Record envelope, standing records and threshold days for Matamoras (USC00365470), Pennsylvania, United States, with 109 years of record.
Key Facts for Matamoras
Matamoras (USC00365470) is a weather station in Pennsylvania, United States at 41.39 latitude and -74.72 longitude, 140 m (459 ft) above sea level.
The station reports from 1904 to 2012, 109 years of record.
1,464 records set at Matamoras still stand.
Records are tracked for tmax, tmin, prcp, snow, snwd: an element needs 30 years of data to be eligible.
Matamoras set a daily record high minimum temperature of 6.1 C (43.0 F) on 26 March 2012.
About the Station
Location: Pennsylvania, United States, 41.39 latitude, -74.72 longitude.
Elevation: 140 m (459 ft).
Period of record: 1904 to 2012, 109 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 Matamoras. 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 Matamoras, with 2026 drawn through them
Month
Highest record high
Lowest record low
2026 highest maximum
2026 lowest minimum
Jan
20.0 C (68.0 F)
-27.8 C (-18.0 F)
n/a
n/a
Feb
23.3 C (73.9 F)
-24.4 C (-11.9 F)
n/a
n/a
Mar
31.1 C (88.0 F)
-22.2 C (-8.0 F)
n/a
n/a
Apr
35.0 C (95.0 F)
-11.7 C (10.9 F)
n/a
n/a
May
35.0 C (95.0 F)
-3.9 C (25.0 F)
n/a
n/a
Jun
36.7 C (98.1 F)
1.1 C (34.0 F)
n/a
n/a
Jul
38.9 C (102.0 F)
5.0 C (41.0 F)
n/a
n/a
Aug
37.2 C (99.0 F)
2.2 C (36.0 F)
n/a
n/a
Sep
36.7 C (98.1 F)
-3.3 C (26.1 F)
n/a
n/a
Oct
33.3 C (91.9 F)
-7.2 C (19.0 F)
n/a
n/a
Nov
27.2 C (81.0 F)
-13.3 C (8.1 F)
n/a
n/a
Dec
22.8 C (73.0 F)
-23.3 C (-9.9 F)
n/a
n/a
Which Years Hold Standing Records
1,464 standing records
Year with most
1,464 records at Matamoras still stand. 1964 holds the most, with 62.
Standing records at Matamoras by the year they were set
Year set
Standing records
1963
30
1964
62
1965
47
1966
41
1967
40
1968
34
1969
19
1970
32
1971
31
1972
29
1973
40
1974
38
1975
28
1976
39
1977
44
1978
25
1979
47
1980
30
1981
33
1982
29
1983
15
1984
42
1985
25
1986
22
1987
25
1988
37
1989
34
1990
41
1991
37
1992
25
1993
15
1994
6
1995
30
1996
31
1997
26
1998
29
1999
16
2000
38
2001
22
2002
30
2003
35
2004
17
2005
19
2006
18
2007
22
2008
16
2009
19
2010
19
2011
21
2012
14
All-Time Record Progression
1 new records
1 all-time records were set at Matamoras between 9 January 1996 and 9 January 1996. Each dot is a new record.
When Matamoras set new all-time records
Date
Kind
Detail
1996-01-09
Record snow depth
Record snow depth 91.4 cm (36.0 in)
Wettest Day of Each Month
Jun: 172.2 mm (6.8 in)
The wettest day on record for each calendar month at Matamoras. The most was 172.2 mm (6.8 in) on 18 June 1922.
Record daily precipitation for each month at Matamoras
Month
Record daily precipitation (mm)
Date
Jan
55.4 mm (2.2 in)
25 January 1979
Feb
53.3 mm (2.1 in)
22 February 1937
Mar
82.0 mm (3.2 in)
23 March 1977
Apr
95.3 mm (3.8 in)
16 April 2007
May
81.5 mm (3.2 in)
12 May 1981
Jun
172.2 mm (6.8 in)
18 June 1922
Jul
83.3 mm (3.3 in)
10 July 1952
Aug
148.1 mm (5.8 in)
19 August 1955
Sep
152.9 mm (6.0 in)
17 September 1999
Oct
157.2 mm (6.2 in)
9 October 2005
Nov
97.3 mm (3.8 in)
9 November 1972
Dec
68.6 mm (2.7 in)
12 December 2008
Period of Record Coverage
1955 to 2012
Complete yearUnder 90 percent of days
51 years of record at Matamoras, 1955 to 2012. 8 years have data for under 90 percent of days and are left out of rankings: 1955, 1963, 1983, 1987, 1993, 1994, 2005, 2012.
Cooler than the station meanWarmer than the station mean
One stripe for each of 39 complete years at Matamoras, 1964 to 2011. Blue stripes are years cooler than the station's own mean of 9.7 C (49.4 F); red stripes are warmer. The coolest year was 2003, at 8.2 C (46.7 F), and the warmest was 1973, at 11.2 C (52.2 F). The strongest colour marks a difference of 1.6 C (2.9 F).
Annual mean temperature at Matamoras as warming stripes, 1964 to 2011
Year
Annual mean temperature
Difference from the station mean
1964
10.0 C
+0.31 C
1965
9.7 C
-0.01 C
1966
9.8 C
+0.10 C
1967
9.4 C
-0.27 C
1968
9.7 C
+0.02 C
1969
9.8 C
+0.10 C
1970
9.8 C
+0.10 C
1971
9.9 C
+0.26 C
1972
9.7 C
+0.02 C
1973
11.2 C
+1.54 C
1974
10.3 C
+0.65 C
1975
10.8 C
+1.13 C
1976
9.7 C
+0.07 C
1977
10.3 C
+0.60 C
1978
9.5 C
-0.16 C
1979
10.2 C
+0.55 C
1980
10.0 C
+0.31 C
1981
10.4 C
+0.73 C
1982
10.0 C
+0.38 C
1984
10.0 C
+0.35 C
1988
8.8 C
-0.84 C
1989
8.6 C
-1.03 C
1990
10.4 C
+0.74 C
1991
10.5 C
+0.84 C
1995
9.4 C
-0.29 C
1996
8.7 C
-0.92 C
1997
8.8 C
-0.89 C
1998
10.6 C
+0.92 C
1999
9.6 C
-0.06 C
2000
8.4 C
-1.25 C
2001
9.2 C
-0.49 C
2002
9.4 C
-0.29 C
2003
8.2 C
-1.50 C
2006
9.9 C
+0.27 C
2007
9.2 C
-0.49 C
2008
9.2 C
-0.47 C
2009
8.7 C
-1.01 C
2010
9.8 C
+0.18 C
2011
9.6 C
-0.05 C
The annual mean temperature here has fallen by 0.2 C (0.1 to 0.3) per decade over 1964 to 2011. In Fahrenheit: 0.4 F (0.1 to 0.6) per decade. The slope is a straight line fitted to 39 complete years; the brackets give its 95 percent interval.
Fitted temperature trends per decade at Matamoras
Measure
Per decade (C)
Per decade (F)
Period
Complete years
Reading
Annual mean temperature
-0.2 C (-0.3 to -0.1) per decade
-0.4 F (-0.6 to -0.1) per decade
1964 to 2011
39
Fall
Mean daily maximum
-0.3 C (-0.4 to -0.1) per decade
-0.5 F (-0.8 to -0.3) per decade
1964 to 2011
39
Fall
Mean daily minimum
-0.1 C (-0.3 to 0.1) per decade
-0.2 F (-0.5 to 0.1) per decade
1964 to 2011
39
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
1904 to 2012
Yearly extremes at Matamoras: the record and the median year
Measure
Record
Year of the record
Median year
Years with a value
Hottest day (TXx)
38.9 C (102.0 F)
1966
35.0 C (95.0 F)
51
Coldest night (TNn)
-27.8 C (-18.0 F)
1981
-21.4 C (-6.5 F)
50
Wettest day (Rx1day)
172.2 mm (6.8 in)
1922
59.4 mm (2.3 in)
109
Wettest five days (Rx5day)
238.8 mm (9.4 in)
2005
91.5 mm (3.6 in)
109
Longest dry spell (CDD)
36 days
1924
16 days
109
Hottest day (TXx)
The hottest day of the year at Matamoras, 1904 to 2012. The record is 38.9 C (102.0 F) in 1966, marked on the chart; the median year is 35.0 C (95.0 F).
Hottest day (TXx) at Matamoras by year
Year
Hottest day (TXx)
1904
n/a
1905
n/a
1906
n/a
1907
n/a
1908
n/a
1909
n/a
1910
n/a
1911
n/a
1912
n/a
1913
n/a
1914
n/a
1915
n/a
1916
n/a
1917
n/a
1918
n/a
1919
n/a
1920
n/a
1921
n/a
1922
n/a
1923
n/a
1924
n/a
1925
n/a
1926
n/a
1927
n/a
1928
n/a
1929
n/a
1930
n/a
1931
n/a
1932
n/a
1933
n/a
1934
n/a
1935
n/a
1936
n/a
1937
n/a
1938
n/a
1939
n/a
1940
n/a
1941
n/a
1942
n/a
1943
n/a
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
31.1 C (88.0 F)
1956
n/a
1957
n/a
1958
n/a
1959
n/a
1960
n/a
1961
n/a
1962
n/a
1963
36.1 C (97.0 F)
1964
36.7 C (98.1 F)
1965
36.1 C (97.0 F)
1966
38.9 C (102.0 F)
1967
33.3 C (91.9 F)
1968
36.7 C (98.1 F)
1969
35.0 C (95.0 F)
1970
33.9 C (93.0 F)
1971
34.4 C (93.9 F)
1972
35.6 C (96.1 F)
1973
35.6 C (96.1 F)
1974
35.0 C (95.0 F)
1975
36.1 C (97.0 F)
1976
35.0 C (95.0 F)
1977
37.8 C (100.0 F)
1978
36.7 C (98.1 F)
1979
34.4 C (93.9 F)
1980
36.7 C (98.1 F)
1981
35.0 C (95.0 F)
1982
35.6 C (96.1 F)
1983
35.6 C (96.1 F)
1984
34.4 C (93.9 F)
1985
31.7 C (89.1 F)
1986
33.3 C (91.9 F)
1987
34.4 C (93.9 F)
1988
36.7 C (98.1 F)
1989
32.8 C (91.0 F)
1990
35.0 C (95.0 F)
1991
37.2 C (99.0 F)
1992
33.3 C (91.9 F)
1993
32.8 C (91.0 F)
1994
29.4 C (84.9 F)
1995
37.2 C (99.0 F)
1996
34.4 C (93.9 F)
1997
34.4 C (93.9 F)
1998
32.8 C (91.0 F)
1999
36.1 C (97.0 F)
2000
33.3 C (91.9 F)
2001
37.2 C (99.0 F)
2002
36.1 C (97.0 F)
2003
31.7 C (89.1 F)
2004
32.2 C (90.0 F)
2005
35.0 C (95.0 F)
2006
35.0 C (95.0 F)
2007
34.4 C (93.9 F)
2008
34.4 C (93.9 F)
2009
32.8 C (91.0 F)
2010
36.1 C (97.0 F)
2011
35.0 C (95.0 F)
2012
25.0 C (77.0 F)
Coldest night (TNn)
The coldest night of the year at Matamoras, 1904 to 2012. The record is -27.8 C (-18.0 F) in 1981, marked on the chart; the median year is -21.4 C (-6.5 F).
Coldest night (TNn) at Matamoras by year
Year
Coldest night (TNn)
1904
n/a
1905
n/a
1906
n/a
1907
n/a
1908
n/a
1909
n/a
1910
n/a
1911
n/a
1912
n/a
1913
n/a
1914
n/a
1915
n/a
1916
n/a
1917
n/a
1918
n/a
1919
n/a
1920
n/a
1921
n/a
1922
n/a
1923
n/a
1924
n/a
1925
n/a
1926
n/a
1927
n/a
1928
n/a
1929
n/a
1930
n/a
1931
n/a
1932
n/a
1933
n/a
1934
n/a
1935
n/a
1936
n/a
1937
n/a
1938
n/a
1939
n/a
1940
n/a
1941
n/a
1942
n/a
1943
n/a
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
-21.7 C (-7.1 F)
1964
-22.8 C (-9.0 F)
1965
-21.1 C (-6.0 F)
1966
-21.1 C (-6.0 F)
1967
-23.3 C (-9.9 F)
1968
-26.7 C (-16.1 F)
1969
-21.7 C (-7.1 F)
1970
-23.3 C (-9.9 F)
1971
-24.4 C (-11.9 F)
1972
-20.6 C (-5.1 F)
1973
-19.4 C (-2.9 F)
1974
-20.6 C (-5.1 F)
1975
-18.9 C (-2.0 F)
1976
-22.8 C (-9.0 F)
1977
-25.6 C (-14.1 F)
1978
-22.2 C (-8.0 F)
1979
-23.9 C (-11.0 F)
1980
-23.3 C (-9.9 F)
1981
-27.8 C (-18.0 F)
1982
-25.6 C (-14.1 F)
1983
-18.9 C (-2.0 F)
1984
-24.4 C (-11.9 F)
1985
-21.7 C (-7.1 F)
1986
-17.2 C (1.0 F)
1987
-22.2 C (-8.0 F)
1988
-22.2 C (-8.0 F)
1989
-23.3 C (-9.9 F)
1990
-16.7 C (1.9 F)
1991
-17.2 C (1.0 F)
1992
-17.2 C (1.0 F)
1993
-19.4 C (-2.9 F)
1994
-11.7 C (10.9 F)
1995
-22.2 C (-8.0 F)
1996
-23.3 C (-9.9 F)
1997
-22.2 C (-8.0 F)
1998
-16.7 C (1.9 F)
1999
-19.4 C (-2.9 F)
2000
-18.9 C (-2.0 F)
2001
-17.2 C (1.0 F)
2002
-16.7 C (1.9 F)
2003
-20.0 C (-4.0 F)
2004
-20.6 C (-5.1 F)
2005
-22.8 C (-9.0 F)
2006
-14.4 C (6.1 F)
2007
-17.2 C (1.0 F)
2008
-16.7 C (1.9 F)
2009
-24.4 C (-11.9 F)
2010
-15.6 C (3.9 F)
2011
-22.8 C (-9.0 F)
2012
-16.7 C (1.9 F)
Wettest day (Rx1day)
The wettest day of the year at Matamoras, 1904 to 2012. The record is 172.2 mm (6.8 in) in 1922, marked on the chart; the median year is 59.4 mm (2.3 in).
Wettest day (Rx1day) at Matamoras by year
Year
Wettest day (Rx1day)
1904
46.5 mm (1.8 in)
1905
50.8 mm (2.0 in)
1906
49.3 mm (1.9 in)
1907
66.0 mm (2.6 in)
1908
48.3 mm (1.9 in)
1909
62.0 mm (2.4 in)
1910
58.9 mm (2.3 in)
1911
59.4 mm (2.3 in)
1912
41.7 mm (1.6 in)
1913
55.9 mm (2.2 in)
1914
66.0 mm (2.6 in)
1915
41.9 mm (1.6 in)
1916
44.5 mm (1.8 in)
1917
48.0 mm (1.9 in)
1918
39.9 mm (1.6 in)
1919
38.1 mm (1.5 in)
1920
78.7 mm (3.1 in)
1921
44.5 mm (1.8 in)
1922
172.2 mm (6.8 in)
1923
63.5 mm (2.5 in)
1924
83.1 mm (3.3 in)
1925
42.9 mm (1.7 in)
1926
63.5 mm (2.5 in)
1927
81.0 mm (3.2 in)
1928
78.2 mm (3.1 in)
1929
42.2 mm (1.7 in)
1930
37.6 mm (1.5 in)
1931
56.9 mm (2.2 in)
1932
52.8 mm (2.1 in)
1933
37.1 mm (1.5 in)
1934
45.5 mm (1.8 in)
1935
97.0 mm (3.8 in)
1936
42.9 mm (1.7 in)
1937
58.4 mm (2.3 in)
1938
62.7 mm (2.5 in)
1939
46.2 mm (1.8 in)
1940
69.3 mm (2.7 in)
1941
69.1 mm (2.7 in)
1942
52.3 mm (2.1 in)
1943
57.9 mm (2.3 in)
1944
59.9 mm (2.4 in)
1945
81.8 mm (3.2 in)
1946
49.5 mm (1.9 in)
1947
52.8 mm (2.1 in)
1948
62.7 mm (2.5 in)
1949
57.7 mm (2.3 in)
1950
83.3 mm (3.3 in)
1951
51.8 mm (2.0 in)
1952
83.3 mm (3.3 in)
1953
65.8 mm (2.6 in)
1954
59.4 mm (2.3 in)
1955
148.1 mm (5.8 in)
1956
66.8 mm (2.6 in)
1957
56.6 mm (2.2 in)
1958
44.2 mm (1.7 in)
1959
86.6 mm (3.4 in)
1960
84.8 mm (3.3 in)
1961
48.8 mm (1.9 in)
1962
37.6 mm (1.5 in)
1963
55.1 mm (2.2 in)
1964
41.4 mm (1.6 in)
1965
47.2 mm (1.9 in)
1966
46.0 mm (1.8 in)
1967
47.0 mm (1.9 in)
1968
69.1 mm (2.7 in)
1969
47.5 mm (1.9 in)
1970
47.0 mm (1.9 in)
1971
111.3 mm (4.4 in)
1972
97.3 mm (3.8 in)
1973
58.9 mm (2.3 in)
1974
77.0 mm (3.0 in)
1975
51.8 mm (2.0 in)
1976
73.2 mm (2.9 in)
1977
82.0 mm (3.2 in)
1978
54.4 mm (2.1 in)
1979
98.0 mm (3.9 in)
1980
74.7 mm (2.9 in)
1981
81.5 mm (3.2 in)
1982
44.2 mm (1.7 in)
1983
46.5 mm (1.8 in)
1984
71.9 mm (2.8 in)
1985
75.9 mm (3.0 in)
1986
70.4 mm (2.8 in)
1987
55.6 mm (2.2 in)
1988
41.7 mm (1.6 in)
1989
94.5 mm (3.7 in)
1990
52.8 mm (2.1 in)
1991
50.0 mm (2.0 in)
1992
60.2 mm (2.4 in)
1993
43.7 mm (1.7 in)
1994
41.4 mm (1.6 in)
1995
75.2 mm (3.0 in)
1996
76.2 mm (3.0 in)
1997
70.9 mm (2.8 in)
1998
97.0 mm (3.8 in)
1999
152.9 mm (6.0 in)
2000
78.0 mm (3.1 in)
2001
49.5 mm (1.9 in)
2002
65.5 mm (2.6 in)
2003
73.7 mm (2.9 in)
2004
80.0 mm (3.1 in)
2005
157.2 mm (6.2 in)
2006
61.7 mm (2.4 in)
2007
95.3 mm (3.8 in)
2008
68.6 mm (2.7 in)
2009
42.2 mm (1.7 in)
2010
128.3 mm (5.1 in)
2011
115.3 mm (4.5 in)
2012
15.7 mm (0.6 in)
Wettest five days (Rx5day)
The wettest five days of the year at Matamoras, 1904 to 2012. The record is 238.8 mm (9.4 in) in 2005, marked on the chart; the median year is 91.5 mm (3.6 in).
Wettest five days (Rx5day) at Matamoras by year
Year
Wettest five days (Rx5day)
1904
82.1 mm (3.2 in)
1905
78.3 mm (3.1 in)
1906
71.6 mm (2.8 in)
1907
98.0 mm (3.9 in)
1908
68.0 mm (2.7 in)
1909
76.8 mm (3.0 in)
1910
89.4 mm (3.5 in)
1911
130.5 mm (5.1 in)
1912
73.9 mm (2.9 in)
1913
70.1 mm (2.8 in)
1914
69.6 mm (2.7 in)
1915
77.2 mm (3.0 in)
1916
78.3 mm (3.1 in)
1917
67.5 mm (2.7 in)
1918
66.4 mm (2.6 in)
1919
93.2 mm (3.7 in)
1920
115.6 mm (4.6 in)
1921
68.2 mm (2.7 in)
1922
180.1 mm (7.1 in)
1923
85.3 mm (3.4 in)
1924
106.7 mm (4.2 in)
1925
95.2 mm (3.7 in)
1926
109.0 mm (4.3 in)
1927
97.0 mm (3.8 in)
1928
78.2 mm (3.1 in)
1929
74.1 mm (2.9 in)
1930
69.7 mm (2.7 in)
1931
76.8 mm (3.0 in)
1932
63.4 mm (2.5 in)
1933
55.9 mm (2.2 in)
1934
71.4 mm (2.8 in)
1935
134.1 mm (5.3 in)
1936
96.7 mm (3.8 in)
1937
80.5 mm (3.2 in)
1938
168.1 mm (6.6 in)
1939
64.0 mm (2.5 in)
1940
117.3 mm (4.6 in)
1941
54.9 mm (2.2 in)
1942
80.5 mm (3.2 in)
1943
88.8 mm (3.5 in)
1944
119.9 mm (4.7 in)
1945
97.1 mm (3.8 in)
1946
100.1 mm (3.9 in)
1947
98.1 mm (3.9 in)
1948
101.8 mm (4.0 in)
1949
69.1 mm (2.7 in)
1950
99.8 mm (3.9 in)
1951
73.6 mm (2.9 in)
1952
153.1 mm (6.0 in)
1953
140.8 mm (5.5 in)
1954
92.9 mm (3.7 in)
1955
233.7 mm (9.2 in)
1956
82.3 mm (3.2 in)
1957
69.8 mm (2.7 in)
1958
88.2 mm (3.5 in)
1959
113.5 mm (4.5 in)
1960
110.9 mm (4.4 in)
1961
69.2 mm (2.7 in)
1962
64.2 mm (2.5 in)
1963
97.0 mm (3.8 in)
1964
61.7 mm (2.4 in)
1965
79.7 mm (3.1 in)
1966
64.2 mm (2.5 in)
1967
81.0 mm (3.2 in)
1968
100.6 mm (4.0 in)
1969
78.8 mm (3.1 in)
1970
100.8 mm (4.0 in)
1971
114.3 mm (4.5 in)
1972
119.8 mm (4.7 in)
1973
92.4 mm (3.6 in)
1974
77.7 mm (3.1 in)
1975
87.9 mm (3.5 in)
1976
117.4 mm (4.6 in)
1977
94.2 mm (3.7 in)
1978
91.5 mm (3.6 in)
1979
115.6 mm (4.6 in)
1980
89.4 mm (3.5 in)
1981
126.0 mm (5.0 in)
1982
68.0 mm (2.7 in)
1983
79.0 mm (3.1 in)
1984
125.2 mm (4.9 in)
1985
135.3 mm (5.3 in)
1986
111.5 mm (4.4 in)
1987
58.7 mm (2.3 in)
1988
101.8 mm (4.0 in)
1989
165.3 mm (6.5 in)
1990
73.7 mm (2.9 in)
1991
69.7 mm (2.7 in)
1992
77.2 mm (3.0 in)
1993
47.3 mm (1.9 in)
1994
75.7 mm (3.0 in)
1995
103.7 mm (4.1 in)
1996
81.8 mm (3.2 in)
1997
90.4 mm (3.6 in)
1998
124.2 mm (4.9 in)
1999
168.7 mm (6.6 in)
2000
116.1 mm (4.6 in)
2001
94.5 mm (3.7 in)
2002
93.0 mm (3.7 in)
2003
115.5 mm (4.5 in)
2004
109.8 mm (4.3 in)
2005
238.8 mm (9.4 in)
2006
153.2 mm (6.0 in)
2007
130.9 mm (5.2 in)
2008
109.5 mm (4.3 in)
2009
68.7 mm (2.7 in)
2010
160.1 mm (6.3 in)
2011
163.9 mm (6.5 in)
2012
27.5 mm (1.1 in)
Longest dry spell (CDD)
The longest dry spell of the year at Matamoras, 1904 to 2012. The record is 36 days in 1924, marked on the chart; the median year is 16 days.
Longest dry spell (CDD) at Matamoras by year
Year
Longest dry spell (CDD)
1904
21 days
1905
11 days
1906
17 days
1907
14 days
1908
33 days
1909
20 days
1910
18 days
1911
24 days
1912
15 days
1913
14 days
1914
20 days
1915
26 days
1916
13 days
1917
20 days
1918
19 days
1919
14 days
1920
17 days
1921
14 days
1922
25 days
1923
22 days
1924
36 days
1925
15 days
1926
16 days
1927
15 days
1928
12 days
1929
19 days
1930
20 days
1931
13 days
1932
24 days
1933
23 days
1934
17 days
1935
19 days
1936
14 days
1937
14 days
1938
17 days
1939
25 days
1940
16 days
1941
19 days
1942
16 days
1943
19 days
1944
22 days
1945
13 days
1946
18 days
1947
35 days
1948
17 days
1949
8 days
1950
16 days
1951
15 days
1952
16 days
1953
22 days
1954
13 days
1955
12 days
1956
14 days
1957
13 days
1958
12 days
1959
13 days
1960
18 days
1961
13 days
1962
15 days
1963
32 days
1964
23 days
1965
16 days
1966
15 days
1967
12 days
1968
26 days
1969
21 days
1970
16 days
1971
17 days
1972
16 days
1973
15 days
1974
15 days
1975
15 days
1976
17 days
1977
18 days
1978
13 days
1979
12 days
1980
31 days
1981
24 days
1982
14 days
1983
16 days
1984
17 days
1985
19 days
1986
15 days
1987
10 days
1988
24 days
1989
15 days
1990
16 days
1991
23 days
1992
20 days
1993
18 days
1994
18 days
1995
25 days
1996
10 days
1997
16 days
1998
14 days
1999
17 days
2000
21 days
2001
28 days
2002
16 days
2003
18 days
2004
14 days
2005
15 days
2006
16 days
2007
21 days
2008
13 days
2009
13 days
2010
17 days
2011
12 days
2012
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
39 years with a frost
Across 39 years with a frost, the median last spring frost at Matamoras falls on 7 May and the median first autumn frost on 10 October, which leaves a median of 156 days between them.
Fitted over all years, the growing season changes by +1.4 days per decade at this station.
Frost dates and growing season at Matamoras
Measure
Median, all years
Earliest period
Recent period (1973 to 2011)
Recent against earliest
Fitted trend
Last spring frost
7 May
n/a
3 May
n/a
-0.1 days per decade
First autumn frost
10 October
n/a
10 October
n/a
+1.3 days per decade
Growing days
156 days
n/a
160 days
n/a
+1.4 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
97 years, 1905 to 2011
A day with at least 60.9 mm (2.4 in) of rain is expected about once in 2 years. A day with at least 171.4 mm (6.7 in) of rain is expected about once in 100 years.
Rainfall return levels at Matamoras: the daily rain expected about once in a given number of years
Expected about once in
A day with at least
Note
2 years
60.9 mm (2.4 in)
5 years
82.0 mm (3.2 in)
10 years
98.8 mm (3.9 in)
25 years
124.1 mm (4.9 in)
50 years
146.2 mm (5.8 in)
100 years
171.4 mm (6.7 in)
Longer than the 97 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, 97 years of values from 1905 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: 172.2 mm (6.8 in) in 1922; 157.2 mm (6.2 in) in 2005; 152.9 mm (6.0 in) in 1999.
Download the Data
Data for Matamoras standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Matamoras 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 2026-10-16 (16 October 2026). Records are computed by this site and are not official.