Benton County climate

Benton County Weather in July

NOAA 1991-2020 normals for Prosser, 19.5 km from Benton County

Average highs run from 86°F on July 1 to 92°F on July 31, and lows from 57°F to 61°F. Normal precipitation for the month is 0.21 in over about 2 wet days.

July day by day

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

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

July at a glance

Average high
90°F
Average low
60°F
Precipitation
0.21 in
Record high
113°FJul 30, 2020
Record low
41°FJul 25, 1948
Chance of a freeze
1%
Days of 90°F or more
17.9
Daylight
15 h 43 min to 14 h 50 min
Cloud cover
30%
Humidity
43%
Dew point
49°F
Wind
8.5 mph

Every day of the month

A wet day has at least 0.01 inch of precipitation.

DateNormal highNormal lowRecord highRecord lowChance wet
Jul 186°F57°F103°F 201347°F 19498%
Jul 286°F57°F104°F 194543°F 19528%
Jul 387°F57°F103°F 201544°F 19998%
Jul 487°F57°F103°F 196749°F 20127%
Jul 588°F58°F105°F 196849°F 19887%
Jul 688°F58°F108°F 197544°F 19597%
Jul 788°F58°F110°F 196842°F 19717%
Jul 889°F58°F104°F 194548°F 19817%
Jul 989°F59°F105°F 194550°F 20117%
Jul 1089°F59°F108°F 194548°F 19726%
Jul 1190°F59°F108°F 195249°F 19716%
Jul 1290°F59°F107°F 194548°F 19716%
Jul 1390°F59°F106°F 200251°F 19716%
Jul 1491°F60°F108°F 195552°F 19716%
Jul 1591°F60°F109°F 195550°F 19826%
Jul 1691°F60°F105°F 194947°F 19826%
Jul 1791°F60°F106°F 194752°F 19576%
Jul 1892°F60°F107°F 196050°F 19866%
Jul 1992°F61°F107°F 194652°F 19496%
Jul 2092°F61°F110°F 194653°F 19766%
Jul 2192°F61°F109°F 197953°F 19666%
Jul 2292°F61°F105°F 195650°F 19826%
Jul 2392°F61°F108°F 200648°F 19635%
Jul 2492°F61°F106°F 195143°F 19485%
Jul 2592°F61°F104°F 195041°F 19485%
Jul 2693°F61°F105°F 195046°F 19485%
Jul 2793°F61°F109°F 202046°F 19485%
Jul 2893°F61°F106°F 195851°F 19765%
Jul 2993°F61°F111°F 202051°F 19545%
Jul 3092°F61°F113°F 202050°F 19695%
Jul 3192°F61°F109°F 202049°F 19705%

Chance of rain

The chance of at least 0.01 inch of precipitation on each date at Benton County, in percent.024681102030
  • Chance of a wet day

Sunrise and sunset

Times for 2026, local time (PDT).

July 1
sunrise 5:10 AM, sunset 8:53 PM
July 31
sunrise 5:39 AM, sunset 8:29 PM

Every day of July: sun and moon

Other months

Sources

Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00456768 (Prosser), public domain. Records: NOAA GHCN-Daily, station USC00457015, 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.