McKinleyville in Spring
In spring (March, April and May), McKinleyville sees average daytime highs around 55°F and overnight lows near 44°F, with 15.2 in of precipitation over about 35 wet days across the season. It is the 3rd-warmest season and the 2nd-wettest season.
Over the season highs climb from about 52°F in early March to 59°F by late May. The sky is clear or mostly clear about 30% of the time across spring, and the air most often feels dry.
Spring is McKinleyville's 3rd-best season to visit on our travel score. For the whole year in context, see McKinleyville's year-round climate.
- Avg daytime high
- 55°F
- 3rd-warmest season
- Avg overnight low
- 44°F
- Precipitation
- 15.2 in
- 35 wet days
- Avg wind
- 7 mph
- Travel score
- 3.5
- 3rd-best season
- Months
- Mar · Apr · May
Temperature in McKinleyville in Spring
Over the season highs climb from about 52°F in early March to 59°F by late May.
A typical spring day in McKinleyville reaches about 55°F and drops to 44°F overnight. The warmest of the three months is May, the coolest March.
McKinleyville weather by month
How the three spring months (March, April and May) compare with the rest of the year — the season's months are highlighted.
| Month | High / Low (°F) | Rainfall (inches) | Wet days | Snow days | Daylight (hours) | Travel score |
|---|---|---|---|---|---|---|
| Jan | 51° / 41° | 9.3 | 15.3 | 1.7 | 9.4 | 2.2 |
| Feb | 52° / 41° | 7.4 | 13.5 | 2.4 | 10.4 | 2.4 |
| Mar | 53° / 42° | 7.8 | 15.1 | 2.6 | 11.7 | 2.6 |
| Apr | 55° / 44° | 4.8 | 12.1 | 0.7 | 13.1 | 3.2 |
| May | 58° / 47° | 2.6 | 7.4 | 0 | 14.3 | 4.6 |
| Jun | 62° / 50° | 1.0 | 3.7 | 0 | 14.9 | 6.3 |
| Jul | 66° / 53° | 0.1 | 0.7 | 0 | 14.6 | 7.9 |
| Aug | 67° / 53° | 0.2 | 0.9 | 0 | 13.6 | 8.0 |
| Sep | 65° / 51° | 0.8 | 2.6 | 0 | 12.3 | 7.6 |
| Oct | 61° / 48° | 3.5 | 6.5 | 0 | 10.9 | 5.8 |
| Nov | 54° / 44° | 6.9 | 12.6 | 0.4 | 9.7 | 3.2 |
| Dec | 51° / 41° | 11.2 | 15.5 | 1.8 | 9.1 | 2.1 |
Cloud cover in Spring
The sky is clear or mostly clear about 30% of the time across spring.
Chance of precipitation in Spring
McKinleyville gets around 15.2 in of rain and snow over 35 wet days across spring. The line is the day-by-day chance of measurable precipitation.
Humidity in Spring
Most of spring feels dry — the stacked bands show each day's mix of comfort levels, read off the dew point.
Wind in Spring
Winds average 7 mph across spring.
Sunrise & sunset in Spring
Daylight runs from about 11 hours in early March to 14 h 42 min by late May. The lit band spans sunrise to sunset each day.
Solar energy in Spring
Average shortwave solar energy reaching the ground each day across spring, about 5.4 kWh/m².
Hazard calendar for McKinleyville
In spring, McKinleyville overlaps its rainy season season. The full year is below, with each hazard's peak months called out.
McKinleyville's rainy season runs November–March, when most of the year's rain falls.
Is spring a good time to visit McKinleyville?
Our two travel scores rate spring for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal), averaged across the three months.
spring is a weaker month for outdoor sightseeing in McKinleyville.
What to pack for McKinleyville in Spring
From spring's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In spring, McKinleyville sees daytime highs around 55°F and nights near 44°F. Pack a warm layer, rain gear and sun protection. About 35 days see rain.
Sea temperature near McKinleyville in Spring
The nearest coast averages about 52°F across spring — the other half of the beach question. The full-year curve and swim-comfort zones are below.
The sea offshore is warmest in August at about 55°F and coldest in March near 51°F.
The water stays below 68°F all year — cool enough that most swimmers want a wetsuit.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sea temperature (°F) | 52 | 52 | 51 | 52 | 52 | 53 | 54 | 55 | 55 | 54 | 53 | 53 |
| Comfort | Bracing | Bracing | Bracing | Bracing | Bracing | Bracing | Bracing | Bracing | Bracing | Bracing | Bracing | Bracing |
| Sea temperature (°F) | Comfort | |
|---|---|---|
| Jan | 52 | Bracing |
| Feb | 52 | Bracing |
| Mar | 51 | Bracing |
| Apr | 52 | Bracing |
| May | 52 | Bracing |
| Jun | 53 | Bracing |
| Jul | 54 | Bracing |
| Aug | 55 | Bracing |
| Sep | 55 | Bracing |
| Oct | 54 | Bracing |
| Nov | 53 | Bracing |
| Dec | 53 | Bracing |
UV index in McKinleyville in Spring
Clear-sky midday UV across spring averages around 7 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.
Under clear skies, the midday UV index in McKinleyville peaks around June 21 at about 9 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near December 15 at about 2 (low).
The index reaches 3 or more — the level where the WHO recommends sun protection — in 8 months of the year.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UV index (midday) | 2 | 3 | 5 | 6 | 9 | 10 | 9 | 8 | 5 | 5 | 2 | 2 |
| Level | Low | Moderate | Moderate | High | Very high | Very high | Very high | Very high | High | Moderate | Low | Low |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 2 | Low |
| Feb | 3 | Moderate |
| Mar | 5 | Moderate |
| Apr | 6 | High |
| May | 9 | Very high |
| Jun | 10 | Very high |
| Jul | 9 | Very high |
| Aug | 8 | Very high |
| Sep | 5 | High |
| Oct | 5 | Moderate |
| Nov | 2 | Low |
| Dec | 2 | Low |
Air quality in McKinleyville in Spring
Average fine-particle pollution (PM2.5) through the year — so you can see where spring falls, not just the annual average.
Air quality in McKinleyville is worst in September — around 154 µg/m³ PM2.5 (very unhealthy), about 39.6× the cleanest month (January, 4 µg/m³).
Modeled monthly averages (CAMS reanalysis, 2015–2024).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| PM2.5 (µg/m³) | 4 | 7 | 6 | 7 | 6 | 6 | 17 | 137 | 154 | 13 | 6 | 5 |
| Level | Good | Good | Good | Good | Good | Good | Moderate | Unhealthy | Very unhealthy | Moderate | Good | Good |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 4 | Good |
| Feb | 7 | Good |
| Mar | 6 | Good |
| Apr | 7 | Good |
| May | 6 | Good |
| Jun | 6 | Good |
| Jul | 17 | Moderate |
| Aug | 137 | Unhealthy |
| Sep | 154 | Very unhealthy |
| Oct | 13 | Moderate |
| Nov | 6 | Good |
| Dec | 5 | Good |
Where is McKinleyville?
McKinleyville sits at 40.9°N, 124.1°W, 144 ft above sea level, in United States. The nearest listed city is Arcata, 5.6 mi away.
Topography around McKinleyville
How much the land rises and falls, and what covers it, within 2, 10 and 50 miles of McKinleyville.
Within 2 miles, the terrain around McKinleyville has only modest variations in elevation — a maximum elevation change of 643 ft around an average of 180 ft above sea level; within 10 miles, large variations in elevation — a maximum elevation change of 3,038 ft; within 50 miles, very significant variations in elevation — a maximum elevation change of 7,415 ft.
The land around McKinleyville is covered by trees (50%) and grassland (23%) within 2 miles, trees (48%) and water (41%) within 10 miles, and trees (67%) and water (27%) within 50 miles.
United States travel facts
- Power plugs
- Type A / B
- 120 V · 60 Hz
- Prices
- ≈ 100% of US
- price level, 2025
- GDP per capita
- $90,027
- 2025
- Happiness
- 6.8 / 10
- World Happiness, 2025
- Safe drinking water
- 98%
- of population, 2024
- Homicide rate
- 5.8
- per 100k, 2023
- Road deaths
- 12.7
- per 100k/yr, 2019
- Income group
- High
- World Bank
- Religion
Sources: World Bank, US State Department, World Happiness Report, WHO/UNICEF, EF EPI, CIA World Factbook.
Data sources
Temperature, precipitation, cloud, humidity, wind and solar figures are a 1991–2020 climatology for McKinleyville (40.9465°, -124.1006°, elevation 144 ft), computed from hourly ERA5 reanalysis — contains modified Copernicus Climate Change Service information. Sun figures are astronomical calculations, not observations. City data © GeoNames, CC BY 4.0. Map outlines from Natural Earth (public domain); interactive map © Google.