Deerfield 4 NW Weather Records (USC00392228)

Record envelope, standing records and threshold days for Deerfield 4 NW (USC00392228), South Dakota, United States, with 33 years of record.

Key Facts for Deerfield 4 NW

Deerfield 4 NW (USC00392228) is a weather station in South Dakota, United States at 44.07 latitude and -103.90 longitude, 1,896 m (6,220 ft) above sea level.
The station reports from 1948 to 1980, 33 years of record.
1,464 records set at Deerfield 4 NW still stand.
Records are tracked for no element yet: an element needs 30 years of data to be eligible.

About the Station

Location: South Dakota, United States, 44.07 latitude, -103.90 longitude.
Elevation: 1,896 m (6,220 ft).
Period of record: 1948 to 1980, 33 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 Deerfield 4 NW. 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 Deerfield 4 NW, with 2026 drawn through them
Month	Highest record high	Lowest record low	2026 highest maximum	2026 lowest minimum
Jan	12.8 C (55.0 F)	-40.0 C (-40.0 F)	n/a	n/a
Feb	16.1 C (61.0 F)	-41.1 C (-42.0 F)	n/a	n/a
Mar	20.0 C (68.0 F)	-36.7 C (-34.1 F)	n/a	n/a
Apr	24.4 C (75.9 F)	-30.0 C (-22.0 F)	n/a	n/a
May	28.9 C (84.0 F)	-13.9 C (7.0 F)	n/a	n/a
Jun	36.7 C (98.1 F)	-10.0 C (14.0 F)	n/a	n/a
Jul	34.4 C (93.9 F)	-5.0 C (23.0 F)	n/a	n/a
Aug	33.9 C (93.0 F)	-6.7 C (19.9 F)	n/a	n/a
Sep	32.2 C (90.0 F)	-12.2 C (10.0 F)	n/a	n/a
Oct	26.1 C (79.0 F)	-26.1 C (-15.0 F)	n/a	n/a
Nov	20.0 C (68.0 F)	-33.9 C (-29.0 F)	n/a	n/a
Dec	15.6 C (60.1 F)	-41.1 C (-42.0 F)	n/a	n/a

Which Years Hold Standing Records

1,464 standing records

1,464 records at Deerfield 4 NW still stand. 1962 holds the most, with 87.

Standing records at Deerfield 4 NW by the year they were set
Year set	Standing records
1955	12
1956	74
1957	56
1958	64
1959	69
1960	71
1961	64
1962	87
1963	67
1964	57
1965	71
1966	84
1967	63
1968	41
1969	61
1970	48
1971	64
1972	84
1973	12
1974	7
1975	74
1976	81
1977	48
1978	53
1979	43
1980	9

Wettest Day of Each Month

Jun: 77.0 mm (3.0 in)

The wettest day on record for each calendar month at Deerfield 4 NW. The most was 77.0 mm (3.0 in) on 25 June 1959.

Record daily precipitation for each month at Deerfield 4 NW
Month	Record daily precipitation (mm)	Date
Jan	27.9 mm (1.1 in)	26 January 1977
Feb	19.1 mm (0.8 in)	10 February 1976
Mar	31.8 mm (1.3 in)	10 March 1970
Apr	38.1 mm (1.5 in)	18 April 1970
May	57.2 mm (2.3 in)	14 May 1965
Jun	77.0 mm (3.0 in)	25 June 1959
Jul	54.6 mm (2.1 in)	21 July 1978
Aug	73.7 mm (2.9 in)	21 August 1964
Sep	41.9 mm (1.6 in)	4 September 1971
Oct	27.9 mm (1.1 in)	31 October 1974
Nov	25.4 mm (1.0 in)	30 November 1976
Dec	15.5 mm (0.6 in)	28 December 1955

Period of Record Coverage

1955 to 1980

26 years of record at Deerfield 4 NW, 1955 to 1980. 7 years have data for under 90 percent of days and are left out of rankings: 1955, 1968, 1973, 1974, 1978, 1979, 1980.

Days with data per year at Deerfield 4 NW
Year	Days with data	Share of year	Complete
1955	31	8%	No
1956	363	99%	Yes
1957	363	99%	Yes
1958	365	100%	Yes
1959	364	100%	Yes
1960	350	96%	Yes
1961	363	99%	Yes
1962	364	100%	Yes
1963	349	96%	Yes
1964	364	99%	Yes
1965	333	91%	Yes
1966	364	100%	Yes
1967	363	99%	Yes
1968	184	50%	No
1969	359	98%	Yes
1970	363	99%	Yes
1971	363	99%	Yes
1972	362	99%	Yes
1973	61	17%	No
1974	91	25%	No
1975	362	99%	Yes
1976	364	99%	Yes
1977	363	99%	Yes
1978	276	76%	No
1979	269	74%	No
1980	60	16%	No

Latest Records

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

Climate Trend

16 complete years, 1956 to 1977

One stripe for each of 16 complete years at Deerfield 4 NW, 1956 to 1977. Blue stripes are years cooler than the station's own mean of 2.4 C (36.4 F); red stripes are warmer. The coolest year was 1970, at 1.8 C (35.2 F), and the warmest was 1966, at 3.1 C (37.6 F). The strongest colour marks a difference of 0.7 C (1.3 F).

Annual mean temperature at Deerfield 4 NW as warming stripes, 1956 to 1977
Year	Annual mean temperature	Difference from the station mean
1956	2.6 C	+0.14 C
1957	2.3 C	-0.17 C
1958	3.0 C	+0.52 C
1959	2.1 C	-0.36 C
1961	2.4 C	-0.01 C
1962	2.9 C	+0.48 C
1964	2.1 C	-0.39 C
1966	3.1 C	+0.67 C
1967	2.7 C	+0.29 C
1969	2.6 C	+0.20 C
1970	1.8 C	-0.69 C
1971	1.8 C	-0.67 C
1972	1.8 C	-0.64 C
1975	2.1 C	-0.38 C
1976	3.0 C	+0.53 C
1977	3.0 C	+0.52 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 1980

Yearly extremes at Deerfield 4 NW: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Hottest day (TXx)	36.7 C (98.1 F)	1979	32.2 C (90.0 F)	26
Coldest night (TNn)	-41.1 C (-42.0 F)	1971	-35.3 C (-31.5 F)	26
Wettest day (Rx1day)	77.0 mm (3.0 in)	1959	35.6 mm (1.4 in)	28
Wettest five days (Rx5day)	126.8 mm (5.0 in)	1959	58.5 mm (2.3 in)	28
Longest dry spell (CDD)	43 days	1965	21 days	28

Hottest day (TXx)

The hottest day of the year at Deerfield 4 NW, 1948 to 1980. The record is 36.7 C (98.1 F) in 1979, marked on the chart; the median year is 32.2 C (90.0 F).

Hottest day (TXx) at Deerfield 4 NW by year
Year	Hottest day (TXx)
1948	n/a
1952	n/a
1955	9.4 C (48.9 F)
1956	30.6 C (87.1 F)
1957	31.1 C (88.0 F)
1958	31.7 C (89.1 F)
1959	33.3 C (91.9 F)
1960	33.3 C (91.9 F)
1961	33.9 C (93.0 F)
1962	30.6 C (87.1 F)
1963	32.2 C (90.0 F)
1964	32.2 C (90.0 F)
1965	30.0 C (86.0 F)
1966	34.4 C (93.9 F)
1967	33.9 C (93.0 F)
1968	22.8 C (73.0 F)
1969	31.7 C (89.1 F)
1970	32.2 C (90.0 F)
1971	30.6 C (87.1 F)
1972	33.3 C (91.9 F)
1973	28.9 C (84.0 F)
1974	26.1 C (79.0 F)
1975	33.9 C (93.0 F)
1976	32.2 C (90.0 F)
1977	32.2 C (90.0 F)
1978	32.2 C (90.0 F)
1979	36.7 C (98.1 F)
1980	26.7 C (80.1 F)

Coldest night (TNn)

The coldest night of the year at Deerfield 4 NW, 1948 to 1980. The record is -41.1 C (-42.0 F) in 1971, marked on the chart; the median year is -35.3 C (-31.5 F).

Coldest night (TNn) at Deerfield 4 NW by year
Year	Coldest night (TNn)
1948	n/a
1952	n/a
1955	-26.1 C (-15.0 F)
1956	-31.7 C (-25.1 F)
1957	-35.0 C (-31.0 F)
1958	-28.9 C (-20.0 F)
1959	-36.1 C (-33.0 F)
1960	-36.1 C (-33.0 F)
1961	-33.9 C (-29.0 F)
1962	-36.7 C (-34.1 F)
1963	-40.0 C (-40.0 F)
1964	-38.9 C (-38.0 F)
1965	-36.7 C (-34.1 F)
1966	-31.7 C (-25.1 F)
1967	-31.1 C (-24.0 F)
1968	-34.4 C (-29.9 F)
1969	-30.6 C (-23.1 F)
1970	-33.3 C (-27.9 F)
1971	-41.1 C (-42.0 F)
1972	-37.2 C (-35.0 F)
1973	-35.6 C (-32.1 F)
1974	-28.9 C (-20.0 F)
1975	-37.8 C (-36.0 F)
1976	-41.1 C (-42.0 F)
1977	-34.4 C (-29.9 F)
1978	-41.1 C (-42.0 F)
1979	-36.7 C (-34.1 F)
1980	-31.1 C (-24.0 F)

Wettest day (Rx1day)

The wettest day of the year at Deerfield 4 NW, 1948 to 1980. The record is 77.0 mm (3.0 in) in 1959, marked on the chart; the median year is 35.6 mm (1.4 in).

Wettest day (Rx1day) at Deerfield 4 NW by year
Year	Wettest day (Rx1day)
1948	7.6 mm (0.30 in)
1952	7.1 mm (0.28 in)
1955	15.5 mm (0.6 in)
1956	32.5 mm (1.3 in)
1957	29.7 mm (1.2 in)
1958	38.1 mm (1.5 in)
1959	77.0 mm (3.0 in)
1960	20.3 mm (0.8 in)
1961	29.7 mm (1.2 in)
1962	31.8 mm (1.3 in)
1963	44.5 mm (1.8 in)
1964	73.7 mm (2.9 in)
1965	57.2 mm (2.3 in)
1966	40.6 mm (1.6 in)
1967	39.4 mm (1.6 in)
1968	20.3 mm (0.8 in)
1969	44.5 mm (1.8 in)
1970	40.6 mm (1.6 in)
1971	41.9 mm (1.6 in)
1972	34.5 mm (1.4 in)
1973	35.6 mm (1.4 in)
1974	62.0 mm (2.4 in)
1975	27.9 mm (1.1 in)
1976	52.1 mm (2.1 in)
1977	27.9 mm (1.1 in)
1978	54.6 mm (2.1 in)
1979	33.0 mm (1.3 in)
1980	35.6 mm (1.4 in)

Wettest five days (Rx5day)

The wettest five days of the year at Deerfield 4 NW, 1948 to 1980. The record is 126.8 mm (5.0 in) in 1959, marked on the chart; the median year is 58.5 mm (2.3 in).

Wettest five days (Rx5day) at Deerfield 4 NW by year
Year	Wettest five days (Rx5day)
1948	12.4 mm (0.5 in)
1952	10.6 mm (0.4 in)
1955	17.0 mm (0.7 in)
1956	58.4 mm (2.3 in)
1957	45.2 mm (1.8 in)
1958	43.3 mm (1.7 in)
1959	126.8 mm (5.0 in)
1960	38.8 mm (1.5 in)
1961	51.5 mm (2.0 in)
1962	95.2 mm (3.7 in)
1963	81.3 mm (3.2 in)
1964	104.4 mm (4.1 in)
1965	81.9 mm (3.2 in)
1966	57.2 mm (2.3 in)
1967	78.7 mm (3.1 in)
1968	31.9 mm (1.3 in)
1969	95.7 mm (3.8 in)
1970	58.5 mm (2.3 in)
1971	57.1 mm (2.2 in)
1972	57.3 mm (2.3 in)
1973	70.1 mm (2.8 in)
1974	84.9 mm (3.3 in)
1975	69.5 mm (2.7 in)
1976	113.4 mm (4.5 in)
1977	47.6 mm (1.9 in)
1978	108.4 mm (4.3 in)
1979	56.2 mm (2.2 in)
1980	61.3 mm (2.4 in)

Longest dry spell (CDD)

The longest dry spell of the year at Deerfield 4 NW, 1948 to 1980. The record is 43 days in 1965, marked on the chart; the median year is 21 days.

Longest dry spell (CDD) at Deerfield 4 NW by year
Year	Longest dry spell (CDD)
1948	16 days
1952	33 days
1955	6 days
1956	15 days
1957	27 days
1958	21 days
1959	24 days
1960	32 days
1961	17 days
1962	26 days
1963	27 days
1964	34 days
1965	43 days
1966	14 days
1967	21 days
1968	23 days
1969	26 days
1970	20 days
1971	15 days
1972	13 days
1973	24 days
1974	18 days
1975	42 days
1976	21 days
1977	17 days
1978	14 days
1979	19 days
1980	7 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 Deerfield 4 NW standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Deerfield 4 NW 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).