Record envelope, standing records and threshold days for Worcester (USC00199928), Massachusetts, United States, with 71 years of record.
Key Facts for Worcester
Worcester (USC00199928) is a weather station in Massachusetts, United States at 42.30 latitude and -71.82 longitude, 189 m (620 ft) above sea level.
The station reports from 1892 to 1962, 71 years of record.
1,464 records set at Worcester still stand.
Records are tracked for tmax, tmin, prcp, snow, snwd: an element needs 30 years of data to be eligible.
Worcester set a daily record low maximum temperature of 1.7 C (35.1 F) on 26 October 1962.
About the Station
Location: Massachusetts, United States, 42.30 latitude, -71.82 longitude.
Elevation: 189 m (620 ft).
Period of record: 1892 to 1962, 71 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 Worcester. 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 Worcester, with 2026 drawn through them
Month
Highest record high
Lowest record low
2026 highest maximum
2026 lowest minimum
Jan
20.6 C (69.1 F)
-27.8 C (-18.0 F)
n/a
n/a
Feb
19.4 C (66.9 F)
-31.1 C (-24.0 F)
n/a
n/a
Mar
28.9 C (84.0 F)
-21.1 C (-6.0 F)
n/a
n/a
Apr
32.8 C (91.0 F)
-13.3 C (8.1 F)
n/a
n/a
May
33.9 C (93.0 F)
-3.9 C (25.0 F)
n/a
n/a
Jun
35.6 C (96.1 F)
0.6 C (33.1 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)
3.3 C (37.9 F)
n/a
n/a
Sep
37.8 C (100.0 F)
-3.3 C (26.1 F)
n/a
n/a
Oct
32.8 C (91.0 F)
-7.8 C (18.0 F)
n/a
n/a
Nov
27.2 C (81.0 F)
-16.1 C (3.0 F)
n/a
n/a
Dec
19.4 C (66.9 F)
-27.2 C (-17.0 F)
n/a
n/a
Which Years Hold Standing Records
1,464 standing records
Year with most
1,464 records at Worcester still stand. 1929 holds the most, with 38.
Standing records at Worcester by the year they were set
Year set
Standing records
1892
16
1893
7
1894
26
1895
25
1896
37
1897
15
1898
16
1899
24
1900
16
1901
26
1902
20
1903
29
1904
16
1905
12
1906
29
1907
21
1908
18
1909
15
1910
10
1911
33
1912
13
1913
19
1914
26
1915
21
1916
18
1917
27
1918
25
1919
15
1920
13
1921
19
1922
12
1923
15
1924
7
1926
32
1927
16
1928
26
1929
38
1930
25
1931
22
1932
27
1933
34
1934
27
1935
19
1936
24
1937
14
1938
28
1939
16
1940
20
1941
22
1942
22
1943
26
1944
21
1945
28
1946
30
1947
19
1948
22
1949
26
1950
22
1951
21
1952
12
1953
29
1954
25
1955
16
1956
26
1957
23
1958
7
1959
14
1960
11
1961
20
1962
13
All-Time Record Progression
5 new records
5 all-time records were set at Worcester between 29 December 1933 and 4 March 1960. Each dot is a new record.
When Worcester set new all-time records
Date
Kind
Detail
1933-12-29
Record low minimum temperature
Record low minimum temperature -27.2 C (-17.0 F)
1934-02-09
Record low minimum temperature
Record low minimum temperature -28.9 C (-20.0 F)
1943-02-16
Record low minimum temperature
Record low minimum temperature -31.1 C (-24.0 F)
1955-08-19
Record daily precipitation
Record daily precipitation 195.1 mm (7.7 in)
1960-03-04
Record daily snowfall
Record daily snowfall 50.8 cm (20.0 in)
Wettest Day of Each Month
Aug: 195.1 mm (7.7 in)
The wettest day on record for each calendar month at Worcester. The most was 195.1 mm (7.7 in) on 19 August 1955.
Record daily precipitation for each month at Worcester
Month
Record daily precipitation (mm)
Date
Jan
73.4 mm (2.9 in)
10 January 1935
Feb
99.1 mm (3.9 in)
19 February 1892
Mar
126.5 mm (5.0 in)
18 March 1936
Apr
65.3 mm (2.6 in)
12 April 1934
May
70.1 mm (2.8 in)
28 May 1906
Jun
67.8 mm (2.7 in)
24 June 1944
Jul
74.2 mm (2.9 in)
20 July 1959
Aug
195.1 mm (7.7 in)
19 August 1955
Sep
155.4 mm (6.1 in)
11 September 1954
Oct
191.5 mm (7.5 in)
13 October 1895
Nov
86.1 mm (3.4 in)
3 November 1951
Dec
91.4 mm (3.6 in)
15 December 1897
Period of Record Coverage
1892 to 1962
Complete yearUnder 90 percent of days
70 years of record at Worcester, 1892 to 1962. 9 years have data for under 90 percent of days and are left out of rankings: 1892, 1893, 1894, 1898, 1900, 1902, 1924, 1948 and others.
Cooler than the station meanWarmer than the station mean
One stripe for each of 59 complete years at Worcester, 1895 to 1961. Blue stripes are years cooler than the station's own mean of 9.0 C (48.2 F); red stripes are warmer. The coolest year was 1926, at 7.2 C (44.9 F), and the warmest was 1913, at 10.4 C (50.7 F). The strongest colour marks a difference of 1.9 C (3.4 F).
Annual mean temperature at Worcester as warming stripes, 1895 to 1961
Year
Annual mean temperature
Difference from the station mean
1895
8.8 C
-0.16 C
1896
8.8 C
-0.15 C
1897
9.2 C
+0.17 C
1901
9.0 C
+0.00 C
1903
9.0 C
+0.02 C
1904
7.7 C
-1.31 C
1905
8.6 C
-0.34 C
1906
9.5 C
+0.47 C
1907
8.3 C
-0.66 C
1908
9.6 C
+0.65 C
1909
9.0 C
-0.03 C
1910
9.4 C
+0.44 C
1911
9.5 C
+0.51 C
1912
9.2 C
+0.26 C
1913
10.4 C
+1.40 C
1914
9.1 C
+0.10 C
1915
9.9 C
+0.90 C
1916
9.1 C
+0.12 C
1917
8.0 C
-1.03 C
1919
9.6 C
+0.66 C
1920
9.0 C
+0.01 C
1921
10.0 C
+1.06 C
1922
9.2 C
+0.23 C
1923
8.8 C
-0.19 C
1926
7.2 C
-1.81 C
1927
8.7 C
-0.27 C
1928
8.4 C
-0.57 C
1929
8.5 C
-0.47 C
1930
9.2 C
+0.22 C
1931
9.7 C
+0.73 C
1932
9.2 C
+0.17 C
1933
8.8 C
-0.22 C
1934
8.3 C
-0.69 C
1935
8.3 C
-0.68 C
1936
8.6 C
-0.35 C
1937
9.3 C
+0.28 C
1938
9.4 C
+0.45 C
1939
8.4 C
-0.55 C
1940
7.7 C
-1.32 C
1941
9.2 C
+0.18 C
1942
9.0 C
+0.02 C
1943
8.3 C
-0.71 C
1944
8.9 C
-0.04 C
1945
8.9 C
-0.08 C
1946
9.1 C
+0.09 C
1947
8.8 C
-0.15 C
1949
10.2 C
+1.25 C
1950
8.7 C
-0.26 C
1951
9.3 C
+0.28 C
1952
9.4 C
+0.45 C
1953
10.2 C
+1.20 C
1954
9.1 C
+0.13 C
1955
9.2 C
+0.25 C
1956
8.6 C
-0.42 C
1957
9.7 C
+0.67 C
1958
8.2 C
-0.83 C
1959
9.2 C
+0.19 C
1960
8.7 C
-0.29 C
1961
8.9 C
-0.11 C
The fitted trend in annual mean temperature here over 1895 to 1961 is 0.00 C (-0.09 to 0.09) per decade. The interval includes zero, so the trend is not clearly different from zero. In Fahrenheit: 0.00 F (-0.16 to 0.15) per decade. The slope is a straight line fitted to 59 complete years; the brackets give its 95 percent interval.
Fitted temperature trends per decade at Worcester
Measure
Per decade (C)
Per decade (F)
Period
Complete years
Reading
Annual mean temperature
0.00 C (-0.09 to 0.09) per decade
0.00 F (-0.16 to 0.15) per decade
1895 to 1961
59
Not clearly different from zero
Mean daily maximum
0.3 C (0.2 to 0.4) per decade
0.5 F (0.3 to 0.6) per decade
1895 to 1961
59
Rise
Mean daily minimum
-0.3 C (-0.4 to -0.1) per decade
-0.5 F (-0.7 to -0.3) per decade
1895 to 1961
59
Fall
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
1892 to 1962
Yearly extremes at Worcester: 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)
1911
33.9 C (93.0 F)
70
Coldest night (TNn)
-31.1 C (-24.0 F)
1943
-21.7 C (-7.1 F)
70
Wettest day (Rx1day)
195.1 mm (7.7 in)
1955
57.5 mm (2.3 in)
70
Wettest five days (Rx5day)
318.0 mm (12.5 in)
1955
88.0 mm (3.5 in)
70
Longest dry spell (CDD)
36 days
1915
17 days
70
Hottest day (TXx)
The hottest day of the year at Worcester, 1892 to 1962. The record is 38.9 C (102.0 F) in 1911, marked on the chart; the median year is 33.9 C (93.0 F).
Hottest day (TXx) at Worcester by year
Year
Hottest day (TXx)
1892
35.0 C (95.0 F)
1893
32.8 C (91.0 F)
1894
34.4 C (93.9 F)
1895
31.7 C (89.1 F)
1896
32.8 C (91.0 F)
1897
33.3 C (91.9 F)
1898
32.8 C (91.0 F)
1899
33.9 C (93.0 F)
1900
33.9 C (93.0 F)
1901
36.1 C (97.0 F)
1902
32.2 C (90.0 F)
1903
35.6 C (96.1 F)
1904
34.4 C (93.9 F)
1905
33.9 C (93.0 F)
1906
33.9 C (93.0 F)
1907
35.0 C (95.0 F)
1908
35.6 C (96.1 F)
1909
33.9 C (93.0 F)
1910
34.4 C (93.9 F)
1911
38.9 C (102.0 F)
1912
35.0 C (95.0 F)
1913
34.4 C (93.9 F)
1914
32.8 C (91.0 F)
1915
33.3 C (91.9 F)
1916
34.4 C (93.9 F)
1917
35.6 C (96.1 F)
1918
34.4 C (93.9 F)
1919
37.2 C (99.0 F)
1920
33.3 C (91.9 F)
1921
33.3 C (91.9 F)
1922
32.2 C (90.0 F)
1923
33.9 C (93.0 F)
1924
34.4 C (93.9 F)
1926
37.2 C (99.0 F)
1927
32.2 C (90.0 F)
1928
33.9 C (93.0 F)
1929
35.6 C (96.1 F)
1930
34.4 C (93.9 F)
1931
33.9 C (93.0 F)
1932
32.2 C (90.0 F)
1933
35.6 C (96.1 F)
1934
33.9 C (93.0 F)
1935
32.8 C (91.0 F)
1936
36.1 C (97.0 F)
1937
35.6 C (96.1 F)
1938
33.9 C (93.0 F)
1939
33.3 C (91.9 F)
1940
33.9 C (93.0 F)
1941
34.4 C (93.9 F)
1942
32.8 C (91.0 F)
1943
33.3 C (91.9 F)
1944
37.2 C (99.0 F)
1945
33.9 C (93.0 F)
1946
33.3 C (91.9 F)
1947
35.6 C (96.1 F)
1948
37.2 C (99.0 F)
1949
37.2 C (99.0 F)
1950
31.7 C (89.1 F)
1951
31.7 C (89.1 F)
1952
35.0 C (95.0 F)
1953
37.8 C (100.0 F)
1954
32.8 C (91.0 F)
1955
35.6 C (96.1 F)
1956
34.4 C (93.9 F)
1957
33.9 C (93.0 F)
1958
32.8 C (91.0 F)
1959
32.8 C (91.0 F)
1960
31.1 C (88.0 F)
1961
31.7 C (89.1 F)
1962
33.9 C (93.0 F)
Coldest night (TNn)
The coldest night of the year at Worcester, 1892 to 1962. The record is -31.1 C (-24.0 F) in 1943, marked on the chart; the median year is -21.7 C (-7.1 F).
Coldest night (TNn) at Worcester by year
Year
Coldest night (TNn)
1892
-20.6 C (-5.1 F)
1893
-20.0 C (-4.0 F)
1894
-23.9 C (-11.0 F)
1895
-23.3 C (-9.9 F)
1896
-25.6 C (-14.1 F)
1897
-16.7 C (1.9 F)
1898
-21.1 C (-6.0 F)
1899
-23.3 C (-9.9 F)
1900
-22.2 C (-8.0 F)
1901
-22.2 C (-8.0 F)
1902
-25.0 C (-13.0 F)
1903
-21.1 C (-6.0 F)
1904
-22.8 C (-9.0 F)
1905
-18.3 C (-0.9 F)
1906
-20.0 C (-4.0 F)
1907
-23.3 C (-9.9 F)
1908
-21.7 C (-7.1 F)
1909
-18.3 C (-0.9 F)
1910
-21.1 C (-6.0 F)
1911
-16.7 C (1.9 F)
1912
-22.8 C (-9.0 F)
1913
-16.1 C (3.0 F)
1914
-25.0 C (-13.0 F)
1915
-16.1 C (3.0 F)
1916
-20.0 C (-4.0 F)
1917
-25.6 C (-14.1 F)
1918
-26.1 C (-15.0 F)
1919
-23.9 C (-11.0 F)
1920
-23.3 C (-9.9 F)
1921
-21.1 C (-6.0 F)
1922
-23.3 C (-9.9 F)
1923
-19.4 C (-2.9 F)
1924
-22.8 C (-9.0 F)
1926
-18.9 C (-2.0 F)
1927
-21.7 C (-7.1 F)
1928
-21.1 C (-6.0 F)
1929
-21.1 C (-6.0 F)
1930
-20.6 C (-5.1 F)
1931
-21.7 C (-7.1 F)
1932
-21.7 C (-7.1 F)
1933
-27.2 C (-17.0 F)
1934
-28.9 C (-20.0 F)
1935
-27.2 C (-17.0 F)
1936
-20.6 C (-5.1 F)
1937
-14.4 C (6.1 F)
1938
-23.3 C (-9.9 F)
1939
-18.3 C (-0.9 F)
1940
-22.8 C (-9.0 F)
1941
-18.9 C (-2.0 F)
1942
-26.7 C (-16.1 F)
1943
-31.1 C (-24.0 F)
1944
-22.2 C (-8.0 F)
1945
-22.8 C (-9.0 F)
1946
-21.1 C (-6.0 F)
1947
-20.0 C (-4.0 F)
1948
-25.6 C (-14.1 F)
1949
-19.4 C (-2.9 F)
1950
-22.2 C (-8.0 F)
1951
-20.6 C (-5.1 F)
1952
-20.6 C (-5.1 F)
1953
-16.1 C (3.0 F)
1954
-22.2 C (-8.0 F)
1955
-23.3 C (-9.9 F)
1956
-18.3 C (-0.9 F)
1957
-27.8 C (-18.0 F)
1958
-23.3 C (-9.9 F)
1959
-20.0 C (-4.0 F)
1960
-17.8 C (0.0 F)
1961
-23.3 C (-9.9 F)
1962
-22.2 C (-8.0 F)
Wettest day (Rx1day)
The wettest day of the year at Worcester, 1892 to 1962. The record is 195.1 mm (7.7 in) in 1955, marked on the chart; the median year is 57.5 mm (2.3 in).
Wettest day (Rx1day) at Worcester by year
Year
Wettest day (Rx1day)
1892
99.1 mm (3.9 in)
1893
68.1 mm (2.7 in)
1894
38.1 mm (1.5 in)
1895
191.5 mm (7.5 in)
1896
68.6 mm (2.7 in)
1897
91.4 mm (3.6 in)
1898
76.7 mm (3.0 in)
1899
49.3 mm (1.9 in)
1900
80.3 mm (3.2 in)
1901
57.2 mm (2.3 in)
1902
63.8 mm (2.5 in)
1903
64.8 mm (2.6 in)
1904
57.7 mm (2.3 in)
1905
86.1 mm (3.4 in)
1906
70.1 mm (2.8 in)
1907
75.7 mm (3.0 in)
1908
47.0 mm (1.9 in)
1909
46.5 mm (1.8 in)
1910
32.3 mm (1.3 in)
1911
43.7 mm (1.7 in)
1912
40.9 mm (1.6 in)
1913
51.8 mm (2.0 in)
1914
49.5 mm (1.9 in)
1915
54.9 mm (2.2 in)
1916
48.8 mm (1.9 in)
1917
51.8 mm (2.0 in)
1918
37.3 mm (1.5 in)
1919
38.6 mm (1.5 in)
1920
50.3 mm (2.0 in)
1921
34.8 mm (1.4 in)
1922
46.0 mm (1.8 in)
1923
67.8 mm (2.7 in)
1924
46.2 mm (1.8 in)
1926
39.6 mm (1.6 in)
1927
66.5 mm (2.6 in)
1928
39.1 mm (1.5 in)
1929
46.7 mm (1.8 in)
1930
38.1 mm (1.5 in)
1931
59.7 mm (2.4 in)
1932
105.7 mm (4.2 in)
1933
118.6 mm (4.7 in)
1934
73.7 mm (2.9 in)
1935
73.4 mm (2.9 in)
1936
126.5 mm (5.0 in)
1937
64.3 mm (2.5 in)
1938
87.4 mm (3.4 in)
1939
74.2 mm (2.9 in)
1940
57.2 mm (2.3 in)
1941
47.2 mm (1.9 in)
1942
54.4 mm (2.1 in)
1943
54.6 mm (2.1 in)
1944
67.8 mm (2.7 in)
1945
40.6 mm (1.6 in)
1946
55.1 mm (2.2 in)
1947
74.4 mm (2.9 in)
1948
54.6 mm (2.1 in)
1949
43.7 mm (1.7 in)
1950
62.5 mm (2.5 in)
1951
86.1 mm (3.4 in)
1952
66.3 mm (2.6 in)
1953
51.1 mm (2.0 in)
1954
155.4 mm (6.1 in)
1955
195.1 mm (7.7 in)
1956
67.8 mm (2.7 in)
1957
44.7 mm (1.8 in)
1958
49.5 mm (1.9 in)
1959
81.8 mm (3.2 in)
1960
126.5 mm (5.0 in)
1961
101.1 mm (4.0 in)
1962
53.3 mm (2.1 in)
Wettest five days (Rx5day)
The wettest five days of the year at Worcester, 1892 to 1962. The record is 318.0 mm (12.5 in) in 1955, marked on the chart; the median year is 88.0 mm (3.5 in).
Wettest five days (Rx5day) at Worcester by year
Year
Wettest five days (Rx5day)
1892
144.8 mm (5.7 in)
1893
105.9 mm (4.2 in)
1894
62.0 mm (2.4 in)
1895
192.8 mm (7.6 in)
1896
96.5 mm (3.8 in)
1897
104.4 mm (4.1 in)
1898
78.7 mm (3.1 in)
1899
74.5 mm (2.9 in)
1900
105.7 mm (4.2 in)
1901
89.1 mm (3.5 in)
1902
68.9 mm (2.7 in)
1903
109.1 mm (4.3 in)
1904
69.6 mm (2.7 in)
1905
139.4 mm (5.5 in)
1906
96.8 mm (3.8 in)
1907
113.0 mm (4.4 in)
1908
109.5 mm (4.3 in)
1909
65.8 mm (2.6 in)
1910
65.8 mm (2.6 in)
1911
86.8 mm (3.4 in)
1912
78.5 mm (3.1 in)
1913
95.5 mm (3.8 in)
1914
73.2 mm (2.9 in)
1915
91.2 mm (3.6 in)
1916
61.7 mm (2.4 in)
1917
57.1 mm (2.2 in)
1918
65.9 mm (2.6 in)
1919
71.9 mm (2.8 in)
1920
58.2 mm (2.3 in)
1921
72.4 mm (2.9 in)
1922
99.1 mm (3.9 in)
1923
86.9 mm (3.4 in)
1924
52.8 mm (2.1 in)
1926
62.2 mm (2.4 in)
1927
93.7 mm (3.7 in)
1928
65.0 mm (2.6 in)
1929
67.9 mm (2.7 in)
1930
56.1 mm (2.2 in)
1931
128.8 mm (5.1 in)
1932
142.0 mm (5.6 in)
1933
172.4 mm (6.8 in)
1934
92.0 mm (3.6 in)
1935
80.7 mm (3.2 in)
1936
162.6 mm (6.4 in)
1937
108.0 mm (4.3 in)
1938
212.6 mm (8.4 in)
1939
83.9 mm (3.3 in)
1940
82.5 mm (3.2 in)
1941
54.7 mm (2.2 in)
1942
85.1 mm (3.4 in)
1943
85.6 mm (3.4 in)
1944
114.9 mm (4.5 in)
1945
70.2 mm (2.8 in)
1946
72.0 mm (2.8 in)
1947
95.6 mm (3.8 in)
1948
78.6 mm (3.1 in)
1949
51.6 mm (2.0 in)
1950
68.6 mm (2.7 in)
1951
121.9 mm (4.8 in)
1952
133.4 mm (5.3 in)
1953
113.9 mm (4.5 in)
1954
161.5 mm (6.4 in)
1955
318.0 mm (12.5 in)
1956
116.6 mm (4.6 in)
1957
74.9 mm (2.9 in)
1958
77.1 mm (3.0 in)
1959
127.1 mm (5.0 in)
1960
136.9 mm (5.4 in)
1961
133.1 mm (5.2 in)
1962
147.3 mm (5.8 in)
Longest dry spell (CDD)
The longest dry spell of the year at Worcester, 1892 to 1962. The record is 36 days in 1915, marked on the chart; the median year is 17 days.
Longest dry spell (CDD) at Worcester by year
Year
Longest dry spell (CDD)
1892
12 days
1893
11 days
1894
18 days
1895
15 days
1896
16 days
1897
17 days
1898
10 days
1899
16 days
1900
22 days
1901
18 days
1902
15 days
1903
18 days
1904
17 days
1905
15 days
1906
16 days
1907
12 days
1908
21 days
1909
14 days
1910
14 days
1911
21 days
1912
21 days
1913
14 days
1914
21 days
1915
36 days
1916
14 days
1917
22 days
1918
19 days
1919
15 days
1920
26 days
1921
19 days
1922
20 days
1923
16 days
1924
23 days
1926
13 days
1927
14 days
1928
17 days
1929
20 days
1930
22 days
1931
17 days
1932
19 days
1933
11 days
1934
18 days
1935
16 days
1936
15 days
1937
13 days
1938
16 days
1939
25 days
1940
17 days
1941
19 days
1942
16 days
1943
19 days
1944
15 days
1945
14 days
1946
18 days
1947
36 days
1948
22 days
1949
17 days
1950
18 days
1951
11 days
1952
21 days
1953
22 days
1954
12 days
1955
25 days
1956
16 days
1957
18 days
1958
21 days
1959
13 days
1960
18 days
1961
21 days
1962
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
59 years with a frost
Across 59 years with a frost, the median last spring frost at Worcester falls on 29 April and the median first autumn frost on 10 October, which leaves a median of 161 days between them.
Fitted over all years, the growing season changes by -8.8 days per decade at this station.
Frost dates and growing season at Worcester
Measure
Median, all years
Earliest period
Recent period (1931 to 1961)
Recent against earliest
Fitted trend
Last spring frost
29 April
n/a
7 May
n/a
+4.4 days per decade
First autumn frost
10 October
n/a
2 October
n/a
-4.4 days per decade
Growing days
161 days
n/a
149 days
n/a
-8.8 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
63 years, 1893 to 1961
A day with at least 58.4 mm (2.3 in) of rain is expected about once in 2 years. A day with at least 210.3 mm (8.3 in) of rain is expected about once in 100 years.
Rainfall return levels at Worcester: the daily rain expected about once in a given number of years
Expected about once in
A day with at least
Note
2 years
58.4 mm (2.3 in)
5 years
82.6 mm (3.3 in)
10 years
103.7 mm (4.1 in)
25 years
138.1 mm (5.4 in)
50 years
170.6 mm (6.7 in)
100 years
210.3 mm (8.3 in)
Longer than the 63 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, 63 years of values from 1893 to 1961.
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: 195.1 mm (7.7 in) in 1955; 191.5 mm (7.5 in) in 1895; 155.4 mm (6.1 in) in 1954.
Station Changes
No change in the annual mean temperature of this station was found against its neighbours.
Download the Data
Data for Worcester standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Worcester 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.