Gray Weather Records (USC00103825)

Record envelope, standing records and threshold days for Gray (USC00103825), Idaho, United States, with 59 years of record.

Key Facts for Gray

Gray (USC00103825) is a weather station in Idaho, United States at 43.05 latitude and -111.37 longitude, 1,966 m (6,450 ft) above sea level.
The station reports from 1897 to 1955, 59 years of record.
1,464 records set at Gray still stand.
Records are tracked for tmax, tmin, prcp, snow: an element needs 30 years of data to be eligible.
Gray set a daily record low maximum temperature of 5.6 C (42.1 F) on 16 May 1955.

About the Station

Location: Idaho, United States, 43.05 latitude, -111.37 longitude.
Elevation: 1,966 m (6,450 ft).
Period of record: 1897 to 1955, 59 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 Gray. 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 Gray, 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)	-41.1 C (-42.0 F)	n/a	n/a
Feb	15.0 C (59.0 F)	-39.4 C (-38.9 F)	n/a	n/a
Mar	16.7 C (62.1 F)	-36.7 C (-34.1 F)	n/a	n/a
Apr	26.7 C (80.1 F)	-22.2 C (-8.0 F)	n/a	n/a
May	30.0 C (86.0 F)	-12.8 C (9.0 F)	n/a	n/a
Jun	38.3 C (100.9 F)	-5.0 C (23.0 F)	n/a	n/a
Jul	39.4 C (102.9 F)	-4.4 C (24.1 F)	n/a	n/a
Aug	35.6 C (96.1 F)	-6.7 C (19.9 F)	n/a	n/a
Sep	34.4 C (93.9 F)	-16.7 C (1.9 F)	n/a	n/a
Oct	28.9 C (84.0 F)	-17.8 C (0.0 F)	n/a	n/a
Nov	20.6 C (69.1 F)	-32.8 C (-27.0 F)	n/a	n/a
Dec	16.1 C (61.0 F)	-40.0 C (-40.0 F)	n/a	n/a

Which Years Hold Standing Records

1,464 standing records

1,464 records at Gray still stand. 1917 holds the most, with 60.

Standing records at Gray by the year they were set
Year set	Standing records
1897	30
1898	19
1899	48
1916	44
1917	60
1918	50
1919	42
1920	56
1921	12
1922	29
1923	2
1925	44
1926	49
1927	53
1928	32
1929	27
1930	49
1931	34
1932	32
1933	37
1934	57
1935	31
1936	26
1937	17
1938	35
1939	37
1940	26
1941	26
1942	30
1943	22
1944	17
1945	30
1946	34
1947	32
1948	58
1949	28
1950	48
1951	29
1952	36
1953	37
1954	41
1955	18

Wettest Day of Each Month

Feb: 53.3 mm (2.1 in)

The wettest day on record for each calendar month at Gray. The most was 53.3 mm (2.1 in) on 22 February 1936.

Record daily precipitation for each month at Gray
Month	Record daily precipitation (mm)	Date
Jan	25.4 mm (1.0 in)	5 January 1922
Feb	53.3 mm (2.1 in)	22 February 1936
Mar	22.9 mm (0.9 in)	31 March 1931
Apr	53.3 mm (2.1 in)	4 April 1942
May	30.5 mm (1.2 in)	31 May 1917
Jun	52.1 mm (2.1 in)	22 June 1948
Jul	30.5 mm (1.2 in)	27 July 1917
Aug	21.6 mm (0.9 in)	29 August 1951
Sep	26.7 mm (1.1 in)	18 September 1925
Oct	31.8 mm (1.3 in)	27 October 1931
Nov	24.6 mm (1.0 in)	30 November 1948
Dec	24.9 mm (1.0 in)	12 December 1919

Period of Record Coverage

1897 to 1955

42 years of record at Gray, 1897 to 1955. 16 years have data for under 90 percent of days and are left out of rankings: 1897, 1898, 1916, 1917, 1918, 1919, 1920, 1921 and others.

Days with data per year at Gray
Year	Days with data	Share of year	Complete
1897	134	37%	No
1898	273	75%	No
1899	364	100%	Yes
1916	192	52%	No
1917	313	86%	No
1918	256	70%	No
1919	229	63%	No
1920	207	57%	No
1921	116	32%	No
1922	183	50%	No
1923	37	10%	No
1925	354	97%	Yes
1926	342	94%	Yes
1927	355	97%	Yes
1928	335	92%	Yes
1929	301	82%	No
1930	344	94%	Yes
1931	317	87%	No
1932	364	99%	Yes
1933	358	98%	Yes
1934	338	93%	Yes
1935	356	98%	Yes
1936	346	95%	Yes
1937	315	86%	No
1938	349	96%	Yes
1939	351	96%	Yes
1940	345	94%	Yes
1941	346	95%	Yes
1942	319	87%	No
1943	353	97%	Yes
1944	358	98%	Yes
1945	365	100%	Yes
1946	363	99%	Yes
1947	364	100%	Yes
1948	358	98%	Yes
1949	227	62%	No
1950	361	99%	Yes
1951	362	99%	Yes
1952	365	100%	Yes
1953	364	100%	Yes
1954	335	92%	Yes
1955	181	50%	No

Latest Records

Latest records at Gray
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
16 May 1955	Gray, US	daily low max	5.6 C (42.1 F)	2.2 C (4.0 F)	37 years	19 of 100 (Routine)
16 May 1955	Gray, US	daily low min	-6.1 C (21.0 F)	1.7 C (3.1 F)	12 years	12 of 100 (Routine)
15 May 1955	Gray, US	daily low min	-6.7 C (19.9 F)	2.8 C (5.0 F)	37 years	23 of 100 (Routine)
15 May 1955	Gray, US	daily low max	7.2 C (45.0 F)	1.1 C (2.0 F)	9 years	8 of 100 (Routine)
13 May 1955	Gray, US	daily snowfall	0.5 cm (0.2 in)	0.5 cm (0.2 in)	37 years	17 of 100 (Routine)
30 April 1955	Gray, US	daily low min	-8.9 C (16.0 F)	1.1 C (2.0 F)	0 years	7 of 100 (Routine)
4 April 1955	Gray, US	daily low min (Tie)	-16.7 C (1.9 F)	tie	36 years	4 of 100 (Routine)
2 April 1955	Gray, US	daily low min (Tie)	-18.9 C (-2.0 F)	tie	18 years	2 of 100 (Routine)
24 March 1955	Gray, US	daily low max	-5.6 C (21.9 F)	4.5 C (8.1 F)	34 years	25 of 100 (Routine)
24 March 1955	Gray, US	daily low min	-21.1 C (-6.0 F)	6.1 C (11.0 F)	0 years	14 of 100 (Routine)
23 March 1955	Gray, US	daily low max	-6.7 C (19.9 F)	1.1 C (2.0 F)	56 years	24 of 100 (Routine)
23 March 1955	Gray, US	daily low min	-23.3 C (-9.9 F)	2.7 C (4.9 F)	37 years	20 of 100 (Routine)
22 March 1955	Gray, US	daily low max	-7.2 C (19.0 F)	1.6 C (2.9 F)	2 years	8 of 100 (Routine)
21 March 1955	Gray, US	daily low max	-5.0 C (23.0 F)	1.1 C (2.0 F)	6 years	9 of 100 (Routine)
19 March 1955	Gray, US	daily low min (Tie)	-22.8 C (-9.0 F)	tie	12 years	2 of 100 (Routine)
12 March 1955	Gray, US	daily rain (Tie)	7.6 mm (0.30 in)	tie	55 years	5 of 100 (Routine)
12 March 1955	Gray, US	daily snowfall (Tie)	10.2 cm (4.0 in)	tie	36 years	4 of 100 (Routine)
8 March 1955	Gray, US	daily low min	-20.0 C (-4.0 F)	1.7 C (3.1 F)	24 years	14 of 100 (Routine)
5 March 1955	Gray, US	daily low min (Tie)	-23.9 C (-11.0 F)	tie	6 years	1 of 100 (Routine)
25 February 1955	Gray, US	daily low max	-5.6 C (21.9 F)	0.6 C (1.1 F)	35 years	16 of 100 (Routine)

Climate Trend

25 complete years, 1899 to 1953

One stripe for each of 25 complete years at Gray, 1899 to 1953. Blue stripes are years cooler than the station's own mean of 4.6 C (40.3 F); red stripes are warmer. The coolest year was 1932, at 3.5 C (38.2 F), and the warmest was 1934, at 6.4 C (43.6 F). The strongest colour marks a difference of 1.9 C (3.4 F).

Annual mean temperature at Gray as warming stripes, 1899 to 1953
Year	Annual mean temperature	Difference from the station mean
1899	5.0 C	+0.40 C
1925	5.5 C	+0.93 C
1926	5.1 C	+0.52 C
1927	4.7 C	+0.12 C
1929	4.0 C	-0.58 C
1930	4.0 C	-0.56 C
1932	3.5 C	-1.13 C
1933	4.1 C	-0.49 C
1934	6.4 C	+1.85 C
1935	4.6 C	0.00 C
1936	5.1 C	+0.51 C
1937	4.4 C	-0.16 C
1938	4.6 C	-0.02 C
1939	5.2 C	+0.62 C
1940	5.8 C	+1.25 C
1941	4.8 C	+0.16 C
1942	3.8 C	-0.81 C
1943	4.7 C	+0.15 C
1944	3.6 C	-0.98 C
1945	3.8 C	-0.79 C
1946	3.8 C	-0.79 C
1950	4.6 C	+0.03 C
1951	3.9 C	-0.66 C
1952	4.7 C	+0.14 C
1953	5.0 C	+0.39 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

1897 to 1955

Yearly extremes at Gray: 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)	1919	33.3 C (91.9 F)	42
Coldest night (TNn)	-41.1 C (-42.0 F)	1917	-31.1 C (-24.0 F)	42
Wettest day (Rx1day)	53.3 mm (2.1 in)	1936	24.9 mm (1.0 in)	41
Wettest five days (Rx5day)	104.7 mm (4.1 in)	1948	40.9 mm (1.6 in)	41
Longest dry spell (CDD)	73 days	1953	30 days	41

Hottest day (TXx)

The hottest day of the year at Gray, 1897 to 1955. The record is 39.4 C (102.9 F) in 1919, marked on the chart; the median year is 33.3 C (91.9 F).

Hottest day (TXx) at Gray by year
Year	Hottest day (TXx)
1897	33.9 C (93.0 F)
1898	34.4 C (93.9 F)
1899	33.3 C (91.9 F)
1916	30.0 C (86.0 F)
1917	33.3 C (91.9 F)
1918	34.4 C (93.9 F)
1919	39.4 C (102.9 F)
1920	33.3 C (91.9 F)
1921	32.2 C (90.0 F)
1922	34.4 C (93.9 F)
1923	12.2 C (54.0 F)
1925	38.3 C (100.9 F)
1926	34.4 C (93.9 F)
1927	31.7 C (89.1 F)
1928	32.2 C (90.0 F)
1929	33.3 C (91.9 F)
1930	35.0 C (95.0 F)
1931	36.1 C (97.0 F)
1932	32.8 C (91.0 F)
1933	33.9 C (93.0 F)
1934	35.0 C (95.0 F)
1935	35.6 C (96.1 F)
1936	32.8 C (91.0 F)
1937	32.8 C (91.0 F)
1938	30.0 C (86.0 F)
1939	32.2 C (90.0 F)
1940	34.4 C (93.9 F)
1941	35.0 C (95.0 F)
1942	32.2 C (90.0 F)
1943	33.9 C (93.0 F)
1944	29.4 C (84.9 F)
1945	30.0 C (86.0 F)
1946	31.1 C (88.0 F)
1947	31.7 C (89.1 F)
1948	33.9 C (93.0 F)
1949	27.8 C (82.0 F)
1950	35.0 C (95.0 F)
1951	32.2 C (90.0 F)
1952	35.0 C (95.0 F)
1953	35.6 C (96.1 F)
1954	37.2 C (99.0 F)
1955	25.6 C (78.1 F)

Coldest night (TNn)

The coldest night of the year at Gray, 1897 to 1955. The record is -41.1 C (-42.0 F) in 1917, marked on the chart; the median year is -31.1 C (-24.0 F).

Coldest night (TNn) at Gray by year
Year	Coldest night (TNn)
1897	-32.8 C (-27.0 F)
1898	-36.7 C (-34.1 F)
1899	-37.8 C (-36.0 F)
1916	-35.6 C (-32.1 F)
1917	-41.1 C (-42.0 F)
1918	-35.0 C (-31.0 F)
1919	-40.0 C (-40.0 F)
1920	-33.3 C (-27.9 F)
1921	-22.2 C (-8.0 F)
1922	-36.7 C (-34.1 F)
1923	-17.2 C (1.0 F)
1925	-27.8 C (-18.0 F)
1926	-28.9 C (-20.0 F)
1927	-34.4 C (-29.9 F)
1928	-30.0 C (-22.0 F)
1929	-37.8 C (-36.0 F)
1930	-40.6 C (-41.1 F)
1931	-29.4 C (-20.9 F)
1932	-32.2 C (-26.0 F)
1933	-39.4 C (-38.9 F)
1934	-23.9 C (-11.0 F)
1935	-28.9 C (-20.0 F)
1936	-32.8 C (-27.0 F)
1937	-36.7 C (-34.1 F)
1938	-26.7 C (-16.1 F)
1939	-25.6 C (-14.1 F)
1940	-31.1 C (-24.0 F)
1941	-27.2 C (-17.0 F)
1942	-35.0 C (-31.0 F)
1943	-31.1 C (-24.0 F)
1944	-28.9 C (-20.0 F)
1945	-29.4 C (-20.9 F)
1946	-28.9 C (-20.0 F)
1947	-30.0 C (-22.0 F)
1948	-33.3 C (-27.9 F)
1949	-36.7 C (-34.1 F)
1950	-28.9 C (-20.0 F)
1951	-33.9 C (-29.0 F)
1952	-30.0 C (-22.0 F)
1953	-27.2 C (-17.0 F)
1954	-25.6 C (-14.1 F)
1955	-30.0 C (-22.0 F)

Wettest day (Rx1day)

The wettest day of the year at Gray, 1897 to 1955. The record is 53.3 mm (2.1 in) in 1936, marked on the chart; the median year is 24.9 mm (1.0 in).

Wettest day (Rx1day) at Gray by year
Year	Wettest day (Rx1day)
1897	15.2 mm (0.6 in)
1898	20.3 mm (0.8 in)
1899	15.2 mm (0.6 in)
1916	27.9 mm (1.1 in)
1917	30.5 mm (1.2 in)
1918	25.4 mm (1.0 in)
1919	24.9 mm (1.0 in)
1920	27.4 mm (1.1 in)
1921	30.2 mm (1.2 in)
1922	25.4 mm (1.0 in)
1923	n/a
1925	26.7 mm (1.1 in)
1926	23.4 mm (0.9 in)
1927	22.9 mm (0.9 in)
1928	17.8 mm (0.7 in)
1929	30.5 mm (1.2 in)
1930	27.9 mm (1.1 in)
1931	31.8 mm (1.3 in)
1932	23.4 mm (0.9 in)
1933	23.1 mm (0.9 in)
1934	26.7 mm (1.1 in)
1935	19.3 mm (0.8 in)
1936	53.3 mm (2.1 in)
1937	21.8 mm (0.9 in)
1938	23.1 mm (0.9 in)
1939	21.3 mm (0.8 in)
1940	18.0 mm (0.7 in)
1941	18.3 mm (0.7 in)
1942	53.3 mm (2.1 in)
1943	27.9 mm (1.1 in)
1944	27.9 mm (1.1 in)
1945	26.7 mm (1.1 in)
1946	23.1 mm (0.9 in)
1947	24.9 mm (1.0 in)
1948	52.1 mm (2.1 in)
1949	24.9 mm (1.0 in)
1950	26.7 mm (1.1 in)
1951	21.6 mm (0.9 in)
1952	20.3 mm (0.8 in)
1953	20.3 mm (0.8 in)
1954	17.8 mm (0.7 in)
1955	12.7 mm (0.5 in)

Wettest five days (Rx5day)

The wettest five days of the year at Gray, 1897 to 1955. The record is 104.7 mm (4.1 in) in 1948, marked on the chart; the median year is 40.9 mm (1.6 in).

Wettest five days (Rx5day) at Gray by year
Year	Wettest five days (Rx5day)
1897	30.5 mm (1.2 in)
1898	33.1 mm (1.3 in)
1899	38.1 mm (1.5 in)
1916	48.7 mm (1.9 in)
1917	43.1 mm (1.7 in)
1918	39.1 mm (1.5 in)
1919	33.8 mm (1.3 in)
1920	38.8 mm (1.5 in)
1921	36.3 mm (1.4 in)
1922	26.7 mm (1.1 in)
1923	n/a
1925	39.4 mm (1.6 in)
1926	40.4 mm (1.6 in)
1927	53.4 mm (2.1 in)
1928	35.6 mm (1.4 in)
1929	40.7 mm (1.6 in)
1930	60.2 mm (2.4 in)
1931	55.2 mm (2.2 in)
1932	49.7 mm (2.0 in)
1933	34.1 mm (1.3 in)
1934	40.7 mm (1.6 in)
1935	34.8 mm (1.4 in)
1936	87.1 mm (3.4 in)
1937	41.2 mm (1.6 in)
1938	50.3 mm (2.0 in)
1939	55.6 mm (2.2 in)
1940	34.5 mm (1.4 in)
1941	41.4 mm (1.6 in)
1942	53.3 mm (2.1 in)
1943	50.9 mm (2.0 in)
1944	46.7 mm (1.8 in)
1945	52.0 mm (2.0 in)
1946	40.9 mm (1.6 in)
1947	48.0 mm (1.9 in)
1948	104.7 mm (4.1 in)
1949	47.0 mm (1.9 in)
1950	37.4 mm (1.5 in)
1951	40.6 mm (1.6 in)
1952	48.9 mm (1.9 in)
1953	42.9 mm (1.7 in)
1954	26.7 mm (1.1 in)
1955	23.4 mm (0.9 in)

Longest dry spell (CDD)

The longest dry spell of the year at Gray, 1897 to 1955. The record is 73 days in 1953, marked on the chart; the median year is 30 days.

Longest dry spell (CDD) at Gray by year
Year	Longest dry spell (CDD)
1897	50 days
1898	50 days
1899	62 days
1916	34 days
1917	42 days
1918	19 days
1919	27 days
1920	25 days
1921	23 days
1922	25 days
1923	n/a
1925	19 days
1926	50 days
1927	34 days
1928	43 days
1929	32 days
1930	26 days
1931	45 days
1932	29 days
1933	36 days
1934	23 days
1935	30 days
1936	31 days
1937	33 days
1938	25 days
1939	26 days
1940	35 days
1941	21 days
1942	28 days
1943	39 days
1944	44 days
1945	28 days
1946	22 days
1947	24 days
1948	39 days
1949	19 days
1950	28 days
1951	38 days
1952	62 days
1953	73 days
1954	30 days
1955	27 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

25 years with a frost

Across 25 years with a frost, the median last spring frost at Gray falls on 23 June and the median first autumn frost on 14 August, which leaves a median of 60 days between them.

Fitted over all years, the growing season changes by +2.8 days per decade at this station.

Frost dates and growing season at Gray
Measure	Median, all years	Earliest period	Recent period (1899 to 1953)	Recent against earliest	Fitted trend
Last spring frost	23 June	n/a	23 June	n/a	+1.6 days per decade
First autumn frost	14 August	n/a	14 August	n/a	+4.4 days per decade
Growing days	60 days	n/a	60 days	n/a	+2.8 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.

Download the Data

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