Record envelope, standing records and threshold days for Jamestown (USC00304206), New York, United States, with 66 years of record.
Key Facts for Jamestown
Jamestown (USC00304206) is a weather station in New York, United States at 42.10 latitude and -79.25 longitude, 424 m (1,391 ft) above sea level.
The station reports from 1895 to 1960, 66 years of record.
1,464 records set at Jamestown still stand.
Records are tracked for tmax, tmin, prcp, snow, snwd: an element needs 30 years of data to be eligible.
Jamestown tied a daily record high minimum temperature of 20.6 C (69.1 F) on 30 August 1960.
About the Station
Location: New York, United States, 42.10 latitude, -79.25 longitude.
Elevation: 424 m (1,391 ft).
Period of record: 1895 to 1960, 66 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 Jamestown. 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 Jamestown, 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)
-35.0 C (-31.0 F)
n/a
n/a
Feb
21.1 C (70.0 F)
-31.7 C (-25.1 F)
n/a
n/a
Mar
27.8 C (82.0 F)
-23.3 C (-9.9 F)
n/a
n/a
Apr
32.8 C (91.0 F)
-18.3 C (-0.9 F)
n/a
n/a
May
33.9 C (93.0 F)
-3.9 C (25.0 F)
n/a
n/a
Jun
36.7 C (98.1 F)
0.0 C (32.0 F)
n/a
n/a
Jul
37.8 C (100.0 F)
2.8 C (37.0 F)
n/a
n/a
Aug
37.2 C (99.0 F)
1.7 C (35.1 F)
n/a
n/a
Sep
36.7 C (98.1 F)
-4.4 C (24.1 F)
n/a
n/a
Oct
31.1 C (88.0 F)
-8.3 C (17.1 F)
n/a
n/a
Nov
26.7 C (80.1 F)
-21.1 C (-6.0 F)
n/a
n/a
Dec
20.0 C (68.0 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 Jamestown still stand. 1896 holds the most, with 47.
Standing records at Jamestown by the year they were set
Year set
Standing records
1895
8
1896
47
1897
30
1898
17
1899
38
1900
25
1901
21
1902
33
1903
42
1904
34
1905
23
1906
33
1907
20
1908
25
1909
6
1917
26
1918
29
1922
5
1923
28
1924
31
1925
38
1926
30
1927
39
1928
27
1929
40
1930
42
1931
41
1932
28
1933
40
1934
37
1935
18
1936
37
1937
16
1938
18
1939
18
1940
34
1941
29
1942
24
1943
21
1944
25
1945
34
1946
27
1947
31
1948
21
1949
19
1950
28
1951
22
1952
16
1953
22
1954
21
1955
14
1956
18
1957
19
1958
10
1959
25
1960
14
All-Time Record Progression
1 new records
1 all-time records were set at Jamestown between 16 October 1954 and 16 October 1954. Each dot is a new record.
When Jamestown set new all-time records
Date
Kind
Detail
1954-10-16
Record daily precipitation
Record daily precipitation 114.8 mm (4.5 in)
Wettest Day of Each Month
Oct: 114.8 mm (4.5 in)
The wettest day on record for each calendar month at Jamestown. The most was 114.8 mm (4.5 in) on 16 October 1954.
Record daily precipitation for each month at Jamestown
Month
Record daily precipitation (mm)
Date
Jan
41.1 mm (1.6 in)
2 January 1940
Feb
42.2 mm (1.7 in)
13 February 1950
Mar
58.4 mm (2.3 in)
17 March 1936
Apr
66.8 mm (2.6 in)
5 April 1947
May
48.3 mm (1.9 in)
19 May 1949
Jun
99.1 mm (3.9 in)
24 June 1928
Jul
82.6 mm (3.3 in)
9 July 1904
Aug
113.0 mm (4.4 in)
24 August 1922
Sep
82.6 mm (3.3 in)
4 September 1944
Oct
114.8 mm (4.5 in)
16 October 1954
Nov
80.0 mm (3.1 in)
17 November 1927
Dec
36.8 mm (1.4 in)
6 December 1923
Period of Record Coverage
1895 to 1960
Complete yearUnder 90 percent of days
56 years of record at Jamestown, 1895 to 1960. 7 years have data for under 90 percent of days and are left out of rankings: 1895, 1901, 1909, 1917, 1918, 1922, 1960.
Cooler than the station meanWarmer than the station mean
One stripe for each of 46 complete years at Jamestown, 1896 to 1959. Blue stripes are years cooler than the station's own mean of 9.2 C (48.5 F); red stripes are warmer. The coolest year was 1904, at 6.8 C (44.2 F), and the warmest was 1931, at 10.7 C (51.3 F). The strongest colour marks a difference of 2.5 C (4.5 F).
Annual mean temperature at Jamestown as warming stripes, 1896 to 1959
Year
Annual mean temperature
Difference from the station mean
1896
8.4 C
-0.72 C
1897
8.5 C
-0.67 C
1898
9.3 C
+0.12 C
1899
8.7 C
-0.46 C
1900
9.2 C
+0.06 C
1903
8.3 C
-0.91 C
1904
6.8 C
-2.40 C
1905
7.9 C
-1.25 C
1907
8.0 C
-1.21 C
1908
9.4 C
+0.26 C
1923
9.0 C
-0.20 C
1925
8.8 C
-0.40 C
1926
7.6 C
-1.53 C
1927
9.5 C
+0.32 C
1928
9.1 C
-0.05 C
1929
8.7 C
-0.43 C
1930
9.3 C
+0.13 C
1931
10.7 C
+1.56 C
1932
9.8 C
+0.66 C
1933
10.2 C
+1.04 C
1934
9.3 C
+0.13 C
1935
8.8 C
-0.32 C
1936
8.7 C
-0.45 C
1937
8.9 C
-0.22 C
1938
9.9 C
+0.72 C
1939
9.8 C
+0.63 C
1940
8.4 C
-0.79 C
1941
9.8 C
+0.66 C
1942
9.5 C
+0.30 C
1943
8.8 C
-0.37 C
1944
9.7 C
+0.53 C
1945
9.2 C
+0.08 C
1946
10.1 C
+0.94 C
1947
9.0 C
-0.19 C
1948
9.1 C
-0.07 C
1949
10.2 C
+1.02 C
1950
8.9 C
-0.26 C
1951
9.2 C
+0.06 C
1952
9.7 C
+0.55 C
1953
10.5 C
+1.29 C
1954
9.7 C
+0.54 C
1955
10.1 C
+0.93 C
1956
9.1 C
-0.06 C
1957
9.6 C
+0.46 C
1958
8.4 C
-0.77 C
1959
9.9 C
+0.76 C
The annual mean temperature here has risen by 0.2 C (0.1 to 0.3) per decade over 1896 to 1959. In Fahrenheit: 0.4 F (0.2 to 0.6) per decade. The slope is a straight line fitted to 46 complete years; the brackets give its 95 percent interval.
Fitted temperature trends per decade at Jamestown
Measure
Per decade (C)
Per decade (F)
Period
Complete years
Reading
Annual mean temperature
0.2 C (0.1 to 0.3) per decade
0.4 F (0.2 to 0.6) per decade
1896 to 1959
46
Rise
Mean daily maximum
0.3 C (0.1 to 0.4) per decade
0.5 F (0.2 to 0.7) per decade
1896 to 1959
46
Rise
Mean daily minimum
0.16 C (0.03 to 0.29) per decade
0.3 F (0.1 to 0.5) per decade
1896 to 1959
46
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
1895 to 1960
Yearly extremes at Jamestown: 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)
1936
34.4 C (93.9 F)
56
Coldest night (TNn)
-35.0 C (-31.0 F)
1904
-21.9 C (-7.5 F)
56
Wettest day (Rx1day)
114.8 mm (4.5 in)
1954
48.9 mm (1.9 in)
56
Wettest five days (Rx5day)
142.3 mm (5.6 in)
1938
76.4 mm (3.0 in)
56
Longest dry spell (CDD)
31 days
1930
15 days
56
Hottest day (TXx)
The hottest day of the year at Jamestown, 1895 to 1960. The record is 37.8 C (100.0 F) in 1936, marked on the chart; the median year is 34.4 C (93.9 F).
Hottest day (TXx) at Jamestown by year
Year
Hottest day (TXx)
1895
19.4 C (66.9 F)
1896
31.7 C (89.1 F)
1897
35.0 C (95.0 F)
1898
32.8 C (91.0 F)
1899
31.7 C (89.1 F)
1900
32.2 C (90.0 F)
1901
27.8 C (82.0 F)
1902
31.7 C (89.1 F)
1903
34.4 C (93.9 F)
1904
32.8 C (91.0 F)
1905
32.2 C (90.0 F)
1906
32.8 C (91.0 F)
1907
31.7 C (89.1 F)
1908
33.3 C (91.9 F)
1909
16.7 C (62.1 F)
1917
37.2 C (99.0 F)
1918
36.1 C (97.0 F)
1922
34.4 C (93.9 F)
1923
34.4 C (93.9 F)
1924
36.1 C (97.0 F)
1925
33.9 C (93.0 F)
1926
34.4 C (93.9 F)
1927
34.4 C (93.9 F)
1928
35.6 C (96.1 F)
1929
33.9 C (93.0 F)
1930
35.0 C (95.0 F)
1931
36.7 C (98.1 F)
1932
33.3 C (91.9 F)
1933
36.7 C (98.1 F)
1934
36.7 C (98.1 F)
1935
37.2 C (99.0 F)
1936
37.8 C (100.0 F)
1937
32.8 C (91.0 F)
1938
33.9 C (93.0 F)
1939
35.0 C (95.0 F)
1940
35.6 C (96.1 F)
1941
36.1 C (97.0 F)
1942
32.8 C (91.0 F)
1943
34.4 C (93.9 F)
1944
35.0 C (95.0 F)
1945
33.3 C (91.9 F)
1946
33.3 C (91.9 F)
1947
35.0 C (95.0 F)
1948
36.1 C (97.0 F)
1949
34.4 C (93.9 F)
1950
32.2 C (90.0 F)
1951
33.3 C (91.9 F)
1952
35.0 C (95.0 F)
1953
36.7 C (98.1 F)
1954
34.4 C (93.9 F)
1955
35.0 C (95.0 F)
1956
33.3 C (91.9 F)
1957
34.4 C (93.9 F)
1958
32.2 C (90.0 F)
1959
33.9 C (93.0 F)
1960
32.8 C (91.0 F)
Coldest night (TNn)
The coldest night of the year at Jamestown, 1895 to 1960. The record is -35.0 C (-31.0 F) in 1904, marked on the chart; the median year is -21.9 C (-7.5 F).
Coldest night (TNn) at Jamestown by year
Year
Coldest night (TNn)
1895
-21.1 C (-6.0 F)
1896
-26.1 C (-15.0 F)
1897
-21.7 C (-7.1 F)
1898
-20.6 C (-5.1 F)
1899
-26.7 C (-16.1 F)
1900
-20.6 C (-5.1 F)
1901
-22.2 C (-8.0 F)
1902
-23.3 C (-9.9 F)
1903
-22.2 C (-8.0 F)
1904
-35.0 C (-31.0 F)
1905
-27.2 C (-17.0 F)
1906
-25.6 C (-14.1 F)
1907
-27.2 C (-17.0 F)
1908
-26.1 C (-15.0 F)
1909
-20.6 C (-5.1 F)
1917
-27.2 C (-17.0 F)
1918
-28.3 C (-18.9 F)
1922
-13.3 C (8.1 F)
1923
-21.1 C (-6.0 F)
1924
-23.3 C (-9.9 F)
1925
-24.4 C (-11.9 F)
1926
-22.8 C (-9.0 F)
1927
-24.4 C (-11.9 F)
1928
-22.2 C (-8.0 F)
1929
-21.7 C (-7.1 F)
1930
-21.7 C (-7.1 F)
1931
-15.6 C (3.9 F)
1932
-16.7 C (1.9 F)
1933
-23.3 C (-9.9 F)
1934
-31.7 C (-25.1 F)
1935
-23.3 C (-9.9 F)
1936
-23.3 C (-9.9 F)
1937
-20.0 C (-4.0 F)
1938
-19.4 C (-2.9 F)
1939
-18.9 C (-2.0 F)
1940
-23.3 C (-9.9 F)
1941
-19.4 C (-2.9 F)
1942
-21.7 C (-7.1 F)
1943
-26.1 C (-15.0 F)
1944
-22.2 C (-8.0 F)
1945
-25.0 C (-13.0 F)
1946
-20.0 C (-4.0 F)
1947
-18.3 C (-0.9 F)
1948
-25.6 C (-14.1 F)
1949
-16.1 C (3.0 F)
1950
-21.7 C (-7.1 F)
1951
-21.1 C (-6.0 F)
1952
-18.3 C (-0.9 F)
1953
-13.9 C (7.0 F)
1954
-16.1 C (3.0 F)
1955
-22.2 C (-8.0 F)
1956
-16.1 C (3.0 F)
1957
-23.9 C (-11.0 F)
1958
-20.0 C (-4.0 F)
1959
-20.6 C (-5.1 F)
1960
-19.4 C (-2.9 F)
Wettest day (Rx1day)
The wettest day of the year at Jamestown, 1895 to 1960. The record is 114.8 mm (4.5 in) in 1954, marked on the chart; the median year is 48.9 mm (1.9 in).
Wettest day (Rx1day) at Jamestown by year
Year
Wettest day (Rx1day)
1895
29.0 mm (1.1 in)
1896
36.3 mm (1.4 in)
1897
40.4 mm (1.6 in)
1898
44.5 mm (1.8 in)
1899
38.1 mm (1.5 in)
1900
38.1 mm (1.5 in)
1901
41.9 mm (1.6 in)
1902
45.2 mm (1.8 in)
1903
38.1 mm (1.5 in)
1904
82.6 mm (3.3 in)
1905
52.3 mm (2.1 in)
1906
50.8 mm (2.0 in)
1907
47.8 mm (1.9 in)
1908
40.9 mm (1.6 in)
1909
26.2 mm (1.0 in)
1917
29.0 mm (1.1 in)
1918
45.7 mm (1.8 in)
1922
113.0 mm (4.4 in)
1923
36.8 mm (1.4 in)
1924
77.5 mm (3.1 in)
1925
43.9 mm (1.7 in)
1926
53.3 mm (2.1 in)
1927
80.0 mm (3.1 in)
1928
99.1 mm (3.9 in)
1929
36.6 mm (1.4 in)
1930
38.9 mm (1.5 in)
1931
46.5 mm (1.8 in)
1932
51.3 mm (2.0 in)
1933
70.9 mm (2.8 in)
1934
42.2 mm (1.7 in)
1935
62.5 mm (2.5 in)
1936
58.4 mm (2.3 in)
1937
45.7 mm (1.8 in)
1938
81.3 mm (3.2 in)
1939
52.8 mm (2.1 in)
1940
59.7 mm (2.4 in)
1941
50.8 mm (2.0 in)
1942
57.7 mm (2.3 in)
1943
61.0 mm (2.4 in)
1944
82.6 mm (3.3 in)
1945
57.7 mm (2.3 in)
1946
36.8 mm (1.4 in)
1947
66.8 mm (2.6 in)
1948
53.3 mm (2.1 in)
1949
48.3 mm (1.9 in)
1950
70.9 mm (2.8 in)
1951
49.5 mm (1.9 in)
1952
29.0 mm (1.1 in)
1953
57.4 mm (2.3 in)
1954
114.8 mm (4.5 in)
1955
39.6 mm (1.6 in)
1956
40.9 mm (1.6 in)
1957
70.4 mm (2.8 in)
1958
44.5 mm (1.8 in)
1959
84.3 mm (3.3 in)
1960
36.1 mm (1.4 in)
Wettest five days (Rx5day)
The wettest five days of the year at Jamestown, 1895 to 1960. The record is 142.3 mm (5.6 in) in 1938, marked on the chart; the median year is 76.4 mm (3.0 in).
Wettest five days (Rx5day) at Jamestown by year
Year
Wettest five days (Rx5day)
1895
48.8 mm (1.9 in)
1896
71.6 mm (2.8 in)
1897
90.5 mm (3.6 in)
1898
65.7 mm (2.6 in)
1899
65.5 mm (2.6 in)
1900
70.1 mm (2.8 in)
1901
76.2 mm (3.0 in)
1902
99.7 mm (3.9 in)
1903
63.5 mm (2.5 in)
1904
125.3 mm (4.9 in)
1905
70.1 mm (2.8 in)
1906
62.2 mm (2.4 in)
1907
62.8 mm (2.5 in)
1908
46.7 mm (1.8 in)
1909
60.2 mm (2.4 in)
1917
47.5 mm (1.9 in)
1918
96.5 mm (3.8 in)
1922
42.9 mm (1.7 in)
1923
50.9 mm (2.0 in)
1924
104.7 mm (4.1 in)
1925
81.3 mm (3.2 in)
1926
70.3 mm (2.8 in)
1927
101.8 mm (4.0 in)
1928
140.8 mm (5.5 in)
1929
64.3 mm (2.5 in)
1930
76.6 mm (3.0 in)
1931
57.9 mm (2.3 in)
1932
81.5 mm (3.2 in)
1933
103.9 mm (4.1 in)
1934
60.0 mm (2.4 in)
1935
135.9 mm (5.4 in)
1936
88.9 mm (3.5 in)
1937
89.9 mm (3.5 in)
1938
142.3 mm (5.6 in)
1939
73.1 mm (2.9 in)
1940
77.8 mm (3.1 in)
1941
63.2 mm (2.5 in)
1942
75.8 mm (3.0 in)
1943
83.3 mm (3.3 in)
1944
102.3 mm (4.0 in)
1945
92.0 mm (3.6 in)
1946
53.4 mm (2.1 in)
1947
85.9 mm (3.4 in)
1948
80.5 mm (3.2 in)
1949
95.3 mm (3.8 in)
1950
84.8 mm (3.3 in)
1951
64.0 mm (2.5 in)
1952
54.5 mm (2.1 in)
1953
61.4 mm (2.4 in)
1954
128.5 mm (5.1 in)
1955
62.4 mm (2.5 in)
1956
90.9 mm (3.6 in)
1957
91.5 mm (3.6 in)
1958
78.3 mm (3.1 in)
1959
97.2 mm (3.8 in)
1960
67.1 mm (2.6 in)
Longest dry spell (CDD)
The longest dry spell of the year at Jamestown, 1895 to 1960. The record is 31 days in 1930, marked on the chart; the median year is 15 days.
Longest dry spell (CDD) at Jamestown by year
Year
Longest dry spell (CDD)
1895
9 days
1896
14 days
1897
16 days
1898
15 days
1899
18 days
1900
12 days
1901
12 days
1902
10 days
1903
20 days
1904
15 days
1905
10 days
1906
10 days
1907
9 days
1908
20 days
1909
4 days
1917
22 days
1918
13 days
1922
16 days
1923
17 days
1924
23 days
1925
16 days
1926
10 days
1927
15 days
1928
16 days
1929
14 days
1930
31 days
1931
17 days
1932
16 days
1933
12 days
1934
20 days
1935
10 days
1936
18 days
1937
8 days
1938
15 days
1939
17 days
1940
12 days
1941
15 days
1942
19 days
1943
12 days
1944
17 days
1945
12 days
1946
12 days
1947
18 days
1948
19 days
1949
17 days
1950
17 days
1951
12 days
1952
13 days
1953
19 days
1954
14 days
1955
21 days
1956
14 days
1957
22 days
1958
12 days
1959
12 days
1960
14 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
46 years with a frost
Across 46 years with a frost, the median last spring frost at Jamestown falls on 11 May and the median first autumn frost on 4 October, which leaves a median of 146 days between them.
Fitted over all years, the growing season changes by -0.8 days per decade at this station.
Frost dates and growing season at Jamestown
Measure
Median, all years
Earliest period
Recent period (1930 to 1959)
Recent against earliest
Fitted trend
Last spring frost
11 May
n/a
11 May
n/a
+0.7 days per decade
First autumn frost
4 October
n/a
4 October
n/a
-0.1 days per decade
Growing days
146 days
n/a
144 days
n/a
-0.8 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
46 years, 1896 to 1959
A day with at least 51.2 mm (2.0 in) of rain is expected about once in 2 years. A day with at least 126.0 mm (5.0 in) of rain is expected about once in 100 years.
Rainfall return levels at Jamestown: the daily rain expected about once in a given number of years
Expected about once in
A day with at least
Note
2 years
51.2 mm (2.0 in)
5 years
67.7 mm (2.7 in)
10 years
79.8 mm (3.1 in)
25 years
96.9 mm (3.8 in)
50 years
110.9 mm (4.4 in)
Longer than the 46 years of record
100 years
126.0 mm (5.0 in)
Longer than the 46 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, 46 years of values from 1896 to 1959.
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: 114.8 mm (4.5 in) in 1954; 99.1 mm (3.9 in) in 1928; 84.3 mm (3.3 in) in 1959.
Station Changes
No change in the annual mean temperature of this station was found against its neighbours.
Download the Data
Data for Jamestown standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Jamestown 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.