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Data as of 2025-12-31
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Built 2026-10-17 (17 October 2026)

Promise City 6 NW Weather Records (USC00136820)

Record envelope, standing records and threshold days for Promise City 6 NW (USC00136820), Iowa, United States, with 44 years of record.

Key Facts for Promise City 6 NW

  • Promise City 6 NW (USC00136820) is a weather station in Iowa, United States at 40.79 latitude and -93.14 longitude, 288 m (945 ft) above sea level.
  • The station reports from 1970 to 2013, 44 years of record.
  • 0 records set at Promise City 6 NW still stand.
  • Records are tracked for no element yet: an element needs 30 years of data to be eligible.

About the Station

  • Location: Iowa, United States, 40.79 latitude, -93.14 longitude.
  • Elevation: 288 m (945 ft).
  • Period of record: 1970 to 2013, 44 years.
  • Eligible elements: none yet.

Daily Record Envelope and 2026

0 days at or beyond a record
Daily record high and record low at Promise City 6 NW, with 2026 drawn through them The band shows the record high and record low for each calendar day at Promise City 6 NW. The lines show the 2026 daily maximum and minimum. 0 days in 2026 matched or passed a record. Temperatures are in degrees Celsius. 000111 JanFebMarAprMayJunJulAugSepOctNovDec
The band shows the record high and record low for each calendar day at Promise City 6 NW. 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 Promise City 6 NW, with 2026 drawn through them
MonthHighest record highLowest record low2026 highest maximum2026 lowest minimum
Jann/an/an/an/a
Febn/an/an/an/a
Marn/an/an/an/a
Aprn/an/an/an/a
Mayn/an/an/an/a
Junn/an/an/an/a
Juln/an/an/an/a
Augn/an/an/an/a
Sepn/an/an/an/a
Octn/an/an/an/a
Novn/an/an/an/a
Decn/an/an/an/a

Which Years Hold Standing Records

0 standing records
Standing records at Promise City 6 NW by the year they were set 0 records at Promise City 6 NW still stand. 00000000000
0 records at Promise City 6 NW still stand.
Standing records at Promise City 6 NW by the year they were set
Year setStanding records

Wettest Day of Each Month

Apr: 149.9 mm (5.9 in)
Record daily precipitation for each month at Promise City 6 NW The wettest day on record for each calendar month at Promise City 6 NW. The most was 149.9 mm (5.9 in) on 18 April 2013. 050100150 Jan: 19.3 mm (0.8 in), 22 January 1973 Jan Feb: 15.5 mm (0.6 in), 22 February 1974 Feb Mar: 34.3 mm (1.4 in), 25 March 1973 Mar Apr: 149.9 mm (5.9 in), 18 April 2013 Apr May: 77.7 mm (3.1 in), 27 May 1973 May Jun: 67.1 mm (2.6 in), 14 June 1976 Jun Jul: 74.7 mm (2.9 in), 4 July 1974 Jul Aug: 120.9 mm (4.8 in), 8 August 1970 Aug Sep: 49.5 mm (1.9 in), 17 September 1970 Sep Oct: 88.4 mm (3.5 in), 9 October 1970 Oct Nov: 66.0 mm (2.6 in), 2 November 1971 Nov Dec: 32.0 mm (1.3 in), 15 December 1971 Dec
The wettest day on record for each calendar month at Promise City 6 NW. The most was 149.9 mm (5.9 in) on 18 April 2013.
Record daily precipitation for each month at Promise City 6 NW
MonthRecord daily precipitation (mm)Date
Jan19.3 mm (0.8 in)22 January 1973
Feb15.5 mm (0.6 in)22 February 1974
Mar34.3 mm (1.4 in)25 March 1973
Apr149.9 mm (5.9 in)18 April 2013
May77.7 mm (3.1 in)27 May 1973
Jun67.1 mm (2.6 in)14 June 1976
Jul74.7 mm (2.9 in)4 July 1974
Aug120.9 mm (4.8 in)8 August 1970
Sep49.5 mm (1.9 in)17 September 1970
Oct88.4 mm (3.5 in)9 October 1970
Nov66.0 mm (2.6 in)2 November 1971
Dec32.0 mm (1.3 in)15 December 1971

Latest Records

0

No records were set at this station in the latest data.

Extremes by Year

1970 to 2013
Yearly extremes at Promise City 6 NW: the record and the median year
MeasureRecordYear of the recordMedian yearYears with a value
Wettest day (Rx1day)149.9 mm (5.9 in)201363.5 mm (2.5 in)13
Wettest five days (Rx5day)149.3 mm (5.9 in)197084.2 mm (3.3 in)12
Longest dry spell (CDD)42 days201318 days12

Wettest day (Rx1day)

Wettest day (Rx1day) at Promise City 6 NW by year The wettest day of the year at Promise City 6 NW, 1970 to 2013. The record is 149.9 mm (5.9 in) in 2013, marked on the chart; the median year is 63.5 mm (2.5 in). 05010015019701980199020002010Record: 149.9 mm (5.9 in) in 2013
The wettest day of the year at Promise City 6 NW, 1970 to 2013. The record is 149.9 mm (5.9 in) in 2013, marked on the chart; the median year is 63.5 mm (2.5 in).
Wettest day (Rx1day) at Promise City 6 NW by year
YearWettest day (Rx1day)
1970120.9 mm (4.8 in)
197166.0 mm (2.6 in)
197263.5 mm (2.5 in)
197377.7 mm (3.1 in)
197474.7 mm (2.9 in)
197552.1 mm (2.1 in)
197667.1 mm (2.6 in)
197737.6 mm (1.5 in)
197943.2 mm (1.7 in)
198630.2 mm (1.2 in)
201163.5 mm (2.5 in)
201237.8 mm (1.5 in)
2013149.9 mm (5.9 in)

Wettest five days (Rx5day)

Wettest five days (Rx5day) at Promise City 6 NW by year The wettest five days of the year at Promise City 6 NW, 1970 to 2013. The record is 149.3 mm (5.9 in) in 1970, marked on the chart; the median year is 84.2 mm (3.3 in). 507510012515019701980199020002010Record: 149.3 mm (5.9 in) in 1970
The wettest five days of the year at Promise City 6 NW, 1970 to 2013. The record is 149.3 mm (5.9 in) in 1970, marked on the chart; the median year is 84.2 mm (3.3 in).
Wettest five days (Rx5day) at Promise City 6 NW by year
YearWettest five days (Rx5day)
1970149.3 mm (5.9 in)
197185.5 mm (3.4 in)
197278.0 mm (3.1 in)
197385.6 mm (3.4 in)
197483.0 mm (3.3 in)
197585.3 mm (3.4 in)
197697.3 mm (3.8 in)
197758.4 mm (2.3 in)
197969.9 mm (2.8 in)
198664.0 mm (2.5 in)
2011n/a
201252.9 mm (2.1 in)
2013128.8 mm (5.1 in)

Longest dry spell (CDD)

Longest dry spell (CDD) at Promise City 6 NW by year The longest dry spell of the year at Promise City 6 NW, 1970 to 2013. The record is 42 days in 2013, marked on the chart; the median year is 18 days. 020406019701980199020002010Record: 42 days in 2013
The longest dry spell of the year at Promise City 6 NW, 1970 to 2013. The record is 42 days in 2013, marked on the chart; the median year is 18 days.
Longest dry spell (CDD) at Promise City 6 NW by year
YearLongest dry spell (CDD)
197015 days
197131 days
197214 days
197316 days
197425 days
197532 days
197625 days
197719 days
19796 days
198610 days
2011n/a
20121 day
201342 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.

Download the Data

  • Data for Promise City 6 NW standing records by year: CSV or JSON. Field meanings are on the data page.
  • Data for Promise City 6 NW 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.

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