Antioch weather in May: Antioch, California: normal highs, lows, rain and records for May
Antioch in May has a normal high of 79°F and a normal low of 54°F, a daily mean of 67°F, rising from 76°F on the 1st to 82°F by the 31st. Measurable precipitation falls on 3 days in a normal May, 0.38 inches in all. (NOAA 1991-2020 normals)
In metric: a normal high of 26°C and low of 12°C, 10 mm of precipitation in May.
- NOAA stationAntioch Pumping Plant #3
- Station IDUSC00040232
- Location37.98°N 121.75°W
- Elevation60 ft (18 m)
- From the center2 miles
- Population118,453
- Jan 56° 40°
- Feb 61° 44°
- Mar 67° 47°
- Apr 72° 50°
- May 79° 54°
- Jun 86° 59°
- Jul 91° 61°
- Aug 90° 60°
- Sep 87° 59°
- Oct 78° 54°
- Nov 65° 46°
- Dec 56° 40°
Each month: normal high (large) and low, °F. Fill: the month's normal mean, colder blue to hotter red.
How warm is Antioch in May?
The normal high is 79°F and the normal low 54°F, for a daily mean of 66.6°F. May is 5.8°F warmer than April and 6.0°F cooler than June. May is the 5th warmest month of the year in Antioch and the 8th wettest. Across the month the normal high rises 6°F, from 76°F on May 1 to 82°F on May 31. From one year to the next May's mean temperature typically moves about 3.0°F either way (NOAA's standard deviation), so roughly two Mays in three average between 64°F and 70°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 10%).
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in |
|---|---|---|---|---|
| May 1 | 76°F | 52°F | 10% | 4% |
| May 8 | 77°F | 53°F | 9% | 4% |
| May 15 | 79°F | 54°F | 8% | 4% |
| May 22 | 80°F | 55°F | 7% | 3% |
| May 31 | 82°F | 57°F | 5% | 2% |
Every day of May: normal high, low and chance of precipitation (warmest afternoon May 31, coldest night May 1)
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in | Daylight |
|---|---|---|---|---|---|
| May 1 | 76°F | 52°F | 10% | 4% | 13 h 40 min |
| May 2 | 76°F | 52°F | 10% | 4% | 13 h 50 min |
| May 3 | 76°F | 52°F | 10% | 4% | 13 h 50 min |
| May 4 | 76°F | 52°F | 10% | 4% | 13 h 50 min |
| May 5 | 77°F | 52°F | 9% | 4% | 13 h 50 min |
| May 6 | 77°F | 53°F | 9% | 4% | 13 h 50 min |
| May 7 | 77°F | 53°F | 9% | 4% | 14 h |
| May 8 | 77°F | 53°F | 9% | 4% | 14 h |
| May 9 | 78°F | 53°F | 9% | 4% | 14 h |
| May 10 | 78°F | 53°F | 9% | 4% | 14 h |
| May 11 | 78°F | 53°F | 9% | 4% | 14 h |
| May 12 | 78°F | 54°F | 8% | 4% | 14 h 10 min |
| May 13 | 78°F | 54°F | 8% | 4% | 14 h 10 min |
| May 14 | 79°F | 54°F | 8% | 4% | 14 h 10 min |
| May 15 | 79°F | 54°F | 8% | 4% | 14 h 10 min |
| May 16 | 79°F | 54°F | 8% | 4% | 14 h 10 min |
| May 17 | 79°F | 55°F | 8% | 4% | 14 h 20 min |
| May 18 | 79°F | 55°F | 8% | 4% | 14 h 20 min |
| May 19 | 80°F | 55°F | 7% | 3% | 14 h 20 min |
| May 20 | 80°F | 55°F | 7% | 3% | 14 h 20 min |
| May 21 | 80°F | 55°F | 7% | 3% | 14 h 20 min |
| May 22 | 80°F | 55°F | 7% | 3% | 14 h 20 min |
| May 23 | 81°F | 56°F | 7% | 3% | 14 h 20 min |
| May 24 | 81°F | 56°F | 6% | 3% | 14 h 30 min |
| May 25 | 81°F | 56°F | 6% | 3% | 14 h 30 min |
| May 26 | 81°F | 56°F | 6% | 3% | 14 h 30 min |
| May 27 | 81°F | 56°F | 6% | 3% | 14 h 30 min |
| May 28 | 82°F | 56°F | 6% | 3% | 14 h 30 min |
| May 29 | 82°F | 57°F | 5% | 2% | 14 h 30 min |
| May 30 | 82°F | 57°F | 5% | 2% | 14 h 30 min |
| May 31 | 82°F | 57°F | 5% | 2% | 14 h 40 min |
- Normal high
- 79°FMay average
- Normal low
- 54°FMay average
- Precipitation
- 0.38 inmonth total
- Days with precipitation
- 30.01 inch or more
- Days at 90°F or more
- 4
- Daylight
- 13 h 40 min to 14 h 40 minMay 1 to May 31
- Days at 70°F or more
- 27
- Days at 80°F or more
- 14
- Sunshine
- 90%of clear-sky sunlight (NASA)
Source: NOAA NCEI 1991-2020 daily normals, station USC00040232; monthly normals. Daylight is computed from the place's latitude with NOAA's solar equations.
Does it rain in Antioch in May?
On a given May day the chance of 0.01 inch or more is 8% on average, highest around May 1 (10%). In all, 0.38 in falls on 3 days of a normal May.
In a normal May in Antioch, 4 days reach 90°F.
Source: NOAA NCEI 1991-2020 daily and monthly normals, station USC00040232.
What are the records for May in Antioch?
The warmest May temperature on this station's record (since 1955) is 103°F, on May 29, 1984; the coldest is 35°F, on May 12, 1961. The wettest May brought 2.09 in (1998).
The May mean against the 1991-2020 normal of 66.6°F: 2021 69.6°F (+3.0). 1 of 1 ran warmer than normal.
| May | Mean | Against normal | Precip. |
|---|---|---|---|
| 2021 | 69.6°F | +3.0°F | 0.00 in |
Source: records: ACIS, station USC00040232; recent months: ACIS, station USC00040232. Records and recent months use complete months only.
How does May in Antioch compare across California?
Across the 219 places PlainClimate covers in California, May normal highs run from 58°F in Tahoma to 96°F in Needles; Antioch's is 79°F.
Source: NOAA NCEI 1991-2020 monthly normals for every station in the state.