Oregon City weather in May: Oregon City, Oregon: normal highs, lows, rain and records for May
Oregon City in May has a normal high of 71°F and a normal low of 48°F, a daily mean of 60°F, rising from 68°F on the 1st to 73°F by the 31st. The month brings 2.54 inches in all. (NOAA 1991-2020 normals)
In metric: a normal high of 22°C and low of 9°C, 65 mm of precipitation in May.
- NOAA stationOregon City
- Station IDUSC00356334
- Location45.36°N 122.60°W
- Elevation167 ft (51 m)
- Population38,327
- Jan 48° 37°
- Feb 53° 38°
- Mar 58° 40°
- Apr 64° 43°
- May 71° 48°
- Jun 76° 53°
- Jul 84° 57°
- Aug 84° 58°
- Sep 78° 53°
- Oct 65° 47°
- Nov 53° 41°
- Dec 47° 36°
Each month: normal high (large) and low, °F. Fill: the month's normal mean, colder blue to hotter red.
How warm is Oregon City in May?
The normal high is 71°F and the normal low 48°F, for a daily mean of 59.7°F. May is 6.3°F warmer than April and 4.9°F cooler than June. May is the 5th warmest month of the year in Oregon City and the 8th wettest. Across the month the normal high rises 5°F, from 68°F on May 1 to 73°F on May 31. From one year to the next May's mean temperature typically moves about 2.7°F either way (NOAA's standard deviation), so roughly two Mays in three average between 57°F and 62°F.
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in |
|---|---|---|---|---|
| May 1 | 68°F | 46°F | – | – |
| May 8 | 69°F | 47°F | – | – |
| May 15 | 71°F | 48°F | – | – |
| May 22 | 72°F | 50°F | – | – |
| May 31 | 73°F | 51°F | – | – |
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 | 68°F | 46°F | – | – | 14 h 10 min |
| May 2 | 68°F | 46°F | – | – | 14 h 20 min |
| May 3 | 68°F | 46°F | – | – | 14 h 20 min |
| May 4 | 68°F | 46°F | – | – | 14 h 20 min |
| May 5 | 69°F | 46°F | – | – | 14 h 30 min |
| May 6 | 69°F | 47°F | – | – | 14 h 30 min |
| May 7 | 69°F | 47°F | – | – | 14 h 30 min |
| May 8 | 69°F | 47°F | – | – | 14 h 30 min |
| May 9 | 70°F | 47°F | – | – | 14 h 40 min |
| May 10 | 70°F | 47°F | – | – | 14 h 40 min |
| May 11 | 70°F | 48°F | – | – | 14 h 40 min |
| May 12 | 70°F | 48°F | – | – | 14 h 40 min |
| May 13 | 71°F | 48°F | – | – | 14 h 50 min |
| May 14 | 71°F | 48°F | – | – | 14 h 50 min |
| May 15 | 71°F | 48°F | – | – | 14 h 50 min |
| May 16 | 71°F | 49°F | – | – | 14 h 50 min |
| May 17 | 71°F | 49°F | – | – | 15 h |
| May 18 | 72°F | 49°F | – | – | 15 h |
| May 19 | 72°F | 49°F | – | – | 15 h |
| May 20 | 72°F | 49°F | – | – | 15 h |
| May 21 | 72°F | 49°F | – | – | 15 h |
| May 22 | 72°F | 50°F | – | – | 15 h 10 min |
| May 23 | 72°F | 50°F | – | – | 15 h 10 min |
| May 24 | 73°F | 50°F | – | – | 15 h 10 min |
| May 25 | 73°F | 50°F | – | – | 15 h 10 min |
| May 26 | 73°F | 50°F | – | – | 15 h 10 min |
| May 27 | 73°F | 50°F | – | – | 15 h 20 min |
| May 28 | 73°F | 51°F | – | – | 15 h 20 min |
| May 29 | 73°F | 51°F | – | – | 15 h 20 min |
| May 30 | 73°F | 51°F | – | – | 15 h 20 min |
| May 31 | 73°F | 51°F | – | – | 15 h 20 min |
- Normal high
- 71°FMay average
- Normal low
- 48°FMay average
- Precipitation
- 2.54 inmonth total
- Days at 90°F or more
- 1
- Daylight
- 14 h 10 min to 15 h 20 minMay 1 to May 31
- Days at 70°F or more
- 16
- Days at 80°F or more
- 7
- Sunshine
- 68%of clear-sky sunlight (NASA)
Source: NOAA NCEI 1991-2020 daily normals, station USC00356334; monthly normals. Daylight is computed from the place's latitude with NOAA's solar equations.
Does it rain in Oregon City in May?
In a normal May in Oregon City, 1 days reach 90°F.
Source: NOAA NCEI 1991-2020 daily and monthly normals, station USC00356334.
What are the records for May in Oregon City?
The warmest May temperature on this station's record (since 1948) is 104°F, on May 28, 1983; the coldest is 31°F, on May 1, 1954. The wettest May brought 5.80 in (1960).
The May mean against the 1991-2020 normal of 59.7°F: 2021 59.4°F (−0.3), 2024 59.0°F (−0.7). 0 of 2 ran warmer than normal.
| May | Mean | Against normal | Precip. |
|---|---|---|---|
| 2021 | 59.4°F | −0.3°F | 2.29 in |
| 2024 | 59.0°F | −0.7°F | 3.08 in |
Source: records: ACIS, station USC00356334; recent months: ACIS, station USC00356334. Records and recent months use complete months only.
How does May in Oregon City compare across Oregon?
Across the 105 places PlainClimate covers in Oregon, May normal highs run from 54°F in Government Camp to 76°F in Ontario; Oregon City's is 71°F.
Source: NOAA NCEI 1991-2020 monthly normals for every station in the state.