Blackhawk climate

Blackhawk Weather in July

NOAA 1991-2020 normals for Mt Diablo Junction, 6.8 km from Blackhawk

Average highs run from 81°F on July 1 to 83°F on July 31, and lows from 60°F to 62°F. Normal precipitation for the month is 0.01 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 Blackhawk, in °F, with the record for each date.20406080100120151015202530
  • Normal low
  • Normal high
  • Record high
  • Record low

July at a glance

Average high
83°F
Average low
62°F
Precipitation
0.01 in
Record high
113°FJul 7, 1905
Record low
36°FJul 8, 1974
Chance of a freeze
0%
Days of 90°F or more
7.5
Daylight
14 h 45 min to 14 h 07 min
Cloud cover
14%
Humidity
60%
Dew point
51°F
Wind
11.4 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
Jul 181°F60°F110°F 195041°F 19072%0%
Jul 281°F60°F112°F 195045°F 19102%0%
Jul 381°F60°F110°F 202442°F 19642%0%
Jul 481°F60°F111°F 190541°F 19772%0%
Jul 581°F60°F111°F 190545°F 19772%0%
Jul 682°F61°F111°F 202444°F 19512%0%
Jul 782°F61°F113°F 190541°F 19092%0%
Jul 882°F61°F112°F 190536°F 19742%0%
Jul 982°F61°F108°F 190542°F 19772%0%
Jul 1082°F61°F109°F 200242°F 19762%0%
Jul 1182°F62°F111°F 196146°F 19352%0%
Jul 1283°F62°F112°F 196145°F 19652%0%
Jul 1383°F62°F107°F 198445°F 19422%0%
Jul 1483°F62°F104°F 198141°F 19182%0%
Jul 1583°F62°F107°F 194846°F 19662%0%
Jul 1683°F62°F108°F 193544°F 19042%0%
Jul 1783°F62°F109°F 198846°F 19362%0%
Jul 1883°F62°F107°F 196146°F 19092%0%
Jul 1983°F62°F108°F 193645°F 19772%0%
Jul 2083°F62°F112°F 191744°F 20221%0%
Jul 2183°F62°F112°F 191745°F 19631%0%
Jul 2283°F62°F112°F 191745°F 19641%0%
Jul 2383°F62°F112°F 200644°F 19731%0%
Jul 2483°F62°F110°F 200647°F 19771%0%
Jul 2583°F62°F111°F 198042°F 19771%0%
Jul 2683°F62°F109°F 193346°F 19161%0%
Jul 2783°F62°F108°F 193346°F 19121%0%
Jul 2883°F62°F106°F 198044°F 19161%0%
Jul 2983°F62°F108°F 195446°F 19161%0%
Jul 3083°F62°F107°F 197740°F 19101%0%
Jul 3183°F62°F106°F 190846°F 19161%0%

Chance of rain

The chance of at least 0.01 inch of precipitation on each date at Blackhawk, in percent, and of at least 0.1 inch of snowfall.00.511.522.51102030
  • Chance of a wet day
  • Chance of snowfall

Sunrise and sunset

Times for 2026, local time (PDT).

July 1
sunrise 5:49 AM, sunset 8:34 PM
July 31
sunrise 6:10 AM, sunset 8:17 PM

Every day of July: sun and moon

Other months

Sources

Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00045915 (Mt Diablo Junction), public domain. Records: NOAA GHCN-Daily, station USC00044997, 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.