Record envelope, standing records and threshold days for Alamo (USC00260099), Nevada, United States, with 42 years of record.
Key Facts for Alamo
Alamo (USC00260099) is a weather station in Nevada, United States at 37.37 latitude and -115.17 longitude, n/a above sea level.
The station reports from 1921 to 1962, 42 years of record.
1,464 records set at Alamo still stand.
Records are tracked for tmax, tmin, prcp: an element needs 30 years of data to be eligible.
Alamo set a daily record low minimum temperature of -1.1 C (30.0 F) on 21 May 1962.
About the Station
Location: Nevada, United States, 37.37 latitude, -115.17 longitude.
Elevation: n/a.
Period of record: 1921 to 1962, 42 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 Alamo. 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 Alamo, with 2026 drawn through them
Month
Highest record high
Lowest record low
2026 highest maximum
2026 lowest minimum
Jan
27.2 C (81.0 F)
-22.8 C (-9.0 F)
n/a
n/a
Feb
28.3 C (82.9 F)
-21.1 C (-6.0 F)
n/a
n/a
Mar
29.4 C (84.9 F)
-11.7 C (10.9 F)
n/a
n/a
Apr
35.0 C (95.0 F)
-10.0 C (14.0 F)
n/a
n/a
May
40.6 C (105.1 F)
-6.7 C (19.9 F)
n/a
n/a
Jun
44.4 C (111.9 F)
-3.9 C (25.0 F)
n/a
n/a
Jul
45.6 C (114.1 F)
4.4 C (39.9 F)
n/a
n/a
Aug
46.7 C (116.1 F)
0.6 C (33.1 F)
n/a
n/a
Sep
42.2 C (108.0 F)
-4.4 C (24.1 F)
n/a
n/a
Oct
37.8 C (100.0 F)
-11.7 C (10.9 F)
n/a
n/a
Nov
30.0 C (86.0 F)
-13.9 C (7.0 F)
n/a
n/a
Dec
24.4 C (75.9 F)
-17.8 C (0.0 F)
n/a
n/a
Which Years Hold Standing Records
1,464 standing records
Year with most
1,464 records at Alamo still stand. 1934 holds the most, with 126.
Standing records at Alamo by the year they were set
Year set
Standing records
1921
16
1922
24
1923
27
1924
38
1925
31
1926
21
1927
30
1928
72
1929
112
1930
35
1931
43
1932
27
1933
38
1934
126
1935
15
1936
40
1937
53
1938
23
1939
38
1940
54
1941
32
1942
32
1943
43
1944
6
1945
48
1946
19
1947
29
1948
34
1949
61
1950
44
1951
23
1952
28
1953
35
1954
31
1955
14
1956
17
1957
20
1958
20
1959
19
1960
11
1961
14
1962
21
Wettest Day of Each Month
Aug: 90.9 mm (3.6 in)
The wettest day on record for each calendar month at Alamo. The most was 90.9 mm (3.6 in) on 28 August 1932.
Record daily precipitation for each month at Alamo
Month
Record daily precipitation (mm)
Date
Jan
26.9 mm (1.1 in)
23 January 1943
Feb
21.6 mm (0.9 in)
27 February 1949
Mar
37.8 mm (1.5 in)
2 March 1938
Apr
27.2 mm (1.1 in)
1 April 1940
May
33.0 mm (1.3 in)
10 May 1922
Jun
17.0 mm (0.7 in)
3 June 1925
Jul
43.4 mm (1.7 in)
27 July 1950
Aug
90.9 mm (3.6 in)
28 August 1932
Sep
22.4 mm (0.9 in)
8 September 1950
Oct
28.4 mm (1.1 in)
20 October 1941
Nov
31.8 mm (1.3 in)
11 November 1954
Dec
25.9 mm (1.0 in)
10 December 1931
Period of Record Coverage
1921 to 1962
Complete yearUnder 90 percent of days
42 years of record at Alamo, 1921 to 1962. 13 years have data for under 90 percent of days and are left out of rankings: 1921, 1924, 1943, 1944, 1946, 1947, 1954, 1955 and others.
Cooler than the station meanWarmer than the station mean
One stripe for each of 27 complete years at Alamo, 1922 to 1958. Blue stripes are years cooler than the station's own mean of 13.7 C (56.7 F); red stripes are warmer. The coolest year was 1929, at 10.7 C (51.3 F), and the warmest was 1934, at 17.2 C (63.0 F). The strongest colour marks a difference of 3.6 C (6.5 F).
Annual mean temperature at Alamo as warming stripes, 1922 to 1958
Year
Annual mean temperature
Difference from the station mean
1922
13.0 C
-0.72 C
1923
12.6 C
-1.10 C
1925
13.5 C
-0.18 C
1926
13.8 C
+0.12 C
1927
12.5 C
-1.19 C
1928
12.1 C
-1.58 C
1929
10.7 C
-3.00 C
1930
14.0 C
+0.25 C
1931
14.5 C
+0.76 C
1932
14.1 C
+0.42 C
1933
14.2 C
+0.50 C
1934
17.2 C
+3.50 C
1935
14.4 C
+0.73 C
1936
14.7 C
+0.97 C
1937
13.1 C
-0.62 C
1938
13.8 C
+0.12 C
1939
14.6 C
+0.87 C
1940
14.7 C
+1.01 C
1941
13.7 C
+0.01 C
1942
15.5 C
+1.77 C
1948
12.3 C
-1.45 C
1949
12.3 C
-1.41 C
1950
13.9 C
+0.16 C
1951
13.3 C
-0.38 C
1952
13.5 C
-0.21 C
1953
13.9 C
+0.19 C
1958
14.1 C
+0.35 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
1921 to 1962
Yearly extremes at Alamo: the record and the median year
Measure
Record
Year of the record
Median year
Years with a value
Hottest day (TXx)
46.7 C (116.1 F)
1940
42.2 C (108.0 F)
42
Coldest night (TNn)
-22.8 C (-9.0 F)
1937
-14.1 C (6.5 F)
42
Wettest day (Rx1day)
90.9 mm (3.6 in)
1932
20.3 mm (0.8 in)
42
Wettest five days (Rx5day)
117.6 mm (4.6 in)
1945
27.7 mm (1.1 in)
42
Longest dry spell (CDD)
155 days
1956
67 days
42
Hottest day (TXx)
The hottest day of the year at Alamo, 1921 to 1962. The record is 46.7 C (116.1 F) in 1940, marked on the chart; the median year is 42.2 C (108.0 F).
Hottest day (TXx) at Alamo by year
Year
Hottest day (TXx)
1921
36.7 C (98.1 F)
1922
43.3 C (109.9 F)
1923
42.2 C (108.0 F)
1924
42.2 C (108.0 F)
1925
43.9 C (111.0 F)
1926
42.2 C (108.0 F)
1927
40.6 C (105.1 F)
1928
41.7 C (107.1 F)
1929
40.6 C (105.1 F)
1930
40.6 C (105.1 F)
1931
42.8 C (109.0 F)
1932
43.3 C (109.9 F)
1933
43.9 C (111.0 F)
1934
43.3 C (109.9 F)
1935
43.3 C (109.9 F)
1936
43.9 C (111.0 F)
1937
42.2 C (108.0 F)
1938
43.3 C (109.9 F)
1939
42.2 C (108.0 F)
1940
46.7 C (116.1 F)
1941
43.9 C (111.0 F)
1942
45.6 C (114.1 F)
1943
45.6 C (114.1 F)
1944
25.0 C (77.0 F)
1945
40.6 C (105.1 F)
1946
37.8 C (100.0 F)
1947
40.6 C (105.1 F)
1948
41.1 C (106.0 F)
1949
41.7 C (107.1 F)
1950
42.8 C (109.0 F)
1951
41.1 C (106.0 F)
1952
41.7 C (107.1 F)
1953
41.7 C (107.1 F)
1954
43.9 C (111.0 F)
1955
41.7 C (107.1 F)
1956
41.7 C (107.1 F)
1957
41.7 C (107.1 F)
1958
42.8 C (109.0 F)
1959
42.8 C (109.0 F)
1960
43.3 C (109.9 F)
1961
40.0 C (104.0 F)
1962
37.8 C (100.0 F)
Coldest night (TNn)
The coldest night of the year at Alamo, 1921 to 1962. The record is -22.8 C (-9.0 F) in 1937, marked on the chart; the median year is -14.1 C (6.5 F).
Coldest night (TNn) at Alamo by year
Year
Coldest night (TNn)
1921
-9.4 C (15.1 F)
1922
-18.3 C (-0.9 F)
1923
-17.8 C (0.0 F)
1924
-20.6 C (-5.1 F)
1925
-11.7 C (10.9 F)
1926
-15.6 C (3.9 F)
1927
-15.0 C (5.0 F)
1928
-12.8 C (9.0 F)
1929
-18.9 C (-2.0 F)
1930
-18.3 C (-0.9 F)
1931
-17.8 C (0.0 F)
1932
-17.2 C (1.0 F)
1933
-21.1 C (-6.0 F)
1934
-7.2 C (19.0 F)
1935
-13.9 C (7.0 F)
1936
-12.2 C (10.0 F)
1937
-22.8 C (-9.0 F)
1938
-11.7 C (10.9 F)
1939
-17.2 C (1.0 F)
1940
-13.3 C (8.1 F)
1941
-9.4 C (15.1 F)
1942
-12.2 C (10.0 F)
1943
-14.4 C (6.1 F)
1944
-11.7 C (10.9 F)
1945
-12.2 C (10.0 F)
1946
-12.8 C (9.0 F)
1947
-13.3 C (8.1 F)
1948
-17.8 C (0.0 F)
1949
-19.4 C (-2.9 F)
1950
-16.7 C (1.9 F)
1951
-12.8 C (9.0 F)
1952
-14.4 C (6.1 F)
1953
-13.3 C (8.1 F)
1954
-13.3 C (8.1 F)
1955
-17.8 C (0.0 F)
1956
-12.8 C (9.0 F)
1957
-11.7 C (10.9 F)
1958
-11.1 C (12.0 F)
1959
-15.6 C (3.9 F)
1960
-14.4 C (6.1 F)
1961
-12.8 C (9.0 F)
1962
-15.6 C (3.9 F)
Wettest day (Rx1day)
The wettest day of the year at Alamo, 1921 to 1962. The record is 90.9 mm (3.6 in) in 1932, marked on the chart; the median year is 20.3 mm (0.8 in).
Wettest day (Rx1day) at Alamo by year
Year
Wettest day (Rx1day)
1921
10.2 mm (0.4 in)
1922
33.0 mm (1.3 in)
1923
26.4 mm (1.0 in)
1924
15.2 mm (0.6 in)
1925
17.3 mm (0.7 in)
1926
25.9 mm (1.0 in)
1927
18.5 mm (0.7 in)
1928
13.0 mm (0.5 in)
1929
11.2 mm (0.4 in)
1930
24.4 mm (1.0 in)
1931
25.9 mm (1.0 in)
1932
90.9 mm (3.6 in)
1933
20.3 mm (0.8 in)
1934
10.7 mm (0.4 in)
1935
18.0 mm (0.7 in)
1936
17.5 mm (0.7 in)
1937
25.4 mm (1.0 in)
1938
37.8 mm (1.5 in)
1939
16.5 mm (0.6 in)
1940
27.2 mm (1.1 in)
1941
28.4 mm (1.1 in)
1942
26.4 mm (1.0 in)
1943
26.9 mm (1.1 in)
1944
17.8 mm (0.7 in)
1945
67.3 mm (2.6 in)
1946
17.3 mm (0.7 in)
1947
19.1 mm (0.8 in)
1948
20.3 mm (0.8 in)
1949
27.4 mm (1.1 in)
1950
43.4 mm (1.7 in)
1951
24.9 mm (1.0 in)
1952
31.5 mm (1.2 in)
1953
13.5 mm (0.5 in)
1954
31.8 mm (1.3 in)
1955
23.1 mm (0.9 in)
1956
14.5 mm (0.6 in)
1957
18.8 mm (0.7 in)
1958
19.8 mm (0.8 in)
1959
18.0 mm (0.7 in)
1960
26.7 mm (1.1 in)
1961
17.5 mm (0.7 in)
1962
6.4 mm (0.25 in)
Wettest five days (Rx5day)
The wettest five days of the year at Alamo, 1921 to 1962. The record is 117.6 mm (4.6 in) in 1945, marked on the chart; the median year is 27.7 mm (1.1 in).
Wettest five days (Rx5day) at Alamo by year
Year
Wettest five days (Rx5day)
1921
10.2 mm (0.4 in)
1922
59.9 mm (2.4 in)
1923
26.4 mm (1.0 in)
1924
20.0 mm (0.8 in)
1925
24.3 mm (1.0 in)
1926
25.9 mm (1.0 in)
1927
28.2 mm (1.1 in)
1928
21.3 mm (0.8 in)
1929
15.3 mm (0.6 in)
1930
52.2 mm (2.1 in)
1931
30.2 mm (1.2 in)
1932
17.8 mm (0.7 in)
1933
32.2 mm (1.3 in)
1934
17.0 mm (0.7 in)
1935
26.7 mm (1.1 in)
1936
51.4 mm (2.0 in)
1937
38.1 mm (1.5 in)
1938
54.6 mm (2.1 in)
1939
25.4 mm (1.0 in)
1940
36.9 mm (1.5 in)
1941
38.7 mm (1.5 in)
1942
26.4 mm (1.0 in)
1943
62.6 mm (2.5 in)
1944
32.0 mm (1.3 in)
1945
117.6 mm (4.6 in)
1946
45.2 mm (1.8 in)
1947
37.9 mm (1.5 in)
1948
20.3 mm (0.8 in)
1949
61.2 mm (2.4 in)
1950
56.3 mm (2.2 in)
1951
28.7 mm (1.1 in)
1952
37.6 mm (1.5 in)
1953
20.6 mm (0.8 in)
1954
42.7 mm (1.7 in)
1955
25.4 mm (1.0 in)
1956
27.2 mm (1.1 in)
1957
21.4 mm (0.8 in)
1958
26.6 mm (1.0 in)
1959
18.5 mm (0.7 in)
1960
45.3 mm (1.8 in)
1961
19.8 mm (0.8 in)
1962
10.8 mm (0.4 in)
Longest dry spell (CDD)
The longest dry spell of the year at Alamo, 1921 to 1962. The record is 155 days in 1956, marked on the chart; the median year is 67 days.
Longest dry spell (CDD) at Alamo by year
Year
Longest dry spell (CDD)
1921
78 days
1922
60 days
1923
74 days
1924
49 days
1925
51 days
1926
50 days
1927
83 days
1928
88 days
1929
115 days
1930
62 days
1931
48 days
1932
84 days
1933
55 days
1934
71 days
1935
72 days
1936
61 days
1937
60 days
1938
49 days
1939
53 days
1940
68 days
1941
23 days
1942
85 days
1943
54 days
1944
24 days
1945
59 days
1946
75 days
1947
66 days
1948
108 days
1949
49 days
1950
149 days
1951
45 days
1952
59 days
1953
78 days
1954
109 days
1955
92 days
1956
155 days
1957
87 days
1958
77 days
1959
118 days
1960
85 days
1961
25 days
1962
64 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
27 years with a frost
Across 27 years with a frost, the median last spring frost at Alamo falls on 1 May and the median first autumn frost on 16 October, which leaves a median of 175 days between them.
Fitted over all years, the growing season changes by -2.4 days per decade at this station.
Frost dates and growing season at Alamo
Measure
Median, all years
Earliest period
Recent period (1922 to 1958)
Recent against earliest
Fitted trend
Last spring frost
1 May
n/a
1 May
n/a
+1.0 days per decade
First autumn frost
16 October
n/a
16 October
n/a
-1.3 days per decade
Growing days
175 days
n/a
175 days
n/a
-2.4 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 Alamo standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Alamo 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 2026-10-15 (15 October 2026). Records are computed by this site and are not official.