Cottage Grove weather in May: Cottage Grove, Oregon: normal highs, lows, rain and records for May
Cottage Grove in May has a normal high of 68°F and a normal low of 44°F, a daily mean of 56°F, rising from 65°F on the 1st to 70°F by the 31st. Measurable precipitation falls on 13 days in a normal May, 3.11 inches in all. (NOAA 1991-2020 normals)
In metric: a normal high of 20°C and low of 6°C, 79 mm of precipitation in May.
- NOAA stationCottage Grove (2 mi E)
- Station IDUSC00351897
- Location43.79°N 123.03°W
- Elevation595 ft (181 m)
- Population10,690
- Jan 48° 33°
- Feb 52° 34°
- Mar 56° 35°
- Apr 61° 38°
- May 68° 44°
- Jun 73° 48°
- Jul 82° 51°
- Aug 83° 50°
- Sep 77° 46°
- Oct 64° 41°
- Nov 53° 37°
- Dec 47° 33°
Each month: normal high (large) and low, °F. Fill: the month's normal mean, colder blue to hotter red.
How warm is Cottage Grove in May?
The normal high is 68°F and the normal low 44°F, for a daily mean of 55.6°F. May is 5.9°F warmer than April and 4.9°F cooler than June. May is the 5th warmest month of the year in Cottage Grove and the 8th wettest. Across the month the normal high rises 5°F, from 65°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 54°F and 58°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 50%).
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in |
|---|---|---|---|---|
| May 1 | 65°F | 41°F | 50% | 31% |
| May 8 | 67°F | 42°F | 46% | 29% |
| May 15 | 68°F | 43°F | 43% | 27% |
| May 22 | 69°F | 45°F | 40% | 25% |
| May 31 | 70°F | 46°F | 37% | 22% |
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 | 65°F | 41°F | 50% | 31% | 14 h 10 min |
| May 2 | 65°F | 41°F | 49% | 31% | 14 h 10 min |
| May 3 | 65°F | 41°F | 49% | 30% | 14 h 10 min |
| May 4 | 66°F | 41°F | 48% | 30% | 14 h 20 min |
| May 5 | 66°F | 42°F | 47% | 30% | 14 h 20 min |
| May 6 | 66°F | 42°F | 47% | 29% | 14 h 20 min |
| May 7 | 66°F | 42°F | 46% | 29% | 14 h 20 min |
| May 8 | 67°F | 42°F | 46% | 29% | 14 h 30 min |
| May 9 | 67°F | 42°F | 45% | 28% | 14 h 30 min |
| May 10 | 67°F | 43°F | 45% | 28% | 14 h 30 min |
| May 11 | 67°F | 43°F | 44% | 28% | 14 h 30 min |
| May 12 | 67°F | 43°F | 44% | 28% | 14 h 30 min |
| May 13 | 68°F | 43°F | 43% | 27% | 14 h 40 min |
| May 14 | 68°F | 43°F | 43% | 27% | 14 h 40 min |
| May 15 | 68°F | 43°F | 43% | 27% | 14 h 40 min |
| May 16 | 68°F | 44°F | 42% | 27% | 14 h 40 min |
| May 17 | 68°F | 44°F | 42% | 27% | 14 h 50 min |
| May 18 | 68°F | 44°F | 42% | 26% | 14 h 50 min |
| May 19 | 69°F | 44°F | 41% | 26% | 14 h 50 min |
| May 20 | 69°F | 44°F | 41% | 26% | 14 h 50 min |
| May 21 | 69°F | 45°F | 40% | 26% | 14 h 50 min |
| May 22 | 69°F | 45°F | 40% | 25% | 15 h |
| May 23 | 69°F | 45°F | 40% | 25% | 15 h |
| May 24 | 69°F | 45°F | 39% | 25% | 15 h |
| May 25 | 69°F | 45°F | 39% | 24% | 15 h |
| May 26 | 69°F | 45°F | 39% | 24% | 15 h |
| May 27 | 70°F | 45°F | 38% | 24% | 15 h 10 min |
| May 28 | 70°F | 46°F | 38% | 23% | 15 h 10 min |
| May 29 | 70°F | 46°F | 38% | 23% | 15 h 10 min |
| May 30 | 70°F | 46°F | 37% | 23% | 15 h 10 min |
| May 31 | 70°F | 46°F | 37% | 22% | 15 h 10 min |
- Normal high
- 68°FMay average
- Normal low
- 44°FMay average
- Precipitation
- 3.11 inmonth total
- Days with precipitation
- 130.01 inch or more
- Daylight
- 14 h 10 min to 15 h 10 minMay 1 to May 31
- Days at 70°F or more
- 14
- Days at 80°F or more
- 4
- Sunshine
- 72%of clear-sky sunlight (NASA)
Source: NOAA NCEI 1991-2020 daily normals, station USC00351897; monthly normals. Daylight is computed from the place's latitude with NOAA's solar equations.
Does it rain in Cottage Grove in May?
On a given May day the chance of 0.01 inch or more is 43% on average, highest around May 1 (50%). In all, 3.11 in falls on 13 days of a normal May.
Source: NOAA NCEI 1991-2020 daily and monthly normals, station USC00351897.
What are the records for May in Cottage Grove?
The warmest May temperature on this station's record (since 1916) is 98°F, on May 18, 2008; the coldest is 23°F, on May 1, 1954. The wettest May brought 7.18 in (2005).
The May mean against the 1991-2020 normal of 55.6°F: 2021 55.1°F (−0.5), 2022 52.1°F (−3.5), 2023 59.7°F (+4.1), 2024 53.5°F (−2.1), 2025 55.6°F (at normal). 1 of 5 ran warmer than normal.
| May | Mean | Against normal | Precip. |
|---|---|---|---|
| 2021 | 55.1°F | −0.5°F | 2.63 in |
| 2022 | 52.1°F | −3.5°F | 5.88 in |
| 2023 | 59.7°F | +4.1°F | 0.57 in |
| 2024 | 53.5°F | −2.1°F | 3.31 in |
| 2025 | 55.6°F | at normal | 1.34 in |
Source: records: ACIS, station USC00351897; recent months: ACIS, station USC00351897. Records and recent months use complete months only.
How does May in Cottage Grove 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; Cottage Grove's is 68°F.
Source: NOAA NCEI 1991-2020 monthly normals for every station in the state.