the station's annual mean temperature from 1967 ran 0.2 C (0.4 F) lower than in the years before (possible change).
Suspected changes in the annual mean temperature at Hagerstown, against neighbouring stations
Year
Shift (C)
Shift (F)
Strength
Neighbours
1962
+0.4
+0.8
possible
5
1967
-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 Hagerstown standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Hagerstown 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.