Record envelope, standing records and threshold days for Meadville 1 S (USC00365606), Pennsylvania, United States, with 72 years of record.
Key Facts for Meadville 1 S
Meadville 1 S (USC00365606) is a weather station in Pennsylvania, United States at 41.63 latitude and -80.17 longitude, 325 m (1,065 ft) above sea level.
The station reports from 1928 to 1999, 72 years of record.
1,464 records set at Meadville 1 S still stand.
Records are tracked for tmax, tmin, prcp, snow, snwd: an element needs 30 years of data to be eligible.
Meadville 1 S set a daily record high minimum temperature of 22.2 C (72.0 F) on 6 July 1999.
About the Station
Location: Pennsylvania, United States, 41.63 latitude, -80.17 longitude.
Elevation: 325 m (1,065 ft).
Period of record: 1928 to 1999, 72 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 Meadville 1 S. 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 Meadville 1 S, with 2026 drawn through them
Month
Highest record high
Lowest record low
2026 highest maximum
2026 lowest minimum
Jan
22.2 C (72.0 F)
-30.6 C (-23.1 F)
n/a
n/a
Feb
22.2 C (72.0 F)
-30.0 C (-22.0 F)
n/a
n/a
Mar
27.8 C (82.0 F)
-24.4 C (-11.9 F)
n/a
n/a
Apr
33.3 C (91.9 F)
-15.0 C (5.0 F)
n/a
n/a
May
34.4 C (93.9 F)
-6.1 C (21.0 F)
n/a
n/a
Jun
37.2 C (99.0 F)
-1.7 C (28.9 F)
n/a
n/a
Jul
40.0 C (104.0 F)
3.3 C (37.9 F)
n/a
n/a
Aug
36.7 C (98.1 F)
0.6 C (33.1 F)
n/a
n/a
Sep
36.7 C (98.1 F)
-3.3 C (26.1 F)
n/a
n/a
Oct
31.1 C (88.0 F)
-8.3 C (17.1 F)
n/a
n/a
Nov
27.2 C (81.0 F)
-18.3 C (-0.9 F)
n/a
n/a
Dec
22.2 C (72.0 F)
-28.3 C (-18.9 F)
n/a
n/a
Which Years Hold Standing Records
1,464 standing records
Year with most
1,464 records at Meadville 1 S still stand. 1931 holds the most, with 52.
Standing records at Meadville 1 S by the year they were set
Year set
Standing records
1928
13
1929
40
1930
47
1931
52
1932
35
1933
33
1934
43
1935
26
1936
40
1937
22
1938
19
1939
16
1940
33
1941
21
1942
18
1943
17
1944
15
1945
16
1946
18
1947
27
1948
21
1949
23
1950
33
1951
34
1952
17
1953
16
1954
30
1955
14
1956
22
1957
18
1958
15
1959
16
1960
17
1961
15
1962
18
1963
37
1964
17
1965
22
1966
21
1967
17
1968
9
1969
12
1970
11
1971
15
1972
19
1973
19
1974
17
1975
12
1976
25
1977
26
1978
10
1979
23
1980
14
1981
6
1982
26
1983
13
1984
20
1985
11
1986
16
1987
8
1988
27
1989
17
1990
22
1991
21
1992
8
1993
14
1994
10
1995
10
1996
20
1997
10
1998
12
1999
7
All-Time Record Progression
7 new records
7 all-time records were set at Meadville 1 S between 1 October 1959 and 19 July 1996. Each dot is a new record.
When Meadville 1 S set new all-time records
Date
Kind
Detail
1959-10-01
Record daily precipitation
Record daily precipitation 102.1 mm (4.0 in)
1963-01-25
Record low maximum temperature
Record low maximum temperature -17.8 C (0.0 F)
1971-08-21
Record daily precipitation
Record daily precipitation 107.4 mm (4.2 in)
1977-01-18
Record low maximum temperature
Record low maximum temperature -19.4 C (-2.9 F)
1985-01-21
Record low maximum temperature
Record low maximum temperature -20.0 C (-4.0 F)
1994-01-20
Record low maximum temperature
Record low maximum temperature -21.1 C (-6.0 F)
1996-07-19
Record daily precipitation
Record daily precipitation 113.8 mm (4.5 in)
Wettest Day of Each Month
Jul: 113.8 mm (4.5 in)
The wettest day on record for each calendar month at Meadville 1 S. The most was 113.8 mm (4.5 in) on 19 July 1996.
Record daily precipitation for each month at Meadville 1 S
Month
Record daily precipitation (mm)
Date
Jan
77.2 mm (3.0 in)
13 January 1990
Feb
58.9 mm (2.3 in)
17 February 1976
Mar
79.2 mm (3.1 in)
22 March 1948
Apr
63.0 mm (2.5 in)
26 April 1937
May
63.8 mm (2.5 in)
16 May 1942
Jun
104.6 mm (4.1 in)
9 June 1981
Jul
113.8 mm (4.5 in)
19 July 1996
Aug
107.4 mm (4.2 in)
21 August 1971
Sep
70.1 mm (2.8 in)
14 September 1979
Oct
102.1 mm (4.0 in)
1 October 1959
Nov
75.7 mm (3.0 in)
5 November 1985
Dec
51.8 mm (2.0 in)
28 December 1968
Period of Record Coverage
1928 to 1999
Complete yearUnder 90 percent of days
72 years of record at Meadville 1 S, 1928 to 1999. 6 years have data for under 90 percent of days and are left out of rankings: 1928, 1933, 1937, 1945, 1967, 1999.
Cooler than the station meanWarmer than the station mean
One stripe for each of 63 complete years at Meadville 1 S, 1930 to 1998. Blue stripes are years cooler than the station's own mean of 8.7 C (47.6 F); red stripes are warmer. The coolest year was 1978, at 7.4 C (45.3 F), and the warmest was 1931, at 11.5 C (52.7 F). The strongest colour marks a difference of 2.8 C (5.0 F).
Annual mean temperature at Meadville 1 S as warming stripes, 1930 to 1998
Year
Annual mean temperature
Difference from the station mean
1930
10.3 C
+1.57 C
1931
11.5 C
+2.79 C
1932
10.3 C
+1.64 C
1934
10.0 C
+1.32 C
1935
9.8 C
+1.13 C
1936
9.7 C
+0.96 C
1939
9.2 C
+0.48 C
1940
7.6 C
-1.08 C
1941
9.2 C
+0.49 C
1942
9.0 C
+0.28 C
1943
8.2 C
-0.50 C
1944
8.9 C
+0.18 C
1945
8.7 C
+0.03 C
1946
9.5 C
+0.79 C
1947
8.9 C
+0.17 C
1948
9.0 C
+0.32 C
1949
9.9 C
+1.23 C
1950
8.1 C
-0.56 C
1951
8.4 C
-0.32 C
1952
9.0 C
+0.35 C
1953
9.5 C
+0.77 C
1954
8.8 C
+0.11 C
1955
9.0 C
+0.30 C
1956
8.4 C
-0.28 C
1957
8.7 C
+0.03 C
1958
7.4 C
-1.28 C
1959
8.9 C
+0.19 C
1960
8.0 C
-0.72 C
1961
8.4 C
-0.27 C
1962
8.0 C
-0.68 C
1963
7.4 C
-1.27 C
1964
8.6 C
-0.09 C
1965
8.3 C
-0.44 C
1966
8.1 C
-0.64 C
1968
8.2 C
-0.50 C
1969
8.2 C
-0.45 C
1970
8.1 C
-0.57 C
1971
8.2 C
-0.49 C
1974
8.3 C
-0.36 C
1975
9.0 C
+0.35 C
1976
7.6 C
-1.05 C
1977
8.3 C
-0.38 C
1978
7.4 C
-1.30 C
1979
8.0 C
-0.65 C
1980
7.8 C
-0.86 C
1981
8.1 C
-0.55 C
1982
8.4 C
-0.29 C
1983
8.9 C
+0.21 C
1984
8.3 C
-0.35 C
1985
8.3 C
-0.37 C
1986
8.8 C
+0.06 C
1987
9.0 C
+0.28 C
1988
8.1 C
-0.63 C
1989
7.9 C
-0.82 C
1990
9.7 C
+1.04 C
1991
9.9 C
+1.22 C
1992
8.5 C
-0.21 C
1993
8.3 C
-0.36 C
1994
8.2 C
-0.48 C
1995
8.5 C
-0.19 C
1996
8.0 C
-0.65 C
1997
8.2 C
-0.50 C
1998
10.5 C
+1.85 C
The annual mean temperature here has fallen by 0.2 C (0.1 to 0.3) per decade over 1930 to 1998. In Fahrenheit: 0.3 F (0.1 to 0.5) per decade. The slope is a straight line fitted to 63 complete years; the brackets give its 95 percent interval.
Fitted temperature trends per decade at Meadville 1 S
Measure
Per decade (C)
Per decade (F)
Period
Complete years
Reading
Annual mean temperature
-0.2 C (-0.3 to -0.1) per decade
-0.3 F (-0.5 to -0.1) per decade
1930 to 1998
63
Fall
Mean daily maximum
-0.2 C (-0.3 to -0.1) per decade
-0.4 F (-0.6 to -0.2) per decade
1930 to 1998
63
Fall
Mean daily minimum
-0.08 C (-0.19 to 0.02) per decade
-0.15 F (-0.34 to 0.03) per decade
1930 to 1998
63
Not clearly different from zero
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
1928 to 1999
Yearly extremes at Meadville 1 S: 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)
1936
33.3 C (91.9 F)
72
Coldest night (TNn)
-30.6 C (-23.1 F)
1948
-23.3 C (-9.9 F)
72
Wettest day (Rx1day)
113.8 mm (4.5 in)
1996
53.2 mm (2.1 in)
72
Wettest five days (Rx5day)
146.8 mm (5.8 in)
1949
78.3 mm (3.1 in)
72
Longest dry spell (CDD)
34 days
1953
14 days
72
Hottest day (TXx)
The hottest day of the year at Meadville 1 S, 1928 to 1999. The record is 40.0 C (104.0 F) in 1936, marked on the chart; the median year is 33.3 C (91.9 F).
Hottest day (TXx) at Meadville 1 S by year
Year
Hottest day (TXx)
1928
32.8 C (91.0 F)
1929
34.4 C (93.9 F)
1930
36.7 C (98.1 F)
1931
37.2 C (99.0 F)
1932
35.0 C (95.0 F)
1933
38.3 C (100.9 F)
1934
37.8 C (100.0 F)
1935
36.7 C (98.1 F)
1936
40.0 C (104.0 F)
1937
34.4 C (93.9 F)
1938
33.3 C (91.9 F)
1939
34.4 C (93.9 F)
1940
35.0 C (95.0 F)
1941
36.7 C (98.1 F)
1942
34.4 C (93.9 F)
1943
35.0 C (95.0 F)
1944
35.6 C (96.1 F)
1945
33.3 C (91.9 F)
1946
33.9 C (93.0 F)
1947
35.0 C (95.0 F)
1948
36.1 C (97.0 F)
1949
34.4 C (93.9 F)
1950
33.3 C (91.9 F)
1951
32.8 C (91.0 F)
1952
35.6 C (96.1 F)
1953
36.7 C (98.1 F)
1954
36.1 C (97.0 F)
1955
33.3 C (91.9 F)
1956
32.2 C (90.0 F)
1957
32.8 C (91.0 F)
1958
31.1 C (88.0 F)
1959
33.3 C (91.9 F)
1960
31.7 C (89.1 F)
1961
32.2 C (90.0 F)
1962
32.8 C (91.0 F)
1963
33.3 C (91.9 F)
1964
33.3 C (91.9 F)
1965
32.8 C (91.0 F)
1966
36.1 C (97.0 F)
1967
33.3 C (91.9 F)
1968
33.3 C (91.9 F)
1969
33.9 C (93.0 F)
1970
30.6 C (87.1 F)
1971
33.9 C (93.0 F)
1972
32.8 C (91.0 F)
1973
33.3 C (91.9 F)
1974
33.3 C (91.9 F)
1975
33.3 C (91.9 F)
1976
31.1 C (88.0 F)
1977
33.3 C (91.9 F)
1978
32.2 C (90.0 F)
1979
31.1 C (88.0 F)
1980
33.9 C (93.0 F)
1981
32.2 C (90.0 F)
1982
32.2 C (90.0 F)
1983
32.8 C (91.0 F)
1984
31.7 C (89.1 F)
1985
32.8 C (91.0 F)
1986
32.8 C (91.0 F)
1987
36.7 C (98.1 F)
1988
37.8 C (100.0 F)
1989
32.8 C (91.0 F)
1990
35.6 C (96.1 F)
1991
35.0 C (95.0 F)
1992
31.1 C (88.0 F)
1993
34.4 C (93.9 F)
1994
32.8 C (91.0 F)
1995
35.0 C (95.0 F)
1996
32.2 C (90.0 F)
1997
33.3 C (91.9 F)
1998
32.8 C (91.0 F)
1999
33.3 C (91.9 F)
Coldest night (TNn)
The coldest night of the year at Meadville 1 S, 1928 to 1999. The record is -30.6 C (-23.1 F) in 1948, marked on the chart; the median year is -23.3 C (-9.9 F).
Coldest night (TNn) at Meadville 1 S by year
Year
Coldest night (TNn)
1928
-13.3 C (8.1 F)
1929
-25.0 C (-13.0 F)
1930
-21.1 C (-6.0 F)
1931
-13.9 C (7.0 F)
1932
-19.4 C (-2.9 F)
1933
-20.6 C (-5.1 F)
1934
-30.0 C (-22.0 F)
1935
-22.2 C (-8.0 F)
1936
-25.6 C (-14.1 F)
1937
-23.3 C (-9.9 F)
1938
-19.4 C (-2.9 F)
1939
-18.9 C (-2.0 F)
1940
-23.9 C (-11.0 F)
1941
-21.1 C (-6.0 F)
1942
-24.4 C (-11.9 F)
1943
-27.8 C (-18.0 F)
1944
-25.0 C (-13.0 F)
1945
-26.7 C (-16.1 F)
1946
-22.2 C (-8.0 F)
1947
-18.3 C (-0.9 F)
1948
-30.6 C (-23.1 F)
1949
-19.4 C (-2.9 F)
1950
-24.4 C (-11.9 F)
1951
-28.3 C (-18.9 F)
1952
-17.2 C (1.0 F)
1953
-15.6 C (3.9 F)
1954
-20.0 C (-4.0 F)
1955
-25.0 C (-13.0 F)
1956
-17.8 C (0.0 F)
1957
-23.3 C (-9.9 F)
1958
-24.4 C (-11.9 F)
1959
-22.2 C (-8.0 F)
1960
-24.4 C (-11.9 F)
1961
-27.8 C (-18.0 F)
1962
-23.3 C (-9.9 F)
1963
-30.0 C (-22.0 F)
1964
-24.4 C (-11.9 F)
1965
-26.7 C (-16.1 F)
1966
-25.6 C (-14.1 F)
1967
-22.8 C (-9.0 F)
1968
-22.8 C (-9.0 F)
1969
-20.6 C (-5.1 F)
1970
-26.7 C (-16.1 F)
1971
-24.4 C (-11.9 F)
1972
-23.9 C (-11.0 F)
1973
-25.0 C (-13.0 F)
1974
-18.9 C (-2.0 F)
1975
-21.7 C (-7.1 F)
1976
-22.8 C (-9.0 F)
1977
-25.0 C (-13.0 F)
1978
-23.9 C (-11.0 F)
1979
-28.3 C (-18.9 F)
1980
-24.4 C (-11.9 F)
1981
-23.9 C (-11.0 F)
1982
-27.8 C (-18.0 F)
1983
-23.3 C (-9.9 F)
1984
-27.8 C (-18.0 F)
1985
-28.3 C (-18.9 F)
1986
-22.2 C (-8.0 F)
1987
-23.3 C (-9.9 F)
1988
-22.8 C (-9.0 F)
1989
-25.0 C (-13.0 F)
1990
-22.2 C (-8.0 F)
1991
-18.9 C (-2.0 F)
1992
-19.4 C (-2.9 F)
1993
-22.2 C (-8.0 F)
1994
-30.0 C (-22.0 F)
1995
-20.0 C (-4.0 F)
1996
-23.9 C (-11.0 F)
1997
-23.3 C (-9.9 F)
1998
-13.3 C (8.1 F)
1999
-20.0 C (-4.0 F)
Wettest day (Rx1day)
The wettest day of the year at Meadville 1 S, 1928 to 1999. The record is 113.8 mm (4.5 in) in 1996, marked on the chart; the median year is 53.2 mm (2.1 in).
Wettest day (Rx1day) at Meadville 1 S by year
Year
Wettest day (Rx1day)
1928
32.5 mm (1.3 in)
1929
49.8 mm (2.0 in)
1930
31.5 mm (1.2 in)
1931
34.8 mm (1.4 in)
1932
39.9 mm (1.6 in)
1933
31.0 mm (1.2 in)
1934
92.7 mm (3.6 in)
1935
37.6 mm (1.5 in)
1936
44.5 mm (1.8 in)
1937
66.5 mm (2.6 in)
1938
49.8 mm (2.0 in)
1939
34.8 mm (1.4 in)
1940
31.5 mm (1.2 in)
1941
58.4 mm (2.3 in)
1942
63.8 mm (2.5 in)
1943
40.4 mm (1.6 in)
1944
43.7 mm (1.7 in)
1945
37.6 mm (1.5 in)
1946
44.7 mm (1.8 in)
1947
38.9 mm (1.5 in)
1948
79.2 mm (3.1 in)
1949
85.1 mm (3.4 in)
1950
45.5 mm (1.8 in)
1951
62.0 mm (2.4 in)
1952
54.4 mm (2.1 in)
1953
43.4 mm (1.7 in)
1954
94.5 mm (3.7 in)
1955
72.4 mm (2.9 in)
1956
79.2 mm (3.1 in)
1957
56.9 mm (2.2 in)
1958
61.0 mm (2.4 in)
1959
102.1 mm (4.0 in)
1960
38.4 mm (1.5 in)
1961
78.2 mm (3.1 in)
1962
37.3 mm (1.5 in)
1963
30.5 mm (1.2 in)
1964
54.1 mm (2.1 in)
1965
56.6 mm (2.2 in)
1966
47.2 mm (1.9 in)
1967
47.0 mm (1.9 in)
1968
51.8 mm (2.0 in)
1969
64.3 mm (2.5 in)
1970
51.1 mm (2.0 in)
1971
107.4 mm (4.2 in)
1972
40.6 mm (1.6 in)
1973
81.3 mm (3.2 in)
1974
58.9 mm (2.3 in)
1975
39.4 mm (1.6 in)
1976
58.9 mm (2.3 in)
1977
60.2 mm (2.4 in)
1978
56.4 mm (2.2 in)
1979
70.1 mm (2.8 in)
1980
69.3 mm (2.7 in)
1981
104.6 mm (4.1 in)
1982
64.0 mm (2.5 in)
1983
56.4 mm (2.2 in)
1984
39.1 mm (1.5 in)
1985
75.7 mm (3.0 in)
1986
72.4 mm (2.9 in)
1987
73.9 mm (2.9 in)
1988
47.8 mm (1.9 in)
1989
51.1 mm (2.0 in)
1990
77.2 mm (3.0 in)
1991
48.8 mm (1.9 in)
1992
42.2 mm (1.7 in)
1993
53.8 mm (2.1 in)
1994
72.1 mm (2.8 in)
1995
40.6 mm (1.6 in)
1996
113.8 mm (4.5 in)
1997
52.6 mm (2.1 in)
1998
50.0 mm (2.0 in)
1999
36.8 mm (1.4 in)
Wettest five days (Rx5day)
The wettest five days of the year at Meadville 1 S, 1928 to 1999. The record is 146.8 mm (5.8 in) in 1949, marked on the chart; the median year is 78.3 mm (3.1 in).
Wettest five days (Rx5day) at Meadville 1 S by year
Year
Wettest five days (Rx5day)
1928
48.1 mm (1.9 in)
1929
78.8 mm (3.1 in)
1930
60.7 mm (2.4 in)
1931
47.8 mm (1.9 in)
1932
74.7 mm (2.9 in)
1933
53.9 mm (2.1 in)
1934
40.6 mm (1.6 in)
1935
67.5 mm (2.7 in)
1936
118.5 mm (4.7 in)
1937
100.8 mm (4.0 in)
1938
71.1 mm (2.8 in)
1939
64.0 mm (2.5 in)
1940
49.2 mm (1.9 in)
1941
69.3 mm (2.7 in)
1942
75.7 mm (3.0 in)
1943
73.4 mm (2.9 in)
1944
60.7 mm (2.4 in)
1945
70.6 mm (2.8 in)
1946
71.8 mm (2.8 in)
1947
65.8 mm (2.6 in)
1948
110.4 mm (4.3 in)
1949
146.8 mm (5.8 in)
1950
71.9 mm (2.8 in)
1951
77.8 mm (3.1 in)
1952
89.0 mm (3.5 in)
1953
70.6 mm (2.8 in)
1954
140.2 mm (5.5 in)
1955
73.9 mm (2.9 in)
1956
125.2 mm (4.9 in)
1957
107.4 mm (4.2 in)
1958
79.8 mm (3.1 in)
1959
107.0 mm (4.2 in)
1960
87.7 mm (3.5 in)
1961
89.9 mm (3.5 in)
1962
52.8 mm (2.1 in)
1963
63.7 mm (2.5 in)
1964
88.4 mm (3.5 in)
1965
58.9 mm (2.3 in)
1966
62.0 mm (2.4 in)
1967
87.4 mm (3.4 in)
1968
86.2 mm (3.4 in)
1969
98.3 mm (3.9 in)
1970
66.6 mm (2.6 in)
1971
133.8 mm (5.3 in)
1972
94.9 mm (3.7 in)
1973
96.0 mm (3.8 in)
1974
102.1 mm (4.0 in)
1975
69.3 mm (2.7 in)
1976
87.7 mm (3.5 in)
1977
68.6 mm (2.7 in)
1978
69.9 mm (2.8 in)
1979
126.7 mm (5.0 in)
1980
121.1 mm (4.8 in)
1981
106.9 mm (4.2 in)
1982
81.7 mm (3.2 in)
1983
82.3 mm (3.2 in)
1984
80.2 mm (3.2 in)
1985
131.8 mm (5.2 in)
1986
105.7 mm (4.2 in)
1987
109.0 mm (4.3 in)
1988
61.2 mm (2.4 in)
1989
69.8 mm (2.7 in)
1990
106.0 mm (4.2 in)
1991
62.0 mm (2.4 in)
1992
87.8 mm (3.5 in)
1993
77.3 mm (3.0 in)
1994
82.8 mm (3.3 in)
1995
64.3 mm (2.5 in)
1996
139.9 mm (5.5 in)
1997
67.1 mm (2.6 in)
1998
84.5 mm (3.3 in)
1999
54.6 mm (2.1 in)
Longest dry spell (CDD)
The longest dry spell of the year at Meadville 1 S, 1928 to 1999. The record is 34 days in 1953, marked on the chart; the median year is 14 days.
Longest dry spell (CDD) at Meadville 1 S by year
Year
Longest dry spell (CDD)
1928
13 days
1929
11 days
1930
16 days
1931
16 days
1932
17 days
1933
15 days
1934
20 days
1935
10 days
1936
19 days
1937
7 days
1938
20 days
1939
13 days
1940
11 days
1941
14 days
1942
17 days
1943
18 days
1944
14 days
1945
13 days
1946
20 days
1947
22 days
1948
18 days
1949
18 days
1950
13 days
1951
15 days
1952
12 days
1953
34 days
1954
14 days
1955
14 days
1956
14 days
1957
24 days
1958
10 days
1959
11 days
1960
16 days
1961
10 days
1962
14 days
1963
28 days
1964
24 days
1965
10 days
1966
20 days
1967
12 days
1968
12 days
1969
16 days
1970
12 days
1971
12 days
1972
9 days
1973
10 days
1974
9 days
1975
14 days
1976
16 days
1977
18 days
1978
18 days
1979
12 days
1980
15 days
1981
12 days
1982
16 days
1983
16 days
1984
12 days
1985
15 days
1986
14 days
1987
15 days
1988
17 days
1989
10 days
1990
13 days
1991
13 days
1992
10 days
1993
13 days
1994
14 days
1995
23 days
1996
13 days
1997
12 days
1998
23 days
1999
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
63 years with a frost
Across 63 years with a frost, the median last spring frost at Meadville 1 S falls on 14 May and the median first autumn frost on 7 October, which leaves a median of 148 days between them.
In 1966 to 1998 the median growing season was 151 days. That is 13 days more than in 1930 to 1962.
Fitted over all years, the growing season changes by +3.3 days per decade at this station.
Frost dates and growing season at Meadville 1 S
Measure
Median, all years
Earliest period (1930 to 1962)
Recent period (1966 to 1998)
Recent against earliest
Fitted trend
Last spring frost
14 May
15 May
12 May
3 days earlier
-1.1 days per decade
First autumn frost
7 October
3 October
12 October
9 days later
+2.2 days per decade
Growing days
148 days
138 days
151 days
13 days more
+3.3 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
64 years, 1930 to 1998
A day with at least 54.5 mm (2.1 in) of rain is expected about once in 2 years. A day with at least 125.8 mm (5.0 in) of rain is expected about once in 100 years.
Rainfall return levels at Meadville 1 S: the daily rain expected about once in a given number of years
Expected about once in
A day with at least
Note
2 years
54.5 mm (2.1 in)
5 years
72.0 mm (2.8 in)
10 years
84.3 mm (3.3 in)
25 years
100.4 mm (4.0 in)
50 years
112.9 mm (4.4 in)
100 years
125.8 mm (5.0 in)
Longer than the 64 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, 64 years of values from 1930 to 1998.
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: 113.8 mm (4.5 in) in 1996; 107.4 mm (4.2 in) in 1971; 104.6 mm (4.1 in) in 1981.
Station Changes
1 suspected
One change was suspected in the annual mean temperature of Meadville 1 S, at 1970. Each is measured against neighbouring stations.
Relative to 5 neighbouring stations, the station's annual mean temperature from 1970 ran 0.1 C (0.3 F) lower than in the years before (possible change).
Suspected changes in the annual mean temperature at Meadville 1 S, against neighbouring stations
Year
Shift (C)
Shift (F)
Strength
Neighbours
1970
-0.1
-0.3
possible
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 Meadville 1 S standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Meadville 1 S 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.