Record envelope, standing records and threshold days for Tingley (USC00138255), Iowa, United States, with 33 years of record.
Key Facts for Tingley
Tingley (USC00138255) is a weather station in Iowa, United States at 40.85 latitude and -94.20 longitude, 390 m (1,280 ft) above sea level.
The station reports from 1924 to 1956, 33 years of record.
1,464 records set at Tingley still stand.
Records are tracked for tmax, tmin, prcp, snow: an element needs 30 years of data to be eligible.
Tingley tied a daily record high maximum temperature of 38.9 C (102.0 F) on 19 June 1956.
About the Station
Location: Iowa, United States, 40.85 latitude, -94.20 longitude.
Elevation: 390 m (1,280 ft).
Period of record: 1924 to 1956, 33 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 Tingley. 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 Tingley, with 2026 drawn through them
Month
Highest record high
Lowest record low
2026 highest maximum
2026 lowest minimum
Jan
17.8 C (64.0 F)
-31.1 C (-24.0 F)
n/a
n/a
Feb
25.6 C (78.1 F)
-29.4 C (-20.9 F)
n/a
n/a
Mar
29.4 C (84.9 F)
-27.2 C (-17.0 F)
n/a
n/a
Apr
33.3 C (91.9 F)
-12.8 C (9.0 F)
n/a
n/a
May
39.4 C (102.9 F)
-2.8 C (27.0 F)
n/a
n/a
Jun
40.0 C (104.0 F)
2.2 C (36.0 F)
n/a
n/a
Jul
44.4 C (111.9 F)
7.8 C (46.0 F)
n/a
n/a
Aug
43.9 C (111.0 F)
2.2 C (36.0 F)
n/a
n/a
Sep
37.8 C (100.0 F)
-2.8 C (27.0 F)
n/a
n/a
Oct
33.9 C (93.0 F)
-17.8 C (0.0 F)
n/a
n/a
Nov
27.2 C (81.0 F)
-20.6 C (-5.1 F)
n/a
n/a
Dec
20.6 C (69.1 F)
-30.6 C (-23.1 F)
n/a
n/a
Which Years Hold Standing Records
1,464 standing records
Year with most
1,464 records at Tingley still stand. 1936 holds the most, with 117.
Standing records at Tingley by the year they were set
Year set
Standing records
1924
43
1925
55
1926
38
1927
51
1928
45
1929
44
1930
63
1931
52
1932
43
1933
49
1934
80
1935
38
1936
117
1937
42
1938
36
1939
52
1940
35
1941
38
1942
37
1943
32
1944
32
1945
34
1946
47
1947
46
1948
30
1949
26
1950
46
1951
59
1952
37
1953
27
1954
31
1955
34
1956
25
Wettest Day of Each Month
Nov: 135.6 mm (5.3 in)
The wettest day on record for each calendar month at Tingley. The most was 135.6 mm (5.3 in) on 17 November 1952.
Record daily precipitation for each month at Tingley
Month
Record daily precipitation (mm)
Date
Jan
42.7 mm (1.7 in)
2 January 1936
Feb
27.7 mm (1.1 in)
6 February 1928
Mar
48.0 mm (1.9 in)
31 March 1927
Apr
59.9 mm (2.4 in)
29 April 1927
May
114.3 mm (4.5 in)
9 May 1950
Jun
105.9 mm (4.2 in)
13 June 1949
Jul
71.1 mm (2.8 in)
17 July 1950
Aug
82.3 mm (3.2 in)
26 August 1944
Sep
88.4 mm (3.5 in)
9 September 1945
Oct
79.2 mm (3.1 in)
17 October 1935
Nov
135.6 mm (5.3 in)
17 November 1952
Dec
44.7 mm (1.8 in)
23 December 1941
Period of Record Coverage
1924 to 1956
Complete yearUnder 90 percent of days
33 years of record at Tingley, 1924 to 1956. 2 years have data for under 90 percent of days and are left out of rankings: 1924, 1956.
Cooler than the station meanWarmer than the station mean
One stripe for each of 31 complete years at Tingley, 1925 to 1955. Blue stripes are years cooler than the station's own mean of 10.3 C (50.6 F); red stripes are warmer. The coolest year was 1951, at 8.5 C (47.3 F), and the warmest was 1931, at 12.4 C (54.3 F). The strongest colour marks a difference of 2.1 C (3.8 F).
Annual mean temperature at Tingley as warming stripes, 1925 to 1955
Year
Annual mean temperature
Difference from the station mean
1925
10.2 C
-0.15 C
1926
10.0 C
-0.34 C
1927
10.0 C
-0.36 C
1928
10.0 C
-0.29 C
1929
8.9 C
-1.46 C
1930
11.0 C
+0.64 C
1931
12.4 C
+2.06 C
1932
9.9 C
-0.47 C
1933
11.3 C
+1.00 C
1934
12.0 C
+1.66 C
1935
10.2 C
-0.13 C
1936
10.4 C
+0.04 C
1937
9.5 C
-0.82 C
1938
11.9 C
+1.58 C
1939
11.5 C
+1.22 C
1940
9.4 C
-0.89 C
1941
11.4 C
+1.09 C
1942
10.2 C
-0.14 C
1943
9.7 C
-0.64 C
1944
10.0 C
-0.28 C
1945
9.3 C
-1.00 C
1946
10.7 C
+0.35 C
1947
9.8 C
-0.53 C
1948
9.9 C
-0.38 C
1949
9.7 C
-0.64 C
1950
8.6 C
-1.77 C
1951
8.5 C
-1.82 C
1952
10.5 C
+0.16 C
1953
11.4 C
+1.08 C
1954
11.6 C
+1.26 C
1955
10.4 C
+0.03 C
The fitted trend in annual mean temperature here over 1925 to 1955 is -0.1 C (-0.5 to 0.3) per decade. The interval includes zero, so the trend is not clearly different from zero. In Fahrenheit: -0.2 F (-1.0 to 0.5) per decade. The slope is a straight line fitted to 31 complete years; the brackets give its 95 percent interval.
Fitted temperature trends per decade at Tingley
Measure
Per decade (C)
Per decade (F)
Period
Complete years
Reading
Annual mean temperature
-0.1 C (-0.5 to 0.3) per decade
-0.2 F (-1.0 to 0.5) per decade
1925 to 1955
31
Not clearly different from zero
Mean daily maximum
0.03 C (-0.47 to 0.52) per decade
0.05 F (-0.84 to 0.94) per decade
1925 to 1955
31
Not clearly different from zero
Mean daily minimum
-0.3 C (-0.7 to 0.1) per decade
-0.5 F (-1.2 to 0.3) per decade
1925 to 1955
31
Not clearly different from zero
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
1924 to 1956
Yearly extremes at Tingley: the record and the median year
Measure
Record
Year of the record
Median year
Years with a value
Hottest day (TXx)
44.4 C (111.9 F)
1936
37.8 C (100.0 F)
33
Coldest night (TNn)
-31.1 C (-24.0 F)
1948
-25.6 C (-14.1 F)
33
Wettest day (Rx1day)
135.6 mm (5.3 in)
1952
67.1 mm (2.6 in)
33
Wettest five days (Rx5day)
208.8 mm (8.2 in)
1926
105.4 mm (4.1 in)
33
Longest dry spell (CDD)
56 days
1952
26 days
33
Hottest day (TXx)
The hottest day of the year at Tingley, 1924 to 1956. The record is 44.4 C (111.9 F) in 1936, marked on the chart; the median year is 37.8 C (100.0 F).
Hottest day (TXx) at Tingley by year
Year
Hottest day (TXx)
1924
35.0 C (95.0 F)
1925
37.2 C (99.0 F)
1926
36.1 C (97.0 F)
1927
35.6 C (96.1 F)
1928
35.0 C (95.0 F)
1929
37.8 C (100.0 F)
1930
41.1 C (106.0 F)
1931
40.0 C (104.0 F)
1932
37.2 C (99.0 F)
1933
40.0 C (104.0 F)
1934
43.9 C (111.0 F)
1935
38.9 C (102.0 F)
1936
44.4 C (111.9 F)
1937
37.8 C (100.0 F)
1938
38.9 C (102.0 F)
1939
37.8 C (100.0 F)
1940
40.0 C (104.0 F)
1941
37.8 C (100.0 F)
1942
35.0 C (95.0 F)
1943
33.3 C (91.9 F)
1944
34.4 C (93.9 F)
1945
35.0 C (95.0 F)
1946
36.1 C (97.0 F)
1947
37.8 C (100.0 F)
1948
35.6 C (96.1 F)
1949
35.0 C (95.0 F)
1950
33.3 C (91.9 F)
1951
35.0 C (95.0 F)
1952
36.7 C (98.1 F)
1953
37.8 C (100.0 F)
1954
39.4 C (102.9 F)
1955
38.3 C (100.9 F)
1956
38.9 C (102.0 F)
Coldest night (TNn)
The coldest night of the year at Tingley, 1924 to 1956. The record is -31.1 C (-24.0 F) in 1948, marked on the chart; the median year is -25.6 C (-14.1 F).
Coldest night (TNn) at Tingley by year
Year
Coldest night (TNn)
1924
-30.6 C (-23.1 F)
1925
-23.3 C (-9.9 F)
1926
-23.3 C (-9.9 F)
1927
-25.0 C (-13.0 F)
1928
-24.4 C (-11.9 F)
1929
-26.7 C (-16.1 F)
1930
-30.6 C (-23.1 F)
1931
-19.4 C (-2.9 F)
1932
-26.7 C (-16.1 F)
1933
-29.4 C (-20.9 F)
1934
-24.4 C (-11.9 F)
1935
-25.0 C (-13.0 F)
1936
-28.9 C (-20.0 F)
1937
-21.7 C (-7.1 F)
1938
-23.3 C (-9.9 F)
1939
-23.3 C (-9.9 F)
1940
-29.4 C (-20.9 F)
1941
-17.8 C (0.0 F)
1942
-28.9 C (-20.0 F)
1943
-28.3 C (-18.9 F)
1944
-28.9 C (-20.0 F)
1945
-26.7 C (-16.1 F)
1946
-23.9 C (-11.0 F)
1947
-30.0 C (-22.0 F)
1948
-31.1 C (-24.0 F)
1949
-25.0 C (-13.0 F)
1950
-25.6 C (-14.1 F)
1951
-27.8 C (-18.0 F)
1952
-21.1 C (-6.0 F)
1953
-21.7 C (-7.1 F)
1954
-26.1 C (-15.0 F)
1955
-27.2 C (-17.0 F)
1956
-21.7 C (-7.1 F)
Wettest day (Rx1day)
The wettest day of the year at Tingley, 1924 to 1956. The record is 135.6 mm (5.3 in) in 1952, marked on the chart; the median year is 67.1 mm (2.6 in).
Wettest day (Rx1day) at Tingley by year
Year
Wettest day (Rx1day)
1924
56.1 mm (2.2 in)
1925
61.0 mm (2.4 in)
1926
101.1 mm (4.0 in)
1927
64.3 mm (2.5 in)
1928
69.1 mm (2.7 in)
1929
52.1 mm (2.1 in)
1930
60.7 mm (2.4 in)
1931
69.9 mm (2.8 in)
1932
56.4 mm (2.2 in)
1933
74.2 mm (2.9 in)
1934
48.3 mm (1.9 in)
1935
79.2 mm (3.1 in)
1936
67.1 mm (2.6 in)
1937
54.6 mm (2.1 in)
1938
48.0 mm (1.9 in)
1939
58.2 mm (2.3 in)
1940
72.6 mm (2.9 in)
1941
65.8 mm (2.6 in)
1942
40.9 mm (1.6 in)
1943
73.2 mm (2.9 in)
1944
82.3 mm (3.2 in)
1945
88.4 mm (3.5 in)
1946
71.4 mm (2.8 in)
1947
76.2 mm (3.0 in)
1948
41.1 mm (1.6 in)
1949
105.9 mm (4.2 in)
1950
114.3 mm (4.5 in)
1951
75.2 mm (3.0 in)
1952
135.6 mm (5.3 in)
1953
32.8 mm (1.3 in)
1954
69.1 mm (2.7 in)
1955
45.7 mm (1.8 in)
1956
18.0 mm (0.7 in)
Wettest five days (Rx5day)
The wettest five days of the year at Tingley, 1924 to 1956. The record is 208.8 mm (8.2 in) in 1926, marked on the chart; the median year is 105.4 mm (4.1 in).
Wettest five days (Rx5day) at Tingley by year
Year
Wettest five days (Rx5day)
1924
78.2 mm (3.1 in)
1925
74.2 mm (2.9 in)
1926
208.8 mm (8.2 in)
1927
85.9 mm (3.4 in)
1928
145.7 mm (5.7 in)
1929
72.4 mm (2.9 in)
1930
64.0 mm (2.5 in)
1931
118.5 mm (4.7 in)
1932
118.1 mm (4.6 in)
1933
74.2 mm (2.9 in)
1934
114.1 mm (4.5 in)
1935
117.1 mm (4.6 in)
1936
92.2 mm (3.6 in)
1937
69.3 mm (2.7 in)
1938
89.2 mm (3.5 in)
1939
105.4 mm (4.1 in)
1940
152.7 mm (6.0 in)
1941
111.0 mm (4.4 in)
1942
70.1 mm (2.8 in)
1943
92.9 mm (3.7 in)
1944
114.6 mm (4.5 in)
1945
108.7 mm (4.3 in)
1946
116.9 mm (4.6 in)
1947
95.8 mm (3.8 in)
1948
54.3 mm (2.1 in)
1949
123.2 mm (4.9 in)
1950
162.5 mm (6.4 in)
1951
109.0 mm (4.3 in)
1952
137.1 mm (5.4 in)
1953
58.7 mm (2.3 in)
1954
112.5 mm (4.4 in)
1955
65.3 mm (2.6 in)
1956
27.3 mm (1.1 in)
Longest dry spell (CDD)
The longest dry spell of the year at Tingley, 1924 to 1956. The record is 56 days in 1952, marked on the chart; the median year is 26 days.
Longest dry spell (CDD) at Tingley by year
Year
Longest dry spell (CDD)
1924
20 days
1925
25 days
1926
16 days
1927
34 days
1928
17 days
1929
30 days
1930
31 days
1931
30 days
1932
28 days
1933
32 days
1934
35 days
1935
19 days
1936
25 days
1937
20 days
1938
19 days
1939
37 days
1940
25 days
1941
18 days
1942
30 days
1943
27 days
1944
28 days
1945
23 days
1946
25 days
1947
41 days
1948
23 days
1949
26 days
1950
26 days
1951
17 days
1952
56 days
1953
24 days
1954
31 days
1955
28 days
1956
21 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
31 years with a frost
Across 31 years with a frost, the median last spring frost at Tingley falls on 27 April and the median first autumn frost on 12 October, which leaves a median of 167 days between them.
Fitted over all years, the growing season changes by +2.1 days per decade at this station.
Frost dates and growing season at Tingley
Measure
Median, all years
Earliest period
Recent period (1926 to 1955)
Recent against earliest
Fitted trend
Last spring frost
27 April
n/a
26 April
n/a
-1.5 days per decade
First autumn frost
12 October
n/a
13 October
n/a
+0.6 days per decade
Growing days
167 days
n/a
170 days
n/a
+2.1 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
31 years, 1925 to 1955
A day with at least 65.9 mm (2.6 in) of rain is expected about once in 2 years. A day with at least 139.4 mm (5.5 in) of rain is expected about once in 100 years.
Rainfall return levels at Tingley: the daily rain expected about once in a given number of years
Expected about once in
A day with at least
Note
2 years
65.9 mm (2.6 in)
5 years
85.7 mm (3.4 in)
10 years
98.8 mm (3.9 in)
25 years
115.3 mm (4.5 in)
50 years
127.4 mm (5.0 in)
Longer than the 31 years of record
100 years
139.4 mm (5.5 in)
Longer than the 31 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, 31 years of values from 1925 to 1955.
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: 135.6 mm (5.3 in) in 1952; 114.3 mm (4.5 in) in 1950; 105.9 mm (4.2 in) in 1949.
Download the Data
Data for Tingley standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Tingley 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.