Johnson City climate

Johnson City Weather in August

NOAA 1991-2020 normals for Oregon City, 5.8 km from Johnson City

Average highs run from 86°F on August 1 to 82°F on August 31, and lows from 58°F to 56°F. Normal precipitation for the month is 0.56 in.

August day by day

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

Normal daily high and low temperature at Johnson City, in °F, with the record for each date.406080100120151015202530
  • Normal low
  • Normal high
  • Record high
  • Record low

August at a glance

Average high
84°F
Average low
58°F
Precipitation
0.56 in
Record high
108°FAug 14, 2023
Record low
44°FAug 29, 1951
Chance of a freeze
0%
Days of 90°F or more
7.0
Daylight
14 h 43 min to 13 h 18 min
Cloud cover
44%
Humidity
66%
Dew point
52°F
Wind
4.3 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 186°F58°F99°F 202447°F 19570%
Aug 286°F59°F103°F 201750°F 19590%
Aug 386°F59°F105°F 201747°F 19500%
Aug 486°F58°F102°F 201251°F 19500%
Aug 586°F58°F100°F 194548°F 19500%
Aug 685°F58°F102°F 197249°F 19500%
Aug 785°F58°F104°F 197249°F 19740%
Aug 885°F58°F107°F 198149°F 19700%
Aug 985°F58°F105°F 198148°F 19540%
Aug 1085°F58°F107°F 198150°F 19470%
Aug 1185°F58°F102°F 197750°F 19660%
Aug 1285°F58°F104°F 197749°F 19570%
Aug 1385°F58°F102°F 200245°F 19490%
Aug 1485°F58°F108°F 202347°F 19640%
Aug 1584°F58°F103°F 202351°F 19440%
Aug 1684°F58°F103°F 202347°F 19690%
Aug 1784°F58°F105°F 197745°F 19700%
Aug 1884°F58°F99°F 201645°F 19730%
Aug 1984°F57°F100°F 201646°F 19470%
Aug 2084°F57°F100°F 201646°F 19470%
Aug 2184°F57°F95°F 194545°F 19550%
Aug 2283°F57°F102°F 202547°F 19550%
Aug 2383°F57°F101°F 198848°F 19510%
Aug 2483°F57°F99°F 198247°F 19920%
Aug 2583°F57°F95°F 201647°F 19570%
Aug 2683°F57°F100°F 198646°F 19620%
Aug 2783°F56°F98°F 201947°F 19620%
Aug 2882°F56°F102°F 196745°F 19800%
Aug 2982°F56°F95°F 194044°F 19510%
Aug 3082°F56°F100°F 202246°F 19510%
Aug 3182°F56°F102°F 198744°F 19510%

Chance of rain

The chance of at least 0.01 inch of precipitation on each date at Johnson City, in percent, and of at least 0.1 inch of snowfall.00.21102030
  • Chance of a wet day
  • Chance of snowfall

Sunrise and sunset

Times for 2026, local time (PDT).

August 1
sunrise 5:55 AM, sunset 8:38 PM
August 31
sunrise 6:31 AM, sunset 7:49 PM

Every day of August: sun and moon

Other months

Sources

Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00356334 (Oregon City), public domain. Records: NOAA GHCN-Daily, station USW00024229, 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.