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
Record highRecord low2026 daily maximum2026 daily minimum
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
Year with most
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
Complete yearUnder 90 percent of days
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.
Cooler than the station meanWarmer than the station mean
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 2026-10-14 (14 October 2026). Records are computed by this site and are not official.