Record envelope, standing records and threshold days for Le Roy (USC00364972), Pennsylvania, United States, with 105 years of record.
Key Facts for Le Roy
Le Roy (USC00364972) is a weather station in Pennsylvania, United States at 41.68 latitude and -76.72 longitude, 317 m (1,040 ft) above sea level.
The station reports from 1893 to 1997, 105 years of record.
1,464 records set at Le Roy still stand.
Records are tracked for prcp, snow, snwd: an element needs 30 years of data to be eligible.
Le Roy set a daily record snowfall of 22.9 cm (9.0 in) on 20 December 1995.
About the Station
Location: Pennsylvania, United States, 41.68 latitude, -76.72 longitude.
Elevation: 317 m (1,040 ft).
Period of record: 1893 to 1997, 105 years.
Eligible elements: 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 Le Roy. 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 Le Roy, 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)
n/a
n/a
Feb
15.0 C (59.0 F)
-28.9 C (-20.0 F)
n/a
n/a
Mar
28.3 C (82.9 F)
-23.9 C (-11.0 F)
n/a
n/a
Apr
30.6 C (87.1 F)
-10.6 C (12.9 F)
n/a
n/a
May
33.9 C (93.0 F)
-5.6 C (21.9 F)
n/a
n/a
Jun
35.0 C (95.0 F)
0.6 C (33.1 F)
n/a
n/a
Jul
37.8 C (100.0 F)
6.1 C (43.0 F)
n/a
n/a
Aug
36.1 C (97.0 F)
5.6 C (42.1 F)
n/a
n/a
Sep
34.4 C (93.9 F)
-2.2 C (28.0 F)
n/a
n/a
Oct
29.4 C (84.9 F)
-7.2 C (19.0 F)
n/a
n/a
Nov
23.3 C (73.9 F)
-13.9 C (7.0 F)
n/a
n/a
Dec
17.2 C (63.0 F)
-22.2 C (-8.0 F)
n/a
n/a
Which Years Hold Standing Records
1,464 standing records
Year with most
1,464 records at Le Roy still stand. 1896 holds the most, with 104.
Standing records at Le Roy by the year they were set
Year set
Standing records
1893
46
1894
81
1895
84
1896
104
1897
41
1898
62
1899
78
1900
78
1901
62
1902
41
1903
72
1904
46
1905
46
1906
61
1907
55
1908
48
1909
51
1910
43
1911
71
1912
45
1913
63
1914
59
1915
48
1916
50
1917
29
All-Time Record Progression
2 new records
2 all-time records were set at Le Roy between 22 June 1972 and 23 June 1972. Each dot is a new record.
When Le Roy set new all-time records
Date
Kind
Detail
1972-06-22
Record daily precipitation
Record daily precipitation 117.6 mm (4.6 in)
1972-06-23
Record daily precipitation
Record daily precipitation 130.8 mm (5.1 in)
Wettest Day of Each Month
Jun: 130.8 mm (5.1 in)
The wettest day on record for each calendar month at Le Roy. The most was 130.8 mm (5.1 in) on 23 June 1972.
Record daily precipitation for each month at Le Roy
Month
Record daily precipitation (mm)
Date
Jan
50.8 mm (2.0 in)
7 January 1905
Feb
59.9 mm (2.4 in)
15 February 1984
Mar
97.8 mm (3.9 in)
1 March 1900
Apr
64.8 mm (2.6 in)
24 April 1910
May
80.3 mm (3.2 in)
4 May 1893
Jun
130.8 mm (5.1 in)
23 June 1972
Jul
76.2 mm (3.0 in)
8 July 1915
Aug
109.2 mm (4.3 in)
18 August 1994
Sep
109.2 mm (4.3 in)
26 September 1975
Oct
87.9 mm (3.5 in)
14 October 1955
Nov
71.9 mm (2.8 in)
2 November 1956
Dec
90.2 mm (3.6 in)
15 December 1901
Period of Record Coverage
1893 to 1917
Complete yearUnder 90 percent of days
25 years of record at Le Roy, 1893 to 1917. 1 years have data for under 90 percent of days and are left out of rankings: 1917.
Cooler than the station meanWarmer than the station mean
One stripe for each of 24 complete years at Le Roy, 1893 to 1916. Blue stripes are years cooler than the station's own mean of 8.2 C (46.7 F); red stripes are warmer. The coolest year was 1904, at 6.7 C (44.1 F), and the warmest was 1913, at 9.5 C (49.0 F). The strongest colour marks a difference of 1.5 C (2.7 F).
Annual mean temperature at Le Roy as warming stripes, 1893 to 1916
Year
Annual mean temperature
Difference from the station mean
1893
7.6 C
-0.61 C
1894
8.7 C
+0.49 C
1895
7.5 C
-0.67 C
1896
8.2 C
+0.07 C
1897
8.0 C
-0.16 C
1898
9.1 C
+0.91 C
1899
8.4 C
+0.25 C
1900
9.2 C
+1.06 C
1901
7.8 C
-0.41 C
1902
8.0 C
-0.15 C
1903
7.9 C
-0.23 C
1904
6.7 C
-1.44 C
1905
7.9 C
-0.28 C
1906
8.4 C
+0.21 C
1907
7.4 C
-0.80 C
1908
8.9 C
+0.76 C
1909
8.4 C
+0.22 C
1910
8.3 C
+0.16 C
1911
8.9 C
+0.75 C
1912
7.8 C
-0.37 C
1913
9.5 C
+1.31 C
1914
7.6 C
-0.58 C
1915
8.0 C
-0.15 C
1916
7.9 C
-0.25 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
1893 to 1997
Yearly extremes at Le Roy: the record and the median year
Measure
Record
Year of the record
Median year
Years with a value
Hottest day (TXx)
37.8 C (100.0 F)
1911
33.9 C (93.0 F)
25
Coldest night (TNn)
-28.9 C (-20.0 F)
1899
-23.9 C (-11.0 F)
25
Wettest day (Rx1day)
130.8 mm (5.1 in)
1972
51.3 mm (2.0 in)
79
Wettest five days (Rx5day)
265.2 mm (10.4 in)
1972
81.8 mm (3.2 in)
79
Longest dry spell (CDD)
35 days
1947
16 days
79
Hottest day (TXx)
The hottest day of the year at Le Roy, 1893 to 1997. The record is 37.8 C (100.0 F) in 1911, marked on the chart; the median year is 33.9 C (93.0 F).
Hottest day (TXx) at Le Roy by year
Year
Hottest day (TXx)
1893
35.6 C (96.1 F)
1894
35.6 C (96.1 F)
1895
34.4 C (93.9 F)
1896
33.9 C (93.0 F)
1897
35.0 C (95.0 F)
1898
35.0 C (95.0 F)
1899
33.9 C (93.0 F)
1900
35.0 C (95.0 F)
1901
34.4 C (93.9 F)
1902
31.1 C (88.0 F)
1903
31.7 C (89.1 F)
1904
32.2 C (90.0 F)
1905
33.3 C (91.9 F)
1906
32.2 C (90.0 F)
1907
32.2 C (90.0 F)
1908
33.9 C (93.0 F)
1909
33.9 C (93.0 F)
1910
32.2 C (90.0 F)
1911
37.8 C (100.0 F)
1912
33.9 C (93.0 F)
1913
35.0 C (95.0 F)
1914
32.8 C (91.0 F)
1915
30.6 C (87.1 F)
1916
36.1 C (97.0 F)
1917
35.0 C (95.0 F)
1944
n/a
1945
n/a
1946
n/a
1947
n/a
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
n/a
1962
n/a
1963
n/a
1964
n/a
1965
n/a
1966
n/a
1967
n/a
1968
n/a
1969
n/a
1970
n/a
1971
n/a
1972
n/a
1973
n/a
1974
n/a
1975
n/a
1976
n/a
1977
n/a
1978
n/a
1979
n/a
1980
n/a
1981
n/a
1982
n/a
1983
n/a
1984
n/a
1985
n/a
1986
n/a
1987
n/a
1988
n/a
1989
n/a
1990
n/a
1991
n/a
1992
n/a
1993
n/a
1994
n/a
1995
n/a
1996
n/a
1997
n/a
Coldest night (TNn)
The coldest night of the year at Le Roy, 1893 to 1997. The record is -28.9 C (-20.0 F) in 1899, marked on the chart; the median year is -23.9 C (-11.0 F).
Coldest night (TNn) at Le Roy by year
Year
Coldest night (TNn)
1893
-23.3 C (-9.9 F)
1894
-26.7 C (-16.1 F)
1895
-27.8 C (-18.0 F)
1896
-27.2 C (-17.0 F)
1897
-20.6 C (-5.1 F)
1898
-23.3 C (-9.9 F)
1899
-28.9 C (-20.0 F)
1900
-21.7 C (-7.1 F)
1901
-21.7 C (-7.1 F)
1902
-20.6 C (-5.1 F)
1903
-24.4 C (-11.9 F)
1904
-28.9 C (-20.0 F)
1905
-24.4 C (-11.9 F)
1906
-23.9 C (-11.0 F)
1907
-23.9 C (-11.0 F)
1908
-26.1 C (-15.0 F)
1909
-22.2 C (-8.0 F)
1910
-23.3 C (-9.9 F)
1911
-16.7 C (1.9 F)
1912
-26.7 C (-16.1 F)
1913
-18.9 C (-2.0 F)
1914
-28.3 C (-18.9 F)
1915
-21.7 C (-7.1 F)
1916
-23.9 C (-11.0 F)
1917
-25.6 C (-14.1 F)
1944
n/a
1945
n/a
1946
n/a
1947
n/a
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
n/a
1962
n/a
1963
n/a
1964
n/a
1965
n/a
1966
n/a
1967
n/a
1968
n/a
1969
n/a
1970
n/a
1971
n/a
1972
n/a
1973
n/a
1974
n/a
1975
n/a
1976
n/a
1977
n/a
1978
n/a
1979
n/a
1980
n/a
1981
n/a
1982
n/a
1983
n/a
1984
n/a
1985
n/a
1986
n/a
1987
n/a
1988
n/a
1989
n/a
1990
n/a
1991
n/a
1992
n/a
1993
n/a
1994
n/a
1995
n/a
1996
n/a
1997
n/a
Wettest day (Rx1day)
The wettest day of the year at Le Roy, 1893 to 1997. The record is 130.8 mm (5.1 in) in 1972, marked on the chart; the median year is 51.3 mm (2.0 in).
Wettest day (Rx1day) at Le Roy by year
Year
Wettest day (Rx1day)
1893
80.3 mm (3.2 in)
1894
56.4 mm (2.2 in)
1895
38.1 mm (1.5 in)
1896
53.3 mm (2.1 in)
1897
39.9 mm (1.6 in)
1898
51.1 mm (2.0 in)
1899
46.0 mm (1.8 in)
1900
97.8 mm (3.9 in)
1901
90.2 mm (3.6 in)
1902
46.0 mm (1.8 in)
1903
41.1 mm (1.6 in)
1904
35.6 mm (1.4 in)
1905
71.6 mm (2.8 in)
1906
62.5 mm (2.5 in)
1907
30.5 mm (1.2 in)
1908
44.5 mm (1.8 in)
1909
52.1 mm (2.1 in)
1910
64.8 mm (2.6 in)
1911
62.0 mm (2.4 in)
1912
76.2 mm (3.0 in)
1913
63.5 mm (2.5 in)
1914
50.8 mm (2.0 in)
1915
76.2 mm (3.0 in)
1916
53.8 mm (2.1 in)
1917
39.4 mm (1.6 in)
1944
43.2 mm (1.7 in)
1945
46.5 mm (1.8 in)
1946
73.7 mm (2.9 in)
1947
58.4 mm (2.3 in)
1948
44.5 mm (1.8 in)
1949
58.4 mm (2.3 in)
1950
66.0 mm (2.6 in)
1951
49.5 mm (1.9 in)
1952
62.0 mm (2.4 in)
1953
46.5 mm (1.8 in)
1954
51.3 mm (2.0 in)
1955
87.9 mm (3.5 in)
1956
71.9 mm (2.8 in)
1957
32.3 mm (1.3 in)
1958
44.7 mm (1.8 in)
1959
50.3 mm (2.0 in)
1960
58.4 mm (2.3 in)
1961
44.2 mm (1.7 in)
1962
49.5 mm (1.9 in)
1963
52.1 mm (2.1 in)
1964
55.1 mm (2.2 in)
1965
31.8 mm (1.3 in)
1966
46.5 mm (1.8 in)
1967
62.0 mm (2.4 in)
1968
57.9 mm (2.3 in)
1969
51.3 mm (2.0 in)
1970
73.9 mm (2.9 in)
1971
55.9 mm (2.2 in)
1972
130.8 mm (5.1 in)
1973
49.8 mm (2.0 in)
1974
48.3 mm (1.9 in)
1975
109.2 mm (4.3 in)
1976
44.7 mm (1.8 in)
1977
56.6 mm (2.2 in)
1978
50.0 mm (2.0 in)
1979
40.9 mm (1.6 in)
1980
49.0 mm (1.9 in)
1981
46.5 mm (1.8 in)
1982
45.0 mm (1.8 in)
1983
60.7 mm (2.4 in)
1984
59.9 mm (2.4 in)
1985
30.5 mm (1.2 in)
1986
46.0 mm (1.8 in)
1987
45.2 mm (1.8 in)
1988
66.0 mm (2.6 in)
1989
53.3 mm (2.1 in)
1990
63.0 mm (2.5 in)
1991
45.7 mm (1.8 in)
1992
47.5 mm (1.9 in)
1993
46.0 mm (1.8 in)
1994
109.2 mm (4.3 in)
1995
62.2 mm (2.4 in)
1996
24.4 mm (1.0 in)
1997
15.7 mm (0.6 in)
Wettest five days (Rx5day)
The wettest five days of the year at Le Roy, 1893 to 1997. The record is 265.2 mm (10.4 in) in 1972, marked on the chart; the median year is 81.8 mm (3.2 in).
Wettest five days (Rx5day) at Le Roy by year
Year
Wettest five days (Rx5day)
1893
100.8 mm (4.0 in)
1894
126.5 mm (5.0 in)
1895
75.5 mm (3.0 in)
1896
104.4 mm (4.1 in)
1897
65.3 mm (2.6 in)
1898
87.7 mm (3.5 in)
1899
85.4 mm (3.4 in)
1900
104.4 mm (4.1 in)
1901
128.8 mm (5.1 in)
1902
80.0 mm (3.1 in)
1903
83.8 mm (3.3 in)
1904
73.7 mm (2.9 in)
1905
107.4 mm (4.2 in)
1906
100.8 mm (4.0 in)
1907
81.1 mm (3.2 in)
1908
51.6 mm (2.0 in)
1909
90.0 mm (3.5 in)
1910
103.1 mm (4.1 in)
1911
76.5 mm (3.0 in)
1912
99.8 mm (3.9 in)
1913
81.8 mm (3.2 in)
1914
68.1 mm (2.7 in)
1915
90.8 mm (3.6 in)
1916
64.3 mm (2.5 in)
1917
43.7 mm (1.7 in)
1944
45.2 mm (1.8 in)
1945
81.5 mm (3.2 in)
1946
129.1 mm (5.1 in)
1947
90.2 mm (3.6 in)
1948
71.2 mm (2.8 in)
1949
85.2 mm (3.4 in)
1950
94.4 mm (3.7 in)
1951
58.1 mm (2.3 in)
1952
115.4 mm (4.5 in)
1953
61.0 mm (2.4 in)
1954
82.3 mm (3.2 in)
1955
133.1 mm (5.2 in)
1956
77.8 mm (3.1 in)
1957
56.9 mm (2.2 in)
1958
75.1 mm (3.0 in)
1959
79.3 mm (3.1 in)
1960
100.6 mm (4.0 in)
1961
49.3 mm (1.9 in)
1962
62.3 mm (2.5 in)
1963
88.0 mm (3.5 in)
1964
87.4 mm (3.4 in)
1965
45.1 mm (1.8 in)
1966
57.1 mm (2.2 in)
1967
82.0 mm (3.2 in)
1968
60.2 mm (2.4 in)
1969
67.5 mm (2.7 in)
1970
91.7 mm (3.6 in)
1971
82.6 mm (3.3 in)
1972
265.2 mm (10.4 in)
1973
88.9 mm (3.5 in)
1974
83.9 mm (3.3 in)
1975
201.9 mm (7.9 in)
1976
89.4 mm (3.5 in)
1977
75.9 mm (3.0 in)
1978
74.4 mm (2.9 in)
1979
68.7 mm (2.7 in)
1980
55.4 mm (2.2 in)
1981
72.2 mm (2.8 in)
1982
87.7 mm (3.5 in)
1983
106.9 mm (4.2 in)
1984
91.9 mm (3.6 in)
1985
61.7 mm (2.4 in)
1986
70.7 mm (2.8 in)
1987
72.6 mm (2.9 in)
1988
71.9 mm (2.8 in)
1989
87.6 mm (3.4 in)
1990
99.5 mm (3.9 in)
1991
66.1 mm (2.6 in)
1992
75.0 mm (3.0 in)
1993
67.8 mm (2.7 in)
1994
159.9 mm (6.3 in)
1995
85.1 mm (3.4 in)
1996
59.1 mm (2.3 in)
1997
24.1 mm (0.9 in)
Longest dry spell (CDD)
The longest dry spell of the year at Le Roy, 1893 to 1997. The record is 35 days in 1947, marked on the chart; the median year is 16 days.
Longest dry spell (CDD) at Le Roy by year
Year
Longest dry spell (CDD)
1893
14 days
1894
21 days
1895
19 days
1896
12 days
1897
12 days
1898
16 days
1899
14 days
1900
23 days
1901
15 days
1902
14 days
1903
10 days
1904
15 days
1905
17 days
1906
10 days
1907
14 days
1908
21 days
1909
21 days
1910
17 days
1911
10 days
1912
12 days
1913
18 days
1914
21 days
1915
13 days
1916
12 days
1917
13 days
1944
12 days
1945
11 days
1946
12 days
1947
35 days
1948
17 days
1949
19 days
1950
16 days
1951
16 days
1952
13 days
1953
25 days
1954
19 days
1955
30 days
1956
17 days
1957
16 days
1958
23 days
1959
20 days
1960
15 days
1961
18 days
1962
16 days
1963
23 days
1964
17 days
1965
14 days
1966
17 days
1967
27 days
1968
29 days
1969
21 days
1970
17 days
1971
16 days
1972
17 days
1973
15 days
1974
17 days
1975
15 days
1976
23 days
1977
15 days
1978
18 days
1979
17 days
1980
15 days
1981
14 days
1982
12 days
1983
16 days
1984
15 days
1985
18 days
1986
18 days
1987
23 days
1988
26 days
1989
16 days
1990
12 days
1991
23 days
1992
16 days
1993
13 days
1994
13 days
1995
14 days
1996
5 days
1997
6 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
24 years with a frost
Across 24 years with a frost, the median last spring frost at Le Roy falls on 3 May and the median first autumn frost on 9 October, which leaves a median of 158 days between them.
Frost dates and growing season at Le Roy
Measure
Median, all years
Earliest period
Recent period (1893 to 1916)
Recent against earliest
Fitted trend
Last spring frost
3 May
n/a
3 May
n/a
n/a
First autumn frost
9 October
n/a
9 October
n/a
n/a
Growing days
158 days
n/a
158 days
n/a
n/a
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
72 years, 1893 to 1995
A day with at least 53.0 mm (2.1 in) of rain is expected about once in 2 years. A day with at least 125.7 mm (4.9 in) of rain is expected about once in 100 years.
Rainfall return levels at Le Roy: the daily rain expected about once in a given number of years
Expected about once in
A day with at least
Note
2 years
53.0 mm (2.1 in)
5 years
68.0 mm (2.7 in)
10 years
79.6 mm (3.1 in)
25 years
96.2 mm (3.8 in)
50 years
110.2 mm (4.3 in)
100 years
125.7 mm (4.9 in)
Longer than the 72 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, 72 years of values from 1893 to 1995.
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: 130.8 mm (5.1 in) in 1972; 109.2 mm (4.3 in) in 1975; 109.2 mm (4.3 in) in 1994.
Download the Data
Data for Le Roy standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Le Roy 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.