Hot Sulphur Spgs 2 SW Weather Records (USC00054129)

Record envelope, standing records and threshold days for Hot Sulphur Spgs 2 SW (USC00054129), Colorado, United States, with 41 years of record.

Key Facts for Hot Sulphur Spgs 2 SW

Hot Sulphur Spgs 2 SW (USC00054129) is a weather station in Colorado, United States at 40.05 latitude and -106.15 longitude, 2,318 m (7,605 ft) above sea level.
The station reports from 1941 to 1981, 41 years of record.
1,464 records set at Hot Sulphur Spgs 2 SW still stand.
Records are tracked for tmax, tmin, snow: an element needs 30 years of data to be eligible.
Hot Sulphur Spgs 2 SW set a daily record high minimum temperature of 10.0 C (50.0 F) on 28 June 1981.

About the Station

Location: Colorado, United States, 40.05 latitude, -106.15 longitude.
Elevation: 2,318 m (7,605 ft).
Period of record: 1941 to 1981, 41 years.
Eligible elements: tmax, tmin, snow.

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 Hot Sulphur Spgs 2 SW. 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 Hot Sulphur Spgs 2 SW, with 2026 drawn through them
Month	Highest record high	Lowest record low	2026 highest maximum	2026 lowest minimum
Jan	11.1 C (52.0 F)	-41.1 C (-42.0 F)	n/a	n/a
Feb	12.2 C (54.0 F)	-40.0 C (-40.0 F)	n/a	n/a
Mar	18.9 C (66.0 F)	-31.1 C (-24.0 F)	n/a	n/a
Apr	22.8 C (73.0 F)	-23.3 C (-9.9 F)	n/a	n/a
May	30.0 C (86.0 F)	-13.9 C (7.0 F)	n/a	n/a
Jun	34.4 C (93.9 F)	-6.7 C (19.9 F)	n/a	n/a
Jul	33.3 C (91.9 F)	-4.4 C (24.1 F)	n/a	n/a
Aug	34.4 C (93.9 F)	-6.1 C (21.0 F)	n/a	n/a
Sep	31.1 C (88.0 F)	-11.7 C (10.9 F)	n/a	n/a
Oct	27.8 C (82.0 F)	-24.4 C (-11.9 F)	n/a	n/a
Nov	18.9 C (66.0 F)	-38.3 C (-36.9 F)	n/a	n/a
Dec	13.3 C (55.9 F)	-40.6 C (-41.1 F)	n/a	n/a

Which Years Hold Standing Records

1,464 standing records

1,464 records at Hot Sulphur Spgs 2 SW still stand. 1954 holds the most, with 81.

Standing records at Hot Sulphur Spgs 2 SW by the year they were set
Year set	Standing records
1941	3
1942	55
1943	49
1944	70
1953	20
1954	81
1955	40
1956	51
1957	46
1958	42
1959	36
1960	41
1961	42
1962	61
1963	42
1964	36
1965	46
1966	55
1967	39
1968	28
1969	46
1970	45
1971	37
1972	49
1973	69
1974	63
1975	59
1976	44
1977	27
1978	43
1979	46
1980	44
1981	9

Wettest Day of Each Month

Jul: 48.3 mm (1.9 in)

The wettest day on record for each calendar month at Hot Sulphur Spgs 2 SW. The most was 48.3 mm (1.9 in) on 22 July 1943.

Record daily precipitation for each month at Hot Sulphur Spgs 2 SW
Month	Record daily precipitation (mm)	Date
Jan	14.7 mm (0.6 in)	8 January 1942
Feb	13.7 mm (0.5 in)	8 February 1942
Mar	15.7 mm (0.6 in)	30 March 1981
Apr	22.9 mm (0.9 in)	19 April 1942
May	29.2 mm (1.1 in)	9 May 1957
Jun	26.9 mm (1.1 in)	17 June 1969
Jul	48.3 mm (1.9 in)	22 July 1943
Aug	18.3 mm (0.7 in)	2 August 1963
Sep	31.8 mm (1.3 in)	23 September 1961
Oct	27.9 mm (1.1 in)	7 October 1970
Nov	16.5 mm (0.6 in)	12 November 1955
Dec	28.4 mm (1.1 in)	6 December 1966

Period of Record Coverage

1941 to 1981

33 years of record at Hot Sulphur Spgs 2 SW, 1941 to 1981. 10 years have data for under 90 percent of days and are left out of rankings: 1941, 1944, 1953, 1974, 1976, 1977, 1978, 1979 and others.

Days with data per year at Hot Sulphur Spgs 2 SW
Year	Days with data	Share of year	Complete
1941	30	8%	No
1942	349	96%	Yes
1943	343	94%	Yes
1944	303	83%	No
1953	194	53%	No
1954	331	91%	Yes
1955	357	98%	Yes
1956	361	99%	Yes
1957	351	96%	Yes
1958	364	100%	Yes
1959	349	96%	Yes
1960	351	96%	Yes
1961	359	98%	Yes
1962	364	100%	Yes
1963	360	99%	Yes
1964	360	98%	Yes
1965	362	99%	Yes
1966	363	99%	Yes
1967	365	100%	Yes
1968	363	99%	Yes
1969	363	99%	Yes
1970	364	100%	Yes
1971	365	100%	Yes
1972	348	95%	Yes
1973	358	98%	Yes
1974	296	81%	No
1975	330	90%	Yes
1976	278	76%	No
1977	173	47%	No
1978	217	59%	No
1979	291	80%	No
1980	311	85%	No
1981	92	25%	No

Latest Records

Latest records at Hot Sulphur Spgs 2 SW
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
28 June 1981	Hot Sulphur Spgs 2 SW, US	daily high min	10.0 C (50.0 F)	2.2 C (4.0 F)	24 years	18 of 100 (Routine)
17 June 1981	Hot Sulphur Spgs 2 SW, US	daily high min	8.9 C (48.0 F)	2.2 C (4.0 F)	22 years	17 of 100 (Routine)
15 June 1981	Hot Sulphur Spgs 2 SW, US	daily low min	-1.7 C (28.9 F)	0.6 C (1.1 F)	38 years	16 of 100 (Routine)
7 June 1981	Hot Sulphur Spgs 2 SW, US	daily high min	7.2 C (45.0 F)	0.5 C (0.9 F)	23 years	11 of 100 (Routine)
29 March 1981	Hot Sulphur Spgs 2 SW, US	daily high min (Tie)	-3.9 C (25.0 F)	tie	23 years	2 of 100 (Routine)
26 March 1981	Hot Sulphur Spgs 2 SW, US	daily high max	17.2 C (63.0 F)	1.1 C (2.0 F)	10 years	9 of 100 (Routine)
4 March 1981	Hot Sulphur Spgs 2 SW, US	daily high min	-1.1 C (30.0 F)	1.7 C (3.1 F)	0 years	6 of 100 (Routine)
29 January 1981	Hot Sulphur Spgs 2 SW, US	daily high max (Tie)	7.2 C (45.0 F)	tie	10 years	1 of 100 (Routine)
28 January 1981	Hot Sulphur Spgs 2 SW, US	daily high max	8.9 C (48.0 F)	0.6 C (1.1 F)	27 years	13 of 100 (Routine)
4 January 1981	Hot Sulphur Spgs 2 SW, US	daily high min (Tie)	-9.4 C (15.1 F)	tie	24 years	2 of 100 (Routine)
3 January 1981	Hot Sulphur Spgs 2 SW, US	daily high max	5.6 C (42.1 F)	0.6 C (1.1 F)	27 years	13 of 100 (Routine)
2 January 1981	Hot Sulphur Spgs 2 SW, US	daily high max	7.2 C (45.0 F)	1.6 C (2.9 F)	38 years	17 of 100 (Routine)
1 January 1981	Hot Sulphur Spgs 2 SW, US	daily high max (Tie)	5.6 C (42.1 F)	tie	38 years	3 of 100 (Routine)
27 October 1980	Hot Sulphur Spgs 2 SW, US	daily snowfall	1.3 cm (0.5 in)	1.3 cm (0.5 in)	38 years	16 of 100 (Routine)
8 March 1980	Hot Sulphur Spgs 2 SW, US	daily snowfall (Tie)	5.1 cm (2.0 in)	tie	20 years	2 of 100 (Routine)
7 March 1980	Hot Sulphur Spgs 2 SW, US	daily snowfall	10.2 cm (4.0 in)	2.6 cm (1.0 in)	11 years	13 of 100 (Routine)
6 March 1980	Hot Sulphur Spgs 2 SW, US	daily snowfall	10.2 cm (4.0 in)	5.1 cm (2.0 in)	36 years	26 of 100 (Routine)
28 January 1980	Hot Sulphur Spgs 2 SW, US	daily snowfall	25.4 cm (10.0 in)	10.2 cm (4.0 in)	20 years	36 of 100 (Notable)
27 January 1980	Hot Sulphur Spgs 2 SW, US	monthly snowfall	33.0 cm (13.0 in)	8.9 cm (3.5 in)	38 years	48 of 100 (Notable)
15 January 1980	Hot Sulphur Spgs 2 SW, US	daily snowfall (Tie)	5.1 cm (2.0 in)	tie	24 years	2 of 100 (Routine)

Climate Trend

23 complete years, 1942 to 1976

One stripe for each of 23 complete years at Hot Sulphur Spgs 2 SW, 1942 to 1976. Blue stripes are years cooler than the station's own mean of 2.9 C (37.2 F); red stripes are warmer. The coolest year was 1973, at 1.6 C (34.8 F), and the warmest was 1963, at 4.0 C (39.2 F). The strongest colour marks a difference of 1.4 C (2.5 F).

Annual mean temperature at Hot Sulphur Spgs 2 SW as warming stripes, 1942 to 1976
Year	Annual mean temperature	Difference from the station mean
1942	2.1 C	-0.80 C
1943	3.0 C	+0.06 C
1955	2.5 C	-0.37 C
1956	2.8 C	-0.10 C
1957	2.9 C	+0.02 C
1958	3.7 C	+0.84 C
1959	3.8 C	+0.85 C
1960	3.7 C	+0.75 C
1961	3.3 C	+0.41 C
1962	3.0 C	+0.13 C
1963	4.0 C	+1.11 C
1964	2.2 C	-0.75 C
1965	2.6 C	-0.34 C
1966	3.3 C	+0.38 C
1967	3.1 C	+0.20 C
1968	2.0 C	-0.92 C
1969	3.1 C	+0.19 C
1970	2.6 C	-0.27 C
1971	3.2 C	+0.27 C
1972	3.4 C	+0.49 C
1973	1.6 C	-1.34 C
1975	2.3 C	-0.65 C
1976	2.8 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

1941 to 1981

Yearly extremes at Hot Sulphur Spgs 2 SW: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Hottest day (TXx)	34.4 C (93.9 F)	1944	31.1 C (88.0 F)	33
Coldest night (TNn)	-41.1 C (-42.0 F)	1962	-33.9 C (-29.0 F)	33
Wettest day (Rx1day)	48.3 mm (1.9 in)	1943	18.0 mm (0.7 in)	33
Wettest five days (Rx5day)	76.0 mm (3.0 in)	1961	28.7 mm (1.1 in)	33
Longest dry spell (CDD)	76 days	1944	29 days	33

Hottest day (TXx)

The hottest day of the year at Hot Sulphur Spgs 2 SW, 1941 to 1981. The record is 34.4 C (93.9 F) in 1944, marked on the chart; the median year is 31.1 C (88.0 F).

Hottest day (TXx) at Hot Sulphur Spgs 2 SW by year
Year	Hottest day (TXx)
1941	13.3 C (55.9 F)
1942	32.2 C (90.0 F)
1943	30.6 C (87.1 F)
1944	34.4 C (93.9 F)
1953	31.1 C (88.0 F)
1954	34.4 C (93.9 F)
1955	30.0 C (86.0 F)
1956	29.4 C (84.9 F)
1957	30.0 C (86.0 F)
1958	32.8 C (91.0 F)
1959	31.1 C (88.0 F)
1960	32.2 C (90.0 F)
1961	31.1 C (88.0 F)
1962	31.7 C (89.1 F)
1963	32.2 C (90.0 F)
1964	31.7 C (89.1 F)
1965	31.1 C (88.0 F)
1966	32.2 C (90.0 F)
1967	30.6 C (87.1 F)
1968	30.0 C (86.0 F)
1969	33.9 C (93.0 F)
1970	32.2 C (90.0 F)
1971	32.8 C (91.0 F)
1972	31.1 C (88.0 F)
1973	31.1 C (88.0 F)
1974	30.0 C (86.0 F)
1975	31.7 C (89.1 F)
1976	33.3 C (91.9 F)
1977	31.1 C (88.0 F)
1978	32.2 C (90.0 F)
1979	30.0 C (86.0 F)
1980	30.6 C (87.1 F)
1981	28.3 C (82.9 F)

Coldest night (TNn)

The coldest night of the year at Hot Sulphur Spgs 2 SW, 1941 to 1981. The record is -41.1 C (-42.0 F) in 1962, marked on the chart; the median year is -33.9 C (-29.0 F).

Coldest night (TNn) at Hot Sulphur Spgs 2 SW by year
Year	Coldest night (TNn)
1941	-26.7 C (-16.1 F)
1942	-40.0 C (-40.0 F)
1943	-36.7 C (-34.1 F)
1944	-36.1 C (-33.0 F)
1953	-28.9 C (-20.0 F)
1954	-33.3 C (-27.9 F)
1955	-31.1 C (-24.0 F)
1956	-33.9 C (-29.0 F)
1957	-34.4 C (-29.9 F)
1958	-30.0 C (-22.0 F)
1959	-28.9 C (-20.0 F)
1960	-30.0 C (-22.0 F)
1961	-28.9 C (-20.0 F)
1962	-41.1 C (-42.0 F)
1963	-41.1 C (-42.0 F)
1964	-33.9 C (-29.0 F)
1965	-31.1 C (-24.0 F)
1966	-33.3 C (-27.9 F)
1967	-32.2 C (-26.0 F)
1968	-31.1 C (-24.0 F)
1969	-32.2 C (-26.0 F)
1970	-33.9 C (-29.0 F)
1971	-35.6 C (-32.1 F)
1972	-35.0 C (-31.0 F)
1973	-36.1 C (-33.0 F)
1974	-41.1 C (-42.0 F)
1975	-35.6 C (-32.1 F)
1976	-38.3 C (-36.9 F)
1977	-31.7 C (-25.1 F)
1978	-40.6 C (-41.1 F)
1979	-30.6 C (-23.1 F)
1980	-34.4 C (-29.9 F)
1981	-21.1 C (-6.0 F)

Wettest day (Rx1day)

The wettest day of the year at Hot Sulphur Spgs 2 SW, 1941 to 1981. The record is 48.3 mm (1.9 in) in 1943, marked on the chart; the median year is 18.0 mm (0.7 in).

Wettest day (Rx1day) at Hot Sulphur Spgs 2 SW by year
Year	Wettest day (Rx1day)
1941	2.5 mm (0.10 in)
1942	22.9 mm (0.9 in)
1943	48.3 mm (1.9 in)
1944	22.9 mm (0.9 in)
1953	18.8 mm (0.7 in)
1954	15.2 mm (0.6 in)
1955	27.7 mm (1.1 in)
1956	14.0 mm (0.6 in)
1957	29.2 mm (1.1 in)
1958	22.6 mm (0.9 in)
1959	27.9 mm (1.1 in)
1960	11.2 mm (0.4 in)
1961	31.8 mm (1.3 in)
1962	15.2 mm (0.6 in)
1963	18.3 mm (0.7 in)
1964	13.7 mm (0.5 in)
1965	18.0 mm (0.7 in)
1966	28.4 mm (1.1 in)
1967	10.7 mm (0.4 in)
1968	13.0 mm (0.5 in)
1969	26.9 mm (1.1 in)
1970	27.9 mm (1.1 in)
1971	12.7 mm (0.5 in)
1972	11.4 mm (0.4 in)
1973	17.8 mm (0.7 in)
1974	17.8 mm (0.7 in)
1975	19.1 mm (0.8 in)
1976	11.7 mm (0.5 in)
1977	24.1 mm (0.9 in)
1978	15.2 mm (0.6 in)
1979	20.3 mm (0.8 in)
1980	10.9 mm (0.4 in)
1981	15.7 mm (0.6 in)

Wettest five days (Rx5day)

The wettest five days of the year at Hot Sulphur Spgs 2 SW, 1941 to 1981. The record is 76.0 mm (3.0 in) in 1961, marked on the chart; the median year is 28.7 mm (1.1 in).

Wettest five days (Rx5day) at Hot Sulphur Spgs 2 SW by year
Year	Wettest five days (Rx5day)
1941	4.3 mm (0.17 in)
1942	40.9 mm (1.6 in)
1943	48.3 mm (1.9 in)
1944	33.0 mm (1.3 in)
1953	24.9 mm (1.0 in)
1954	28.6 mm (1.1 in)
1955	54.7 mm (2.2 in)
1956	28.0 mm (1.1 in)
1957	50.8 mm (2.0 in)
1958	22.6 mm (0.9 in)
1959	57.4 mm (2.3 in)
1960	28.1 mm (1.1 in)
1961	76.0 mm (3.0 in)
1962	30.2 mm (1.2 in)
1963	34.0 mm (1.3 in)
1964	28.7 mm (1.1 in)
1965	26.2 mm (1.0 in)
1966	42.3 mm (1.7 in)
1967	26.1 mm (1.0 in)
1968	16.3 mm (0.6 in)
1969	42.7 mm (1.7 in)
1970	44.4 mm (1.7 in)
1971	24.1 mm (0.9 in)
1972	33.6 mm (1.3 in)
1973	29.3 mm (1.2 in)
1974	46.9 mm (1.8 in)
1975	19.7 mm (0.8 in)
1976	23.6 mm (0.9 in)
1977	61.9 mm (2.4 in)
1978	27.6 mm (1.1 in)
1979	27.9 mm (1.1 in)
1980	17.8 mm (0.7 in)
1981	17.2 mm (0.7 in)

Longest dry spell (CDD)

The longest dry spell of the year at Hot Sulphur Spgs 2 SW, 1941 to 1981. The record is 76 days in 1944, marked on the chart; the median year is 29 days.

Longest dry spell (CDD) at Hot Sulphur Spgs 2 SW by year
Year	Longest dry spell (CDD)
1941	8 days
1942	23 days
1943	18 days
1944	76 days
1953	33 days
1954	28 days
1955	23 days
1956	53 days
1957	22 days
1958	30 days
1959	30 days
1960	21 days
1961	25 days
1962	26 days
1963	30 days
1964	34 days
1965	39 days
1966	34 days
1967	18 days
1968	26 days
1969	22 days
1970	42 days
1971	29 days
1972	23 days
1973	43 days
1974	23 days
1975	37 days
1976	31 days
1977	25 days
1978	25 days
1979	51 days
1980	44 days
1981	31 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

23 years with a frost

Across 23 years with a frost, the median last spring frost at Hot Sulphur Spgs 2 SW falls on 23 June and the median first autumn frost on 7 July, which leaves a median of 26 days between them.

Frost dates and growing season at Hot Sulphur Spgs 2 SW
Measure	Median, all years	Earliest period	Recent period (1942 to 1976)	Recent against earliest	Fitted trend
Last spring frost	23 June	n/a	23 June	n/a	n/a
First autumn frost	7 July	n/a	7 July	n/a	n/a
Growing days	26 days	n/a	26 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 Hot Sulphur Spgs 2 SW standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Hot Sulphur Spgs 2 SW 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 2026-10-13 (13 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).