Santa Maria weather in May: Santa Maria, California: normal highs, lows, rain and records for May
Santa Maria in May has a normal high of 69°F and a normal low of 49°F, a daily mean of 59°F, holding near 69°F all month. Measurable precipitation falls on 2 days in a normal May, 0.36 inches in all. (NOAA 1991-2020 normals)
In metric: a normal high of 21°C and low of 9°C, 9 mm of precipitation in May.
- NOAA stationSanta Maria Public Airport
- Station IDUSW00023273
- Location34.90°N 120.45°W
- Elevation242 ft (74 m)
- Population111,346
- Jan 65° 41°
- Feb 65° 43°
- Mar 66° 44°
- Apr 68° 45°
- May 69° 49°
- Jun 71° 52°
- Jul 73° 55°
- Aug 74° 55°
- Sep 75° 54°
- Oct 75° 50°
- Nov 70° 44°
- Dec 64° 40°
Each month: normal high (large) and low, °F. Fill: the month's normal mean, colder blue to hotter red.
How warm is Santa Maria in May?
The normal high is 69°F and the normal low 49°F, for a daily mean of 59.0°F. May is 2.3°F warmer than April and 2.5°F cooler than June. May is the 6th warmest month of the year in Santa Maria and the 8th wettest. Across the month the normal high rises 1°F, from 69°F on May 1 to 70°F on May 31. From one year to the next May's mean temperature typically moves about 2.1°F either way (NOAA's standard deviation), so roughly two Mays in three average between 57°F and 61°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 | 69°F | 47°F | 10% | 4% |
| May 8 | 69°F | 48°F | 9% | 3% |
| May 15 | 69°F | 49°F | 7% | 3% |
| May 22 | 70°F | 49°F | 6% | 2% |
| May 31 | 70°F | 50°F | 4% | 1% |
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 | 69°F | 47°F | 10% | 4% | 13 h 30 min |
| May 2 | 69°F | 47°F | 10% | 4% | 13 h 40 min |
| May 3 | 69°F | 47°F | 10% | 4% | 13 h 40 min |
| May 4 | 69°F | 47°F | 10% | 4% | 13 h 40 min |
| May 5 | 69°F | 47°F | 9% | 4% | 13 h 40 min |
| May 6 | 69°F | 48°F | 9% | 4% | 13 h 40 min |
| May 7 | 69°F | 48°F | 9% | 4% | 13 h 40 min |
| May 8 | 69°F | 48°F | 9% | 3% | 13 h 50 min |
| May 9 | 69°F | 48°F | 8% | 3% | 13 h 50 min |
| May 10 | 69°F | 48°F | 8% | 3% | 13 h 50 min |
| May 11 | 69°F | 48°F | 8% | 3% | 13 h 50 min |
| May 12 | 69°F | 48°F | 8% | 3% | 13 h 50 min |
| May 13 | 69°F | 49°F | 8% | 3% | 13 h 50 min |
| May 14 | 69°F | 49°F | 8% | 3% | 14 h |
| May 15 | 69°F | 49°F | 7% | 3% | 14 h |
| May 16 | 69°F | 49°F | 7% | 3% | 14 h |
| May 17 | 69°F | 49°F | 7% | 3% | 14 h |
| May 18 | 69°F | 49°F | 7% | 3% | 14 h |
| May 19 | 69°F | 49°F | 7% | 2% | 14 h |
| May 20 | 69°F | 49°F | 6% | 2% | 14 h 10 min |
| May 21 | 70°F | 49°F | 6% | 2% | 14 h 10 min |
| May 22 | 70°F | 49°F | 6% | 2% | 14 h 10 min |
| May 23 | 70°F | 50°F | 6% | 2% | 14 h 10 min |
| May 24 | 70°F | 50°F | 6% | 2% | 14 h 10 min |
| May 25 | 70°F | 50°F | 5% | 2% | 14 h 10 min |
| May 26 | 70°F | 50°F | 5% | 2% | 14 h 10 min |
| May 27 | 70°F | 50°F | 5% | 2% | 14 h 10 min |
| May 28 | 70°F | 50°F | 5% | 2% | 14 h 20 min |
| May 29 | 70°F | 50°F | 5% | 2% | 14 h 20 min |
| May 30 | 70°F | 50°F | 5% | 1% | 14 h 20 min |
| May 31 | 70°F | 50°F | 4% | 1% | 14 h 20 min |
- Normal high
- 69°FMay average
- Normal low
- 49°FMay average
- Precipitation
- 0.36 inmonth total
- Days with precipitation
- 20.01 inch or more
- Days at 90°F or more
- 1
- Daylight
- 13 h 30 min to 14 h 20 minMay 1 to May 31
- Days at 70°F or more
- 13
- Days at 80°F or more
- 2
- Sunshine
- 84%of clear-sky sunlight (NASA)
Source: NOAA NCEI 1991-2020 daily normals, station USW00023273; monthly normals. Daylight is computed from the place's latitude with NOAA's solar equations.
Does it rain in Santa Maria in May?
On a given May day the chance of 0.01 inch or more is 7% on average, highest around May 1 (10%). In all, 0.36 in falls on 2 days of a normal May.
In a normal May in Santa Maria, 1 days reach 90°F.
Source: NOAA NCEI 1991-2020 daily and monthly normals, station USW00023273.
How humid and windy is Santa Maria in May?
At 3 p.m. the normal temperature is 66°F with 58% relative humidity and a dew point of 51°F; at 6 a.m. it is 53°F with 90% humidity. The wind averages 8.5 mph, most often from the west-northwest in the afternoon.
| Time | Temperature | Dew point | Humidity | Wind | Clear or few clouds |
|---|---|---|---|---|---|
| 6 a.m. | 53°F | 50°F | 90% | 3.4 mph | – |
| 9 a.m. | 62°F | 51°F | 66% | 7.1 mph | 44% |
| noon | 67°F | 51°F | 56% | 13.7 mph | 66% |
| 3 p.m. | 66°F | 51°F | 58% | 16.1 mph | 68% |
| 6 p.m. | 60°F | 51°F | 71% | 12.9 mph | 64% |
| 9 p.m. | 54°F | 50°F | 87% | 5.4 mph | 62% |
Source: NOAA NCEI 1991-2020 hourly normals, station USW00023273. Hourly normals exist only for NOAA's first-order stations; a dash where NOAA publishes no value for that hour (the sky at some hours).
What are the records for May in Santa Maria?
The warmest May temperature on Santa Maria's official record (since 1906) is 105°F, on May 15, 2014; the coldest is 27°F, on May 4, 1912. The wettest May brought 3.17 in (1998).
The May mean against the 1991-2020 normal of 59.0°F: 2021 57.2°F (−1.8), 2022 57.3°F (−1.7), 2023 57.2°F (−1.8), 2024 57.6°F (−1.4), 2025 58.8°F (−0.2), 2026 59.3°F (+0.3). 1 of 6 ran warmer than normal.
| May | Mean | Against normal | Precip. |
|---|---|---|---|
| 2021 | 57.2°F | −1.8°F | 0.01 in |
| 2022 | 57.3°F | −1.7°F | 0.00 in |
| 2023 | 57.2°F | −1.8°F | 0.29 in |
| 2024 | 57.6°F | −1.4°F | 0.12 in |
| 2025 | 58.8°F | −0.2°F | 0.00 in |
| 2026 | 59.3°F | +0.3°F | 0.06 in |
Source: records: ACIS, NWS threaded record SMXthr; recent months: ACIS, station USW00023273. Records and recent months use complete months only.
How does May in Santa Maria 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; Santa Maria's is 69°F.
Source: NOAA NCEI 1991-2020 monthly normals for every station in the state.