Eureka Weather in July
Average highs run from 81°F on July 1 to 90°F on July 31, and lows from 51°F to 54°F. Normal precipitation for the month is 1.13 in over about 7 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
- 87°F
- Average low
- 53°F
- Precipitation
- 1.13 in
- Record high
- 104°FJul 19, 1960
- Record low
- 30°FJul 3, 1999
- Chance of a freeze
- 0%
- Days of 90°F or more
- 11.4
- Daylight
- 16 h 06 min to 15 h 08 min
- Cloud cover
- 49%
- Humidity
- 65%
- Dew point
- 47°F
- Wind
- 4.0 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 | 81°F | 51°F | 96°F 2013 | 35°F 1949 | 29% | 0% |
| Jul 2 | 82°F | 51°F | 95°F 1924 | 32°F 1973 | 29% | 0% |
| Jul 3 | 82°F | 51°F | 97°F 2015 | 30°F 1999 | 28% | 0% |
| Jul 4 | 83°F | 51°F | 99°F 2015 | 32°F 1962 | 28% | 0% |
| Jul 5 | 83°F | 51°F | 99°F 1896 | 32°F 2000 | 27% | 0% |
| Jul 6 | 83°F | 51°F | 102°F 2007 | 36°F 1952 | 27% | 0% |
| Jul 7 | 84°F | 52°F | 98°F 2017 | 31°F 1971 | 26% | 0% |
| Jul 8 | 84°F | 52°F | 96°F 2017 | 37°F 1957 | 26% | 0% |
| Jul 9 | 85°F | 52°F | 96°F 1968 | 37°F 1981 | 25% | 0% |
| Jul 10 | 85°F | 52°F | 102°F 1973 | 37°F 1967 | 25% | 0% |
| Jul 11 | 85°F | 52°F | 97°F 2024 | 38°F 1978 | 24% | 0% |
| Jul 12 | 86°F | 52°F | 100°F 1940 | 37°F 1973 | 24% | 0% |
| Jul 13 | 86°F | 53°F | 99°F 2002 | 37°F 1969 | 23% | 0% |
| Jul 14 | 87°F | 53°F | 98°F 2007 | 37°F 1969 | 23% | 0% |
| Jul 15 | 87°F | 53°F | 96°F 1973 | 38°F 1913 | 22% | 0% |
| Jul 16 | 87°F | 53°F | 99°F 1919 | 35°F 1968 | 22% | 0% |
| Jul 17 | 88°F | 53°F | 100°F 1941 | 34°F 2001 | 22% | 0% |
| Jul 18 | 88°F | 53°F | 99°F 1960 | 33°F 1962 | 21% | 0% |
| Jul 19 | 88°F | 53°F | 104°F 1960 | 36°F 2001 | 21% | 0% |
| Jul 20 | 88°F | 54°F | 99°F 1979 | 36°F 2019 | 20% | 0% |
| Jul 21 | 89°F | 54°F | 100°F 2024 | 36°F 1996 | 20% | 0% |
| Jul 22 | 89°F | 54°F | 98°F 1936 | 37°F 1967 | 20% | 0% |
| Jul 23 | 89°F | 54°F | 101°F 2003 | 35°F 1963 | 19% | 0% |
| Jul 24 | 89°F | 54°F | 99°F 2023 | 37°F 1960 | 19% | 0% |
| Jul 25 | 89°F | 54°F | 97°F 1931 | 38°F 1949 | 19% | 0% |
| Jul 26 | 89°F | 54°F | 97°F 1984 | 34°F 1969 | 19% | 0% |
| Jul 27 | 89°F | 54°F | 100°F 1975 | 40°F 1908 | 18% | 0% |
| Jul 28 | 90°F | 54°F | 101°F 1934 | 39°F 1954 | 18% | 0% |
| Jul 29 | 90°F | 54°F | 98°F 1934 | 33°F 1959 | 18% | 0% |
| Jul 30 | 90°F | 54°F | 99°F 1960 | 35°F 2001 | 18% | 0% |
| Jul 31 | 90°F | 54°F | 101°F 2021 | 34°F 2008 | 17% | 0% |
Chance of rain
- Chance of a wet day
- Chance of snowfall
Sunrise and sunset
Times for 2026, local time (MDT).
- July 1
- sunrise 5:41 AM, sunset 9:47 PM
- July 31
- sunrise 6:12 AM, sunset 9:20 PM
Other months
Sources
Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00242827 (Eureka RS), public domain. Records: NOAA GHCN-Daily, station USC00244558, 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.