Coos Bay weather in March: Coos Bay, Oregon: normal highs, lows, rain and records for March
Coos Bay in March has a normal high of 56°F and a normal low of 38°F, a daily mean of 47°F, rising from 55°F on the 1st to 56°F by the 31st. Measurable precipitation falls on 21 days in a normal March, 8.45 inches in all. (NOAA 1991-2020 normals)
In metric: a normal high of 13°C and low of 3°C, 215 mm of precipitation in March.
- NOAA stationCoos Bay (8 mi SW)
- Station IDUSW00004141
- Location43.27°N 124.32°W
- Elevation12 ft (4 m)
- Population15,801
- Jan 52° 36°
- Feb 54° 37°
- Mar 56° 38°
- Apr 57° 39°
- May 60° 44°
- Jun 62° 47°
- Jul 64° 51°
- Aug 66° 50°
- Sep 66° 47°
- Oct 63° 42°
- Nov 56° 39°
- Dec 51° 36°
Each month: normal high (large) and low, °F. Fill: the month's normal mean, colder blue to hotter red.
How warm is Coos Bay in March?
The normal high is 56°F and the normal low 38°F, for a daily mean of 46.5°F. March is 1.2°F warmer than February and 1.6°F cooler than April. March is the 9th warmest month of the year in Coos Bay and the 5th wettest. Across the month the normal high rises 1°F, from 55°F on March 1 to 56°F on March 31. From one year to the next March's mean temperature typically moves about 2.3°F either way (NOAA's standard deviation), so roughly two Marchs in three average between 44°F and 49°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 70%).
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in |
|---|---|---|---|---|
| March 1 | 55°F | 37°F | 67% | 48% |
| March 8 | 55°F | 38°F | 67% | 47% |
| March 15 | 55°F | 38°F | 68% | 47% |
| March 22 | 56°F | 38°F | 69% | 48% |
| March 31 | 56°F | 38°F | 69% | 47% |
Every day of March: normal high, low and chance of precipitation (warmest afternoon March 30, coldest night March 1)
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in | Daylight |
|---|---|---|---|---|---|
| March 1 | 55°F | 37°F | 67% | 48% | 11 h 10 min |
| March 2 | 55°F | 37°F | 67% | 48% | 11 h 10 min |
| March 3 | 55°F | 37°F | 67% | 47% | 11 h 20 min |
| March 4 | 55°F | 37°F | 67% | 47% | 11 h 20 min |
| March 5 | 55°F | 37°F | 67% | 47% | 11 h 20 min |
| March 6 | 55°F | 37°F | 67% | 47% | 11 h 20 min |
| March 7 | 55°F | 38°F | 67% | 47% | 11 h 30 min |
| March 8 | 55°F | 38°F | 67% | 47% | 11 h 30 min |
| March 9 | 55°F | 38°F | 67% | 47% | 11 h 30 min |
| March 10 | 55°F | 38°F | 67% | 47% | 11 h 40 min |
| March 11 | 55°F | 38°F | 67% | 47% | 11 h 40 min |
| March 12 | 55°F | 38°F | 68% | 47% | 11 h 40 min |
| March 13 | 55°F | 38°F | 68% | 47% | 11 h 40 min |
| March 14 | 55°F | 38°F | 68% | 47% | 11 h 50 min |
| March 15 | 55°F | 38°F | 68% | 47% | 11 h 50 min |
| March 16 | 56°F | 38°F | 68% | 47% | 11 h 50 min |
| March 17 | 56°F | 38°F | 69% | 47% | 12 h |
| March 18 | 56°F | 38°F | 69% | 47% | 12 h |
| March 19 | 56°F | 38°F | 69% | 48% | 12 h |
| March 20 | 56°F | 38°F | 69% | 48% | 12 h 10 min |
| March 21 | 56°F | 38°F | 69% | 48% | 12 h 10 min |
| March 22 | 56°F | 38°F | 69% | 48% | 12 h 10 min |
| March 23 | 56°F | 38°F | 70% | 48% | 12 h 10 min |
| March 24 | 56°F | 38°F | 70% | 48% | 12 h 20 min |
| March 25 | 56°F | 38°F | 69% | 48% | 12 h 20 min |
| March 26 | 56°F | 38°F | 69% | 47% | 12 h 20 min |
| March 27 | 56°F | 38°F | 69% | 47% | 12 h 30 min |
| March 28 | 56°F | 38°F | 69% | 47% | 12 h 30 min |
| March 29 | 56°F | 38°F | 69% | 47% | 12 h 30 min |
| March 30 | 56°F | 38°F | 69% | 47% | 12 h 40 min |
| March 31 | 56°F | 38°F | 69% | 47% | 12 h 40 min |
- Normal high
- 56°FMarch average
- Normal low
- 38°FMarch average
- Precipitation
- 8.45 inmonth total
- Days with precipitation
- 210.01 inch or more
- Nights at 32°F or colder
- 8
- Daylight
- 11 h 10 min to 12 h 40 minMarch 1 to March 31
- Sunshine
- 65%of clear-sky sunlight (NASA)
Source: NOAA NCEI 1991-2020 daily normals, station USW00004141; monthly normals. Daylight is computed from the place's latitude with NOAA's solar equations.
Does it rain in Coos Bay in March?
On a given March day the chance of 0.01 inch or more is 68% on average, highest around March 23 (70%). In all, 8.45 in falls on 21 days of a normal March, 3 of them with an inch or more.
In a normal March in Coos Bay, 8 nights fall to freezing.
Source: NOAA NCEI 1991-2020 daily and monthly normals, station USW00004141.
What are the records for March in Coos Bay?
The March mean against the 1991-2020 normal of 46.5°F: 2021 43.6°F (−2.9), 2022 47.0°F (+0.5), 2023 41.9°F (−4.6), 2024 47.0°F (+0.5), 2025 47.4°F (+0.9), 2026 49.0°F (+2.5). 4 of 6 ran warmer than normal.
| March | Mean | Against normal | Precip. |
|---|---|---|---|
| 2021 | 43.6°F | −2.9°F | 7.68 in |
| 2022 | 47.0°F | +0.5°F | 5.39 in |
| 2023 | 41.9°F | −4.6°F | 10.98 in |
| 2024 | 47.0°F | +0.5°F | 12.00 in |
| 2025 | 47.4°F | +0.9°F | 15.75 in |
| 2026 | 49.0°F | +2.5°F | 0.00 in |
Source: recent months: ACIS, station USW00004141. Records and recent months use complete months only.
How does March in Coos Bay compare across Oregon?
Across the 105 places PlainClimate covers in Oregon, March normal highs run from 41°F in Government Camp to 62°F in Riddle; Coos Bay's is 56°F.
Source: NOAA NCEI 1991-2020 monthly normals for every station in the state.