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Data as of 2025-12-31
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Built 2026-10-16 (16 October 2026)

Grassrange 13 NE Weather Records (USC00243736)

Record envelope, standing records and threshold days for Grassrange 13 NE (USC00243736), Montana, United States, with 53 years of record.

Key Facts for Grassrange 13 NE

  • Grassrange 13 NE (USC00243736) is a weather station in Montana, United States at 47.19 latitude and -108.66 longitude, 989 m (3,245 ft) above sea level.
  • The station reports from 1964 to 2016, 53 years of record.
  • 1,464 records set at Grassrange 13 NE 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, 47.19 latitude, -108.66 longitude.
  • Elevation: 989 m (3,245 ft).
  • Period of record: 1964 to 2016, 53 years.
  • Eligible elements: none yet.

Daily Record Envelope and 2026

0 days at or beyond a record
Daily record high and record low at Grassrange 13 NE, with 2026 drawn through them The band shows the record high and record low for each calendar day at Grassrange 13 NE. The lines show the 2026 daily maximum and minimum. 0 days in 2026 matched or passed a record. Temperatures are in degrees Celsius. -40-200204060 JanFebMarAprMayJunJulAugSepOctNovDec
The band shows the record high and record low for each calendar day at Grassrange 13 NE. 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 Grassrange 13 NE, with 2026 drawn through them
MonthHighest record highLowest record low2026 highest maximum2026 lowest minimum
Jan19.4 C (66.9 F)-37.8 C (-36.0 F)n/an/a
Feb18.3 C (64.9 F)-30.0 C (-22.0 F)n/an/a
Mar23.9 C (75.0 F)-30.0 C (-22.0 F)n/an/a
Apr30.6 C (87.1 F)-16.1 C (3.0 F)n/an/a
May33.3 C (91.9 F)-9.4 C (15.1 F)n/an/a
Jun38.3 C (100.9 F)-1.1 C (30.0 F)n/an/a
Jul40.6 C (105.1 F)2.2 C (36.0 F)n/an/a
Aug40.0 C (104.0 F)0.6 C (33.1 F)n/an/a
Sep35.6 C (96.1 F)-4.4 C (24.1 F)n/an/a
Oct28.9 C (84.0 F)-12.2 C (10.0 F)n/an/a
Nov22.8 C (73.0 F)-29.4 C (-20.9 F)n/an/a
Dec17.8 C (64.0 F)-37.2 C (-35.0 F)n/an/a

Which Years Hold Standing Records

1,464 standing records
Standing records at Grassrange 13 NE by the year they were set 1,464 records at Grassrange 13 NE still stand. 1966 holds the most, with 309. 01002003004001964: 551965: 3071966: 3091967: 2691968: 2611969: 263196419651966196719681969
1,464 records at Grassrange 13 NE still stand. 1966 holds the most, with 309.
Standing records at Grassrange 13 NE by the year they were set
Year setStanding records
196455
1965307
1966309
1967269
1968261
1969263

Wettest Day of Each Month

Aug: 119.9 mm (4.7 in)
Record daily precipitation for each month at Grassrange 13 NE The wettest day on record for each calendar month at Grassrange 13 NE. The most was 119.9 mm (4.7 in) on 24 August 2014. 050100150 Jan: 11.7 mm (0.5 in), 30 January 2014 Jan Feb: 10.9 mm (0.4 in), 28 February 2007 Feb Mar: 22.9 mm (0.9 in), 2 March 1966 Mar Apr: 19.1 mm (0.8 in), 26 April 1969 Apr May: 50.8 mm (2.0 in), 23 May 2008 May Jun: 48.0 mm (1.9 in), 4 June 2015 Jun Jul: 41.7 mm (1.6 in), 6 July 1969 Jul Aug: 119.9 mm (4.7 in), 24 August 2014 Aug Sep: 15.7 mm (0.6 in), 22 September 2006 Sep Oct: 40.4 mm (1.6 in), 20 October 2009 Oct Nov: 12.7 mm (0.5 in), 8 November 2012 Nov Dec: 15.7 mm (0.6 in), 19 December 2010 Dec
The wettest day on record for each calendar month at Grassrange 13 NE. The most was 119.9 mm (4.7 in) on 24 August 2014.
Record daily precipitation for each month at Grassrange 13 NE
MonthRecord daily precipitation (mm)Date
Jan11.7 mm (0.5 in)30 January 2014
Feb10.9 mm (0.4 in)28 February 2007
Mar22.9 mm (0.9 in)2 March 1966
Apr19.1 mm (0.8 in)26 April 1969
May50.8 mm (2.0 in)23 May 2008
Jun48.0 mm (1.9 in)4 June 2015
Jul41.7 mm (1.6 in)6 July 1969
Aug119.9 mm (4.7 in)24 August 2014
Sep15.7 mm (0.6 in)22 September 2006
Oct40.4 mm (1.6 in)20 October 2009
Nov12.7 mm (0.5 in)8 November 2012
Dec15.7 mm (0.6 in)19 December 2010

Period of Record Coverage

1964 to 1969
Days with data per year at Grassrange 13 NE 6 years of record at Grassrange 13 NE, 1964 to 1969. 2 years have data for under 90 percent of days and are left out of rankings: 1964, 1969. 1964: 61 of 366 days1965: 357 of 365 days1966: 364 of 365 days1967: 358 of 365 days1968: 349 of 366 days1969: 303 of 365 days1965
6 years of record at Grassrange 13 NE, 1964 to 1969. 2 years have data for under 90 percent of days and are left out of rankings: 1964, 1969.
Days with data per year at Grassrange 13 NE
YearDays with dataShare of yearComplete
19646117%No
196535798%Yes
1966364100%Yes
196735898%Yes
196834995%Yes
196930383%No

Latest Records

0

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

Extremes by Year

1964 to 2016
Yearly extremes at Grassrange 13 NE: the record and the median year
MeasureRecordYear of the recordMedian yearYears with a value
Hottest day (TXx)40.6 C (105.1 F)196638.1 C (100.5 F)6
Coldest night (TNn)-37.8 C (-36.0 F)1969-34.1 C (-29.5 F)6
Wettest day (Rx1day)119.9 mm (4.7 in)201429.2 mm (1.1 in)17
Wettest five days (Rx5day)182.9 mm (7.2 in)201468.2 mm (2.7 in)16
Longest dry spell (CDD)65 days201531 days17

Hottest day (TXx)

Hottest day (TXx) at Grassrange 13 NE by year The hottest day of the year at Grassrange 13 NE, 1964 to 2016. The record is 40.6 C (105.1 F) in 1966, marked on the chart; the median year is 38.1 C (100.5 F). 20253035404519701980199020002010Record: 40.6 C (105.1 F) in 1966
The hottest day of the year at Grassrange 13 NE, 1964 to 2016. The record is 40.6 C (105.1 F) in 1966, marked on the chart; the median year is 38.1 C (100.5 F).
Hottest day (TXx) at Grassrange 13 NE by year
YearHottest day (TXx)
196421.1 C (70.0 F)
196538.3 C (100.9 F)
196640.6 C (105.1 F)
196737.8 C (100.0 F)
196836.7 C (98.1 F)
196940.0 C (104.0 F)
2006n/a
2007n/a
2008n/a
2009n/a
2010n/a
2011n/a
2012n/a
2013n/a
2014n/a
2015n/a
2016n/a

Coldest night (TNn)

Coldest night (TNn) at Grassrange 13 NE by year The coldest night of the year at Grassrange 13 NE, 1964 to 2016. The record is -37.8 C (-36.0 F) in 1969, marked on the chart; the median year is -34.1 C (-29.5 F). -40-37.5-35-32.5-30-27.519701980199020002010Record: -37.8 C (-36.0 F) in 1969
The coldest night of the year at Grassrange 13 NE, 1964 to 2016. The record is -37.8 C (-36.0 F) in 1969, marked on the chart; the median year is -34.1 C (-29.5 F).
Coldest night (TNn) at Grassrange 13 NE by year
YearColdest night (TNn)
1964-35.0 C (-31.0 F)
1965-30.0 C (-22.0 F)
1966-29.4 C (-20.9 F)
1967-33.3 C (-27.9 F)
1968-37.2 C (-35.0 F)
1969-37.8 C (-36.0 F)
2006n/a
2007n/a
2008n/a
2009n/a
2010n/a
2011n/a
2012n/a
2013n/a
2014n/a
2015n/a
2016n/a

Wettest day (Rx1day)

Wettest day (Rx1day) at Grassrange 13 NE by year The wettest day of the year at Grassrange 13 NE, 1964 to 2016. The record is 119.9 mm (4.7 in) in 2014, marked on the chart; the median year is 29.2 mm (1.1 in). 05010015019701980199020002010Record: 119.9 mm (4.7 in) in 2014
The wettest day of the year at Grassrange 13 NE, 1964 to 2016. The record is 119.9 mm (4.7 in) in 2014, marked on the chart; the median year is 29.2 mm (1.1 in).
Wettest day (Rx1day) at Grassrange 13 NE by year
YearWettest day (Rx1day)
19644.1 mm (0.16 in)
196525.4 mm (1.0 in)
196622.9 mm (0.9 in)
196729.2 mm (1.1 in)
196834.8 mm (1.4 in)
196941.7 mm (1.6 in)
200626.4 mm (1.0 in)
200727.4 mm (1.1 in)
200850.8 mm (2.0 in)
200940.4 mm (1.6 in)
201027.4 mm (1.1 in)
201138.9 mm (1.5 in)
201222.1 mm (0.9 in)
201335.6 mm (1.4 in)
2014119.9 mm (4.7 in)
201548.0 mm (1.9 in)
201619.1 mm (0.8 in)

Wettest five days (Rx5day)

Wettest five days (Rx5day) at Grassrange 13 NE by year The wettest five days of the year at Grassrange 13 NE, 1964 to 2016. The record is 182.9 mm (7.2 in) in 2014, marked on the chart; the median year is 68.2 mm (2.7 in). 05010015020019701980199020002010Record: 182.9 mm (7.2 in) in 2014
The wettest five days of the year at Grassrange 13 NE, 1964 to 2016. The record is 182.9 mm (7.2 in) in 2014, marked on the chart; the median year is 68.2 mm (2.7 in).
Wettest five days (Rx5day) at Grassrange 13 NE by year
YearWettest five days (Rx5day)
19649.1 mm (0.36 in)
196563.2 mm (2.5 in)
196633.9 mm (1.3 in)
196737.8 mm (1.5 in)
196884.3 mm (3.3 in)
196978.7 mm (3.1 in)
200651.8 mm (2.0 in)
200773.2 mm (2.9 in)
2008137.9 mm (5.4 in)
200941.2 mm (1.6 in)
201042.4 mm (1.7 in)
201184.6 mm (3.3 in)
2012n/a
201378.8 mm (3.1 in)
2014182.9 mm (7.2 in)
201573.9 mm (2.9 in)
201631.5 mm (1.2 in)

Longest dry spell (CDD)

Longest dry spell (CDD) at Grassrange 13 NE by year The longest dry spell of the year at Grassrange 13 NE, 1964 to 2016. The record is 65 days in 2015, marked on the chart; the median year is 31 days. 02040608019701980199020002010Record: 65 days in 2015
The longest dry spell of the year at Grassrange 13 NE, 1964 to 2016. The record is 65 days in 2015, marked on the chart; the median year is 31 days.
Longest dry spell (CDD) at Grassrange 13 NE by year
YearLongest dry spell (CDD)
196418 days
196548 days
196638 days
196747 days
196844 days
196954 days
200627 days
200728 days
200829 days
200931 days
201027 days
201115 days
20122 days
201320 days
201431 days
201565 days
201637 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 Grassrange 13 NE standing records by year: CSV or JSON. Field meanings are on the data page.
  • Data for Grassrange 13 NE 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).