White Sulphur Springs Weather Records (USC00248927)

Record envelope, standing records and threshold days for White Sulphur Springs (USC00248927), Montana, United States, with 85 years of record.

Key Facts for White Sulphur Springs

White Sulphur Springs (USC00248927) is a weather station in Montana, United States at 46.54 latitude and -110.90 longitude, 1,573 m (5,160 ft) above sea level.
The station reports from 1894 to 1978, 85 years of record.
1,464 records set at White Sulphur Springs still stand.
Records are tracked for tmax, tmin, prcp, snow: an element needs 30 years of data to be eligible.
White Sulphur Springs tied a daily record high minimum temperature of 8.9 C (48.0 F) on 11 October 1978.

About the Station

Location: Montana, United States, 46.54 latitude, -110.90 longitude.
Elevation: 1,573 m (5,160 ft).
Period of record: 1894 to 1978, 85 years.
Eligible elements: tmax, tmin, prcp, 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 White Sulphur Springs. 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 White Sulphur Springs, with 2026 drawn through them
Month	Highest record high	Lowest record low	2026 highest maximum	2026 lowest minimum
Jan	15.6 C (60.1 F)	-41.1 C (-42.0 F)	n/a	n/a
Feb	25.6 C (78.1 F)	-40.6 C (-41.1 F)	n/a	n/a
Mar	29.4 C (84.9 F)	-35.6 C (-32.1 F)	n/a	n/a
Apr	31.7 C (89.1 F)	-21.7 C (-7.1 F)	n/a	n/a
May	35.6 C (96.1 F)	-13.3 C (8.1 F)	n/a	n/a
Jun	36.7 C (98.1 F)	-5.6 C (21.9 F)	n/a	n/a
Jul	39.4 C (102.9 F)	-2.2 C (28.0 F)	n/a	n/a
Aug	37.8 C (100.0 F)	-1.7 C (28.9 F)	n/a	n/a
Sep	35.6 C (96.1 F)	-9.4 C (15.1 F)	n/a	n/a
Oct	28.3 C (82.9 F)	-23.3 C (-9.9 F)	n/a	n/a
Nov	21.1 C (70.0 F)	-39.4 C (-38.9 F)	n/a	n/a
Dec	17.2 C (63.0 F)	-39.4 C (-38.9 F)	n/a	n/a

Which Years Hold Standing Records

1,464 standing records

1,464 records at White Sulphur Springs still stand. 1930 holds the most, with 61.

Standing records at White Sulphur Springs by the year they were set
Year set	Standing records
1894	20
1895	34
1896	29
1911	10
1912	13
1913	20
1914	15
1915	10
1916	35
1917	24
1918	37
1919	42
1920	14
1921	32
1922	23
1923	15
1924	33
1925	19
1927	3
1928	16
1929	35
1930	61
1931	44
1932	54
1933	34
1934	23
1937	23
1938	21
1939	50
1940	15
1941	6
1942	12
1943	18
1944	17
1945	20
1946	8
1947	15
1948	15
1949	20
1950	33
1951	27
1952	12
1953	21
1954	27
1955	14
1956	20
1957	20
1958	11
1959	21
1960	10
1961	19
1962	24
1963	16
1964	11
1965	24
1966	15
1967	16
1968	15
1969	22
1970	15
1971	10
1972	35
1973	17
1974	19
1975	26
1976	7
1977	12
1978	10

Wettest Day of Each Month

Sep: 50.8 mm (2.0 in)

The wettest day on record for each calendar month at White Sulphur Springs. The most was 50.8 mm (2.0 in) on 29 September 1931.

Record daily precipitation for each month at White Sulphur Springs
Month	Record daily precipitation (mm)	Date
Jan	22.9 mm (0.9 in)	20 January 1964
Feb	38.1 mm (1.5 in)	19 February 1949
Mar	24.1 mm (0.9 in)	6 March 1950
Apr	46.5 mm (1.8 in)	30 April 1951
May	39.4 mm (1.6 in)	19 May 1938
Jun	43.2 mm (1.7 in)	4 June 1963
Jul	33.0 mm (1.3 in)	7 July 1975
Aug	46.7 mm (1.8 in)	20 August 1974
Sep	50.8 mm (2.0 in)	29 September 1931
Oct	38.1 mm (1.5 in)	7 October 1930
Nov	20.3 mm (0.8 in)	9 November 1940
Dec	25.4 mm (1.0 in)	11 December 1929

Period of Record Coverage

1894 to 1978

68 years of record at White Sulphur Springs, 1894 to 1978. 7 years have data for under 90 percent of days and are left out of rankings: 1894, 1896, 1911, 1925, 1927, 1934, 1978.

Days with data per year at White Sulphur Springs
Year	Days with data	Share of year	Complete
1894	265	73%	No
1895	361	99%	Yes
1896	272	74%	No
1911	135	37%	No
1912	364	99%	Yes
1913	365	100%	Yes
1914	364	100%	Yes
1915	361	99%	Yes
1916	364	99%	Yes
1917	365	100%	Yes
1918	364	100%	Yes
1919	365	100%	Yes
1920	366	100%	Yes
1921	364	100%	Yes
1922	361	99%	Yes
1923	359	98%	Yes
1924	361	99%	Yes
1925	304	83%	No
1927	31	8%	No
1928	366	100%	Yes
1929	361	99%	Yes
1930	363	99%	Yes
1931	364	100%	Yes
1932	364	99%	Yes
1933	363	99%	Yes
1934	151	41%	No
1937	333	91%	Yes
1938	340	93%	Yes
1939	365	100%	Yes
1940	365	100%	Yes
1941	364	100%	Yes
1942	334	92%	Yes
1943	361	99%	Yes
1944	365	100%	Yes
1945	364	100%	Yes
1946	362	99%	Yes
1947	364	100%	Yes
1948	365	100%	Yes
1949	364	100%	Yes
1950	362	99%	Yes
1951	363	99%	Yes
1952	364	99%	Yes
1953	365	100%	Yes
1954	363	99%	Yes
1955	365	100%	Yes
1956	366	100%	Yes
1957	363	99%	Yes
1958	364	100%	Yes
1959	364	100%	Yes
1960	364	99%	Yes
1961	363	99%	Yes
1962	363	99%	Yes
1963	365	100%	Yes
1964	364	99%	Yes
1965	365	100%	Yes
1966	365	100%	Yes
1967	365	100%	Yes
1968	365	100%	Yes
1969	365	100%	Yes
1970	365	100%	Yes
1971	365	100%	Yes
1972	366	100%	Yes
1973	365	100%	Yes
1974	365	100%	Yes
1975	365	100%	Yes
1976	366	100%	Yes
1977	356	98%	Yes
1978	274	75%	No

Latest Records

Latest records at White Sulphur Springs
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
11 October 1978	White Sulphur Springs, US	daily high min (Tie)	8.9 C (48.0 F)	tie	36 years	4 of 100 (Routine)
10 September 1978	White Sulphur Springs, US	daily high min (Tie)	10.0 C (50.0 F)	tie	52 years	5 of 100 (Routine)
7 September 1978	White Sulphur Springs, US	daily high min	13.9 C (57.0 F)	2.8 C (5.0 F)	45 years	27 of 100 (Routine)
18 August 1978	White Sulphur Springs, US	daily low max	13.9 C (57.0 F)	1.7 C (3.1 F)	9 years	13 of 100 (Routine)
17 August 1978	White Sulphur Springs, US	daily rain	11.4 mm (0.4 in)	2.5 mm (0.10 in)	63 years	20 of 100 (Routine)
17 August 1978	White Sulphur Springs, US	daily low max	14.4 C (57.9 F)	2.8 C (5.0 F)	24 years	21 of 100 (Routine)
17 July 1978	White Sulphur Springs, US	daily rain	14.0 mm (0.6 in)	2.8 mm (0.11 in)	32 years	20 of 100 (Routine)
5 July 1978	White Sulphur Springs, US	daily rain	11.4 mm (0.4 in)	2.3 mm (0.09 in)	83 years	20 of 100 (Routine)
4 July 1978	White Sulphur Springs, US	daily rain	18.3 mm (0.7 in)	8.1 mm (0.32 in)	57 years	20 of 100 (Routine)
24 June 1978	White Sulphur Springs, US	daily rain	40.4 mm (1.6 in)	21.3 mm (0.8 in)	47 years	53 of 100 (Notable)
20 June 1978	White Sulphur Springs, US	daily low min	-1.1 C (30.0 F)	1.1 C (2.0 F)	17 years	16 of 100 (Routine)
8 May 1978	White Sulphur Springs, US	daily rain	15.2 mm (0.6 in)	0.2 mm (0.01 in)	25 years	15 of 100 (Routine)
31 March 1978	White Sulphur Springs, US	daily high max	21.1 C (70.0 F)	2.2 C (4.0 F)	55 years	27 of 100 (Routine)
30 March 1978	White Sulphur Springs, US	daily high min	5.6 C (42.1 F)	2.3 C (4.1 F)	60 years	29 of 100 (Routine)
30 March 1978	White Sulphur Springs, US	daily high max	21.1 C (70.0 F)	1.7 C (3.1 F)	12 years	13 of 100 (Routine)
29 March 1978	White Sulphur Springs, US	daily high max	18.9 C (66.0 F)	1.1 C (2.0 F)	35 years	19 of 100 (Routine)
7 March 1978	White Sulphur Springs, US	daily high max	11.7 C (53.1 F)	0.6 C (1.1 F)	36 years	19 of 100 (Routine)
9 January 1978	White Sulphur Springs, US	daily rain	12.7 mm (0.5 in)	9.7 mm (0.38 in)	7 years	20 of 100 (Routine)
1 January 1978	White Sulphur Springs, US	daily low min	-32.8 C (-27.0 F)	2.8 C (5.0 F)	50 years	25 of 100 (Routine)
12 December 1977	White Sulphur Springs, US	daily high min	2.2 C (36.0 F)	1.1 C (2.0 F)	56 years	25 of 100 (Routine)

Climate Trend

58 complete years, 1895 to 1977

One stripe for each of 58 complete years at White Sulphur Springs, 1895 to 1977. Blue stripes are years cooler than the station's own mean of 5.2 C (41.4 F); red stripes are warmer. The coolest year was 1951, at 3.1 C (37.6 F), and the warmest was 1931, at 7.9 C (46.2 F). The strongest colour marks a difference of 2.7 C (4.9 F).

Annual mean temperature at White Sulphur Springs as warming stripes, 1895 to 1977
Year	Annual mean temperature	Difference from the station mean
1895	4.6 C	-0.65 C
1912	4.4 C	-0.85 C
1913	4.5 C	-0.74 C
1914	5.6 C	+0.33 C
1915	5.7 C	+0.45 C
1916	3.2 C	-2.02 C
1917	3.9 C	-1.34 C
1918	4.8 C	-0.42 C
1919	4.6 C	-0.61 C
1920	4.0 C	-1.20 C
1921	5.2 C	-0.02 C
1922	4.0 C	-1.28 C
1923	6.0 C	+0.75 C
1924	5.2 C	-0.02 C
1928	6.1 C	+0.90 C
1929	6.0 C	+0.75 C
1930	6.9 C	+1.66 C
1931	7.9 C	+2.65 C
1932	6.3 C	+1.07 C
1933	6.7 C	+1.47 C
1939	7.4 C	+2.14 C
1940	6.7 C	+1.47 C
1941	6.1 C	+0.84 C
1943	5.0 C	-0.21 C
1944	4.7 C	-0.55 C
1945	4.3 C	-0.97 C
1946	5.1 C	-0.15 C
1947	5.0 C	-0.20 C
1948	4.4 C	-0.88 C
1949	4.4 C	-0.89 C
1950	4.1 C	-1.13 C
1951	3.1 C	-2.14 C
1952	5.2 C	-0.09 C
1953	6.7 C	+1.43 C
1954	5.5 C	+0.26 C
1955	3.7 C	-1.53 C
1956	5.2 C	-0.08 C
1957	4.9 C	-0.36 C
1958	6.1 C	+0.88 C
1959	4.8 C	-0.41 C
1960	5.3 C	+0.01 C
1961	6.3 C	+1.02 C
1962	5.5 C	+0.22 C
1963	6.1 C	+0.84 C
1964	5.0 C	-0.20 C
1965	4.9 C	-0.33 C
1966	5.8 C	+0.52 C
1967	5.2 C	-0.06 C
1968	4.9 C	-0.38 C
1969	4.8 C	-0.48 C
1970	5.1 C	-0.16 C
1971	4.9 C	-0.35 C
1972	4.8 C	-0.40 C
1973	5.3 C	+0.10 C
1974	5.9 C	+0.65 C
1975	4.1 C	-1.16 C
1976	6.2 C	+0.93 C
1977	6.0 C	+0.73 C

The fitted trend in annual mean temperature here over 1895 to 1977 is 0.04 C (-0.09 to 0.16) per decade. The interval includes zero, so the trend is not clearly different from zero. In Fahrenheit: 0.1 F (-0.2 to 0.3) per decade. The slope is a straight line fitted to 58 complete years; the brackets give its 95 percent interval.

Fitted temperature trends per decade at White Sulphur Springs
Measure	Per decade (C)	Per decade (F)	Period	Complete years	Reading
Annual mean temperature	0.04 C (-0.09 to 0.16) per decade	0.1 F (-0.2 to 0.3) per decade	1895 to 1977	58	Not clearly different from zero
Mean daily maximum	-0.02 C (-0.18 to 0.14) per decade	-0.03 F (-0.32 to 0.25) per decade	1895 to 1977	58	Not clearly different from zero
Mean daily minimum	0.09 C (-0.02 to 0.20) per decade	0.16 F (-0.04 to 0.36) per decade	1895 to 1977	58	Not clearly different from zero

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

1894 to 1978

Yearly extremes at White Sulphur Springs: 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)	1939	33.9 C (93.0 F)	68
Coldest night (TNn)	-41.1 C (-42.0 F)	1916	-33.6 C (-28.5 F)	68
Wettest day (Rx1day)	50.8 mm (2.0 in)	1931	23.8 mm (0.9 in)	68
Wettest five days (Rx5day)	108.0 mm (4.3 in)	1930	45.2 mm (1.8 in)	68
Longest dry spell (CDD)	83 days	1929	29 days	68

Hottest day (TXx)

The hottest day of the year at White Sulphur Springs, 1894 to 1978. The record is 39.4 C (102.9 F) in 1939, marked on the chart; the median year is 33.9 C (93.0 F).

Hottest day (TXx) at White Sulphur Springs by year
Year	Hottest day (TXx)
1894	31.1 C (88.0 F)
1895	32.2 C (90.0 F)
1896	36.1 C (97.0 F)
1911	30.0 C (86.0 F)
1912	31.1 C (88.0 F)
1913	35.0 C (95.0 F)
1914	31.7 C (89.1 F)
1915	30.0 C (86.0 F)
1916	30.6 C (87.1 F)
1917	33.9 C (93.0 F)
1918	31.7 C (89.1 F)
1919	34.4 C (93.9 F)
1920	32.8 C (91.0 F)
1921	33.9 C (93.0 F)
1922	30.6 C (87.1 F)
1923	35.0 C (95.0 F)
1924	36.1 C (97.0 F)
1925	36.7 C (98.1 F)
1927	8.9 C (48.0 F)
1928	36.7 C (98.1 F)
1929	36.7 C (98.1 F)
1930	36.7 C (98.1 F)
1931	37.8 C (100.0 F)
1932	36.7 C (98.1 F)
1933	35.6 C (96.1 F)
1934	35.6 C (96.1 F)
1937	36.7 C (98.1 F)
1938	35.0 C (95.0 F)
1939	39.4 C (102.9 F)
1940	37.8 C (100.0 F)
1941	35.6 C (96.1 F)
1942	32.8 C (91.0 F)
1943	33.9 C (93.0 F)
1944	31.1 C (88.0 F)
1945	33.9 C (93.0 F)
1946	32.8 C (91.0 F)
1947	35.6 C (96.1 F)
1948	31.7 C (89.1 F)
1949	35.0 C (95.0 F)
1950	31.1 C (88.0 F)
1951	34.4 C (93.9 F)
1952	33.3 C (91.9 F)
1953	36.1 C (97.0 F)
1954	35.6 C (96.1 F)
1955	35.0 C (95.0 F)
1956	32.2 C (90.0 F)
1957	33.3 C (91.9 F)
1958	32.8 C (91.0 F)
1959	33.9 C (93.0 F)
1960	36.1 C (97.0 F)
1961	37.2 C (99.0 F)
1962	31.7 C (89.1 F)
1963	37.2 C (99.0 F)
1964	34.4 C (93.9 F)
1965	32.8 C (91.0 F)
1966	33.3 C (91.9 F)
1967	33.3 C (91.9 F)
1968	31.1 C (88.0 F)
1969	35.0 C (95.0 F)
1970	33.9 C (93.0 F)
1971	33.9 C (93.0 F)
1972	31.7 C (89.1 F)
1973	34.4 C (93.9 F)
1974	32.8 C (91.0 F)
1975	32.8 C (91.0 F)
1976	32.8 C (91.0 F)
1977	33.9 C (93.0 F)
1978	31.7 C (89.1 F)

Coldest night (TNn)

The coldest night of the year at White Sulphur Springs, 1894 to 1978. The record is -41.1 C (-42.0 F) in 1916, marked on the chart; the median year is -33.6 C (-28.5 F).

Coldest night (TNn) at White Sulphur Springs by year
Year	Coldest night (TNn)
1894	-28.3 C (-18.9 F)
1895	-29.4 C (-20.9 F)
1896	-30.0 C (-22.0 F)
1911	-33.3 C (-27.9 F)
1912	-31.7 C (-25.1 F)
1913	-31.7 C (-25.1 F)
1914	-36.1 C (-33.0 F)
1915	-30.0 C (-22.0 F)
1916	-41.1 C (-42.0 F)
1917	-35.0 C (-31.0 F)
1918	-39.4 C (-38.9 F)
1919	-39.4 C (-38.9 F)
1920	-35.6 C (-32.1 F)
1921	-30.0 C (-22.0 F)
1922	-33.9 C (-29.0 F)
1923	-39.4 C (-38.9 F)
1924	-38.9 C (-38.0 F)
1925	-22.2 C (-8.0 F)
1927	-39.4 C (-38.9 F)
1928	-31.7 C (-25.1 F)
1929	-38.3 C (-36.9 F)
1930	-38.9 C (-38.0 F)
1931	-25.6 C (-14.1 F)
1932	-35.6 C (-32.1 F)
1933	-38.9 C (-38.0 F)
1934	-25.6 C (-14.1 F)
1937	-28.3 C (-18.9 F)
1938	-26.1 C (-15.0 F)
1939	-40.6 C (-41.1 F)
1940	-32.2 C (-26.0 F)
1941	-31.7 C (-25.1 F)
1942	-31.1 C (-24.0 F)
1943	-35.6 C (-32.1 F)
1944	-32.8 C (-27.0 F)
1945	-33.9 C (-29.0 F)
1946	-28.9 C (-20.0 F)
1947	-28.9 C (-20.0 F)
1948	-32.8 C (-27.0 F)
1949	-37.8 C (-36.0 F)
1950	-36.7 C (-34.1 F)
1951	-33.9 C (-29.0 F)
1952	-34.4 C (-29.9 F)
1953	-25.6 C (-14.1 F)
1954	-38.9 C (-38.0 F)
1955	-36.7 C (-34.1 F)
1956	-35.6 C (-32.1 F)
1957	-39.4 C (-38.9 F)
1958	-25.6 C (-14.1 F)
1959	-39.4 C (-38.9 F)
1960	-31.7 C (-25.1 F)
1961	-33.3 C (-27.9 F)
1962	-37.2 C (-35.0 F)
1963	-37.2 C (-35.0 F)
1964	-37.2 C (-35.0 F)
1965	-33.3 C (-27.9 F)
1966	-30.0 C (-22.0 F)
1967	-31.7 C (-25.1 F)
1968	-37.2 C (-35.0 F)
1969	-33.9 C (-29.0 F)
1970	-28.9 C (-20.0 F)
1971	-30.0 C (-22.0 F)
1972	-36.7 C (-34.1 F)
1973	-35.0 C (-31.0 F)
1974	-35.6 C (-32.1 F)
1975	-28.9 C (-20.0 F)
1976	-32.2 C (-26.0 F)
1977	-31.1 C (-24.0 F)
1978	-32.8 C (-27.0 F)

Wettest day (Rx1day)

The wettest day of the year at White Sulphur Springs, 1894 to 1978. The record is 50.8 mm (2.0 in) in 1931, marked on the chart; the median year is 23.8 mm (0.9 in).

Wettest day (Rx1day) at White Sulphur Springs by year
Year	Wettest day (Rx1day)
1894	34.3 mm (1.4 in)
1895	17.8 mm (0.7 in)
1896	20.8 mm (0.8 in)
1911	13.7 mm (0.5 in)
1912	22.9 mm (0.9 in)
1913	21.6 mm (0.9 in)
1914	21.1 mm (0.8 in)
1915	21.1 mm (0.8 in)
1916	22.4 mm (0.9 in)
1917	23.9 mm (0.9 in)
1918	25.4 mm (1.0 in)
1919	14.5 mm (0.6 in)
1920	15.7 mm (0.6 in)
1921	21.6 mm (0.9 in)
1922	18.3 mm (0.7 in)
1923	35.6 mm (1.4 in)
1924	12.7 mm (0.5 in)
1925	30.5 mm (1.2 in)
1927	7.6 mm (0.30 in)
1928	21.6 mm (0.9 in)
1929	25.4 mm (1.0 in)
1930	38.1 mm (1.5 in)
1931	50.8 mm (2.0 in)
1932	38.1 mm (1.5 in)
1933	38.1 mm (1.5 in)
1934	12.7 mm (0.5 in)
1937	25.9 mm (1.0 in)
1938	39.4 mm (1.6 in)
1939	20.3 mm (0.8 in)
1940	24.1 mm (0.9 in)
1941	33.8 mm (1.3 in)
1942	24.1 mm (0.9 in)
1943	22.9 mm (0.9 in)
1944	34.3 mm (1.4 in)
1945	22.9 mm (0.9 in)
1946	33.0 mm (1.3 in)
1947	36.8 mm (1.4 in)
1948	25.9 mm (1.0 in)
1949	38.1 mm (1.5 in)
1950	32.5 mm (1.3 in)
1951	46.5 mm (1.8 in)
1952	32.0 mm (1.3 in)
1953	17.3 mm (0.7 in)
1954	21.1 mm (0.8 in)
1955	34.0 mm (1.3 in)
1956	20.3 mm (0.8 in)
1957	29.5 mm (1.2 in)
1958	30.5 mm (1.2 in)
1959	20.3 mm (0.8 in)
1960	27.4 mm (1.1 in)
1961	20.3 mm (0.8 in)
1962	23.6 mm (0.9 in)
1963	43.2 mm (1.7 in)
1964	22.9 mm (0.9 in)
1965	31.2 mm (1.2 in)
1966	23.6 mm (0.9 in)
1967	24.1 mm (0.9 in)
1968	22.9 mm (0.9 in)
1969	22.4 mm (0.9 in)
1970	22.9 mm (0.9 in)
1971	17.0 mm (0.7 in)
1972	13.7 mm (0.5 in)
1973	15.2 mm (0.6 in)
1974	46.7 mm (1.8 in)
1975	33.0 mm (1.3 in)
1976	33.5 mm (1.3 in)
1977	23.1 mm (0.9 in)
1978	40.4 mm (1.6 in)

Wettest five days (Rx5day)

The wettest five days of the year at White Sulphur Springs, 1894 to 1978. The record is 108.0 mm (4.3 in) in 1930, marked on the chart; the median year is 45.2 mm (1.8 in).

Wettest five days (Rx5day) at White Sulphur Springs by year
Year	Wettest five days (Rx5day)
1894	53.9 mm (2.1 in)
1895	17.8 mm (0.7 in)
1896	23.6 mm (0.9 in)
1911	13.7 mm (0.5 in)
1912	46.0 mm (1.8 in)
1913	38.3 mm (1.5 in)
1914	48.5 mm (1.9 in)
1915	53.3 mm (2.1 in)
1916	40.0 mm (1.6 in)
1917	25.6 mm (1.0 in)
1918	56.4 mm (2.2 in)
1919	15.7 mm (0.6 in)
1920	29.9 mm (1.2 in)
1921	33.0 mm (1.3 in)
1922	44.7 mm (1.8 in)
1923	97.9 mm (3.9 in)
1924	20.3 mm (0.8 in)
1925	59.7 mm (2.4 in)
1927	8.4 mm (0.33 in)
1928	47.0 mm (1.9 in)
1929	71.1 mm (2.8 in)
1930	108.0 mm (4.3 in)
1931	57.2 mm (2.3 in)
1932	78.8 mm (3.1 in)
1933	101.6 mm (4.0 in)
1934	35.6 mm (1.4 in)
1937	53.4 mm (2.1 in)
1938	71.6 mm (2.8 in)
1939	41.9 mm (1.6 in)
1940	34.8 mm (1.4 in)
1941	56.6 mm (2.2 in)
1942	38.3 mm (1.5 in)
1943	34.6 mm (1.4 in)
1944	60.5 mm (2.4 in)
1945	43.7 mm (1.7 in)
1946	52.8 mm (2.1 in)
1947	83.8 mm (3.3 in)
1948	52.3 mm (2.1 in)
1949	63.5 mm (2.5 in)
1950	37.1 mm (1.5 in)
1951	53.7 mm (2.1 in)
1952	42.4 mm (1.7 in)
1953	46.7 mm (1.8 in)
1954	38.2 mm (1.5 in)
1955	43.2 mm (1.7 in)
1956	32.2 mm (1.3 in)
1957	54.1 mm (2.1 in)
1958	54.9 mm (2.2 in)
1959	45.7 mm (1.8 in)
1960	34.5 mm (1.4 in)
1961	34.5 mm (1.4 in)
1962	46.4 mm (1.8 in)
1963	69.2 mm (2.7 in)
1964	49.2 mm (1.9 in)
1965	71.1 mm (2.8 in)
1966	43.2 mm (1.7 in)
1967	49.0 mm (1.9 in)
1968	38.9 mm (1.5 in)
1969	46.2 mm (1.8 in)
1970	31.6 mm (1.2 in)
1971	30.0 mm (1.2 in)
1972	22.4 mm (0.9 in)
1973	28.6 mm (1.1 in)
1974	46.7 mm (1.8 in)
1975	38.1 mm (1.5 in)
1976	46.0 mm (1.8 in)
1977	38.8 mm (1.5 in)
1978	40.4 mm (1.6 in)

Longest dry spell (CDD)

The longest dry spell of the year at White Sulphur Springs, 1894 to 1978. The record is 83 days in 1929, marked on the chart; the median year is 29 days.

Longest dry spell (CDD) at White Sulphur Springs by year
Year	Longest dry spell (CDD)
1894	18 days
1895	44 days
1896	28 days
1911	33 days
1912	51 days
1913	35 days
1914	26 days
1915	52 days
1916	50 days
1917	37 days
1918	58 days
1919	61 days
1920	56 days
1921	48 days
1922	32 days
1923	51 days
1924	65 days
1925	23 days
1927	10 days
1928	28 days
1929	83 days
1930	27 days
1931	41 days
1932	36 days
1933	21 days
1934	33 days
1937	32 days
1938	31 days
1939	42 days
1940	22 days
1941	28 days
1942	14 days
1943	26 days
1944	19 days
1945	20 days
1946	16 days
1947	25 days
1948	34 days
1949	27 days
1950	27 days
1951	12 days
1952	29 days
1953	22 days
1954	33 days
1955	25 days
1956	27 days
1957	20 days
1958	19 days
1959	18 days
1960	30 days
1961	28 days
1962	29 days
1963	35 days
1964	23 days
1965	35 days
1966	28 days
1967	31 days
1968	23 days
1969	53 days
1970	44 days
1971	22 days
1972	19 days
1973	39 days
1974	25 days
1975	21 days
1976	24 days
1977	56 days
1978	39 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

58 years with a frost

Across 58 years with a frost, the median last spring frost at White Sulphur Springs falls on 8 June and the median first autumn frost on 6 September, which leaves a median of 86 days between them.

Fitted over all years, the growing season changes by +3.5 days per decade at this station.

Frost dates and growing season at White Sulphur Springs
Measure	Median, all years	Earliest period	Recent period (1948 to 1977)	Recent against earliest	Fitted trend
Last spring frost	8 June	n/a	9 June	n/a	-0.3 days per decade
First autumn frost	6 September	n/a	4 September	n/a	+3.2 days per decade
Growing days	86 days	n/a	85 days	n/a	+3.5 days per decade

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.

Rainfall Return Levels

61 years, 1895 to 1977

A day with at least 25.3 mm (1.0 in) of rain is expected about once in 2 years. A day with at least 55.5 mm (2.2 in) of rain is expected about once in 100 years.

Rainfall return levels at White Sulphur Springs: the daily rain expected about once in a given number of years
Expected about once in	A day with at least	Note
2 years	25.3 mm (1.0 in)
5 years	33.2 mm (1.3 in)
10 years	38.5 mm (1.5 in)
25 years	45.3 mm (1.8 in)
50 years	50.4 mm (2.0 in)
100 years	55.5 mm (2.2 in)	Longer than the 61 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, 61 years of values from 1895 to 1977.

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: 50.8 mm (2.0 in) in 1931; 46.7 mm (1.8 in) in 1974; 46.5 mm (1.8 in) in 1951.

Station Changes

No change in the annual mean temperature of this station was found against its neighbours.

Download the Data

Data for White Sulphur Springs standing records by year: CSV or JSON. Field meanings are on the data page.
Data for White Sulphur Springs 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).