Fairfield, CA weather in July
In July, Fairfield sees highs around 90°F and lows around 58°F: hot and dry. Rain is rare. It is one of the warmest months in Fairfield.
- Normal high
- 90°F
- Normal low
- 58°F
- Wet days
- 0
- 0.0 in total
- Muggy days
- 0
- dew point 65°F+
How July changes from start to finish
| July 1 | July 31 | |
|---|---|---|
| Normal high | 89°F | 90°F |
| Normal low | 57°F | 58°F |
| Chance of a wet day | 1% | 0% |
| Sunrise / sunset | 5:48 am / 8:35 pm | 6:09 am / 8:19 pm |
| Daylight | 14.8 h | 14.2 h |
Chance of a wet day: average for the first and last 7 days of the month. Times are local clock time (Pacific Time).
A typical July day
- 6 am60°Fdew point 53°F
- 9 am71°Fdew point 54°F
- Noon83°Fdew point 54°F
- 3 pm88°Fdew point 53°F
- 6 pm79°Fdew point 54°F
- 9 pm66°Fdew point 53°F
NOAA hourly normals (local standard time) from Travis AFB (6 mi away); average wind 18 mph; clear or few clouds in 90% of daytime hours, mostly cloudy or overcast in 5%.
What kind of days to expect
- Comfortable dayshigh 65-80°F and dew point under 60°F4 of 31
- Hot dayshigh 90°F or more15 of 31
- Muggy daysdaily mean dew point 65°F or more0 of 31
- Wet daysat least 0.01 in of rain or melted snow0 of 31
- Notable rainat least 0.10 in0 of 31
- Freezing nightslow 32°F or below0 of 31
Average days per July, counted from daily records for each year 1991-2020.
Rain in July
Normal precipitation is 0.0 in; a dry July brings about 0.0 in and a wet one about 0.0 in (25th and 75th percentiles). Days with half an inch or more are rare.
How July varies from year to year
- Warmest July, 1991-20202006: average high 95°F
- Coolest July2000: average high 86°F
- Wettest July2015: 0.04 in
- Driest July1991: no measurable precipitation
- Highest reading114°F (July 24, 2006)
- Lowest reading44°F (July 16, 2012)
From the station's daily records with NOAA quality flags removed; most recent date shown when a reading repeats.
July compared with June and August
| June | July | August | |
|---|---|---|---|
| Normal high | 85°F | 90°F | 89°F |
| Normal low | 56°F | 58°F | 58°F |
| Wet days | 1 | 0 | 0 |
| Comfortable days | 10 | 4 | 4 |
| Daylight | 14.8 h | 14.5 h | 13.6 h |
Highs change by +5°F from June and -1°F into August.
Nearby alternatives in July
- Warmer: Stockton, CA45 mi · high 95°F · 0 wet days
- Cooler: Napa, CA14 mi · high 83°F · 0 wet days
How Fairfield ranks in July
- Normal high151st warmest of 378 cities; 26th of 60 in California
- Wet days3rd driest of 378
- Comfortable days134th most of 340
What to pack for Fairfield in July
- Light, breathable clothing – highs near 90°F
- Layers – afternoons near 90°F but nights near 58°F
- Sunglasses and sunscreen – about 14.5 hours of daylight and highs near 90°F
Heating and cooling
July has 2 heating degree days and 273 cooling degree days (base 65°F), 8% of the year's total heating and cooling demand.
Questions
How hot is Fairfield in July?
The normal high is 90°F and the normal low is 58°F. From 1991 to 2020 the hottest July reading was 114°F (July 24, 2006).
Does it rain a lot in Fairfield in July?
About 0 days in July have at least 0.01 in of precipitation, and the normal total is 0.00 in. The wettest July in 1991-2020 was in 2015 (0.04 in); the driest was in 1991, with no measurable precipitation.
Is July a good time to visit Fairfield?
July ranks 8th of 12 months on our comfort score for Fairfield (54 out of 100). It has about 4 comfortable days and about 15 days at 90°F or hotter. The best months are April and May.
Where the numbers come from
- Temperature, rain, snowfall, snow depth and frost dates: Fairfield (USC00042934), 2.3 mi NW of the city center, 40 ft . NOAA normals and daily records, 1991-2020.
- Humidity and wind by hour and cloud cover: Travis AFB (USW00023202), 5.9 mi ENE of the city center, 59 ft . NOAA normals and daily records, 1991-2020.
- Daily humidity and wind: Travis Air Force Base (745160-23202), 5.9 mi ENE of the city center, 62 ft . Hourly observations, 1991-2020.