Record envelope, standing records and threshold days for Rockypoint 7NNE (USC00487885), Wyoming, United States, with 100 years of record.
Key Facts for Rockypoint 7NNE
Rockypoint 7NNE (USC00487885) is a weather station in Wyoming, United States at 44.99 latitude and -105.05 longitude, 1,192 m (3,910 ft) above sea level.
The station reports from 1911 to 2010, 100 years of record.
1,464 records set at Rockypoint 7NNE still stand.
Records are tracked for tmax, tmin, prcp, snow: an element needs 30 years of data to be eligible.
Rockypoint 7NNE tied a daily record high minimum temperature of 15.0 C (59.0 F) on 28 August 2010.
About the Station
Location: Wyoming, United States, 44.99 latitude, -105.05 longitude.
Elevation: 1,192 m (3,910 ft).
Period of record: 1911 to 2010, 100 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 Rockypoint 7NNE. 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 Rockypoint 7NNE, with 2026 drawn through them
Month
Highest record high
Lowest record low
2026 highest maximum
2026 lowest minimum
Jan
16.7 C (62.1 F)
-38.3 C (-36.9 F)
n/a
n/a
Feb
18.3 C (64.9 F)
-42.8 C (-45.0 F)
n/a
n/a
Mar
25.6 C (78.1 F)
-32.8 C (-27.0 F)
n/a
n/a
Apr
29.4 C (84.9 F)
-25.0 C (-13.0 F)
n/a
n/a
May
36.7 C (98.1 F)
-12.8 C (9.0 F)
n/a
n/a
Jun
40.0 C (104.0 F)
-2.8 C (27.0 F)
n/a
n/a
Jul
41.1 C (106.0 F)
2.2 C (36.0 F)
n/a
n/a
Aug
40.6 C (105.1 F)
1.1 C (34.0 F)
n/a
n/a
Sep
37.8 C (100.0 F)
-12.2 C (10.0 F)
n/a
n/a
Oct
32.2 C (90.0 F)
-21.1 C (-6.0 F)
n/a
n/a
Nov
23.9 C (75.0 F)
-31.1 C (-24.0 F)
n/a
n/a
Dec
21.1 C (70.0 F)
-36.1 C (-33.0 F)
n/a
n/a
Which Years Hold Standing Records
1,464 standing records
Year with most
1,464 records at Rockypoint 7NNE still stand. 1936 holds the most, with 78.
Standing records at Rockypoint 7NNE by the year they were set
Year set
Standing records
1922
2
1923
17
1924
39
1925
33
1926
31
1927
33
1928
34
1929
27
1930
38
1931
66
1932
46
1933
40
1934
48
1935
38
1936
78
1937
25
1938
20
1939
48
1940
33
1941
22
1942
27
1943
45
1944
17
1945
23
1946
29
1947
23
1948
12
1949
31
1950
62
1951
42
1952
6
1953
20
1954
36
1955
42
1956
27
1957
20
1958
34
1959
2
2000
11
2001
15
2002
34
2003
29
2004
29
2005
38
2006
28
2007
28
2008
26
2009
9
2010
1
Wettest Day of Each Month
Jul: 130.8 mm (5.1 in)
The wettest day on record for each calendar month at Rockypoint 7NNE. The most was 130.8 mm (5.1 in) on 16 July 1916.
Record daily precipitation for each month at Rockypoint 7NNE
Month
Record daily precipitation (mm)
Date
Jan
25.4 mm (1.0 in)
18 January 1926
Feb
16.5 mm (0.6 in)
16 February 1928
Mar
30.5 mm (1.2 in)
9 March 1927
Apr
50.3 mm (2.0 in)
30 April 1944
May
76.2 mm (3.0 in)
6 May 2007
Jun
97.5 mm (3.8 in)
17 June 1944
Jul
130.8 mm (5.1 in)
16 July 1916
Aug
41.1 mm (1.6 in)
7 August 1954
Sep
63.8 mm (2.5 in)
15 September 1913
Oct
40.4 mm (1.6 in)
19 October 1919
Nov
36.8 mm (1.4 in)
7 November 1926
Dec
25.4 mm (1.0 in)
13 December 1935
Period of Record Coverage
1916 to 2010
Complete yearUnder 90 percent of days
50 years of record at Rockypoint 7NNE, 1916 to 2010. 17 years have data for under 90 percent of days and are left out of rankings: 1916, 1922, 1924, 1948, 1952, 1953, 1959, 2000 and others.
Cooler than the station meanWarmer than the station mean
One stripe for each of 29 complete years at Rockypoint 7NNE, 1923 to 2007. Blue stripes are years cooler than the station's own mean of 6.8 C (44.2 F); red stripes are warmer. The coolest year was 1927, at 5.3 C (41.5 F), and the warmest was 1931, at 8.8 C (47.9 F). The strongest colour marks a difference of 2.1 C (3.8 F).
Annual mean temperature at Rockypoint 7NNE as warming stripes, 1923 to 2007
Year
Annual mean temperature
Difference from the station mean
1923
6.7 C
-0.14 C
1925
7.3 C
+0.50 C
1926
7.0 C
+0.16 C
1927
5.3 C
-1.51 C
1928
6.5 C
-0.26 C
1929
5.5 C
-1.29 C
1930
7.0 C
+0.16 C
1931
8.8 C
+2.01 C
1932
6.5 C
-0.35 C
1933
7.6 C
+0.83 C
1934
8.6 C
+1.79 C
1935
6.7 C
-0.15 C
1937
5.3 C
-1.51 C
1938
6.7 C
-0.15 C
1939
7.2 C
+0.44 C
1940
7.1 C
+0.25 C
1941
7.7 C
+0.91 C
1942
6.7 C
-0.12 C
1943
7.0 C
+0.22 C
1944
5.8 C
-1.04 C
1945
5.9 C
-0.88 C
1946
7.2 C
+0.37 C
1949
6.0 C
-0.85 C
1955
5.7 C
-1.06 C
1956
6.4 C
-0.37 C
1957
6.1 C
-0.66 C
2004
7.4 C
+0.60 C
2006
8.1 C
+1.33 C
2007
7.5 C
+0.67 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 2010
Yearly extremes at Rockypoint 7NNE: 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)
1936
38.6 C (101.5 F)
50
Coldest night (TNn)
-42.8 C (-45.0 F)
1936
-32.2 C (-26.0 F)
50
Wettest day (Rx1day)
130.8 mm (5.1 in)
1916
36.2 mm (1.4 in)
60
Wettest five days (Rx5day)
130.8 mm (5.1 in)
1916
52.1 mm (2.1 in)
60
Longest dry spell (CDD)
51 days
2006
24 days
60
Hottest day (TXx)
The hottest day of the year at Rockypoint 7NNE, 1911 to 2010. The record is 41.1 C (106.0 F) in 1936, marked on the chart; the median year is 38.6 C (101.5 F).
Hottest day (TXx) at Rockypoint 7NNE by year
Year
Hottest day (TXx)
1911
n/a
1912
n/a
1913
n/a
1914
n/a
1915
n/a
1916
8.9 C (48.0 F)
1917
n/a
1918
n/a
1919
n/a
1920
n/a
1921
n/a
1922
10.0 C (50.0 F)
1923
37.2 C (99.0 F)
1924
36.7 C (98.1 F)
1925
40.0 C (104.0 F)
1926
38.9 C (102.0 F)
1927
33.3 C (91.9 F)
1928
35.6 C (96.1 F)
1929
40.6 C (105.1 F)
1930
38.9 C (102.0 F)
1931
40.6 C (105.1 F)
1932
37.8 C (100.0 F)
1933
38.9 C (102.0 F)
1934
39.4 C (102.9 F)
1935
40.6 C (105.1 F)
1936
41.1 C (106.0 F)
1937
38.9 C (102.0 F)
1938
37.2 C (99.0 F)
1939
40.6 C (105.1 F)
1940
39.4 C (102.9 F)
1941
38.9 C (102.0 F)
1942
36.7 C (98.1 F)
1943
38.3 C (100.9 F)
1944
36.1 C (97.0 F)
1945
37.8 C (100.0 F)
1946
37.2 C (99.0 F)
1947
39.4 C (102.9 F)
1948
38.9 C (102.0 F)
1949
40.6 C (105.1 F)
1950
34.4 C (93.9 F)
1951
39.4 C (102.9 F)
1952
23.9 C (75.0 F)
1953
37.2 C (99.0 F)
1954
39.4 C (102.9 F)
1955
35.6 C (96.1 F)
1956
36.7 C (98.1 F)
1957
37.8 C (100.0 F)
1958
38.9 C (102.0 F)
1959
10.6 C (51.1 F)
2000
39.4 C (102.9 F)
2001
38.3 C (100.9 F)
2002
40.6 C (105.1 F)
2003
40.0 C (104.0 F)
2004
38.3 C (100.9 F)
2005
38.9 C (102.0 F)
2006
41.1 C (106.0 F)
2007
39.4 C (102.9 F)
2008
36.1 C (97.0 F)
2009
33.9 C (93.0 F)
2010
34.4 C (93.9 F)
Coldest night (TNn)
The coldest night of the year at Rockypoint 7NNE, 1911 to 2010. The record is -42.8 C (-45.0 F) in 1936, marked on the chart; the median year is -32.2 C (-26.0 F).
Coldest night (TNn) at Rockypoint 7NNE by year
Year
Coldest night (TNn)
1911
n/a
1912
n/a
1913
n/a
1914
n/a
1915
n/a
1916
-17.8 C (0.0 F)
1917
n/a
1918
n/a
1919
n/a
1920
n/a
1921
n/a
1922
-27.8 C (-18.0 F)
1923
-35.0 C (-31.0 F)
1924
-35.6 C (-32.1 F)
1925
-26.7 C (-16.1 F)
1926
-30.0 C (-22.0 F)
1927
-36.1 C (-33.0 F)
1928
-35.6 C (-32.1 F)
1929
-33.9 C (-29.0 F)
1930
-38.3 C (-36.9 F)
1931
-24.4 C (-11.9 F)
1932
-33.9 C (-29.0 F)
1933
-35.0 C (-31.0 F)
1934
-30.0 C (-22.0 F)
1935
-33.9 C (-29.0 F)
1936
-42.8 C (-45.0 F)
1937
-33.9 C (-29.0 F)
1938
-35.6 C (-32.1 F)
1939
-35.6 C (-32.1 F)
1940
-35.0 C (-31.0 F)
1941
-25.6 C (-14.1 F)
1942
-33.3 C (-27.9 F)
1943
-35.0 C (-31.0 F)
1944
-29.4 C (-20.9 F)
1945
-32.8 C (-27.0 F)
1946
-32.2 C (-26.0 F)
1947
-27.2 C (-17.0 F)
1948
-22.8 C (-9.0 F)
1949
-37.2 C (-35.0 F)
1950
-34.4 C (-29.9 F)
1951
-34.4 C (-29.9 F)
1952
-32.2 C (-26.0 F)
1953
-22.8 C (-9.0 F)
1954
-38.3 C (-36.9 F)
1955
-31.1 C (-24.0 F)
1956
-32.2 C (-26.0 F)
1957
-36.1 C (-33.0 F)
1958
-31.7 C (-25.1 F)
1959
-31.7 C (-25.1 F)
2000
-30.6 C (-23.1 F)
2001
-25.0 C (-13.0 F)
2002
-29.4 C (-20.9 F)
2003
-27.2 C (-17.0 F)
2004
-28.9 C (-20.0 F)
2005
-30.0 C (-22.0 F)
2006
-28.9 C (-20.0 F)
2007
-32.8 C (-27.0 F)
2008
-31.1 C (-24.0 F)
2009
-21.1 C (-6.0 F)
2010
-27.2 C (-17.0 F)
Wettest day (Rx1day)
The wettest day of the year at Rockypoint 7NNE, 1911 to 2010. The record is 130.8 mm (5.1 in) in 1916, marked on the chart; the median year is 36.2 mm (1.4 in).
Wettest day (Rx1day) at Rockypoint 7NNE by year
Year
Wettest day (Rx1day)
1911
34.0 mm (1.3 in)
1912
24.6 mm (1.0 in)
1913
63.8 mm (2.5 in)
1914
38.4 mm (1.5 in)
1915
63.2 mm (2.5 in)
1916
130.8 mm (5.1 in)
1917
16.0 mm (0.6 in)
1918
27.2 mm (1.1 in)
1919
40.4 mm (1.6 in)
1920
46.2 mm (1.8 in)
1921
58.2 mm (2.3 in)
1922
43.7 mm (1.7 in)
1923
58.9 mm (2.3 in)
1924
29.7 mm (1.2 in)
1925
34.5 mm (1.4 in)
1926
42.4 mm (1.7 in)
1927
35.6 mm (1.4 in)
1928
22.9 mm (0.9 in)
1929
43.7 mm (1.7 in)
1930
63.5 mm (2.5 in)
1931
46.0 mm (1.8 in)
1932
35.6 mm (1.4 in)
1933
31.5 mm (1.2 in)
1934
22.9 mm (0.9 in)
1935
33.3 mm (1.3 in)
1936
13.7 mm (0.5 in)
1937
47.0 mm (1.9 in)
1938
40.1 mm (1.6 in)
1939
30.5 mm (1.2 in)
1940
38.1 mm (1.5 in)
1941
30.5 mm (1.2 in)
1942
20.1 mm (0.8 in)
1943
25.4 mm (1.0 in)
1944
97.5 mm (3.8 in)
1945
38.4 mm (1.5 in)
1946
49.8 mm (2.0 in)
1947
46.0 mm (1.8 in)
1948
19.6 mm (0.8 in)
1949
27.7 mm (1.1 in)
1950
31.8 mm (1.3 in)
1951
17.8 mm (0.7 in)
1952
12.7 mm (0.5 in)
1953
50.3 mm (2.0 in)
1954
41.1 mm (1.6 in)
1955
50.8 mm (2.0 in)
1956
31.0 mm (1.2 in)
1957
25.4 mm (1.0 in)
1958
34.3 mm (1.4 in)
1959
10.2 mm (0.4 in)
2000
36.8 mm (1.4 in)
2001
35.6 mm (1.4 in)
2002
40.6 mm (1.6 in)
2003
26.7 mm (1.1 in)
2004
37.1 mm (1.5 in)
2005
45.7 mm (1.8 in)
2006
57.4 mm (2.3 in)
2007
76.2 mm (3.0 in)
2008
43.7 mm (1.7 in)
2009
21.6 mm (0.9 in)
2010
8.1 mm (0.32 in)
Wettest five days (Rx5day)
The wettest five days of the year at Rockypoint 7NNE, 1911 to 2010. The record is 130.8 mm (5.1 in) in 1916, marked on the chart; the median year is 52.1 mm (2.1 in).
Wettest five days (Rx5day) at Rockypoint 7NNE by year
Year
Wettest five days (Rx5day)
1911
50.6 mm (2.0 in)
1912
39.8 mm (1.6 in)
1913
81.3 mm (3.2 in)
1914
68.9 mm (2.7 in)
1915
70.8 mm (2.8 in)
1916
130.8 mm (5.1 in)
1917
29.9 mm (1.2 in)
1918
44.6 mm (1.8 in)
1919
50.1 mm (2.0 in)
1920
61.0 mm (2.4 in)
1921
72.9 mm (2.9 in)
1922
84.9 mm (3.3 in)
1923
119.3 mm (4.7 in)
1924
24.2 mm (1.0 in)
1925
24.1 mm (0.9 in)
1926
57.4 mm (2.3 in)
1927
83.9 mm (3.3 in)
1928
15.2 mm (0.6 in)
1929
111.5 mm (4.4 in)
1930
11.4 mm (0.4 in)
1931
65.6 mm (2.6 in)
1932
60.8 mm (2.4 in)
1933
79.5 mm (3.1 in)
1934
33.3 mm (1.3 in)
1935
47.5 mm (1.9 in)
1936
24.7 mm (1.0 in)
1937
58.8 mm (2.3 in)
1938
50.2 mm (2.0 in)
1939
36.5 mm (1.4 in)
1940
51.5 mm (2.0 in)
1941
62.0 mm (2.4 in)
1942
44.8 mm (1.8 in)
1943
38.4 mm (1.5 in)
1944
59.9 mm (2.4 in)
1945
52.2 mm (2.1 in)
1946
57.9 mm (2.3 in)
1947
70.6 mm (2.8 in)
1948
34.4 mm (1.4 in)
1949
63.3 mm (2.5 in)
1950
41.9 mm (1.6 in)
1951
35.6 mm (1.4 in)
1952
19.0 mm (0.7 in)
1953
58.2 mm (2.3 in)
1954
46.2 mm (1.8 in)
1955
56.6 mm (2.2 in)
1956
47.8 mm (1.9 in)
1957
52.0 mm (2.0 in)
1958
59.0 mm (2.3 in)
1959
12.7 mm (0.5 in)
2000
40.9 mm (1.6 in)
2001
60.3 mm (2.4 in)
2002
41.9 mm (1.6 in)
2003
52.4 mm (2.1 in)
2004
43.7 mm (1.7 in)
2005
112.8 mm (4.4 in)
2006
70.6 mm (2.8 in)
2007
95.0 mm (3.7 in)
2008
101.6 mm (4.0 in)
2009
28.0 mm (1.1 in)
2010
15.0 mm (0.6 in)
Longest dry spell (CDD)
The longest dry spell of the year at Rockypoint 7NNE, 1911 to 2010. The record is 51 days in 2006, marked on the chart; the median year is 24 days.
Longest dry spell (CDD) at Rockypoint 7NNE by year
Year
Longest dry spell (CDD)
1911
19 days
1912
36 days
1913
34 days
1914
43 days
1915
17 days
1916
19 days
1917
23 days
1918
22 days
1919
30 days
1920
25 days
1921
31 days
1922
25 days
1923
15 days
1924
3 days
1925
3 days
1926
4 days
1927
3 days
1928
3 days
1929
10 days
1930
3 days
1931
35 days
1932
28 days
1933
42 days
1934
26 days
1935
15 days
1936
24 days
1937
32 days
1938
25 days
1939
23 days
1940
23 days
1941
29 days
1942
23 days
1943
38 days
1944
19 days
1945
21 days
1946
24 days
1947
22 days
1948
24 days
1949
21 days
1950
25 days
1951
33 days
1952
21 days
1953
30 days
1954
48 days
1955
23 days
1956
19 days
1957
47 days
1958
38 days
1959
18 days
2000
28 days
2001
43 days
2002
28 days
2003
26 days
2004
20 days
2005
22 days
2006
51 days
2007
26 days
2008
20 days
2009
18 days
2010
26 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
29 years with a frost
Across 29 years with a frost, the median last spring frost at Rockypoint 7NNE falls on 20 May and the median first autumn frost on 20 September, which leaves a median of 125 days between them.
Fitted over all years, the growing season changes by -0.9 days per decade at this station.
Frost dates and growing season at Rockypoint 7NNE
Measure
Median, all years
Earliest period
Recent period (1923 to 2007)
Recent against earliest
Fitted trend
Last spring frost
20 May
n/a
20 May
n/a
0.0 days per decade
First autumn frost
20 September
n/a
20 September
n/a
-0.9 days per decade
Growing days
125 days
n/a
125 days
n/a
-0.9 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
36 years, 1912 to 2007
A day with at least 36.6 mm (1.4 in) of rain is expected about once in 2 years. A day with at least 98.6 mm (3.9 in) of rain is expected about once in 100 years.
Rainfall return levels at Rockypoint 7NNE: the daily rain expected about once in a given number of years
Expected about once in
A day with at least
Note
2 years
36.6 mm (1.4 in)
5 years
51.4 mm (2.0 in)
10 years
61.9 mm (2.4 in)
25 years
76.0 mm (3.0 in)
50 years
87.1 mm (3.4 in)
Longer than the 36 years of record
100 years
98.6 mm (3.9 in)
Longer than the 36 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, 36 years of values from 1912 to 2007.
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: 97.5 mm (3.8 in) in 1944; 76.2 mm (3.0 in) in 2007; 63.8 mm (2.5 in) in 1913.
Download the Data
Data for Rockypoint 7NNE standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Rockypoint 7NNE 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.