North River Dam Weather Records (USC00446199)

Record envelope, standing records and threshold days for North River Dam (USC00446199), Virginia, United States, with 50 years of record.

Key Facts for North River Dam

North River Dam (USC00446199) is a weather station in Virginia, United States at 38.37 latitude and -79.27 longitude, 732 m (2,402 ft) above sea level.
The station reports from 1930 to 1979, 50 years of record.
2 records set at North River Dam still stand.
Records are tracked for prcp, snow, snwd: an element needs 30 years of data to be eligible.
North River Dam set a monthly record daily snowfall of 25.4 cm (10.0 in) on 10 October 1979.

About the Station

Location: Virginia, United States, 38.37 latitude, -79.27 longitude.
Elevation: 732 m (2,402 ft).
Period of record: 1930 to 1979, 50 years.
Eligible elements: prcp, snow, snwd.

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 North River Dam. 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 North River Dam, with 2026 drawn through them
Month	Highest record high	Lowest record low	2026 highest maximum	2026 lowest minimum
Jan	n/a	n/a	n/a	n/a
Feb	n/a	n/a	n/a	n/a
Mar	n/a	n/a	n/a	n/a
Apr	n/a	n/a	n/a	n/a
May	n/a	n/a	n/a	n/a
Jun	-3.3 C (26.1 F)	n/a	n/a	n/a
Jul	n/a	n/a	n/a	n/a
Aug	n/a	n/a	n/a	n/a
Sep	n/a	n/a	n/a	n/a
Oct	n/a	n/a	n/a	n/a
Nov	n/a	n/a	n/a	n/a
Dec	n/a	n/a	n/a	n/a

Which Years Hold Standing Records

2 standing records

2 records at North River Dam still stand. 1976 holds the most, with 2.

Wettest Day of Each Month

Jun: 184.2 mm (7.3 in)

The wettest day on record for each calendar month at North River Dam. The most was 184.2 mm (7.3 in) on 17 June 1949.

Record daily precipitation for each month at North River Dam
Month	Record daily precipitation (mm)	Date
Jan	79.2 mm (3.1 in)	24 January 1935
Feb	53.3 mm (2.1 in)	7 February 1965
Mar	91.7 mm (3.6 in)	18 March 1936
Apr	57.2 mm (2.3 in)	9 April 1935
May	133.4 mm (5.3 in)	30 May 1971
Jun	184.2 mm (7.3 in)	17 June 1949
Jul	108.0 mm (4.3 in)	9 July 1947
Aug	104.9 mm (4.1 in)	18 August 1955
Sep	117.3 mm (4.6 in)	30 September 1959
Oct	157.5 mm (6.2 in)	18 October 1932
Nov	61.5 mm (2.4 in)	14 November 1935
Dec	50.3 mm (2.0 in)	5 December 1973

Period of Record Coverage

1976 to 1976

1 years of record at North River Dam, 1976 to 1976. 1 years have data for under 90 percent of days and are left out of rankings: 1976.

Latest Records

Latest records at North River Dam
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
10 October 1979	North River Dam, US	monthly snowfall	25.4 cm (10.0 in)	18.3 cm (7.2 in)	38 years	62 of 100 (Major)
15 September 1979	North River Dam, US	daily rain	28.4 mm (1.1 in)	14.7 mm (0.6 in)	40 years	25 of 100 (Routine)
7 September 1979	North River Dam, US	daily rain	27.4 mm (1.1 in)	3.3 mm (0.13 in)	30 years	15 of 100 (Routine)
6 September 1979	North River Dam, US	daily rain	116.8 mm (4.6 in)	14.2 mm (0.6 in)	44 years	26 of 100 (Routine)
3 September 1979	North River Dam, US	daily rain	67.6 mm (2.7 in)	28.2 mm (1.1 in)	24 years	27 of 100 (Routine)
10 June 1979	North River Dam, US	daily rain	30.0 mm (1.2 in)	19.1 mm (0.8 in)	8 years	19 of 100 (Routine)
24 May 1979	North River Dam, US	daily rain	79.2 mm (3.1 in)	49.2 mm (1.9 in)	13 years	46 of 100 (Notable)
13 May 1979	North River Dam, US	daily rain	92.7 mm (3.6 in)	40.9 mm (1.6 in)	46 years	50 of 100 (Notable)
25 March 1979	North River Dam, US	daily rain	23.6 mm (0.9 in)	5.8 mm (0.23 in)	25 years	16 of 100 (Routine)
24 March 1979	North River Dam, US	daily rain	13.2 mm (0.5 in)	1.5 mm (0.06 in)	34 years	16 of 100 (Routine)
25 February 1979	North River Dam, US	daily rain	47.0 mm (1.9 in)	15.2 mm (0.6 in)	13 years	24 of 100 (Routine)
19 February 1979	North River Dam, US	daily snowfall	30.5 cm (12.0 in)	30.5 cm (12.0 in)	47 years	41 of 100 (Notable)
13 February 1979	North River Dam, US	daily snowfall	2.5 cm (1.0 in)	1.2 cm (0.5 in)	39 years	16 of 100 (Routine)
12 February 1979	North River Dam, US	daily snowfall	7.6 cm (3.0 in)	7.6 cm (3.0 in)	47 years	24 of 100 (Routine)
9 February 1979	North River Dam, US	daily snowfall (Tie)	2.5 cm (1.0 in)	tie	43 years	4 of 100 (Routine)
21 January 1979	North River Dam, US	daily rain	61.7 mm (2.4 in)	35.0 mm (1.4 in)	9 years	42 of 100 (Notable)
8 January 1979	North River Dam, US	daily rain	22.1 mm (0.9 in)	8.9 mm (0.35 in)	47 years	20 of 100 (Routine)
16 November 1978	North River Dam, US	daily rain	22.1 mm (0.9 in)	15.2 mm (0.6 in)	27 years	20 of 100 (Routine)
14 May 1978	North River Dam, US	daily rain	35.6 mm (1.4 in)	13.2 mm (0.5 in)	12 years	17 of 100 (Routine)
26 March 1978	North River Dam, US	daily snowfall	7.6 cm (3.0 in)	7.6 cm (3.0 in)	47 years	28 of 100 (Routine)

Extremes by Year

1930 to 1979

Yearly extremes at North River Dam: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Hottest day (TXx)	-3.3 C (26.1 F)	1976	-3.3 C (26.1 F)	1
Wettest day (Rx1day)	184.2 mm (7.3 in)	1949	69.2 mm (2.7 in)	50
Wettest five days (Rx5day)	250.2 mm (9.9 in)	1949	105.3 mm (4.1 in)	50
Longest dry spell (CDD)	35 days	1952	21 days	50

Hottest day (TXx)

The hottest day of the year at North River Dam, 1930 to 1979. The record is -3.3 C (26.1 F) in 1976, marked on the chart; the median year is -3.3 C (26.1 F).

Hottest day (TXx) at North River Dam by year
Year	Hottest day (TXx)
1930	n/a
1931	n/a
1932	n/a
1933	n/a
1934	n/a
1935	n/a
1936	n/a
1937	n/a
1938	n/a
1939	n/a
1940	n/a
1941	n/a
1942	n/a
1943	n/a
1944	n/a
1945	n/a
1946	n/a
1947	n/a
1948	n/a
1949	n/a
1950	n/a
1951	n/a
1952	n/a
1953	n/a
1954	n/a
1955	n/a
1956	n/a
1957	n/a
1958	n/a
1959	n/a
1960	n/a
1961	n/a
1962	n/a
1963	n/a
1964	n/a
1965	n/a
1966	n/a
1967	n/a
1968	n/a
1969	n/a
1970	n/a
1971	n/a
1972	n/a
1973	n/a
1974	n/a
1975	n/a
1976	-3.3 C (26.1 F)
1977	n/a
1978	n/a
1979	n/a

Wettest day (Rx1day)

The wettest day of the year at North River Dam, 1930 to 1979. The record is 184.2 mm (7.3 in) in 1949, marked on the chart; the median year is 69.2 mm (2.7 in).

Wettest day (Rx1day) at North River Dam by year
Year	Wettest day (Rx1day)
1930	39.6 mm (1.6 in)
1931	63.5 mm (2.5 in)
1932	157.5 mm (6.2 in)
1933	84.8 mm (3.3 in)
1934	87.4 mm (3.4 in)
1935	102.6 mm (4.0 in)
1936	91.7 mm (3.6 in)
1937	67.3 mm (2.6 in)
1938	88.9 mm (3.5 in)
1939	62.0 mm (2.4 in)
1940	69.3 mm (2.7 in)
1941	63.8 mm (2.5 in)
1942	88.9 mm (3.5 in)
1943	68.8 mm (2.7 in)
1944	86.4 mm (3.4 in)
1945	80.8 mm (3.2 in)
1946	48.3 mm (1.9 in)
1947	108.0 mm (4.3 in)
1948	47.2 mm (1.9 in)
1949	184.2 mm (7.3 in)
1950	87.6 mm (3.4 in)
1951	36.1 mm (1.4 in)
1952	58.4 mm (2.3 in)
1953	54.4 mm (2.1 in)
1954	128.5 mm (5.1 in)
1955	104.9 mm (4.1 in)
1956	78.7 mm (3.1 in)
1957	70.9 mm (2.8 in)
1958	48.8 mm (1.9 in)
1959	117.3 mm (4.6 in)
1960	81.3 mm (3.2 in)
1961	91.4 mm (3.6 in)
1962	49.5 mm (1.9 in)
1963	50.8 mm (2.0 in)
1964	58.4 mm (2.3 in)
1965	53.3 mm (2.1 in)
1966	67.3 mm (2.6 in)
1967	88.9 mm (3.5 in)
1968	71.6 mm (2.8 in)
1969	53.1 mm (2.1 in)
1970	57.2 mm (2.3 in)
1971	133.4 mm (5.3 in)
1972	149.4 mm (5.9 in)
1973	53.3 mm (2.1 in)
1974	59.4 mm (2.3 in)
1975	51.3 mm (2.0 in)
1976	69.1 mm (2.7 in)
1977	50.3 mm (2.0 in)
1978	35.6 mm (1.4 in)
1979	116.8 mm (4.6 in)

Wettest five days (Rx5day)

The wettest five days of the year at North River Dam, 1930 to 1979. The record is 250.2 mm (9.9 in) in 1949, marked on the chart; the median year is 105.3 mm (4.1 in).

Wettest five days (Rx5day) at North River Dam by year
Year	Wettest five days (Rx5day)
1930	40.6 mm (1.6 in)
1931	67.3 mm (2.6 in)
1932	157.5 mm (6.2 in)
1933	127.7 mm (5.0 in)
1934	112.0 mm (4.4 in)
1935	105.7 mm (4.2 in)
1936	106.1 mm (4.2 in)
1937	104.4 mm (4.1 in)
1938	163.1 mm (6.4 in)
1939	59.9 mm (2.4 in)
1940	160.6 mm (6.3 in)
1941	82.3 mm (3.2 in)
1942	163.9 mm (6.5 in)
1943	92.3 mm (3.6 in)
1944	110.3 mm (4.3 in)
1945	192.1 mm (7.6 in)
1946	61.0 mm (2.4 in)
1947	127.0 mm (5.0 in)
1948	82.6 mm (3.3 in)
1949	250.2 mm (9.9 in)
1950	140.2 mm (5.5 in)
1951	80.8 mm (3.2 in)
1952	96.3 mm (3.8 in)
1953	72.2 mm (2.8 in)
1954	128.5 mm (5.1 in)
1955	104.9 mm (4.1 in)
1956	78.7 mm (3.1 in)
1957	80.0 mm (3.1 in)
1958	62.8 mm (2.5 in)
1959	128.2 mm (5.0 in)
1960	89.9 mm (3.5 in)
1961	106.6 mm (4.2 in)
1962	85.1 mm (3.4 in)
1963	69.6 mm (2.7 in)
1964	69.7 mm (2.7 in)
1965	72.4 mm (2.9 in)
1966	105.4 mm (4.1 in)
1967	143.8 mm (5.7 in)
1968	80.3 mm (3.2 in)
1969	86.9 mm (3.4 in)
1970	127.8 mm (5.0 in)
1971	133.4 mm (5.3 in)
1972	163.9 mm (6.5 in)
1973	80.3 mm (3.2 in)
1974	105.1 mm (4.1 in)
1975	109.6 mm (4.3 in)
1976	130.0 mm (5.1 in)
1977	142.2 mm (5.6 in)
1978	55.6 mm (2.2 in)
1979	211.8 mm (8.3 in)

Longest dry spell (CDD)

The longest dry spell of the year at North River Dam, 1930 to 1979. The record is 35 days in 1952, marked on the chart; the median year is 21 days.

Longest dry spell (CDD) at North River Dam by year
Year	Longest dry spell (CDD)
1930	28 days
1931	20 days
1932	13 days
1933	21 days
1934	19 days
1935	16 days
1936	20 days
1937	15 days
1938	19 days
1939	24 days
1940	16 days
1941	33 days
1942	22 days
1943	20 days
1944	25 days
1945	27 days
1946	20 days
1947	15 days
1948	16 days
1949	24 days
1950	15 days
1951	21 days
1952	35 days
1953	17 days
1954	25 days
1955	21 days
1956	23 days
1957	18 days
1958	25 days
1959	20 days
1960	17 days
1961	14 days
1962	19 days
1963	28 days
1964	29 days
1965	18 days
1966	27 days
1967	19 days
1968	33 days
1969	22 days
1970	22 days
1971	20 days
1972	20 days
1973	23 days
1974	27 days
1975	19 days
1976	30 days
1977	30 days
1978	22 days
1979	12 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.

Rainfall Return Levels

35 years, 1932 to 1976

A day with at least 69.9 mm (2.8 in) of rain is expected about once in 2 years. A day with at least 219.8 mm (8.7 in) of rain is expected about once in 100 years.

Rainfall return levels at North River Dam: the daily rain expected about once in a given number of years
Expected about once in	A day with at least	Note
2 years	69.9 mm (2.8 in)
5 years	97.8 mm (3.9 in)
10 years	120.4 mm (4.7 in)
25 years	154.6 mm (6.1 in)
50 years	184.9 mm (7.3 in)	Longer than the 35 years of record
100 years	219.8 mm (8.7 in)	Longer than the 35 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, 35 years of values from 1932 to 1976.

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: 184.2 mm (7.3 in) in 1949; 157.5 mm (6.2 in) in 1932; 149.4 mm (5.9 in) in 1972.

Download the Data

Data for North River Dam standing records by year: CSV or JSON. Field meanings are on the data page.
Data for North River Dam 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.

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