Record envelope, standing records and threshold days for Altoona 3 W (USC00360140), Pennsylvania, United States, with 60 years of record.
Key Facts for Altoona 3 W
Altoona 3 W (USC00360140) is a weather station in Pennsylvania, United States at 40.49 latitude and -78.47 longitude, 402 m (1,320 ft) above sea level.
The station reports from 1967 to 2026, 60 years of record.
1,464 records set at Altoona 3 W still stand.
Records are tracked for tmax, tmin, prcp, snow, snwd: an element needs 30 years of data to be eligible.
Altoona 3 W tied a daily record high minimum temperature of 22.2 C (72.0 F) on 15 July 2026.
About the Station
Location: Pennsylvania, United States, 40.49 latitude, -78.47 longitude.
Elevation: 402 m (1,320 ft).
Period of record: 1967 to 2026, 60 years.
Eligible elements: tmax, tmin, prcp, snow, snwd.
Daily Record Envelope and 2026
7 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 Altoona 3 W. The lines show the 2026 daily maximum and minimum. 7 days in 2026 matched or passed a record. Temperatures are in degrees Celsius.
Daily record high and record low at Altoona 3 W, with 2026 drawn through them
Month
Highest record high
Lowest record low
2026 highest maximum
2026 lowest minimum
Jan
19.4 C (66.9 F)
-28.9 C (-20.0 F)
13.3 C (55.9 F)
-21.1 C (-6.0 F)
Feb
24.4 C (75.9 F)
-24.4 C (-11.9 F)
15.6 C (60.1 F)
-17.2 C (1.0 F)
Mar
28.3 C (82.9 F)
-19.4 C (-2.9 F)
27.2 C (81.0 F)
-12.2 C (10.0 F)
Apr
32.2 C (90.0 F)
-12.8 C (9.0 F)
28.9 C (84.0 F)
-5.6 C (21.9 F)
May
33.3 C (91.9 F)
-3.9 C (25.0 F)
31.1 C (88.0 F)
-1.1 C (30.0 F)
Jun
35.0 C (95.0 F)
1.1 C (34.0 F)
31.1 C (88.0 F)
8.9 C (48.0 F)
Jul
37.2 C (99.0 F)
6.1 C (43.0 F)
33.3 C (91.9 F)
10.0 C (50.0 F)
Aug
36.7 C (98.1 F)
1.1 C (34.0 F)
28.9 C (84.0 F)
10.6 C (51.1 F)
Sep
34.4 C (93.9 F)
-3.3 C (26.1 F)
n/a
n/a
Oct
30.6 C (87.1 F)
-8.9 C (16.0 F)
21.1 C (70.0 F)
2.8 C (37.0 F)
Nov
26.7 C (80.1 F)
-14.4 C (6.1 F)
n/a
n/a
Dec
22.2 C (72.0 F)
-23.9 C (-11.0 F)
n/a
n/a
Which Years Hold Standing Records
1,464 standing records
Year with most
1,464 records at Altoona 3 W still stand. 1976 holds the most, with 51.
Standing records at Altoona 3 W by the year they were set
Year set
Standing records
1967
5
1968
29
1969
25
1970
34
1971
38
1972
31
1973
22
1974
34
1975
27
1976
51
1977
35
1978
20
1979
39
1980
20
1981
26
1982
25
1983
15
1984
29
1985
29
1986
26
1987
20
1988
41
1989
43
1990
42
1991
37
1992
19
1993
31
1994
25
1995
24
1996
21
1997
19
1998
15
1999
17
2000
14
2001
25
2002
41
2003
10
2004
15
2005
24
2006
20
2007
20
2008
13
2009
18
2010
17
2011
25
2012
33
2013
14
2014
29
2015
32
2016
23
2017
28
2018
24
2019
8
2020
17
2021
10
2022
15
2023
19
2024
18
2025
17
2026
21
All-Time Record Progression
1 new records
1 all-time records were set at Altoona 3 W between 18 July 1999 and 18 July 1999. Each dot is a new record.
When Altoona 3 W set new all-time records
Date
Kind
Detail
1999-07-18
Record high minimum temperature
Record high minimum temperature 25.6 C (78.1 F)
Wettest Day of Each Month
Nov: 114.0 mm (4.5 in)
The wettest day on record for each calendar month at Altoona 3 W. The most was 114.0 mm (4.5 in) on 8 November 1997.
Record daily precipitation for each month at Altoona 3 W
Month
Record daily precipitation (mm)
Date
Jan
59.7 mm (2.4 in)
1 January 2003
Feb
45.7 mm (1.8 in)
3 February 2022
Mar
62.5 mm (2.5 in)
3 March 1994
Apr
66.8 mm (2.6 in)
2 April 2024
May
70.6 mm (2.8 in)
29 May 1982
Jun
99.8 mm (3.9 in)
20 June 2015
Jul
76.2 mm (3.0 in)
28 July 1982
Aug
78.7 mm (3.1 in)
31 August 1970
Sep
105.4 mm (4.1 in)
9 September 2018
Oct
84.3 mm (3.3 in)
7 October 2005
Nov
114.0 mm (4.5 in)
8 November 1997
Dec
53.3 mm (2.1 in)
16 December 2020
Period of Record Coverage
1967 to 2026
Complete yearUnder 90 percent of days
60 years of record at Altoona 3 W, 1967 to 2026. 6 years have data for under 90 percent of days and are left out of rankings: 1967, 1998, 1999, 2000, 2001, 2026.
Cooler than the station meanWarmer than the station mean
One stripe for each of 52 complete years at Altoona 3 W, 1969 to 2025. Blue stripes are years cooler than the station's own mean of 9.5 C (49.0 F); red stripes are warmer. The coolest year was 1978, at 8.1 C (46.6 F), and the warmest was 2024, at 11.1 C (52.1 F). The strongest colour marks a difference of 1.7 C (3.1 F).
Annual mean temperature at Altoona 3 W as warming stripes, 1969 to 2025
Year
Annual mean temperature
Difference from the station mean
1969
8.8 C
-0.66 C
1970
9.3 C
-0.20 C
1971
9.0 C
-0.44 C
1972
8.5 C
-0.95 C
1973
9.9 C
+0.41 C
1974
9.0 C
-0.42 C
1975
9.1 C
-0.33 C
1976
8.3 C
-1.17 C
1977
9.0 C
-0.48 C
1978
8.1 C
-1.34 C
1979
8.4 C
-1.10 C
1980
8.6 C
-0.91 C
1981
8.7 C
-0.78 C
1982
8.6 C
-0.83 C
1983
9.2 C
-0.24 C
1985
9.3 C
-0.19 C
1986
9.2 C
-0.23 C
1987
9.6 C
+0.11 C
1988
8.8 C
-0.62 C
1989
8.5 C
-1.00 C
1990
10.3 C
+0.80 C
1991
10.4 C
+0.91 C
1992
8.5 C
-0.99 C
1993
8.9 C
-0.58 C
1994
9.1 C
-0.41 C
1995
9.0 C
-0.45 C
1996
8.4 C
-1.04 C
1997
8.8 C
-0.66 C
2002
10.1 C
+0.62 C
2003
8.9 C
-0.56 C
2004
9.6 C
+0.18 C
2005
9.9 C
+0.43 C
2006
10.6 C
+1.16 C
2007
9.8 C
+0.36 C
2008
9.4 C
-0.02 C
2009
9.2 C
-0.28 C
2010
10.1 C
+0.68 C
2011
10.4 C
+0.98 C
2012
11.1 C
+1.68 C
2013
9.4 C
-0.03 C
2014
8.7 C
-0.81 C
2015
9.8 C
+0.38 C
2016
10.6 C
+1.09 C
2017
10.3 C
+0.85 C
2018
9.8 C
+0.29 C
2019
9.9 C
+0.46 C
2020
10.6 C
+1.15 C
2021
10.7 C
+1.22 C
2022
9.6 C
+0.18 C
2023
10.9 C
+1.43 C
2024
11.1 C
+1.68 C
2025
10.0 C
+0.56 C
The annual mean temperature here has risen by 0.3 C (0.2 to 0.4) per decade over 1969 to 2025. In Fahrenheit: 0.6 F (0.4 to 0.7) per decade. The slope is a straight line fitted to 52 complete years; the brackets give its 95 percent interval.
Fitted temperature trends per decade at Altoona 3 W
Measure
Per decade (C)
Per decade (F)
Period
Complete years
Reading
Annual mean temperature
0.3 C (0.2 to 0.4) per decade
0.6 F (0.4 to 0.7) per decade
1969 to 2025
52
Rise
Mean daily maximum
0.2 C (0.1 to 0.3) per decade
0.4 F (0.2 to 0.6) per decade
1969 to 2025
52
Rise
Mean daily minimum
0.4 C (0.3 to 0.5) per decade
0.8 F (0.6 to 0.9) per decade
1969 to 2025
52
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
1967 to 2026
Yearly extremes at Altoona 3 W: 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)
1988
33.3 C (91.9 F)
60
Coldest night (TNn)
-28.9 C (-20.0 F)
1994
-20.6 C (-5.1 F)
60
Wettest day (Rx1day)
114.0 mm (4.5 in)
1997
54.2 mm (2.1 in)
60
Wettest five days (Rx5day)
203.2 mm (8.0 in)
1972
88.6 mm (3.5 in)
60
Longest dry spell (CDD)
31 days
1995
14 days
60
Hottest day (TXx)
The hottest day of the year at Altoona 3 W, 1967 to 2026. The record is 37.2 C (99.0 F) in 1988, marked on the chart; the median year is 33.3 C (91.9 F).
Hottest day (TXx) at Altoona 3 W by year
Year
Hottest day (TXx)
1967
27.2 C (81.0 F)
1968
33.3 C (91.9 F)
1969
35.0 C (95.0 F)
1970
33.3 C (91.9 F)
1971
35.0 C (95.0 F)
1972
32.8 C (91.0 F)
1973
34.4 C (93.9 F)
1974
32.2 C (90.0 F)
1975
34.4 C (93.9 F)
1976
32.2 C (90.0 F)
1977
34.4 C (93.9 F)
1978
32.2 C (90.0 F)
1979
31.1 C (88.0 F)
1980
33.9 C (93.0 F)
1981
31.7 C (89.1 F)
1982
32.2 C (90.0 F)
1983
33.9 C (93.0 F)
1984
31.1 C (88.0 F)
1985
32.2 C (90.0 F)
1986
31.7 C (89.1 F)
1987
33.3 C (91.9 F)
1988
37.2 C (99.0 F)
1989
32.2 C (90.0 F)
1990
32.2 C (90.0 F)
1991
33.9 C (93.0 F)
1992
31.1 C (88.0 F)
1993
33.3 C (91.9 F)
1994
33.3 C (91.9 F)
1995
35.6 C (96.1 F)
1996
32.2 C (90.0 F)
1997
33.3 C (91.9 F)
1998
31.7 C (89.1 F)
1999
36.7 C (98.1 F)
2000
31.1 C (88.0 F)
2001
33.9 C (93.0 F)
2002
34.4 C (93.9 F)
2003
31.7 C (89.1 F)
2004
31.1 C (88.0 F)
2005
34.4 C (93.9 F)
2006
33.3 C (91.9 F)
2007
33.3 C (91.9 F)
2008
32.8 C (91.0 F)
2009
31.7 C (89.1 F)
2010
35.0 C (95.0 F)
2011
37.2 C (99.0 F)
2012
35.6 C (96.1 F)
2013
33.9 C (93.0 F)
2014
31.7 C (89.1 F)
2015
32.2 C (90.0 F)
2016
34.4 C (93.9 F)
2017
32.8 C (91.0 F)
2018
32.2 C (90.0 F)
2019
32.8 C (91.0 F)
2020
33.9 C (93.0 F)
2021
32.2 C (90.0 F)
2022
33.3 C (91.9 F)
2023
31.1 C (88.0 F)
2024
35.0 C (95.0 F)
2025
32.8 C (91.0 F)
2026
33.3 C (91.9 F)
Coldest night (TNn)
The coldest night of the year at Altoona 3 W, 1967 to 2026. The record is -28.9 C (-20.0 F) in 1994, marked on the chart; the median year is -20.6 C (-5.1 F).
Coldest night (TNn) at Altoona 3 W by year
Year
Coldest night (TNn)
1967
-16.1 C (3.0 F)
1968
-23.3 C (-9.9 F)
1969
-20.0 C (-4.0 F)
1970
-21.1 C (-6.0 F)
1971
-22.2 C (-8.0 F)
1972
-22.2 C (-8.0 F)
1973
-20.6 C (-5.1 F)
1974
-17.2 C (1.0 F)
1975
-22.2 C (-8.0 F)
1976
-22.2 C (-8.0 F)
1977
-25.0 C (-13.0 F)
1978
-21.7 C (-7.1 F)
1979
-24.4 C (-11.9 F)
1980
-18.9 C (-2.0 F)
1981
-23.3 C (-9.9 F)
1982
-27.2 C (-17.0 F)
1983
-23.9 C (-11.0 F)
1984
-26.1 C (-15.0 F)
1985
-27.8 C (-18.0 F)
1986
-19.4 C (-2.9 F)
1987
-21.7 C (-7.1 F)
1988
-20.6 C (-5.1 F)
1989
-21.1 C (-6.0 F)
1990
-19.4 C (-2.9 F)
1991
-16.1 C (3.0 F)
1992
-18.3 C (-0.9 F)
1993
-22.2 C (-8.0 F)
1994
-28.9 C (-20.0 F)
1995
-18.9 C (-2.0 F)
1996
-21.1 C (-6.0 F)
1997
-21.7 C (-7.1 F)
1998
-15.6 C (3.9 F)
1999
-4.4 C (24.1 F)
2000
3.3 C (37.9 F)
2001
-15.0 C (5.0 F)
2002
-15.0 C (5.0 F)
2003
-17.8 C (0.0 F)
2004
-20.6 C (-5.1 F)
2005
-18.9 C (-2.0 F)
2006
-15.6 C (3.9 F)
2007
-20.0 C (-4.0 F)
2008
-17.2 C (1.0 F)
2009
-24.4 C (-11.9 F)
2010
-15.0 C (5.0 F)
2011
-21.1 C (-6.0 F)
2012
-15.6 C (3.9 F)
2013
-16.7 C (1.9 F)
2014
-23.9 C (-11.0 F)
2015
-22.8 C (-9.0 F)
2016
-17.2 C (1.0 F)
2017
-16.1 C (3.0 F)
2018
-22.2 C (-8.0 F)
2019
-23.9 C (-11.0 F)
2020
-13.9 C (7.0 F)
2021
-15.0 C (5.0 F)
2022
-19.4 C (-2.9 F)
2023
-15.6 C (3.9 F)
2024
-14.4 C (6.1 F)
2025
-22.8 C (-9.0 F)
2026
-21.1 C (-6.0 F)
Wettest day (Rx1day)
The wettest day of the year at Altoona 3 W, 1967 to 2026. The record is 114.0 mm (4.5 in) in 1997, marked on the chart; the median year is 54.2 mm (2.1 in).
Wettest day (Rx1day) at Altoona 3 W by year
Year
Wettest day (Rx1day)
1967
39.1 mm (1.5 in)
1968
50.8 mm (2.0 in)
1969
50.8 mm (2.0 in)
1970
78.7 mm (3.1 in)
1971
51.3 mm (2.0 in)
1972
88.1 mm (3.5 in)
1973
53.8 mm (2.1 in)
1974
49.3 mm (1.9 in)
1975
42.7 mm (1.7 in)
1976
60.5 mm (2.4 in)
1977
65.3 mm (2.6 in)
1978
34.3 mm (1.4 in)
1979
61.5 mm (2.4 in)
1980
63.0 mm (2.5 in)
1981
47.2 mm (1.9 in)
1982
76.2 mm (3.0 in)
1983
71.1 mm (2.8 in)
1984
53.8 mm (2.1 in)
1985
47.5 mm (1.9 in)
1986
43.4 mm (1.7 in)
1987
37.8 mm (1.5 in)
1988
62.0 mm (2.4 in)
1989
50.0 mm (2.0 in)
1990
44.2 mm (1.7 in)
1991
83.1 mm (3.3 in)
1992
51.8 mm (2.0 in)
1993
92.2 mm (3.6 in)
1994
66.8 mm (2.6 in)
1995
65.5 mm (2.6 in)
1996
82.6 mm (3.3 in)
1997
114.0 mm (4.5 in)
1998
37.6 mm (1.5 in)
1999
53.3 mm (2.1 in)
2000
45.7 mm (1.8 in)
2001
46.5 mm (1.8 in)
2002
43.2 mm (1.7 in)
2003
75.2 mm (3.0 in)
2004
97.3 mm (3.8 in)
2005
84.3 mm (3.3 in)
2006
50.0 mm (2.0 in)
2007
63.8 mm (2.5 in)
2008
44.7 mm (1.8 in)
2009
40.6 mm (1.6 in)
2010
72.9 mm (2.9 in)
2011
68.8 mm (2.7 in)
2012
82.8 mm (3.3 in)
2013
48.3 mm (1.9 in)
2014
49.5 mm (1.9 in)
2015
99.8 mm (3.9 in)
2016
44.7 mm (1.8 in)
2017
72.1 mm (2.8 in)
2018
105.4 mm (4.1 in)
2019
54.6 mm (2.1 in)
2020
57.2 mm (2.3 in)
2021
82.6 mm (3.3 in)
2022
92.5 mm (3.6 in)
2023
39.6 mm (1.6 in)
2024
67.8 mm (2.7 in)
2025
53.6 mm (2.1 in)
2026
36.8 mm (1.4 in)
Wettest five days (Rx5day)
The wettest five days of the year at Altoona 3 W, 1967 to 2026. The record is 203.2 mm (8.0 in) in 1972, marked on the chart; the median year is 88.6 mm (3.5 in).
Wettest five days (Rx5day) at Altoona 3 W by year
Year
Wettest five days (Rx5day)
1967
43.4 mm (1.7 in)
1968
63.5 mm (2.5 in)
1969
94.2 mm (3.7 in)
1970
89.9 mm (3.5 in)
1971
78.0 mm (3.1 in)
1972
203.2 mm (8.0 in)
1973
69.9 mm (2.8 in)
1974
102.5 mm (4.0 in)
1975
112.6 mm (4.4 in)
1976
92.3 mm (3.6 in)
1977
101.4 mm (4.0 in)
1978
98.3 mm (3.9 in)
1979
73.2 mm (2.9 in)
1980
90.9 mm (3.6 in)
1981
75.9 mm (3.0 in)
1982
92.5 mm (3.6 in)
1983
78.0 mm (3.1 in)
1984
73.1 mm (2.9 in)
1985
94.3 mm (3.7 in)
1986
76.2 mm (3.0 in)
1987
69.9 mm (2.8 in)
1988
75.9 mm (3.0 in)
1989
63.5 mm (2.5 in)
1990
108.0 mm (4.3 in)
1991
87.4 mm (3.4 in)
1992
62.2 mm (2.4 in)
1993
94.5 mm (3.7 in)
1994
96.0 mm (3.8 in)
1995
88.4 mm (3.5 in)
1996
147.8 mm (5.8 in)
1997
146.3 mm (5.8 in)
1998
61.8 mm (2.4 in)
1999
64.0 mm (2.5 in)
2000
65.3 mm (2.6 in)
2001
48.5 mm (1.9 in)
2002
62.7 mm (2.5 in)
2003
94.0 mm (3.7 in)
2004
139.9 mm (5.5 in)
2005
91.7 mm (3.6 in)
2006
86.6 mm (3.4 in)
2007
146.1 mm (5.8 in)
2008
78.3 mm (3.1 in)
2009
69.3 mm (2.7 in)
2010
102.7 mm (4.0 in)
2011
187.4 mm (7.4 in)
2012
110.8 mm (4.4 in)
2013
71.3 mm (2.8 in)
2014
65.8 mm (2.6 in)
2015
123.9 mm (4.9 in)
2016
74.4 mm (2.9 in)
2017
108.1 mm (4.3 in)
2018
183.4 mm (7.2 in)
2019
69.1 mm (2.7 in)
2020
78.0 mm (3.1 in)
2021
142.7 mm (5.6 in)
2022
117.5 mm (4.6 in)
2023
88.7 mm (3.5 in)
2024
158.5 mm (6.2 in)
2025
85.3 mm (3.4 in)
2026
67.1 mm (2.6 in)
Longest dry spell (CDD)
The longest dry spell of the year at Altoona 3 W, 1967 to 2026. The record is 31 days in 1995, marked on the chart; the median year is 14 days.
Longest dry spell (CDD) at Altoona 3 W by year
Year
Longest dry spell (CDD)
1967
9 days
1968
25 days
1969
14 days
1970
9 days
1971
13 days
1972
14 days
1973
15 days
1974
17 days
1975
11 days
1976
11 days
1977
22 days
1978
13 days
1979
13 days
1980
21 days
1981
25 days
1982
12 days
1983
22 days
1984
10 days
1985
22 days
1986
16 days
1987
22 days
1988
24 days
1989
10 days
1990
12 days
1991
24 days
1992
18 days
1993
13 days
1994
17 days
1995
31 days
1996
15 days
1997
14 days
1998
22 days
1999
16 days
2000
13 days
2001
22 days
2002
12 days
2003
14 days
2004
13 days
2005
16 days
2006
17 days
2007
14 days
2008
16 days
2009
13 days
2010
17 days
2011
16 days
2012
13 days
2013
12 days
2014
14 days
2015
12 days
2016
16 days
2017
14 days
2018
11 days
2019
11 days
2020
15 days
2021
13 days
2022
11 days
2023
13 days
2024
18 days
2025
15 days
2026
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
52 years with a frost
Across 52 years with a frost, the median last spring frost at Altoona 3 W falls on 1 May and the median first autumn frost on 17 October, which leaves a median of 169 days between them.
Fitted over all years, the growing season changes by +4.0 days per decade at this station.
Frost dates and growing season at Altoona 3 W
Measure
Median, all years
Earliest period
Recent period (1992 to 2025)
Recent against earliest
Fitted trend
Last spring frost
1 May
n/a
29 April
n/a
-1.0 days per decade
First autumn frost
17 October
n/a
21 October
n/a
+3.1 days per decade
Growing days
169 days
n/a
172 days
n/a
+4.0 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
55 years, 1968 to 2025
A day with at least 59.7 mm (2.4 in) of rain is expected about once in 2 years. A day with at least 127.4 mm (5.0 in) of rain is expected about once in 100 years.
Rainfall return levels at Altoona 3 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
59.7 mm (2.4 in)
5 years
77.2 mm (3.0 in)
10 years
89.1 mm (3.5 in)
25 years
104.3 mm (4.1 in)
50 years
115.8 mm (4.6 in)
100 years
127.4 mm (5.0 in)
Longer than the 55 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, 55 years of values from 1968 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: 114.0 mm (4.5 in) in 1997; 105.4 mm (4.1 in) in 2018; 99.8 mm (3.9 in) in 2015.
Station Changes
No change in the annual mean temperature of this station was found against its neighbours.
Climate Twins
2011 to 2025 against 1961 to 1990
Over 2011 to 2025, Altoona 3 W had a mean temperature of 10.2 C (50.4 F) and 1,204.1 mm (47.4 in) of rain a year. The 3 stations whose 1961 to 1990 climate was closest to that are E Stroudsburg (United States, 281 km away), Boonton 1 SE (United States, 346 km away) and Essex Fells Svc Bldg (United States, 355 km away).
Climate twins of Altoona 3 W: stations whose 1961 to 1990 climate is closest to its 2011 to 2025 climate
Twins are stations, not cities. A twin is one of the three stations at least 100 km away whose earlier climate is closest to this station's recent one, so a close match does not mean the two places look alike in other ways. A station move or a gap in a record can change that station's averages. The list describes past climate; it is not a forecast and does not say what caused any change. How twins are found, and a search for any station.
Download the Data
Data for Altoona 3 W standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Altoona 3 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 2026-10-13 (13 October 2026). Records are computed by this site and are not official.