Prince Frederick 1 N Weather Records (USC00187325)

Record envelope, standing records and threshold days for Prince Frederick 1 N (USC00187325), Maryland, United States, with 78 years of record.

Key Facts for Prince Frederick 1 N

Prince Frederick 1 N (USC00187325) is a weather station in Maryland, United States at 38.55 latitude and -76.58 longitude, 43 m (141 ft) above sea level.
The station reports from 1899 to 1976, 78 years of record.
1,464 records set at Prince Frederick 1 N still stand.
Records are tracked for no element yet: an element needs 30 years of data to be eligible.

About the Station

Location: Maryland, United States, 38.55 latitude, -76.58 longitude.
Elevation: 43 m (141 ft).
Period of record: 1899 to 1976, 78 years.
Eligible elements: none yet.

Daily Record Envelope and 2026

0 days at or beyond a record

The band shows the record high and record low for each calendar day at Prince Frederick 1 N. 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 Prince Frederick 1 N, 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)	-21.7 C (-7.1 F)	n/a	n/a
Feb	25.6 C (78.1 F)	-18.3 C (-0.9 F)	n/a	n/a
Mar	28.9 C (84.0 F)	-12.8 C (9.0 F)	n/a	n/a
Apr	33.9 C (93.0 F)	-5.0 C (23.0 F)	n/a	n/a
May	35.6 C (96.1 F)	-1.1 C (30.0 F)	n/a	n/a
Jun	38.3 C (100.9 F)	3.3 C (37.9 F)	n/a	n/a
Jul	39.4 C (102.9 F)	10.0 C (50.0 F)	n/a	n/a
Aug	38.3 C (100.9 F)	7.2 C (45.0 F)	n/a	n/a
Sep	36.7 C (98.1 F)	1.1 C (34.0 F)	n/a	n/a
Oct	35.0 C (95.0 F)	-5.0 C (23.0 F)	n/a	n/a
Nov	29.4 C (84.9 F)	-12.2 C (10.0 F)	n/a	n/a
Dec	24.4 C (75.9 F)	-16.1 C (3.0 F)	n/a	n/a

Which Years Hold Standing Records

1,464 standing records

1,464 records at Prince Frederick 1 N still stand. 1954 holds the most, with 80.

Standing records at Prince Frederick 1 N by the year they were set
Year set	Standing records
1899	9
1900	14
1901	21
1902	1
1903	23
1904	43
1905	30
1906	26
1911	16
1912	25
1953	58
1954	80
1955	69
1956	60
1957	63
1958	56
1959	68
1960	74
1961	60
1962	43
1963	52
1964	59
1965	50
1966	42
1967	34
1969	23
1970	51
1971	48
1972	63
1973	48
1974	48
1975	40
1976	67

Wettest Day of Each Month

Aug: 188.7 mm (7.4 in)

The wettest day on record for each calendar month at Prince Frederick 1 N. The most was 188.7 mm (7.4 in) on 13 August 1955.

Record daily precipitation for each month at Prince Frederick 1 N
Month	Record daily precipitation (mm)	Date
Jan	71.1 mm (2.8 in)	14 January 1958
Feb	55.9 mm (2.2 in)	9 February 1906
Mar	64.5 mm (2.5 in)	15 March 1912
Apr	58.4 mm (2.3 in)	3 April 1901
May	74.7 mm (2.9 in)	29 May 1963
Jun	81.3 mm (3.2 in)	22 June 1972
Jul	101.6 mm (4.0 in)	30 July 1960
Aug	188.7 mm (7.4 in)	13 August 1955
Sep	128.3 mm (5.1 in)	12 September 1960
Oct	98.0 mm (3.9 in)	19 October 1966
Nov	53.6 mm (2.1 in)	7 November 1959
Dec	50.3 mm (2.0 in)	20 December 1957

Period of Record Coverage

1899 to 1976

33 years of record at Prince Frederick 1 N, 1899 to 1976. 15 years have data for under 90 percent of days and are left out of rankings: 1899, 1900, 1901, 1902, 1903, 1904, 1905, 1906 and others.

Days with data per year at Prince Frederick 1 N
Year	Days with data	Share of year	Complete
1899	84	23%	No
1900	98	27%	No
1901	176	48%	No
1902	5	1%	No
1903	188	52%	No
1904	195	53%	No
1905	176	48%	No
1906	189	52%	No
1911	123	34%	No
1912	190	52%	No
1953	336	92%	Yes
1954	358	98%	Yes
1955	357	98%	Yes
1956	356	97%	Yes
1957	359	98%	Yes
1958	351	96%	Yes
1959	350	96%	Yes
1960	359	98%	Yes
1961	344	94%	Yes
1962	304	83%	No
1963	333	91%	Yes
1964	327	89%	No
1965	338	93%	Yes
1966	310	85%	No
1967	232	64%	No
1969	214	59%	No
1970	365	100%	Yes
1971	364	100%	Yes
1972	365	100%	Yes
1973	364	100%	Yes
1974	364	100%	Yes
1975	364	100%	Yes
1976	366	100%	Yes

Latest Records

No records were set at this station in the latest data.

Climate Trend

17 complete years, 1954 to 1976

One stripe for each of 17 complete years at Prince Frederick 1 N, 1954 to 1976. Blue stripes are years cooler than the station's own mean of 13.4 C (56.1 F); red stripes are warmer. The coolest year was 1958, at 12.5 C (54.5 F), and the warmest was 1954, at 14.2 C (57.5 F). The strongest colour marks a difference of 0.9 C (1.6 F).

Annual mean temperature at Prince Frederick 1 N as warming stripes, 1954 to 1976
Year	Annual mean temperature	Difference from the station mean
1954	14.2 C	+0.83 C
1955	13.8 C	+0.44 C
1956	13.7 C	+0.35 C
1957	13.8 C	+0.46 C
1958	12.5 C	-0.88 C
1959	14.1 C	+0.77 C
1960	12.5 C	-0.88 C
1961	12.6 C	-0.80 C
1963	12.8 C	-0.56 C
1965	13.0 C	-0.36 C
1970	13.2 C	-0.21 C
1971	13.3 C	-0.02 C
1972	13.0 C	-0.39 C
1973	14.0 C	+0.63 C
1974	13.7 C	+0.33 C
1975	13.8 C	+0.45 C
1976	13.2 C	-0.13 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

1899 to 1976

Yearly extremes at Prince Frederick 1 N: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Hottest day (TXx)	39.4 C (102.9 F)	1954	35.0 C (95.0 F)	33
Coldest night (TNn)	-21.7 C (-7.1 F)	1912	-15.6 C (3.9 F)	33
Wettest day (Rx1day)	188.7 mm (7.4 in)	1955	62.3 mm (2.5 in)	32
Wettest five days (Rx5day)	301.3 mm (11.9 in)	1955	94.2 mm (3.7 in)	31
Longest dry spell (CDD)	33 days	1963	17 days	31

Hottest day (TXx)

The hottest day of the year at Prince Frederick 1 N, 1899 to 1976. The record is 39.4 C (102.9 F) in 1954, marked on the chart; the median year is 35.0 C (95.0 F).

Hottest day (TXx) at Prince Frederick 1 N by year
Year	Hottest day (TXx)
1899	33.9 C (93.0 F)
1900	33.9 C (93.0 F)
1901	35.6 C (96.1 F)
1902	6.7 C (44.1 F)
1903	33.3 C (91.9 F)
1904	36.1 C (97.0 F)
1905	36.1 C (97.0 F)
1906	35.0 C (95.0 F)
1911	37.2 C (99.0 F)
1912	36.7 C (98.1 F)
1953	38.3 C (100.9 F)
1954	39.4 C (102.9 F)
1955	36.7 C (98.1 F)
1956	35.0 C (95.0 F)
1957	37.8 C (100.0 F)
1958	33.9 C (93.0 F)
1959	38.3 C (100.9 F)
1960	35.0 C (95.0 F)
1961	34.4 C (93.9 F)
1962	35.6 C (96.1 F)
1963	36.7 C (98.1 F)
1964	35.6 C (96.1 F)
1965	33.9 C (93.0 F)
1966	37.2 C (99.0 F)
1967	32.8 C (91.0 F)
1969	36.7 C (98.1 F)
1970	33.9 C (93.0 F)
1971	33.9 C (93.0 F)
1972	35.0 C (95.0 F)
1973	35.0 C (95.0 F)
1974	33.3 C (91.9 F)
1975	35.0 C (95.0 F)
1976	34.4 C (93.9 F)

Coldest night (TNn)

The coldest night of the year at Prince Frederick 1 N, 1899 to 1976. The record is -21.7 C (-7.1 F) in 1912, marked on the chart; the median year is -15.6 C (3.9 F).

Coldest night (TNn) at Prince Frederick 1 N by year
Year	Coldest night (TNn)
1899	-2.2 C (28.0 F)
1900	-11.7 C (10.9 F)
1901	-12.8 C (9.0 F)
1902	-12.2 C (10.0 F)
1903	-15.6 C (3.9 F)
1904	-16.7 C (1.9 F)
1905	-17.8 C (0.0 F)
1906	-13.9 C (7.0 F)
1911	-5.0 C (23.0 F)
1912	-21.7 C (-7.1 F)
1953	-8.9 C (16.0 F)
1954	-12.8 C (9.0 F)
1955	-15.6 C (3.9 F)
1956	-9.4 C (15.1 F)
1957	-18.9 C (-2.0 F)
1958	-15.0 C (5.0 F)
1959	-16.7 C (1.9 F)
1960	-16.1 C (3.0 F)
1961	-17.8 C (0.0 F)
1962	-15.6 C (3.9 F)
1963	-16.7 C (1.9 F)
1964	-15.6 C (3.9 F)
1965	-17.8 C (0.0 F)
1966	-14.4 C (6.1 F)
1967	-14.4 C (6.1 F)
1969	-11.7 C (10.9 F)
1970	-20.6 C (-5.1 F)
1971	-18.3 C (-0.9 F)
1972	-17.2 C (1.0 F)
1973	-14.4 C (6.1 F)
1974	-13.3 C (8.1 F)
1975	-12.2 C (10.0 F)
1976	-15.6 C (3.9 F)

Wettest day (Rx1day)

The wettest day of the year at Prince Frederick 1 N, 1899 to 1976. The record is 188.7 mm (7.4 in) in 1955, marked on the chart; the median year is 62.3 mm (2.5 in).

Wettest day (Rx1day) at Prince Frederick 1 N by year
Year	Wettest day (Rx1day)
1899	n/a
1900	64.8 mm (2.6 in)
1901	58.4 mm (2.3 in)
1902	3.8 mm (0.15 in)
1903	50.5 mm (2.0 in)
1904	30.2 mm (1.2 in)
1905	55.9 mm (2.2 in)
1906	55.9 mm (2.2 in)
1911	75.4 mm (3.0 in)
1912	64.5 mm (2.5 in)
1953	44.5 mm (1.8 in)
1954	40.1 mm (1.6 in)
1955	188.7 mm (7.4 in)
1956	44.2 mm (1.7 in)
1957	50.3 mm (2.0 in)
1958	106.7 mm (4.2 in)
1959	87.9 mm (3.5 in)
1960	128.3 mm (5.1 in)
1961	61.0 mm (2.4 in)
1962	63.5 mm (2.5 in)
1963	74.7 mm (2.9 in)
1964	34.5 mm (1.4 in)
1965	57.4 mm (2.3 in)
1966	98.0 mm (3.9 in)
1967	71.6 mm (2.8 in)
1969	56.9 mm (2.2 in)
1970	48.0 mm (1.9 in)
1971	74.9 mm (2.9 in)
1972	81.3 mm (3.2 in)
1973	50.3 mm (2.0 in)
1974	69.6 mm (2.7 in)
1975	73.7 mm (2.9 in)
1976	72.9 mm (2.9 in)

Wettest five days (Rx5day)

The wettest five days of the year at Prince Frederick 1 N, 1899 to 1976. The record is 301.3 mm (11.9 in) in 1955, marked on the chart; the median year is 94.2 mm (3.7 in).

Wettest five days (Rx5day) at Prince Frederick 1 N by year
Year	Wettest five days (Rx5day)
1899	n/a
1900	121.0 mm (4.8 in)
1901	71.3 mm (2.8 in)
1902	n/a
1903	77.5 mm (3.1 in)
1904	49.5 mm (1.9 in)
1905	69.3 mm (2.7 in)
1906	67.4 mm (2.7 in)
1911	122.9 mm (4.8 in)
1912	116.8 mm (4.6 in)
1953	71.5 mm (2.8 in)
1954	72.4 mm (2.9 in)
1955	301.3 mm (11.9 in)
1956	80.6 mm (3.2 in)
1957	94.2 mm (3.7 in)
1958	167.7 mm (6.6 in)
1959	124.0 mm (4.9 in)
1960	146.3 mm (5.8 in)
1961	71.7 mm (2.8 in)
1962	102.9 mm (4.1 in)
1963	138.0 mm (5.4 in)
1964	77.4 mm (3.0 in)
1965	60.7 mm (2.4 in)
1966	110.2 mm (4.3 in)
1967	143.0 mm (5.6 in)
1969	86.9 mm (3.4 in)
1970	88.2 mm (3.5 in)
1971	110.5 mm (4.4 in)
1972	144.0 mm (5.7 in)
1973	86.1 mm (3.4 in)
1974	124.8 mm (4.9 in)
1975	170.0 mm (6.7 in)
1976	72.9 mm (2.9 in)

Longest dry spell (CDD)

The longest dry spell of the year at Prince Frederick 1 N, 1899 to 1976. The record is 33 days in 1963, marked on the chart; the median year is 17 days.

Longest dry spell (CDD) at Prince Frederick 1 N by year
Year	Longest dry spell (CDD)
1899	n/a
1900	13 days
1901	22 days
1902	n/a
1903	14 days
1904	15 days
1905	10 days
1906	17 days
1911	10 days
1912	17 days
1953	27 days
1954	24 days
1955	17 days
1956	20 days
1957	12 days
1958	17 days
1959	25 days
1960	19 days
1961	22 days
1962	14 days
1963	33 days
1964	28 days
1965	24 days
1966	20 days
1967	18 days
1969	16 days
1970	16 days
1971	15 days
1972	13 days
1973	26 days
1974	19 days
1975	16 days
1976	26 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 Prince Frederick 1 N standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Prince Frederick 1 N 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 2026-10-17 (17 October 2026). Records are computed by this site and are not official.

Data as of 2025-12-31. Last revised 31 December 2025 (2025-12-31).