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

Altamont Weather Records (USC00400116)

Record envelope, standing records and threshold days for Altamont (USC00400116), Tennessee, United States, with 34 years of record.

Key Facts for Altamont

  • Altamont (USC00400116) is a weather station in Tennessee, United States at 35.43 latitude and -85.72 longitude, 586 m (1,923 ft) above sea level.
  • The station reports from 1929 to 1962, 34 years of record.
  • 0 records set at Altamont still stand.
  • Records are tracked for no element yet: an element needs 30 years of data to be eligible.

About the Station

  • Location: Tennessee, United States, 35.43 latitude, -85.72 longitude.
  • Elevation: 586 m (1,923 ft).
  • Period of record: 1929 to 1962, 34 years.
  • Eligible elements: none yet.

Daily Record Envelope and 2026

0 days at or beyond a record
Daily record high and record low at Altamont, with 2026 drawn through them The band shows the record high and record low for each calendar day at Altamont. 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 Altamont. 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 Altamont, with 2026 drawn through them
MonthHighest record highLowest record low2026 highest maximum2026 lowest minimum
Jann/an/an/an/a
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Aprn/an/an/an/a
Mayn/an/an/an/a
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Juln/an/an/an/a
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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 Altamont by the year they were set 0 records at Altamont still stand. 00000000000
0 records at Altamont still stand.
Standing records at Altamont by the year they were set
Year setStanding records

Wettest Day of Each Month

Jul: 125.0 mm (4.9 in)
Record daily precipitation for each month at Altamont The wettest day on record for each calendar month at Altamont. The most was 125.0 mm (4.9 in) on 25 July 1959. 050100150 Jan: 98.0 mm (3.9 in), 21 January 1954 Jan Feb: 71.1 mm (2.8 in), 1 February 1951 Feb Mar: 103.9 mm (4.1 in), 8 March 1961 Mar Apr: 67.3 mm (2.6 in), 6 April 1955 Apr May: 72.9 mm (2.9 in), 13 May 1957 May Jun: 71.1 mm (2.8 in), 16 June 1953 Jun Jul: 125.0 mm (4.9 in), 25 July 1959 Jul Aug: 66.5 mm (2.6 in), 9 August 1960 Aug Sep: 115.6 mm (4.6 in), 21 September 1958 Sep Oct: 48.3 mm (1.9 in), 8 October 1955 Oct Nov: 76.7 mm (3.0 in), 16 November 1957 Nov Dec: 122.4 mm (4.8 in), 29 December 1954 Dec
The wettest day on record for each calendar month at Altamont. The most was 125.0 mm (4.9 in) on 25 July 1959.
Record daily precipitation for each month at Altamont
MonthRecord daily precipitation (mm)Date
Jan98.0 mm (3.9 in)21 January 1954
Feb71.1 mm (2.8 in)1 February 1951
Mar103.9 mm (4.1 in)8 March 1961
Apr67.3 mm (2.6 in)6 April 1955
May72.9 mm (2.9 in)13 May 1957
Jun71.1 mm (2.8 in)16 June 1953
Jul125.0 mm (4.9 in)25 July 1959
Aug66.5 mm (2.6 in)9 August 1960
Sep115.6 mm (4.6 in)21 September 1958
Oct48.3 mm (1.9 in)8 October 1955
Nov76.7 mm (3.0 in)16 November 1957
Dec122.4 mm (4.8 in)29 December 1954

Latest Records

0

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

Extremes by Year

1929 to 1962
Yearly extremes at Altamont: the record and the median year
MeasureRecordYear of the recordMedian yearYears with a value
Wettest day (Rx1day)125.0 mm (4.9 in)195978.7 mm (3.1 in)17
Wettest five days (Rx5day)229.8 mm (9.0 in)1957130.6 mm (5.1 in)17
Longest dry spell (CDD)32 days195423 days17

Wettest day (Rx1day)

Wettest day (Rx1day) at Altamont by year The wettest day of the year at Altamont, 1929 to 1962. The record is 125.0 mm (4.9 in) in 1959, marked on the chart; the median year is 78.7 mm (3.1 in). 2550751001251930194019501960Record: 125.0 mm (4.9 in) in 1959
The wettest day of the year at Altamont, 1929 to 1962. The record is 125.0 mm (4.9 in) in 1959, marked on the chart; the median year is 78.7 mm (3.1 in).
Wettest day (Rx1day) at Altamont by year
YearWettest day (Rx1day)
192985.9 mm (3.4 in)
193039.6 mm (1.6 in)
193136.1 mm (1.4 in)
194988.9 mm (3.5 in)
195069.1 mm (2.7 in)
195171.1 mm (2.8 in)
195277.0 mm (3.0 in)
195371.1 mm (2.8 in)
1954122.4 mm (4.8 in)
195578.7 mm (3.1 in)
1956116.8 mm (4.6 in)
195781.8 mm (3.2 in)
1958115.6 mm (4.6 in)
1959125.0 mm (4.9 in)
196066.5 mm (2.6 in)
1961103.9 mm (4.1 in)
196248.3 mm (1.9 in)

Wettest five days (Rx5day)

Wettest five days (Rx5day) at Altamont by year The wettest five days of the year at Altamont, 1929 to 1962. The record is 229.8 mm (9.0 in) in 1957, marked on the chart; the median year is 130.6 mm (5.1 in). 501001502002501930194019501960Record: 229.8 mm (9.0 in) in 1957
The wettest five days of the year at Altamont, 1929 to 1962. The record is 229.8 mm (9.0 in) in 1957, marked on the chart; the median year is 130.6 mm (5.1 in).
Wettest five days (Rx5day) at Altamont by year
YearWettest five days (Rx5day)
1929116.9 mm (4.6 in)
193079.2 mm (3.1 in)
193157.9 mm (2.3 in)
1949161.2 mm (6.3 in)
1950136.9 mm (5.4 in)
1951130.8 mm (5.1 in)
195277.8 mm (3.1 in)
1953105.5 mm (4.2 in)
1954146.3 mm (5.8 in)
1955147.5 mm (5.8 in)
1956175.5 mm (6.9 in)
1957229.8 mm (9.0 in)
1958123.2 mm (4.9 in)
1959137.5 mm (5.4 in)
196086.6 mm (3.4 in)
1961130.6 mm (5.1 in)
196297.8 mm (3.9 in)

Longest dry spell (CDD)

Longest dry spell (CDD) at Altamont by year The longest dry spell of the year at Altamont, 1929 to 1962. The record is 32 days in 1954, marked on the chart; the median year is 23 days. 0102030401930194019501960Record: 32 days in 1954
The longest dry spell of the year at Altamont, 1929 to 1962. The record is 32 days in 1954, marked on the chart; the median year is 23 days.
Longest dry spell (CDD) at Altamont by year
YearLongest dry spell (CDD)
192923 days
193028 days
193113 days
194912 days
195016 days
195124 days
195231 days
195331 days
195432 days
195524 days
195620 days
195716 days
195830 days
195925 days
196021 days
196116 days
19628 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 Altamont standing records by year: CSV or JSON. Field meanings are on the data page.
  • Data for Altamont 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 2026-10-16 (16 October 2026). Records are computed by this site and are not official.

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