Record envelope, standing records and threshold days for Ovando 9 SSE (USC00246304), Montana, United States, with 36 years of record.
Key Facts for Ovando 9 SSE
Ovando 9 SSE (USC00246304) is a weather station in Montana, United States at 46.88 latitude and -113.06 longitude, 1,318 m (4,325 ft) above sea level.
The station reports from 1976 to 2011, 36 years of record.
1,464 records set at Ovando 9 SSE still stand.
Records are tracked for tmax, tmin, prcp, snow, snwd: an element needs 30 years of data to be eligible.
Ovando 9 SSE set a daily record low maximum temperature of -13.9 C (7.0 F) on 26 February 2011.
About the Station
Location: Montana, United States, 46.88 latitude, -113.06 longitude.
Elevation: 1,318 m (4,325 ft).
Period of record: 1976 to 2011, 36 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 Ovando 9 SSE. 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 Ovando 9 SSE, with 2026 drawn through them
Month
Highest record high
Lowest record low
2026 highest maximum
2026 lowest minimum
Jan
12.8 C (55.0 F)
-41.7 C (-43.1 F)
n/a
n/a
Feb
17.2 C (63.0 F)
-44.4 C (-47.9 F)
n/a
n/a
Mar
24.4 C (75.9 F)
-31.1 C (-24.0 F)
n/a
n/a
Apr
28.3 C (82.9 F)
-19.4 C (-2.9 F)
n/a
n/a
May
33.9 C (93.0 F)
-10.0 C (14.0 F)
n/a
n/a
Jun
35.0 C (95.0 F)
-6.7 C (19.9 F)
n/a
n/a
Jul
37.2 C (99.0 F)
-2.2 C (28.0 F)
n/a
n/a
Aug
36.7 C (98.1 F)
-6.1 C (21.0 F)
n/a
n/a
Sep
33.9 C (93.0 F)
-12.8 C (9.0 F)
n/a
n/a
Oct
31.1 C (88.0 F)
-25.0 C (-13.0 F)
n/a
n/a
Nov
22.2 C (72.0 F)
-30.6 C (-23.1 F)
n/a
n/a
Dec
14.4 C (57.9 F)
-42.8 C (-45.0 F)
n/a
n/a
Which Years Hold Standing Records
1,464 standing records
Year with most
1,464 records at Ovando 9 SSE still stand. 1984 holds the most, with 69.
Standing records at Ovando 9 SSE by the year they were set
Year set
Standing records
1976
10
1977
45
1978
40
1979
54
1980
54
1981
45
1982
40
1983
40
1984
69
1985
53
1986
66
1987
61
1988
41
1989
53
1990
51
1991
30
1992
46
1993
41
1994
38
1995
42
1996
47
1997
45
1998
28
1999
36
2000
30
2001
33
2002
57
2003
33
2004
29
2005
41
2006
30
2007
26
2008
41
2009
47
2010
13
2011
9
Wettest Day of Each Month
Jun: 53.3 mm (2.1 in)
The wettest day on record for each calendar month at Ovando 9 SSE. The most was 53.3 mm (2.1 in) on 3 June 2001.
Record daily precipitation for each month at Ovando 9 SSE
Month
Record daily precipitation (mm)
Date
Jan
21.6 mm (0.9 in)
1 January 1999
Feb
12.7 mm (0.5 in)
15 February 1986
Mar
16.8 mm (0.7 in)
10 March 1997
Apr
31.8 mm (1.3 in)
10 April 1996
May
34.5 mm (1.4 in)
31 May 1988
Jun
53.3 mm (2.1 in)
3 June 2001
Jul
40.6 mm (1.6 in)
10 July 1983
Aug
32.0 mm (1.3 in)
31 August 2008
Sep
38.1 mm (1.5 in)
9 September 1986
Oct
20.8 mm (0.8 in)
31 October 2005
Nov
29.5 mm (1.2 in)
12 November 2008
Dec
19.1 mm (0.8 in)
2 December 1977
Period of Record Coverage
1976 to 2011
Complete yearUnder 90 percent of days
36 years of record at Ovando 9 SSE, 1976 to 2011. 5 years have data for under 90 percent of days and are left out of rankings: 1976, 1991, 2002, 2010, 2011.
Cooler than the station meanWarmer than the station mean
One stripe for each of 27 complete years at Ovando 9 SSE, 1977 to 2009. Blue stripes are years cooler than the station's own mean of 3.8 C (38.8 F); red stripes are warmer. The coolest year was 1985, at 2.2 C (36.0 F), and the warmest was 1998, at 4.8 C (40.7 F). The strongest colour marks a difference of 1.6 C (2.9 F).
Annual mean temperature at Ovando 9 SSE as warming stripes, 1977 to 2009
Year
Annual mean temperature
Difference from the station mean
1977
3.7 C
-0.08 C
1978
2.9 C
-0.81 C
1979
2.9 C
-0.81 C
1980
3.8 C
+0.02 C
1981
4.7 C
+0.94 C
1982
2.5 C
-1.30 C
1983
3.5 C
-0.24 C
1984
3.7 C
-0.03 C
1985
2.2 C
-1.54 C
1986
4.3 C
+0.56 C
1987
4.2 C
+0.49 C
1988
4.7 C
+0.99 C
1989
3.6 C
-0.14 C
1990
4.6 C
+0.88 C
1992
4.5 C
+0.70 C
1993
2.6 C
-1.16 C
1995
3.9 C
+0.15 C
1996
3.1 C
-0.62 C
1997
3.7 C
-0.02 C
1998
4.8 C
+1.09 C
1999
4.1 C
+0.38 C
2001
4.0 C
+0.24 C
2004
4.5 C
+0.71 C
2005
3.8 C
+0.08 C
2006
4.3 C
+0.51 C
2008
3.3 C
-0.41 C
2009
3.3 C
-0.46 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
1976 to 2011
Yearly extremes at Ovando 9 SSE: the record and the median year
Measure
Record
Year of the record
Median year
Years with a value
Hottest day (TXx)
37.2 C (99.0 F)
2003
34.7 C (94.5 F)
36
Coldest night (TNn)
-44.4 C (-47.9 F)
1982
-32.8 C (-27.0 F)
36
Wettest day (Rx1day)
53.3 mm (2.1 in)
2001
21.9 mm (0.9 in)
36
Wettest five days (Rx5day)
76.8 mm (3.0 in)
1980
37.5 mm (1.5 in)
36
Longest dry spell (CDD)
61 days
1985
31 days
36
Hottest day (TXx)
The hottest day of the year at Ovando 9 SSE, 1976 to 2011. The record is 37.2 C (99.0 F) in 2003, marked on the chart; the median year is 34.7 C (94.5 F).
Hottest day (TXx) at Ovando 9 SSE by year
Year
Hottest day (TXx)
1976
33.3 C (91.9 F)
1977
34.4 C (93.9 F)
1978
33.9 C (93.0 F)
1979
35.0 C (95.0 F)
1980
31.7 C (89.1 F)
1981
36.1 C (97.0 F)
1982
31.7 C (89.1 F)
1983
36.1 C (97.0 F)
1984
33.9 C (93.0 F)
1985
35.0 C (95.0 F)
1986
35.0 C (95.0 F)
1987
35.6 C (96.1 F)
1988
35.0 C (95.0 F)
1989
34.4 C (93.9 F)
1990
35.6 C (96.1 F)
1991
35.6 C (96.1 F)
1992
34.4 C (93.9 F)
1993
31.7 C (89.1 F)
1994
35.0 C (95.0 F)
1995
33.3 C (91.9 F)
1996
33.9 C (93.0 F)
1997
32.8 C (91.0 F)
1998
34.4 C (93.9 F)
1999
34.4 C (93.9 F)
2000
36.7 C (98.1 F)
2001
33.9 C (93.0 F)
2002
35.6 C (96.1 F)
2003
37.2 C (99.0 F)
2004
36.1 C (97.0 F)
2005
33.9 C (93.0 F)
2006
35.0 C (95.0 F)
2007
36.7 C (98.1 F)
2008
35.0 C (95.0 F)
2009
35.6 C (96.1 F)
2010
34.4 C (93.9 F)
2011
11.7 C (53.1 F)
Coldest night (TNn)
The coldest night of the year at Ovando 9 SSE, 1976 to 2011. The record is -44.4 C (-47.9 F) in 1982, marked on the chart; the median year is -32.8 C (-27.0 F).
Coldest night (TNn) at Ovando 9 SSE by year
Year
Coldest night (TNn)
1976
-27.8 C (-18.0 F)
1977
-33.9 C (-29.0 F)
1978
-40.0 C (-40.0 F)
1979
-41.7 C (-43.1 F)
1980
-36.1 C (-33.0 F)
1981
-40.0 C (-40.0 F)
1982
-44.4 C (-47.9 F)
1983
-42.8 C (-45.0 F)
1984
-31.7 C (-25.1 F)
1985
-34.4 C (-29.9 F)
1986
-31.1 C (-24.0 F)
1987
-30.0 C (-22.0 F)
1988
-30.6 C (-23.1 F)
1989
-37.8 C (-36.0 F)
1990
-41.1 C (-42.0 F)
1991
-33.3 C (-27.9 F)
1992
-27.2 C (-17.0 F)
1993
-35.6 C (-32.1 F)
1994
-31.7 C (-25.1 F)
1995
-30.6 C (-23.1 F)
1996
-41.1 C (-42.0 F)
1997
-37.8 C (-36.0 F)
1998
-32.8 C (-27.0 F)
1999
-22.8 C (-9.0 F)
2000
-30.6 C (-23.1 F)
2001
-30.0 C (-22.0 F)
2002
-27.8 C (-18.0 F)
2003
-30.6 C (-23.1 F)
2004
-38.9 C (-38.0 F)
2005
-34.4 C (-29.9 F)
2006
-31.7 C (-25.1 F)
2007
-31.1 C (-24.0 F)
2008
-32.2 C (-26.0 F)
2009
-32.8 C (-27.0 F)
2010
-33.9 C (-29.0 F)
2011
-32.2 C (-26.0 F)
Wettest day (Rx1day)
The wettest day of the year at Ovando 9 SSE, 1976 to 2011. The record is 53.3 mm (2.1 in) in 2001, marked on the chart; the median year is 21.9 mm (0.9 in).
Wettest day (Rx1day) at Ovando 9 SSE by year
Year
Wettest day (Rx1day)
1976
9.9 mm (0.39 in)
1977
19.1 mm (0.8 in)
1978
24.1 mm (0.9 in)
1979
16.8 mm (0.7 in)
1980
21.3 mm (0.8 in)
1981
14.0 mm (0.6 in)
1982
19.1 mm (0.8 in)
1983
40.6 mm (1.6 in)
1984
36.6 mm (1.4 in)
1985
26.2 mm (1.0 in)
1986
38.1 mm (1.5 in)
1987
21.6 mm (0.9 in)
1988
34.5 mm (1.4 in)
1989
27.9 mm (1.1 in)
1990
31.8 mm (1.3 in)
1991
18.3 mm (0.7 in)
1992
17.0 mm (0.7 in)
1993
18.5 mm (0.7 in)
1994
13.2 mm (0.5 in)
1995
22.4 mm (0.9 in)
1996
31.8 mm (1.3 in)
1997
19.6 mm (0.8 in)
1998
31.8 mm (1.3 in)
1999
22.1 mm (0.9 in)
2000
18.3 mm (0.7 in)
2001
53.3 mm (2.1 in)
2002
16.5 mm (0.6 in)
2003
23.4 mm (0.9 in)
2004
17.0 mm (0.7 in)
2005
20.8 mm (0.8 in)
2006
23.4 mm (0.9 in)
2007
22.9 mm (0.9 in)
2008
32.0 mm (1.3 in)
2009
27.9 mm (1.1 in)
2010
20.8 mm (0.8 in)
2011
10.9 mm (0.4 in)
Wettest five days (Rx5day)
The wettest five days of the year at Ovando 9 SSE, 1976 to 2011. The record is 76.8 mm (3.0 in) in 1980, marked on the chart; the median year is 37.5 mm (1.5 in).
Wettest five days (Rx5day) at Ovando 9 SSE by year
Year
Wettest five days (Rx5day)
1976
11.5 mm (0.5 in)
1977
33.6 mm (1.3 in)
1978
40.1 mm (1.6 in)
1979
22.6 mm (0.9 in)
1980
76.8 mm (3.0 in)
1981
30.0 mm (1.2 in)
1982
28.5 mm (1.1 in)
1983
47.2 mm (1.9 in)
1984
42.2 mm (1.7 in)
1985
37.7 mm (1.5 in)
1986
43.7 mm (1.7 in)
1987
47.5 mm (1.9 in)
1988
37.0 mm (1.5 in)
1989
40.9 mm (1.6 in)
1990
43.0 mm (1.7 in)
1991
37.3 mm (1.5 in)
1992
32.5 mm (1.3 in)
1993
34.8 mm (1.4 in)
1994
46.4 mm (1.8 in)
1995
43.0 mm (1.7 in)
1996
46.1 mm (1.8 in)
1997
42.4 mm (1.7 in)
1998
42.3 mm (1.7 in)
1999
39.9 mm (1.6 in)
2000
27.5 mm (1.1 in)
2001
57.1 mm (2.2 in)
2002
33.8 mm (1.3 in)
2003
27.0 mm (1.1 in)
2004
30.7 mm (1.2 in)
2005
27.1 mm (1.1 in)
2006
35.8 mm (1.4 in)
2007
38.9 mm (1.5 in)
2008
42.3 mm (1.7 in)
2009
34.1 mm (1.3 in)
2010
31.3 mm (1.2 in)
2011
19.7 mm (0.8 in)
Longest dry spell (CDD)
The longest dry spell of the year at Ovando 9 SSE, 1976 to 2011. The record is 61 days in 1985, marked on the chart; the median year is 31 days.
Longest dry spell (CDD) at Ovando 9 SSE by year
Year
Longest dry spell (CDD)
1976
21 days
1977
41 days
1978
31 days
1979
47 days
1980
21 days
1981
25 days
1982
26 days
1983
21 days
1984
28 days
1985
61 days
1986
51 days
1987
35 days
1988
38 days
1989
13 days
1990
27 days
1991
31 days
1992
28 days
1993
24 days
1994
29 days
1995
16 days
1996
28 days
1997
21 days
1998
33 days
1999
28 days
2000
54 days
2001
35 days
2002
47 days
2003
42 days
2004
36 days
2005
33 days
2006
38 days
2007
31 days
2008
30 days
2009
29 days
2010
43 days
2011
12 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
27 years with a frost
Across 27 years with a frost, the median last spring frost at Ovando 9 SSE falls on 21 June and the median first autumn frost on 11 July, which leaves a median of 26 days between them.
Fitted over all years, the growing season changes by +3.8 days per decade at this station.
Frost dates and growing season at Ovando 9 SSE
Measure
Median, all years
Earliest period
Recent period (1977 to 2009)
Recent against earliest
Fitted trend
Last spring frost
21 June
n/a
21 June
n/a
-0.6 days per decade
First autumn frost
11 July
n/a
11 July
n/a
+3.2 days per decade
Growing days
26 days
n/a
26 days
n/a
+3.8 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.
Download the Data
Data for Ovando 9 SSE standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Ovando 9 SSE 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.