Record envelope, standing records and threshold days for Fort Laramie (USC00483485), Wyoming, United States, with 34 years of record.
Key Facts for Fort Laramie
Fort Laramie (USC00483485) is a weather station in Wyoming, United States at 42.22 latitude and -104.52 longitude, 1,291 m (4,235 ft) above sea level.
The station reports from 1894 to 1927, 34 years of record.
1,464 records set at Fort Laramie still stand.
Records are tracked for tmax, tmin: an element needs 30 years of data to be eligible.
Fort Laramie set a daily record low maximum temperature of 23.9 C (75.0 F) on 19 August 1927.
About the Station
Location: Wyoming, United States, 42.22 latitude, -104.52 longitude.
Elevation: 1,291 m (4,235 ft).
Period of record: 1894 to 1927, 34 years.
Eligible elements: tmax, tmin.
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 Fort 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 Fort Laramie, with 2026 drawn through them
Month
Highest record high
Lowest record low
2026 highest maximum
2026 lowest minimum
Jan
22.8 C (73.0 F)
-40.0 C (-40.0 F)
n/a
n/a
Feb
21.1 C (70.0 F)
-44.4 C (-47.9 F)
n/a
n/a
Mar
27.2 C (81.0 F)
-31.7 C (-25.1 F)
n/a
n/a
Apr
33.3 C (91.9 F)
-17.8 C (0.0 F)
n/a
n/a
May
33.9 C (93.0 F)
-8.9 C (16.0 F)
n/a
n/a
Jun
38.9 C (102.0 F)
-2.2 C (28.0 F)
n/a
n/a
Jul
41.1 C (106.0 F)
0.0 C (32.0 F)
n/a
n/a
Aug
40.0 C (104.0 F)
-1.7 C (28.9 F)
n/a
n/a
Sep
40.0 C (104.0 F)
-11.1 C (12.0 F)
n/a
n/a
Oct
33.3 C (91.9 F)
-23.9 C (-11.0 F)
n/a
n/a
Nov
27.2 C (81.0 F)
-35.0 C (-31.0 F)
n/a
n/a
Dec
23.9 C (75.0 F)
-40.6 C (-41.1 F)
n/a
n/a
Which Years Hold Standing Records
1,464 standing records
Year with most
1,464 records at Fort Laramie still stand. 1896 holds the most, with 65.
Standing records at Fort Laramie by the year they were set
Year set
Standing records
1894
17
1895
53
1896
65
1897
38
1898
53
1899
54
1900
54
1901
49
1902
51
1903
50
1904
46
1905
43
1906
42
1907
44
1908
30
1909
57
1910
65
1911
47
1912
40
1913
43
1914
27
1915
42
1916
38
1917
42
1918
39
1919
39
1920
51
1921
52
1922
31
1923
7
1924
47
1925
43
1926
25
1927
40
Wettest Day of Each Month
May: 78.5 mm (3.1 in)
The wettest day on record for each calendar month at Fort Laramie. The most was 78.5 mm (3.1 in) on 31 May 1908.
Record daily precipitation for each month at Fort Laramie
Month
Record daily precipitation (mm)
Date
Jan
60.5 mm (2.4 in)
25 January 1921
Feb
25.4 mm (1.0 in)
19 February 1918
Mar
33.0 mm (1.3 in)
30 March 1897
Apr
58.4 mm (2.3 in)
30 April 1915
May
78.5 mm (3.1 in)
31 May 1908
Jun
65.5 mm (2.6 in)
15 June 1901
Jul
40.9 mm (1.6 in)
14 July 1918
Aug
44.2 mm (1.7 in)
21 August 1918
Sep
46.7 mm (1.8 in)
10 September 1912
Oct
33.0 mm (1.3 in)
16 October 1915
Nov
20.6 mm (0.8 in)
5 November 1922
Dec
20.8 mm (0.8 in)
14 December 1925
Period of Record Coverage
1894 to 1927
Complete yearUnder 90 percent of days
34 years of record at Fort Laramie, 1894 to 1927. 9 years have data for under 90 percent of days and are left out of rankings: 1894, 1906, 1912, 1913, 1917, 1920, 1921, 1923 and others.
Cooler than the station meanWarmer than the station mean
One stripe for each of 23 complete years at Fort Laramie, 1895 to 1926. Blue stripes are years cooler than the station's own mean of 8.5 C (47.3 F); red stripes are warmer. The coolest year was 1899, at 7.4 C (45.3 F), and the warmest was 1910, at 10.0 C (49.9 F). The strongest colour marks a difference of 1.5 C (2.7 F).
Annual mean temperature at Fort Laramie as warming stripes, 1895 to 1926
Year
Annual mean temperature
Difference from the station mean
1895
7.8 C
-0.69 C
1896
9.1 C
+0.60 C
1897
9.2 C
+0.69 C
1898
8.0 C
-0.45 C
1899
7.4 C
-1.11 C
1900
9.9 C
+1.40 C
1901
8.8 C
+0.28 C
1902
8.7 C
+0.22 C
1903
8.3 C
-0.15 C
1905
7.7 C
-0.82 C
1907
8.3 C
-0.14 C
1909
8.1 C
-0.38 C
1910
10.0 C
+1.49 C
1911
8.8 C
+0.27 C
1914
9.3 C
+0.80 C
1915
7.6 C
-0.87 C
1916
8.0 C
-0.46 C
1918
8.2 C
-0.31 C
1919
8.4 C
-0.08 C
1922
8.3 C
-0.16 C
1924
7.6 C
-0.87 C
1925
9.0 C
+0.54 C
1926
8.8 C
+0.30 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
1894 to 1927
Yearly extremes at Fort Laramie: the record and the median year
Measure
Record
Year of the record
Median year
Years with a value
Hottest day (TXx)
41.1 C (106.0 F)
1901
38.9 C (102.0 F)
34
Coldest night (TNn)
-44.4 C (-47.9 F)
1899
-31.1 C (-24.0 F)
34
Wettest day (Rx1day)
78.5 mm (3.1 in)
1908
37.6 mm (1.5 in)
34
Wettest five days (Rx5day)
120.9 mm (4.8 in)
1915
51.8 mm (2.0 in)
33
Longest dry spell (CDD)
68 days
1908
33 days
34
Hottest day (TXx)
The hottest day of the year at Fort Laramie, 1894 to 1927. The record is 41.1 C (106.0 F) in 1901, marked on the chart; the median year is 38.9 C (102.0 F).
Hottest day (TXx) at Fort Laramie by year
Year
Hottest day (TXx)
1894
32.8 C (91.0 F)
1895
38.3 C (100.9 F)
1896
38.3 C (100.9 F)
1897
40.0 C (104.0 F)
1898
38.9 C (102.0 F)
1899
39.4 C (102.9 F)
1900
39.4 C (102.9 F)
1901
41.1 C (106.0 F)
1902
39.4 C (102.9 F)
1903
38.9 C (102.0 F)
1904
40.0 C (104.0 F)
1905
38.3 C (100.9 F)
1906
37.8 C (100.0 F)
1907
37.8 C (100.0 F)
1908
37.8 C (100.0 F)
1909
38.3 C (100.9 F)
1910
40.0 C (104.0 F)
1911
39.4 C (102.9 F)
1912
37.8 C (100.0 F)
1913
40.0 C (104.0 F)
1914
37.8 C (100.0 F)
1915
37.2 C (99.0 F)
1916
38.9 C (102.0 F)
1917
39.4 C (102.9 F)
1918
37.8 C (100.0 F)
1919
38.9 C (102.0 F)
1920
38.9 C (102.0 F)
1921
40.6 C (105.1 F)
1922
38.9 C (102.0 F)
1923
18.9 C (66.0 F)
1924
37.2 C (99.0 F)
1925
38.9 C (102.0 F)
1926
38.3 C (100.9 F)
1927
37.8 C (100.0 F)
Coldest night (TNn)
The coldest night of the year at Fort Laramie, 1894 to 1927. The record is -44.4 C (-47.9 F) in 1899, marked on the chart; the median year is -31.1 C (-24.0 F).
Coldest night (TNn) at Fort Laramie by year
Year
Coldest night (TNn)
1894
-27.8 C (-18.0 F)
1895
-32.2 C (-26.0 F)
1896
-28.9 C (-20.0 F)
1897
-30.0 C (-22.0 F)
1898
-31.1 C (-24.0 F)
1899
-44.4 C (-47.9 F)
1900
-28.9 C (-20.0 F)
1901
-40.6 C (-41.1 F)
1902
-34.4 C (-29.9 F)
1903
-32.2 C (-26.0 F)
1904
-26.1 C (-15.0 F)
1905
-35.6 C (-32.1 F)
1906
-27.8 C (-18.0 F)
1907
-28.9 C (-20.0 F)
1908
-30.6 C (-23.1 F)
1909
-31.1 C (-24.0 F)
1910
-24.4 C (-11.9 F)
1911
-27.8 C (-18.0 F)
1912
-31.7 C (-25.1 F)
1913
-40.0 C (-40.0 F)
1914
-29.4 C (-20.9 F)
1915
-31.1 C (-24.0 F)
1916
-35.0 C (-31.0 F)
1917
-34.4 C (-29.9 F)
1918
-30.6 C (-23.1 F)
1919
-40.6 C (-41.1 F)
1920
-32.2 C (-26.0 F)
1921
-28.9 C (-20.0 F)
1922
-31.7 C (-25.1 F)
1923
-40.0 C (-40.0 F)
1924
-33.3 C (-27.9 F)
1925
-30.0 C (-22.0 F)
1926
-28.3 C (-18.9 F)
1927
-35.6 C (-32.1 F)
Wettest day (Rx1day)
The wettest day of the year at Fort Laramie, 1894 to 1927. The record is 78.5 mm (3.1 in) in 1908, marked on the chart; the median year is 37.6 mm (1.5 in).
Wettest day (Rx1day) at Fort Laramie by year
Year
Wettest day (Rx1day)
1894
4.3 mm (0.17 in)
1895
38.6 mm (1.5 in)
1896
50.8 mm (2.0 in)
1897
38.1 mm (1.5 in)
1898
25.1 mm (1.0 in)
1899
65.3 mm (2.6 in)
1900
44.2 mm (1.7 in)
1901
65.5 mm (2.6 in)
1902
51.3 mm (2.0 in)
1903
36.6 mm (1.4 in)
1904
31.0 mm (1.2 in)
1905
29.7 mm (1.2 in)
1906
39.4 mm (1.6 in)
1907
29.2 mm (1.1 in)
1908
78.5 mm (3.1 in)
1909
36.8 mm (1.4 in)
1910
33.3 mm (1.3 in)
1911
33.0 mm (1.3 in)
1912
46.7 mm (1.8 in)
1913
37.1 mm (1.5 in)
1914
22.1 mm (0.9 in)
1915
58.4 mm (2.3 in)
1916
30.5 mm (1.2 in)
1917
28.2 mm (1.1 in)
1918
44.2 mm (1.7 in)
1919
18.8 mm (0.7 in)
1920
41.1 mm (1.6 in)
1921
60.5 mm (2.4 in)
1922
38.1 mm (1.5 in)
1923
5.8 mm (0.23 in)
1924
23.4 mm (0.9 in)
1925
41.1 mm (1.6 in)
1926
26.2 mm (1.0 in)
1927
46.2 mm (1.8 in)
Wettest five days (Rx5day)
The wettest five days of the year at Fort Laramie, 1894 to 1927. The record is 120.9 mm (4.8 in) in 1915, marked on the chart; the median year is 51.8 mm (2.0 in).
Wettest five days (Rx5day) at Fort Laramie by year
Year
Wettest five days (Rx5day)
1894
4.3 mm (0.17 in)
1895
110.5 mm (4.4 in)
1896
89.4 mm (3.5 in)
1897
56.1 mm (2.2 in)
1898
58.4 mm (2.3 in)
1899
88.4 mm (3.5 in)
1900
55.6 mm (2.2 in)
1901
75.9 mm (3.0 in)
1902
74.4 mm (2.9 in)
1903
44.2 mm (1.7 in)
1904
61.2 mm (2.4 in)
1905
46.5 mm (1.8 in)
1906
63.5 mm (2.5 in)
1907
43.8 mm (1.7 in)
1908
17.8 mm (0.7 in)
1909
71.9 mm (2.8 in)
1910
40.9 mm (1.6 in)
1911
35.5 mm (1.4 in)
1912
51.8 mm (2.0 in)
1913
59.4 mm (2.3 in)
1914
43.7 mm (1.7 in)
1915
120.9 mm (4.8 in)
1916
33.1 mm (1.3 in)
1917
42.5 mm (1.7 in)
1918
51.5 mm (2.0 in)
1919
29.7 mm (1.2 in)
1920
51.9 mm (2.0 in)
1921
9.7 mm (0.38 in)
1922
52.6 mm (2.1 in)
1923
n/a
1924
32.8 mm (1.3 in)
1925
14.2 mm (0.6 in)
1926
35.0 mm (1.4 in)
1927
59.1 mm (2.3 in)
Longest dry spell (CDD)
The longest dry spell of the year at Fort Laramie, 1894 to 1927. The record is 68 days in 1908, marked on the chart; the median year is 33 days.
Longest dry spell (CDD) at Fort Laramie by year
Year
Longest dry spell (CDD)
1894
22 days
1895
30 days
1896
32 days
1897
28 days
1898
29 days
1899
40 days
1900
41 days
1901
33 days
1902
45 days
1903
36 days
1904
41 days
1905
34 days
1906
34 days
1907
48 days
1908
68 days
1909
36 days
1910
64 days
1911
56 days
1912
47 days
1913
28 days
1914
52 days
1915
59 days
1916
23 days
1917
28 days
1918
27 days
1919
32 days
1920
39 days
1921
16 days
1922
1 day
1923
1 day
1924
21 days
1925
7 days
1926
8 days
1927
1 day
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
23 years with a frost
Across 23 years with a frost, the median last spring frost at Fort Laramie falls on 17 May and the median first autumn frost on 20 September, which leaves a median of 123 days between them.
Frost dates and growing season at Fort Laramie
Measure
Median, all years
Earliest period
Recent period (1895 to 1926)
Recent against earliest
Fitted trend
Last spring frost
17 May
n/a
17 May
n/a
n/a
First autumn frost
20 September
n/a
20 September
n/a
n/a
Growing days
123 days
n/a
123 days
n/a
n/a
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 Fort Laramie standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Fort 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.