Built 2026-10-17 (17 October 2026)

Pocatello 2 NE Weather Records (USC00107208)

Record envelope, standing records and threshold days for Pocatello 2 NE (USC00107208), Idaho, United States, with 119 years of record.

Key Facts for Pocatello 2 NE

  • Pocatello 2 NE (USC00107208) is a weather station in Idaho, United States at 42.89 latitude and -112.41 longitude, 1,473 m (4,832 ft) above sea level.
  • The station reports from 1899 to 2017, 119 years of record.
  • 1,464 records set at Pocatello 2 NE still stand.
  • Records are tracked for tmax, tmin, prcp, snow, snwd: an element needs 30 years of data to be eligible.
  • Pocatello 2 NE tied a daily record high maximum temperature of 37.2 C (99.0 F) on 24 July 2017.

About the Station

  • Location: Idaho, United States, 42.89 latitude, -112.41 longitude.
  • Elevation: 1,473 m (4,832 ft).
  • Period of record: 1899 to 2017, 119 years.
  • Eligible elements: tmax, tmin, prcp, snow, snwd.

Daily Record Envelope and 2026

0 days at or beyond a record
Daily record high and record low at Pocatello 2 NE, with 2026 drawn through them The band shows the record high and record low for each calendar day at Pocatello 2 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 Pocatello 2 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 Pocatello 2 NE, with 2026 drawn through them
MonthHighest record highLowest record low2026 highest maximum2026 lowest minimum
Jan15.0 C (59.0 F)-31.1 C (-24.0 F)n/an/a
Feb18.9 C (66.0 F)-27.2 C (-17.0 F)n/an/a
Mar25.6 C (78.1 F)-18.3 C (-0.9 F)n/an/a
Apr30.6 C (87.1 F)-10.0 C (14.0 F)n/an/a
May36.1 C (97.0 F)-6.1 C (21.0 F)n/an/a
Jun40.0 C (104.0 F)-3.9 C (25.0 F)n/an/a
Jul41.1 C (106.0 F)2.8 C (37.0 F)n/an/a
Aug40.6 C (105.1 F)0.6 C (33.1 F)n/an/a
Sep36.7 C (98.1 F)-5.0 C (23.0 F)n/an/a
Oct32.8 C (91.0 F)-13.9 C (7.0 F)n/an/a
Nov24.4 C (75.9 F)-23.3 C (-9.9 F)n/an/a
Dec16.7 C (62.1 F)-25.0 C (-13.0 F)n/an/a

Which Years Hold Standing Records

1,464 standing records
Standing records at Pocatello 2 NE by the year they were set 1,464 records at Pocatello 2 NE still stand. 2003 holds the most, with 69. 0204060801956: 531957: 411958: 421959: 481960: 461961: 341962: 491963: 331964: 51992: 541993: 571994: 451995: 531996: 631997: 301998: 411999: 462000: 392001: 542002: 452003: 692004: 302005: 322006: 392007: 372008: 372009: 362010: 372011: 382012: 332013: 352014: 452015: 542016: 402017: 24195619601964199519992003200720112015
1,464 records at Pocatello 2 NE still stand. 2003 holds the most, with 69.
Standing records at Pocatello 2 NE by the year they were set
Year setStanding records
195653
195741
195842
195948
196046
196134
196249
196333
19645
199254
199357
199445
199553
199663
199730
199841
199946
200039
200154
200245
200369
200430
200532
200639
200737
200837
200936
201037
201138
201233
201335
201445
201554
201640
201724

All-Time Record Progression

1 new records
When Pocatello 2 NE set new all-time records 1 all-time records were set at Pocatello 2 NE between 25 January 2017 and 25 January 2017. Each dot is a new record. Record snow depth25 January 2017: Record snow depth 58.4 cm (23.0 in)
1 all-time records were set at Pocatello 2 NE between 25 January 2017 and 25 January 2017. Each dot is a new record.
When Pocatello 2 NE set new all-time records
DateKindDetail
2017-01-25Record snow depthRecord snow depth 58.4 cm (23.0 in)

Wettest Day of Each Month

Aug: 49.0 mm (1.9 in)
Record daily precipitation for each month at Pocatello 2 NE The wettest day on record for each calendar month at Pocatello 2 NE. The most was 49.0 mm (1.9 in) on 22 August 1997. 0204060 Jan: 17.8 mm (0.7 in), 8 January 2005 Jan Feb: 26.9 mm (1.1 in), 20 February 2001 Feb Mar: 29.5 mm (1.2 in), 30 March 1957 Mar Apr: 32.0 mm (1.3 in), 6 April 1957 Apr May: 26.7 mm (1.1 in), 16 May 1961 May Jun: 37.1 mm (1.5 in), 6 June 2007 Jun Jul: 35.8 mm (1.4 in), 18 July 2004 Jul Aug: 49.0 mm (1.9 in), 22 August 1997 Aug Sep: 36.3 mm (1.4 in), 12 September 1998 Sep Oct: 22.1 mm (0.9 in), 21 October 1961 Oct Nov: 24.9 mm (1.0 in), 8 November 2010 Nov Dec: 20.3 mm (0.8 in), 26 December 2003 Dec
The wettest day on record for each calendar month at Pocatello 2 NE. The most was 49.0 mm (1.9 in) on 22 August 1997.
Record daily precipitation for each month at Pocatello 2 NE
MonthRecord daily precipitation (mm)Date
Jan17.8 mm (0.7 in)8 January 2005
Feb26.9 mm (1.1 in)20 February 2001
Mar29.5 mm (1.2 in)30 March 1957
Apr32.0 mm (1.3 in)6 April 1957
May26.7 mm (1.1 in)16 May 1961
Jun37.1 mm (1.5 in)6 June 2007
Jul35.8 mm (1.4 in)18 July 2004
Aug49.0 mm (1.9 in)22 August 1997
Sep36.3 mm (1.4 in)12 September 1998
Oct22.1 mm (0.9 in)21 October 1961
Nov24.9 mm (1.0 in)8 November 2010
Dec20.3 mm (0.8 in)26 December 2003

Period of Record Coverage

1899 to 2017
Days with data per year at Pocatello 2 NE 36 years of record at Pocatello 2 NE, 1899 to 2017. 3 years have data for under 90 percent of days and are left out of rankings: 1899, 1964, 2017. 1899: 1 of 365 days1956: 334 of 366 days1957: 361 of 365 days1958: 365 of 365 days1959: 355 of 365 days1960: 359 of 366 days1961: 363 of 365 days1962: 361 of 365 days1963: 360 of 365 days1964: 31 of 366 days1992: 361 of 366 days1993: 365 of 365 days1994: 364 of 365 days1995: 365 of 365 days1996: 364 of 366 days1997: 362 of 365 days1998: 364 of 365 days1999: 364 of 365 days2000: 366 of 366 days2001: 365 of 365 days2002: 364 of 365 days2003: 365 of 365 days2004: 365 of 366 days2005: 364 of 365 days2006: 363 of 365 days2007: 332 of 365 days2008: 365 of 366 days2009: 333 of 365 days2010: 365 of 365 days2011: 365 of 365 days2012: 365 of 366 days2013: 365 of 365 days2014: 365 of 365 days2015: 365 of 365 days2016: 366 of 366 days2017: 212 of 365 days196019952000200520102015
36 years of record at Pocatello 2 NE, 1899 to 2017. 3 years have data for under 90 percent of days and are left out of rankings: 1899, 1964, 2017.
Days with data per year at Pocatello 2 NE
YearDays with dataShare of yearComplete
189910%No
195633491%Yes
195736199%Yes
1958365100%Yes
195935597%Yes
196035998%Yes
196136399%Yes
196236199%Yes
196336099%Yes
1964318%No
199236199%Yes
1993365100%Yes
1994364100%Yes
1995365100%Yes
199636499%Yes
199736299%Yes
1998364100%Yes
1999364100%Yes
2000366100%Yes
2001365100%Yes
2002364100%Yes
2003365100%Yes
2004365100%Yes
2005364100%Yes
200636399%Yes
200733291%Yes
2008365100%Yes
200933391%Yes
2010365100%Yes
2011365100%Yes
2012365100%Yes
2013365100%Yes
2014365100%Yes
2015365100%Yes
2016366100%Yes
201721258%No

Latest Records

20
Latest records at Pocatello 2 NE
DateStationRecordValueBeat old record byOld record stoodSignificance
24 July 2017Pocatello 2 NE, USdaily high max (Tie)37.2 C (99.0 F)tie15 years3 of 100 (Routine)
19 July 2017Pocatello 2 NE, USdaily high max (Tie)36.7 C (98.1 F)tie56 years6 of 100 (Routine)
15 July 2017Pocatello 2 NE, USdaily high min (Tie)20.0 C (68.0 F)tie20 years4 of 100 (Routine)
10 July 2017Pocatello 2 NE, USdaily high min18.9 C (66.0 F)1.1 C (2.0 F)11 years16 of 100 (Routine)
9 July 2017Pocatello 2 NE, USdaily high min21.1 C (70.0 F)0.5 C (0.9 F)20 years17 of 100 (Routine)
9 July 2017Pocatello 2 NE, USdaily high max (Tie)38.3 C (100.9 F)tie60 years7 of 100 (Routine)
8 July 2017Pocatello 2 NE, USdaily high max38.9 C (102.0 F)2.8 C (5.0 F)12 years20 of 100 (Routine)
5 July 2017Pocatello 2 NE, USdaily high max39.4 C (102.9 F)1.6 C (2.9 F)10 years17 of 100 (Routine)
13 June 2017Pocatello 2 NE, USdaily rain13.7 mm (0.5 in)5.1 mm (0.20 in)16 years20 of 100 (Routine)
7 June 2017Pocatello 2 NE, USdaily high min17.2 C (63.0 F)1.6 C (2.9 F)11 years17 of 100 (Routine)
7 June 2017Pocatello 2 NE, USdaily high max34.4 C (93.9 F)1.1 C (2.0 F)16 years16 of 100 (Routine)
31 May 2017Pocatello 2 NE, USdaily high max (Tie)32.2 C (90.0 F)tie2 years2 of 100 (Routine)
27 May 2017Pocatello 2 NE, USdaily low min (Tie)1.7 C (35.1 F)tie19 years3 of 100 (Routine)
26 May 2017Pocatello 2 NE, USdaily low max8.9 C (48.0 F)1.7 C (3.1 F)20 years18 of 100 (Routine)
24 May 2017Pocatello 2 NE, USdaily high min13.9 C (57.0 F)1.1 C (2.0 F)18 years17 of 100 (Routine)
18 May 2017Pocatello 2 NE, USdaily low min-4.4 C (24.1 F)3.8 C (6.8 F)14 years23 of 100 (Routine)
17 May 2017Pocatello 2 NE, USdaily snowfall1.3 cm (0.5 in)1.3 cm (0.5 in)60 years20 of 100 (Routine)
17 May 2017Pocatello 2 NE, USdaily low max6.7 C (44.1 F)5.5 C (9.9 F)19 years24 of 100 (Routine)
17 May 2017Pocatello 2 NE, USdaily low min-2.2 C (28.0 F)1.6 C (2.9 F)6 years14 of 100 (Routine)
27 April 2017Pocatello 2 NE, USdaily snowfall5.1 cm (2.0 in)1.3 cm (0.5 in)20 years19 of 100 (Routine)

Climate Trend

30 complete years, 1957 to 2016
Annual mean temperature at Pocatello 2 NE as warming stripes, 1957 to 2016 One stripe for each of 30 complete years at Pocatello 2 NE, 1957 to 2016. 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 1993, at 7.0 C (44.7 F), and the warmest was 2003, at 10.8 C (51.5 F). The strongest colour marks a difference of 2.4 C (4.3 F). 1957: 9.1 C, -0.3 C from the station mean1958: 10.2 C, +0.8 C from the station mean1959: 9.3 C, -0.1 C from the station mean1960: 9.2 C, -0.2 C from the station mean1961: 9.5 C, +0.2 C from the station mean1962: 9.0 C, -0.4 C from the station mean1963: 8.5 C, -0.9 C from the station mean1992: 10.1 C, +0.7 C from the station mean1993: 7.0 C, -2.3 C from the station mean1994: 9.8 C, +0.4 C from the station mean1995: 9.2 C, -0.1 C from the station mean1996: 9.1 C, -0.3 C from the station mean1997: 9.0 C, -0.4 C from the station mean1998: 9.6 C, +0.2 C from the station mean1999: 9.8 C, +0.4 C from the station mean2000: 9.7 C, +0.4 C from the station mean2001: 10.0 C, +0.6 C from the station mean2002: 9.0 C, -0.4 C from the station mean2003: 10.8 C, +1.5 C from the station mean2004: 9.6 C, +0.2 C from the station mean2005: 8.8 C, -0.5 C from the station mean2006: 9.3 C, -0.1 C from the station mean2008: 8.3 C, -1.0 C from the station mean2010: 8.8 C, -0.5 C from the station mean2011: 8.3 C, -1.1 C from the station mean2012: 10.5 C, +1.1 C from the station mean2013: 8.9 C, -0.5 C from the station mean2014: 10.0 C, +0.6 C from the station mean2015: 10.7 C, +1.4 C from the station mean2016: 10.1 C, +0.7 C from the station mean195719651970197519801985199019952000200520102015
One stripe for each of 30 complete years at Pocatello 2 NE, 1957 to 2016. 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 1993, at 7.0 C (44.7 F), and the warmest was 2003, at 10.8 C (51.5 F). The strongest colour marks a difference of 2.4 C (4.3 F).
Annual mean temperature at Pocatello 2 NE as warming stripes, 1957 to 2016
YearAnnual mean temperatureDifference from the station mean
19579.1 C-0.27 C
195810.2 C+0.81 C
19599.3 C-0.09 C
19609.2 C-0.19 C
19619.5 C+0.17 C
19629.0 C-0.41 C
19638.5 C-0.91 C
199210.1 C+0.69 C
19937.0 C-2.34 C
19949.8 C+0.43 C
19959.2 C-0.14 C
19969.1 C-0.28 C
19979.0 C-0.39 C
19989.6 C+0.25 C
19999.8 C+0.40 C
20009.7 C+0.37 C
200110.0 C+0.63 C
20029.0 C-0.38 C
200310.8 C+1.47 C
20049.6 C+0.25 C
20058.8 C-0.54 C
20069.3 C-0.11 C
20088.3 C-1.03 C
20108.8 C-0.53 C
20118.3 C-1.07 C
201210.5 C+1.11 C
20138.9 C-0.50 C
201410.0 C+0.61 C
201510.7 C+1.37 C
201610.1 C+0.71 C

The fitted trend in annual mean temperature here over 1957 to 2016 is 0.1 C (-0.1 to 0.2) per decade. The interval includes zero, so the trend is not clearly different from zero. In Fahrenheit: 0.1 F (-0.2 to 0.4) per decade. The slope is a straight line fitted to 30 complete years; the brackets give its 95 percent interval.

Fitted temperature trends per decade at Pocatello 2 NE
MeasurePer decade (C)Per decade (F)PeriodComplete yearsReading
Annual mean temperature0.1 C (-0.1 to 0.2) per decade0.1 F (-0.2 to 0.4) per decade1957 to 201630Not clearly different from zero
Mean daily maximum-0.1 C (-0.2 to 0.1) per decade-0.1 F (-0.4 to 0.2) per decade1957 to 201630Not clearly different from zero
Mean daily minimum0.17 C (0.02 to 0.31) per decade0.30 F (0.04 to 0.57) per decade1957 to 201630Rise

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

1899 to 2017
Yearly extremes at Pocatello 2 NE: the record and the median year
MeasureRecordYear of the recordMedian yearYears with a value
Hottest day (TXx)41.1 C (106.0 F)200237.8 C (100.0 F)36
Coldest night (TNn)-31.1 C (-24.0 F)1962-21.4 C (-6.5 F)36
Wettest day (Rx1day)49.0 mm (1.9 in)199723.2 mm (0.9 in)36
Wettest five days (Rx5day)60.9 mm (2.4 in)200937.8 mm (1.5 in)35
Longest dry spell (CDD)54 days200136 days36

Hottest day (TXx)

Hottest day (TXx) at Pocatello 2 NE by year The hottest day of the year at Pocatello 2 NE, 1899 to 2017. The record is 41.1 C (106.0 F) in 2002, marked on the chart; the median year is 37.8 C (100.0 F). 01020304050190019201940196019802000Record: 41.1 C (106.0 F) in 2002
The hottest day of the year at Pocatello 2 NE, 1899 to 2017. The record is 41.1 C (106.0 F) in 2002, marked on the chart; the median year is 37.8 C (100.0 F).
Hottest day (TXx) at Pocatello 2 NE by year
YearHottest day (TXx)
189918.9 C (66.0 F)
195638.3 C (100.9 F)
195736.1 C (97.0 F)
195837.8 C (100.0 F)
195938.3 C (100.9 F)
196037.8 C (100.0 F)
196138.3 C (100.9 F)
196237.2 C (99.0 F)
196336.1 C (97.0 F)
19646.1 C (43.0 F)
199237.2 C (99.0 F)
199332.2 C (90.0 F)
199437.8 C (100.0 F)
199536.7 C (98.1 F)
199637.8 C (100.0 F)
199736.7 C (98.1 F)
199840.6 C (105.1 F)
199937.2 C (99.0 F)
200040.6 C (105.1 F)
200140.6 C (105.1 F)
200241.1 C (106.0 F)
200340.6 C (105.1 F)
200437.2 C (99.0 F)
200539.4 C (102.9 F)
200640.0 C (104.0 F)
200740.0 C (104.0 F)
200837.2 C (99.0 F)
200937.8 C (100.0 F)
201037.2 C (99.0 F)
201137.2 C (99.0 F)
201238.3 C (100.9 F)
201339.4 C (102.9 F)
201437.8 C (100.0 F)
201540.0 C (104.0 F)
201637.8 C (100.0 F)
201739.4 C (102.9 F)

Coldest night (TNn)

Coldest night (TNn) at Pocatello 2 NE by year The coldest night of the year at Pocatello 2 NE, 1899 to 2017. The record is -31.1 C (-24.0 F) in 1962, marked on the chart; the median year is -21.4 C (-6.5 F). -40-30-20-10010190019201940196019802000Record: -31.1 C (-24.0 F) in 1962
The coldest night of the year at Pocatello 2 NE, 1899 to 2017. The record is -31.1 C (-24.0 F) in 1962, marked on the chart; the median year is -21.4 C (-6.5 F).
Coldest night (TNn) at Pocatello 2 NE by year
YearColdest night (TNn)
18991.7 C (35.1 F)
1956-27.2 C (-17.0 F)
1957-23.9 C (-11.0 F)
1958-18.3 C (-0.9 F)
1959-22.8 C (-9.0 F)
1960-25.6 C (-14.1 F)
1961-18.9 C (-2.0 F)
1962-31.1 C (-24.0 F)
1963-29.4 C (-20.9 F)
1964-23.9 C (-11.0 F)
1992-21.1 C (-6.0 F)
1993-23.3 C (-9.9 F)
1994-17.8 C (0.0 F)
1995-16.7 C (1.9 F)
1996-25.0 C (-13.0 F)
1997-20.0 C (-4.0 F)
1998-25.0 C (-13.0 F)
1999-16.7 C (1.9 F)
2000-15.6 C (3.9 F)
2001-19.4 C (-2.9 F)
2002-20.0 C (-4.0 F)
2003-18.3 C (-0.9 F)
2004-18.3 C (-0.9 F)
2005-22.8 C (-9.0 F)
2006-21.1 C (-6.0 F)
2007-21.7 C (-7.1 F)
2008-22.2 C (-8.0 F)
2009-22.8 C (-9.0 F)
2010-20.6 C (-5.1 F)
2011-20.6 C (-5.1 F)
2012-14.4 C (6.1 F)
2013-25.0 C (-13.0 F)
2014-22.8 C (-9.0 F)
2015-22.2 C (-8.0 F)
2016-20.6 C (-5.1 F)
2017-26.7 C (-16.1 F)

Wettest day (Rx1day)

Wettest day (Rx1day) at Pocatello 2 NE by year The wettest day of the year at Pocatello 2 NE, 1899 to 2017. The record is 49.0 mm (1.9 in) in 1997, marked on the chart; the median year is 23.2 mm (0.9 in). 0204060190019201940196019802000Record: 49.0 mm (1.9 in) in 1997
The wettest day of the year at Pocatello 2 NE, 1899 to 2017. The record is 49.0 mm (1.9 in) in 1997, marked on the chart; the median year is 23.2 mm (0.9 in).
Wettest day (Rx1day) at Pocatello 2 NE by year
YearWettest day (Rx1day)
18990.0 mm (0.00 in)
195617.3 mm (0.7 in)
195732.0 mm (1.3 in)
195817.8 mm (0.7 in)
195912.7 mm (0.5 in)
196018.5 mm (0.7 in)
196126.7 mm (1.1 in)
196216.8 mm (0.7 in)
196323.4 mm (0.9 in)
19644.6 mm (0.18 in)
199218.3 mm (0.7 in)
199322.9 mm (0.9 in)
199417.8 mm (0.7 in)
199524.6 mm (1.0 in)
199626.7 mm (1.1 in)
199749.0 mm (1.9 in)
199836.3 mm (1.4 in)
199920.8 mm (0.8 in)
200013.7 mm (0.5 in)
200126.9 mm (1.1 in)
200224.6 mm (1.0 in)
200320.8 mm (0.8 in)
200435.8 mm (1.4 in)
200518.3 mm (0.7 in)
200625.1 mm (1.0 in)
200737.1 mm (1.5 in)
200821.8 mm (0.9 in)
200936.3 mm (1.4 in)
201024.9 mm (1.0 in)
201125.9 mm (1.0 in)
201217.8 mm (0.7 in)
201335.3 mm (1.4 in)
201430.0 mm (1.2 in)
201518.8 mm (0.7 in)
201627.4 mm (1.1 in)
201722.6 mm (0.9 in)

Wettest five days (Rx5day)

Wettest five days (Rx5day) at Pocatello 2 NE by year The wettest five days of the year at Pocatello 2 NE, 1899 to 2017. The record is 60.9 mm (2.4 in) in 2009, marked on the chart; the median year is 37.8 mm (1.5 in). 020406080190019201940196019802000Record: 60.9 mm (2.4 in) in 2009
The wettest five days of the year at Pocatello 2 NE, 1899 to 2017. The record is 60.9 mm (2.4 in) in 2009, marked on the chart; the median year is 37.8 mm (1.5 in).
Wettest five days (Rx5day) at Pocatello 2 NE by year
YearWettest five days (Rx5day)
1899n/a
195637.3 mm (1.5 in)
195752.3 mm (2.1 in)
195835.1 mm (1.4 in)
195927.9 mm (1.1 in)
196021.0 mm (0.8 in)
196136.2 mm (1.4 in)
196231.1 mm (1.2 in)
196339.3 mm (1.5 in)
19647.6 mm (0.30 in)
199228.2 mm (1.1 in)
199360.1 mm (2.4 in)
199430.3 mm (1.2 in)
199539.1 mm (1.5 in)
199640.4 mm (1.6 in)
199754.6 mm (2.1 in)
199858.3 mm (2.3 in)
199937.4 mm (1.5 in)
200026.6 mm (1.0 in)
200131.4 mm (1.2 in)
200232.4 mm (1.3 in)
200337.3 mm (1.5 in)
200444.9 mm (1.8 in)
200529.5 mm (1.2 in)
200645.4 mm (1.8 in)
200754.4 mm (2.1 in)
200837.8 mm (1.5 in)
200960.9 mm (2.4 in)
201026.5 mm (1.0 in)
201140.8 mm (1.6 in)
201229.5 mm (1.2 in)
201360.4 mm (2.4 in)
201443.0 mm (1.7 in)
201544.5 mm (1.8 in)
201647.5 mm (1.9 in)
201740.1 mm (1.6 in)

Longest dry spell (CDD)

Longest dry spell (CDD) at Pocatello 2 NE by year The longest dry spell of the year at Pocatello 2 NE, 1899 to 2017. The record is 54 days in 2001, marked on the chart; the median year is 36 days. 0204060190019201940196019802000Record: 54 days in 2001
The longest dry spell of the year at Pocatello 2 NE, 1899 to 2017. The record is 54 days in 2001, marked on the chart; the median year is 36 days.
Longest dry spell (CDD) at Pocatello 2 NE by year
YearLongest dry spell (CDD)
18991 day
195623 days
195718 days
195844 days
195953 days
196041 days
196131 days
196234 days
196345 days
19647 days
199241 days
199337 days
199438 days
199549 days
199643 days
199723 days
199831 days
199953 days
200033 days
200154 days
200235 days
200342 days
200421 days
200525 days
200625 days
200736 days
200841 days
200934 days
201027 days
201124 days
201245 days
201326 days
201440 days
201533 days
201652 days
201739 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

30 years with a frost

Across 30 years with a frost, the median last spring frost at Pocatello 2 NE falls on 13 May and the median first autumn frost on 28 September, which leaves a median of 133 days between them.

Fitted over all years, the growing season changes by +0.2 days per decade at this station.

Frost dates and growing season at Pocatello 2 NE
MeasureMedian, all yearsEarliest periodRecent period (1957 to 2016)Recent against earliestFitted trend
Last spring frost13 Mayn/a13 Mayn/a+1.6 days per decade
First autumn frost28 Septembern/a28 Septembern/a+1.8 days per decade
Growing days133 daysn/a133 daysn/a+0.2 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.

Rainfall Return Levels

33 years, 1956 to 2016

A day with at least 23.4 mm (0.9 in) of rain is expected about once in 2 years. A day with at least 51.9 mm (2.0 in) of rain is expected about once in 100 years.

Rainfall return levels at Pocatello 2 NE: the daily rain expected about once in a given number of years
Expected about once inA day with at leastNote
2 years23.4 mm (0.9 in)
5 years30.7 mm (1.2 in)
10 years35.7 mm (1.4 in)
25 years42.1 mm (1.7 in)
50 years46.9 mm (1.8 in)Longer than the 33 years of record
100 years51.9 mm (2.0 in)Longer than the 33 years of record

The levels come from a generalised extreme value (GEV) distribution fitted by L-moments to the wettest-day total of each year, 33 years of values from 1956 to 2016.

A return level is an estimate. It is least reliable for the long periods, 50 and 100 years, and for any period longer than the record behind the fit, where the fit has to reach past the largest day actually observed. It is not a forecast.

The largest wettest-day totals in the fit: 49.0 mm (1.9 in) in 1997; 37.1 mm (1.5 in) in 2007; 36.3 mm (1.4 in) in 1998.

Download the Data

  • Data for Pocatello 2 NE standing records by year: CSV or JSON. Field meanings are on the data page.
  • Data for Pocatello 2 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 2026-10-15 (15 October 2026). Records are computed by this site and are not official.

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