Castaic Weather in July
Average highs run from 92°F on July 1 to 96°F on July 31, and lows from 61°F to 64°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 low
- Normal high
- Record high
- Record low
July at a glance
- Average high
- 94°F
- Average low
- 63°F
- Precipitation
- 0.00 in
- Record high
- 106°FJul 6, 2024
- Record low
- 40°FJul 18, 1940
- Chance of a freeze
- 0%
- Days of 90°F or more
- 22.0
- Daylight
- 14 h 25 min to 13 h 53 min
- Cloud cover
- 18%
- Humidity
- 35%
- Dew point
- 44°F
- Wind
- 5.8 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 | 92°F | 61°F | 100°F 1950 | 45°F 1956 | 0% | 0% |
| Jul 2 | 92°F | 61°F | 98°F 1950 | 43°F 1935 | 0% | 0% |
| Jul 3 | 92°F | 61°F | 100°F 2013 | 43°F 1935 | 0% | 0% |
| Jul 4 | 93°F | 61°F | 102°F 2007 | 47°F 1955 | 0% | 0% |
| Jul 5 | 93°F | 62°F | 101°F 2007 | 48°F 1955 | 0% | 0% |
| Jul 6 | 93°F | 62°F | 106°F 2024 | 47°F 1969 | 0% | 0% |
| Jul 7 | 93°F | 62°F | 101°F 2024 | 50°F 1935 | 0% | 0% |
| Jul 8 | 93°F | 62°F | 103°F 2017 | 51°F 1935 | 0% | 0% |
| Jul 9 | 94°F | 63°F | 102°F 2002 | 44°F 1936 | 0% | 0% |
| Jul 10 | 94°F | 63°F | 98°F 1959 | 46°F 1936 | 0% | 0% |
| Jul 11 | 94°F | 63°F | 101°F 2024 | 43°F 1974 | 0% | 0% |
| Jul 12 | 94°F | 63°F | 99°F 2021 | 47°F 1997 | 1% | 0% |
| Jul 13 | 94°F | 63°F | 99°F 2014 | 51°F 1995 | 1% | 0% |
| Jul 14 | 94°F | 64°F | 101°F 1972 | 51°F 1968 | 1% | 0% |
| Jul 15 | 94°F | 64°F | 102°F 2023 | 50°F 1968 | 1% | 0% |
| Jul 16 | 95°F | 64°F | 99°F 2023 | 48°F 1940 | 1% | 0% |
| Jul 17 | 95°F | 64°F | 100°F 1936 | 46°F 1940 | 1% | 0% |
| Jul 18 | 95°F | 64°F | 100°F 1960 | 40°F 1940 | 1% | 0% |
| Jul 19 | 95°F | 64°F | 98°F 1960 | 49°F 1987 | 1% | 0% |
| Jul 20 | 95°F | 64°F | 100°F 1938 | 46°F 1972 | 1% | 0% |
| Jul 21 | 95°F | 64°F | 96°F 1941 | 45°F 1972 | 1% | 0% |
| Jul 22 | 95°F | 64°F | 99°F 2006 | 47°F 1987 | 1% | 0% |
| Jul 23 | 95°F | 64°F | 98°F 1942 | 52°F 2025 | 1% | 0% |
| Jul 24 | 95°F | 64°F | 97°F 1959 | 54°F 1941 | 1% | 0% |
| Jul 25 | 95°F | 64°F | 98°F 1959 | 52°F 1944 | 1% | 0% |
| Jul 26 | 95°F | 64°F | 100°F 2016 | 50°F 1941 | 1% | 0% |
| Jul 27 | 95°F | 64°F | 102°F 1934 | 49°F 1941 | 1% | 0% |
| Jul 28 | 95°F | 64°F | 103°F 1995 | 50°F 1940 | 1% | 0% |
| Jul 29 | 95°F | 64°F | 103°F 2016 | 55°F 1940 | 1% | 0% |
| Jul 30 | 95°F | 64°F | 97°F 1943 | 52°F 1975 | 1% | 0% |
| Jul 31 | 96°F | 64°F | 98°F 1995 | 53°F 1998 | 1% | 0% |
Chance of rain
- Chance of a wet day
- Chance of snowfall
Sunrise and sunset
Times for 2026, local time (PDT).
- July 1
- sunrise 5:46 AM, sunset 8:11 PM
- July 31
- sunrise 6:04 AM, sunset 7:57 PM
Other months
Sources
Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00046161 (Newhall 5NW), public domain. Records: NOAA GHCN-Daily, station USW00023187, 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.