Roy Weather in July
Average highs run from 72°F on July 1 to 78°F on July 31, and lows from 51°F to 54°F. Normal precipitation for the month is 0.92 in over about 5 wet days.
July day by day
The normal high and low for each date, and the record, in °F.
- Normal low
- Normal high
- Record high
- Record low
July at a glance
- Average high
- 76°F
- Average low
- 52°F
- Precipitation
- 0.92 in
- Record high
- 103°FJul 29, 2009
- Record low
- 47°FJul 1, 2011
- Chance of a freeze
- 0%
- Days of 90°F or more
- 1.4
- Daylight
- 15 h 50 min to 14 h 55 min
- Cloud cover
- 48%
- Humidity
- 79%
- Dew point
- 55°F
- Wind
- 3.4 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.
| Date | Normal high | Normal low | Record high | Record low | Chance wet | Chance of snow |
|---|---|---|---|---|---|---|
| Jul 1 | 72°F | 51°F | 91°F 2014 | 47°F 2011 | 24% | 0% |
| Jul 2 | 72°F | 51°F | 90°F 2015 | 47°F 1999 | 23% | 0% |
| Jul 3 | 73°F | 51°F | 89°F 2015 | 47°F 2018 | 22% | 0% |
| Jul 4 | 73°F | 51°F | 88°F 2015 | 49°F 2011 | 22% | 0% |
| Jul 5 | 73°F | 51°F | 88°F 2015 | 48°F 2012 | 21% | 0% |
| Jul 6 | 74°F | 51°F | 89°F 2024 | 50°F 2001 | 20% | 0% |
| Jul 7 | 74°F | 51°F | 92°F 2024 | 49°F 2001 | 20% | 0% |
| Jul 8 | 74°F | 52°F | 100°F 2024 | 48°F 1999 | 19% | 0% |
| Jul 9 | 74°F | 52°F | 96°F 2024 | 47°F 2011 | 19% | 0% |
| Jul 10 | 75°F | 52°F | 89°F 2002 | 51°F 2020 | 18% | 0% |
| Jul 11 | 75°F | 52°F | 93°F 2007 | 49°F 2008 | 18% | 0% |
| Jul 12 | 75°F | 52°F | 88°F 2014 | 51°F 2021 | 18% | 0% |
| Jul 13 | 75°F | 52°F | 88°F 2024 | 50°F 2013 | 17% | 0% |
| Jul 14 | 76°F | 52°F | 85°F 2023 | 50°F 2017 | 17% | 0% |
| Jul 15 | 76°F | 53°F | 89°F 2023 | 50°F 1999 | 17% | 0% |
| Jul 16 | 76°F | 53°F | 93°F 2025 | 51°F 2006 | 16% | 0% |
| Jul 17 | 76°F | 53°F | 89°F 2009 | 49°F 2017 | 16% | 0% |
| Jul 18 | 77°F | 53°F | 91°F 2015 | 51°F 1999 | 16% | 0% |
| Jul 19 | 77°F | 53°F | 94°F 2015 | 51°F 2008 | 16% | 0% |
| Jul 20 | 77°F | 53°F | 86°F 2022 | 49°F 2019 | 15% | 0% |
| Jul 21 | 77°F | 53°F | 95°F 2006 | 50°F 2010 | 15% | 0% |
| Jul 22 | 77°F | 53°F | 92°F 2026 | 48°F 2011 | 15% | 0% |
| Jul 23 | 77°F | 53°F | 94°F 2004 | 49°F 2010 | 15% | 0% |
| Jul 24 | 77°F | 53°F | 97°F 2004 | 49°F 2008 | 14% | 0% |
| Jul 25 | 78°F | 53°F | 87°F 2009 | 50°F 2020 | 14% | 0% |
| Jul 26 | 78°F | 53°F | 92°F 2022 | 50°F 1999 | 14% | 0% |
| Jul 27 | 78°F | 54°F | 92°F 2022 | 52°F 2001 | 14% | 0% |
| Jul 28 | 78°F | 54°F | 95°F 2009 | 51°F 2008 | 14% | 0% |
| Jul 29 | 78°F | 54°F | 103°F 2009 | 52°F 2010 | 14% | 0% |
| Jul 30 | 78°F | 54°F | 94°F 2003 | 50°F 2001 | 14% | 0% |
| Jul 31 | 78°F | 54°F | 96°F 2022 | 50°F 2002 | 13% | 0% |
Chance of rain
- Chance of a wet day
- Chance of snowfall
Sunrise and sunset
Times for 2026, local time (PDT).
- July 1
- sunrise 5:19 AM, sunset 9:09 PM
- July 31
- sunrise 5:49 AM, sunset 8:44 PM
Other months
Sources
Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00455224 (Mcmillin Rsvr), public domain. Records: NOAA GHCN-Daily, station USW00094274, 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.