Daily records
Page built 2026-10-15
Data as of 2025-12-31
Search
Built 2026-10-15 (15 October 2026)

Upton 13 SW Weather Records (USC00489207)

Record envelope, standing records and threshold days for Upton 13 SW (USC00489207), Wyoming, United States, with 54 years of record.

Key Facts for Upton 13 SW

  • Upton 13 SW (USC00489207) is a weather station in Wyoming, United States at 43.93 latitude and -104.75 longitude, 1,457 m (4,780 ft) above sea level.
  • The station reports from 1948 to 2001, 54 years of record.
  • 0 records set at Upton 13 SW still stand.
  • Records are tracked for prcp, snow, snwd: an element needs 30 years of data to be eligible.
  • Upton 13 SW set a daily record precipitation of 14.5 mm (0.6 in) on 14 July 2001.

About the Station

  • Location: Wyoming, United States, 43.93 latitude, -104.75 longitude.
  • Elevation: 1,457 m (4,780 ft).
  • Period of record: 1948 to 2001, 54 years.
  • Eligible elements: prcp, snow, snwd.

Daily Record Envelope and 2026

0 days at or beyond a record
Daily record high and record low at Upton 13 SW, with 2026 drawn through them The band shows the record high and record low for each calendar day at Upton 13 SW. 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 Upton 13 SW. 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 Upton 13 SW, with 2026 drawn through them
MonthHighest record highLowest record low2026 highest maximum2026 lowest minimum
Jann/an/an/an/a
Febn/an/an/an/a
Marn/an/an/an/a
Aprn/an/an/an/a
Mayn/an/an/an/a
Junn/an/an/an/a
Juln/an/an/an/a
Augn/an/an/an/a
Sepn/an/an/an/a
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 Upton 13 SW by the year they were set 0 records at Upton 13 SW still stand. 00000000000
0 records at Upton 13 SW still stand.
Standing records at Upton 13 SW by the year they were set
Year setStanding records

All-Time Record Progression

1 new records
When Upton 13 SW set new all-time records 1 all-time records were set at Upton 13 SW between 25 December 1985 and 25 December 1985. Each dot is a new record. Record snow depth25 December 1985: Record snow depth 86.4 cm (34.0 in)1985
1 all-time records were set at Upton 13 SW between 25 December 1985 and 25 December 1985. Each dot is a new record.
When Upton 13 SW set new all-time records
DateKindDetail
1985-12-25Record snow depthRecord snow depth 86.4 cm (34.0 in)

Wettest Day of Each Month

May: 61.7 mm (2.4 in)
Record daily precipitation for each month at Upton 13 SW The wettest day on record for each calendar month at Upton 13 SW. The most was 61.7 mm (2.4 in) on 22 May 1952. 020406080 Jan: 26.2 mm (1.0 in), 23 January 1949 Jan Feb: 31.0 mm (1.2 in), 9 February 1953 Feb Mar: 36.6 mm (1.4 in), 11 March 1954 Mar Apr: 42.4 mm (1.7 in), 4 April 1955 Apr May: 61.7 mm (2.4 in), 22 May 1952 May Jun: 48.8 mm (1.9 in), 14 June 1976 Jun Jul: 52.1 mm (2.1 in), 21 July 1978 Jul Aug: 58.4 mm (2.3 in), 4 August 1983 Aug Sep: 26.2 mm (1.0 in), 2 September 1973 Sep Oct: 38.9 mm (1.5 in), 6 October 1994 Oct Nov: 23.6 mm (0.9 in), 1 November 2000 Nov Dec: 28.4 mm (1.1 in), 10 December 1997 Dec
The wettest day on record for each calendar month at Upton 13 SW. The most was 61.7 mm (2.4 in) on 22 May 1952.
Record daily precipitation for each month at Upton 13 SW
MonthRecord daily precipitation (mm)Date
Jan26.2 mm (1.0 in)23 January 1949
Feb31.0 mm (1.2 in)9 February 1953
Mar36.6 mm (1.4 in)11 March 1954
Apr42.4 mm (1.7 in)4 April 1955
May61.7 mm (2.4 in)22 May 1952
Jun48.8 mm (1.9 in)14 June 1976
Jul52.1 mm (2.1 in)21 July 1978
Aug58.4 mm (2.3 in)4 August 1983
Sep26.2 mm (1.0 in)2 September 1973
Oct38.9 mm (1.5 in)6 October 1994
Nov23.6 mm (0.9 in)1 November 2000
Dec28.4 mm (1.1 in)10 December 1997

Latest Records

20
Latest records at Upton 13 SW
DateStationRecordValueBeat old record byOld record stoodSignificance
14 July 2001Upton 13 SW, USdaily rain14.5 mm (0.6 in)4.3 mm (0.17 in)12 years13 of 100 (Routine)
7 July 2001Upton 13 SW, USdaily rain16.0 mm (0.6 in)8.4 mm (0.33 in)24 years20 of 100 (Routine)
4 June 2001Upton 13 SW, USdaily rain45.7 mm (1.8 in)29.7 mm (1.2 in)16 years42 of 100 (Notable)
22 April 2001Upton 13 SW, USdaily rain9.7 mm (0.38 in)2.1 mm (0.08 in)38 years19 of 100 (Routine)
6 April 2001Upton 13 SW, USdaily rain27.4 mm (1.1 in)4.5 mm (0.18 in)4 years12 of 100 (Routine)
27 March 2001Upton 13 SW, USdaily rain5.1 mm (0.20 in)0.3 mm (0.01 in)2 years5 of 100 (Routine)
27 March 2001Upton 13 SW, USdaily snowfall (Tie)5.1 cm (2.0 in)tie43 years4 of 100 (Routine)
7 February 2001Upton 13 SW, USdaily rain17.0 mm (0.7 in)13.7 mm (0.5 in)22 years20 of 100 (Routine)
7 February 2001Upton 13 SW, USmonthly snowfall (Tie)22.9 cm (9.0 in)tie47 years7 of 100 (Routine)
10 December 2000Upton 13 SW, USdaily snowfall (Tie)5.1 cm (2.0 in)tie3 years1 of 100 (Routine)
10 November 2000Upton 13 SW, USdaily snowfall7.6 cm (3.0 in)2.5 cm (1.0 in)22 years16 of 100 (Routine)
1 November 2000Upton 13 SW, USmonthly rain23.6 mm (0.9 in)5.1 mm (0.20 in)16 years20 of 100 (Routine)
1 November 2000Upton 13 SW, USdaily snowfall15.2 cm (6.0 in)7.6 cm (3.0 in)33 years29 of 100 (Routine)
23 September 2000Upton 13 SW, USdaily snowfall5.1 cm (2.0 in)5.1 cm (2.0 in)51 years30 of 100 (Routine)
23 September 2000Upton 13 SW, USdaily snow depth2.5 cm (1.0 in)2.5 cm (1.0 in)51 years20 of 100 (Routine)
22 September 2000Upton 13 SW, USdaily snow depth2.5 cm (1.0 in)2.5 cm (1.0 in)51 years20 of 100 (Routine)
22 September 2000Upton 13 SW, USdaily snowfall (Tie)2.5 cm (1.0 in)tie40 years4 of 100 (Routine)
2 August 2000Upton 13 SW, USdaily rain14.2 mm (0.6 in)5.1 mm (0.20 in)47 years20 of 100 (Routine)
10 July 2000Upton 13 SW, USdaily rain42.7 mm (1.7 in)27.7 mm (1.1 in)49 years55 of 100 (Notable)
11 May 2000Upton 13 SW, USdaily rain29.7 mm (1.2 in)9.9 mm (0.39 in)36 years26 of 100 (Routine)

Extremes by Year

1948 to 2001
Yearly extremes at Upton 13 SW: the record and the median year
MeasureRecordYear of the recordMedian yearYears with a value
Wettest day (Rx1day)61.7 mm (2.4 in)195236.7 mm (1.4 in)54
Wettest five days (Rx5day)98.8 mm (3.9 in)195550.3 mm (2.0 in)54
Longest dry spell (CDD)94 days196542 days54

Wettest day (Rx1day)

Wettest day (Rx1day) at Upton 13 SW by year The wettest day of the year at Upton 13 SW, 1948 to 2001. The record is 61.7 mm (2.4 in) in 1952, marked on the chart; the median year is 36.7 mm (1.4 in). 020406080195019601970198019902000Record: 61.7 mm (2.4 in) in 1952
The wettest day of the year at Upton 13 SW, 1948 to 2001. The record is 61.7 mm (2.4 in) in 1952, marked on the chart; the median year is 36.7 mm (1.4 in).
Wettest day (Rx1day) at Upton 13 SW by year
YearWettest day (Rx1day)
19482.0 mm (0.08 in)
194926.2 mm (1.0 in)
195026.9 mm (1.1 in)
195115.7 mm (0.6 in)
195261.7 mm (2.4 in)
195347.5 mm (1.9 in)
195436.6 mm (1.4 in)
195555.6 mm (2.2 in)
195634.3 mm (1.4 in)
195723.6 mm (0.9 in)
195823.9 mm (0.9 in)
195924.4 mm (1.0 in)
196010.9 mm (0.4 in)
196119.3 mm (0.8 in)
196239.4 mm (1.6 in)
196344.5 mm (1.8 in)
196436.8 mm (1.4 in)
196546.5 mm (1.8 in)
196637.6 mm (1.5 in)
196726.9 mm (1.1 in)
196838.6 mm (1.5 in)
196936.3 mm (1.4 in)
197035.8 mm (1.4 in)
197145.2 mm (1.8 in)
197226.7 mm (1.1 in)
197338.6 mm (1.5 in)
197453.1 mm (2.1 in)
197544.5 mm (1.8 in)
197648.8 mm (1.9 in)
197725.4 mm (1.0 in)
197858.9 mm (2.3 in)
197950.8 mm (2.0 in)
198027.9 mm (1.1 in)
198151.3 mm (2.0 in)
198235.6 mm (1.4 in)
198358.4 mm (2.3 in)
198426.4 mm (1.0 in)
198514.7 mm (0.6 in)
198636.3 mm (1.4 in)
198736.8 mm (1.4 in)
198822.1 mm (0.9 in)
198924.9 mm (1.0 in)
199026.2 mm (1.0 in)
199135.1 mm (1.4 in)
199221.6 mm (0.9 in)
199337.1 mm (1.5 in)
199438.9 mm (1.5 in)
199555.9 mm (2.2 in)
199638.4 mm (1.5 in)
199738.1 mm (1.5 in)
199835.6 mm (1.4 in)
199942.2 mm (1.7 in)
200042.7 mm (1.7 in)
200145.7 mm (1.8 in)

Wettest five days (Rx5day)

Wettest five days (Rx5day) at Upton 13 SW by year The wettest five days of the year at Upton 13 SW, 1948 to 2001. The record is 98.8 mm (3.9 in) in 1955, marked on the chart; the median year is 50.3 mm (2.0 in). 0255075100195019601970198019902000Record: 98.8 mm (3.9 in) in 1955
The wettest five days of the year at Upton 13 SW, 1948 to 2001. The record is 98.8 mm (3.9 in) in 1955, marked on the chart; the median year is 50.3 mm (2.0 in).
Wettest five days (Rx5day) at Upton 13 SW by year
YearWettest five days (Rx5day)
19484.8 mm (0.19 in)
194952.8 mm (2.1 in)
195033.7 mm (1.3 in)
195129.4 mm (1.2 in)
195278.2 mm (3.1 in)
195369.6 mm (2.7 in)
195450.8 mm (2.0 in)
195598.8 mm (3.9 in)
195648.3 mm (1.9 in)
195737.1 mm (1.5 in)
195833.0 mm (1.3 in)
195936.3 mm (1.4 in)
196026.6 mm (1.0 in)
196128.4 mm (1.1 in)
196285.1 mm (3.4 in)
196354.7 mm (2.2 in)
196472.1 mm (2.8 in)
196560.2 mm (2.4 in)
196640.6 mm (1.6 in)
196745.7 mm (1.8 in)
196862.7 mm (2.5 in)
196992.0 mm (3.6 in)
197046.0 mm (1.8 in)
197164.7 mm (2.5 in)
197241.1 mm (1.6 in)
197367.6 mm (2.7 in)
197458.4 mm (2.3 in)
197551.7 mm (2.0 in)
197654.9 mm (2.2 in)
197728.2 mm (1.1 in)
197887.3 mm (3.4 in)
197955.6 mm (2.2 in)
198037.3 mm (1.5 in)
198160.7 mm (2.4 in)
198249.8 mm (2.0 in)
198358.4 mm (2.3 in)
198449.2 mm (1.9 in)
198516.8 mm (0.7 in)
198651.9 mm (2.0 in)
198749.3 mm (1.9 in)
198825.9 mm (1.0 in)
198946.5 mm (1.8 in)
199036.6 mm (1.4 in)
199164.3 mm (2.5 in)
199245.2 mm (1.8 in)
199363.0 mm (2.5 in)
199444.5 mm (1.8 in)
199564.3 mm (2.5 in)
199674.1 mm (2.9 in)
199741.2 mm (1.6 in)
199849.8 mm (2.0 in)
199968.6 mm (2.7 in)
200049.5 mm (1.9 in)
200163.2 mm (2.5 in)

Longest dry spell (CDD)

Longest dry spell (CDD) at Upton 13 SW by year The longest dry spell of the year at Upton 13 SW, 1948 to 2001. The record is 94 days in 1965, marked on the chart; the median year is 42 days. 20406080100195019601970198019902000Record: 94 days in 1965
The longest dry spell of the year at Upton 13 SW, 1948 to 2001. The record is 94 days in 1965, marked on the chart; the median year is 42 days.
Longest dry spell (CDD) at Upton 13 SW by year
YearLongest dry spell (CDD)
194836 days
194933 days
195059 days
195160 days
195243 days
195341 days
195442 days
195524 days
195660 days
195738 days
195845 days
195934 days
196041 days
196134 days
196244 days
196335 days
196448 days
196594 days
196633 days
196733 days
196850 days
196959 days
197048 days
197132 days
197244 days
197363 days
197450 days
197553 days
197652 days
197735 days
197828 days
197942 days
198043 days
198154 days
198220 days
198333 days
198434 days
198532 days
198631 days
198728 days
198843 days
198956 days
199038 days
199144 days
199253 days
199320 days
199431 days
199532 days
199628 days
199737 days
199843 days
199967 days
200043 days
200144 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.

Rainfall Return Levels

53 years, 1949 to 2001

A day with at least 36.1 mm (1.4 in) of rain is expected about once in 2 years. A day with at least 64.9 mm (2.6 in) of rain is expected about once in 100 years.

Rainfall return levels at Upton 13 SW: the daily rain expected about once in a given number of years
Expected about once inA day with at leastNote
2 years36.1 mm (1.4 in)
5 years46.9 mm (1.8 in)
10 years52.5 mm (2.1 in)
25 years58.4 mm (2.3 in)
50 years61.9 mm (2.4 in)
100 years64.9 mm (2.6 in)Longer than the 53 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, 53 years of values from 1949 to 2001.

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: 61.7 mm (2.4 in) in 1952; 58.9 mm (2.3 in) in 1978; 58.4 mm (2.3 in) in 1983.

Download the Data

  • Data for Upton 13 SW standing records by year: CSV or JSON. Field meanings are on the data page.
  • Data for Upton 13 SW 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).