Walford 2 SE Weather Records (USC00138632)

Record envelope, standing records and threshold days for Walford 2 SE (USC00138632), Iowa, United States, with 109 years of record.

Key Facts for Walford 2 SE

Walford 2 SE (USC00138632) is a weather station in Iowa, United States at 41.86 latitude and -91.80 longitude, 241 m (790 ft) above sea level.
The station reports from 1904 to 2012, 109 years of record.
232 records set at Walford 2 SE still stand.
Records are tracked for prcp, snow, snwd: an element needs 30 years of data to be eligible.
Walford 2 SE set a daily record precipitation of 40.6 mm (1.6 in) on 20 March 2012.

About the Station

Location: Iowa, United States, 41.86 latitude, -91.80 longitude.
Elevation: 241 m (790 ft).
Period of record: 1904 to 2012, 109 years.
Eligible elements: prcp, snow, snwd.

Daily Record Envelope and 2026

0 days at or beyond a record

The band shows the record high and record low for each calendar day at Walford 2 SE. 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 Walford 2 SE, with 2026 drawn through them
Month	Highest record high	Lowest record low	2026 highest maximum	2026 lowest minimum
Jan	n/a	n/a	n/a	n/a
Feb	n/a	n/a	n/a	n/a
Mar	n/a	n/a	n/a	n/a
Apr	26.7 C (80.1 F)	-7.8 C (18.0 F)	n/a	n/a
May	34.4 C (93.9 F)	-2.2 C (28.0 F)	n/a	n/a
Jun	n/a	n/a	n/a	n/a
Jul	n/a	n/a	n/a	n/a
Aug	n/a	n/a	n/a	n/a
Sep	n/a	n/a	n/a	n/a
Oct	n/a	n/a	n/a	n/a
Nov	n/a	n/a	n/a	n/a
Dec	n/a	n/a	n/a	n/a

Which Years Hold Standing Records

232 standing records

232 records at Walford 2 SE still stand. 1904 holds the most, with 232.

Wettest Day of Each Month

Jun: 122.4 mm (4.8 in)

The wettest day on record for each calendar month at Walford 2 SE. The most was 122.4 mm (4.8 in) on 17 June 1990.

Record daily precipitation for each month at Walford 2 SE
Month	Record daily precipitation (mm)	Date
Jan	22.9 mm (0.9 in)	16 January 1980
Feb	29.7 mm (1.2 in)	9 February 2001
Mar	53.8 mm (2.1 in)	31 March 1998
Apr	62.2 mm (2.4 in)	23 April 1989
May	62.2 mm (2.4 in)	25 May 1904
Jun	122.4 mm (4.8 in)	17 June 1990
Jul	89.4 mm (3.5 in)	5 July 1993
Aug	92.5 mm (3.6 in)	25 August 1990
Sep	83.8 mm (3.3 in)	26 September 1981
Oct	69.9 mm (2.8 in)	2 October 2002
Nov	46.5 mm (1.8 in)	1 November 1991
Dec	35.3 mm (1.4 in)	12 December 2000

Period of Record Coverage

1904 to 1904

1 years of record at Walford 2 SE, 1904 to 1904. 1 years have data for under 90 percent of days and are left out of rankings: 1904.

Latest Records

Latest records at Walford 2 SE
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
20 March 2012	Walford 2 SE, US	daily rain	40.6 mm (1.6 in)	27.4 mm (1.1 in)	17 years	51 of 100 (Notable)
12 March 2012	Walford 2 SE, US	daily rain	7.6 mm (0.30 in)	2.8 mm (0.11 in)	22 years	19 of 100 (Routine)
3 March 2012	Walford 2 SE, US	daily snowfall	5.1 cm (2.0 in)	1.3 cm (0.5 in)	4 years	14 of 100 (Routine)
24 February 2012	Walford 2 SE, US	daily snowfall	5.1 cm (2.0 in)	3.8 cm (1.5 in)	25 years	26 of 100 (Routine)
14 February 2012	Walford 2 SE, US	daily rain	3.0 mm (0.12 in)	0.2 mm (0.01 in)	24 years	17 of 100 (Routine)
12 January 2012	Walford 2 SE, US	daily snowfall	5.1 cm (2.0 in)	1.3 cm (0.5 in)	32 years	21 of 100 (Routine)
15 December 2011	Walford 2 SE, US	daily rain	14.0 mm (0.6 in)	3.8 mm (0.15 in)	28 years	20 of 100 (Routine)
14 December 2011	Walford 2 SE, US	daily rain	17.0 mm (0.7 in)	6.3 mm (0.25 in)	5 years	20 of 100 (Routine)
9 November 2011	Walford 2 SE, US	daily rain	24.1 mm (0.9 in)	15.5 mm (0.6 in)	28 years	20 of 100 (Routine)
3 September 2011	Walford 2 SE, US	daily rain	33.0 mm (1.3 in)	22.8 mm (0.9 in)	2 years	26 of 100 (Routine)
23 July 2011	Walford 2 SE, US	daily rain	39.4 mm (1.6 in)	15.8 mm (0.6 in)	17 years	25 of 100 (Routine)
10 June 2011	Walford 2 SE, US	daily rain	37.1 mm (1.5 in)	16.3 mm (0.6 in)	26 years	28 of 100 (Routine)
3 June 2011	Walford 2 SE, US	daily rain	17.0 mm (0.7 in)	4.3 mm (0.17 in)	2 years	12 of 100 (Routine)
15 May 2011	Walford 2 SE, US	daily rain	17.0 mm (0.7 in)	6.8 mm (0.27 in)	24 years	20 of 100 (Routine)
16 December 2010	Walford 2 SE, US	daily rain	26.4 mm (1.0 in)	15.5 mm (0.6 in)	17 years	39 of 100 (Notable)
30 November 2010	Walford 2 SE, US	daily rain	9.4 mm (0.37 in)	0.5 mm (0.02 in)	19 years	15 of 100 (Routine)
24 September 2010	Walford 2 SE, US	daily rain	16.5 mm (0.6 in)	8.9 mm (0.35 in)	13 years	20 of 100 (Routine)
22 September 2010	Walford 2 SE, US	daily rain	23.9 mm (0.9 in)	8.7 mm (0.34 in)	24 years	20 of 100 (Routine)
1 September 2010	Walford 2 SE, US	daily rain	50.8 mm (2.0 in)	19.0 mm (0.7 in)	105 years	54 of 100 (Notable)
11 August 2010	Walford 2 SE, US	daily rain	31.5 mm (1.2 in)	10.2 mm (0.4 in)	13 years	20 of 100 (Routine)

Extremes by Year

1904 to 2012

Yearly extremes at Walford 2 SE: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Hottest day (TXx)	34.4 C (93.9 F)	1904	34.4 C (93.9 F)	1
Coldest night (TNn)	-7.8 C (18.0 F)	1904	-7.8 C (18.0 F)	1
Wettest day (Rx1day)	122.4 mm (4.8 in)	1990	62.2 mm (2.4 in)	37
Wettest five days (Rx5day)	175.7 mm (6.9 in)	1990	89.9 mm (3.5 in)	37
Longest dry spell (CDD)	38 days	1988	23 days	37

Hottest day (TXx)

The hottest day of the year at Walford 2 SE, 1904 to 2012. The record is 34.4 C (93.9 F) in 1904, marked on the chart; the median year is 34.4 C (93.9 F).

Hottest day (TXx) at Walford 2 SE by year
Year	Hottest day (TXx)
1904	34.4 C (93.9 F)
1905	n/a
1978	n/a
1979	n/a
1980	n/a
1981	n/a
1982	n/a
1983	n/a
1984	n/a
1985	n/a
1986	n/a
1987	n/a
1988	n/a
1989	n/a
1990	n/a
1991	n/a
1992	n/a
1993	n/a
1994	n/a
1995	n/a
1996	n/a
1997	n/a
1998	n/a
1999	n/a
2000	n/a
2001	n/a
2002	n/a
2003	n/a
2004	n/a
2005	n/a
2006	n/a
2007	n/a
2008	n/a
2009	n/a
2010	n/a
2011	n/a
2012	n/a

Coldest night (TNn)

The coldest night of the year at Walford 2 SE, 1904 to 2012. The record is -7.8 C (18.0 F) in 1904, marked on the chart; the median year is -7.8 C (18.0 F).

Coldest night (TNn) at Walford 2 SE by year
Year	Coldest night (TNn)
1904	-7.8 C (18.0 F)
1905	n/a
1978	n/a
1979	n/a
1980	n/a
1981	n/a
1982	n/a
1983	n/a
1984	n/a
1985	n/a
1986	n/a
1987	n/a
1988	n/a
1989	n/a
1990	n/a
1991	n/a
1992	n/a
1993	n/a
1994	n/a
1995	n/a
1996	n/a
1997	n/a
1998	n/a
1999	n/a
2000	n/a
2001	n/a
2002	n/a
2003	n/a
2004	n/a
2005	n/a
2006	n/a
2007	n/a
2008	n/a
2009	n/a
2010	n/a
2011	n/a
2012	n/a

Wettest day (Rx1day)

The wettest day of the year at Walford 2 SE, 1904 to 2012. The record is 122.4 mm (4.8 in) in 1990, marked on the chart; the median year is 62.2 mm (2.4 in).

Wettest day (Rx1day) at Walford 2 SE by year
Year	Wettest day (Rx1day)
1904	62.2 mm (2.4 in)
1905	68.1 mm (2.7 in)
1978	64.0 mm (2.5 in)
1979	56.6 mm (2.2 in)
1980	61.0 mm (2.4 in)
1981	83.8 mm (3.3 in)
1982	86.1 mm (3.4 in)
1983	49.3 mm (1.9 in)
1984	46.0 mm (1.8 in)
1985	32.5 mm (1.3 in)
1986	75.2 mm (3.0 in)
1987	68.6 mm (2.7 in)
1988	69.1 mm (2.7 in)
1989	79.2 mm (3.1 in)
1990	122.4 mm (4.8 in)
1991	46.5 mm (1.8 in)
1992	68.6 mm (2.7 in)
1993	89.4 mm (3.5 in)
1994	38.9 mm (1.5 in)
1995	42.4 mm (1.7 in)
1996	57.4 mm (2.3 in)
1997	50.0 mm (2.0 in)
1998	53.8 mm (2.1 in)
1999	40.1 mm (1.6 in)
2000	54.9 mm (2.2 in)
2001	62.2 mm (2.4 in)
2002	69.9 mm (2.8 in)
2003	65.0 mm (2.6 in)
2004	63.0 mm (2.5 in)
2005	68.1 mm (2.7 in)
2006	35.1 mm (1.4 in)
2007	71.4 mm (2.8 in)
2008	67.3 mm (2.6 in)
2009	63.5 mm (2.5 in)
2010	62.2 mm (2.4 in)
2011	47.5 mm (1.9 in)
2012	40.6 mm (1.6 in)

Wettest five days (Rx5day)

The wettest five days of the year at Walford 2 SE, 1904 to 2012. The record is 175.7 mm (6.9 in) in 1990, marked on the chart; the median year is 89.9 mm (3.5 in).

Wettest five days (Rx5day) at Walford 2 SE by year
Year	Wettest five days (Rx5day)
1904	97.1 mm (3.8 in)
1905	90.4 mm (3.6 in)
1978	116.0 mm (4.6 in)
1979	122.9 mm (4.8 in)
1980	85.1 mm (3.4 in)
1981	130.3 mm (5.1 in)
1982	98.6 mm (3.9 in)
1983	97.7 mm (3.8 in)
1984	79.3 mm (3.1 in)
1985	72.2 mm (2.8 in)
1986	85.0 mm (3.3 in)
1987	124.0 mm (4.9 in)
1988	77.7 mm (3.1 in)
1989	123.4 mm (4.9 in)
1990	175.7 mm (6.9 in)
1991	51.8 mm (2.0 in)
1992	86.4 mm (3.4 in)
1993	174.8 mm (6.9 in)
1994	57.4 mm (2.3 in)
1995	74.7 mm (2.9 in)
1996	103.4 mm (4.1 in)
1997	63.5 mm (2.5 in)
1998	89.9 mm (3.5 in)
1999	62.2 mm (2.4 in)
2000	70.6 mm (2.8 in)
2001	67.5 mm (2.7 in)
2002	103.2 mm (4.1 in)
2003	88.6 mm (3.5 in)
2004	127.1 mm (5.0 in)
2005	96.1 mm (3.8 in)
2006	52.3 mm (2.1 in)
2007	110.0 mm (4.3 in)
2008	141.7 mm (5.6 in)
2009	126.2 mm (5.0 in)
2010	87.6 mm (3.4 in)
2011	74.2 mm (2.9 in)
2012	3.0 mm (0.12 in)

Longest dry spell (CDD)

The longest dry spell of the year at Walford 2 SE, 1904 to 2012. The record is 38 days in 1988, marked on the chart; the median year is 23 days.

Longest dry spell (CDD) at Walford 2 SE by year
Year	Longest dry spell (CDD)
1904	20 days
1905	18 days
1978	26 days
1979	31 days
1980	24 days
1981	31 days
1982	18 days
1983	20 days
1984	16 days
1985	22 days
1986	23 days
1987	34 days
1988	38 days
1989	23 days
1990	19 days
1991	32 days
1992	15 days
1993	19 days
1994	34 days
1995	35 days
1996	30 days
1997	15 days
1998	23 days
1999	37 days
2000	17 days
2001	13 days
2002	36 days
2003	28 days
2004	18 days
2005	23 days
2006	21 days
2007	30 days
2008	14 days
2009	30 days
2010	28 days
2011	21 days
2012	13 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.

Rainfall Return Levels

33 years, 1979 to 2011

A day with at least 60.1 mm (2.4 in) of rain is expected about once in 2 years. A day with at least 111.1 mm (4.4 in) of rain is expected about once in 100 years.

Rainfall return levels at Walford 2 SE: the daily rain expected about once in a given number of years
Expected about once in	A day with at least	Note
2 years	60.1 mm (2.4 in)
5 years	76.1 mm (3.0 in)
10 years	85.7 mm (3.4 in)
25 years	96.7 mm (3.8 in)
50 years	104.2 mm (4.1 in)	Longer than the 33 years of record
100 years	111.1 mm (4.4 in)	Longer than the 33 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, 33 years of values from 1979 to 2011.

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: 122.4 mm (4.8 in) in 1990; 89.4 mm (3.5 in) in 1993; 86.1 mm (3.4 in) in 1982.

Download the Data

Data for Walford 2 SE standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Walford 2 SE 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.

Data as of 2025-12-31. Last revised 31 December 2025 (2025-12-31).