Record envelope, standing records and threshold days for Jacksonville (USC00354216), Oregon, United States, with 56 years of record.
Key Facts for Jacksonville
Jacksonville (USC00354216) is a weather station in Oregon, United States at 42.30 latitude and -122.98 longitude, 500 m (1,640 ft) above sea level.
The station reports from 1893 to 1948, 56 years of record.
1,464 records set at Jacksonville still stand.
Records are tracked for tmax, tmin, prcp, snow: an element needs 30 years of data to be eligible.
Jacksonville set a daily record low minimum temperature of -5.0 C (23.0 F) on 9 November 1948.
About the Station
Location: Oregon, United States, 42.30 latitude, -122.98 longitude.
Elevation: 500 m (1,640 ft).
Period of record: 1893 to 1948, 56 years.
Eligible elements: tmax, tmin, prcp, snow.
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 Jacksonville. 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 Jacksonville, with 2026 drawn through them
Month
Highest record high
Lowest record low
2026 highest maximum
2026 lowest minimum
Jan
18.9 C (66.0 F)
-17.2 C (1.0 F)
n/a
n/a
Feb
24.4 C (75.9 F)
-15.0 C (5.0 F)
n/a
n/a
Mar
28.9 C (84.0 F)
-9.4 C (15.1 F)
n/a
n/a
Apr
33.9 C (93.0 F)
-5.6 C (21.9 F)
n/a
n/a
May
36.7 C (98.1 F)
-1.7 C (28.9 F)
n/a
n/a
Jun
40.0 C (104.0 F)
0.6 C (33.1 F)
n/a
n/a
Jul
42.8 C (109.0 F)
3.9 C (39.0 F)
n/a
n/a
Aug
41.1 C (106.0 F)
2.2 C (36.0 F)
n/a
n/a
Sep
38.9 C (102.0 F)
-1.7 C (28.9 F)
n/a
n/a
Oct
37.8 C (100.0 F)
-3.3 C (26.1 F)
n/a
n/a
Nov
23.9 C (75.0 F)
-11.1 C (12.0 F)
n/a
n/a
Dec
18.3 C (64.9 F)
-17.8 C (0.0 F)
n/a
n/a
Which Years Hold Standing Records
1,464 standing records
Year with most
1,464 records at Jacksonville still stand. 1906 holds the most, with 59.
Standing records at Jacksonville by the year they were set
Year set
Standing records
1893
25
1894
14
1895
30
1896
35
1897
30
1898
16
1899
39
1900
14
1901
25
1902
34
1903
35
1904
27
1905
37
1906
59
1907
38
1908
31
1909
24
1910
36
1911
25
1912
31
1913
33
1914
26
1915
19
1916
47
1917
39
1918
32
1919
38
1920
34
1921
16
1922
24
1923
24
1924
36
1925
21
1926
42
1927
17
1928
26
1929
26
1930
23
1931
23
1932
32
1933
20
1934
27
1935
21
1936
19
1937
48
1938
19
1939
16
1940
22
1941
14
1942
10
1943
12
1944
8
1945
18
1946
4
1947
9
1948
14
All-Time Record Progression
1 new records
1 all-time records were set at Jacksonville between 20 July 1946 and 20 July 1946. Each dot is a new record.
When Jacksonville set new all-time records
Date
Kind
Detail
1946-07-20
Record high maximum temperature
Record high maximum temperature 42.8 C (109.0 F)
Wettest Day of Each Month
Oct: 82.6 mm (3.3 in)
The wettest day on record for each calendar month at Jacksonville. The most was 82.6 mm (3.3 in) on 14 October 1908.
Record daily precipitation for each month at Jacksonville
Month
Record daily precipitation (mm)
Date
Jan
79.8 mm (3.1 in)
24 January 1903
Feb
76.2 mm (3.0 in)
20 February 1927
Mar
58.9 mm (2.3 in)
18 March 1907
Apr
38.1 mm (1.5 in)
30 April 1931
May
34.3 mm (1.4 in)
28 May 1906
Jun
41.9 mm (1.6 in)
10 June 1898
Jul
40.4 mm (1.6 in)
23 July 1913
Aug
40.1 mm (1.6 in)
8 August 1907
Sep
26.7 mm (1.1 in)
21 September 1901
Oct
82.6 mm (3.3 in)
14 October 1908
Nov
64.0 mm (2.5 in)
30 November 1893
Dec
75.7 mm (3.0 in)
2 December 1941
Period of Record Coverage
1893 to 1948
Complete yearUnder 90 percent of days
56 years of record at Jacksonville, 1893 to 1948. 2 years have data for under 90 percent of days and are left out of rankings: 1946, 1948.
Cooler than the station meanWarmer than the station mean
One stripe for each of 53 complete years at Jacksonville, 1893 to 1947. Blue stripes are years cooler than the station's own mean of 11.6 C (52.8 F); red stripes are warmer. The coolest year was 1893, at 9.8 C (49.7 F), and the warmest was 1934, at 13.2 C (55.8 F). The strongest colour marks a difference of 1.8 C (3.2 F).
Annual mean temperature at Jacksonville as warming stripes, 1893 to 1947
Year
Annual mean temperature
Difference from the station mean
1893
9.8 C
-1.76 C
1894
10.6 C
-0.93 C
1895
10.7 C
-0.83 C
1896
11.1 C
-0.48 C
1897
11.2 C
-0.36 C
1898
11.1 C
-0.49 C
1899
10.9 C
-0.68 C
1900
11.9 C
+0.37 C
1901
11.3 C
-0.26 C
1902
11.5 C
-0.10 C
1903
11.8 C
+0.18 C
1904
12.8 C
+1.26 C
1905
12.3 C
+0.76 C
1906
12.4 C
+0.80 C
1907
12.2 C
+0.61 C
1908
11.9 C
+0.31 C
1909
11.5 C
-0.04 C
1910
12.2 C
+0.60 C
1911
10.7 C
-0.88 C
1912
10.8 C
-0.81 C
1913
10.8 C
-0.74 C
1914
11.9 C
+0.31 C
1915
12.1 C
+0.49 C
1916
10.8 C
-0.74 C
1917
11.1 C
-0.49 C
1918
11.7 C
+0.14 C
1919
11.2 C
-0.41 C
1920
11.0 C
-0.59 C
1921
11.6 C
+0.07 C
1922
11.0 C
-0.58 C
1923
11.4 C
-0.14 C
1924
11.8 C
+0.25 C
1925
12.2 C
+0.64 C
1926
12.9 C
+1.33 C
1927
11.5 C
-0.03 C
1928
11.9 C
+0.30 C
1929
11.2 C
-0.36 C
1930
11.4 C
-0.17 C
1931
12.2 C
+0.60 C
1933
11.1 C
-0.45 C
1934
13.2 C
+1.65 C
1935
11.1 C
-0.44 C
1936
11.8 C
+0.20 C
1937
10.4 C
-1.22 C
1938
11.8 C
+0.22 C
1939
12.2 C
+0.58 C
1940
12.4 C
+0.87 C
1941
12.0 C
+0.44 C
1942
11.8 C
+0.27 C
1943
11.6 C
+0.06 C
1944
11.6 C
+0.03 C
1945
12.0 C
+0.43 C
1947
11.8 C
+0.20 C
The annual mean temperature here has risen by 0.13 C (0.02 to 0.24) per decade over 1893 to 1947. In Fahrenheit: 0.23 F (0.03 to 0.43) per decade. The slope is a straight line fitted to 53 complete years; the brackets give its 95 percent interval.
Fitted temperature trends per decade at Jacksonville
Measure
Per decade (C)
Per decade (F)
Period
Complete years
Reading
Annual mean temperature
0.13 C (0.02 to 0.24) per decade
0.23 F (0.03 to 0.43) per decade
1893 to 1947
53
Rise
Mean daily maximum
0.03 C (-0.12 to 0.19) per decade
0.1 F (-0.2 to 0.3) per decade
1893 to 1947
53
Not clearly different from zero
Mean daily minimum
0.2 C (0.1 to 0.3) per decade
0.4 F (0.2 to 0.6) per decade
1893 to 1947
53
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
1893 to 1948
Yearly extremes at Jacksonville: the record and the median year
Measure
Record
Year of the record
Median year
Years with a value
Hottest day (TXx)
42.8 C (109.0 F)
1946
38.9 C (102.0 F)
56
Coldest night (TNn)
-17.8 C (0.0 F)
1919
-8.9 C (16.0 F)
56
Wettest day (Rx1day)
82.6 mm (3.3 in)
1908
42.8 mm (1.7 in)
56
Wettest five days (Rx5day)
197.1 mm (7.8 in)
1901
84.0 mm (3.3 in)
56
Longest dry spell (CDD)
111 days
1929
56 days
56
Hottest day (TXx)
The hottest day of the year at Jacksonville, 1893 to 1948. The record is 42.8 C (109.0 F) in 1946, marked on the chart; the median year is 38.9 C (102.0 F).
Hottest day (TXx) at Jacksonville by year
Year
Hottest day (TXx)
1893
35.0 C (95.0 F)
1894
36.1 C (97.0 F)
1895
38.9 C (102.0 F)
1896
37.8 C (100.0 F)
1897
38.9 C (102.0 F)
1898
37.8 C (100.0 F)
1899
37.2 C (99.0 F)
1900
38.3 C (100.9 F)
1901
41.1 C (106.0 F)
1902
40.6 C (105.1 F)
1903
37.2 C (99.0 F)
1904
38.9 C (102.0 F)
1905
41.1 C (106.0 F)
1906
40.0 C (104.0 F)
1907
37.8 C (100.0 F)
1908
41.1 C (106.0 F)
1909
38.3 C (100.9 F)
1910
38.9 C (102.0 F)
1911
40.6 C (105.1 F)
1912
37.2 C (99.0 F)
1913
35.6 C (96.1 F)
1914
39.4 C (102.9 F)
1915
39.4 C (102.9 F)
1916
39.4 C (102.9 F)
1917
40.6 C (105.1 F)
1918
38.9 C (102.0 F)
1919
39.4 C (102.9 F)
1920
40.6 C (105.1 F)
1921
38.9 C (102.0 F)
1922
40.0 C (104.0 F)
1923
38.3 C (100.9 F)
1924
40.0 C (104.0 F)
1925
40.0 C (104.0 F)
1926
40.0 C (104.0 F)
1927
38.3 C (100.9 F)
1928
40.6 C (105.1 F)
1929
39.4 C (102.9 F)
1930
36.7 C (98.1 F)
1931
41.1 C (106.0 F)
1932
40.0 C (104.0 F)
1933
41.1 C (106.0 F)
1934
39.4 C (102.9 F)
1935
38.9 C (102.0 F)
1936
36.7 C (98.1 F)
1937
35.6 C (96.1 F)
1938
40.0 C (104.0 F)
1939
40.0 C (104.0 F)
1940
38.3 C (100.9 F)
1941
37.8 C (100.0 F)
1942
38.9 C (102.0 F)
1943
36.7 C (98.1 F)
1944
37.2 C (99.0 F)
1945
36.7 C (98.1 F)
1946
42.8 C (109.0 F)
1947
34.4 C (93.9 F)
1948
35.0 C (95.0 F)
Coldest night (TNn)
The coldest night of the year at Jacksonville, 1893 to 1948. The record is -17.8 C (0.0 F) in 1919, marked on the chart; the median year is -8.9 C (16.0 F).
Coldest night (TNn) at Jacksonville by year
Year
Coldest night (TNn)
1893
-10.6 C (12.9 F)
1894
-9.4 C (15.1 F)
1895
-7.2 C (19.0 F)
1896
-9.4 C (15.1 F)
1897
-6.1 C (21.0 F)
1898
-9.4 C (15.1 F)
1899
-15.0 C (5.0 F)
1900
-6.7 C (19.9 F)
1901
-8.3 C (17.1 F)
1902
-10.0 C (14.0 F)
1903
-9.4 C (15.1 F)
1904
-5.0 C (23.0 F)
1905
-8.3 C (17.1 F)
1906
-8.3 C (17.1 F)
1907
-8.9 C (16.0 F)
1908
-8.3 C (17.1 F)
1909
-8.9 C (16.0 F)
1910
-10.6 C (12.9 F)
1911
-8.3 C (17.1 F)
1912
-7.2 C (19.0 F)
1913
-12.8 C (9.0 F)
1914
-9.4 C (15.1 F)
1915
-11.7 C (10.9 F)
1916
-13.9 C (7.0 F)
1917
-12.2 C (10.0 F)
1918
-12.2 C (10.0 F)
1919
-17.8 C (0.0 F)
1920
-6.7 C (19.9 F)
1921
-8.3 C (17.1 F)
1922
-13.9 C (7.0 F)
1923
-10.6 C (12.9 F)
1924
-13.3 C (8.1 F)
1925
-5.0 C (23.0 F)
1926
-7.8 C (18.0 F)
1927
-8.9 C (16.0 F)
1928
-8.9 C (16.0 F)
1929
-12.2 C (10.0 F)
1930
-15.0 C (5.0 F)
1931
-8.3 C (17.1 F)
1932
-16.7 C (1.9 F)
1933
-10.0 C (14.0 F)
1934
-2.8 C (27.0 F)
1935
-8.9 C (16.0 F)
1936
-7.2 C (19.0 F)
1937
-17.2 C (1.0 F)
1938
-6.7 C (19.9 F)
1939
-5.6 C (21.9 F)
1940
-7.8 C (18.0 F)
1941
-4.4 C (24.1 F)
1942
-11.1 C (12.0 F)
1943
-12.8 C (9.0 F)
1944
-6.1 C (21.0 F)
1945
-8.3 C (17.1 F)
1946
-5.0 C (23.0 F)
1947
-9.4 C (15.1 F)
1948
-7.8 C (18.0 F)
Wettest day (Rx1day)
The wettest day of the year at Jacksonville, 1893 to 1948. The record is 82.6 mm (3.3 in) in 1908, marked on the chart; the median year is 42.8 mm (1.7 in).
Wettest day (Rx1day) at Jacksonville by year
Year
Wettest day (Rx1day)
1893
64.0 mm (2.5 in)
1894
47.8 mm (1.9 in)
1895
34.8 mm (1.4 in)
1896
38.1 mm (1.5 in)
1897
47.0 mm (1.9 in)
1898
41.9 mm (1.6 in)
1899
50.3 mm (2.0 in)
1900
34.3 mm (1.4 in)
1901
64.0 mm (2.5 in)
1902
65.3 mm (2.6 in)
1903
79.8 mm (3.1 in)
1904
58.4 mm (2.3 in)
1905
38.1 mm (1.5 in)
1906
58.7 mm (2.3 in)
1907
58.9 mm (2.3 in)
1908
82.6 mm (3.3 in)
1909
53.8 mm (2.1 in)
1910
63.5 mm (2.5 in)
1911
34.5 mm (1.4 in)
1912
38.6 mm (1.5 in)
1913
40.4 mm (1.6 in)
1914
29.7 mm (1.2 in)
1915
30.7 mm (1.2 in)
1916
30.2 mm (1.2 in)
1917
60.5 mm (2.4 in)
1918
37.1 mm (1.5 in)
1919
48.8 mm (1.9 in)
1920
44.2 mm (1.7 in)
1921
47.0 mm (1.9 in)
1922
40.6 mm (1.6 in)
1923
29.0 mm (1.1 in)
1924
69.1 mm (2.7 in)
1925
33.0 mm (1.3 in)
1926
46.2 mm (1.8 in)
1927
76.2 mm (3.0 in)
1928
37.1 mm (1.5 in)
1929
47.2 mm (1.9 in)
1930
25.9 mm (1.0 in)
1931
38.1 mm (1.5 in)
1932
26.9 mm (1.1 in)
1933
55.1 mm (2.2 in)
1934
31.0 mm (1.2 in)
1935
31.8 mm (1.3 in)
1936
41.9 mm (1.6 in)
1937
50.8 mm (2.0 in)
1938
49.5 mm (1.9 in)
1939
54.1 mm (2.1 in)
1940
43.2 mm (1.7 in)
1941
75.7 mm (3.0 in)
1942
29.5 mm (1.2 in)
1943
77.2 mm (3.0 in)
1944
23.1 mm (0.9 in)
1945
42.4 mm (1.7 in)
1946
32.0 mm (1.3 in)
1947
27.9 mm (1.1 in)
1948
33.0 mm (1.3 in)
Wettest five days (Rx5day)
The wettest five days of the year at Jacksonville, 1893 to 1948. The record is 197.1 mm (7.8 in) in 1901, marked on the chart; the median year is 84.0 mm (3.3 in).
Wettest five days (Rx5day) at Jacksonville by year
Year
Wettest five days (Rx5day)
1893
135.6 mm (5.3 in)
1894
97.3 mm (3.8 in)
1895
65.5 mm (2.6 in)
1896
90.5 mm (3.6 in)
1897
77.8 mm (3.1 in)
1898
69.8 mm (2.7 in)
1899
120.3 mm (4.7 in)
1900
63.1 mm (2.5 in)
1901
197.1 mm (7.8 in)
1902
104.4 mm (4.1 in)
1903
194.8 mm (7.7 in)
1904
85.3 mm (3.4 in)
1905
76.7 mm (3.0 in)
1906
132.7 mm (5.2 in)
1907
117.9 mm (4.6 in)
1908
111.1 mm (4.4 in)
1909
178.2 mm (7.0 in)
1910
109.8 mm (4.3 in)
1911
41.3 mm (1.6 in)
1912
58.7 mm (2.3 in)
1913
100.3 mm (3.9 in)
1914
83.0 mm (3.3 in)
1915
50.6 mm (2.0 in)
1916
49.3 mm (1.9 in)
1917
147.1 mm (5.8 in)
1918
61.2 mm (2.4 in)
1919
65.8 mm (2.6 in)
1920
86.7 mm (3.4 in)
1921
72.1 mm (2.8 in)
1922
85.0 mm (3.3 in)
1923
66.7 mm (2.6 in)
1924
136.8 mm (5.4 in)
1925
64.3 mm (2.5 in)
1926
101.9 mm (4.0 in)
1927
139.9 mm (5.5 in)
1928
66.9 mm (2.6 in)
1929
105.2 mm (4.1 in)
1930
53.8 mm (2.1 in)
1931
87.4 mm (3.4 in)
1932
54.9 mm (2.2 in)
1933
67.0 mm (2.6 in)
1934
66.1 mm (2.6 in)
1935
54.6 mm (2.1 in)
1936
102.8 mm (4.0 in)
1937
95.5 mm (3.8 in)
1938
80.8 mm (3.2 in)
1939
45.1 mm (1.8 in)
1940
66.8 mm (2.6 in)
1941
100.2 mm (3.9 in)
1942
108.0 mm (4.3 in)
1943
134.4 mm (5.3 in)
1944
47.5 mm (1.9 in)
1945
59.2 mm (2.3 in)
1946
80.2 mm (3.2 in)
1947
40.3 mm (1.6 in)
1948
93.9 mm (3.7 in)
Longest dry spell (CDD)
The longest dry spell of the year at Jacksonville, 1893 to 1948. The record is 111 days in 1929, marked on the chart; the median year is 56 days.
Longest dry spell (CDD) at Jacksonville by year
Year
Longest dry spell (CDD)
1893
31 days
1894
21 days
1895
31 days
1896
32 days
1897
59 days
1898
31 days
1899
17 days
1900
58 days
1901
61 days
1902
38 days
1903
22 days
1904
41 days
1905
59 days
1906
73 days
1907
25 days
1908
63 days
1909
55 days
1910
53 days
1911
68 days
1912
50 days
1913
51 days
1914
56 days
1915
76 days
1916
28 days
1917
76 days
1918
40 days
1919
87 days
1920
43 days
1921
93 days
1922
85 days
1923
41 days
1924
44 days
1925
40 days
1926
64 days
1927
89 days
1928
92 days
1929
111 days
1930
52 days
1931
70 days
1932
71 days
1933
82 days
1934
87 days
1935
66 days
1936
82 days
1937
39 days
1938
85 days
1939
43 days
1940
47 days
1941
46 days
1942
75 days
1943
56 days
1944
70 days
1945
107 days
1946
38 days
1947
40 days
1948
47 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
53 years with a frost
Across 53 years with a frost, the median last spring frost at Jacksonville falls on 2 May and the median first autumn frost on 20 October, which leaves a median of 173 days between them.
Fitted over all years, the growing season changes by +4.8 days per decade at this station.
Frost dates and growing season at Jacksonville
Measure
Median, all years
Earliest period
Recent period (1916 to 1947)
Recent against earliest
Fitted trend
Last spring frost
2 May
n/a
2 May
n/a
-2.0 days per decade
First autumn frost
20 October
n/a
23 October
n/a
+2.8 days per decade
Growing days
173 days
n/a
175 days
n/a
+4.8 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
43 years, 1900 to 1947
A day with at least 43.6 mm (1.7 in) of rain is expected about once in 2 years. A day with at least 101.3 mm (4.0 in) of rain is expected about once in 100 years.
Rainfall return levels at Jacksonville: the daily rain expected about once in a given number of years
Expected about once in
A day with at least
Note
2 years
43.6 mm (1.7 in)
5 years
58.4 mm (2.3 in)
10 years
68.5 mm (2.7 in)
25 years
81.5 mm (3.2 in)
50 years
91.4 mm (3.6 in)
Longer than the 43 years of record
100 years
101.3 mm (4.0 in)
Longer than the 43 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, 43 years of values from 1900 to 1947.
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: 82.6 mm (3.3 in) in 1908; 79.8 mm (3.1 in) in 1903; 77.2 mm (3.0 in) in 1943.
Station Changes
2 suspected
2 changes were suspected in the annual mean temperature of Jacksonville, at 1915 and 1931. Each is measured against neighbouring stations.
Relative to 5 neighbouring stations, the station's annual mean temperature from 1915 ran 0.3 C (0.5 F) lower than in the years before (possible change).
Relative to 5 neighbouring stations, the station's annual mean temperature from 1931 ran 0.2 C (0.4 F) lower than in the years before (likely change).
Suspected changes in the annual mean temperature at Jacksonville, against neighbouring stations
Year
Shift (C)
Shift (F)
Strength
Neighbours
1915
-0.3
-0.5
possible
5
1931
-0.2
-0.4
likely
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 Jacksonville standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Jacksonville 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.