Record envelope, standing records and threshold days for Opheim 10 N (USC00246236), Montana, United States, with 70 years of record.
Key Facts for Opheim 10 N
Opheim 10 N (USC00246236) is a weather station in Montana, United States at 49.00 latitude and -106.38 longitude, 878 m (2,880 ft) above sea level.
The station reports from 1956 to 2025, 70 years of record.
1,464 records set at Opheim 10 N still stand.
Records are tracked for tmax, tmin, prcp, snow, snwd: an element needs 30 years of data to be eligible.
Opheim 10 N set a daily record precipitation of 8.9 mm (0.35 in) on 30 March 2026.
About the Station
Location: Montana, United States, 49.00 latitude, -106.38 longitude.
Elevation: 878 m (2,880 ft).
Period of record: 1956 to 2025, 70 years.
Eligible elements: tmax, tmin, prcp, snow, snwd.
Daily Record Envelope and 2026
9 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 Opheim 10 N. The lines show the 2026 daily maximum and minimum. 9 days in 2026 matched or passed a record. Temperatures are in degrees Celsius.
Daily record high and record low at Opheim 10 N, with 2026 drawn through them
Month
Highest record high
Lowest record low
2026 highest maximum
2026 lowest minimum
Jan
13.3 C (55.9 F)
-45.6 C (-50.1 F)
5.6 C (42.1 F)
-35.6 C (-32.1 F)
Feb
17.8 C (64.0 F)
-46.1 C (-51.0 F)
11.1 C (52.0 F)
-26.1 C (-15.0 F)
Mar
22.8 C (73.0 F)
-38.3 C (-36.9 F)
21.1 C (70.0 F)
-18.3 C (-0.9 F)
Apr
32.8 C (91.0 F)
-27.8 C (-18.0 F)
n/a
n/a
May
36.7 C (98.1 F)
-13.3 C (8.1 F)
n/a
n/a
Jun
40.6 C (105.1 F)
-6.7 C (19.9 F)
n/a
n/a
Jul
39.4 C (102.9 F)
-1.7 C (28.9 F)
n/a
n/a
Aug
40.0 C (104.0 F)
-3.9 C (25.0 F)
n/a
n/a
Sep
36.7 C (98.1 F)
-16.7 C (1.9 F)
n/a
n/a
Oct
31.7 C (89.1 F)
-28.3 C (-18.9 F)
n/a
n/a
Nov
24.4 C (75.9 F)
-35.6 C (-32.1 F)
n/a
n/a
Dec
12.8 C (55.0 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 Opheim 10 N still stand. 1992 holds the most, with 47.
Standing records at Opheim 10 N by the year they were set
Year set
Standing records
1959
15
1960
23
1961
31
1962
37
1963
37
1964
33
1965
39
1966
21
1967
24
1968
25
1969
42
1970
15
1971
16
1972
36
1973
16
1974
12
1975
15
1976
9
1977
27
1978
20
1979
25
1980
33
1981
24
1982
19
1983
21
1984
22
1985
43
1986
18
1987
36
1988
43
1989
20
1990
11
1991
34
1992
47
1993
20
1994
16
1995
24
1996
29
1997
22
1998
17
1999
17
2000
20
2001
12
2002
40
2003
5
2005
12
2006
11
2007
20
2008
9
2009
27
2010
3
2011
7
2012
14
2013
13
2014
22
2015
26
2016
7
2017
33
2018
26
2019
13
2020
18
2021
19
2022
21
2023
5
2024
13
2025
21
2026
13
All-Time Record Progression
3 new records
3 all-time records were set at Opheim 10 N between 7 May 1988 and 4 July 1993. Each dot is a new record.
When Opheim 10 N set new all-time records
Date
Kind
Detail
1988-05-07
Record daily precipitation
Record daily precipitation 62.0 mm (2.4 in)
1993-06-16
Record daily precipitation
Record daily precipitation 63.5 mm (2.5 in)
1993-07-04
Record daily precipitation
Record daily precipitation 75.2 mm (3.0 in)
Wettest Day of Each Month
Jul: 75.2 mm (3.0 in)
The wettest day on record for each calendar month at Opheim 10 N. The most was 75.2 mm (3.0 in) on 4 July 1993.
Record daily precipitation for each month at Opheim 10 N
Month
Record daily precipitation (mm)
Date
Jan
15.5 mm (0.6 in)
25 January 1994
Feb
12.7 mm (0.5 in)
22 February 1965
Mar
41.7 mm (1.6 in)
14 March 1990
Apr
53.3 mm (2.1 in)
21 April 1997
May
62.0 mm (2.4 in)
7 May 1988
Jun
63.5 mm (2.5 in)
16 June 1993
Jul
75.2 mm (3.0 in)
4 July 1993
Aug
47.8 mm (1.9 in)
15 August 1968
Sep
50.8 mm (2.0 in)
7 September 2013
Oct
22.9 mm (0.9 in)
3 October 1998
Nov
20.3 mm (0.8 in)
3 November 2005
Dec
12.7 mm (0.5 in)
16 December 2013
Period of Record Coverage
1959 to 2026
Complete yearUnder 90 percent of days
67 years of record at Opheim 10 N, 1959 to 2026. 17 years have data for under 90 percent of days and are left out of rankings: 1959, 1971, 1976, 1977, 1996, 2000, 2003, 2005 and others.
Cooler than the station meanWarmer than the station mean
One stripe for each of 46 complete years at Opheim 10 N, 1960 to 2025. Blue stripes are years cooler than the station's own mean of 4.0 C (39.2 F); red stripes are warmer. The coolest year was 1965, at 1.5 C (34.7 F), and the warmest was 1987, at 6.4 C (43.5 F). The strongest colour marks a difference of 2.5 C (4.5 F).
Annual mean temperature at Opheim 10 N as warming stripes, 1960 to 2025
Year
Annual mean temperature
Difference from the station mean
1960
3.1 C
-0.84 C
1961
4.6 C
+0.62 C
1962
3.7 C
-0.27 C
1963
5.2 C
+1.23 C
1964
4.0 C
-0.02 C
1965
1.5 C
-2.48 C
1967
2.8 C
-1.19 C
1968
3.6 C
-0.42 C
1969
3.0 C
-1.00 C
1970
2.9 C
-1.04 C
1972
2.4 C
-1.57 C
1973
4.4 C
+0.43 C
1974
3.6 C
-0.35 C
1978
2.2 C
-1.76 C
1979
2.7 C
-1.30 C
1980
4.1 C
+0.07 C
1981
5.9 C
+1.87 C
1982
1.9 C
-2.06 C
1983
4.3 C
+0.30 C
1984
4.3 C
+0.28 C
1985
2.8 C
-1.20 C
1986
5.1 C
+1.13 C
1987
6.4 C
+2.43 C
1988
5.2 C
+1.18 C
1989
3.5 C
-0.46 C
1990
5.1 C
+1.07 C
1991
5.1 C
+1.11 C
1992
5.2 C
+1.26 C
1993
2.9 C
-1.08 C
1994
4.1 C
+0.09 C
1995
3.4 C
-0.60 C
1996
1.7 C
-2.30 C
1997
3.9 C
-0.07 C
1998
5.1 C
+1.14 C
1999
4.8 C
+0.81 C
2001
4.5 C
+0.56 C
2002
2.9 C
-1.13 C
2006
5.3 C
+1.36 C
2007
5.0 C
+1.04 C
2011
3.3 C
-0.68 C
2014
3.4 C
-0.63 C
2015
5.5 C
+1.51 C
2017
4.7 C
+0.72 C
2021
4.2 C
+0.23 C
2024
5.2 C
+1.18 C
2025
4.8 C
+0.78 C
The annual mean temperature here has risen by 0.21 C (0.02 to 0.40) per decade over 1960 to 2025. In Fahrenheit: 0.38 F (0.04 to 0.71) per decade. The slope is a straight line fitted to 46 complete years; the brackets give its 95 percent interval.
Fitted temperature trends per decade at Opheim 10 N
Measure
Per decade (C)
Per decade (F)
Period
Complete years
Reading
Annual mean temperature
0.21 C (0.02 to 0.40) per decade
0.38 F (0.04 to 0.71) per decade
1960 to 2025
46
Rise
Mean daily maximum
0.1 C (-0.1 to 0.3) per decade
0.2 F (-0.2 to 0.6) per decade
1960 to 2025
46
Not clearly different from zero
Mean daily minimum
0.3 C (0.1 to 0.5) per decade
0.6 F (0.2 to 0.9) per decade
1960 to 2025
46
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
1956 to 2026
Yearly extremes at Opheim 10 N: the record and the median year
Measure
Record
Year of the record
Median year
Years with a value
Hottest day (TXx)
40.6 C (105.1 F)
1988
36.1 C (97.0 F)
67
Coldest night (TNn)
-46.1 C (-51.0 F)
1962
-37.8 C (-36.0 F)
67
Wettest day (Rx1day)
75.2 mm (3.0 in)
1993
34.2 mm (1.3 in)
70
Wettest five days (Rx5day)
103.1 mm (4.1 in)
2002
47.6 mm (1.9 in)
70
Longest dry spell (CDD)
120 days
2010
42 days
70
Hottest day (TXx)
The hottest day of the year at Opheim 10 N, 1956 to 2026. The record is 40.6 C (105.1 F) in 1988, marked on the chart; the median year is 36.1 C (97.0 F).
Hottest day (TXx) at Opheim 10 N by year
Year
Hottest day (TXx)
1956
n/a
1957
n/a
1958
n/a
1959
37.8 C (100.0 F)
1960
37.8 C (100.0 F)
1961
37.8 C (100.0 F)
1962
36.1 C (97.0 F)
1963
36.7 C (98.1 F)
1964
38.9 C (102.0 F)
1965
35.0 C (95.0 F)
1966
35.0 C (95.0 F)
1967
35.0 C (95.0 F)
1968
36.7 C (98.1 F)
1969
38.3 C (100.9 F)
1970
36.7 C (98.1 F)
1971
38.9 C (102.0 F)
1972
35.0 C (95.0 F)
1973
37.2 C (99.0 F)
1974
35.0 C (95.0 F)
1975
39.4 C (102.9 F)
1976
36.7 C (98.1 F)
1977
33.9 C (93.0 F)
1978
36.7 C (98.1 F)
1979
35.0 C (95.0 F)
1980
35.6 C (96.1 F)
1981
37.2 C (99.0 F)
1982
33.3 C (91.9 F)
1983
40.0 C (104.0 F)
1984
36.7 C (98.1 F)
1985
38.3 C (100.9 F)
1986
35.0 C (95.0 F)
1987
35.0 C (95.0 F)
1988
40.6 C (105.1 F)
1989
37.2 C (99.0 F)
1990
36.7 C (98.1 F)
1991
36.7 C (98.1 F)
1992
34.4 C (93.9 F)
1993
32.2 C (90.0 F)
1994
34.4 C (93.9 F)
1995
36.7 C (98.1 F)
1996
33.9 C (93.0 F)
1997
33.9 C (93.0 F)
1998
36.7 C (98.1 F)
1999
35.0 C (95.0 F)
2000
34.4 C (93.9 F)
2001
36.1 C (97.0 F)
2002
35.0 C (95.0 F)
2003
26.1 C (79.0 F)
2005
36.7 C (98.1 F)
2006
35.6 C (96.1 F)
2007
38.9 C (102.0 F)
2008
33.3 C (91.9 F)
2009
36.1 C (97.0 F)
2010
35.0 C (95.0 F)
2011
35.6 C (96.1 F)
2012
35.0 C (95.0 F)
2013
35.0 C (95.0 F)
2014
32.8 C (91.0 F)
2015
37.2 C (99.0 F)
2016
33.9 C (93.0 F)
2017
37.8 C (100.0 F)
2018
38.9 C (102.0 F)
2019
34.4 C (93.9 F)
2020
35.0 C (95.0 F)
2021
36.7 C (98.1 F)
2022
35.6 C (96.1 F)
2023
36.7 C (98.1 F)
2024
39.4 C (102.9 F)
2025
36.1 C (97.0 F)
2026
21.1 C (70.0 F)
Coldest night (TNn)
The coldest night of the year at Opheim 10 N, 1956 to 2026. The record is -46.1 C (-51.0 F) in 1962, marked on the chart; the median year is -37.8 C (-36.0 F).
Coldest night (TNn) at Opheim 10 N by year
Year
Coldest night (TNn)
1956
n/a
1957
n/a
1958
n/a
1959
-29.4 C (-20.9 F)
1960
-37.2 C (-35.0 F)
1961
-36.1 C (-33.0 F)
1962
-46.1 C (-51.0 F)
1963
-38.3 C (-36.9 F)
1964
-37.2 C (-35.0 F)
1965
-37.2 C (-35.0 F)
1966
-38.9 C (-38.0 F)
1967
-44.4 C (-47.9 F)
1968
-42.8 C (-45.0 F)
1969
-45.6 C (-50.1 F)
1970
-41.7 C (-43.1 F)
1971
-36.7 C (-34.1 F)
1972
-42.8 C (-45.0 F)
1973
-36.7 C (-34.1 F)
1974
-44.4 C (-47.9 F)
1975
-36.1 C (-33.0 F)
1976
-34.4 C (-29.9 F)
1977
-43.3 C (-45.9 F)
1978
-37.8 C (-36.0 F)
1979
-37.8 C (-36.0 F)
1980
-38.9 C (-38.0 F)
1981
-33.3 C (-27.9 F)
1982
-39.4 C (-38.9 F)
1983
-43.9 C (-47.0 F)
1984
-38.3 C (-36.9 F)
1985
-37.8 C (-36.0 F)
1986
-40.6 C (-41.1 F)
1987
-27.2 C (-17.0 F)
1988
-42.2 C (-44.0 F)
1989
-41.7 C (-43.1 F)
1990
-40.6 C (-41.1 F)
1991
-39.4 C (-38.9 F)
1992
-33.3 C (-27.9 F)
1993
-37.2 C (-35.0 F)
1994
-43.3 C (-45.9 F)
1995
-34.4 C (-29.9 F)
1996
-40.6 C (-41.1 F)
1997
-40.0 C (-40.0 F)
1998
-38.3 C (-36.9 F)
1999
-31.1 C (-24.0 F)
2000
-36.1 C (-33.0 F)
2001
-35.6 C (-32.1 F)
2002
-38.3 C (-36.9 F)
2003
-39.4 C (-38.9 F)
2005
-32.8 C (-27.0 F)
2006
-33.3 C (-27.9 F)
2007
-36.7 C (-34.1 F)
2008
-31.1 C (-24.0 F)
2009
-38.3 C (-36.9 F)
2010
-37.8 C (-36.0 F)
2011
-41.7 C (-43.1 F)
2012
-33.3 C (-27.9 F)
2013
-37.2 C (-35.0 F)
2014
-36.1 C (-33.0 F)
2015
-34.4 C (-29.9 F)
2016
-36.1 C (-33.0 F)
2017
-45.0 C (-49.0 F)
2018
-42.2 C (-44.0 F)
2019
-45.6 C (-50.1 F)
2020
-32.8 C (-27.0 F)
2021
-38.9 C (-38.0 F)
2022
-37.2 C (-35.0 F)
2023
-25.0 C (-13.0 F)
2024
-40.0 C (-40.0 F)
2025
-38.9 C (-38.0 F)
2026
-35.6 C (-32.1 F)
Wettest day (Rx1day)
The wettest day of the year at Opheim 10 N, 1956 to 2026. The record is 75.2 mm (3.0 in) in 1993, marked on the chart; the median year is 34.2 mm (1.3 in).
Wettest day (Rx1day) at Opheim 10 N by year
Year
Wettest day (Rx1day)
1956
6.1 mm (0.24 in)
1957
21.3 mm (0.8 in)
1958
16.0 mm (0.6 in)
1959
19.1 mm (0.8 in)
1960
22.6 mm (0.9 in)
1961
24.4 mm (1.0 in)
1962
23.9 mm (0.9 in)
1963
54.6 mm (2.1 in)
1964
41.9 mm (1.6 in)
1965
33.8 mm (1.3 in)
1966
38.1 mm (1.5 in)
1967
18.0 mm (0.7 in)
1968
47.8 mm (1.9 in)
1969
47.8 mm (1.9 in)
1970
29.7 mm (1.2 in)
1971
26.7 mm (1.1 in)
1972
41.4 mm (1.6 in)
1973
38.4 mm (1.5 in)
1974
36.6 mm (1.4 in)
1975
35.1 mm (1.4 in)
1976
36.1 mm (1.4 in)
1977
33.0 mm (1.3 in)
1978
21.1 mm (0.8 in)
1979
49.3 mm (1.9 in)
1980
31.8 mm (1.3 in)
1981
38.9 mm (1.5 in)
1982
54.6 mm (2.1 in)
1983
21.6 mm (0.9 in)
1984
35.1 mm (1.4 in)
1985
34.0 mm (1.3 in)
1986
38.1 mm (1.5 in)
1987
39.6 mm (1.6 in)
1988
62.0 mm (2.4 in)
1989
35.1 mm (1.4 in)
1990
41.7 mm (1.6 in)
1991
43.2 mm (1.7 in)
1992
24.1 mm (0.9 in)
1993
75.2 mm (3.0 in)
1994
40.6 mm (1.6 in)
1995
33.0 mm (1.3 in)
1996
38.1 mm (1.5 in)
1997
53.3 mm (2.1 in)
1998
22.9 mm (0.9 in)
1999
41.9 mm (1.6 in)
2000
43.2 mm (1.7 in)
2001
34.3 mm (1.4 in)
2002
45.7 mm (1.8 in)
2003
47.2 mm (1.9 in)
2005
41.7 mm (1.6 in)
2006
27.2 mm (1.1 in)
2007
28.4 mm (1.1 in)
2008
19.6 mm (0.8 in)
2009
27.9 mm (1.1 in)
2010
38.1 mm (1.5 in)
2011
40.6 mm (1.6 in)
2012
34.8 mm (1.4 in)
2013
50.8 mm (2.0 in)
2014
25.1 mm (1.0 in)
2015
45.7 mm (1.8 in)
2016
30.0 mm (1.2 in)
2017
27.9 mm (1.1 in)
2018
22.1 mm (0.9 in)
2019
31.8 mm (1.3 in)
2020
20.3 mm (0.8 in)
2021
23.1 mm (0.9 in)
2022
22.4 mm (0.9 in)
2023
26.7 mm (1.1 in)
2024
25.7 mm (1.0 in)
2025
19.1 mm (0.8 in)
2026
8.9 mm (0.35 in)
Wettest five days (Rx5day)
The wettest five days of the year at Opheim 10 N, 1956 to 2026. The record is 103.1 mm (4.1 in) in 2002, marked on the chart; the median year is 47.6 mm (1.9 in).
Wettest five days (Rx5day) at Opheim 10 N by year
Year
Wettest five days (Rx5day)
1956
6.1 mm (0.24 in)
1957
35.1 mm (1.4 in)
1958
17.3 mm (0.7 in)
1959
43.5 mm (1.7 in)
1960
40.2 mm (1.6 in)
1961
32.5 mm (1.3 in)
1962
42.2 mm (1.7 in)
1963
85.9 mm (3.4 in)
1964
67.2 mm (2.6 in)
1965
43.7 mm (1.7 in)
1966
46.2 mm (1.8 in)
1967
52.6 mm (2.1 in)
1968
55.4 mm (2.2 in)
1969
77.3 mm (3.0 in)
1970
67.5 mm (2.7 in)
1971
30.5 mm (1.2 in)
1972
63.9 mm (2.5 in)
1973
45.6 mm (1.8 in)
1974
51.5 mm (2.0 in)
1975
60.8 mm (2.4 in)
1976
65.2 mm (2.6 in)
1977
53.3 mm (2.1 in)
1978
48.0 mm (1.9 in)
1979
69.1 mm (2.7 in)
1980
39.9 mm (1.6 in)
1981
44.2 mm (1.7 in)
1982
75.2 mm (3.0 in)
1983
31.5 mm (1.2 in)
1984
35.1 mm (1.4 in)
1985
44.1 mm (1.7 in)
1986
54.9 mm (2.2 in)
1987
55.9 mm (2.2 in)
1988
62.0 mm (2.4 in)
1989
39.9 mm (1.6 in)
1990
41.7 mm (1.6 in)
1991
78.5 mm (3.1 in)
1992
33.2 mm (1.3 in)
1993
99.1 mm (3.9 in)
1994
70.4 mm (2.8 in)
1995
57.2 mm (2.3 in)
1996
54.6 mm (2.1 in)
1997
55.8 mm (2.2 in)
1998
27.5 mm (1.1 in)
1999
43.3 mm (1.7 in)
2000
73.8 mm (2.9 in)
2001
57.9 mm (2.3 in)
2002
103.1 mm (4.1 in)
2003
73.4 mm (2.9 in)
2005
41.7 mm (1.6 in)
2006
38.6 mm (1.5 in)
2007
41.7 mm (1.6 in)
2008
71.1 mm (2.8 in)
2009
45.3 mm (1.8 in)
2010
44.9 mm (1.8 in)
2011
47.0 mm (1.9 in)
2012
53.0 mm (2.1 in)
2013
57.9 mm (2.3 in)
2014
50.6 mm (2.0 in)
2015
57.9 mm (2.3 in)
2016
60.7 mm (2.4 in)
2017
27.9 mm (1.1 in)
2018
26.9 mm (1.1 in)
2019
57.0 mm (2.2 in)
2020
38.9 mm (1.5 in)
2021
39.3 mm (1.5 in)
2022
40.7 mm (1.6 in)
2023
36.6 mm (1.4 in)
2024
47.1 mm (1.9 in)
2025
50.1 mm (2.0 in)
2026
10.2 mm (0.4 in)
Longest dry spell (CDD)
The longest dry spell of the year at Opheim 10 N, 1956 to 2026. The record is 120 days in 2010, marked on the chart; the median year is 42 days.
Longest dry spell (CDD) at Opheim 10 N by year
Year
Longest dry spell (CDD)
1956
21 days
1957
45 days
1958
36 days
1959
50 days
1960
79 days
1961
44 days
1962
77 days
1963
56 days
1964
31 days
1965
53 days
1966
48 days
1967
49 days
1968
42 days
1969
77 days
1970
31 days
1971
59 days
1972
30 days
1973
54 days
1974
37 days
1975
37 days
1976
40 days
1977
64 days
1978
36 days
1979
36 days
1980
51 days
1981
42 days
1982
44 days
1983
44 days
1984
59 days
1985
41 days
1986
31 days
1987
55 days
1988
47 days
1989
29 days
1990
42 days
1991
27 days
1992
42 days
1993
30 days
1994
36 days
1995
32 days
1996
42 days
1997
53 days
1998
27 days
1999
49 days
2000
31 days
2001
56 days
2002
47 days
2003
19 days
2005
22 days
2006
35 days
2007
44 days
2008
20 days
2009
43 days
2010
120 days
2011
23 days
2012
55 days
2013
29 days
2014
34 days
2015
20 days
2016
20 days
2017
31 days
2018
29 days
2019
26 days
2020
42 days
2021
58 days
2022
35 days
2023
45 days
2024
30 days
2025
34 days
2026
58 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
46 years with a frost
Across 46 years with a frost, the median last spring frost at Opheim 10 N falls on 1 June and the median first autumn frost on 4 September, which leaves a median of 92 days between them.
Fitted over all years, the growing season changes by +4.4 days per decade at this station.
Frost dates and growing season at Opheim 10 N
Measure
Median, all years
Earliest period
Recent period (1981 to 2025)
Recent against earliest
Fitted trend
Last spring frost
1 June
n/a
30 May
n/a
-1.7 days per decade
First autumn frost
4 September
n/a
6 September
n/a
+2.7 days per decade
Growing days
92 days
n/a
99 days
n/a
+4.4 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
57 years, 1957 to 2025
A day with at least 33.1 mm (1.3 in) of rain is expected about once in 2 years. A day with at least 69.7 mm (2.7 in) of rain is expected about once in 100 years.
Rainfall return levels at Opheim 10 N: the daily rain expected about once in a given number of years
Expected about once in
A day with at least
Note
2 years
33.1 mm (1.3 in)
5 years
43.8 mm (1.7 in)
10 years
50.5 mm (2.0 in)
25 years
58.5 mm (2.3 in)
50 years
64.2 mm (2.5 in)
100 years
69.7 mm (2.7 in)
Longer than the 57 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, 57 years of values from 1957 to 2025.
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: 75.2 mm (3.0 in) in 1993; 62.0 mm (2.4 in) in 1988; 54.6 mm (2.1 in) in 1963.
Station Changes
No change in the annual mean temperature of this station was found against its neighbours.
Download the Data
Data for Opheim 10 N standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Opheim 10 N 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.