Barstow weather in May: Barstow, California: normal highs, lows, rain and records for May
Barstow in May has a normal high of 89°F and a normal low of 60°F, a daily mean of 74°F, rising from 84°F on the 1st to 94°F by the 31st. Measurable precipitation falls on 1 days in a normal May, 0.05 inches in all. (NOAA 1991-2020 normals)
In metric: a normal high of 32°C and low of 15°C, 1 mm of precipitation in May.
- NOAA stationBarstow Daggett Airport
- Station IDUSW00023161
- Location34.85°N 116.79°W
- Elevation1,917 ft (584 m)
- Population24,897
- Jan 61° 36°
- Feb 66° 40°
- Mar 73° 46°
- Apr 80° 51°
- May 89° 60°
- Jun 99° 68°
- Jul 105° 74°
- Aug 104° 73°
- Sep 96° 66°
- Oct 83° 54°
- Nov 70° 43°
- Dec 60° 35°
Each month: normal high (large) and low, °F. Fill: the month's normal mean, colder blue to hotter red.
How warm is Barstow in May?
The normal high is 89°F and the normal low 60°F, for a daily mean of 74.2°F. May is 8.8°F warmer than April and 9.4°F cooler than June. May is the 5th warmest month of the year in Barstow and the 11th wettest. Across the month the normal high rises 10°F, from 84°F on May 1 to 94°F on May 31. From one year to the next May's mean temperature typically moves about 3.8°F either way (NOAA's standard deviation), so roughly two Mays in three average between 70°F and 78°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 4%).
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in |
|---|---|---|---|---|
| May 1 | 84°F | 55°F | 4% | 1% |
| May 8 | 86°F | 57°F | 3% | 1% |
| May 15 | 89°F | 59°F | 3% | 1% |
| May 22 | 91°F | 61°F | 3% | 0% |
| May 31 | 94°F | 64°F | 2% | 0% |
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 | 84°F | 55°F | 4% | 1% | 13 h 30 min |
| May 2 | 84°F | 56°F | 4% | 1% | 13 h 40 min |
| May 3 | 84°F | 56°F | 4% | 1% | 13 h 40 min |
| May 4 | 85°F | 56°F | 4% | 1% | 13 h 40 min |
| May 5 | 85°F | 57°F | 4% | 1% | 13 h 40 min |
| May 6 | 85°F | 57°F | 4% | 1% | 13 h 40 min |
| May 7 | 86°F | 57°F | 3% | 1% | 13 h 40 min |
| May 8 | 86°F | 57°F | 3% | 1% | 13 h 50 min |
| May 9 | 86°F | 58°F | 3% | 1% | 13 h 50 min |
| May 10 | 87°F | 58°F | 3% | 1% | 13 h 50 min |
| May 11 | 87°F | 58°F | 3% | 1% | 13 h 50 min |
| May 12 | 87°F | 59°F | 3% | 1% | 13 h 50 min |
| May 13 | 88°F | 59°F | 3% | 1% | 13 h 50 min |
| May 14 | 88°F | 59°F | 3% | 1% | 14 h |
| May 15 | 89°F | 59°F | 3% | 1% | 14 h |
| May 16 | 89°F | 60°F | 3% | 0% | 14 h |
| May 17 | 89°F | 60°F | 3% | 0% | 14 h |
| May 18 | 90°F | 60°F | 3% | 0% | 14 h |
| May 19 | 90°F | 60°F | 3% | 0% | 14 h |
| May 20 | 90°F | 61°F | 3% | 0% | 14 h 10 min |
| May 21 | 91°F | 61°F | 3% | 0% | 14 h 10 min |
| May 22 | 91°F | 61°F | 3% | 0% | 14 h 10 min |
| May 23 | 92°F | 61°F | 2% | 0% | 14 h 10 min |
| May 24 | 92°F | 62°F | 2% | 0% | 14 h 10 min |
| May 25 | 92°F | 62°F | 2% | 0% | 14 h 10 min |
| May 26 | 93°F | 62°F | 2% | 0% | 14 h 10 min |
| May 27 | 93°F | 63°F | 2% | 0% | 14 h 10 min |
| May 28 | 93°F | 63°F | 2% | 0% | 14 h 20 min |
| May 29 | 94°F | 63°F | 2% | 0% | 14 h 20 min |
| May 30 | 94°F | 63°F | 2% | 0% | 14 h 20 min |
| May 31 | 94°F | 64°F | 2% | 0% | 14 h 20 min |
- Normal high
- 89°FMay average
- Normal low
- 60°FMay average
- Precipitation
- 0.05 inmonth total
- Days with precipitation
- 10.01 inch or more
- Days at 90°F or more
- 17
- Daylight
- 13 h 30 min to 14 h 20 minMay 1 to May 31
- Days at 70°F or more
- 30
- Days at 80°F or more
- 26
- Sunshine
- 95%of clear-sky sunlight (NASA)
Source: NOAA NCEI 1991-2020 daily normals, station USW00023161; monthly normals. Daylight is computed from the place's latitude with NOAA's solar equations.
Does it rain in Barstow in May?
On a given May day the chance of 0.01 inch or more is 3% on average, highest around May 1 (4%). In all, 0.05 in falls on 1 days of a normal May.
In a normal May in Barstow, 17 days reach 90°F.
Source: NOAA NCEI 1991-2020 daily and monthly normals, station USW00023161.
How humid and windy is Barstow in May?
At 3 p.m. the normal temperature is 93°F with 12% relative humidity and a dew point of 33°F; at 6 a.m. it is 67°F with 37% humidity. The wind averages 14.2 mph, most often from the west in the afternoon. A dew point under 50°F feels dry.
| Time | Temperature | Dew point | Humidity | Wind | Clear or few clouds |
|---|---|---|---|---|---|
| 6 a.m. | 67°F | 40°F | 37% | 12.5 mph | 89% |
| 9 a.m. | 80°F | 39°F | 24% | 13.9 mph | 88% |
| noon | 89°F | 35°F | 15% | 11.6 mph | 87% |
| 3 p.m. | 93°F | 33°F | 12% | 13.8 mph | 87% |
| 6 p.m. | 88°F | 34°F | 15% | 17.1 mph | 85% |
| 9 p.m. | 78°F | 38°F | 23% | 16.7 mph | 87% |
Source: NOAA NCEI 1991-2020 hourly normals, station USW00023161. 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 Barstow?
The warmest May temperature on this station's record (since 1943) is 111°F, on May 28, 2003; the coldest is 40°F, on May 8, 1950. The wettest May brought 0.60 in (1987).
The May mean against the 1991-2020 normal of 74.2°F: 2021 76.8°F (+2.6), 2022 75.3°F (+1.1), 2023 73.8°F (−0.4), 2024 75.1°F (+0.9), 2025 76.8°F (+2.6), 2026 75.0°F (+0.8). 5 of 6 ran warmer than normal.
| May | Mean | Against normal | Precip. |
|---|---|---|---|
| 2021 | 76.8°F | +2.6°F | 0.00 in |
| 2022 | 75.3°F | +1.1°F | 0.00 in |
| 2023 | 73.8°F | −0.4°F | 0.01 in |
| 2024 | 75.1°F | +0.9°F | 0.00 in |
| 2025 | 76.8°F | +2.6°F | 0.29 in |
| 2026 | 75.0°F | +0.8°F | 0.00 in |
Source: records: ACIS, station USW00023161; recent months: ACIS, station USW00023161. Records and recent months use complete months only.
How does May in Barstow 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; Barstow's is 89°F.
Source: NOAA NCEI 1991-2020 monthly normals for every station in the state.