Record envelope, standing records and threshold days for Ridgely (USC00187575), Maryland, United States, with 31 years of record.
Key Facts for Ridgely
Ridgely (USC00187575) is a weather station in Maryland, United States at 38.95 latitude and -75.88 longitude, 21 m (69 ft) above sea level.
The station reports from 1922 to 1952, 31 years of record.
1,464 records set at Ridgely still stand.
Records are tracked for tmax, tmin, prcp: an element needs 30 years of data to be eligible.
Ridgely set a daily record high minimum temperature of 6.1 C (43.0 F) on 5 February 1952.
About the Station
Location: Maryland, United States, 38.95 latitude, -75.88 longitude.
Elevation: 21 m (69 ft).
Period of record: 1922 to 1952, 31 years.
Eligible elements: tmax, tmin, 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 Ridgely. 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 Ridgely, with 2026 drawn through them
Month
Highest record high
Lowest record low
2026 highest maximum
2026 lowest minimum
Jan
25.0 C (77.0 F)
-22.2 C (-8.0 F)
n/a
n/a
Feb
26.1 C (79.0 F)
-23.3 C (-9.9 F)
n/a
n/a
Mar
30.0 C (86.0 F)
-15.0 C (5.0 F)
n/a
n/a
Apr
32.2 C (90.0 F)
-9.4 C (15.1 F)
n/a
n/a
May
36.7 C (98.1 F)
-1.7 C (28.9 F)
n/a
n/a
Jun
40.0 C (104.0 F)
2.8 C (37.0 F)
n/a
n/a
Jul
42.2 C (108.0 F)
9.4 C (48.9 F)
n/a
n/a
Aug
40.0 C (104.0 F)
6.7 C (44.1 F)
n/a
n/a
Sep
36.1 C (97.0 F)
0.6 C (33.1 F)
n/a
n/a
Oct
36.1 C (97.0 F)
-4.4 C (24.1 F)
n/a
n/a
Nov
30.0 C (86.0 F)
-12.8 C (9.0 F)
n/a
n/a
Dec
22.2 C (72.0 F)
-15.0 C (5.0 F)
n/a
n/a
Which Years Hold Standing Records
1,464 standing records
Year with most
1,464 records at Ridgely still stand. 1934 holds the most, with 69.
Standing records at Ridgely by the year they were set
Year set
Standing records
1922
14
1923
63
1924
49
1925
65
1926
61
1927
68
1928
53
1929
64
1930
67
1931
33
1932
51
1933
54
1934
69
1935
53
1936
64
1937
46
1938
38
1939
49
1940
60
1941
48
1942
49
1943
36
1944
18
1945
45
1946
39
1947
49
1948
24
1949
50
1950
44
1951
35
1952
6
Wettest Day of Each Month
Sep: 191.3 mm (7.5 in)
The wettest day on record for each calendar month at Ridgely. The most was 191.3 mm (7.5 in) on 5 September 1935.
Record daily precipitation for each month at Ridgely
Month
Record daily precipitation (mm)
Date
Jan
60.5 mm (2.4 in)
3 January 1936
Feb
53.3 mm (2.1 in)
20 February 1924
Mar
62.2 mm (2.4 in)
29 March 1942
Apr
63.0 mm (2.5 in)
28 April 1928
May
60.5 mm (2.4 in)
3 May 1934
Jun
62.2 mm (2.4 in)
15 June 1932
Jul
100.3 mm (3.9 in)
31 July 1925
Aug
118.1 mm (4.6 in)
12 August 1928
Sep
191.3 mm (7.5 in)
5 September 1935
Oct
50.8 mm (2.0 in)
31 October 1949
Nov
73.7 mm (2.9 in)
17 November 1935
Dec
57.2 mm (2.3 in)
13 December 1941
Period of Record Coverage
1922 to 1952
Complete yearUnder 90 percent of days
31 years of record at Ridgely, 1922 to 1952. 5 years have data for under 90 percent of days and are left out of rankings: 1922, 1943, 1944, 1948, 1952.
Cooler than the station meanWarmer than the station mean
One stripe for each of 24 complete years at Ridgely, 1923 to 1951. Blue stripes are years cooler than the station's own mean of 13.3 C (55.9 F); red stripes are warmer. The coolest year was 1940, at 12.0 C (53.6 F), and the warmest was 1949, at 14.9 C (58.8 F). The strongest colour marks a difference of 1.6 C (2.9 F).
Annual mean temperature at Ridgely as warming stripes, 1923 to 1951
Year
Annual mean temperature
Difference from the station mean
1923
13.2 C
-0.12 C
1924
12.2 C
-1.15 C
1925
13.4 C
+0.06 C
1926
12.3 C
-1.01 C
1927
13.1 C
-0.21 C
1928
12.8 C
-0.47 C
1929
13.2 C
-0.14 C
1930
13.8 C
+0.45 C
1931
14.1 C
+0.82 C
1932
13.6 C
+0.33 C
1933
13.6 C
+0.26 C
1934
12.8 C
-0.48 C
1935
12.8 C
-0.47 C
1936
13.3 C
-0.04 C
1937
13.2 C
-0.14 C
1938
13.8 C
+0.45 C
1939
13.8 C
+0.52 C
1940
12.0 C
-1.29 C
1941
13.7 C
+0.41 C
1945
13.3 C
-0.04 C
1947
12.9 C
-0.45 C
1949
14.9 C
+1.60 C
1950
13.7 C
+0.41 C
1951
14.1 C
+0.80 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
1922 to 1952
Yearly extremes at Ridgely: the record and the median year
Measure
Record
Year of the record
Median year
Years with a value
Hottest day (TXx)
42.2 C (108.0 F)
1936
36.7 C (98.1 F)
31
Coldest night (TNn)
-23.3 C (-9.9 F)
1934
-13.9 C (7.0 F)
31
Wettest day (Rx1day)
191.3 mm (7.5 in)
1935
64.0 mm (2.5 in)
31
Wettest five days (Rx5day)
372.9 mm (14.7 in)
1935
101.9 mm (4.0 in)
31
Longest dry spell (CDD)
34 days
1941
16 days
31
Hottest day (TXx)
The hottest day of the year at Ridgely, 1922 to 1952. The record is 42.2 C (108.0 F) in 1936, marked on the chart; the median year is 36.7 C (98.1 F).
Hottest day (TXx) at Ridgely by year
Year
Hottest day (TXx)
1922
35.6 C (96.1 F)
1923
37.8 C (100.0 F)
1924
36.7 C (98.1 F)
1925
40.0 C (104.0 F)
1926
36.7 C (98.1 F)
1927
35.0 C (95.0 F)
1928
36.7 C (98.1 F)
1929
36.1 C (97.0 F)
1930
40.6 C (105.1 F)
1931
37.2 C (99.0 F)
1932
37.2 C (99.0 F)
1933
36.1 C (97.0 F)
1934
39.4 C (102.9 F)
1935
35.6 C (96.1 F)
1936
42.2 C (108.0 F)
1937
36.7 C (98.1 F)
1938
36.7 C (98.1 F)
1939
35.0 C (95.0 F)
1940
37.8 C (100.0 F)
1941
36.7 C (98.1 F)
1942
37.2 C (99.0 F)
1943
37.2 C (99.0 F)
1944
33.9 C (93.0 F)
1945
36.1 C (97.0 F)
1946
33.9 C (93.0 F)
1947
35.6 C (96.1 F)
1948
37.8 C (100.0 F)
1949
38.3 C (100.9 F)
1950
35.0 C (95.0 F)
1951
35.0 C (95.0 F)
1952
20.0 C (68.0 F)
Coldest night (TNn)
The coldest night of the year at Ridgely, 1922 to 1952. The record is -23.3 C (-9.9 F) in 1934, marked on the chart; the median year is -13.9 C (7.0 F).
Coldest night (TNn) at Ridgely by year
Year
Coldest night (TNn)
1922
-11.1 C (12.0 F)
1923
-12.2 C (10.0 F)
1924
-13.9 C (7.0 F)
1925
-16.7 C (1.9 F)
1926
-14.4 C (6.1 F)
1927
-14.4 C (6.1 F)
1928
-22.2 C (-8.0 F)
1929
-12.8 C (9.0 F)
1930
-16.7 C (1.9 F)
1931
-9.4 C (15.1 F)
1932
-14.4 C (6.1 F)
1933
-14.4 C (6.1 F)
1934
-23.3 C (-9.9 F)
1935
-22.2 C (-8.0 F)
1936
-21.1 C (-6.0 F)
1937
-9.4 C (15.1 F)
1938
-12.8 C (9.0 F)
1939
-14.4 C (6.1 F)
1940
-19.4 C (-2.9 F)
1941
-8.9 C (16.0 F)
1942
-20.6 C (-5.1 F)
1943
-11.7 C (10.9 F)
1944
-11.7 C (10.9 F)
1945
-15.0 C (5.0 F)
1946
-16.1 C (3.0 F)
1947
-13.3 C (8.1 F)
1948
-12.8 C (9.0 F)
1949
-9.4 C (15.1 F)
1950
-10.6 C (12.9 F)
1951
-11.7 C (10.9 F)
1952
-10.0 C (14.0 F)
Wettest day (Rx1day)
The wettest day of the year at Ridgely, 1922 to 1952. The record is 191.3 mm (7.5 in) in 1935, marked on the chart; the median year is 64.0 mm (2.5 in).
Wettest day (Rx1day) at Ridgely by year
Year
Wettest day (Rx1day)
1922
31.8 mm (1.3 in)
1923
48.3 mm (1.9 in)
1924
77.5 mm (3.1 in)
1925
100.3 mm (3.9 in)
1926
64.0 mm (2.5 in)
1927
42.2 mm (1.7 in)
1928
118.1 mm (4.6 in)
1929
47.0 mm (1.9 in)
1930
23.4 mm (0.9 in)
1931
71.1 mm (2.8 in)
1932
62.2 mm (2.4 in)
1933
102.1 mm (4.0 in)
1934
114.8 mm (4.5 in)
1935
191.3 mm (7.5 in)
1936
101.6 mm (4.0 in)
1937
47.0 mm (1.9 in)
1938
88.4 mm (3.5 in)
1939
104.6 mm (4.1 in)
1940
108.0 mm (4.3 in)
1941
57.2 mm (2.3 in)
1942
62.2 mm (2.4 in)
1943
47.0 mm (1.9 in)
1944
50.8 mm (2.0 in)
1945
69.3 mm (2.7 in)
1946
61.5 mm (2.4 in)
1947
51.3 mm (2.0 in)
1948
52.3 mm (2.1 in)
1949
73.4 mm (2.9 in)
1950
70.1 mm (2.8 in)
1951
79.5 mm (3.1 in)
1952
28.2 mm (1.1 in)
Wettest five days (Rx5day)
The wettest five days of the year at Ridgely, 1922 to 1952. The record is 372.9 mm (14.7 in) in 1935, marked on the chart; the median year is 101.9 mm (4.0 in).
Wettest five days (Rx5day) at Ridgely by year
Year
Wettest five days (Rx5day)
1922
77.8 mm (3.1 in)
1923
87.7 mm (3.5 in)
1924
77.5 mm (3.1 in)
1925
101.6 mm (4.0 in)
1926
107.7 mm (4.2 in)
1927
85.4 mm (3.4 in)
1928
205.3 mm (8.1 in)
1929
78.4 mm (3.1 in)
1930
51.8 mm (2.0 in)
1931
130.5 mm (5.1 in)
1932
127.4 mm (5.0 in)
1933
205.7 mm (8.1 in)
1934
145.3 mm (5.7 in)
1935
372.9 mm (14.7 in)
1936
122.7 mm (4.8 in)
1937
76.0 mm (3.0 in)
1938
188.6 mm (7.4 in)
1939
109.2 mm (4.3 in)
1940
135.2 mm (5.3 in)
1941
74.2 mm (2.9 in)
1942
101.9 mm (4.0 in)
1943
76.8 mm (3.0 in)
1944
90.0 mm (3.5 in)
1945
179.2 mm (7.1 in)
1946
67.9 mm (2.7 in)
1947
119.9 mm (4.7 in)
1948
97.8 mm (3.9 in)
1949
116.0 mm (4.6 in)
1950
156.4 mm (6.2 in)
1951
96.0 mm (3.8 in)
1952
53.3 mm (2.1 in)
Longest dry spell (CDD)
The longest dry spell of the year at Ridgely, 1922 to 1952. The record is 34 days in 1941, marked on the chart; the median year is 16 days.
Longest dry spell (CDD) at Ridgely by year
Year
Longest dry spell (CDD)
1922
24 days
1923
20 days
1924
27 days
1925
16 days
1926
15 days
1927
18 days
1928
16 days
1929
15 days
1930
27 days
1931
19 days
1932
16 days
1933
12 days
1934
19 days
1935
10 days
1936
13 days
1937
13 days
1938
15 days
1939
12 days
1940
11 days
1941
34 days
1942
15 days
1943
19 days
1944
15 days
1945
21 days
1946
21 days
1947
12 days
1948
12 days
1949
19 days
1950
15 days
1951
14 days
1952
21 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
24 years with a frost
Across 24 years with a frost, the median last spring frost at Ridgely falls on 17 April and the median first autumn frost on 24 October, which leaves a median of 187 days between them.
Frost dates and growing season at Ridgely
Measure
Median, all years
Earliest period
Recent period (1923 to 1951)
Recent against earliest
Fitted trend
Last spring frost
17 April
n/a
17 April
n/a
n/a
First autumn frost
24 October
n/a
24 October
n/a
n/a
Growing days
187 days
n/a
187 days
n/a
n/a
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.
Download the Data
Data for Ridgely standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Ridgely 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 2026-10-15 (15 October 2026). Records are computed by this site and are not official.