Ft Laramie 11 NNW Weather Records (USC00483490)

Record envelope, standing records and threshold days for Ft Laramie 11 NNW (USC00483490), Wyoming, United States, with 53 years of record.

Key Facts for Ft Laramie 11 NNW

Ft Laramie 11 NNW (USC00483490) is a weather station in Wyoming, United States at 42.38 latitude and -104.53 longitude, 1,452 m (4,764 ft) above sea level.
The station reports from 1927 to 1979, 53 years of record.
1,464 records set at Ft Laramie 11 NNW still stand.
Records are tracked for prcp, snow, snwd: an element needs 30 years of data to be eligible.
Ft Laramie 11 NNW set a daily record snow depth of 12.7 cm (5.0 in) on 1 February 1979.

About the Station

Location: Wyoming, United States, 42.38 latitude, -104.53 longitude.
Elevation: 1,452 m (4,764 ft).
Period of record: 1927 to 1979, 53 years.
Eligible elements: prcp, snow, snwd.

Daily Record Envelope and 2026

0 days at or beyond a record

The band shows the record high and record low for each calendar day at Ft Laramie 11 NNW. 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 Ft Laramie 11 NNW, with 2026 drawn through them
Month	Highest record high	Lowest record low	2026 highest maximum	2026 lowest minimum
Jan	21.7 C (71.1 F)	-38.3 C (-36.9 F)	n/a	n/a
Feb	22.2 C (72.0 F)	-40.0 C (-40.0 F)	n/a	n/a
Mar	26.1 C (79.0 F)	-32.2 C (-26.0 F)	n/a	n/a
Apr	29.4 C (84.9 F)	-26.1 C (-15.0 F)	n/a	n/a
May	34.4 C (93.9 F)	-8.9 C (16.0 F)	n/a	n/a
Jun	42.2 C (108.0 F)	-3.9 C (25.0 F)	n/a	n/a
Jul	41.7 C (107.1 F)	-1.1 C (30.0 F)	n/a	n/a
Aug	38.9 C (102.0 F)	-0.6 C (30.9 F)	n/a	n/a
Sep	38.9 C (102.0 F)	-12.8 C (9.0 F)	n/a	n/a
Oct	31.7 C (89.1 F)	-22.8 C (-9.0 F)	n/a	n/a
Nov	24.4 C (75.9 F)	-30.6 C (-23.1 F)	n/a	n/a
Dec	21.7 C (71.1 F)	-38.3 C (-36.9 F)	n/a	n/a

Which Years Hold Standing Records

1,464 standing records

1,464 records at Ft Laramie 11 NNW still stand. 1936 holds the most, with 112.

Standing records at Ft Laramie 11 NNW by the year they were set
Year set	Standing records
1927	15
1928	70
1929	80
1930	76
1931	75
1932	84
1933	73
1934	70
1935	60
1936	112
1937	64
1938	40
1939	80
1940	76
1948	29
1949	49
1950	100
1951	72
1952	72
1953	67
1954	80
1955	20

All-Time Record Progression

1 new records

1 all-time records were set at Ft Laramie 11 NNW between 5 May 1971 and 5 May 1971. Each dot is a new record.

Wettest Day of Each Month

May: 72.9 mm (2.9 in)

The wettest day on record for each calendar month at Ft Laramie 11 NNW. The most was 72.9 mm (2.9 in) on 5 May 1971.

Record daily precipitation for each month at Ft Laramie 11 NNW
Month	Record daily precipitation (mm)	Date
Jan	11.7 mm (0.5 in)	16 January 1930
Feb	14.0 mm (0.6 in)	10 February 1934
Mar	20.6 mm (0.8 in)	26 March 1950
Apr	43.2 mm (1.7 in)	20 April 1964
May	72.9 mm (2.9 in)	5 May 1971
Jun	67.3 mm (2.6 in)	19 June 1959
Jul	53.6 mm (2.1 in)	12 July 1937
Aug	62.2 mm (2.4 in)	28 August 1933
Sep	53.8 mm (2.1 in)	11 September 1973
Oct	32.3 mm (1.3 in)	29 October 1948
Nov	11.4 mm (0.4 in)	28 November 1928
Dec	12.7 mm (0.5 in)	4 December 1954

Period of Record Coverage

1927 to 1955

22 years of record at Ft Laramie 11 NNW, 1927 to 1955. 4 years have data for under 90 percent of days and are left out of rankings: 1927, 1938, 1948, 1955.

Days with data per year at Ft Laramie 11 NNW
Year	Days with data	Share of year	Complete
1927	43	12%	No
1928	365	100%	Yes
1929	363	99%	Yes
1930	365	100%	Yes
1931	333	91%	Yes
1932	365	100%	Yes
1933	362	99%	Yes
1934	359	98%	Yes
1935	363	99%	Yes
1936	366	100%	Yes
1937	365	100%	Yes
1938	288	79%	No
1939	333	91%	Yes
1940	363	99%	Yes
1948	153	42%	No
1949	364	100%	Yes
1950	365	100%	Yes
1951	333	91%	Yes
1952	366	100%	Yes
1953	361	99%	Yes
1954	362	99%	Yes
1955	175	48%	No

Latest Records

Latest records at Ft Laramie 11 NNW
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
1 February 1979	Ft Laramie 11 NNW, US	daily snow depth	12.7 cm (5.0 in)	5.1 cm (2.0 in)	19 years	19 of 100 (Routine)
31 January 1979	Ft Laramie 11 NNW, US	daily snow depth	12.7 cm (5.0 in)	5.1 cm (2.0 in)	47 years	29 of 100 (Routine)
30 January 1979	Ft Laramie 11 NNW, US	daily snow depth	12.7 cm (5.0 in)	5.1 cm (2.0 in)	51 years	30 of 100 (Routine)
29 January 1979	Ft Laramie 11 NNW, US	daily snowfall	4.1 cm (1.6 in)	0.5 cm (0.2 in)	13 years	10 of 100 (Routine)
29 January 1979	Ft Laramie 11 NNW, US	daily snow depth (Tie)	12.7 cm (5.0 in)	tie	48 years	4 of 100 (Routine)
15 January 1979	Ft Laramie 11 NNW, US	daily snow depth (Tie)	7.6 cm (3.0 in)	tie	48 years	4 of 100 (Routine)
14 January 1979	Ft Laramie 11 NNW, US	daily snow depth (Tie)	7.6 cm (3.0 in)	tie	48 years	4 of 100 (Routine)
13 January 1979	Ft Laramie 11 NNW, US	daily snow depth	10.2 cm (4.0 in)	2.6 cm (1.0 in)	48 years	24 of 100 (Routine)
12 January 1979	Ft Laramie 11 NNW, US	daily snow depth	10.2 cm (4.0 in)	2.6 cm (1.0 in)	16 years	14 of 100 (Routine)
11 January 1979	Ft Laramie 11 NNW, US	daily snow depth (Tie)	10.2 cm (4.0 in)	tie	3 years	1 of 100 (Routine)
7 January 1979	Ft Laramie 11 NNW, US	daily snow depth (Tie)	12.7 cm (5.0 in)	tie	39 years	4 of 100 (Routine)
4 January 1979	Ft Laramie 11 NNW, US	daily snowfall	7.1 cm (2.8 in)	0.7 cm (0.3 in)	39 years	18 of 100 (Routine)
10 December 1978	Ft Laramie 11 NNW, US	daily snow depth (Tie)	10.2 cm (4.0 in)	tie	49 years	4 of 100 (Routine)
9 December 1978	Ft Laramie 11 NNW, US	daily snow depth	12.7 cm (5.0 in)	2.5 cm (1.0 in)	49 years	26 of 100 (Routine)
8 December 1978	Ft Laramie 11 NNW, US	daily snow depth	12.7 cm (5.0 in)	2.5 cm (1.0 in)	49 years	26 of 100 (Routine)
7 December 1978	Ft Laramie 11 NNW, US	daily snow depth	12.7 cm (5.0 in)	2.5 cm (1.0 in)	49 years	26 of 100 (Routine)
6 December 1978	Ft Laramie 11 NNW, US	daily snow depth	12.7 cm (5.0 in)	2.5 cm (1.0 in)	49 years	26 of 100 (Routine)
5 December 1978	Ft Laramie 11 NNW, US	daily snow depth (Tie)	12.7 cm (5.0 in)	tie	49 years	4 of 100 (Routine)
5 December 1978	Ft Laramie 11 NNW, US	daily rain (Tie)	4.3 mm (0.17 in)	tie	24 years	3 of 100 (Routine)
2 December 1978	Ft Laramie 11 NNW, US	daily snow depth	15.2 cm (6.0 in)	2.5 cm (1.0 in)	49 years	26 of 100 (Routine)

Climate Trend

15 complete years, 1928 to 1954

One stripe for each of 15 complete years at Ft Laramie 11 NNW, 1928 to 1954. Blue stripes are years cooler than the station's own mean of 8.1 C (46.6 F); red stripes are warmer. The coolest year was 1950, at 6.9 C (44.5 F), and the warmest was 1934, at 9.8 C (49.7 F). The strongest colour marks a difference of 1.8 C (3.2 F).

Annual mean temperature at Ft Laramie 11 NNW as warming stripes, 1928 to 1954
Year	Annual mean temperature	Difference from the station mean
1928	8.1 C	+0.01 C
1929	7.0 C	-1.16 C
1930	7.7 C	-0.47 C
1932	7.8 C	-0.32 C
1933	8.9 C	+0.81 C
1934	9.8 C	+1.70 C
1935	7.8 C	-0.33 C
1936	8.0 C	-0.10 C
1937	7.0 C	-1.10 C
1940	9.0 C	+0.89 C
1949	7.8 C	-0.36 C
1950	6.9 C	-1.20 C
1952	7.7 C	-0.48 C
1953	8.8 C	+0.71 C
1954	9.5 C	+1.35 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

1927 to 1979

Yearly extremes at Ft Laramie 11 NNW: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Hottest day (TXx)	42.2 C (108.0 F)	1954	38.1 C (100.5 F)	22
Coldest night (TNn)	-40.0 C (-40.0 F)	1936	-31.7 C (-25.1 F)	23
Wettest day (Rx1day)	72.9 mm (2.9 in)	1971	29.5 mm (1.2 in)	46
Wettest five days (Rx5day)	91.2 mm (3.6 in)	1970	45.9 mm (1.8 in)	46
Longest dry spell (CDD)	75 days	1939	40 days	46

Hottest day (TXx)

The hottest day of the year at Ft Laramie 11 NNW, 1927 to 1979. The record is 42.2 C (108.0 F) in 1954, marked on the chart; the median year is 38.1 C (100.5 F).

Hottest day (TXx) at Ft Laramie 11 NNW by year
Year	Hottest day (TXx)
1927	23.9 C (75.0 F)
1928	35.0 C (95.0 F)
1929	37.2 C (99.0 F)
1930	37.8 C (100.0 F)
1931	38.3 C (100.9 F)
1932	37.8 C (100.0 F)
1933	38.9 C (102.0 F)
1934	37.2 C (99.0 F)
1935	37.8 C (100.0 F)
1936	41.1 C (106.0 F)
1937	38.3 C (100.9 F)
1938	36.1 C (97.0 F)
1939	41.7 C (107.1 F)
1940	40.6 C (105.1 F)
1948	37.8 C (100.0 F)
1949	38.9 C (102.0 F)
1950	38.9 C (102.0 F)
1951	37.2 C (99.0 F)
1952	39.4 C (102.9 F)
1953	38.9 C (102.0 F)
1954	42.2 C (108.0 F)
1955	29.4 C (84.9 F)
1956	n/a
1957	n/a
1958	n/a
1959	n/a
1960	n/a
1961	n/a
1962	n/a
1963	n/a
1964	n/a
1965	n/a
1966	n/a
1967	n/a
1968	n/a
1969	n/a
1970	n/a
1971	n/a
1972	n/a
1973	n/a
1974	n/a
1975	n/a
1976	n/a
1977	n/a
1978	n/a
1979	n/a

Coldest night (TNn)

The coldest night of the year at Ft Laramie 11 NNW, 1927 to 1979. The record is -40.0 C (-40.0 F) in 1936, marked on the chart; the median year is -31.7 C (-25.1 F).

Coldest night (TNn) at Ft Laramie 11 NNW by year
Year	Coldest night (TNn)
1927	-27.8 C (-18.0 F)
1928	-28.3 C (-18.9 F)
1929	-35.6 C (-32.1 F)
1930	-38.3 C (-36.9 F)
1931	-31.1 C (-24.0 F)
1932	-38.3 C (-36.9 F)
1933	-36.7 C (-34.1 F)
1934	-37.8 C (-36.0 F)
1935	-33.3 C (-27.9 F)
1936	-40.0 C (-40.0 F)
1937	-34.4 C (-29.9 F)
1938	-26.1 C (-15.0 F)
1939	-30.6 C (-23.1 F)
1940	-34.4 C (-29.9 F)
1948	-22.2 C (-8.0 F)
1949	-30.0 C (-22.0 F)
1950	-31.7 C (-25.1 F)
1951	-38.9 C (-38.0 F)
1952	-31.1 C (-24.0 F)
1953	-26.7 C (-16.1 F)
1954	-31.1 C (-24.0 F)
1955	-32.2 C (-26.0 F)
1956	n/a
1957	n/a
1958	n/a
1959	n/a
1960	n/a
1961	n/a
1962	n/a
1963	n/a
1964	n/a
1965	n/a
1966	n/a
1967	n/a
1968	n/a
1969	n/a
1970	n/a
1971	n/a
1972	n/a
1973	n/a
1974	n/a
1975	n/a
1976	n/a
1977	n/a
1978	-3.3 C (26.1 F)
1979	n/a

Wettest day (Rx1day)

The wettest day of the year at Ft Laramie 11 NNW, 1927 to 1979. The record is 72.9 mm (2.9 in) in 1971, marked on the chart; the median year is 29.5 mm (1.2 in).

Wettest day (Rx1day) at Ft Laramie 11 NNW by year
Year	Wettest day (Rx1day)
1927	3.0 mm (0.12 in)
1928	26.9 mm (1.1 in)
1929	35.6 mm (1.4 in)
1930	38.9 mm (1.5 in)
1931	29.5 mm (1.2 in)
1932	27.9 mm (1.1 in)
1933	62.2 mm (2.4 in)
1934	24.1 mm (0.9 in)
1935	50.3 mm (2.0 in)
1936	43.2 mm (1.7 in)
1937	53.6 mm (2.1 in)
1938	27.4 mm (1.1 in)
1939	22.4 mm (0.9 in)
1940	22.9 mm (0.9 in)
1948	32.3 mm (1.3 in)
1949	50.8 mm (2.0 in)
1950	23.6 mm (0.9 in)
1951	38.9 mm (1.5 in)
1952	20.3 mm (0.8 in)
1953	15.2 mm (0.6 in)
1954	20.3 mm (0.8 in)
1955	50.0 mm (2.0 in)
1956	23.1 mm (0.9 in)
1957	35.1 mm (1.4 in)
1958	25.9 mm (1.0 in)
1959	67.3 mm (2.6 in)
1960	16.3 mm (0.6 in)
1961	21.6 mm (0.9 in)
1962	36.8 mm (1.4 in)
1963	29.5 mm (1.2 in)
1964	43.2 mm (1.7 in)
1965	29.0 mm (1.1 in)
1966	31.8 mm (1.3 in)
1967	48.3 mm (1.9 in)
1968	27.7 mm (1.1 in)
1969	42.9 mm (1.7 in)
1970	55.9 mm (2.2 in)
1971	72.9 mm (2.9 in)
1972	29.7 mm (1.2 in)
1973	53.8 mm (2.1 in)
1974	22.9 mm (0.9 in)
1975	20.8 mm (0.8 in)
1976	34.0 mm (1.3 in)
1977	28.7 mm (1.1 in)
1978	22.4 mm (0.9 in)
1979	3.6 mm (0.14 in)

Wettest five days (Rx5day)

The wettest five days of the year at Ft Laramie 11 NNW, 1927 to 1979. The record is 91.2 mm (3.6 in) in 1970, marked on the chart; the median year is 45.9 mm (1.8 in).

Wettest five days (Rx5day) at Ft Laramie 11 NNW by year
Year	Wettest five days (Rx5day)
1927	3.0 mm (0.12 in)
1928	46.8 mm (1.8 in)
1929	40.9 mm (1.6 in)
1930	68.3 mm (2.7 in)
1931	31.8 mm (1.3 in)
1932	45.0 mm (1.8 in)
1933	80.8 mm (3.2 in)
1934	24.1 mm (0.9 in)
1935	63.6 mm (2.5 in)
1936	72.2 mm (2.8 in)
1937	64.3 mm (2.5 in)
1938	36.2 mm (1.4 in)
1939	22.4 mm (0.9 in)
1940	33.8 mm (1.3 in)
1948	34.1 mm (1.3 in)
1949	69.1 mm (2.7 in)
1950	34.5 mm (1.4 in)
1951	74.7 mm (2.9 in)
1952	30.5 mm (1.2 in)
1953	26.7 mm (1.1 in)
1954	24.6 mm (1.0 in)
1955	65.5 mm (2.6 in)
1956	24.9 mm (1.0 in)
1957	64.6 mm (2.5 in)
1958	34.2 mm (1.3 in)
1959	79.1 mm (3.1 in)
1960	24.2 mm (1.0 in)
1961	35.1 mm (1.4 in)
1962	54.0 mm (2.1 in)
1963	40.8 mm (1.6 in)
1964	47.3 mm (1.9 in)
1965	54.3 mm (2.1 in)
1966	36.7 mm (1.4 in)
1967	50.3 mm (2.0 in)
1968	40.4 mm (1.6 in)
1969	54.9 mm (2.2 in)
1970	91.2 mm (3.6 in)
1971	83.6 mm (3.3 in)
1972	54.6 mm (2.1 in)
1973	62.5 mm (2.5 in)
1974	26.4 mm (1.0 in)
1975	26.6 mm (1.0 in)
1976	65.8 mm (2.6 in)
1977	57.4 mm (2.3 in)
1978	48.0 mm (1.9 in)
1979	5.9 mm (0.23 in)

Longest dry spell (CDD)

The longest dry spell of the year at Ft Laramie 11 NNW, 1927 to 1979. The record is 75 days in 1939, marked on the chart; the median year is 40 days.

Longest dry spell (CDD) at Ft Laramie 11 NNW by year
Year	Longest dry spell (CDD)
1927	25 days
1928	37 days
1929	31 days
1930	42 days
1931	51 days
1932	28 days
1933	50 days
1934	36 days
1935	31 days
1936	27 days
1937	41 days
1938	26 days
1939	75 days
1940	39 days
1948	25 days
1949	52 days
1950	38 days
1951	29 days
1952	33 days
1953	48 days
1954	35 days
1955	24 days
1956	60 days
1957	49 days
1958	66 days
1959	50 days
1960	45 days
1961	47 days
1962	38 days
1963	50 days
1964	67 days
1965	52 days
1966	59 days
1967	36 days
1968	48 days
1969	59 days
1970	31 days
1971	45 days
1972	35 days
1973	39 days
1974	48 days
1975	32 days
1976	60 days
1977	59 days
1978	33 days
1979	36 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.

Rainfall Return Levels

41 years, 1928 to 1978

A day with at least 31.5 mm (1.2 in) of rain is expected about once in 2 years. A day with at least 88.8 mm (3.5 in) of rain is expected about once in 100 years.

Rainfall return levels at Ft Laramie 11 NNW: the daily rain expected about once in a given number of years
Expected about once in	A day with at least	Note
2 years	31.5 mm (1.2 in)
5 years	44.4 mm (1.7 in)
10 years	53.8 mm (2.1 in)
25 years	66.8 mm (2.6 in)
50 years	77.4 mm (3.0 in)	Longer than the 41 years of record
100 years	88.8 mm (3.5 in)	Longer than the 41 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, 41 years of values from 1928 to 1978.

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: 72.9 mm (2.9 in) in 1971; 67.3 mm (2.6 in) in 1959; 62.2 mm (2.4 in) in 1933.

Download the Data

Data for Ft Laramie 11 NNW standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Ft Laramie 11 NNW 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.

Data as of 2025-12-31. Last revised 31 December 2025 (2025-12-31).