Sequim weather in May: Sequim, Washington: normal highs, lows, rain and records for May
Sequim in May has a normal high of 62°F and a normal low of 44°F, a daily mean of 53°F, rising from 59°F on the 1st to 64°F by the 31st. Measurable precipitation falls on 11 days in a normal May, 1.16 inches in all. (NOAA 1991-2020 normals)
In metric: a normal high of 16°C and low of 7°C, 29 mm of precipitation in May.
- NOAA stationSequim (2 mi E)
- Station IDUSC00457544
- Location48.09°N 123.06°W
- Elevation50 ft (15 m)
- Population8,199
- Jan 46° 32°
- Feb 48° 32°
- Mar 51° 35°
- Apr 56° 38°
- May 62° 44°
- Jun 65° 49°
- Jul 70° 52°
- Aug 70° 51°
- Sep 66° 46°
- Oct 58° 40°
- Nov 50° 35°
- Dec 46° 32°
Each month: normal high (large) and low, °F. Fill: the month's normal mean, colder blue to hotter red.
How warm is Sequim in May?
The normal high is 62°F and the normal low 44°F, for a daily mean of 52.9°F. May is 6.1°F warmer than April and 4.2°F cooler than June. May is the 5th warmest month of the year in Sequim and the 8th wettest. Across the month the normal high rises 5°F, from 59°F on May 1 to 64°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 51°F and 55°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 37%).
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in |
|---|---|---|---|---|
| May 1 | 59°F | 41°F | 37% | 13% |
| May 8 | 60°F | 42°F | 35% | 13% |
| May 15 | 62°F | 44°F | 34% | 13% |
| May 22 | 63°F | 46°F | 34% | 13% |
| May 31 | 64°F | 47°F | 33% | 13% |
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 | 59°F | 41°F | 37% | 13% | 14 h 30 min |
| May 2 | 59°F | 41°F | 36% | 13% | 14 h 30 min |
| May 3 | 59°F | 41°F | 36% | 13% | 14 h 30 min |
| May 4 | 60°F | 41°F | 36% | 13% | 14 h 40 min |
| May 5 | 60°F | 42°F | 36% | 13% | 14 h 40 min |
| May 6 | 60°F | 42°F | 35% | 13% | 14 h 40 min |
| May 7 | 60°F | 42°F | 35% | 13% | 14 h 50 min |
| May 8 | 60°F | 42°F | 35% | 13% | 14 h 50 min |
| May 9 | 61°F | 43°F | 35% | 13% | 14 h 50 min |
| May 10 | 61°F | 43°F | 35% | 13% | 14 h 50 min |
| May 11 | 61°F | 43°F | 34% | 13% | 15 h |
| May 12 | 61°F | 43°F | 34% | 13% | 15 h |
| May 13 | 61°F | 44°F | 34% | 13% | 15 h |
| May 14 | 61°F | 44°F | 34% | 13% | 15 h 10 min |
| May 15 | 62°F | 44°F | 34% | 13% | 15 h 10 min |
| May 16 | 62°F | 44°F | 34% | 13% | 15 h 10 min |
| May 17 | 62°F | 45°F | 34% | 13% | 15 h 10 min |
| May 18 | 62°F | 45°F | 34% | 13% | 15 h 20 min |
| May 19 | 62°F | 45°F | 34% | 13% | 15 h 20 min |
| May 20 | 62°F | 45°F | 34% | 13% | 15 h 20 min |
| May 21 | 62°F | 46°F | 34% | 13% | 15 h 20 min |
| May 22 | 63°F | 46°F | 34% | 13% | 15 h 30 min |
| May 23 | 63°F | 46°F | 34% | 13% | 15 h 30 min |
| May 24 | 63°F | 46°F | 34% | 13% | 15 h 30 min |
| May 25 | 63°F | 46°F | 33% | 13% | 15 h 30 min |
| May 26 | 63°F | 46°F | 33% | 13% | 15 h 30 min |
| May 27 | 63°F | 47°F | 33% | 13% | 15 h 40 min |
| May 28 | 63°F | 47°F | 33% | 13% | 15 h 40 min |
| May 29 | 63°F | 47°F | 33% | 13% | 15 h 40 min |
| May 30 | 63°F | 47°F | 33% | 13% | 15 h 40 min |
| May 31 | 64°F | 47°F | 33% | 13% | 15 h 40 min |
- Normal high
- 62°FMay average
- Normal low
- 44°FMay average
- Precipitation
- 1.16 inmonth total
- Days with precipitation
- 110.01 inch or more
- Nights at 32°F or colder
- 1
- Daylight
- 14 h 30 min to 15 h 40 minMay 1 to May 31
- Days at 70°F or more
- 4
- Sunshine
- 71%of clear-sky sunlight (NASA)
Source: NOAA NCEI 1991-2020 daily normals, station USC00457544; monthly normals. Daylight is computed from the place's latitude with NOAA's solar equations.
Does it rain in Sequim in May?
On a given May day the chance of 0.01 inch or more is 34% on average, highest around May 1 (37%). In all, 1.16 in falls on 11 days of a normal May.
In a normal May in Sequim, 1 nights fall to freezing.
Source: NOAA NCEI 1991-2020 daily and monthly normals, station USC00457544.
What are the records for May in Sequim?
The warmest May temperature on this station's record (since 1980) is 86°F, on May 29, 1983; the coldest is 28°F, on May 10, 1999. The wettest May brought 3.17 in (2011).
The May mean against the 1991-2020 normal of 52.9°F: 2021 53.5°F (+0.6), 2024 53.3°F (+0.4), 2025 54.2°F (+1.3), 2026 57.3°F (+4.4). 4 of 4 ran warmer than normal.
| May | Mean | Against normal | Precip. |
|---|---|---|---|
| 2021 | 53.5°F | +0.6°F | 0.86 in |
| 2024 | 53.3°F | +0.4°F | 1.79 in |
| 2025 | 54.2°F | +1.3°F | 0.69 in |
| 2026 | 57.3°F | +4.4°F | 0.31 in |
Source: records: ACIS, station USC00457544; recent months: ACIS, station USC00457544. Records and recent months use complete months only.
How does May in Sequim compare across Washington?
Across the 96 places PlainClimate covers in Washington, May normal highs run from 59°F in Long Beach to 77°F in Pasco; Sequim's is 62°F.
Source: NOAA NCEI 1991-2020 monthly normals for every station in the state.