Waldorf Police Barrack Weather Records (USC00189195)

Record envelope, standing records and threshold days for Waldorf Police Barrack (USC00189195), Maryland, United States, with 30 years of record.

Key Facts for Waldorf Police Barrack

Waldorf Police Barrack (USC00189195) is a weather station in Maryland, United States at 38.65 latitude and -76.88 longitude, 64 m (210 ft) above sea level.
The station reports from 1948 to 1977, 30 years of record.
1,464 records set at Waldorf Police Barrack 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, 38.65 latitude, -76.88 longitude.
Elevation: 64 m (210 ft).
Period of record: 1948 to 1977, 30 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 Waldorf Police Barrack. 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 Waldorf Police Barrack, 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)	-22.2 C (-8.0 F)	n/a	n/a
Feb	25.0 C (77.0 F)	-18.3 C (-0.9 F)	n/a	n/a
Mar	30.6 C (87.1 F)	-15.6 C (3.9 F)	n/a	n/a
Apr	35.0 C (95.0 F)	-6.7 C (19.9 F)	n/a	n/a
May	36.7 C (98.1 F)	-2.2 C (28.0 F)	n/a	n/a
Jun	38.3 C (100.9 F)	4.4 C (39.9 F)	n/a	n/a
Jul	39.4 C (102.9 F)	7.8 C (46.0 F)	n/a	n/a
Aug	38.3 C (100.9 F)	4.4 C (39.9 F)	n/a	n/a
Sep	40.0 C (104.0 F)	0.0 C (32.0 F)	n/a	n/a
Oct	35.0 C (95.0 F)	-6.1 C (21.0 F)	n/a	n/a
Nov	30.0 C (86.0 F)	-11.7 C (10.9 F)	n/a	n/a
Dec	23.9 C (75.0 F)	-18.9 C (-2.0 F)	n/a	n/a

Which Years Hold Standing Records

1,464 standing records

1,464 records at Waldorf Police Barrack still stand. 1950 holds the most, with 73.

Standing records at Waldorf Police Barrack by the year they were set
Year set	Standing records
1948	26
1949	43
1950	73
1951	57
1952	52
1953	60
1954	71
1955	41
1956	57
1957	51
1958	51
1959	68
1960	72
1961	51
1962	40
1963	57
1964	53
1965	56
1966	45
1967	54
1968	32
1969	33
1970	44
1971	39
1972	47
1973	40
1974	43
1975	33
1976	46
1977	29

Wettest Day of Each Month

Aug: 163.8 mm (6.4 in)

The wettest day on record for each calendar month at Waldorf Police Barrack. The most was 163.8 mm (6.4 in) on 13 August 1955.

Record daily precipitation for each month at Waldorf Police Barrack
Month	Record daily precipitation (mm)	Date
Jan	51.3 mm (2.0 in)	27 January 1976
Feb	45.7 mm (1.8 in)	2 February 1973
Mar	50.8 mm (2.0 in)	30 March 1974
Apr	51.8 mm (2.0 in)	14 April 1970
May	78.5 mm (3.1 in)	30 May 1971
Jun	88.9 mm (3.5 in)	22 June 1972
Jul	58.4 mm (2.3 in)	31 July 1949
Aug	163.8 mm (6.4 in)	13 August 1955
Sep	116.8 mm (4.6 in)	11 September 1950
Oct	95.0 mm (3.7 in)	14 October 1955
Nov	61.5 mm (2.4 in)	7 November 1963
Dec	54.6 mm (2.1 in)	30 December 1948

Period of Record Coverage

1948 to 1977

30 years of record at Waldorf Police Barrack, 1948 to 1977. 2 years have data for under 90 percent of days and are left out of rankings: 1948, 1977.

Days with data per year at Waldorf Police Barrack
Year	Days with data	Share of year	Complete
1948	153	42%	No
1949	335	92%	Yes
1950	363	99%	Yes
1951	363	99%	Yes
1952	365	100%	Yes
1953	329	90%	Yes
1954	354	97%	Yes
1955	362	99%	Yes
1956	365	100%	Yes
1957	350	96%	Yes
1958	359	98%	Yes
1959	363	99%	Yes
1960	365	100%	Yes
1961	359	98%	Yes
1962	363	99%	Yes
1963	363	99%	Yes
1964	366	100%	Yes
1965	365	100%	Yes
1966	365	100%	Yes
1967	365	100%	Yes
1968	333	91%	Yes
1969	334	92%	Yes
1970	362	99%	Yes
1971	363	99%	Yes
1972	364	99%	Yes
1973	358	98%	Yes
1974	364	100%	Yes
1975	362	99%	Yes
1976	357	98%	Yes
1977	265	73%	No

Latest Records

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

Climate Trend

24 complete years, 1950 to 1976

One stripe for each of 24 complete years at Waldorf Police Barrack, 1950 to 1976. Blue stripes are years cooler than the station's own mean of 13.3 C (56.0 F); red stripes are warmer. The coolest year was 1958, at 11.9 C (53.5 F), and the warmest was 1973, at 14.6 C (58.3 F). The strongest colour marks a difference of 1.4 C (2.5 F).

Annual mean temperature at Waldorf Police Barrack as warming stripes, 1950 to 1976
Year	Annual mean temperature	Difference from the station mean
1950	13.1 C	-0.21 C
1951	13.6 C	+0.25 C
1952	13.7 C	+0.37 C
1954	13.8 C	+0.44 C
1955	13.4 C	+0.05 C
1956	13.5 C	+0.19 C
1957	13.4 C	+0.03 C
1958	11.9 C	-1.40 C
1959	13.9 C	+0.55 C
1960	12.2 C	-1.15 C
1961	12.9 C	-0.48 C
1962	12.4 C	-0.92 C
1963	12.8 C	-0.51 C
1964	13.2 C	-0.13 C
1965	13.1 C	-0.21 C
1966	12.8 C	-0.57 C
1967	12.9 C	-0.42 C
1970	13.5 C	+0.13 C
1971	13.9 C	+0.52 C
1972	13.6 C	+0.22 C
1973	14.6 C	+1.25 C
1974	14.2 C	+0.81 C
1975	14.2 C	+0.84 C
1976	13.6 C	+0.24 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

1948 to 1977

Yearly extremes at Waldorf Police Barrack: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Hottest day (TXx)	40.0 C (104.0 F)	1953	36.7 C (98.1 F)	30
Coldest night (TNn)	-22.2 C (-8.0 F)	1965	-16.1 C (3.0 F)	30
Wettest day (Rx1day)	163.8 mm (6.4 in)	1955	54.0 mm (2.1 in)	30
Wettest five days (Rx5day)	265.3 mm (10.4 in)	1950	85.1 mm (3.4 in)	30
Longest dry spell (CDD)	31 days	1974	19 days	30

Hottest day (TXx)

The hottest day of the year at Waldorf Police Barrack, 1948 to 1977. The record is 40.0 C (104.0 F) in 1953, marked on the chart; the median year is 36.7 C (98.1 F).

Hottest day (TXx) at Waldorf Police Barrack by year
Year	Hottest day (TXx)
1948	37.8 C (100.0 F)
1949	37.2 C (99.0 F)
1950	35.6 C (96.1 F)
1951	36.1 C (97.0 F)
1952	38.3 C (100.9 F)
1953	40.0 C (104.0 F)
1954	39.4 C (102.9 F)
1955	37.8 C (100.0 F)
1956	36.7 C (98.1 F)
1957	39.4 C (102.9 F)
1958	36.1 C (97.0 F)
1959	37.8 C (100.0 F)
1960	36.7 C (98.1 F)
1961	36.1 C (97.0 F)
1962	36.7 C (98.1 F)
1963	36.7 C (98.1 F)
1964	37.8 C (100.0 F)
1965	36.7 C (98.1 F)
1966	38.3 C (100.9 F)
1967	34.4 C (93.9 F)
1968	36.1 C (97.0 F)
1969	37.8 C (100.0 F)
1970	35.6 C (96.1 F)
1971	35.6 C (96.1 F)
1972	37.2 C (99.0 F)
1973	36.7 C (98.1 F)
1974	36.7 C (98.1 F)
1975	36.7 C (98.1 F)
1976	35.6 C (96.1 F)
1977	37.8 C (100.0 F)

Coldest night (TNn)

The coldest night of the year at Waldorf Police Barrack, 1948 to 1977. The record is -22.2 C (-8.0 F) in 1965, marked on the chart; the median year is -16.1 C (3.0 F).

Coldest night (TNn) at Waldorf Police Barrack by year
Year	Coldest night (TNn)
1948	-13.9 C (7.0 F)
1949	-13.3 C (8.1 F)
1950	-13.3 C (8.1 F)
1951	-16.1 C (3.0 F)
1952	-12.8 C (9.0 F)
1953	-9.4 C (15.1 F)
1954	-15.0 C (5.0 F)
1955	-16.1 C (3.0 F)
1956	-11.1 C (12.0 F)
1957	-21.1 C (-6.0 F)
1958	-16.7 C (1.9 F)
1959	-13.3 C (8.1 F)
1960	-18.9 C (-2.0 F)
1961	-20.6 C (-5.1 F)
1962	-15.0 C (5.0 F)
1963	-17.8 C (0.0 F)
1964	-19.4 C (-2.9 F)
1965	-22.2 C (-8.0 F)
1966	-17.2 C (1.0 F)
1967	-17.8 C (0.0 F)
1968	-17.2 C (1.0 F)
1969	-13.9 C (7.0 F)
1970	-21.1 C (-6.0 F)
1971	-17.2 C (1.0 F)
1972	-17.2 C (1.0 F)
1973	-12.8 C (9.0 F)
1974	-14.4 C (6.1 F)
1975	-12.2 C (10.0 F)
1976	-16.1 C (3.0 F)
1977	-19.4 C (-2.9 F)

Wettest day (Rx1day)

The wettest day of the year at Waldorf Police Barrack, 1948 to 1977. The record is 163.8 mm (6.4 in) in 1955, marked on the chart; the median year is 54.0 mm (2.1 in).

Wettest day (Rx1day) at Waldorf Police Barrack by year
Year	Wettest day (Rx1day)
1948	54.6 mm (2.1 in)
1949	58.4 mm (2.3 in)
1950	116.8 mm (4.6 in)
1951	48.3 mm (1.9 in)
1952	78.2 mm (3.1 in)
1953	53.3 mm (2.1 in)
1954	35.6 mm (1.4 in)
1955	163.8 mm (6.4 in)
1956	51.1 mm (2.0 in)
1957	73.2 mm (2.9 in)
1958	72.1 mm (2.8 in)
1959	56.6 mm (2.2 in)
1960	106.7 mm (4.2 in)
1961	47.0 mm (1.9 in)
1962	51.3 mm (2.0 in)
1963	61.5 mm (2.4 in)
1964	57.2 mm (2.3 in)
1965	67.3 mm (2.6 in)
1966	41.1 mm (1.6 in)
1967	50.8 mm (2.0 in)
1968	51.3 mm (2.0 in)
1969	53.3 mm (2.1 in)
1970	71.1 mm (2.8 in)
1971	101.6 mm (4.0 in)
1972	88.9 mm (3.5 in)
1973	53.3 mm (2.1 in)
1974	51.6 mm (2.0 in)
1975	51.6 mm (2.0 in)
1976	51.3 mm (2.0 in)
1977	51.3 mm (2.0 in)

Wettest five days (Rx5day)

The wettest five days of the year at Waldorf Police Barrack, 1948 to 1977. The record is 265.3 mm (10.4 in) in 1950, marked on the chart; the median year is 85.1 mm (3.4 in).

Wettest five days (Rx5day) at Waldorf Police Barrack by year
Year	Wettest five days (Rx5day)
1948	106.4 mm (4.2 in)
1949	63.3 mm (2.5 in)
1950	265.3 mm (10.4 in)
1951	83.1 mm (3.3 in)
1952	142.7 mm (5.6 in)
1953	69.9 mm (2.8 in)
1954	56.4 mm (2.2 in)
1955	264.4 mm (10.4 in)
1956	84.8 mm (3.3 in)
1957	100.3 mm (3.9 in)
1958	123.9 mm (4.9 in)
1959	71.6 mm (2.8 in)
1960	146.5 mm (5.8 in)
1961	69.7 mm (2.7 in)
1962	84.4 mm (3.3 in)
1963	86.4 mm (3.4 in)
1964	133.5 mm (5.3 in)
1965	72.9 mm (2.9 in)
1966	85.4 mm (3.4 in)
1967	148.9 mm (5.9 in)
1968	74.0 mm (2.9 in)
1969	76.5 mm (3.0 in)
1970	75.8 mm (3.0 in)
1971	114.6 mm (4.5 in)
1972	122.7 mm (4.8 in)
1973	99.6 mm (3.9 in)
1974	79.0 mm (3.1 in)
1975	172.0 mm (6.8 in)
1976	64.7 mm (2.5 in)
1977	56.9 mm (2.2 in)

Longest dry spell (CDD)

The longest dry spell of the year at Waldorf Police Barrack, 1948 to 1977. The record is 31 days in 1974, marked on the chart; the median year is 19 days.

Longest dry spell (CDD) at Waldorf Police Barrack by year
Year	Longest dry spell (CDD)
1948	15 days
1949	18 days
1950	15 days
1951	12 days
1952	29 days
1953	21 days
1954	25 days
1955	12 days
1956	24 days
1957	18 days
1958	11 days
1959	26 days
1960	21 days
1961	15 days
1962	22 days
1963	28 days
1964	27 days
1965	21 days
1966	20 days
1967	18 days
1968	25 days
1969	16 days
1970	18 days
1971	15 days
1972	11 days
1973	26 days
1974	31 days
1975	13 days
1976	21 days
1977	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

24 years with a frost

Across 24 years with a frost, the median last spring frost at Waldorf Police Barrack falls on 21 April and the median first autumn frost on 20 October, which leaves a median of 180 days between them.

Frost dates and growing season at Waldorf Police Barrack
Measure	Median, all years	Earliest period	Recent period (1950 to 1976)	Recent against earliest	Fitted trend
Last spring frost	21 April	n/a	21 April	n/a	n/a
First autumn frost	20 October	n/a	20 October	n/a	n/a
Growing days	180 days	n/a	180 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 Waldorf Police Barrack standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Waldorf Police Barrack 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.

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