Newcastle climate

Newcastle Weather in July

NOAA 1991-2020 normals for Renton Muni AP, 6.7 km from Newcastle

Average highs run from 74°F on July 1 to 79°F on July 31, and lows from 56°F to 59°F. Normal precipitation for the month is 0.60 in over about 4 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 Newcastle, in °F, with the record for each date.406080100120151015202530
  • Normal low
  • Normal high
  • Record high
  • Record low

July at a glance

Average high
77°F
Average low
58°F
Precipitation
0.60 in
Record high
105°FJul 29, 2009
Record low
49°FJul 5, 2000
Chance of a freeze
0%
Days of 90°F or more
1.7
Daylight
15 h 55 min to 14 h 59 min
Cloud cover
42%
Humidity
79%
Dew point
55°F
Wind
2.9 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 174°F56°F93°F 201450°F 200921%0%
Jul 275°F56°F92°F 201550°F 199921%0%
Jul 375°F56°F91°F 201550°F 200320%0%
Jul 475°F56°F90°F 201551°F 201220%0%
Jul 575°F56°F91°F 201549°F 200019%0%
Jul 676°F56°F90°F 202449°F 201019%0%
Jul 776°F57°F94°F 202453°F 200118%0%
Jul 876°F57°F94°F 202451°F 199918%0%
Jul 976°F57°F97°F 202452°F 201117%0%
Jul 1076°F57°F90°F 200353°F 201117%0%
Jul 1177°F57°F97°F 200750°F 200817%0%
Jul 1277°F57°F97°F 200753°F 200816%0%
Jul 1377°F57°F88°F 202451°F 201016%0%
Jul 1477°F58°F88°F 202551°F 201016%0%
Jul 1577°F58°F91°F 201852°F 199915%0%
Jul 1678°F58°F91°F 201854°F 200015%0%
Jul 1778°F58°F92°F 200952°F 201015%0%
Jul 1878°F58°F92°F 201553°F 201115%0%
Jul 1978°F58°F96°F 201553°F 200614%0%
Jul 2078°F58°F88°F 202452°F 200814%0%
Jul 2178°F58°F97°F 200654°F 201014%0%
Jul 2278°F58°F95°F 200654°F 199914%0%
Jul 2379°F58°F95°F 200452°F 201014%0%
Jul 2479°F58°F95°F 200450°F 200813%0%
Jul 2579°F59°F90°F 201854°F 200313%0%
Jul 2679°F59°F95°F 202253°F 200813%0%
Jul 2779°F59°F93°F 200953°F 201513%0%
Jul 2879°F59°F96°F 200955°F 201013%0%
Jul 2979°F59°F105°F 200955°F 201013%0%
Jul 3079°F59°F98°F 200954°F 200113%0%
Jul 3179°F59°F95°F 202249°F 200813%0%

Chance of rain

The chance of at least 0.01 inch of precipitation on each date at Newcastle, in percent, and of at least 0.1 inch of snowfall.05101520251102030
  • Chance of a wet day
  • Chance of snowfall

Sunrise and sunset

Times for 2026, local time (PDT).

July 1
sunrise 5:15 AM, sunset 9:10 PM
July 31
sunrise 5:45 AM, sunset 8:44 PM

Every day of July: sun and moon

Other months

Sources

Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USW00094248 (Renton Muni AP), public domain. Records: NOAA GHCN-Daily, station USW00094248, 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.