Ramona weather in May: Ramona, California: normal highs, lows, rain and records for May
Ramona in May has a normal high of 76°F and a normal low of 49°F, a daily mean of 62°F, rising from 74°F on the 1st to 78°F by the 31st. Measurable precipitation falls on 4 days in a normal May, 0.41 inches in all. (NOAA 1991-2020 normals)
In metric: a normal high of 24°C and low of 9°C, 10 mm of precipitation in May.
- NOAA stationRamona Airport
- Station IDUSW00053120
- Location33.04°N 116.92°W
- Elevation1,393 ft (425 m)
- Population (census place)22,829
- Jan 66° 37°
- Feb 66° 38°
- Mar 68° 40°
- Apr 72° 43°
- May 76° 49°
- Jun 83° 52°
- Jul 89° 58°
- Aug 91° 59°
- Sep 87° 55°
- Oct 80° 49°
- Nov 73° 40°
- Dec 66° 36°
Each month: normal high (large) and low, °F. Fill: the month's normal mean, colder blue to hotter red.
How warm is Ramona in May?
The normal high is 76°F and the normal low 49°F, for a daily mean of 62.2°F. May is 4.9°F warmer than April and 5.3°F cooler than June. May is the 6th warmest month of the year in Ramona and the 8th wettest. Across the month the normal high rises 4°F, from 74°F on May 1 to 78°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 60°F and 65°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 17%).
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in |
|---|---|---|---|---|
| May 1 | 74°F | 46°F | 17% | 6% |
| May 8 | 74°F | 48°F | 15% | 5% |
| May 15 | 75°F | 49°F | 13% | 4% |
| May 22 | 76°F | 50°F | 11% | 3% |
| May 31 | 78°F | 50°F | 9% | 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 | 74°F | 46°F | 17% | 6% | 13 h 30 min |
| May 2 | 74°F | 47°F | 16% | 6% | 13 h 30 min |
| May 3 | 74°F | 47°F | 16% | 6% | 13 h 30 min |
| May 4 | 74°F | 47°F | 16% | 6% | 13 h 30 min |
| May 5 | 74°F | 47°F | 16% | 5% | 13 h 30 min |
| May 6 | 74°F | 48°F | 16% | 5% | 13 h 40 min |
| May 7 | 74°F | 48°F | 15% | 5% | 13 h 40 min |
| May 8 | 74°F | 48°F | 15% | 5% | 13 h 40 min |
| May 9 | 75°F | 48°F | 15% | 5% | 13 h 40 min |
| May 10 | 75°F | 48°F | 15% | 5% | 13 h 40 min |
| May 11 | 75°F | 49°F | 14% | 5% | 13 h 40 min |
| May 12 | 75°F | 49°F | 14% | 4% | 13 h 50 min |
| May 13 | 75°F | 49°F | 14% | 4% | 13 h 50 min |
| May 14 | 75°F | 49°F | 14% | 4% | 13 h 50 min |
| May 15 | 75°F | 49°F | 13% | 4% | 13 h 50 min |
| May 16 | 75°F | 49°F | 13% | 4% | 13 h 50 min |
| May 17 | 75°F | 49°F | 13% | 4% | 13 h 50 min |
| May 18 | 76°F | 50°F | 13% | 4% | 13 h 50 min |
| May 19 | 76°F | 50°F | 12% | 3% | 14 h |
| May 20 | 76°F | 50°F | 12% | 3% | 14 h |
| May 21 | 76°F | 50°F | 12% | 3% | 14 h |
| May 22 | 76°F | 50°F | 11% | 3% | 14 h |
| May 23 | 76°F | 50°F | 11% | 3% | 14 h |
| May 24 | 77°F | 50°F | 11% | 3% | 14 h |
| May 25 | 77°F | 50°F | 11% | 2% | 14 h |
| May 26 | 77°F | 50°F | 10% | 2% | 14 h |
| May 27 | 77°F | 50°F | 10% | 2% | 14 h 10 min |
| May 28 | 77°F | 50°F | 10% | 2% | 14 h 10 min |
| May 29 | 78°F | 50°F | 9% | 2% | 14 h 10 min |
| May 30 | 78°F | 50°F | 9% | 2% | 14 h 10 min |
| May 31 | 78°F | 50°F | 9% | 2% | 14 h 10 min |
- Normal high
- 76°FMay average
- Normal low
- 49°FMay average
- Precipitation
- 0.41 inmonth total
- Days with precipitation
- 40.01 inch or more
- Days at 90°F or more
- 2
- Daylight
- 13 h 30 min to 14 h 10 minMay 1 to May 31
- Days at 70°F or more
- 23
- Days at 80°F or more
- 9
- Sunshine
- 93%of clear-sky sunlight (NASA)
Source: NOAA NCEI 1991-2020 daily normals, station USW00053120; monthly normals. Daylight is computed from the place's latitude with NOAA's solar equations.
Does it rain in Ramona in May?
On a given May day the chance of 0.01 inch or more is 13% on average, highest around May 1 (17%). In all, 0.41 in falls on 4 days of a normal May.
In a normal May in Ramona, 2 days reach 90°F.
Source: NOAA NCEI 1991-2020 daily and monthly normals, station USW00053120.
What are the records for May in Ramona?
The warmest May temperature on Ramona's official record (since 1974) is 101°F, on May 25, 1974; the coldest is 29°F, on May 21, 1974. The wettest May brought 2.48 in (1977).
The May mean against the 1991-2020 normal of 62.2°F: 2021 62.0°F (−0.2), 2022 62.3°F (+0.1), 2023 60.9°F (−1.4), 2024 61.5°F (−0.7), 2025 63.8°F (+1.6), 2026 62.3°F (+0.1). 3 of 6 ran warmer than normal.
| May | Mean | Against normal | Precip. |
|---|---|---|---|
| 2021 | 62.0°F | −0.2°F | 0.02 in |
| 2022 | 62.3°F | +0.1°F | 0.02 in |
| 2023 | 60.9°F | −1.4°F | 0.47 in |
| 2024 | 61.5°F | −0.7°F | 0.11 in |
| 2025 | 63.8°F | +1.6°F | 0.22 in |
| 2026 | 62.3°F | +0.1°F | 0.33 in |
Source: records: ACIS, NWS threaded record RNMthr; recent months: ACIS, station USW00053120. Records and recent months use complete months only.
How does May in Ramona 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; Ramona's is 76°F.
Source: NOAA NCEI 1991-2020 monthly normals for every station in the state.