Record envelope, standing records and threshold days for Eau Claire (USC00472423), Wisconsin, United States, with 68 years of record.
Key Facts for Eau Claire
Eau Claire (USC00472423) is a weather station in Wisconsin, United States at 44.82 latitude and -91.50 longitude, 235 m (771 ft) above sea level.
The station reports from 1893 to 1960, 68 years of record.
1,464 records set at Eau Claire still stand.
Records are tracked for tmax, tmin, prcp, snow, snwd: an element needs 30 years of data to be eligible.
Eau Claire tied a daily record high maximum temperature of 6.7 C (44.1 F) on 14 December 1960.
About the Station
Location: Wisconsin, United States, 44.82 latitude, -91.50 longitude.
Elevation: 235 m (771 ft).
Period of record: 1893 to 1960, 68 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 Eau Claire. 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 Eau Claire, with 2026 drawn through them
Month
Highest record high
Lowest record low
2026 highest maximum
2026 lowest minimum
Jan
12.8 C (55.0 F)
-37.8 C (-36.0 F)
n/a
n/a
Feb
16.1 C (61.0 F)
-40.0 C (-40.0 F)
n/a
n/a
Mar
27.8 C (82.0 F)
-29.4 C (-20.9 F)
n/a
n/a
Apr
33.3 C (91.9 F)
-17.8 C (0.0 F)
n/a
n/a
May
41.7 C (107.1 F)
-6.7 C (19.9 F)
n/a
n/a
Jun
40.6 C (105.1 F)
-3.9 C (25.0 F)
n/a
n/a
Jul
43.9 C (111.0 F)
5.0 C (41.0 F)
n/a
n/a
Aug
40.0 C (104.0 F)
2.2 C (36.0 F)
n/a
n/a
Sep
38.3 C (100.9 F)
-5.6 C (21.9 F)
n/a
n/a
Oct
31.7 C (89.1 F)
-13.9 C (7.0 F)
n/a
n/a
Nov
26.1 C (79.0 F)
-24.4 C (-11.9 F)
n/a
n/a
Dec
14.4 C (57.9 F)
-33.3 C (-27.9 F)
n/a
n/a
Which Years Hold Standing Records
1,464 standing records
Year with most
1,464 records at Eau Claire still stand. 1931 holds the most, with 52.
Standing records at Eau Claire by the year they were set
Year set
Standing records
1893
22
1894
25
1895
41
1896
46
1897
43
1898
19
1899
41
1900
27
1901
20
1902
18
1903
22
1904
21
1905
9
1906
14
1907
15
1908
14
1909
29
1910
25
1911
23
1912
24
1913
27
1914
20
1915
19
1916
29
1917
38
1918
20
1919
17
1920
21
1921
19
1922
12
1923
23
1924
20
1925
23
1926
15
1927
19
1928
23
1929
17
1930
27
1931
52
1932
17
1933
29
1934
30
1935
15
1936
44
1937
18
1938
11
1939
16
1940
22
1941
18
1942
20
1943
15
1944
22
1945
21
1946
12
1947
32
1948
23
1949
14
1950
23
1951
26
1952
18
1953
16
1954
9
1955
11
1956
13
1957
5
1958
8
1959
15
1960
2
All-Time Record Progression
6 new records
6 all-time records were set at Eau Claire between 27 July 1931 and 13 July 1936. Each dot is a new record.
When Eau Claire set new all-time records
Date
Kind
Detail
1931-07-27
Record high minimum temperature
Record high minimum temperature 26.7 C (80.1 F)
1932-07-20
Record high minimum temperature
Record high minimum temperature 27.2 C (81.0 F)
1934-05-31
Record high maximum temperature
Record high maximum temperature 41.7 C (107.1 F)
1936-07-11
Record high maximum temperature
Record high maximum temperature 42.8 C (109.0 F)
1936-07-12
Record high maximum temperature
Record high maximum temperature 43.3 C (109.9 F)
1936-07-13
Record high maximum temperature
Record high maximum temperature 43.9 C (111.0 F)
Wettest Day of Each Month
May: 117.3 mm (4.6 in)
The wettest day on record for each calendar month at Eau Claire. The most was 117.3 mm (4.6 in) on 27 May 1899.
Record daily precipitation for each month at Eau Claire
Month
Record daily precipitation (mm)
Date
Jan
30.5 mm (1.2 in)
3 January 1906
Feb
45.7 mm (1.8 in)
27 February 1893
Mar
50.8 mm (2.0 in)
22 March 1897
Apr
55.9 mm (2.2 in)
14 April 1938
May
117.3 mm (4.6 in)
27 May 1899
Jun
100.6 mm (4.0 in)
19 June 1931
Jul
103.9 mm (4.1 in)
8 July 1959
Aug
90.2 mm (3.6 in)
19 August 1907
Sep
101.6 mm (4.0 in)
11 September 1939
Oct
83.1 mm (3.3 in)
6 October 1911
Nov
52.3 mm (2.1 in)
13 November 1909
Dec
38.1 mm (1.5 in)
27 December 1904
Period of Record Coverage
1893 to 1960
Complete yearUnder 90 percent of days
68 years of record at Eau Claire, 1893 to 1960. 2 years have data for under 90 percent of days and are left out of rankings: 1894, 1897.
Cooler than the station meanWarmer than the station mean
One stripe for each of 65 complete years at Eau Claire, 1893 to 1960. Blue stripes are years cooler than the station's own mean of 7.2 C (44.9 F); red stripes are warmer. The coolest year was 1917, at 4.6 C (40.2 F), and the warmest was 1931, at 10.7 C (51.2 F). The strongest colour marks a difference of 3.6 C (6.5 F).
Annual mean temperature at Eau Claire as warming stripes, 1893 to 1960
Year
Annual mean temperature
Difference from the station mean
1893
5.0 C
-2.20 C
1895
6.2 C
-1.01 C
1896
6.2 C
-1.00 C
1898
7.2 C
+0.03 C
1899
6.2 C
-0.95 C
1900
7.6 C
+0.46 C
1901
7.0 C
-0.13 C
1902
7.3 C
+0.10 C
1903
6.2 C
-0.93 C
1904
5.7 C
-1.46 C
1905
6.6 C
-0.56 C
1906
7.6 C
+0.44 C
1907
6.2 C
-1.00 C
1908
7.9 C
+0.78 C
1909
6.8 C
-0.33 C
1910
7.6 C
+0.41 C
1911
7.6 C
+0.44 C
1912
5.9 C
-1.22 C
1913
7.4 C
+0.28 C
1914
7.1 C
-0.02 C
1915
7.1 C
-0.09 C
1916
6.2 C
-0.95 C
1917
4.6 C
-2.61 C
1918
7.4 C
+0.23 C
1919
7.0 C
-0.13 C
1920
7.1 C
-0.11 C
1921
9.0 C
+1.82 C
1922
7.7 C
+0.51 C
1923
7.3 C
+0.15 C
1924
5.7 C
-1.45 C
1925
7.1 C
-0.07 C
1926
6.4 C
-0.80 C
1927
6.8 C
-0.39 C
1928
7.5 C
+0.37 C
1929
6.2 C
-0.99 C
1931
10.7 C
+3.53 C
1932
7.7 C
+0.53 C
1933
8.5 C
+1.29 C
1934
9.0 C
+1.82 C
1935
7.5 C
+0.37 C
1936
6.5 C
-0.71 C
1937
6.7 C
-0.45 C
1938
8.1 C
+0.90 C
1939
8.2 C
+1.06 C
1940
6.5 C
-0.65 C
1941
8.3 C
+1.14 C
1942
7.2 C
+0.04 C
1943
6.5 C
-0.63 C
1944
8.4 C
+1.22 C
1945
6.4 C
-0.75 C
1946
8.1 C
+0.89 C
1947
7.5 C
+0.29 C
1948
7.9 C
+0.75 C
1949
8.3 C
+1.17 C
1950
5.8 C
-1.36 C
1951
5.8 C
-1.32 C
1952
7.6 C
+0.43 C
1953
8.2 C
+1.04 C
1954
7.8 C
+0.65 C
1955
7.7 C
+0.53 C
1956
7.2 C
+0.01 C
1957
7.2 C
+0.00 C
1958
7.4 C
+0.24 C
1959
7.1 C
-0.03 C
1960
7.4 C
+0.24 C
The annual mean temperature here has risen by 0.16 C (0.04 to 0.28) per decade over 1893 to 1960. In Fahrenheit: 0.3 F (0.1 to 0.5) per decade. The slope is a straight line fitted to 65 complete years; the brackets give its 95 percent interval.
Fitted temperature trends per decade at Eau Claire
Measure
Per decade (C)
Per decade (F)
Period
Complete years
Reading
Annual mean temperature
0.16 C (0.04 to 0.28) per decade
0.3 F (0.1 to 0.5) per decade
1893 to 1960
65
Rise
Mean daily maximum
0.10 C (-0.03 to 0.23) per decade
0.2 F (-0.1 to 0.4) per decade
1893 to 1960
65
Not clearly different from zero
Mean daily minimum
0.2 C (0.1 to 0.4) per decade
0.4 F (0.2 to 0.6) per decade
1893 to 1960
65
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 1960
Yearly extremes at Eau Claire: the record and the median year
Measure
Record
Year of the record
Median year
Years with a value
Hottest day (TXx)
43.9 C (111.0 F)
1936
36.1 C (97.0 F)
68
Coldest night (TNn)
-40.0 C (-40.0 F)
1899
-32.2 C (-26.0 F)
68
Wettest day (Rx1day)
117.3 mm (4.6 in)
1899
56.7 mm (2.2 in)
68
Wettest five days (Rx5day)
178.8 mm (7.0 in)
1903
91.7 mm (3.6 in)
68
Longest dry spell (CDD)
49 days
1943
23 days
68
Hottest day (TXx)
The hottest day of the year at Eau Claire, 1893 to 1960. The record is 43.9 C (111.0 F) in 1936, marked on the chart; the median year is 36.1 C (97.0 F).
Hottest day (TXx) at Eau Claire by year
Year
Hottest day (TXx)
1893
36.1 C (97.0 F)
1894
30.6 C (87.1 F)
1895
37.2 C (99.0 F)
1896
36.7 C (98.1 F)
1897
36.1 C (97.0 F)
1898
36.1 C (97.0 F)
1899
33.9 C (93.0 F)
1900
36.1 C (97.0 F)
1901
39.4 C (102.9 F)
1902
31.7 C (89.1 F)
1903
31.1 C (88.0 F)
1904
33.9 C (93.0 F)
1905
36.7 C (98.1 F)
1906
35.6 C (96.1 F)
1907
34.4 C (93.9 F)
1908
35.0 C (95.0 F)
1909
34.4 C (93.9 F)
1910
36.7 C (98.1 F)
1911
36.7 C (98.1 F)
1912
34.4 C (93.9 F)
1913
35.6 C (96.1 F)
1914
34.4 C (93.9 F)
1915
30.6 C (87.1 F)
1916
36.7 C (98.1 F)
1917
36.7 C (98.1 F)
1918
35.6 C (96.1 F)
1919
33.9 C (93.0 F)
1920
35.6 C (96.1 F)
1921
37.2 C (99.0 F)
1922
37.8 C (100.0 F)
1923
35.0 C (95.0 F)
1924
32.2 C (90.0 F)
1925
35.6 C (96.1 F)
1926
35.0 C (95.0 F)
1927
33.9 C (93.0 F)
1928
33.3 C (91.9 F)
1929
36.7 C (98.1 F)
1930
37.2 C (99.0 F)
1931
38.9 C (102.0 F)
1932
38.9 C (102.0 F)
1933
37.8 C (100.0 F)
1934
41.7 C (107.1 F)
1935
36.1 C (97.0 F)
1936
43.9 C (111.0 F)
1937
38.3 C (100.9 F)
1938
35.6 C (96.1 F)
1939
37.2 C (99.0 F)
1940
38.3 C (100.9 F)
1941
38.3 C (100.9 F)
1942
36.1 C (97.0 F)
1943
35.6 C (96.1 F)
1944
38.3 C (100.9 F)
1945
37.2 C (99.0 F)
1946
34.4 C (93.9 F)
1947
40.0 C (104.0 F)
1948
39.4 C (102.9 F)
1949
37.8 C (100.0 F)
1950
35.0 C (95.0 F)
1951
32.8 C (91.0 F)
1952
35.0 C (95.0 F)
1953
36.7 C (98.1 F)
1954
35.6 C (96.1 F)
1955
37.8 C (100.0 F)
1956
36.1 C (97.0 F)
1957
34.4 C (93.9 F)
1958
35.0 C (95.0 F)
1959
33.9 C (93.0 F)
1960
35.0 C (95.0 F)
Coldest night (TNn)
The coldest night of the year at Eau Claire, 1893 to 1960. The record is -40.0 C (-40.0 F) in 1899, marked on the chart; the median year is -32.2 C (-26.0 F).
Coldest night (TNn) at Eau Claire by year
Year
Coldest night (TNn)
1893
-33.9 C (-29.0 F)
1894
-34.4 C (-29.9 F)
1895
-36.7 C (-34.1 F)
1896
-31.1 C (-24.0 F)
1897
-34.4 C (-29.9 F)
1898
-30.6 C (-23.1 F)
1899
-40.0 C (-40.0 F)
1900
-30.6 C (-23.1 F)
1901
-33.3 C (-27.9 F)
1902
-36.1 C (-33.0 F)
1903
-31.1 C (-24.0 F)
1904
-36.1 C (-33.0 F)
1905
-33.9 C (-29.0 F)
1906
-29.4 C (-20.9 F)
1907
-36.1 C (-33.0 F)
1908
-30.0 C (-22.0 F)
1909
-35.6 C (-32.1 F)
1910
-30.0 C (-22.0 F)
1911
-33.3 C (-27.9 F)
1912
-37.8 C (-36.0 F)
1913
-31.7 C (-25.1 F)
1914
-32.8 C (-27.0 F)
1915
-37.8 C (-36.0 F)
1916
-33.3 C (-27.9 F)
1917
-33.3 C (-27.9 F)
1918
-35.6 C (-32.1 F)
1919
-34.4 C (-29.9 F)
1920
-28.3 C (-18.9 F)
1921
-26.1 C (-15.0 F)
1922
-36.1 C (-33.0 F)
1923
-33.3 C (-27.9 F)
1924
-35.0 C (-31.0 F)
1925
-33.3 C (-27.9 F)
1926
-30.0 C (-22.0 F)
1927
-32.2 C (-26.0 F)
1928
-29.4 C (-20.9 F)
1929
-34.4 C (-29.9 F)
1930
-32.8 C (-27.0 F)
1931
-21.1 C (-6.0 F)
1932
-32.2 C (-26.0 F)
1933
-33.9 C (-29.0 F)
1934
-27.8 C (-18.0 F)
1935
-36.7 C (-34.1 F)
1936
-36.1 C (-33.0 F)
1937
-32.2 C (-26.0 F)
1938
-29.4 C (-20.9 F)
1939
-27.8 C (-18.0 F)
1940
-29.4 C (-20.9 F)
1941
-28.9 C (-20.0 F)
1942
-30.6 C (-23.1 F)
1943
-32.8 C (-27.0 F)
1944
-23.9 C (-11.0 F)
1945
-28.3 C (-18.9 F)
1946
-30.0 C (-22.0 F)
1947
-27.8 C (-18.0 F)
1948
-30.0 C (-22.0 F)
1949
-27.2 C (-17.0 F)
1950
-32.2 C (-26.0 F)
1951
-37.2 C (-35.0 F)
1952
-29.4 C (-20.9 F)
1953
-25.0 C (-13.0 F)
1954
-32.2 C (-26.0 F)
1955
-29.4 C (-20.9 F)
1956
-26.7 C (-16.1 F)
1957
-30.6 C (-23.1 F)
1958
-26.7 C (-16.1 F)
1959
-28.9 C (-20.0 F)
1960
-26.7 C (-16.1 F)
Wettest day (Rx1day)
The wettest day of the year at Eau Claire, 1893 to 1960. The record is 117.3 mm (4.6 in) in 1899, marked on the chart; the median year is 56.7 mm (2.2 in).
Wettest day (Rx1day) at Eau Claire by year
Year
Wettest day (Rx1day)
1893
50.8 mm (2.0 in)
1894
35.6 mm (1.4 in)
1895
50.8 mm (2.0 in)
1896
71.1 mm (2.8 in)
1897
50.8 mm (2.0 in)
1898
45.5 mm (1.8 in)
1899
117.3 mm (4.6 in)
1900
73.4 mm (2.9 in)
1901
70.4 mm (2.8 in)
1902
48.0 mm (1.9 in)
1903
95.0 mm (3.7 in)
1904
80.3 mm (3.2 in)
1905
50.8 mm (2.0 in)
1906
43.2 mm (1.7 in)
1907
90.2 mm (3.6 in)
1908
38.6 mm (1.5 in)
1909
75.9 mm (3.0 in)
1910
48.8 mm (1.9 in)
1911
83.1 mm (3.3 in)
1912
65.5 mm (2.6 in)
1913
36.3 mm (1.4 in)
1914
38.6 mm (1.5 in)
1915
71.1 mm (2.8 in)
1916
56.1 mm (2.2 in)
1917
61.5 mm (2.4 in)
1918
42.4 mm (1.7 in)
1919
45.7 mm (1.8 in)
1920
37.6 mm (1.5 in)
1921
71.1 mm (2.8 in)
1922
67.8 mm (2.7 in)
1923
54.6 mm (2.1 in)
1924
43.2 mm (1.7 in)
1925
76.2 mm (3.0 in)
1926
61.5 mm (2.4 in)
1927
63.5 mm (2.5 in)
1928
55.4 mm (2.2 in)
1929
57.2 mm (2.3 in)
1930
76.2 mm (3.0 in)
1931
100.6 mm (4.0 in)
1932
40.9 mm (1.6 in)
1933
47.8 mm (1.9 in)
1934
72.4 mm (2.9 in)
1935
61.2 mm (2.4 in)
1936
57.2 mm (2.3 in)
1937
37.3 mm (1.5 in)
1938
78.7 mm (3.1 in)
1939
101.6 mm (4.0 in)
1940
55.4 mm (2.2 in)
1941
61.0 mm (2.4 in)
1942
65.3 mm (2.6 in)
1943
46.7 mm (1.8 in)
1944
43.9 mm (1.7 in)
1945
47.2 mm (1.9 in)
1946
82.8 mm (3.3 in)
1947
80.5 mm (3.2 in)
1948
35.1 mm (1.4 in)
1949
70.9 mm (2.8 in)
1950
45.2 mm (1.8 in)
1951
37.8 mm (1.5 in)
1952
33.0 mm (1.3 in)
1953
53.3 mm (2.1 in)
1954
50.8 mm (2.0 in)
1955
75.4 mm (3.0 in)
1956
65.8 mm (2.6 in)
1957
50.8 mm (2.0 in)
1958
91.2 mm (3.6 in)
1959
103.9 mm (4.1 in)
1960
41.4 mm (1.6 in)
Wettest five days (Rx5day)
The wettest five days of the year at Eau Claire, 1893 to 1960. The record is 178.8 mm (7.0 in) in 1903, marked on the chart; the median year is 91.7 mm (3.6 in).
Wettest five days (Rx5day) at Eau Claire by year
Year
Wettest five days (Rx5day)
1893
91.5 mm (3.6 in)
1894
94.5 mm (3.7 in)
1895
79.2 mm (3.1 in)
1896
92.7 mm (3.6 in)
1897
66.0 mm (2.6 in)
1898
65.6 mm (2.6 in)
1899
140.4 mm (5.5 in)
1900
158.4 mm (6.2 in)
1901
91.7 mm (3.6 in)
1902
92.7 mm (3.6 in)
1903
178.8 mm (7.0 in)
1904
101.7 mm (4.0 in)
1905
90.2 mm (3.6 in)
1906
76.9 mm (3.0 in)
1907
111.0 mm (4.4 in)
1908
75.4 mm (3.0 in)
1909
132.8 mm (5.2 in)
1910
64.5 mm (2.5 in)
1911
146.3 mm (5.8 in)
1912
103.1 mm (4.1 in)
1913
61.7 mm (2.4 in)
1914
108.9 mm (4.3 in)
1915
97.8 mm (3.9 in)
1916
98.8 mm (3.9 in)
1917
110.5 mm (4.4 in)
1918
87.2 mm (3.4 in)
1919
79.7 mm (3.1 in)
1920
69.4 mm (2.7 in)
1921
132.8 mm (5.2 in)
1922
81.3 mm (3.2 in)
1923
101.4 mm (4.0 in)
1924
75.7 mm (3.0 in)
1925
107.4 mm (4.2 in)
1926
88.1 mm (3.5 in)
1927
97.8 mm (3.9 in)
1928
104.5 mm (4.1 in)
1929
73.2 mm (2.9 in)
1930
87.7 mm (3.5 in)
1931
110.0 mm (4.3 in)
1932
84.9 mm (3.3 in)
1933
47.8 mm (1.9 in)
1934
116.8 mm (4.6 in)
1935
96.1 mm (3.8 in)
1936
88.9 mm (3.5 in)
1937
40.6 mm (1.6 in)
1938
161.5 mm (6.4 in)
1939
106.4 mm (4.2 in)
1940
110.8 mm (4.4 in)
1941
96.5 mm (3.8 in)
1942
144.6 mm (5.7 in)
1943
77.0 mm (3.0 in)
1944
60.1 mm (2.4 in)
1945
97.3 mm (3.8 in)
1946
128.1 mm (5.0 in)
1947
80.5 mm (3.2 in)
1948
54.9 mm (2.2 in)
1949
84.9 mm (3.3 in)
1950
73.7 mm (2.9 in)
1951
86.0 mm (3.4 in)
1952
52.1 mm (2.1 in)
1953
71.2 mm (2.8 in)
1954
88.4 mm (3.5 in)
1955
96.0 mm (3.8 in)
1956
91.7 mm (3.6 in)
1957
58.9 mm (2.3 in)
1958
119.4 mm (4.7 in)
1959
129.1 mm (5.1 in)
1960
60.4 mm (2.4 in)
Longest dry spell (CDD)
The longest dry spell of the year at Eau Claire, 1893 to 1960. The record is 49 days in 1943, marked on the chart; the median year is 23 days.
Longest dry spell (CDD) at Eau Claire by year
Year
Longest dry spell (CDD)
1893
28 days
1894
22 days
1895
30 days
1896
41 days
1897
22 days
1898
22 days
1899
24 days
1900
24 days
1901
23 days
1902
19 days
1903
23 days
1904
21 days
1905
26 days
1906
14 days
1907
19 days
1908
25 days
1909
23 days
1910
42 days
1911
19 days
1912
25 days
1913
32 days
1914
18 days
1915
18 days
1916
17 days
1917
25 days
1918
22 days
1919
14 days
1920
25 days
1921
13 days
1922
17 days
1923
26 days
1924
17 days
1925
23 days
1926
10 days
1927
19 days
1928
17 days
1929
21 days
1930
29 days
1931
20 days
1932
18 days
1933
25 days
1934
34 days
1935
23 days
1936
25 days
1937
24 days
1938
23 days
1939
20 days
1940
23 days
1941
33 days
1942
38 days
1943
49 days
1944
27 days
1945
18 days
1946
17 days
1947
25 days
1948
24 days
1949
23 days
1950
15 days
1951
17 days
1952
34 days
1953
27 days
1954
25 days
1955
21 days
1956
31 days
1957
22 days
1958
31 days
1959
32 days
1960
26 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
65 years with a frost
Across 65 years with a frost, the median last spring frost at Eau Claire falls on 8 May and the median first autumn frost on 30 September, which leaves a median of 151 days between them.
In 1931 to 1960 the median growing season was 155 days. That is 10 days more than in 1893 to 1924.
Fitted over all years, the growing season changes by +1.8 days per decade at this station.
Frost dates and growing season at Eau Claire
Measure
Median, all years
Earliest period (1893 to 1924)
Recent period (1931 to 1960)
Recent against earliest
Fitted trend
Last spring frost
8 May
10 May
5 May
5 days earlier
-0.7 days per decade
First autumn frost
30 September
30 September
4 October
4 days later
+1.1 days per decade
Growing days
151 days
145 days
155 days
10 days more
+1.8 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
66 years, 1893 to 1960
A day with at least 58.3 mm (2.3 in) of rain is expected about once in 2 years. A day with at least 122.6 mm (4.8 in) of rain is expected about once in 100 years.
Rainfall return levels at Eau Claire: the daily rain expected about once in a given number of years
Expected about once in
A day with at least
Note
2 years
58.3 mm (2.3 in)
5 years
76.0 mm (3.0 in)
10 years
87.5 mm (3.4 in)
25 years
101.8 mm (4.0 in)
50 years
112.3 mm (4.4 in)
100 years
122.6 mm (4.8 in)
Longer than the 66 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, 66 years of values from 1893 to 1960.
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: 117.3 mm (4.6 in) in 1899; 103.9 mm (4.1 in) in 1959; 101.6 mm (4.0 in) in 1939.
Station Changes
No change in the annual mean temperature of this station was found against its neighbours.
Download the Data
Data for Eau Claire standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Eau Claire 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.