Eureka weather in July: Eureka, California: normal highs, lows, rain and records for July
Eureka in July has a normal high of 63°F and a normal low of 52°F, a daily mean of 58°F, holding near 63°F all month. Measurable precipitation falls on 3 days in a normal July, 0.18 inches in all. (NOAA 1991-2020 normals)
In metric: a normal high of 17°C and low of 11°C, 5 mm of precipitation in July.
- NOAA stationEureka Weather Office Woodley Island
- Station IDUSW00024213
- Location40.81°N 124.16°W
- Elevation20 ft (6 m)
- From the centerunder 1 mile
- Population25,412
- Jan 55° 41°
- Feb 55° 41°
- Mar 56° 42°
- Apr 57° 44°
- May 60° 48°
- Jun 62° 50°
- Jul 63° 52°
- Aug 64° 53°
- Sep 64° 51°
- Oct 62° 47°
- Nov 58° 43°
- Dec 55° 40°
Each month: normal high (large) and low, °F. Fill: the month's normal mean, colder blue to hotter red.
How warm is Eureka in July?
The normal high is 63°F and the normal low 52°F, for a daily mean of 57.7°F. July is 1.7°F warmer than June and 0.8°F cooler than August. July is the 2nd warmest month of the year in Eureka and the 11th wettest. Across the month the normal high rises 1°F, from 63°F on July 1 to 64°F on July 31. From one year to the next July's mean temperature typically moves about 1.7°F either way (NOAA's standard deviation), so roughly two Julys in three average between 56°F and 59°F.
Bars above: each day's normal high to low. Columns below: the chance of 0.01 inch or more of precipitation that day, on a scale of 0 to 100% (highest 13%).
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in |
|---|---|---|---|---|
| July 1 | 63°F | 51°F | 13% | 3% |
| July 8 | 63°F | 52°F | 11% | 2% |
| July 15 | 63°F | 52°F | 11% | 1% |
| July 22 | 63°F | 53°F | 11% | 1% |
| July 31 | 64°F | 53°F | 11% | 1% |
Every day of July: normal high, low and chance of precipitation (warmest afternoon July 29, coldest night July 1)
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in | Daylight |
|---|---|---|---|---|---|
| July 1 | 63°F | 51°F | 13% | 3% | 15 h |
| July 2 | 63°F | 51°F | 13% | 3% | 15 h |
| July 3 | 63°F | 51°F | 12% | 3% | 15 h |
| July 4 | 63°F | 51°F | 12% | 2% | 15 h |
| July 5 | 63°F | 52°F | 12% | 2% | 15 h |
| July 6 | 63°F | 52°F | 12% | 2% | 15 h |
| July 7 | 63°F | 52°F | 11% | 2% | 15 h |
| July 8 | 63°F | 52°F | 11% | 2% | 15 h |
| July 9 | 63°F | 52°F | 11% | 2% | 15 h |
| July 10 | 63°F | 52°F | 11% | 2% | 15 h |
| July 11 | 63°F | 52°F | 11% | 2% | 15 h |
| July 12 | 63°F | 52°F | 11% | 2% | 14 h 50 min |
| July 13 | 63°F | 52°F | 11% | 2% | 14 h 50 min |
| July 14 | 63°F | 52°F | 11% | 2% | 14 h 50 min |
| July 15 | 63°F | 52°F | 11% | 1% | 14 h 50 min |
| July 16 | 63°F | 53°F | 11% | 1% | 14 h 50 min |
| July 17 | 63°F | 53°F | 11% | 1% | 14 h 50 min |
| July 18 | 63°F | 53°F | 11% | 1% | 14 h 50 min |
| July 19 | 63°F | 53°F | 11% | 1% | 14 h 40 min |
| July 20 | 63°F | 53°F | 11% | 1% | 14 h 40 min |
| July 21 | 63°F | 53°F | 11% | 1% | 14 h 40 min |
| July 22 | 63°F | 53°F | 11% | 1% | 14 h 40 min |
| July 23 | 63°F | 53°F | 11% | 1% | 14 h 40 min |
| July 24 | 63°F | 53°F | 11% | 1% | 14 h 40 min |
| July 25 | 63°F | 53°F | 11% | 1% | 14 h 40 min |
| July 26 | 64°F | 53°F | 11% | 1% | 14 h 30 min |
| July 27 | 64°F | 53°F | 11% | 1% | 14 h 30 min |
| July 28 | 64°F | 53°F | 11% | 1% | 14 h 30 min |
| July 29 | 64°F | 53°F | 11% | 1% | 14 h 30 min |
| July 30 | 64°F | 53°F | 11% | 1% | 14 h 30 min |
| July 31 | 64°F | 53°F | 11% | 1% | 14 h 20 min |
- Normal high
- 63°FJuly average
- Normal low
- 52°FJuly average
- Precipitation
- 0.18 inmonth total
- Days with precipitation
- 30.01 inch or more
- Daylight
- 15 h to 14 h 20 minJuly 1 to July 31
- Days at 70°F or more
- 1
- Sunshine
- 78%of clear-sky sunlight (NASA)
Source: NOAA NCEI 1991-2020 daily normals, station USW00024213; monthly normals. Daylight is computed from the place's latitude with NOAA's solar equations.
Does it rain in Eureka in July?
On a given July day the chance of 0.01 inch or more is 11% on average, highest around July 1 (13%). In all, 0.18 in falls on 3 days of a normal July.
Source: NOAA NCEI 1991-2020 daily and monthly normals, station USW00024213.
What are the records for July in Eureka?
The warmest July temperature on Eureka's official record (since 1886) is 77°F, on July 28, 2015; the coldest is 43°F, on July 15, 1887. The wettest July brought 1.34 in (1916).
The July mean against the 1991-2020 normal of 57.7°F: 2021 56.6°F (−1.1), 2022 58.5°F (+0.8), 2023 58.5°F (+0.8), 2024 58.6°F (+0.9), 2025 57.3°F (−0.4), 2026 59.0°F (+1.3). 4 of 6 ran warmer than normal.
| July | Mean | Against normal | Precip. |
|---|---|---|---|
| 2021 | 56.6°F | −1.1°F | 0.21 in |
| 2022 | 58.5°F | +0.8°F | 0.76 in |
| 2023 | 58.5°F | +0.8°F | 0.02 in |
| 2024 | 58.6°F | +0.9°F | 0.05 in |
| 2025 | 57.3°F | −0.4°F | 0.05 in |
| 2026 | 59.0°F | +1.3°F | 0.02 in |
Source: records: ACIS, NWS threaded record EKAthr; recent months: ACIS, station USW00024213. Records and recent months use complete months only.
How does July in Eureka compare across California?
Across the 219 places PlainClimate covers in California, July normal highs run from 62°F in Bodega to 111°F in Needles; Eureka's is 63°F.
Source: NOAA NCEI 1991-2020 monthly normals for every station in the state.