Record envelope, standing records and threshold days for Laramie (USC00485410), Wyoming, United States, with 70 years of record.
Key Facts for Laramie
Laramie (USC00485410) is a weather station in Wyoming, United States at 41.32 latitude and -105.58 longitude, 2,196 m (7,205 ft) above sea level.
The station reports from 1892 to 1961, 70 years of record.
1,464 records set at Laramie still stand.
Records are tracked for tmax, tmin, prcp, snow: an element needs 30 years of data to be eligible.
Laramie set a daily record low maximum temperature of -15.0 C (5.0 F) on 10 December 1961.
About the Station
Location: Wyoming, United States, 41.32 latitude, -105.58 longitude.
Elevation: 2,196 m (7,205 ft).
Period of record: 1892 to 1961, 70 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 Laramie. 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 Laramie, 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)
-40.6 C (-41.1 F)
n/a
n/a
Feb
16.1 C (61.0 F)
-41.1 C (-42.0 F)
n/a
n/a
Mar
20.0 C (68.0 F)
-37.2 C (-35.0 F)
n/a
n/a
Apr
24.4 C (75.9 F)
-23.3 C (-9.9 F)
n/a
n/a
May
26.7 C (80.1 F)
-13.9 C (7.0 F)
n/a
n/a
Jun
33.9 C (93.0 F)
-5.6 C (21.9 F)
n/a
n/a
Jul
33.9 C (93.0 F)
-1.1 C (30.0 F)
n/a
n/a
Aug
32.8 C (91.0 F)
-2.8 C (27.0 F)
n/a
n/a
Sep
31.1 C (88.0 F)
-12.8 C (9.0 F)
n/a
n/a
Oct
30.6 C (87.1 F)
-22.8 C (-9.0 F)
n/a
n/a
Nov
20.0 C (68.0 F)
-31.7 C (-25.1 F)
n/a
n/a
Dec
16.7 C (62.1 F)
-34.4 C (-29.9 F)
n/a
n/a
Which Years Hold Standing Records
1,464 standing records
Year with most
1,464 records at Laramie still stand. 1954 holds the most, with 42.
Standing records at Laramie by the year they were set
Year set
Standing records
1892
5
1893
19
1894
18
1895
30
1896
29
1897
31
1898
33
1899
22
1900
35
1901
19
1902
21
1903
19
1904
25
1905
26
1906
32
1907
19
1908
30
1909
29
1910
36
1911
21
1912
14
1913
20
1914
14
1915
18
1916
14
1917
31
1918
31
1919
15
1920
17
1921
24
1922
13
1923
14
1924
14
1925
10
1926
18
1927
22
1928
13
1929
23
1930
26
1931
19
1932
25
1933
30
1934
20
1935
18
1936
19
1937
16
1938
8
1939
21
1940
19
1941
15
1942
16
1943
20
1944
10
1945
12
1946
26
1947
24
1948
25
1949
13
1950
23
1951
23
1952
16
1953
19
1954
42
1955
27
1956
24
1957
9
1958
16
1959
25
1960
24
1961
10
All-Time Record Progression
3 new records
3 all-time records were set at Laramie between 6 July 1926 and 23 June 1954. Each dot is a new record.
When Laramie set new all-time records
Date
Kind
Detail
1926-07-06
Record daily precipitation
Record daily precipitation 63.8 mm (2.5 in)
1933-02-09
Record low maximum temperature
Record low maximum temperature -23.9 C (-11.0 F)
1954-06-23
Record high maximum temperature
Record high maximum temperature 33.9 C (93.0 F)
Wettest Day of Each Month
Jul: 63.8 mm (2.5 in)
The wettest day on record for each calendar month at Laramie. The most was 63.8 mm (2.5 in) on 6 July 1926.
Record daily precipitation for each month at Laramie
Month
Record daily precipitation (mm)
Date
Jan
22.4 mm (0.9 in)
10 January 1911
Feb
21.6 mm (0.9 in)
23 February 1917
Mar
27.9 mm (1.1 in)
12 March 1929
Apr
55.6 mm (2.2 in)
28 April 1896
May
55.4 mm (2.2 in)
24 May 1908
Jun
36.1 mm (1.4 in)
9 June 1923
Jul
63.8 mm (2.5 in)
6 July 1926
Aug
38.9 mm (1.5 in)
1 August 1961
Sep
37.6 mm (1.5 in)
9 September 1912
Oct
33.0 mm (1.3 in)
17 October 1910
Nov
18.3 mm (0.7 in)
10 November 1912
Dec
28.2 mm (1.1 in)
5 December 1913
Period of Record Coverage
1892 to 1961
Complete yearUnder 90 percent of days
70 years of record at Laramie, 1892 to 1961. 5 years have data for under 90 percent of days and are left out of rankings: 1892, 1894, 1895, 1902, 1912.
Cooler than the station meanWarmer than the station mean
One stripe for each of 63 complete years at Laramie, 1893 to 1961. Blue stripes are years cooler than the station's own mean of 5.5 C (41.9 F); red stripes are warmer. The coolest year was 1899, at 3.7 C (38.6 F), and the warmest was 1954, at 7.6 C (45.6 F). The strongest colour marks a difference of 2.1 C (3.8 F).
Annual mean temperature at Laramie as warming stripes, 1893 to 1961
Year
Annual mean temperature
Difference from the station mean
1893
4.9 C
-0.60 C
1896
5.4 C
-0.10 C
1897
4.1 C
-1.44 C
1899
3.7 C
-1.83 C
1900
6.0 C
+0.49 C
1901
4.8 C
-0.70 C
1903
4.6 C
-0.88 C
1904
5.5 C
-0.04 C
1905
4.6 C
-0.91 C
1906
5.1 C
-0.40 C
1907
5.5 C
-0.04 C
1908
4.7 C
-0.77 C
1909
5.0 C
-0.53 C
1910
6.6 C
+1.06 C
1911
5.3 C
-0.24 C
1914
5.6 C
+0.08 C
1915
4.3 C
-1.24 C
1916
5.0 C
-0.54 C
1917
4.6 C
-0.89 C
1918
5.4 C
-0.11 C
1919
5.8 C
+0.31 C
1920
4.7 C
-0.78 C
1921
6.7 C
+1.15 C
1922
5.4 C
-0.09 C
1923
4.7 C
-0.83 C
1924
4.8 C
-0.70 C
1925
5.6 C
+0.07 C
1926
5.2 C
-0.35 C
1927
5.3 C
-0.19 C
1928
5.2 C
-0.32 C
1929
4.2 C
-1.31 C
1930
4.9 C
-0.59 C
1931
5.7 C
+0.17 C
1932
4.5 C
-0.99 C
1933
6.6 C
+1.06 C
1934
7.4 C
+1.88 C
1935
5.9 C
+0.41 C
1936
6.1 C
+0.59 C
1937
5.4 C
-0.08 C
1938
6.1 C
+0.56 C
1939
6.6 C
+1.07 C
1940
6.6 C
+1.05 C
1941
6.1 C
+0.55 C
1942
5.1 C
-0.37 C
1943
6.3 C
+0.79 C
1944
5.1 C
-0.43 C
1945
5.1 C
-0.43 C
1946
6.5 C
+0.97 C
1947
5.4 C
-0.11 C
1948
5.4 C
-0.10 C
1949
5.6 C
+0.09 C
1950
6.1 C
+0.59 C
1951
4.9 C
-0.61 C
1952
5.8 C
+0.28 C
1953
6.5 C
+1.04 C
1954
7.6 C
+2.08 C
1955
5.9 C
+0.42 C
1956
6.1 C
+0.61 C
1957
5.9 C
+0.43 C
1958
6.6 C
+1.05 C
1959
5.8 C
+0.28 C
1960
5.8 C
+0.30 C
1961
5.4 C
-0.07 C
The annual mean temperature here has risen by 0.2 C (0.1 to 0.3) per decade over 1893 to 1961. In Fahrenheit: 0.4 F (0.2 to 0.5) per decade. The slope is a straight line fitted to 63 complete years; the brackets give its 95 percent interval.
Fitted temperature trends per decade at Laramie
Measure
Per decade (C)
Per decade (F)
Period
Complete years
Reading
Annual mean temperature
0.2 C (0.1 to 0.3) per decade
0.4 F (0.2 to 0.5) per decade
1893 to 1961
63
Rise
Mean daily maximum
0.05 C (-0.07 to 0.16) per decade
0.1 F (-0.1 to 0.3) per decade
1893 to 1961
63
Not clearly different from zero
Mean daily minimum
0.4 C (0.3 to 0.4) per decade
0.6 F (0.5 to 0.8) per decade
1893 to 1961
63
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
1892 to 1961
Yearly extremes at Laramie: the record and the median year
Measure
Record
Year of the record
Median year
Years with a value
Hottest day (TXx)
33.9 C (93.0 F)
1954
30.6 C (87.1 F)
70
Coldest night (TNn)
-41.1 C (-42.0 F)
1905
-30.0 C (-22.0 F)
70
Wettest day (Rx1day)
63.8 mm (2.5 in)
1926
24.3 mm (1.0 in)
70
Wettest five days (Rx5day)
90.7 mm (3.6 in)
1920
35.7 mm (1.4 in)
70
Longest dry spell (CDD)
84 days
1910
35 days
70
Hottest day (TXx)
The hottest day of the year at Laramie, 1892 to 1961. The record is 33.9 C (93.0 F) in 1954, marked on the chart; the median year is 30.6 C (87.1 F).
Hottest day (TXx) at Laramie by year
Year
Hottest day (TXx)
1892
21.7 C (71.1 F)
1893
30.6 C (87.1 F)
1894
31.1 C (88.0 F)
1895
30.6 C (87.1 F)
1896
29.4 C (84.9 F)
1897
29.4 C (84.9 F)
1898
31.1 C (88.0 F)
1899
30.6 C (87.1 F)
1900
32.8 C (91.0 F)
1901
33.3 C (91.9 F)
1902
32.8 C (91.0 F)
1903
31.7 C (89.1 F)
1904
28.3 C (82.9 F)
1905
32.8 C (91.0 F)
1906
31.1 C (88.0 F)
1907
29.4 C (84.9 F)
1908
30.0 C (86.0 F)
1909
32.2 C (90.0 F)
1910
31.7 C (89.1 F)
1911
30.0 C (86.0 F)
1912
30.6 C (87.1 F)
1913
31.7 C (89.1 F)
1914
30.0 C (86.0 F)
1915
28.9 C (84.0 F)
1916
30.0 C (86.0 F)
1917
31.1 C (88.0 F)
1918
31.7 C (89.1 F)
1919
31.1 C (88.0 F)
1920
30.6 C (87.1 F)
1921
30.0 C (86.0 F)
1922
31.1 C (88.0 F)
1923
29.4 C (84.9 F)
1924
29.4 C (84.9 F)
1925
31.7 C (89.1 F)
1926
30.6 C (87.1 F)
1927
30.0 C (86.0 F)
1928
29.4 C (84.9 F)
1929
30.0 C (86.0 F)
1930
30.6 C (87.1 F)
1931
33.3 C (91.9 F)
1932
30.0 C (86.0 F)
1933
30.6 C (87.1 F)
1934
32.2 C (90.0 F)
1935
31.1 C (88.0 F)
1936
31.1 C (88.0 F)
1937
30.6 C (87.1 F)
1938
31.1 C (88.0 F)
1939
32.8 C (91.0 F)
1940
32.2 C (90.0 F)
1941
32.2 C (90.0 F)
1942
30.6 C (87.1 F)
1943
30.0 C (86.0 F)
1944
30.6 C (87.1 F)
1945
29.4 C (84.9 F)
1946
31.1 C (88.0 F)
1947
30.6 C (87.1 F)
1948
30.6 C (87.1 F)
1949
31.1 C (88.0 F)
1950
28.3 C (82.9 F)
1951
31.1 C (88.0 F)
1952
30.6 C (87.1 F)
1953
31.1 C (88.0 F)
1954
33.9 C (93.0 F)
1955
31.1 C (88.0 F)
1956
30.0 C (86.0 F)
1957
30.6 C (87.1 F)
1958
31.1 C (88.0 F)
1959
31.7 C (89.1 F)
1960
31.7 C (89.1 F)
1961
31.1 C (88.0 F)
Coldest night (TNn)
The coldest night of the year at Laramie, 1892 to 1961. The record is -41.1 C (-42.0 F) in 1905, marked on the chart; the median year is -30.0 C (-22.0 F).
Coldest night (TNn) at Laramie by year
Year
Coldest night (TNn)
1892
-33.9 C (-29.0 F)
1893
-22.8 C (-9.0 F)
1894
-32.8 C (-27.0 F)
1895
-34.4 C (-29.9 F)
1896
-29.4 C (-20.9 F)
1897
-34.4 C (-29.9 F)
1898
-30.6 C (-23.1 F)
1899
-40.0 C (-40.0 F)
1900
-32.8 C (-27.0 F)
1901
-30.6 C (-23.1 F)
1902
-27.8 C (-18.0 F)
1903
-32.2 C (-26.0 F)
1904
-23.9 C (-11.0 F)
1905
-41.1 C (-42.0 F)
1906
-29.4 C (-20.9 F)
1907
-22.8 C (-9.0 F)
1908
-31.1 C (-24.0 F)
1909
-30.6 C (-23.1 F)
1910
-25.6 C (-14.1 F)
1911
-31.1 C (-24.0 F)
1912
-28.9 C (-20.0 F)
1913
-34.4 C (-29.9 F)
1914
-33.9 C (-29.0 F)
1915
-25.6 C (-14.1 F)
1916
-31.7 C (-25.1 F)
1917
-31.1 C (-24.0 F)
1918
-28.3 C (-18.9 F)
1919
-31.7 C (-25.1 F)
1920
-28.9 C (-20.0 F)
1921
-26.1 C (-15.0 F)
1922
-33.3 C (-27.9 F)
1923
-33.9 C (-29.0 F)
1924
-32.8 C (-27.0 F)
1925
-27.2 C (-17.0 F)
1926
-34.4 C (-29.9 F)
1927
-28.9 C (-20.0 F)
1928
-25.6 C (-14.1 F)
1929
-29.4 C (-20.9 F)
1930
-40.6 C (-41.1 F)
1931
-23.9 C (-11.0 F)
1932
-37.2 C (-35.0 F)
1933
-35.6 C (-32.1 F)
1934
-22.2 C (-8.0 F)
1935
-30.6 C (-23.1 F)
1936
-33.9 C (-29.0 F)
1937
-30.0 C (-22.0 F)
1938
-23.9 C (-11.0 F)
1939
-23.3 C (-9.9 F)
1940
-34.4 C (-29.9 F)
1941
-24.4 C (-11.9 F)
1942
-32.2 C (-26.0 F)
1943
-31.1 C (-24.0 F)
1944
-27.8 C (-18.0 F)
1945
-27.2 C (-17.0 F)
1946
-22.2 C (-8.0 F)
1947
-25.6 C (-14.1 F)
1948
-31.7 C (-25.1 F)
1949
-32.8 C (-27.0 F)
1950
-28.3 C (-18.9 F)
1951
-33.3 C (-27.9 F)
1952
-28.3 C (-18.9 F)
1953
-21.7 C (-7.1 F)
1954
-23.3 C (-9.9 F)
1955
-25.0 C (-13.0 F)
1956
-30.0 C (-22.0 F)
1957
-26.1 C (-15.0 F)
1958
-20.6 C (-5.1 F)
1959
-26.7 C (-16.1 F)
1960
-23.9 C (-11.0 F)
1961
-33.3 C (-27.9 F)
Wettest day (Rx1day)
The wettest day of the year at Laramie, 1892 to 1961. The record is 63.8 mm (2.5 in) in 1926, marked on the chart; the median year is 24.3 mm (1.0 in).
Wettest day (Rx1day) at Laramie by year
Year
Wettest day (Rx1day)
1892
12.2 mm (0.5 in)
1893
14.2 mm (0.6 in)
1894
25.4 mm (1.0 in)
1895
24.9 mm (1.0 in)
1896
55.6 mm (2.2 in)
1897
25.7 mm (1.0 in)
1898
14.0 mm (0.6 in)
1899
30.5 mm (1.2 in)
1900
19.1 mm (0.8 in)
1901
23.1 mm (0.9 in)
1902
26.7 mm (1.1 in)
1903
21.1 mm (0.8 in)
1904
21.8 mm (0.9 in)
1905
14.7 mm (0.6 in)
1906
31.0 mm (1.2 in)
1907
33.0 mm (1.3 in)
1908
55.4 mm (2.2 in)
1909
23.6 mm (0.9 in)
1910
33.0 mm (1.3 in)
1911
23.4 mm (0.9 in)
1912
37.6 mm (1.5 in)
1913
47.5 mm (1.9 in)
1914
21.6 mm (0.9 in)
1915
19.3 mm (0.8 in)
1916
26.7 mm (1.1 in)
1917
23.1 mm (0.9 in)
1918
43.7 mm (1.7 in)
1919
23.1 mm (0.9 in)
1920
45.7 mm (1.8 in)
1921
20.3 mm (0.8 in)
1922
18.5 mm (0.7 in)
1923
36.1 mm (1.4 in)
1924
18.5 mm (0.7 in)
1925
31.2 mm (1.2 in)
1926
63.8 mm (2.5 in)
1927
22.4 mm (0.9 in)
1928
24.1 mm (0.9 in)
1929
34.5 mm (1.4 in)
1930
29.7 mm (1.2 in)
1931
25.4 mm (1.0 in)
1932
22.4 mm (0.9 in)
1933
10.7 mm (0.4 in)
1934
20.1 mm (0.8 in)
1935
20.1 mm (0.8 in)
1936
29.7 mm (1.2 in)
1937
25.7 mm (1.0 in)
1938
32.8 mm (1.3 in)
1939
17.5 mm (0.7 in)
1940
23.6 mm (0.9 in)
1941
29.5 mm (1.2 in)
1942
20.3 mm (0.8 in)
1943
23.9 mm (0.9 in)
1944
56.6 mm (2.2 in)
1945
30.7 mm (1.2 in)
1946
24.9 mm (1.0 in)
1947
33.5 mm (1.3 in)
1948
17.5 mm (0.7 in)
1949
18.3 mm (0.7 in)
1950
17.5 mm (0.7 in)
1951
17.3 mm (0.7 in)
1952
16.5 mm (0.6 in)
1953
34.8 mm (1.4 in)
1954
28.2 mm (1.1 in)
1955
26.4 mm (1.0 in)
1956
15.5 mm (0.6 in)
1957
27.9 mm (1.1 in)
1958
19.1 mm (0.8 in)
1959
24.4 mm (1.0 in)
1960
12.2 mm (0.5 in)
1961
38.9 mm (1.5 in)
Wettest five days (Rx5day)
The wettest five days of the year at Laramie, 1892 to 1961. The record is 90.7 mm (3.6 in) in 1920, marked on the chart; the median year is 35.7 mm (1.4 in).
Wettest five days (Rx5day) at Laramie by year
Year
Wettest five days (Rx5day)
1892
21.4 mm (0.8 in)
1893
13.7 mm (0.5 in)
1894
34.2 mm (1.3 in)
1895
55.7 mm (2.2 in)
1896
58.7 mm (2.3 in)
1897
37.1 mm (1.5 in)
1898
23.6 mm (0.9 in)
1899
35.6 mm (1.4 in)
1900
31.9 mm (1.3 in)
1901
35.1 mm (1.4 in)
1902
36.9 mm (1.5 in)
1903
40.4 mm (1.6 in)
1904
37.4 mm (1.5 in)
1905
21.6 mm (0.9 in)
1906
42.2 mm (1.7 in)
1907
64.4 mm (2.5 in)
1908
76.0 mm (3.0 in)
1909
32.2 mm (1.3 in)
1910
43.9 mm (1.7 in)
1911
23.4 mm (0.9 in)
1912
39.6 mm (1.6 in)
1913
47.5 mm (1.9 in)
1914
22.1 mm (0.9 in)
1915
26.2 mm (1.0 in)
1916
30.5 mm (1.2 in)
1917
34.0 mm (1.3 in)
1918
57.7 mm (2.3 in)
1919
37.8 mm (1.5 in)
1920
90.7 mm (3.6 in)
1921
25.7 mm (1.0 in)
1922
23.3 mm (0.9 in)
1923
52.8 mm (2.1 in)
1924
40.4 mm (1.6 in)
1925
37.9 mm (1.5 in)
1926
78.6 mm (3.1 in)
1927
31.0 mm (1.2 in)
1928
35.6 mm (1.4 in)
1929
48.0 mm (1.9 in)
1930
51.5 mm (2.0 in)
1931
45.7 mm (1.8 in)
1932
27.5 mm (1.1 in)
1933
20.1 mm (0.8 in)
1934
28.2 mm (1.1 in)
1935
33.0 mm (1.3 in)
1936
47.8 mm (1.9 in)
1937
46.6 mm (1.8 in)
1938
37.4 mm (1.5 in)
1939
23.5 mm (0.9 in)
1940
46.2 mm (1.8 in)
1941
49.2 mm (1.9 in)
1942
33.3 mm (1.3 in)
1943
26.7 mm (1.1 in)
1944
60.4 mm (2.4 in)
1945
68.5 mm (2.7 in)
1946
30.3 mm (1.2 in)
1947
47.3 mm (1.9 in)
1948
23.2 mm (0.9 in)
1949
30.7 mm (1.2 in)
1950
32.5 mm (1.3 in)
1951
28.7 mm (1.1 in)
1952
27.1 mm (1.1 in)
1953
73.6 mm (2.9 in)
1954
30.8 mm (1.2 in)
1955
31.5 mm (1.2 in)
1956
44.0 mm (1.7 in)
1957
37.9 mm (1.5 in)
1958
22.9 mm (0.9 in)
1959
35.7 mm (1.4 in)
1960
24.4 mm (1.0 in)
1961
55.2 mm (2.2 in)
Longest dry spell (CDD)
The longest dry spell of the year at Laramie, 1892 to 1961. The record is 84 days in 1910, marked on the chart; the median year is 35 days.
Longest dry spell (CDD) at Laramie by year
Year
Longest dry spell (CDD)
1892
24 days
1893
38 days
1894
41 days
1895
51 days
1896
35 days
1897
16 days
1898
67 days
1899
20 days
1900
42 days
1901
51 days
1902
48 days
1903
45 days
1904
52 days
1905
35 days
1906
26 days
1907
64 days
1908
63 days
1909
24 days
1910
84 days
1911
37 days
1912
24 days
1913
20 days
1914
45 days
1915
23 days
1916
44 days
1917
32 days
1918
19 days
1919
32 days
1920
36 days
1921
36 days
1922
22 days
1923
40 days
1924
44 days
1925
39 days
1926
33 days
1927
27 days
1928
29 days
1929
30 days
1930
34 days
1931
43 days
1932
26 days
1933
35 days
1934
52 days
1935
47 days
1936
18 days
1937
18 days
1938
31 days
1939
56 days
1940
20 days
1941
22 days
1942
32 days
1943
59 days
1944
42 days
1945
19 days
1946
23 days
1947
37 days
1948
34 days
1949
41 days
1950
37 days
1951
19 days
1952
34 days
1953
37 days
1954
20 days
1955
24 days
1956
43 days
1957
40 days
1958
41 days
1959
36 days
1960
32 days
1961
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.
Frost Dates and Growing Season
63 years with a frost
Across 63 years with a frost, the median last spring frost at Laramie falls on 1 June and the median first autumn frost on 13 September, which leaves a median of 108 days between them.
In 1932 to 1961 the median growing season was 111 days. That is 11 days more than in 1893 to 1928.
Fitted over all years, the growing season changes by +3.8 days per decade at this station.
Frost dates and growing season at Laramie
Measure
Median, all years
Earliest period (1893 to 1928)
Recent period (1932 to 1961)
Recent against earliest
Fitted trend
Last spring frost
1 June
2 June
26 May
7 days earlier
-1.5 days per decade
First autumn frost
13 September
12 September
14 September
2 days later
+2.3 days per decade
Growing days
108 days
100 days
111 days
11 days more
+3.8 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.
Rainfall Return Levels
62 years, 1896 to 1961
A day with at least 24.6 mm (1.0 in) of rain is expected about once in 2 years. A day with at least 70.4 mm (2.8 in) of rain is expected about once in 100 years.
Rainfall return levels at Laramie: the daily rain expected about once in a given number of years
Expected about once in
A day with at least
Note
2 years
24.6 mm (1.0 in)
5 years
34.2 mm (1.3 in)
10 years
41.5 mm (1.6 in)
25 years
52.0 mm (2.0 in)
50 years
60.8 mm (2.4 in)
100 years
70.4 mm (2.8 in)
Longer than the 62 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, 62 years of values from 1896 to 1961.
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: 63.8 mm (2.5 in) in 1926; 56.6 mm (2.2 in) in 1944; 55.6 mm (2.2 in) in 1896.
Station Changes
No change in the annual mean temperature of this station was found against its neighbours.
Download the Data
Data for Laramie standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Laramie 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.