Record envelope, standing records and threshold days for Raystown Lake 2 (USC00367312), Pennsylvania, United States, with 39 years of record.
Key Facts for Raystown Lake 2
Raystown Lake 2 (USC00367312) is a weather station in Pennsylvania, United States at 40.38 latitude and -78.08 longitude, 305 m (1,000 ft) above sea level.
The station reports from 1974 to 2012, 39 years of record.
1,464 records set at Raystown Lake 2 still stand.
Records are tracked for tmax, tmin, prcp, snow, snwd: an element needs 30 years of data to be eligible.
Raystown Lake 2 set a daily record precipitation of 49.8 mm (2.0 in) on 28 September 2012.
About the Station
Location: Pennsylvania, United States, 40.38 latitude, -78.08 longitude.
Elevation: 305 m (1,000 ft).
Period of record: 1974 to 2012, 39 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 Raystown Lake 2. 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 Raystown Lake 2, with 2026 drawn through them
Month
Highest record high
Lowest record low
2026 highest maximum
2026 lowest minimum
Jan
21.1 C (70.0 F)
-26.1 C (-15.0 F)
n/a
n/a
Feb
26.1 C (79.0 F)
-24.4 C (-11.9 F)
n/a
n/a
Mar
28.9 C (84.0 F)
-17.8 C (0.0 F)
n/a
n/a
Apr
32.8 C (91.0 F)
-9.4 C (15.1 F)
n/a
n/a
May
33.9 C (93.0 F)
-3.9 C (25.0 F)
n/a
n/a
Jun
36.1 C (97.0 F)
0.6 C (33.1 F)
n/a
n/a
Jul
40.0 C (104.0 F)
4.4 C (39.9 F)
n/a
n/a
Aug
37.2 C (99.0 F)
2.8 C (37.0 F)
n/a
n/a
Sep
35.6 C (96.1 F)
-5.6 C (21.9 F)
n/a
n/a
Oct
31.7 C (89.1 F)
-6.7 C (19.9 F)
n/a
n/a
Nov
27.8 C (82.0 F)
-12.2 C (10.0 F)
n/a
n/a
Dec
23.3 C (73.9 F)
-21.7 C (-7.1 F)
n/a
n/a
Which Years Hold Standing Records
1,464 standing records
Year with most
1,464 records at Raystown Lake 2 still stand. 1976 holds the most, with 63.
Standing records at Raystown Lake 2 by the year they were set
Year set
Standing records
1974
30
1975
38
1976
63
1977
57
1978
40
1979
62
1980
34
1981
29
1982
51
1983
31
1984
36
1985
30
1986
34
1987
30
1988
55
1989
55
1990
57
1991
52
1992
38
1993
40
1994
30
1995
30
1996
36
1997
29
1998
41
1999
15
2000
32
2001
31
2002
55
2003
25
2004
29
2005
37
2006
34
2007
41
2008
19
2009
17
2010
26
2011
34
2012
41
All-Time Record Progression
1 new records
1 all-time records were set at Raystown Lake 2 between 22 July 2011 and 22 July 2011. Each dot is a new record.
When Raystown Lake 2 set new all-time records
Date
Kind
Detail
2011-07-22
Record high minimum temperature
Record high minimum temperature 26.1 C (79.0 F)
Wettest Day of Each Month
Sep: 115.6 mm (4.6 in)
The wettest day on record for each calendar month at Raystown Lake 2. The most was 115.6 mm (4.6 in) on 7 September 1996.
Record daily precipitation for each month at Raystown Lake 2
Month
Record daily precipitation (mm)
Date
Jan
69.3 mm (2.7 in)
19 January 1996
Feb
49.8 mm (2.0 in)
24 February 1998
Mar
52.3 mm (2.1 in)
5 March 2008
Apr
46.7 mm (1.8 in)
3 April 1977
May
76.7 mm (3.0 in)
29 May 2009
Jun
57.7 mm (2.3 in)
9 June 1993
Jul
65.5 mm (2.6 in)
21 July 1989
Aug
83.1 mm (3.3 in)
16 August 1999
Sep
115.6 mm (4.6 in)
7 September 1996
Oct
94.5 mm (3.7 in)
21 October 1995
Nov
86.9 mm (3.4 in)
8 November 1997
Dec
66.5 mm (2.6 in)
11 December 1992
Period of Record Coverage
1974 to 2012
Complete yearUnder 90 percent of days
39 years of record at Raystown Lake 2, 1974 to 2012. 6 years have data for under 90 percent of days and are left out of rankings: 1974, 1999, 2000, 2001, 2010, 2012.
Cooler than the station meanWarmer than the station mean
One stripe for each of 32 complete years at Raystown Lake 2, 1975 to 2011. Blue stripes are years cooler than the station's own mean of 10.2 C (50.4 F); red stripes are warmer. The coolest year was 1978, at 8.8 C (47.8 F), and the warmest was 1998, at 11.8 C (53.2 F). The strongest colour marks a difference of 1.6 C (2.9 F).
Annual mean temperature at Raystown Lake 2 as warming stripes, 1975 to 2011
Year
Annual mean temperature
Difference from the station mean
1975
10.3 C
+0.10 C
1976
9.2 C
-1.09 C
1977
9.6 C
-0.68 C
1978
8.8 C
-1.48 C
1979
9.3 C
-0.92 C
1980
9.3 C
-0.98 C
1981
9.7 C
-0.53 C
1982
9.8 C
-0.41 C
1983
10.5 C
+0.23 C
1984
10.3 C
+0.04 C
1985
10.5 C
+0.22 C
1986
10.4 C
+0.18 C
1987
10.6 C
+0.36 C
1988
9.9 C
-0.32 C
1989
9.5 C
-0.76 C
1990
10.9 C
+0.70 C
1991
11.1 C
+0.84 C
1992
9.3 C
-0.93 C
1993
9.8 C
-0.42 C
1994
9.9 C
-0.39 C
1995
9.8 C
-0.48 C
1996
9.6 C
-0.60 C
1997
9.8 C
-0.46 C
1998
11.8 C
+1.55 C
2002
11.5 C
+1.21 C
2004
10.7 C
+0.43 C
2005
10.9 C
+0.69 C
2006
11.8 C
+1.53 C
2007
11.3 C
+1.01 C
2008
10.6 C
+0.32 C
2009
10.2 C
-0.07 C
2011
11.5 C
+1.24 C
The annual mean temperature here has risen by 0.5 C (0.2 to 0.7) per decade over 1975 to 2011. In Fahrenheit: 0.8 F (0.4 to 1.2) 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 Raystown Lake 2
Measure
Per decade (C)
Per decade (F)
Period
Complete years
Reading
Annual mean temperature
0.5 C (0.2 to 0.7) per decade
0.8 F (0.4 to 1.2) per decade
1975 to 2011
32
Rise
Mean daily maximum
0.3 C (0.1 to 0.5) per decade
0.5 F (0.1 to 0.9) per decade
1975 to 2011
32
Rise
Mean daily minimum
0.6 C (0.4 to 0.9) per decade
1.1 F (0.7 to 1.6) per decade
1975 to 2011
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
1974 to 2012
Yearly extremes at Raystown Lake 2: the record and the median year
Measure
Record
Year of the record
Median year
Years with a value
Hottest day (TXx)
40.0 C (104.0 F)
1988
35.0 C (95.0 F)
39
Coldest night (TNn)
-26.1 C (-15.0 F)
1994
-17.8 C (0.0 F)
39
Wettest day (Rx1day)
115.6 mm (4.6 in)
1996
52.3 mm (2.1 in)
39
Wettest five days (Rx5day)
168.9 mm (6.6 in)
2011
83.8 mm (3.3 in)
39
Longest dry spell (CDD)
31 days
1981
17 days
39
Hottest day (TXx)
The hottest day of the year at Raystown Lake 2, 1974 to 2012. The record is 40.0 C (104.0 F) in 1988, marked on the chart; the median year is 35.0 C (95.0 F).
Hottest day (TXx) at Raystown Lake 2 by year
Year
Hottest day (TXx)
1974
34.4 C (93.9 F)
1975
36.1 C (97.0 F)
1976
32.8 C (91.0 F)
1977
35.6 C (96.1 F)
1978
33.9 C (93.0 F)
1979
32.8 C (91.0 F)
1980
35.6 C (96.1 F)
1981
33.9 C (93.0 F)
1982
35.6 C (96.1 F)
1983
35.6 C (96.1 F)
1984
35.0 C (95.0 F)
1985
33.9 C (93.0 F)
1986
34.4 C (93.9 F)
1987
35.6 C (96.1 F)
1988
40.0 C (104.0 F)
1989
32.8 C (91.0 F)
1990
36.7 C (98.1 F)
1991
36.1 C (97.0 F)
1992
32.2 C (90.0 F)
1993
36.1 C (97.0 F)
1994
34.4 C (93.9 F)
1995
36.1 C (97.0 F)
1996
33.9 C (93.0 F)
1997
35.0 C (95.0 F)
1998
34.4 C (93.9 F)
1999
37.2 C (99.0 F)
2000
35.0 C (95.0 F)
2001
35.6 C (96.1 F)
2002
36.1 C (97.0 F)
2003
32.2 C (90.0 F)
2004
32.2 C (90.0 F)
2005
35.6 C (96.1 F)
2006
34.4 C (93.9 F)
2007
36.1 C (97.0 F)
2008
33.9 C (93.0 F)
2009
32.8 C (91.0 F)
2010
36.7 C (98.1 F)
2011
40.0 C (104.0 F)
2012
37.8 C (100.0 F)
Coldest night (TNn)
The coldest night of the year at Raystown Lake 2, 1974 to 2012. The record is -26.1 C (-15.0 F) in 1994, marked on the chart; the median year is -17.8 C (0.0 F).
Coldest night (TNn) at Raystown Lake 2 by year
Year
Coldest night (TNn)
1974
-11.1 C (12.0 F)
1975
-17.8 C (0.0 F)
1976
-18.3 C (-0.9 F)
1977
-25.6 C (-14.1 F)
1978
-24.4 C (-11.9 F)
1979
-24.4 C (-11.9 F)
1980
-16.7 C (1.9 F)
1981
-20.6 C (-5.1 F)
1982
-25.6 C (-14.1 F)
1983
-21.7 C (-7.1 F)
1984
-23.9 C (-11.0 F)
1985
-23.9 C (-11.0 F)
1986
-16.7 C (1.9 F)
1987
-17.8 C (0.0 F)
1988
-17.2 C (1.0 F)
1989
-20.6 C (-5.1 F)
1990
-16.7 C (1.9 F)
1991
-14.4 C (6.1 F)
1992
-16.1 C (3.0 F)
1993
-17.8 C (0.0 F)
1994
-26.1 C (-15.0 F)
1995
-16.7 C (1.9 F)
1996
-19.4 C (-2.9 F)
1997
-17.8 C (0.0 F)
1998
-13.9 C (7.0 F)
1999
-17.8 C (0.0 F)
2000
-14.4 C (6.1 F)
2001
-12.8 C (9.0 F)
2002
-11.1 C (12.0 F)
2003
-16.1 C (3.0 F)
2004
-20.0 C (-4.0 F)
2005
-16.7 C (1.9 F)
2006
-14.4 C (6.1 F)
2007
-18.9 C (-2.0 F)
2008
-16.1 C (3.0 F)
2009
-19.4 C (-2.9 F)
2010
-16.7 C (1.9 F)
2011
-21.1 C (-6.0 F)
2012
-15.0 C (5.0 F)
Wettest day (Rx1day)
The wettest day of the year at Raystown Lake 2, 1974 to 2012. The record is 115.6 mm (4.6 in) in 1996, marked on the chart; the median year is 52.3 mm (2.1 in).
Wettest day (Rx1day) at Raystown Lake 2 by year
Year
Wettest day (Rx1day)
1974
32.0 mm (1.3 in)
1975
53.8 mm (2.1 in)
1976
51.6 mm (2.0 in)
1977
46.7 mm (1.8 in)
1978
49.0 mm (1.9 in)
1979
68.1 mm (2.7 in)
1980
47.5 mm (1.9 in)
1981
39.4 mm (1.6 in)
1982
33.0 mm (1.3 in)
1983
53.1 mm (2.1 in)
1984
73.9 mm (2.9 in)
1985
59.4 mm (2.3 in)
1986
47.0 mm (1.9 in)
1987
44.7 mm (1.8 in)
1988
39.9 mm (1.6 in)
1989
65.5 mm (2.6 in)
1990
38.6 mm (1.5 in)
1991
31.5 mm (1.2 in)
1992
66.5 mm (2.6 in)
1993
57.7 mm (2.3 in)
1994
76.7 mm (3.0 in)
1995
94.5 mm (3.7 in)
1996
115.6 mm (4.6 in)
1997
86.9 mm (3.4 in)
1998
49.8 mm (2.0 in)
1999
83.1 mm (3.3 in)
2000
53.8 mm (2.1 in)
2001
46.7 mm (1.8 in)
2002
46.0 mm (1.8 in)
2003
44.5 mm (1.8 in)
2004
115.6 mm (4.6 in)
2005
70.9 mm (2.8 in)
2006
51.1 mm (2.0 in)
2007
80.5 mm (3.2 in)
2008
52.3 mm (2.1 in)
2009
76.7 mm (3.0 in)
2010
48.3 mm (1.9 in)
2011
113.0 mm (4.4 in)
2012
49.8 mm (2.0 in)
Wettest five days (Rx5day)
The wettest five days of the year at Raystown Lake 2, 1974 to 2012. The record is 168.9 mm (6.6 in) in 2011, marked on the chart; the median year is 83.8 mm (3.3 in).
Wettest five days (Rx5day) at Raystown Lake 2 by year
Year
Wettest five days (Rx5day)
1974
53.9 mm (2.1 in)
1975
117.3 mm (4.6 in)
1976
98.1 mm (3.9 in)
1977
72.9 mm (2.9 in)
1978
102.4 mm (4.0 in)
1979
85.3 mm (3.4 in)
1980
53.2 mm (2.1 in)
1981
86.2 mm (3.4 in)
1982
61.5 mm (2.4 in)
1983
89.6 mm (3.5 in)
1984
88.9 mm (3.5 in)
1985
81.2 mm (3.2 in)
1986
65.2 mm (2.6 in)
1987
94.5 mm (3.7 in)
1988
87.4 mm (3.4 in)
1989
111.9 mm (4.4 in)
1990
70.0 mm (2.8 in)
1991
54.3 mm (2.1 in)
1992
91.4 mm (3.6 in)
1993
71.9 mm (2.8 in)
1994
100.6 mm (4.0 in)
1995
94.8 mm (3.7 in)
1996
156.5 mm (6.2 in)
1997
113.3 mm (4.5 in)
1998
62.5 mm (2.5 in)
1999
83.1 mm (3.3 in)
2000
77.8 mm (3.1 in)
2001
58.4 mm (2.3 in)
2002
76.4 mm (3.0 in)
2003
89.7 mm (3.5 in)
2004
132.2 mm (5.2 in)
2005
83.8 mm (3.3 in)
2006
79.2 mm (3.1 in)
2007
127.1 mm (5.0 in)
2008
65.3 mm (2.6 in)
2009
81.5 mm (3.2 in)
2010
70.1 mm (2.8 in)
2011
168.9 mm (6.6 in)
2012
76.7 mm (3.0 in)
Longest dry spell (CDD)
The longest dry spell of the year at Raystown Lake 2, 1974 to 2012. The record is 31 days in 1981, marked on the chart; the median year is 17 days.
Longest dry spell (CDD) at Raystown Lake 2 by year
Year
Longest dry spell (CDD)
1974
15 days
1975
17 days
1976
18 days
1977
17 days
1978
17 days
1979
15 days
1980
21 days
1981
31 days
1982
13 days
1983
15 days
1984
11 days
1985
26 days
1986
19 days
1987
23 days
1988
23 days
1989
24 days
1990
14 days
1991
25 days
1992
18 days
1993
11 days
1994
13 days
1995
25 days
1996
15 days
1997
13 days
1998
15 days
1999
20 days
2000
11 days
2001
21 days
2002
12 days
2003
15 days
2004
17 days
2005
19 days
2006
17 days
2007
11 days
2008
19 days
2009
22 days
2010
17 days
2011
16 days
2012
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
32 years with a frost
Across 32 years with a frost, the median last spring frost at Raystown Lake 2 falls on 28 April and the median first autumn frost on 18 October, which leaves a median of 170 days between them.
Fitted over all years, the growing season changes by +11.7 days per decade at this station.
Frost dates and growing season at Raystown Lake 2
Measure
Median, all years
Earliest period
Recent period (1977 to 2011)
Recent against earliest
Fitted trend
Last spring frost
28 April
n/a
28 April
n/a
-7.4 days per decade
First autumn frost
18 October
n/a
17 October
n/a
+4.2 days per decade
Growing days
170 days
n/a
170 days
n/a
+11.7 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
34 years, 1975 to 2011
A day with at least 55.7 mm (2.2 in) of rain is expected about once in 2 years. A day with at least 151.1 mm (5.9 in) of rain is expected about once in 100 years.
Rainfall return levels at Raystown Lake 2: the daily rain expected about once in a given number of years
Expected about once in
A day with at least
Note
2 years
55.7 mm (2.2 in)
5 years
75.4 mm (3.0 in)
10 years
90.5 mm (3.6 in)
25 years
112.3 mm (4.4 in)
50 years
130.7 mm (5.1 in)
Longer than the 34 years of record
100 years
151.1 mm (5.9 in)
Longer than the 34 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, 34 years of values from 1975 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: 115.6 mm (4.6 in) in 1996; 115.6 mm (4.6 in) in 2004; 113.0 mm (4.4 in) in 2011.
Download the Data
Data for Raystown Lake 2 standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Raystown Lake 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.