Napa weather in June: Napa, California: normal highs, lows, rain and records for June
Napa in June has a normal high of 78°F and a normal low of 52°F, a daily mean of 65°F, rising from 76°F on the 1st to 79°F by the 30th. Measurable precipitation falls on 1 days in a normal June, 0.22 inches in all. (NOAA 1991-2020 normals)
In metric: a normal high of 26°C and low of 11°C, 6 mm of precipitation in June.
- NOAA stationNapa County Airport
- Station IDUSW00093227
- Location38.21°N 122.28°W
- Elevation14 ft (4 m)
- Population76,921
- Jan 57° 38°
- Feb 61° 40°
- Mar 64° 42°
- Apr 68° 44°
- May 73° 48°
- Jun 78° 52°
- Jul 79° 55°
- Aug 80° 54°
- Sep 80° 51°
- Oct 75° 46°
- Nov 65° 40°
- Dec 57° 38°
Each month: normal high (large) and low, °F. Fill: the month's normal mean, colder blue to hotter red.
How warm is Napa in June?
The normal high is 78°F and the normal low 52°F, for a daily mean of 65.1°F. June is 4.6°F warmer than May and 1.6°F cooler than July. June is the 4th warmest month of the year in Napa and the 9th wettest. Across the month the normal high rises 3°F, from 76°F on June 1 to 79°F on June 30. From one year to the next June's mean temperature typically moves about 1.7°F either way (NOAA's standard deviation), so roughly two Junes in three average between 63°F and 67°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 7%).
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in |
|---|---|---|---|---|
| June 1 | 76°F | 50°F | 7% | 3% |
| June 8 | 78°F | 51°F | 5% | 2% |
| June 15 | 79°F | 52°F | 3% | 1% |
| June 22 | 79°F | 53°F | 2% | 1% |
| June 30 | 79°F | 54°F | 1% | 1% |
Every day of June: normal high, low and chance of precipitation (warmest afternoon June 24, coldest night June 1)
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in | Daylight |
|---|---|---|---|---|---|
| June 1 | 76°F | 50°F | 7% | 3% | 14 h 40 min |
| June 2 | 76°F | 50°F | 6% | 3% | 14 h 40 min |
| June 3 | 77°F | 50°F | 6% | 3% | 14 h 40 min |
| June 4 | 77°F | 50°F | 6% | 3% | 14 h 40 min |
| June 5 | 77°F | 51°F | 6% | 3% | 14 h 40 min |
| June 6 | 77°F | 51°F | 6% | 3% | 14 h 40 min |
| June 7 | 77°F | 51°F | 5% | 3% | 14 h 40 min |
| June 8 | 78°F | 51°F | 5% | 2% | 14 h 40 min |
| June 9 | 78°F | 51°F | 5% | 2% | 14 h 40 min |
| June 10 | 78°F | 51°F | 5% | 2% | 14 h 50 min |
| June 11 | 78°F | 51°F | 4% | 2% | 14 h 50 min |
| June 12 | 78°F | 51°F | 4% | 2% | 14 h 50 min |
| June 13 | 78°F | 52°F | 4% | 2% | 14 h 50 min |
| June 14 | 78°F | 52°F | 4% | 2% | 14 h 50 min |
| June 15 | 79°F | 52°F | 3% | 1% | 14 h 50 min |
| June 16 | 79°F | 52°F | 3% | 1% | 14 h 50 min |
| June 17 | 79°F | 52°F | 3% | 1% | 14 h 50 min |
| June 18 | 79°F | 52°F | 3% | 1% | 14 h 50 min |
| June 19 | 79°F | 52°F | 3% | 1% | 14 h 50 min |
| June 20 | 79°F | 52°F | 3% | 1% | 14 h 50 min |
| June 21 | 79°F | 53°F | 2% | 1% | 14 h 50 min |
| June 22 | 79°F | 53°F | 2% | 1% | 14 h 50 min |
| June 23 | 79°F | 53°F | 2% | 1% | 14 h 50 min |
| June 24 | 79°F | 53°F | 2% | 1% | 14 h 50 min |
| June 25 | 79°F | 53°F | 2% | 1% | 14 h 50 min |
| June 26 | 79°F | 53°F | 2% | 1% | 14 h 50 min |
| June 27 | 79°F | 53°F | 2% | 1% | 14 h 50 min |
| June 28 | 79°F | 53°F | 2% | 1% | 14 h 50 min |
| June 29 | 79°F | 53°F | 2% | 1% | 14 h 50 min |
| June 30 | 79°F | 54°F | 1% | 1% | 14 h 50 min |
- Normal high
- 78°FJune average
- Normal low
- 52°FJune average
- Precipitation
- 0.22 inmonth total
- Days with precipitation
- 10.01 inch or more
- Days at 90°F or more
- 3
- Daylight
- 14 h 40 min to 14 h 50 minJune 1 to June 30
- Days at 70°F or more
- 27
- Days at 80°F or more
- 11
- Sunshine
- 93%of clear-sky sunlight (NASA)
Source: NOAA NCEI 1991-2020 daily normals, station USW00093227; monthly normals. Daylight is computed from the place's latitude with NOAA's solar equations.
Does it rain in Napa in June?
On a given June day the chance of 0.01 inch or more is 4% on average, highest around June 1 (7%). In all, 0.22 in falls on 1 days of a normal June.
In a normal June in Napa, 3 days reach 90°F.
Source: NOAA NCEI 1991-2020 daily and monthly normals, station USW00093227.
What are the records for June in Napa?
The warmest June temperature on this station's record (since 1998) is 110°F, on June 14, 2000; the coldest is 36°F, on June 8, 1999. The wettest June brought 2.22 in (2011).
The June mean against the 1991-2020 normal of 65.1°F: 2021 65.6°F (+0.5), 2022 67.1°F (+2.0), 2023 63.3°F (−1.8), 2024 65.5°F (+0.4), 2025 62.8°F (−2.3), 2026 65.3°F (+0.3). 4 of 6 ran warmer than normal.
| June | Mean | Against normal | Precip. |
|---|---|---|---|
| 2021 | 65.6°F | +0.5°F | 0.02 in |
| 2022 | 67.1°F | +2.0°F | 0.27 in |
| 2023 | 63.3°F | −1.8°F | 0.02 in |
| 2024 | 65.5°F | +0.4°F | 0.00 in |
| 2025 | 62.8°F | −2.3°F | 0.00 in |
| 2026 | 65.3°F | +0.3°F | 0.00 in |
Source: records: ACIS, station USW00093227; recent months: ACIS, station USW00093227. Records and recent months use complete months only.
How does June in Napa compare across California?
Across the 219 places PlainClimate covers in California, June normal highs run from 61°F in Bodega to 106°F in Needles; Napa's is 78°F.
Source: NOAA NCEI 1991-2020 monthly normals for every station in the state.