Arco climate

Arco Weather in August

NOAA 1991-2020 normals for Arco, 0.2 km from Arco

Average highs run from 88°F on August 1 to 81°F on August 31, and lows from 53°F to 46°F. Normal precipitation for the month is 0.54 in over about 3 wet days.

August day by day

The normal high and low for each date, and the record, in °F.

Normal daily high and low temperature at Arco, in °F, with the record for each date.20406080100151015202530
  • Normal low
  • Normal high
  • Record high
  • Record low

August at a glance

Average high
85°F
Average low
50°F
Precipitation
0.54 in
Record high
99°FAug 2, 2017
Record low
37°FAug 22, 2021
Chance of a freeze
6%
Days of 90°F or more
6.6
Daylight
14 h 33 min to 13 h 14 min
Cloud cover
38%
Humidity
33%
Dew point
34°F
Wind
8.1 mph

Every day of the month

A wet day has at least 0.01 inch of precipitation; snow means at least 0.1 inch of snowfall.

DateNormal highNormal lowRecord highRecord lowChance wetChance of snow
Aug 188°F53°F98°F 201752°F 20259%0%
Aug 288°F53°F99°F 201753°F 20169%0%
Aug 388°F52°F97°F 201746°F 20169%0%
Aug 488°F52°F95°F 201746°F 20269%0%
Aug 588°F52°F94°F 201950°F 20259%0%
Aug 687°F52°F95°F 201944°F 20189%0%
Aug 787°F52°F97°F 202646°F 20229%0%
Aug 887°F52°F97°F 202644°F 20259%0%
Aug 987°F51°F96°F 201846°F 20219%0%
Aug 1087°F51°F98°F 201839°F 20169%0%
Aug 1186°F51°F97°F 201844°F 20169%0%
Aug 1286°F51°F94°F 202546°F 20199%0%
Aug 1386°F51°F94°F 202148°F 20199%0%
Aug 1486°F50°F93°F 202147°F 20189%0%
Aug 1585°F50°F95°F 202349°F 201710%0%
Aug 1685°F50°F95°F 202346°F 201510%0%
Aug 1785°F50°F96°F 202048°F 201910%0%
Aug 1885°F49°F96°F 202244°F 202110%0%
Aug 1984°F49°F95°F 202538°F 202110%0%
Aug 2084°F49°F97°F 202641°F 202110%0%
Aug 2184°F48°F97°F 202645°F 202110%0%
Aug 2283°F48°F92°F 202537°F 202110%0%
Aug 2383°F48°F94°F 202542°F 201610%0%
Aug 2483°F48°F92°F 202541°F 201610%0%
Aug 2582°F47°F92°F 201541°F 202410%0%
Aug 2682°F47°F89°F 201744°F 202410%0%
Aug 2782°F47°F94°F 201745°F 202110%0%
Aug 2882°F46°F95°F 201739°F 202210%0%
Aug 2981°F46°F93°F 201740°F 202410%0%
Aug 3081°F46°F91°F 202242°F 202211%0%
Aug 3181°F46°F95°F 202242°F 201411%0%

Chance of rain

The chance of at least 0.01 inch of precipitation on each date at Arco, in percent, and of at least 0.1 inch of snowfall.02.557.51012.51102030
  • Chance of a wet day
  • Chance of snowfall

Sunrise and sunset

Times for 2026, local time (MDT).

August 1
sunrise 6:23 AM, sunset 8:56 PM
August 31
sunrise 6:56 AM, sunset 8:10 PM

Every day of August: sun and moon

Other months

Sources

Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00100375 (Arco), public domain. Records: NOAA GHCN-Daily, station USC00100774, every year on file, quality-flagged values removed. Cloud, humidity, wind and sunshine: NASA POWER (MERRA-2, CERES and GEWEX SRB), 1991-2020. The data was obtained from the National Aeronautics and Space Administration (NASA) Langley Research Center's Prediction Of Worldwide Energy Resources (POWER) project funded through the NASA Earth Science Division: POWER Daily API v2, accessed 2026-09-24. Sun and moon: computed with the NOAA solar equations and Meeus.