Record envelope, standing records and threshold days for Alpha 1 NE (USC00100199), Idaho, United States, with 43 years of record.
Key Facts for Alpha 1 NE
Alpha 1 NE (USC00100199) is a weather station in Idaho, United States at 44.40 latitude and -115.98 longitude, 1,458 m (4,783 ft) above sea level.
The station reports from 1911 to 1953, 43 years of record.
1,464 records set at Alpha 1 NE still stand.
Records are tracked for tmax, tmin, prcp: an element needs 30 years of data to be eligible.
Alpha 1 NE tied a daily record high maximum temperature of 26.7 C (80.1 F) on 7 October 1953.
About the Station
Location: Idaho, United States, 44.40 latitude, -115.98 longitude.
Elevation: 1,458 m (4,783 ft).
Period of record: 1911 to 1953, 43 years.
Eligible elements: tmax, tmin, prcp.
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 Alpha 1 NE. 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 Alpha 1 NE, 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)
-43.9 C (-47.0 F)
n/a
n/a
Feb
19.4 C (66.9 F)
-43.3 C (-45.9 F)
n/a
n/a
Mar
20.0 C (68.0 F)
-30.0 C (-22.0 F)
n/a
n/a
Apr
27.2 C (81.0 F)
-23.9 C (-11.0 F)
n/a
n/a
May
31.1 C (88.0 F)
-8.9 C (16.0 F)
n/a
n/a
Jun
35.6 C (96.1 F)
-6.7 C (19.9 F)
n/a
n/a
Jul
37.8 C (100.0 F)
-4.4 C (24.1 F)
n/a
n/a
Aug
36.7 C (98.1 F)
-6.7 C (19.9 F)
n/a
n/a
Sep
33.9 C (93.0 F)
-14.4 C (6.1 F)
n/a
n/a
Oct
30.0 C (86.0 F)
-19.4 C (-2.9 F)
n/a
n/a
Nov
20.6 C (69.1 F)
-31.7 C (-25.1 F)
n/a
n/a
Dec
16.1 C (61.0 F)
-42.8 C (-45.0 F)
n/a
n/a
Which Years Hold Standing Records
1,464 standing records
Year with most
1,464 records at Alpha 1 NE still stand. 1924 holds the most, with 71.
Standing records at Alpha 1 NE by the year they were set
Year set
Standing records
1911
20
1919
70
1920
57
1921
66
1922
64
1923
21
1924
71
1925
25
1926
34
1927
24
1928
12
1929
20
1930
46
1931
40
1932
36
1933
57
1934
59
1935
38
1936
44
1937
46
1938
35
1939
43
1940
52
1941
30
1942
38
1943
41
1944
48
1945
39
1946
22
1947
31
1948
34
1949
48
1950
56
1951
43
1952
30
1953
24
Wettest Day of Each Month
Nov: 67.3 mm (2.6 in)
The wettest day on record for each calendar month at Alpha 1 NE. The most was 67.3 mm (2.6 in) on 21 November 1921.
Record daily precipitation for each month at Alpha 1 NE
Month
Record daily precipitation (mm)
Date
Jan
54.6 mm (2.1 in)
31 January 1930
Feb
40.9 mm (1.6 in)
20 February 1927
Mar
39.9 mm (1.6 in)
11 March 1928
Apr
43.2 mm (1.7 in)
13 April 1937
May
29.7 mm (1.2 in)
1 May 1938
Jun
30.5 mm (1.2 in)
7 June 1941
Jul
25.4 mm (1.0 in)
5 July 1939
Aug
24.9 mm (1.0 in)
18 August 1941
Sep
37.1 mm (1.5 in)
19 September 1921
Oct
64.3 mm (2.5 in)
16 October 1947
Nov
67.3 mm (2.6 in)
21 November 1921
Dec
57.9 mm (2.3 in)
11 December 1937
Period of Record Coverage
1911 to 1953
Complete yearUnder 90 percent of days
36 years of record at Alpha 1 NE, 1911 to 1953. 12 years have data for under 90 percent of days and are left out of rankings: 1911, 1919, 1923, 1925, 1926, 1927, 1928, 1929 and others.
Cooler than the station meanWarmer than the station mean
One stripe for each of 19 complete years at Alpha 1 NE, 1920 to 1952. Blue stripes are years cooler than the station's own mean of 4.5 C (40.0 F); red stripes are warmer. The coolest year was 1935, at 3.4 C (38.2 F), and the warmest was 1934, at 6.7 C (44.0 F). The strongest colour marks a difference of 2.3 C (4.1 F).
Annual mean temperature at Alpha 1 NE as warming stripes, 1920 to 1952
Year
Annual mean temperature
Difference from the station mean
1920
4.1 C
-0.33 C
1921
5.7 C
+1.20 C
1922
4.3 C
-0.19 C
1924
4.4 C
-0.09 C
1933
4.3 C
-0.20 C
1934
6.7 C
+2.23 C
1935
3.4 C
-1.02 C
1937
4.3 C
-0.13 C
1938
4.7 C
+0.26 C
1939
5.1 C
+0.66 C
1943
4.4 C
-0.03 C
1944
4.2 C
-0.22 C
1945
4.3 C
-0.18 C
1946
3.9 C
-0.61 C
1947
4.7 C
+0.26 C
1949
4.1 C
-0.37 C
1950
4.9 C
+0.45 C
1951
3.5 C
-0.97 C
1952
3.7 C
-0.79 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
1911 to 1953
Yearly extremes at Alpha 1 NE: the record and the median year
Measure
Record
Year of the record
Median year
Years with a value
Hottest day (TXx)
37.8 C (100.0 F)
1924
34.7 C (94.5 F)
36
Coldest night (TNn)
-43.9 C (-47.0 F)
1937
-34.7 C (-30.5 F)
36
Wettest day (Rx1day)
67.3 mm (2.6 in)
1921
38.8 mm (1.5 in)
36
Wettest five days (Rx5day)
187.6 mm (7.4 in)
1929
78.1 mm (3.1 in)
36
Longest dry spell (CDD)
68 days
1934
35 days
36
Hottest day (TXx)
The hottest day of the year at Alpha 1 NE, 1911 to 1953. The record is 37.8 C (100.0 F) in 1924, marked on the chart; the median year is 34.7 C (94.5 F).
Hottest day (TXx) at Alpha 1 NE by year
Year
Hottest day (TXx)
1911
30.6 C (87.1 F)
1919
36.1 C (97.0 F)
1920
36.7 C (98.1 F)
1921
36.1 C (97.0 F)
1922
36.7 C (98.1 F)
1923
35.0 C (95.0 F)
1924
37.8 C (100.0 F)
1925
33.9 C (93.0 F)
1926
36.1 C (97.0 F)
1927
33.9 C (93.0 F)
1928
18.9 C (66.0 F)
1929
19.4 C (66.9 F)
1930
35.6 C (96.1 F)
1931
36.7 C (98.1 F)
1932
32.2 C (90.0 F)
1933
36.1 C (97.0 F)
1934
36.1 C (97.0 F)
1935
35.0 C (95.0 F)
1936
37.2 C (99.0 F)
1937
36.1 C (97.0 F)
1938
32.8 C (91.0 F)
1939
36.1 C (97.0 F)
1940
35.0 C (95.0 F)
1941
33.9 C (93.0 F)
1942
34.4 C (93.9 F)
1943
34.4 C (93.9 F)
1944
32.2 C (90.0 F)
1945
32.8 C (91.0 F)
1946
35.6 C (96.1 F)
1947
32.2 C (90.0 F)
1948
31.1 C (88.0 F)
1949
33.9 C (93.0 F)
1950
33.9 C (93.0 F)
1951
35.0 C (95.0 F)
1952
32.2 C (90.0 F)
1953
34.4 C (93.9 F)
Coldest night (TNn)
The coldest night of the year at Alpha 1 NE, 1911 to 1953. The record is -43.9 C (-47.0 F) in 1937, marked on the chart; the median year is -34.7 C (-30.5 F).
Coldest night (TNn) at Alpha 1 NE by year
Year
Coldest night (TNn)
1911
-30.6 C (-23.1 F)
1919
-42.8 C (-45.0 F)
1920
-32.2 C (-26.0 F)
1921
-28.9 C (-20.0 F)
1922
-38.3 C (-36.9 F)
1923
-35.6 C (-32.1 F)
1924
-37.2 C (-35.0 F)
1925
-24.4 C (-11.9 F)
1926
-31.1 C (-24.0 F)
1927
-40.0 C (-40.0 F)
1928
-28.9 C (-20.0 F)
1929
-33.9 C (-29.0 F)
1930
-38.9 C (-38.0 F)
1931
-33.3 C (-27.9 F)
1932
-34.4 C (-29.9 F)
1933
-43.3 C (-45.9 F)
1934
-23.3 C (-9.9 F)
1935
-40.6 C (-41.1 F)
1936
-35.6 C (-32.1 F)
1937
-43.9 C (-47.0 F)
1938
-25.6 C (-14.1 F)
1939
-35.0 C (-31.0 F)
1940
-24.4 C (-11.9 F)
1941
-30.0 C (-22.0 F)
1942
-36.7 C (-34.1 F)
1943
-41.1 C (-42.0 F)
1944
-29.4 C (-20.9 F)
1945
-32.2 C (-26.0 F)
1946
-31.1 C (-24.0 F)
1947
-35.0 C (-31.0 F)
1948
-37.8 C (-36.0 F)
1949
-37.8 C (-36.0 F)
1950
-38.9 C (-38.0 F)
1951
-36.1 C (-33.0 F)
1952
-31.7 C (-25.1 F)
1953
-30.6 C (-23.1 F)
Wettest day (Rx1day)
The wettest day of the year at Alpha 1 NE, 1911 to 1953. The record is 67.3 mm (2.6 in) in 1921, marked on the chart; the median year is 38.8 mm (1.5 in).
Wettest day (Rx1day) at Alpha 1 NE by year
Year
Wettest day (Rx1day)
1911
27.2 mm (1.1 in)
1919
44.5 mm (1.8 in)
1920
52.8 mm (2.1 in)
1921
67.3 mm (2.6 in)
1922
34.3 mm (1.4 in)
1923
38.1 mm (1.5 in)
1924
38.1 mm (1.5 in)
1925
39.4 mm (1.6 in)
1926
54.9 mm (2.2 in)
1927
40.9 mm (1.6 in)
1928
39.9 mm (1.6 in)
1929
48.0 mm (1.9 in)
1930
54.6 mm (2.1 in)
1931
38.1 mm (1.5 in)
1932
30.5 mm (1.2 in)
1933
23.4 mm (0.9 in)
1934
33.0 mm (1.3 in)
1935
33.3 mm (1.3 in)
1936
43.2 mm (1.7 in)
1937
57.9 mm (2.3 in)
1938
35.8 mm (1.4 in)
1939
43.2 mm (1.7 in)
1940
31.2 mm (1.2 in)
1941
40.6 mm (1.6 in)
1942
56.9 mm (2.2 in)
1943
44.5 mm (1.8 in)
1944
43.2 mm (1.7 in)
1945
31.8 mm (1.3 in)
1946
31.2 mm (1.2 in)
1947
64.3 mm (2.5 in)
1948
29.0 mm (1.1 in)
1949
22.9 mm (0.9 in)
1950
31.2 mm (1.2 in)
1951
31.5 mm (1.2 in)
1952
22.9 mm (0.9 in)
1953
49.5 mm (1.9 in)
Wettest five days (Rx5day)
The wettest five days of the year at Alpha 1 NE, 1911 to 1953. The record is 187.6 mm (7.4 in) in 1929, marked on the chart; the median year is 78.1 mm (3.1 in).
Wettest five days (Rx5day) at Alpha 1 NE by year
Year
Wettest five days (Rx5day)
1911
50.8 mm (2.0 in)
1919
58.7 mm (2.3 in)
1920
107.4 mm (4.2 in)
1921
161.3 mm (6.4 in)
1922
57.9 mm (2.3 in)
1923
86.8 mm (3.4 in)
1924
78.6 mm (3.1 in)
1925
107.8 mm (4.2 in)
1926
99.7 mm (3.9 in)
1927
84.0 mm (3.3 in)
1928
67.6 mm (2.7 in)
1929
187.6 mm (7.4 in)
1930
74.4 mm (2.9 in)
1931
67.6 mm (2.7 in)
1932
50.6 mm (2.0 in)
1933
55.6 mm (2.2 in)
1934
70.1 mm (2.8 in)
1935
76.7 mm (3.0 in)
1936
81.3 mm (3.2 in)
1937
55.1 mm (2.2 in)
1938
75.2 mm (3.0 in)
1939
89.1 mm (3.5 in)
1940
86.3 mm (3.4 in)
1941
85.8 mm (3.4 in)
1942
114.6 mm (4.5 in)
1943
134.6 mm (5.3 in)
1944
87.7 mm (3.5 in)
1945
61.8 mm (2.4 in)
1946
96.3 mm (3.8 in)
1947
64.3 mm (2.5 in)
1948
84.9 mm (3.3 in)
1949
67.1 mm (2.6 in)
1950
68.1 mm (2.7 in)
1951
77.5 mm (3.1 in)
1952
44.4 mm (1.7 in)
1953
110.9 mm (4.4 in)
Longest dry spell (CDD)
The longest dry spell of the year at Alpha 1 NE, 1911 to 1953. The record is 68 days in 1934, marked on the chart; the median year is 35 days.
Longest dry spell (CDD) at Alpha 1 NE by year
Year
Longest dry spell (CDD)
1911
15 days
1919
60 days
1920
35 days
1921
23 days
1922
36 days
1923
22 days
1924
30 days
1925
15 days
1926
31 days
1927
25 days
1928
17 days
1929
31 days
1930
39 days
1931
60 days
1932
38 days
1933
35 days
1934
68 days
1935
62 days
1936
30 days
1937
34 days
1938
24 days
1939
45 days
1940
39 days
1941
23 days
1942
60 days
1943
40 days
1944
31 days
1945
28 days
1946
26 days
1947
64 days
1948
24 days
1949
36 days
1950
40 days
1951
26 days
1952
50 days
1953
35 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.
Download the Data
Data for Alpha 1 NE standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Alpha 1 NE 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.