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Data as of 2025-12-31
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Built 2026-10-15 (15 October 2026)

Lothair Weather Records (USC00245211)

Record envelope, standing records and threshold days for Lothair (USC00245211), Montana, United States, with 31 years of record.

Key Facts for Lothair

  • Lothair (USC00245211) is a weather station in Montana, United States at 48.48 latitude and -111.22 longitude, 1,010 m (3,314 ft) above sea level.
  • The station reports from 1912 to 1942, 31 years of record.
  • 1,464 records set at Lothair still stand.
  • Records are tracked for no element yet: an element needs 30 years of data to be eligible.

About the Station

  • Location: Montana, United States, 48.48 latitude, -111.22 longitude.
  • Elevation: 1,010 m (3,314 ft).
  • Period of record: 1912 to 1942, 31 years.
  • Eligible elements: none yet.

Daily Record Envelope and 2026

0 days at or beyond a record
Daily record high and record low at Lothair, with 2026 drawn through them The band shows the record high and record low for each calendar day at Lothair. The lines show the 2026 daily maximum and minimum. 0 days in 2026 matched or passed a record. Temperatures are in degrees Celsius. -40-2002040 JanFebMarAprMayJunJulAugSepOctNovDec
The band shows the record high and record low for each calendar day at Lothair. 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 Lothair, with 2026 drawn through them
MonthHighest record highLowest record low2026 highest maximum2026 lowest minimum
Jan16.7 C (62.1 F)-38.9 C (-38.0 F)n/an/a
Feb15.6 C (60.1 F)-40.0 C (-40.0 F)n/an/a
Mar23.9 C (75.0 F)-33.3 C (-27.9 F)n/an/a
Apr32.8 C (91.0 F)-23.3 C (-9.9 F)n/an/a
May32.2 C (90.0 F)-11.7 C (10.9 F)n/an/a
Jun39.4 C (102.9 F)-3.3 C (26.1 F)n/an/a
Jul38.9 C (102.0 F)1.7 C (35.1 F)n/an/a
Aug38.3 C (100.9 F)-1.1 C (30.0 F)n/an/a
Sep32.8 C (91.0 F)-6.7 C (19.9 F)n/an/a
Oct26.7 C (80.1 F)-22.2 C (-8.0 F)n/an/a
Nov20.6 C (69.1 F)-28.9 C (-20.0 F)n/an/a
Dec20.6 C (69.1 F)-32.2 C (-26.0 F)n/an/a

Which Years Hold Standing Records

1,464 standing records
Standing records at Lothair by the year they were set 1,464 records at Lothair still stand. 1939 holds the most, with 209. 01002003001912: 1941913: 1701914: 1941915: 1051938: 1301939: 2091940: 1831941: 1361942: 143191219131914191519381939194019411942
1,464 records at Lothair still stand. 1939 holds the most, with 209.
Standing records at Lothair by the year they were set
Year setStanding records
1912194
1913170
1914194
1915105
1938130
1939209
1940183
1941136
1942143

Wettest Day of Each Month

Jul: 57.2 mm (2.3 in)
Record daily precipitation for each month at Lothair The wettest day on record for each calendar month at Lothair. The most was 57.2 mm (2.3 in) on 17 July 1915. 0204060 Jan: 19.1 mm (0.8 in), 31 January 1912 Jan Feb: 12.7 mm (0.5 in), 21 February 1914 Feb Mar: 18.3 mm (0.7 in), 31 March 1935 Mar Apr: 20.8 mm (0.8 in), 22 April 1932 Apr May: 30.5 mm (1.2 in), 20 May 1927 May Jun: 50.0 mm (2.0 in), 12 June 1937 Jun Jul: 57.2 mm (2.3 in), 17 July 1915 Jul Aug: 38.1 mm (1.5 in), 21 August 1933 Aug Sep: 36.3 mm (1.4 in), 19 September 1925 Sep Oct: 16.8 mm (0.7 in), 27 October 1929 Oct Nov: 15.7 mm (0.6 in), 12 November 1930 Nov Dec: 23.1 mm (0.9 in), 10 December 1933 Dec
The wettest day on record for each calendar month at Lothair. The most was 57.2 mm (2.3 in) on 17 July 1915.
Record daily precipitation for each month at Lothair
MonthRecord daily precipitation (mm)Date
Jan19.1 mm (0.8 in)31 January 1912
Feb12.7 mm (0.5 in)21 February 1914
Mar18.3 mm (0.7 in)31 March 1935
Apr20.8 mm (0.8 in)22 April 1932
May30.5 mm (1.2 in)20 May 1927
Jun50.0 mm (2.0 in)12 June 1937
Jul57.2 mm (2.3 in)17 July 1915
Aug38.1 mm (1.5 in)21 August 1933
Sep36.3 mm (1.4 in)19 September 1925
Oct16.8 mm (0.7 in)27 October 1929
Nov15.7 mm (0.6 in)12 November 1930
Dec23.1 mm (0.9 in)10 December 1933

Period of Record Coverage

1912 to 1942
Days with data per year at Lothair 9 years of record at Lothair, 1912 to 1942. 3 years have data for under 90 percent of days and are left out of rankings: 1915, 1938, 1942. 1912: 365 of 366 days1913: 362 of 365 days1914: 364 of 365 days1915: 287 of 365 days1938: 306 of 365 days1939: 365 of 365 days1940: 366 of 366 days1941: 364 of 365 days1942: 231 of 365 days19151940
9 years of record at Lothair, 1912 to 1942. 3 years have data for under 90 percent of days and are left out of rankings: 1915, 1938, 1942.
Days with data per year at Lothair
YearDays with dataShare of yearComplete
1912365100%Yes
191336299%Yes
1914364100%Yes
191528779%No
193830684%No
1939365100%Yes
1940366100%Yes
1941364100%Yes
194223163%No

Latest Records

0

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

Extremes by Year

1912 to 1942
Yearly extremes at Lothair: the record and the median year
MeasureRecordYear of the recordMedian yearYears with a value
Hottest day (TXx)39.4 C (102.9 F)194136.7 C (98.1 F)9
Coldest night (TNn)-40.0 C (-40.0 F)1914-33.9 C (-29.0 F)9
Wettest day (Rx1day)57.2 mm (2.3 in)191528.8 mm (1.1 in)24
Wettest five days (Rx5day)89.5 mm (3.5 in)192745.2 mm (1.8 in)24
Longest dry spell (CDD)74 days192638 days24

Hottest day (TXx)

Hottest day (TXx) at Lothair by year The hottest day of the year at Lothair, 1912 to 1942. The record is 39.4 C (102.9 F) in 1941, marked on the chart; the median year is 36.7 C (98.1 F). 34363840191519201925193019351940Record: 39.4 C (102.9 F) in 1941
The hottest day of the year at Lothair, 1912 to 1942. The record is 39.4 C (102.9 F) in 1941, marked on the chart; the median year is 36.7 C (98.1 F).
Hottest day (TXx) at Lothair by year
YearHottest day (TXx)
191236.7 C (98.1 F)
191335.6 C (96.1 F)
191437.8 C (100.0 F)
191534.4 C (93.9 F)
1923n/a
1924n/a
1925n/a
1926n/a
1927n/a
1928n/a
1929n/a
1930n/a
1931n/a
1932n/a
1933n/a
1934n/a
1935n/a
1936n/a
1937n/a
193835.6 C (96.1 F)
193938.9 C (102.0 F)
194038.3 C (100.9 F)
194139.4 C (102.9 F)
194235.0 C (95.0 F)

Coldest night (TNn)

Coldest night (TNn) at Lothair by year The coldest night of the year at Lothair, 1912 to 1942. The record is -40.0 C (-40.0 F) in 1914, marked on the chart; the median year is -33.9 C (-29.0 F). -40-35-30-25191519201925193019351940Record: -40.0 C (-40.0 F) in 1914
The coldest night of the year at Lothair, 1912 to 1942. The record is -40.0 C (-40.0 F) in 1914, marked on the chart; the median year is -33.9 C (-29.0 F).
Coldest night (TNn) at Lothair by year
YearColdest night (TNn)
1912-34.4 C (-29.9 F)
1913-38.9 C (-38.0 F)
1914-40.0 C (-40.0 F)
1915-33.3 C (-27.9 F)
1923n/a
1924n/a
1925n/a
1926n/a
1927n/a
1928n/a
1929n/a
1930n/a
1931n/a
1932n/a
1933n/a
1934n/a
1935n/a
1936n/a
1937n/a
1938-28.3 C (-18.9 F)
1939-40.0 C (-40.0 F)
1940-32.2 C (-26.0 F)
1941-27.8 C (-18.0 F)
1942-33.9 C (-29.0 F)

Wettest day (Rx1day)

Wettest day (Rx1day) at Lothair by year The wettest day of the year at Lothair, 1912 to 1942. The record is 57.2 mm (2.3 in) in 1915, marked on the chart; the median year is 28.8 mm (1.1 in). 0204060191519201925193019351940Record: 57.2 mm (2.3 in) in 1915
The wettest day of the year at Lothair, 1912 to 1942. The record is 57.2 mm (2.3 in) in 1915, marked on the chart; the median year is 28.8 mm (1.1 in).
Wettest day (Rx1day) at Lothair by year
YearWettest day (Rx1day)
191230.5 mm (1.2 in)
191325.4 mm (1.0 in)
191429.2 mm (1.1 in)
191557.2 mm (2.3 in)
192314.0 mm (0.6 in)
192432.8 mm (1.3 in)
192536.3 mm (1.4 in)
192624.9 mm (1.0 in)
192730.5 mm (1.2 in)
192835.8 mm (1.4 in)
192930.2 mm (1.2 in)
193025.9 mm (1.0 in)
193135.8 mm (1.4 in)
193220.8 mm (0.8 in)
193338.1 mm (1.5 in)
193426.7 mm (1.1 in)
193554.4 mm (2.1 in)
193628.4 mm (1.1 in)
193750.0 mm (2.0 in)
193825.7 mm (1.0 in)
193922.1 mm (0.9 in)
194017.3 mm (0.7 in)
194119.6 mm (0.8 in)
194219.8 mm (0.8 in)

Wettest five days (Rx5day)

Wettest five days (Rx5day) at Lothair by year The wettest five days of the year at Lothair, 1912 to 1942. The record is 89.5 mm (3.5 in) in 1927, marked on the chart; the median year is 45.2 mm (1.8 in). 20406080100191519201925193019351940Record: 89.5 mm (3.5 in) in 1927
The wettest five days of the year at Lothair, 1912 to 1942. The record is 89.5 mm (3.5 in) in 1927, marked on the chart; the median year is 45.2 mm (1.8 in).
Wettest five days (Rx5day) at Lothair by year
YearWettest five days (Rx5day)
191231.8 mm (1.3 in)
191350.8 mm (2.0 in)
191436.8 mm (1.4 in)
191561.0 mm (2.4 in)
192321.4 mm (0.8 in)
192448.5 mm (1.9 in)
192548.2 mm (1.9 in)
192638.2 mm (1.5 in)
192789.5 mm (3.5 in)
192835.8 mm (1.4 in)
192942.1 mm (1.7 in)
193030.5 mm (1.2 in)
193156.9 mm (2.2 in)
193233.0 mm (1.3 in)
193359.4 mm (2.3 in)
193449.3 mm (1.9 in)
193560.0 mm (2.4 in)
193628.4 mm (1.1 in)
193751.6 mm (2.0 in)
193838.9 mm (1.5 in)
193929.0 mm (1.1 in)
194034.4 mm (1.4 in)
194148.8 mm (1.9 in)
194257.4 mm (2.3 in)

Longest dry spell (CDD)

Longest dry spell (CDD) at Lothair by year The longest dry spell of the year at Lothair, 1912 to 1942. The record is 74 days in 1926, marked on the chart; the median year is 38 days. 20406080191519201925193019351940Record: 74 days in 1926
The longest dry spell of the year at Lothair, 1912 to 1942. The record is 74 days in 1926, marked on the chart; the median year is 38 days.
Longest dry spell (CDD) at Lothair by year
YearLongest dry spell (CDD)
191267 days
191341 days
191434 days
191529 days
192334 days
192433 days
192553 days
192674 days
192729 days
192845 days
192934 days
193034 days
193162 days
193231 days
193337 days
193440 days
193543 days
193635 days
193739 days
193846 days
193938 days
194032 days
194138 days
194269 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 Lothair standing records by year: CSV or JSON. Field meanings are on the data page.
  • Data for Lothair 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 . Last revised (2025-12-31).