Record envelope, standing records and threshold days for Emporium (USC00362629), Pennsylvania, United States, with 40 years of record.
Key Facts for Emporium
Emporium (USC00362629) is a weather station in Pennsylvania, United States at 41.51 latitude and -78.23 longitude, 317 m (1,040 ft) above sea level.
The station reports from 1969 to 2008, 40 years of record.
1,464 records set at Emporium still stand.
Records are tracked for tmax, tmin, prcp, snow, snwd: an element needs 30 years of data to be eligible.
Emporium set a daily record precipitation of 37.6 mm (1.5 in) on 29 August 2008.
About the Station
Location: Pennsylvania, United States, 41.51 latitude, -78.23 longitude.
Elevation: 317 m (1,040 ft).
Period of record: 1969 to 2008, 40 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 Emporium. 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 Emporium, with 2026 drawn through them
Month
Highest record high
Lowest record low
2026 highest maximum
2026 lowest minimum
Jan
17.8 C (64.0 F)
-33.3 C (-27.9 F)
n/a
n/a
Feb
21.1 C (70.0 F)
-30.0 C (-22.0 F)
n/a
n/a
Mar
28.9 C (84.0 F)
-22.8 C (-9.0 F)
n/a
n/a
Apr
33.3 C (91.9 F)
-12.2 C (10.0 F)
n/a
n/a
May
34.4 C (93.9 F)
-5.6 C (21.9 F)
n/a
n/a
Jun
36.1 C (97.0 F)
0.0 C (32.0 F)
n/a
n/a
Jul
38.3 C (100.9 F)
2.8 C (37.0 F)
n/a
n/a
Aug
36.7 C (98.1 F)
1.1 C (34.0 F)
n/a
n/a
Sep
35.0 C (95.0 F)
-2.8 C (27.0 F)
n/a
n/a
Oct
30.0 C (86.0 F)
-11.1 C (12.0 F)
n/a
n/a
Nov
26.7 C (80.1 F)
-16.1 C (3.0 F)
n/a
n/a
Dec
21.1 C (70.0 F)
-26.1 C (-15.0 F)
n/a
n/a
Which Years Hold Standing Records
1,464 standing records
Year with most
1,464 records at Emporium still stand. 1988 holds the most, with 63.
Standing records at Emporium by the year they were set
Year set
Standing records
1969
24
1970
39
1971
55
1972
54
1973
35
1974
34
1975
35
1976
58
1977
57
1978
31
1979
55
1980
27
1981
42
1982
38
1983
39
1984
48
1985
22
1986
42
1987
21
1988
63
1989
41
1990
48
1991
48
1992
28
1993
38
1994
26
1995
36
1996
33
1997
22
1998
33
1999
26
2000
31
2001
30
2002
47
2003
20
2004
23
2005
27
2006
28
2007
42
2008
18
All-Time Record Progression
1 new records
1 all-time records were set at Emporium between 18 September 2004 and 18 September 2004. Each dot is a new record.
When Emporium set new all-time records
Date
Kind
Detail
2004-09-18
Record daily precipitation
Record daily precipitation 119.1 mm (4.7 in)
Wettest Day of Each Month
Sep: 119.1 mm (4.7 in)
The wettest day on record for each calendar month at Emporium. The most was 119.1 mm (4.7 in) on 18 September 2004.
Record daily precipitation for each month at Emporium
Month
Record daily precipitation (mm)
Date
Jan
38.9 mm (1.5 in)
18 January 1978
Feb
36.1 mm (1.4 in)
17 February 1976
Mar
46.5 mm (1.8 in)
31 March 1974
Apr
62.5 mm (2.5 in)
26 April 1983
May
56.9 mm (2.2 in)
19 May 2000
Jun
93.0 mm (3.7 in)
23 June 1972
Jul
69.9 mm (2.8 in)
16 July 1992
Aug
91.7 mm (3.6 in)
8 August 2007
Sep
119.1 mm (4.7 in)
18 September 2004
Oct
73.7 mm (2.9 in)
21 October 1995
Nov
59.7 mm (2.4 in)
28 November 1993
Dec
42.9 mm (1.7 in)
22 December 1998
Period of Record Coverage
1969 to 2008
Complete yearUnder 90 percent of days
40 years of record at Emporium, 1969 to 2008. 5 years have data for under 90 percent of days and are left out of rankings: 1969, 1983, 1987, 1988, 2008.
Cooler than the station meanWarmer than the station mean
One stripe for each of 32 complete years at Emporium, 1970 to 2007. Blue stripes are years cooler than the station's own mean of 8.7 C (47.7 F); red stripes are warmer. The coolest year was 1979, at 7.8 C (46.0 F), and the warmest was 1998, at 10.5 C (50.8 F). The strongest colour marks a difference of 1.8 C (3.2 F).
Annual mean temperature at Emporium as warming stripes, 1970 to 2007
Year
Annual mean temperature
Difference from the station mean
1970
8.9 C
+0.19 C
1971
8.9 C
+0.18 C
1972
8.0 C
-0.72 C
1973
9.5 C
+0.77 C
1974
8.5 C
-0.25 C
1975
9.0 C
+0.33 C
1976
7.8 C
-0.92 C
1979
7.8 C
-0.96 C
1980
7.9 C
-0.85 C
1981
7.8 C
-0.87 C
1982
7.8 C
-0.92 C
1985
8.4 C
-0.30 C
1986
8.7 C
+0.02 C
1989
8.4 C
-0.31 C
1990
9.8 C
+1.07 C
1991
9.7 C
+1.00 C
1992
8.3 C
-0.44 C
1993
8.4 C
-0.29 C
1994
8.3 C
-0.42 C
1995
8.6 C
-0.07 C
1996
8.2 C
-0.49 C
1997
8.2 C
-0.51 C
1998
10.5 C
+1.74 C
1999
9.3 C
+0.56 C
2000
8.6 C
-0.13 C
2001
9.3 C
+0.62 C
2002
9.4 C
+0.70 C
2003
8.4 C
-0.36 C
2004
8.9 C
+0.22 C
2005
8.9 C
+0.14 C
2006
9.7 C
+1.02 C
2007
9.0 C
+0.30 C
The fitted trend in annual mean temperature here over 1970 to 2007 is 0.2 C (0.0 to 0.4) per decade. The interval includes zero, so the trend is not clearly different from zero. In Fahrenheit: 0.4 F (0.0 to 0.7) per decade. The slope is a straight line fitted to 32 complete years; the brackets give its 95 percent interval.
Fitted temperature trends per decade at Emporium
Measure
Per decade (C)
Per decade (F)
Period
Complete years
Reading
Annual mean temperature
0.2 C (0.0 to 0.4) per decade
0.4 F (0.0 to 0.7) per decade
1970 to 2007
32
Not clearly different from zero
Mean daily maximum
0.1 C (-0.1 to 0.3) per decade
0.1 F (-0.3 to 0.6) per decade
1970 to 2007
32
Not clearly different from zero
Mean daily minimum
0.3 C (0.1 to 0.5) per decade
0.6 F (0.2 to 1.0) per decade
1970 to 2007
32
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
1969 to 2008
Yearly extremes at Emporium: the record and the median year
Measure
Record
Year of the record
Median year
Years with a value
Hottest day (TXx)
38.3 C (100.9 F)
1988
33.9 C (93.0 F)
40
Coldest night (TNn)
-33.3 C (-27.9 F)
1994
-23.0 C (-9.5 F)
40
Wettest day (Rx1day)
119.1 mm (4.7 in)
2004
50.7 mm (2.0 in)
40
Wettest five days (Rx5day)
171.3 mm (6.7 in)
1972
78.5 mm (3.1 in)
40
Longest dry spell (CDD)
24 days
1981
15 days
40
Hottest day (TXx)
The hottest day of the year at Emporium, 1969 to 2008. The record is 38.3 C (100.9 F) in 1988, marked on the chart; the median year is 33.9 C (93.0 F).
Hottest day (TXx) at Emporium by year
Year
Hottest day (TXx)
1969
33.9 C (93.0 F)
1970
33.3 C (91.9 F)
1971
33.3 C (91.9 F)
1972
34.4 C (93.9 F)
1973
34.4 C (93.9 F)
1974
33.9 C (93.0 F)
1975
35.0 C (95.0 F)
1976
33.3 C (91.9 F)
1977
35.0 C (95.0 F)
1978
35.6 C (96.1 F)
1979
32.8 C (91.0 F)
1980
35.0 C (95.0 F)
1981
33.3 C (91.9 F)
1982
31.7 C (89.1 F)
1983
35.0 C (95.0 F)
1984
32.8 C (91.0 F)
1985
31.7 C (89.1 F)
1986
32.8 C (91.0 F)
1987
36.1 C (97.0 F)
1988
38.3 C (100.9 F)
1989
33.3 C (91.9 F)
1990
35.0 C (95.0 F)
1991
35.6 C (96.1 F)
1992
30.6 C (87.1 F)
1993
33.3 C (91.9 F)
1994
33.9 C (93.0 F)
1995
36.7 C (98.1 F)
1996
33.9 C (93.0 F)
1997
32.8 C (91.0 F)
1998
32.8 C (91.0 F)
1999
36.1 C (97.0 F)
2000
31.7 C (89.1 F)
2001
35.6 C (96.1 F)
2002
35.0 C (95.0 F)
2003
32.8 C (91.0 F)
2004
31.7 C (89.1 F)
2005
33.9 C (93.0 F)
2006
34.4 C (93.9 F)
2007
34.4 C (93.9 F)
2008
34.4 C (93.9 F)
Coldest night (TNn)
The coldest night of the year at Emporium, 1969 to 2008. The record is -33.3 C (-27.9 F) in 1994, marked on the chart; the median year is -23.0 C (-9.5 F).
Coldest night (TNn) at Emporium by year
Year
Coldest night (TNn)
1969
-22.8 C (-9.0 F)
1970
-23.3 C (-9.9 F)
1971
-27.2 C (-17.0 F)
1972
-22.8 C (-9.0 F)
1973
-25.0 C (-13.0 F)
1974
-19.4 C (-2.9 F)
1975
-22.8 C (-9.0 F)
1976
-26.7 C (-16.1 F)
1977
-27.2 C (-17.0 F)
1978
-25.6 C (-14.1 F)
1979
-30.0 C (-22.0 F)
1980
-25.0 C (-13.0 F)
1981
-29.4 C (-20.9 F)
1982
-27.2 C (-17.0 F)
1983
-20.6 C (-5.1 F)
1984
-30.6 C (-23.1 F)
1985
-27.2 C (-17.0 F)
1986
-20.6 C (-5.1 F)
1987
-25.6 C (-14.1 F)
1988
-22.8 C (-9.0 F)
1989
-26.1 C (-15.0 F)
1990
-22.8 C (-9.0 F)
1991
-20.0 C (-4.0 F)
1992
-20.0 C (-4.0 F)
1993
-25.0 C (-13.0 F)
1994
-33.3 C (-27.9 F)
1995
-20.6 C (-5.1 F)
1996
-25.6 C (-14.1 F)
1997
-26.7 C (-16.1 F)
1998
-15.6 C (3.9 F)
1999
-21.1 C (-6.0 F)
2000
-22.2 C (-8.0 F)
2001
-15.0 C (5.0 F)
2002
-18.9 C (-2.0 F)
2003
-22.2 C (-8.0 F)
2004
-25.0 C (-13.0 F)
2005
-24.4 C (-11.9 F)
2006
-16.1 C (3.0 F)
2007
-22.8 C (-9.0 F)
2008
-18.9 C (-2.0 F)
Wettest day (Rx1day)
The wettest day of the year at Emporium, 1969 to 2008. The record is 119.1 mm (4.7 in) in 2004, marked on the chart; the median year is 50.7 mm (2.0 in).
Wettest day (Rx1day) at Emporium by year
Year
Wettest day (Rx1day)
1969
35.1 mm (1.4 in)
1970
44.5 mm (1.8 in)
1971
43.9 mm (1.7 in)
1972
93.0 mm (3.7 in)
1973
56.4 mm (2.2 in)
1974
63.2 mm (2.5 in)
1975
103.4 mm (4.1 in)
1976
38.4 mm (1.5 in)
1977
43.9 mm (1.7 in)
1978
39.9 mm (1.6 in)
1979
40.6 mm (1.6 in)
1980
48.3 mm (1.9 in)
1981
53.6 mm (2.1 in)
1982
36.8 mm (1.4 in)
1983
62.5 mm (2.5 in)
1984
57.2 mm (2.3 in)
1985
38.1 mm (1.5 in)
1986
31.5 mm (1.2 in)
1987
49.5 mm (1.9 in)
1988
37.6 mm (1.5 in)
1989
55.1 mm (2.2 in)
1990
40.4 mm (1.6 in)
1991
32.0 mm (1.3 in)
1992
69.9 mm (2.8 in)
1993
59.7 mm (2.4 in)
1994
64.0 mm (2.5 in)
1995
73.7 mm (2.9 in)
1996
62.2 mm (2.4 in)
1997
32.3 mm (1.3 in)
1998
42.9 mm (1.7 in)
1999
41.9 mm (1.6 in)
2000
56.9 mm (2.2 in)
2001
49.8 mm (2.0 in)
2002
51.6 mm (2.0 in)
2003
72.1 mm (2.8 in)
2004
119.1 mm (4.7 in)
2005
57.4 mm (2.3 in)
2006
52.1 mm (2.1 in)
2007
91.7 mm (3.6 in)
2008
37.6 mm (1.5 in)
Wettest five days (Rx5day)
The wettest five days of the year at Emporium, 1969 to 2008. The record is 171.3 mm (6.7 in) in 1972, marked on the chart; the median year is 78.5 mm (3.1 in).
Wettest five days (Rx5day) at Emporium by year
Year
Wettest five days (Rx5day)
1969
52.6 mm (2.1 in)
1970
79.7 mm (3.1 in)
1971
67.7 mm (2.7 in)
1972
171.3 mm (6.7 in)
1973
77.2 mm (3.0 in)
1974
81.1 mm (3.2 in)
1975
143.3 mm (5.6 in)
1976
75.8 mm (3.0 in)
1977
73.4 mm (2.9 in)
1978
74.7 mm (2.9 in)
1979
77.2 mm (3.0 in)
1980
65.5 mm (2.6 in)
1981
108.5 mm (4.3 in)
1982
83.5 mm (3.3 in)
1983
80.2 mm (3.2 in)
1984
69.2 mm (2.7 in)
1985
71.8 mm (2.8 in)
1986
67.8 mm (2.7 in)
1987
69.9 mm (2.8 in)
1988
56.2 mm (2.2 in)
1989
89.9 mm (3.5 in)
1990
84.8 mm (3.3 in)
1991
49.0 mm (1.9 in)
1992
133.1 mm (5.2 in)
1993
84.3 mm (3.3 in)
1994
144.3 mm (5.7 in)
1995
74.2 mm (2.9 in)
1996
93.0 mm (3.7 in)
1997
56.9 mm (2.2 in)
1998
52.9 mm (2.1 in)
1999
71.4 mm (2.8 in)
2000
59.9 mm (2.4 in)
2001
91.0 mm (3.6 in)
2002
84.2 mm (3.3 in)
2003
132.9 mm (5.2 in)
2004
122.0 mm (4.8 in)
2005
80.6 mm (3.2 in)
2006
116.4 mm (4.6 in)
2007
113.9 mm (4.5 in)
2008
60.7 mm (2.4 in)
Longest dry spell (CDD)
The longest dry spell of the year at Emporium, 1969 to 2008. The record is 24 days in 1981, marked on the chart; the median year is 15 days.
Longest dry spell (CDD) at Emporium by year
Year
Longest dry spell (CDD)
1969
12 days
1970
15 days
1971
22 days
1972
11 days
1973
15 days
1974
10 days
1975
14 days
1976
13 days
1977
18 days
1978
18 days
1979
12 days
1980
20 days
1981
24 days
1982
11 days
1983
20 days
1984
16 days
1985
15 days
1986
15 days
1987
23 days
1988
15 days
1989
13 days
1990
13 days
1991
22 days
1992
18 days
1993
10 days
1994
12 days
1995
23 days
1996
12 days
1997
14 days
1998
16 days
1999
14 days
2000
13 days
2001
16 days
2002
11 days
2003
14 days
2004
15 days
2005
16 days
2006
17 days
2007
11 days
2008
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
32 years with a frost
Across 32 years with a frost, the median last spring frost at Emporium falls on 12 May and the median first autumn frost on 11 October, which leaves a median of 150 days between them.
Fitted over all years, the growing season changes by +2.7 days per decade at this station.
Frost dates and growing season at Emporium
Measure
Median, all years
Earliest period
Recent period (1972 to 2007)
Recent against earliest
Fitted trend
Last spring frost
12 May
n/a
12 May
n/a
-1.0 days per decade
First autumn frost
11 October
n/a
10 October
n/a
+1.6 days per decade
Growing days
150 days
n/a
150 days
n/a
+2.7 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
36 years, 1970 to 2007
A day with at least 51.3 mm (2.0 in) of rain is expected about once in 2 years. A day with at least 133.0 mm (5.2 in) of rain is expected about once in 100 years.
Rainfall return levels at Emporium: the daily rain expected about once in a given number of years
Expected about once in
A day with at least
Note
2 years
51.3 mm (2.0 in)
5 years
68.5 mm (2.7 in)
10 years
81.6 mm (3.2 in)
25 years
100.3 mm (3.9 in)
50 years
115.9 mm (4.6 in)
Longer than the 36 years of record
100 years
133.0 mm (5.2 in)
Longer than the 36 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, 36 years of values from 1970 to 2007.
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: 119.1 mm (4.7 in) in 2004; 103.4 mm (4.1 in) in 1975; 93.0 mm (3.7 in) in 1972.
Download the Data
Data for Emporium standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Emporium 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.