Pullman Exp STN Weather Records (USC00456784)

Record envelope, standing records and threshold days for Pullman Exp STN (USC00456784), Washington, United States, with 62 years of record.

Key Facts for Pullman Exp STN

Pullman Exp STN (USC00456784) is a weather station in Washington, United States at 46.73 latitude and -117.17 longitude, 787 m (2,582 ft) above sea level.
The station reports from 1893 to 1954, 62 years of record.
1,464 records set at Pullman Exp STN still stand.
Records are tracked for tmax, tmin, prcp: an element needs 30 years of data to be eligible.
Pullman Exp STN set a daily record high maximum temperature of 15.0 C (59.0 F) on 24 February 1954.

About the Station

Location: Washington, United States, 46.73 latitude, -117.17 longitude.
Elevation: 787 m (2,582 ft).
Period of record: 1893 to 1954, 62 years.
Eligible elements: tmax, tmin, prcp.

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 Pullman Exp STN. 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 Pullman Exp STN, with 2026 drawn through them
Month	Highest record high	Lowest record low	2026 highest maximum	2026 lowest minimum
Jan	15.0 C (59.0 F)	-29.4 C (-20.9 F)	n/a	n/a
Feb	16.7 C (62.1 F)	-27.8 C (-18.0 F)	n/a	n/a
Mar	21.7 C (71.1 F)	-17.8 C (0.0 F)	n/a	n/a
Apr	31.1 C (88.0 F)	-14.4 C (6.1 F)	n/a	n/a
May	34.4 C (93.9 F)	-4.4 C (24.1 F)	n/a	n/a
Jun	36.1 C (97.0 F)	-1.7 C (28.9 F)	n/a	n/a
Jul	40.0 C (104.0 F)	0.0 C (32.0 F)	n/a	n/a
Aug	38.9 C (102.0 F)	0.0 C (32.0 F)	n/a	n/a
Sep	36.7 C (98.1 F)	-6.1 C (21.0 F)	n/a	n/a
Oct	30.0 C (86.0 F)	-15.6 C (3.9 F)	n/a	n/a
Nov	22.8 C (73.0 F)	-22.2 C (-8.0 F)	n/a	n/a
Dec	17.8 C (64.0 F)	-26.7 C (-16.1 F)	n/a	n/a

Which Years Hold Standing Records

1,464 standing records

1,464 records at Pullman Exp STN still stand. 1924 holds the most, with 53.

Standing records at Pullman Exp STN by the year they were set
Year set	Standing records
1893	27
1894	20
1895	13
1896	37
1897	31
1898	29
1899	40
1900	18
1901	25
1902	19
1903	31
1904	21
1905	32
1906	42
1907	19
1908	31
1909	26
1910	32
1911	19
1912	21
1913	33
1914	22
1915	31
1916	41
1917	44
1918	35
1919	44
1920	21
1921	15
1922	27
1923	18
1924	53
1925	17
1926	22
1927	24
1928	23
1929	22
1930	19
1931	15
1932	14
1933	22
1934	45
1935	15
1936	38
1937	20
1938	12
1939	26
1940	20
1941	12
1942	5
1943	13
1944	14
1945	12
1946	9
1947	6
1948	10
1949	19
1950	34
1951	17
1952	16
1953	23
1954	3

All-Time Record Progression

2 new records

2 all-time records were set at Pullman Exp STN between 27 July 1928 and 20 January 1937. Each dot is a new record.

When Pullman Exp STN set new all-time records
Date	Kind	Detail
1928-07-27	Record high minimum temperature	Record high minimum temperature 25.0 C (77.0 F)
1937-01-20	Record low minimum temperature	Record low minimum temperature -29.4 C (-20.9 F)

Wettest Day of Each Month

Nov: 59.9 mm (2.4 in)

The wettest day on record for each calendar month at Pullman Exp STN. The most was 59.9 mm (2.4 in) on 4 November 1906.

Record daily precipitation for each month at Pullman Exp STN
Month	Record daily precipitation (mm)	Date
Jan	45.7 mm (1.8 in)	13 January 1913
Feb	35.6 mm (1.4 in)	16 February 1901
Mar	43.2 mm (1.7 in)	21 March 1929
Apr	22.9 mm (0.9 in)	4 April 1900
May	35.6 mm (1.4 in)	18 May 1903
Jun	41.4 mm (1.6 in)	26 June 1934
Jul	53.3 mm (2.1 in)	4 July 1902
Aug	39.6 mm (1.6 in)	30 August 1926
Sep	45.7 mm (1.8 in)	16 September 1947
Oct	30.5 mm (1.2 in)	29 October 1950
Nov	59.9 mm (2.4 in)	4 November 1906
Dec	50.8 mm (2.0 in)	20 December 1906

Period of Record Coverage

1893 to 1954

62 years of record at Pullman Exp STN, 1893 to 1954. 11 years have data for under 90 percent of days and are left out of rankings: 1893, 1895, 1900, 1901, 1904, 1905, 1907, 1909 and others.

Days with data per year at Pullman Exp STN
Year	Days with data	Share of year	Complete
1893	299	82%	No
1894	353	97%	Yes
1895	233	64%	No
1896	358	98%	Yes
1897	351	96%	Yes
1898	358	98%	Yes
1899	358	98%	Yes
1900	265	73%	No
1901	247	68%	No
1902	339	93%	Yes
1903	334	92%	Yes
1904	319	87%	No
1905	328	90%	No
1906	348	95%	Yes
1907	250	68%	No
1908	354	97%	Yes
1909	310	85%	No
1910	342	94%	Yes
1911	350	96%	Yes
1912	331	90%	Yes
1913	356	98%	Yes
1914	359	98%	Yes
1915	358	98%	Yes
1916	358	98%	Yes
1917	358	98%	Yes
1918	353	97%	Yes
1919	361	99%	Yes
1920	365	100%	Yes
1921	357	98%	Yes
1922	361	99%	Yes
1923	365	100%	Yes
1924	325	89%	No
1925	354	97%	Yes
1926	351	96%	Yes
1927	353	97%	Yes
1928	349	95%	Yes
1929	360	99%	Yes
1930	359	98%	Yes
1931	356	98%	Yes
1932	359	98%	Yes
1933	362	99%	Yes
1934	332	91%	Yes
1935	348	95%	Yes
1936	356	97%	Yes
1937	362	99%	Yes
1938	365	100%	Yes
1939	362	99%	Yes
1940	353	96%	Yes
1941	346	95%	Yes
1942	353	97%	Yes
1943	313	86%	No
1944	355	97%	Yes
1945	350	96%	Yes
1946	347	95%	Yes
1947	353	97%	Yes
1948	353	96%	Yes
1949	357	98%	Yes
1950	364	100%	Yes
1951	364	100%	Yes
1952	366	100%	Yes
1953	365	100%	Yes
1954	59	16%	No

Latest Records

Latest records at Pullman Exp STN
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
24 February 1954	Pullman Exp STN, US	daily high max	15.0 C (59.0 F)	3.9 C (7.0 F)	32 years	23 of 100 (Routine)
24 February 1954	Pullman Exp STN, US	daily high min	4.4 C (39.9 F)	0.5 C (0.9 F)	57 years	23 of 100 (Routine)
8 February 1954	Pullman Exp STN, US	daily high max	12.8 C (55.0 F)	2.2 C (4.0 F)	0 years	10 of 100 (Routine)
10 December 1953	Pullman Exp STN, US	daily rain	13.0 mm (0.5 in)	1.6 mm (0.06 in)	20 years	14 of 100 (Routine)
15 November 1953	Pullman Exp STN, US	daily high min (Tie)	7.2 C (45.0 F)	tie	19 years	2 of 100 (Routine)
14 November 1953	Pullman Exp STN, US	daily high max	16.1 C (61.0 F)	0.5 C (0.9 F)	16 years	12 of 100 (Routine)
12 November 1953	Pullman Exp STN, US	daily high max (Tie)	15.6 C (60.1 F)	tie	14 years	2 of 100 (Routine)
11 November 1953	Pullman Exp STN, US	daily high max	18.3 C (64.9 F)	2.2 C (4.0 F)	36 years	20 of 100 (Routine)
1 November 1953	Pullman Exp STN, US	daily high min	7.8 C (46.0 F)	0.6 C (1.1 F)	48 years	21 of 100 (Routine)
31 October 1953	Pullman Exp STN, US	daily high min (Tie)	7.8 C (46.0 F)	tie	39 years	4 of 100 (Routine)
29 October 1953	Pullman Exp STN, US	daily high max	23.3 C (73.9 F)	1.6 C (2.9 F)	8 years	10 of 100 (Routine)
14 October 1953	Pullman Exp STN, US	daily high max	24.4 C (75.9 F)	0.5 C (0.9 F)	39 years	17 of 100 (Routine)
9 October 1953	Pullman Exp STN, US	daily high min	12.8 C (55.0 F)	2.2 C (4.0 F)	2 years	11 of 100 (Routine)
22 September 1953	Pullman Exp STN, US	daily high max	30.6 C (87.1 F)	0.6 C (1.1 F)	3 years	7 of 100 (Routine)
15 September 1953	Pullman Exp STN, US	daily high max	32.2 C (90.0 F)	1.1 C (2.0 F)	16 years	11 of 100 (Routine)
12 September 1953	Pullman Exp STN, US	monthly high max (Tie)	36.7 C (98.1 F)	tie	3 years	4 of 100 (Routine)
11 September 1953	Pullman Exp STN, US	daily high max (Tie)	32.8 C (91.0 F)	tie	53 years	5 of 100 (Routine)
24 August 1953	Pullman Exp STN, US	daily rain	12.4 mm (0.5 in)	10.9 mm (0.4 in)	50 years	20 of 100 (Routine)
8 August 1953	Pullman Exp STN, US	daily rain (Tie)	6.9 mm (0.27 in)	tie	36 years	4 of 100 (Routine)
4 August 1953	Pullman Exp STN, US	daily rain	3.3 mm (0.13 in)	0.8 mm (0.03 in)	42 years	19 of 100 (Routine)

Climate Trend

47 complete years, 1894 to 1953

One stripe for each of 47 complete years at Pullman Exp STN, 1894 to 1953. Blue stripes are years cooler than the station's own mean of 8.7 C (47.7 F); red stripes are warmer. The coolest year was 1916, at 6.7 C (44.0 F), and the warmest was 1940, at 10.4 C (50.6 F). The strongest colour marks a difference of 2.1 C (3.8 F).

Annual mean temperature at Pullman Exp STN as warming stripes, 1894 to 1953
Year	Annual mean temperature	Difference from the station mean
1894	7.8 C	-0.91 C
1896	8.5 C	-0.23 C
1897	8.5 C	-0.23 C
1898	8.1 C	-0.65 C
1899	7.8 C	-0.95 C
1902	8.5 C	-0.23 C
1906	9.7 C	+0.93 C
1908	9.1 C	+0.41 C
1910	9.2 C	+0.49 C
1911	8.1 C	-0.65 C
1913	7.8 C	-0.96 C
1914	9.2 C	+0.49 C
1915	9.4 C	+0.68 C
1916	6.7 C	-2.04 C
1917	8.8 C	+0.11 C
1918	9.5 C	+0.78 C
1919	8.0 C	-0.71 C
1920	8.1 C	-0.60 C
1921	8.7 C	-0.06 C
1922	7.8 C	-0.94 C
1923	8.6 C	-0.15 C
1925	10.2 C	+1.42 C
1926	9.6 C	+0.86 C
1927	8.1 C	-0.60 C
1929	7.7 C	-1.07 C
1930	8.3 C	-0.43 C
1931	8.6 C	-0.09 C
1932	8.6 C	-0.16 C
1933	9.0 C	+0.25 C
1935	8.5 C	-0.19 C
1936	9.0 C	+0.25 C
1937	8.4 C	-0.35 C
1938	9.5 C	+0.76 C
1939	10.1 C	+1.37 C
1940	10.4 C	+1.63 C
1941	9.8 C	+1.03 C
1942	8.6 C	-0.09 C
1944	9.1 C	+0.34 C
1945	8.9 C	+0.17 C
1946	8.8 C	+0.08 C
1947	9.3 C	+0.52 C
1948	7.8 C	-0.90 C
1949	8.3 C	-0.40 C
1950	8.3 C	-0.47 C
1951	8.6 C	-0.13 C
1952	9.4 C	+0.65 C
1953	9.9 C	+1.19 C

The annual mean temperature here has risen by 0.13 C (0.00 to 0.26) per decade over 1894 to 1953. In Fahrenheit: 0.23 F (0.00 to 0.46) per decade. The slope is a straight line fitted to 47 complete years; the brackets give its 95 percent interval.

Fitted temperature trends per decade at Pullman Exp STN
Measure	Per decade (C)	Per decade (F)	Period	Complete years	Reading
Annual mean temperature	0.13 C (0.00 to 0.26) per decade	0.23 F (0.00 to 0.46) per decade	1894 to 1953	47	Rise
Mean daily maximum	0.1 C (-0.1 to 0.2) per decade	0.1 F (-0.2 to 0.4) per decade	1894 to 1953	47	Not clearly different from zero
Mean daily minimum	0.2 C (0.1 to 0.3) per decade	0.4 F (0.1 to 0.6) per decade	1894 to 1953	47	Rise

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

1893 to 1954

Yearly extremes at Pullman Exp STN: 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)	1905	36.7 C (98.1 F)	62
Coldest night (TNn)	-29.4 C (-20.9 F)	1937	-20.0 C (-4.0 F)	62
Wettest day (Rx1day)	59.9 mm (2.4 in)	1906	29.0 mm (1.1 in)	62
Wettest five days (Rx5day)	92.3 mm (3.6 in)	1931	49.1 mm (1.9 in)	62
Longest dry spell (CDD)	72 days	1931	36 days	62

Hottest day (TXx)

The hottest day of the year at Pullman Exp STN, 1893 to 1954. The record is 40.0 C (104.0 F) in 1905, marked on the chart; the median year is 36.7 C (98.1 F).

Hottest day (TXx) at Pullman Exp STN by year
Year	Hottest day (TXx)
1893	36.7 C (98.1 F)
1894	36.7 C (98.1 F)
1895	32.2 C (90.0 F)
1896	36.7 C (98.1 F)
1897	37.8 C (100.0 F)
1898	38.9 C (102.0 F)
1899	35.6 C (96.1 F)
1900	38.3 C (100.9 F)
1901	35.0 C (95.0 F)
1902	33.9 C (93.0 F)
1903	38.3 C (100.9 F)
1904	38.3 C (100.9 F)
1905	40.0 C (104.0 F)
1906	38.3 C (100.9 F)
1907	35.6 C (96.1 F)
1908	38.9 C (102.0 F)
1909	37.8 C (100.0 F)
1910	37.2 C (99.0 F)
1911	37.2 C (99.0 F)
1912	36.7 C (98.1 F)
1913	37.8 C (100.0 F)
1914	39.4 C (102.9 F)
1915	37.8 C (100.0 F)
1916	34.4 C (93.9 F)
1917	37.2 C (99.0 F)
1918	39.4 C (102.9 F)
1919	37.8 C (100.0 F)
1920	37.8 C (100.0 F)
1921	35.6 C (96.1 F)
1922	36.7 C (98.1 F)
1923	35.6 C (96.1 F)
1924	36.7 C (98.1 F)
1925	37.2 C (99.0 F)
1926	36.1 C (97.0 F)
1927	34.4 C (93.9 F)
1928	39.4 C (102.9 F)
1929	36.7 C (98.1 F)
1930	34.4 C (93.9 F)
1931	38.9 C (102.0 F)
1932	36.1 C (97.0 F)
1933	37.8 C (100.0 F)
1934	38.9 C (102.0 F)
1935	36.7 C (98.1 F)
1936	36.1 C (97.0 F)
1937	35.0 C (95.0 F)
1938	36.1 C (97.0 F)
1939	37.8 C (100.0 F)
1940	35.6 C (96.1 F)
1941	35.6 C (96.1 F)
1942	35.0 C (95.0 F)
1943	32.8 C (91.0 F)
1944	35.6 C (96.1 F)
1945	34.4 C (93.9 F)
1946	35.6 C (96.1 F)
1947	33.9 C (93.0 F)
1948	32.2 C (90.0 F)
1949	36.1 C (97.0 F)
1950	36.7 C (98.1 F)
1951	35.6 C (96.1 F)
1952	36.7 C (98.1 F)
1953	36.7 C (98.1 F)
1954	15.0 C (59.0 F)

Coldest night (TNn)

The coldest night of the year at Pullman Exp STN, 1893 to 1954. The record is -29.4 C (-20.9 F) in 1937, marked on the chart; the median year is -20.0 C (-4.0 F).

Coldest night (TNn) at Pullman Exp STN by year
Year	Coldest night (TNn)
1893	-8.3 C (17.1 F)
1894	-19.4 C (-2.9 F)
1895	-15.6 C (3.9 F)
1896	-22.2 C (-8.0 F)
1897	-23.9 C (-11.0 F)
1898	-17.8 C (0.0 F)
1899	-27.8 C (-18.0 F)
1900	-18.3 C (-0.9 F)
1901	-11.7 C (10.9 F)
1902	-22.2 C (-8.0 F)
1903	-14.4 C (6.1 F)
1904	-11.1 C (12.0 F)
1905	-22.8 C (-9.0 F)
1906	-17.8 C (0.0 F)
1907	-21.1 C (-6.0 F)
1908	-22.2 C (-8.0 F)
1909	-25.6 C (-14.1 F)
1910	-20.0 C (-4.0 F)
1911	-16.7 C (1.9 F)
1912	-25.0 C (-13.0 F)
1913	-22.2 C (-8.0 F)
1914	-22.8 C (-9.0 F)
1915	-17.2 C (1.0 F)
1916	-23.3 C (-9.9 F)
1917	-18.3 C (-0.9 F)
1918	-19.4 C (-2.9 F)
1919	-26.7 C (-16.1 F)
1920	-12.2 C (10.0 F)
1921	-16.1 C (3.0 F)
1922	-25.0 C (-13.0 F)
1923	-18.9 C (-2.0 F)
1924	-26.7 C (-16.1 F)
1925	-12.2 C (10.0 F)
1926	-18.9 C (-2.0 F)
1927	-24.4 C (-11.9 F)
1928	-16.7 C (1.9 F)
1929	-26.1 C (-15.0 F)
1930	-26.7 C (-16.1 F)
1931	-16.1 C (3.0 F)
1932	-22.2 C (-8.0 F)
1933	-27.8 C (-18.0 F)
1934	-5.6 C (21.9 F)
1935	-25.0 C (-13.0 F)
1936	-25.0 C (-13.0 F)
1937	-29.4 C (-20.9 F)
1938	-14.4 C (6.1 F)
1939	-21.1 C (-6.0 F)
1940	-13.9 C (7.0 F)
1941	-12.2 C (10.0 F)
1942	-22.8 C (-9.0 F)
1943	-20.0 C (-4.0 F)
1944	-12.8 C (9.0 F)
1945	-14.4 C (6.1 F)
1946	-12.8 C (9.0 F)
1947	-18.9 C (-2.0 F)
1948	-16.1 C (3.0 F)
1949	-25.6 C (-14.1 F)
1950	-28.9 C (-20.0 F)
1951	-20.6 C (-5.1 F)
1952	-22.2 C (-8.0 F)
1953	-6.1 C (21.0 F)
1954	-25.0 C (-13.0 F)

Wettest day (Rx1day)

The wettest day of the year at Pullman Exp STN, 1893 to 1954. The record is 59.9 mm (2.4 in) in 1906, marked on the chart; the median year is 29.0 mm (1.1 in).

Wettest day (Rx1day) at Pullman Exp STN by year
Year	Wettest day (Rx1day)
1893	29.0 mm (1.1 in)
1894	29.2 mm (1.1 in)
1895	31.8 mm (1.3 in)
1896	33.3 mm (1.3 in)
1897	29.5 mm (1.2 in)
1898	19.1 mm (0.8 in)
1899	23.9 mm (0.9 in)
1900	39.9 mm (1.6 in)
1901	35.6 mm (1.4 in)
1902	53.3 mm (2.1 in)
1903	35.6 mm (1.4 in)
1904	34.3 mm (1.4 in)
1905	31.0 mm (1.2 in)
1906	59.9 mm (2.4 in)
1907	22.9 mm (0.9 in)
1908	27.7 mm (1.1 in)
1909	29.5 mm (1.2 in)
1910	19.1 mm (0.8 in)
1911	20.8 mm (0.8 in)
1912	31.2 mm (1.2 in)
1913	45.7 mm (1.8 in)
1914	28.7 mm (1.1 in)
1915	21.1 mm (0.8 in)
1916	23.6 mm (0.9 in)
1917	22.9 mm (0.9 in)
1918	12.7 mm (0.5 in)
1919	20.3 mm (0.8 in)
1920	30.5 mm (1.2 in)
1921	22.4 mm (0.9 in)
1922	14.7 mm (0.6 in)
1923	36.3 mm (1.4 in)
1924	32.3 mm (1.3 in)
1925	16.5 mm (0.6 in)
1926	39.6 mm (1.6 in)
1927	35.6 mm (1.4 in)
1928	27.4 mm (1.1 in)
1929	43.2 mm (1.7 in)
1930	33.5 mm (1.3 in)
1931	43.2 mm (1.7 in)
1932	35.3 mm (1.4 in)
1933	45.2 mm (1.8 in)
1934	41.4 mm (1.6 in)
1935	38.1 mm (1.5 in)
1936	23.6 mm (0.9 in)
1937	40.1 mm (1.6 in)
1938	19.8 mm (0.8 in)
1939	26.4 mm (1.0 in)
1940	29.0 mm (1.1 in)
1941	21.8 mm (0.9 in)
1942	20.3 mm (0.8 in)
1943	24.4 mm (1.0 in)
1944	18.8 mm (0.7 in)
1945	28.4 mm (1.1 in)
1946	18.3 mm (0.7 in)
1947	45.7 mm (1.8 in)
1948	33.8 mm (1.3 in)
1949	20.1 mm (0.8 in)
1950	30.5 mm (1.2 in)
1951	26.2 mm (1.0 in)
1952	24.4 mm (1.0 in)
1953	24.9 mm (1.0 in)
1954	18.8 mm (0.7 in)

Wettest five days (Rx5day)

The wettest five days of the year at Pullman Exp STN, 1893 to 1954. The record is 92.3 mm (3.6 in) in 1931, marked on the chart; the median year is 49.1 mm (1.9 in).

Wettest five days (Rx5day) at Pullman Exp STN by year
Year	Wettest five days (Rx5day)
1893	83.0 mm (3.3 in)
1894	40.3 mm (1.6 in)
1895	43.1 mm (1.7 in)
1896	56.4 mm (2.2 in)
1897	51.6 mm (2.0 in)
1898	44.7 mm (1.8 in)
1899	47.9 mm (1.9 in)
1900	59.7 mm (2.4 in)
1901	49.8 mm (2.0 in)
1902	60.0 mm (2.4 in)
1903	44.2 mm (1.7 in)
1904	53.3 mm (2.1 in)
1905	49.2 mm (1.9 in)
1906	51.9 mm (2.0 in)
1907	45.4 mm (1.8 in)
1908	35.0 mm (1.4 in)
1909	57.0 mm (2.2 in)
1910	47.8 mm (1.9 in)
1911	39.4 mm (1.6 in)
1912	45.2 mm (1.8 in)
1913	61.0 mm (2.4 in)
1914	67.9 mm (2.7 in)
1915	36.1 mm (1.4 in)
1916	44.9 mm (1.8 in)
1917	61.9 mm (2.4 in)
1918	33.1 mm (1.3 in)
1919	50.8 mm (2.0 in)
1920	50.4 mm (2.0 in)
1921	55.9 mm (2.2 in)
1922	31.4 mm (1.2 in)
1923	56.4 mm (2.2 in)
1924	29.0 mm (1.1 in)
1925	36.0 mm (1.4 in)
1926	54.5 mm (2.1 in)
1927	69.4 mm (2.7 in)
1928	54.5 mm (2.1 in)
1929	84.6 mm (3.3 in)
1930	48.6 mm (1.9 in)
1931	92.3 mm (3.6 in)
1932	65.8 mm (2.6 in)
1933	80.3 mm (3.2 in)
1934	44.7 mm (1.8 in)
1935	40.9 mm (1.6 in)
1936	48.3 mm (1.9 in)
1937	48.7 mm (1.9 in)
1938	30.2 mm (1.2 in)
1939	50.7 mm (2.0 in)
1940	53.2 mm (2.1 in)
1941	43.5 mm (1.7 in)
1942	40.1 mm (1.6 in)
1943	39.9 mm (1.6 in)
1944	26.5 mm (1.0 in)
1945	48.9 mm (1.9 in)
1946	50.4 mm (2.0 in)
1947	59.7 mm (2.4 in)
1948	57.7 mm (2.3 in)
1949	39.9 mm (1.6 in)
1950	56.2 mm (2.2 in)
1951	43.2 mm (1.7 in)
1952	30.8 mm (1.2 in)
1953	71.7 mm (2.8 in)
1954	28.2 mm (1.1 in)

Longest dry spell (CDD)

The longest dry spell of the year at Pullman Exp STN, 1893 to 1954. The record is 72 days in 1931, marked on the chart; the median year is 36 days.

Longest dry spell (CDD) at Pullman Exp STN by year
Year	Longest dry spell (CDD)
1893	48 days
1894	36 days
1895	22 days
1896	27 days
1897	43 days
1898	36 days
1899	25 days
1900	33 days
1901	27 days
1902	42 days
1903	31 days
1904	21 days
1905	26 days
1906	24 days
1907	29 days
1908	28 days
1909	44 days
1910	41 days
1911	32 days
1912	22 days
1913	30 days
1914	54 days
1915	44 days
1916	33 days
1917	69 days
1918	22 days
1919	31 days
1920	21 days
1921	25 days
1922	62 days
1923	35 days
1924	57 days
1925	47 days
1926	58 days
1927	29 days
1928	26 days
1929	44 days
1930	37 days
1931	72 days
1932	38 days
1933	23 days
1934	36 days
1935	40 days
1936	29 days
1937	25 days
1938	40 days
1939	26 days
1940	39 days
1941	27 days
1942	56 days
1943	32 days
1944	46 days
1945	43 days
1946	47 days
1947	40 days
1948	49 days
1949	29 days
1950	20 days
1951	55 days
1952	40 days
1953	44 days
1954	14 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

47 years with a frost

Across 47 years with a frost, the median last spring frost at Pullman Exp STN falls on 30 April and the median first autumn frost on 13 October, which leaves a median of 163 days between them.

Fitted over all years, the growing season changes by +8.3 days per decade at this station.

Frost dates and growing season at Pullman Exp STN
Measure	Median, all years	Earliest period	Recent period (1920 to 1953)	Recent against earliest	Fitted trend
Last spring frost	30 April	n/a	24 April	n/a	-4.3 days per decade
First autumn frost	13 October	n/a	18 October	n/a	+4.0 days per decade
Growing days	163 days	n/a	176 days	n/a	+8.3 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

42 years, 1894 to 1953

A day with at least 27.1 mm (1.1 in) of rain is expected about once in 2 years. A day with at least 66.5 mm (2.6 in) of rain is expected about once in 100 years.

Rainfall return levels at Pullman Exp STN: the daily rain expected about once in a given number of years
Expected about once in	A day with at least	Note
2 years	27.1 mm (1.1 in)
5 years	36.9 mm (1.5 in)
10 years	43.6 mm (1.7 in)
25 years	52.5 mm (2.1 in)
50 years	59.4 mm (2.3 in)	Longer than the 42 years of record
100 years	66.5 mm (2.6 in)	Longer than the 42 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, 42 years of values from 1894 to 1953.

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: 59.9 mm (2.4 in) in 1906; 53.3 mm (2.1 in) in 1902; 45.7 mm (1.8 in) in 1913.

Station Changes

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

Download the Data

Data for Pullman Exp STN standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Pullman Exp STN 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 2026-10-17 (17 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).