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Built 2026-10-16 (16 October 2026)

Powder Rvr (School) Weather Records (USC00487375)

Record envelope, standing records and threshold days for Powder Rvr (School) (USC00487375), Wyoming, United States, with 79 years of record.

Key Facts for Powder Rvr (School)

  • Powder Rvr (School) (USC00487375) is a weather station in Wyoming, United States at 43.04 latitude and -106.99 longitude, 1,744 m (5,722 ft) above sea level.
  • The station reports from 1948 to 2026, 79 years of record.
  • 1,464 records set at Powder Rvr (School) still stand.
  • Records are tracked for no element yet: an element needs 30 years of data to be eligible.

About the Station

  • Location: Wyoming, United States, 43.04 latitude, -106.99 longitude.
  • Elevation: 1,744 m (5,722 ft).
  • Period of record: 1948 to 2026, 79 years.
  • Eligible elements: none yet.

Daily Record Envelope and 2026

0 days at or beyond a record
Daily record high and record low at Powder Rvr (School), with 2026 drawn through them The band shows the record high and record low for each calendar day at Powder Rvr (School). 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 Powder Rvr (School). 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 Powder Rvr (School), with 2026 drawn through them
MonthHighest record highLowest record low2026 highest maximum2026 lowest minimum
Jan11.1 C (52.0 F)-37.2 C (-35.0 F)n/an/a
Feb15.0 C (59.0 F)-35.6 C (-32.1 F)n/an/a
Mar23.3 C (73.9 F)-29.4 C (-20.9 F)n/an/a
Apr26.7 C (80.1 F)-20.6 C (-5.1 F)n/an/a
May30.6 C (87.1 F)-8.3 C (17.1 F)n/an/a
Jun37.8 C (100.0 F)-2.2 C (28.0 F)n/an/a
Jul38.3 C (100.9 F)0.6 C (33.1 F)n/an/a
Aug38.3 C (100.9 F)-0.6 C (30.9 F)n/an/a
Sep35.6 C (96.1 F)-6.7 C (19.9 F)n/an/a
Oct30.0 C (86.0 F)-24.4 C (-11.9 F)n/an/a
Nov22.2 C (72.0 F)-33.3 C (-27.9 F)n/an/a
Dec17.8 C (64.0 F)-40.0 C (-40.0 F)n/an/a

Which Years Hold Standing Records

1,464 standing records
Standing records at Powder Rvr (School) by the year they were set 1,464 records at Powder Rvr (School) still stand. 2012 holds the most, with 127. 0501001501948: 331949: 292010: 782011: 942012: 1272013: 1202014: 1072015: 1152016: 1162017: 1072018: 812019: 862020: 832021: 1082022: 1022023: 7819482010201220142016201820202022
1,464 records at Powder Rvr (School) still stand. 2012 holds the most, with 127.
Standing records at Powder Rvr (School) by the year they were set
Year setStanding records
194833
194929
201078
201194
2012127
2013120
2014107
2015115
2016116
2017107
201881
201986
202083
2021108
2022102
202378

Wettest Day of Each Month

Apr: 51.6 mm (2.0 in)
Record daily precipitation for each month at Powder Rvr (School) The wettest day on record for each calendar month at Powder Rvr (School). The most was 51.6 mm (2.0 in) on 15 April 2023. 0204060 Jan: 11.9 mm (0.5 in), 11 January 2023 Jan Feb: 8.1 mm (0.32 in), 4 February 2015 Feb Mar: 30.5 mm (1.2 in), 30 March 2016 Mar Apr: 51.6 mm (2.0 in), 15 April 2023 Apr May: 40.9 mm (1.6 in), 24 May 2011 May Jun: 38.1 mm (1.5 in), 16 June 2023 Jun Jul: 28.4 mm (1.1 in), 1 July 2013 Jul Aug: 26.9 mm (1.1 in), 12 August 2022 Aug Sep: 23.4 mm (0.9 in), 17 September 2025 Sep Oct: 48.3 mm (1.9 in), 4 October 2013 Oct Nov: 9.7 mm (0.38 in), 17 November 1948 Nov Dec: 17.3 mm (0.7 in), 15 December 2014 Dec
The wettest day on record for each calendar month at Powder Rvr (School). The most was 51.6 mm (2.0 in) on 15 April 2023.
Record daily precipitation for each month at Powder Rvr (School)
MonthRecord daily precipitation (mm)Date
Jan11.9 mm (0.5 in)11 January 2023
Feb8.1 mm (0.32 in)4 February 2015
Mar30.5 mm (1.2 in)30 March 2016
Apr51.6 mm (2.0 in)15 April 2023
May40.9 mm (1.6 in)24 May 2011
Jun38.1 mm (1.5 in)16 June 2023
Jul28.4 mm (1.1 in)1 July 2013
Aug26.9 mm (1.1 in)12 August 2022
Sep23.4 mm (0.9 in)17 September 2025
Oct48.3 mm (1.9 in)4 October 2013
Nov9.7 mm (0.38 in)17 November 1948
Dec17.3 mm (0.7 in)15 December 2014

Period of Record Coverage

1948 to 2023
Days with data per year at Powder Rvr (School) 16 years of record at Powder Rvr (School), 1948 to 2023. 3 years have data for under 90 percent of days and are left out of rankings: 1948, 1949, 2023. 1948: 153 of 366 days1949: 31 of 365 days2010: 363 of 365 days2011: 357 of 365 days2012: 364 of 366 days2013: 364 of 365 days2014: 363 of 365 days2015: 365 of 365 days2016: 366 of 366 days2017: 365 of 365 days2018: 364 of 365 days2019: 362 of 365 days2020: 366 of 366 days2021: 363 of 365 days2022: 364 of 365 days2023: 324 of 365 days201020152020
16 years of record at Powder Rvr (School), 1948 to 2023. 3 years have data for under 90 percent of days and are left out of rankings: 1948, 1949, 2023.
Days with data per year at Powder Rvr (School)
YearDays with dataShare of yearComplete
194815342%No
1949318%No
201036399%Yes
201135798%Yes
201236499%Yes
2013364100%Yes
201436399%Yes
2015365100%Yes
2016366100%Yes
2017365100%Yes
2018364100%Yes
201936299%Yes
2020366100%Yes
202136399%Yes
2022364100%Yes
202332489%No

Latest Records

0

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

Climate Trend

13 complete years, 2010 to 2022
Annual mean temperature at Powder Rvr (School) as warming stripes, 2010 to 2022 One stripe for each of 13 complete years at Powder Rvr (School), 2010 to 2022. Blue stripes are years cooler than the station's own mean of 6.5 C (43.7 F); red stripes are warmer. The coolest year was 2019, at 4.5 C (40.1 F), and the warmest was 2016, at 8.8 C (47.8 F). The strongest colour marks a difference of 2.3 C (4.1 F). 2010: 6.2 C, -0.3 C from the station mean2011: 5.6 C, -0.9 C from the station mean2012: 8.0 C, +1.5 C from the station mean2013: 6.0 C, -0.4 C from the station mean2014: 5.9 C, -0.6 C from the station mean2015: 8.1 C, +1.6 C from the station mean2016: 8.8 C, +2.3 C from the station mean2017: 7.2 C, +0.7 C from the station mean2018: 5.8 C, -0.7 C from the station mean2019: 4.5 C, -2.0 C from the station mean2020: 5.9 C, -0.5 C from the station mean2021: 6.7 C, +0.2 C from the station mean2022: 5.6 C, -0.9 C from the station mean2010201220142016201820202022
One stripe for each of 13 complete years at Powder Rvr (School), 2010 to 2022. Blue stripes are years cooler than the station's own mean of 6.5 C (43.7 F); red stripes are warmer. The coolest year was 2019, at 4.5 C (40.1 F), and the warmest was 2016, at 8.8 C (47.8 F). The strongest colour marks a difference of 2.3 C (4.1 F).
Annual mean temperature at Powder Rvr (School) as warming stripes, 2010 to 2022
YearAnnual mean temperatureDifference from the station mean
20106.2 C-0.34 C
20115.6 C-0.86 C
20128.0 C+1.47 C
20136.0 C-0.45 C
20145.9 C-0.56 C
20158.1 C+1.60 C
20168.8 C+2.29 C
20177.2 C+0.68 C
20185.8 C-0.67 C
20194.5 C-1.98 C
20205.9 C-0.55 C
20216.7 C+0.20 C
20225.6 C-0.86 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

1948 to 2026
Yearly extremes at Powder Rvr (School): the record and the median year
MeasureRecordYear of the recordMedian yearYears with a value
Hottest day (TXx)38.3 C (100.9 F)201836.1 C (97.0 F)16
Coldest night (TNn)-40.0 C (-40.0 F)2022-29.7 C (-21.5 F)16
Wettest day (Rx1day)51.6 mm (2.0 in)202325.4 mm (1.0 in)20
Wettest five days (Rx5day)69.4 mm (2.7 in)201138.6 mm (1.5 in)20
Longest dry spell (CDD)85 days201137 days20

Hottest day (TXx)

Hottest day (TXx) at Powder Rvr (School) by year The hottest day of the year at Powder Rvr (School), 1948 to 2026. The record is 38.3 C (100.9 F) in 2018, marked on the chart; the median year is 36.1 C (97.0 F). 0102030401960198020002020Record: 38.3 C (100.9 F) in 2018
The hottest day of the year at Powder Rvr (School), 1948 to 2026. The record is 38.3 C (100.9 F) in 2018, marked on the chart; the median year is 36.1 C (97.0 F).
Hottest day (TXx) at Powder Rvr (School) by year
YearHottest day (TXx)
194836.1 C (97.0 F)
19495.0 C (41.0 F)
1950n/a
201036.1 C (97.0 F)
201136.1 C (97.0 F)
201237.2 C (99.0 F)
201336.1 C (97.0 F)
201437.8 C (100.0 F)
201536.1 C (97.0 F)
201636.1 C (97.0 F)
201735.6 C (96.1 F)
201838.3 C (100.9 F)
201935.6 C (96.1 F)
202036.1 C (97.0 F)
202138.3 C (100.9 F)
202237.2 C (99.0 F)
202336.7 C (98.1 F)
2024n/a
2025n/a
2026n/a

Coldest night (TNn)

Coldest night (TNn) at Powder Rvr (School) by year The coldest night of the year at Powder Rvr (School), 1948 to 2026. The record is -40.0 C (-40.0 F) in 2022, marked on the chart; the median year is -29.7 C (-21.5 F). -40-35-30-25-201960198020002020Record: -40.0 C (-40.0 F) in 2022
The coldest night of the year at Powder Rvr (School), 1948 to 2026. The record is -40.0 C (-40.0 F) in 2022, marked on the chart; the median year is -29.7 C (-21.5 F).
Coldest night (TNn) at Powder Rvr (School) by year
YearColdest night (TNn)
1948-27.8 C (-18.0 F)
1949-37.2 C (-35.0 F)
1950n/a
2010-30.0 C (-22.0 F)
2011-35.6 C (-32.1 F)
2012-23.3 C (-9.9 F)
2013-32.8 C (-27.0 F)
2014-33.9 C (-29.0 F)
2015-26.7 C (-16.1 F)
2016-20.6 C (-5.1 F)
2017-28.9 C (-20.0 F)
2018-27.2 C (-17.0 F)
2019-29.4 C (-20.9 F)
2020-24.4 C (-11.9 F)
2021-31.1 C (-24.0 F)
2022-40.0 C (-40.0 F)
2023-33.9 C (-29.0 F)
2024n/a
2025n/a
2026n/a

Wettest day (Rx1day)

Wettest day (Rx1day) at Powder Rvr (School) by year The wettest day of the year at Powder Rvr (School), 1948 to 2026. The record is 51.6 mm (2.0 in) in 2023, marked on the chart; the median year is 25.4 mm (1.0 in). 1020304050601960198020002020Record: 51.6 mm (2.0 in) in 2023
The wettest day of the year at Powder Rvr (School), 1948 to 2026. The record is 51.6 mm (2.0 in) in 2023, marked on the chart; the median year is 25.4 mm (1.0 in).
Wettest day (Rx1day) at Powder Rvr (School) by year
YearWettest day (Rx1day)
194820.1 mm (0.8 in)
194911.7 mm (0.5 in)
195012.2 mm (0.5 in)
201020.6 mm (0.8 in)
201140.9 mm (1.6 in)
201212.7 mm (0.5 in)
201348.3 mm (1.9 in)
201422.9 mm (0.9 in)
201531.8 mm (1.3 in)
201630.5 mm (1.2 in)
201718.3 mm (0.7 in)
201831.8 mm (1.3 in)
201923.9 mm (0.9 in)
202014.2 mm (0.6 in)
202127.9 mm (1.1 in)
202226.9 mm (1.1 in)
202351.6 mm (2.0 in)
202412.7 mm (0.5 in)
202526.9 mm (1.1 in)
202629.7 mm (1.2 in)

Wettest five days (Rx5day)

Wettest five days (Rx5day) at Powder Rvr (School) by year The wettest five days of the year at Powder Rvr (School), 1948 to 2026. The record is 69.4 mm (2.7 in) in 2011, marked on the chart; the median year is 38.6 mm (1.5 in). 0204060801960198020002020Record: 69.4 mm (2.7 in) in 2011
The wettest five days of the year at Powder Rvr (School), 1948 to 2026. The record is 69.4 mm (2.7 in) in 2011, marked on the chart; the median year is 38.6 mm (1.5 in).
Wettest five days (Rx5day) at Powder Rvr (School) by year
YearWettest five days (Rx5day)
194820.1 mm (0.8 in)
194921.9 mm (0.9 in)
195019.6 mm (0.8 in)
201037.1 mm (1.5 in)
201169.4 mm (2.7 in)
201221.9 mm (0.9 in)
201357.0 mm (2.2 in)
201425.7 mm (1.0 in)
201564.1 mm (2.5 in)
201652.2 mm (2.1 in)
201744.3 mm (1.7 in)
201844.0 mm (1.7 in)
201940.2 mm (1.6 in)
202014.2 mm (0.6 in)
202135.8 mm (1.4 in)
202243.4 mm (1.7 in)
202362.2 mm (2.4 in)
202423.1 mm (0.9 in)
202538.1 mm (1.5 in)
202639.1 mm (1.5 in)

Longest dry spell (CDD)

Longest dry spell (CDD) at Powder Rvr (School) by year The longest dry spell of the year at Powder Rvr (School), 1948 to 2026. The record is 85 days in 2011, marked on the chart; the median year is 37 days. 0204060801001960198020002020Record: 85 days in 2011
The longest dry spell of the year at Powder Rvr (School), 1948 to 2026. The record is 85 days in 2011, marked on the chart; the median year is 37 days.
Longest dry spell (CDD) at Powder Rvr (School) by year
YearLongest dry spell (CDD)
194831 days
19497 days
195016 days
201048 days
201185 days
201262 days
201320 days
201427 days
201572 days
201649 days
201730 days
201838 days
201922 days
202048 days
202128 days
202259 days
202335 days
202442 days
202527 days
202641 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 Powder Rvr (School) standing records by year: CSV or JSON. Field meanings are on the data page.
  • Data for Powder Rvr (School) 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).