Record envelope, standing records and threshold days for Hill City 1 W (USC00104268), Idaho, United States, with 110 years of record.
Key Facts for Hill City 1 W
Hill City 1 W (USC00104268) is a weather station in Idaho, United States at 43.30 latitude and -115.07 longitude, 1,554 m (5,098 ft) above sea level.
The station reports from 1915 to 2024, 110 years of record.
1,464 records set at Hill City 1 W still stand.
Records are tracked for tmax, tmin, prcp, snow, snwd: an element needs 30 years of data to be eligible.
Hill City 1 W set a daily record precipitation of 25.7 mm (1.0 in) on 5 August 2023.
About the Station
Location: Idaho, United States, 43.30 latitude, -115.07 longitude.
Elevation: 1,554 m (5,098 ft).
Period of record: 1915 to 2024, 110 years.
Eligible elements: tmax, tmin, prcp, snow, snwd.
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 Hill City 1 W. 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 Hill City 1 W, with 2026 drawn through them
Month
Highest record high
Lowest record low
2026 highest maximum
2026 lowest minimum
Jan
10.0 C (50.0 F)
-42.2 C (-44.0 F)
n/a
n/a
Feb
15.0 C (59.0 F)
-40.0 C (-40.0 F)
n/a
n/a
Mar
21.1 C (70.0 F)
-32.2 C (-26.0 F)
n/a
n/a
Apr
28.3 C (82.9 F)
-22.2 C (-8.0 F)
n/a
n/a
May
32.8 C (91.0 F)
-10.0 C (14.0 F)
n/a
n/a
Jun
36.7 C (98.1 F)
-7.2 C (19.0 F)
n/a
n/a
Jul
38.9 C (102.0 F)
-6.1 C (21.0 F)
n/a
n/a
Aug
37.8 C (100.0 F)
-6.1 C (21.0 F)
n/a
n/a
Sep
36.7 C (98.1 F)
-13.3 C (8.1 F)
n/a
n/a
Oct
29.4 C (84.9 F)
-23.3 C (-9.9 F)
n/a
n/a
Nov
22.8 C (73.0 F)
-30.6 C (-23.1 F)
n/a
n/a
Dec
15.0 C (59.0 F)
-45.0 C (-49.0 F)
n/a
n/a
Which Years Hold Standing Records
1,464 standing records
Year with most
1,464 records at Hill City 1 W still stand. 1934 holds the most, with 39.
Standing records at Hill City 1 W by the year they were set
Year set
Standing records
1915
18
1916
11
1917
13
1919
6
1920
3
1922
9
1923
5
1924
31
1925
5
1926
16
1927
25
1928
17
1929
24
1930
20
1931
16
1932
15
1933
16
1934
39
1935
13
1936
23
1937
12
1938
26
1939
14
1940
22
1941
8
1942
22
1943
14
1944
7
1945
20
1946
10
1947
11
1948
10
1949
29
1950
25
1951
12
1952
14
1953
11
1954
24
1955
23
1956
17
1957
11
1958
13
1959
20
1960
15
1961
14
1962
21
1963
25
1964
16
1965
10
1966
19
1967
10
1968
22
1969
16
1970
15
1971
14
1972
20
1973
8
1974
22
1975
18
1976
20
1977
37
1978
13
1979
11
1980
21
1981
22
1982
17
1983
19
1984
21
1985
19
1986
13
1987
8
1988
16
1989
13
1990
23
1991
12
1992
36
1993
24
1994
13
1995
17
1996
18
1997
5
1998
10
1999
14
2000
3
2001
14
2002
26
2003
16
2004
10
2005
7
2006
1
All-Time Record Progression
2 new records
2 all-time records were set at Hill City 1 W between 22 December 1990 and 22 December 1990. Each dot is a new record.
When Hill City 1 W set new all-time records
Date
Kind
Detail
1990-12-22
Record low maximum temperature
Record low maximum temperature -25.6 C (-14.1 F)
1990-12-22
Record low minimum temperature
Record low minimum temperature -45.0 C (-49.0 F)
Wettest Day of Each Month
Jan: 101.6 mm (4.0 in)
The wettest day on record for each calendar month at Hill City 1 W. The most was 101.6 mm (4.0 in) on 5 January 1923.
Record daily precipitation for each month at Hill City 1 W
Month
Record daily precipitation (mm)
Date
Jan
101.6 mm (4.0 in)
5 January 1923
Feb
51.3 mm (2.0 in)
20 February 1952
Mar
35.6 mm (1.4 in)
11 March 1929
Apr
38.1 mm (1.5 in)
28 April 1951
May
30.5 mm (1.2 in)
7 May 1927
Jun
45.7 mm (1.8 in)
16 June 1963
Jul
38.6 mm (1.5 in)
22 July 1984
Aug
31.8 mm (1.3 in)
3 August 1951
Sep
29.5 mm (1.2 in)
9 September 1961
Oct
66.3 mm (2.6 in)
25 October 2021
Nov
63.2 mm (2.5 in)
27 November 1942
Dec
50.8 mm (2.0 in)
10 December 1922
Period of Record Coverage
1915 to 2006
Complete yearUnder 90 percent of days
90 years of record at Hill City 1 W, 1915 to 2006. 13 years have data for under 90 percent of days and are left out of rankings: 1915, 1916, 1917, 1919, 1920, 1922, 1923, 1928 and others.
Cooler than the station meanWarmer than the station mean
One stripe for each of 70 complete years at Hill City 1 W, 1924 to 2005. Blue stripes are years cooler than the station's own mean of 5.1 C (41.3 F); red stripes are warmer. The coolest year was 1985, at 3.0 C (37.5 F), and the warmest was 1934, at 7.2 C (45.0 F). The strongest colour marks a difference of 2.2 C (4.0 F).
Annual mean temperature at Hill City 1 W as warming stripes, 1924 to 2005
Year
Annual mean temperature
Difference from the station mean
1924
4.4 C
-0.78 C
1926
6.2 C
+1.02 C
1927
4.3 C
-0.82 C
1930
4.0 C
-1.20 C
1932
3.9 C
-1.25 C
1933
4.5 C
-0.62 C
1934
7.2 C
+2.05 C
1935
3.8 C
-1.35 C
1936
5.3 C
+0.12 C
1937
4.9 C
-0.25 C
1938
4.3 C
-0.87 C
1939
5.1 C
-0.09 C
1940
5.8 C
+0.67 C
1942
3.1 C
-2.10 C
1943
4.6 C
-0.53 C
1944
4.4 C
-0.80 C
1945
5.1 C
-0.10 C
1947
5.3 C
+0.17 C
1948
4.1 C
-1.04 C
1951
4.1 C
-1.07 C
1952
4.2 C
-0.96 C
1953
6.2 C
+1.01 C
1954
5.8 C
+0.62 C
1955
4.0 C
-1.14 C
1956
5.0 C
-0.13 C
1957
5.1 C
-0.02 C
1958
6.3 C
+1.15 C
1959
6.0 C
+0.83 C
1960
5.1 C
-0.07 C
1961
6.0 C
+0.88 C
1962
5.2 C
+0.04 C
1963
6.5 C
+1.31 C
1964
4.2 C
-1.00 C
1965
5.5 C
+0.39 C
1966
5.9 C
+0.72 C
1967
5.9 C
+0.73 C
1968
5.2 C
+0.09 C
1969
5.3 C
+0.11 C
1970
4.7 C
-0.49 C
1971
4.8 C
-0.36 C
1972
5.5 C
+0.31 C
1973
4.9 C
-0.24 C
1974
5.3 C
+0.11 C
1975
4.5 C
-0.67 C
1976
4.8 C
-0.32 C
1977
6.1 C
+0.96 C
1980
5.8 C
+0.64 C
1981
6.7 C
+1.54 C
1983
5.1 C
-0.07 C
1984
3.5 C
-1.63 C
1985
3.0 C
-2.12 C
1986
6.2 C
+1.09 C
1987
6.4 C
+1.22 C
1988
5.9 C
+0.79 C
1989
5.0 C
-0.12 C
1990
5.7 C
+0.54 C
1991
5.8 C
+0.62 C
1992
6.5 C
+1.37 C
1993
3.3 C
-1.82 C
1994
5.3 C
+0.14 C
1995
5.3 C
+0.11 C
1996
5.3 C
+0.13 C
1997
5.0 C
-0.19 C
1998
5.5 C
+0.33 C
1999
5.4 C
+0.20 C
2001
5.8 C
+0.61 C
2002
4.9 C
-0.24 C
2003
6.7 C
+1.51 C
2004
5.6 C
+0.48 C
2005
5.0 C
-0.15 C
The annual mean temperature here has risen by 0.10 C (0.01 to 0.19) per decade over 1924 to 2005. In Fahrenheit: 0.17 F (0.01 to 0.34) per decade. The slope is a straight line fitted to 70 complete years; the brackets give its 95 percent interval.
Fitted temperature trends per decade at Hill City 1 W
Measure
Per decade (C)
Per decade (F)
Period
Complete years
Reading
Annual mean temperature
0.10 C (0.01 to 0.19) per decade
0.17 F (0.01 to 0.34) per decade
1924 to 2005
70
Rise
Mean daily maximum
0.08 C (-0.03 to 0.18) per decade
0.1 F (-0.1 to 0.3) per decade
1924 to 2005
70
Not clearly different from zero
Mean daily minimum
0.12 C (0.03 to 0.21) per decade
0.22 F (0.05 to 0.39) per decade
1924 to 2005
70
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
1915 to 2024
Yearly extremes at Hill City 1 W: the record and the median year
Measure
Record
Year of the record
Median year
Years with a value
Hottest day (TXx)
38.9 C (102.0 F)
1934
36.1 C (97.0 F)
90
Coldest night (TNn)
-45.0 C (-49.0 F)
1990
-31.7 C (-25.1 F)
90
Wettest day (Rx1day)
101.6 mm (4.0 in)
1923
25.4 mm (1.0 in)
94
Wettest five days (Rx5day)
132.4 mm (5.2 in)
1993
46.8 mm (1.8 in)
94
Longest dry spell (CDD)
126 days
1940
48 days
94
Hottest day (TXx)
The hottest day of the year at Hill City 1 W, 1915 to 2024. The record is 38.9 C (102.0 F) in 1934, marked on the chart; the median year is 36.1 C (97.0 F).
Hottest day (TXx) at Hill City 1 W by year
Year
Hottest day (TXx)
1915
37.8 C (100.0 F)
1916
32.8 C (91.0 F)
1917
35.0 C (95.0 F)
1919
36.1 C (97.0 F)
1920
35.6 C (96.1 F)
1922
36.1 C (97.0 F)
1923
34.4 C (93.9 F)
1924
36.1 C (97.0 F)
1925
36.1 C (97.0 F)
1926
36.1 C (97.0 F)
1927
35.0 C (95.0 F)
1928
38.3 C (100.9 F)
1929
36.1 C (97.0 F)
1930
36.7 C (98.1 F)
1931
37.8 C (100.0 F)
1932
33.9 C (93.0 F)
1933
37.2 C (99.0 F)
1934
38.9 C (102.0 F)
1935
36.1 C (97.0 F)
1936
37.2 C (99.0 F)
1937
33.9 C (93.0 F)
1938
32.8 C (91.0 F)
1939
35.6 C (96.1 F)
1940
37.8 C (100.0 F)
1941
35.6 C (96.1 F)
1942
35.0 C (95.0 F)
1943
36.1 C (97.0 F)
1944
33.3 C (91.9 F)
1945
34.4 C (93.9 F)
1946
36.1 C (97.0 F)
1947
36.7 C (98.1 F)
1948
35.0 C (95.0 F)
1949
37.8 C (100.0 F)
1950
36.7 C (98.1 F)
1951
36.7 C (98.1 F)
1952
34.4 C (93.9 F)
1953
35.6 C (96.1 F)
1954
37.2 C (99.0 F)
1955
37.2 C (99.0 F)
1956
37.2 C (99.0 F)
1957
35.0 C (95.0 F)
1958
36.7 C (98.1 F)
1959
38.3 C (100.9 F)
1960
38.3 C (100.9 F)
1961
37.8 C (100.0 F)
1962
36.1 C (97.0 F)
1963
35.6 C (96.1 F)
1964
35.0 C (95.0 F)
1965
35.0 C (95.0 F)
1966
35.0 C (95.0 F)
1967
36.7 C (98.1 F)
1968
37.2 C (99.0 F)
1969
37.2 C (99.0 F)
1970
36.7 C (98.1 F)
1971
36.1 C (97.0 F)
1972
36.7 C (98.1 F)
1973
37.8 C (100.0 F)
1974
36.1 C (97.0 F)
1975
36.1 C (97.0 F)
1976
35.6 C (96.1 F)
1977
37.2 C (99.0 F)
1978
36.1 C (97.0 F)
1979
35.6 C (96.1 F)
1980
36.7 C (98.1 F)
1981
36.7 C (98.1 F)
1982
37.8 C (100.0 F)
1983
37.8 C (100.0 F)
1984
33.3 C (91.9 F)
1985
34.4 C (93.9 F)
1986
35.0 C (95.0 F)
1987
35.0 C (95.0 F)
1988
36.1 C (97.0 F)
1989
35.6 C (96.1 F)
1990
36.7 C (98.1 F)
1991
34.4 C (93.9 F)
1992
35.6 C (96.1 F)
1993
32.8 C (91.0 F)
1994
36.1 C (97.0 F)
1995
32.8 C (91.0 F)
1996
35.0 C (95.0 F)
1997
33.9 C (93.0 F)
1998
36.7 C (98.1 F)
1999
34.4 C (93.9 F)
2000
37.2 C (99.0 F)
2001
36.7 C (98.1 F)
2002
38.3 C (100.9 F)
2003
38.3 C (100.9 F)
2004
35.0 C (95.0 F)
2005
35.6 C (96.1 F)
2006
5.0 C (41.0 F)
2020
n/a
2021
n/a
2022
n/a
2023
n/a
2024
n/a
Coldest night (TNn)
The coldest night of the year at Hill City 1 W, 1915 to 2024. The record is -45.0 C (-49.0 F) in 1990, marked on the chart; the median year is -31.7 C (-25.1 F).
Coldest night (TNn) at Hill City 1 W by year
Year
Coldest night (TNn)
1915
-37.8 C (-36.0 F)
1916
-36.1 C (-33.0 F)
1917
-37.8 C (-36.0 F)
1919
-9.4 C (15.1 F)
1920
-7.2 C (19.0 F)
1922
-28.3 C (-18.9 F)
1923
-31.7 C (-25.1 F)
1924
-39.4 C (-38.9 F)
1925
-30.6 C (-23.1 F)
1926
-35.0 C (-31.0 F)
1927
-38.9 C (-38.0 F)
1928
-31.1 C (-24.0 F)
1929
-39.4 C (-38.9 F)
1930
-41.7 C (-43.1 F)
1931
-31.7 C (-25.1 F)
1932
-34.4 C (-29.9 F)
1933
-31.1 C (-24.0 F)
1934
-22.8 C (-9.0 F)
1935
-33.3 C (-27.9 F)
1936
-31.7 C (-25.1 F)
1937
-42.2 C (-44.0 F)
1938
-27.2 C (-17.0 F)
1939
-26.1 C (-15.0 F)
1940
-27.8 C (-18.0 F)
1941
-32.8 C (-27.0 F)
1942
-38.3 C (-36.9 F)
1943
-28.9 C (-20.0 F)
1944
-30.0 C (-22.0 F)
1945
-30.0 C (-22.0 F)
1946
-27.2 C (-17.0 F)
1947
-26.1 C (-15.0 F)
1948
-37.2 C (-35.0 F)
1949
-38.3 C (-36.9 F)
1950
-37.2 C (-35.0 F)
1951
-37.8 C (-36.0 F)
1952
-33.3 C (-27.9 F)
1953
-23.3 C (-9.9 F)
1954
-28.9 C (-20.0 F)
1955
-32.2 C (-26.0 F)
1956
-40.0 C (-40.0 F)
1957
-37.8 C (-36.0 F)
1958
-30.0 C (-22.0 F)
1959
-28.9 C (-20.0 F)
1960
-33.9 C (-29.0 F)
1961
-31.7 C (-25.1 F)
1962
-41.1 C (-42.0 F)
1963
-31.1 C (-24.0 F)
1964
-37.8 C (-36.0 F)
1965
-24.4 C (-11.9 F)
1966
-29.4 C (-20.9 F)
1967
-33.3 C (-27.9 F)
1968
-31.7 C (-25.1 F)
1969
-30.0 C (-22.0 F)
1970
-33.3 C (-27.9 F)
1971
-38.9 C (-38.0 F)
1972
-37.2 C (-35.0 F)
1973
-28.9 C (-20.0 F)
1974
-38.3 C (-36.9 F)
1975
-27.8 C (-18.0 F)
1976
-31.7 C (-25.1 F)
1977
-28.9 C (-20.0 F)
1978
-31.1 C (-24.0 F)
1979
-35.0 C (-31.0 F)
1980
-31.1 C (-24.0 F)
1981
-26.1 C (-15.0 F)
1982
-35.0 C (-31.0 F)
1983
-38.3 C (-36.9 F)
1984
-41.1 C (-42.0 F)
1985
-31.7 C (-25.1 F)
1986
-26.1 C (-15.0 F)
1987
-29.4 C (-20.9 F)
1988
-35.6 C (-32.1 F)
1989
-38.3 C (-36.9 F)
1990
-45.0 C (-49.0 F)
1991
-25.6 C (-14.1 F)
1992
-33.3 C (-27.9 F)
1993
-32.2 C (-26.0 F)
1994
-29.4 C (-20.9 F)
1995
-30.6 C (-23.1 F)
1996
-37.8 C (-36.0 F)
1997
-26.1 C (-15.0 F)
1998
-26.1 C (-15.0 F)
1999
-26.7 C (-16.1 F)
2000
-26.1 C (-15.0 F)
2001
-29.4 C (-20.9 F)
2002
-30.6 C (-23.1 F)
2003
-22.2 C (-8.0 F)
2004
-25.0 C (-13.0 F)
2005
-31.1 C (-24.0 F)
2006
-31.7 C (-25.1 F)
2020
n/a
2021
n/a
2022
n/a
2023
n/a
2024
n/a
Wettest day (Rx1day)
The wettest day of the year at Hill City 1 W, 1915 to 2024. The record is 101.6 mm (4.0 in) in 1923, marked on the chart; the median year is 25.4 mm (1.0 in).
Wettest day (Rx1day) at Hill City 1 W by year
Year
Wettest day (Rx1day)
1915
14.0 mm (0.6 in)
1916
16.5 mm (0.6 in)
1917
46.0 mm (1.8 in)
1919
5.8 mm (0.23 in)
1920
0.3 mm (0.01 in)
1922
50.8 mm (2.0 in)
1923
101.6 mm (4.0 in)
1924
29.7 mm (1.2 in)
1925
25.4 mm (1.0 in)
1926
22.4 mm (0.9 in)
1927
46.2 mm (1.8 in)
1928
25.4 mm (1.0 in)
1929
35.6 mm (1.4 in)
1930
39.6 mm (1.6 in)
1931
30.5 mm (1.2 in)
1932
20.3 mm (0.8 in)
1933
25.9 mm (1.0 in)
1934
20.8 mm (0.8 in)
1935
24.1 mm (0.9 in)
1936
22.1 mm (0.9 in)
1937
25.4 mm (1.0 in)
1938
25.4 mm (1.0 in)
1939
16.0 mm (0.6 in)
1940
24.9 mm (1.0 in)
1941
24.6 mm (1.0 in)
1942
63.2 mm (2.5 in)
1943
42.7 mm (1.7 in)
1944
16.5 mm (0.6 in)
1945
27.7 mm (1.1 in)
1946
29.0 mm (1.1 in)
1947
20.6 mm (0.8 in)
1948
31.8 mm (1.3 in)
1949
33.8 mm (1.3 in)
1950
26.7 mm (1.1 in)
1951
38.1 mm (1.5 in)
1952
51.3 mm (2.0 in)
1953
30.5 mm (1.2 in)
1954
27.7 mm (1.1 in)
1955
31.8 mm (1.3 in)
1956
27.4 mm (1.1 in)
1957
27.9 mm (1.1 in)
1958
27.9 mm (1.1 in)
1959
23.4 mm (0.9 in)
1960
22.4 mm (0.9 in)
1961
29.5 mm (1.2 in)
1962
24.1 mm (0.9 in)
1963
45.7 mm (1.8 in)
1964
33.5 mm (1.3 in)
1965
19.1 mm (0.8 in)
1966
13.5 mm (0.5 in)
1967
18.8 mm (0.7 in)
1968
31.8 mm (1.3 in)
1969
22.4 mm (0.9 in)
1970
39.6 mm (1.6 in)
1971
25.7 mm (1.0 in)
1972
22.4 mm (0.9 in)
1973
24.1 mm (0.9 in)
1974
19.8 mm (0.8 in)
1975
27.9 mm (1.1 in)
1976
22.9 mm (0.9 in)
1977
17.8 mm (0.7 in)
1978
19.8 mm (0.8 in)
1979
30.5 mm (1.2 in)
1980
39.6 mm (1.6 in)
1981
33.5 mm (1.3 in)
1982
25.4 mm (1.0 in)
1983
29.7 mm (1.2 in)
1984
38.6 mm (1.5 in)
1985
21.6 mm (0.9 in)
1986
19.3 mm (0.8 in)
1987
20.3 mm (0.8 in)
1988
25.4 mm (1.0 in)
1989
15.0 mm (0.6 in)
1990
30.5 mm (1.2 in)
1991
25.4 mm (1.0 in)
1992
20.3 mm (0.8 in)
1993
57.2 mm (2.3 in)
1994
20.6 mm (0.8 in)
1995
41.1 mm (1.6 in)
1996
24.4 mm (1.0 in)
1997
24.4 mm (1.0 in)
1998
27.9 mm (1.1 in)
1999
22.6 mm (0.9 in)
2000
23.1 mm (0.9 in)
2001
18.5 mm (0.7 in)
2002
16.5 mm (0.6 in)
2003
35.6 mm (1.4 in)
2004
27.2 mm (1.1 in)
2005
30.0 mm (1.2 in)
2006
17.3 mm (0.7 in)
2020
32.5 mm (1.3 in)
2021
66.3 mm (2.6 in)
2022
17.5 mm (0.7 in)
2023
25.7 mm (1.0 in)
2024
n/a
Wettest five days (Rx5day)
The wettest five days of the year at Hill City 1 W, 1915 to 2024. The record is 132.4 mm (5.2 in) in 1993, marked on the chart; the median year is 46.8 mm (1.8 in).
Wettest five days (Rx5day) at Hill City 1 W by year
Year
Wettest five days (Rx5day)
1915
22.7 mm (0.9 in)
1916
37.8 mm (1.5 in)
1917
46.0 mm (1.8 in)
1919
5.8 mm (0.23 in)
1920
0.3 mm (0.01 in)
1922
56.9 mm (2.2 in)
1923
101.6 mm (4.0 in)
1924
44.2 mm (1.7 in)
1925
62.9 mm (2.5 in)
1926
39.4 mm (1.6 in)
1927
72.1 mm (2.8 in)
1928
26.9 mm (1.1 in)
1929
49.8 mm (2.0 in)
1930
44.7 mm (1.8 in)
1931
57.2 mm (2.3 in)
1932
35.1 mm (1.4 in)
1933
54.1 mm (2.1 in)
1934
30.2 mm (1.2 in)
1935
40.6 mm (1.6 in)
1936
43.2 mm (1.7 in)
1937
51.9 mm (2.0 in)
1938
50.2 mm (2.0 in)
1939
18.3 mm (0.7 in)
1940
56.7 mm (2.2 in)
1941
41.2 mm (1.6 in)
1942
81.5 mm (3.2 in)
1943
63.8 mm (2.5 in)
1944
45.1 mm (1.8 in)
1945
58.4 mm (2.3 in)
1946
55.3 mm (2.2 in)
1947
31.3 mm (1.2 in)
1948
45.0 mm (1.8 in)
1949
56.7 mm (2.2 in)
1950
52.8 mm (2.1 in)
1951
49.8 mm (2.0 in)
1952
66.5 mm (2.6 in)
1953
62.0 mm (2.4 in)
1954
34.6 mm (1.4 in)
1955
83.6 mm (3.3 in)
1956
38.6 mm (1.5 in)
1957
55.9 mm (2.2 in)
1958
33.9 mm (1.3 in)
1959
37.1 mm (1.5 in)
1960
44.7 mm (1.8 in)
1961
40.4 mm (1.6 in)
1962
45.4 mm (1.8 in)
1963
95.7 mm (3.8 in)
1964
108.6 mm (4.3 in)
1965
30.0 mm (1.2 in)
1966
31.4 mm (1.2 in)
1967
40.9 mm (1.6 in)
1968
58.2 mm (2.3 in)
1969
59.8 mm (2.4 in)
1970
53.6 mm (2.1 in)
1971
84.4 mm (3.3 in)
1972
68.1 mm (2.7 in)
1973
31.0 mm (1.2 in)
1974
36.1 mm (1.4 in)
1975
45.5 mm (1.8 in)
1976
34.0 mm (1.3 in)
1977
57.0 mm (2.2 in)
1978
29.7 mm (1.2 in)
1979
47.5 mm (1.9 in)
1980
54.8 mm (2.2 in)
1981
61.0 mm (2.4 in)
1982
57.1 mm (2.2 in)
1983
50.0 mm (2.0 in)
1984
38.6 mm (1.5 in)
1985
45.5 mm (1.8 in)
1986
60.3 mm (2.4 in)
1987
23.8 mm (0.9 in)
1988
34.1 mm (1.3 in)
1989
24.6 mm (1.0 in)
1990
53.6 mm (2.1 in)
1991
42.4 mm (1.7 in)
1992
38.1 mm (1.5 in)
1993
132.4 mm (5.2 in)
1994
41.0 mm (1.6 in)
1995
57.2 mm (2.3 in)
1996
68.7 mm (2.7 in)
1997
53.1 mm (2.1 in)
1998
48.3 mm (1.9 in)
1999
38.4 mm (1.5 in)
2000
38.6 mm (1.5 in)
2001
40.1 mm (1.6 in)
2002
33.3 mm (1.3 in)
2003
63.8 mm (2.5 in)
2004
74.4 mm (2.9 in)
2005
69.0 mm (2.7 in)
2006
73.6 mm (2.9 in)
2020
52.6 mm (2.1 in)
2021
76.5 mm (3.0 in)
2022
6.6 mm (0.26 in)
2023
0.5 mm (0.02 in)
2024
n/a
Longest dry spell (CDD)
The longest dry spell of the year at Hill City 1 W, 1915 to 2024. The record is 126 days in 1940, marked on the chart; the median year is 48 days.
Longest dry spell (CDD) at Hill City 1 W by year
Year
Longest dry spell (CDD)
1915
45 days
1916
31 days
1917
52 days
1919
70 days
1920
31 days
1922
42 days
1923
36 days
1924
78 days
1925
28 days
1926
45 days
1927
25 days
1928
101 days
1929
31 days
1930
25 days
1931
94 days
1932
43 days
1933
77 days
1934
63 days
1935
97 days
1936
47 days
1937
51 days
1938
38 days
1939
62 days
1940
126 days
1941
59 days
1942
89 days
1943
97 days
1944
50 days
1945
53 days
1946
36 days
1947
53 days
1948
66 days
1949
66 days
1950
35 days
1951
47 days
1952
103 days
1953
100 days
1954
35 days
1955
58 days
1956
99 days
1957
78 days
1958
39 days
1959
49 days
1960
50 days
1961
31 days
1962
53 days
1963
46 days
1964
58 days
1965
56 days
1966
52 days
1967
74 days
1968
59 days
1969
47 days
1970
45 days
1971
49 days
1972
48 days
1973
40 days
1974
63 days
1975
43 days
1976
54 days
1977
48 days
1978
36 days
1979
44 days
1980
68 days
1981
47 days
1982
31 days
1983
26 days
1984
26 days
1985
53 days
1986
42 days
1987
78 days
1988
84 days
1989
43 days
1990
41 days
1991
57 days
1992
85 days
1993
35 days
1994
61 days
1995
45 days
1996
79 days
1997
36 days
1998
37 days
1999
54 days
2000
50 days
2001
27 days
2002
51 days
2003
42 days
2004
29 days
2005
38 days
2006
13 days
2020
9 days
2021
23 days
2022
8 days
2023
31 days
2024
n/a
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
70 years with a frost
Across 70 years with a frost, the median last spring frost at Hill City 1 W falls on 21 June and the median first autumn frost on 15 August, which leaves a median of 57 days between them.
In 1972 to 2005 the median growing season was 40 days. That is 22 days fewer than in 1924 to 1961.
Fitted over all years, the growing season changes by -1.3 days per decade at this station.
Frost dates and growing season at Hill City 1 W
Measure
Median, all years
Earliest period (1924 to 1961)
Recent period (1972 to 2005)
Recent against earliest
Fitted trend
Last spring frost
21 June
21 June
20 June
1 day earlier
+0.2 days per decade
First autumn frost
15 August
24 August
27 July
28 days earlier
-1.1 days per decade
Growing days
57 days
62 days
40 days
22 days fewer
-1.3 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
78 years, 1924 to 2005
A day with at least 25.9 mm (1.0 in) of rain is expected about once in 2 years. A day with at least 61.1 mm (2.4 in) of rain is expected about once in 100 years.
Rainfall return levels at Hill City 1 W: the daily rain expected about once in a given number of years
Expected about once in
A day with at least
Note
2 years
25.9 mm (1.0 in)
5 years
33.8 mm (1.3 in)
10 years
39.6 mm (1.6 in)
25 years
47.6 mm (1.9 in)
50 years
54.1 mm (2.1 in)
100 years
61.1 mm (2.4 in)
Longer than the 78 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, 78 years of values from 1924 to 2005.
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: 63.2 mm (2.5 in) in 1942; 57.2 mm (2.3 in) in 1993; 51.3 mm (2.0 in) in 1952.
Station Changes
1 suspected
One change was suspected in the annual mean temperature of Hill City 1 W, at 1992. Each is measured against neighbouring stations.
Relative to 5 neighbouring stations, the station's annual mean temperature from 1992 ran 0.3 C (0.6 F) lower than in the years before (likely change).
Suspected changes in the annual mean temperature at Hill City 1 W, against neighbouring stations
Year
Shift (C)
Shift (F)
Strength
Neighbours
1992
-0.3
-0.6
likely
5
Possible change at the station (a move, a new instrument or a new site); the record is kept as measured. A "likely" change has a larger test statistic than a "possible" one. Neither says why the station differs from its neighbours. How changes are found, and the largest ones.
Download the Data
Data for Hill City 1 W standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Hill City 1 W 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.