Irvine weather in May: Irvine, California: normal highs, lows, rain and records for May
Irvine in May has a normal high of 79°F and a normal low of 56°F, a daily mean of 67°F, holding near 79°F all month. Measurable precipitation falls on 2 days in a normal May, 0.34 inches in all. (NOAA 1991-2020 normals)
In metric: a normal high of 26°C and low of 13°C, 9 mm of precipitation in May.
- NOAA stationIrvine Ranch
- Station IDUSC00044303
- Location33.72°N 117.72°W
- Elevation540 ft (165 m)
- From the center4 miles
- Population318,683
- Jan 69° 49°
- Feb 71° 48°
- Mar 73° 50°
- Apr 76° 52°
- May 79° 56°
- Jun 83° 59°
- Jul 88° 62°
- Aug 90° 62°
- Sep 89° 62°
- Oct 84° 58°
- Nov 76° 53°
- Dec 68° 48°
Each month: normal high (large) and low, °F. Fill: the month's normal mean, colder blue to hotter red.
How warm is Irvine in May?
The normal high is 79°F and the normal low 56°F, for a daily mean of 67.4°F. May is 3.3°F warmer than April and 3.2°F cooler than June. May is the 6th warmest month of the year in Irvine and the 8th wettest. Across the month the normal high rises 1°F, from 79°F on May 1 to 80°F on May 31. From one year to the next May's mean temperature typically moves about 2.4°F either way (NOAA's standard deviation), so roughly two Mays in three average between 65°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 6%).
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in |
|---|---|---|---|---|
| May 1 | 79°F | 54°F | 6% | 5% |
| May 8 | 79°F | 55°F | 6% | 5% |
| May 15 | 80°F | 56°F | 5% | 4% |
| May 22 | 80°F | 56°F | 4% | 4% |
| May 31 | 80°F | 57°F | 3% | 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 | 79°F | 54°F | 6% | 5% | 13 h 30 min |
| May 2 | 79°F | 54°F | 6% | 5% | 13 h 30 min |
| May 3 | 79°F | 54°F | 6% | 5% | 13 h 30 min |
| May 4 | 79°F | 54°F | 6% | 5% | 13 h 40 min |
| May 5 | 79°F | 54°F | 6% | 5% | 13 h 40 min |
| May 6 | 79°F | 54°F | 6% | 5% | 13 h 40 min |
| May 7 | 79°F | 54°F | 6% | 5% | 13 h 40 min |
| May 8 | 79°F | 55°F | 6% | 5% | 13 h 40 min |
| May 9 | 79°F | 55°F | 6% | 5% | 13 h 40 min |
| May 10 | 79°F | 55°F | 6% | 5% | 13 h 50 min |
| May 11 | 79°F | 55°F | 6% | 4% | 13 h 50 min |
| May 12 | 79°F | 55°F | 6% | 4% | 13 h 50 min |
| May 13 | 79°F | 55°F | 5% | 4% | 13 h 50 min |
| May 14 | 79°F | 55°F | 5% | 4% | 13 h 50 min |
| May 15 | 80°F | 56°F | 5% | 4% | 13 h 50 min |
| May 16 | 80°F | 56°F | 5% | 4% | 13 h 50 min |
| May 17 | 80°F | 56°F | 5% | 4% | 14 h |
| May 18 | 80°F | 56°F | 5% | 4% | 14 h |
| May 19 | 80°F | 56°F | 5% | 4% | 14 h |
| May 20 | 80°F | 56°F | 5% | 4% | 14 h |
| May 21 | 80°F | 56°F | 4% | 4% | 14 h |
| May 22 | 80°F | 56°F | 4% | 4% | 14 h |
| May 23 | 80°F | 56°F | 4% | 3% | 14 h |
| May 24 | 80°F | 57°F | 4% | 3% | 14 h 10 min |
| May 25 | 80°F | 57°F | 4% | 3% | 14 h 10 min |
| May 26 | 80°F | 57°F | 4% | 3% | 14 h 10 min |
| May 27 | 80°F | 57°F | 3% | 3% | 14 h 10 min |
| May 28 | 80°F | 57°F | 3% | 3% | 14 h 10 min |
| May 29 | 80°F | 57°F | 3% | 3% | 14 h 10 min |
| May 30 | 80°F | 57°F | 3% | 2% | 14 h 10 min |
| May 31 | 80°F | 57°F | 3% | 2% | 14 h 10 min |
- Normal high
- 79°FMay average
- Normal low
- 56°FMay average
- Precipitation
- 0.34 inmonth total
- Days with precipitation
- 20.01 inch or more
- Days at 90°F or more
- 3
- Daylight
- 13 h 30 min to 14 h 10 minMay 1 to May 31
- Days at 70°F or more
- 29
- Days at 80°F or more
- 12
- Sunshine
- 83%of clear-sky sunlight (NASA)
Source: NOAA NCEI 1991-2020 daily normals, station USC00044303; monthly normals. Daylight is computed from the place's latitude with NOAA's solar equations.
Does it rain in Irvine in May?
On a given May day the chance of 0.01 inch or more is 5% on average, highest around May 1 (6%). In all, 0.34 in falls on 2 days of a normal May.
In a normal May in Irvine, 3 days reach 90°F.
Source: NOAA NCEI 1991-2020 daily and monthly normals, station USC00044303.
What are the records for May in Irvine?
The May mean against the 1991-2020 normal of 67.4°F: 2021 67.3°F (−0.1), 2022 66.1°F (−1.3), 2023 61.1°F (−6.3), 2024 64.9°F (−2.5), 2025 67.2°F (−0.2), 2026 65.2°F (−2.2). 0 of 6 ran warmer than normal.
| May | Mean | Against normal | Precip. |
|---|---|---|---|
| 2021 | 67.3°F | −0.1°F | 0.00 in |
| 2022 | 66.1°F | −1.3°F | 0.00 in |
| 2023 | 61.1°F | −6.3°F | 1.58 in |
| 2024 | 64.9°F | −2.5°F | 0.17 in |
| 2025 | 67.2°F | −0.2°F | 0.17 in |
| 2026 | 65.2°F | −2.2°F | 0.03 in |
Source: recent months: ACIS, station USC00044303. Records and recent months use complete months only.
How does May in Irvine 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; Irvine's is 79°F.
Source: NOAA NCEI 1991-2020 monthly normals for every station in the state.