Record envelope, standing records and threshold days for Peoria City Office (USW00014874), Illinois, United States, with 39 years of record.
Key Facts for Peoria City Office
Peoria City Office (USW00014874) is a weather station in Illinois, United States at 40.72 latitude and -89.60 longitude, n/a above sea level.
The station reports from 1905 to 1943, 39 years of record.
1,460 records set at Peoria City Office still stand.
Records are tracked for tmax, tmin, prcp, snow, snwd: an element needs 30 years of data to be eligible.
Peoria City Office set a daily record precipitation of 18.0 mm (0.7 in) on 27 April 1943.
About the Station
Location: Illinois, United States, 40.72 latitude, -89.60 longitude.
Elevation: n/a.
Period of record: 1905 to 1943, 39 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 Peoria City Office. 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 Peoria City Office, with 2026 drawn through them
Month
Highest record high
Lowest record low
2026 highest maximum
2026 lowest minimum
Jan
21.7 C (71.1 F)
-29.4 C (-20.9 F)
n/a
n/a
Feb
23.3 C (73.9 F)
-32.2 C (-26.0 F)
n/a
n/a
Mar
30.6 C (87.1 F)
-23.3 C (-9.9 F)
n/a
n/a
Apr
33.3 C (91.9 F)
-10.0 C (14.0 F)
n/a
n/a
May
40.0 C (104.0 F)
-2.2 C (28.0 F)
n/a
n/a
Jun
40.6 C (105.1 F)
4.4 C (39.9 F)
n/a
n/a
Jul
45.0 C (113.0 F)
7.8 C (46.0 F)
n/a
n/a
Aug
41.1 C (106.0 F)
5.0 C (41.0 F)
n/a
n/a
Sep
38.9 C (102.0 F)
-3.3 C (26.1 F)
n/a
n/a
Oct
33.3 C (91.9 F)
-13.9 C (7.0 F)
n/a
n/a
Nov
27.2 C (81.0 F)
-18.3 C (-0.9 F)
n/a
n/a
Dec
19.4 C (66.9 F)
-31.1 C (-24.0 F)
n/a
n/a
Which Years Hold Standing Records
1,460 standing records
Year with most
1,460 records at Peoria City Office still stand. 1936 holds the most, with 90.
Standing records at Peoria City Office by the year they were set
Year set
Standing records
1905
32
1906
38
1907
40
1908
37
1909
41
1910
36
1911
48
1912
38
1913
51
1914
40
1915
41
1916
38
1917
41
1918
50
1919
14
1920
40
1921
30
1922
29
1923
25
1924
39
1925
42
1926
25
1927
34
1928
43
1929
28
1930
61
1931
53
1932
38
1933
32
1934
51
1935
27
1936
90
1937
26
1938
31
1939
35
1940
32
1941
23
1942
29
1943
12
All-Time Record Progression
5 new records
5 all-time records were set at Peoria City Office between 11 July 1936 and 22 August 1936. Each dot is a new record.
When Peoria City Office set new all-time records
Date
Kind
Detail
1936-07-11
Record high maximum temperature
Record high maximum temperature 42.2 C (108.0 F)
1936-07-13
Record high maximum temperature
Record high maximum temperature 42.8 C (109.0 F)
1936-07-14
Record high maximum temperature
Record high maximum temperature 43.3 C (109.9 F)
1936-07-15
Record high maximum temperature
Record high maximum temperature 45.0 C (113.0 F)
1936-08-22
Record high minimum temperature
Record high minimum temperature 27.8 C (82.0 F)
Wettest Day of Each Month
May: 140.2 mm (5.5 in)
The wettest day on record for each calendar month at Peoria City Office. The most was 140.2 mm (5.5 in) on 18 May 1927.
Record daily precipitation for each month at Peoria City Office
Month
Record daily precipitation (mm)
Date
Jan
57.4 mm (2.3 in)
19 January 1907
Feb
71.9 mm (2.8 in)
6 February 1942
Mar
65.8 mm (2.6 in)
31 March 1933
Apr
66.0 mm (2.6 in)
20 April 1905
May
140.2 mm (5.5 in)
18 May 1927
Jun
120.4 mm (4.7 in)
24 June 1911
Jul
73.2 mm (2.9 in)
2 July 1931
Aug
60.5 mm (2.4 in)
19 August 1924
Sep
85.6 mm (3.4 in)
10 September 1911
Oct
63.8 mm (2.5 in)
7 October 1930
Nov
65.8 mm (2.6 in)
22 November 1931
Dec
38.9 mm (1.5 in)
1 December 1921
Period of Record Coverage
1905 to 1943
Complete yearUnder 90 percent of days
39 years of record at Peoria City Office, 1905 to 1943. 1 years have data for under 90 percent of days and are left out of rankings: 1943.
Cooler than the station meanWarmer than the station mean
One stripe for each of 37 complete years at Peoria City Office, 1906 to 1942. Blue stripes are years cooler than the station's own mean of 10.9 C (51.5 F); red stripes are warmer. The coolest year was 1917, at 8.7 C (47.6 F), and the warmest was 1931, at 13.1 C (55.5 F). The strongest colour marks a difference of 2.3 C (4.1 F).
Annual mean temperature at Peoria City Office as warming stripes, 1906 to 1942
Year
Annual mean temperature
Difference from the station mean
1906
10.6 C
-0.24 C
1907
10.0 C
-0.84 C
1908
10.9 C
+0.03 C
1909
10.2 C
-0.71 C
1910
10.3 C
-0.56 C
1911
11.1 C
+0.27 C
1912
9.5 C
-1.41 C
1913
11.5 C
+0.67 C
1914
11.0 C
+0.09 C
1915
10.5 C
-0.41 C
1916
10.4 C
-0.49 C
1917
8.7 C
-2.19 C
1918
10.5 C
-0.36 C
1919
10.8 C
-0.03 C
1920
10.4 C
-0.45 C
1921
12.8 C
+1.98 C
1922
11.6 C
+0.76 C
1923
10.9 C
+0.05 C
1924
9.4 C
-1.50 C
1925
10.6 C
-0.23 C
1926
9.9 C
-0.92 C
1927
10.9 C
+0.07 C
1928
10.8 C
-0.02 C
1929
9.8 C
-1.09 C
1930
11.5 C
+0.68 C
1931
13.1 C
+2.22 C
1932
11.0 C
+0.17 C
1933
12.1 C
+1.21 C
1934
11.7 C
+0.88 C
1935
10.4 C
-0.42 C
1936
11.0 C
+0.15 C
1937
10.3 C
-0.53 C
1938
12.3 C
+1.47 C
1939
11.9 C
+1.04 C
1940
10.5 C
-0.36 C
1941
12.1 C
+1.28 C
1942
10.6 C
-0.25 C
The annual mean temperature here has risen by 0.31 C (0.04 to 0.59) per decade over 1906 to 1942. In Fahrenheit: 0.6 F (0.1 to 1.1) per decade. The slope is a straight line fitted to 37 complete years; the brackets give its 95 percent interval.
Fitted temperature trends per decade at Peoria City Office
Measure
Per decade (C)
Per decade (F)
Period
Complete years
Reading
Annual mean temperature
0.31 C (0.04 to 0.59) per decade
0.6 F (0.1 to 1.1) per decade
1906 to 1942
37
Rise
Mean daily maximum
0.2 C (-0.1 to 0.5) per decade
0.4 F (-0.1 to 1.0) per decade
1906 to 1942
37
Not clearly different from zero
Mean daily minimum
0.4 C (0.1 to 0.7) per decade
0.7 F (0.2 to 1.2) per decade
1906 to 1942
37
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
1905 to 1943
Yearly extremes at Peoria City Office: the record and the median year
Measure
Record
Year of the record
Median year
Years with a value
Hottest day (TXx)
45.0 C (113.0 F)
1936
36.7 C (98.1 F)
39
Coldest night (TNn)
-32.2 C (-26.0 F)
1905
-22.8 C (-9.0 F)
39
Wettest day (Rx1day)
140.2 mm (5.5 in)
1927
59.4 mm (2.3 in)
39
Wettest five days (Rx5day)
197.9 mm (7.8 in)
1926
87.9 mm (3.5 in)
39
Longest dry spell (CDD)
43 days
1919
21 days
39
Hottest day (TXx)
The hottest day of the year at Peoria City Office, 1905 to 1943. The record is 45.0 C (113.0 F) in 1936, marked on the chart; the median year is 36.7 C (98.1 F).
Hottest day (TXx) at Peoria City Office by year
Year
Hottest day (TXx)
1905
35.0 C (95.0 F)
1906
35.0 C (95.0 F)
1907
34.4 C (93.9 F)
1908
35.0 C (95.0 F)
1909
36.1 C (97.0 F)
1910
37.2 C (99.0 F)
1911
37.8 C (100.0 F)
1912
36.1 C (97.0 F)
1913
39.4 C (102.9 F)
1914
38.9 C (102.0 F)
1915
32.8 C (91.0 F)
1916
39.4 C (102.9 F)
1917
36.7 C (98.1 F)
1918
40.0 C (104.0 F)
1919
36.7 C (98.1 F)
1920
36.7 C (98.1 F)
1921
38.3 C (100.9 F)
1922
37.8 C (100.0 F)
1923
36.7 C (98.1 F)
1924
35.0 C (95.0 F)
1925
37.8 C (100.0 F)
1926
35.6 C (96.1 F)
1927
35.0 C (95.0 F)
1928
35.6 C (96.1 F)
1929
35.0 C (95.0 F)
1930
41.7 C (107.1 F)
1931
39.4 C (102.9 F)
1932
36.7 C (98.1 F)
1933
38.3 C (100.9 F)
1934
40.6 C (105.1 F)
1935
36.1 C (97.0 F)
1936
45.0 C (113.0 F)
1937
37.2 C (99.0 F)
1938
36.1 C (97.0 F)
1939
38.9 C (102.0 F)
1940
40.0 C (104.0 F)
1941
38.9 C (102.0 F)
1942
35.6 C (96.1 F)
1943
26.7 C (80.1 F)
Coldest night (TNn)
The coldest night of the year at Peoria City Office, 1905 to 1943. The record is -32.2 C (-26.0 F) in 1905, marked on the chart; the median year is -22.8 C (-9.0 F).
Coldest night (TNn) at Peoria City Office by year
Year
Coldest night (TNn)
1905
-32.2 C (-26.0 F)
1906
-16.7 C (1.9 F)
1907
-22.8 C (-9.0 F)
1908
-19.4 C (-2.9 F)
1909
-24.4 C (-11.9 F)
1910
-22.8 C (-9.0 F)
1911
-20.6 C (-5.1 F)
1912
-27.2 C (-17.0 F)
1913
-21.1 C (-6.0 F)
1914
-28.3 C (-18.9 F)
1915
-27.8 C (-18.0 F)
1916
-27.2 C (-17.0 F)
1917
-26.7 C (-16.1 F)
1918
-29.4 C (-20.9 F)
1919
-25.6 C (-14.1 F)
1920
-22.8 C (-9.0 F)
1921
-14.4 C (6.1 F)
1922
-21.1 C (-6.0 F)
1923
-21.1 C (-6.0 F)
1924
-31.1 C (-24.0 F)
1925
-21.7 C (-7.1 F)
1926
-21.7 C (-7.1 F)
1927
-28.9 C (-20.0 F)
1928
-25.6 C (-14.1 F)
1929
-22.8 C (-9.0 F)
1930
-28.3 C (-18.9 F)
1931
-14.4 C (6.1 F)
1932
-25.0 C (-13.0 F)
1933
-28.3 C (-18.9 F)
1934
-22.8 C (-9.0 F)
1935
-22.8 C (-9.0 F)
1936
-28.9 C (-20.0 F)
1937
-22.2 C (-8.0 F)
1938
-18.3 C (-0.9 F)
1939
-18.3 C (-0.9 F)
1940
-25.0 C (-13.0 F)
1941
-18.9 C (-2.0 F)
1942
-23.9 C (-11.0 F)
1943
-25.0 C (-13.0 F)
Wettest day (Rx1day)
The wettest day of the year at Peoria City Office, 1905 to 1943. The record is 140.2 mm (5.5 in) in 1927, marked on the chart; the median year is 59.4 mm (2.3 in).
Wettest day (Rx1day) at Peoria City Office by year
Year
Wettest day (Rx1day)
1905
66.0 mm (2.6 in)
1906
49.0 mm (1.9 in)
1907
57.4 mm (2.3 in)
1908
66.8 mm (2.6 in)
1909
60.2 mm (2.4 in)
1910
46.5 mm (1.8 in)
1911
120.4 mm (4.7 in)
1912
58.4 mm (2.3 in)
1913
43.9 mm (1.7 in)
1914
41.4 mm (1.6 in)
1915
114.3 mm (4.5 in)
1916
53.8 mm (2.1 in)
1917
42.9 mm (1.7 in)
1918
49.5 mm (1.9 in)
1919
43.2 mm (1.7 in)
1920
42.4 mm (1.7 in)
1921
38.9 mm (1.5 in)
1922
45.7 mm (1.8 in)
1923
65.8 mm (2.6 in)
1924
69.3 mm (2.7 in)
1925
41.4 mm (1.6 in)
1926
83.1 mm (3.3 in)
1927
140.2 mm (5.5 in)
1928
51.1 mm (2.0 in)
1929
58.4 mm (2.3 in)
1930
63.8 mm (2.5 in)
1931
73.2 mm (2.9 in)
1932
62.7 mm (2.5 in)
1933
73.4 mm (2.9 in)
1934
45.5 mm (1.8 in)
1935
62.5 mm (2.5 in)
1936
50.5 mm (2.0 in)
1937
68.1 mm (2.7 in)
1938
79.8 mm (3.1 in)
1939
64.8 mm (2.6 in)
1940
74.9 mm (2.9 in)
1941
59.4 mm (2.3 in)
1942
71.9 mm (2.8 in)
1943
43.4 mm (1.7 in)
Wettest five days (Rx5day)
The wettest five days of the year at Peoria City Office, 1905 to 1943. The record is 197.9 mm (7.8 in) in 1926, marked on the chart; the median year is 87.9 mm (3.5 in).
Wettest five days (Rx5day) at Peoria City Office by year
Year
Wettest five days (Rx5day)
1905
96.3 mm (3.8 in)
1906
86.8 mm (3.4 in)
1907
97.4 mm (3.8 in)
1908
67.1 mm (2.6 in)
1909
103.6 mm (4.1 in)
1910
48.3 mm (1.9 in)
1911
145.0 mm (5.7 in)
1912
84.6 mm (3.3 in)
1913
69.8 mm (2.7 in)
1914
59.5 mm (2.3 in)
1915
181.6 mm (7.1 in)
1916
132.5 mm (5.2 in)
1917
75.7 mm (3.0 in)
1918
77.7 mm (3.1 in)
1919
80.9 mm (3.2 in)
1920
97.1 mm (3.8 in)
1921
76.7 mm (3.0 in)
1922
66.0 mm (2.6 in)
1923
78.8 mm (3.1 in)
1924
106.0 mm (4.2 in)
1925
70.9 mm (2.8 in)
1926
197.9 mm (7.8 in)
1927
147.8 mm (5.8 in)
1928
82.4 mm (3.2 in)
1929
73.7 mm (2.9 in)
1930
68.7 mm (2.7 in)
1931
100.1 mm (3.9 in)
1932
87.1 mm (3.4 in)
1933
93.7 mm (3.7 in)
1934
118.6 mm (4.7 in)
1935
95.8 mm (3.8 in)
1936
113.0 mm (4.4 in)
1937
75.2 mm (3.0 in)
1938
98.4 mm (3.9 in)
1939
87.9 mm (3.5 in)
1940
77.7 mm (3.1 in)
1941
158.8 mm (6.3 in)
1942
104.4 mm (4.1 in)
1943
95.9 mm (3.8 in)
Longest dry spell (CDD)
The longest dry spell of the year at Peoria City Office, 1905 to 1943. The record is 43 days in 1919, marked on the chart; the median year is 21 days.
Longest dry spell (CDD) at Peoria City Office by year
Year
Longest dry spell (CDD)
1905
18 days
1906
21 days
1907
24 days
1908
28 days
1909
29 days
1910
20 days
1911
14 days
1912
18 days
1913
24 days
1914
21 days
1915
24 days
1916
29 days
1917
30 days
1918
15 days
1919
43 days
1920
20 days
1921
14 days
1922
22 days
1923
15 days
1924
22 days
1925
21 days
1926
11 days
1927
19 days
1928
17 days
1929
16 days
1930
21 days
1931
18 days
1932
17 days
1933
27 days
1934
22 days
1935
17 days
1936
32 days
1937
19 days
1938
24 days
1939
24 days
1940
24 days
1941
29 days
1942
28 days
1943
20 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
37 years with a frost
Across 37 years with a frost, the median last spring frost at Peoria City Office falls on 24 April and the median first autumn frost on 14 October, which leaves a median of 176 days between them.
Fitted over all years, the growing season changes by +5.6 days per decade at this station.
Frost dates and growing season at Peoria City Office
Measure
Median, all years
Earliest period
Recent period (1913 to 1942)
Recent against earliest
Fitted trend
Last spring frost
24 April
n/a
21 April
n/a
-4.4 days per decade
First autumn frost
14 October
n/a
17 October
n/a
+1.2 days per decade
Growing days
176 days
n/a
178 days
n/a
+5.6 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
38 years, 1905 to 1942
A day with at least 57.6 mm (2.3 in) of rain is expected about once in 2 years. A day with at least 148.2 mm (5.8 in) of rain is expected about once in 100 years.
Rainfall return levels at Peoria City Office: the daily rain expected about once in a given number of years
Expected about once in
A day with at least
Note
2 years
57.6 mm (2.3 in)
5 years
75.2 mm (3.0 in)
10 years
89.1 mm (3.5 in)
25 years
109.9 mm (4.3 in)
50 years
127.8 mm (5.0 in)
Longer than the 38 years of record
100 years
148.2 mm (5.8 in)
Longer than the 38 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, 38 years of values from 1905 to 1942.
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: 140.2 mm (5.5 in) in 1927; 120.4 mm (4.7 in) in 1911; 114.3 mm (4.5 in) in 1915.
Download the Data
Data for Peoria City Office standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Peoria City Office 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.