Naselle, Washington climate: Normal weather by month, frost dates and records
Naselle's normal year runs from 33°F December nights to 74°F August afternoons, with 112.2 inches of precipitation and 2 inches of snow a year. (NOAA 1991-2020 normals)
In metric: a yearly mean of 10.4°C, December lows of 1°C, August highs of 24°C, 2,850 mm of precipitation a year.
- NOAA stationNaselle (2 mi ENE)
- Station IDUSC00455774
- Location46.37°N 123.75°W
- Elevation50 ft (15 m)
- From the center1 miles
- Population (census place)519
On October 23, the normal high in Naselle is 61°F and the normal low 40°F, and the chance of measurable rain or snow is 60%.
Normals describe a typical year at the station, not a forecast. The National Weather Service forecast for Naselle.
- Jan 49° 34°
- Feb 51° 33°
- Mar 55° 35°
- Apr 59° 38°
- May 64° 44°
- Jun 67° 47°
- Jul 72° 50°
- Aug 74° 51°
- Sep 72° 46°
- Oct 63° 41°
- Nov 54° 36°
- Dec 47° 33°
Each month: normal high (large) and low, °F. Fill: the month's normal mean, colder blue to hotter red.
What is the weather like in Naselle each month?
August is the warmest month, with normal highs of 74°F; December the coldest, with normal lows of 33°F. The most precipitation falls in December (18.27 in), the least in July (1.20 in).
| Month | High | Low | Mean | Precip. | Snow | Wet days | 90°F days | Freezing nights | Daylight |
|---|---|---|---|---|---|---|---|---|---|
| January | 49°F | 34°F | 41.4°F | 17.77 | 1.0 | 22 | <1 | 14 | 9 h |
| February | 51°F | 33°F | 42.1°F | 11.59 | 0.3 | 19 | <1 | 14 | 10 h 20 min |
| March | 55°F | 35°F | 45.2°F | 12.49 | 0.1 | 22 | <1 | 11 | 11 h 50 min |
| April | 59°F | 38°F | 48.6°F | 8.70 | 0.0 | 20 | <1 | 6 | 13 h 30 min |
| May | 64°F | 44°F | 53.7°F | 4.65 | 0.0 | 16 | <1 | 1 | 15 h |
| June | 67°F | 47°F | 57.1°F | 3.63 | 0.0 | 14 | 1 | <1 | 15 h 50 min |
| July | 72°F | 50°F | 61.2°F | 1.20 | 0.0 | 8 | 1 | <1 | 15 h 30 min |
| August | 74°F | 51°F | 62.6°F | 1.87 | 0.0 | 7 | 2 | <1 | 14 h 10 min |
| September | 72°F | 46°F | 59.4°F | 4.27 | 0.0 | 11 | 1 | 1 | 12 h 40 min |
| October | 63°F | 41°F | 52.0°F | 10.70 | 0.0 | 17 | <1 | 4 | 11 h |
| November | 54°F | 36°F | 45.2°F | 17.07 | 0.0 | 22 | <1 | 10 | 9 h 30 min |
| December | 47°F | 33°F | 40.1°F | 18.27 | 0.3 | 23 | <1 | 16 | 8 h 40 min |
| Year (annual) | 61°F | 41°F | 50.7°F | 112.21 | 1.7 | 201 | 5 | 76 |
The same normals in °C and millimetres
| Month | High | Low | Mean | Precip. | Snow |
|---|---|---|---|---|---|
| January | 9°C | 1°C | 5.2°C | 451 mm | 3 cm |
| February | 11°C | 1°C | 5.6°C | 294 mm | 1 cm |
| March | 13°C | 2°C | 7.3°C | 317 mm | 0 cm |
| April | 15°C | 3°C | 9.2°C | 221 mm | 0 cm |
| May | 18°C | 6°C | 12.1°C | 118 mm | 0 cm |
| June | 20°C | 8°C | 13.9°C | 92 mm | 0 cm |
| July | 22°C | 10°C | 16.2°C | 30 mm | 0 cm |
| August | 24°C | 11°C | 17.0°C | 47 mm | 0 cm |
| September | 22°C | 8°C | 15.2°C | 108 mm | 0 cm |
| October | 17°C | 5°C | 11.1°C | 272 mm | 0 cm |
| November | 12°C | 2°C | 7.3°C | 434 mm | 0 cm |
| December | 8°C | 1°C | 4.5°C | 464 mm | 1 cm |
Source: NOAA NCEI 1991-2020 monthly normals, station USC00455774; annual normals. Wet days: 0.01 inch or more; 90°F days and freezing nights: NOAA's day counts. Daylight: sunrise to sunset on the 15th, computed from the latitude.
When is the best weather to visit Naselle?
Normal highs sit between 65°F and 85°F in June, July, August and September. Of those, August has the fewest days with rain (7).
That is a measurement, not a recommendation: it counts the months whose normal afternoon high sits between 65°F and 85°F, where a light layer is enough by day.
Source: NOAA NCEI 1991-2020 monthly normals, station USC00455774.
When is the last frost in Naselle?
In Naselle, the last spring frost (32°F) comes after April 24 in half of years and after May 11 in one year in ten; the first autumn frost comes before October 20 in half of years and before October 1 in one year in ten.
Frost-free in half of yearsFrost in 1 to 9 years out of 10Frost most years
- Last spring frost, half of years after
- April 241 year in 10 after May 11; 9 in 10 after March 31
- First autumn frost, half of years before
- October 201 year in 10 before October 1; 9 in 10 before November 7
NOAA puts the median frost-free season at 179 days, and the season without a hard freeze (28°F) at 234 days.
A hard freeze (28°F) comes after March 19 in half of springs and before November 6 in half of autumns.
The USDA's 2023 Plant Hardiness Zone Map puts Naselle in zone 8b in ZIP code 98638, the nearest ZIP area.
Frost dates for every NOAA station in Washington · Frost dates by ZIP code
Source: NOAA NCEI 1991-2020 annual normals (frost probabilities), station USC00455774; USDA 2023 Plant Hardiness Zone Map, ZIP listings: PRISM Group, Oregon State University, https://prism.oregonstate.edu, accessed October 8, 2026. A 10% date means one year in ten has a frost after it in spring or before it in autumn.
How hot and how cold does it get in Naselle?
In a normal year in Naselle, 5 days a year reach 90°F, 76 nights fall to 32°F or colder and 201 days bring measurable precipitation.
- Days at 90°F or more
- 5a normal year
- Days at 100°F or more
- fewer than 1a normal year
- Nights at 32°F or colder
- 76a normal year
- Days that stay below freezing
- fewer than 1high of 32°F or less
- Days with 0.01 inch of precipitation
- 201a normal year
- Days with 1 inch of snow or more
- 1a normal year
Source: NOAA NCEI 1991-2020 annual normals, station USC00455774.
How sunny is Naselle?
Over a year 67% of the sunlight that would reach the ground under clear skies gets through the clouds in the area around Naselle, 3.5 kWh per square metre a day. July is the sunniest month (78%) and December the cloudiest (52%).
| Month | Share of clear-sky sunshine | Sunshine, kWh/m² a day |
|---|---|---|
| January | 52% | 1.1 |
| February | 59% | 2.0 |
| March | 57% | 2.9 |
| April | 62% | 4.2 |
| May | 66% | 5.2 |
| June | 67% | 5.7 |
| July | 78% | 6.4 |
| August | 78% | 5.4 |
| September | 75% | 4.0 |
| October | 65% | 2.4 |
| November | 55% | 1.3 |
| December | 52% | 0.9 |
Source: NASA POWER solar climatology, 2001-2020 (CERES SYN1deg). Satellite-based, for the 1-degree cell (about 100 km across) around the station, so it describes the area rather than the airport.
How much heating and cooling does Naselle need?
A normal year in Naselle brings 5,253 heating degree days, 2% fewer than the median U.S. place (5,373), and 53 cooling degree days, 94% fewer than the median (908). Eight months need 300 or more heating degree days, a monthly mean of about 55°F or colder. For gardens and crops, NOAA counts 1,536 growing degree days a year above 50°F.
| Month | Heating | Cooling |
|---|---|---|
| January | 733 | 0 |
| February | 641 | 0 |
| March | 615 | 0 |
| April | 494 | 0 |
| May | 352 | 2 |
| June | 242 | 5 |
| July | 129 | 11 |
| August | 99 | 25 |
| September | 178 | 10 |
| October | 403 | 0 |
| November | 594 | 0 |
| December | 772 | 0 |
| Year (annual) | 5,253 | 53 |
Source: NOAA NCEI 1991-2020 monthly normals, station USC00455774. A degree day is one degree of a day's mean temperature below 65°F (heating) or above it (cooling); utilities use them to estimate energy use.
Has Naselle been warmer than normal lately?
2021 averaged 50.2°F, 0.5°F below the 1991-2020 normal of 50.7°F.
| Year | Mean | Against normal | Precip. | Snow |
|---|---|---|---|---|
| 2021 | 50.2°F | −0.5°F | 112.85 | – |
Source: observed years: ACIS, station USC00455774. A year counts only with all twelve months complete.
How does Naselle's climate compare?
Naselle is warmer than 50 of the other 95 places with their own NOAA record in Washington, and wetter than 87. Across the 7,247 U.S. stations with normals, its annual mean of 50.7°F is warmer than 44%.
In the Köppen classification computed from these normals, Naselle is Csb: temperate, dry-summer, warm summer. What the classes mean.
Places with the most similar year elsewhere
Measured month by month on the normal high, low and precipitation, among places of 20,000 or more people in other states:
Source: NOAA NCEI 1991-2020 normals for every station PlainClimate covers. Similarity: the root-mean-square difference of the 36 monthly figures, precipitation weighted so an inch counts like 6°F.
Which places near Naselle share this climate record?
2 places have no NOAA station with 1991-2020 normals of their own, and this station is the nearest full record. A place's own climate can differ from these figures, by several degrees where it sits much higher or lower than the station, nearer the coast, or inside a large city's heat; for the larger places the next nearest records are named with their yearly mean, so the spread around them is visible, and places of 50,000 or more have their own page with NOAA's gridded normals.
- Svensen, OR897 people · 16 mi S
- Deep River, WA197 people · 3 mi SE
Source: Census Bureau 2024 Gazetteer (place centers) and Vintage 2024 population estimates. Distance and direction from the station to each place's center.
Questions about Naselle's climate
What is the coldest month in Naselle?
December, with a normal high of 47°F and a normal low of 33°F. The warmest is August (74°F by day, 51°F at night).
Does it snow in Naselle?
Yes: 2 inches in a normal year, falling on 2 days with 0.1 inch or more, the most in January (1.0 inches).
What is the rainiest month in Naselle?
December, with 18.27 in of precipitation in a normal year; the driest is July with 1.20 in.
What plant hardiness zone is Naselle in?
The USDA's 2023 map puts Naselle in zone 8b in ZIP code 98638, the nearest ZIP area.
How late can frost come in Naselle?
In half of years the last 32°F night comes after April 24; in one year in ten it comes after May 11. Waiting until May 11 leaves about a one-in-ten chance of a later frost.
Nearby and next
- Washington climateThe statewide normals and every place in the state
- Grays River Hatchery, WA9 miles from this station, 51.6°F a year
- Long Beach, WA14 miles from this station, 49.8°F a year
- Astoria, OR16 miles from this station, 51.4°F a year
- Fort Clatsop National Mem, OR17 miles from this station, 51.8°F a year
- Compare two placesMonth by month, side by side
Download these normals (CSV) · JSON · How these figures are made