Eureka Weather in July
Average highs run from 87°F on July 1 to 91°F on July 31, and lows from 59°F to 64°F. Normal precipitation for the month is 0.73 in over about 3 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
- 90°F
- Average low
- 63°F
- Precipitation
- 0.73 in
- Record high
- 107°FJul 12, 2026
- Record low
- 38°FJul 2, 1992
- Chance of a freeze
- 0%
- Days of 90°F or more
- 21.9
- Daylight
- 14 h 57 min to 14 h 17 min
- Cloud cover
- 42%
- Humidity
- 35%
- Dew point
- 42°F
- Wind
- 6.7 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 | 87°F | 59°F | 103°F 1950 | 40°F 1968 | 10% | 0% |
| Jul 2 | 87°F | 59°F | 104°F 1950 | 38°F 1992 | 10% | 0% |
| Jul 3 | 87°F | 60°F | 103°F 1985 | 42°F 1992 | 10% | 0% |
| Jul 4 | 88°F | 60°F | 104°F 1985 | 41°F 1983 | 10% | 0% |
| Jul 5 | 88°F | 60°F | 105°F 1985 | 40°F 1993 | 10% | 0% |
| Jul 6 | 88°F | 61°F | 104°F 1985 | 39°F 1982 | 10% | 0% |
| Jul 7 | 89°F | 61°F | 105°F 2002 | 43°F 1994 | 10% | 0% |
| Jul 8 | 89°F | 61°F | 106°F 1989 | 46°F 1994 | 10% | 0% |
| Jul 9 | 89°F | 62°F | 103°F 1953 | 44°F 1959 | 10% | 0% |
| Jul 10 | 89°F | 62°F | 106°F 2002 | 44°F 1983 | 10% | 0% |
| Jul 11 | 90°F | 62°F | 104°F 1976 | 38°F 1983 | 10% | 0% |
| Jul 12 | 90°F | 62°F | 107°F 2026 | 45°F 1983 | 10% | 0% |
| Jul 13 | 90°F | 63°F | 104°F 1954 | 44°F 1943 | 11% | 0% |
| Jul 14 | 90°F | 63°F | 102°F 1951 | 46°F 1962 | 11% | 0% |
| Jul 15 | 91°F | 63°F | 105°F 1951 | 49°F 1962 | 11% | 0% |
| Jul 16 | 91°F | 63°F | 103°F 1951 | 45°F 1983 | 11% | 0% |
| Jul 17 | 91°F | 63°F | 102°F 1960 | 43°F 1993 | 11% | 0% |
| Jul 18 | 91°F | 64°F | 102°F 1998 | 47°F 1993 | 11% | 0% |
| Jul 19 | 91°F | 64°F | 101°F 1947 | 47°F 1987 | 11% | 0% |
| Jul 20 | 91°F | 64°F | 102°F 1989 | 48°F 1991 | 11% | 0% |
| Jul 21 | 91°F | 64°F | 103°F 1960 | 49°F 1949 | 11% | 0% |
| Jul 22 | 91°F | 64°F | 102°F 1962 | 45°F 1978 | 12% | 0% |
| Jul 23 | 91°F | 64°F | 103°F 1952 | 47°F 1978 | 12% | 0% |
| Jul 24 | 91°F | 64°F | 105°F 1952 | 48°F 1979 | 12% | 0% |
| Jul 25 | 91°F | 64°F | 101°F 2026 | 49°F 1993 | 12% | 0% |
| Jul 26 | 91°F | 64°F | 104°F 2026 | 52°F 1985 | 12% | 0% |
| Jul 27 | 91°F | 64°F | 106°F 1960 | 44°F 1993 | 12% | 0% |
| Jul 28 | 91°F | 64°F | 104°F 1960 | 50°F 1986 | 12% | 0% |
| Jul 29 | 91°F | 64°F | 102°F 1960 | 50°F 2015 | 12% | 0% |
| Jul 30 | 91°F | 64°F | 103°F 1966 | 46°F 1950 | 12% | 0% |
| Jul 31 | 91°F | 64°F | 102°F 2026 | 46°F 1950 | 12% | 0% |
Chance of rain
- Chance of a wet day
- Chance of snowfall
Sunrise and sunset
Times for 2026, local time (MDT).
- July 1
- sunrise 6:04 AM, sunset 9:01 PM
- July 31
- sunrise 6:26 AM, sunset 8:43 PM
Other months
Sources
Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00427686 (Santaquin Chlorinator), public domain. Records: NOAA GHCN-Daily, station USC00426135, 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.