Walnut climate

Walnut Weather in July

NOAA 1991-2020 normals for Pomona/fairplex, 11.4 km from Walnut

Average highs run from 88°F on July 1 to 92°F on July 31, and lows from 60°F to 63°F. Normal precipitation for the month is 0.00 in over about 0 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 Walnut, 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
62°F
Precipitation
0.00 in
Record high
113°FJul 22, 2006
Record low
41°FJul 7, 1948
Chance of a freeze
0%
Days of 90°F or more
16.8
Daylight
14 h 23 min to 13 h 51 min
Cloud cover
19%
Humidity
53%
Dew point
53°F
Wind
5.4 mph

Every day of the month

A wet day has at least 0.01 inch of precipitation.

DateNormal highNormal lowRecord highRecord lowChance wet
Jul 188°F60°F104°F 193745°F 19191%
Jul 288°F61°F103°F 198547°F 19191%
Jul 388°F61°F105°F 195744°F 19331%
Jul 489°F61°F108°F 195745°F 19201%
Jul 589°F61°F105°F 194242°F 19481%
Jul 689°F61°F104°F 189543°F 19481%
Jul 789°F61°F103°F 195141°F 19481%
Jul 889°F62°F104°F 190143°F 19481%
Jul 990°F62°F103°F 195946°F 19351%
Jul 1090°F62°F107°F 195945°F 19331%
Jul 1190°F62°F105°F 193447°F 19181%
Jul 1290°F62°F104°F 193943°F 19241%
Jul 1390°F62°F104°F 200645°F 19321%
Jul 1490°F63°F105°F 200646°F 19141%
Jul 1590°F63°F107°F 193647°F 19241%
Jul 1691°F63°F107°F 193044°F 19401%
Jul 1791°F63°F110°F 192545°F 19401%
Jul 1891°F63°F107°F 192747°F 19011%
Jul 1991°F63°F106°F 194745°F 19401%
Jul 2091°F63°F105°F 196046°F 19401%
Jul 2191°F63°F105°F 200646°F 19401%
Jul 2291°F63°F113°F 200647°F 19871%
Jul 2391°F63°F104°F 191949°F 19571%
Jul 2491°F63°F103°F 191948°F 19301%
Jul 2591°F63°F106°F 193145°F 19481%
Jul 2692°F63°F108°F 194345°F 19481%
Jul 2792°F63°F112°F 193449°F 19301%
Jul 2892°F63°F102°F 194746°F 19301%
Jul 2992°F63°F105°F 197245°F 19141%
Jul 3092°F63°F103°F 192046°F 19131%
Jul 3192°F63°F105°F 197248°F 19621%

Chance of rain

The chance of at least 0.01 inch of precipitation on each date at Walnut, in percent.00.20.40.60.81102030
  • Chance of a wet day

Sunrise and sunset

Times for 2026, local time (PDT).

July 1
sunrise 5:44 AM, sunset 8:07 PM
July 31
sunrise 6:02 AM, sunset 7:53 PM

Every day of July: sun and moon

Other months

Sources

Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00047050 (Pomona/fairplex), public domain. Records: NOAA GHCN-Daily, station USC00047050, 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.