Record envelope, standing records and threshold days for Leadore #2 (USC00105177), Idaho, United States, with 62 years of record.
Key Facts for Leadore #2
Leadore #2 (USC00105177) is a weather station in Idaho, United States at 44.68 latitude and -113.36 longitude, 1,829 m (6,000 ft) above sea level.
The station reports from 1965 to 2026, 62 years of record.
1,464 records set at Leadore #2 still stand.
Records are tracked for tmax, tmin, prcp, snow, snwd: an element needs 30 years of data to be eligible.
Leadore #2 set a monthly record daily precipitation of 19.3 mm (0.8 in) on 28 August 2025.
About the Station
Location: Idaho, United States, 44.68 latitude, -113.36 longitude.
Elevation: 1,829 m (6,000 ft).
Period of record: 1965 to 2026, 62 years.
Eligible elements: tmax, tmin, prcp, snow, snwd.
Daily Record Envelope and 2026
13 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 Leadore #2. The lines show the 2026 daily maximum and minimum. 13 days in 2026 matched or passed a record. Temperatures are in degrees Celsius.
Daily record high and record low at Leadore #2, with 2026 drawn through them
Month
Highest record high
Lowest record low
2026 highest maximum
2026 lowest minimum
Jan
11.7 C (53.1 F)
-38.9 C (-38.0 F)
3.9 C (39.0 F)
-27.8 C (-18.0 F)
Feb
15.0 C (59.0 F)
-38.9 C (-38.0 F)
10.0 C (50.0 F)
-27.2 C (-17.0 F)
Mar
20.6 C (69.1 F)
-29.4 C (-20.9 F)
19.4 C (66.9 F)
-15.6 C (3.9 F)
Apr
25.0 C (77.0 F)
-22.2 C (-8.0 F)
20.0 C (68.0 F)
-10.6 C (12.9 F)
May
32.8 C (91.0 F)
-15.6 C (3.9 F)
n/a
n/a
Jun
36.1 C (97.0 F)
-7.2 C (19.0 F)
31.1 C (88.0 F)
-1.7 C (28.9 F)
Jul
38.9 C (102.0 F)
-6.7 C (19.9 F)
32.2 C (90.0 F)
1.7 C (35.1 F)
Aug
37.2 C (99.0 F)
-7.2 C (19.0 F)
32.8 C (91.0 F)
-2.8 C (27.0 F)
Sep
33.9 C (93.0 F)
-12.2 C (10.0 F)
n/a
n/a
Oct
28.9 C (84.0 F)
-25.6 C (-14.1 F)
n/a
n/a
Nov
20.6 C (69.1 F)
-30.0 C (-22.0 F)
n/a
n/a
Dec
15.6 C (60.1 F)
-40.0 C (-40.0 F)
n/a
n/a
Which Years Hold Standing Records
1,464 standing records
Year with most
1,464 records at Leadore #2 still stand. 2003 holds the most, with 53.
Standing records at Leadore #2 by the year they were set
Year set
Standing records
1965
10
1966
47
1967
32
1968
38
1969
50
1970
28
1971
44
1972
35
1973
33
1974
33
1975
28
1976
17
1977
27
1978
18
1979
26
1980
33
1981
30
1982
27
1983
30
1984
18
1988
43
1989
10
1996
12
1997
11
1998
8
1999
18
2000
22
2001
26
2002
24
2003
53
2004
19
2005
22
2006
40
2007
27
2008
32
2009
35
2010
32
2011
12
2012
28
2013
28
2014
42
2015
41
2016
33
2017
40
2018
13
2019
19
2020
31
2021
34
2022
34
2023
34
2024
21
2025
16
Wettest Day of Each Month
Apr: 50.8 mm (2.0 in)
The wettest day on record for each calendar month at Leadore #2. The most was 50.8 mm (2.0 in) on 9 April 2001.
Record daily precipitation for each month at Leadore #2
Month
Record daily precipitation (mm)
Date
Jan
17.8 mm (0.7 in)
30 January 2014
Feb
25.7 mm (1.0 in)
12 February 2012
Mar
19.8 mm (0.8 in)
22 March 1999
Apr
50.8 mm (2.0 in)
9 April 2001
May
20.1 mm (0.8 in)
18 May 2004
Jun
39.4 mm (1.6 in)
19 June 2018
Jul
36.1 mm (1.4 in)
21 July 1977
Aug
19.3 mm (0.8 in)
28 August 2025
Sep
44.7 mm (1.8 in)
21 September 1968
Oct
24.6 mm (1.0 in)
29 October 2004
Nov
25.4 mm (1.0 in)
30 November 1970
Dec
25.4 mm (1.0 in)
3 December 2010
Period of Record Coverage
1965 to 2025
Complete yearUnder 90 percent of days
52 years of record at Leadore #2, 1965 to 2025. 24 years have data for under 90 percent of days and are left out of rankings: 1965, 1971, 1972, 1973, 1974, 1976, 1977, 1978 and others.
Cooler than the station meanWarmer than the station mean
One stripe for each of 29 complete years at Leadore #2, 1966 to 2024. Blue stripes are years cooler than the station's own mean of 4.0 C (39.1 F); red stripes are warmer. The coolest year was 2008, at 2.6 C (36.7 F), and the warmest was 1983, at 4.9 C (40.8 F). The strongest colour marks a difference of 1.4 C (2.5 F).
Annual mean temperature at Leadore #2 as warming stripes, 1966 to 2024
Year
Annual mean temperature
Difference from the station mean
1966
4.3 C
+0.37 C
1967
3.7 C
-0.26 C
1968
3.2 C
-0.80 C
1969
3.7 C
-0.28 C
1970
3.6 C
-0.39 C
1971
3.1 C
-0.87 C
1974
4.5 C
+0.53 C
1975
3.6 C
-0.38 C
1977
4.5 C
+0.50 C
1983
4.9 C
+0.92 C
2003
4.4 C
+0.48 C
2004
4.1 C
+0.15 C
2005
3.9 C
-0.07 C
2006
4.3 C
+0.30 C
2007
4.3 C
+0.35 C
2008
2.6 C
-1.37 C
2009
3.5 C
-0.43 C
2010
4.2 C
+0.19 C
2011
3.1 C
-0.91 C
2012
4.8 C
+0.85 C
2014
4.5 C
+0.51 C
2016
4.8 C
+0.80 C
2018
4.2 C
+0.21 C
2019
3.4 C
-0.58 C
2020
3.6 C
-0.34 C
2021
4.7 C
+0.73 C
2022
3.4 C
-0.59 C
2023
3.5 C
-0.50 C
2024
4.9 C
+0.91 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
1965 to 2026
Yearly extremes at Leadore #2: 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)
1981
33.9 C (93.0 F)
52
Coldest night (TNn)
-40.0 C (-40.0 F)
1983
-30.6 C (-23.1 F)
52
Wettest day (Rx1day)
50.8 mm (2.0 in)
2001
18.5 mm (0.7 in)
53
Wettest five days (Rx5day)
70.7 mm (2.8 in)
1977
23.7 mm (0.9 in)
52
Longest dry spell (CDD)
90 days
1966
30 days
53
Hottest day (TXx)
The hottest day of the year at Leadore #2, 1965 to 2026. The record is 38.9 C (102.0 F) in 1981, marked on the chart; the median year is 33.9 C (93.0 F).
Hottest day (TXx) at Leadore #2 by year
Year
Hottest day (TXx)
1965
26.7 C (80.1 F)
1966
35.0 C (95.0 F)
1967
34.4 C (93.9 F)
1968
33.3 C (91.9 F)
1969
37.2 C (99.0 F)
1970
33.9 C (93.0 F)
1971
33.3 C (91.9 F)
1972
34.4 C (93.9 F)
1973
36.1 C (97.0 F)
1974
33.9 C (93.0 F)
1975
33.9 C (93.0 F)
1976
35.6 C (96.1 F)
1977
32.8 C (91.0 F)
1978
33.3 C (91.9 F)
1979
34.4 C (93.9 F)
1980
34.4 C (93.9 F)
1981
38.9 C (102.0 F)
1982
38.9 C (102.0 F)
1983
35.0 C (95.0 F)
1984
32.2 C (90.0 F)
1988
36.1 C (97.0 F)
1989
16.1 C (61.0 F)
1996
34.4 C (93.9 F)
1997
33.3 C (91.9 F)
1998
35.0 C (95.0 F)
1999
33.3 C (91.9 F)
2000
34.4 C (93.9 F)
2001
33.9 C (93.0 F)
2002
36.7 C (98.1 F)
2003
36.7 C (98.1 F)
2004
33.9 C (93.0 F)
2005
34.4 C (93.9 F)
2006
36.7 C (98.1 F)
2007
34.4 C (93.9 F)
2008
33.3 C (91.9 F)
2009
33.9 C (93.0 F)
2010
33.9 C (93.0 F)
2011
32.8 C (91.0 F)
2012
33.9 C (93.0 F)
2013
35.0 C (95.0 F)
2014
32.8 C (91.0 F)
2015
34.4 C (93.9 F)
2016
33.9 C (93.0 F)
2017
33.9 C (93.0 F)
2018
35.0 C (95.0 F)
2019
32.2 C (90.0 F)
2020
33.9 C (93.0 F)
2021
33.9 C (93.0 F)
2022
33.9 C (93.0 F)
2023
34.4 C (93.9 F)
2024
35.0 C (95.0 F)
2025
32.8 C (91.0 F)
2026
n/a
Coldest night (TNn)
The coldest night of the year at Leadore #2, 1965 to 2026. The record is -40.0 C (-40.0 F) in 1983, marked on the chart; the median year is -30.6 C (-23.1 F).
Coldest night (TNn) at Leadore #2 by year
Year
Coldest night (TNn)
1965
-23.3 C (-9.9 F)
1966
-28.9 C (-20.0 F)
1967
-32.8 C (-27.0 F)
1968
-32.8 C (-27.0 F)
1969
-27.2 C (-17.0 F)
1970
-33.9 C (-29.0 F)
1971
-35.0 C (-31.0 F)
1972
-38.9 C (-38.0 F)
1973
-36.1 C (-33.0 F)
1974
-32.8 C (-27.0 F)
1975
-30.0 C (-22.0 F)
1976
-28.3 C (-18.9 F)
1977
-30.0 C (-22.0 F)
1978
-20.0 C (-4.0 F)
1979
-38.9 C (-38.0 F)
1980
-35.6 C (-32.1 F)
1981
-30.6 C (-23.1 F)
1982
-36.7 C (-34.1 F)
1983
-40.0 C (-40.0 F)
1984
-32.8 C (-27.0 F)
1988
-27.8 C (-18.0 F)
1989
-38.9 C (-38.0 F)
1996
-26.7 C (-16.1 F)
1997
-28.3 C (-18.9 F)
1998
-25.0 C (-13.0 F)
1999
-23.9 C (-11.0 F)
2000
-23.9 C (-11.0 F)
2001
-27.2 C (-17.0 F)
2002
-27.2 C (-17.0 F)
2003
-33.3 C (-27.9 F)
2004
-32.8 C (-27.0 F)
2005
-30.6 C (-23.1 F)
2006
-32.8 C (-27.0 F)
2007
-35.0 C (-31.0 F)
2008
-33.3 C (-27.9 F)
2009
-30.6 C (-23.1 F)
2010
-30.0 C (-22.0 F)
2011
-30.6 C (-23.1 F)
2012
-26.7 C (-16.1 F)
2013
-33.9 C (-29.0 F)
2014
-36.7 C (-34.1 F)
2015
-27.2 C (-17.0 F)
2016
-33.3 C (-27.9 F)
2017
-33.9 C (-29.0 F)
2018
-27.8 C (-18.0 F)
2019
-30.0 C (-22.0 F)
2020
-26.7 C (-16.1 F)
2021
-24.4 C (-11.9 F)
2022
-33.3 C (-27.9 F)
2023
-36.1 C (-33.0 F)
2024
-36.1 C (-33.0 F)
2025
-27.8 C (-18.0 F)
2026
n/a
Wettest day (Rx1day)
The wettest day of the year at Leadore #2, 1965 to 2026. The record is 50.8 mm (2.0 in) in 2001, marked on the chart; the median year is 18.5 mm (0.7 in).
Wettest day (Rx1day) at Leadore #2 by year
Year
Wettest day (Rx1day)
1965
3.8 mm (0.15 in)
1966
17.3 mm (0.7 in)
1967
16.0 mm (0.6 in)
1968
44.7 mm (1.8 in)
1969
25.9 mm (1.0 in)
1970
25.4 mm (1.0 in)
1971
19.6 mm (0.8 in)
1972
13.5 mm (0.5 in)
1973
14.0 mm (0.6 in)
1974
14.5 mm (0.6 in)
1975
18.5 mm (0.7 in)
1976
24.4 mm (1.0 in)
1977
36.1 mm (1.4 in)
1978
20.3 mm (0.8 in)
1979
30.5 mm (1.2 in)
1980
15.7 mm (0.6 in)
1981
12.7 mm (0.5 in)
1982
32.5 mm (1.3 in)
1983
31.5 mm (1.2 in)
1984
12.7 mm (0.5 in)
1988
12.7 mm (0.5 in)
1989
10.2 mm (0.4 in)
1996
4.3 mm (0.17 in)
1997
14.5 mm (0.6 in)
1998
30.2 mm (1.2 in)
1999
25.4 mm (1.0 in)
2000
7.6 mm (0.30 in)
2001
50.8 mm (2.0 in)
2002
15.2 mm (0.6 in)
2003
16.8 mm (0.7 in)
2004
24.6 mm (1.0 in)
2005
20.1 mm (0.8 in)
2006
13.7 mm (0.5 in)
2007
31.8 mm (1.3 in)
2008
13.0 mm (0.5 in)
2009
17.0 mm (0.7 in)
2010
25.4 mm (1.0 in)
2011
20.6 mm (0.8 in)
2012
25.7 mm (1.0 in)
2013
19.6 mm (0.8 in)
2014
17.8 mm (0.7 in)
2015
18.5 mm (0.7 in)
2016
10.4 mm (0.4 in)
2017
27.9 mm (1.1 in)
2018
39.4 mm (1.6 in)
2019
8.1 mm (0.32 in)
2020
20.8 mm (0.8 in)
2021
12.7 mm (0.5 in)
2022
16.0 mm (0.6 in)
2023
21.3 mm (0.8 in)
2024
6.6 mm (0.26 in)
2025
19.3 mm (0.8 in)
2026
0.0 mm (0.00 in)
Wettest five days (Rx5day)
The wettest five days of the year at Leadore #2, 1965 to 2026. The record is 70.7 mm (2.8 in) in 1977, marked on the chart; the median year is 23.7 mm (0.9 in).
Wettest five days (Rx5day) at Leadore #2 by year
Year
Wettest five days (Rx5day)
1965
3.8 mm (0.15 in)
1966
22.6 mm (0.9 in)
1967
27.9 mm (1.1 in)
1968
48.5 mm (1.9 in)
1969
25.9 mm (1.0 in)
1970
25.4 mm (1.0 in)
1971
21.9 mm (0.9 in)
1972
24.7 mm (1.0 in)
1973
28.7 mm (1.1 in)
1974
20.3 mm (0.8 in)
1975
30.5 mm (1.2 in)
1976
25.4 mm (1.0 in)
1977
70.7 mm (2.8 in)
1978
30.6 mm (1.2 in)
1979
30.5 mm (1.2 in)
1980
36.6 mm (1.4 in)
1981
25.4 mm (1.0 in)
1982
55.4 mm (2.2 in)
1983
46.2 mm (1.8 in)
1984
12.7 mm (0.5 in)
1988
17.5 mm (0.7 in)
1989
14.3 mm (0.6 in)
1996
4.3 mm (0.17 in)
1997
20.8 mm (0.8 in)
1998
34.8 mm (1.4 in)
1999
22.3 mm (0.9 in)
2000
12.5 mm (0.5 in)
2001
34.3 mm (1.4 in)
2002
22.3 mm (0.9 in)
2003
20.1 mm (0.8 in)
2004
32.3 mm (1.3 in)
2005
31.8 mm (1.3 in)
2006
25.1 mm (1.0 in)
2007
37.8 mm (1.5 in)
2008
13.5 mm (0.5 in)
2009
21.1 mm (0.8 in)
2010
29.0 mm (1.1 in)
2011
25.4 mm (1.0 in)
2012
27.2 mm (1.1 in)
2013
16.0 mm (0.6 in)
2014
18.6 mm (0.7 in)
2015
21.0 mm (0.8 in)
2016
13.5 mm (0.5 in)
2017
28.9 mm (1.1 in)
2018
5.3 mm (0.21 in)
2019
8.9 mm (0.35 in)
2020
21.6 mm (0.9 in)
2021
10.2 mm (0.4 in)
2022
16.0 mm (0.6 in)
2023
16.8 mm (0.7 in)
2024
5.9 mm (0.23 in)
2025
31.0 mm (1.2 in)
2026
n/a
Longest dry spell (CDD)
The longest dry spell of the year at Leadore #2, 1965 to 2026. The record is 90 days in 1966, marked on the chart; the median year is 30 days.
Longest dry spell (CDD) at Leadore #2 by year
Year
Longest dry spell (CDD)
1965
41 days
1966
90 days
1967
27 days
1968
39 days
1969
43 days
1970
44 days
1971
39 days
1972
47 days
1973
33 days
1974
61 days
1975
68 days
1976
59 days
1977
60 days
1978
43 days
1979
36 days
1980
41 days
1981
56 days
1982
32 days
1983
24 days
1984
20 days
1988
37 days
1989
12 days
1996
29 days
1997
28 days
1998
44 days
1999
50 days
2000
45 days
2001
45 days
2002
38 days
2003
24 days
2004
34 days
2005
43 days
2006
29 days
2007
18 days
2008
30 days
2009
15 days
2010
18 days
2011
12 days
2012
6 days
2013
5 days
2014
5 days
2015
8 days
2016
12 days
2017
5 days
2018
5 days
2019
5 days
2020
5 days
2021
19 days
2022
5 days
2023
10 days
2024
12 days
2025
42 days
2026
3 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 Leadore #2 falls on 23 June and the median first autumn frost on 9 July, which leaves a median of 21 days between them.
Fitted over all years, the growing season changes by +4.8 days per decade at this station.
Frost dates and growing season at Leadore #2
Measure
Median, all years
Earliest period
Recent period (1966 to 2024)
Recent against earliest
Fitted trend
Last spring frost
23 June
n/a
23 June
n/a
-0.8 days per decade
First autumn frost
9 July
n/a
9 July
n/a
+4.0 days per decade
Growing days
21 days
n/a
21 days
n/a
+4.8 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 Leadore #2 standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Leadore #2 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.