Record envelope, standing records and threshold days for Slide Mtn (USC00307799), New York, United States, with 65 years of record.
Key Facts for Slide Mtn
Slide Mtn (USC00307799) is a weather station in New York, United States at 42.02 latitude and -74.42 longitude, 808 m (2,650 ft) above sea level.
The station reports from 1948 to 2012, 65 years of record.
1,464 records set at Slide Mtn still stand.
Records are tracked for tmax, tmin, prcp, snow, snwd: an element needs 30 years of data to be eligible.
Slide Mtn set a daily record precipitation of 37.3 mm (1.5 in) on 19 October 2012.
About the Station
Location: New York, United States, 42.02 latitude, -74.42 longitude.
Elevation: 808 m (2,650 ft).
Period of record: 1948 to 2012, 65 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 Slide Mtn. 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 Slide Mtn, with 2026 drawn through them
Month
Highest record high
Lowest record low
2026 highest maximum
2026 lowest minimum
Jan
13.9 C (57.0 F)
-30.6 C (-23.1 F)
n/a
n/a
Feb
14.4 C (57.9 F)
-30.6 C (-23.1 F)
n/a
n/a
Mar
24.4 C (75.9 F)
-27.2 C (-17.0 F)
n/a
n/a
Apr
29.4 C (84.9 F)
-16.7 C (1.9 F)
n/a
n/a
May
30.6 C (87.1 F)
-8.9 C (16.0 F)
n/a
n/a
Jun
30.0 C (86.0 F)
-1.7 C (28.9 F)
n/a
n/a
Jul
32.2 C (90.0 F)
1.7 C (35.1 F)
n/a
n/a
Aug
32.8 C (91.0 F)
-2.2 C (28.0 F)
n/a
n/a
Sep
28.9 C (84.0 F)
-6.1 C (21.0 F)
n/a
n/a
Oct
26.7 C (80.1 F)
-10.0 C (14.0 F)
n/a
n/a
Nov
22.2 C (72.0 F)
-17.8 C (0.0 F)
n/a
n/a
Dec
16.1 C (61.0 F)
-30.0 C (-22.0 F)
n/a
n/a
Which Years Hold Standing Records
1,464 standing records
Year with most
1,464 records at Slide Mtn still stand. 1963 holds the most, with 61.
Standing records at Slide Mtn by the year they were set
Year set
Standing records
1961
2
1962
37
1963
61
1964
54
1965
61
1966
47
1967
40
1968
22
1969
20
1970
24
1971
25
1972
18
1973
30
1974
20
1975
20
1976
46
1977
29
1978
20
1979
47
1980
24
1981
29
1982
32
1983
14
1984
28
1985
22
1986
28
1987
27
1988
35
1989
28
1990
34
1991
30
1992
28
1993
23
1994
19
1995
26
1996
22
1997
13
1998
25
1999
23
2000
40
2001
28
2002
46
2003
17
2004
18
2005
20
2006
32
2007
23
2008
16
2009
19
2010
19
2011
22
2012
31
All-Time Record Progression
9 new records
9 all-time records were set at Slide Mtn between 14 March 1993 and 28 August 2011. Each dot is a new record.
When Slide Mtn set new all-time records
Date
Kind
Detail
1993-03-14
Record daily snowfall
Record daily snowfall 55.9 cm (22.0 in)
1993-03-14
Record snow depth
Record snow depth 177.8 cm (70.0 in)
1997-04-01
Record daily snowfall
Record daily snowfall 58.4 cm (23.0 in)
1999-07-06
Record high minimum temperature
Record high minimum temperature 20.6 C (69.1 F)
2000-12-31
Record daily snowfall
Record daily snowfall 63.5 cm (25.0 in)
2001-08-10
Record high maximum temperature
Record high maximum temperature 32.8 C (91.0 F)
2006-08-02
Record high minimum temperature
Record high minimum temperature 21.7 C (71.1 F)
2010-02-26
Record daily snowfall
Record daily snowfall 73.7 cm (29.0 in)
2011-08-28
Record daily precipitation
Record daily precipitation 218.9 mm (8.6 in)
Wettest Day of Each Month
Aug: 218.9 mm (8.6 in)
The wettest day on record for each calendar month at Slide Mtn. The most was 218.9 mm (8.6 in) on 28 August 2011.
Record daily precipitation for each month at Slide Mtn
Month
Record daily precipitation (mm)
Date
Jan
135.6 mm (5.3 in)
27 January 1976
Feb
88.9 mm (3.5 in)
2 February 1981
Mar
189.5 mm (7.5 in)
22 March 1980
Apr
168.7 mm (6.6 in)
5 April 1987
May
108.2 mm (4.3 in)
12 May 1981
Jun
125.0 mm (4.9 in)
22 June 1972
Jul
168.1 mm (6.6 in)
10 July 1952
Aug
218.9 mm (8.6 in)
28 August 2011
Sep
157.7 mm (6.2 in)
19 September 2012
Oct
209.3 mm (8.2 in)
16 October 1955
Nov
197.6 mm (7.8 in)
26 November 1950
Dec
133.6 mm (5.3 in)
21 December 1957
Period of Record Coverage
1961 to 2012
Complete yearUnder 90 percent of days
52 years of record at Slide Mtn, 1961 to 2012. 9 years have data for under 90 percent of days and are left out of rankings: 1961, 1967, 1998, 2003, 2007, 2008, 2009, 2011 and others.
Cooler than the station meanWarmer than the station mean
One stripe for each of 43 complete years at Slide Mtn, 1962 to 2011. Blue stripes are years cooler than the station's own mean of 5.1 C (41.1 F); red stripes are warmer. The coolest year was 1965, at 3.7 C (38.7 F), and the warmest was 2006, at 6.9 C (44.4 F). The strongest colour marks a difference of 1.9 C (3.4 F).
Annual mean temperature at Slide Mtn as warming stripes, 1962 to 2011
Year
Annual mean temperature
Difference from the station mean
1962
4.7 C
-0.41 C
1963
4.1 C
-0.97 C
1964
4.8 C
-0.28 C
1965
3.7 C
-1.35 C
1966
4.0 C
-1.12 C
1968
4.6 C
-0.47 C
1969
4.6 C
-0.47 C
1970
4.6 C
-0.46 C
1971
4.7 C
-0.36 C
1972
4.1 C
-0.97 C
1973
5.9 C
+0.78 C
1974
4.6 C
-0.48 C
1975
5.0 C
-0.09 C
1976
3.8 C
-1.26 C
1977
4.5 C
-0.62 C
1978
3.9 C
-1.21 C
1979
4.9 C
-0.17 C
1980
4.4 C
-0.65 C
1981
4.7 C
-0.41 C
1982
4.8 C
-0.30 C
1983
5.4 C
+0.35 C
1984
5.5 C
+0.40 C
1985
5.0 C
-0.07 C
1986
4.9 C
-0.16 C
1987
5.3 C
+0.20 C
1988
5.2 C
+0.16 C
1989
4.8 C
-0.24 C
1992
4.2 C
-0.84 C
1993
4.6 C
-0.46 C
1994
5.1 C
+0.04 C
1995
5.0 C
-0.06 C
1996
4.9 C
-0.22 C
1997
4.6 C
-0.45 C
1999
6.8 C
+1.77 C
2000
5.5 C
+0.46 C
2001
6.6 C
+1.48 C
2002
6.5 C
+1.43 C
2004
5.7 C
+0.61 C
2005
6.3 C
+1.18 C
2006
6.9 C
+1.82 C
2009
5.6 C
+0.55 C
2010
6.6 C
+1.56 C
2011
6.7 C
+1.59 C
The annual mean temperature here has risen by 0.4 C (0.3 to 0.6) per decade over 1962 to 2011. In Fahrenheit: 0.8 F (0.6 to 1.0) per decade. The slope is a straight line fitted to 43 complete years; the brackets give its 95 percent interval.
Fitted temperature trends per decade at Slide Mtn
Measure
Per decade (C)
Per decade (F)
Period
Complete years
Reading
Annual mean temperature
0.4 C (0.3 to 0.6) per decade
0.8 F (0.6 to 1.0) per decade
1962 to 2011
43
Rise
Mean daily maximum
0.18 C (0.03 to 0.33) per decade
0.3 F (0.1 to 0.6) per decade
1962 to 2011
43
Rise
Mean daily minimum
0.7 C (0.6 to 0.8) per decade
1.3 F (1.0 to 1.5) per decade
1962 to 2011
43
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
1948 to 2012
Yearly extremes at Slide Mtn: the record and the median year
Measure
Record
Year of the record
Median year
Years with a value
Hottest day (TXx)
32.8 C (91.0 F)
2001
29.4 C (84.9 F)
52
Coldest night (TNn)
-30.6 C (-23.1 F)
1963
-25.0 C (-13.0 F)
52
Wettest day (Rx1day)
218.9 mm (8.6 in)
2011
93.0 mm (3.7 in)
65
Wettest five days (Rx5day)
388.9 mm (15.3 in)
1955
149.1 mm (5.9 in)
65
Longest dry spell (CDD)
25 days
1952
13 days
65
Hottest day (TXx)
The hottest day of the year at Slide Mtn, 1948 to 2012. The record is 32.8 C (91.0 F) in 2001, marked on the chart; the median year is 29.4 C (84.9 F).
Hottest day (TXx) at Slide Mtn by year
Year
Hottest day (TXx)
1948
n/a
1949
n/a
1950
n/a
1951
n/a
1952
n/a
1953
n/a
1954
n/a
1955
n/a
1956
n/a
1957
n/a
1958
n/a
1959
n/a
1960
n/a
1961
7.2 C (45.0 F)
1962
30.0 C (86.0 F)
1963
30.0 C (86.0 F)
1964
30.0 C (86.0 F)
1965
29.4 C (84.9 F)
1966
31.7 C (89.1 F)
1967
29.4 C (84.9 F)
1968
29.4 C (84.9 F)
1969
29.4 C (84.9 F)
1970
27.2 C (81.0 F)
1971
27.8 C (82.0 F)
1972
27.2 C (81.0 F)
1973
28.9 C (84.0 F)
1974
28.9 C (84.0 F)
1975
28.3 C (82.9 F)
1976
29.4 C (84.9 F)
1977
29.4 C (84.9 F)
1978
27.2 C (81.0 F)
1979
28.3 C (82.9 F)
1980
29.4 C (84.9 F)
1981
27.2 C (81.0 F)
1982
27.8 C (82.0 F)
1983
27.8 C (82.0 F)
1984
29.4 C (84.9 F)
1985
27.2 C (81.0 F)
1986
29.4 C (84.9 F)
1987
29.4 C (84.9 F)
1988
31.1 C (88.0 F)
1989
28.3 C (82.9 F)
1990
28.3 C (82.9 F)
1991
30.6 C (87.1 F)
1992
27.8 C (82.0 F)
1993
28.3 C (82.9 F)
1994
28.3 C (82.9 F)
1995
30.6 C (87.1 F)
1996
29.4 C (84.9 F)
1997
28.3 C (82.9 F)
1998
26.7 C (80.1 F)
1999
29.4 C (84.9 F)
2000
28.9 C (84.0 F)
2001
32.8 C (91.0 F)
2002
31.7 C (89.1 F)
2003
29.4 C (84.9 F)
2004
27.8 C (82.0 F)
2005
28.9 C (84.0 F)
2006
30.6 C (87.1 F)
2007
29.4 C (84.9 F)
2008
30.0 C (86.0 F)
2009
28.9 C (84.0 F)
2010
31.1 C (88.0 F)
2011
32.2 C (90.0 F)
2012
30.6 C (87.1 F)
Coldest night (TNn)
The coldest night of the year at Slide Mtn, 1948 to 2012. The record is -30.6 C (-23.1 F) in 1963, marked on the chart; the median year is -25.0 C (-13.0 F).
Coldest night (TNn) at Slide Mtn by year
Year
Coldest night (TNn)
1948
n/a
1949
n/a
1950
n/a
1951
n/a
1952
n/a
1953
n/a
1954
n/a
1955
n/a
1956
n/a
1957
n/a
1958
n/a
1959
n/a
1960
n/a
1961
-22.8 C (-9.0 F)
1962
-27.8 C (-18.0 F)
1963
-30.6 C (-23.1 F)
1964
-23.3 C (-9.9 F)
1965
-29.4 C (-20.9 F)
1966
-25.6 C (-14.1 F)
1967
-28.3 C (-18.9 F)
1968
-27.2 C (-17.0 F)
1969
-24.4 C (-11.9 F)
1970
-25.6 C (-14.1 F)
1971
-28.3 C (-18.9 F)
1972
-25.0 C (-13.0 F)
1973
-25.0 C (-13.0 F)
1974
-21.7 C (-7.1 F)
1975
-23.9 C (-11.0 F)
1976
-28.3 C (-18.9 F)
1977
-27.2 C (-17.0 F)
1978
-23.3 C (-9.9 F)
1979
-28.9 C (-20.0 F)
1980
-30.0 C (-22.0 F)
1981
-27.2 C (-17.0 F)
1982
-30.6 C (-23.1 F)
1983
-23.3 C (-9.9 F)
1984
-26.1 C (-15.0 F)
1985
-26.1 C (-15.0 F)
1986
-25.0 C (-13.0 F)
1987
-26.1 C (-15.0 F)
1988
-26.7 C (-16.1 F)
1989
-23.3 C (-9.9 F)
1990
-22.8 C (-9.0 F)
1991
-22.8 C (-9.0 F)
1992
-22.8 C (-9.0 F)
1993
-24.4 C (-11.9 F)
1994
-29.4 C (-20.9 F)
1995
-24.4 C (-11.9 F)
1996
-25.6 C (-14.1 F)
1997
-26.7 C (-16.1 F)
1998
-21.7 C (-7.1 F)
1999
-22.2 C (-8.0 F)
2000
-26.1 C (-15.0 F)
2001
-19.4 C (-2.9 F)
2002
-20.0 C (-4.0 F)
2003
-23.3 C (-9.9 F)
2004
-26.7 C (-16.1 F)
2005
-23.9 C (-11.0 F)
2006
-20.0 C (-4.0 F)
2007
-23.9 C (-11.0 F)
2008
-22.2 C (-8.0 F)
2009
-25.0 C (-13.0 F)
2010
-22.2 C (-8.0 F)
2011
-23.9 C (-11.0 F)
2012
-21.1 C (-6.0 F)
Wettest day (Rx1day)
The wettest day of the year at Slide Mtn, 1948 to 2012. The record is 218.9 mm (8.6 in) in 2011, marked on the chart; the median year is 93.0 mm (3.7 in).
Wettest day (Rx1day) at Slide Mtn by year
Year
Wettest day (Rx1day)
1948
105.4 mm (4.1 in)
1949
64.0 mm (2.5 in)
1950
197.6 mm (7.8 in)
1951
60.7 mm (2.4 in)
1952
168.1 mm (6.6 in)
1953
62.2 mm (2.4 in)
1954
124.2 mm (4.9 in)
1955
209.3 mm (8.2 in)
1956
41.7 mm (1.6 in)
1957
133.6 mm (5.3 in)
1958
86.4 mm (3.4 in)
1959
82.8 mm (3.3 in)
1960
106.7 mm (4.2 in)
1961
94.0 mm (3.7 in)
1962
58.7 mm (2.3 in)
1963
131.1 mm (5.2 in)
1964
61.2 mm (2.4 in)
1965
140.0 mm (5.5 in)
1966
87.9 mm (3.5 in)
1967
54.1 mm (2.1 in)
1968
100.1 mm (3.9 in)
1969
65.3 mm (2.6 in)
1970
98.0 mm (3.9 in)
1971
110.5 mm (4.4 in)
1972
125.0 mm (4.9 in)
1973
86.4 mm (3.4 in)
1974
68.8 mm (2.7 in)
1975
74.7 mm (2.9 in)
1976
135.6 mm (5.3 in)
1977
77.2 mm (3.0 in)
1978
91.2 mm (3.6 in)
1979
100.6 mm (4.0 in)
1980
189.5 mm (7.5 in)
1981
108.2 mm (4.3 in)
1982
72.6 mm (2.9 in)
1983
69.6 mm (2.7 in)
1984
85.1 mm (3.4 in)
1985
126.2 mm (5.0 in)
1986
64.0 mm (2.5 in)
1987
168.7 mm (6.6 in)
1988
76.2 mm (3.0 in)
1989
105.4 mm (4.1 in)
1990
68.8 mm (2.7 in)
1991
64.0 mm (2.5 in)
1992
79.0 mm (3.1 in)
1993
100.8 mm (4.0 in)
1994
59.4 mm (2.3 in)
1995
93.0 mm (3.7 in)
1996
144.3 mm (5.7 in)
1997
86.4 mm (3.4 in)
1998
84.8 mm (3.3 in)
1999
151.9 mm (6.0 in)
2000
97.8 mm (3.9 in)
2001
82.3 mm (3.2 in)
2002
67.6 mm (2.7 in)
2003
101.6 mm (4.0 in)
2004
113.8 mm (4.5 in)
2005
117.3 mm (4.6 in)
2006
79.8 mm (3.1 in)
2007
123.4 mm (4.9 in)
2008
75.4 mm (3.0 in)
2009
69.1 mm (2.7 in)
2010
173.0 mm (6.8 in)
2011
218.9 mm (8.6 in)
2012
157.7 mm (6.2 in)
Wettest five days (Rx5day)
The wettest five days of the year at Slide Mtn, 1948 to 2012. The record is 388.9 mm (15.3 in) in 1955, marked on the chart; the median year is 149.1 mm (5.9 in).
Wettest five days (Rx5day) at Slide Mtn by year
Year
Wettest five days (Rx5day)
1948
181.1 mm (7.1 in)
1949
226.6 mm (8.9 in)
1950
237.8 mm (9.4 in)
1951
91.2 mm (3.6 in)
1952
229.3 mm (9.0 in)
1953
102.3 mm (4.0 in)
1954
144.5 mm (5.7 in)
1955
388.9 mm (15.3 in)
1956
69.6 mm (2.7 in)
1957
186.7 mm (7.4 in)
1958
160.8 mm (6.3 in)
1959
153.9 mm (6.1 in)
1960
182.9 mm (7.2 in)
1961
104.7 mm (4.1 in)
1962
117.1 mm (4.6 in)
1963
240.9 mm (9.5 in)
1964
85.5 mm (3.4 in)
1965
142.5 mm (5.6 in)
1966
110.0 mm (4.3 in)
1967
75.7 mm (3.0 in)
1968
111.8 mm (4.4 in)
1969
119.4 mm (4.7 in)
1970
132.8 mm (5.2 in)
1971
133.4 mm (5.3 in)
1972
274.1 mm (10.8 in)
1973
138.5 mm (5.5 in)
1974
108.1 mm (4.3 in)
1975
83.3 mm (3.3 in)
1976
181.4 mm (7.1 in)
1977
134.6 mm (5.3 in)
1978
159.0 mm (6.3 in)
1979
165.9 mm (6.5 in)
1980
265.2 mm (10.4 in)
1981
161.9 mm (6.4 in)
1982
144.2 mm (5.7 in)
1983
149.1 mm (5.9 in)
1984
146.1 mm (5.8 in)
1985
185.4 mm (7.3 in)
1986
116.1 mm (4.6 in)
1987
256.3 mm (10.1 in)
1988
143.0 mm (5.6 in)
1989
172.7 mm (6.8 in)
1990
116.3 mm (4.6 in)
1991
97.0 mm (3.8 in)
1992
108.0 mm (4.3 in)
1993
111.2 mm (4.4 in)
1994
104.9 mm (4.1 in)
1995
157.8 mm (6.2 in)
1996
191.1 mm (7.5 in)
1997
125.0 mm (4.9 in)
1998
209.7 mm (8.3 in)
1999
187.5 mm (7.4 in)
2000
154.0 mm (6.1 in)
2001
109.5 mm (4.3 in)
2002
101.6 mm (4.0 in)
2003
166.3 mm (6.5 in)
2004
143.5 mm (5.6 in)
2005
221.3 mm (8.7 in)
2006
216.2 mm (8.5 in)
2007
170.2 mm (6.7 in)
2008
148.9 mm (5.9 in)
2009
154.4 mm (6.1 in)
2010
199.7 mm (7.9 in)
2011
186.0 mm (7.3 in)
2012
179.3 mm (7.1 in)
Longest dry spell (CDD)
The longest dry spell of the year at Slide Mtn, 1948 to 2012. The record is 25 days in 1952, marked on the chart; the median year is 13 days.
Longest dry spell (CDD) at Slide Mtn by year
Year
Longest dry spell (CDD)
1948
16 days
1949
17 days
1950
16 days
1951
13 days
1952
25 days
1953
24 days
1954
12 days
1955
13 days
1956
14 days
1957
14 days
1958
16 days
1959
14 days
1960
12 days
1961
15 days
1962
14 days
1963
23 days
1964
17 days
1965
10 days
1966
19 days
1967
14 days
1968
21 days
1969
17 days
1970
14 days
1971
17 days
1972
9 days
1973
14 days
1974
10 days
1975
13 days
1976
13 days
1977
14 days
1978
13 days
1979
11 days
1980
12 days
1981
10 days
1982
12 days
1983
15 days
1984
17 days
1985
14 days
1986
12 days
1987
17 days
1988
10 days
1989
13 days
1990
11 days
1991
13 days
1992
11 days
1993
11 days
1994
12 days
1995
14 days
1996
9 days
1997
10 days
1998
11 days
1999
12 days
2000
21 days
2001
25 days
2002
11 days
2003
14 days
2004
12 days
2005
14 days
2006
14 days
2007
10 days
2008
12 days
2009
18 days
2010
12 days
2011
9 days
2012
11 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
43 years with a frost
Across 43 years with a frost, the median last spring frost at Slide Mtn falls on 19 May and the median first autumn frost on 29 September, which leaves a median of 133 days between them.
Fitted over all years, the growing season changes by +7.8 days per decade at this station.
Frost dates and growing season at Slide Mtn
Measure
Median, all years
Earliest period
Recent period (1976 to 2011)
Recent against earliest
Fitted trend
Last spring frost
19 May
n/a
17 May
n/a
-3.4 days per decade
First autumn frost
29 September
n/a
3 October
n/a
+4.4 days per decade
Growing days
133 days
n/a
137 days
n/a
+7.8 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.
Rainfall Return Levels
60 years, 1949 to 2011
A day with at least 93.7 mm (3.7 in) of rain is expected about once in 2 years. A day with at least 255.2 mm (10.0 in) of rain is expected about once in 100 years.
Rainfall return levels at Slide Mtn: the daily rain expected about once in a given number of years
Expected about once in
A day with at least
Note
2 years
93.7 mm (3.7 in)
5 years
129.7 mm (5.1 in)
10 years
156.2 mm (6.1 in)
25 years
193.0 mm (7.6 in)
50 years
223.0 mm (8.8 in)
100 years
255.2 mm (10.0 in)
Longer than the 60 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, 60 years of values from 1949 to 2011.
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: 218.9 mm (8.6 in) in 2011; 209.3 mm (8.2 in) in 1955; 197.6 mm (7.8 in) in 1950.
Station Changes
1 suspected
One change was suspected in the annual mean temperature of Slide Mtn, at 1999. Each is measured against neighbouring stations.
Relative to 5 neighbouring stations, the station's annual mean temperature from 1999 ran 0.4 C (0.8 F) higher than in the years before (likely change).
Suspected changes in the annual mean temperature at Slide Mtn, against neighbouring stations
Year
Shift (C)
Shift (F)
Strength
Neighbours
1999
+0.4
+0.8
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 Slide Mtn standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Slide Mtn 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.