Woodward 7 N Weather Records (USC00139178)

Record envelope, standing records and threshold days for Woodward 7 N (USC00139178), Iowa, United States, with 31 years of record.

Key Facts for Woodward 7 N

Woodward 7 N (USC00139178) is a weather station in Iowa, United States at 41.95 latitude and -93.92 longitude, 323 m (1,060 ft) above sea level.
The station reports from 1944 to 1974, 31 years of record.
1,464 records set at Woodward 7 N 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, 41.95 latitude, -93.92 longitude.
Elevation: 323 m (1,060 ft).
Period of record: 1944 to 1974, 31 years.
Eligible elements: none yet.

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 Woodward 7 N. 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 Woodward 7 N, with 2026 drawn through them
Month	Highest record high	Lowest record low	2026 highest maximum	2026 lowest minimum
Jan	14.4 C (57.9 F)	-32.8 C (-27.0 F)	n/a	n/a
Feb	18.3 C (64.9 F)	-30.6 C (-23.1 F)	n/a	n/a
Mar	29.4 C (84.9 F)	-30.6 C (-23.1 F)	n/a	n/a
Apr	33.3 C (91.9 F)	-10.0 C (14.0 F)	n/a	n/a
May	37.8 C (100.0 F)	-3.3 C (26.1 F)	n/a	n/a
Jun	37.8 C (100.0 F)	2.8 C (37.0 F)	n/a	n/a
Jul	40.0 C (104.0 F)	5.6 C (42.1 F)	n/a	n/a
Aug	38.3 C (100.9 F)	3.9 C (39.0 F)	n/a	n/a
Sep	37.8 C (100.0 F)	-1.7 C (28.9 F)	n/a	n/a
Oct	35.0 C (95.0 F)	-10.0 C (14.0 F)	n/a	n/a
Nov	25.0 C (77.0 F)	-23.3 C (-9.9 F)	n/a	n/a
Dec	19.4 C (66.9 F)	-28.9 C (-20.0 F)	n/a	n/a

Which Years Hold Standing Records

1,464 standing records

1,464 records at Woodward 7 N still stand. 1951 holds the most, with 85.

Standing records at Woodward 7 N by the year they were set
Year set	Standing records
1946	26
1947	68
1948	51
1949	39
1950	59
1951	85
1952	58
1953	54
1954	62
1955	71
1956	47
1957	44
1958	45
1959	47
1960	47
1961	36
1962	76
1963	64
1964	60
1965	43
1966	54
1967	54
1968	60
1969	37
1970	48
1971	41
1972	59
1973	28
1974	1

Wettest Day of Each Month

Sep: 117.1 mm (4.6 in)

The wettest day on record for each calendar month at Woodward 7 N. The most was 117.1 mm (4.6 in) on 30 September 1961.

Record daily precipitation for each month at Woodward 7 N
Month	Record daily precipitation (mm)	Date
Jan	33.0 mm (1.3 in)	3 January 1971
Feb	52.1 mm (2.1 in)	18 February 1971
Mar	53.3 mm (2.1 in)	26 March 1959
Apr	54.6 mm (2.1 in)	20 April 1974
May	63.8 mm (2.5 in)	5 May 1950
Jun	111.8 mm (4.4 in)	12 June 1966
Jul	86.9 mm (3.4 in)	2 July 1958
Aug	109.7 mm (4.3 in)	22 August 1954
Sep	117.1 mm (4.6 in)	30 September 1961
Oct	51.6 mm (2.0 in)	31 October 1947
Nov	43.2 mm (1.7 in)	5 November 1948
Dec	32.0 mm (1.3 in)	19 December 1968

Period of Record Coverage

1944 to 1974

30 years of record at Woodward 7 N, 1944 to 1974. 4 years have data for under 90 percent of days and are left out of rankings: 1944, 1946, 1973, 1974.

Days with data per year at Woodward 7 N
Year	Days with data	Share of year	Complete
1944	30	8%	No
1946	122	33%	No
1947	361	99%	Yes
1948	365	100%	Yes
1949	356	98%	Yes
1950	359	98%	Yes
1951	365	100%	Yes
1952	366	100%	Yes
1953	359	98%	Yes
1954	364	100%	Yes
1955	365	100%	Yes
1956	365	100%	Yes
1957	363	99%	Yes
1958	362	99%	Yes
1959	364	100%	Yes
1960	364	99%	Yes
1961	363	99%	Yes
1962	364	100%	Yes
1963	362	99%	Yes
1964	366	100%	Yes
1965	365	100%	Yes
1966	364	100%	Yes
1967	365	100%	Yes
1968	366	100%	Yes
1969	364	100%	Yes
1970	365	100%	Yes
1971	365	100%	Yes
1972	366	100%	Yes
1973	242	66%	No
1974	36	10%	No

Latest Records

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

Climate Trend

26 complete years, 1947 to 1972

One stripe for each of 26 complete years at Woodward 7 N, 1947 to 1972. Blue stripes are years cooler than the station's own mean of 9.4 C (48.9 F); red stripes are warmer. The coolest year was 1951, at 7.8 C (46.1 F), and the warmest was 1954, at 10.6 C (51.2 F). The strongest colour marks a difference of 1.6 C (2.9 F).

Annual mean temperature at Woodward 7 N as warming stripes, 1947 to 1972
Year	Annual mean temperature	Difference from the station mean
1947	9.4 C	+0.02 C
1948	9.6 C	+0.23 C
1949	10.0 C	+0.55 C
1950	8.5 C	-0.91 C
1951	7.8 C	-1.57 C
1952	9.7 C	+0.28 C
1953	10.6 C	+1.20 C
1954	10.6 C	+1.24 C
1955	10.0 C	+0.55 C
1956	10.2 C	+0.77 C
1957	9.7 C	+0.25 C
1958	9.3 C	-0.07 C
1959	9.2 C	-0.22 C
1960	8.5 C	-0.92 C
1961	9.1 C	-0.31 C
1962	8.9 C	-0.47 C
1963	9.7 C	+0.34 C
1964	10.3 C	+0.93 C
1965	9.2 C	-0.16 C
1966	9.1 C	-0.29 C
1967	9.4 C	-0.05 C
1968	9.7 C	+0.30 C
1969	8.6 C	-0.77 C
1970	9.3 C	-0.08 C
1971	9.6 C	+0.22 C
1972	8.3 C	-1.08 C

This station does not have enough complete years (30 are needed) to fit a temperature trend.

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

1944 to 1974

Yearly extremes at Woodward 7 N: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Hottest day (TXx)	40.0 C (104.0 F)	1955	36.1 C (97.0 F)	30
Coldest night (TNn)	-32.8 C (-27.0 F)	1970	-27.8 C (-18.0 F)	30
Wettest day (Rx1day)	117.1 mm (4.6 in)	1961	57.5 mm (2.3 in)	30
Wettest five days (Rx5day)	259.1 mm (10.2 in)	1954	86.9 mm (3.4 in)	30
Longest dry spell (CDD)	63 days	1952	25 days	30

Hottest day (TXx)

The hottest day of the year at Woodward 7 N, 1944 to 1974. The record is 40.0 C (104.0 F) in 1955, marked on the chart; the median year is 36.1 C (97.0 F).

Hottest day (TXx) at Woodward 7 N by year
Year	Hottest day (TXx)
1944	31.1 C (88.0 F)
1946	35.6 C (96.1 F)
1947	37.8 C (100.0 F)
1948	38.3 C (100.9 F)
1949	34.4 C (93.9 F)
1950	34.4 C (93.9 F)
1951	33.3 C (91.9 F)
1952	35.6 C (96.1 F)
1953	36.1 C (97.0 F)
1954	37.8 C (100.0 F)
1955	40.0 C (104.0 F)
1956	40.0 C (104.0 F)
1957	39.4 C (102.9 F)
1958	35.0 C (95.0 F)
1959	36.1 C (97.0 F)
1960	35.6 C (96.1 F)
1961	36.1 C (97.0 F)
1962	34.4 C (93.9 F)
1963	38.3 C (100.9 F)
1964	35.0 C (95.0 F)
1965	36.7 C (98.1 F)
1966	36.1 C (97.0 F)
1967	37.8 C (100.0 F)
1968	36.1 C (97.0 F)
1969	34.4 C (93.9 F)
1970	36.1 C (97.0 F)
1971	36.1 C (97.0 F)
1972	35.0 C (95.0 F)
1973	35.0 C (95.0 F)
1974	26.7 C (80.1 F)

Coldest night (TNn)

The coldest night of the year at Woodward 7 N, 1944 to 1974. The record is -32.8 C (-27.0 F) in 1970, marked on the chart; the median year is -27.8 C (-18.0 F).

Coldest night (TNn) at Woodward 7 N by year
Year	Coldest night (TNn)
1944	6.1 C (43.0 F)
1946	-16.1 C (3.0 F)
1947	-27.2 C (-17.0 F)
1948	-30.6 C (-23.1 F)
1949	-27.2 C (-17.0 F)
1950	-25.6 C (-14.1 F)
1951	-28.3 C (-18.9 F)
1952	-25.0 C (-13.0 F)
1953	-23.9 C (-11.0 F)
1954	-26.7 C (-16.1 F)
1955	-27.8 C (-18.0 F)
1956	-30.0 C (-22.0 F)
1957	-31.7 C (-25.1 F)
1958	-30.6 C (-23.1 F)
1959	-27.8 C (-18.0 F)
1960	-30.6 C (-23.1 F)
1961	-26.7 C (-16.1 F)
1962	-30.6 C (-23.1 F)
1963	-30.0 C (-22.0 F)
1964	-25.0 C (-13.0 F)
1965	-26.1 C (-15.0 F)
1966	-30.6 C (-23.1 F)
1967	-28.3 C (-18.9 F)
1968	-27.8 C (-18.0 F)
1969	-26.1 C (-15.0 F)
1970	-32.8 C (-27.0 F)
1971	-30.6 C (-23.1 F)
1972	-30.0 C (-22.0 F)
1973	-26.7 C (-16.1 F)
1974	-18.3 C (-0.9 F)

Wettest day (Rx1day)

The wettest day of the year at Woodward 7 N, 1944 to 1974. The record is 117.1 mm (4.6 in) in 1961, marked on the chart; the median year is 57.5 mm (2.3 in).

Wettest day (Rx1day) at Woodward 7 N by year
Year	Wettest day (Rx1day)
1944	15.7 mm (0.6 in)
1946	62.7 mm (2.5 in)
1947	100.6 mm (4.0 in)
1948	65.3 mm (2.6 in)
1949	27.2 mm (1.1 in)
1950	63.8 mm (2.5 in)
1951	65.5 mm (2.6 in)
1952	56.6 mm (2.2 in)
1953	38.1 mm (1.5 in)
1954	109.7 mm (4.3 in)
1955	40.6 mm (1.6 in)
1956	58.9 mm (2.3 in)
1957	77.5 mm (3.1 in)
1958	86.9 mm (3.4 in)
1959	53.3 mm (2.1 in)
1960	67.3 mm (2.6 in)
1961	117.1 mm (4.6 in)
1962	35.1 mm (1.4 in)
1963	74.4 mm (2.9 in)
1964	52.3 mm (2.1 in)
1965	38.4 mm (1.5 in)
1966	111.8 mm (4.4 in)
1967	62.5 mm (2.5 in)
1968	52.8 mm (2.1 in)
1969	44.5 mm (1.8 in)
1970	58.4 mm (2.3 in)
1971	53.3 mm (2.1 in)
1972	52.1 mm (2.1 in)
1973	50.0 mm (2.0 in)
1974	54.6 mm (2.1 in)

Wettest five days (Rx5day)

The wettest five days of the year at Woodward 7 N, 1944 to 1974. The record is 259.1 mm (10.2 in) in 1954, marked on the chart; the median year is 86.9 mm (3.4 in).

Wettest five days (Rx5day) at Woodward 7 N by year
Year	Wettest five days (Rx5day)
1944	32.5 mm (1.3 in)
1946	125.5 mm (4.9 in)
1947	115.1 mm (4.5 in)
1948	77.7 mm (3.1 in)
1949	44.9 mm (1.8 in)
1950	117.4 mm (4.6 in)
1951	96.6 mm (3.8 in)
1952	86.6 mm (3.4 in)
1953	52.8 mm (2.1 in)
1954	259.1 mm (10.2 in)
1955	59.9 mm (2.4 in)
1956	71.6 mm (2.8 in)
1957	133.9 mm (5.3 in)
1958	129.0 mm (5.1 in)
1959	91.9 mm (3.6 in)
1960	96.5 mm (3.8 in)
1961	117.1 mm (4.6 in)
1962	55.3 mm (2.2 in)
1963	136.2 mm (5.4 in)
1964	81.3 mm (3.2 in)
1965	83.4 mm (3.3 in)
1966	160.8 mm (6.3 in)
1967	113.0 mm (4.4 in)
1968	87.3 mm (3.4 in)
1969	79.1 mm (3.1 in)
1970	122.4 mm (4.8 in)
1971	84.1 mm (3.3 in)
1972	71.9 mm (2.8 in)
1973	64.0 mm (2.5 in)
1974	54.6 mm (2.1 in)

Longest dry spell (CDD)

The longest dry spell of the year at Woodward 7 N, 1944 to 1974. The record is 63 days in 1952, marked on the chart; the median year is 25 days.

Longest dry spell (CDD) at Woodward 7 N by year
Year	Longest dry spell (CDD)
1944	9 days
1946	19 days
1947	30 days
1948	31 days
1949	21 days
1950	36 days
1951	17 days
1952	63 days
1953	27 days
1954	25 days
1955	18 days
1956	34 days
1957	18 days
1958	45 days
1959	17 days
1960	17 days
1961	25 days
1962	34 days
1963	17 days
1964	24 days
1965	20 days
1966	33 days
1967	27 days
1968	38 days
1969	19 days
1970	42 days
1971	31 days
1972	25 days
1973	18 days
1974	14 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

26 years with a frost

Across 26 years with a frost, the median last spring frost at Woodward 7 N falls on 29 April and the median first autumn frost on 9 October, which leaves a median of 161 days between them.

Fitted over all years, the growing season changes by -4.3 days per decade at this station.

Frost dates and growing season at Woodward 7 N
Measure	Median, all years	Earliest period	Recent period (1947 to 1972)	Recent against earliest	Fitted trend
Last spring frost	29 April	n/a	29 April	n/a	+0.6 days per decade
First autumn frost	9 October	n/a	9 October	n/a	-3.7 days per decade
Growing days	161 days	n/a	161 days	n/a	-4.3 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.

Download the Data

Data for Woodward 7 N standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Woodward 7 N 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).